Lenses can be used to compact and/or shape a beam of light from any variable multimode light source such as a laser that has a larger beam footprint. The lenses are a cylindrical or toroidal pair that is disposed between any magnification lenses and the screen so that the magnified light beam can be appropriately directed to the screen. The lenses are different from magnification lenses in that the lens pair does not magnify the light beam, but rather, adjusts in the single mode (SM) direction and one dimension in the multimode (MM) direction. One of the lenses of the lens pair is negative while the other lens is positive. In so doing, then lens pair provides the light beam in a focal point on a non-uniform two-dimensional portion of the screen.
B81B 7/02 - Microstructural systems containing distinct electrical or optical devices of particular relevance for their function, e.g. microelectro-mechanical systems [MEMS]
2.
BEAM SCANNING ENGINE AND DISPLAY SYSTEM WITH MULTIPLE BEAM SCANNERS
A display system includes a display screen, a light source to generate a light beam to be modulated in accordance with image data, and a beam scanning module to receive the light beams and to direct the light beam onto an associated display region of the display screen. The beam scanning module includes a resonant scanning mirror configured to scan the light beam along a first scanning direction across the associated display region, and a polygon scanning mirror to scan the light beam along a second scanning direction across the associated display region.
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
A display system includes a display screen, where the display screen includes one or more transparent substrates, such as glass, plastic, or the like, a plurality of transparent adhesive pads, a plurality of white ink or adhesive deposits (e.g., a UV cured adhesive), a plurality of light absorbing material, such as black ink deposits, a plurality of gaskets, a color filter/mirror film, and a plurality of phosphors. The display screen may additionally include a thin anti-glare layer. The plurality of transparent adhesive pads and the thin anti-glare layer provide support to the plurality of phosphors, such that the plurality of phosphors are not in direct contact with the one or more transparent substrates and/or the color filter/mirror film. The plurality of white ink deposits may prevent light diffusion from one phosphor to another phosphor and the plurality of light absorbing material, such as black ink deposits, aids in increasing contrast between the phosphors.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Downloadable computer software for creating an interactive user interface by combining functional applications, data storage and exchange, video conferencing, web services, the interactive workspace is shared by and simultaneously accessible from multiple locations; Computer servers and computer peripherals for operating the aforementioned computer software; Multiple display systems, namely, flat panel display screens, LCD large screen displays, electronic display boards, touch screens, and downloadable and recorded computer software distributed among various distinct sites for sharing and displaying touch or pointer based interactive applications, content, and video conferencing provided locally to the display or shared from a remote server where teams can create, edit, and share documents and data Computer services, namely, creating an on-line virtual environment permitting rendering of and user interaction with different data types including, text, images, audio, and video; Providing technology information and consultation services in the field of computers, computer software, displays, and computer data storage services therewith
5.
Beam scanning engine and display system with multiple beam scanners
A display system includes a display screen, a light source to generate a light beam to be modulated in accordance with image data, and a beam scanning module to receive the light beams and to direct the light beam onto an associated display region of the display screen. The beam scanning module includes a resonant scanning mirror configured to scan the light beam along a first scanning direction across the associated display region, and a polygon scanning mirror to scan the light beam along a second scanning direction across the associated display region.
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
G02B 26/12 - Scanning systems using multifaceted mirrors
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
H04N 9/31 - Projection devices for colour picture display
6.
Method for producing flat ribbon structures with continuous extruded fibers for laser phosphor displays
The present disclosure generally relates to micro-ribbon structures used in display systems and methods of fabrication thereof. Individual fibers are made using an extrusion process whereby a core surrounded by an ink portion is extruded to create an individual fiber. The ink portion may include both an inner portion that is in contact with the core and an outer shell portion over the inner portion. The individual fibers are then bonded to adjacent fibers to create micro-ribbon structures. The micro-ribbon structures are of one color and spaced from adjacent micro-ribbon structures of a different color by a light blocking fiber. The micro-ribbon structures are each bonded to the light blocking fiber to create the color stripes used in the display system.
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
A display system includes a display screen, a light source to generate a light beam to be modulated in accordance with image data, and a beam scanning module to receive the light beams and to direct the light beam onto an associated display region of the display screen. The beam scanning module includes a resonant mirror configured to scan the light beam along a first scanning direction across the associated display region, and a linear scanning mirror to scan the light beam along a second scanning direction across the associated display region. The beam scanning module also includes an integral fold mirror positioned to reflect the light beam from the light source to the resonant mirror.
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
Certain aspects of the present disclosure provide techniques for a front panel for a video display system. According to disclosed embodiments, a substrate is fabricated to incorporate materials having desired functional properties, such as the blocking of ultraviolet visible (UVV) laser light, and near infrared light, into the substrate material. After extrusion of the substrate with desired functional properties, an anti-glare hardcoat may be spray-coated to the front and back of the front panel to provide anti-glare as well as anti-stiction properties.
A display system includes a display screen with at least one servo feedback mark in each of a plurality of display regions, and a plurality of subsystems each subsystem configured to generate an image on an associated display region. Each subsystem generate a plurality of scanning beams including an excitation beam and a servo beam, a beam scanning module, a servo feedback detector, and a controller. The beam scanning module includes a resonant scanning mirror configured to scan the scanning beams along a first scanning direction and a linear scanning mirror to scan the scanning beams along a second scanning direction. The controller is configured to receive image data, to modulate the excitation beam in accordance with the image data, and to control timing of modulation of the excitation beam based on the monitor signal to align the modulation with corresponding pixel positions on the display screen.
A display system includes a display screen with at least one servo feedback mark in each of a plurality of display regions, and a plurality of subsystems each subsystem configured to generate an image on an associated display region. Each subsystem generate a plurality of scanning beams including an excitation beam and a servo beam, abeam scanning module, a servo feedback detector, and a controller. The beam scanning module includes a resonant scanning mirror configured to scan the scanning beams along a first scanning direction and a linear scanning mirror to scan the scanning beams along a second scanning direction. The controller is configured to receive image data, to modulate the excitation beam in accordance with the image data, and to control timing of modulation of the excitation beam based on the monitor signal to align the modulation with corresponding pixel positions on the display screen.
A method and apparatus to drive a laser diode are disclosed comprising increasing a bias current to the laser diode to a threshold level, wherein the threshold level is below an actuation level of the laser diode and wherein a resistor is placed in parallel to the laser diode, charging a capacitance to a precharge capacitance of a circuit including the laser diode, wherein the precharge capacitance is below a capacitance actuation level of the laser diode; and actuating the laser diode.
G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
H01S 5/026 - Monolithically integrated components, e.g. waveguides, monitoring photo-detectors or drivers
12.
Techniques for displaying shared digital assets consistently across different displays
In one embodiment of the present invention, a collaboration engine is configured to display shared digital assets consistently across displays. The collaboration engine receives container metadata generated based on a first location and first size of a digital asset within a first scaled workspace displayed on a first display. In response, the collaboration engine computes a second location and second size of the digital asset based on the container metadata and the size of a second scaled workspace. Finally, the collaboration engine configures the second device to display the digital asset within the second scaled workspace based on the second location and the second size. Notably, the container metadata correlates to the appearance of the digital asset on the first display, and the appearance of the digital asset on the second display correlates to the container metadata. Consequently, the appearance of the digital asset is consistent across the displays.
G06F 16/954 - Navigation, e.g. using categorised browsing
G06F 3/0354 - Pointing devices displaced or positioned by the userAccessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
G06F 3/0488 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
13.
Beam scanning engine and display system with multiple beam scanners
A display system includes a display screen, a light source to generate a light beam to be modulated in accordance with image data, and a beam scanning module to receive the light beams and to direct the light beam onto an associated display region of the display screen. The beam scanning module includes a resonant scanning mirror configured to scan the light beam along a first scanning direction across the associated display region, and a polygon scanning mirror to scan the light beam along a second scanning direction across the associated display region.
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
A method and apparatus to drive a laser diode are disclosed comprising increasing a bias current to the laser diode to a threshold level, wherein the threshold level is below an actuation level of the laser diode and wherein a resistor is placed in parallel to the laser diode, charging a capacitance to a precharge capacitance of a circuit including the laser diode, wherein the precharge capacitance is below a capacitance actuation level of the laser diode; and actuating the laser diode.
G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
H01S 5/026 - Monolithically integrated components, e.g. waveguides, monitoring photo-detectors or drivers
15.
Disparate workflow integration using a meshed visualization canvas
Techniques are described to support shared applications, including a shared application that permits retrieval, presentation and traversal of information resources. The innovative techniques enable multiple participants at different locations to both see and interact with assets such as a web-based content. The innovative techniques centralize the functionality of an application that is to be shared. A shared application is executed, during a collaboration, at a centralized location in a manner that does not require any local resources to create an application instance.
A display system includes a display screen, a plurality of subsystems, and a control system. The plurality of subsystems each generate an excitation beam that carries image information and a servo beam. For each subsystem, a servo feedback detector receives feedback light of the servo beam, detects the servo feedback mark, and produces a monitor signal. For each subsystem, a control unit is operable to adjust optical energies carried by the excitation beam using a scaling factor. Two adjacent subsystems of the plurality of subsystems are configured such that in operation the areas scanned by the excitation beams of the two subsystems overlap in an overlap region. The control system is configured to determine a range of the overlap region based on the monitor signals from the servo feedback detectors of the adjacent subsystems, and to determine the scaling factors for the excitation beams for the overlap region.
Techniques are described to support shared applications, including a shared application that permits retrieval, presentation and traversal of information resources. The innovative techniques enable multiple participants at different locations to both see and interact with assets such as a web-based content. The innovative techniques centralize the functionality of an application that is to be shared. A shared application is executed, during a collaboration, at a centralized location in a manner that does not require any local resources to create an application instance.
Various embodiments provide confidentiality-based file hosting by automatically directing assets in a shared workspace to appropriate storage locations. The storage location can be determined by comparing a security level that is associated with an asset to security levels of multiple possible storage locations. If a security level of the asset is changed in the shared workspace, the asset is automatically directed to an appropriate storage location based on the changed security level. This can include directing the asset to either a more secure or a less secure storage location.
Large format display systems are described that are reconfigurable between an open configuration designed for performing maintenance on the system and a closed configuration designed for normal operations of the display system. In the closed configuration, the display screen is intentionally subjected to a substantial amount of tensile force to advantageously stabilize the display screen. That substantial tensile force is generated by a sturdy stationary frame that the display screen is anchored against in the closed configuration. When the display system is reconfigured to the open configuration, the display system is no longer anchored against the stationary frame. The process of reconfiguring the display system from the closed configuration to the open configuration includes relieving most of the tensile force applied to the display screen using adjustable tensioning mechanisms of the display systems.
A display screen includes a filter layer, a fluorescent layer having parallel fluorescent stripes, and an attachment layer between an excitation side of the fluorescent layer and a first side of the filter layer to attach the excitation side of fluorescent layer to the filter layer while providing vertical separation therebetween. The attachment layer includes attachment regions that are separated from each other by lateral spacings such that excitation-side air gaps are formed between areas of the fluorescent layer and the filter layer that correspond to the lateral spacings. During display operation, excitation light received on a second side of the filter layer propagates through to the first side of the filter layer, and at least a portion of the excitation light that propagates from the second side of the filter layer travels through the excitation-side air gaps to excite the fluorescent stripes.
Techniques are described to support shared applications, including a shared application that permits retrieval, presentation and traversal of information resources. The innovative techniques enable multiple participants at different locations to both see and interact with assets such as a web-based content. The innovative techniques centralize the functionality of an application that is to be shared. A shared application is executed, during a collaboration, at a centralized location in a manner that does not require any local resources to create an application instance.
Various embodiments provide confidentiality-based file hosting by automatically directing assets in a shared workspace to appropriate storage locations. The storage location can be determined by comparing a security level that is associated with an asset to security levels of multiple possible storage locations. If a security level of the asset is changed in the shared workspace, the asset is automatically directed to an appropriate storage location based on the changed security level. This can include directing the asset to either a more secure or a less secure storage location.
Techniques are described to support undo and redo operations in connection with a digital ink canvas on an appliance that can take part in a collaboration amongst multiple appliances that can share content. The digital ink canvas is a digital area that accepts inputs from a user and renders a digital stroke. The described techniques make use of a navigable history palette which includes individual history entries that each provide a visual representation of a state of the digital ink canvas at some point during the collaboration. The history palette provides a navigable user interface instrumentality which permits panning through the history palette to enable user to select a particular visual representation. The digital ink canvas is then returned to the state associated with the selected visual representation. The selected visual representation can be provided across the appliances participating in the virtual collaboration.
G06T 11/20 - Drawing from basic elements, e.g. lines or circles
G06F 3/0481 - Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
G06F 3/0484 - Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
25.
Large display systems with screen tension adjustability
Large format display systems are described that are reconfigurable between an open configuration designed for performing maintenance on the system and a closed configuration designed for normal operations of the display system. In the closed configuration, the display screen is intentionally subjected to a substantial amount of tensile force to advantageously stabilize the display screen. That substantial tensile force is generated by a sturdy stationary frame that the display screen is anchored against in the closed configuration. When the display system is reconfigured to the open configuration, the display system is no longer anchored against the stationary frame. The process of reconfiguring the display system from the closed configuration to the open configuration includes relieving most of the tensile force applied to the display screen using adjustable tensioning mechanisms of the display systems.
The present disclosure generally relates to a LPD system having a plurality of detectors for detecting light reflected from the back surface of the screen. The detectors are positioned to detect light from one or more portions of the screen that are not directly in front of the detector.
H04N 9/31 - Projection devices for colour picture display
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
27.
Vacuum hold-down of seamless image panel to polycarbonate protective frontplane
The disclosure described herein generally relates to an image panel and a method of compressing the image panel. A breather assembly is coupled to at least one edge of the image panel and a vacuum is drawn through the breather assembly to pull the image panel portion and the front panel into intimate contact with phosphors sandwiched therebetween. The breather assembly draws the vacuum from the air pockets between adjacent phosphors to pull the image panel flat and thus prevent image artifacts from forming while also permitting the image panel portion and the front plane panel to move independently.
G06F 1/16 - Constructional details or arrangements
G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
28.
Compensation for overlapping scan lines in a scanning-beam display system
A display system includes a display screen, a plurality of subsystems, and a control system. The plurality of subsystems each generate an excitation beam that carries image information and a servo beam. For each subsystem, a servo feedback detector receives feedback light of the servo beam, detects the servo feedback mark, and produces a monitor signal. For each subsystem, a control unit is operable to adjust optical energies carried by the excitation beam using a scaling factor. Two adjacent subsystems of the plurality of subsystems are configured such that in operation the areas scanned by the excitation beams of the two subsystems overlap in an overlap region. The control system is configured to determine a range of the overlap region based on the monitor signals from the servo feedback detectors of the adjacent subsystems, and to determine the scaling factors for the excitation beams for the overlap region.
Implementations described herein generally relate to scanning beam display systems and more specifically, to systems and methods for improved image alignment of such scanning beam display systems. The method comprises providing a display system comprising a display screen having a plurality of display screen region each with a corresponding light engine module having a servo laser beam and an excitation laser beam, scanning the servo laser beam of a light engine module in an outer scanning region outside of the light engine module's corresponding display screen region, detecting servo laser beam feedback light to measure an alignment error of the light engine module relative to the light engine module's corresponding display screen region, and adjusting alignment of the excitation laser beam based on the measured alignment error.
A display screen includes a filter layer, a fluorescent layer having parallel fluorescent stripes, and an attachment layer between an excitation side of the fluorescent layer and a first side of the filter layer to attach the excitation side of fluorescent layer to the filter layer while providing vertical separation therebetween. The attachment layer includes attachment regions that are separated from each other by lateral spacings such that excitation-side air gaps are formed between areas of the fluorescent layer and the filter layer that correspond to the lateral spacings. During display operation, excitation light received on a second side of the filter layer propagates through to the first side of the filter layer, and at least a portion of the excitation light that propagates from the second side of the filter layer travels through the excitation-side air gaps to excite the fluorescent stripes.
Various embodiments enable one or more appliances to participate in a shared workspace. The shared workspace can include a single appliance, multiple appliances, a single meeting room, multiple meeting rooms, or any combination thereof. The state of various meeting participants can be identified and one or more rules can be applied to the participants' state to provide an outcome. An “outcome” can be thought of as an action that is to be performed responsive to the identified state. An asset interaction control feature can be selected based on the outcome. The asset interaction control feature controls, in some manner, a participant's interaction with one or more assets that are part of the shared workspace. The asset interaction control feature is then applied to at least one of the assets.
G06F 15/16 - Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
H04L 29/08 - Transmission control procedure, e.g. data link level control procedure
32.
Display screen with graphical user interface for aspect ratio selection
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
computer hardware appliance with computer software for workplace collaboration in the nature of document and media sharing, presentations, multi-party editing and voice communications Software as a Service (SAAS) services featuring cloud-based software solutions for workplace collaboration in the nature of document and media sharing, presentations, multi-party editing and voice communications
The present disclosure generally relates to a LPD system having a plurality of detectors for detecting light reflected from the back surface of the screen. The detectors are positioned to detect light from one or more portions of the screen that are not directly in front of the detector.
A client application coupled to a display generates a shared workspace that includes a content stream derived from a local user device a well as another content stream derived from a remote device. The client application is configured to detect when a user device is coupled locally, and to receive a content stream from that device. The client application determines when the other content stream is available, and then accesses that content stream via a streaming infrastructure. The client application then generates the shared workspace by rendering the two content streams to a display.
G06F 15/16 - Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
H04L 29/08 - Transmission control procedure, e.g. data link level control procedure
One embodiment of the present invention sets forth a method for displaying content on a gesture-sensitive display surface. The method includes causing an interactive window asset to be displayed on the gesture-sensitive surface with at least one of an adjustable display height, an adjustable display width, and an adjustable display location on the gesture-sensitive display surface, wherein the interactive window asset includes at least one display output generated by a software application and is configured to receive one or more software application inputs via the gesture-sensitive display surface, receiving a mode change input via the gesture-sensitive display surface, and, in response to receiving the mode change input, causing the interactive window asset to be displayed on the gesture-sensitive display surface with a fixed display height, a fixed display width, and a fixed display location.
G06F 15/16 - Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
G06F 3/0481 - Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
G06F 3/0484 - Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
G06F 3/0488 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
H04L 29/08 - Transmission control procedure, e.g. data link level control procedure
H04L 29/06 - Communication control; Communication processing characterised by a protocol
38.
Multilayered screens for scanning beam display systems
A display screen includes a filter layer, a fluorescent layer having parallel fluorescent stripes, and an attachment layer between an excitation side of the fluorescent layer and a first side of the filter layer to attach the excitation side of fluorescent layer to the filter layer while providing vertical separation therebetween. The attachment layer includes attachment regions that are separated from each other by lateral spacings such that excitation-side air gaps are formed between areas of the fluorescent layer and the filter layer that correspond to the lateral spacings. During display operation, excitation light received on a second side of the filter layer propagates through to the first side of the filter layer, and at least a portion of the excitation light that propagates from the second side of the filter layer travels through the excitation-side air gaps to excite the fluorescent stripes.
Implementations described herein generally relate to the use of display screens. More specifically, implementations generally relate to a large format transmissive and self-emissive display screen where the display screen includes multiple screens coupled together using transparent adhesive tape. Implementations described herein minimize internal reflections visible to screen viewers when an edge of the adhesive layer is scanned by a beam spot produced by a scanning beam in a scanning beam system having multiple screens held together by the adhesive layer to form a seamless viewing screen. In some implementations, the internal reflections are minimized by applying the adhesive layer between horizontal and vertical seams between each screen of the multiple screens wherein the adhesive layer has non-straight edges so as to minimize the total surface area of the edge of the adhesive layer that falls within the beam spot produced by the scanning beam.
G09F 9/302 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
Implementations described herein generally relate to scanning beam display systems and more specifically, to systems and methods for improved image alignment of such scanning beam display systems. The method comprises providing a display system comprising a display screen having a plurality of display screen region each with a corresponding light engine module having a servo laser beam and an excitation laser beam, scanning the servo laser beam of a light engine module in an outer scanning region outside of the light engine module's corresponding display screen region, detecting servo laser beam feedback light to measure an alignment error of the light engine module relative to the light engine module's corresponding display screen region, and adjusting alignment of the excitation laser beam based on the measured alignment error.
In one embodiment, the modular display includes aggregates of individual panel tiles arranged between two large plastic sheets. The footprint of the large plastic sheet sandwich becomes the dimension of the display screen. The tilettes are phosphor emission panels with a full complement of emittable pixels. By separating the tilettes from the final full dimension sheet, the tilettes can be manufactured in transportable sizes and the outer full dimension sheets can be rolled for easy transport to the final install location.
B32B 3/18 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by an internal layer formed of separate pieces of material
G02B 27/14 - Beam splitting or combining systems operating by reflection only
B32B 3/28 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer comprising a deformed thin sheet, e.g. corrugated, crumpled
B32B 3/02 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
42.
User presence detection and display of private content at a remote collaboration venue
A computer-implemented method for managing a collaboration environment comprises receiving sensor information from one or more sensors disposed at a first collaboration venue indicating that a first user is present within the first collaboration venue, receiving sensor information from one or more sensors disposed at a second collaboration venue indicating that a second user is present within the second collaboration venue, identifying the first user based on the sensor information received from the first collaboration venue, identifying the second user based on the sensor information received from the second collaboration venue, and executing one or more actions with respect to a third collaboration venue based on at least one of the information from one or more sensors disposed at the first collaboration venue and the sensor information from one or more sensors disposed at the second collaboration venue.
A 2-D scanning system uses a fast-rotating raster-polygon as a single scanning component to produce straight scan lines over a 2-D image surface. An approach angle of incident light beams to the raster-polygon is selected to minimize pin-cushion distortion of scan lines introduced by polygon scanning on the image surface, and a tilt angle of the rotational axis of the raster-polygon is selected to position said polygon-scanning distortion symmetrically on the image surface. In addition, scan optics are configured to generate a predetermined amount of barrel distortion of scan lines on the image surface to compensate for pin-cushion distortion introduced by polygon scanning.
B41J 2/47 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using the combination of scanning and modulation of light
H04N 3/23 - Distortion correction, e.g. for pincushion distortion correction, S-correction
G03G 15/04 - Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
G02B 26/12 - Scanning systems using multifaceted mirrors
H04N 9/31 - Projection devices for colour picture display
G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
H04N 1/10 - Scanning arrangements using flat picture-bearing surfaces
The present disclosure generally relates to a LPD system having a plurality of detectors for detecting light reflected from the back surface of the screen. The detectors are positioned to detect light from one or more portions of the screen that are not directly in front of the detector.
H04N 9/31 - Projection devices for colour picture display
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
An appliance device to display a workspace with an aspect ratio assigned to the workspace, regardless of the aspect ratio of a local display. The appliance device displays only a portion of the workspace in a viewport window at one time. The appliance device also displays a preview version of the entire workspace. The preview version comprises a user-interface tool which enables panning of the workspace in the viewport window. A presenter device makes a presentation while interacting with a workspace while viewer devices watch the presentation. A viewer device displays the workspace with the assigned aspect ratio and displays only portion of the workspace at one time. When the presenter device interacts with a location of the workspace, the presenter device operates in conjunction with a messaging infrastructure and the viewer devices to automatically cause each of the viewer devices to display the location of interaction in the workspace.
An appliance device to display a workspace with an aspect ratio assigned to the workspace, regardless of the aspect ratio of a local display. The appliance device displays only a portion of the workspace in a viewport window at one time. The appliance device also displays a preview version of the entire workspace. The preview version comprises a user-interface tool which enables panning of the workspace in the viewport window. A presenter device makes a presentation while interacting with a workspace while viewer devices watch the presentation. A viewer device displays the workspace with the assigned aspect ratio and displays only portion of the workspace at one time. When the presenter device interacts with a location of the workspace, the presenter device operates in conjunction with a messaging infrastructure and the viewer devices to automatically cause each of the viewer devices to display the location of interaction in the workspace.
A scanning beam display system includes an optical module, an image control module, and a display screen on which optical beams are scanned. The optical module includes a vertical adjuster placed in the optical paths of the beams to control and adjust positions of the optical beams along a generally vertical direction on the display screen, and a control unit configured to receive control instructions for the vertical adjuster and to control the vertical adjuster to be at one of a predetermined number of orientations to place the scanning optical beams at a corresponding distinct position on the display screen. The control unit is further configured to apply an adjustment offset to each orientation of the vertical adjuster such that each immediately vertically adjacent pair of beam footprints projected on the display screen resulting from the plurality of positions have a vertical overlap that is larger than a first threshold.
G02B 26/12 - Scanning systems using multifaceted mirrors
H04N 9/31 - Projection devices for colour picture display
G09G 1/14 - Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators using single beam tubes the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible
G09G 1/20 - Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators using multi-beam tubes
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
Techniques and optically excited light-emitting devices based on phosphors are provided to use phosphor materials which absorb excitation light to emit visible light and include a composite phosphor material including two or more different transition metal compounds that, under optical excitation of the excitation light, emit visible light at spectrally close but different spectral wavelengths or bands that spectrally overlap to produce a desired color.
The display of a portion of an image in successive rows of display tiles in a tiled display system are delayed, so that the top portion of a first display tile is illuminated immediately after the bottom portion of a second display tile is illuminated, where the second display tile is adjacent to and above the first display tile. This removes the appearance of a broken up image when the image moves across the display tiles in a direction somewhat parallel to the direction of raster scanning. In this way, a raster scanning tiled display system does not produce a stair-step effect even though the top and bottom portion of an image on a tile in the tiled display system is raster-scanned at different times.
Scanning beam display systems that scan one servo beam and an excitation beam onto a screen that emits visible light under excitation of the light of the excitation beam and control optical alignment of the excitation beam based on positioning of the servo beam on the screen via a feedback control.
Systems and techniques for scanning-beam display are provided to use local dimming on the optical energy of at least one optical beam to minimize the non-uniform image brightness across the screen. This local dimming during the beam scanning can be achieved by adjusting optical energy of at least one optical beam during the scanning based on (1) the location of the scanning optical beam and (2) the predetermined distortion information at the location.
H04N 9/31 - Projection devices for colour picture display
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
G02B 26/12 - Scanning systems using multifaceted mirrors
Knowledge automation techniques may include selecting a knowledge element from a knowledge corpus of an enterprise for extraction of n-grams, and deriving a term vector comprising terms in the knowledge element. Based at least on a frequency of occurrence of each term in the knowledge element, key terms are identified in the term vector. Thereafter, the identified key terms are used to extract one or more n-grams from the knowledge element. Each of the extracted n-grams is scored as a function of at least a frequency of occurrence of each of the n-grams across the knowledge corpus of the enterprise, and based on the scoring, one or more of the n-grams is added to a collective term and phrase index.
Techniques and display systems that provide a tile display screen made up by adjacent constituent screens with a reduced level of visibility of a gap between two adjacent constituent screens.
A 2-D scanning system uses a fast-rotating raster-polygon as a single scanning component to produce straight scan lines over a 2-D image surface. An approach angle of incident light beams to the raster-polygon is selected to minimize pin-cushion distortion of scan lines introduced by polygon scanning on the image surface, and a tilt angle of the rotational axis of the raster-polygon is selected to position said polygon-scanning distortion symmetrically on the image surface. In addition, scan optics are configured to generate a predetermined amount of barrel distortion of scan lines on the image surface to compensate for pin-cushion distortion introduced by polygon scanning.
B41J 2/47 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using the combination of scanning and modulation of light
H04N 3/23 - Distortion correction, e.g. for pincushion distortion correction, S-correction
G03G 15/04 - Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
G02B 26/12 - Scanning systems using multifaceted mirrors
H04N 9/31 - Projection devices for colour picture display
G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
A rollable display screen for use in electronic display systems includes a rollable screen that is mechanically coupled to a roller mechanism and has a plurality of pixel elements disposed thereon. The roller mechanism is configured as a stowing mechanism for the rollable screen, and may be further configured to deploy the rollable screen as a substantially planar viewing surface. The rollable display screen can be advantageously used for a durable and easily transported electronic display device since the rollable display screen is light-weight, durable, and compact.
Implementations described herein generally relate to scanning beam display systems and more specifically, to systems and methods for improved image alignment of such scanning beam display systems. The method comprises providing a display system comprising a display screen having a plurality of display screen region each with a corresponding light engine module having a servo laser beam and an excitation laser beam, scanning the servo laser beam of a light engine module in an outer scanning region outside of the light engine module's corresponding display screen region, detecting servo laser beam feedback light to measure an alignment error of the light engine module relative to the light engine module's corresponding display screen region, and adjusting alignment of the excitation laser beam based on the measured alignment error.
Scanning beam systems based on a two-dimensional polygon scanner with different reflective polygon facets tilted at different tilt facet angles to use rotations of the polygon scanner to scan one or more optical beams both horizontally and vertically on a surface which can be a display screen or a printing surface.
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
Scanning beam display systems that scan one servo beam and an excitation beam onto a screen that emits visible light under excitation of the light of the excitation beam and control optical alignment of the excitation beam based on positioning of the servo beam on the screen via a feedback control.
Embodiments of fluorescent display screens having an intermediate layer between a light-emitting fluorescent layer and an excitation filter layer are disclosed. The intermediate layer includes (1) a low-index layer disposed between the light-emitting fluorescent layer and the excitation filter layer and (2) an index bridging layer disposed between the low-index layer and the excitation filter layer. The insertion of the low-index layer and the index bridging layer according to the above configuration reduces the sensitivity of the excitation coupling to the non-uniformities in the excitation filter layer and variability in the output frequency of the excitation source, leading to improved uniformity of display intensity without significant compromise in the excitation coupling efficiency. A index bridging region made of a hard coat also provides abrasion resistance and provides structure rigidity to the adjacent excitation filter layer.
An electronic display device provides closed-loop verification that specific content has been displayed by the display device. When desired digital image content is rendered as an image or video by the electronic display device, a confirmation signal is generated by one or more components of the display device to verify that the image content has been successfully displayed. The confirmation signal may include performance measurements of the one or more components of the display device and/or a signature output that is associated with a signature code embedded in the image content. The signature output uniquely identifies the digital image content.
G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging
G03B 21/00 - Projectors or projection-type viewersAccessories therefor
G09F 19/18 - Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds
H04N 9/31 - Projection devices for colour picture display
H04N 21/24 - Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth or upstream requests
H04N 21/414 - Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
H04N 21/44 - Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
H04N 21/442 - Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed or the storage space available from the internal hard disk
H04N 21/4425 - Monitoring of client processing errors or hardware failure
H04N 21/658 - Transmission by the client directed to the server
H04N 21/8352 - Generation of protective data, e.g. certificates involving content or source identification data, e.g. UMID [Unique Material Identifier]
Techniques and display systems that provide display systems suitable for various display applications, including display systems that provide a controlled climate in an enclosure of the system to protect the display components and display systems that produce high-contrast images for outdoor displays, large-format displays and other display applications.
In one embodiment, the modular display includes aggregates of individual panel tiles arranged between two large plastic sheets. The footprint of the large plastic sheet sandwich becomes the dimension of the display screen. The tilettes are phosphor emission panels with a full complement of emittable pixels. By separating the tilettes from the final full dimension sheet, the tilettes can be manufactured in transportable sizes and the outer full dimension sheets can be rolled for easy transport to the final install location.
B32B 3/18 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by an internal layer formed of separate pieces of material
G02B 27/14 - Beam splitting or combining systems operating by reflection only
B32B 3/28 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer comprising a deformed thin sheet, e.g. corrugated, crumpled
B32B 3/02 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
Techniques and display devices that provide a built-in Moire reduction structure in a display screen are disclosed. The built-in Moire reduction structure is configured to suppress spatial frequencies that are associated with the sub-pixel level periodicities in the light emitted by the colored sub-pixels of the display screen, and hence, reduce the Moire patterns that might otherwise be produced when images presented on the display screen are captured by a digital image capturing device having a periodic light-sensing structure. The built-in Moire reduction structure is a blur layer placed on the viewer side of the screen and separated by a spacer layer from the pixel layer of the display screen. The blurring power of the blur layer is controlled to substantially preserve the pixel-level resolution of the display screen.
A flexure assembly includes two metallic flexure arrays molded into a thermoplastic support base. The two flexure arrays are positioned in parallel in the thermoplastic support base to allow rotational movement about one axis while providing high stiffness with respect to off-axis movement. Flexible supports in the two flexure arrays may be interleaved to form a cross flexure configuration. Off-axis stiffness of the flexure assembly prevents harmonic resonance in directions that cannot be compensated for in a single-axis actuator.
H01R 43/00 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
H02K 23/04 - DC commutator motors or generators having mechanical commutatorUniversal AC/DC commutator motors characterised by arrangement for exciting having permanent magnet excitation
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
65.
Composite and other phosphor materials for emitting visible light and applications in generation of visible light including light-emitting screens
Techniques and optically excited light-emitting devices based on phosphors are provided to use phosphor materials which absorb excitation light to emit visible light and include a composite phosphor material including two or more different transition metal compounds that, under optical excitation of the excitation light, emit visible light at spectrally close but different spectral wavelengths or bands that spectrally overlap to produce a desired color.
G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
H04N 9/31 - Projection devices for colour picture display
G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source
A 2-D scanning system uses a fast-rotating raster-polygon as a single scanning component to produce straight scan lines over a 2-D image surface. An approach angle of incident light beams to the raster-polygon is selected to minimize pin-cushion distortion of scan lines introduced by polygon scanning on the image surface, and a tilt angle of the rotational axis of the raster-polygon is selected to position said polygon-scanning distortion symmetrically on the image surface. In addition, scan optics are configured to generate a predetermined amount of barrel distortion of scan lines on the image surface to compensate for pin-cushion distortion introduced by polygon scanning.
B41J 15/14 - Supporting, feeding, or guiding devicesMountings for web rolls or spindles characterised by being applied to printers having transversely-moving carriages and detached from the carriage
G03G 15/04 - Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
Implementations of actuators and capacitor-based position sensors for monitoring and controlling positioning of the actuators are provided, including implementations of actuators that use flexures to provide support to actuators and pivoting mechanisms to the actuators. Such actuators can be electromagnetically activated actuators that include a magnet stator and a coil rotor mounted on a flexure. A positioning sensor, such as a capacitor sensor, is provided to measure and monitor positioning of the actuator and is coupled to a feedback circuit which uses the measured positioning of the actuator to control the actuator.
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
A rollable display screen for use in electronic display systems includes a rollable screen that is mechanically coupled to a roller mechanism and has a plurality of pixel elements disposed thereon. The roller mechanism is configured as a stowing mechanism for the rollable screen, and may be further configured to deploy the rollable screen as a substantially planar viewing surface. The rollable display screen can be advantageously used for a durable and easily transported electronic display device since the rollable display screen is light-weight, durable, and compact.
Implementations of actuators that use flexures to provide support to actuators and pivoting mechanisms to the actuators. Such actuators can be electromagnetically activated actuators that include a magnet stator and a coil rotor mounted on a flexure. A positioning sensor, such as a capacitor sensor, is provided to measure and monitor positioning of the actuator and is coupled to a feedback circuit which uses the measured positioning of the actuator to control the actuator.
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
70.
Dithered power matching of laser light sources in a display device
A technique for managing image quality in a laser-based imaging system is provided. Laser light sources are organized into two or more groups, and optical output power of a light source group containing an under-performing laser is matched to that of the under-performing laser, while the optical output power of the light sources in the remaining groups is not. The output of the laser light sources in each group is interleaved with the output of the laser light sources in the other groups, so that perceptual uniformity of a displayed image is maintained when the display is viewed from an appropriate viewing distance.
G06F 3/038 - Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
G09G 5/00 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
71.
Fine brightness control in panels or screens with pixels
Techniques and devices use panels or screens with pixels for display or illumination applications to achieve dithered pixel brightness beyond pixel brightness levels set by a digital to analog conversion (DAC) circuit module with a preset DAC resolution between two adjacent DAC levels. In one implementation, when a pixel is to be dictated by a digital pixel signal to operate within an unstable brightness region, a control mechanism is provided to control the DAC circuit module to operate the pixel in the block at a DAC level below the unstable brightness region or at a different DAC level above the respective unstable brightness region, to achieve a perceived brightness level within the respective unstable brightness region.
A laser-based display device includes a plurality of ultraviolet lasers configured to excite a phosphor-containing display screen in order to produce visible light. The laser-based display device also includes a reference laser used for calibration operations. A control system within the laser-based display device causes the reference laser beam to scan across one or more calibration features, and adjusts optical components of the laser-based display device, including activation timing of the ultraviolet lasers, based on feedback patterns generated by the calibration features, to compensate for drift effects. The calibration features may be disposed off-screen or on-screen.
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source
G02B 27/32 - Fiducial marks or measuring scales within the optical system
Systems and techniques for scanning-beam display are provided to use local dimming on the optical energy of at least one optical beam to minimize the non-uniform image brightness across the screen. This local dimming during the beam scanning can be achieved by adjusting optical energy of at least one optical beam during the scanning based on (1) the location of the scanning optical beam and (2) the predetermined distortion information at the location.
G02B 26/12 - Scanning systems using multifaceted mirrors
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
H04N 9/31 - Projection devices for colour picture display
G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
74.
Power calibration of multiple light sources in a display screen
A display device with multiple light sources includes a detector that dynamically measures output intensities of the light sources as the light sources are producing light to cause an image to be formed on a display screen. A controller for the display device compares the measured output intensities with desired output intensities determined from factory-calibrated correlation values and adjusts the inputs to the light sources to compensate for drift and other similar effects, so that brightness uniformity among the multiple light sources can be achieved.
G09G 5/02 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
75.
Dynamic power and brightness control for a display screen
An image is displayed on an electronic display device at a reduced power level. Power used by the display device is maintained below a predetermined maximum power level by uniformly scaling the initial optical intensity of an image to a lower optical intensity whenever displaying the image at the initial optical intensity would result in power consumption of the display device exceeding the predetermined maximum power level.
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
76.
Power calibration of multiple light sources in a display screen
A display device with multiple light sources includes a first detector for detecting a brightness of one or more different portions of the image formed on the display device, a second detector that measures output intensities of the light sources, and a controller that records correlation values that correlate input power settings of the light sources with the detected brightness and the measured output intensities. During operation of the display device, the controller applies the correlation values to determine the proper input power settings of the light sources so that brightness uniformity among the multiple light sources can be achieved.
G09G 5/00 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
H04N 9/31 - Projection devices for colour picture display
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source
Embodiments of the present invention generally provide an interconnect between a data signal source and a display device. The interconnect may be used to transmit data signals, command data, and power from the data signal source to the display device. The interconnect also may be used to transmit feedback data from the display device to the data signal source.
G06F 3/00 - Input arrangements for transferring data to be processed into a form capable of being handled by the computerOutput arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
G06F 13/42 - Bus transfer protocol, e.g. handshakeSynchronisation
78.
System for removing a display unit from a multi panel display
A lift system removes a display unit or components thereof from a tiled display wall in a way that minimizes the risk of damaging the removed display unit and other display units in the tiled display wall. A lifting structure is configured to selectively lift one or more display units away from the desired display unit when the lifting structure is raised by a vertical motion actuator. The lifting structure is further configured to be free to rotate slightly about a vertical axis when lifting the display units, so that the lifted display units are not constrained to purely vertical translation when lifted away from the desired display unit.
B66C 3/00 - Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materialsGrabs
79.
Multilayered fluorescent screens for scanning beam display systems
Fluorescent screens and display systems and devices based on such screens using at least one excitation optical beam to excite one or more fluorescent materials on a screen which emit light to form images. The fluorescent materials may include phosphor materials and non-phosphor materials such as quantum dots.
A scanning optical device that scans a light beam through a relay optical system, the relay optical system comprising: front group lenses arranged at a light source side; rear group lenses arranged at a side of a surface to be scanned; and first and second mirrors arranged between the front group lenses and the rear group lenses and supported by a common supporting member, wherein a normal vector of a mirror surface of the first mirror makes an angle (180−ω) with an incident optical axis from the front group lenses, a normal vector of the second mirror makes an angle α (α≠180×m) with the normal vector of the first mirror, and the supporting member includes a mechanism being linearly movable in a direction which makes an angle (ω−α+90) with the normal vector of the first mirror.
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
A scanning optical device includes at least one light source unit for emitting a light beam, a first deflector for deflecting the emitted light beam in an auxiliary scanning direction, a condensing optical system for generating an intermediate image of the light beam deflected by the first deflector, a collecting optical system for condensing a light beam diverged from the generated intermediate image, a second deflector for deflecting the condensed light beam in a main-scanning direction, and a scanning optical system for scanning the surface to be scanned with the light beam deflected by the second deflector. The condensing optical system has an f-θ characteristic, the collecting optical system has an f-sin θ characteristic, and the scanning optical system has an f-sin θ characteristic.
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
82.
Multilayered fluorescent screens for scanning beam display systems
Fluorescent screens and display systems and devices based on such screens using at least one excitation optical beam to excite one or more fluorescent materials on a screen which emit light to form images. The fluorescent materials may include phosphor materials and non-phosphor materials such as quantum dots.
Fluorescent screens and display systems and devices based on such screens using at least one excitation optical beam to excite one or more fluorescent materials on a screen which emit light to form images. The fluorescent materials may include phosphor materials and non-phosphor materials such as quantum dots. A screen may include a multi-layer dichroic layer.
G09G 3/12 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using controlled light sources using electroluminescent elements
84.
Servo-assisted scanning beam display systems using fluorescent screens
Methods and systems for improving imaging quality and power efficiency of scanning beam display systems using fluorescent screens are disclosed. In various embodiments, beam shaping mechanisms for maximizing overlap between the beam cross-section and the florescent element corresponding to each color sub-pixel of the screen, as well as pulse width and timing adjustments, are introduced to reduce imaging noise and improve power efficiency of the display system.
G09G 3/22 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources
09 - Scientific and electric apparatus and instruments
Goods & Services
Apparatus and instruments for displaying images; imaging systems: video and computer systems comprising laser engines and phosphor screens, for use in variable-format visual presentations of images, text and video; video projectors; video screens; parts and fittings for use with the aforesaid goods.
A two-dimensional scanning projector causing a light beam to scan in a first direction and a second direction orthogonal to the first direction, comprising: a first deflector which deflects the light beam in the first direction; and a scanning optical system arranged between the first deflector and a scanned surface, wherein the first deflector is arranged such that a rotation axis of the first deflector is inclined, in a plane including an optical axis of the scanning optical system and the second direction, by a first angle with respect to the second direction, and the light beam is incident on the first deflector such that, in the plane including the optical axis and the second direction, a chief ray of the light beam entering a center of a projected image is obliquely incident on the first deflector to form a second angle with respect to the optical axis.
Embodiments of the present invention generally provide an apparatus and method for forming a display screen assembly that comprises multiple panel assemblies which are positioned to form a tiled display device that has improved visual characteristics, is easy to assemble and has a reduced manufacturing cost. In general, each panel assembly is formed so that when it is positioned in a display screen assembly the grid pattern, formed by the gap between the illuminated regions in adjacent panel assemblies, can be minimized. In one embodiment, the unwanted visual effect of the grid pattern is mitigated by minimizing and controlling the space, or gaps, formed between the illuminated area in adjacent panel assemblies. Embodiments of the present invention may also provide an apparatus and method for forming a single panel assembly that is used to display an image.
A multibeam scanning device, comprising: a plurality of first optical systems, each of the plurality of optical systems including a light source unit configured to emit a non-collimated light beam, and an optical element having a predetermined power and having an optical effect on the laser beam; a second optical system arranged on a downstream side of the plurality of first optical systems, including a first deflector on which light beams emitted by the plurality of first optical systems are incident, the first deflector being to deflect the laser beams, and a common optical system configured to change degree of divergence of each of the plurality of light beams; and an optical path shifting system configured to translate an incident optical path of the light beam which is emitted by the light source and incident on the optical element, wherein all the light beams incident on the first deflector are incident on the first deflector at substantially the same position, and wherein the optical elements are arranged such that optical axes of the optical elements intersect at a position spaced from the optical element by a distance equal to a focal length of the optical element.
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
89.
Beam scanning systems based on two-dimensional polygon scanner
Scanning beam systems based on a two-dimensional polygon scanner with different reflective polygon facets tilted at different tilt facet angles to use rotations of the polygon scanner to scan one or more optical beams both horizontally and vertically on a surface which can be a display screen or a printing surface.
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
90.
Composite screens formed by tiled light-emitting screens
Techniques and display devices that provide a composite display screen made up by placing multiple smaller constituent screens based on a light-emitting screen technology to minimize the gap between two adjacent constituent screens.
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
92.
Servo feedback control based on designated scanning servo beam in scanning beam display systems with light-emitting screens
Scanning beam display systems that scan one servo beam and an excitation beam onto a screen that emits visible light under excitation of the light of the excitation beam and control optical alignment of the excitation beam based on positioning of the servo beam on the screen via a feedback control.
Scanning beam systems based on a two-dimensional polygon scanner with different reflective polygon facets tilted at different tilt facet angles to use rotations of the polygon scanner to scan optical beams both horizontally and vertically on a surface which can be a display screen or a printing surface.
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
09 - Scientific and electric apparatus and instruments
Goods & Services
imaging systems, namely, video and computer systems comprising laser engines and phosphor screens, for use in large-format visual presentations of images, text and video; video projectors; video screens
95.
Laser displays using phosphor screens emitting visible colored light
Laser display systems using at least one scanning laser beam to excite one or more fluorescent materials on a screen which emit light to form images. The fluorescent materials may include phosphor materials.
G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals
G09G 3/30 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels
Scanning beam display systems that scan at least one invisible servo beam and an excitation beam onto a screen that emits visible light under excitation of the light of the excitation beam and control optical alignment of the excitation beam based on positioning of the servo beam on the screen via a feedback control.
Fluorescent screens and display systems and devices based on such screens using at least one excitation optical beam to excite one or more fluorescent materials on a screen which emit light to form images. The fluorescent materials may include phosphor materials and non-phosphor materials such as quantum dots. A screen may include a multi-layer dichroic layer.
G09G 3/12 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using controlled light sources using electroluminescent elements
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
99.
Delivering and displaying advertisement or other application data to display systems
Display devices and systems including television sets, and systems, apparatus and methods for delivering information and providing services through display devices and systems. The display used in the described systems and methods is capable of receiving one or more TV programming channels and an independent designated application channel and having at least a first display window and a second display window separated from each other without spatial overlap on the screen. The information sent over the designated application channel to the display is displayed on the first display window while simultaneously displaying one of the TV programming channels on the second display window. A viewer control mechanism is provided in the display to allow the viewer to switch the information received from the designated application channel from the first display window to the second display window and switch back at the viewer's choice.
H04N 5/445 - Receiver circuitry for displaying additional information
H04N 7/173 - Analogue secrecy systemsAnalogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
H04N 21/258 - Client or end-user data management, e.g. managing client capabilities, user preferences or demographics or processing of multiple end-users preferences to derive collaborative data
H04N 21/262 - Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission or generating play-lists
H04N 21/2668 - Creating a channel for a dedicated end-user group, e.g. by inserting targeted commercials into a video stream based on end-user profiles
H04N 21/433 - Content storage operation, e.g. storage operation in response to a pause request or caching operations
H04N 21/443 - OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
H04N 21/478 - Supplemental services, e.g. displaying phone caller identification or shopping application
Various phosphor compositions and organic compounds can be used in fluorescent layers for scanning beam displays. In general, one aspect of the subject matter described in this specification can be embodied in method of adjusting an emission spectrum of a phosphor material used in a display system that includes a fluorescent layer that absorbs an excitation light at a single wavelength and emits visible light. The method includes generating a binder mixture by combining one or more non-phosphor organic compounds with a binder material, wherein the binder mixture substantially transmits the excitation light and substantially absorbs a portion of the emission spectrum of the phosphor material. The method also includes combining the binder mixture with the phosphor material.
