Abstract

The present invention relates to a data security screen and to a production method for the same, comprising: a first film layer; and a blind layer in which blocking partition walls for blocking incident images are repeatedly placed either in parallel or in a predetermined grid arrangement with gaps at a predetermined angle. In the present invention, the shielding partition walls are constituted by repeatedly printing or transferring a light-absorbing coloured ink onto one surface or both surfaces of the first film layer. The present invention provides a data security screen doubling as an electromagnetic-wave blocking screen (referred to hereinbelow as a "security screen") which is fitted to the screens of image devices such as computer monitors, cash dispensers, navigation devices, mobile phones and PDAs or is fitted to the glass of buildings or the like, thereby making it impossible for the image being output on the screen to be viewed by any third party positioned on the left, right, above or below who is not the user of the image device, and which makes the screen image clearer by preventing the phenomenon of screen blurring and the phenomenon of glare which occur, for example, when external light shines on devices and on glass or the like. The present invention also provides a production method for the security screen.

IPC Classes  ?

• H04N 5/65 - Holding-devices for protective discs or for picture masks