Picture display apparatus having multiple diffusing filter surfa

Optical: systems and elements – Diffraction – From grating

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Details

359599, 359619, 359622, 345 32, G02B 518, G09G 300

Patent

active

058726543

ABSTRACT:
A picture display apparatus is provided with a display device having pixels disposed in a mosaic pattern. A plurality of optical filter surfaces are respectively placed between the display device and a viewer so that both surfaces can be overlapped with each other. Each pixel in the display device is diffracted or refracted by both surfaces to become a plurality of pixels. For each optical filter surface, an element for diffusion such as a diffraction grating and an element for refraction such as a prism can be utilized for the diffraction and refraction.

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