Method of producing image display device and image projector...

Details Method of producing image display device and image projector... Method of producing image display device and image projector...

2006-10-31

2006-10-31

Perkey, W. B. (Department: 2851)

Optics: image projectors

Miscellaneous

C353S084000, C349S005000, C349S064000, C349S095000

Reexamination Certificate

active

07128426

ABSTRACT:
A method of producing an image display device used for an LCD projector by providing a periodic structure of pixels arranged in a matrix and a substrate supporting the pixels, modulating light entering from an entrance surface in pixel units, and emitting the same from an exit surface. A phase shift structure for randomly changing the phase of the light is formed on a surface of the substrate. The phase shift structure has a relief structure formed, for example, by etching the surface of the substrate through which light passes to random depths. Therefore, occurrence of high-order diffracted light caused by the periodic structure of very fine pixels is prevented, and accordingly the amount of 0th order light inherently required is increased.

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