Image display device and image projector apparatus

Details Image display device and image projector apparatus Image display device and image projector apparatus

2005-10-18

2005-10-18

Nguyen, Judy (Department: 2851)

Optics: image projectors

Miscellaneous

C353S084000, C353S030000, C349S005000, C349S064000, C349S095000

Reexamination Certificate

active

06955436

ABSTRACT:
An image display device used for an LCD projector provided with 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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