Trexler, Bushnell, Giangiorgi, Blackstone & Marr
Image display device and image projector apparatus
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.
Sony Corporation
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G03B G02F G02B G02B G02B H04N G02B
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Shinya
Watanabe