Trexler, Bushnell, Giangiorgi, Blackstone & Marr, Ltd.
Method of producing image display device and image projector apparatus
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.
Sony Corporation
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Shinya
Watanabe