Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Optical excitation
Patent
1997-04-10
1998-08-25
Gross, Anita Pellman
Liquid crystal cells, elements and systems
Particular excitation of liquid crystal
Optical excitation
349110, 349 27, 349 7, G02F 1135, G02F 11333
Patent
active
057988064
ABSTRACT:
A spatial light modulator (SLM) providing effects light blocking of even strong incident light without reducing the photoelectric conversion efficiency, and a projector using said SLM, are disclosed. Said projector uses an SLM comprising a readout side glass substrate comprising a readout side transparent electrode; a light modulation layer for modulating incident light according to an applied voltage; a reflective electrode comprising plural electrode elements for applying a voltage to the light modulation layer, and reflecting the light passed by the readout side glass substrate, the readout side transparent electrode, and light modulation layer; a light blocking layer having plural holes; a drive electrode comprising plural electrode elements electrically connected through the holes in the light blocking layer to a corresponding electrode element of the reflective electrode; and voltage applying means for applying a voltage corresponding to the brightness of each pixel in the input image to each electrode element of the drive electrode.
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Akiyama Koji
Komori Kazunori
Kuratomi Yasunori
Mizuguchi Shinichi
Nishiyama Kazuhiro
Gross Anita Pellman
Matsushita Electric - Industrial Co., Ltd.
Nguyen Tiep H.
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