Liquid crystal cells – elements and systems – Liquid crystal system – Stereoscopic
Patent
1997-12-12
1999-01-26
Sikes, William L.
Liquid crystal cells, elements and systems
Liquid crystal system
Stereoscopic
349 86, 349202, 349 92, 359 15, 359 23, G02F 11335, G02F 11333, G02F 113
Patent
active
058643753
ABSTRACT:
The liquid crystal display device according to this invention realizes three-dimensional picture images without using lenticular lenses etc. In addition, this liquid crystal display device has a transparent picture screen so that remote display picture images or three-dimensional picture images of high luminance are seen multiplexed with the background. The display device is constructed by arranging picture elements in which volume-phase type holograms are formed by a periodical construction of liquid crystals and polymers. Diffraction light from first picture element groups which are distributed uniformly reaches a left eye of an observer while diffraction light from second picture element groups which are distributed uniformly reaches a right eye of an observer. The condition of the picture elements are switched to diffract irradiated light or to transmit the light, thus a desired picture image comprising a dot matrix can be displayed. The first picture element groups display parallax picture for the left eye, and the second picture element groups display parallax picture for the right eye.
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"A liquid crystal/polymer optical device formed by holography for reflective color display applications. "K. Tanaka, K. Kato, S. Tsuru, S. Sakai. PDLC--2, pp. 109-111. NTT, Interdisciplinary Laboratories, Tokyo, Japan, Aug. 1996.
Asakawa Shiro
Okuda Eiichiro
Taketomi Yoshinao
Matsushita Electric - Industrial Co., Ltd.
Nguyen Tiep H.
Sikes William L.
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