Liquid crystal optical modulation element, and color filter...

Details Liquid crystal optical modulation element, and color filter... Liquid crystal optical modulation element, and color filter...

2005-05-17

2005-05-17

Dudek, James A. (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S113000

Reexamination Certificate

active

06894743

ABSTRACT:
An optical modulation element includes a liquid crystal layer, white light source, and at least one flat mirror. The liquid crystal layer has a helix pitch and is held between a pair of transparent substrates having opposing transparent electrodes. The white light source sends white light onto a surface of one of the transparent substrates of the liquid crystal layer in an oblique direction. The flat mirror is arranged outside the other one of the transparent substrates to reflect the incident light transmitted through the liquid crystal layer toward the light source.

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patent: 5841496 (1998-11-01), Itoh et al.
patent: 6091469 (2000-07-01), Naito
patent: 6-3706 (1994-01-01), None
patent: 7-120792 (1995-05-01), None
patent: 7-159813 (1995-06-01), None
patent: 7-209662 (1995-08-01), None

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