Liquid crystal panel capable of indicating black without depende

Details Liquid crystal panel capable of indicating black without depende Liquid crystal panel capable of indicating black without depende

1991-08-19

1993-07-27

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 73, 359 93, G02F 113

Patent

active

052315223

ABSTRACT:
A liquid crystal panel has a first layer of liquid crystal sandwiched between an upper substrate and a lower substrate and oriented in a first direction included within a plane substantially parallel to at least one of the upper substrate and the lower substrate. Liquid crystal molecules of the first liquid crystal in proximity of the upper substrate has a tilt angle in a reversed direction to that of liquid crystal molecules of the first liquid crystal in proximity of the lower substrate. A second layer of parallel-oriented liquid crystal is located in parallel to the first liquid crystal layer and has an orientation direction which is included within a plane of the second layer and is orthogonal to the first direction.

REFERENCES:
patent: 4466702 (1984-08-01), Wiener-Avnear et al.
patent: 4566758 (1986-01-01), Bos
patent: 4583825 (1986-04-01), Buzak
patent: 4844569 (1989-07-01), Wada et al.
patent: 4941737 (1990-07-01), Kimura
patent: 5090794 (1992-02-01), Hatano et al.

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