Liquid crystal apparatus

Details Liquid crystal apparatus Liquid crystal apparatus

1994-01-21

1994-10-04

Jackson, Jerome

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 89, G02F 113

Patent

active

053531370

ABSTRACT:
A liquid crystal apparatus includes: a liquid crystal device comprising a group of first electrodes, a group of second electrodes intersecting the first electrodes, and a ferroelectric liquid crystal disposed between the group of first electrodes and the group of second electrodes so as to form a picture area comprising a pixel at each intersection of the first and second electrodes; and drive means for applying a scanning selection signal to the first electrodes N electrodes apart (N: a positive integer), and applying data signals through the second electrodes to all or a prescribed part of the pixels on a particular first electrode under application of the scanning selection signal so as to first form a dark state at said all or a prescribed part of the pixels on the particular first electrode and then form a bright state at a selected pixel among said all or a prescribed part of the pixels on the particular first electrode.

REFERENCES:
patent: 4697887 (1987-10-01), Okada et al.
patent: 4701026 (1987-10-01), Yazaki et al.
patent: 4770502 (1988-09-01), Kitazima
patent: 4824212 (1989-04-01), Taniguchi
patent: 4901066 (1990-02-01), Kobayashi et al.
patent: 4927243 (1990-05-01), Taniguchi et al.
patent: 5124820 (1992-06-01), Tsuboyama et al.
Pat. Abs. J. vol. 11, No. 129 (Apr. 1987) 61-272724.

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