Method for driving a color liquid crystal display

Details Method for driving a color liquid crystal display Method for driving a color liquid crystal display

1996-12-10

1998-06-30

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349188, G02F 11335, G02F 113

Patent

active

057741972

ABSTRACT:
The present invention is directed to the prevention of reversal and deterioration of a screen at right and left viewing angles and upper and lower viewing angles in an OCB-mode liquid-crystal display.
It is possible to prevent deterioration of a screen by obtaining the correction by phase compensation film!/wavelength (.lambda.) at a lower-side driving voltage for each color of R, G, and B and thereby, preventing an optical rotation of liquid crystal on B wavelength. Specifically, B wavelength is set to R(V.sub.1)/.lambda..ltoreq.0.85. By adjusting a cell gap of each color, display characteristics of a screen at right and left viewing angles are improved.

REFERENCES:
patent: 4422732 (1983-12-01), Ditzik
patent: 5658505 (1997-08-01), Shimizu et al.

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