Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1997-08-07
2000-09-26
Parker, Kenneth
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349 39, 349 42, 349143, G02F 11343, G02F 1136
Patent
active
061249157
ABSTRACT:
A liquid crystal display device has a plurality of pixel elements, the optical transmissivity of which is varied by suitable electrical signals. The liquid crystal display device has electrodes which apply electric fields to a liquid crystal layer, the electric fields having components in a direction generally parallel to the liquid crystal layer. Each pixel element has at least one pixel electrode which extends in a common direction as a signal electrode and common electrodes which extend over several pixel elements. The common electrodes may be on the same side of the liquid crystal layer as the pixel and signal electrodes, or they may be on opposite sides. Each pixel may have two pixel electrodes with the signal electrode disposed therebetween, and there are then a pair of common electrodes with the pixel electrodes therebetween. The common electrodes may be common to adjacent pixel elements. The pixel electrodes and the common electrodes may be separated by an insulating film.
REFERENCES:
patent: 4345249 (1982-08-01), Togashi
patent: 5365079 (1994-11-01), Kodaiva et al.
WO 91/10936 (Fraunhofer-Gesellschaft.
Abe Hidetoshi
Kawachi Genshiro
Kondo Katsumi
Ohta Masuyuki
Ohwada Jun-ichi
Hitachi , Ltd.
Parker Kenneth
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