Stacked parallax-free liquid crystal display cell

Details Stacked parallax-free liquid crystal display cell Stacked parallax-free liquid crystal display cell

1996-05-10

1998-09-01

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Interconnection of plural cells in parallel

349 74, 349 78, 349155, G02F 1133, G02F 11347, G02F 11339

Patent

active

058017968

ABSTRACT:
This invention relates to a novel cell construction which enables stacked cells to be formed in which the intermediate substrate is so thin that little or no parallax occurs between the images formed in the two or more cells. In addition, the thickness of the intermediate substrate is such that the field drop across is is low (about 10%) compared to that across the liquid crystal layers, and the stacked cell can be addressed as a single cell. This greatly simplifies and reduces the cost of the interconnections and drive electronics. The avoidance of the need for transparent electrodes on both surfaces of the intermediate substrate also improves transmittance (and reflectivity) of the device. Of course, should it be required, the intermediate substrate can be patterned with transparent electrodes in the conventional way. The advantage of substantially zero parallax would remain.

REFERENCES:
patent: 3992082 (1976-11-01), Katz
patent: 4054368 (1977-10-01), Krueger et al.
patent: 4886343 (1989-12-01), Johnson
patent: 5113272 (1992-05-01), Reamey
patent: 5194973 (1993-03-01), Isogai et al.
patent: 5251048 (1993-10-01), Doane et al.

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