High speed signal and power supply bussing for liquid crystal di

Details High speed signal and power supply bussing for liquid crystal di High speed signal and power supply bussing for liquid crystal di

1990-01-29

1991-12-31

Hille, Rolf

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

340784, 359 80, 359 87, G02F 113

Patent

active

050766678

ABSTRACT:
A Liquid Crystal Display device has first and second transparent substrates with a liquid crystal material sealed therebetween; a centrally disposed optically active display region having a matrix of pixels and a first and second scanner, and a transparent common electrode formed on the inner surface of the first and second transparent substrates, respectively; and a power supply and data signal distribution region surrounding at least a portion of the optically active display region and near the first and second scanners. The power supply and data signal distribution region comprises (a) a groove, and (b) a plurality of parallel conductors, formed on the inner surface of the second and first transparent substrates, respectively, which conductors include a height extending into the groove to reduce each conductor's resistance. Conductor capacitance is reduced by (a) eliminating the transparent common electrode from the groove, and/or (b) providing an inert dielectric material or gas in the distribution region with a lower dielectric constant than the liquid crystal material.

REFERENCES:
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patent: 4597160 (1986-07-01), Ipri
patent: 4682858 (1987-07-01), Kanbe et al.
patent: 4776673 (1988-10-01), Aoki et al.
patent: 4807973 (1989-02-01), Kawasaki
patent: 4838654 (1989-06-01), Hamaguchi et al.
Kamikawa, "Electronic Displays", IEEE Press, H. I. Refioglu, Editor, 1983, pp. 70-71.
Yamazaki et al., "Electronic Displays", IEEE Press, H. I. Refioglu, Editor, 1983, pp. 129-130.

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