Computer graphics processing and selective visual display system – Display driving control circuitry – Physically integral with display elements
Patent
1995-06-05
1997-08-12
Hjerpe, Richard
Computer graphics processing and selective visual display system
Display driving control circuitry
Physically integral with display elements
345 87, 345176, G09G 500
Patent
active
056570562
ABSTRACT:
A liquid crystal display device provides two substrates, a display medium, a plurality of light waveguides, a plurality of signal wires, and a plurality of light switching elements, being provided at crosspoints between said plurality of light waveguides and said plurality of signal wires. On the clad layer of the light waveguide, the p-type and the i-type of the a-Si:H are laminated. On one end of the top of the i-type, the n-type is overlapped with part of the signal wire. On the other end of the top of the i-type, the n-type is overlapped with the drain electrode. On the drain electrode, a pixel electrode is formed. That is, the light switching element has an element structure in which nipin type back-to-back diodes composed of two pin type diodes series-connected in reverse are ranged in parallel toward light transmission. Hence, the same light signal is transmitted to these two back-to-back diodes. This structure of light switching element makes it possible to offer a completely symmetric switching characteristic against voltage and realize a more simply-designed switching element and high display performance and reliability.
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Proceedings Of The Sid; vol. 26, No. 1; 1985; Los Angeles U.S.; pp. 9-15; S. Togashi "An LC-TV Display Controlled By A a-Si Diode Rings"; Chapters 2 and 4.
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European Search Report.
Fujiwara Sayuri
Izumi Yoshihiro
Chang Kent
Conlin David G.
Hjerpe Richard
Oliver Milton
Sharp Kabushiki Kaisha
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