Thin film active matrix and addressing circuitry therefor

Details Thin film active matrix and addressing circuitry therefor Thin film active matrix and addressing circuitry therefor

1987-12-29

1990-05-01

Brier, Jeffery A.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340719, 350333, G09G 336

Patent

active

049222406

ABSTRACT:
In a matrix display device, such as an LCD-TV, supply of data signals to each one of an array of display elements is controlled by respective switching means in response to applied switching signals. Novel addressing circuitry is provided to achieve redundancy and avoid improper charge levels on non-selected switching means.

REFERENCES:
patent: 3862360 (1975-01-01), Dill et al.
patent: 4582395 (1986-04-01), Morozumi et al.
patent: 4724433 (1988-02-01), Inoue et al.
patent: 4789857 (1988-12-01), Maurice
"Liquid Crystal Matrix Displays", Lechner et al., Proceedings of the IEEE, Nov., 1981, pp. 1566-1579.
"LCD Addressed by a-Si TFTs Employing Redundancy Technology", Takeda et al.; Japan Display '86, pp. 204-207.
"A New Overhead Projection System Using a Defectless 640.times.400 Pixel Active-Matrix LCD . . . ", Takehashi et al., SID 87 Digest, pp. 79-81.
"The 5-Inch Size Full Color Liquid Crystal Television Addressed by Amorphous Silicon Thin Film Transistors", Yamano et al., IEEE Transactions on Consumer Electronics, Feb., 1985, pp. 39-43.
"Active Matrix Liquid-Crystal Display with Integrated Scanner Electronics", Malmberg et al., SID 86 Digest, pp. 281-284.

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