Liquid crystal display with active matrix

Details Liquid crystal display with active matrix Liquid crystal display with active matrix

1992-06-04

1995-10-03

Chin, Tommy P.

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 92, 359 59, G02F 133, H04N 566

Patent

active

054555981

ABSTRACT:
An active matrix type liquid crystal display (LCD) having a thin film transistor for each liquid crystal cell, capable of decreasing attenuation off a video signal in each pixel. The active matrix type LCD has a number of liquid crystal pixels disposed in a matrix form each having a switching thin film transistor, a common drive unit for applying a row select signal to the gate of each of the switching thin film transistors of the liquid crystal pixels on the same row, and a segment drive unit for selectively applying one of the video signal and a constant bias signal to the source of each of the switching thin film transistors of the liquid crystal pixels on the same column.

REFERENCES:
patent: 4789899 (1988-12-01), Takahashi et al.
patent: 4807974 (1989-02-01), Hirai
patent: 4845482 (1989-07-01), Howard et al.
patent: 4901066 (1990-02-01), Kobayashi et al.

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