Active matrix liquid crystal display for reproducing images on s

Details Active matrix liquid crystal display for reproducing images on s Active matrix liquid crystal display for reproducing images on s

1994-12-16

1996-12-10

Hjerpe, Richard

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 94, G09G 336

Patent

active

055835325

ABSTRACT:
An active matrix liquid crystal display allows thin film switching transistors to selectively turn on for supplying an image signal from a liquid crystal driving circuit to pixel electrodes opposed through liquid crystal to a counter electrode. The image signal has a voltage range variable with gradation to be indicated for reproducing an image. The liquid crystal driving circuit controls the image signal in such a manner as to be change a central value of the voltage range with the gradation to be reproduced at each pixel so that variation of a feed-through voltage is canceled.

REFERENCES:
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patent: 4761058 (1988-08-01), Okubo et al.
patent: 4909602 (1990-03-01), Kaneko et al.
patent: 5117298 (1992-05-01), Hirai
patent: 5151805 (1992-09-01), Takeda et al.
patent: 5196738 (1993-03-01), Takahara et al.
T. Yamagisawa et al, "Compensation of the Display Electrode Voltage Distortion", Japan Display '86, pp. 192-195.

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