Crosstack reducing method of driving an active matrix liquid cry

Details Crosstack reducing method of driving an active matrix liquid cry Crosstack reducing method of driving an active matrix liquid cry

1993-02-12

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 89, G09G 336

Patent

active

055835333

ABSTRACT:
The invention provides a driving method of an active matrix liquid crystal display. Alternating pulse voltage signals synchronizing with gate control pulse voltage signals are applied on data lines. Predetermined positive and negative constant voltages are applied on data lines in an initial time interval. The constant voltages to be applied on adjacent two lines have inverse polarities relative to one another, which are independent of image data. Subsequently, voltage signals corresponding to image data are applied on the data lines in a latter time interval, each of which has a voltage level corresponding to a gray level of a pixel in the display. The voltage signal has the same polarity as the constant voltage.

REFERENCES:
patent: 4638310 (1987-01-01), Ayliffe
patent: 4681404 (1987-07-01), Okada et al.
patent: 4705345 (1987-11-01), Ayliffe et al.
patent: 5136282 (1992-08-01), Inaba et al.
patent: 5157387 (1992-10-01), Momose et al.
patent: 5247376 (1993-09-01), Wakai
"Eliminating Crosstalk in Thin Film Transistor/Liquid Crystal Displays", 1988 International Display Research Conference, 1988 IEEE, By W. Howard et al., pp. 230-235.

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