Data driver for use in liquid crystal display

Details Data driver for use in liquid crystal display Data driver for use in liquid crystal display

1997-03-25

2000-04-11

Shalwala, Bipin

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 98, 345100, G09G 506

Patent

active

060493208

ABSTRACT:
A ramp signal application type of data driver in a liquid crystal display. The data driver includes a plurality of shift registers and sample and hold circuits that sample data lines. A plurality of timing control parts receive the sampled data from the sample and hold circuits and n timing signals having different periods from each other to thereby perform a logical operation. A plurality of transistors receive a ramp signal and are switched in accordance with the signals output by the timing control parts to output the ramp signal based on when the transistor is on and off.

REFERENCES:
patent: 5166670 (1992-11-01), Takeda et al.

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