Drive circuit for display apparatus

Details Drive circuit for display apparatus Drive circuit for display apparatus

1992-08-21

1995-03-28

Oberley, Alvin E.

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 94, 345100, 345198, G09G 336

Patent

active

054021421

ABSTRACT:
A drive circuit for a display apparatus includes an input section for receiving a digital video signal, a voltage supply section for generating a common electrode voltage and a plurality of gradation voltages, a driving section for selecting one of the plurality of gradation voltages according to the input digital video signal and applying the selected gradation voltage to one of the pixel electrodes, and for applying the common electrode voltage to the common electrode, the common electrode voltage being shifted based on a certain relationship so that a central value of the common electrode voltage is different from central values of the gradation voltages.

REFERENCES:
patent: 4393380 (1983-07-01), Hosokawa
patent: 4413256 (1983-11-01), Yasuda
patent: 5184118 (1993-02-01), Yamazaki
patent: 5214417 (1993-05-01), Yamazaki

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