Display device and method of driving display device

Details Display device and method of driving display device Display device and method of driving display device

1997-12-29

2000-08-29

Saras, Steven J.

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345147, 345100, G09G 336

Patent

active

061115576

ABSTRACT:
A structure of an active matrix liquid crystal display device for carrying out gradation display with a digital picture signal being input is simplified. In order to carry out display of multilevel gradation, for example, 64 levels of gradation, eight kinds of gradation voltage in eight periods obtained by dividing one line period are selected. Here, information with regard to the eight kinds of gradation voltage and information with regard to the eight kinds of selection timing are supplied to digital decoders. Based on the information, gradation voltage is selected according to predetermined timing. By this, 64 levels of gradation can be displayed. Since, in this structure, there are only eight levels of gradation voltage in one timing, the structure of the circuit can be simplified.

REFERENCES:
patent: 5051739 (1991-09-01), Hayashida et al.
patent: 5168270 (1992-12-01), Masumori
patent: 5663744 (1997-09-01), Seike et al.
patent: 5745089 (1998-04-01), Taguchi et al.
patent: 5828357 (1998-10-01), Tamai et al.

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