Electro-optical device, drive circuit, and electronic apparatus

Details Electro-optical device, drive circuit, and electronic apparatus Electro-optical device, drive circuit, and electronic apparatus

2011-07-05

2011-07-05

Lefkowitz, Sumati (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

Display power source

C345S211000, C345S213000, C349S034000

Reexamination Certificate

active

07973784

ABSTRACT:
A drive circuit of an electro-optical device includes: plural rows of scanning lines; plural columns of data lines; a plurality of common electrodes; pixel switching elements, pixel capacitors; and pixels. Here, the drive circuit includes a scanning line drive circuit; and first transistors corresponding to the plurality of common electrodes. Each of the first transistors includes: a common electrode drive circuit for connecting the common electrode to a power supply line, to which a predetermined voltage is applied, when the scanning line is selected, a common signal output circuit having a voltage for allowing a detection voltage of the common electrode corresponding to a scanning line to become a reference voltage when the scanning line is selected, and a data line drive circuit having a voltage according to the gray scale level of the pixel to the pixel corresponding to the selected scanning line via the data line.

REFERENCES:
patent: 5831605 (1998-11-01), Yasui et al.
patent: 2005/0088392 (2005-04-01), Kim et al.
patent: 2006/0208985 (2006-09-01), Hwang et al.
patent: 2007/0024560 (2007-02-01), Kim et al.
patent: A-09-218388 (1997-08-01), None
patent: A 2005-300948 (2005-10-01), None

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