Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2006-05-17
2009-08-11
Dinh, Duc Q (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S087000, C345S211000, C315S160000
Reexamination Certificate
active
07573456
ABSTRACT:
A voltage impressed across the drain and source is reduced by further connecting in series one or two or more transistors between a couple of transistors in an output circuit including an output stage formed by connecting in series a couple of output transistors between a couple of power source voltage terminals and outputting the signal supplied to a gate signal generating circuit of a liquid crystal panel. Simultaneously, potential setting switch elements are also provided to prepare an intermediate potential of a couple of power source voltages and impress the intermediate potential to a base material of output transistors of the OFF state while the output transistors are turned OFF. Thereby, a liquid crystal display driving semiconductor integrated circuit may be realized. Accordingly, low manufacturing cost can also be realized without use of the high voltage resistance process by constituting a circuit for outputting the signal supplied to a gate signal generating circuit of a liquid crystal panel with an element having low resistance voltage. Moreover, operation rate of the output circuit can be improved and power consumption thereof can also be reduced.
REFERENCES:
patent: 5457420 (1995-10-01), Asada
patent: 6081131 (2000-06-01), Ishii
patent: 6919873 (2005-07-01), Sato et al.
patent: 6970162 (2005-11-01), Murayama et al.
patent: 2004/0105140 (2004-06-01), Fujita
patent: 2004-163600 (2004-06-01), None
Dinh Duc Q
Miles & Stockbridge P.C.
Renesas Technology Corp.
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