Semiconductor device, electro-optical device, and electronic...

Details Semiconductor device, electro-optical device, and electronic... Semiconductor device, electro-optical device, and electronic...

2008-04-21

2010-06-01

Tran, Thuy V (Department: 2821)

Computer graphics processing and selective visual display system

Display driving control circuitry

Display power source

C345S080000

Reexamination Certificate

active

07728831

ABSTRACT:
A semiconductor device includes a source circuit and a control circuit. The source circuit includes a plurality of operational amplifiers, a plurality of transmission gates, one end of each of the transmission gates being connected to a corresponding source line, and a buffer circuit that outputs a switch control signal. When the number of transmission gates that are turned ON/OFF using the buffer circuit is referred to as n, a gate width and a gate length of a MOSFET of each of the transmission gates are respectively referred to as Wb and Lb, a gate width and a gate length of a MOSFET of the buffer circuit are respectively referred to as Wa and La, and K indicates a constant, the relationship n×Wb×Lb≧K×(Wa/La) is satisfied.

REFERENCES:
patent: 6366065 (2002-04-01), Morita
patent: 6384806 (2002-05-01), Matsueda et al.
patent: 7623122 (2009-11-01), Fujita
patent: A 2001-188615 (2001-07-01), None

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