Source driver and source driving method

Details Source driver and source driving method Source driver and source driving method

2005-03-18

2008-10-07

Tran, Henry N (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

Display power source

C345S098000, C345S100000, C330S054000, C330S255000

Reexamination Certificate

active

07432922

ABSTRACT:
A source driver for LCD devices, used for driving at least one data line, comprises an input for receiving a predetermined voltage; an output electrically being connected to the data line and having an output voltage; a voltage clamping circuit for clamping the output voltage within a predetermined voltage range; a first differential amplifier for increasing the clamped output voltage toward the predetermined voltage; and a second differential amplifier for decreasing the clamped output voltage toward the predetermined voltage. The present invention also provides a source driving method for LCD devices.

REFERENCES:
patent: 6081131 (2000-06-01), Ishii
patent: 6323847 (2001-11-01), Kaneko et al.
patent: 6567327 (2003-05-01), Tsuchi
patent: 7068098 (2006-06-01), Bell et al.

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