Backlight driving circuit with follower and liquid crystal...

Details Backlight driving circuit with follower and liquid crystal... Backlight driving circuit with follower and liquid crystal...

2011-06-28

2011-06-28

Nguyen, Chanh (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

Reexamination Certificate

active

07969407

ABSTRACT:
An exemplary backlight driving circuit (20) a first power supply (260); a second power supply (270); a signal output terminal (280); an AND gate (210); a follower (220); a capacitor (290); a reverser (230); a first transistor (240), which is a N-Channel mode metal-oxide-semiconductor field-effect transistor (N-MOSFET), having a gate electrode connected to an output end of the AND gate through the follower, a source electrode connected to the signal output terminal, a drain electrode connected to the first power supply; and a second transistor (250), which is a N-Channel mode metal-oxide-semiconductor field-effect transistor (N-MOSFET), having a gate electrode connected to the output end of the AND gate through the reverser, a source electrode connected to the ground, a drain electrode connected to the signal output terminal.

REFERENCES:
patent: 6119023 (2000-09-01), Tomiyori
patent: 6376999 (2002-04-01), Li et al.
patent: 6778163 (2004-08-01), Ozawa
patent: 7042274 (2006-05-01), Hazucha et al.
International IR Rectifier, “PFC Ballast Control IC,” IR2167(S), Data Sheet No. PD60184-D, (Aug. 19, 2002).

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