Backlight module driver circuit

Details Backlight module driver circuit Backlight module driver circuit

2008-09-30

2008-09-30

Owens, Douglas W. (Department: 2821)

Electric lamp and discharge devices: systems

Plural load device systems

C315S307000

Reexamination Certificate

active

11509500

ABSTRACT:
A backlight driver circuit has a transformer, a switching circuit and a plurality of switch devices. The switching circuit couples a DC voltage to a primary side of the transformer and alternates polarities thereof so that an AC voltage is generated on a secondary side of the transformer to turn on the backlight blocks. The switch devices are respectively connected between one of the backlight blocks and the transformer, and the AC voltage turns the backlight blocks on when the switch devices are turned on.

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