Apparatus and method for driving backlight
AssigneeLG Display Co., Ltd.
InventorChangho LEE
Life of this patent
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Abstract
An apparatus for driving a backlight includes a controller for driving a lamp; a limiter for preventing the controller from driving the lamp during a contact condition of the lamp; and means for disabling the limiter during a first time of the controller, wherein the controller drives the lamp from a zero condition to the contact condition during the first time of the controller.
Claims15
1-10. (canceled)
A liquid crystal display device, including the apparatus for driving a backlight of claim 10.
An apparatus for driving a backlight, comprising:
- a controller for providing a pulse signal and a control signal having a first time interval;
- an FET for converting the pulse signal from the controller;
- a transformer for boosting the converted pulse signal into a lamp driving signal to drive a lamp;
- a protective circuit outputting an enabling signal to the controller in response to the lamp driving signal;
- and means for preventing the protective circuit from outputting of the enabling signal during the first time interval.
23-29. (canceled)
The method according to claim 28, wherein the controller provides a control signal having a low level at the first time interval and a high level at other time intervals except for the first time interval.
Dependencies are inferred from the claim text.