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US 7,396,145 B2Granted
Backlight unit and method for equalizing brightness thereof
AssigneesInnocom Technology (Shenzhen) Co., Ltd., Innolux Display Corp.
InventorsMao-Jung Wang, Chuan-Pei Yu
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Abstract
A backlight module includes at least a light source generator, a housing, at least a thermal detector, and an inverter. The thermal detector is disposed in the housing for measuring the temperature within the housing when the light source generator is operating, and the inverter is electrically connected to the thermal detector and the light source generator for adjusting the electrical current of the light source generator according to the temperature measured by the thermal detector.
Claims12
A method of equalizing the brightness of a backlight unit comprising:
- providing a backlight unit, the backlight unit comprising:
- at least a light source generator for generating light;
- and
- a housing for containing the light source generator;
- providing a plurality of thermal detectors for measuring and obtaining the temperature distribution within the housing when the light source generator is operating;
- providing at least an inverter for adjusting the electrical current of the light source generator according to the temperature measured by the thermal detectors;
- and
- utilizing the inverter to increase the electrical current of the light source generator in the higher temperature region of the housing after the temperature distribution obtained.
5 more elements
Dependencies are inferred from the claim text.