CONTROL CIRCUIT FOR BACKLIGHT MODULE OF ELECTRONIC DEVICE
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United States of America Patent
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Issued Date -
Feb 27, 2014
app pub date -
Jun 17, 2013
filing date -
Aug 27, 2012
priority date (Note) -
Abandoned
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Abstract
A control circuit for a backlight module of an electronic device includes a power supply unit, a sensor, an analog-digital converter (ADC), and a processor. The power supply unit provides power to the backlight module. The sensor senses a temperature of a display panel, and transmits a temperature value to the ADC. The processor compares the temperature value with a pre-stored temperature threshold. If the temperature value is greater than the temperature threshold, the processor controls the power supply unit to reduce an illumination cycle time and brightness of the backlight module.
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