| 摘要 |
An exemplary liquid crystal display includes a backlight module and a liquid crystal panel provided adjacent to the backlight module. The liquid crystal panel includes a display module, a gate driving circuit, a power supply input configured for providing a first voltage obtained from a power supply, a photoelectric conversion unit, and a comparator. The gate driving circuit is configured for scanning the display module. The photoelectric conversion unit is configured for receiving light from the backlight module and converting the light into a second voltage. The comparator is configured for comparing the first voltage and the second voltage, and providing the greater one of the first and second voltages to the gate driving circuit.
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