Patent ID: 11967296
Assignee: HKC CORPORATION LIMITED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A liquid crystal display device, comprising: a gate driver, a switch element, a memory, a processor, and a computer program stored in the memory and executable by the processor, wherein the computer program, when being executed by the processor, causes the liquid crystal display device to perform operations that comprise:
detecting whether a light leakage has occurred in the liquid crystal display device; and
adjusting a turn-off voltage output from a gate driver to a gate of a switch element to reduce an absolute value of a voltage difference between the turn-off voltage and a common voltage when the light leakage has occurred in the liquid crystal display device,
wherein the operation of adjusting the turn-off voltage output from the gate driver to the gate of the switch element to reduce the absolute value of the voltage difference between the turn-off voltage and the common voltage comprises:
boosting up the turn-off voltage to reduce the absolute value of the voltage difference between the turn-off voltage and the common voltage when an active layer of the switch element is an N-type doped semiconductor material layer, wherein the active layer has a high trap density, the turn-on voltage>the common voltage>the turn-off voltage; and
stepping down the turn-off voltage to reduce the absolute value of the voltage difference between the turn-off voltage and the common voltage when the active layer of the switch element is a P-type undoped semiconductor material layer, wherein the active layer has a low trap density, the turn-off voltage>the common voltage>the turn-on voltage.