Patent ID: 11967296
Assignee: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A driving method of a liquid crystal display device, comprising:
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 said 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.