Liquid crystal device and method for compensating current leakage of LCD
AssigneeShenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorsWenwu Liao, Mingwei Chen
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Abstract
A liquid crystal display (LCD) and a method for compensating current leakage of the LCD are provided. The LCD includes a thin film transistor (TFT) array having a plurality of TFTs, a gate driver configured to provide a scan signal, a source driver configured to provide a data signal, and a timing controller electrically connected to the gate driver and the source driver. The timing controller is configured to adjust a current refresh frequency according to a current frame rate and to transfer a control signal to the gate driver when the current refresh frequency is lower than a threshold frequency such that the gate driver increase a charging time of the plurality of TFTs according to the control signal.
Claims10
A liquid crystal display (LCD), comprising:
- a thin film transistor (TFT) array, comprising a plurality of TFTs;
- a gate driver, configured to provide a scan signal;
- a source driver, configured to provide a data signal;
- and
- a timing controller, electrically connected to the gate driver and the source driver, configured to calculate a vertical blank interval, to adjust a current refresh frequency according to a current frame rate, and to transfer a control signal to the gate driver when the current refresh frequency is lower than a threshold frequency and the vertical blank interval is longer than a threshold time period such that the gate driver increase a charging time of the plurality of TFTs according to the control signal.
A method for compensating current leakage of a liquid crystal display (LCD) that comprises a thin film transistor (TFT) array having a plurality of TFTs, a gate driver configured to provide a scan signal, a source driver configured to provide a data signal, and a timing controller, the method executable by the timing controller comprising:
- adjusting a current refresh frequency according to a current frame rate;
- calculating a vertical blank interval;
- and
- transferring a control signal to the gate driver when the current refresh frequency is lower than a threshold frequency and the vertical blank interval is longer than a threshold time period such that the gate driver increases a charging time of the plurality of TFTs according to the control signal.
Dependencies are inferred from the claim text.