Boe Technology Group Co., Ltd.

Hefei Boe Display Technology Co., Ltd.

Xiuqin Yang

Huiming Wang

Jing Yan Ma

Peng Zhao

Rongcheng Liu

Siying Lu

Min Wang

Jian Li

Dong Hui Liu

Chao Kong

Jilei Gao

Wenbo Dong

Jinbo Xu

Yanwei Lv

Qing Lei

Circuit and method for preventing screen flickering, a drive circuit for a display panel, and a display apparatus are provided, relating to the field of display technology. The circuit for preventing screen flickering includes a control sub-circuit configured to control a gate drive circuit of the display panel to output a gate cut-off level during a power-on period of the display panel. The gate drive circuit of the display panel is controlled to output the gate cut-off level during the power-on period, the gate cut-off level is provided to gate lines of the display panel such that TFTs connected to the gate lines are in cut-off state during the power-on period.

Circuit and method for preventing screen flickering, drive circuit for display panel, and display apparatus

A display panel includes a plurality of source driving chips, a power management circuit, and a plurality of switching units. The power management circuit includes a first output terminal, and the first output terminal is configured to provide a digital power signal to the source driving chips; and the plurality of switching units are respectively arranged corresponding to at least one of the source driving chips, the switching units are connected to the first output terminal and the corresponding source driving chips, and at least part of the switching units are configured to turn on the corresponding source driving chips and the first output terminal in different time periods in response to different control signals.

Display panel and display device

Embodiments of the present disclosure provide an erasing unit for image sticking in a liquid crystal display device, a control method thereof and a liquid crystal display device. A first controlling signal may be generated by dividing a voltage at a DC power supply terminal. A controlling circuit may output a second controlling signal and a third controlling signal in responding to the voltage of the first controlling signal being smaller than or equal to a reference voltage. A charging and discharging circuit may discharge under the control of the second controlling signal and output a high-level voltage signal to an outputting circuit. The outputting circuit may supply the high-level voltage signal outputted by the charging and discharging circuit to TFTs in the liquid crystal display device, controlling the TFTs to be turned on.

Erasing unit for image sticking, control method thereof, and liquid crystal display device

The embodiments of the present disclosure propose a booster circuit and a method for driving the same, a shutdown circuit and a method for driving the same, and a display apparatus. The booster circuit includes a first input sub-circuit coupled to a first input signal terminal, a first voltage signal terminal, and an output signal terminal, and configured to transmit a first voltage signal at the first voltage signal terminal to the output signal terminal under control of a first input signal at the first input signal terminal; a second input sub-circuit coupled to a second input signal terminal, the first voltage signal terminal and a first node, and configured to transmit the first voltage signal at the first voltage signal terminal to the first node under control of a second input signal at the second input signal terminal; and a first storage sub-circuit coupled to the output signal terminal and the first node, and configured to cause a level of an output signal at the output signal terminal to be raised to a level higher than the first voltage signal.

Booster circuit, shutdown circuit, methods for driving the same, and display apparatus

A method for driving a display panel, a device for driving a display panel and a display device are provided. The method for driving a display panel includes: acquiring a GOA signal corresponding to a current frame of image, where the GOA signal includes a plurality of clock signals; determining a transmission channel corresponding to each of the plurality of clock signals, and generating a correspondence relationship between the clock signals and respective transmission channels, where the transmission channels are used to deliver the clock signals from a GOA control signal generator to a GOA circuit of the display panel, the current frame of image is different from at least one frame of image previous to the current frame of image with respect to the correspondence relationship between the clock signals and respective transmission channels; and transmitting the clock signals by using the determined transmission channels.

Method and device for driving display panel and display device

The present disclosure provides a display driving circuit and a driving method thereof, a display panel, and a display device. The display driving circuit comprises: a gate auxiliary circuit configured to selectively output one of a data signal from a source driver and a common voltage signal in response to a first control signal; and a gate auxiliary circuit configured to selectively output one of a scan signal from a gate driver and an active level signal in response to a second control signal, the active level signal being a signal enabling a corresponding switch transistor to be turned on.

Growing community of inventors

Beijing, China

Xiuqin Yang