Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.

Other

Shan Wang

Yichien Wen

Xiaolong Chen

A liquid crystal display panel and a driving method thereof. The liquid crystal display panel comprises: a pixel unit module comprising a plurality of pixel units arranged in a matrix; a plurality of scanning lines, each of the scanning lines connected to at least two of the pixel units on a same row; a gate driving circuit connected to the plurality of scanning lines and providing gate signals for the scanning lines to control the pixel units, which the scanning lines are connected to, to be turned on; a plurality of data lines respectively connected to at least one pixel unit on different columns; a data driving circuit, which is connected to the plurality of data lines and provides data signals for the data lines to charge the turn-on pixel units which the data lines are connected to.

Liquid crystal display panel and driving method thereof

A pixel driving system for AMOLED display device and driving method are disclosed. The pixel driving system for AMOLED display device includes a sub-pixel driving circuit and a node voltage generating module electrically connected to the sub-pixel driving circuit. Wherein the node voltage generating module is inputted with the a red-green-blue display data for processing the red-green-blue display data, obtaining an APL value of a current frame of the AMOLED display device, and according to the APL value and a preset node voltage calculation formula, the node voltage generating module generates a corresponding node voltage and outputting to the source of the driving thin-film transistor. Adjusting the gate-to-source voltage of the driving thin-film transistor by using the APL value, thereby adjusting the driving current flowing through the light-emitting diode to adjust the entire display brightness of the AMOLED display device.

Pixel driving system for AMOLED display device and driving method

The present application provides an AMOLED pixel driving circuit and a driving method thereof. The AMOLED pixel driving circuit employs a 6T1C pixel driving circuit with a specific driving timing to effectively compensate the threshold voltage to drive the thin film transistors and stabilize the current flowing through the OLED, to ensure uniform luminance of organic light emitting diodes and improve the display effect of the image. Meanwhile, the combination of the N-type thin film transistor and the P-type thin film transistor to reduce the number of the thin film transistors and the scan control signals to simplify the structure of the pixel driving circuit and increase the luminous area.

Amoled pixel driving circuit and driving method thereof

An OLED pixel driving circuit includes a first TFT, having a gate connected to a second node, and a source and a drain connected to a third node and a fourth node respectively; a second TFT, having a gate receiving a first signal, and a source and a drain connected to the second node and the fourth node respectively; a third TFT, having a gate receiving a second signal, and a source and a drain connected to a first node and the second node respectively; a fourth TFT, having a gate receiving a third signal, and a source and a drain connected to the fourth node and an anode of an OLED respectively; and a capacitor having two ends connected to the first node and the second node respectively. The third node is connected to a high voltage source and the first node is connected to a voltage input end.

OLED pixel driving circuit and driving method thereof

An OLED pixel driving circuit includes a first TFT having gate connected to a third node, and having a source and a drain connected to a second node and a first node respectively; a second TFT, having gate receiving a scan signal, and having a source and a drain connected to the first node and the third node respectively; a third TFT, having gate receiving the scan signal, and having a source and a drain connected to the second node and utilized for inputting a data voltage respectively; a fourth TFT, having gate receiving an illumination signal, and having a source and a drain connected to the second node and a DC high voltage power source respectively; a fifth TFT, having gate receiving the illumination signal, and having a source and a drain connected to the first node and an anode of an OLED, and two capacitors.

Growing community of inventors

Guangdong, China

Shan Wang