Shenzhen China Star Optoelectronics Technology Co., Ltd.

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

Xiaoling Wu

Yuanchun Wu

Shipeng Chi

A pixel bank manufacturing method, a pixel bank structure, a pixel structure, and a display panel are provided. The method includes providing a base substrate, wherein a plurality of anode thin film layers are manufactured on the base substrate; coating a photoresist layer used for covering the plurality of anode thin film layers on the base substrate; performing a photolithography on the photoresist layer by an exposing patterning structure, and baking to cure a remained photoresist layer after the photolithography to form a first bank layer; the exposing patterning structure is a structure that full via holes, first half via holes, a plurality of blind via holes, and second half via holes are arranged repeatedly; forming a second bank layer on the first bank layer; the second bank layer is a black bank layer.

Pixel bank manufacturing method, pixel bank structure, pixel structure, and display panel

The present disclosure relates to pixel compensation circuit, pixel compensation method and flat display device. Control ends of first to third, fourth, and fifth controllable transistors connect to first to third, third, and fourth scanning lines, first end of first controllable transistor connects to data line, control end of driving transistor connects to second ends of first controllable transistor, and second controllable transistors through storage capacitor, and first end of third controllable transistor; first end of second controllable transistor connects to first voltage end, second end of driving transistor connects to second end of second controllable transistor and anode of OLED; cathode of OLED is grounded; first end of driving transistor connects to second ends of third and fifth controllable transistors and first end of fourth controllable transistor, second end of fourth controllable transistor connects to reference voltage end; first end of fifth controllable transistor connects to second voltage end.

Pixel compensation circuits, scanning driving circuits and flat display devices

Pixel compensation circuit, method and flat display device. The circuit includes control terminals of first to fourth controllable and driving switches respectively connected with first to fourth scanning lines and second terminal of the second controllable switch, first terminal of the first controllable switch connected with data line; first terminal of the second controllable switch connected with second terminal of the first controllable switch; first terminal of the third controllable switch connected with the second terminal of the first controllable switch; the second terminal of the first controllable switch is connected with the second terminal of the driving switch through a storage capacitor; anode of an OLED connected with the second terminal of the driving switch, cathode is grounded; first terminal of the fourth controllable switch connected with second voltage terminal, which can avoid unstable current of the organic light emitting diode by drift of threshold voltage of driving transistor.

Pixel compensation circuit, method and flat display device

Pixel compensation circuit, method and flat display device. The circuit includes a control terminal of a first controllable switch connected with a first scanning line, first terminal connected with data line; second terminal connected with control terminal of the driving switch through a storage capacitor, a first terminal of the driving switch connected with a voltage terminal; a control terminal of the second controllable switch connected with a second scanning line, a first terminal connected with the control terminal of the driving switch, the second terminal connected with second terminal of the driving switch; control terminal of the third controllable switch connected with a third scanning line, first terminal connected with the second terminal of the driving switch; anode of an OLED connected with the second terminal of the third controllable switch, cathode is grounded to avoid unstable current of the OLED by drift of threshold voltage of driving transistor.

The present invention provides an AMOLED pixel driving circuit and a pixel driving method. The AMOLED pixel driving circuit utilizes a 8T1C structure, comprising a first, a second, a third, a fourth, a fifth and a sixth, a seventh and an eighth thin film transistors (T, T, T, T, T, T, T, T), a capacitor (C) and an organic light emitting diode (OLED). The AMOLED pixel driving circuit, by directly gaining the second thin film transistor (T), i.e. the drive thin film transistor, can effectively compensate the threshold voltage of the drive thin film transistor and stabilize the current flowing through the organic light emitting diode (OLED) to ensure the uniform brightness of the organic light emitting diode (OLED) and improve the display effect of the pictures. The unnecessary irradiance of the organic light emitting diode (OLED) can be avoided to reduce the electrical power consumption.

AMOLED pixel driving circuit and pixel driving method that implements threshold voltage compensation by directly gaining threshold voltage of driving TFT

The present invention provides an OLED pixel structure, comprising red, green, blue sub pixel areas, and the red, the green, the blue sub pixel areas respectively comprise a substrate, an anode formed on the substrate, a flat layer formed on the anode, an organic light emitting layer formed on the flat layer and a cathode formed on the organic light emitting layer, and an aperture area is formed on the flat layer, and the organic light emitting layer contacts the anode through the aperture area, and the anode comprises a positive electrode and a positive electrode compensation area coupled to the positive electrode, and the cathode, the positive electrode compensation area and a sandwiched layer between the cathode and the positive electrode compensation area constitute a compensation capacitor, and the compensation capacitor respectively makes total capacitance values of the red, green, blue sub pixel areas are equivalent to reach the capacitance value required by an drive circuit of the OLED element.

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Shenzhen, China

Xiaoling Wu