Wuhan China Star Optoelectronics Technology Co., Ltd.

Other

Chao Tian

Yanqing Guan

Juncheng Xiao

Fei Ai

Guanghui Liu

Haiming Cao

Xin Hui Zhang

Mingyue Li

Yongxiang Zhou

Zhifu Li

Hong Cheng

Li Zhong

Shengyang Chen

Xuebin Yuan

Zhou Zhou

The present application provides a display panel and a display device. Pulse width modulation modules of a plurality of sub-pixels included in the same sub-pixel group receive the same frequency sweep signal, and pulse width modulation modules and the pulse amplitude modulation modules of the plurality of sub-pixels included in the same sub-pixel group receive the same light emission control signal. The start time when pixel driving circuits of at least two of the sub-pixel groups provide flow paths for corresponding driving currents according to corresponding light emission control signals is different.

Display panel and display device

The present application discloses a gate drive circuit and a display device. The gate drive circuit includes a plurality of cascaded gate drive units, in which one of the gate drive units includes a first layout, an input module and a pull-up module. By receiving a potential changeable signal by the gate of a first transistor or the gate of a second thin-film transistor, it can alleviate or avoid current leakage caused when a first node keeps at a same voltage level for a long time, thereby improving the stability of the potential of the first node.

Gate drive circuit and display device

The present application provides a display panel and a display device, the display panel includes: N scan lines, the N is an integer greater than or equal to 1; and J sets of forward and reverse scan pull-down circuits, each set of the forward and reverse scan pull-down circuits includes N forward and reverse scan pull-down modules, at least a part of each of the forward and reverse scan pull-down modules is disposed in the display subarea, and the J is an integer greater than or equal to 1. In each set of the forward and reverse scan pull-down circuits, output terminals of the N forward and reverse scan pull-down modules are connected to the N scan lines in a one-to-one correspondence.

The present application discloses a display panel, the display panel includes an active area and a irregular-shaped area, the active area includes a first active area disposed at at least one side of the irregular-shaped area and a second active area connected with the first active area. The first signal line is disposed in the second active area, the second signal line is disposed in the first active area, the first signal line and the second signal line extend in a same direction, and the length of the first signal line is larger than the length of the second signal line, and at least one of a plurality of the compensation units is connected with the second signal line.

Display panel

A display panel, a pixel driving circuit, and a display device are provided. Driving transistors include a first transistor and a second transistor connected in parallel. An absolute value of a threshold voltage of the first transistor is greater than an absolute value of a threshold voltage of the second transistor. A carrier mobility of the first transistor is greater than a carrier mobility of the second transistor. A driving current is affected by characteristics of the second transistor and an increase speed is slowed down, which improves a problem of color unevenness of the display panel at low brightness.

Display panel, pixel driving circuits, and display device

An embodiment of the present disclosure is directed to a display panel. The display panel includes a plurality of scan lines and a plurality of forward and reverse scan pull-down circuit. The plurality of scan lines is located on the display area. Each of the forward and reverse scan pull-down circuits includes a forward scan control module, a reverse scan control module, and a pull-down module located on a display area. The pull-down module includes an output terminal and a control terminal coupled to an output terminal of the forward scan control module and an output terminal of the reverse scan control module.

The present application provides a display panel and an electronic device. The electronic device comprises the display panel. The display panel comprises a gate driving unit, a first auxiliary driving unit and scan lines. The first auxiliary driving unit rapidly pulls down the falling edge of the scan signal transmitted in the scan line to reduce the delay of the falling edge of the scan line. Thus, the number of gate driving units in the display panel can be reduced, thereby reducing the width of the frame of the display panel and the electronic device.

Display panel using auxiliary driving units and electronic device

The present application provides a display panel in which transistors in an input pull-up module, a stage transfer output module, and an output pull-up module are provided as P-type low temperature polysilicon thin film transistors, and a transistor in an output pull-down module is provided as an N-type metal oxide thin film transistor.

A gate driving circuit and a display panel are disclosed. A pull-up control module and a pull-down module of each stage gate driving unit are connected to a first node. A thin film transistor in the pull-up control module and/or pull-down module that is connected to the first node is an oxide thin film transistor, such that a leakage current of the first node is reduced due to the advantage of the small off-state leakage current of the oxide thin film transistor. Therefore, the voltage level of the first node can remain stable during a pull-up stage and a touch suspension stage.

Gate driving circuit and display panel

The present application provides a display panel and a display device. An N-th auxiliary unit is arranged in a display area of the display panel. An output end of the N-th auxiliary unit is connected to an N-th scan line. By connecting the auxiliary unit arranged in the display area to the corresponding scan line, a falling edge of a scan signal transmitted in the scan line can have sharp falling or a rising edge of the scan signal can have sharp rising, which can alleviate a signal distortion problem caused by transmission delay in the display area.

A thin film transistor and a display panel are provided. A first dimension of a first transmission portion electrically connected to a source heavily-doped portion is different from a second dimension of a second transmission portion electrically connected to a drain heavily-doped portion, so that an intensity of an electric field of carriers transmitted by the transmission portion corresponding to the larger one of the first dimension or the second dimension is smaller when the thin film transistor is turned on, thereby reducing the bombardment effect of the carriers on a source or a drain and improving the stability of thin film transistor.

Thin film transistor and display panel

The present application discloses a gate driving circuit and a display panel. The gate driving circuit comprises a plurality of cascaded gate driving modules. A first driving signal can be output through a first output node, and at the same time, a second driving signal with a same phase as the first driving signal can be output through a second output node, and a gate driving sub-module and an in-phase output sub-module share the first output node and a pull-down node, which simplifies a circuit topology of the gate driving circuit.

Gate driving circuit outputting two scan signals with a same phase and display panel

The present disclosure discloses a pixel circuit and a display panel. The pixel circuit includes a light emitting module and a driving module including at least two driving units connected in parallel. a quantity of displayable gray scales can be improved or increased by configuring at least two driving units connected in parallel in the driving module where the at least two driving units can each correspondingly configure a light emitting current so that a plurality of light emitting brightness of the light emitting module can be implemented by a sum of these light emitting currents.

Pixel circuit and display panel

A driving circuit and a display panel are provided. The driving circuit includes a plurality of driving units which are cascaded. An Nth stage driving unit includes: a pull-up control module; a first bootstrap module; a pull-up module; a pull-down control module; and a first pull-down module. The driving circuit can be normally operated by input signal lines including a first clock signal line, a second clock signal line, a first power signal line, a second power signal line, and an initial signal line, so that types and a number of the input signal lines can be effectively reduced.

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Hubei, China

Chao Tian