Shanghai Tianma Am-oled Co., Ltd.

Tianma Micro-electronics Co., Ltd.

Wuhan Tianma Micro-electronics Co., Ltd

Shanghai Tianma Micro-electronics Co., Ltd.

Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch

Dongxu Xiang

Yue Ping Li

Renyuan Zhu

Yana Gao

Xingyao Zhou

Zhonglan Cai

Gang Liu

Zeyuan Chen

Dong Qian

Juan Zhu

Gaojun Huang

Yilin Xu

Tong Wu

Yuan Wx Li

Yangzhao Ma

Fei Chen

Chuanli Leng

Maoqing Zhou

Yawei Wang

Wenhui Zou

Fengyun Wu

Xing Yao Zhou

Tao Peng

Xinzhao Liu

Di Zhang

Gujun Li

Xiangzi Kong

Xiaoye Li

Bozhang Sun

Chunyang Li

Xueshun Hou

The present disclosure discloses a display panel, a driving circuit and a display device. The display panel includes a pixel circuit and a light-emitting element. A data writing cycle of the pixel circuit includes a data writing phase and m holding phases. In the data writing phase, the first scan signal includes at least one first valid pulse. A light emission control signal includes one second valid pulse in the data writing phase and in each holding phase. The working modes of the display panel includes a first mode. In the first mode, the interval between the start time of the first valid pulse in the (i+1)-th data writing cycle and the end time of the last second valid pulse in the i-th data writing cycle is t, and in the data writing phase, the duration of the light emission control signal being an invalid pulse is t, and m and i are integers.

Display panel, driving circuit and display device for ameliorating color cast phenomenon

Provided are a display panel and a display apparatus. The display panel includes a normal display region and a functional region. The normal display region includes a first display region, a second display region and a third display region. Along a first direction, lengths of third, first and second display regions of the normal display region decrease. One of the first and third display regions is a specific display region where first semiconductor pattern layers are located. The first semiconductor pattern layers are arranged along a third direction and connected to each other. In the second display region, the second semiconductor pattern layers first semiconductor pattern layers is arranged along a third direction and connected to each other. The second semiconductor pattern layers are connected to the first semiconductor pattern layers.

Display panel and display apparatus

Provided are an organic light-emitting display panel, a driving method and a driving device therefor. The driving method includes: setting brightness levels of the organic light-emitting display panel and maximum gray scale brightness levels, and maximum gray scale brightness levels include a first maximum gray scale brightness corresponding to a maximum brightness level of the organic light-emitting display panel, and an effective pulse duty cycle of a light-emitting control signal for driving the first maximum gray scale brightness is defined as a first effective pulse duty cycle; determining a target brightness level of the switched picture and a target maximum gray scale brightness corresponding to the target brightness level; adjusting the target effective pulse duty cycle of the light-emitting control signal for driving the switched picture.

Pixel circuit for adjusting maximum brightness for organic light-emitting display panel, and organic light-emitting display panel

A display panel and a display device are provided in the present disclosure. The display panel includes a plurality of pixels, including first pixels and second pixels, where each of the first pixels includes a first light-emitting element connected with a first pixel circuit; the first pixel circuit includes a first drive transistor; each of the second pixels includes a second light-emitting element connected with a second pixel circuit; and the second pixel circuit includes a second drive transistor. The display panel further includes a display region, including an optical component region and a first display region, where the first light-emitting element is in the optical component region; the second light-emitting element is in the first display region.

Display panel having optical component region and display device

A display panel and a display device are provided in the present disclosure. The display panel includes first pixels and second pixels, and further includes a display region including an optical component region and a regular display region. First light-emitting elements are in the optical component region; second light-emitting elements are in the regular display region; and a density of the light-emitting elements in the optical component region is less than a density of the light-emitting elements in the regular display region. The first pixels include first blue pixels, first red pixels, and first green pixels; a width-to-length ratio of a first drive transistor corresponding to a first blue pixel is R1, a width-to-length ratio of a first drive transistor corresponding to a first red pixel is R2, and a width-to-length ratio of a first drive transistor corresponding to a first green pixel is R3, where R1&#x3e;R2&#x3e;0 and/or R1&#x3e;R3&#x3e;0.

Display panel with different pixel density and display device

The present disclosure provides an emission controller, a driving method thereof, and a display device. The emission controller includes a first processing module, a second processing module, a third processing module, an output module and a shift control module. The first processing module generates a first signal in response to a first control signal, a second control signal and a second signal. The second processing module generates a second signal in response to the first control signal and the first signal. The third processing module generates third and fourth signals in response to the second control signal, the second and first signals. The output module provides emission control signal in response the first and fourth signal. The shift control module provides a shift control signal in response to the first and fourth signal, or provides a shift control signal in response to the first and third signal.

Emission controller, driving method, and display device

Provided is a display panel and display device. A display area of a display panel includes a first area and a second area. The number of pixel units in each row in the first area is less than the number of pixel units in each row in the second area. The scanning lines electrically connected to the first shift registers are disposed in the first area, and the scanning lines electrically connected to the second shift registers are disposed in the second area. The first shift registers and the second shift registers are electrically connected to a first clock signal line, and the first shift registers are electrically connected to the first clock signal line through resistance compensation units.

Display panel and display device

Disclosed are a pixel circuit, a driving method, a display panel and a display device. A data writing module of the pixel circuit supplies a data signal to a gate electrode of a drive transistor and a first plate of a storage capacitor in a data writing phase. A reset module of the pixel circuit supplies a reset signal to a second plate of the storage capacitor in a data writing phase. A threshold compensation module of the pixel circuit supplies a threshold compensation signal to the second plate of the storage capacitor in a threshold compensation phase, and accordingly a potential of the first plate of the storage capacitor is adjusted to a first potential, and the drive transistor is threshold compensated. The threshold compensation signal is greater than the reset signal. A drive transistor supplies a drive current to an organic light-emitting element in a light emission phase to drive the organic light-emitting element to emit light.

Pixel circuit, driving method thereof, display panel and display device

Provided are a pixel circuit and a drive method thereof, a display panel and a display device. The pixel circuit includes: a drive transistor, a storage capacitor, a data writing module, a threshold compensation module, and an organic light emitting element. The data writing module is electrically connected to a gate of the drive transistor and a first plate of the storage capacitor, and is configured to write a data signal to the gate of the drive transistor and the first plate of the storage capacitor at a data writing phase. The threshold compensation module is electrically connected to a second plate of the storage capacitor, and is configured to adjust a potential of the second plate of the storage capacitor to a first potential at the data writing phase, and adjust the potential of the second plate of the storage capacitor to a second potential.

Pixel circuit and drive method thereof, display panel, and display device

The present disclosure provides a shift register, a driving method thereof, a scan driving circuit and a display device. The shift register includes: a first node control module configured to control level at the first node based on an input signal and a second clock signal; a second node control module configured to control level at a second node based on the input signal, the first clock signal, the second clock signal, a low level signal and a high level signal; and an output control module configured to control the output terminal to output high level or low level based on level at the first node, level at the second node and the second clock signal. The second node can be provided with a relatively low level, which is conductive to maintaining a normal output of the shift register.

Scan driving circuit, driving method, and display device

Provided are a display panel and a display device. The display panel includes a display assembly and a fingerprint recognition assembly. The display assembly includes a base substrate, a plurality of pixel units disposed on one side of the base substrate and a first scanning line extending along a first direction, each of the plurality of pixel units includes a pixel driving unit and a light-emitting unit disposed on one side of the pixel driving unit facing away from the base substrate, and the light-emitting unit includes a metal anode. The fingerprint recognition assembly is configured to perform fingerprint recognition according to light reflected by a touch object to a fingerprint recognition unit. A vertical projection of the first scanning line on the base substrate and a vertical projection of the metal anode on the base substrate have an overlapping area.

The present disclosure provides a shift register, a driving circuit, a display device and a driving method for improving the accuracy of an output signal. The first input unit of the shift register is configured to provide a signal at a first fixed potential terminal to a first node, a signal at the input signal terminal to the first node and the signal at the input signal terminal to the first node. A second input unit of the shift register is configured to provide the signal at the input signal terminal to the second node and a signal at the first fixed potential terminal to the second node. An output unit of the shift register is configured to provide a signal at the first clock signal terminal to an output signal terminal of the shift register and a signal at a second fixed potential terminal to the output signal terminal.

Driving circuit, display device and driving method

The present disclosure provides an emission control circuit including a first processing module, a second processing module, a third processing module and an output module. The first processing module generates a first signal in response to a first control signal, a second control signal and a second signal. The second processing module includes a first transistor having a control electrode electrically connected to the first node, a first electrode electrically connected to the second node and a second electrode electrically connected to the first control signal terminal, and a second transistor having a control electrode electrically connected to the first control signal terminal, a first electrode electrically connected to the second node and a second electrode electrically connected to the first control signal terminal. The third processing module generates a third signal and a fourth signal in response to the second control signal, the first signal and the second signal.

Growing community of inventors

Shanghai, China

Dongxu Xiang