Hkc Corporation Limited

Yuanping Zhang

Mancheng Zhou

Haijiang Yuan

Rongrong Li

Hao Tang

Xinghan Liu

Peng Ren

A driving circuit for a display panel, a display device, and a driving method are provided. The driving circuit includes a common voltage feedback line and N common voltage detection units. The N common voltage detection units are electrically connected to N common voltage collection points of a common electrode of the display panel in one-to-one correspondence. Each common voltage detection unit includes a switch module and a logic circuit. The switch module has a first connection end electrically connected to a common voltage collection point corresponding to the common voltage detection unit and a second connection end is electrically connected to the common voltage feedback line. N logic circuits sequentially output control signals to corresponding switch modules, and control N switch modules to sequentially turn on, to make the N common voltage collection points sequentially output N common voltages through the turned-on switch modules and common voltage feedback line.

Liquid crystal display (LCD) driving circuit compensating gray-scale loss due to attenuation of common voltage

An array substrate includes a plurality of TFT switches arranged in an array and a scan driver circuit. In each row of TFT switches, a plurality of TFT switches form a first group of switches, and the rest of the TFT switches form a second group of switches. The scan driver circuit outputs first and second scan signals for each row of the TFT switches. The first group of switches receives the first scan signal, and the second group of switches receives the second scan signal. When a static image is displayed, the first scan signal or the second scan signal is an off signal to turn off the first or second group of switches.

Array substrate, control method thereof, and display panel

A display panel driving method, a driving apparatus, and a display apparatus are provided. The method includes: determining an over driving voltage according to a first display gray scale and second display gray scale, the first display gray scale a display gray scale of a target pixel cell in a current frame, the second display gray scale a display gray scale of the target pixel cell in a previous frame; determining a pre-charging gray scale according to the second display gray scale and a third display gray scale, the third display gray scale a display gray scale of a row above the target pixel cell in the current frame; determining a target gray scale according to the over driving gray scale and pre-charging gray scale; determining a target driving voltage according to the target gray scale, and driving the target pixel cell based on the target driving voltage.

Display panel driving method, driving apparatus, and display apparatus

A display panel includes a plurality of sub-pixels, where each sub-pixel is correspondingly provided with a drive circuit. The drive circuit includes a light emitting assembly and a storage capacitor. The power-on method of the display panel includes: acquiring a power-on signal, and generating a first initialization instruction, a second initialization instruction and a display instruction according to the power-on signal; initializing the storage capacitor according to the first initialization instruction; initializing the light emitting assembly according to the second initialization instruction after initializing the storage capacitor, and at least providing preset gray-scale voltages for the light emitting assembly, so as to perform a preheating startup on the light emitting assembly; and controlling the light emitting assembly to display normally according to the display instruction after initializing the light emitting assembly.

Power-on method of display panel and display panel

A pixel drive circuit, a resistance compensation method and a display panel are disclosed, wherein the compensation circuit in the pixel drive circuit is configured to compensate the resistance from the data line to the control end of the drive switch, so that the resistance of the data line to the control end of the drive switch in different pixel rows tend to be consistent, thus the efficiency of the same data line when charging the pixels in the pixel row at the far end is consistent with the efficiency at the near end.

Pixel drive circuit, resistance compensation method and display panel

A common voltage driving circuit, a display device, and an electronic device are provided. The common voltage driving circuit includes multiple scan lines and multiple common-voltage signal lines, and further includes multiple common electrode units arranged in an array. The multiple scan lines extend in a first direction and are arranged at intervals in sequence in a second direction perpendicular to the first direction. The multiple common-voltage signal lines extend in the second direction and are arranged at intervals in sequence in the first direction. The multiple common electrode units are disposed at intersections of the multiple scan lines and the multiple common-voltage signal lines respectively. Common electrode units in a same column are all electrically coupled with a same common-voltage signal line. Common electrode units in a same row are all electrically coupled with a same second scan line.

Common voltage driving circuit, display device, and electronic device

A display panel and a drive circuit of the same are provided. The drive circuit includes multiple drive circuit rows. Each of the drive circuit rows includes multiple pixel drive circuits and a signal processing circuit. According to the drive circuit, a signal processing circuit can obtain a drive signal by processing a scan signal and a light-emitting control signal of a drive circuit row to which the signal processing circuit belongs, and can output the drive signal to each pixel drive circuit in the drive circuit row to which the signal processing circuit belongs; a pixel drive circuit can form a capacitor-reset loop by multiplexing a first switch tube in a light-emitting element reset loop of the pixel drive circuit, a second switch tube in a data-writing loop of the pixel drive circuit, and a third switch tube in a light-emitting loop of the pixel drive circuit.

Growing community of inventors

Guangdong, China

Yuanping Zhang