像素电路及驱动方法、显示面板及驱动方法、显示装置

By introducing isolation and compensation circuits into the display panel, and combining N-type and P-type transistors, the problem of gate charge leakage of the driving transistors is solved, thereby improving the resolution and response speed of the display panel.

CN117242512BActive Publication Date: 2026-07-17BOE TECHNOLOGY GROUP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BOE TECHNOLOGY GROUP CO LTD
Filing Date
2022-02-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing display panels, during the light-emitting phase, the charge on the gate of the driving transistor leaks through other transistors, affecting the display effect.

Method used

The pixel circuit structure includes a driving circuit, an isolation circuit, a compensation circuit, and a reset circuit. By controlling the signal input at different stages, leakage current is reduced. Specifically, this includes the combined use of N-type and P-type transistors, and the design of isolation and compensation circuits to reduce charge leakage.

Benefits of technology

It effectively reduces leakage current in the pixel circuit during the light-emitting stage, improves the display effect, and increases the resolution and response speed of the display panel.

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Abstract

一种像素电路及其驱动方法、显示面板及其驱动方法、显示装置,像素电路包括:驱动电路(1)、隔离电路(2)、补偿电路(3)、第一复位电路(4),驱动电路(1)连接第一节点(N1)、第二节点(N2)、第三节点(N3),用于根据第一节点(N1)的信号通过第二节点(N2)向第三节点(N3)输入驱动电流;隔离电路(2)连接第一节点(N1)、第四节点(N4)、第一栅极驱动信号端(G1),用于响应第一栅极驱动信号端(G1)的信号以连通第一节点(N1)和第四节点(N4);补偿电路(3)连接第三节点(N3)、第四节点(N4)、第二栅极驱动信号端(G2),用于响应第二栅极驱动信号端(G2)的信号以连通第三节点(N3)和第四节点(N4);第一复位电路(4)连接第四节点(N4)、第一复位信号端(Re1)、第一初始信号端(Vinit1),用于响应第一复位信号端(Re1)的信号将第一初始信号端(Vinit1)的信号传输到第四节点(N4)。像素电路在发光阶段第一节点(N1)具有较小的漏电流。
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