Pixel circuit, display panel and display device comprising the same
By introducing diodes and switching transistors into the pixel circuit of the touch display device, electrical interference between the pixels and the touch sensor is reduced, the problem of increased noise is solved, touch sensitivity and accuracy are improved, and power consumption is reduced.
CN122290486APending Publication Date: 2026-06-26LG DISPLAY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- LG DISPLAY CO LTD
- Filing Date
- 2025-11-06
- Publication Date
- 2026-06-26
AI Technical Summary
Technical Problem
In touch display devices, electrical interference between the pixel circuit and the touch sensor circuit increases noise in the touch sensor signal, affecting touch sensitivity and accuracy.
Method used
A pixel circuit is designed, including a light-emitting element, a compensation circuit, a diode and a switching transistor connected in series. By placing the diode and the switching transistor between the anode electrode of the light-emitting element and the constant voltage node, electrical interference is reduced, and a specific timing driving method is used to reduce noise.
Benefits of technology
It reduces noise in the touch sensor, improves touch sensitivity and accuracy, and reduces power consumption of the display device.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122290486A_ABST
Abstract
A pixel circuit and a display panel and display device including the pixel circuit are disclosed. The pixel circuit includes: a light-emitting element; a compensation circuit configured to supply current to the light-emitting element; and a diode and a switching transistor connected in series between the anode of the light-emitting element and a constant voltage node to which an anode reset voltage is applied. When the diode and the switching transistor are turned on, the voltage at the anode is reset to the anode reset voltage.
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