像素电路、驱动方法和显示装置
By introducing multi-stage control and forward bias technology into the pixel circuit of OLED displays, the problems of uneven display and image retention caused by differences in the characteristics of driving transistors have been solved, resulting in better display effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HEFEI BOE ZHUOYIN TECH CO LTD
- Filing Date
- 2024-04-24
- Publication Date
- 2026-07-17
AI Technical Summary
The existing 3T1C external compensation pixel circuit in OLED displays suffers from poor display uniformity and even image retention problems due to differences in the characteristics of the driving transistors.
A pixel circuit structure is adopted, including a light-emitting element, a driving circuit, an external compensation control circuit, a control circuit, and a data writing circuit. By setting multiple effective level stages and corresponding scanning signal control, the forward bias voltage of the driving transistor is realized, eliminating the hysteresis phenomenon, and the stress of the driving transistor is restored through the bias stage.
The hysteresis of the driving transistor in the driving circuit has been improved, eliminating the image retention problem in the display panel and improving display uniformity.
Smart Images
Figure CN118262667B_ABST