Display panel
By introducing raised structures and groove designs into the display panel, the leakage current path is extended and the leakage current is isolated, thus solving the problem of light leakage caused by current crosstalk in OLED devices and improving the display effect of the display panel.
CN122138586APending Publication Date: 2026-06-02WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO LTD
- Filing Date
- 2026-02-11
- Publication Date
- 2026-06-02
AI Technical Summary
Technical Problem
In dual-layer tandem OLED devices, current crosstalk caused by differences in light-emitting structures can lead to the problem of pixels that do not need to emit light being lit up, resulting in "stealing" of light.
Method used
By introducing a raised structure into the display panel, and setting grooves and partition slots on the dam, the transmission path of leakage current is extended and the leakage current between adjacent pixels is isolated, thereby reducing the probability of unauthorized illumination.
Benefits of technology
It effectively reduces the phenomenon of light leakage in the display panel caused by leakage current, and improves the display quality of the display panel.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122138586A_ABST
Abstract
This application discloses a display panel to reduce the probability of light-emitting pixels emitting light illegally due to leakage current. The display panel includes a driving substrate, a pixel definition layer, a light-emitting functional layer, and one or more raised structures. The driving substrate includes a substrate and a driving circuit layer. The substrate has a first surface, and the driving circuit layer is located on the first surface. The pixel definition layer is located on the side of the driving circuit layer opposite to the substrate, including a dam and having a pixel opening. The dam is disposed around the pixel opening, including a second surface opposite to the driving substrate and having a groove, the groove being recessed from the second surface toward the driving substrate. The light-emitting functional layer is located in the pixel opening, in the groove, and on the second surface. One or more raised structures are located on the side of the dam opposite to the driving substrate. One raised structure includes a bottom surface and a side surface and has a partition groove, the bottom surface being located on the second surface and connected to the side surface. The partition groove is recessed from the side surface toward the interior of the raised structure and disconnects at least a portion of the light-emitting functional layer.
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