驱动背板及制作方法、显示面板、显示装置
By setting a light-shielding structure in the driving backplane of the OLED display device, the problem of TFT being affected by light is solved, the stability and display effect of TFT are improved, and the requirements of narrow bezel technology are met.
CN115995469BActive Publication Date: 2026-07-17BOE TECHNOLOGY GROUP CO LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BOE TECHNOLOGY GROUP CO LTD
- Filing Date
- 2022-12-14
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In existing OLED display devices, the TFTs driving the backplane are affected by light, leading to unstable performance and impacting the display effect.
Method used
Light-shielding structures are respectively provided in the first and second circuit layers of the driving backplane to block light incident from the substrate side and protect the active layer of the TFT, especially the TFT in the second circuit layer.
Benefits of technology
It improves the performance stability of TFTs, enhances the display effect of display devices, and meets the requirements of narrow bezel technology.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN115995469B_ABST
Abstract
本公开实施例提供了一种驱动背板及其制作方法、显示面板、显示装置，属于显示技术领域。该驱动背板包括衬底基板和依次层叠在衬底基板的承载面上的第一遮光结构、第一薄膜晶体管、第二遮光结构和第二薄膜晶体管。第一遮光结构位于第一薄膜晶体管的靠近衬底基板的一侧，且第一薄膜晶体管的有源层在承载面上的正投影位于第一遮光结构在承载面上的正投影内；第二遮光结构位于第二薄膜晶体管的靠近所述衬底基板的一侧，且第二薄膜晶体管的有源层在承载面上的正投影位于第二遮光结构在承载面上的正投影内。本公开实施例可以改善驱动背板中薄膜晶体管受光照影响导致性能不稳定的问题。
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