发光器件和显示基板
By setting an electron blocking layer in the OLED light-emitting device and adjusting the thickness ratio and distance between the light-emitting part and the blocking part of different colors, the color crosstalk problem in the tandem light-emitting device was solved, and the display effect was improved.
CN118450737BActive 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
- 2024-04-30
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In existing OLED display technologies, especially tandem light-emitting devices, there is a color crosstalk problem, which leads to inaccurate color display.
Method used
An electron blocking layer is incorporated into the light-emitting device. By adjusting the thickness ratio and distance between the light-emitting part and the blocking part of different colors, each color light-emitting part can be ensured to work independently, thus preventing lateral charge diffusion.
Benefits of technology
It effectively reduces crosstalk between different colors of light, improving the color accuracy and display effect of OLED displays.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN118450737B_ABST
Abstract
本公开提供了一种发光器件和显示基板。本公开提供的发光器件包括：相对的第一电极层和第二电极层，以及位于第一电极层与第二电极层之间的至少一个发光结构层。发光结构层包括发光层和位于发光层靠近第二电极层一侧的电子阻挡层。其中，发光层包括发射第一颜色光的第一发光部和发射第二颜色光的至少一个第二发光部。第二电极层包括与第一发光部相对的第一电极和与第二发光部相对的第二电极。电子阻挡层包括与第一发光部相对的第一阻挡部和与第二发光部相对的第二阻挡部。所述第一阻挡部的厚度小于所述第二阻挡部的厚度。本公开能够改善发光器件中的色彩串扰问题。
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