Organic electroluminescent panel

CN119744081AActive Publication Date: 2025-04-01WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202411827961.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-11
Publication Date
2025-04-01
Estimated Expiration
2044-12-11

AI Technical Summary

Technical Problem

[0003]本申请的实施例提供了一种有机电致发光面板，能够改善有机电致发光面板出现的色亮不均的问题

Benefits of technology

[0021] This application provides an organic electroluminescent panel, by placing the cover layer on a surface of the cathode layer away from the substrate, doping conductive particles in the cover layer, and setting the conductivity of the cover layer is not less than 5*10 - 4 S/m can also reduce the voltage drop of the cathode layer while ensuring the transmittance of the cathode layer. Compared with traditional solutions, it is not necessary to reduce the thickness of the cathode layer of the ultraphosphorescence organic electroluminescent panel, thereby avoiding the problem of color unevenness caused by the voltage drop of the cathode layer due to the decrease in the thickness of the cathode layer of the ultraphosphorescence organic electroluminescent panel.

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Abstract

According to the organic electroluminescence panel, a covering layer is arranged on the surface, away from a substrate, of a cathode layer, conductive particles are doped in the covering layer, the conductivity of the covering layer is set to be not smaller than 5 * 10 <-4 > S / m, the transmittance of the cathode layer is guaranteed, meanwhile, the voltage drop of the cathode layer can be reduced, and the light emitting efficiency of the organic electroluminescence panel is improved. Compared with a traditional scheme, the thickness of the cathode of the super-phosphorescence organic electroluminescent panel does not need to be reduced, so that the problem that the transverse resistance of the cathode is increased due to the fact that the thickness of the cathode of the super-phosphorescence organic electroluminescent panel is reduced, the super-phosphorescence organic electroluminescent panel has voltage drop, and color brightness is not uniform is solved.
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