A transparent light emitting device

By providing parallel auxiliary electrodes on the transparent scanning electrode surface of the transparent OLED light emitting device, the resistance is reduced and the brightness uniformity is improved, and the problem of poor brightness uniformity caused by the large resistance of the transparent scanning electrode is solved.

CN119767986APending Publication Date: 2025-04-04GUAN YEOLIGHT TECH CO LTD
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Patent Information

Application Number
CN202411987277.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-04-04

AI Technical Summary

Technical Problem

The transparent scanning electrode has a large resistance, resulting in poor brightness uniformity of transparent OLED light emitting devices.

Method used

An auxiliary electrode is provided on the surface of the transparent scanning electrode, so that the auxiliary electrode and the transparent scanning electrode are connected in parallel, and the resistance after parallel connection is smaller than the resistance of the transparent scanning electrode. At the same time, the width of the overlap region between the auxiliary electrode and the transparent scanning electrode on the vertical projection of the substrate and the transparent scanning electrode is smaller than the width of the transparent scanning electrode.

Benefits of technology

The voltage drop of the driving signal transmitted on the transparent scanning electrode is reduced, the light emission uniformity of the light emitting device is improved, and the auxiliary electrode affects the light output of the transparent scanning electrode is avoided.

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Abstract

The present invention discloses a transparent light-emitting device, comprising: a light-emitting function layer is arranged on a side of a transparent scanning electrode away from a substrate, a transparent signal electrode is arranged on a side of the light-emitting function layer away from the substrate, an auxiliary electrode corresponds to the transparent scanning electrode one by one, and each auxiliary electrode is arranged on a surface of a substrate adjacent to its corresponding transparent scanning electrode; a plurality of transparent scanning electrodes are arranged in sequence along a first direction, each transparent scanning electrode extends along a second direction, a plurality of transparent signal electrodes are arranged in sequence along the second direction, each transparent signal electrode extends along the first direction, and the first direction and the second direction intersect each other; a vertical projection of the auxiliary electrode on the substrate and a vertical projection of the transparent scanning electrode on the substrate have an overlapping area; along the first direction, the width of the overlapping area is less than the width of the transparent scanning electrode. The embodiment of the present invention can reduce the resistance of the transparent scanning electrode and improve the brightness uniformity of the light-emitting device.
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