Display panel and display device

By redesigning the position of the via portion of the first electrode, the first groove can be set at the pixel definition layer, extending the common layer length and the lateral leakage current transmission path, the problem of lightening between sub-pixels of different colors is solved, and the display effect is improved.

CN119767963APending Publication Date: 2025-04-04HUBEI YANGTZE IND INNOVAION CENT OF ADVANCED DISPLAY CO LTD
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Patent Information

Application Number
CN202411777212.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-04-04

AI Technical Summary

Technical Problem

Due to the different lighting voltages of sub-pixels of different colors, the light is illuminated through common layers between sub-pixels of different colors, which seriously affects the display effect.

Method used

By redesigning the position of the via portion of the first electrode, the first groove can be arranged in the pixel definition layer without being affected by the via portion, thereby extending the common layer length between different pixel units, increasing the lateral leakage current transmission path, so that secret light is not easy to be achieved between different pixel units.

Benefits of technology

It effectively extends the common layer length and lateral leakage current transmission path between different pixel units, reduces the phenomenon of light-sting between sub-pixels, thereby improving the display effect.

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Abstract

The invention relates to a display panel and a display device. The display panel comprises a first electrode layer located on one side of a substrate, the first electrode layer comprises a plurality of electrode units, and each electrode unit comprises a plurality of first electrodes; the first electrode comprises a body part and a via hole part; the pixel definition layer is located on the side, away from the substrate, of the first electrode layer, and the pixel definition layer comprises a plurality of opening units and a plurality of first grooves; each opening unit corresponds to one electrode unit, each opening unit is provided with a plurality of sub-pixel openings in one-to-one correspondence with the first electrodes, each opening unit is used for arranging one pixel unit, and the sub-pixels in the pixel units and the sub-pixel openings in the opening units are arranged in one-to-one correspondence; at least one first groove is arranged around one opening unit, and the orthographic projection of the via hole part of each first electrode in the electrode unit towards the substrate is located in a space enclosed by the orthographic projection of the first groove around the corresponding opening unit towards the substrate; and secret lighting among the sub-pixels is improved.
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