Display panel and display device

By setting openings in the sidewalls of the insulating layer to allow the second signal transmission unit to contact the second sub-layer, the problem of insufficient adhesion between the metal layer and the insulating layer is solved, thereby improving the yield rate of the display panel and the reliability of signal transmission.

CN115497961BActive Publication Date: 2026-05-29GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
Filing Date
2022-08-26
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In the array substrate of the display panel, the adhesion between the metal layer and the gate insulating layer is weak, which makes the metal layer easy to peel off at the ramp, resulting in wire breakage and affecting the yield of the display panel.

Method used

An opening is provided on the sidewall of the insulating layer, allowing the second signal transmission part to extend into the opening and contact the second sub-layer, thereby improving the adhesion between the second signal transmission part and the insulating layer. The adhesion is enhanced by using a laminated structure of silicon oxide and silicon nitride materials.

Benefits of technology

It improved the yield rate of display panels, reduced the probability of signal transmission line breakage at inclines, and enhanced the adhesion between the metal layer and the insulating layer.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN115497961B_ABST
    Figure CN115497961B_ABST
Patent Text Reader

Abstract

The application discloses a display panel and a display device. The first metal layer is arranged on the substrate and comprises a first signal transmission part; the insulating layer covers the substrate and the first metal layer, and comprises a protruding part covering the first signal transmission part; the second metal layer is arranged on the side of the insulating layer away from the first metal layer and comprises a second signal transmission part, and the second signal transmission part covers at least part of the side wall of the protruding part; the protruding part comprises a first sub-layer and a second sub-layer, and a first opening is arranged at the side wall, the first sub-layer is located on the side of the second sub-layer away from the first signal transmission part, the second signal transmission part extends into the first opening and is in contact with the second sub-layer, and the adhesion between the second sub-layer and the second signal transmission part is greater than the adhesion between the first sub-layer and the second signal transmission part. The application can reduce the probability of disconnection of the second signal transmission part at the climbing position, and improve the yield of the display panel.
Need to check novelty before this filing date? Find Prior Art