Display panel and display device

By adopting a touch lead design with different metal layers in the OLED display device, the peeling problem of the organic insulating layer in the bonding area is solved, and the yield and reliability of the display product are improved.

CN115241242BActive Publication Date: 2025-09-12BOE TECHNOLOGY GROUP CO LTD +1
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Patent Information

Application Number
CN202210723269.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-06-23
Publication Date
2025-09-12
Estimated Expiration
2042-06-23

AI Technical Summary

Technical Problem

In OLED display devices, the organic insulating layer of the touch structure has weak adhesion, and peeling is prone to occur in the bonding area, affecting the yield of the display product.

Method used

The first lead of the touch lead located in the bending area is routed using the second metal layer, and the second lead located in the binding area is routed using the third metal layer, avoiding the presence of organic insulating layers in the binding area and the bending area, thereby preventing peeling in a high temperature environment.

Benefits of technology

The yield of display products is improved, peeling of the organic insulating layer in a high-temperature environment is avoided, and the reliability of the binding area and the bending area is enhanced.

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Abstract

Embodiments of the present invention disclose a display panel and display device. By routing the first touch lead in the bend region using the second metal layer and the second touch lead in the bonding region using the third metal layer, neither the bonding region nor the bend region has a touch structure, and thus no organic insulating layer that is sensitive to high temperatures. This allows the organic insulating layer in the bonding and bend regions to be removed by creating large grooves and removing large areas without affecting the connection of the touch leads. Consequently, during the bonding process in the bonding region, peeling of the organic insulating layer due to high temperatures can be avoided, thereby improving the yield of the display product.
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