Display panel, method for manufacturing display panel, and display device

By setting a crack detection signal line on the side of the encapsulation layer away from the barrier dam and bridging it with the barrier dam through a connecting through-hole, the problem of signal line breakage during the encapsulation process is solved, improving the accuracy of crack detection and the reliability of encapsulation.

CN119997737BActive Publication Date: 2026-07-03HKC CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HKC CORP LTD
Filing Date
2025-01-02
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

During the packaging process of the display panel, the formation of an undercut structure or a semi-empty package structure at the barrier can cause the crack detection signal line to break, affecting the detection accuracy and packaging reliability.

Method used

A crack detection signal line is set on the side of the encapsulation layer away from the barrier dam body, and connected to the barrier dam body through a connecting through hole to form a bridging structure, so as to avoid the signal line breaking when crossing the barrier dam body and ensure the effective connection between the signal line and the sensor.

Benefits of technology

It improves the accuracy of crack detection, ensures the reliability of the overall packaging, avoids the problem of broken signal lines, and enhances the accuracy of detection.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN119997737B_ABST
    Figure CN119997737B_ABST
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Abstract

The application discloses a display panel, a preparation method of the display panel and a display device, and relates to the technical field of display. The display panel comprises a substrate, a display unit, a barrier dam body, an encapsulation layer and a crack detection signal line. The substrate is divided into a display area and an encapsulation area. The display unit is arranged in the display area. The encapsulation layer covers the display unit and the encapsulation area. The barrier dam body is arranged between the encapsulation layer and the substrate. The crack detection signal line is arranged on the side, away from the barrier dam body, of the encapsulation layer and surrounds the encapsulation area. A connecting through hole is arranged on the encapsulation layer and corresponds to the barrier dam body. The crack detection signal line is connected with a connecting line of a signal end of a crack detection sensor through the connecting through hole and the barrier dam body. The application avoids the problem of disconnection of the crack detection signal line, and improves the crack detection accuracy.
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