Display panel, display device and manufacturing method of display panel

The OLED display panel design addresses cutting and damage issues by incorporating blocking grooves and multiple packaging layers, reducing film thickness and crack formation, thereby improving manufacturing ease and reliability while minimizing water and oxygen intrusion.

KR102993250B1Active Publication Date: 2026-07-21HEFEI VISIONOX TECH CO LTD +1
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Patent Information

Application Number
KR1020240101485
Authority / Receiving Office
KR · KR
Patent Type
Patents
Current Assignee / Owner
Priority Date
2024-05-21
Filing Date
2024-07-31
Publication Date
2026-07-21
Estimated Expiration
2044-07-31

AI Technical Summary

Technical Problem

The performance of current OLED display products needs to be improved, particularly in terms of preventing cutting and damage during manufacturing, and addressing issues related to water and oxygen intrusion.

Method used

The display panel design includes a substrate with a pixel defining layer, a light-emitting layer, and an inorganic packaging layer, featuring blocking grooves and holes to prevent cutting and damage, along with multiple packaging layers and isolation structures to reduce film thickness and minimize crack formation, thereby enhancing manufacturing ease and reliability.

Benefits of technology

The design reduces the difficulty of cutting the display panel, prevents cracks, and improves the packaging performance, ensuring better light emission reliability and reducing water and oxygen intrusion, thus enhancing the overall performance of OLED displays.

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Abstract

The present application discloses a display panel, a display device, and a method for manufacturing a display panel, wherein the display panel comprises a display area, a hole area, and a transition area located between the display area and the hole area, and the display panel further comprises a substrate, a pixel defining layer, a light-emitting layer, and an inorganic packaging layer, wherein the pixel defining layer is located on one side of the substrate, and the pixel defining layer includes a pixel limiting portion, and the pixel limiting portion is surrounded to form a pixel opening; the light-emitting layer includes a light-emitting unit located within the pixel opening; the inorganic packaging layer is located on one side facing away from the substrate of the light-emitting unit, and the inorganic packaging layer includes a hole that prevents cutting and damage, and the orthographic projection of the hole area on the substrate is located within the orthographic projection of the hole that prevents cutting and damage on the substrate.
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Citation Information

Patent Citations

  • Display apparatus having a substrate hole

    KR1020220093952A

  • Display substrate and manufacturing method thereof

    JP2022524561A

  • Electroluminesence display having a through-hole in display area

    KR1020200067576A

  • Display device

    KR1020200073549A