Display panel

CN120390540APending Publication Date: 2025-07-29WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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Patent Information

Application Number
CN202510479949.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2025-07-29

AI Technical Summary

Technical Problem

In the prior art, in the OLED display panel, the solvent drying rate in the edge area is fast, resulting in uneven film formation. Auxiliary pixels need to be set to ensure film formation uniformity, but this increases the frame width, which is not conducive to narrow frame design.

Method used

Ink storage grooves of a plurality of first sub-troughs and second sub-troughs alternately connected in the non-display area are provided to form a plurality of repeated bending sections, increase the ink storage amount, improve the uniformity of the solvent volatile atmosphere, and reduce the width of the non-display area.

Benefits of technology

The film formation uniformity of the light emitting part is improved, and the frame width of the display panel is reduced, which is conducive to narrow frameization.

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    Figure CN120390540A_ABST
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Abstract

According to the display panel, a pixel definition layer comprises a first retaining wall and a second retaining wall which are arranged in a non-display area, the first retaining wall and the second retaining wall extend along the side edge of a display area, and the second retaining wall is located on the side, away from the display area, of the first retaining wall; an ink storage groove located between the first retaining wall and the second retaining wall is formed in the pixel definition layer, and a plurality of pixel openings located in the display area are formed in the pixel definition layer; the light-emitting layer comprises a plurality of light-emitting parts arranged in the plurality of pixel openings; wherein the ink storage tank comprises a plurality of first sub-tanks and a plurality of second sub-tanks which are alternately connected, a first connecting line is arranged between the two opposite ends of each first sub-tank, a second connecting line is arranged between the two opposite ends of each second sub-tank, and the extending direction of the first connecting line is crossed with the extending direction of the second connecting line; the uniformity of the solvent volatilization atmosphere can be improved, and then the film forming uniformity of the light-emitting part can be improved; in addition, the width of the non-display area can be reduced, and the bezel narrowing of the display panel is facilitated.
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Citation Information

Cited By

  • Display panel and display device

    CN121001529A