Display panel and method for manufacturing a display panel

JP2026508869APending Publication Date: 2026-03-13HKC CORP LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-06-02
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

The formation of cavities in the lower-side region of the shelter structure during OLED manufacturing using photolithography technology leads to stress accumulation, resulting in cracks and display defects such as dark spots and black spots due to water vapor intrusion.

Method used

The display panel design includes a base substrate with a drive layer, an anode layer, a light-emitting layer, a cathode layer, and a sealing layer, featuring a pixel definition unit with a downwardly concave slope and controlled dimensions to reduce the overlap and connection of sealing film layers, thereby minimizing cavity formation and display defects.

Benefits of technology

The design reduces the occurrence of display defects by minimizing the overlap and connection of sealing film layers, enhancing the manufacturing process and improving the panel's bending and curvature capabilities.

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    Figure 2026508869000001_ABST
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Abstract

This application provides a display panel and a method for manufacturing a display panel, relating to the display technology, the display panel includes a base substrate (10) installed from bottom to top, a drive layer (20), an anode layer (30), an emissive layer (40), a cathode layer (50), and a sealing layer (60), the anode layer (30) includes a plurality of anode units installed at intervals, the pixel definition layer is installed surrounding each anode unit, the pixel definition layer includes a plurality of pixel definition units (70), and between adjacent anode units Each of the pixel definition units (70) is fitted with a pixel definition unit (70), a conductive unit (80) is fitted to the pixel definition unit (70), and a canopy structure (90) is fitted to the conductive unit (80). The light-emitting layer (40) covers each anode unit and each pixel definition unit (70), the cathode layer (50) covers the light-emitting layer (40), and the sealing layer (60) covers the cathode layer (50), each conductive unit (80), and each canopy structure (90). The side surface of the pixel definition unit (70) is a downwardly concave slope. The technology provided in this application can reduce the formation of cavities in the lower side region of the canopy structure when manufacturing an OLED using photolithography technology.
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