Display device and manufacturing method thereof

The innovative manufacturing method for OLED-based display devices, featuring overlapping sealing layers and precise etching techniques, addresses yield and reliability issues by ensuring comprehensive coverage and protection of display elements, thereby enhancing the device's performance.

TWI935718BActive Publication Date: 2026-08-11MAGNOLIA WHITE CORP
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Patent Information

Application Number
TW114110198
Authority / Receiving Office
TW · TW
Patent Type
Patents
Current Assignee / Owner
Priority Date
2024-03-19
Filing Date
2025-03-19
Publication Date
2026-08-11
Estimated Expiration
2045-03-18

AI Technical Summary

Technical Problem

Existing display devices using organic light-emitting diodes (OLEDs) face challenges in yield and reliability, necessitating improvements in manufacturing processes to enhance their performance.

Method used

The display device incorporates a specific manufacturing method involving the formation of first and second display elements, a partition, and overlapping sealing layers to improve coverage and protection, utilizing etching processes to create gaps and laminated films for enhanced sealing, thereby improving the reliability and yield of the device.

Benefits of technology

The described method enhances the yield and reliability of OLED-based display devices by ensuring comprehensive coverage and protection of the display elements, reducing defects and improving overall performance.

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Abstract

The display device of one embodiment includes a first display element, a second display element, a partition, a first sealing layer, and a second sealing layer. The first display element includes a first lower electrode, a first upper electrode, and a first organic layer. The second display element includes a second lower electrode, a second upper electrode, and a second organic layer. The partition is disposed between the first and second display elements. The first sealing layer covers the first display element. The second sealing layer covers the second display element. The first sealing layer has a first end portion located above the partition. The second sealing layer has a second end portion located above the partition. The first and second ends overlap in the thickness direction of the first and second sealing layers.
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