organic elements

TWI940627BActive Publication Date: 2026-10-01DAI NIPPON PRINTING CO LTD
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Patent Information

Application Number
TW111122969
Authority / Receiving Office
TW · TW
Patent Type
Patents
Current Assignee / Owner
Priority Date
2022-06-10
Filing Date
2022-06-21
Publication Date
2026-10-01
Estimated Expiration
2042-06-20

AI Technical Summary

Technical Problem

The challenge in organic EL display devices is achieving a balance between low cathode resistance and high light transmittance, as larger cathodes typically have lower resistance but lower light transmittance.

Method used

The organic device is designed with a first display region having a high density of organic layer and a second display region with a lower density, featuring a wide-area electrode without gaps in the first region and multiple electrodes connected to the organic layer in the second region, along with a mask group using multiple masks for precise electrode formation.

Benefits of technology

This design improves light transmittance while maintaining electrical conductivity, enhancing the performance of organic EL display devices.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The organic element of the present invention may include a substrate, a first electrode located on the substrate, an organic layer located on the first electrode, and a second electrode located on the organic layer. When viewed along the normal direction of the substrate, the organic element may have a display area including a first display area and a second display area. The first display area may include an organic layer distributed with a first density. The second display area may include an organic layer distributed with a second density less than the first density. The second electrode may have a wide-area electrode extending without gaps in the first display area, and two or more electrode lines including ends connected to the wide-area electrode and overlapping the organic layer in the second display area.
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Citation Information

Patent Citations

  • Display screen and display device

    CN108269840A

  • Display device, manufacturing apparatus and method thereof, mask assembly, and manufacturing method thereof

    CN112825326A

  • Display apparatus, and apparatus for and method of manufacturing the same

    US20210020704A1