Display device, light-emitting element, and production method for light-emitting element

WO2025253954A1PCT designated stage Publication Date: 2025-12-11SONY SEMICON SOLUTIONS CORP
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Patent Information

Application Number
PCT/JP2025/018868
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-06-07
Filing Date
2025-05-26
Publication Date
2025-12-11

AI Technical Summary

Technical Problem

Existing display devices face challenges in suppressing moire and improving viewing angle characteristics due to controlling the chief optical axis incidence angle, which can lead to reduced viewing angles and brightness.

Method used

A display device configuration with a first and second insulating layer arrangement between electrodes and an organic layer, where the second insulating layer covers a portion of the inner region of the first electrode, adjusting the light-emitting region shape to widen the viewing angle without controlling the optical axis incidence angle.

Benefits of technology

This configuration effectively suppresses moire and enhances viewing angle characteristics while maintaining brightness, offering improved design flexibility and reliability.

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Abstract

A display device according to an embodiment includes a display region having a plurality of light-emitting elements. Each of the plurality of light-emitting elements includes a first electrode, a second electrode facing the first electrode, an organic layer located between the first electrode and the second electrode, and a first insulating layer located between the first electrode and the organic layer and covering an outer region of the first electrode. A prescribed light-emitting element located outside the display region among the plurality of light-emitting elements further includes a second insulating layer located between the first electrode and the organic layer and covering a section of an inner region other than the outer region of the first electrode.
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Citation Information

Patent Citations

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