Light emitting element and amine compound for light emitting element

By using amine compounds with specific structures as hole transport materials in organic electroluminescent display devices, the problems of high driving voltage, low luminous efficiency, and short lifespan have been solved, resulting in high-efficiency and long-life light-emitting elements.

CN114380807BActive Publication Date: 2026-07-07SAMSUNG DISPLAY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SAMSUNG DISPLAY CO LTD
Filing Date
2021-08-13
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing organic electroluminescent display devices suffer from problems such as high driving voltage, low luminous efficiency, and short lifespan, making it difficult to stably achieve low driving voltage, high luminous efficiency, and long lifespan.

Method used

Amine compounds with specific structures are used as hole transport materials, including forming hole transport regions and electron transport regions in light-emitting elements. The specific structure is composed of amine compounds represented by chemical formula 1, which is used to improve luminous efficiency and extend the life of the element.

Benefits of technology

It achieves high efficiency and long lifespan characteristics of light-emitting elements, improving luminous efficiency and extending element lifespan.

✦ Generated by Eureka AI based on patent content.

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Abstract

Disclosed are a light-emitting element and an amine compound for a light-emitting element. A light-emitting element of one embodiment includes a first electrode; a second electrode; and at least one functional layer arranged between the first electrode and the second electrode, in which excellent emission efficiency and improved lifetime characteristics can be exhibited by including an amine compound represented by the following Chemical Formula 1 in the functional layer.[Chemical Formula 1]
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