Polycyclic compounds and organic light-emitting elements including them

By using the polycyclic compound represented by Chemical Formula 1 in the material layer of the organic light emitting element, a specific structure is introduced to optimize molecular planarity and conjugation, the problems of improving the efficiency and lifetime of the existing organic light emitting element are solved, and higher light efficiency and lower driving voltage are achieved.

CN113260615BActive Publication Date: 2025-03-28LT MATERIALS CO LTD
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Patent Information

Application Number
CN201980086303.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2018-12-27
Filing Date
2019-12-26
Publication Date
2025-03-28
Estimated Expiration
2039-12-26

AI Technical Summary

Technical Problem

There is room for improvement in the effectiveness, life or efficiency of existing organic light emitting elements, especially in the material selection and performance optimization of material layers.

Method used

The polycyclic compound represented by Chemical Formula 1 is used as the material of the organic material layer of the organic light emitting element, and the planarity and conjugation of the molecular structure are optimized to reduce the T1 energy and driving voltage by introducing naphthobenzofuran, naphthobenzothiophene or benzocarbazole structures.

Benefits of technology

It realizes reducing the driving voltage of the component, improving the optical efficiency, and enhancing the life of the component.

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Abstract

The present specification relates to a polycyclic compound represented by Chemical Formula 1 and an organic light-emitting element including the same. When the polycyclic compound represented by Chemical Formula 1 is used in the material of the organic material layer of the organic light-emitting element, the element driving voltage can be reduced, the light efficiency can be improved, and the element life property can be enhanced. In Chemical Formula 1, the definition of each substituent is the same as that defined in the embodiment. [Chemical Formula 1]
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