Organic compound and application thereof

By designing organic compounds with specific structures, the stability and energy level matching problems of organic electroluminescent materials were solved, resulting in low driving voltage, high luminous efficiency, and long lifetime of organic electroluminescent devices.

CN122444666APending Publication Date: 2026-07-24NINGBO LUMILAN NEW MATERIAL CO LTD
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Patent Information

Application Number
CN202510103970.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing organic electroluminescent materials have low stability and poor matching between HOMO and LUMO energy levels and adjacent energy levels, resulting in an imbalance in carrier mobility. This leads to high driving voltage, low luminous efficiency, and short lifetime in organic electroluminescent devices.

Method used

An organic compound is provided in which a core with a specific structure is connected to an aromatic amine containing a benzoxazole structure and combined with different substituents to improve the stability and hole transport performance of the compound, enhance the matching degree of HOMO and LUMO energy levels, and achieve a balance of carrier mobility.

Benefits of technology

The driving voltage, luminous efficiency, and lifetime of organic electroluminescent devices have been improved. By optimizing the structural design of organic compounds, a balance of carrier mobility has been achieved, thereby enhancing the performance of the devices.

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Abstract

The invention relates to the technical field of display, in particular to an organic compound and application thereof. According to the organic compound provided by the invention, the parent nucleus with the structure defined as the formula (1) is connected with the arylamine containing the benzoxazole structure and is matched with different substituent groups, so that the compound integrally shows relatively high stability and relatively high hole transport performance, and the matching degree of HOMO and LUMO energy levels and adjacent energy levels is relatively high; further, the carrier mobility of the organic compound with the specific structure is relatively balanced, so that the organic electroluminescent device containing the organic compound has relatively low driving voltage, relatively high luminous efficiency and relatively long service life.
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