A host compound, an organic electroluminescent material containing a double host, and an organic electroluminescent device

By using host compounds with specific structures and dual host materials, the materials and structure of organic electroluminescent devices were optimized, solving the problems of low luminous efficiency, short lifetime, and poor stability, and achieving efficient and stable organic electroluminescence effects.

CN122145445APending Publication Date: 2026-06-05JILIN OPTICAL & ELECTRONICS MATERIALS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JILIN OPTICAL & ELECTRONICS MATERIALS CO LTD
Filing Date
2026-01-12
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing organic electroluminescent devices suffer from low luminous efficiency, short lifespan, poor stability, complex manufacturing processes, and high costs. In particular, in dual-host systems, it is crucial to improve exciton formation efficiency and material stability, reduce driving voltage, and optimize manufacturing processes.

Method used

By employing host compounds with specific structures and dual-host organic electroluminescent materials, including compounds with triarylamine and triazine structures, and by rationally matching material energy levels and conjugated structures, the device structure can be optimized, the driving voltage reduced, and the carrier transport performance improved.

Benefits of technology

This technology achieves high-efficiency light emission, extended lifespan, reduced driving voltage, and improved stability of the device, while also enhancing the thermal stability and film-forming properties of the material, making it suitable for large-scale production.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122145445A_ABST
    Figure CN122145445A_ABST
Patent Text Reader

Abstract

The application provides a host compound, an organic electroluminescent material containing double hosts and an organic electroluminescent device, and belongs to the field of organic electroluminescent materials, wherein the host compound is a compound having a structure shown in general formula 1-1 or general formula 1-2, the organic electroluminescent material containing double hosts comprises a first host material and a second host material, the first host material is the host compound having a structure shown in general formula 1-1 or general formula 1-2, and the second host material is a compound having a structure shown in general formula (2). The host compound or the organic electroluminescent material containing double hosts is applied to the organic electroluminescent device, so that the driving voltage is reduced, the luminous efficiency is provided, and the service life is prolonged.
Need to check novelty before this filing date? Find Prior Art