The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 2025
Filed:
Nov. 24, 2021
Changchun Hyperions Technology Co., Ltd, Changchun, CN;
Changchun Hyperions Technology Co., Ltd, Changchun, CN;
Abstract
Provided are a heterocyclic derivative and an organic electroluminescent device thereof, which relates to the field of organic photoelectric materials. The heterocyclic derivative of Formula I has high electron mobility and great hole blocking performance, and thus the organic electroluminescent device prepared by using the heterocyclic derivative as the electron transport region material, especially the hole blocking material, has low drive voltage and high luminous efficiency. The organic electroluminescent device can also include a hole transport region, and the hole transport region, especially the emissive auxiliary layer, contains the triarylamine compound of Formula II. Since the electron transport region and the hole transport region of the device can effectively balance carriers, which reduces the quenching of excitons and improves the recombination probability of carriers, the device shows low drive voltage and high luminous efficiency.
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