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:
Sep. 09, 2025
Filed:
Feb. 14, 2025
Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd., Hebei, CN;
Zaihao Zheng, Hebei, CN;
Pengjun Bu, Hebei, CN;
Shiwen Yue, Hebei, CN;
Zhicheng Cao, Hebei, CN;
Zenglin Zhang, Hebei, CN;
Abstract
The present invention discloses a blue luminescent composition and an organic electroluminescent device comprising the blue luminescent composition. The blue luminescent composition comprises a host material with a general structural formula as represented by Formula I and a guest material with a general structural formula as represented by Formula II. In the present invention, a composition composed by rational combination of a compound containing a dibenzofuran group and deuterium-substituted anthracene as a host material and a compound containing a cycloalkyl group and a steric hindrance group such as thiophene as a guest material is capable of significantly enhancing the stability and lifetime of a blue-light organic electroluminescent device while enhancing the electron migration and transfer efficiency and eliminating a host luminescence phenomenon.