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:
Feb. 04, 2025
Filed:
Dec. 18, 2019
Hodogaya Chemical Co., Ltd., Tokyo, JP;
Sfc Co., Ltd., Cheongju-si, KR;
Yuta Hirayama, Tokyo, JP;
Takeshi Yamamoto, Tokyo, JP;
Shunji Mochizuki, Tokyo, JP;
Shuichi Hayashi, Tokyo, JP;
Se-Jin Lee, Cheongju-si, KR;
Oun-Gyu Lee, Cheongju-si, KR;
Bong-Ki Shin, Cheongju-si, KR;
Hodogaya Chemical Co., Ltd., Tokyo, JP;
SFC CO., LTD., Cheongju-si, KR;
Abstract
The present invention provides various organic electroluminescent elements using a material for a capping layer and a material for a luminous layer, in which the material for a capping layer uses an arylamine material that exhibit excellent stability and durability in the form of a thin film, especially a specific amine compound having a high refractive index and having a high absorbance within a wavelength range from 400 nm to 410 nm in the absorption spectrum at a concentration of 10mol/L; and in which the material for a luminous layer uses a compound containing a heterocyclic compound that has a specific fused ring structure.