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. 28, 2024
Filed:
May. 30, 2023
Hodogaya Chemical Co., Ltd., Tokyo, JP;
Kouki Kase, Tokyo, JP;
Takeshi Yamamoto, Tokyo, JP;
Kazuyuki Suruga, Tokyo, JP;
Shunji Mochizuki, Tokyo, JP;
Shuichi Hayashi, Tokyo, JP;
HODOGAYA CHEMICAL CO., LTD., Tokyo, JP;
Abstract
The present disclosure is related to an organic EL element including a capping layer that contains a compound represented by formula (A-1). In the formula, A and X are monovalent groups represented by formula (B-1) having 1 binding site among Rto R. Z represents a monovalent group represented by formula (B-1) having 1 binding site among Rto R, an aromatic hydrocarbon group, an aromatic heterocyclic group or a fused polycyclic aromatic group. Ar is a single bond or a divalent group of an aromatic hydrocarbon group, an aromatic heterocyclic group, or a fused polycyclic aromatic group. Rto Rare each defined in the specification, and Q represents a nitrogen atom, an oxygen atom, or a sulfur atom.