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:
Jan. 18, 2022
Filed:
Jun. 16, 2017
Sumitomo Chemical Company, Limited, Tokyo, JP;
Toshiaki Sasada, Tsukuba, JP;
Takakazu Saito, Tsukuba, JP;
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Abstract
A light emitting device having excellent external quantum efficiency contains an anode, a cathode, and two organic layers between the anode and cathode. The first organic layer contains a fluorescent low-molecular weight compound, and the second organic layer contains a cross-linked body of a cross-linkable polymer compound containing a unit having a group obtained from a metal complex represented by the formula (1), a cross-linkable constitutional unit having a cross-linkable group, and an aromatic amine constitutional unit: In formula (1), M represents a palladium atom, nrepresents an integer of 1 or more, nrepresents an integer of 0 or more, Eand Erepresent a carbon atom, Ring Lrepresents an aromatic hetero ring, Ring Lrepresents an aromatic hydrocarbon ring or an aromatic hetero ring, and A-G-Arepresents an anionic bidentate ligand.