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:
Apr. 30, 2019
Filed:
May. 09, 2012
Toshiki Matsumoto, Tokyo, JP;
Tadahiko Yoshinaga, Tokyo, JP;
Tomoki Kato, Sodegaura, JP;
Tetsuya Inoue, Sodegaura, JP;
Mitsunori Ito, Sodegaura, JP;
Kei Yoshida, Sodegaura, JP;
Kiyoshi Ikeda, Sodegaura, JP;
Mitsuru Eida, Sodegaura, JP;
Toshiki Matsumoto, Tokyo, JP;
Tadahiko Yoshinaga, Tokyo, JP;
Tomoki Kato, Sodegaura, JP;
Tetsuya Inoue, Sodegaura, JP;
Mitsunori Ito, Sodegaura, JP;
Kei Yoshida, Sodegaura, JP;
Kiyoshi Ikeda, Sodegaura, JP;
Mitsuru Eida, Sodegaura, JP;
IDEMITSU KOSAN CO., LTD., Tokyo, JP;
JOLED INC., Tokyo, JP;
Abstract
An organic EL multi-color emitting device including a substrate, and a first light-emitting element and a second light-emitting element arranged on the surface of the substrate; the first light-emitting element including, between an anode and a cathode, a first organic layer, a second organic layer and a third organic layer in this sequence in a direction perpendicular to the surface of the substrate; the second light-emitting element including, between an anode and a cathode, a second organic layer and a third organic layer in this sequence in a direction perpendicular to the surface of the substrate; the first organic layer including a first light-emitting dopant; the third organic layer including a second light-emitting dopant; the second organic layer including any of (A) a compound including an arylamine site, and a furan site or a thiophene site, (B) a compound including an arylamine site and a site comprising a nitrogen-containing six-membered ring structure, (C) a compound including a carbazole site, and a furan site or a thiophene site, and (D) a compound including a carbazole site and a site including a nitrogen-containing six-membered ring structure.