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:
Jun. 23, 2015
Filed:
Jul. 15, 2011
Ryuuta Yamada, Kyoto, JP;
Satoru Ohuchi, Osaka, JP;
Takahiro Komatsu, Osaka, JP;
Shinya Fujimura, Osaka, JP;
Hirofumi Fujita, Ehime, JP;
Ryuuta Yamada, Kyoto, JP;
Satoru Ohuchi, Osaka, JP;
Takahiro Komatsu, Osaka, JP;
Shinya Fujimura, Osaka, JP;
Hirofumi Fujita, Ehime, JP;
JOLED INC., Tokyo, JP;
Abstract
Method for manufacturing organic EL element including anode, hole injection layer, buffer layer, light-emitting layer, and cathode, layered on substrate in the stated order, and banks defining a light-emission region, and having excellent light-emission characteristics, due to the hole injection layer having excellent hole injection efficiency, being a tungsten oxide layer including an oxygen vacancy structure, formed under predetermined conditions to have an occupied energy level within a binding energy range from 1.8 eV to 3.6 eV lower than a lowest binding energy of a valence band, and after formation, subjected to atmospheric firing at a temperature within 200° C.-230° C. inclusive for a processing time of 15-45 minutes inclusive to have increased film density and improved dissolution resistance against an etching solution, a cleaning liquid, etc., used in a bank forming process.