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. 19, 2015
Filed:
Sep. 04, 2012
Satoru Ohuchi, Osaka, JP;
Hirofumi Fujita, Ehime, JP;
Shinya Fujimura, Osaka, JP;
Takahiro Komatsu, Osaka, JP;
Satoru Ohuchi, Osaka, JP;
Hirofumi Fujita, Ehime, JP;
Shinya Fujimura, Osaka, JP;
Takahiro Komatsu, Osaka, JP;
JOLED INC., Tokyo, JP;
Abstract
Organic EL device comprising: anode and cathode disposed to face each other with gap therebetween; functional layer that contains organic material and is disposed between the anode and the cathode; and hole injection layer that has function to inject holes into the functional layer and is disposed between the anode and the functional layer, wherein the hole injection layer is mixture layer containing first oxide and second oxide. The first oxide is p-type metal oxide, the composition of the second oxide contains element that is thermally stable in both first state where the element has the maximum valence and second state where the element has valence smaller than the maximum valence, the element being more thermally stable in the second state than in the first state. The element contained in the composition of the second oxide in the hole injection layer is in the first state.