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:
Oct. 28, 2014
Filed:
Nov. 17, 2011
Satoru Ohuchi, Osaka, JP;
Yoshiaki Tsukamoto, Osaka, JP;
Takahiro Komatsu, Osaka, JP;
Kei Sakanoue, Fukuoka, JP;
Satoru Ohuchi, Osaka, JP;
Yoshiaki Tsukamoto, Osaka, JP;
Takahiro Komatsu, Osaka, JP;
Kei Sakanoue, Fukuoka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An organic light-emitting element includes an anode, a functional layer, and a hole injection layer between the anode and the functional layer. The functional layer contains an organic material. The hole injection layer injects holes to the functional layer. The hole injection layer comprises tungsten oxide and includes an occupied energy level that is approximately 1.8 electron volts to approximately 3.6 electron volts lower than a lowest energy level of a valence band of the hole injection layer in terms of binding energy.