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:
Sep. 09, 2014
Filed:
Jan. 18, 2012
Takahiro Komatsu, Osaka, JP;
Satoru Ohuchi, Osaka, JP;
Ryuuta Yamada, Kyoto, JP;
Hirofumi Fujita, Ehime, JP;
Shinya Fujimura, Osaka, JP;
Seiji Nishiyama, Osaka, JP;
Kenichi Nendai, Hyogo, JP;
Kou Sugano, Hyogo, JP;
Shuhei Yada, Osaka, JP;
Takahiro Komatsu, Osaka, JP;
Satoru Ohuchi, Osaka, JP;
Ryuuta Yamada, Kyoto, JP;
Hirofumi Fujita, Ehime, JP;
Shinya Fujimura, Osaka, JP;
Seiji Nishiyama, Osaka, JP;
Kenichi Nendai, Hyogo, JP;
Kou Sugano, Hyogo, JP;
Shuhei Yada, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The present invention provides an organic EL display panel and an organic EL display apparatus that can be driven at a low voltage and that exhibit excellent light-emitting efficiency. Sequentially fixated on a substrate are: a first electrode; auxiliary wiring; a hole injection layer; a functional layer; and a second electrode. The hole injection layer and the second electrode are both formed to be continuous above the first electrode and above the auxiliary wiring. The second electrode and the auxiliary wiring are electrically connected by the hole injection layer. The hole injection layer contains tungsten oxide and at least 2 nm thick so as to have, in an electronic state thereof, an occupied energy level in a range between 1.8 eV and 3.6 eV lower than a lowest energy level of a valence band in terms of a binding energy.