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:
Mar. 26, 2013
Filed:
Apr. 01, 2011
Toshiaki Matsumoto, Kanagawa, JP;
Tomoyuki Higo, Tokyo, JP;
Tadahiko Yoshinaga, Kanagawa, JP;
Toshiaki Imai, Kanagawa, JP;
Toshiaki Matsumoto, Kanagawa, JP;
Tomoyuki Higo, Tokyo, JP;
Tadahiko Yoshinaga, Kanagawa, JP;
Toshiaki Imai, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An organic electroluminescence display unit includes: a lower electrode for each device; a first hole injection/transport layer provided on the lower electrode for each device; a second organic light emitting layer of the first color provided on the first hole injection/transport layer for the second organic electroluminescence device; a second hole injection/transport layer provided on the entire surfaces of the second organic light emitting layer and the first hole injection/transport layer for the first organic electroluminescence device, and being made of a low molecular material; a blue first organic light emitting layer provided on the entire surface of the second hole injection/transport layer; and an electron injection/transport layer having at least one of electron injection characteristics and electron transport characteristics, and an upper electrode that are provided in sequence on the entire surface of first organic light emitting layer.