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:
Jul. 03, 2012
Filed:
Jul. 11, 2006
Masayasu Miyata, Kawasaki, JP;
Yuji Shinohara, Suwa, JP;
Masayasu Miyata, Kawasaki, JP;
Yuji Shinohara, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A light emitting device having excellent characteristics such as light emitting efficiency and the like and electrical equipment provided with such a light emitting device and having high reliability are provided. The light emitting device includes a light emitting layerformed of a first organic semiconductor material, a hole transport layer (carrier transport layer)formed of a second organic semiconductor material and provided in contact with the light emitting layer, and particlesprovided in contact with both the light emitting layerand the hole transport layer, wherein an entire of or a part of each of the particlesis embedded in the light emitting layer (the other layer)so that the particlescan contain the second organic semiconductor material (organic semiconductor material which constitutes the other layer).