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. 29, 2011
Filed:
Feb. 11, 2009
Yuichi Ishida, Kanagawa, JP;
Kazuaki Yazawa, Tokyo, JP;
Norikazu Nakayama, Saitama, JP;
Sony Corporation, Tokyo, JP;
Abstract
Disclosed is a light-emitting device. The light-emitting device includes an EL layer and a heat dissipation layer. The EL layer includes a first semiconductor layer, a second semiconductor layer, and an active layer, the first semiconductor layer having a first conductivity type that is one of n type and p type, the second semiconductor layer having a second conductivity type that is opposite to the first conductivity type, the active layer being provided between the first semiconductor layer and the second semiconductor layer. The heat dissipation layer has the first conductivity type and is bonded to a side of the EL layer closer to the second semiconductor layer than the first semiconductor layer.