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:
Nov. 03, 2009
Filed:
Mar. 26, 2004
Hiroshi Kanno, Osaka, JP;
Noriyuki Matsusue, Hirakata, JP;
Kaori Saito, Moriguchi, JP;
Yuji Hamada, Nara, JP;
Hiroshi Kanno, Osaka, JP;
Noriyuki Matsusue, Hirakata, JP;
Kaori Saito, Moriguchi, JP;
Yuji Hamada, Nara, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A hole injection layer, a hole transport layer, a blue light emitting layer, an orange light emitting layer, an electron transport layer, an electron injection layer, and a cathode are formed in this order on an anode. The blue light emitting layer is composed of a host material doped with an assisting dopant and a luminescent dopant emitting blue light. A material used for the hole transport layer is used for the assisting dopant. The orange light emitting layer is composed of a host material doped with a luminescent dopant emitting orange light.