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:
Oct. 22, 2013
Filed:
Apr. 28, 2009
Joji Suzuki, Yamagata, JP;
Fujio Kajikawa, Yamagata, JP;
Yasuki Kawashima, Koka, JP;
Shigeyuki Nakai, Osaka, JP;
Joji Suzuki, Yamagata, JP;
Fujio Kajikawa, Yamagata, JP;
Yasuki Kawashima, Koka, JP;
Shigeyuki Nakai, Osaka, JP;
Yamagata Promotional Organization for Industrial Technology, Yamagata-shi, Yamagata, JP;
NEC Lighting, Ltd., Tokyo, JP;
Abstract
This invention provides an organic EL light-emitting device, which can prevent the occurrence of brightness unevenness due to resistance of a transparent electrode, in a large surface light-emitting panel of an organic EL element. The organic EL light-emitting device includes an element formation substrate, on which an organic EL elementincluding an organic light-emitting layer is stacked, and a sealing substratefor sealing the organic EL element so as to accommodate the organic EL element between the element formation substrate and the sealing substrate. A sealing portionformed of an adhesive is formed in the peripheral edge portion between the element formation substrateand the sealing substrate, and a grease layeror a gel layeris accommodated in between the element formation substrate, on which the organic EL element surrounded by the sealing portion is formed, and the plate-shaped sealing substrate so as to adhere to the element formation substrate and the sealing substrate. The grease layeror the gel layercontains an oligomer or a polymer having organosiloxane bond (—RSiO—) or fluorinated polyether (—CFCFYO—) as a skeleton.