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. 18, 2008
Filed:
Jul. 28, 2004
Tomohisa Gotoh, Tokyo, JP;
Satoru Toguchi, Tokyo, JP;
Atsushi Kamijo, Tokyo, JP;
Yasuharu Onishi, Tokyo, JP;
Hitoshi Ishikawa, Tokyo, JP;
Junichi Yamanari, Kanagawa, JP;
Tomohisa Gotoh, Tokyo, JP;
Satoru Toguchi, Tokyo, JP;
Atsushi Kamijo, Tokyo, JP;
Yasuharu Onishi, Tokyo, JP;
Hitoshi Ishikawa, Tokyo, JP;
Junichi Yamanari, Kanagawa, JP;
Samsung SDI Co., Ltd., Suwon, KR;
Abstract
The present invention uses a substrate for an optical element comprising a light scattering unit that scatters visible light, and a light transmissive opening that transmits the visible light in a light transparent substrate transmitting the visible light, as a light extraction substrate of the organic electroluminescence element. With this, a substrate for an optical element, an organic electroluminescence element, and an organic electroluminescence display device are provided that improves the light extraction efficiency to outside of the substrate and also improves the light extraction efficiency by obtaining a high luminance organic electroluminescence element.