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.

Date of Patent:
Sep. 21, 2010

Filed:

Sep. 02, 2005
Applicants:

Shun-ichi Ishikawa, Kanagawa, JP;

Yoshitaka Kitamura, Kanagawa, JP;

Sanpei Iida, Kanagawa, JP;

Takayuki Fujiwara, Kanagawa, JP;

Inventors:

Shun-ichi Ishikawa, Kanagawa, JP;

Yoshitaka Kitamura, Kanagawa, JP;

Sanpei Iida, Kanagawa, JP;

Takayuki Fujiwara, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); H01L 51/52 (2006.01); G02B 5/02 (2006.01); G02B 13/20 (2006.01); F21V 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed is an organic electroluminescent device comprising a first electrode, a second electrode, at least one organic layer containing a luminescent layer and disposed between the first electrode and the second electrode, a transparent substrate and a prism structure disposed between the first electrode or the second electrode and the transparent substrate, wherein the prism structure is disposed such that the apexes of the prisms face the transparent substrate side and the coefficient of variation in the pitch of the apexes of the prisms is 1% or more.


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