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:
Jul. 05, 2011
Filed:
Aug. 28, 2007
Mitsuru Yokoyama, Takatsuki, JP;
Mitsuru Yokoyama, Takatsuki, JP;
Konica Minolta Holdings, Inc., Tokyo, JP;
Abstract
In an organic EL element, at the interface between a first electrode and a light-emitting layer, a diffraction grating with grating constants a, b, and c is provided in the form of surface irregularities on the first electrode. The grating constants are determined such that, when the effective refractive index as light experiences in the organic EL element is n, with respect to the periods d, d, and ddefining the periodicity of the diffraction grating, n×dcorresponds to a red region and n×dand n×dcorrespond to a blue to green region.
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