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:
Sep. 13, 2011
Filed:
Feb. 25, 2010
Hidemasa Hosoda, Kanagawa, JP;
Takeharu Tani, Kanagawa, JP;
Hidemasa Hosoda, Kanagawa, JP;
Takeharu Tani, Kanagawa, JP;
Fujifilm Corporation, Tokyo, JP;
Abstract
The present invention provides an organic electroluminescence display device including an organic electroluminescence element which includes a transparent electrode, a counter electrode, and an organic compound layer provided between these electrodes, the organic compound layer including a light emitting layer, and a fine particle containing layer positioned in the optical path of light emitted from the light emitting layer, wherein the fine particle containing layer contains an organic resin material, a first fine particle, and a second fine particle having a weight average particle diameter greater than that of the first fine particle, wherein a refractive index nof the organic resin material into which the first fine particle is added and an average refractive index nof the organic compound layer satisfy a relationship |n−n|<0.25, and wherein the refractive index nand a refractive index nof the second fine particle satisfy a relationship n−n>0.2.