Organic EL device having a high light output

US8941296B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8941296-B2
Application numberUS-201213439574-A
CountryUS
Kind codeB2
Filing dateApr 4, 2012
Priority dateApr 4, 2011
Publication dateJan 27, 2015
Grant dateJan 27, 2015

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Abstract

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An organic EL device includes a substrate, a first electrode layer formed on the substrate, an organic EL layer formed on the first electrode layer, and a second electrode layer formed on the organic EL layer. A distribution characteristic of light emitted from the first electrode layer into the substrate has a luminance in a direction of a first angle of 20 to 50 degrees measured with respect to an axis perpendicular to the substrate that is relatively high as compared to luminance in other angular directions.

First claim

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What is claimed is: 1. An organic EL device comprising: a substrate having an uneven surface and a front surface opposite the uneven surface; a first electrode layer formed on the front surface; an organic EL layer formed on the first electrode layer; a second electrode layer formed on the organic EL layer; a sealing member formed on the front surface of the substrate; and a sealing plate formed on the sealing member, the sealing plate being disposed over the second elec…

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What does patent US8941296B2 cover?
An organic EL device includes a substrate, a first electrode layer formed on the substrate, an organic EL layer formed on the first electrode layer, and a second electrode layer formed on the organic EL layer. A distribution characteristic of light emitted from the first electrode layer into the substrate has a luminance in a direction of a first angle of 20 to 50 degrees measured with respect …
Who is the assignee on this patent?
Okuyama Suguru, Shimoji Noriyuki, Rohm Co Ltd
What technology area does this patent fall under?
Primary CPC classification H01L51/5268. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).