Organic EL display and method of manufacturing the same

US9054331B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9054331-B2
Application numberUS-201213705118-A
CountryUS
Kind codeB2
Filing dateDec 4, 2012
Priority dateFeb 5, 2010
Publication dateJun 9, 2015
Grant dateJun 9, 2015

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Abstract

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An organic EL display includes: lower electrodes arranged on a substrate so as to correspond to red, green and blue organic EL elements, respectively; hole injection/transport layers arranged on the lower electrodes so as to correspond to the red, green and blue organic EL elements, respectively, the hole injection/transport layers having one or both of hole injection and hole transport properties; red and green organic light-emitting layers arranged on the hole injection/transport layers for the red and green organic EL elements, respectively, and including a low-molecular material; a blue organic light-emitting layer arranged on whole surfaces of the red and green organic light-emitting layers and the hole injection/transport layer for the blue organic EL element; and an electron injection/transport layer and an upper electrode arranged on a whole surface of the blue light-emitting layer, the electron injection/transport layer having one or both of electron injection properties and electron transport properties.

First claim

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What is claimed is: 1. An organic EL display comprising: lower electrodes arranged on a substrate so as to correspond to a red organic EL element, a green organic EL element and a blue organic EL element, respectively; hole injection/transport layers arranged on the lower electrodes so as to correspond to the red organic EL element, the green organic EL element and the blue organic EL element, respectively, the hole injection/transport layers having hole injection properties for…

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What does patent US9054331B2 cover?
An organic EL display includes: lower electrodes arranged on a substrate so as to correspond to red, green and blue organic EL elements, respectively; hole injection/transport layers arranged on the lower electrodes so as to correspond to the red, green and blue organic EL elements, respectively, the hole injection/transport layers having one or both of hole injection and hole transport propert…
Who is the assignee on this patent?
Sony Corp
What technology area does this patent fall under?
Primary CPC classification H01L51/5036. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jun 09 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).