Organic EL element and production method for same
US-8927976-B2 · Jan 6, 2015 · US
Organic el device including a mixed hole injection layer
US9035293B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9035293-B2 |
| Application number | US-201214126482-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 4, 2012 |
| Priority date | Apr 18, 2012 |
| Publication date | May 19, 2015 |
| Grant date | May 19, 2015 |
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Abstract
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Organic EL device comprising: anode and cathode disposed to face each other with gap therebetween; functional layer that contains organic material and is disposed between the anode and the cathode; and hole injection layer that has function to inject holes into the functional layer and is disposed between the anode and the functional layer, wherein the hole injection layer is mixture layer containing first oxide and second oxide. The first oxide is p-type metal oxide, the composition of the second oxide contains element that is thermally stable in both first state where the element has the maximum valence and second state where the element has valence smaller than the maximum valence, the element being more thermally stable in the second state than in the first state. The element contained in the composition of the second oxide in the hole injection layer is in the first state.
First claim
Opening claim text (preview).
The invention claimed is: 1. An organic EL device comprising: an anode and a cathode disposed to face each other with a gap therebetween; a functional layer that contains an organic material and is disposed between the anode and the cathode; and a hole injection layer that has a function to inject holes into the functional layer and is disposed between the anode and the functional layer, wherein the hole injection layer is a mixture layer containing a first oxide and a secon…
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Classifications
Electricity · mapped topic
- H01L51/5088Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H10K50/17Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9035293B2 cover?
- Organic EL device comprising: anode and cathode disposed to face each other with gap therebetween; functional layer that contains organic material and is disposed between the anode and the cathode; and hole injection layer that has function to inject holes into the functional layer and is disposed between the anode and the functional layer, wherein the hole injection layer is mixture layer cont…
- Who is the assignee on this patent?
- Ohuchi Satoru, Fujita Hirofumi, Fujimura Shinya, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H01L51/5088. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 19 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).