Green emitting phosphors combined with broad band organic red emitters with a sharp near ir cut off
US-2015372240-A1 · Dec 24, 2015 · US
Organic light emitting devices
US9196856B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9196856-B2 |
| Application number | US-32736508-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 3, 2008 |
| Priority date | Jan 29, 2008 |
| Publication date | Nov 24, 2015 |
| Grant date | Nov 24, 2015 |
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Abstract
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The present invention relates to monochromatic organic light emitting devices. The organic light emitting device includes a substrate, an anode, a cathode and an organic electroluminescent medium disposed between the anode and the cathode, wherein the organic electroluminescent medium includes compound monochromatic luminescent layer; and the compound monochromatic luminescent layer includes host A doped with monochromatic dopant and host B doped with monochromatic dopant, wherein the host A is consisted of two kinds of materials with different transporting characteristics, one is hole-transporting material, and the other is electron-transporting material. In addition, the present invention further relates to white organic light emitting devices, wherein the organic electroluminescent medium is consisted of at least one compound monochromatic luminescent layer, which includes host A doped with monochromatic dopant and host B doped with monochromatic dopant. The present invention provides a design to improve the lifetime of the organic light emitting device markedly.
First claim
Opening claim text (preview).
The invention claimed is: 1. A monochromatic organic light emitting device including an anode, a cathode and an organic electroluminescent medium disposed between the anode and the cathode, wherein the organic electroluminescent medium comprises a compound monochromatic luminescent layer including a first luminescent sublayer comprising host A doped with a monochromatic dopant and a second luminescent sublayer comprising host B doped with a monochromatic dopant, wherein host A inc…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H01L51/5036Primary
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9196856B2 cover?
- The present invention relates to monochromatic organic light emitting devices. The organic light emitting device includes a substrate, an anode, a cathode and an organic electroluminescent medium disposed between the anode and the cathode, wherein the organic electroluminescent medium includes compound monochromatic luminescent layer; and the compound monochromatic luminescent layer includes ho…
- Who is the assignee on this patent?
- Qiu Yong, Wu Kongwu, Zhang Guohui, and 3 more
- 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 Nov 24 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).