Light emitting device
US-9214493-B2 · Dec 15, 2015 · US
Light emitting device having quantum cut dots with a protecting material and prolonged drive lifetime and good color purity
US9155159B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9155159-B2 |
| Application number | US-68004608-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 29, 2008 |
| Priority date | Sep 28, 2007 |
| Publication date | Oct 6, 2015 |
| Grant date | Oct 6, 2015 |
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- Title
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- Abstract
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Abstract
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A QD protecting material having high compatibility with a binder component in a luminescent layer. The luminescent layer contains, as a part of its chemical structure, a compound containing a moiety A having a sum atomic weight MA of 100 or more and quantum dots protected by a protecting material, the protecting material contains, as a part of its chemical structure, a linking group connected to a quantum dot surface and a moiety B that has a sum atomic weight MB of 100 or more, satisfies a relationship between MB and MA represented by |MA−MB|/MB (2, and satisfies the requirement that the sum atomic weight MB is larger than one-third of the molecular weight of the protecting material, and a solubility parameter SA of the moiety A and a solubility parameter SB of the moiety B satisfy a relationship represented by |SA (SB| (2.
First claim
Opening claim text (preview).
The invention claimed is: 1. A light emitting device comprising: a substrate; two or more opposed electrodes provided on the substrate; and a luminescent layer provided between two of the electrodes; the light emitting device further optionally comprising a metal layer provided on the electrodes, wherein the luminescent layer contains, as a part of its chemical structure, a compound containing a moiety A having a sum atomic weight MA of 100 or more and quantum dots protected by a…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H05B33/145Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9155159B2 cover?
- A QD protecting material having high compatibility with a binder component in a luminescent layer. The luminescent layer contains, as a part of its chemical structure, a compound containing a moiety A having a sum atomic weight MA of 100 or more and quantum dots protected by a protecting material, the protecting material contains, as a part of its chemical structure, a linking group connected t…
- Who is the assignee on this patent?
- Okada Masato, Ueno Shigehiro, Akai Tomonori, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification H05B33/145. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 06 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).