Method for manufacturing light-emitting element inlcuding quantum dots
US-12150220-B2 · Nov 19, 2024 · US
Fluorescence and delayed fluorescence-type organic light-emitting material and element
US8993129B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8993129-B2 |
| Application number | US-201013514248-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 2, 2010 |
| Priority date | Dec 7, 2009 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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Fluorescence-emitting material which improves luminous efficiency of an organic light-emitting element such as an organic EL element or an organic PL element and an organic light-emitting element using the fluorescence-emitting material. The fluorescence-emitting material includes a compound having an indolocarbazole skeleton represented by the following general formula (1), as defined in the specification. The organic light-emitting element includes an organic EL element including: a substrate; an anode; a cathode; and a light-emitting layer, the anode and the cathode being laminated on the substrate and the light-emitting layer being sandwiched between the anode and the cathode, in which the light-emitting layer includes: the organic light-emitting material; and as a host material, an organic compound having excited triplet energy higher than that of the organic light-emitting material.
First claim
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The invention claimed is: 1. A fluorescence and delayed fluorescence type organic light-emitting element, comprising: a substrate; and at least one light-emitting layer comprising (i) an organic light-emitting material having no metal atom in the molecule, which light-emitting material emits fluorescence and delayed fluorescence and which has a difference between excited singlet energy (S 1 ) and excited triplet energy (T 1 ) of 0.2 eV or less, the light-emitting layer being pro…
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Chemistry & Metallurgy · mapped topic
Electricity · mapped topic
Chemistry & Metallurgy · mapped topic
- H05B33/10Primary
Electricity · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8993129B2 cover?
- Fluorescence-emitting material which improves luminous efficiency of an organic light-emitting element such as an organic EL element or an organic PL element and an organic light-emitting element using the fluorescence-emitting material. The fluorescence-emitting material includes a compound having an indolocarbazole skeleton represented by the following general formula (1), as defined in the s…
- Who is the assignee on this patent?
- Endo Ayataka, Adachi Chihaya, Yoshimura Kazuaki, and 5 more
- What technology area does this patent fall under?
- Primary CPC classification H05B33/10. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 31 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).