Light-emitting material and organic electroluminescent device using the same
US7618718B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Sep 7, 2005 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | Dec 1, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light-emitting material is represented by the following general formula [1]:useful as an emissive layer of organic electroluminescent device (OELD). The chemical structure L is selected from a group consisting of the chemical structures AA, BB, AB, and the combination thereof. The chemical structures A and B are respectively represented by the following general formulas [2] and [3]:The chemical structure X is selected from the group 4A to 6A elements of the periodic table. The chemical structure B is an aromatic hydrocarbon having n benzenes, wherein n is an integer of 1 to 8.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.