Triazole derivatives and organic electroluminescent devices produced therefrom
US5792567A · kind A · utility
7Cited by
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7Claims
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Assignee
Inventors
Key dates
| Filing date | Feb 7, 1996 |
| Grant date | Aug 11, 1998 |
| Priority date | — |
| Expiry date | Feb 7, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The triazole derivatives of this invention are expressed by the general formula (1). The organic electroluminescent device of this invention have a layer containing at least one triazole derivative of the general formulas (1) and (2). Such triazole derivatives are excellent in electron-transport efficiency, hole-blocking properties and heat resistance, and such organic electroluminescent devices are excellent in luminous efficiency, luminance and stability. ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9 and R.sup.10 have the same meanings as indicated in the specification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.