Metal complex organic electroluminescent material and organic electroluminescent device
US11424418B2 · kind B2 · utility
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2References
11Claims
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Key dates
| Filing date | Apr 14, 2020 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | Aug 26, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/30
Abstract
The present invention relates to an organic electroluminescent material, an organic electroluminescent device, and a method for preparing the organic electroluminescent device. Due to comprising an organic compound A with 3.0 eV>ET≥2.0 eV and a compound B of M(LA)x(LB)y(LC)z, the organic electroluminescent material of the present invention has the advantages of an increased luminescence lifetime and/or a reduced operating voltage on the basis of maintaining other electronic properties at a certain level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.