Electroluminescent device including gallium complexes
US7569288B2 · kind B2 · utility
1Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2006 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Apr 16, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24942
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An OLED device comprises an anode, a light emitting layer, a first layer, a second layer contiguous to the first layer, and a cathode, in that order. The first layer includes a first complex comprising gallium and the second layer includes a second complex also comprising gallium and wherein the second complex has a more negative LUMO than the first complex. Such materials can provide an improvement in one or more of luminance, drive voltage, and stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.