White OLED having multiple white electroluminescence units
US7273663B2 · kind B2 · utility
78Cited by
6References
81Claims
0Family size
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Key dates
| Filing date | Aug 20, 2004 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | Jul 30, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24942
Abstract
A tandem white OLED device includes an anode, a cathode, and a plurality of organic electroluminescence units disposed between the anode and the cathode, wherein each organic electroluminescence unit includes at least one light-emitting layer, and wherein each organic electroluminescence unit emits white light. The device also includes an intermediate connector disposed between each adjacent organic electroluminescence unit, wherein the intermediate connector includes at least two different layers, and wherein the intermediate connector has no direct connection to an external power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.