OLED display device
US7142179B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2005 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Mar 23, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/876
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A full-color OLED display device comprised of a substrate; an array of light-emitting elements, each element comprised of a first EL unit positioned between and in electrical contact with a first pair of electrodes and a second EL unit positioned between and in electrical contact with a second pair of electrodes and located above or below the first EL unit, wherein the first EL unit emits light primarily in only two of the red, green and blue portions of the visible spectrum, and the second EL unit emits light at least in the remaining third portion of the visible spectrum; and a component for selectively filtering the light produced by the first EL unit to filter light from one of the only two of the red, green and blue portions of the visible spectrum in some light-emitting elements and to filter light from the other of the only two of the red, green and blue portions of the visible spectrum in some other light-emitting elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.