Transparent contacts for organic devices
US7173369B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2003 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Aug 30, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/3031
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An organic light emitting device structure includes a substrate, a first electrically conductive layer formed over the substrate wherein the first electrically conductive layer has a positive polarity, and a transparent organic light emitting device formed over the first electrically conductive layer. The structure also includes a transparent electrically conductive metal layer formed over the transparent organic light emitting device wherein the metal has a work function less than 4 eV, and a second electrically conductive layer formed over the transparent electrically conductive metal layer, wherein the second electrically conductive layer has a negative polarity, and wherein the second electrically conductive layer comprises a material selected from the group consisting of a transparent electrically conductive oxide and a transparent electrically conductive polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.