Organic light emitting device having metal electrodes in a groove with steps in a substrate
US7268489B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2004 |
| Grant date | Sep 11, 2007 |
| Priority date | — |
| Expiry date | Oct 6, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
Abstract
An organic light emitting device includes first and second metal layers used as electrodes on a substrate, an electron transport layer on the first metal layer, a first partition wall insulating the first metal layer from the second metal layer and extending onto the electron transport layer along the first metal layer, a second partition wall on the first metal layer around the electron transport layer, a third partition wall separated from the first partition wall and on the second metal layer, an organic light emitting layer on the electron transport layer, a hole transport layer on the organic light emitting layer and contacting the second metal layer, a protecting layer covering the hole transport layer and extending to the first and second metal layers beyond the second and third partition walls, and sealing materials filling spaces between the protecting layer and the first and second layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.