Transparent support for organic light emitting device
US7298072B2 · kind B2 · utility
20Cited by
13References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 2002 |
| Grant date | Nov 20, 2007 |
| Priority date | — |
| Expiry date | Oct 19, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K71/50
Abstract
An improved transparent support substrate in an organic light emitting diode (OLED) device comprises an organic polymer support film and a composite layer on the support film which is disposed intermediate the support film and the diodes of the OLED; the composite layer has first and second discrete coating layers bonded together in opposed facing relationship; the layers are of material impermeable to oxygen and water vapor but contain inadvertent discontinuities which result in discontinuity-controlled permeation of oxygen and water vapor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.