Flexible hermetic thin film with light extraction layer
US8946754B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2014 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Jun 16, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/873
Abstract
A protected organic light emitting diode includes an organic light emitting diode structure formed on a substrate, a hermetic barrier layer formed over at least part of the organic light emitting diode structure, and a light extraction layer. The barrier layer may include a glass material such as a tin fluorophosphate glass, a tungsten-doped tin fluorophosphate glass, a chalcogenide glass, a tellurite glass, a borate glass or a phosphate glass. The light extraction layer, which may be formed over the barrier layer, includes a high refractive index matrix material and at least one of scattering particles dispersed throughout the matrix material and a roughened surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.