Layered structure for an OLED and a method for producing such a structure
US10367142B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2016 |
| Grant date | Jul 30, 2019 |
| Priority date | — |
| Expiry date | Mar 23, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
Abstract
A layered structure suitable as a support for an organic light emitting device (OLED), includes a light-transmissive glass substrate, a diffusive internal extraction layer (IEL) with an outer layer made of a glass containing at least 30 weight % of Bi2O3, formed on one side of the light-transmissive glass substrate, and an acid-resistant barrier layer formed on the IEL. The acid-resistant barrier layer has a bilayer structure made of an ALD-deposited metal oxide layer, the metal oxide being selected from the group consisting of aluminum oxide (Al2O3), titanium oxide (TiO2), zirconium oxide (ZrO2) and hafnium oxide (HfO2), in contact with the IEL, and a sputter-deposited SiOxNy layer in contact with the ALD-deposited metal oxide layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.