Light extraction substrate for organic light emitting element, method for manufacturing same, and organic light emitting element comprising same
US10454071B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2014 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | May 3, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K71/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to a light extraction substrate for an organic light emitting element, a method for manufacturing the same, and an organic light emitting element comprising the same and, more particularly, to a light extraction substrate for an organic light emitting element exhibiting a good light extraction efficiency, a method for manufacturing the same, and an organic light emitting element comprising the same. To this end, the present invention provides a light extraction substrate for an organic light emitting element, a method for manufacturing the same, and an organic light emitting element comprising the same, the light extraction substrate comprising a first light extraction layer having a plurality of pores formed therein and made of a first metal oxide doped with a dopant; and a second light extraction layer formed on the first light extraction layer and made of a second metal oxide which has a different atomic diffusion rate compared to the first metal oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.