Light transmitting substrate, method for manufacturing light transmitting substrate, organic LED element and method for manufacturing organic LED element
US8431943B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2010 |
| Grant date | Apr 30, 2013 |
| Priority date | — |
| Expiry date | Aug 27, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/341
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention is intended to provide an organic LED element in which the extraction efficiency is improved up to 80% of emitted light, and provides a translucent substrate comprising a translucent glass substrate; a scattering layer formed on the glass substrate and comprising a glass which contains a base material having a first refractive index for at least one wavelength of light to be transmitted and a plurality of scattering materials dispersed in the base material and having a second refractive index different from that of the base material; and a translucent electrode formed on the scattering layer and having a third refractive index higher than the first refractive index, wherein distribution of the scattering materials in the scattering layer decreases toward the translucent electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.