Method of fabricating light extraction substrate for organic light emitting device
US9688571B2 · kind B2 · utility
1Cited by
2References
10Claims
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Key dates
| Filing date | Jul 17, 2014 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Jul 17, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of fabricating a light extraction substrate for an organic light-emitting device which can increase the extraction efficiency of light emitted from the organic light-emitting device, thereby improving the overall luminous efficiency of the organic light-emitting device. Water glass is applied on a surface of a glass substrate. The water glass applied on the glass substrate is heat-treated such the surface of the glass substrate is roughened. The heat-treated water glass is removed from the glass substrate. A planarization layer of a glass frit is formed on the glass substrate from which the water glass has been removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.