Transparent diffusive OLED substrate and method for producing such a substrate
US9412958B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2014 |
| Grant date | Aug 9, 2016 |
| Priority date | — |
| Expiry date | Jun 13, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A transparent diffusive OLED substrate includes the following successive elements or layers: (a) a transparent flat substrate made of mineral glass having a refractive index n1 of between 1.48 and 1.58, (b) a monolayer of mineral particles attached to one side of the substrate by means of a low index mineral binder having a refractive index n2 of between 1.45 and 1.61, and (c) a high index layer made of an enamel having a refractive index n4 between 1.82 and 2.10 covering the monolayer of mineral particles, the mineral particles having a refractive index n3 between n2+0.08 and n4−0.08 and protruding from the low index mineral binder so as to be directly in contact with the high index layer, thereby forming a first diffusive interface between the mineral particles and the low index binder, and a second diffusive interface between the mineral particles and the high index layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.