Waveguides comprising light scattering surfaces and display devices comprising the same
US9690033B2 · kind B2 · utility
5Cited by
6References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2016 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Mar 30, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/0221
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed herein are waveguides comprising at least one scattering surface, a periodicity ranging from about 0.5 μm to about 2 μm, and an RMS roughness ranging from about 20 nm to about 60 nm. Single-layer waveguides having a thickness ranging from about 1 μm to about 100 μm are disclosed herein as well as multi-layer waveguides comprising at least one high index layer and optionally at least one low index layer. Lighting and display devices and OLEDs comprising such waveguides are further disclosed herein as well as methods for making the waveguides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.