Optical stacks for sparkle reduction
US9995944B2 · kind B2 · utility
2Cited by
17References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2015 |
| Grant date | Jun 12, 2018 |
| Priority date | — |
| Expiry date | Jun 3, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/4272
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical stacks including a grating structure that generates diffraction in two in-plane dimensions. The optical stacks may include two gratings, which may be one-directional or two-directional, or may include a single two-directional grating. The optical stacks include particles selected to give controlled diffusion of light. The optical stacks are suitable for reducing sparkle in displays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.