High transmission light control film
US11550183B2 · kind B2 · utility
1Cited by
33References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2019 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Sep 24, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133562
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light control film comprises a light input surface and a light output surface opposite the light input surface; alternating transmissive regions and absorptive regions disposed between the light input surface and the light output surface, wherein the absorptive regions comprise a core having a first concentration, C1, of a light absorbing material sandwiched between cladding layers having a second concentration, C2, of the light absorbing material, wherein C2<C1, and wherein the cores have an aspect ratio of at least 20.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.