High transmission light control film
US11940689B2 · kind B2 · utility
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35References
20Claims
0Family size
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Key dates
| Filing date | Dec 12, 2022 |
| Grant date | Mar 26, 2024 |
| Priority date | — |
| Expiry date | Dec 12, 2042 |
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.