High transmission light control films with asymmetric light output
US12320993B2 · kind B2 · utility
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30References
19Claims
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Key dates
| Filing date | Jun 11, 2020 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | May 21, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2207/123
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Light control films comprise a light input surface and alight output surface opposite the light input surface and alternating transmissive regions and absorptive regions disposed between the light input surface and the light output surface. The absorptive regions have an aspect ratio of at least 30 and are canted in the same direction. The alternating transmissive regions and absorbing regions have a maximum relative transmission at a viewing angle other than 0 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.