Light control film with varied viewing angle
US10948734B2 · kind B2 · utility
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Key dates
| Filing date | Nov 2, 2016 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | Jan 14, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/52
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light control film includes a plurality of spaced apart substantially parallel first light absorbing regions arranged along a first direction, each first light absorbing region having a width and a height, the plurality of first light absorbing regions including nonoverlapping first and second sub-pluralities of the plurality of first light absorbing regions, the first sub-plurality of the plurality of first light absorbing regions having a first viewing angle, the second sub-plurality of the plurality of first light absorbing regions having a different second viewing angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.