Cholesteric liquid crystal display
US11435640B1 · kind B1 · utility
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2References
22Claims
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Key dates
| Filing date | Sep 28, 2021 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | Sep 28, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133638
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A cholesteric liquid crystal display includes a cholesteric liquid crystal device, a color filter element, a first quarter-wave plate, and a light recovery structure. The cholesteric liquid crystal device includes a cholesteric liquid crystal. The color filter element and the first quarter-wave plate overlap the cholesteric liquid crystal device. The first quarter-wave plate and the color filter element are located between the cholesteric liquid crystal and the light recovery structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.