Cholesteric display with video rate and gray-scale image
US12147141B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Jun 16, 2022 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Jun 16, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1368
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to a TFT liquid crystal display, more specifically, to a cholesteric liquid crystal display employing both field-induced nematic vertical alignment texture and field-induced eddy alignment texture as video astable states and cholesteric planer texture and focal conic texture as power-free bistable states. Thus, the display provides not only video speed motion pictures with unlimited grayscale but also excellent static images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.