Cholesterol liquid crystal display and driving method thereof
US12217716B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2024 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Mar 14, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/061
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for driving a cholesteric liquid crystal display, wherein the method includes steps as follows: Firstly, a reflective cholesteric liquid crystal panel including a pixel array composed of a plurality of pixel units is provided. Next, a scanning operation is performed on the pixel array. The scanning operation includes steps as follows: A continuous fixed pulse is applied to at least one of the plurality of pixel units lasting for a time period, so as to make a cholesterol liquid crystal layer of the at least one of the plurality of pixel units having a uniform lying helix (ULH) phase; and a maintaining pulse that is smaller than the continuous fixed pulse is applied to the at least one of the plurality of pixel units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.