Double-layer cholesteric liquid crystal display and its manufacturing method
US12235559B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2024 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Jun 3, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13473
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A double-layer cholesteric liquid crystal display and its manufacturing method are disclosed. The double-layer cholesteric liquid crystal display includes three transparent substrates, two opposing electrode layers, two cholesteric liquid crystal layers, and a first light-absorbing layer. Additionally, the double-layer cholesteric liquid crystal display incorporates two drive ICs and a second light-absorbing layer. The two drive ICs can be positioned either on the same side or on opposite sides within the non-display area of the double-layer cholesteric liquid crystal display. Furthermore, the first cholesteric liquid crystal layer exhibits a first color light, and the second cholesteric liquid crystal layer exhibits a second color light, where the colors are selected as contrasting colors. Additionally, the two cholesteric liquid crystal layers possess mutually opposite optical rotary properties. The invention is capable of producing a thinner, lighter double-layer cholesteric liquid crystal display that enhances contrast and reflectivity, thereby effectively improving the overall display performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.