Cholesteric liquid crystal display that provides sensory feedback
US12353630B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2024 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Mar 12, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13718
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A cholesteric liquid crystal display providing sensory feedback, comprises a flexible front substrate disposed near a front surface of the display, the flexible front substrate being at least partially flexible. A liquid crystal layer comprises cholesteric liquid crystal material. Pressure applied to the flexible front substrate changes reflectance of the cholesteric liquid crystal material. At least one textured surface is constructed and arranged so that pressure that is applied to the at least one textured surface provides at least one of vibratory, audible and tactile sensory feedback. At least a portion of the changes in reflectance is erased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.