Ferroelectric liquid-crystal display with wide range of working temperatures
US6549188B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2000 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Jun 15, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Ferroelectric liquid-crystal display having a broad operating temperature range. A ferroelectric liquid-crystal display containing a ferroelectric liquid-crystal mixture which is addressed with voltage pulses≧0.9 ms. The display according to the invention is particularly suitable for applications in which the length of the response time is not critical. Such displays can be operated with the same voltage over a broad temperature range; adjustment of the voltage as a function of temperature is not necessary. Examples of preferred applications are displays in chip cards, electronic price and display signs (shelf labels), PDAs (personal digital assistants) and pagers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.