Liquid crystal display with independently activated backlight sources
US5796382A · kind A · utility
71Cited by
9References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 31, 1996 |
| Grant date | Aug 18, 1998 |
| Priority date | — |
| Expiry date | Jan 31, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A liquid crystal display 10 is backlit by more than one light source 20 which is operated independently. Selective usage of the light sources extends the useful operating time of batteries when the liquid crystal display is used with a portable computer system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.