Power saving driving method of mobile telephone
US7095991B2 · kind B2 · utility
9Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2001 |
| Grant date | Aug 22, 2006 |
| Priority date | — |
| Expiry date | Jun 1, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a mobile phone having a liquid crystal display unit, the entire liquid crystal display unit is displayed in a simple display mode at lest in a non-operating standby mode. In the simple display mode, the entire liquid crystal display unit is driven by reducing the number of gradation levels or by decreasing a liquid crystal driving voltage. By using such a controlling method, the power consumption of the liquid crystal display unit can be reduced in the non-operating standby mode. On the other hand, necessary information such as time and the amount of remaining battery is displayed such that the information can be read.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.