Terminal device and illumination control method
US9767735B2 · kind B2 · utility
2Cited by
3References
19Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 25, 2014 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Feb 27, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
To avoid unintentionally turning off a backlight, a device includes circuitry that is configured to control a backlight to illuminate a display panel of the device; store a first preset time interval for reducing brightness of the backlight; determine that an input has not been received within the first preset time interval; acquire one or more signals from a sensor device corresponding to movement of the device; estimate whether the device is in use based on the one or more signals; and postpone a reduction in the brightness of the backlight based when a result of an estimate indicates that the device is in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.