Display control device for controlling brightness of a display installed in a vehicular cabin
US5617112A · kind A · utility
68Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1994 |
| Grant date | Apr 1, 1997 |
| Priority date | — |
| Expiry date | Dec 21, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/144
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
When display control for a display device installed in a vehicular cabin is to be performed, an environmental light intensity is detected by a light sensor, and variation time function of the environmental light intensity is calculated. On the basis of the light intensity variation time function, a variation time function of a human pupil open degree is predicted. On the basis of the predicted time function, an optimal value of brightness of the display device is determined to perform display brightness control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.