Display system with automatic and manual brightness control
US6337675B1 · kind B1 · utility
81Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1997 |
| Grant date | Jan 8, 2002 |
| Priority date | — |
| Expiry date | Oct 30, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q3/85
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A display system provides automatic and manual brightness control. A brightness controller varies the luminance of the display based upon ambient light as sensed by an ambient light sensor. The brightness control varies the luminance of the display between the minimum luminance at a minimum illuminance to a maximum luminance at a maximum illuminance. Preferably, a user input device selectively varies the maximum illuminance at which the display displays said maximum luminance and selectively alters the minimum luminance which is displayed at the minimum illuminance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.