Visible light sensors can pay dividends in automatic brightness control applications

Ferguson, Bruce
January 2004
Portable Design;Jan2004, Vol. 10 Issue 1, p28
Points out that visible light sensors are beneficial for automatic brightness control of portable devices such as personal digital assistants and cell phones. Observation that portable devices roam between locations having vastly different lighting; Need for a closed-loop system that lets the users set display brightness to their comfort level once; Automatic adjustment of brightness as dictated by changes in ambient light.


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