An apparatus and method for enabling screen brightness of a display unit to be adjusted automatically according to display brightness, thereby improving the visibility of the display screen to a viewing user. A brightness adjusting system including a gray scale gradation evaluator 20 for calculating...http://www.google.com.au/patents/US7501771?utm_source=gb-gplus-sharePatent US7501771 - Brightness controlling apparatus, brightness adjusting system, computer system, liquid crystal display unit, brightness controlling method, computer software, and storage medium
