In visual display devices such as LCD devices with backlight illumination, the backlight typically consumes most of device battery power. In the interest of displaying a given pixel pattern at a minimized backlight level, the pattern can be transformed while maintaining image quality, with a transform...http://www.google.com/patents/US7873229?utm_source=gb-gplus-sharePatent US7873229 - Distributed processing for video enhancement and display power management
