How to conserve power when playing back video content has also become a significant issue when designing mobile media devices. As displays typically consume 30% to 60% of the total system power, there has been a tremendous amount of research put into methods of reducing display power. A common solution is to lower the backlight level of the LCD or power level of an OLED. Unfortunately, this solution significantly diminishes the viewing experience since most details are lost due to the lowered contrast ratio. QuickLogic's Display Power Optimizer (DPO) technology allows system designers significantly improved battery life without diminishing user experience.
DPO uses statistical information gathered pixel-by-pixel, frame-by-frame to adjust the display backlight or power. The ability to provide a unique tone curve for each pixel, as well as have tight control over the display backlight, gives greater flexibility than the global adjustments of alternative implementations. The QuickLogic approach results in greater power savings (up to 41%) and the entirely new capability of adapting to a bright environment. DPO seamlessly integrates with the QuickLogic VEE (Visual Enhancement Engine) PSB, ensuring longer battery life and an excellent visual experience by coupling the PWM driving the display backlight with the display content processing parameters of the VEE technology.