A log-function power-constrained algorithm for OLED displays

Organic light-emitting diode(OLED) has emerged as the new generation technique to mobile displays. Although OLED plane has many advantages compared to LCD, it still accounts for a large amount of the power consumption in mobile devices. In this paper, we propose a log-function power constrained algorithm(LFPC) to save the power of OLED display. We choose superpixel as the basic unit and computer a saliency map of all superpixels. Next, we integrate the human visual characteristic into a log-function which is used to limit the pixel values thus achieving the power saving of OLED. Our experimental results show that LFPC algorithm can achieve 34.6% more OLED power saving for images with high luminance while retaining a high image visual experience. Also, our methodology performs better on power saving and image quality compared to PCCE.