| Summary: | 碩士 === 國立臺灣科技大學 === 電子工程系 === 104 === Displays based on organic light emitting diodes (OLEDs) is an emerging technology that has been widely used in mobile devices. It incorporates a varying power-demand character, which particularly inefficient for displaying bright colors. This thesis proposes a scheme that preserve hue information and reduce power consumption for video sequences on OLED displays based on the pixel dimming transformation. The dimming scheme uses the coefficient derived from the hue-saturation-value (HSV) representation and the luminance of the frame to modify each pixel. Thus, the proposed scheme allows the data adjustment directly on the red, green, and blue intensity of the contents. The temporal information between each frame is adopted to reduce the computation for video sequence processing. According to the measurement of several video sequences on an OLED display, up to 73% of displaying power can be reduced with mean visual saliency index of 0.961.
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