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Contrast-aware power control method for mobile active-matrix organic light-emitting diode display

Mobile display technology has been developed fast and low-power design for the display is more important than ever. Hardware techniques for low-power design are not flexible and the existing software techniques are not considering the characteristics of the display panels. In this study, a histogram-based contrast-aware power control method for active-matrix organic light-emitting diode display is proposed. The proposed power control method solves an optimisation problem to achieve power control with maximum contrast available. A new histogram representation is also proposed to calculate the power consumption of an image efficiently in the optimisation process. Simulation results and hardware experiment results show that the proposed method provides both precise power control and better contrast of the output image.