Abstract
This paper presents a new backlight dimming method that applies segmentation-based
clipped error control to liquid crystal displays. Clipped error control is
the most important algorithm for power saving during backlight dimming. The
proposed segmentation-based clipped error control algorithm considers the
exact local distribution of an image using image segmentation, which enhances
the image quality compared with existing methods. In addition, a binary search
algorithm is applied to the proposed method for reducing the computational
complexity. The experimental results showed that the average peak signal-to-noise
ratio with the proposed method was up to 11.734 dB higher than those of conventional
methods whereas the power consumption increased only slightly.
© 2014 IEEE
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