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A backlight dimming algorithm for low power and high image quality LCD applications

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2 Author(s)
Hyunsuk Cho ; Div. of Electr. & Comput. Eng., Hanyang Univ., Seoul, South Korea ; Oh-Kyong Kwon

A new backlight dimming algorithm is proposed to reduce power consumption of backlight and improve image quality in LCD applications. The proposed algorithm is consisted of two new techniques: the brightness modulation of the backlight and pixel compensation. The power saving ratio of four typical benchmarking images is 14-43% by using proposed brightness modulation algorithm. The proposed pixel compensation removes the clipping artifact and unnecessary luminance reduction. The proposed backlight dimming algorithm is demonstrated on 7-inch TFTLCD with LED backlight.

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Consumer Electronics, IEEE Transactions on  (Volume:55 ,  Issue: 2 )