Two-Dimensional Dimming Algorithm using Light Spread Function 


Vol. 35,  No. 8, pp. 1204-1210, Aug.  2010


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  Abstract

In this paper, in order to reduce the power consumption of LCD TV, we present a two-dimensional dimming algorithm for LED BLU(Backlight Unit) using light spread function and a pragmatic implementation method. In conventional two dimensional dimming algorithms, LED BLU is divided into MxN blocks and proper backlight luminance for each block is computed according to input image and used for dimming control. But, LED light of each block is diffused and affects the neighboring blocks so that luminance of each block becomes larger than that of intent. In the proposed algorithm, dimming control values are reduced by the amount of quantity affected by the neighboring blocks using light spread function, resulting in additional reduction of power consumption.

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  Cite this article

[IEEE Style]

H. Jung and S. Kang, "Two-Dimensional Dimming Algorithm using Light Spread Function," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 8, pp. 1204-1210, 2010. DOI: .

[ACM Style]

Hye-Dong Jung and Sung-Jin Kang. 2010. Two-Dimensional Dimming Algorithm using Light Spread Function. The Journal of Korean Institute of Communications and Information Sciences, 35, 8, (2010), 1204-1210. DOI: .

[KICS Style]

Hye-Dong Jung and Sung-Jin Kang, "Two-Dimensional Dimming Algorithm using Light Spread Function," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 8, pp. 1204-1210, 8. 2010.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880