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- W2007067413 abstract "A roll-off algorithm has been incorporated into adaptive dimming LCDs to enhance the details of high gray levels. However, because a roll-off algorithm generates block artifacts in local dimming LCDs with 1-D or 2-D local blocks, we introduced a new roll-off algorithm for block artifact reduction in 2011 based on an ideal backlight without any light spreads. Whereas, this paper demonstrates a weighted roll-off local dimming scheme for low power LCD applications which eliminates block artifacts at a real backlight with light spreads. Both simulation and experimental results represent that a proposed weighted algorithm alleviates color difference values as well as block artifacts without any increases in power consumption. The measured backlight power consumption in a weighted roll-off 1-D dimming LCD of 5 local blocks is 27.60 W over 24 test images, on the average, compared to 62.45 W of a constant backlight." @default.
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- W2007067413 date "2014-06-01" @default.
- W2007067413 modified "2023-10-18" @default.
- W2007067413 title "Weighted roll-off scheme to remove block artifacts for low power local dimming liquid crystal displays" @default.
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- W2007067413 doi "https://doi.org/10.1016/j.optlastec.2013.10.028" @default.
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