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

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 b...

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Bibliographic Details
Published inIEEE transactions on consumer electronics Vol. 55; no. 2; pp. 839 - 844
Main Authors Cho, Hyunsuk, Kwon, Oh-Kyong
Format Journal Article
LanguageEnglish
Published New York IEEE 01.05.2009
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Algorithms
Backlight dimming
Backlights
Brightness
Compensation
Consumer products
Data mining
Dimming
Energy consumption
Histograms
Image quality
LCD
LED backlight
Liquid crystal displays
Modulation
Pixel
Power engineering and energy
Power engineering computing
Online AccessGet full text
ISSN0098-3063
1558-4127
DOI10.1109/TCE.2009.5174463

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Summary: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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ISSN:0098-3063
1558-4127
DOI:10.1109/TCE.2009.5174463