DLS: Dynamic backlight luminance scaling of liquid crystal display

被引：100
作者：
Chang, N [1 ]
Choi, I [1 ]
Shim, H [1 ]
机构：
[1] Seoul Natl Univ, Sch Engn & Comp Sci, Seoul 151010, South Korea
来源：
IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS | 2004年 / 12卷 / 08期
关键词：
energy management; image processing; liquid crystal displays; power measurement;
D O I：
10.1109/tvlsi.2004.831472
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Backlight systems dominate the power requirements of battery-operated hand-held devices with color thin-film transistor (TFT), liquid crystal displays (LCDs). We introduce dynamic luminance scaling of the backlight with appropriate image compensation. Dynamic backlight luminance scaling (DLS) keeps the perceived intensity or contrast of the image as close as possible to the original while achieving significant power reduction. DLS compromises quality of image between power consumption, which fulfills a large variety of user preferences in power-aware multimedia applications. DLS saves 20% to 80% of power consumption of the backlight systems while keeping a reasonable amount of image quality degradation.
引用
收藏
页码：837 / 846
页数：10
相关论文
共 14 条
[1]  
Chang NY, 2002, IEEE T VLSI SYST, V10, P146
[2]  
CHENG WC, 2004, P DES AUT TEST EUR F, P16
[3]  
Choi I, 2003, ISLPED'03: PROCEEDINGS OF THE 2003 INTERNATIONAL SYMPOSIUM ON LOW POWER ELECTRONICS AND DESIGN, P36
[4]  
Choi I, 2002, ISLPED'02: PROCEEDINGS OF THE 2002 INTERNATIONAL SYMPOSIUM ON LOW POWER ELECTRONICS AND DESIGN, P112, DOI 10.1109/LPE.2002.1029567
[5]  
Flinn J, 1999, OPERATING SYSTEMS REVIEW, VOL 33, NO 5, DECEMBER 1999, P48, DOI 10.1145/319344.319155
[6]  
Gatti F., 2002, P INT C COMP ARCH SY, P218
[7]  
Gonzalez R.C., 1992, DIGITAL IMAGE PROCES
[8]  
HAERR G, 2003, MICROWINDOWS PROJECT
[9]  
*INT CO LTD, 2004, INT NOT PERF
[10]  
*LG PHILL LCD CO L, 1998, LP064V1 6 4 VGA TFT
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