Searching for the preferred backlight intensity in liquid crystal displays with local backlight dimming

Jari Korhonen; Claire Mantel; Nino Burini; Søren Forchhammer

doi:10.1109/QoMEX.2013.6603221

Searching for the preferred backlight intensity in liquid crystal displays with local backlight dimming

Jari Korhonen
, Claire Mantel
, Nino Burini
, Søren Forchhammer

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

Local backlight dimming is one of the most promising techniques for reducing power consumption and improving contrast characteristics of liquid crystal displays (LCD). In practice, due to light diffusion and a smaller number of backlight sources than pixels, local backlight dimming must often trade-off between leakage of light in dark pixels and clipping of luminance in bright pixels. Only few studies have analyzed the subjective preferences between different luminance and contrast levels. In this paper, we present a method for defining the perceptually optimal backlight level via subjective experimentation. As expected, the results show a clear correlation between image brightness and optimal backlight intensity; however, a large range of individual preferences was observed.

Original language	English
Title of host publication	2013 Fifth International Workshop on Quality of Multimedia Experience (QoMEX)
Publisher	IEEE
Publication date	2013
Pages	118-123
ISBN (Print)	978-1-4799-0738-0
DOIs	https://doi.org/10.1109/QoMEX.2013.6603221
Publication status	Published - 2013
Event	5th International Workshop on Quality of Multimedia Experience (QoMEX 2013) - Klagenfurt am Wörthersee, Austria Duration: 3 Jul 2013 → 5 Jul 2013 http://www.qomex2013.org/

Workshop

Workshop	5th International Workshop on Quality of Multimedia Experience (QoMEX 2013)
Country/Territory	Austria
City	Klagenfurt am Wörthersee
Period	03/07/2013 → 05/07/2013
Internet address	http://www.qomex2013.org/

Access to Document

10.1109/QoMEX.2013.6603221

OpenUrl availability

Check availability in DTU Findit

Cite this

@inproceedings{504f12748ed0496ca4f78a9f4d9450ab,

title = "Searching for the preferred backlight intensity in liquid crystal displays with local backlight dimming",

abstract = "Local backlight dimming is one of the most promising techniques for reducing power consumption and improving contrast characteristics of liquid crystal displays (LCD). In practice, due to light diffusion and a smaller number of backlight sources than pixels, local backlight dimming must often trade-off between leakage of light in dark pixels and clipping of luminance in bright pixels. Only few studies have analyzed the subjective preferences between different luminance and contrast levels. In this paper, we present a method for defining the perceptually optimal backlight level via subjective experimentation. As expected, the results show a clear correlation between image brightness and optimal backlight intensity; however, a large range of individual preferences was observed.",

author = "Jari Korhonen and Claire Mantel and Nino Burini and S{\o}ren Forchhammer",

year = "2013",

doi = "10.1109/QoMEX.2013.6603221",

language = "English",

isbn = "978-1-4799-0738-0",

pages = "118--123",

booktitle = "2013 Fifth International Workshop on Quality of Multimedia Experience (QoMEX)",

publisher = "IEEE",

address = "United States",

note = "5th International Workshop on Quality of Multimedia Experience (QoMEX 2013) ; Conference date: 03-07-2013 Through 05-07-2013",

url = "http://www.qomex2013.org/",

}

Korhonen, J, Mantel, C, Burini, N & Forchhammer, S 2013, Searching for the preferred backlight intensity in liquid crystal displays with local backlight dimming. in 2013 Fifth International Workshop on Quality of Multimedia Experience (QoMEX). IEEE, pp. 118-123, 5th International Workshop on Quality of Multimedia Experience (QoMEX 2013), Klagenfurt am Wörthersee, Austria, 03/07/2013. https://doi.org/10.1109/QoMEX.2013.6603221

Searching for the preferred backlight intensity in liquid crystal displays with local backlight dimming. / Korhonen, Jari; Mantel, Claire; Burini, Nino et al.
2013 Fifth International Workshop on Quality of Multimedia Experience (QoMEX). IEEE, 2013. p. 118-123.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

T1 - Searching for the preferred backlight intensity in liquid crystal displays with local backlight dimming

AU - Korhonen, Jari

AU - Mantel, Claire

AU - Burini, Nino

AU - Forchhammer, Søren

PY - 2013

Y1 - 2013

N2 - Local backlight dimming is one of the most promising techniques for reducing power consumption and improving contrast characteristics of liquid crystal displays (LCD). In practice, due to light diffusion and a smaller number of backlight sources than pixels, local backlight dimming must often trade-off between leakage of light in dark pixels and clipping of luminance in bright pixels. Only few studies have analyzed the subjective preferences between different luminance and contrast levels. In this paper, we present a method for defining the perceptually optimal backlight level via subjective experimentation. As expected, the results show a clear correlation between image brightness and optimal backlight intensity; however, a large range of individual preferences was observed.

AB - Local backlight dimming is one of the most promising techniques for reducing power consumption and improving contrast characteristics of liquid crystal displays (LCD). In practice, due to light diffusion and a smaller number of backlight sources than pixels, local backlight dimming must often trade-off between leakage of light in dark pixels and clipping of luminance in bright pixels. Only few studies have analyzed the subjective preferences between different luminance and contrast levels. In this paper, we present a method for defining the perceptually optimal backlight level via subjective experimentation. As expected, the results show a clear correlation between image brightness and optimal backlight intensity; however, a large range of individual preferences was observed.

U2 - 10.1109/QoMEX.2013.6603221

DO - 10.1109/QoMEX.2013.6603221

M3 - Article in proceedings

SN - 978-1-4799-0738-0

SP - 118

EP - 123

BT - 2013 Fifth International Workshop on Quality of Multimedia Experience (QoMEX)

PB - IEEE

T2 - 5th International Workshop on Quality of Multimedia Experience (QoMEX 2013)

Y2 - 3 July 2013 through 5 July 2013

ER -

Searching for the preferred backlight intensity in liquid crystal displays with local backlight dimming

Abstract

Workshop

Access to Document

OpenUrl availability

Fingerprint

Cite this