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 proceedingArticle in proceedingsResearchpeer-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 languageEnglish
Title of host publication2013 Fifth International Workshop on Quality of Multimedia Experience (QoMEX)
PublisherIEEE
Publication date2013
Pages118-123
ISBN (Print)978-1-4799-0738-0
DOIs
Publication statusPublished - 2013
Event5th International Workshop on Quality of Multimedia Experience (QoMEX 2013) - Klagenfurt am Wörthersee, Austria
Duration: 3 Jul 20135 Jul 2013
http://www.qomex2013.org/

Workshop

Workshop5th International Workshop on Quality of Multimedia Experience (QoMEX 2013)
CountryAustria
CityKlagenfurt am Wörthersee
Period03/07/201305/07/2013
Internet address

Cite this

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) (pp. 118-123). IEEE. https://doi.org/10.1109/QoMEX.2013.6603221