Adaptive one-dimensional dimming technique for liquid crystal displays with low power consumption and high image quality

Seung-Ryeol Kim; Seung-Woo Lee

doi:10.1117/1.OE.54.7.073111

23 July 2015 Adaptive one-dimensional dimming technique for liquid crystal displays with low power consumption and high image quality

Seung-Ryeol Kim, Seung-Woo Lee

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Optical Engineering, Vol. 54, Issue 7, 073111 (July 2015). https://doi.org/10.1117/1.OE.54.7.073111

Abstract

An adaptive one-dimensional (1-D) dimming technique for liquid crystal displays that compensates for nonuniform backlight distribution is proposed. Dimming techniques that do not consider luminance distribution may cause severe visual artifacts, such as a block artifact. However, an adaptive 1-D dimming technique that considers luminance distribution can reduce power consumption without causing any visual artifacts. Hardware implementation results verified that our method achieved lower power consumption compared to nondimming techniques and removed block artifacts from International Electrotechnical Commission 62087 standard images. The power consumption using the proposed method ranged from 85.5% to 94.7% compared to nondimming techniques. Furthermore, the contrast ratio increased by up to 231% and 165% on average compared to nondimming techniques.

CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Seung-Ryeol Kim and Seung-Woo Lee "Adaptive one-dimensional dimming technique for liquid crystal displays with low power consumption and high image quality," Optical Engineering 54(7), 073111 (23 July 2015). https://doi.org/10.1117/1.OE.54.7.073111

Published: 23 July 2015

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