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Optical Engineering • Open Access

Adaptive one-dimensional dimming technique for liquid crystal displays with low power consumption and high image quality
Author(s): Seung-Ryeol Kim; Seung-Woo Lee

Paper 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.

Paper Details

Date Published: 23 July 2015
PDF: 6 pages
Opt. Eng. 54(7) 073111 doi: 10.1117/1.OE.54.7.073111
Published in: Optical Engineering Volume 54, Issue 7
Show Author Affiliations
Seung-Ryeol Kim, Kyung Hee Univ. (Korea, Republic of)
Seung-Woo Lee, Kyung Hee Univ. (Korea, Republic of)

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