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Optical Engineering

Novel wide viewing liquid crystal display with improved off-axis image quality in a twisted nematic configuration
Author(s): Seongmo Hwang; Jeehong Min; Moon-Gyu Lee; Kyumin Choe; Hwan Young Choi; Yeun-Tae Kim; Seong-Min Cho; Sin-Doo Lee
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Paper Abstract

We developed a novel twisted nematic (TN) liquid crystal display (LCD) having wide viewing angle characteristics through the reduction of the residual liquid crystal phase retardation at oblique angles using an embedded diffusing unit. Compared to a conventional TN panel, this embedded approach provides extended isocontrast contours by more than ±10 deg at a contrast ratio of 100:1 along the horizontal direction and a wide region free of grayscale inversion by a factor of 2 along the vertical direction. Moreover, the off-axis image distortions in our novel LCD are improved by 50% compared to those in a film-compensated TN LCD.

Paper Details

Date Published: 1 November 2009
PDF: 6 pages
Opt. Eng. 48(11) 114001 doi: 10.1117/1.3265524
Published in: Optical Engineering Volume 48, Issue 11
Show Author Affiliations
Seongmo Hwang, SAMSUNG Electronics Semiconductor (Korea, Republic of)
Jeehong Min, SAMSUNG Electronics Semiconductor (Korea, Republic of)
Moon-Gyu Lee, SAMSUNG Electronics Semiconductor (Korea, Republic of)
Kyumin Choe, SAMSUNG Electronics Semiconductor (Korea, Republic of)
Hwan Young Choi, SAMSUNG Electronics Semiconductor (Korea, Republic of)
Yeun-Tae Kim, Seoul National Univ. (Korea, Republic of)
Seong-Min Cho, Seoul National Univ. (Korea, Republic of)
Sin-Doo Lee, Seoul National Univ. (Korea, Republic of)


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