Novel wide viewing liquid crystal display with improved off-axis image quality in a twisted nematic configuration

Seongmo Hwang; Jeehong Min; Moon-Gyu Lee; Kyumin Choe; Hwan Young Choi; Yeun-Tae Kim; Seong-Min Cho; Sin-Doo Lee

doi:10.1117/1.3265524

1 November 2009 Novel wide viewing liquid crystal display with improved off-axis image quality in a twisted nematic configuration

Seongmo Hwang, Jeehong Min, Moon-Gyu Lee, Kyumin Choe, Hwan Young Choi, Yeun-Tae Kim, Seong-Min Cho, Sin-Doo Lee

Author Affiliations +

Optical Engineering, Vol. 48, Issue 11, 114001 (November 2009). https://doi.org/10.1117/1.3265524

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.

©(2009) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Seongmo Hwang, Jeehong Min, Moon-Gyu Lee, Kyumin Choe, Hwan Young Choi, Yeun-Tae Kim, Seong-Min Cho, and Sin-Doo Lee "Novel wide viewing liquid crystal display with improved off-axis image quality in a twisted nematic configuration," Optical Engineering 48(11), 114001 (1 November 2009). https://doi.org/10.1117/1.3265524

Published: 1 November 2009

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