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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 22 — Oct. 25, 2010
  • pp: 22842–22849

Transflective fringe-field switching liquid crystal display without any retarder

Jung Hwa Her, Suck Jae Shin, Young Jin Lim, Kyoung Ho Park, Joun Ho Lee, Byeong Koo Kim, Gi-Dong Lee, and Seung Hee Lee  »View Author Affiliations

Optics Express, Vol. 18, Issue 22, pp. 22842-22849 (2010)

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Conventional transflective liquid crystal displays (LCDs) with single cell-gap requires optical compensation films or patterned retarders to balance the optical path-length difference between transmissive and reflective regions. In this paper, novel single cell-gap transflective LCDs driven by fringe electric field without using the compensation film or in-cell retarder have been proposed. The liquid crystal director is aligned parallel to analyzer but makes an angle of 45° with respect to analyzer in reflective region. In addition, the surface pretilt angle in the reflective region is controlled by vertical field and polymerization of an UV curable reactive mesogen at the same time and thus, the effective cell retardation in the reflective region becomes smaller than that in transmissive region. Consequently, without using any compensation film or in-cell retarder, the single cell-gap and single-gamma transflective LCD with high performance is realized.

© 2010 OSA

OCIS Codes
(160.3710) Materials : Liquid crystals
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Optical Devices

Original Manuscript: August 24, 2010
Revised Manuscript: October 7, 2010
Manuscript Accepted: October 7, 2010
Published: October 13, 2010

Jung Hwa Her, Suck Jae Shin, Young Jin Lim, Kyoung Ho Park, Joun Ho Lee, Byeong Koo Kim, Gi-Dong Lee, and Seung Hee Lee, "Transflective fringe-field switching liquid crystal display without any retarder," Opt. Express 18, 22842-22849 (2010)

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