• Title/Summary/Keyword: Gray inversion

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Dark-state Color Shift and Gray Scale Inversion in an In-plane Switching Liquid Crystal Display Device

  • Park, Sung Il;Park, Kyoung-Ho;Lee, Joun-Ho;Yoon, Jeong Hwan;Kim, Byeong Koo;Yu, Byeong-Hun;Kim, Ki-Han;Yoon, Tae-Hoon
    • Journal of the Optical Society of Korea
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    • v.16 no.4
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    • pp.409-413
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    • 2012
  • Off-axis color shift in the dark state and gray scale inversion in an in-plane switching (IPS) liquid crystal display (LCD) device were investigated. Analyses were performed using the Poincar$\acute{e}$ sphere representation. The results show that color shift in the dark state and gray scale inversion in an IPS LCD can be reduced by using a biaxial film. We confirmed the extent of these improvements by measuring the optical performance of a fabricated IPS LCD.