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Journal of Display Technology

Journal of Display Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 4, Iss. 2 — Jun. 1, 2008
  • pp: 129–138

Wide-View and Broadband Circular Polarizers for Transflective Liquid Crystal Displays

Zhibing Ge, Meizi Jiao, Ruibo Lu, Thomas X. Wu, Shin-Tson Wu, Wang-Yang Li, and Chung-Kuang Wei

Journal of Display Technology, Vol. 4, Issue 2, pp. 129-138 (2008)


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Abstract

A simple wide-view and broadband circular polarizer comprising of a linear polarizer and two uniaxial films is proposed to enhance the viewing angle of transflective liquid crystal displays (LCDs). For the transmissive mode, over the entire 90$^{\circ}$ viewing cone, the normalized light leakage from two stacked circular polarizers is suppressed to below 1.5$\times {\hbox{10}} ^{-2}$, and contrast ratio over 10:1 is obtained using a normally black vertically aligned transflective LCD. At the same time, this configuration warrants a broadband operation and reasonably good viewing angle (10:1 contrast ratio is over 40$^{\circ}$ at all directions) for the reflective mode. The physical mechanisms for achieving broadband operation and wide viewing angle are discussed.

© 2008 IEEE

Citation
Zhibing Ge, Meizi Jiao, Ruibo Lu, Thomas X. Wu, Shin-Tson Wu, Wang-Yang Li, and Chung-Kuang Wei, "Wide-View and Broadband Circular Polarizers for Transflective Liquid Crystal Displays," J. Display Technol. 4, 129-138 (2008)
http://www.opticsinfobase.org/jdt/abstract.cfm?URI=jdt-4-2-129

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