Wide-view and broadband circular polarizers for transflective liquid crystal displays

    Authors

    Z. B. Ge; M. Z. Jiao; R. B. Lu; T. X. Wu; S. T. Wu; W. Y. Li;C. K. Wei

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    J. Disp. Technol.

    Keywords

    broadband; circular polarizer; liquid crystal display (LCD); transflective; wide-viewing angle; Engineering, Electrical & Electronic; Optics; Physics, Applied

    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 viewing cone, the normalized light leakage from two stacked circular polarizers is suppressed to below 1.5 x 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 at all directions) for the reflective mode. The physical mechanisms for achieving broadband operation and wide viewing angle are discussed.

    Journal Title

    Journal of Display Technology

    Volume

    4

    Issue/Number

    2

    Publication Date

    1-1-2008

    Document Type

    Article

    Language

    English

    First Page

    129

    Last Page

    138

    WOS Identifier

    WOS:000259552500004

    ISSN

    1551-319X

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