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Reflective liquid crystal display device and reflective liquid crystal display device incorporating touch panel arranged therefrom

  • US 6,958,794 B2
  • Filed: 10/19/2004
  • Issued: 10/25/2005
  • Est. Priority Date: 04/23/1997
  • Status: Expired due to Term
First Claim
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1. A liquid crystal display device, comprising:

  • a first substrate having a light reflectibility;

    a second substrate having a light transmissibility;

    a liquid crystal layer sandwiched between the first substrate and the second substrate, the liquid crystal layer being composed of twist-aligned nematic liquid crystal having a dielectric anisotropy; and

    a circular polarizing unit that selectively passes either right handed or left handed substantially circularly polarized light out of a plurality of wavelengths of natural light in the visible spectrum,wherein,the circular polarizing unit is disposed such that a major surface of the circular polarizing unit is on a liquid crystal layer side, the substantially circularly polarized light exiting the circular polarizing unit through the major surface when natural light enters the circular polarizing unit, andwherein, said incoming substantially circularly polarized light being linearly polarized at a surface of said first substrate in a plurality of directions respectively representative of said plurality of wave lengths of said natural light to thereby create a display.

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