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

  • US 7,023,510 B2
  • Filed: 10/19/2004
  • Issued: 04/04/2006
  • Est. Priority Date: 04/23/1997
  • Status: Expired due to Term
First Claim
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1. A reflective 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 positive dielectric anisotropy; and

    a circular polarizing unit comprising a linear polarizer and at least one optical retardation compensator unit, said circular polarizer unit selectively passes either right handed or left handed substantially circularly polarized light out of natural light in the visible spectrum; and

    said at least one optical retardation compensator unit being provided between the linear polarizer and the liquid crystal layer to minimize influence from a residual phase difference of the liquid crystal layer,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.

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