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Liquid Crystal Display Apparatus

  • US 20070206131A1
  • Filed: 01/18/2006
  • Published: 09/06/2007
  • Est. Priority Date: 01/18/2005
  • Status: Active Grant
First Claim
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1. A liquid crystal display apparatus comprising:

  • a first substrate;

    a second substrate;

    a reflective polarizer, mounted on said first substrate and having a first transmission axis and a first reflection axis at right angles to each other, for transmitting linearly polarized light vibrating in a plane parallel to said first transmission axis and for reflecting linearly polarized light vibrating in a plane parallel to said first reflection axis;

    a polarizer, mounted on said second substrate and having a second transmission axis, for transmitting linearly polarized light vibrating in a plane parallel to said second transmission axis; and

    a liquid crystal layer provided between said first and second substrates, and having a first mode which causes the direction of polarization of incident light to change by utilizing birefringence and a second mode which does not utilize birefringence and therefore does not cause the direction of polarization of incident light to change, wherein a display state is switched between a bright display state and a dark display state by applying a voltage to said liquid crystal layer, and said bright display state is produced by driving said liquid crystal layer in said second mode.

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