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Transflective display having improved contrast

  • US 7,760,296 B2
  • Filed: 09/03/2004
  • Issued: 07/20/2010
  • Est. Priority Date: 09/19/2003
  • Status: Active Grant
First Claim
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1. A transflective liquid crystal display device comprising:

  • a front substrate, a liquid crystal layer, a transflector, a rear substrate, rear polarizing means, and a backlight, sandwiched in said order, wherein the front substrate and rear substrate form a liquid crystal cell having the liquid crystal layer therebetween;

    said backlight being operative to emit light towards said transflector;

    said transflector being transmissive for a first part of said light and non-transmissive for a second part of said light; and

    said rear polarizing means being operative to transmit light having a first polarization and to reflect light having a second polarization, opposite to said first polarization;

    wherein said display device further comprising reflection preventing means arranged between said transflector and said rear polarizing means, and arranged between the front substrate and the rear substrate within the liquid crystal cell;

    said reflection preventing means being operative to prevent said second part of light from propagating back towards said rear polarizing means.

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