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Liquid-crystal display apparatus and electronic device

  • US 7,333,165 B2
  • Filed: 05/05/2006
  • Issued: 02/19/2008
  • Est. Priority Date: 05/11/2005
  • Status: Expired due to Fees
First Claim
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1. A liquid-crystal display apparatus comprising:

  • a liquid-crystal panel having a color filter;

    a plurality of first white light sources for irradiating first white light to said liquid-crystal panel;

    a plurality of second white light sources for irradiating second white light different from the first white light to said liquid-crystal panel;

    illuminance detecting means for detecting ambient illuminance of said liquid-crystal panel to output a detected signal; and

    light source control means for switching said first and second light sources based on the detected signal from said illuminance detecting means;

    wherein the plurality of first and second white light sources are interposed in a backlight array and aligned to illuminate a back side of said liquid-crystal panel;

    wherein each first white light source includes a blue light-emitting diode, a yellow fluorescent material, and a first reflecting layer and each second white light source includes an arbitrary-color light-emitting diode, a mixed-color fluorescent material, and a second reflecting layer.

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