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Liquid crystal display device having an improved lighting device

  • US 20040051692A1
  • Filed: 08/08/2003
  • Published: 03/18/2004
  • Est. Priority Date: 10/12/2000
  • Status: Active Grant
First Claim
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1. A liquid crystal display device comprising:

  • a liquid crystal display panel having a plurality of pixels;

    a lighting device having at least one light source and projecting light generated by the at least one light source on the liquid crystal display panel; and

    a circuit supplying a first current during a first period and a second current smaller than the first current during a second period to the at least one light source alternately, wherein the circuit has an ammeter monitoring the first current and the second current and adjusting a ratio of the first period to the second period with reference to a result monitored by the ammeter.

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