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Liquid crystal display apparatus comprising a reflection sheet having a higher degree of freedom of movement in a direction along its surface

  • US 8,339,540 B2
  • Filed: 05/24/2011
  • Issued: 12/25/2012
  • Est. Priority Date: 05/27/2010
  • Status: Active Grant
First Claim
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1. A liquid crystal display apparatus, comprising:

  • a liquid crystal display panel;

    a plurality of light emitting diodes serving as backlight light sources of the liquid crystal display panel;

    an LED substrate on which the plurality of light emitting diodes are mounted;

    a reflection sheet made of a material having a coefficient of thermal expansion different from a coefficient of thermal expansion of the LED substrate and overlaid on a surface of the LED substrate on which the plurality of light emitting diodes are mounted; and

    a fixing member and a retaining member which extend through the reflection sheet and the LED substrate so as to fix the reflection sheet and the LED substrate to each other, wherein;

    the reflection sheet comprises a fixing hole into which the fixing member is inserted, a retaining hole into which the retaining member is inserted, and a plurality of LED holes within which the plurality of light emitting diodes are disposed, respectively;

    retaining of the reflection sheet by the retaining member has, compared to fixing of the reflection sheet by the fixing member, a higher degree of freedom of movement in a direction along a surface of the reflection sheet; and

    the plurality of LED holes located in positions far from the fixing hole are larger than the plurality of LED holes located in positions close to the fixing hole.

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