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Backlight unit and display device having backlight unit

  • US 10,030,845 B2
  • Filed: 11/02/2015
  • Issued: 07/24/2018
  • Est. Priority Date: 10/31/2014
  • Status: Active Grant
First Claim
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1. A backlight unit comprising:

  • a frame including a bottom and a sidewall extending from the bottom;

    at least one substrate located on the frame, and a plurality of light sources mounted on the at least one substrate; and

    a reflecting sheet located on the at least one substrate,wherein the reflecting sheet comprises;

    a first sheet part located on the bottom, the first sheet part including a plurality of holes corresponding to the plurality of the light sources; and

    a second sheet part extending from the first sheet part, the second sheet part including a horizontal dot area located along a long side of the reflecting sheet and a vertical dot area located along a short side of the reflecting sheet, and at least one of the horizontal dot area and the vertical dot area comprising first and second areas,wherein the first areas are respectively located corresponding to outermost holes among the plurality of holes disposed along at least one of the long side or short side of the reflecting sheet,wherein the second areas are located between the first areas,wherein the first areas and the second areas each have a plurality of subdot areas,wherein each of the subdot areas includes a plurality of dots with a same size,wherein the first and second areas each include a first subdot area of the plurality of subdot areas located nearest to an imaginary line connecting the outermost holes,wherein the first subdot area of the first areas is closer to the imaginary line than the first subdot area of the second areas, andwherein the first subdot area of the first areas is aligned with a perpendicular line with respect to the imaginary line.

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