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Display apparatus

  • US 9,599,869 B2
  • Filed: 12/08/2013
  • Issued: 03/21/2017
  • Est. Priority Date: 01/23/2013
  • Status: Active Grant
First Claim
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1. A display apparatus comprising:

  • a backlight assembly which generates a light; and

    a display panel which receives the light to display an image, the display panel comprising;

    a first substrate;

    a second substrate which faces the first substrate and is disposed closer to the backlight assembly than the first substrate;

    a gate line disposed on the first substrate;

    a data line disposed on the gate line and insulated from the gate line;

    a thin film transistor disposed on the first substrate and electrically connected to the gate line and the data line; and

    a reflection preventing layer which is disposed between the first substrate and the gate line, and the reflection preventing layer reducing an amount of a reflected light reflected by the gate line,wherein the reflection preventing layer comprises a first sub-layer which is disposed on the first substrate and has a first refractive index, and a second sub-layer which is disposed between the first sub-layer and the gate line, and has a second refractive index which is greater than the first refractive index, andwherein the reflected light is an external light reflected by the gate line, and a thickness of the first sub-layer and a thickness of the second sub-layer are obtained based on following equation,
    (d1+d2)≈

    {(λ

    /4)×

    (1/n1)}+{(λ

    /4)×

    (1/n2)},d1 denotes the thickness of the first sub-layer, d2 denotes the thickness of the second sub-layer, λ

    denotes a wavelength of the external light, n1 denotes the first refractive index of the first sub-layer, and n2 denotes the second refractive index of the second sub-layer.

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