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Rollable display device

  • US 10,211,426 B2
  • Filed: 06/04/2018
  • Issued: 02/19/2019
  • Est. Priority Date: 02/02/2015
  • Status: Active Grant
First Claim
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1. A display device comprising a flexible display unit configured to be wound in a roll shape, the flexible display unit comprising:

  • a flexible substrate;

    a display layer on the flexible substrate;

    a thin-film encapsulation layer sealing the display layer;

    a functional layer on the thin-film encapsulation layer; and

    an adhesive layer between the thin-film encapsulation layer and the functional layer, the adhesive layer comprising a base and a plurality of modulus adjusting areas having a line shape in a region of the base,wherein the plurality of modulus adjusting areas are separated from each other along a first direction to form a stripe pattern,wherein the base and the plurality of modulus adjusting areas comprise a same material, andwherein a first modulus of the base is greater than a second modulus of the plurality of modulus adjusting areas;

    wherein the base and the plurality of modulus adjusting areas are alternately arranged on a surface of the adhesive layer in the first direction, andwherein the plurality of modulus adjusting areas extend in a depth direction of the adhesive layer from the surface of the adhesive layer.

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