Display device
A display device according to an embodiment includes a display panel and a protection layer that is disposed on the display panel, wherein the protection layer includes: a first protection layer; a metal layer that overlaps the first protection layer and includes a hole; and an adhesive layer disposed between the first protection layer and the metal layer. The adhesive layer includes a first area disposed between the first protection layer and the metal layer, and a second area and a third area that are disposed in the hole, wherein a peeling strength of the second area and a peeling strength of the third area are different from each other.
1. A display device comprising:
a display panel; and
a protection layer disposed on the display panel, the protection layer comprising:
a first protection layer;
a metal layer that overlaps the first protection layer and includes a hole; and
an adhesive layer disposed between the first protection layer and the metal layer, the adhesive layer comprising:
a first area disposed between the first protection layer and the metal layer; and
a second area and a third area that are disposed in the hole, wherein a peeling strength of the second area and a peeling strength of third area are different from each other,
wherein
the peeling strength of the third area is about zero.
2. The display device of claim 1 , wherein the peeling strength of the second area is greater than the peeling strength of the third area.
3. The display device of claim 1 , further comprising a second protection layer disposed between the first protection layer and the metal layer.
4. The display device of claim 1 , wherein the adhesive layer comprises an acryl-based adhesive material.
5. The display device of claim 4 , wherein the acryl-based adhesive material comprises at least one of 2-ethylhexyl acrylate (2-EHA), 2-hydroxyethyl acrylate (2-HEA), isobornyl acrylate (IBoA), isobornyl methacrylate, isooctyl acrylate (IOA), n-octyl acrylate, n-butyl acrylate (n-BA), vinyl acetate (VAC), cyclohexyl acrylate (CHA), tetrahydrofurfuryl acrylate (THFA), 4-acryloylmorpholine, lauryl acrylate, and urethane acrylate.
6. The display device of claim 1 , wherein the adhesive layer has a modulus of about 0.001 MPa to about 0.250 MPa at 25° C.
7. The display device of claim 1 , wherein the first area and the second area independently comprise at least one of poly(isobornyl acrylate) (PiBoA) and poly(tert-butyl acrylate) (PtBA).
8. The display device of claim 7 , wherein the first area and second area independently further comprise a photoacid generator.
9. The display device of claim 8 , wherein the photoacid generator comprises at least one of N-trifluoromethylsulfonyloxy-1,8-naphthalimide and bis(cyclohexyl sulfonyl)diazomethane.
10. The display device of claim 7 , wherein the third area further comprises at least one of camphene and isobutene.
11. A display device comprising:
a display panel; and
a protection layer disposed on the display panel, the protection layer comprising:
a first protection layer;
a second protection layer disposed on the first protection layer;
a metal layer disposed on the second protection layer and includes a plurality of holes; and
an adhesive layer disposed between the second protection layer and the metal layer, the adhesive layer comprising:
a first area disposed between the first protection layer and the metal layer; and
a second area and a third area that are disposed in the plurality of holes, wherein
a peeling strength of the second area and a peeling strength of third area are different from each other,
a bending axis of the display device overlaps the plurality of holes, and
the third area further comprises at least one of camphene and isobutane.
12. The display device of claim 11 , wherein the peeling strength of the second area is greater than the peeling strength of the third area.
13. The display device of claim 11 , wherein the adhesive layer comprises an acryl-based adhesive material.
14. The display device of claim 13 , wherein the acryl-based adhesive material comprises at least one of 2-ethylhexyl acrylate (2-EHA), 2-hydroxyethyl acrylate (2-HEA), isobornyl acrylate (IBoA), isobornyl methacrylate, isooctyl acrylate (IOA), n-octyl acrylate, n-butyl acrylate (n-BA), vinyl acetate (VAC), cyclohexyl acrylate (CHA), tetrahydrofurfuryl acrylate (THFA), 4-acryloylmorpholine, lauryl acrylate, and urethane acrylate.
15. The display device of claim 11 , wherein the adhesive layer has a modulus of about 0.001 MPa to about 0.250 MPa at 25° C.
16. The display device of claim 11 , wherein the first area and the second area independently comprise at least one of poly(isobornyl acrylate) (PiBoA) and poly(tert-butyl acrylate) (PtBA).
17. The display device of claim 16 , wherein the first area and the second area independently further comprise at least one of N-trifluoromethylsulfonyloxy-1,8-naphthalimide and bis(cyclohexyl sulfonyl)diazomethane.