Foldable organic light emitting display device including cushion filled opening
An organic light emitting display device includes a display panel, a support layer, a coating layer, and a cushion layer. The display panel includes a foldable area. The support layer is disposed on a bottom surface of the display panel, and a plurality of openings is defined through the support layer on the foldable area. The coating layer is disposed on a top surface of the support layer and side walls of the support member which define the openings. The cushion layer is disposed between the coating layer and the display panel.
1 . An organic light emitting display device comprising:
a display panel including a foldable area;
a support layer disposed on a bottom surface of the display panel, wherein at least one opening is defined through the support layer on the foldable area;
a cushion layer disposed between the support layer and the display panel, the at least one opening of the support layer being filled with the cushion layer; and
an adhesive layer disposed between an upper major surface plane defining the support layer and a lower major surface plane defining the cushion layer.
2 . The organic light emitting display device of claim 1 , wherein the cushion layer includes a polyurethane.
3 . The organic light emitting display device of claim 1 , wherein the cushion layer is in direct contact with the adhesive layer.
4 . The organic light emitting display device of claim 1 , wherein the adhesive layer is disposed to improve an adhesion between the support layer and the cushion layer.
5 . The organic light emitting display device of claim 4 , wherein the adhesive layer includes polyisocyanate and polyol.
6 . The organic light emitting display device of claim 4 , wherein the adhesive layer has a thickness smaller than a thickness of the cushion layer.
7 . The organic light emitting display device of claim 1 , further comprising:
a first adhesive member disposed between the display panel and the cushion layer.
8 . The organic light emitting display device of claim 1 , wherein
the display panel further includes a display area, and
the foldable area is defined by a part of the display area.
9 . An organic light emitting display device comprising:
a display panel including a foldable area;
a support layer disposed on a bottom surface of the display panel, wherein at least one opening is defined through the support layer on the foldable area;
a cushion layer disposed between the support layer and the display panel, the at least one opening of the support layer being filled with the cushion layer;
a first adhesive member disposed between the display panel and the cushion layer; and
an adhesive layer disposed to improve an adhesion between the support layer and the cushion layer.
10 . An organic light emitting display device comprising:
a display panel including a foldable area;
a support layer disposed on a bottom surface of the display panel, wherein at least one opening is defined through the support layer on the foldable area;
a cushion layer disposed between the support layer and the display panel, the at least one opening of the support layer being filled with the cushion layer; and
an adhesive layer disposed between an upper major surface plane defining the support layer and a lower major surface plane defining the cushion layer,
wherein the display panel includes:
a substrate;
a semiconductor element disposed on the substrate;
a planarization layer disposed on the semiconductor element;
a light emitting element disposed on the planarization layer and including a lower electrode, a light emitting layer, an upper electrode, and a pixel defining layer; and
a thin film encapsulation layer disposed on the light emitting element.
11 . The organic light emitting display device of claim 10 , wherein the adhesive layer is disposed to improve an adhesion between the support layer and the cushion layer.