Display device
A display device according to an embodiment includes a display panel, a touch module located on the display panel, a cover film located on the touch module, a first adhesive layer located between the display panel and the touch module, and a second adhesive layer located between the touch module and the cover film, wherein a thickness ratio of the first adhesive layer and the second adhesive layer with respect to a thickness of the display device is in a range of 7% to 40%.
1. A display device comprising:
a display panel;
a touch module located on the display panel;
a cover film located on the touch module;
a first adhesive layer located between the display panel and the touch module; and
a second adhesive layer located between the touch module and the cover film,
wherein a thickness ratio of the first adhesive layer and the second adhesive layer with respect to a thickness of the display device is in a range of 7% to 40%,
wherein a folding stress of the display device is equal to or less than 160 Mega-Pascal (Mpa), and
wherein the folding stress of the display device is defined by Equation 1 as follows:
σ
=
E
f
_
[
ɛ
bot
+
z
h
(
ɛ
top
-
ɛ
bot
)
]
.
[
Equation
1
]
2. The display device of claim 1 , wherein a modulus of elasticity of the display device is equal to or greater than 2600 Mpa.
3. The display device of claim 1 , wherein the touch module includes a light conversion layer.
4. The display device of claim 3 , wherein the light conversion layer includes one of a polarizing plate and a retardation film.
5. The display device of claim 1 , wherein the display panel is an organic light emitting display panel.
6. The display device of claim 1 , wherein the first adhesive layer and the second adhesive layer include an optically clear adhesive.