Electronic device

1 . An electronic device comprising:

a window;

a panel foldable along a folding axis extending in one direction, below the window, and comprising:

a base layer; and

a display element on the base layer for displaying an image;

at least three adhesive layers between the window and the panel, and comprising:

a first adhesive layer contacting the panel;

a second adhesive layer contacting the window; and

a third adhesive layer between the first adhesive layer and the second adhesive layer;

a polarizing member above the panel and below the window; and

an input sensing member for sensing an external touch, the input sensing member being under the polarizing member,

wherein a sum of thicknesses of the adhesive layers is less than 200 μm,

wherein the third adhesive layer is between the polarizing member and the input sensing member,

wherein the thickness of the second adhesive layer is larger than each of those of the first adhesive layer and the third adhesive layer, and

wherein a radius of curvature of the second adhesive layer is greater than that of the first adhesive layer.

2 . The electronic device of claim 1 , wherein the thickness of the first adhesive layer is equal to or less than ½ of the sum of the thicknesses of the adhesive layers.

3 . The electronic device of claim 1 , wherein the window has a modulus of 55 GPa to 85 GPa.

4 . An electronic device comprising:

a window;

a panel foldable along a folding axis extending in one direction, below the window, and comprising:

a base layer; and

a display element on the base layer for displaying an image;

adhesive layers between the window and the panel; and

a polarizing member above the panel; and

an input sensing member above the panel and below the polarizing member,

wherein the adhesive layers comprise:

a first adhesive layer contacting the panel;

a second adhesive layer between the window and the first adhesive layer and contacting the window; and

a third adhesive layer between the first adhesive layer and the second adhesive layer,

wherein a thickness of the first adhesive layer is equal to or less than ½ of a sum of thicknesses of the adhesive layers,

wherein the third adhesive layer is between the polarizing member and the input sensing member,

wherein the thickness of the second adhesive layer is larger than each of those of the first adhesive layer and the third adhesive layer, and

wherein a radius of curvature of the second adhesive layer is greater than that of the first adhesive layer.

5 . The electronic device of claim 4 , wherein each of the polarizing member and the input sensing member comprises a transparent resin, and wherein the third adhesive layer is between the polarizing member and the input sensing member.

6 . The electronic device of claim 4 , wherein the sum of the thicknesses of the adhesive layers is less than 200 μm, and is equal to or greater than 75 μm.

7 . The electronic device of claim 4 , further comprising:

a protective panel on the window; and

an upper adhesive layer between the protective panel and the window to couple the protective panel and the window to each other.

8 . The electronic device of claim 4 , wherein the window comprises a glass having a modulus of 55 GPa to 85 GPa.

9 . The electronic device of claim 4 , wherein the window has a thickness of 80 μm or less.

10 . The electronic device of claim 4 , wherein the input sensing member is located between the second adhesive layer and the third adhesive layer and comprises a supplementary member.

11 . The electronic device of claim 10 , wherein the supplementary member comprises a transparent resin.

12 . The electronic device of claim 4 , wherein the panel comprises:

a base substrate having modulus of 1 GPa to 10 GPa;

a pixel defining layer on a front surface of the base substrate and comprising a plurality of pixels; and

an encapsulation layer covering the pixel defining layer, and

wherein the panel is configured to display an image on a front surface thereof.

13 . The electronic device of claim 4 , wherein the folding axis is defined on a back surface of the panel,

wherein the folding axis is parallel to the back surface of the panel, and

wherein the panel and the window are foldable along the folding axis.

14 . An electronic device comprising:

a panel, foldable along a folding axis extending in one direction, comprising:

a base layer; and

a display element on the base layer for displaying an image;

a window above a front surface of the panel;

an input sensing member above the panel and below the window;

a polarizing member above the input sensing member and below the window; and

a plurality of adhesive layers between the window and the panel, and comprising:

a first adhesive layer on the panel;

a second adhesive layer between the first adhesive layer and the window, and contacting a lower surface of the window; and

a third adhesive layer between the polarizing member and the input sensing member,

wherein a sum of thicknesses of the adhesive layers is between 75 μm and 200 μm,

wherein a thickness of the first adhesive layer is equal to or less than ½ of the sum of the thicknesses of the adhesive layers,

wherein the thickness of the second adhesive layer is larger than each of those of the first adhesive layer and the third adhesive layer, and

wherein a radius of curvature of the second adhesive layer is greater than that of the first adhesive layer.

15 . An electronic device comprising:

a panel foldable along a folding axis extending in one direction, and comprising:

a base layer; and

a display layer on the base layer for displaying an image;

a window above a front surface of the panel;

a protective layer above a front surface of the window;

a lower panel below a back surface of the panel;

an input sensing member above the panel;

a polarizing member above the input sensing member and below the window; and

a plurality of adhesive layers between the window and the lower panel, and comprising:

a first adhesive layer on the panel;

a second adhesive layer between the first adhesive layer and the window;

a third adhesive layer between the input sensing member and the polarizing member; and

a fourth adhesive layer between the panel and the lower panel,

wherein a sum of thicknesses of the adhesive layers is less than 200 μm,

wherein a thickness of the first adhesive layer is equal to or less than ½ of the sum of the thicknesses of the adhesive layers,

wherein the thickness of the second adhesive layer is larger than each of those of the first adhesive layer and the third adhesive layer, and

wherein a radius of curvature of the second adhesive layer is greater than that of the first adhesive layer.

16 . The electronic device of claim 15 , further comprising an optical member between the panel and the window,

wherein the third adhesive layer is between the optical member and the input sensing member.

17 . The electronic device of claim 15 , wherein the protective layer comprises at least one of polycarbonate (PC), polyethyleneterephthalate (PET), or thermoplastic polyurethane (TPU).

18 . The electronic device of claim 15 , wherein the window comprises:

a first layer including a glass; and

a second layer including a transparent resin and having a modulus that is lower than that of the first layer, and

wherein a sum of thicknesses of the first and second layers is equal to or less than 80 μm.