Display device

1. A display device comprising:

a display panel configured to display an image;

a window substrate above the display panel, and comprising:

a display area configured to transmit the image therethrough; and

a non-display area around the display area;

a first adhesive layer between the display panel and the window substrate; and

a decoration film above an upper surface of the window substrate, and comprising:

a base film; and

a printing layer at a first surface of the base film,

wherein at least a portion of the decoration film is above the display area of the window substrate, and

wherein a thickness of the display device between an outermost portion of the display device and a surface of the decoration film is less than a thickness of the window substrate.

2. The display device of claim 1 , wherein the window substrate comprises a plastic substrate.

3. The display device of claim 1 , further comprising a hard coating layer at a second surface of the base film.

4. The display device of claim 1 , further comprising a step-difference compensation layer surrounded by portions of the printing layer at a lower surface of the decoration film.

5. The display device of claim 1 , further comprising a second adhesive layer between the window substrate and the decoration film.

6. The display device of claim 5 , wherein the printing layer contacts the second adhesive layer.

7. The display device of claim 1 , wherein the printing layer corresponds to the non-display area.

8. The display device of claim 7 , further comprising an auxiliary adhesive layer at a lower surface of the printing layer.

9. The display device of claim 8 , wherein the auxiliary adhesive layer contacts a second adhesive layer between the window substrate and the decoration film.

10. The display device of claim 1 , wherein the printing layer comprises:

a first décor printing layer on the first surface of the base film; and

a light blocking printing layer on the first décor printing layer.

11. The display device of claim 10 , wherein the light blocking printing layer contacts a second adhesive layer between the window substrate and the decoration film.

12. The display device of claim 10 , wherein the first décor printing layer comprises a white printing layer.

13. The display device of claim 10 , wherein the light blocking printing layer comprises a black printing layer.

14. The display device of claim 10 , wherein the printing layer further comprises a second décor printing layer between the light blocking printing layer and the first décor printing layer.

15. The display device of claim 14 , wherein the second décor printing layer comprises a pearl pigment and has a transparent color.

16. A display device comprising:

a display panel configured to display an image, the display panel comprising:

a first substrate;

a capping layer on the first substrate; and

a thin film encapsulation layer on the capping layer;

a window substrate above the display panel, and comprising:

a display area configured to transmit the image therethrough; and

a non-display area around the display area;

a first adhesive layer between the display panel and the window substrate; and

a decoration film above an upper surface of the window substrate, and comprising:

a base film; and

a printing layer at a first surface of the base film.

17. The display device of claim 16 , further comprising a polarizer on the thin film encapsulation layer and facing the window substrate.

18. The display device of claim 17 , wherein the first adhesive layer is between the polarizer and the window substrate.

19. The display device of claim 17 , further comprising a touch screen panel on the polarizer.

20. The display device of claim 16 , wherein the display panel comprises an organic light emitting diode (OLED) display panel.