Display device and electronic device having the same
A display device includes: a window; a display panel comprising a first display area and a second display area having a pixel density less than that of the first display area, the display panel being under the window; a protective layer under the display panel; and a lower layer in which a first opening corresponding to the second display area is defined and which is under the protective layer, wherein a portion of the protective layer, which corresponds to the second display area, has a haze of 4% or less, a wavefront peak valley value of 0.05 or more and 2.00 or less, a wavefront root mean square value of 0.01 or more and 0.40 or less.
1. A display device comprising:
a window;
a display panel comprising a first display area and a second display area having a pixel density less than that of the first display area, the display panel being under the window;
a protective layer under the display panel; and
a lower layer in which a first opening corresponding to the second display area is defined and which is under the protective layer,
wherein a portion of the protective layer, which corresponds to the second display area, has a haze of 4% or less, a wavefront peak valley value of 0.05 or more and 2.00 or less, a wavefront root mean square value of 0.01 or more and 0.40 or less.
2. The display device of claim 1 , wherein the protective layer comprises a synthetic resin film and an adhesive layer between the synthetic resin film and the display panel.
3. The display device of claim 2 , wherein the synthetic resin film overlaps the first display area and the second display area.
4. The display device of claim 1 , wherein the protective layer comprises a synthetic resin layer that is directly on a bottom surface of the display panel.
5. The display device of claim 4 , wherein the synthetic resin layer overlaps the first display area and the second display area.
6. The display device of claim 1 , wherein the protective layer comprises:
a synthetic resin film having a second opening corresponding to the second display area; and
a synthetic resin layer inside the second opening.
7. The display device of claim 1 , wherein the protective layer comprises at least one of polyethylene terephthalate, polyurethane, or polyethylene.
8. The display device of claim 1 , wherein a light emitting element on the first display area has a density greater than that on the second display area.
9. The display device of claim 1 , wherein the lower layer comprises a metal plate.
10. The display device of claim 1 , wherein the first display area comprises a plurality of first unit pixel areas,
the second display area comprises a plurality of second unit pixel areas and a plurality of non-unit pixel areas,
the plurality of second unit pixel areas comprise an insulating layer overlapping the second display area and a light emitting element on the insulating layer, and
each of the plurality of non-unit pixel areas comprises an opening defined in the insulating layer.
11. The display device of claim 10 , wherein each of the plurality of first unit pixel areas and the plurality of second unit pixel areas comprises at least three emission areas, and
each of the non-unit pixel areas has a surface area greater than a sum of surface areas of at least two emission areas of the three emission areas.
12. The display device of claim 1 , wherein a modulation transfer function value of an image of a subject outside the window, which is photographed by a camera module that is under the lower layer to correspond to the first opening is 60% or more.
13. A display device comprising:
a window;
a display panel comprising a first display area and a second display area having a pixel density less than that of the first display area, the display panel being under the window;
a protective layer under the display panel; and
a lower layer in which a first opening corresponding to the second display area is defined and which is under the protective layer,
wherein the protective layer comprises:
a synthetic resin film corresponding to the first display area and in which a second opening corresponding to the second display area is defined; and
a synthetic resin layer inside the second opening,
wherein the synthetic resin layer has an elastic modulus less than that of the synthetic resin film, and
the synthetic resin layer has a haze less than that of the synthetic resin film,
wherein the synthetic resin layer has a wavefront peak valley value of 0.05 or more and 2.00 or less.
14. The display device of claim 13 , wherein the synthetic resin layer has a haze of 4% or less.
15. The display device of claim 13 , wherein the synthetic resin layer has a wavefront root mean square value of 0.01 or more and 0.40 or less.
16. The display device of claim 13 , wherein a modulation transfer function value of an image of a subject outside the window, which is photographed by a camera module that is under the lower layer to correspond to the first opening is 60% or more.
17. The display device of claim 13 , wherein an adhesive layer is between the synthetic resin film and a bottom surface of the display panel, and
the synthetic resin layer is directly on the bottom surface of the display panel.
18. The display device of claim 17 , wherein a third opening corresponding to the second opening is in the adhesive layer.
19. An electronic device comprising:
a display device comprising a first display area and a second display area having a pixel density less than that of the first display area;
a camera module under the display device to correspond to the second display area; and
a housing coupled to the display device to accommodate the camera module,
wherein a modulation transfer function value of an image of a subject outside the display device, which is photographed by the camera module is 60% or more at a frequency of 110 LP/mm, and
a protective layer in a path along which light reflected from the subject is incident into the camera module has a haze of 4% or less and a wavefront peak valley value of 0.05 or more and 2.00 or less.