Electronic device having fingerprint sensor

1. An electronic device comprising:

a window configured to form a first surface of the electronic device facing a first direction, wherein at least a part of the first surface is a display area, and at least a part of the display area is a fingerprint sensing area;

a display panel disposed under the display area in a space between the first surface and a second surface of the electronic device facing a second direction opposite the first direction and configured to output an image through the display area;

a touch sensor disposed under the display area in the space and configured to output a signal in response to contact of a conductive object on the display area; and

a fingerprint sensor disposed under the fingerprint sensing area in the space and configured to output a signal in response to contact of a fingerprint on the fingerprint sensing area,

wherein the fingerprint sensor is disposed on part of a bottom surface of the window,

wherein the part of the bottom surface of the window is a region located under the fingerprint sensing area,

wherein the bottom surface of the window faces a direction opposite the display area,

wherein the part of the bottom surface of the window is lower than another part of the bottom surface of the window when viewed from the second surface, and

wherein a substrate on which the fingerprint sensor is disposed is attached to the part of the bottom surface of the window.

2. The electronic device of claim 1 , wherein the part is etched at the bottom surface of the window, and the substrate and the fingerprint sensor are attached to the etched part.

3. The electronic device of claim 1 ,

wherein the part of the bottom surface of the window is filled in with a transparent dielectric material, and

wherein the substrate is attached to the transparent dielectric material.

4. The electronic device of claim 1 , wherein the electronic device further includes another substrate having vias extending therethough, and

wherein the vias are configured to electrically connect the fingerprint sensor disposed on one surface of the substrate and wirings formed on another surface of other the substrate.

5. The electronic device of claim 1 , wherein the electronic device further includes a controller electrically connected to the fingerprint sensor, and

wherein the controller is attached to a part of a bottom surface of the window located outside the display area.

6. The electronic device of claim 5 , wherein the part of the bottom surface of the window is printed so that the controller is not exposed.

7. The electronic device of claim 1 , wherein the electronic device further includes:

a first substrate disposed under the window and having the fingerprint sensor disposed thereon, and

a second substrate disposed between the first substrate and the display panel and having the touch sensor disposed thereon.

8. The electronic device of claim 1 , wherein the electronic device further includes another substrate disposed between the window and the display panel,

wherein the touch sensor is disposed on a first part of one surface of the other substrate, and the fingerprint sensor is formed on a second part of the one surface of other the substrate, the second part being different from the first part,

wherein the first and second parts define an entire region located under the display area,

wherein the second part is a region located under the fingerprint sensing area, and

wherein the fingerprint sensor outputs a signal in response to contact of the conductive object on the fingerprint sensing area.

9. The electronic device of claim 1 , wherein the electronic device further includes another substrate disposed between the window and the display panel,

wherein the touch sensor is disposed on one surface of the other substrate, and

wherein at least a part of patterns of the touch sensor is configured to be used as the fingerprint sensor.

10. The electronic device of claim 1 , wherein the electronic device further includes a substrate disposed between the window and the display panel and having the touch sensor disposed thereon.

11. The electronic device of claim 1 , wherein the touch sensor is disposed on another part of the bottom surface of the window, the other part being different from the part,

wherein the parts define an entire region located under the display area,

wherein the fingerprint sensor is configured to output a signal in response to contact of the conductive object on the fingerprint sensing area.

12. The electronic device of claim 1 , wherein the touch sensor is disposed on a bottom surface of the window,

wherein at least a part of patterns of the touch sensor are configured to be used as the fingerprint sensor.

13. The electronic device of claim 1 , wherein the electronic device further includes a substrate disposed between the window and the display panel and having the fingerprint sensor disposed thereon,

wherein the touch sensor is disposed on a top surface of the display panel, and

wherein the top surface of the display panel faces the window.

14. The electronic device of claim 1 , wherein the electronic device further includes another substrate disposed between the window and the display panel,

wherein the fingerprint sensor is disposed on a part of one surface of the other substrate,

wherein the touch sensor is disposed on another surface of the other substrate, and

wherein the window and the substrate are formed of glass.

15. The electronic device of claim 1 , wherein the electronic device further includes a glass layer disposed between the window and the display panel, and

wherein the window is formed of glass.