Electronic device including filler for filling a space between biological sensor disposed under a display and the display

1. An electronic device comprising:

a transparent member comprising a transparent material;

a display panel disposed under the transparent member;

a shock absorption sheet disposed under the display panel, and having an opening formed in a region thereof;

a biological sensor disposed to face the display panel, and disposed in at least a portion of the opening;

a filler comprising a filler material filling at least some space in an opening formed between the biological sensor and the display panel; and

a seal disposed between the biological sensor and the shock absorption member and configured to prevent the filler from being discharged outside the opening,

wherein the seal comprises: an injection inlet disposed at one end of the seal and configured to allow the filler to be drawn in though the injection inlet; and a discharge outlet disposed at another end of the seal and configured to allow air to be discharged through the discharge outlet.

2. The electronic device of claim 1 , wherein the biological sensor comprises at least one of: an ultrasonic sensor and an image sensor.

3. The electronic device of claim 1 , wherein the seal is disposed between the display panel and the biological sensor, and is extended along a circumference of the opening to seal the filler material filling the at least some space.

4. An electronic device comprising:

a transparent member comprising a transparent material;

a display panel disposed under the transparent member;

a biological sensor disposed in a region under the display panel to face the display panel;

a filler comprising a filler material filling at least some space between the biological sensor and the display panel; and

a seal disposed between the biological sensor and the display panel and configured to prevent the filler material from being discharged outside of the at least some space,

wherein the seal comprises: an injection inlet disposed at one end of the seal and configured to allow the filler to be drawn in though the injection inlet; and a discharge outlet disposed at another end of the seal and configured to allow air to be discharged through the discharge outlet.

5. The electronic device of claim 4 , wherein the biological sensor comprises an ultrasonic sensor, and an acoustic transmission coefficient of the filler is equal to an acoustic transmission coefficient of the display panel and an acoustic transmission coefficient of the ultrasonic sensor, or the acoustic coefficient of the filler has a value between the acoustic transmission coefficient of the display panel and the acoustic transmission coefficient of the ultrasonic sensor.

6. The electronic device of claim 4 , wherein the biological sensor comprises a plurality of vibrators, and

wherein the electronic device further comprises an acoustic guide disposed between the plurality of vibrators and the display panel and is configured to guide at least a portion of ultrasonic waves sent from the biological sensor, reflected from an external object contacting the display panel, and received at the biological sensor, to be received at the plurality of vibrators.

7. The electronic device of claim 6 , wherein the acoustic guide comprises:

a plate; and

a plurality of protrusions aligned on one surface of the plate at substantially equal intervals in a horizontal direction and a vertical direction, and

wherein the plurality of protrusions are disposed to be in contact with one surface of the biological sensor.

8. The electronic device of claim 7 , wherein each of the protrusions comprises at least one of: a substantially cuboidal shape, a conical shape, and a cylindrical shape.

9. The electronic device of claim 4 , wherein the filler material comprises a gel or epoxy material which is not cured within a specified temperature range.

10. The electronic device of claim 4 , further comprising a sealing portion configured to close the injection inlet and the discharge outlet with the filler filling the at least some space.

11. The electronic device of claim 4 , further comprising a digitizer disposed under the display panel.

12. The electronic device of claim 4 , wherein an auxiliary space is further formed at each corner of the seal.

13. An electronic device comprising:

a display panel comprising a first surface facing a first direction, and a second surface facing a second direction opposite the first direction;

an opening formed under the display panel;

an ultrasonic sensor disposed in a portion of the opening to face the second surface of the display panel;

at least one seal disposed to surround the opening and being disposed between the display panel and the ultrasonic sensor, and configured to seal at least some region of the opening; and

a filler material filling a space between the display panel and the ultrasonic sensor defined by the at least one seal,

wherein the at least one seal comprises: an injection inlet disposed at one end of the seal and configured to allow the filler to be drawn in the space through the injection inlet; and a discharge outlet formed at another end of the seal and configured to allow air in the space to be discharged outside the space.

14. The electronic device of claim 13 , further comprising an acoustic guide disposed above the ultrasonic sensor in the opening to face the first direction.

15. The electronic device of claim 13 , further comprising a digitizer disposed under the display panel.

16. An electronic device comprising:

a display panel comprising a first surface facing a first direction, and a second surface facing a second direction opposite the first direction;

an opening formed under the display panel;

an ultrasonic sensor disposed in a portion of the opening to face the second surface of the display panel;

at least one seal disposed to surround the opening and being disposed between the display panel and the ultrasonic sensor, and configured to seal at least some region of the opening; and

a filler material filling a space between the display panel and the ultrasonic sensor defined by the at least one seal,

wherein the ultrasonic sensor comprises:

a sensor housing;

an injection inlet disposed at one end of the sensor housing and configured to allow the filler to be drawn in the space through the injection inlet; and

a discharge outlet disposed at another end of the sensor housing and configured to allow air in the space to be discharged outside the space.