Electronic device

Patent metadata

Field	Value
Publication number	US-11430360-B2
Application number	US-202117377382-A
Country	US
Kind code	B2
Filing date	Jul 16, 2021
Priority date	Oct 27, 2020
Publication date	Aug 30, 2022
Grant date	Aug 30, 2022

Abstract

An electronic device includes: a display module including a display panel and an input sensor disposed on the display panel, the display panel having a first area including a plurality of pixels and a second area having a transmittance higher than that of the first area; a first sensor disposed below the display module, overlapping the second area, and configured to measure a first signal having biometric information of a user; a second sensor disposed to surround the first sensor, overlapping the first area, and configured to measure a second signal applied from the user; and a driving unit connected to the display module, the first sensor, and the second sensor, the driving unit configured to drive the first sensor and the second sensor together with the display module.

First claim

What is claimed is:

1. An electronic device comprising:
a display module comprising a display panel and an input sensor disposed on the display panel, the display panel having a first area comprising a plurality of pixels and a second area having a transmittance higher than that of the first area;
a first sensor disposed below the display module, overlapping the second area, and configured to measure a first signal having biometric information of a user;
a second sensor disposed to surround the first sensor, overlapping the first area, and configured to measure a second signal applied from the user; and
a driving unit connected to the display module, the first sensor, and the second sensor, the driving unit configured to drive the first sensor and the second sensor together with the display module.

2. The electronic device of claim 1 , wherein the second area of the display panel comprises a plurality of light emitting areas, and a plurality of signal transmission areas adjacent to the plurality of light emitting areas.

3. The electronic device of claim 1 , further comprising a main circuit board for driving the display module,
wherein the driving unit is disposed on the main circuit board.

4. The electronic device of claim 1 , wherein the driving unit comprises:
a display panel driver configured to drive the display panel;
an input sensor driver configured to drive the input sensor;
a first sensor driver configured to drive the first sensor; and
a second sensor driver configured to drive the second sensor.

5. The electronic device of claim 4 , wherein the driving unit further comprises a biometric information calculator configured to calculate the biometric information of the user based on the first signal measured by the first sensor driver and the second signal measured by the second sensor driver.

6. The electronic device of claim 1 , wherein the first sensor is a photoplethysmography (PPG) sensor and configured to measure at least one of a user's blood pressure, oxygen saturation, and heart rate.

7. The electronic device of claim 1 , wherein the first sensor comprises a light emitter for providing light and a light receiver for detecting light reflected from the user,
wherein the light emitter comprises at least one of an infrared light source for emitting infrared light and a red light source for emitting red light,
wherein the light receiver is a photodiode or a camera module.

8. The electronic device of claim 7 , wherein the first sensor comprises a sensor driving module for driving the light receiver and the light emitter.

9. The electronic device of claim 8 , wherein the light receiver is formed in the sensor driving module.

10. The electronic device of claim 8 , wherein the sensor driving module is connected to the driving unit,
wherein the driving unit is configured to drive the first sensor through the sensor driving module, and configured to directly drive the second sensor.

11. The electronic device of claim 1 , further comprising a plurality of signal wirings electrically connecting the first sensor and the second sensor to the driving unit.

12. The electronic device of claim 11 , wherein the plurality of signal wirings comprise a plurality of first signal wirings electrically connected to the first sensor and a plurality of second signal wirings electrically connected to the second sensor.

13. An electronic device comprising:
a display module comprising a display panel and an input sensor disposed on the display panel, the display panel having a first area comprising a plurality of pixels and a second area having a transmittance higher than that of the first area;
a first sensor disposed below the display module, overlapping the second area, and configured to measure a first signal having biometric information of a user;
a second sensor disposed to surround the first sensor, overlapping the first area, and configured to measure a second signal applied from the user;
a sensor driving module disposed on the first sensor, connected to the second sensor, and configured to drive the first sensor and the second sensor; and
a driving unit connected to the display module and the sensor driving module, the driving unit configured to drive the display module and the sensor driving module.

14. The electronic device of claim 13 , wherein the sensor driving module is configured to alternately drive the first sensor and the second sensor.

15. The electronic device of claim 13 , further comprising a plurality of first signal wirings electrically connecting the second sensor to the sensor driving module.

16. The electronic device of claim 15 , further comprising a plurality of second signal wirings electrically connecting the sensor driving module to the driving unit.

17. The electronic device of claim 13 , wherein the sensor driving module is an analog front end for converting the first signal and the second signal into a driving signal.

18. The electronic device of claim 17 , wherein the driving unit comprises a biometric information calculator configured to receive the driving signal from the sensor driving module and calculate biometric information of the user based on the driving signal.

19. The electronic device of claim 13 , wherein the first sensor comprises a light emitter for providing light and a light receiver for detecting reflected light,
wherein the light emitter comprises at least one of an infrared light source for emitting infrared light and a red light source for emitting red light,
wherein the light receiver is a photodiode or a camera module.

20. The electronic device of claim 13 , wherein the first sensor comprises a photoplethysmography (PPG) sensor for measuring a change in blood flow by optically detecting light reflected or transmitted from tissue and/or blood of the user, and obtaining heart rate, blood pressure, respiration, and blood oxygen saturation,
wherein the second sensor comprises a pressure sensor.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Hyeon Jun
• Kim Chul
• Seomoon Hee
• Lee Taehee

Classifications

• G06F1/1684

  Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675 · CPC title

• G06F1/1624

  with sliding enclosures, e.g. sliding keyboard or display · CPC title

• H04N23/20

  for generating image signals from infrared radiation only · CPC title

• H10K59/70

  OLEDs integrated with inorganic light-emitting elements, e.g. with inorganic electroluminescent elements · CPC title

• G09G3/16 Primary

  by control of light from an independent source · CPC title