Display device

Patent metadata

Field	Value
Publication number	US-11290583-B2
Application number	US-202016920073-A
Country	US
Kind code	B2
Filing date	Jul 2, 2020
Priority date	Sep 3, 2019
Publication date	Mar 29, 2022
Grant date	Mar 29, 2022

Abstract

A display device includes a display panel to display an image, and a blood pressure measuring module including a pressure sensor and a pulse wave sensor, wherein the pressure sensor is configured to sense a pressure that is applied to the display panel, the pulse wave sensor includes an optical sensor, and the pulse wave sensor is configured to generate a pulse wave signal using light that is emitted from a pixel of the display panel.

First claim

What is claimed is:

1. A display device comprising:
a display panel to display an image; and
a blood pressure measuring module comprising a pressure sensor and a pulse wave sensor part,
wherein the pressure sensor is configured to sense a pressure that is applied to the display panel,
wherein the pulse wave sensor part is configured to generate a pulse wave signal using light that is emitted from a pixel of the display panel,
wherein the pulse wave sensor part comprises an optical sensor,
wherein the optical sensor is outside the display panel, and the pressure sensor overlaps the display panel in a thickness direction, and
wherein the optical sensor does not overlap the pressure sensor.

2. The display device of claim 1 , wherein the optical sensor is positioned within a distance of about 30 mm from the pressure sensor in a horizontal direction.

3. The display device of claim 2 , wherein the blood pressure measuring module is configured to concurrently measure blood pressures at a plurality of points above the display panel.

4. The display device of claim 1 , wherein the blood pressure measuring module further comprises a control part configured to measure a blood pressure utilizing a pressure signal, which is sensed by the pressure sensor, and the pulse wave signal that is received from the pulse wave sensor part.

5. The display device of claim 1 , wherein the pressure sensor comprises a force sensor, a gap capacitor, or a strain gauge.

6. The display device of claim 1 , further comprising a window member that is above the display panel.

7. The display device of claim 1 , wherein the display device includes a display area and a non-display area, and
wherein the pressure sensor and the optical sensor are in the display area.

8. A display device comprising:
a display panel to display an image; and
a blood pressure measuring module comprising a pressure sensor and a pulse wave sensor part,
wherein the pressure sensor is configured to sense a pressure that is applied to the display panel,
wherein the pulse wave sensor part is configured to generate a pulse wave signal using light that is emitted from a pixel of the display panel,
wherein the pulse wave sensor part comprises an optical sensor,
wherein the pressure sensor and the optical sensor overlap the display panel in a thickness direction,
wherein the pressure sensor and the optical sensor overlap each other in the thickness direction,
wherein the optical sensor is below the display panel,
wherein the pressure sensor is transparent, and
wherein the pressure sensor is above the display panel or between the display panel and the optical sensor.

9. The display device of claim 8 , wherein the display device includes a display area and a non-display area, and
wherein the pressure sensor and the optical sensor are in the display area.

10. A display device comprising:
a display panel to display an image; and
a blood pressure measuring module comprising a pressure sensor and a pulse wave sensor part,
wherein the pressure sensor is configured to sense a pressure that is applied to the display panel,
wherein the pulse wave sensor part is configured to generate a pulse wave signal using light that is emitted from a pixel of the display panel,
wherein the pulse wave sensor part comprises an optical sensor,
wherein the display panel comprises a plurality of pixel electrodes and a common electrode, the common electrode includes a light transmission opening, and
wherein the optical sensor overlaps the light transmission opening.

11. A display device comprising:
a display panel to display an image;
a blood pressure measuring module comprising a pressure sensor and a pulse wave sensor part; and
a window member that is above the display panel,
wherein the pressure sensor is configured to sense a pressure that is applied to the display panel,
wherein the pulse wave sensor part is configured to generate a pulse wave signal using light that is emitted from a pixel of the display panel, and
wherein the window member comprises a glass having a thickness of about 0.2 mm or less or a transparent polymer having a thickness of about 0.1 mm or less.

12. A display device comprising:
a display panel that comprises a display area including a display light-transmission area and a display-only area;
a pressure sensor that overlaps the display panel in a thickness direction; and
an optical sensor that is below the display panel and overlaps the display light-transmission area of the display panel,
wherein the display light-transmission area comprises a plurality of first pixels and a light transmission part,
wherein the display-only area comprises a plurality of second pixels,
wherein the light transmission part has a light transmittance higher than that of each of the first pixels and each of the second pixels,
wherein the display light-transmission area has a light transmittance higher than that of the display-only area, and
wherein the pressure sensor overlaps the optical sensor in the thickness direction or is positioned within a distance of about 30 mm from the optical sensor in a horizontal direction.

13. The display device of claim 12 , wherein the pressure sensor is transparent and is between the optical sensor and the display panel.

14. The display device of claim 12 , wherein the optical sensor is to utilize light that is emitted from at least one of the pixels of the display panel.

15. A display device comprising:
a display panel that comprises a display area including a display light-transmission area and a display-only area;
a pressure sensor that overlaps the display panel in a thickness direction; and
an optical sensor that is below the display panel and overlaps the display light-transmission area of the display panel,
wherein the display light-transmission area comprises a plurality of first pixels and a light transmission part,
wherein the display-only area comprises a plurality of second pixels,
wherein the light transmission part has a light transmittance higher than that of each of the first pixels and each of the second pixels,
wherein the display light-transmission area has a light transmittance higher than that of the display-only area, and
wherein the display panel comprises a plurality of pixel electrodes and a common electrode, each of the pixel electrodes is over the display light-transmission area and the display-only area, the common electrode is on an entire surface in the display-only area, and the common electrode is in a region of the display light-transmission area and defines a light transmission opening.

Assignees

• Samsung Display Co Ltd

Inventors

• Hong Won Ki
• Park So Hee
• Seomoon Hee
• Lee Hyeon Jun

Classifications

• H04M2250/12

  including a sensor for measuring a physical value, e.g. temperature or motion · CPC title

• A61B2562/046

  in a matrix array · CPC title

• A61B2562/0247

  Pressure sensors · CPC title

• H04M1/0266 Primary

  for a display module assembly · CPC title

• A61B5/742

  using visual displays (displays for heart-related electrical signals, e.g. ECG, A61B5/339) · CPC title