Electronic device having electrode measuring biological signal

Patent metadata

Field	Value
Publication number	US-12496013-B2
Application number	US-202318326531-A
Country	US
Kind code	B2
Filing date	May 31, 2023
Priority date	Jul 31, 2019
Publication date	Dec 16, 2025
Grant date	Dec 16, 2025

Abstract

An electronic device is provided. The electronic device includes a housing, a display disposed in the housing, a printed circuit board (PCB) disposed under the display, a first conductive member disposed under the PCB, a layer of glass disposed under the first conductive member, and a second conductive member disposed under the layer of glass and electrically connected with the first conductive member.

First claim

What is claimed is:

1 . An electronic device comprising:
a housing; a display disposed in the housing; a printed circuit board (PCB) disposed under the display; a first conductive member disposed under the PCB; a layer of glass disposed under the first conductive member; and a second conductive member disposed under the layer of glass and electrically connected with the first conductive member.

2 . The electronic device of claim 1 , further comprising:
a third conductive member disposed under the PCB and over the first conductive member, and electrically connected with the PCB and the first conductive member.

3 . The electronic device of claim 2 , further comprising:
a light blocking member disposed under the third conductive member and over the layer of glass.

4 . The electronic device of claim 3 , wherein, when viewed from a side surface of the electronic device, the light blocking member is disposed between a first portion of the first conductive member and a second portion of the first conductive member.

5 . The electronic device of claim 2 , wherein the third conductive member is electrically connected with the PCB via a connector.

6 . The electronic device of claim 1 , wherein the first conductive member and the second conductive member each include at least one of chromium (Cr), titanium (Ti), gold (Au), silver (Ag), graphene, or carbon nano tube (CNT).

7 . The electronic device of claim 1 , further comprising:
an adhesive member disposed between the layer of glass and the second conductive member.

8 . The electronic device of claim 7 , wherein the adhesive member is formed by depositing or coating silicon dioxide (SiO2) on the layer of glass.

9 . The electronic device of claim 3 , wherein the light blocking member comprises black carbon.

10 . The electronic device of claim 9 , wherein the light blocking member is formed on the layer of glass in a printing method.

11 . A wearable electronic device comprising:
a housing comprising:
a first surface facing a first direction,
a second surface facing a second direction opposite to the first direction, and
a third surface connecting the first surface and the second surface to form a space in the housing;
a display viewable in the first direction through the first surface of the housing; a printed circuit board (PCB) disposed under the display in the space; a layer of glass disposed under the PCB and configured to cover at least a part of the second surface of the housing; and an electrode electrically connected with the PCB and configured to obtain first biometric information, wherein the electrode includes:
a first conductive member disposed under the PCB and over the layer of glass, and
a second conductive member disposed under the layer of glass and electrically connected with the first conductive member.

12 . The wearable electronic device of claim 11 , further comprising:
a third conductive member disposed under the PCB and over the first conductive member, and electrically connected with the PCB and the first conductive member.

13 . The wearable electronic device of claim 12 , further comprising:
a light blocking member disposed under the third conductive member and over the layer of glass.

14 . The wearable electronic device of claim 13 , wherein, when viewed from a side surface of the electronic device, the light blocking member is disposed between a first portion of the first conductive member and a second portion of the first conductive member.

15 . The wearable electronic device of claim 12 , wherein the third conductive member is electrically connected with the PCB via a connector.

16 . The wearable electronic device of claim 11 , further comprising:
an adhesive member disposed between the layer of glass and the second conductive member.

17 . The wearable electronic device of claim 11 ,
wherein the first conductive member is formed of a different material from that of the second conductive member, and wherein a resistance between the first conductive member and the second conductive member is between 1 ohm (Ω) and 10 kilohm (kΩ).

18 . The wearable electronic device of claim 11 , further comprising:
a sensor configured to:
not overlap with the second conductive member, and
obtain second biometric information,
wherein the electrode is configured to obtain an electrocardiogram (ECG) of a wearer wearing the wearable electronic device, and wherein the sensor is configured to obtain a photo plethysmograph (PPG) of the wearer wearing the wearable electronic device.

19 . The wearable electronic device of claim 11 , wherein a material forming the second conductive member has a Mohs hardness of 5 or more.

20 . The wearable electronic device of claim 11 , wherein the first conductive member and the second conductive member each include at least one of chromium (Cr), titanium (Ti), gold (Au), silver (Ag), graphene, or carbon nano tube (CNT).

Assignees

• Samsung Electronics Co Ltd

Inventors

• Jeong Injo
• Jo Seongwook
• Yoo Hyunguk
• Kim Younghyun
• Lee Suho
• Lee Jeahyuck
• Lee Jeehoon
• Jung Hyunjun
• Cho Shinhee

Classifications

• A61B5/28

  for electrocardiography [ECG] · CPC title

• A61B2562/166

  the sensor is mounted on a specially adapted printed circuit board · CPC title

• A61B5/02416

  using photoplethysmograph signals, e.g. generated by infrared radiation (A61B5/14552 takes precedence) · CPC title

• A61B2560/04

  Constructional details of apparatus · CPC title

• A61B5/742

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