Wearable device including structure for preventing noise caused by static electricity
A wearable device is provided. The wearable device is used by being attached to a user's skin. The wearable device includes a main body unit having a housing and a substrate, the substrate being arranged inside the housing, an electrode unit including a sensing electrode connected to the main body unit, and a patch unit including one or more conductive members, the one or more conductive members being configured to electrically connect the electrode unit to the user's skin. The electrode unit includes a shielding layer that is not electrically connected to the main body unit. The shielding layer is conductive with a floating potential.
1. A wearable device used by being attached to a user's skin, the wearable device comprising:
a main body unit including a housing and a substrate, the substrate being arranged inside the housing;
an electrode unit including a sensing electrode connected to the main body unit; and
a patch unit including one or more conductive members, the one or more conductive members being configured to electrically connect the electrode unit to a user's skin,
wherein the electrode unit further includes a shielding layer, the shielding layer configured to be not electrically connected to the main body unit and to be conductive with a floating potential.
2. The wearable device of claim 1 , wherein the shielding layer is on an upper surface of the electrode unit to cover an electrode pattern layer printed on a rear surface of the electrode unit.
3. The wearable device of claim 2 , wherein the shielding layer includes a first shielding region and a second shielding region, the first shielding region being spaced apart from an edge of the main body unit by a predetermined distance, and the second shielding region extending from both sides of the first shielding region.
4. The wearable device of claim 3 , wherein, when viewed from a top, a connection portion of the sensing electrode and the main body unit is arranged inside the first shielding region, and the one or more conductive members are arranged inside the second shielding region.
5. The wearable device of claim 3 , wherein the second shielding region includes a mesh structure therein.
6. The wearable device of claim 1 , wherein the shielding layer is printed on an upper surface of the electrode unit with an inductive ink.
7. The wearable device of claim 1 , wherein a predetermined potential is applied to the shielding layer so that external static electricity does not flow into the main body unit.
8. The wearable device of claim 1 , wherein the electrode unit further includes an electrode pattern layer that is printed on a rear surface of the electrode unit, the electrode pattern layer being in contact with the user's skin through the one or more conductive members and further connected to the shielding layer to cause external static electricity to flow into the user's skin.
9. A wearable device used by being attached to a user's skin, the wearable device comprising:
a main body unit including a housing and a substrate, the substrate being arranged inside the housing;
an electrode unit including a sensing electrode connected to the main body unit; and
a patch unit including one or more conductive members, the one or more conductive members being configured to electrically connect the electrode unit to the user's skin,
wherein the electrode unit includes a conductive shielding layer including an electrode that is connected to a user's skin and not electrically connected to the main body unit.