Pressure sensor, acoustic microphone, blood pressure sensor, and touch panel
First Claim
1. A pressure sensor, comprising:
- a film part supported by a support unit, the film part being flexible, the film part having a firm surface; and
a sensing unit,a circumscribing rectangle configured to circumscribe a configuration of the film surface, the circumscribing rectangle having;
a first side extending in a first direction, the first direction being along the film surface;
a second side extending in the first direction to be separated from the first side;
a third side extending in a second direction to be connected to one end of the first side and one end of the second side, the second direction being perpendicular to the first direction and being along the film surface;
a fourth side extending in the second direction to be separated from the third side and connected to one other end of the first side and one other end of the second side; and
a centroid of the circumscribing rectangle,the circumscribing rectangle including a first region, a second region, a third region, and a fourth region,the first region being enclosed by the first side, a first line segment and a second line segment, the first line segment connecting the centroid to the one end of the first side, the second line segment connecting the centroid to the one other end of the first side,the second region being enclosed by the second side, a third line segment and a fourth line segment, the third line segment connecting the centroid to the one end of the second side, the fourth line segment connecting the centroid to the one other end of the second side,the third region being enclosed by the third side, the first line segment and the third line segment,the fourth region being enclosed by the fourth side, the second line segment and the fourth line segment,the sensing unit including a plurality of sensing elements provided on a first portion of the film surface overlapping the first region, each of the plurality of sensing elements including a first magnetic layer, a second magnetic layer provided between the first magnetic layer and the film part, and a spacer layer provided between the first magnetic layer and the second magnetic layer,positions of at least two of the plurality of sensing elements provided on the first portion along the first direction being different from each other,the at least two of the plurality of sensing elements provided on the first portion are connected electrically in series, andthe at least two of the plurality of sensing elements provided on the first portion are not connected electrically to any sensing element provided on a third portion of the film surface overlapping the third region, and are not connected electrically to any sensing element provided on a fourth portion of the film surface overlapping the fourth region, or no sensing element is provided on the third portion and on the fourth portion.
1 Assignment
0 Petitions
Accused Products
Abstract
According to one embodiment, a pressure sensor includes a film part, and a sensing unit. A circumscribing rectangle circumscribing a configuration of a film surface of the film part has a first side, a second side, a third side connected to one end of the first side and one end of the second side, a fourth side connected to one other end of the first side and one other end of the second side, and a centroid of the circumscribing rectangle. The circumscribing rectangle includes a first region enclosed by the first side, line segments connecting the centroid to the one end of the first side, and to the one other end of the first side. The sensing unit includes sensing elements provided on a portion of the film surface overlapping the first region. Each sensing element includes a first, second magnetic layers, and a spacer layer.
20 Citations
23 Claims
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1. A pressure sensor, comprising:
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a film part supported by a support unit, the film part being flexible, the film part having a firm surface; and a sensing unit, a circumscribing rectangle configured to circumscribe a configuration of the film surface, the circumscribing rectangle having; a first side extending in a first direction, the first direction being along the film surface; a second side extending in the first direction to be separated from the first side; a third side extending in a second direction to be connected to one end of the first side and one end of the second side, the second direction being perpendicular to the first direction and being along the film surface; a fourth side extending in the second direction to be separated from the third side and connected to one other end of the first side and one other end of the second side; and a centroid of the circumscribing rectangle, the circumscribing rectangle including a first region, a second region, a third region, and a fourth region, the first region being enclosed by the first side, a first line segment and a second line segment, the first line segment connecting the centroid to the one end of the first side, the second line segment connecting the centroid to the one other end of the first side, the second region being enclosed by the second side, a third line segment and a fourth line segment, the third line segment connecting the centroid to the one end of the second side, the fourth line segment connecting the centroid to the one other end of the second side, the third region being enclosed by the third side, the first line segment and the third line segment, the fourth region being enclosed by the fourth side, the second line segment and the fourth line segment, the sensing unit including a plurality of sensing elements provided on a first portion of the film surface overlapping the first region, each of the plurality of sensing elements including a first magnetic layer, a second magnetic layer provided between the first magnetic layer and the film part, and a spacer layer provided between the first magnetic layer and the second magnetic layer, positions of at least two of the plurality of sensing elements provided on the first portion along the first direction being different from each other, the at least two of the plurality of sensing elements provided on the first portion are connected electrically in series, and the at least two of the plurality of sensing elements provided on the first portion are not connected electrically to any sensing element provided on a third portion of the film surface overlapping the third region, and are not connected electrically to any sensing element provided on a fourth portion of the film surface overlapping the fourth region, or no sensing element is provided on the third portion and on the fourth portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A pressure sensor, comprising:
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a film part supported by a support unit, the film part being flexible, the film part having a film surface; and a sensing unit, a configuration of the film surface having; a first side extending in a first direction along the film surface; a second side extending in the first direction to be separated from the first side; a third side extending in a second direction, the second direction being perpendicular to the first direction and being along the film surface; and a fourth side extending in the second direction to be separated from the third side, the film surface having a central portion, and a peripheral portion provided around the central portion, the peripheral portion having a first element disposition region provided along the first side, the sensing unit including a plurality of sensing elements, a first part of the plurality of sensing elements being provided on the first element disposition region of the film surface, a second part of the plurality of sensing elements being provided on the central portion, each of the plurality of sensing elements including a first magnetic layer, a second magnetic layer provided between the first magnetic layer and the film part, and a spacer layer provided between the first magnetic layer and the second magnetic layer, positions of at least two of the first part of the plurality of sensing elements along the first direction being different from each other, the at least two of the first part of the plurality of sensing elements are connected electrically in series, at least two of the second part of the plurality of sensing elements are connected electrically in series, and the at least two of the first part of the plurality of sensing elements are not connected with the at least two of the second part of the plurality of sensing elements. - View Dependent Claims (21)
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22. A pressure sensor, comprising:
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a film part supported by a support unit, the film part being flexible, the film part having a film surface; and a sensing unit, the film surface having a central portion, and a peripheral portion provided around the central portion, the peripheral portion having a first element disposition region provided along an arc along a major axis, the sensing unit including a plurality of sensing elements, a first part of the plurality of sensing elements being provided on the first element disposition region of the film surface, a second part of the plurality of sensing elements being provided on the central portion, each of the plurality of sensing elements including a first magnetic layer, a second magnetic layer provided between the first magnetic layer and the film part, and a spacer layer provided between the first magnetic layer and the second magnetic layer, positions of at least two of the first part of the plurality of sensing elements along a first direction being different from each other, the first direction being along the film surface, the at least two of the first part of the plurality of sensing elements are connected electrically in series, at least two of the second part of the plurality of sensing elements are connected electrically in series, and the at least two of the first part of the plurality of sensing elements are not connected with the at least two of the second part of the plurality of sensing elements. - View Dependent Claims (23)
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Specification