Manufacturing method of strain sensor, strain sensor and motion sensing apparatus using the strain sensor
First Claim
Patent Images
1. A strain sensor comprising:
- a flexible substrate;
a rigid pattern on one side of the flexible substrate; and
a conductive flexible pattern extending in a first direction on the one side of the flexible substrate,wherein the conductive flexible pattern is configured to overlap the rigid pattern such that as the flexible substrate is compressed or stretched, the conductive flexible pattern is compressed or stretched, thereby changing electrical resistance,wherein the flexible pattern is configured to form a crack thereon at a portion adjacent to the rigid pattern when the flexible pattern is stretched such that the electrical resistance of the conductive flexible pattern is changed by the crack formed on the flexible pattern.
1 Assignment
0 Petitions
Accused Products
Abstract
A strain sensor according to the present disclosure includes a flexible substrate, a rigid pattern on a side of the flexible substrate, and a conductive flexible pattern extending in a first direction on a side of the flexible substrate, in which the conductive flexible pattern overlaps the rigid pattern such that as the flexible substrate is compressed or stretched, the conductive flexible pattern is compressed or stretched, thereby changing electric resistance.
-
Citations
18 Claims
-
1. A strain sensor comprising:
-
a flexible substrate; a rigid pattern on one side of the flexible substrate; and a conductive flexible pattern extending in a first direction on the one side of the flexible substrate, wherein the conductive flexible pattern is configured to overlap the rigid pattern such that as the flexible substrate is compressed or stretched, the conductive flexible pattern is compressed or stretched, thereby changing electrical resistance, wherein the flexible pattern is configured to form a crack thereon at a portion adjacent to the rigid pattern when the flexible pattern is stretched such that the electrical resistance of the conductive flexible pattern is changed by the crack formed on the flexible pattern. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method of manufacturing a strain sensor, comprising:
-
preparing a flexible substrate; forming a first pattern on a side of the flexible substrate; forming a rigid pattern by hardening the first pattern; and forming a conductive flexible pattern on the side of the flexible substrate to have a first portion which is overlapped with and in direct contact with the rigid pattern, the flexible pattern configured to form a crack thereon at a second portion adjacent to the first portion when the flexible pattern is stretched, wherein the forming of a rigid pattern and the forming of a conductive flexible pattern are performed by printing. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
-
17. A motion sensing device comprising:
-
a strain sensor including; a flexible substrate; a rigid pattern on one side of the flexible substrate; and a conductive flexible pattern extending in a first direction on the one side of the flexible substrate, wherein the conductive flexible pattern is configured to overlap the rigid pattern such that as the flexible substrate is compressed or stretched, the conductive flexible pattern is compressed or stretched, thereby changing electrical resistance, wherein the flexible pattern is configured to form a crack thereon at a portion adjacent to the rigid pattern when the flexible pattern is stretched such that the electrical resistance of the conductive flexible pattern is changed by the crack formed on the flexible pattern, a signal source applying an electrical stimulus to the strain sensor; and a lead-out circuit performing processing in response to an electrical signal according to a change in electrical resistance of the strain sensor. - View Dependent Claims (18)
-
Specification