# US 2017/0285801 A1 · Touch sensor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0285801 A1 - Document ID: US20170285801A1 - Status: Published application - Kind: A1 - Application number: 15/475,733 - Filed: 2017-03-31 - Published: 2017-10-05 - Earliest claimed: 2016-03-31 - Assignees: Dongwoo Fine-Chem Co., Ltd. - Applicants: Dongwoo Fine-Chem Co., Ltd. - Inventors: Byung Jin Choi; Jae Hyun Lee - Web page: https://patentgrep.com/patent/US20170285801A1 ## CPC - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - G06F 3/0443: {using a single layer of sensing electrodes} - G06F 2203/04111: Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract The present invention relates to a touch sensor comprising: a plurality of first sensing electrode patterns formed in a way that they are connected to each other along a first direction on a substrate; a plurality of second sensing electrode patterns formed in a way that they are separated from each other along a second direction on the substrate; insulating portions electrically insulating the first sensing electrode patterns and the second sensing electrode patterns; and bridge pattern portions electrically connecting the adjacent second sensing electrode patterns, wherein the bridge pattern portions comprise: contact portions which are respectively contacted to the adjacent second sensing electrode patterns, and connecting portions connecting the contact portions and having a narrower width than the contact portions. ## Claims ### Claim 1 A touch sensor comprising: a plurality of first sensing electrode patterns formed in a way that they are connected to each other along a first direction on a substrate; a plurality of second sensing electrode patterns formed in a way that they are separated from each other along a second direction on the substrate; insulating portions electrically insulating the first sensing electrode patterns and the second sensing electrode patterns; and bridge pattern portions electrically connecting the adjacent second sensing electrode patterns, wherein the bridge pattern portions comprise: contact portions which are respectively contacted to the adjacent second sensing electrode patterns, and connecting portions connecting the contact portions and having a narrower width than the contact portions. ### Claim 2 (depends on 1) The touch sensor according to claim 1, wherein the bridge pattern portions have an asymmetric structure. ### Claim 3 (depends on 1) The touch sensor according to claim 1, wherein the contact portions constituting the bridge pattern portion are electrically connected to the second sensing electrode patterns via a plurality of contact areas as the intermediates. ### Claim 4 (depends on 3) The touch sensor according to claim 3, wherein the plurality of the contact areas are the contact holes formed in the insulating portion. ### Claim 5 (depends on 3) The touch sensor according to claim 3, wherein the plurality of contact areas is formed in a way that the contact areas are crossed to each other with respect to the center line in the lengthwise direction of the bridge pattern portions. ### Claim 6 (depends on 1) The touch sensor according to claim 1, wherein the bridge pattern portions are formed by a material containing at least one from the group comprising silver (Ag), silver (Ag) alloy, and APC. ### Claim 7 (depends on 1) The touch sensor according to claim 1, wherein the bridge pattern portions are formed in the shape of a winding curve. ### Claim 8 (depends on 1) The touch sensor according to claim 1, wherein the contact portions and the connecting portions are formed in the shape of a winding curve while having a plurality of different radiuses of curvature or a same radius of curvature, and the minimum width of the contact portions is wider than the maximum width of the connecting portion. ### Claim 9 (depends on 7) The touch sensor according to claim 7, wherein the contact portions are electrically connected to the second sensing electrode patterns through the contact areas, as the intermediates, extending towards the both directions with respect to the lengthwise direction of the bridge pattern portions. ### Claim 10 (depends on 1) The touch sensor according to claim 1, wherein the contact portions include the protruded portions protruding towards the both directions with respect to the lengthwise direction of the bridge pattern portions. ### Claim 11 (depends on 10) The touch sensor according to claim 10, wherein the protruded portions included in the contact portions are electrically connected to the second sensing electrode patterns through the contact areas, as the intermediates, extending towards the both directions with respect to the lengthwise direction of the bridge pattern portions. ### Claim 12 (depends on 1) The touch sensor according to claim 1, wherein the contact portions include first protruded portions protruding towards one side with respect to the lengthwise direction of the bridge pattern portions, and second protruded portions protruding towards the other side with respect to the lengthwise direction of the bridge pattern portions. ### Claim 13 (depends on 12) The touch sensor according to claim 12, wherein the first protruded portions are electrically connected to the second sensing electrode patterns, as the intermediates, extending towards the one side with respect to the lengthwise direction of the bridge pattern portions, and the second protruded portions are electrically connected to the second sensing electrode patterns, as the intermediates, extending towards the other side with respect to the lengthwise direction of the bridge pattern portions.