# US 2018/0024666 A1 · Borderless projected capacitive multitouch sensor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0024666 A1 - Document ID: US20180024666A1 - Status: Published application - Kind: A1 - Application number: 15/215,121 - Filed: 2016-07-20 - Published: 2018-01-25 - Earliest claimed: 2016-07-20 - Assignees: Displax S.A. - Applicants: Displax S.A. - Inventors: Pedro Luis Fernandes Marques; Miguel Angelo Magalhaes Fonseca; José Miguel Fernandes Peixoto de Oliveira; António Augusto Babo de Carvalho; Vítor Alfredo Oliveira de Sousa - Web page: https://patentgrep.com/patent/US20180024666A1 ## CPC - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads} - G06F 3/04166: {Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving (Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184)} - G06F 3/047: using sets of wires, e.g. crossed wires - G06F 3/0488: using a touch-screen or digitiser, e.g. input of commands through traced gestures - H05K 1/11: Printed elements for providing electric connections to or between printed circuits - G06F 3/0443: {using a single layer of sensing electrodes} - G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer} - G06F 2203/04104: Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger - G06F 2203/04112: Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material - H05K 2201/10287: Metal wires as connectors or conductors - H05K 2201/1034: Edge terminals, i.e. separate pieces of metal attached to the edge of the printed circuit board [PCB] - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A projected capacitive touch sensor includes a sensor grid. The sensor grid includes one or more electrically conductive rows arranged in an at least partially transparent row layer. The sensor grid includes one or more electrically conductive columns arranged in an at least partially transparent column layer that is spaced apart from the row layer. The projected capacitive touch sensor includes a border region that surrounds at least a portion of the sensor grid. The border region includes a wired bus region that includes a row bus that extends from the one or more electrically conductive rows and a column bus that extends from the one or more electrically conductive columns. The projected capacitive touch sensor includes one or more connectors that are electrically connected to the row bus and the column bus. The wired bus region is configured to fold over an edge of a borderless display. ## Claims ### Claim 1 A projected capacitive touch sensor, comprising: a sensor grid that includes: one or more electrically conductive rows that are arranged in an at least partially transparent row layer; and one or more electrically conductive columns that are arranged in an at least partially transparent column layer that is spaced apart from the row layer; a border region that surrounds at least a portion of the sensor grid and that includes: a wired bus region that includes a row bus that extends from the one or more electrically conductive rows and a column bus that extends from the one or more electrically conductive columns; and one or more connectors that are electrically connected to the row bus and the column bus, wherein the wired bus region is configured to fold over an edge of a display screen that does not include a border. ### Claim 2 (depends on 1) The projected capacitive touch sensor of claim 1, wherein: the one or more connectors comprise: a row connector that is electrically connected to the row bus; and a column connector that is electrically connected to the column bus, and the border region further includes a non-bus region that does not include electrically conductive wires and that defines a removed portion of the non-bus region that is tangential to the sensor grid and that is located between the row bus and the column bus. ### Claim 3 (depends on 1) The projected capacitive touch sensor of claim 1, wherein: the one or more connectors comprise: a single connector that is electrically connected to the row bus and the column bus, and a portion of the row bus is located in a portion of the border region that is configured to fold over itself. ### Claim 4 A projected capacitive touch sensor, comprising: a sensor grid that includes: one or more electrically conductive rows that are arranged in an at least partially transparent row layer; and one or more electrically conductive columns that are arranged in an at least partially transparent column layer that is spaced apart from the row layer; and a border region that surrounds at least a portion of the sensor grid and that includes: a wired bus region that includes a row bus that extends from the one or more electrically conductive rows and a column bus that extends from the one or more electrically conductive columns; and a non-bus region that does not include electrically conductive wires and that defines a removed portion of the non-bus region that is tangential to the sensor grid. ### Claim 5 (depends on 4) The projected capacitive touch sensor of claim 4, wherein the removed portion is located between the row bus and the column bus. ### Claim 6 (depends on 4) The projected capacitive touch sensor of claim 4, wherein the row bus extends into a row connector and the column bus extends into a column connector that is different than the row connector. ### Claim 7 (depends on 4) The projected capacitive touch sensor of claim 4, wherein no gap exists between the sensor region and the removed portion of the non-bus region. ### Claim 8 (depends on 4) The projected capacitive touch sensor of claim 4, wherein the removed portion is a corner section of the non-bus region. ### Claim 9 (depends on 4) The projected capacitive touch sensor of claim 4, wherein the sensor grid is rectangular and the removed portion is square. ### Claim 10 (depends on 4) The projected capacitive touch sensor of claim 4, wherein the border region is configured to fold over an edge of a display screen. ### Claim 11 (depends on 10) The projected capacitive touch sensor of claim 10, wherein the display screen does not include a border that is not configured to display an image or video. ### Claim 12 (depends on 4) The projected capacitive touch sensor of claim 4, wherein the removed portion comprises all of the border region. ### Claim 13 A projected capacitive touch sensor, comprising: a sensor grid that includes: one or more electrically conductive rows that are arranged in an at least partially transparent row layer; and one or more electrically conductive columns that are arranged in an at least partially transparent column layer that is spaced apart from the row layer; a border region that surrounds at least a portion of the sensor grid and that includes: a wired bus region that includes a row bus that extends from the one or more electrically conductive rows and a column bus that extends from the one or more electrically conductive columns; and a connector that is electrically connected to the row bus and the column bus, wherein a portion of the row bus is located in an area of the border region that is configured to fold over itself. ### Claim 14 (depends on 13) The projected capacitive touch sensor of claim 13, wherein the area of the border region that is configured to fold over itself only includes the portion of the row bus and does not include the column bus. ### Claim 15 (depends on 13) The projected capacitive touch sensor of claim 13, wherein the sensor grid is rectangular and the area of the border region that is configured to fold over itself is square. ### Claim 16 (depends on 13) The projected capacitive touch sensor of claim 13, wherein the area of the border region that is configured to fold over itself is located at a corner of the projected capacitive touch sensor. ### Claim 17 (depends on 13) The projected capacitive touch sensor of claim 13, wherein: the wired bus region is configured to fold over an edge of a display screen, and area of the border region that is configured to fold over itself at a corner of the display screen. ### Claim 18 (depends on 17) The projected capacitive touch sensor of claim 17, wherein the display screen does not include a border that is not configured to display an image or video. ### Claim 19 (depends on 13) The projected capacitive touch sensor of claim 13, wherein the border region includes a non-bus region that does not include electrically conductive wires. ### Claim 20 (depends on 13) The projected capacitive touch sensor of claim 13, wherein the non-bus region defines removed portions that are located at corners of the projected capacitive touch sensor.