# US 10,768,765 B2 · Touch display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,768,765 B2 - Document ID: US10768765B2 - Status: Granted - Kind: B2 - Application number: 16/516,436 - Filed: 2019-07-19 - Published: 2020-02-27 - Granted: 2020-09-08 - Earliest claimed: 2018-08-23 - Assignees: Innolux Corporation - Applicants: Innolux Corporation - Inventors: Chung-Wen Yen; Wei-Chih Chen - Web page: https://patentgrep.com/patent/US10768765B2 ## CPC - G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads} - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - G06F 2203/04107: Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds - 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 A touch display device includes a display component and a sensing layer disposed above the display component. The display component has a display area having a corner with an arced edge. The arced edge has a radius of curvature. The sensing layer disposed above the display component includes: a plurality of first sensing portions arranged along a first direction and electrically connected to each other, wherein the first sensing portions have an arrangement pitch P in the first direction; and a plurality of second sensing portions disposed adjacent to the first sensing portions, arranged along a second direction and electrically connected to each other, wherein the second direction is different from the first direction. The arrangement pitch P satisfies the following equation: P>[2 cos(45−θ/2)−√{square root over (2)}]r, wherein, r represents the radius of curvature, and θ represents an angle corresponding to the arced edge of the corner and satisfies 0°<θ≤90°. ## Claims ### Claim 1 A touch display device comprising: a display component having a display area, wherein the display area has a corner with an arced edge having a radius of curvature; and a sensing layer disposed above the display component, the sensing layer comprising: a plurality of first sensing portions arranged along a first direction and electrically connected to each other, wherein the first sensing portions have an arrangement pitch P in the first direction; and a plurality of second sensing portions disposed adjacent to the first sensing portions, the second sensing portions arranged along a second direction and electrically connected to each other, wherein the second direction is different from the first direction, wherein the arrangement pitch P satisfies the following equation: P>[2 cos(45−θ/2)−√{square root over (2)}]r, wherein, r represents the radius of curvature, and θ represents an angle corresponding to the arced edge of the corner and satisfies 0°<θ≤90°. ### Claim 2 (depends on 1) The touch display device according to claim 1, wherein the arrangement pitch P further satisfies the following equation: P<√{square root over (2)}r sin(θ/2). ### Claim 3 (depends on 2) The touch display device according to claim 2, having a plurality of sensing unit areas for detecting whether a touch event is generated and transmitting a corresponding touch information to a control unit, wherein the arced edge of the corner corresponds to more than one sensing unit area. ### Claim 4 (depends on 1) The touch display device according to claim 1, having a plurality of sensing unit areas for detecting whether a touch event is generated and transmitting a corresponding touch information to a control unit, wherein the arced edge of the corner corresponds to three sensing unit areas. ### Claim 5 (depends on 1) The touch display device according to claim 1, wherein the second sensing portions are arranged in columns along the second direction, and adjacent second sensing portions in the same column are electrically connected through a bridge electrode. ### Claim 6 (depends on 5) The touch display device according to claim 5, wherein the part of the sensing layer corresponding to the corner comprises the bridge electrode located in the first column for connecting the first and the second of the second sensing portions. ### Claim 7 (depends on 1) The touch display device according to claim 1, further comprising a first wire having a first bending segment, and a second wire having a second bending segment, wherein the first wire is electrically connected to at least one of the first sensing portions through the first bending segment, and the second wire is electrically connected to at least one of the second sensing portions through the second bending segment. ### Claim 8 (depends on 7) The touch display device according to claim 7, wherein the first wire further comprises a first linear segment connected to the first bending segment and extended along the second direction. ### Claim 9 (depends on 8) The touch display device according to claim 8, wherein the second wire further comprises a second linear segment connected to the second bending segment and extended along the first direction. ### Claim 10 (depends on 7) The touch display device according to claim 7, further comprising a first shielding trace located outside the display area, wherein the first wire is disposed between the sensing layer and the first shielding trace. ### Claim 11 (depends on 10) The touch display device according to claim 10, wherein the first shielding trace comprises a first corner shielding segment and a first linear shielding segment connected to the first corner shielding segment and extended along the second direction. ### Claim 12 (depends on 11) The touch display device according to claim 11, wherein the first corner shielding segment is extended to one side of the first sensing portions arranged in the first row. ### Claim 13 (depends on 10) The touch display device according to claim 10, further comprising a second shielding trace located outside the display area, wherein the second wire is disposed between the sensing layer and the second shielding trace. ### Claim 14 (depends on 13) The touch display device according to claim 13, wherein the second shielding trace comprises a second corner shielding segment and a second linear shielding segment connected to the second corner shielding segment and extended along the first direction. ### Claim 15 (depends on 14) The touch display device according to claim 14, wherein the second corner shielding segment is extended to one side of the second sensing portions arranged in the first column. ### Claim 16 (depends on 1) The touch display device according to claim 1, wherein the radius of curvature r is in a range of 1 mm-10 mm. ### Claim 17 (depends on 16) The touch display device according to claim 16, wherein the radius of curvature r is in a range of 4 mm-6 mm. ### Claim 18 (depends on 1) The touch display device according to claim 1, wherein the first direction is perpendicular to the second direction. ### Claim 19 (depends on 1) The touch display device according to claim 1, wherein the first sensing portions and the second sensing portions comprise a metal material or a transparent conductive material.