# US 12,001,640 B2 · Touch substrate, method for manufacturing touch substrate and display apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,001,640 B2 - Document ID: US12001640B2 - Status: Granted - Kind: B2 - Application number: 17/907,000 - Filed: 2021-10-20 - Published: 2023-11-23 - Granted: 2024-06-04 - Earliest claimed: 2020-11-30 - Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd.; Boe Technology Group Co., Ltd. - Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd.; BOE Technology Group Co., Ltd. - Inventors: Xinxiu Zhang; Min He; Xiaodong Xie; Tianyu Zhang; Xue Zhao; Tengfei Zhong; Huayu Sang; Bin Pang - Web page: https://patentgrep.com/patent/US12001640B2 ## CPC - G06F 3/047: using sets of wires, e.g. crossed wires - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads} - G06F 3/0443: {using a single layer of sensing electrodes} - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - G06F 2203/04103: Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices - 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 Provided are a touch substrate and a method for manufacturing the same, and a display apparatus. The touch substrate includes: a base, a first touch layer and a second touch layer on the base, and an interlayer insulation layer between the second touch layer and the first touch layer. The first touch layer includes first touch electrodes and touch signal lines arranged side by side along a first direction and extending in a second direction. The second touch layer includes second touch electrodes arranged side by side along the second direction, each of which extends in the first direction and is connected to at least one touch signal lines through a first connection via penetrating through the interlayer insulation layer. The first touch layer further includes at least one shielding electrode extending in the second direction and arranged between the first touch electrodes and the touch signal lines. ## Claims ### Claim 1 A touch substrate, comprising: a base, a first touch layer and a second touch layer on the base, and an interlayer insulation layer between the second touch layer and the first touch layer; wherein the first touch layer comprises a plurality of first touch electrodes and a plurality of touch signal lines arranged side by side along a first direction and extending in a second direction; and the second touch layer comprises a plurality of second touch electrodes arranged side by side along the second direction, each of the second touch electrodes extends in the first direction and is connected to at least one of the touch signal lines through a first connection via penetrating through the interlayer insulation layer; and wherein the first touch layer further comprises at least one shielding electrode extending in the second direction and arranged between at least part of the first touch electrodes and at least part of the touch signal lines, and wherein at least one shielding electrode is disposed between every two adjacent first touch electrodes; and each touch signal line comprises a first side and a second side opposite to each other in the first direction; and the shielding electrode is disposed between the first touch electrode and only one of the first side or the second side of the touch signal line. ### Claim 2 (depends on 1) The touch substrate according to claim 1, wherein one touch signal line is disposed between every two adjacent first touch electrodes. ### Claim 3 (depends on 2) The touch substrate according to claim 2, wherein the first touch layer further comprises: a plurality of first redundant touch electrodes arranged side by side along the first direction, each of which extends in the second direction; and the plurality of first redundant touch electrodes are located between at least adjacent two of the first touch electrodes, the touch signal lines, or the shielding electrode in the first touch layer. ### Claim 4 (depends on 2) The touch substrate according to claim 2, wherein the second touch layer further comprises a plurality of second redundant touch electrodes arranged side by side along the second direction, each second redundant touch electrode extends in the first direction, and is disposed between, and configured to disconnect, two adjacent second touch electrodes. ### Claim 5 (depends on 2) The touch substrate according to claim 2, wherein the touch substrate comprises a fan-out area; the base is further provided with first fan-out wires, second fan-out wires and a third fan-out wire in the fan-out area; the first fan-out wires are connected to the first touch electrodes, respectively; the second fan-out wires are connected to the touch signal lines, respectively; and the third fan-out wire is connected to the shielding electrode. ### Claim 6 (depends on 5) The touch substrate according to claim 5, wherein at least some of the first fan-out wire, the second fan-out wire, and the third fan-out wire are disposed in different layers, and/or at least one of the first fan-out wire, the second fan-out wire, or the third fan-out wire comprises portions in different layers. ### Claim 7 (depends on 1) The touch substrate according to claim 1, wherein the first touch layer further comprises: a plurality of first redundant touch electrodes arranged side by side along the first direction, each of which extends in the second direction; and the plurality of first redundant touch electrodes are located between at least adjacent two of the first touch electrodes, the touch signal lines, or the shielding electrode in the first touch layer. ### Claim 8 (depends on 1) The touch substrate according to claim 1, wherein the second touch layer further comprises a plurality of second redundant touch electrodes arranged side by side along the second direction, each second redundant touch electrode extends in the first direction, and is disposed between, and configured to disconnect, two adjacent second touch electrodes. ### Claim 9 (depends on 1) The touch substrate according to claim 1, wherein the touch substrate comprises a fan-out area; the base is further provided with first fan-out wires, second fan-out wires and a third fan-out wire in the fan-out area; the first fan-out wires are connected to the first touch electrodes, respectively; the second fan-out wires are connected to the touch signal lines, respectively; and the third fan-out wire is connected to the shielding electrode. ### Claim 10 (depends on 9) The touch substrate according to claim 9, wherein at least some of the first fan-out wire, the second fan-out wire, and the third fan-out wire are disposed in different layers, and/or at least one of the first fan-out wire, the second fan-out wire, or the third fan-out wire comprises portions in different layers. ### Claim 11 (depends on 9) The touch substrate according to claim 9, wherein a first one of the first fan-out wire, the second fan-out wire, or the third fan-out wire is located in the second touch layer, a second one of the first fan-out wire, the second fan-out wire, or the third fan-out wire is located in the first touch layer, and a third one of the first fan-out wire, the second fan-out wire, or the third fan-out wire comprises a first signal sub-line and a second signal sub-line electrically connected; one of the first signal sub-line or the second signal sub-line is located in the second touch layer, and the other of the first signal sub-line or the second signal sub-line is located in the first touch layer. ### Claim 12 (depends on 11) The touch substrate according to claim 11, wherein the first fan-out wire is located in the first touch layer; the second fan-out wire is located in the second touch layer, and connected to the touch signal line through a second connection via penetrating through the interlayer insulation layer; the third fan-out wire comprises the first signal sub-line and the second signal sub-line electrically connected; the first signal sub-line is located in the second touch layer, and the second signal sub-line is located in the first touch layer; and the first signal sub-line has one end connected to the shielding electrode through a third connection via penetrating through the interlayer insulation layer, and another end connected to the second signal sub-line through a fourth connection via penetrating through the interlayer insulation layer. ### Claim 13 (depends on 12) The touch substrate according to claim 12, wherein the second connection via, the third connection via, and the fourth connection via are each located in the fan-out area. ### Claim 14 (depends on 1) The touch substrate according to claim 1, wherein the shielding electrode comprises a ground electrode. ### Claim 15 (depends on 1) The touch substrate according to claim 1, wherein a connection line of at least some first connection vias intersects with the first direction. ### Claim 16 (depends on 1) The touch substrate according to claim 1, wherein at least one of the first touch layer or the second touch layer comprises a metal mesh touch structure. ### Claim 17 (depends on 1) A display apparatus, comprising the touch substrate according to claim 1. ### Claim 18 A method for manufacturing a touch substrate, comprising: forming a pattern comprising a first touch layer on a base through a patterning process; wherein the first touch layer comprises a plurality of first touch electrodes, a plurality of touch signal lines and at least one shielding electrode arranged side by side along a first direction; the plurality of first touch control electrodes and the plurality of touch signal lines both extend in a second direction; and the shielding electrode extends in the second direction; forming an interlayer insulation layer and forming first connection vias in the interlayer insulation layer; forming a pattern of a second touch layer through a patterning process; wherein the second touch layer comprises a plurality of second touch electrodes arranged side by side along the second direction, each of the second touch electrodes extends in the first direction, and the touch signal lines are connected to the second touch electrodes through the first connection vias penetrating through the interlayer insulation layer one to one; wherein the shielding electrode is disposed between at least one of the first touch electrodes and at least one of the touch signal lines, wherein at least one shielding electrode is disposed between every two adjacent first touch electrodes; and each touch signal line comprises a first side and a second side opposite to each other in the first direction; and the shielding electrode is disposed between the first touch electrode and only one of the first side or the second side of the touch signal line.