# US 12,182,352 B2 · Touch panels and display apparatuses > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,182,352 B2 - Document ID: US12182352B2 - Status: Granted - Kind: B2 - Application number: 17/794,826 - Filed: 2021-05-31 - Published: 2024-06-13 - Granted: 2024-12-31 - Earliest claimed: 2021-05-31 - Assignees: Chengdu Boe Optoelectronics Technology Co., Ltd.; Boe Technology Group Co., Ltd. - Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd.; BOE Technology Group Co., Ltd. - Inventors: Kemeng Tong; Fan He; Cong Fan; Yu Wang - Web page: https://patentgrep.com/patent/US12182352B2 ## CPC - G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads} - G06F 3/041: Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means - G06F 3/0412: {Digitisers structurally integrated in a display} - 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} - H10K 59/40: OLEDs integrated with touch screens - G06F 2203/04107: Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract Disclosed are a touch panel and a display apparatus. The touch panel includes: a base substrate (1) including a touch area (101) and a peripheral area (102) surrounding the touch area (101); a touch electrode (2) provided in the touch area (101); a touch signal line provided in the peripheral area (102) and including a touch sensing signal line (4) and a touch driving signal line (7), the touch sensing signal line (4) and the touch driving signal line (7) being both electrically connected with the touch electrode (2); and a first guard line (3) provided in the peripheral area (102), located between the touch sensing signal line (4) and the touch driving signal line (7), and separated from the touch sensing signal line (4) and from the touch driving signal line (7), where a distance between the first guard line (3) and the touch sensing signal line (4) is less than a width of the first guard line (3), and/or a distance between the first guard line (3) and the touch driving signal line (7) is less than the width of the first guard line (3), which can prevent a large capacitance value in the touch area (101). ## Claims ### Claim 1 A touch panel, comprising: a base substrate comprising a touch area and a peripheral area surrounding the touch area; a touch electrode provided in the touch area; a touch signal line provided in the peripheral area and comprising a touch sensing signal line and a touch driving signal line, the touch sensing signal line and the touch driving signal line being both electrically connected with the touch electrode; and a first guard line provided in the peripheral area, located between the touch sensing signal line and the touch driving signal line, and separated from the touch sensing signal line and from the touch driving signal line, wherein a distance between the first guard line and the touch sensing signal line is less than a width of the first guard line, and/or a distance between the first guard line and the touch driving signal line is less than the width of the first guard line. ### Claim 2 (depends on 1) The touch panel according to claim 1, wherein the distance between the first guard line and the touch sensing signal line is greater than or equal to an electrostatic safety distance, and/or the distance between the first guard line and the touch driving signal line is greater than or equal to the electrostatic safety distance. ### Claim 3 (depends on 2) The touch panel according to claim 2, wherein the electrostatic safety distance is 4 μm. ### Claim 4 (depends on 1) The touch panel according to claim 1, wherein the width of the first guard line is 23 μm to 31 μm. ### Claim 5 (depends on 1) The touch panel according to claim 1, wherein a portion of the touch sensing signal line and a portion of the touch driving signal line are arranged in parallel, and the first guard line is arranged between the portion of the touch sensing signal line and the portion of the touch driving signal line that are arranged in parallel. ### Claim 6 (depends on 5) The touch panel according to claim 5, wherein the peripheral area comprises a bonding area separated from the touch area, and the portion of the touch sensing signal line and the portion of the touch driving signal line that are arranged in parallel are each located between the bonding area and the touch area. ### Claim 7 (depends on 5) The touch panel according to claim 5, wherein the touch electrode is strip-shaped, and comprises a touch driving electrode and a touch sensing electrode that are arranged to intersect with each other, the touch driving signal line comprises a first touch driving signal line and a second touch driving signal line, and opposite ends of the touch driving electrode are electrically connected with the first touch driving signal line and the second touch driving signal line in a one-to-one correspondence; and the portion of the touch sensing signal line and a portion of the first touch driving signal line are arranged in parallel. ### Claim 8 (depends on 7) The touch panel according to claim 7, wherein the touch sensing electrode extends in a first direction, and the touch driving electrode extends in a second direction intersecting with the first direction; and the peripheral area comprises a bonding area separated from the touch area in the second direction, and the first touch driving signal line is located between the bonding area and the touch area, and is electrically connected with an end of the touch driving electrode close to the bonding area. ### Claim 9 (depends on 8) The touch panel according to claim 8, wherein the second touch driving signal line is electrically connected with an end of the touch driving electrode away from the bonding area, and the touch panel further comprises: a second guard line provided in the peripheral area and located between the touch area and the second touch driving signal line. ### Claim 10 (depends on 1) The touch panel according to claim 1, wherein the touch electrode is strip-shaped, and comprises a touch driving electrode and a touch sensing electrode that are arranged to intersect with each other, the touch driving signal line comprises a first touch driving signal line and a second touch driving signal line, and opposite ends of the touch driving electrode are electrically connected with the first touch driving signal line and the second touch driving signal line in a one-to-one correspondence; the first guard line is located between the touch sensing signal line and the first touch driving signal line; and the touch panel further comprises: a second guard line provided in the peripheral area, located between the first touch driving signal line and the second touch driving signal line, and separated from the first touch driving signal line and from the second touch driving signal line, wherein a distance between the second guard line and the first touch driving signal line is less than a width of the second guard line, and/or a distance between the second guard line and the second touch driving signal line is less than the width of the second guard line. ### Claim 11 (depends on 1) The touch panel according to claim 1, wherein the base substrate comprises: a base; a light-emitting layer provided on the base; and an encapsulation layer provided on a side of the light-emitting layer away from the base, wherein the touch electrode and the touch signal line are both provided on a surface of the encapsulation layer away from the light-emitting layer. ### Claim 12 A display apparatus, comprising a touch panel, wherein the touch panel comprises: a base substrate comprising a touch area and a peripheral area surrounding the touch area; a touch electrode provided in the touch area; a touch signal line provided in the peripheral area and comprising a touch sensing signal line and a touch driving signal line, the touch sensing signal line and the touch driving signal line being both electrically connected with the touch electrode; and a first guard line provided in the peripheral area, located between the touch sensing signal line and the touch driving signal line, and separated from the touch sensing signal line and from the touch driving signal line, wherein a distance between the first guard line and the touch sensing signal line is less than a width of the first guard line, and/or a distance between the first guard line and the touch driving signal line is less than the width of the first guard line. ### Claim 13 (depends on 12) The display apparatus according to claim 12, wherein the distance between the first guard line and the touch sensing signal line is greater than or equal to an electrostatic safety distance, and/or the distance between the first guard line and the touch driving signal line is greater than or equal to the electrostatic safety distance. ### Claim 14 (depends on 12) The display apparatus according to claim 12, wherein a portion of the touch sensing signal line and a portion of the touch driving signal line are arranged in parallel, and the first guard line is arranged between the portion of the touch sensing signal line and the portion of the touch driving signal line that are arranged in parallel. ### Claim 15 (depends on 14) The display apparatus according to claim 14, wherein the peripheral area comprises a bonding area separated from the touch area, and the portion of the touch sensing signal line and the portion of the touch driving signal line that are arranged in parallel are each located between the bonding area and the touch area. ### Claim 16 (depends on 14) The display apparatus according to claim 14, wherein the touch electrode is strip-shaped, and comprises a touch driving electrode and a touch sensing electrode that are arranged to intersect with each other, the touch driving signal line comprises a first touch driving signal line and a second touch driving signal line, and opposite ends of the touch driving electrode are electrically connected with the first touch driving signal line and the second touch driving signal line in a one-to-one correspondence; and the portion of the touch sensing signal line and a portion of the first touch driving signal line are arranged in parallel. ### Claim 17 (depends on 16) The display apparatus according to claim 16, wherein the touch sensing electrode extends in a first direction, and the touch driving electrode extends in a second direction intersecting with the first direction; and the peripheral area comprises a bonding area separated from the touch area in the second direction, and the first touch driving signal line is located between the bonding area and the touch area, and is electrically connected with an end of the touch driving electrode close to the bonding area. ### Claim 18 (depends on 17) The display apparatus according to claim 17, wherein the second touch driving signal line is electrically connected with an end of the touch driving electrode away from the bonding area, and the touch panel further comprises: a second guard line provided in the peripheral area and located between the touch area and the second touch driving signal line. ### Claim 19 (depends on 12) The display apparatus according to claim 12, wherein the touch electrode is strip-shaped, and comprises a touch driving electrode and a touch sensing electrode that are arranged to intersect with each other, the touch driving signal line comprises a first touch driving signal line and a second touch driving signal line, and opposite ends of the touch driving electrode are electrically connected with the first touch driving signal line and the second touch driving signal line in a one-to-one correspondence; the first guard line is located between the touch sensing signal line and the first touch driving signal line; and the touch panel further comprises: a second guard line provided in the peripheral area, located between the first touch driving signal line and the second touch driving signal line, and separated from the first touch driving signal line and from the second touch driving signal line, wherein a distance between the second guard line and the first touch driving signal line is less than a width of the second guard line, and/or a distance between the second guard line and the second touch driving signal line is less than the width of the second guard line. ### Claim 20 (depends on 12) The display apparatus according to claim 12, wherein the base substrate comprises: a base; a light-emitting layer provided on the base; and an encapsulation layer provided on a side of the light-emitting layer away from the base, wherein the touch electrode and the touch signal line are both provided on a surface of the encapsulation layer away from the light-emitting layer.