WO2022100342A1 - 触控显示面板及其制备方法、触控显示装置 - Google Patents

触控显示面板及其制备方法、触控显示装置 Download PDF

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Publication number
WO2022100342A1
WO2022100342A1 PCT/CN2021/123449 CN2021123449W WO2022100342A1 WO 2022100342 A1 WO2022100342 A1 WO 2022100342A1 CN 2021123449 W CN2021123449 W CN 2021123449W WO 2022100342 A1 WO2022100342 A1 WO 2022100342A1
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Prior art keywords
line
touch
substrate
metal layer
crack detection
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Ceased
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PCT/CN2021/123449
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English (en)
French (fr)
Inventor
柴媛媛
汪杨鹏
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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Priority to US17/799,283 priority Critical patent/US11874984B2/en
Publication of WO2022100342A1 publication Critical patent/WO2022100342A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
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    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04111—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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof

Definitions

  • the present disclosure relates to, but is not limited to, the field of display technology, and in particular, to a touch display panel, a method for manufacturing the same, and a touch display device.
  • touch screen can be divided into: capacitive type, resistive type, infrared type, surface acoustic wave type, electromagnetic type, vibration wave induction type and suppressed total internal reflection optical induction type.
  • capacitive touch screen is widely used in various electronic interactive scene devices due to its unique touch principle, high sensitivity, long life, high light transmittance and other advantages.
  • some display panels use in-screen hole-digging technology, that is, a hole-digging area for placing hardware such as front cameras is set in the effective display area.
  • a crack detection (Pannel Crack Detection, PCD) line is designed to detect whether the hole edge is broken (crack) caused by hole cutting due to the hole position.
  • the crack detection line will be related to the touch
  • the control electrode generates coupling, which brings noise to the normal touch signal, which eventually leads to the phenomenon of "random reporting point” and "random operation” at the hole position, which reduces the touch performance.
  • An embodiment of the present application provides a touch display panel, including a substrate, a first metal layer disposed on the substrate, an insulating layer disposed on a side of the first metal layer away from the substrate, and an insulating layer disposed on a side of the insulating layer away from the first metal layer
  • the second metal layer on the side, wherein: one of the first metal layer and the second metal layer includes a plurality of connection bridges, and the other layer includes a touch electrode and a through hole, and the touch electrode includes a first an electrode and a second electrode, the first electrode includes a plurality of first sub-electrodes arranged along the first direction, and adjacent first sub-electrodes are bridged by connecting bridges; the second electrode includes a plurality of first sub-electrodes arranged along the second direction The second sub-electrodes arranged in the direction are connected to each other along the second direction and between two adjacent second sub-electrodes; the through hole penetrates the first sub-electrode and
  • the orthographic projection is a first ring shape
  • the orthographic projection of the ring-shaped isolation line on the substrate is a second ring shape
  • the side of the first ring shape close to the second ring shape is located on the side of the second ring shape close to the first ring shape. within the range of one side.
  • the touch display panel includes a substrate, a first metal layer disposed on the substrate, an insulating layer disposed on a side of the first metal layer away from the substrate, and an insulating layer disposed on a side of the insulating layer away from the first metal layer side of the second metal layer, where:
  • One of the first metal layer and the second metal layer includes a plurality of connection bridges, the other layer includes the touch electrodes and the through holes, and the touch electrodes include first electrodes and second electrodes, so
  • the first electrode includes a plurality of first sub-electrodes arranged along the first direction, and adjacent first sub-electrodes are bridged by connecting bridges;
  • the second electrode includes a plurality of second sub-electrodes arranged along the second direction , and along the second direction, two adjacent second sub-electrodes are connected to each other; the through hole penetrates the first sub-electrode and the second sub-electrode.
  • the annular crack detection line, the annular isolation line, the edge crack detection line, the edge isolation line, the transition crack detection line, and the transition isolation line are located in the first on one or more metal layers of the metal layer and the second metal layer.
  • the first sub-electrode includes a plurality of first protrusions and a first spacer between the plurality of first protrusions
  • the second sub-electrode includes a plurality of first protrusions Two protruding parts and a second spacing part located between the plurality of second protruding parts, the first protruding part is located in the second spacing part, the second protruding part is located in the second spacing part in a partition.
  • one of the first metal layer and the second metal layer further includes a ground wire
  • the other layer further includes a ground wire
  • the ground wire and the ground connection wire are located in In the peripheral area, the orthographic projection of the ground connection line on the substrate overlaps with the orthographic projection of the edge crack detection line on the substrate, and the two sides of the ground connection line along the second direction
  • the ground wire is electrically connected to the ground wire connecting wire through the via hole on the insulating layer.
  • one of the first metal layer and the second metal layer further includes a ground wire, the ground wire is located in the peripheral area, and the orthographic projection of the ground wire on the substrate is the same as that of the ground wire.
  • the orthographic projections of the edge crack detection lines on the substrate overlap.
  • one of the first metal layer and the second metal layer further includes a touch wire connecting wire
  • the other layer further includes a touch wire
  • the touch wire is connected to the touch wire
  • the line is located in the peripheral area
  • the orthographic projection of the touch wire connection line on the substrate overlaps with the orthographic projection of the edge crack detection line on the substrate
  • the touch wire connection line is in the
  • the orthographic projection on the substrate overlaps with the orthographic projection of the edge isolation line on the substrate, and the touch wires on both sides of the touch wire connecting line in the second direction are connected to the touch wires
  • the wires are electrically connected through vias on the insulating layer.
  • one of the first metal layer and the second metal layer further includes a touch wire, the touch wire is located in the peripheral area, and the touch wire is on the substrate
  • the orthographic projection of the edge crack detection line overlaps with the orthographic projection of the edge crack detection line on the substrate, and the orthographic projection of the touch wire on the substrate intersects with the orthographic projection of the edge isolation line on the substrate stacking, the touch leads and the touch electrodes are electrically connected through vias on the insulating layer.
  • one of the first metal layer and the second metal layer further includes an electrode connection line, the electrode connection line is located in the transition connection region, and the electrode connection line is located along the second direction.
  • the second sub-electrodes on both sides of the transition connection region and the electrode connecting lines are electrically connected through via holes on the insulating layer.
  • the touch display panel further includes an electrode connecting line, the transition crack detection line and the transition isolation line are located in one of the first metal layer and the second metal layer, and the electrode The connection line is located in the other layer of the first metal layer and the second metal layer, the electrode connection line is located in the transition connection area, and the first metal layer on both sides of the transition connection area along the second direction The two sub-electrodes are electrically connected through the electrode connecting wire.
  • Embodiments of the present disclosure further provide a touch display device, including the aforementioned touch display panel.
  • An embodiment of the present disclosure also provides a method for fabricating a touch display panel, including: forming a first metal layer on a substrate; forming an insulating layer on a side of the first metal layer away from the substrate; and forming an insulating layer on the insulating layer away from the first metal layer
  • a second metal layer is formed on one side of the first metal layer, one of the first metal layer and the second metal layer includes a plurality of connection bridges, and the other layer includes a first electrode, a second electrode and a through hole, and the first metal layer includes a plurality of connection bridges.
  • the electrode includes a plurality of first sub-electrodes arranged along the first direction, and adjacent first sub-electrodes are bridged by the connection bridge;
  • the second electrode includes a plurality of second sub-electrodes arranged along the second direction, And along the second direction, two adjacent second sub-electrodes are connected to each other;
  • any one or more metal layers in the first metal layer and the second metal layer also include an annular crack surrounding the through hole A detection line and an annular isolation line surrounding the annular crack detection line, the orthographic projection of the annular crack detection line on the substrate is a first ring, the orthographic projection of the annular isolation line on the substrate is a second ring, the The side of the first ring shape close to the second ring shape is located within the range of the side of the second ring shape close to the first ring shape.
  • FIG. 1 is a schematic structural diagram of a touch display panel according to an embodiment of the disclosure
  • FIG. 2 is an enlarged schematic structural diagram of a region A of the touch display panel in FIG. 1;
  • FIG. 3 is a schematic cross-sectional structure diagram of the touch display panel in the direction BB of FIG. 2;
  • FIG. 5 is another schematic cross-sectional structure diagram of the touch display panel in the direction BB in FIG. 2;
  • FIG. 6 is a schematic diagram of another cross-sectional structure of the touch display panel in the direction CC of FIG. 2;
  • FIG. 7 is a schematic diagram of a substrate after forming a first metal layer pattern according to an embodiment of the disclosure.
  • FIG. 8 is a schematic diagram of a substrate after forming an insulating layer pattern according to an embodiment of the disclosure.
  • FIG. 9 is a schematic flowchart of a method for fabricating a touch display panel according to an embodiment of the disclosure.
  • a crack detection line is designed at the position of the mounting hole.
  • the end of the crack detection line is connected to the data line of the screen through a thin film transistor (TFT), and the crack detection line and the data line are respectively connected to the source of the TFT. and drain.
  • TFT thin film transistor
  • the signal on the data line will continuously change in voltage in the form of a square wave.
  • the voltage change range of the signal on the data line is roughly between 2V and 6V.
  • the voltage on the crack detection line will be pulled by the signal on the data line through the TFT, resulting in unstable voltage on the crack detection line, and the voltage fluctuation range on the crack detection line is about 0mV to 100mV.
  • the crack detection line passes through the touch driving electrode or the touch sensing electrode, and there is a coupling capacitance between the crack detection line and the passing touch driving electrode or touch sensing electrode, and the voltage change on the crack detection line will The voltage change of the touch electrodes is caused, and the voltage change is the introduced touch noise.
  • Embodiments of the present disclosure provide a touch display panel, a method for fabricating the same, and a touch display device, which can effectively reduce the voltage change of the touch electrode caused by the voltage change of the crack detection line, that is, effectively reduce the touch noise, thereby improving the overall Touch performance of a touch display panel.
  • an isolation line is arranged between the crack detection line and the touch electrode in the whole process, and the isolation line is designed to fully wrap the crack detection line, which plays an excellent shielding role and effectively reduces crack detection.
  • the voltage change of the touch electrode caused by the voltage change of the line effectively reduces the touch noise and improves the touch performance of the entire touch display panel.
  • the through hole detection area 12 includes an annular crack detection line 45a and an annular isolation line 44a
  • the transition connection area 13 includes a transition crack detection line 45b and a transition isolation line 44b
  • the peripheral area 11 includes an edge crack detection line 45c and an edge isolation line 44c.
  • the annular crack The detection line 45a is electrically connected to the edge crack detection line 45c through the transition crack detection line 45b
  • the annular isolation line 44a is electrically connected to the edge isolation line 44c through the transition isolation line 44b.
  • the orthographic projection of the edge isolation line 44c on the substrate is located between the orthographic projection of the touch electrode on the substrate and the orthographic projection of the edge crack detection line 45c on the substrate; the orthographic projection of the transition isolation line 44b on the substrate is located on the transition crack detection line Between the orthographic projection of 45b on the substrate and the orthographic projection of the touch electrodes on the substrate; the orthographic projection of the annular crack detection line 45a on the substrate is a first ring, and the orthographic projection of the annular isolation line 44a on the substrate is a second ring , the side of the first ring near the second ring is located within the range of the side of the second ring near the first ring.
  • the touch display panel in a plane perpendicular to the touch display panel, includes a substrate 100 , a first metal layer disposed on the substrate 100 , and the first metal layer disposed away from the substrate 100 The insulating layer 30 on one side and the second metal layer disposed on the side of the insulating layer 30 away from the first metal layer.
  • one of the first metal layer and the second metal layer includes a plurality of connection bridges 21
  • the other layer of the first metal layer and the second metal layer includes touch electrodes and through holes 43.
  • the touch electrode includes a first electrode 41 and a second electrode 42.
  • the first electrode 41 and the second electrode 42 are arranged to cross each other.
  • the first electrode 41 includes a plurality of first sub-electrodes arranged along the first direction.
  • annular crack detection line 45a, annular isolation line 44a, transition crack detection line 45b, transition isolation line 44b, edge crack detection line 45c, and edge isolation line 44c on any one or more of the first metal layer and the second metal layer.
  • the annular crack detection line 45a, the transition crack detection line 45b and the edge crack detection line 45c may be located on the same layer (that is, the annular crack detection line 45a, the transition crack detection line 45b and the edge crack detection line 45c may all be located on the same layer On the first metal layer, or the annular crack detection line 45a, the transition crack detection line 45b and the edge crack detection line 45c may all be located on the second metal layer), or may not be located on the same layer (ie, the annular crack detection line 45a, A portion of the transition crack detection line 45b and the edge crack detection line 45c are located on the first metal layer, and the other part of the annular crack detection line 45a, the transition crack detection line 45b and the edge crack detection line 45c are located on the second metal layer).
  • the annular isolation line 44a, the transition isolation line 44b and the edge isolation line 44c may be located on the same layer (that is, the annular isolation line 44a, the transition isolation line 44b and the edge isolation line 44c may all be located on the first metal layer, Or the ring isolation line 44a, the transition isolation line 44b, and the edge isolation line 44c may all be located on the second metal layer), or may not be located on the same layer (ie, the ring isolation line 44a, the transition isolation line 44b, and the edge isolation line 44c) A part of the ring isolation line 44a, the transition isolation line 44b and the edge isolation line 44c are located on the second metal layer).
  • the crack detection line (including any one or more of the annular crack detection line 45a, the transition crack detection line 45b and the edge crack detection line 45c) and the isolation line (including the annular isolation line 44a, the transition isolation line 44b and Any one or more of edge isolation lines 44c) may be located on the same layer (eg, annular crack detection line 45a, transition crack detection line 45b, edge crack detection line 45c, annular isolation line 44a, transition isolation line 44b, and edge isolation line 45c).
  • the first sub-electrode includes a plurality of first protrusions 411 and a first spacer 412 located between the plurality of first protrusions 411
  • the second sub-electrode includes a plurality of second protrusions 421 and a second spacer 422 located between the plurality of second protrusions 421.
  • the first protrusion 411 is located in the second spacer 422, and the second protrusion
  • the portion 421 is located in the first spacer portion 412 .
  • the edge isolation line 44c is connected to the touch IC, and the touch IC transmits the shielding signal to the through hole area through the edge isolation line 44c, the transition isolation line 44b and the annular isolation line 44a.
  • the shielding effect can effectively reduce the voltage change of the touch electrode caused by the voltage change on the crack detection line, that is, effectively reduce the touch noise, so that the touch display device can exhibit excellent touch performance.
  • the edge isolation line 44c includes two first connection ends, the edge crack detection line 45c includes two second connection ends; the annular isolation line 44a includes two third connection ends end, the annular crack detection line 45a includes two fourth connection ends; the transition connection area includes two transition isolation lines 44b and two transition crack detection lines 45b.
  • a first connection end and a third connection end are connected by a transition isolation line 44b, another first connection end and another third connection end are connected by another transition isolation line 44b, and a second connection end
  • a transition crack detection line 45b is used to connect with one fourth connection end, and another transition crack detection line 45b is connected between the other second connection end and the other fourth connection end.
  • one of the first metal layer and the second metal layer further includes the ground wire connection line 22
  • the other layer includes the edge crack detection line 45c and
  • the ground wire 46, the ground wire 46 and the ground wire connecting wire 22 are located in the peripheral area 11, and the orthographic projection of the ground wire connecting wire 22 on the substrate overlaps with the orthographic projection of the edge crack detection line 45c on the substrate, and the ground wire in the second direction
  • the ground wires 46 on both sides of the wire connecting wire 22 are electrically connected to the ground wire connecting wire 22 through via holes on the insulating layer.
  • one of the first metal layer and the second metal layer further includes a ground wire 46, and the other layer includes an edge crack detection wire 45c.
  • the line 46 is located in the peripheral region, and the orthographic projection of the ground line 46 on the substrate overlaps the orthographic projection of the edge crack detection line 45c on the substrate.
  • one of the first metal layer and the second metal layer further includes the touch wire connection line 23, and the other layer includes the edge isolation line 44c,
  • the edge crack detection line 45c and the touch wire 47, the touch wire 47 and the touch wire connection line 23 are located in the peripheral area 11, the orthographic projection of the touch wire connection line 23 on the substrate and the normal projection of the edge crack detection line 45c on the substrate.
  • the projections overlap, and the orthographic projection of the touch wire connection line 23 on the substrate overlaps with the orthographic projection of the edge isolation line 44c on the substrate.
  • the touch wire 47 on both sides of the touch wire connection wire 23 in the second direction and The touch wire connecting wires 23 are electrically connected through the via holes on the insulating layer 30 .
  • one of the first metal layer and the second metal layer further includes a touch wire 47
  • the other layer includes an edge isolation line 44c and an edge
  • the crack detection line 45c, the touch wire 47 is located in the peripheral area 11, the orthographic projection of the touch wire 47 on the substrate overlaps with the orthographic projection of the edge crack detection line 45c on the substrate, and the orthographic projection of the touch wire 47 on the substrate Overlapped with the orthographic projection of the edge isolation line 44 c on the substrate, the touch leads 47 and the touch electrodes are electrically connected through the via holes on the insulating layer 30 .
  • one of the first metal layer and the second metal layer further includes an electrode connection line 24 , and the electrode connection line 24 is located in the transition connection region 13 along the In the second direction, the second sub-electrodes on both sides of the transitional connection region 13 are electrically connected to the electrode connecting lines 24 through vias on the insulating layer 30 .
  • the touch display panel further includes electrode connecting lines 24 , and transition crack detection lines 45 b and transition isolation lines 44 b are located in the first metal layer and the second metal layer One of the layers, the electrode connection line 24 is located in the other layer of the first metal layer and the second metal layer, the electrode connection line 24 is located in the transition connection region 13, and the second sub-sections on both sides of the transition connection region 13 in the second direction.
  • the electrodes are electrically connected by electrode connecting wires 24 .
  • a driving structure layer, a flat layer, an anode, an organic light-emitting layer, and a cathode are sequentially formed on the substrate, and an encapsulation layer is formed on the side of the cathode away from the substrate to obtain the substrate 100 .
  • the driving structure layer includes a plurality of gate lines and a plurality of data lines, and the vertical intersection of the plurality of gate lines and the plurality of data lines defines a plurality of pixel units arranged in a matrix, each pixel unit includes at least 3 sub-pixels, and each sub-pixel includes One or more thin film transistors (Thin Film Transistor, TFT).
  • TFT Thin Film Transistor
  • one pixel unit may include three sub-pixels, which are a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B, respectively.
  • the preparation process of the driving structure layer may include: first cleaning the substrate, then preparing an active layer on the substrate through a patterning process, then forming a first insulating layer covering the active layer, and then forming a first insulating layer covering the active layer.
  • a gate line and a gate electrode are formed on the insulating layer, then a second insulating layer covering the gate line and the gate electrode is formed, and a data line, a source electrode and a drain electrode are formed on the second insulating layer.
  • the thin film transistor may be a bottom gate structure, a top gate structure, an amorphous silicon (a-Si) thin film transistor, a low temperature polysilicon (LTPS) thin film transistor or an oxide (Oxide) thin film transistor. Not limited.
  • the anode of each sub-pixel is connected to the drain electrode of the thin film transistor in the sub-pixel through a via hole on the flat layer.
  • the organic light-emitting layer may include a stacked hole injection layer (HIL), a hole transport layer (HTL), an emission layer (EML), an electron transport layer (ETL), and an electron injection layer (EIL), wherein the hole transport layer (HTL), an emission layer (EML), an electron transport layer (ETL), and an electron injection layer (EIL) are sequentially disposed on the hole injection layer.
  • the organic light-emitting layer is formed in the pixel opening area to realize the connection between the organic light-emitting layer and the anode.
  • the encapsulation layer can play a role of blocking water and oxygen, preventing external water vapor from eroding the organic light-emitting layer, thereby affecting the performance of the touch display panel.
  • the encapsulation layer may adopt a laminated structure of inorganic material/organic material/inorganic material, and the organic material layer is arranged between two inorganic material layers.
  • a first metal layer pattern is formed on the surface of the packaging layer on the side away from the substrate.
  • the first metal layer may include a plurality of spaced connection bridges 21 , touch wire connection lines 23 , and ground Wire connection wire 22 and electrode connection wire 24 .
  • connection bridge 21 is located in the area where the touch electrodes are to be formed
  • the touch wire connection line 23 is located in the overlapping area of the touch wire to be formed and the crack detection line to be formed, and the overlapping area of the touch wire to be formed and the isolation line to be formed
  • the ground connection line 22 is located in the overlapping area of the ground line to be formed and the crack detection line to be formed
  • the electrode connection line 24 is located in the transition connection area to be formed, and is located in the transition connection area to be formed. between the two sub-electrodes.
  • Forming the first metal layer pattern includes: depositing a conductive film on the substrate, coating a layer of photoresist on the conductive film, exposing and developing the photoresist by using a mask, forming an unexposed area at the position of the bridge layer pattern, The photoresist remains, a fully exposed area is formed at other positions, the photoresist is removed, the conductive film in the fully exposed area is etched and the remaining photoresist is peeled off to form a first metal layer pattern on the substrate.
  • the conductive film can be made of metal materials, or transparent conductive materials, such as indium tin oxide ITO, indium zinc oxide IZO, carbon nanotubes or graphene, and the like.
  • the insulating layer 30 includes a plurality of vias, and the vias include a first via, a second via, The third via hole and the fourth via hole, the first via hole is arranged at both ends of the connection bridge 21 , the second via hole is arranged at both ends of the ground wire connection line 22 , and the third via hole is arranged at the touch wire connection At both ends of the line 23 , the fourth via hole is provided at both ends of the electrode connecting line 24 .
  • the insulating layer can be prepared using a transparent material, so that the touch panel can be used in a touch-integrated display panel.
  • the second metal layer may include a first electrode 41 , a second electrode 42 , and a through hole 43 , annular crack detection line 45a, annular isolation line 44a, edge crack detection line 45c, edge isolation line 44c, transition crack detection line 45b, transition isolation line 44b, ground line 46 and touch lead 47 patterns
  • the first electrode 41 includes multiple two first sub-electrodes arranged along the first direction, two adjacent first sub-electrodes along the first direction are electrically connected with a connection bridge 21 through the first via hole
  • the second electrode 42 includes a plurality of second electrodes along the second The second sub-electrodes arranged in the second direction are connected to each other along the second direction, and the first direction and the second direction intersect; the through hole 43 penetrates the first sub-electrode and the second sub-electrode
  • the orthographic projection of the annular crack detection line 45 includes multiple two first sub-electrodes arranged along the first direction, two adjacent first sub-electrodes along the first direction are electrical
  • the transition crack detection line 45b includes a first transition crack detection line and a second transition crack detection line
  • the transition isolation line 44b includes a first transition isolation line and a second transition isolation line
  • the edge isolation line 44c and the edge crack detection line 45c are arranged at the periphery
  • the edge isolation line 44c is arranged between the display area and the edge crack detection line 45c
  • the edge isolation line 44c includes two first connection ends
  • the edge crack detection line 45c includes two second connection ends
  • the annular isolation line includes two There are three third connection ends
  • the annular crack detection line 45a includes two fourth connection ends; one first connection end and one third connection end are connected by a first transition isolation line, the other first connection end and the other
  • the three connecting ends are connected by a second transition isolation line, one second connecting end and one fourth connecting end are connected by a first transition crack detection line, and the other second connecting end and another fourth connecting end Connect through the second transition crack detection line.
  • the ground wire 46 is provided between the edge crack detection line 45c and the edge isolation line 44c
  • the touch wire 47 is provided between the edge isolation line 44c and the touch electrode
  • the ground wire connects the line 22 in the second direction
  • the ground wires 46 on both sides and the ground wire connecting wire 22 are electrically connected through the second via holes
  • the touch wires 47 on both sides of the touch wire connecting wire 23 and the touch wire connecting wire 23 in the second direction pass through the third via hole
  • the second sub-electrodes on both sides of the transitional connection region along the second direction are electrically connected to the electrode connecting lines 24 through fourth via holes.
  • both the first direction and the second direction are perpendicular to the thickness direction of the encapsulation layer.
  • This embodiment of the present disclosure does not limit the size of the included angle between the first direction and the second direction, for example, the two may be perpendicular.
  • both the first sub-electrode and the second sub-electrode have a grid structure, and the materials of the first sub-electrode and the second sub-electrode are both metal materials. Because the metal material has low resistance, good conductivity, and high sensitivity, the transmission delay of the electrical signal in the first sub-electrode and the second sub-electrode can be avoided, and the touch effect can be improved.
  • the shape of the mesh in the mesh structure can be a regular polygon or an irregular polygon shape.
  • the annular crack detection line 45a, the annular isolation line 44a, the transition crack detection line 45b, the transition isolation line 44b, the edge crack detection line 45c, the edge isolation line 44c, the ground line 46 and the touch lead 47 are located in the second The process of preparing the touch display panel is described on the metal layer as an example, but in actual implementation, the annular crack detection line 45a, the annular isolation line 44a, the transition crack detection line 45b, the transition isolation line 44b, the edge crack detection line 45c, the edge isolation line
  • One or more of the line 44c, the ground line 46 and the touch lead 47 may also be located on the first metal layer, which is not limited in the present disclosure.
  • Embodiments of the present disclosure also provide a method for fabricating a touch display panel.
  • the touch display panel includes a substrate, a touch display area and a peripheral area located on the substrate.
  • the touch display area includes a through hole area and a surrounding through hole area.
  • the through-hole detection area and the transition connection area between the through-hole detection area and the peripheral area as shown in FIG. 9 , the preparation method of the touch display panel according to the embodiment of the present disclosure includes:
  • a second metal layer is formed on the side of the insulating layer away from the first metal layer.
  • Any one or more metal layers of the first metal layer and the second metal layer include annular crack detection lines, annular isolation lines, and transition crack detection lines.
  • Line, transition isolation line, edge crack detection line and edge isolation line, annular crack detection line and annular isolation line are located in the through hole detection area, transition crack detection line and transition isolation line are located in the transition connection area, edge crack detection line and edge isolation line Located in the peripheral area, the annular crack detection line is electrically connected to the edge crack detection line through the transition crack detection line, the annular isolation line is electrically connected to the edge isolation line through the transition isolation line, and the orthographic projection of the edge isolation line on the substrate is located at the touch electrode on the substrate.
  • the orthographic projection of the transition isolation line on the substrate is located between the orthographic projection of the transition crack detection line on the substrate and the orthographic projection of the touch electrode on the substrate
  • the orthographic projection of the annular crack detection line on the substrate is a first ring
  • the orthographic projection of the annular isolation line on the substrate is a second ring
  • the side of the first ring close to the second ring is located on a side of the second ring near the first ring. within the range of the side.
  • one of the first metal layer and the second metal layer includes a plurality of connection bridges
  • the other layer includes a first electrode, a second electrode and a through hole
  • the first electrode includes a plurality of The first sub-electrodes arranged along the first direction are bridged by connecting bridges between adjacent first sub-electrodes
  • the second electrode includes a plurality of second sub-electrodes arranged along the second direction The adjacent two second sub-electrodes are connected to each other.
  • one of the first metal layer and the second metal layer further includes a ground wire connection line
  • the other layer includes an edge crack detection wire and a ground wire
  • the ground wire and the ground wire connection wire are located at In the peripheral area
  • the orthographic projection of the ground wire connection line on the substrate overlaps with the orthographic projection of the edge crack detection line on the substrate
  • the ground wire and the ground wire connection wire on both sides of the ground wire connection line in the second direction pass through the insulating layer. via electrical connection.
  • one of the first metal layer and the second metal layer further includes a touch wire connection wire
  • the other layer includes an edge isolation wire, an edge crack detection wire, and a touch wire.
  • the lead wire and the touch wire connection line are located in the peripheral area, the orthographic projection of the touch wire connection line on the substrate overlaps with the orthographic projection of the edge crack detection line on the substrate, and the orthographic projection of the touch wire connection line on the substrate and the edge
  • the orthographic projections of the isolation wires on the substrate overlap, and the touch wires on both sides of the touch wire connecting wires in the second direction are electrically connected with the touch wire connecting wires through the via holes on the insulating layer.
  • one of the first metal layer and the second metal layer further includes electrode connection lines, the electrode connection lines are located in the transition connection region, and the second metal layers on both sides of the transition connection region in the second direction
  • the sub-electrodes and the electrode connecting lines are electrically connected through the via holes on the insulating layer.
  • the touch display panel further includes an electrode connection line, the transition crack detection line and the transition isolation line are located in one of the first metal layer and the second metal layer, and the electrode connection line is located in the first metal layer. layer and the other layer of the second metal layer, the electrode connection line is located in the transition connection region, and the second sub-electrodes on both sides of the transition connection region along the second direction are electrically connected through the electrode connection line.
  • the damage of the touch electrode caused by the voltage change of the crack detection line is effectively reduced.
  • the voltage change effectively reduces touch noise and improves the touch performance of the entire touch display panel.
  • Embodiments of the present disclosure further provide a touch display device, including the touch display panel of the foregoing embodiments.
  • the touch display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a TV, a monitor, a notebook computer, a digital photo frame, and a navigator.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, or It can be connected in one piece; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be internal communication between two components.
  • installed should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, or It can be connected in one piece; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be internal communication between two components.

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Abstract

一种触控显示面板及其制备方法、触控显示装置，触控显示面板包括触控显示区和周边区，触控显示区包括通孔、环绕通孔的通孔检测区以及位于通孔检测区和周边区之间的过渡连接区，通孔检测区包括环形裂纹检测线和环形隔离线，过渡连接区包括过渡裂纹检测线和过渡隔离线，周边区包括边缘裂纹检测线和边缘隔离线，环形裂纹检测线通过过渡裂纹检测线与边缘裂纹检测线电连接，环形隔离线通过过渡隔离线与边缘隔离线电连接；边缘隔离线位于触控电极和边缘裂纹检测线之间；过渡隔离线位于过渡裂纹检测线和触控电极之间；环形裂纹检测线位于环形隔离线的内侧。

Description

触控显示面板及其制备方法、触控显示装置
本申请要求于2020年11月10日提交中国专利局、申请号为2020112491565、发明名称为“触控显示面板及其制备方法、触控显示装置”的中国专利申请的优先权，其内容应理解为通过引用的方式并入本公开中。
技术领域
本公开涉及但不限于显示技术领域，尤其涉及一种触控显示面板及其制备方法、触控显示装置。
背景技术
随着显示技术的飞速发展，触控技术已经应用到各种电子设备和各个领域中，越来越受到广大使用者的追捧。按照工作原理，触控屏可以分为：电容式、电阻式、红外线式、表面声波式、电磁式、振波感应式以及受抑全内反射光学感应式等。其中，电容式触摸屏以其独特的触控原理，凭借高灵敏度、长寿命、高透光率等优点，广泛应用于各种电子交互场景设备中。
为了实现更大的屏占比，一些显示面板使用了屏内挖孔技术，即在有效显示区内设置用于放置前置摄像头等硬件的挖孔区域。对于集成触控功能的显示面板来说，由于孔位置设计有用于检测孔切割导致的孔边缘断裂(Crack)与否的裂纹检测(Pannel Crack Detection，PCD)线，但是，裂纹检测线会与触控电极产生耦合，给正常的触控信号带来噪声，最终导致在孔位置出现“乱报点”、“乱操作”现象，降低了触控性能。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本申请实施例提供了一种触控显示面板，包括基板、设置在基板上的第 一金属层、设置在第一金属层远离基板一侧的绝缘层以及设置在绝缘层远离第一金属层一侧的第二金属层，其中：所述第一金属层和第二金属层中的其中一层包括多个连接桥，另一层包括触控电极和通孔，所述触控电极包括第一电极和第二电极，所述第一电极包括多个沿第一方向排列的第一子电极，相邻的第一子电极之间通过连接桥桥接；所述第二电极包括多个沿第二方向排列的第二子电极，且沿第二方向上、相邻两个第二子电极之间相互连接；所述通孔贯穿所述第一子电极和第二子电极；所述第一金属层和第二金属层中的任意一个或多个金属层还包括环绕所述通孔的环形裂纹检测线和环绕所述环形裂纹检测线的环形隔离线，所述环形裂纹检测线在基板上的正投影为第一环形，所述环形隔离线在基板上的正投影为第二环形，所述第一环形靠近所述第二环形的一侧位于所述第二环形靠近所述第一环形的一侧的范围之内。
在示例性实施例中，所述触控显示面板包括基板、设置在基板上的第一金属层、设置在第一金属层远离基板一侧的绝缘层以及设置在绝缘层远离第一金属层一侧的第二金属层，其中：
所述第一金属层和第二金属层中的其中一层包括多个连接桥，另一层包括所述触控电极和通孔，所述触控电极包括第一电极和第二电极，所述第一电极包括多个沿第一方向排列的第一子电极，相邻的第一子电极之间通过连接桥桥接；所述第二电极包括多个沿第二方向排列的第二子电极，且沿第二方向上、相邻两个第二子电极之间相互连接；所述通孔贯穿所述第一子电极和第二子电极。
在示例性实施例中，所述环形裂纹检测线、所述环形隔离线、所述边缘裂纹检测线、所述边缘隔离线、所述过渡裂纹检测线、所述过渡隔离线位于所述第一金属层和第二金属层中的一层或多层金属层上。
在示例性实施例中，所述第一子电极包括多个第一凸起部以及位于所述多个第一凸起部之间的第一间隔部，所述第二子电极包括多个第二凸起部以及位于所述多个第二凸起部之间的第二间隔部，所述第一凸起部位于所述第二间隔部中，所述第二凸起部位于所述第一间隔部中。
在示例性实施例中，所述第一金属层和第二金属层中的其中一层还包括 地线连接线，另一层还包括地线，所述地线和所述地线连接线位于所述周边区，所述地线连接线在基板上的正投影与所述边缘裂纹检测线在所述基板上的正投影交叠，沿所述第二方向上所述地线连接线两侧的地线与所述地线连接线通过所述绝缘层上的过孔电连接。
在示例性实施例中，所述第一金属层和第二金属层中的其中一层还包括地线，所述地线位于所述周边区，所述地线在基板上的正投影与所述边缘裂纹检测线在所述基板上的正投影交叠。
在示例性实施例中，所述第一金属层和第二金属层中的其中一层还包括触控引线连接线，另一层还包括触控引线，所述触控引线和触控引线连接线位于所述周边区，所述触控引线连接线在所述基板上的正投影与所述边缘裂纹检测线在所述基板上的正投影交叠，且所述触控引线连接线在所述基板上的正投影与所述边缘隔离线在所述基板上的正投影交叠，沿所述第二方向上所述触控引线连接线两侧的触控引线与所述触控引线连接线通过所述绝缘层上的过孔电连接。
在示例性实施例中，所述第一金属层和第二金属层中的其中一层还包括触控引线，所述触控引线位于所述周边区，所述触控引线在所述基板上的正投影与所述边缘裂纹检测线在所述基板上的正投影交叠，且所述触控引线在所述基板上的正投影与所述边缘隔离线在所述基板上的正投影交叠，所述触控引线与所述触控电极通过所述绝缘层上的过孔电连接。
在示例性实施例中，所述第一金属层和第二金属层中的其中一层还包括电极连接线，所述电极连接线位于所述过渡连接区，沿所述第二方向上所述过渡连接区两侧的所述第二子电极与所述电极连接线通过所述绝缘层上的过孔电连接。
在示例性实施例中，所述触控显示面板还包括电极连接线，所述过渡裂纹检测线、过渡隔离线位于所述第一金属层和第二金属层中的其中一层，所述电极连接线位于所述第一金属层和第二金属层中的另一层，所述电极连接线位于所述过渡连接区，沿所述第二方向上所述过渡连接区两侧的所述第二子电极通过所述电极连接线电连接。
本公开实施例还提供了一种触控显示装置，包括前述的触控显示面板。
本公开实施例还提供了一种触控显示面板的制备方法，包括：在基板上形成第一金属层；在第一金属层远离基板的一侧形成绝缘层；在绝缘层远离第一金属层的一侧形成第二金属层，所述第一金属层和第二金属层中的其中一层包括多个连接桥，另一层包括第一电极、第二电极和通孔，所述第一电极包括多个沿第一方向排列的第一子电极，相邻的第一子电极之间通过所述连接桥桥接；所述第二电极包括多个沿第二方向排列的第二子电极，且沿第二方向上、相邻两个第二子电极之间相互连接；所述第一金属层和第二金属层中的任意一个或多个金属层还包括环绕所述通孔的环形裂纹检测线和环绕所述环形裂纹检测线的环形隔离线，所述环形裂纹检测线在基板上的正投影为第一环形，所述环形隔离线在基板上的正投影为第二环形，所述第一环形靠近第二环形的一侧位于所述第二环形靠近所述第一环形的一侧的范围之内。
在阅读并理解了附图概述和本公开的实施方式后，可以明白其他方面。
附图说明
附图用来提供对本公开技术方案的进一步理解，并且构成说明书的一部分，与本公开的实施例一起用于解释本公开的技术方案，并不构成对本公开技术方案的限制。附图中各部件的形状和大小不反映真实比例，目的只是示意说明本公开内容。
图1为本公开实施例的一种触控显示面板的结构示意图；
图2为图1中触控显示面板A区域的放大结构示意图；
图3为图2中触控显示面板BB向的一种剖面结构示意图；
图4为图2中触控显示面板CC向的一种剖面结构示意图；
图5为图2中触控显示面板BB向的另一种剖面结构示意图；
图6为图2中触控显示面板CC向的另一种剖面结构示意图；
图7为本公开实施例一种形成第一金属层图案后的基板示意图；
图8为本公开实施例一种形成绝缘层图案后的基板示意图；
图9为本公开实施例的一种触控显示面板的制备方法的流程示意图。
具体实施方式
下面结合附图和实施例对本公开的实施方式作进一步详细描述。以下实施例用于说明本公开，但不用来限制本公开的范围。在不冲突的情况下，本公开中的实施例及实施例中的特征可以相互任意组合。
在实际应用过程中，为了追求更大的有效显示区域面积，减少边框，一些终端厂商开始将用于预留前置摄像头等硬件的安装位置的安装孔，设置在显示面板上的有效显示(Active Area，AA)区域。
在一些触控显示面板中，安装孔位置设计有裂纹检测线，该裂纹检测线的末端通过一个薄膜晶体管(TFT)与屏幕的数据线连接，裂纹检测线和数据线分别连接该TFT的源极和漏极。在屏幕正常工作时，数据线上的信号会以方波的形式不断进行电压变化，数据线上的信号的电压变化范围大致在2V至6V之间，由于该TFT存在寄生电容和TFT自身的漏电，裂纹检测线上的电压会通过该TFT被数据线上的信号拉动，导致裂纹检测线上的电压不稳定，裂纹检测线上的电压波动范围约为0mV至100mV。在安装孔位置，裂纹检测线穿过触控驱动电极或者触控感应电极，裂纹检测线与穿过的触控驱动电极或者触控感应电极之间存在耦合电容，裂纹检测线上的电压变化会引起触控电极的电压变化，此电压变化即为引入的触控噪声。
本公开实施例提供了一种触控显示面板及其制备方法、触控显示装置，能够有效降低裂纹检测线的电压变化引起的触控电极的电压变化，即有效降低触控噪声，进而提高整个触控显示面板的触控性能。
本公开实施例提供了一种触控显示面板，该触控显示面板包括基板以及位于基板上的触控显示区和周边区，触控显示区包括触控电极、贯穿触控电极的通孔、环绕通孔的通孔检测区以及位于通孔检测区和周边区之间的过渡连接区，其中：通孔检测区包括环形裂纹检测线和环形隔离线，过渡连接区包括过渡裂纹检测线和过渡隔离线，周边区包括边缘裂纹检测线和边缘隔离线，环形裂纹检测线通过过渡裂纹检测线与边缘裂纹检测线电连接，环形隔 离线通过过渡隔离线与边缘隔离线电连接；边缘隔离线在基板上的正投影位于触控电极在基板上的正投影和边缘裂纹检测线在基板上的正投影之间；过渡隔离线在基板上的正投影位于过渡裂纹检测线在基板上的正投影和触控电极在基板上的正投影之间；环形裂纹检测线在基板上的正投影为第一环形，环形隔离线在基板上的正投影为第二环形，第一环形靠近第二环形的一侧位于第二环形靠近第一环形的一侧的范围之内。
本公开实施例提供的触控显示面板，通过在裂纹检测线和触控电极之间全程设置隔离线，通过隔离线对裂纹检测线的全包裹设计，起到优异的屏蔽作用，有效降低裂纹检测线的电压变化引起的触控电极的电压变化，即有效降低触控噪声，提高了整个触控显示面板的触控性能。
下面通过实施例详细说明本公开的技术方案。
图1为本公开实施例的一种触控显示面板的结构示意图，图2为图1中触控显示面板A区域的放大结构示意图，图3为图2触控显示面板的BB向剖面图，图4为图2触控显示面板的CC向剖面图，如图1至图4所示，本实施例的触控显示面板包括基板100以及位于基板100上的触控显示区10和周边区11，所述触控显示区10包括触控电极、贯穿触控电极的通孔43、环绕通孔43的通孔检测区12以及位于通孔检测区12和周边区11之间的过渡连接区13。
通孔检测区12包括环形裂纹检测线45a和环形隔离线44a，过渡连接区13包括过渡裂纹检测线45b和过渡隔离线44b，周边区11包括边缘裂纹检测线45c和边缘隔离线44c，环形裂纹检测线45a通过过渡裂纹检测线45b与边缘裂纹检测线45c电连接，环形隔离线44a通过过渡隔离线44b与边缘隔离线44c电连接。
边缘隔离线44c在基板上的正投影位于触控电极在基板上的正投影和边缘裂纹检测线45c在基板上的正投影之间；过渡隔离线44b在基板上的正投影位于过渡裂纹检测线45b在基板上的正投影和触控电极在基板上的正投影之间；环形裂纹检测线45a在基板上的正投影为第一环形，环形隔离线44a在基板上的正投影为第二环形，第一环形靠近第二环形的一侧位于第二环形 靠近第一环形的一侧的范围之内。
在一种示例性实施例中，在垂直于该触控显示面板的平面内，该触控显示面板包括基板100、设置在基板100上的第一金属层、设置在第一金属层远离基板100一侧的绝缘层30以及设置在绝缘层30远离第一金属层一侧的第二金属层。
其中，如图1所示，第一金属层和第二金属层中的其中一层包括多个连接桥21，第一金属层和第二金属层中的另一层包括触控电极和通孔43，触控电极包括第一电极41和第二电极42，第一电极41和第二电极42相互交叉设置，第一电极41包括多个沿第一方向排列的第一子电极，相邻的第一子电极之间通过连接桥21桥接；第二电极42包括多个沿第二方向排列的第二子电极，且沿第二方向上、相邻两个第二子电极之间相互连接；通孔43贯穿第一子电极和第二子电极。
在一种示例性实施例中，如图3至图6所示，环形裂纹检测线45a、环形隔离线44a、过渡裂纹检测线45b、过渡隔离线44b、边缘裂纹检测线45c和边缘隔离线44c位于第一金属层和第二金属层中的任意一个或多个金属层上。
本实施例中，环形裂纹检测线45a、过渡裂纹检测线45b和边缘裂纹检测线45c可以位于同一层上(即，环形裂纹检测线45a、过渡裂纹检测线45b和边缘裂纹检测线45c可以均位于第一金属层上，或者环形裂纹检测线45a、过渡裂纹检测线45b和边缘裂纹检测线45c可以均位于第二金属层上)，也可以不位于同一层上(即，环形裂纹检测线45a、过渡裂纹检测线45b和边缘裂纹检测线45c中的一部分位于第一金属层上，环形裂纹检测线45a、过渡裂纹检测线45b和边缘裂纹检测线45c中的另一部分位于第二金属层上)。
本实施例中，环形隔离线44a、过渡隔离线44b和边缘隔离线44c可以位于同一层上(即，环形隔离线44a、过渡隔离线44b和边缘隔离线44c可以均位于第一金属层上，或者环形隔离线44a、过渡隔离线44b和边缘隔离线44c可以均位于第二金属层上)，也可以不位于同一层上(即，环形隔离线44a、过渡隔离线44b和边缘隔离线44c中的一部分位于第一金属层上，环形隔离线44a、过渡隔离线44b和边缘隔离线44c中的另一部分位于第二 金属层上)。
本实施例中，裂纹检测线(包括环形裂纹检测线45a、过渡裂纹检测线45b和边缘裂纹检测线45c中的任意一个或多个)和隔离线(包括环形隔离线44a、过渡隔离线44b和边缘隔离线44c中的任意一个或多个)可以位于同一层上(例如，环形裂纹检测线45a、过渡裂纹检测线45b、边缘裂纹检测线45c、环形隔离线44a、过渡隔离线44b和边缘隔离线44c可以均位于第一金属层上，或者均位于第二金属层上)，也可以不位于同一层上(例如，一部分裂纹检测线和隔离线位于第一金属层上，另一部分裂纹检测线和隔离线位于第二金属层上)。
在一种示例性实施例中，如图1和图2所示，第一子电极包括多个第一凸起部411以及位于多个第一凸起部411之间的第一间隔部412，第二子电极包括多个第二凸起部421以及位于多个第二凸起部421之间的第二间隔部422，第一凸起部411位于第二间隔部422中，第二凸起部421位于第一间隔部412中。
在一种示例性实施例中，边缘隔离线44c与触控IC连接，触控IC通过边缘隔离线44c、过渡隔离线44b与环形隔离线44a将屏蔽信号传输到通孔区，利用隔离线的屏蔽作用，有效降低裂纹检测线上的电压变化引起的触控电极的电压变化，即有效降低触控噪声，从而使得触控显示装置表现出优异的触控性能。
在一种示例性实施例中，如图2所示，边缘隔离线44c包括两个第一连接端，边缘裂纹检测线45c包括两个第二连接端；环形隔离线44a包括两个第三连接端，环形裂纹检测线45a包括两个第四连接端；过渡连接区包括两条过渡隔离线44b和两条过渡裂纹检测线45b。
一个第一连接端和一个第三连接端之间通过一条过渡隔离线44b连接，另一个第一连接端和另一个第三连接端之间通过另一条过渡隔离线44b连接，一个第二连接端和一个第四连接端之间通过一条过渡裂纹检测线45b连接，另一个第二连接端和另一个第四连接端之间通过另一条过渡裂纹检测线45b连接。
在一种示例性实施例中，如图2和图4所示，第一金属层和第二金属层 中的其中一层还包括地线连接线22，另一层包括边缘裂纹检测线45c和地线46，地线46和地线连接线22位于周边区11，地线连接线22在基板上的正投影与边缘裂纹检测线45c在基板上的正投影交叠，沿第二方向上地线连接线22两侧的地线46与地线连接线22通过绝缘层上的过孔电连接。
在另一种示例性实施例中，如图2和图6所示，第一金属层和第二金属层中的其中一层还包括地线46，另一层包括边缘裂纹检测线45c，地线46位于周边区，地线46在基板上的正投影与边缘裂纹检测线45c在基板上的正投影交叠。
在一种示例性实施例中，如图2和图4所示，第一金属层和第二金属层中的其中一层还包括触控引线连接线23，另一层包括边缘隔离线44c、边缘裂纹检测线45c和触控引线47，触控引线47和触控引线连接线23位于周边区11，触控引线连接线23在基板上的正投影与边缘裂纹检测线45c在基板上的正投影交叠，且触控引线连接线23在基板上的正投影与边缘隔离线44c在基板上的正投影交叠，沿第二方向上触控引线连接线23两侧的触控引线47与触控引线连接线23通过绝缘层30上的过孔电连接。
在另一种示例性实施例中，如图2和图6所示，第一金属层和第二金属层中的其中一层还包括触控引线47，另一层包括边缘隔离线44c和边缘裂纹检测线45c，触控引线47位于周边区11，触控引线47在基板上的正投影与边缘裂纹检测线45c在基板上的正投影交叠，且触控引线47在基板上的正投影与边缘隔离线44c在基板上的正投影交叠，触控引线47与触控电极通过绝缘层30上的过孔电连接。
在一种示例性实施例中，如图2和图3所示，第一金属层和第二金属层中的其中一层还包括电极连接线24，电极连接线24位于过渡连接区13，沿第二方向上过渡连接区13两侧的第二子电极与电极连接线24通过绝缘层30上的过孔电连接。
在一种示例性实施例中，如图2和图5所示，触控显示面板还包括电极连接线24，过渡裂纹检测线45b、过渡隔离线44b位于第一金属层和第二金属层中的其中一层，电极连接线24位于第一金属层和第二金属层中的另一层， 电极连接线24位于过渡连接区13，沿第二方向上过渡连接区13两侧的第二子电极通过电极连接线24电连接。
下面通过本实施例触控显示面板的制备过程进一步说明本实施例的技术方案。其中，本实施例中所说的“构图工艺”包括沉积膜层、涂覆光刻胶、掩模曝光、显影、刻蚀、剥离光刻胶等处理，本实施例中所说的“光刻工艺”包括涂覆膜层、掩模曝光、显影等处理，是相关技术中成熟的制备工艺。沉积可采用溅射、化学气相沉积等已知工艺，涂覆可采用已知的涂覆工艺，刻蚀可采用已知的方法，在此不做限定。
(1)在衬底上依次形成驱动结构层、平坦层、阳极、有机发光层、阴极，并在阴极远离衬底的一侧形成封装层，得到基板100。
驱动结构层包括多条栅线和多条数据线，多条栅线和多条数据线垂直交叉限定出多个矩阵排布的像素单元，每个像素单元包括至少3个子像素，每个子像素包括一个或多个薄膜晶体管(Thin Film Transistor，TFT)。本实施例中，一个像素单元可以包括3个子像素，分别为红色子像素R、绿色子像素G和蓝色子像素B。当然，本实施例方案也适用于一个像素单元包括4个子像素(红色子像素R、绿色子像素G、蓝色子像素B和白色子像素W)情形。本实施例中，驱动结构层的制备过程可以包括：先对衬底进行清洗，然后通过构图工艺在衬底上制备出有源层，随后形成覆盖有源层的第一绝缘层，在第一绝缘层上形成栅线和栅电极，随后形成覆盖栅线和栅电极的第二绝缘层，在第二绝缘层上形成数据线、源电极和漏电极。其中，薄膜晶体管可以是底栅结构，也可以是顶栅结构，可以是非晶硅(a-Si)薄膜晶体管，也可以是低温多晶硅(LTPS)薄膜晶体管或氧化物(Oxide)薄膜晶体管，在此不做限定。
每个子像素的阳极通过平坦层上的过孔与该子像素中薄膜晶体管的漏电极连接。有机发光层可以包括叠设的空穴注入层(HIL)、空穴传输层(HTL)、发光层(EML)、电子传输层(ETL)和电子注入层(EIL)，其中，空穴传输层(HTL)、发光层(EML)、电子传输层(ETL)和电子注入层(EIL)依次设置在空穴注入层上。有机发光层形成在像素开口区域内，实现有机发光层与阳极连接。
封装层可以起到阻水阻氧的作用，防止外部水汽对有机发光层的侵蚀，从而影响该触控显示面板的性能。封装层可以采用无机材料/有机材料/无机材料的叠层结构，有机材料层设置在两个无机材料层之间。
(2)在封装层远离衬底一侧的表面，形成第一金属层图案，如图7所示，第一金属层可以包括多个间隔设置的连接桥21、触控引线连接线23、地线连接线22和电极连接线24。连接桥21位于待形成触控电极所在区域，触控引线连接线23位于待形成触控引线和待形成裂纹检测线的交叠区域，以及待形成触控引线和待形成隔离线的交叠区域，地线连接线22位于待形成地线和待形成裂纹检测线的交叠区域，电极连接线24位于待形成过渡连接区内，且位于待形成过渡连接区沿第二方向的两侧的第二子电极之间。形成第一金属层图案包括：在基板上沉积导电薄膜，在导电薄膜上涂覆一层光刻胶，采用掩膜版对光刻胶进行曝光并显影，在桥接层图案位置形成未曝光区域，保留有光刻胶，在其它位置形成完全曝光区域，光刻胶被去除，对完全曝光区域的导电薄膜进行刻蚀并剥离剩余的光刻胶，在基板上形成第一金属层图案。其中，导电薄膜可以采用金属材料，也可以采用透明导电材料，如氧化铟锡ITO、氧化铟锌IZO、碳纳米管或者石墨烯等。
(3)在第一金属层远离衬底一侧的表面，形成绝缘层30图案，如图8所示，绝缘层30包括多个过孔，过孔包括第一过孔、第二过孔、第三过孔和第四过孔，第一过孔设置在连接桥21的两端位置，第二过孔设置在地线连接线22的两端位置，第三过孔设置在触控引线连接线23的两端位置，第四过孔设置在电极连接线24的两端位置。绝缘层可以使用透明材料制备，以便于使得该触控面板可以用于集成触控的显示面板。
(4)在绝缘层30远离衬底一侧的表面，形成第二金属层图案，如图1和图2所示，第二金属层可以包括第一电极41、第二电极42、通孔43、环形裂纹检测线45a、环形隔离线44a、边缘裂纹检测线45c、边缘隔离线44c、过渡裂纹检测线45b、过渡隔离线44b、地线46以及触控引线47图案，第一电极41包括多个沿第一方向排列的第一子电极，沿第一方向上、相邻的两个第一子电极与一个连接桥21通过第一过孔电连接；第二电极42包括多个沿第二方向排列的第二子电极，且沿第二方向上、相邻两个第二子电极之间相 互连接，第一方向和第二方向交叉；通孔43贯穿第一子电极和第二子电极；环形裂纹检测线45a在衬底上的正投影为第一环形，环形隔离线44a在衬底上的正投影为第二环形，第一环形环绕通孔43，第二环形环绕第一环形，第一环形的外侧(即远离通孔的一侧)，位于第二环形的内侧(即靠近通孔的一侧)的范围之内。过渡裂纹检测线45b包括第一过渡裂纹检测线和第二过渡裂纹检测线，过渡隔离线44b包括第一过渡隔离线和第二过渡隔离线，边缘隔离线44c和边缘裂纹检测线45c设置在周边区，且边缘隔离线44c设置在显示区和边缘裂纹检测线45c之间，边缘隔离线44c包括两个第一连接端，边缘裂纹检测线45c包括两个第二连接端；环形隔离线包括两个第三连接端，环形裂纹检测线45a包括两个第四连接端；一个第一连接端和一个第三连接端之间通过第一过渡隔离线连接，另一个第一连接端和另一个第三连接端之间通过第二过渡隔离线连接，一个第二连接端和一个第四连接端之间通过第一过渡裂纹检测线连接，另一个第二连接端和另一个第四连接端之间通过第二过渡裂纹检测线连接。
本实施例中，地线46设置在边缘裂纹检测线45c和边缘隔离线44c之间，触控引线47设置在边缘隔离线44c和触控电极之间，沿第二方向上地线连接线22两侧的地线46与地线连接线22通过第二过孔电连接，沿第二方向上触控引线连接线23两侧的触控引线47与触控引线连接线23通过第三过孔电连接，沿第二方向上过渡连接区两侧的第二子电极与电极连接线24通过第四过孔电连接。
本实施例中，第一方向和第二方向均垂直于封装层的厚度方向。本公开实施例对第一方向和第二方向夹角的大小不做限定，例如二者可以垂直。
本实施例中，第一子电极和第二子电极均呈网格结构，且第一子电极和第二子电极的材料均为金属材料。由于金属材料的电阻低，导电性良好，灵敏度高，可以避免电信号在第一子电极和第二子电极中的传输延迟，提升触控效果。该网格结构中网格的形状可以为规则多边形或不规则多边形形状。
通过上述制备流程可以看出，本公开实施例所提供的触控显示面板，通过在裂纹检测线和触控电极之间设置隔离线，并通过隔离线的屏蔽作用，有效降低裂纹检测线的电压变化引起的触控电极的电压变化，即有效降低触控 噪声，提高了整个触控显示面板的触控性能。
虽然本实施例以环形裂纹检测线45a、环形隔离线44a、过渡裂纹检测线45b、过渡隔离线44b、边缘裂纹检测线45c、边缘隔离线44c、地线46以及触控引线47均位于第二金属层上为例描述了制备触控显示面板的过程，但实际实施时，环形裂纹检测线45a、环形隔离线44a、过渡裂纹检测线45b、过渡隔离线44b、边缘裂纹检测线45c、边缘隔离线44c、地线46以及触控引线47中的一条或多条也可以位于第一金属层上，本公开在此不做限定。
本公开实施例还提供了一种触控显示面板的制备方法，该触控显示面板包括基板以及位于基板上的触控显示区和周边区，触控显示区包括通孔区、环绕通孔区的通孔检测区以及位于通孔检测区和周边区之间的过渡连接区，如图9所示，本公开实施例触控显示面板的制备方法包括：
S1、在基板上形成第一金属层；
S2、在第一金属层远离基板的一侧形成绝缘层；
S3、在绝缘层远离第一金属层的一侧形成第二金属层，第一金属层和第二金属层中的任意一个或多个金属层包括环形裂纹检测线、环形隔离线、过渡裂纹检测线、过渡隔离线、边缘裂纹检测线和边缘隔离线，环形裂纹检测线和环形隔离线位于通孔检测区，过渡裂纹检测线和过渡隔离线位于过渡连接区，边缘裂纹检测线和边缘隔离线位于周边区，环形裂纹检测线通过过渡裂纹检测线与边缘裂纹检测线电连接，环形隔离线通过过渡隔离线与边缘隔离线电连接，边缘隔离线在基板上的正投影位于触控电极在基板上的正投影和边缘裂纹检测线在基板上的正投影之间；过渡隔离线在基板上的正投影位于过渡裂纹检测线在基板上的正投影和触控电极在基板上的正投影之间；环形裂纹检测线在基板上的正投影为第一环形，环形隔离线在基板上的正投影为第二环形，第一环形靠近第二环形的一侧位于第二环形靠近第一环形的一侧的范围之内。
在一种示例性实施例中，第一金属层和第二金属层中的其中一层包括多个连接桥，另一层包括第一电极、第二电极和通孔，第一电极包括多个沿第 一方向排列的第一子电极，相邻的第一子电极之间通过连接桥桥接；第二电极包括多个沿第二方向排列的第二子电极，且沿第二方向上、相邻两个第二子电极之间相互连接。
在一种示例性实施例中，第一金属层和第二金属层中的其中一层还包括地线连接线，另一层包括边缘裂纹检测线和地线，地线和地线连接线位于周边区，地线连接线在基板上的正投影与边缘裂纹检测线在基板上的正投影交叠，沿第二方向上地线连接线两侧的地线与地线连接线通过绝缘层上的过孔电连接。
在另一种示例性实施例中，第一金属层和第二金属层中的其中一层还包括地线，另一层包括边缘裂纹检测线，地线位于周边区，地线在基板上的正投影与边缘裂纹检测线在基板上的正投影交叠。
在一种示例性实施例中，第一金属层和第二金属层中的其中一层还包括触控引线连接线，另一层包括边缘隔离线、边缘裂纹检测线和触控引线，触控引线和触控引线连接线位于周边区，触控引线连接线在基板上的正投影与边缘裂纹检测线在基板上的正投影交叠，且触控引线连接线在基板上的正投影与边缘隔离线在基板上的正投影交叠，沿第二方向上触控引线连接线两侧的触控引线与触控引线连接线通过绝缘层上的过孔电连接。
在另一种示例性实施例中，第一金属层和第二金属层中的其中一层还包括触控引线，另一层包括边缘隔离线和边缘裂纹检测线，触控引线位于周边区，触控引线在基板上的正投影与边缘裂纹检测线在基板上的正投影交叠，且触控引线在基板上的正投影与边缘隔离线在基板上的正投影交叠，触控引线与触控电极通过绝缘层上的过孔电连接。
在一种示例性实施例中，第一金属层和第二金属层中的其中一层还包括电极连接线，电极连接线位于过渡连接区，沿第二方向上过渡连接区两侧的第二子电极与电极连接线通过绝缘层上的过孔电连接。
在一种示例性实施例中，触控显示面板还包括电极连接线，过渡裂纹检测线、过渡隔离线位于第一金属层和第二金属层中的其中一层，电极连接线位于第一金属层和第二金属层中的另一层，电极连接线位于过渡连接区，沿 第二方向上过渡连接区两侧的第二子电极通过电极连接线电连接。
本实施例提供的触控显示面板的制备方法，通过在裂纹检测线和触控电极之间设置隔离线，并通过隔离线的屏蔽作用，有效降低裂纹检测线的电压变化引起的触控电极的电压变化，即有效降低触控噪声，提高了整个触控显示面板的触控性能。
本公开实施例还提供了一种触控显示装置，包括前述实施例的触控显示面板。触控显示装置可以为：手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
在本公开实施例的描述中，术语“中部”、“上”、“下”、“前”、“后”、“竖直”、“水平”、“顶”、“底”“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。
在本公开实施例的描述中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本公开中的具体含义。
虽然本公开所揭露的实施方式如上，但所述的内容仅为便于理解本公开而采用的实施方式，并非用以限定本公开。任何本公开所属领域内的技术人员，在不脱离本公开所揭露的精神和范围的前提下，可以在实施的形式及细节上进行任何的修改与变化，但本公开的专利保护范围，仍须以所附的权利要求书所界定的范围为准。

Claims (20)

  1. 一种触控显示面板，包括基板以及位于所述基板上的触控显示区和周边区，所述触控显示区包括触控电极、贯穿所述触控电极的通孔、环绕所述通孔的通孔检测区以及位于所述通孔检测区和所述周边区之间的过渡连接区，其中：
    所述通孔检测区包括环形裂纹检测线和环形隔离线，所述过渡连接区包括过渡裂纹检测线和过渡隔离线，所述周边区包括边缘裂纹检测线和边缘隔离线，所述环形裂纹检测线通过所述过渡裂纹检测线与所述边缘裂纹检测线电连接，所述环形隔离线通过所述过渡隔离线与所述边缘隔离线电连接；
    所述边缘隔离线在所述基板上的正投影位于所述触控电极在所述基板上的正投影和所述边缘裂纹检测线在所述基板上的正投影之间；所述过渡隔离线在所述基板上的正投影位于所述过渡裂纹检测线在所述基板上的正投影和所述触控电极在所述基板上的正投影之间；所述环形裂纹检测线在基板上的正投影为第一环形，所述环形隔离线在基板上的正投影为第二环形，所述第一环形靠近所述第二环形的一侧位于所述第二环形靠近所述第一环形的一侧的范围之内。
  2. 根据权利要求1所述的触控显示面板，其中，所述触控显示面板包括基板、设置在基板上的第一金属层、设置在第一金属层远离基板一侧的绝缘层以及设置在绝缘层远离第一金属层一侧的第二金属层，其中：
    所述第一金属层和第二金属层中的其中一层包括多个连接桥，另一层包括所述触控电极和通孔，所述触控电极包括第一电极和第二电极，所述第一电极包括多个沿第一方向排列的第一子电极，相邻的第一子电极之间通过连接桥桥接；所述第二电极包括多个沿第二方向排列的第二子电极，且沿第二方向上、相邻两个第二子电极之间相互连接；所述通孔贯穿所述第一子电极和第二子电极。
  3. 根据权利要求2所述的触控显示面板，其中，所述环形裂纹检测线、所述环形隔离线、所述边缘裂纹检测线、所述边缘隔离线、所述过渡裂纹检 测线和所述过渡隔离线位于所述第一金属层和第二金属层中的一层或多层金属层上。
  4. 根据权利要求2所述的触控显示面板，其中，所述第一子电极包括多个第一凸起部以及位于所述多个第一凸起部之间的第一间隔部，所述第二子电极包括多个第二凸起部以及位于所述多个第二凸起部之间的第二间隔部，所述第一凸起部位于所述第二间隔部中，所述第二凸起部位于所述第一间隔部中。
  5. 根据权利要求2所述的触控显示面板，其中，所述第一金属层和第二金属层中的其中一层还包括地线连接线，另一层还包括地线，所述地线和所述地线连接线位于所述周边区，所述地线连接线在基板上的正投影与所述边缘裂纹检测线在所述基板上的正投影交叠，沿所述第二方向上所述地线连接线两侧的地线与所述地线连接线通过所述绝缘层上的过孔电连接。
  6. 根据权利要求2所述的触控显示面板，其中，所述第一金属层和第二金属层中的其中一层还包括地线，所述地线位于所述周边区，所述地线在基板上的正投影与所述边缘裂纹检测线在所述基板上的正投影交叠。
  7. 根据权利要求2所述的触控显示面板，其中，所述第一金属层和第二金属层中的其中一层还包括触控引线连接线，另一层还包括触控引线，所述触控引线和触控引线连接线位于所述周边区，所述触控引线连接线在所述基板上的正投影与所述边缘裂纹检测线在所述基板上的正投影交叠，且所述触控引线连接线在所述基板上的正投影与所述边缘隔离线在所述基板上的正投影交叠，沿所述第二方向上所述触控引线连接线两侧的触控引线与所述触控引线连接线通过所述绝缘层上的过孔电连接。
  8. 根据权利要求2所述的触控显示面板，其中，所述第一金属层和第二金属层中的其中一层还包括触控引线，所述触控引线位于所述周边区，所述触控引线在所述基板上的正投影与所述边缘裂纹检测线在所述基板上的正投影交叠，且所述触控引线在所述基板上的正投影与所述边缘隔离线在所述基板上的正投影交叠，所述触控引线与所述触控电极通过所述绝缘层上的过孔 电连接。
  9. 根据权利要求2所述的触控显示面板，其中，所述第一金属层和第二金属层中的其中一层还包括电极连接线，所述电极连接线位于所述过渡连接区，沿所述第二方向上所述过渡连接区两侧的所述第二子电极与所述电极连接线通过所述绝缘层上的过孔电连接。
  10. 根据权利要求2所述的触控显示面板，其中，所述触控显示面板还包括电极连接线，所述过渡裂纹检测线、过渡隔离线位于所述第一金属层和第二金属层中的其中一层，所述电极连接线位于所述第一金属层和第二金属层中的另一层，所述电极连接线位于所述过渡连接区，沿所述第二方向上所述过渡连接区两侧的所述第二子电极通过所述电极连接线电连接。
  11. 一种触控显示装置，包括权利要求1至10任一所述的触控显示面板。
  12. 一种触控显示面板的制备方法，所述触控显示面板包括基板以及位于所述基板上的触控显示区和周边区，所述触控显示区包括通孔区、环绕所述通孔区的通孔检测区以及位于所述通孔检测区和所述周边区之间的过渡连接区，所述制备方法包括：
    在基板上形成第一金属层；
    在所述第一金属层远离基板的一侧形成绝缘层；
    在所述绝缘层远离所述第一金属层的一侧形成第二金属层，所述第一金属层和第二金属层中的任意一个或多个金属层包括环形裂纹检测线、环形隔离线、过渡裂纹检测线、过渡隔离线、边缘裂纹检测线和边缘隔离线，所述环形裂纹检测线和环形隔离线位于所述通孔检测区，所述过渡裂纹检测线和过渡隔离线位于所述过渡连接区，所述边缘裂纹检测线和边缘隔离线位于所述周边区，所述环形裂纹检测线通过所述过渡裂纹检测线与所述边缘裂纹检测线电连接，所述环形隔离线通过所述过渡隔离线与所述边缘隔离线电连接，所述边缘隔离线在所述基板上的正投影位于所述触控电极在所述基板上的正投影和所述边缘裂纹检测线在所述基板上的正投影之间；所述过渡隔离线在所述基板上的正投影位于所述过渡裂纹检测线在所述基板上的正投影和所述 触控电极在所述基板上的正投影之间；所述环形裂纹检测线在基板上的正投影为第一环形，所述环形隔离线在基板上的正投影为第二环形，所述第一环形靠近所述第二环形的一侧位于所述第二环形靠近所述第一环形的一侧的范围之内。
  13. 根据权利要求12所述的制备方法，其中，所述第一金属层和第二金属层中的其中一层包括多个连接桥，另一层包括所述触控电极和通孔，所述触控电极包括第一电极和第二电极，所述第一电极包括多个沿第一方向排列的第一子电极，相邻的第一子电极之间通过连接桥桥接；所述第二电极包括多个沿第二方向排列的第二子电极，且沿第二方向上、相邻两个第二子电极之间相互连接；所述通孔贯穿所述第一子电极和第二子电极。
  14. 根据权利要求13所述的制备方法，其中，所述第一子电极包括多个第一凸起部以及位于所述多个第一凸起部之间的第一间隔部，所述第二子电极包括多个第二凸起部以及位于所述多个第二凸起部之间的第二间隔部，所述第一凸起部位于所述第二间隔部中，所述第二凸起部位于所述第一间隔部中。
  15. 根据权利要求13所述的制备方法，其中，所述第一金属层和第二金属层中的其中一层还包括地线连接线，另一层还包括地线，所述地线和所述地线连接线位于所述周边区，所述地线连接线在基板上的正投影与所述边缘裂纹检测线在所述基板上的正投影交叠，沿所述第二方向上所述地线连接线两侧的地线与所述地线连接线通过所述绝缘层上的过孔电连接。
  16. 根据权利要求13所述的制备方法，其中，所述第一金属层和第二金属层中的其中一层还包括电极连接线，所述电极连接线位于所述过渡连接区，沿所述第二方向上所述过渡连接区两侧的所述第二子电极与所述电极连接线通过所述绝缘层上的过孔电连接。
  17. 根据权利要求13所述的制备方法，其中，所述触控显示面板还包括电极连接线，所述过渡裂纹检测线、过渡隔离线位于所述第一金属层和第二金属层中的其中一层，所述电极连接线位于所述第一金属层和第二金属层中 的另一层，所述电极连接线位于所述过渡连接区，沿所述第二方向上所述过渡连接区两侧的所述第二子电极通过所述电极连接线电连接。
  18. 根据权利要求12所述的制备方法，其中，所述第一金属层和第二金属层中的其中一层还包括地线，所述地线位于所述周边区，所述地线在基板上的正投影与所述边缘裂纹检测线在所述基板上的正投影交叠。
  19. 根据权利要求12所述的制备方法，其中，所述第一金属层和第二金属层中的其中一层还包括触控引线连接线，另一层还包括触控引线，所述触控引线和触控引线连接线位于所述周边区，所述触控引线连接线在所述基板上的正投影与所述边缘裂纹检测线在所述基板上的正投影交叠，且所述触控引线连接线在所述基板上的正投影与所述边缘隔离线在所述基板上的正投影交叠，沿第二方向上所述触控引线连接线两侧的触控引线与所述触控引线连接线通过所述绝缘层上的过孔电连接。
  20. 根据权利要求12所述的制备方法，其中，所述第一金属层和第二金属层中的其中一层还包括触控引线，所述触控引线位于所述周边区，所述触控引线在所述基板上的正投影与所述边缘裂纹检测线在所述基板上的正投影交叠，且所述触控引线在所述基板上的正投影与所述边缘隔离线在所述基板上的正投影交叠，所述触控引线与所述触控电极通过所述绝缘层上的过孔电连接。
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