WO2023142048A1 - 触控显示面板、触控显示装置和触控层的制作方法 - Google Patents

触控显示面板、触控显示装置和触控层的制作方法 Download PDF

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Publication number
WO2023142048A1
WO2023142048A1 PCT/CN2022/075023 CN2022075023W WO2023142048A1 WO 2023142048 A1 WO2023142048 A1 WO 2023142048A1 CN 2022075023 W CN2022075023 W CN 2022075023W WO 2023142048 A1 WO2023142048 A1 WO 2023142048A1
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WIPO (PCT)
Prior art keywords
touch
conductive connection
electrode
area
display panel
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PCT/CN2022/075023
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English (en)
French (fr)
Inventor
王威
陈天赐
张毅
Original Assignee
京东方科技集团股份有限公司
成都京东方光电科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 京东方科技集团股份有限公司, 成都京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to PCT/CN2022/075023 priority Critical patent/WO2023142048A1/zh
Priority to CN202280000116.8A priority patent/CN116897332A/zh
Publication of WO2023142048A1 publication Critical patent/WO2023142048A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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

Definitions

  • the present disclosure relates to the field of display technology, in particular to a touch display panel, a touch display device and a method for manufacturing a touch layer.
  • a first aspect of the present disclosure provides a touch display panel, including a touch layer and a display function layer, the touch layer is located on the light emitting side of the display function layer, the touch layer includes a A plurality of first touch electrodes arranged along the second direction and a plurality of second touch electrodes extended along the second direction and arranged along the first direction, the first direction and the second direction intersect;
  • the plurality of first touch electrodes and the plurality of second touch electrodes are intersected and insulated;
  • the first touch electrode includes a plurality of first touch electrode blocks, each of the first touch electrode blocks includes at least one first hollow area and surrounds the first hollow area and is connected to the first touch electrode block. At least one second hollowed out area with a certain distance between the hollowed out areas, the area of the first hollowed out area is larger than the area of the second hollowed out area;
  • the touch layer further includes at least one first dummy electrode and at least one second dummy electrode, the first dummy electrode is located in the corresponding first hollowed-out area, and the second dummy electrode is located in the corresponding first dummy electrode.
  • the at least one first dummy electrode and the at least one second dummy electrode are insulated from the same layer as the first touch electrode.
  • the second touch electrode includes a plurality of second touch electrode blocks, each of the second touch electrode blocks includes at least one third hollow area and surrounds the third hollow area and is connected to the At least one fourth hollowed out area with a certain distance between the third hollowed out areas, the area of the third hollowed out area is larger than the area of the fourth hollowed out area;
  • the touch layer further includes at least one third dummy electrode and at least one fourth dummy electrode, the third dummy electrode is located in the corresponding third hollow area, and the fourth dummy electrode is located in the corresponding first dummy electrode.
  • the at least one third dummy electrode and the at least one fourth dummy electrode are insulated from the same layer as the second touch electrode.
  • the areas of the second hollowed out areas are the same, and the areas of the fourth hollowed out areas are the same.
  • the area of the first hollowed out area is the same as that of the third hollowed out area, and the area of the second hollowed out area is the same as that of the fourth hollowed out area.
  • the number of the second hollowed out area is the same as the number of the fourth hollowed out area.
  • the shape of the first hollow area, the second hollow area, the third hollow area and the fourth hollow area is approximately square.
  • the edge of the first touch electrode block includes a plurality of first protrusions
  • the edge of the second touch electrode block includes a plurality of second protrusions
  • the plurality of first protrusions and the plurality of second protrusions are nested with each other.
  • the edge of the first dummy electrode includes a plurality of third protrusions; the edge of the third dummy electrode includes a plurality of fourth protrusions.
  • first raised portion and the second raised portion have the same shape
  • third raised portion and the fourth raised portion have the same shape
  • first raised portion The shapes of the second protruding part, the third protruding part and the fourth protruding part include at least one of the following: convex, rectangular, triangular or trapezoidal.
  • the adjacent first touch electrode blocks in the same first touch electrode are electrically connected through the first conductive connection part, and the adjacent second touch electrode blocks in the same second touch electrode
  • the first touch electrode block, the second touch electrode block and the first conductive connection part are provided in the same layer and the same material, and the first conductive connection part and the An insulating layer is disposed between the second conductive connecting parts, and the second conductive connecting parts electrically connect adjacent second touch electrode blocks through via holes in the insulating layer.
  • the first touch electrode block, the second touch electrode block and the first conductive connection part all include a grid structure, which is composed of a plurality of metal grids.
  • the grid structure at the boundary between the first touch electrode block and the second touch electrode block includes a first cutout.
  • the second conductive connection part includes at least two conductive connection patterns arranged at intervals, each conductive connection pattern is used to connect adjacent second touch electrode blocks in the same second touch electrode, each The orthographic projection of the conductive connection pattern on the display panel and the orthographic projection of the grid structure of the first conductive connection part on the display panel have at least two intersection nodes.
  • the at least two conductive connection patterns arranged at intervals include at least one group of conductive connection patterns, each group of conductive connection patterns includes two conductive connection patterns, and the two conductive connection patterns in each group of conductive connection patterns are related to each group
  • the central line of the conductive connection pattern along the second direction is symmetrical.
  • the conductive connection pattern includes two metal grids and a conductive connection line connecting the two metal grids, and the conductive connection line includes a first part extending along a third direction and a second part extending along a fourth direction. part, the first part and the second part are connected.
  • the orthographic projection of the two metal grids of the conductive connection pattern on the display function layer overlaps with the orthographic projection of the two metal grids of the first conductive connection part on the display function layer .
  • the display panel includes:
  • each repeating unit includes four pixel units, each pixel unit includes four sub-pixels, and the sixteen sub-pixels of each repeating unit are arranged in RGBG pixel arrangement;
  • the first touch electrode block further includes at least one group of metal wires, each group of metal wires includes eight metal wires, and the eight metal wires are located in each of the four metal grids. Around the grid and connected to each of the four metal grids, four of the eight metal lines have second cutouts.
  • the metal wires with the second slit and the metal wires without the second slit are arranged alternately along the boundary extending direction of the metal grid.
  • the touch layer includes a plurality of touch units, each touch unit includes:
  • the touch unit covers corresponding M ⁇ M pixel units in the display panel, where M is an odd number.
  • the touch layer includes a plurality of touch modules, and each touch module includes four touch units arranged in a 2 ⁇ 2 matrix.
  • a second aspect of the present disclosure provides a touch display device, comprising the touch display panel according to any one of claims 1-21.
  • a third aspect of the present disclosure provides a method for manufacturing a touch layer, including:
  • a plurality of first touch electrodes extending along the first direction and arranged along the second direction are formed;
  • the first touch electrodes include a plurality of first touch electrode blocks, and each of the first touch electrode blocks includes at least A first hollowed out area and at least one second hollowed out area surrounding the first hollowed out area and having a certain distance from the first hollowed out area, the area of the first hollowed out area is larger than that of the second hollowed out area area;
  • the first dummy electrode is located in the corresponding first hollowed out area
  • the second dummy electrode is located in the corresponding second hollowed out area, so The at least one first dummy electrode and the at least one second dummy electrode are insulated from the same layer as the first touch electrode.
  • FIG. 1 is a schematic diagram of a touch layer provided by an embodiment of the present disclosure
  • FIG. 2 is an enlarged schematic diagram of a touch unit provided by an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of a touch electrode block provided by an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of a set of conductive connection patterns provided by an embodiment of the present disclosure.
  • Fig. 5 is a schematic diagram of a cross node formed by a group of conductive connection patterns shown in Fig. 4 and a first conductive connection part;
  • FIG. 6 is a schematic diagram of another set of conductive connection patterns provided by an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of an intersection node formed by another group of conductive connection patterns shown in FIG. 6 and the first conductive connection part;
  • Figure 8 is a schematic diagram of the repeating unit provided by the embodiment of the present disclosure.
  • Fig. 9 is a broken line schematic diagram of the repeating unit corresponding to Fig. 8.
  • FIG. 10 is a schematic diagram of a pixel unit corresponding to a touch unit provided by an embodiment of the present disclosure.
  • FIG. 11 is a schematic diagram of the integrity of the touch layer provided by the embodiment of the present disclosure.
  • FIG. 12 is a schematic diagram of a touch module provided by an embodiment of the present disclosure.
  • the mutual capacitive touch electrode structure includes driving electrodes (Tx) and sensing electrodes (Rx).
  • the driving electrodes and the touch electrodes form a mutual capacitance for realizing touch detection.
  • the driving electrodes are used for inputting excitation signals
  • the sensing electrodes are used for outputting sensing signals.
  • the induction signal is received from the laterally extending sensing electrode by inputting an excitation signal to the longitudinally extending driving electrode.
  • the touch area of a touch display device is usually rectangular, one of the driving electrodes and the sensing electrodes extends along the length of the rectangle, and the other extends along the width of the rectangle; the touch electrode extending along the length is longer and has a larger load .
  • the present disclosure provides a touch display device, including a touch layer and a display function layer, the touch layer is located on the light emitting side of the display function layer, and the touch layer includes a layer extending along a first direction and extending along a second direction A plurality of first touch electrodes arranged and a plurality of second touch electrodes extending along the second direction and arranged along the first direction, the first direction and the second direction intersect; the plurality of first touch electrodes The control electrode is intersected and insulated from the plurality of second touch electrodes; the first touch electrode includes a plurality of first touch electrode blocks, and each of the first touch electrode blocks includes at least one first hollow area and at least one second hollowed-out area surrounding the first hollowed-out area and having a certain distance from the first hollowed-out area, the area of the first hollowed-out area is larger than the area of the second hollowed-out area; the contact The control layer also includes at least one first dummy electrode and at least one second dummy electrode, the first d
  • the touch display device provided by the embodiments of the present disclosure can reduce the self-capacitance (parasitic capacitor) to improve the touch sensitivity of the touch layer.
  • self-capacitance parasitic capacitor
  • uniformity of the film layer can be improved so as to improve product yield.
  • the second touch electrode includes a plurality of second touch electrode blocks, each of the second touch electrode blocks includes at least one third hollow area and surrounds the third hollow area and is connected to the third hollow area. At least one fourth hollowed out area with a certain distance between the third hollowed out areas, the area of the third hollowed out area is larger than the area of the fourth hollowed out area;
  • the touch layer further includes at least one third dummy electrode and at least one fourth dummy electrode, the third dummy electrode is located in the corresponding third hollow area, and the fourth dummy electrode is located in the corresponding first dummy electrode.
  • the at least one third dummy electrode and the at least one fourth dummy electrode are insulated from the same layer as the second touch electrode.
  • the touch display device provided by the embodiments of the present disclosure can reduce the self-capacitance (parasitic capacitor) to improve the touch sensitivity of the touch layer.
  • the uniformity of the film layer can be improved so as to improve product yield.
  • FIG. 1 is a schematic diagram of a touch layer provided by an embodiment of the present disclosure.
  • the touch layer 10 includes a plurality of first touch electrodes 110 (T1-Tn ) and a plurality of second touch electrodes 120 (R1-Rn) extending along the second direction D2, the first direction D1 intersects with the second direction D2, for example, is orthogonal.
  • the length of the first touch electrode 110 in the first direction D1 is greater than the length of the second touch electrode 120 in the second direction, therefore, the first touch electrode 110 has a larger load than the second touch electrode.
  • the first touch electrodes 110 are driving electrodes
  • the second touch electrodes 120 are sensing electrodes.
  • the first touch electrodes 110 may be sensing electrodes
  • the second touch electrodes may be driving electrodes.
  • the first touch electrode 110 includes a plurality of first touch electrode blocks 111 sequentially connected along the first direction D1
  • the second touch electrode 120 includes a plurality of second touch electrode blocks 121 sequentially connected along the second direction D2.
  • both the first touch electrode block 111 and the second touch electrode block 121 are diamond-shaped.
  • the first touch electrode block and the second touch electrode block may be triangular or strip-shaped.
  • the first touch electrodes 110 and the second touch electrodes 120 are insulated to cross each other and form a plurality of touch units 20 at the intersections.
  • Each touch unit 20 includes half areas of two first touch electrode blocks 111 adjacent to each other and half areas of two second touch electrode blocks 121 adjacent to each other.
  • the area of each touch unit 20 is equivalent to the area where a human finger touches the touch panel. If the area of the touch unit is too large, it may cause touch blind spots on the panel, and if the area of the touch unit is too small, it may cause false touch signals.
  • FIG. 2 is an enlarged schematic diagram of a touch control unit provided by an embodiment of the present disclosure. As shown in FIG. 2 , each touch unit 20 includes half areas of two first touch electrode blocks 111 adjacent to each other and half areas of two second touch electrode blocks 121 adjacent to each other.
  • FIG. 3 is a schematic diagram of a touch electrode block provided by an embodiment of the present disclosure; wherein the touch electrode block shown in FIG. 3 may be the first touch electrode block 111 or the second touch electrode block 121 .
  • the first touch electrode block 111 includes at least one first hollow area, and at least one second hollow area is arranged around the at least one first hollow area. There is a certain distance between the at least one second hollow area and the at least one first hollow area. Wherein, each edge of the first hollow area has a raised portion.
  • the area of the first hollow area is larger than the area of the second hollow area.
  • the electrode area of the touch electrode is reduced, and the self-capacitance (parasitic capacitance) on the touch electrode is reduced, thereby reducing the load on the touch electrode.
  • the second hollow area the area of the hollow area is increased, and at the same time, blind touch spots caused by the large area of the first hollow area are prevented.
  • the hollowed out area may be provided only on the first touch electrode 110 without having to be provided on the second touch electrode 120 , which can simplify the process.
  • the touch layer 10 further includes at least one first dummy electrode 130 and at least one second dummy electrode 140 , and at least one second dummy electrode 140 surrounds the at least one first dummy electrode 130 set up.
  • the first dummy electrode 130 is located in the corresponding first hollow area
  • the second dummy electrode 140 is located in the corresponding second hollow area
  • the dummy electrode 140 is insulated from the same layer as the first touch electrode 110 .
  • “Same-layer arrangement” in the present disclosure means that two or more structures are formed by the same or different patterning processes of the same film layer, so the materials are the same.
  • the first dummy electrode 130 and the second dummy electrode 140 are in a floating state, that is, they are not electrically connected to other structures or receive any electrical signal.
  • the touch layer 10 further includes at least one third dummy electrode 150 and at least one fourth dummy electrode 160 , and the at least one fourth dummy electrode 160 is arranged around the at least one third dummy electrode 150 .
  • the third dummy electrode 150 is located in the corresponding third hollow area
  • the fourth dummy electrode 160 is located in the corresponding fourth hollow area
  • the third dummy electrode 150 and the at least one fourth The dummy electrode 160 is insulated from the second touch electrode 120 on the same layer.
  • the third dummy electrode 150 and the fourth dummy electrode 160 are in a floating state, that is, they are not electrically connected to other structures or do not receive any electrical signal.
  • the areas of the second hollowed out areas are the same, and the areas of the fourth hollowed out areas are the same.
  • the manufacturing process can be simplified, the uniformity of the film layer where the electrodes are located can be improved, and the process yield can be improved; similarly, the production can also be simplified by making the areas of the fourth hollowed out areas the same. process, improve the uniformity of the film layer where the electrode is located, and improve the process yield.
  • the area of the first hollowed out area is the same as that of the third hollowed out area, and the area of the second hollowed out area is the same as that of the fourth hollowed out area.
  • the above setting can simplify the manufacturing process, Improve the uniformity of the film layer where the electrode is located, and improve the process yield.
  • the number of the second hollowed out area is the same as the number of the fourth hollowed out area, and the above setting can improve the uniformity of the film layer where the electrode is located and improve the process yield.
  • the shapes of the first hollow area, the second hollow area, the third hollow area and the fourth hollow area are all square, and the above setting can improve the uniformity of the film layer where the electrode is located , Improve process yield.
  • the edge of the first touch electrode block includes a plurality of first protrusions; the edge of the second touch electrode block includes a plurality of second protrusions; the plurality of first touch electrodes
  • the protruding part and the plurality of second protruding parts are nested with each other; the shapes of the first protruding part and the second protruding parts are the same or different.
  • Increasing the area where the first touch electrode 110 and the second touch electrode 120 are coupled that is, increasing the side lengths of the first touch electrode 110 and the second touch electrode 120 opposite to each other, can provide the first touch electrode 110 and the mutual capacitance between the second touch electrode 120 to provide touch sensitivity.
  • the mutual capacitance can be effectively increased without increasing the self-capacitance (parasitic capacitance) of the touch unit, thereby improving the touch sensitivity.
  • the edge of the first touch electrode block 111 includes a plurality of first protrusions 1101 ; the edge of the second touch electrode block 121 includes a plurality of second protrusions 1201
  • the plurality of first protrusions 1101 and the plurality of second protrusions 1201 are nested with each other; the shapes of the first protrusions 1101 and the second protrusions 1201 are the same or different.
  • the edge of the first dummy electrode includes a plurality of third protrusions 1301 ; the edge of the third dummy electrode includes a plurality of fourth protrusions 1501 .
  • the first protrusion and the second protrusion have the same shape
  • the third protrusion and the fourth protrusion have the same shape
  • the shapes of the second raised part, the third raised part and the fourth raised part include at least one of the following: convex, rectangular, triangular or trapezoidal.
  • the shape of the first raised portion and the second raised portion are the same, and the shapes of the first raised portion and the second raised portion are polygonal, which can increase the size of the touch control unit under the same area. Therefore, the mutual capacitance is effectively increased without increasing the self-capacitance (parasitic capacitance) of the touch unit, thereby improving the touch sensitivity.
  • one of the driving electrodes and the sensing electrodes is connected by a bridge electrode, and the bridge electrodes are mostly connected by double bridges, each bridge has two channels, and the bridge electrodes and the driving electrodes on different layers have multiple intersection nodes, resulting in increased interconnection. Capacitance. Under strong light irradiation, the bridge electrodes are visible at a certain angle, resulting in the exposure of the metal layer where the bridge electrodes are located.
  • the adjacent first touch electrode blocks in the same first touch electrode are electrically connected through the first conductive connection part, and the adjacent second touch electrodes in the same second touch electrode
  • the blocks are electrically connected through the second conductive connection part, the first touch electrode block, the second touch electrode block and the first conductive connection part are arranged in the same layer and the same material, and the first conductive connection part
  • An insulating layer is disposed between the second conductive connection part, and the second conductive connection part electrically connects adjacent second touch electrode blocks through via holes in the insulating layer.
  • the touch unit usually includes an even number of pixel units, so that the integrity of the touch unit located at the edge of the display area is low, which affects the touch function.
  • Adjacent first touch electrode blocks are electrically connected through the first conductive connection portion to form a first touch electrode, and the first touch electrode is connected to a data line.
  • Adjacent second touch electrode blocks are electrically connected through the second conductive connection portion to form a second touch electrode, and the second touch electrode is connected to a data line.
  • the first touch electrodes can also be connected to multiple data lines, and the second touch electrodes can also be connected to multiple data lines.
  • the first touch electrodes and the second touch electrodes are connected to a touch integrated circuit (not shown) through data lines.
  • the touch integrated circuit is, for example, a touch chip, which is used to provide driving signals to the first touch electrodes 110 , receive sensing signals from the second touch electrodes 120 and process the sensing signals, so as to realize the touch sensing function.
  • the end of the data line connected to the touch integrated circuit can be arranged on the same side of the touch area.
  • the first touch electrode block, the second touch electrode block, and the first conductive connection part are arranged in the same layer and the same material, and the first touch electrode block, the second touch electrode block, and the second touch electrode block can be formed through one process.
  • the control electrode block and the first conductive connection part simplify the process.
  • the adjacent first touch electrode blocks 111 in the first direction D1 are electrically connected through the first conductive connection part (not shown in FIG. 2 ) to form a first touch electrode block extending along the first direction D1.
  • the electrodes 110 are connected to the adjacent second touch electrode blocks in the second direction D2 through the second conductive connection to form the second touch electrodes 120 extending along the second direction D2.
  • the first touch electrode block, the second touch electrode block and the first conductive connection part all include a grid structure, which is composed of a plurality of metal grids.
  • the first touch electrode, the second touch electrode and the first conductive connection part all include a grid structure, which is composed of a plurality of metal grids.
  • the first touch electrode, the second touch electrode and the first conductive connection part are all composed of a grid structure instead of a block structure, which can prevent the first touch electrode, the second touch
  • the control electrode and the first conductive connection part form a shield to the sub-pixels on the display panel, thereby affecting the display effect.
  • both the first touch electrode 110 and the second touch electrode 120 have a grid structure.
  • Adjacent first touch electrode blocks 111 are connected by first conductive connection parts to form an integrated network structure.
  • the adjacent second touch electrode blocks 121 are connected through the second conductive connection part, and the second conductive connection part electrically connects the adjacent second touch electrode blocks 121 through the via holes in the insulating layer.
  • the second conductive connection part includes at least two conductive connection patterns arranged at intervals, each conductive connection pattern is used to connect adjacent second touch electrode blocks in the same second touch electrode,
  • Each orthographic projection of the conductive connection pattern on the display function layer and the orthographic projection of the grid-like structure of the first conductive connection part on the display function layer have at least two intersection nodes.
  • the second conductive connection part By setting the second conductive connection part to include at least two conductive connection patterns arranged at intervals, the electrical connection of adjacent second touch electrode blocks in the same second touch electrode can be realized.
  • the at least two conductive connection patterns arranged at intervals include at least one group of conductive connection patterns, each group of conductive connection patterns includes two conductive connection patterns, and the two conductive connection patterns in each group of conductive connection patterns are about Each group of conductive connection patterns is symmetrical to the center line along the second direction.
  • the embodiment of the present disclosure simplifies the design of the second conductive connection part and reduces the process complexity by making the two conductive connection patterns in each group of conductive connection patterns symmetrical with respect to the center line of each group of conductive connection patterns along the second direction.
  • the conductive connection pattern includes two metal grids and a conductive connection line connecting the two metal grids, and the conductive connection line includes a first part extending along the third direction and a part extending along the fourth direction.
  • the second part, the first part and the second part are connected, the third direction intersects the fourth direction, the angle between the third direction and the first direction is an acute angle, and the An included angle between the fourth direction and the second direction is an acute angle.
  • the grid structure in the embodiments of the present disclosure is a quadrilateral grid as an example, but it is not limited thereto, for example, it may also be a hexagonal grid.
  • the orthographic projection of the two metal grids of the conductive connection pattern on the display function layer is the same as the orthographic projection of the two metal grids of the first conductive connection part on the display function layer.
  • the projections overlap.
  • the second conductive connection part will be described with reference to FIG. 2 , FIG. 4 , and FIG. 5 .
  • FIG. 4 is a schematic diagram of a set of conductive connection patterns provided by an embodiment of the present disclosure, corresponding to the second conductive connection portion 122 in FIG. 2
  • FIG. 4 is an enlarged schematic diagram of the second conductive connection portion shown in FIG. 2
  • the second conductive connection part includes two conductive connection patterns.
  • Each conductive connection pattern includes two metal grids and a conductive connection line connecting the two metal grids.
  • One of the conductive connection patterns connects the two metal grids on both sides through the first conductive connection line L1, and the other conductive connection pattern connects the two metal grids on both sides through the second conductive connection line L2.
  • FIG. 5 is a schematic diagram of intersection nodes formed by a group of conductive connection patterns shown in FIG. 4 and the first conductive connection portion.
  • the first conductive connection part is provided with a metal grid at a position corresponding to the two metal grids included in each conductive connection pattern, and the position is a double-layer metal grid; and the first conductive connection part is at a position corresponding to the first At the position of the conductive connecting line L1 and the second conductive connecting line L2, no metal wiring is provided, and this position is a single-layer wiring.
  • the second conductive connection part and the first conductive connection part form four intersection nodes, which are respectively intersection nodes N1, N2, N3 and N4, so that the mutual capacitance value of the entire touch unit when there is no finger touch is 0.608pF, the mutual capacitance value when touched by a finger is 0.545pF, and the capacitance change value detected by the touch circuit is 0.063pF, which can maintain touch sensitivity while reducing cross nodes.
  • the lengths of the first conductive connection line L1 and the second conductive connection line L2 are both very small, which also reduces the exposed area of the first conductive connection line L1 and the second conductive connection line L2, and reduces the size of the second conductive connection portion. visible risks.
  • FIG. 6 is a schematic diagram of another set of conductive connection patterns provided by an embodiment of the present disclosure, corresponding to the second conductive connection portion 122 in FIG. 2
  • FIG. 6 is an enlarged schematic diagram of the second conductive connection portion shown in FIG. 2
  • the second conductive connection part includes two conductive connection patterns.
  • Each conductive connection pattern includes two metal grids and a conductive connection line connecting the two metal grids.
  • One of the conductive connection patterns connects the two metal grids on both sides through the third conductive connection line L3, and the other conductive connection pattern connects the two metal grids on both sides through the fourth conductive connection line L4.
  • FIG. 7 is a schematic diagram of an intersection node formed by another set of conductive connection patterns shown in FIG. 6 and the first conductive connection portion.
  • FIG. 6 The difference between FIG. 6 and FIG. 4 is that the lengths of the third conductive connection line and the fourth conductive connection line are slightly increased.
  • the second conductive connection part and the first conductive connection part form 8 intersection nodes, namely N1 to N8, so that the mutual capacitance value of the entire touch unit is 0.756pF when there is no finger touch, and the finger touch
  • the capacitance change value detected by the touch circuit is 0.062pF, which can maintain the touch sensitivity under the premise of reducing cross nodes.
  • the lengths of the third conductive connection line L3 and the fourth conductive connection line L4 are very small, which also reduces the exposed area of the first conductive connection pattern L1 and the fourth conductive connection pattern L4, and reduces the size of the second conductive connection portion. visible risks.
  • the grid structure at the boundary between the first touch electrode block and the second touch electrode block includes a first cutout, and the grid structure includes a plurality of metal grids.
  • one metal grid corresponds to one sub-pixel. In other embodiments, one metal grid can correspond to multiple sub-pixels.
  • the metal grid includes a plurality of metal wires.
  • the first touch electrode block 111 and the second touch electrode block 121 are connected at the boundary.
  • the metal wires between 121 are broken to form cutouts.
  • the metal line between the first touch electrode block 111 and the second touch electrode block 121 has a first cutout C1 .
  • the display panel includes: a plurality of repeating units, each repeating unit includes four pixel units, each pixel unit includes four sub-pixels, and the sixteen sub-pixels of each repeating unit are arranged in RGBG pixels arrangement, the sub-pixels at the corners of adjacent repeating units are shared; the four metal grids in the plurality of metal grids included in the first touch electrode block are the same as the sub-pixels at the four corners of the corresponding repeating units The sub-pixels are in one-to-one correspondence, and the four metal lines of each of the four metal grids do not include cutouts.
  • the GBGR at the top corner is guaranteed to be uninterrupted.
  • This kind of disconnection scheme is more uniform, and the disconnection around the RGB pixels in the entire surface is kept uniform, so as not to affect the color cast.
  • FIG. 8 is a schematic diagram of repeating units provided by embodiments of the present disclosure.
  • the display panel includes multiple repeating units as shown in FIG. 8 , each repeating unit includes 4 pixel units, and the 4 pixel units include 2 pixel units a and 2 pixel units b.
  • the pixel unit a includes BGGR, and the pixel unit b includes RGGB.
  • FIG. 9 is a broken-line schematic diagram of the repeating unit corresponding to FIG. 8 , and the sub-pixels at the four corners of the repeating unit are respectively BGRG.
  • Four metal grids among the plurality of metal grids included in the first touch electrode block 111 correspond one-to-one to the sub-pixels BGRG at the four corners of the corresponding repeating unit.
  • the metal lines of the four metal grids corresponding to the sub-pixels BGRG at the four corners of the repeating unit are not broken and have no cutouts.
  • the B pixels at the corners of adjacent repeating units are shared.
  • the first touch electrode block further includes at least one group of metal wires, each group of metal wires includes eight metal wires, and the eight metal wires are located in each of the four metal grids. Surrounding the metal grid and connected to each of the four metal grids, four of the eight metal lines have second cutouts.
  • the GBGR at the top corner is guaranteed to be uninterrupted.
  • This kind of disconnection scheme is more uniform, and the disconnection around the RGB pixels in the entire surface is kept uniform, so as not to affect the color cast.
  • the metal lines with the second slit and the metal lines without the second slit are arranged alternately along the extending direction of the boundary of the metal grid.
  • the broken line is more uniform, and the RGB pixels around the entire surface are maintained.
  • the line breaks are uniform, thus not affecting the color cast.
  • the touch layer includes a plurality of touch units, and each touch unit includes: at least a part of each of the two first touch electrode blocks connected at the intersection and two first touch electrode blocks connected at the intersection. At least a part of each of the second touch electrode blocks; wherein, the touch unit covers corresponding M ⁇ M pixel units in the display panel, where M is an odd number.
  • the touch unit By making the touch unit cover the pixel units in odd rows and odd columns in the display panel, the integrity of the touch unit at the edge of the touch layer can be ensured, and edge touch performance can be improved.
  • FIG. 10 is a schematic diagram of a pixel unit corresponding to a touch unit provided in an embodiment of the present disclosure. As shown in FIG. 10 , the touch unit covers corresponding pixel units in 67 rows and 67 columns in the display panel. At this time, the size d1 of the touch unit is 4314.8 ⁇ m, the integrity of the touch unit at the edge of the touch layer is relatively high.
  • touch unit adopts pixel units in odd rows and columns or in even rows and columns depends on the size of the panel.
  • FIG. 11 is a schematic diagram of the integrity of the touch layer provided by the embodiment of the present disclosure. As shown in FIG. 11 , the integrity of the touch unit at the upper left corner of the touch layer reaches 65%, which is the same as that of the touch unit at the upper left corner. The integrity of the touch unit adjacent to the upper edge is 97%, the integrity of the touch unit adjacent to the touch unit on the upper edge is 100%, and the touch unit adjacent to the upper left corner is located on the left edge. The integrity of the touch unit is 102%, and the integrity of the touch unit adjacent to the touch unit on the left edge reaches 104%.
  • the touch layer includes a plurality of touch modules, and each touch module includes four touch units arranged in a 2 ⁇ 2 matrix.
  • each touch module by making each touch module include four touch units, it is possible to ensure that the entire display panel is composed of even-numbered columns of pixel units, thereby ensuring the symmetry of the display panel.
  • touch layer of the display panel When forming the touch layer of the display panel provided by the embodiments of the present disclosure, four touch units need to be used as a touch module to realize splicing of the entire touch layer, which can ensure the integrity of the edge of the touch layer.
  • FIG. 12 is a schematic diagram of a touch module provided by an embodiment of the present disclosure. As shown in FIG. 12 , the size d2 of the touch module is 8629.6 ⁇ m.
  • An embodiment of the present disclosure also provides a touch display device, including the above touch display panel.
  • the touch layer provided by the embodiments of the present disclosure can reduce the self-capacitance (parasitic capacitance) on the first touch electrode block by setting at least one first hollow area and at least one second hollow area on the first touch electrode block. ) to improve the touch sensitivity of the touch layer.
  • Embodiments of the present disclosure also provide a method for manufacturing a touch layer, including:
  • a plurality of first touch electrodes extending along the first direction and arranged along the second direction are formed;
  • the first touch electrodes include a plurality of first touch electrode blocks, and each of the first touch electrode blocks includes at least A first hollowed out area and at least one second hollowed out area surrounding the first hollowed out area and having a certain distance from the first hollowed out area, the area of the first hollowed out area is larger than that of the second hollowed out area area;
  • the first dummy electrode is located in the corresponding first hollowed out area
  • the second dummy electrode is located in the corresponding second hollowed out area, so The at least one first dummy electrode and the at least one second dummy electrode are insulated from the same layer as the first touch electrode.
  • the manufacturing method of the touch layer provided by the embodiments of the present disclosure can reduce the self-capacitance on the first touch electrode block by setting at least one first hollow area and at least one second hollow area on the first touch electrode block. (parasitic capacitance) to improve the touch sensitivity of the touch layer.
  • the touch display device includes but not limited to: a radio frequency unit, a network module, an audio output unit, an input unit, a sensor, a display unit, a user input unit, an interface unit, a memory, a processor, and a power supply.
  • a radio frequency unit a radio frequency unit
  • a network module an audio output unit
  • an input unit a sensor
  • a display unit a user input unit
  • an interface unit a memory
  • a processor and a power supply.
  • touch display devices include but are not limited to monitors, mobile phones, tablet computers, televisions, wearable electronic devices, navigation display devices, and the like.
  • the touch display device can be any product or component with a display function such as a liquid crystal TV, a liquid crystal display, a digital photo frame, a mobile phone, a tablet computer, etc., wherein the touch display device also includes a flexible circuit board, a printed circuit board and backplane.
  • a display function such as a liquid crystal TV, a liquid crystal display, a digital photo frame, a mobile phone, a tablet computer, etc.
  • the touch display device also includes a flexible circuit board, a printed circuit board and backplane.
  • each embodiment in this specification is described in a progressive manner, the same and similar parts of each embodiment can be referred to each other, and each embodiment focuses on the differences from other embodiments.
  • the description is relatively simple, and for related parts, please refer to the description of the product embodiment.

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Abstract

本公开提供了一种触控显示面板，包括触控层和显示功能层，所述触控层包括多个第一触控电极和多个第二触控电极；所述第一触控电极包括多个第一触控电极块，每个所述第一触控电极块包括至少一个第一镂空区和至少一个第二镂空区，所述第一镂空区的面积大于所述第二镂空区的面积；所述触控层还包括至少一个第一虚设电极和至少一个第二虚设电极，所述第一虚设电极位于对应的所述第一镂空区内，所述第二虚设电极位于对应的所述第二镂空区内。

Description

触控显示面板、触控显示装置和触控层的制作方法 技术领域
本公开涉及显示技术领域，特别是指一种触控显示面板、触控显示装置和触控层的制作方法。
背景技术
相关技术中，由于手机尺寸较长，而驱动电极(Tx)沿竖向排列，则第一个驱动电极和最后一个驱动电极上具有压降，进而使得触控电极结构的第一个触控单元与最后一个触控单元存在压降，影响触控效果。另外，连接相邻感应电极(Rx)的桥电极在强光下会出现可视问题。
发明内容
本公开的第一方面提供一种触控显示面板，包括触控层和显示功能层，所述触控层位于所述显示功能层的出光侧，所述触控层包括沿第一方向延伸且延第二方向排列的多个第一触控电极和沿第二方向延伸且延第一方向排列的多个第二触控电极，所述第一方向和所述第二方向相交；
所述多个第一触控电极与所述多个第二触控电极交叉绝缘设置；
其中，所述第一触控电极包括多个第一触控电极块，每个所述第一触控电极块包括至少一个第一镂空区和围绕所述第一镂空区且与所述第一镂空区之间具有一定间距的至少一个第二镂空区，所述第一镂空区的面积大于所述第二镂空区的面积；
所述触控层还包括至少一个第一虚设电极和至少一个第二虚设电极，所述第一虚设电极位于对应的所述第一镂空区内，所述第二虚设电极位于对应的所述第二镂空区内，所述至少一个第一虚设电极和所述至少一个第二虚设电极与所述第一触控电极同层绝缘设置。
可选地，所述第二触控电极包括多个第二触控电极块，每个所述第二触控电极块包括至少一个第三镂空区和围绕所述第三镂空区且与所述第三镂空 区之间具有一定间距的至少一个第四镂空区，所述第三镂空区的面积大于所述第四镂空区的面积；
所述触控层还包括至少一个第三虚设电极和至少一个第四虚设电极，所述第三虚设电极位于对应的所述第三镂空区内，所述第四虚设电极位于对应的所述第四镂空区内，所述至少一个第三虚设电极和所述至少一个第四虚设电极与所述第二触控电极同层绝缘设置。
可选地，所述各第二镂空区的面积相同，所述各第四镂空区的面积相同。
可选地，所述第一镂空区与所述第三镂空区的面积相同，所述第二镂空区与所述第四镂空区的面积相同。
可选地，所述第二镂空区的数量与所述第四镂空区的数量相同。
可选地，所述第一镂空区、所述第二镂空区、所述第三镂空区和所述第四镂空区的形状近似正方形。
可选地，所述第一触控电极块的边缘包括多个第一凸起部；
所述第二触控电极块的边缘包括多个第二凸起部；
所述多个第一凸起部和所述多个第二凸起部彼此嵌套。
可选地，所述第一虚设电极的边缘包括多个第三凸起部；所述第三虚设电极的边缘包括多个第四凸起部。
可选地，所述第一凸起部和所述第二凸起部的形状相同，所述第三凸起部和所述第四凸起部的形状相同，所述第一凸起部、所述第二凸起部、所述第三凸起部和所述第四凸起部的形状包括以下至少一项：凸字形、矩形、三角形或梯形。
可选地，同一个第一触控电极中相邻的第一触控电极块之间通过第一导电连接部电连接，同一个第二触控电极中相邻的第二触控电极块之间通过第二导电连接部电连接，所述第一触控电极块、所述第二触控电极块和所述第一导电连接部同层同材料设置，所述第一导电连接部与所述第二导电连接部之间设置有绝缘层，所述第二导电连接部通过所述绝缘层中的过孔将相邻的第二触控电极块电连接。
可选地，所述第一触控电极块、所述第二触控电极块和所述第一导电连 接部均包括网格状结构，由多个金属网格组成。
可选地，所述第一触控电极块与所述第二触控电极块在分界处的网格状结构包括第一切口。
可选地，所述第二导电连接部包括至少两个间隔设置的导电连接图形，每个导电连接图形用于连接同一个第二触控电极中相邻的第二触控电极块，每个所述导电连接图形在所述显示面板上的正投影与所述第一导电连接部的网格状结构在所述显示面板上的正投影具有至少两个交叉节点。
可选地，所述至少两个间隔设置的导电连接图形包括至少一组导电连接图形，每组导电连接图形包括两个导电连接图形，每组导电连接图形中的两个导电连接图形关于每组导电连接图形的沿第二方向的中心线对称。
可选地，所述导电连接图形包括两个金属网格以及连接两个金属网格的导电连接线，所述导电连接线包括沿第三方向延伸的第一部分和沿第四方向延伸的第二部分，所述第一部分和所述第二部分连接。
可选地，所述导电连接图形的两个金属网格在所述显示功能层上的正投影与所述第一导电连接部的两个金属网格在所述显示功能层上的正投影重叠。
可选地，所述显示面板包括：
多个重复单元，每个重复单元包括四个像素单元，每个像素单元包括四个子像素，每个重复单元的十六个子像素以RGBG的像素排列方式排列；
所述第一触控电极块包括的多个金属网格中的四个金属网格与相应的重复单元的四个顶角处的子像素一一对应，所述四个金属网格中的每个金属网格的四条金属线不包括切口。
可选地，所述第一触控电极块还包括至少一组金属线，每组所述金属线包括八条金属线，所述八条金属线位于所述四个金属网格中的每个金属网格的周围，且与所述四个金属网格中的每个金属网格连接，所述八条金属线中的四条金属线具有第二切口。
可选地，所述八条金属线中，具有第二切口的金属线和不具有第二切口的金属线沿所述金属网格的边界延伸方向交替设置。
可选地，所述触控层包括多个触控单元，每个触控单元包括：
在交叉处连接的两个第一触控电极块的各至少一部分以及在交叉处连接的两个第二触控电极块的各至少一部分；
其中，所述触控单元覆盖显示面板中对应的M×M个像素单元，其中M为奇数。
可选地，所述触控层包括多个触控模块，每个触控模块包括以2×2矩阵方式排列的四个触控单元。
本公开的第二方面提供一种触控显示装置，包括如权利要求1-21任一项所述的触控显示面板。
本公开的第三方面提供一种触控层的制作方法，包括：
形成沿第一方向延伸且延第二方向排列的多个第一触控电极；所述第一触控电极包括多个第一触控电极块，每个所述第一触控电极块包括至少一个第一镂空区和围绕所述第一镂空区且与所述第一镂空区之间具有一定间距的至少一个第二镂空区，所述第一镂空区的面积大于所述第二镂空区的面积；
形成沿第二方向延伸且延第一方向排列的多个第二触控电极，所述第一方向和所述第二方向相交，所述多个第一触控电极与所述多个第二触控电极交叉绝缘设置；
形成至少一个第一虚设电极和至少一个第二虚设电极，所述第一虚设电极位于对应的所述第一镂空区内，所述第二虚设电极位于对应的所述第二镂空区内，所述至少一个第一虚设电极和所述至少一个第二虚设电极与所述第一触控电极同层绝缘设置。
附图说明
图1为本公开实施例提供的触控层示意图；
图2为本公开实施例提供的一种触控单元的放大示意图；
图3为本公开实施例提供的一种触控电极块的示意图；
图4为本公开实施例提供的一组导电连接图形的示意图；
图5为图4所示的一组导电连接图形与第一导电连接部形成的交叉节点示意图；
图6为本公开实施例提供的另一组导电连接图形的示意图；
图7为图6所示的另一组导电连接图形与第一导电连接部形成的交叉节点示意图；
图8为本公开实施例提供的重复单元的示意图；
图9为与图8对应的重复单元的断线示意图；
图10为本公开实施例提供的触控单元对应的像素单元示意图；
图11为本公开实施例提供的触控层的完整度示意图；
图12为本公开实施例提供的触控模块示意图。
附图标记
10 触控层
20 触控单元
110 第一触控电极
120 第二触控电极
111 第一触控电极块
121 第二触控电极块
122 第二导电连接部
130 第一虚设电极
140 第二虚设电极
150 第三虚设电极
160 第四虚设电极
1101 第一凸起部
1201 第二凸起部
1301 第三凸起部
1501 第四凸起部
L1 第一导电连接线
L2 第二导电连接线
L3 第三导电连接线
L4 第四导电连接线
C1 第一切口
C2 第二切口
具体实施方式
为使本公开的实施例要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。
互容式触控电极结构包括驱动电极(Tx)和感应电极(Rx)。驱动电极和触控电极形成用于实现触控检测的互电容。驱动电极用于输入激励信号，感应电极用于输出感应信号。通过向纵向延伸的驱动电极输入激励信号，从横向延伸的感应电极接收感应信号。当手指触摸电容屏时，影响触摸点附近的驱动电极和感应电极之间的耦合，改变了两个电极之间的电容量。根据触摸屏二维电容变化量数据，可以计算出触摸点的坐标。触控显示装置的触控区通常为长方形，驱动电极和感应电极中的一个沿长方形的长度方向延伸，另一个沿长方形的宽度方向延伸；沿长度方向延伸的触控电极较长，负载较大。
本公开提供一种触控显示装置，包括触控层和显示功能层，所述触控层位于所述显示功能层的出光侧，所述触控层包括沿第一方向延伸且延第二方向排列的多个第一触控电极和沿第二方向延伸且延第一方向排列的多个第二触控电极，所述第一方向和所述第二方向相交；所述多个第一触控电极与所述多个第二触控电极交叉绝缘设置；所述第一触控电极包括多个第一触控电极块，每个所述第一触控电极块包括至少一个第一镂空区和围绕所述第一镂空区且与所述第一镂空区之间具有一定间距的至少一个第二镂空区，所述第一镂空区的面积大于所述第二镂空区的面积；所述触控层还包括至少一个第一虚设电极和至少一个第二虚设电极，所述第一虚设电极位于对应的所述第一镂空区内，所述第二虚设电极位于对应的所述第二镂空区内，所述至少一个第一虚设电极和所述至少一个第二虚设电极与所述第一触控电极同层绝缘设置。
本公开实施例提供的触控显示装置通过在所述第一触控电极块上设置至少一个第一镂空区和至少一个第二镂空区，能够降低第一触控电极块上的自 电容(寄生电容)，提高触控层的触控灵敏度。此外，通过在第一镂空区和至少一个第二镂空区对应的位置设置虚设电极，可以提供膜层的均一性从而提高产品良率。
在一些示例中，所述第二触控电极包括多个第二触控电极块，每个所述第二触控电极块包括至少一个第三镂空区和围绕所述第三镂空区且与所述第三镂空区之间具有一定间距的至少一个第四镂空区，所述第三镂空区的面积大于所述第四镂空区的面积；
所述触控层还包括至少一个第三虚设电极和至少一个第四虚设电极，所述第三虚设电极位于对应的所述第三镂空区内，所述第四虚设电极位于对应的所述第四镂空区内，所述至少一个第三虚设电极和所述至少一个第四虚设电极与所述第二触控电极同层绝缘设置。
本公开实施例提供的触控显示装置通过在所述第二触控电极块上设置至少一个第三镂空区和至少一个第四镂空区，能够降低第二触控电极块上的自电容(寄生电容)，提高触控层的触控灵敏度。此外，通过在第三镂空区和至少一个第四镂空区对应的位置设置虚设电极，可以提供膜层的均一性从而提高产品良率。
图1为本公开实施例提供的触控层示意图，如图1所示，如图1所示，触控层10包括沿第一方向D1延伸的多条第一触控电极110(T1-Tn)和沿第二方向D2延伸的多条第二触控电极120(R1-Rn)，第一方向D1与第二方向D2交叉，例如正交。第一触控电极110在第一方向D1的长度大于第二触控电极120在第二方向的长度，因此，第一触控电极110比第二触控电极具有更大的负载。
作为示例，第一触控电极110为驱动电极，第二触控电极120为感应电极。在其他示例中，第一触控电极110可以是感应电极，第二触控电极可以为驱动电极。
第一触控电极110包括沿第一方向D1依次连接的多个第一触控电极块111，第二触控电极120包括沿第二方向D2依次连接的多个第二触控电极块121。如图1所示，第一触控电极块111和第二触控电极块121均为菱形。在其它示例中，第一触控电极块和第二触控电极块可以为三角形或条形。
第一触控电极110和第二触控电极120彼此绝缘交叉且在交叉处形成多个触控单元20。每个触控单元20包括彼此邻接的两个第一触控电极块111的各一半区域以及彼此邻接的两个第二触控电极块121的各一半区域。每个触控单元20的面积与人的手指与触控面板接触的面积相当，该触控单元的面积过大可能造成面板上出现触控盲点，过小则会造成误触信号。
图2为本公开实施例提供的一种触控单元的放大示意图。如图2所示，每个触控单元20包括彼此邻接的两个第一触控电极块111的各一半区域以及彼此邻接的两个第二触控电极块121的各一半区域。
图3为本公开实施例提供的一种触控电极块的示意图；其中图3所示的触控电极块可为第一触控电极块111，也可为第二触控电极块121。
如图2和图3所示，第一触控电极块111包括至少一个第一镂空区，所述至少一个第一镂空区的周围设置有至少一个第二镂空区。所述至少一个第二镂空区与所述至少一个第一镂空区之间具有一定间距。其中，第一镂空区的每个边缘具有凸起部分。
所述第一镂空区的面积大于所述第二镂空区的面积。通过设置镂空区降低了触控电极的电极面积，降低了触控电极上的自电容(寄生电容)，从而降低触控电极上的负载。通过设置第二镂空区，增大了镂空区的面积，同时也防止由于第一镂空区面积太大导致的触控盲点。
在一些示例中，可以仅在第一触控电极110上设置镂空区，而不必在第二触控电极120上设置镂空区，这样可以简化工艺。
另外，如图2和图3所示，触控层10还包括至少一个第一虚设电极130和至少一个第二虚设电极140，至少一个第二虚设电极140围绕所述至少一个第一虚设电极130设置。所述第一虚设电极130位于对应的所述第一镂空区内，所述第二虚设电极140位于对应的所述第二镂空区内，所述第一虚设电极130和所述至少一个第二虚设电极140与所述第一触控电极110同层绝缘设置。
本公开中的“同层设置”是指两个或多个结构由同意膜层经相同或不同的构图工艺形成，因此材料相同。
第一虚设电极130和第二虚设电极140为浮置状态，也即不与其它结构 电连接或者不接收任何电信号。
另外，如图2所示，触控层10还包括至少一个第三虚设电极150和至少一个第四虚设电极160，至少一个第四虚设电极160围绕所述至少一个第三虚设电极150设置。所述第三虚设电极150位于对应的所述第三镂空区内，所述第四虚设电极160位于对应的所述第四镂空区内，所述第三虚设电极150和所述至少一个第四虚设电极160与所述第二触控电极120同层绝缘设置.
第三虚设电极150和第四虚设电极160为浮置状态，也即不与其它结构电连接或者不接收任何电信号。在一些实施例中，所述各第二镂空区的面积相同，所述各第四镂空区的面积相同。
通过使各第二镂空区的面积相同，能够简化制作工艺，提高电极所在膜层的均一性，提高工艺良率；同样地，通过使所述各第四镂空区的面积相同，也能够简化制作工艺，提高电极所在膜层的均一性，提高工艺良率。
在一些实施例中，所述第一镂空区与所述第三镂空区的面积相同，所述第二镂空区与所述第四镂空区的面积相同，同样地，上述设置能够简化制作工艺，提高电极所在膜层的均一性，提高工艺良率。
在一些实施例中，所述第二镂空区的数量与所述第四镂空区的数量相同，上述设置能够提高电极所在膜层的均一性，提高工艺良率。
在一些实施例中，所述第一镂空区、所述第二镂空区、所述第三镂空区和所述第四镂空区的形状均为正方形，上述设置能够提高电极所在膜层的均一性，提高工艺良率。
需要说明的是，镂空区的面积相同是指大致相同，在工艺误差允许的范围内。
在一些实施例中，所述第一触控电极块的边缘包括多个第一凸起部；所述第二触控电极块的边缘包括多个第二凸起部；所述多个第一凸起部和所述多个第二凸起部彼此嵌套；所述第一凸起部与所述第二凸起部的形状相同或不同。
增大第一触控电极110和第二触控电极120耦合的区域，也即增大第一触控电极110和第二触控电极120彼此相对的边长，可以提供第一触控电极110和第二触控电极120之间的互电容，从而提供触控灵敏度。
通过使触控单元的第一触控电极的所述多个第一凸起部和第二触控电极的所述多个第二凸起部彼此嵌套形成互电容，可以在同等面积下提高触控单元的周长，因此在不增大触控单元的自电容(寄生电容)的情形下有效提高互电容量，从而提高触控灵敏度。
如图2和图3所示，所述第一触控电极块111的边缘包括多个第一凸起部1101；所述第二触控电极块121的边缘包括多个第二凸起部1201；所述多个第一凸起部1101和所述多个第二凸起部1201彼此嵌套；所述第一凸起部1101与所述第二凸起部1201的形状相同或不同。
在一些实施例中，所述第一虚设电极的边缘包括多个第三凸起部1301；所述第三虚设电极的边缘包括多个第四凸起部1501。
在一些实施例中，所述第一凸起部和所述第二凸起部的形状相同、所述第三凸起部和所述第四凸起部的形状相同，所述第一凸起部、所述第二凸起部、所述第三凸起部和所述第四凸起部的形状包括以下至少一项：凸字形、矩形、三角形或梯形。
本公开实施例通过使第一凸起部与第二凸起部的形状相同，并使第一凸起部与第二凸起部的形状为多边形，能够增大在同等面积下提高触控单元的周长，因此在不增大触控单元的自电容(寄生电容)的情形下有效提高互电容量，从而提高触控灵敏度。
另外，驱动电极和感应电极中的一个通过桥电极连接，桥电极多采用双桥连通，每个桥具有两个通道，桥电极与位于不同层的驱动电极具有多个交叉节点，导致增加了互容值。在强光照射下，桥电极在某个特定角度可视，造成桥电极所在的金属层裸露。
在一些实施例中，同一个第一触控电极中相邻的第一触控电极块之间通过第一导电连接部电连接，同一个第二触控电极中相邻的第二触控电极块之间通过第二导电连接部电连接，所述第一触控电极块、所述第二触控电极块和所述第一导电连接部同层同材料设置，所述第一导电连接部与所述第二导电连接部之间设置有绝缘层，所述第二导电连接部通过所述绝缘层中的过孔将相邻的第二触控电极块电连接。
并且，相关技术中为了便于触控单元的设计，触控单元通常包含偶数个 像素单元，使得位于显示区边缘的触控单元完整度较低，影响触控功能。
相邻的第一触控电极块之间通过第一导电连接部电连接，能够形成第一触控电极，第一触控电极与一条数据线连接。
相邻的第二触控电极块之间通过第二导电连接部电连接，能够形成第二触控电极，第二触控电极与一条数据线连接。
需要说明的是，不同的驱动方式下，第一触控电极也可与多条数据线连接，第二触控电极也可与多条数据线连接。
第一触控电极和第二触控电极通过数据线连接至触控集成电路(图未示出)。触控集成电路例如为触控芯片，用于向第一触控电极110提供驱动信号并从第二触控电极120接收感应信号以及对感应信号进行处理，以实现触控感应功能。
数据线与触控集成电路连接的一端可以布置在触控区的同一侧。
所述第一触控电极块、所述第二触控电极块和所述第一导电连接部同层同材料设置，能够通过一次工艺形成所述第一触控电极块、所述第二触控电极块和所述第一导电连接部，简化工艺。
如图2所示，在第一方向D1上相邻的第一触控电极块111通过第一导电连接部电连接(图2未示出)从而形成沿第一方向D1延伸的第一触控电极110，在第二方向D2上相邻的第二触控电极块通过第二导电连接部连接从而形成沿第二方向D2延伸的第二触控电极120。
在一些实施例中，所述第一触控电极块、所述第二触控电极块和所述第一导电连接部均包括网格状结构，由多个金属网格组成。
在一些实施例中，所述第一触控电极、所述第二触控电极和所述第一导电连接部均包括网格状结构，由多个金属网格组成。
所述第一触控电极、所述第二触控电极和所述第一导电连接部均由网格状结构组成，而不是块状结构，能够防止第一触控电极、所述第二触控电极和所述第一导电连接部对显示面板上的子像素形成遮挡，从而影响显示效果。
如图2，图5，图7和图9所示，第一触控电极110和第二触控电极120均为网格状结构。相邻的第一触控电极块111之间，通过第一导电连接部连接，形成为一体的网状结构。相邻的第二触控电极块121之间，通过第二导 电连接部连接，第二导电连接部通过所述绝缘层中的过孔将相邻的第二触控电极块121电连接。
在一些实施例中，所述第二导电连接部包括至少两个间隔设置的导电连接图形，每个导电连接图形用于连接同一个第二触控电极中相邻的第二触控电极块，每个所述导电连接图形在所述显示功能层上的正投影与所述第一导电连接部的网格状结构在所述显示功能层上的正投影具有至少两个交叉节点。
通过设置所述第二导电连接部包括至少两个间隔设置的导电连接图形，能够实现同一个第二触控电极中相邻的第二触控电极块的电连接。
在一些实施例中，所述至少两个间隔设置的导电连接图形包括至少一组导电连接图形，每组导电连接图形包括两个导电连接图形，每组导电连接图形中的两个导电连接图形关于每组导电连接图形的沿第二方向的中心线对称。
本公开的实施例通过每组导电连接图形中的两个导电连接图形关于每组导电连接图形的沿第二方向的中心线对称，简化第二导电连接部的设计，且能降低工艺复杂度。
在一些实施例中，所述导电连接图形包括两个金属网格以及连接两个金属网格的导电连接线，所述导电连接线包括沿第三方向延伸的第一部分和沿第四方向延伸的第二部分，所述第一部分和所述第二部分连接，所述第三方向与所述第四方向相交，所述第三方向与所述第一方向之间的夹角为锐角，所述第四方向与所述第二方向之间的夹角为锐角。
本公开实施例中的网格状结构以四边形网格为例，但不以此为限，例如也可为六边形网格。通过设置所述导电连接图形包括沿第三方向延伸的第一部分和沿第四方向延伸的第二部分，能够避免导电连接图形沿某一方向延伸太长，导致第二导电连接部的范围太大。
在一些实施例中，所述导电连接图形的两个金属网格在所述显示功能层上的正投影与所述第一导电连接部的两个金属网格在所述显示功能层上的正投影重叠。
结合图2、图4、图5，对第二导电连接部进行说明。
图4为本公开实施例提供的一组导电连接图形的示意图，对应于图2中第二导电连接部122，图4为图2所示的第二导电连接部的放大示意图。如 图4所示，第二导电连接部包括两个导电连接图形。每个导电连接图形包括两个金属网格以及连接两个金属网格的导电连接线。其中一个导电连接图形通过第一导电连接线L1连接两侧的两个金属网格，另一个导电连接图形通过第二导电连接线L2连接两侧的两个金属网格。图5为图4所示的一组导电连接图形与第一导电连接部形成的交叉节点示意图。
其中，第一导电连接部在对应每个导电连接图形包括的两个金属网格的位置，设置有金属网格，在该位置为双层金属网格；而第一导电连接部在对应第一导电连接线L1和第二导电连接线L2的位置处，未设置金属走线，在该位置为单层走线。
如图5所示，第二导电连接部与第一导电连接部形成4个交叉节点，分别为交叉节点N1、N2、N3和N4，使得整个触控单元在没有手指触摸时的互容值为0.608pF，有手指触摸时的互容值为0.545pF，触控电路检测到的电容变化值为0.063pF，能够在减少交叉节点的前提下，保持触控灵敏度。同时，第一导电连接线L1和第二导电连接线L2的长度都很小，也减小了第一导电连接线L1和第二导电连接线L2的裸露面积，减小了第二导电连接部的可视风险。
图6为本公开实施例提供的另一组导电连接图形的示意图，对应于图2中第二导电连接部122，图6为图2所示的第二导电连接部的放大示意图。如图6所示，如图6所示，第二导电连接部包括两个导电连接图形。每个导电连接图形包括两个金属网格以及连接两个金属网格的导电连接线。其中一个导电连接图形通过第三导电连接线L3连接两侧的两个金属网格，另一个导电连接图形通过第四导电连接线L4连接两侧的两个金属网格。图7为图6所示的另一组导电连接图形与第一导电连接部形成的交叉节点示意图。
图6与图4的区别在于，第三导电连接线和第四导电连接线的长度稍微增长了一些。
如图7所示，第二导电连接部与第一导电连接部形成8个交叉节点，分别为N1至N8，使得整个触控单元在没有手指触摸时的互容值为0.756pF，有手指触摸时的互容值为0.694pF，触控电路检测到的电容变化值为0.062pF，能够在减少交叉节点的前提下，保持触控灵敏度。同时，第三导电连接线L3 和第四导电连接线L4的长度都很小，也减小了第一导电连接图形L1和第四导电连接图形L4的裸露面积，减小了第二导电连接部的可视风险。
在一些实施例中，所述第一触控电极块与所述第二触控电极块在分界处的网格状结构包括第一切口，网格状结构包括多个金属网格。
本公开实施例中，一个金属网格对应一个子像素。在其他实施例中，一个金属网格可对应多个子像素。
其中，金属网格包括多条金属线，为使第一触控电极块111与第二触控电极块121之间绝缘，在分界处将第一触控电极块111与第二触控电极块121之间的金属线进行断线，形成切口。
如图5和图7所示，其中，在第一触控电极块111与第二触控电极块121之间的金属线具有第一切口C1。
在一些实施例中，所述显示面板包括：多个重复单元，每个重复单元包括四个像素单元，每个像素单元包括四个子像素，每个重复单元的十六个子像素以RGBG的像素排列方式排列，相邻重复单元的顶角处的子像素共用；所述第一触控电极块包括的多个金属网格中的四个金属网格与相应的重复单元的四个顶角处的子像素一一对应，所述四个金属网格中的每个金属网格的四条金属线不包括切口。
以四个像素16个子像素为一个单元，保证最顶角的GBGR不断线，这种断线方案更均匀，保持整个面内RGB像素周围的断线都是均匀的，进而不影响色偏。
图8为本公开实施例提供的重复单元的示意图。
显示面板包括多个如图8所示的重复单元，每个重复单元包括4个像素单元，4个像素单元包括2个像素单元a和两个像素单元b。像素单元a包括BGGR，像素单元b包括RGGB。
图9为与图8对应的重复单元的断线示意图，重复单元4个顶角处的子像素分别为BGRG。第一触控电极块111包括的多个金属网格中的四个金属网格与相应的重复单元的四个顶角处的子像素BGRG一一对应。如图9所示，重复单元的四个顶角处的子像素BGRG对应的四个金属网格的金属线没有进行断线，不具有切口。
如图9所示，相邻的重复单元的顶角处的B像素共用。
在一些实施例中，所述第一触控电极块还包括至少一组金属线，每组所述金属线包括八条金属线，所述八条金属线位于所述四个金属网格中的每个金属网格的周围，且与所述四个金属网格中的每个金属网格连接，所述八条金属线中的四条金属线具有第二切口。
以四个像素16个子像素为一个单元，保证最顶角的GBGR不断线，这种断线方案更均匀，保持整个面内RGB像素周围的断线都是均匀的，进而不影响色偏。
如图9所示，顶角处的子像素B对应的金属网格周围连接有8条金属线，其中4条金属线进行断线，具有第二切口C2；顶角处的子像素R对应的金属网格周围连接有8条金属线，其中4条金属线进行断线，具有第二切口C2；顶角处的两个子像素G分别对应两个金属网格，每个金属周围分别连接有8条金属线，其中4条金属线进行断线，具有第二切口C2。
在一些实施例中，所述八条金属线中，具有第二切口的金属线和不具有第二切口的金属线沿所述金属网格的边界延伸方向且交替设置。
通过使八条金属线中具有第二切口的金属线和不具有第二切口的金属线沿所述金属网格的边界延伸方向且交替设置，使断线更均匀，保持整个面内RGB像素周围的断线都是均匀的，进而不影响色偏。
在一些实施例中，所述触控层包括多个触控单元，每个触控单元包括：在交叉处连接的两个第一触控电极块的各至少一部分以及在交叉处连接的两个第二触控电极块的各至少一部分；其中，所述触控单元覆盖显示面板中对应的M×M个像素单元，其中M为奇数。
通过使触控单元覆盖显示面板中奇数行和奇数列的像素单元，能够保证触控单元在触控层边缘的完整度，提高边缘触控性能。
图10为本公开实施例提供的触控单元对应的像素单元示意图，如图10所示，触控单元覆盖显示面板中对应的67行67列像素单元，此时，触控单元的尺寸d1为4314.8μm，触控单元在触控层边缘处的完整度较高。
触控单元采用奇数行奇数列像素单元还是偶数行偶数列像素单元需根据面板的尺寸决定。
图11为本公开实施例提供的触控层的完整度示意图，如图11所示，其中，触控层左上角处的触控单元的完整度达到65％，与左上角的触控单元相邻的位于上边缘的触控单元的完整度为97％，与上边缘的触控单元相邻的触控单元的完整度达到100％，与左上角的触控单元相邻的位于左边缘的触控单元的完整度为102％，与左边缘的触控单元相邻的触控单元的完整度达到104％。
需要说明的是，触控单元为奇数还是偶数，需要根据面板的尺寸进行确定。
在一些实施例中，所述触控层包括多个触控模块，每个触控模块包括以2×2矩阵方式排列的四个触控单元。
本公开实施例通过使每个触控模块包括四个触控单元，能够保证整个显示面板由偶数列像素单元构成，保证显示面板的对称性。
本公开实施例提供的显示面板在形成触控层时，需将4个触控单元作为一个触控模块来实现整面的触控层拼接，能够保证触控层边缘的完整度。
图12为本公开实施例提供的触控模块示意图，如图12所示，触控模块的尺寸d2为8629.6μm。
本公开的实施例还提供一种触控显示装置，包括上述的触控显示面板。
本公开实施例提供的触控层通过在所述第一触控电极块上设置至少一个第一镂空区和至少一个第二镂空区，能够降低第一触控电极块上的自电容(寄生电容)，提高触控层的触控灵敏度。
本公开的实施例还提供一种触控层的制作方法，包括：
形成沿第一方向延伸且延第二方向排列的多个第一触控电极；所述第一触控电极包括多个第一触控电极块，每个所述第一触控电极块包括至少一个第一镂空区和围绕所述第一镂空区且与所述第一镂空区之间具有一定间距的至少一个第二镂空区，所述第一镂空区的面积大于所述第二镂空区的面积；
形成沿第二方向延伸且延第一方向排列的多个第二触控电极，所述第一方向和所述第二方向相交，所述多个第一触控电极与所述多个第二触控电极交叉绝缘设置；
形成至少一个第一虚设电极和至少一个第二虚设电极，所述第一虚设电 极位于对应的所述第一镂空区内，所述第二虚设电极位于对应的所述第二镂空区内，所述至少一个第一虚设电极和所述至少一个第二虚设电极与所述第一触控电极同层绝缘设置。
本公开实施例提供的触控层的制作方法通过在所述第一触控电极块上设置至少一个第一镂空区和至少一个第二镂空区，能够降低第一触控电极块上的自电容(寄生电容)，提高触控层的触控灵敏度。
该触控显示装置包括但不限于：射频单元、网络模块、音频输出单元、输入单元、传感器、显示单元、用户输入单元、接口单元、存储器、处理器、以及电源等部件。本领域技术人员可以理解，上述触控显示装置的结构并不构成对显示装置的限定，显示装置可以包括上述更多或更少的部件，或者组合某些部件，或者不同的部件布置。在本公开实施例中，触控显示装置包括但不限于显示器、手机、平板电脑、电视机、可穿戴电子设备、导航显示设备等。
所述触控显示装置可以为：液晶电视、液晶显示器、数码相框、手机、平板电脑等任何具有显示功能的产品或部件，其中，所述触控显示装置还包括柔性电路板、印刷电路板和背板。
在本公开各方法实施例中，所述各步骤的序号并不能用于限定各步骤的先后顺序，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，对各步骤的先后变化也在本公开的保护范围之内。
需要说明，本说明书中的各个实施例均采用递进的方式描述，各个实施例之间相同相似的部分互相参见即可，每个实施例重点说明的都是与其他实施例的不同之处。尤其，对于实施例而言，由于其基本相似于产品实施例，所以描述得比较简单，相关之处参见产品实施例的部分说明即可。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其 他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
可以理解，当诸如层、膜、区域或基板之类的元件被称作位于另一元件“上”或“下”时，该元件可以“直接”位于另一元件“上”或“下”，或者可以存在中间元件。
在上述实施方式的描述中，具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (23)

  1. 一种触控显示面板，包括触控层和显示功能层，所述触控层位于所述显示功能层的出光侧，所述触控层包括沿第一方向延伸且延第二方向排列的多个第一触控电极和沿第二方向延伸且延第一方向排列的多个第二触控电极，所述第一方向和所述第二方向相交；
    所述多个第一触控电极与所述多个第二触控电极交叉绝缘设置；
    其中，所述第一触控电极包括多个第一触控电极块，每个所述第一触控电极块包括至少一个第一镂空区和围绕所述第一镂空区且与所述第一镂空区之间具有一定间距的至少一个第二镂空区，所述第一镂空区的面积大于所述第二镂空区的面积；
    所述触控层还包括至少一个第一虚设电极和至少一个第二虚设电极，所述第一虚设电极位于对应的所述第一镂空区内，所述第二虚设电极位于对应的所述第二镂空区内，所述至少一个第一虚设电极和所述至少一个第二虚设电极与所述第一触控电极同层绝缘设置。
  2. 根据权利要求1所述的触控显示面板，其中，所述第二触控电极包括多个第二触控电极块，每个所述第二触控电极块包括至少一个第三镂空区和围绕所述第三镂空区且与所述第三镂空区之间具有一定间距的至少一个第四镂空区，所述第三镂空区的面积大于所述第四镂空区的面积；
    所述触控层还包括至少一个第三虚设电极和至少一个第四虚设电极，所述第三虚设电极位于对应的所述第三镂空区内，所述第四虚设电极位于对应的所述第四镂空区内，所述至少一个第三虚设电极和所述至少一个第四虚设电极与所述第二触控电极同层绝缘设置。
  3. 根据权利要求1-2所述的触控显示面板，其中，所述各第二镂空区的面积相同，所述各第四镂空区的面积相同。
  4. 根据权利要求1-3所述的触控显示面板，其中，所述第一镂空区与所述第三镂空区的面积相同，所述第二镂空区与所述第四镂空区的面积相同。
  5. 根据权利要求1-4所述的触控显示面板，其中，所述第二镂空区的数 量与所述第四镂空区的数量相同。
  6. 根据权利要求1-5所述的触控显示面板，其中，所述第一镂空区、所述第二镂空区、所述第三镂空区和所述第四镂空区的形状近似正方形。
  7. 根据权利要求1所述的触控显示面板，其中，所述第一触控电极块的边缘包括多个第一凸起部；
    所述第二触控电极块的边缘包括多个第二凸起部；
    所述多个第一凸起部和所述多个第二凸起部彼此嵌套。
  8. 根据权利要求7所述的触控显示面板，其中，所述第一虚设电极的边缘包括多个第三凸起部；所述第三虚设电极的边缘包括多个第四凸起部。
  9. 根据权利要求7-8所述的触控显示面板，其中，所述第一凸起部和所述第二凸起部的形状相同，所述第三凸起部和所述第四凸起部的形状相同，所述第一凸起部、所述第二凸起部、所述第三凸起部和所述第四凸起部的形状包括以下至少一项：凸字形、矩形、三角形或梯形。
  10. 根据权利要求1所述的触控显示面板，其中，同一个第一触控电极中相邻的第一触控电极块之间通过第一导电连接部电连接，同一个第二触控电极中相邻的第二触控电极块之间通过第二导电连接部电连接，所述第一触控电极块、所述第二触控电极块和所述第一导电连接部同层同材料设置，所述第一导电连接部与所述第二导电连接部之间设置有绝缘层，所述第二导电连接部通过所述绝缘层中的过孔将相邻的第二触控电极块电连接。
  11. 根据权利要求10所述的触控显示面板，其中，所述第一触控电极块、所述第二触控电极块和所述第一导电连接部均包括网格状结构，由多个金属网格组成。
  12. 根据权利要求10-11所述的触控显示面板，其中，所述第一触控电极块与所述第二触控电极块在分界处的网格状结构包括第一切口。
  13. 根据权利要求10-12所述的触控显示面板，其中，所述第二导电连接部包括至少两个间隔设置的导电连接图形，每个导电连接图形用于连接同一个第二触控电极中相邻的第二触控电极块，每个所述导电连接图形在所述显示功能层上的正投影与所述第一导电连接部的网格状结构在所述显示功能层 上的正投影具有至少两个交叉节点。
  14. 根据权利要求10-13所述的触控显示面板，其中，所述至少两个间隔设置的导电连接图形包括至少一组导电连接图形，每组导电连接图形包括两个导电连接图形，每组导电连接图形中的两个导电连接图形关于每组导电连接图形的沿第二方向的中心线对称。
  15. 根据权利要求10-14所述的触控显示面板，其中，所述导电连接图形包括两个金属网格以及连接两个金属网格的导电连接线，所述导电连接线包括沿第三方向延伸的第一部分和沿第四方向延伸的第二部分，所述第一部分和所述第二部分连接，所述第三方向与所述第四方向相交，所述第三方向与所述第一方向之间的夹角为锐角，所述第四方向与所述第二方向之间的夹角为锐角。
  16. 根据权利要求10-15所述的触控显示面板，其中，所述导电连接图形的两个金属网格在所述显示功能层上的正投影与所述第一导电连接部的两个金属网格在所述显示功能层上的正投影重叠。
  17. 根据权利要求1所述的触控显示面板，其中，所述显示功能层包括：
    多个重复单元，每个重复单元包括四个像素单元，每个像素单元包括四个子像素，每个重复单元的十六个子像素以RGBG的像素排列方式排列，相邻重复单元的顶角处的子像素共用；
    所述第一触控电极块包括的多个金属网格中的四个金属网格与相应的重复单元的四个顶角处的子像素一一对应，所述四个金属网格中的每个金属网格的四条金属线不包括切口。
  18. 根据权利要求17所述的触控显示面板，其中，所述第一触控电极块还包括至少一组金属线，每组所述金属线包括八条金属线，所述八条金属线位于所述四个金属网格中的每个金属网格的周围，且与所述四个金属网格中的每个金属网格连接，所述八条金属线中的四条金属线具有第二切口。
  19. 根据权利要求17-18所述的触控显示面板，其中，所述八条金属线中，具有第二切口的金属线和不具有第二切口的金属线沿所述金属网格的边界延伸方向且交替设置。
  20. 根据权利要求1所述的触控显示面板，其中，所述触控层包括多个触控单元，每个触控单元包括：
    在交叉处连接的两个第一触控电极块的各至少一部分以及在交叉处连接的两个第二触控电极块的各至少一部分；
    其中，所述触控单元覆盖显示面板中对应的M×M个像素单元，其中M为奇数。
  21. 根据权利要求20所述的触控显示面板，其中，所述触控层包括多个触控模块，每个触控模块包括以2×2矩阵方式排列的四个触控单元。
  22. 一种触控显示装置，包括如权利要求1-21任一项所述的触控显示面板。
  23. 一种触控层的制作方法，包括：
    形成沿第一方向延伸且延第二方向排列的多个第一触控电极；所述第一触控电极包括多个第一触控电极块，每个所述第一触控电极块包括至少一个第一镂空区和围绕所述第一镂空区且与所述第一镂空区之间具有一定间距的至少一个第二镂空区，所述第一镂空区的面积大于所述第二镂空区的面积；
    形成沿第二方向延伸且延第一方向排列的多个第二触控电极，所述第一方向和所述第二方向相交，所述多个第一触控电极与所述多个第二触控电极交叉绝缘设置；
    形成至少一个第一虚设电极和至少一个第二虚设电极，所述第一虚设电极位于对应的所述第一镂空区内，所述第二虚设电极位于对应的所述第二镂空区内，所述至少一个第一虚设电极和所述至少一个第二虚设电极与所述第一触控电极同层绝缘设置。
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