WO2021254490A9 - 触控模组、触控显示屏及电子设备 - Google Patents

触控模组、触控显示屏及电子设备 Download PDF

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Publication number
WO2021254490A9
WO2021254490A9 PCT/CN2021/100956 CN2021100956W WO2021254490A9 WO 2021254490 A9 WO2021254490 A9 WO 2021254490A9 CN 2021100956 W CN2021100956 W CN 2021100956W WO 2021254490 A9 WO2021254490 A9 WO 2021254490A9
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WO
WIPO (PCT)
Prior art keywords
touch
area
electrode
metal mesh
layer
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PCT/CN2021/100956
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English (en)
French (fr)
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WO2021254490A1 (zh
Inventor
龚庆
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
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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 US17/775,731 priority Critical patent/US12001637B2/en
Publication of WO2021254490A1 publication Critical patent/WO2021254490A1/zh
Publication of WO2021254490A9 publication Critical patent/WO2021254490A9/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1643—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being associated to a digitizer, e.g. laptops that can be used as penpads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
    • G06F1/1698—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675 the I/O peripheral being a sending/receiving arrangement to establish a cordless communication link, e.g. radio or infrared link, integrated cellular phone
    • 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
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • 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; CALCULATING OR 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
    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material

Definitions

  • the present disclosure relates to the field of display technology, and in particular, to a touch control module, a touch display screen and an electronic device.
  • the present disclosure provides a touch module, a touch display screen and an electronic device, and the solutions are as follows:
  • a touch module includes:
  • the carrier layer, the first metal mesh layer, the insulating layer and the second metal mesh layer are stacked in sequence;
  • the second metal mesh layer has a first area and a second area, and the second metal mesh layer includes a plurality of touch control units located in the first area, and a plurality of touch control units located in the second area. a first electrode, the first electrode is coupled to a first touch unit in the plurality of touch units, and the first touch unit is adjacent to the first side of the second area;
  • the first metal mesh layer has a third area, the orthographic projection of the third area on the carrier layer overlaps with the orthographic projection of the second area on the carrier layer, and the first metal mesh
  • the grid layer includes a second electrode located in the third region, the second electrode is coupled to a second touch unit of the plurality of touch units, and the second touch unit is connected to the second touch unit. The other side of the area is adjacent, and the first electrode and the second electrode are used to form a target touch unit.
  • the orthographic projection of the third region on the bearing layer coincides with the orthographic projection of the second region on the bearing layer.
  • first side and the second side are adjacent sides of the second region.
  • each of the touch control units in the first area includes: a sensing electrode and a driving electrode;
  • the first electrode is coupled to one of the sensing electrodes and the driving electrodes in the first touch control unit
  • the second electrode is coupled to the other of the sensing electrodes and the driving electrodes in the second touch control unit.
  • One electrode is coupled.
  • the orthographic projection of the first electrode on the bearing layer coincides with the orthographic projection of the second region on the bearing layer, and the orthographic projection of the second electrode on the bearing layer is the same as the orthographic projection of the second region on the bearing layer.
  • the orthographic projections of the third region on the carrier layer are coincident.
  • the middle part of the second area is hollowed out, and the middle part of the third area is hollowed out;
  • the orthographic projection of the hollow portion of the second region on the bearing layer overlaps the orthographic projection of the hollow portion of the third region on the bearing layer.
  • the orthographic projection of the hollow portion of the second region on the bearing layer coincides with the orthographic projection of the hollow portion of the third region on the bearing layer.
  • the size of the second area is the same as the size of an area occupied by one of the touch control units in the first area, and the shape of the second area is the same as that of one of the first areas.
  • the shape of the area occupied by the touch unit is the same.
  • the second metal mesh layer includes one of the first electrodes located in the second region, and the number of the second electrodes included in the first metal mesh layer is the same as the number of the second electrodes.
  • the number of the first electrodes included in the metal mesh layer is equal.
  • the size of the second area is the same as the size of the area occupied by the plurality of touch control units in the first area, and the shape of the second area is the same as that of the first area.
  • the shape of the area occupied by each of the touch control units is the same.
  • the second metal mesh layer includes one or more of the first electrodes located in the second region;
  • the number of the second electrodes included in the first metal mesh layer is equal to the number of the first electrodes included in the second metal mesh layer.
  • the second area has rounded corners.
  • the second metal mesh layer further includes: one or more dummy electrodes on the first electrode.
  • the material of the bearing layer is silicon nitride or silicon oxide; or, the bearing layer is a transparent glass layer.
  • the second electrode is coupled to the second touch unit through a via hole.
  • one end of the via hole is located at a position where two metal lines of the first metal mesh layer intersect, and the other end of the via hole is located at a position where two metal lines of the second metal mesh layer intersect The location of the intersection corresponds to.
  • the touch module further includes: a protective layer on the side of the second metal mesh layer away from the bearing layer.
  • the material of the protective layer is an organic material.
  • a touch display screen is provided, wherein the touch display screen includes: a display screen, and the touch module according to the above aspect.
  • an electronic device wherein the electronic device includes: a power supply component, and the touch display screen according to the above aspect;
  • the power supply component is coupled to the touch display screen, and the power supply component is used for supplying power to the touch display screen.
  • FIG. 1 is a schematic structural diagram of a touch module provided by an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of a second metal mesh layer of a touch module provided by an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of a first metal mesh layer of a touch module provided by an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of a second metal mesh layer of another touch module provided by an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of a first metal mesh layer of another touch module provided by an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a second metal mesh layer of another touch module provided by an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a first metal mesh layer of another touch module provided by an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a second metal mesh layer of still another touch module provided by an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a first metal mesh layer of still another touch module provided by an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of another touch module provided by an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a touch display screen provided by an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of an electronic device provided by an embodiment of the present disclosure.
  • 1-9 are: 1-bearing layer, 2-first metal mesh layer, 21-third region, 211-second electrode, 3-insulating layer, 4-second metal mesh layer, 41-first area, 411-touch unit, 42-second area, 421-first electrode, 4211-dummy electrode, 5-via hole, 6-protective layer, 00-display screen, 01-touch module , 000-Electronics and J1-Powered Components.
  • Words like “include” or “include” mean that the elements or items appearing before “including” or “including” cover the elements or items listed after “including” or “including” and their equivalents, and do not exclude other component or object.
  • Words like “coupled” or “connected” are not limited to physical or mechanical coupling, but may include electrical coupling, whether direct or indirect.
  • “Up”, “Down”, “Left”, “Right”, etc. are only used to indicate the relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
  • And/or means that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and B exists alone.
  • the character “/” generally indicates the related objects before and after It is an “or” relationship.
  • the area of the touch unit located at the location of the opening or the corner of the arc is much smaller than the area of the touch units located at other locations. . corresponding.
  • the capacitance signal amount of the touch unit at the position of the opening or the corner of the arc is lower. In this way, the touch precision at the opening position or the arc edge position is poor, which seriously affects the user experience.
  • the embodiments of the present disclosure provide a touch module, and in a touch display screen including the touch module, the touch precision at any position is good, and the user experience is effectively improved.
  • FIG. 1 is a schematic structural diagram of a touch module provided by an embodiment of the present disclosure.
  • the touch module includes: a carrier layer 1 , a first metal mesh layer 2 , an insulating layer 3 and a second metal mesh layer 4 , which are stacked in sequence.
  • FIG. 2 shows a structure of the second metal mesh layer 4 .
  • FIG. 3 shows a structure of the first metal mesh layer 2 .
  • the touch module is generally located on one side of the display screen for user touch.
  • the second metal mesh layer 4 has a first region 41 and a second region 42 . That is, the second metal mesh layer 4 includes the first region 41 and the second region 42 .
  • the second metal mesh layer 4 includes a plurality of touch units 411 located in the first area 41 and a first electrode 421 located in the second area 42 . That is, a plurality of touch units 411 are formed in the first area 41 , and the first electrodes 421 are formed in the second area 42 .
  • the first electrode 421 may be coupled to a first touch unit of the plurality of touch units 411 , and the first touch unit is adjacent to the first side L1 of the second area 42 . That is, the first electrode 421 is coupled to the touch unit 411 adjacent to one side of the second region 42 . Coupling may refer to electrical connection.
  • the first metal mesh layer 2 provided by the embodiment of the present disclosure has a third region 21 , and the orthographic projection of the third region 21 on the carrier layer 1 and the second region 42 on the carrier layer 1 The orthographic projections overlap.
  • the first metal mesh layer 2 includes the second electrode 211 located in the third region 21 , that is, the third region 21 forms the second electrode 211 .
  • the second electrode 211 is coupled to a second touch unit of the plurality of touch units 411 , and the second touch unit is adjacent to the second side L2 of the second area 42 . That is, the second electrode 211 is coupled to the touch unit 411 adjacent to the other side of the second region 42 .
  • the first electrodes 421 in the second area 42 and the second electrodes 211 in the third area 21 can be used to form a target touch unit for the user to touch.
  • the capacitance signal of the target touch unit formed by the first electrode 421 and the second electrode 211 is relatively large, and the target touch unit The output touch precision is high.
  • the orthographic projection of the second area 42 on the display screen and the orthographic projection of the third area 31 on the display screen can be set at the openings on the display screen or the arc corners of the display screen, so as to effectively improve the The touch precision and sensitivity of the opening position of the display screen or the corner position of the arc.
  • the conductive layer compared with the traditional conductive layer made of indium tin oxide (ITO) material, not only has a thinner thickness, but also can make the final touch control layer formed.
  • the resistance of the cell is lower. That is, the touch unit formed by using the metal mesh layer has good conductive effect and touch effect.
  • the metal mesh can replace the traditional indium tin oxide ITO conductive layer, and the use of the metal mesh as the electrode can make the resistance lower and the conductive layer or the electrode layer thinner. Therefore, using the first metal mesh layer 2 to form the touch unit 411 can have good conduction and touch effects.
  • the carrier layer 1 may be a buffer layer that can be directly formed on the surface of the display screen.
  • the insulating layer 3 may be a film layer capable of insulating and isolating the first metal mesh layer 2 and the second metal mesh layer 4 .
  • the material of the insulating layer can be selected according to actual needs, which is not specifically limited in the embodiment of the present disclosure.
  • the embodiments of the present disclosure provide a touch module.
  • the touch module includes a carrier layer, a first metal mesh layer, an insulating layer and a second metal mesh layer arranged in layers, the first metal mesh layer includes a second electrode located in the third area, and the second metal mesh
  • the grid layer includes a first electrode in the second region, and the third region overlaps the second region. In this way, the capacitance signal quantity of the touch unit formed by the first electrode and the second electrode is relatively large. Based on this, by arranging the second area and the third area at positions corresponding to the openings or arc corners of the display screen, the touch precision and touch sensitivity at the positions can be effectively improved.
  • the plurality of touch control units 411 in the first area 41 may be arranged in a matrix.
  • Each touch unit 411 may include sensing electrodes and driving electrodes.
  • the sensing electrodes in the plurality of touch units 411 can be connected through coupling bridges, and similarly, the driving electrodes in the plurality of touch units 411 can also be connected through the coupling bridges, and the coupling bridges
  • the structure and setting position are mastered by technicians.
  • the shapes of the sensing electrodes and the driving electrodes in the touch control unit 411 can be set as required, which are not specifically limited in the embodiment of the present disclosure.
  • the first electrodes 421 may be coupled with one of the sensing electrodes and the driving electrodes in the first touch control unit, and the second electrodes 211 may be coupled with the sensing electrodes and the driving electrodes in the second touch control unit is coupled to the other electrode in the . That is, if the first electrode 421 is coupled with the sensing electrode in the first touch unit, the second electrode 211 is coupled with the driving electrode in the second touch unit.
  • the electrode 211 serves as a driving electrode, and the two form a target touch unit.
  • the second electrode 211 is coupled with the sensing electrode in the second touch unit, that is, the first electrode 421 is used as the driving electrode, and the second electrode 211 is used as the driving electrode.
  • the sensing electrodes form a target touch unit.
  • the second metal mesh layer 4 described in the embodiment of the present disclosure may further include: one or more dummy electrodes 4211 located on the first electrode 421 .
  • the number of dummy electrodes 4211 can be set according to design and usage requirements.
  • each dummy electrode 4211 can be set according to usage requirements.
  • both can be oval as shown in FIG. 2 , or can be other shapes, such as rhombus.
  • the first electrode 421 may be directly coupled to the first touch unit.
  • the opening position of the display screen can be designed without borders.
  • it also avoids the problem that the display screen is cracked due to the cutting of the opening position, and the local touch channel of the final guide is disconnected, resulting in poor touch control.
  • the second electrode 211 and the second touch unit may be coupled through the via hole 5 .
  • the way of forming the via hole 5 is mastered by the technicians.
  • both the first metal mesh layer 2 and the second metal mesh layer 4 may be mesh structures formed by interlacing multiple metal lines.
  • One end of the via hole 5 may be located at the position where the two metal lines of the first metal mesh layer 2 intersect, and the other end of the via hole 5 may be located at the position where the two metal lines of the second metal mesh layer 4 intersect. That is, one end of the via hole 5 may correspond to the position where the two metal lines of the first metal mesh layer 2 intersect, and the other end of the via hole 5 may correspond to the position where the two metal lines of the second metal mesh layer 4 intersect. correspond.
  • a plurality of via holes 5 may be included, and an appropriate arrangement of the plurality of via holes 5 may be selected according to design requirements, for example, a matrix arrangement as shown in the figure.
  • first side L1 and the second side L2 may be adjacent two sides of the second region 42 . That is, referring to FIGS. 2 and 3 , the first touch unit coupled to the first electrode 421 and the second touch unit coupled to the second electrode 211 may be located on the right side adjacent to the rectangular second area 42 , respectively. and underside.
  • first side L1 and the second side L2 may not be adjacent.
  • first touch unit coupled to the first electrode 421 and the second touch unit coupled to the second electrode 211 may be located on the left and right sides of the rectangular second region 42 , respectively. .
  • the orthographic projection of the third region 21 on the carrier layer 1 and the orthographic projection of the second region 42 on the carrier layer 1 may overlap, that is, the second region 42 of the first metal mesh layer 2 and the second metal mesh layer 2 may overlap.
  • the third regions 21 of the mesh layer 4 correspond to each other and have the same shape and size. In this way, the relative area between the first electrodes 421 located in the second area 42 and the second electrodes 211 located in the third area 21 can be ensured to be relatively large, and the target touch unit formed by the first electrodes 421 and the second electrodes 211 can be further ensured The amount of capacitive signal is large, which improves the touch precision and sensitivity of the display screen.
  • the shapes of the second area 42 and the third area 21 may be determined according to the positions corresponding to the display screen.
  • the second area 42 and the third area 21 correspond to the opening positions of the display screen, referring to FIG. 2 and FIG. 3
  • the second area 42 and the third area 21 can both be rectangles with hollowed-out
  • the orthographic projection of the hollow in the middle of the region 42 on the carrier layer 1 and the orthographic projection of the hollow in the middle of the third region 21 on the carrier layer 1 may overlap, and correspond to the position of the opening of the display screen. That is, when the two correspond to the rounded corners of the display screen, the two are arc-shaped.
  • the orthographic projection of the hollow in the middle of the second region 42 on the carrier layer 1 may also coincide with the orthographic projection of the hollow in the middle of the third region 21 on the carrier layer 1 .
  • the hollow in the middle of the second region 42 and the hollow in the middle of the third region 21 are the same in shape and size, and penetrate each other to the opening.
  • the shape of the hollow in the middle may be the same as the shape of the opening of the display screen, for example, both are circular as shown in FIG. 2 and FIG. 3 .
  • other shapes are also possible, such as oval and rhombus.
  • the second area 42 is a hollow annular shape
  • the third area 21 is the same as the second area 42 .
  • both the second area 42 and the third area 21 correspond to the arc corner positions of the display screen, referring to FIG. 4 and FIG. 5 , both the second area 42 and the third area 21 have rounded corners, and the The rounded corners coincide with the rounded corners of the display. That is, the second area 42 may also have a rounded corner, which corresponds to the rounded corner of the display screen.
  • the orthographic projection of the first electrode 421 on the carrier layer 1 and the orthographic projection of the second region 42 on the carrier layer 1 may overlap, and the orthographic projection of the second electrode 211 on the carrier layer 1 and the third region 21
  • the orthographic projections on the carrier layer 1 can be coincident. That is, the first electrode 421 can occupy the entire second region 42 of the first metal mesh layer 2 , and the second electrode 211 can also occupy the entire third region 21 of the second metal mesh layer 4 . In this way, the target touch unit formed by the first electrode 421 and the second electrode 211 can be further ensured to have a larger capacitance signal amount, thereby further ensuring touch precision and touch sensitivity.
  • the second area 42 and the third area 21 are provided with hollow holes corresponding to the display screen, since the second area 42 corresponds to the third area 21 and has the same shape and size, the second area 42 is mainly used for area size and A description of the relative display position.
  • the touch unit 411 needs to occupy the entire first metal mesh layer 2, and at the same time consider the electrical connection between the touch units 411 and the first electrodes 421 and the touch unit Coupling between 411, the size of the second area 42 can be described by the number of touch units 411 occupied.
  • the size of the second area 42 may be the same as the size of the area occupied by one touch unit 411 in the first area 41 , and the shape of the second area 42 is the same as that of one of the first areas 41 .
  • the shape of the area occupied by the touch unit 411 may be the same.
  • the second metal mesh layer 4 may include a first electrode 421 located in the second region 42 , and the number of the second electrodes 21 included in the first metal mesh layer 2 is equal to the number of the second metal mesh layers.
  • the number of included first electrodes 421 may be equal. That is, the first metal mesh layer 2 may also include one second electrode 211 .
  • the size of the second area 42 may be the same as the size of the area occupied by the plurality of touch control units 411 in the first area 41 , and the shape of the second area 42 is the same as that of the first area 41 .
  • the shapes of the areas occupied by the plurality of touch units 411 may be the same.
  • the second metal mesh layer 4 may include one or more first electrodes 421 located in the second region 42 , and the number of the second electrodes 21 included in the first metal mesh layer 2 is equal to that of the second metal mesh.
  • the number of the first electrodes 421 included in the mesh layer 4 may be equal. That is, the first metal mesh layer 2 may also include one or more second electrodes 211 .
  • the number of the second electrodes 211 included in the first metal mesh layer 2 is equal to the number of the first electrodes 421 included in the second metal mesh layer 4
  • the numbers can also be unequal.
  • the second metal mesh layer 4 may include one first electrode 421 in the second region 42 , and the first metal mesh layer 2 includes two second electrodes 211 in the third region 21 .
  • the second metal mesh layer 4 may include two first electrodes 421 located in the second region 42
  • the first metal mesh layer 2 may include one second electrode 211 located in the third region 21 .
  • the middle parts of the second area 42 and the third area 21 are hollowed out and correspond to the openings of the display screen as examples to illustrate the above two optional implementation manners:
  • the touch unit 411 needs to occupy the entire first metal mesh layer 2 , that is, the entire first metal mesh layer 2 only includes a plurality of touch units 411 and does not include any other electrodes , and the shape and size of the area occupied by each touch unit 411 are the same. Meanwhile, considering the electrical connection between the touch units 411 and the coupling between the first electrodes 421 and the first touch unit, the size of the second area 42 described below can be determined by the number of areas occupied by the touch unit 411 describe.
  • the second area 42 may have two situations. One is as shown in FIG. 2 and FIG. 3 , the second area 42 occupies an area of the touch unit 411 . In this case, as shown in FIG. 2 , The number of the first electrodes 421 is one, and the first electrodes 421 are coupled to one first touch unit. As shown in FIG. 3 , the number of the second electrodes 211 is one, and the second electrodes 211 are coupled to one second touch unit through the via hole 5 . It can be seen from the figure that in this scenario, the area of the second region 42 is relatively small, and the area of the first electrode 421 can be effectively increased by arranging a complete first electrode 421 in the second region 42 .
  • the area of the third region 21 is relatively small, and the area of the second electrode 211 can also be effectively increased by arranging a complete second electrode 211 in the third region 21 . In this way, the capacitance signal amount of the target touch unit formed by the first electrode 421 and the second electrode 211 can be increased, and the touch sensitivity can be improved.
  • the second area 42 occupies the area of two touch units 411 .
  • the area of the second region 42 is larger.
  • the number of the second electrodes 421 can be two, and they are respectively coupled to the two first touch units located on different sides of the second area 42 in a one-to-one correspondence.
  • the number of the second electrodes 211 can be two, and they are respectively coupled to the two second touch units located on different sides of the second region 42 through the via holes 5 in a one-to-one correspondence.
  • the number of the second electrodes 421 may be two, and they are respectively coupled to the two first touch units located on different sides of the second area 42 in a one-to-one correspondence.
  • the number of the second electrodes 211 may be one, and the second electrodes 211 are coupled to one second touch unit through the via hole 5 .
  • the number of the second electrodes 421 may be one, and the second electrodes 421 may be coupled to one first touch unit.
  • the number of the second electrodes 211 can be two, and they are respectively coupled to the two second touch units located on different sides of the second region 42 through the via holes 5 in a one-to-one correspondence.
  • the number of the first electrodes 421 included in the second metal mesh layer 4 may be the same as the number of areas of the touch control unit occupied by the second area 41 .
  • the second area 42 may occupy two or more touch points located in a row as shown in FIG. 6 .
  • control unit 411 or occupy two or more touch control units 411 in a column.
  • the second area 42 and the third area 21 have rounded corners and correspond to the arc corners of the display screen as an example to illustrate the above two optional implementation manners:
  • the size of the second area 42 may refer to the description of the opening position of the second area 42 corresponding to the display screen, that is, the area of the second area 42 may be relatively small, occupying only one area of the touch unit 411 .
  • the area of the second area 42 may be relatively large, such as occupying the area of a plurality of touch control units 411 .
  • the number of the first electrodes 421 can be one, and the first electrode 421 is coupled to one first touch unit .
  • the number of the second electrodes 211 may be one, and the second electrodes 211 are coupled to the second touch unit through the via holes 5 .
  • the number of the first electrodes 421 corresponds to two, and the two first electrodes 421 are respectively connected to the second area 421 .
  • the two first touch units on different sides of the area 42 are coupled in a one-to-one correspondence.
  • the number of the second electrodes 211 corresponds to two, and they are respectively coupled to the two second touch units located on different sides of the second area 42 through the via holes 5 in a one-to-one correspondence.
  • the touch module described in the embodiment of the present disclosure may further include: a protective layer 6 located on the side of the second metal mesh layer 4 away from the carrier layer 1 .
  • the protective layer 6 is a film layer capable of waterproofing, dustproofing, insulating and strengthening.
  • the material of the protective layer 6 can be selected according to actual needs.
  • the material of the protective layer 6 can be an organic material, that is, the protective layer 6 can be a film layer of an organic material.
  • the material of the carrier layer 1 may be silicon nitride (SiNx) or silicon oxide (SiOx), that is, the carrier layer 1 may be a film layer made of SiNx/SiOx material.
  • the touch module can be directly formed on the light-emitting side of the display screen by conventional processes such as evaporation, exposure, and etching, and together with the display screen, a touch display screen with a touch function can be formed.
  • the carrier layer 1 may be a transparent glass layer.
  • the touch module can be formed separately. That is, the transparent glass layer can be used as the substrate, and the first metal mesh layer 2 , the insulating layer 3 , the second metal mesh layer 4 and the protective layer 6 can be sequentially laminated and formed on the substrate by using the existing lamination process.
  • the formed touch module can be combined with the display screen through a full lamination process to form a touch display screen with touch function.
  • the touch module provided in the technical solution of the present disclosure is provided with a first metal mesh layer 2 and a second metal mesh layer 4 , and a plurality of touch units disposed in the first area 41 of the second metal mesh layer 4 411 may correspond to the surface of the display screen, and is used to realize the touch function of the main surface of the display screen.
  • the second area 42 may be located at the rounded corner of the display screen, and/or the second area 42 may be set opposite to the opening of the display screen. That is, the second area 42 is opposite to the opening of the display screen, so that the second area 42 is set as the first electrode 421, and the second area 42 is corresponding to the second area 42 and is located in the third of the first metal mesh layer 2.
  • the area 21 is set as the second electrode 211, it can ensure that the touch unit 411 formed by the first electrode 421 and the second electrode 211 can have a larger capacitance signal, and can improve the opening position of the display screen corresponding to the second area 42. and touch sensitivity in rounded corners.
  • the touch module provided by the embodiment of the present invention does not need to set additional signal coupling lines in the second area 42 , that is, it is not necessary to additionally set the second area 42 and the first area 41
  • the signal coupling line coupled to the touch unit 411 can achieve a borderless design at the opening position of the display screen, and because there is no need to set the signal coupling line, it avoids panel cracks caused by cutting the opening position, which eventually leads to The local touch channel is disconnected and the touch is bad.
  • the embodiments of the present disclosure provide a touch module.
  • the touch module includes a carrier layer, a first metal mesh layer, an insulating layer and a second metal mesh layer arranged in layers, the first metal mesh layer includes a second electrode located in the third area, and the second metal mesh
  • the grid layer includes a first electrode in the second region, and the third region overlaps the second region. In this way, the capacitance signal quantity of the touch unit formed by the first electrode and the second electrode is relatively large. Based on this, by arranging the second area and the third area at positions corresponding to the openings or arc corners of the display screen, the touch precision and touch sensitivity at the positions can be effectively improved.
  • FIG. 11 is a schematic structural diagram of a touch display screen provided by an embodiment of the present disclosure.
  • the touch display screen may include a display screen 00 and a touch module 01 as shown in any one of FIGS. 1 to 10 .
  • the touch module 01 may be located on one side of the display screen 00 .
  • the touch module includes: a carrier layer 1 , a first metal mesh layer 2 , an insulating layer 3 , a second metal mesh layer 4 and a protective layer 5 , which are stacked in sequence.
  • the second metal mesh layer 4 includes a first area 41 and a second area 42 .
  • the first area 41 is formed with a plurality of touch units 411
  • the second area 42 forms a first electrode 421 , which is located in the first electrode 421 .
  • a dummy electrode 4211 is provided, and the first electrode 421 is coupled to the touch unit 411 adjacent to one side of the second area 42 ; the first metal mesh layer 2 has a third area 21 , and the third area 21 corresponds to the second area 42 and The shape and size are the same, the third area 21 forms the second electrode 211, the second electrode 211 and the touch unit 411 adjacent to the other side of the second area 42 are coupled through the via 5; the first electrode 421 and the second electrode 211 are formed A touch unit 411 .
  • the touch module in the second embodiment can directly use the touch module provided in the above-mentioned first embodiment, and the specific implementation structure can refer to the relevant content described in the above-mentioned first embodiment, which will not be repeated here.
  • the touch module provided in the technical solution of the present invention is provided with a first metal mesh layer 2 and a second metal mesh layer 4 , and a plurality of touch units arranged in the first area 41 of the second metal mesh layer 4 411 may correspond to the surface of the display screen, and is used to realize the touch function of the main surface of the display screen.
  • the second area 42 may be located at the rounded corner of the display screen, and/or the second area 42 may be set opposite to the opening of the display screen. That is, the second area 42 is opposite to the opening of the display screen, so that the second area 42 is set as the first electrode 421, and the second area 42 is corresponding to the second area 42 and is located in the third of the first metal mesh layer 2.
  • the area 21 is set as the second electrode 211, it can ensure that the touch unit 411 formed by the first electrode 421 and the second electrode 211 can have a larger capacitance signal, and can improve the opening position of the display screen corresponding to the second area 42. and touch sensitivity in rounded corners.
  • the touch module provided by the embodiment of the present invention does not need to set additional signal coupling lines in the second area 42 , that is, there is no need to additionally set the touch between the second area 42 and the first area 41 .
  • the signal coupling line coupled to the control unit 411 can achieve a frameless design at the opening position of the display screen, and since there is no need to set the signal coupling line, the panel crack caused by the cutting of the opening position is avoided, which will eventually lead to local cracks. The touch channel is disconnected and the touch is bad.
  • FIG. 12 is a schematic structural diagram of an electronic device provided by an embodiment of the present disclosure. As shown in FIG. 12 , the electronic device may include a power supply assembly 100 and a touch display screen 000 as shown in FIG. 11 .
  • the power supply assembly 100 can be coupled to the touch display screen 000 for supplying power to the touch display screen 000 .
  • the touch module includes: a carrier layer 1 , a first metal mesh layer 2 , an insulating layer 3 , a second metal mesh layer 4 and a protective layer 5 , which are stacked in sequence.
  • the second metal mesh layer 4 includes a first area 41 and a second area 42 .
  • the first area 41 is formed with a plurality of touch units 411
  • the second area 42 forms a first electrode 421 , which is located in the first electrode 421 .
  • a dummy electrode 4211 is provided, and the first electrode 421 is coupled to the touch unit 411 adjacent to one side of the second area 42 ;
  • the first metal mesh layer 2 has a third area 21 , and the third area 21 corresponds to the second area 42 and The shape and size are the same, the third area 21 forms the second electrode 211, the second electrode 211 and the touch unit 411 adjacent to the other side of the second area 42 are coupled through the via 5; the first electrode 421 and the second electrode 211 are formed A touch unit 411 .
  • the touch module in the third embodiment can directly use the touch module provided in the above-mentioned first embodiment, and the specific implementation structure can refer to the relevant content described in the above-mentioned first embodiment, which will not be repeated here.
  • the touch module provided in the technical solution of the present invention is provided with a first metal mesh layer 2 and a second metal mesh layer 4 , and a plurality of touch units arranged in the first area 41 of the second metal mesh layer 4 411 may correspond to the surface of the display screen, and is used to realize the touch function of the main surface of the display screen.
  • the second area 42 may be located at the rounded corner of the display screen, and/or the second area 42 may be set opposite to the opening of the display screen. That is, the second area 42 is opposite to the opening of the display screen, so that the second area 42 is set as the first electrode 421, and the second area 42 is corresponding to the second area 42 and is located in the third of the first metal mesh layer 2.
  • the area 21 is set as the second electrode 211, it can ensure that the touch unit 411 formed by the first electrode 421 and the second electrode 211 can have a larger capacitance signal, and can improve the opening position of the display screen corresponding to the second area 42. and touch sensitivity in rounded corners.
  • the touch module provided by the embodiment of the present invention does not need to set additional signal coupling lines in the second area 42 , that is, there is no need to additionally set the touch between the second area 42 and the first area 41 .
  • the signal coupling line coupled to the control unit 411 can achieve a frameless design at the opening position of the display screen, and since there is no need to set the signal coupling line, the panel crack caused by the cutting of the opening position is avoided, which will eventually lead to local cracks. The touch channel is disconnected and the touch is bad.

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Abstract

一种触控模组、触控显示屏及电子设备，涉及显示技术领域。该触控模组包括层叠设置的承载层（1）、第一金属网格层（2）、绝缘层（3）和第二金属网格层（4），第一金属网格层（2）包括位于第三区域（21）中的第二电极（211），第二金属网格层（4）包括位于第二区域（42）中的第一电极（421），且第三区域（21）与第二区域（42）重叠。如此，由该第一电极（421）和该第二电极（211）形成的触控单元（411）的电容信号量较大。基于此，通过将第二区域（42）和第三区域（21）设置于对应显示屏开孔或圆弧边角的位置处，即可以有效提升该位置处的触控精度和触控灵敏度。

Description

触控模组、触控显示屏及电子设备
本公开要求于2020年6月19日提交的申请号为202010568114.1、发明名称为“触控模组、触控显示屏及电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开涉及显示技术领域，特别是涉及一种触控模组、触控显示屏及电子设备。
背景技术
现有的手持显示设备中，例如手机和平板电脑，会为了设置扩音器、摄像头等装置，在显示屏上开孔，同时为了使手机圆润拿握更加舒服，将显示屏的边角设置为圆弧状。
发明内容
本公开提出了一种触控模组、触控显示屏及电子设备，所述方案如下：
一方面，提供了一种触控模组，所述触控模组包括：
依次层叠设置的承载层、第一金属网格层、绝缘层和第二金属网格层；
所述第二金属网格层具有第一区域和第二区域，且所述第二金属网格层包括位于所述第一区域中的多个触控单元，以及位于所述第二区域中的第一电极，所述第一电极与所述多个触控单元中的第一触控单元耦接，所述第一触控单元与第二区域的第一侧相邻；
所述第一金属网格层具有第三区域，所述第三区域在所述承载层上的正投影与所述第二区域在所述承载层上的正投影重叠，所述第一金属网格层包括位于所述第三区域中的第二电极，所述第二电极与所述多个触控单元中的第二触控单元耦接，所述第二触控单元与所述第二区域的另一侧相邻，所述第一电极与所述第二电极用于形成一目标触控单元。
可选的，所述第三区域在所述承载层上的正投影与所述第二区域在所述承 载层上的正投影重合。
可选的，所述第一侧与所述第二侧为所述第二区域相邻的两侧。
可选的，所述第一区域中的每个所述触控单元均包括：感应电极和驱动电极；
所述第一电极与所述第一触控单元中的感应电极和驱动电极中的一个电极耦接，所述第二电极与所述第二触控单元中的感应电极和驱动电极中的另一个电极耦接。
可选的，所述第一电极在所述承载层上的正投影与所述第二区域在所述承载层上的正投影重合，所述第二电极在所述承载层上的正投影与所述第三区域在所述承载层上的正投影重合。
可选的，所述第二区域的中部镂空，所述第三区域的中部镂空；
且，所述第二区域的镂空部分在所述承载层上的正投影和所述第三区域的镂空部分在所述承载层上的正投影重叠。
可选的，所述第二区域的镂空部分在所述承载层上的正投影和所述第三区域的镂空部分在所述承载层上的正投影重合。
可选的，所述第二区域的尺寸与所述第一区域中的一个所述触控单元所占区域的尺寸相同，且所述第二区域的形状与所述第一区域中的一个所述触控单元所占区域的形状相同。
可选的，所述第二金属网格层包括位于所述第二区域中的一个所述第一电极，所述第一金属网格层包括的所述第二电极的数量与所述第二金属网格层包括的所述第一电极的数量相等。
可选的，所述第二区域的尺寸与所述第一区域中的多个所述触控单元所占区域的尺寸相同，且所述第二区域的形状与所述第一区域中的多个所述触控单元所占区域的形状相同。
可选的，所述第二金属网格层包括位于所述第二区域的一个或多个所述第一电极；
所述第一金属网格层包括的所述第二电极的数量与所述第二金属网格层包括的所述第一电极的数量相等。
可选的，所述第二区域具有圆角。
可选的，所述第二金属网格层还包括：位于所述第一电极上的一个或多个 虚设电极。
可选的，所述承载层的材质为氮化硅或氧化硅；或，所述承载层为透明玻璃层。
可选的，所述第二电极与所述第二触控单元通过过孔耦接。
可选的，所述过孔的一端位于所述第一金属网格层的两条金属线相交的位置处，所述过孔的另一端位于所述第二金属网格层的两条金属线相交的位置对应。
可选的，所述触控模组还包括：位于所述第二金属网格层远离所述承载层一侧的保护层。
可选的，所述保护层的材质为有机材质。
另一方面，提供了一种触控显示屏，其中，所述触控显示屏包括：显示屏，以及如上述方面所述的触控模组。
又一方面，提供了一种电子设备，其中，所述电子设备包括：供电组件，以及如上述方面所述的触控显示屏；
所述供电组件与所述触控显示屏耦接，所述供电组件用于为所述触控显示屏供电。
附图说明
本公开上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解，其中：
图1是本公开实施例提供的一种触控模组的结构示意图；
图2是本公开实施例提供的一种触控模组的第二金属网格层的结构示意图；
图3是本公开实施例提供的一种触控模组的第一金属网格层的结构示意图；
图4是本公开实施例提供的另一种触控模组的第二金属网格层的结构示意图；
图5是本公开实施例提供的另一种触控模组的第一金属网格层的结构示意图；
图6是本公开实施例提供的又一种触控模组的第二金属网格层的结构示意图；
图7是本公开实施例提供的又一种触控模组的第一金属网格层的结构示意 图；
图8是本公开实施例提供的再一种触控模组的第二金属网格层的结构示意图；
图9是本公开实施例提供的再一种触控模组的第一金属网格层的结构示意图；
图10是本公开实施例提供的另一种触控模组的结构示意图；
图11是本公开实施例提供的一种触控显示屏的结构示意图；
图12是本公开实施例提供的一种电子设备的结构示意图。
图1-图9中各标号为：1-承载层、2-第一金属网格层、21-第三区域、211-第二电极、3-绝缘层、4-第二金属网格层、41-第一区域、411-触控单元、42-第二区域、421-第一电极、4211-虚设电极、5-过孔、6-保护层、00-显示屏、01-触控模组、000-电子设备和J1-供电组件。
具体实施方式
为更进一步阐述本公开为达成预定发明目的所采取的技术手段及功效,以下结合附图及可选实施例，对依据本公开提出的触控模组、触控显示屏及电子设备，其具体实施方式、结构、特征及其功效，详细说明如后。在下述说明中，“第一”、“第二”、“第三”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。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个。“包括”或者“包含”等类似的词语意指出现在“包括”或者“包含”前面的元件或者物件涵盖出现在“包括”或者“包含”后面列举的元件或者物件及其等同，并不排除其他元件或者物件。“耦接”或者“相连”等类似的词语并非限定于物理的或者机械的耦接，而是可以包括电性的耦接，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，则所述相对位置关系也可能相应地改变。和/或”，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
目前，开设有开孔或边角为圆弧状的触控显示屏中，开孔位置或圆弧边角 位置处设置的触控单元的面积远小于于其他位置处设置的触控单元的面积。相应的。开孔位置或圆弧边角位置处的触控单元的电容信号量则较低。如此，导致开孔位置或圆弧边角位置处的触控精度不佳，严重影响了用户体验。
本公开实施例提供了一种触控模组，包括该触控模组的触控显示屏中，任何位置的触控精度均较好，有效改善了用户体验。
图1是本公开实施例提供的一种触控模组的结构示意图。如图1所示，该触控模组包括：依次层叠设置的承载层1、第一金属网格层2、绝缘层3以及第二金属网格层4。结合图1，图2示出了一种第二金属网格层4的结构。图3示出了一种第一金属网格层2的结构。触控模组一般位于显示屏的一侧，用于供用户触控。
参考图2可以看出，本公开实施例提供的第二金属网格层4具有第一区域41和第二区域42。即，第二金属网格层4包括第一区域41和第二区域42。该第二金属网格层4包括位于第一区域41中的多个触控单元411，以及位于第二区域42中的第一电极421。即，第一区域41形成有多个触控单元411，所述第二区域42形成第一电极421。该第一电极421可以与多个触控单元411中的第一触控单元耦接，该第一触控单元与第二区域42的第一侧L1相邻。即，第一电极421与第二区域42一侧相邻的触控单元411耦接。耦接可以是指电连接。
参考图3可以看出，本公开实施例提供的第一金属网格层2具有第三区域21，且该第三区域21在承载层1上的正投影与第二区域42在承载层1上的正投影重叠。该第一金属网格层2包括位于第三区域21中的第二电极211，即，第三区域21形成第二电极211。该第二电极211与多个触控单元411中的第二触控单元耦接，该第二触控单元与第二区域42的第二侧L2相邻。即，第二电极211与第二区域42另一侧相邻的触控单元411耦接。
其中，位于第二区域42中的第一电极421与位于第三区域21中的第二电极211可以用于形成一目标触控单元，用于供用户触控。
因该第一电极421和第二电极211隶属于不同的金属网格层，故由该第一电极421和第二电极211形成的目标触控单元的电容信号量较大，该目标触控单元出的触控精度较高。基于此，可以设置第二区域42在显示屏上的正投影和第三区域31在显示屏上的正投影，位于显示屏上开设的开孔或显示屏的圆弧边角处，从而有效提升显示屏的开孔位置或圆弧边角位置的触控精度和灵敏度。
此外，采用金属网格(Metal Mesh)作为导电层，相对于采用传统的由氧化铟锡(indium tin oxide，ITO)材料制成的导电层，不仅厚度较薄，而且可以使得最终形成的触控单元的电阻更低。即，使用金属网格层形成的触控单元具有良好的导电效果和触控效果。换言之，金属网格可以替代传统氧化铟锡ITO导电层，使用金属网格做电极可以使得电阻更低、导电层或者电极层更薄。所以使用第一金属网格层2形成触控单元411可以具有良好的导电和触控效果。
可选的，承载层1可以是能够直接成型在显示屏表面的缓冲层。绝缘层3可以为能够将第一金属网格层2和第二金属网格层4绝缘隔离的膜层。绝缘层的材质可以根据实际需要进行选择，本公开实施例不做具体限定。
综上所述，本公开实施例提供了一种触控模组。该触控模组包括层叠设置的承载层、第一金属网格层、绝缘层和第二金属网格层，第一金属网格层包括位于第三区域中的第二电极，第二金属网格层包括位于第二区域中的第一电极，且第三区域与第二区域重叠。如此，由该第一电极和该第二电极形成的触控单元的电容信号量较大。基于此，通过将第二区域和第三区域设置于对应显示屏开孔或圆弧边角的位置处，即可以有效提升该位置处的触控精度和触控灵敏度。
可选的，参考图2，第一区域41中的多个触控单元411可以是呈矩阵排列的。每个触控单元411均可以包括感应电极和驱动电极。多个触控单元411中的感应电极之间可以通过耦接桥耦接导通，同样，多个触控单元411中的驱动电极之间也可以通过耦接桥耦接导通，耦接桥的结构以及设置位置均为技术人员所掌握。且，触控单元411中的感应电极和驱动电极的形状可以根据需要进行设置，本公开实施例不做具体限定。
在本公开实施例中，第一电极421可以与第一触控单元中的感应电极和驱动电极中的一个电极耦接，第二电极211可以与第二触控单元中的感应电极和驱动电极中的另一个电极耦接。即，若第一电极421与第一触控单元中的感应电极耦接，则第二电极211与第二触控单元中的驱动电极耦接，换言之，第一电极421作为感应电极，第二电极211作为驱动电极，二者形成一目标触控单元。若第一电极421与第一触控单元中的驱动电极耦接，则第二电极211与第二触控单元中的感应电极耦接，即第一电极421作为驱动电极，第二电极211作为感应电极，二者形成一目标触控单元。
可选的，参考图2，本公开实施例记载的第二金属网格层4还可以包括：位于第一电极421上的一个或多个虚设(dummy)电极4211。虚设电极4211的数量可以根据设计和使用需要进行设置。
可选的，每个虚设电极4211的形状可以根据使用需要进行设置。例如可以均为图2所示的椭圆形，或者也可以为其他形状，如菱形。
可选的，结合图2，第一电极421可以直接与第一触控单元耦接。如此，第二区域42中无需设置额外的信号耦接线，即无需额外的设置第二区域42与第一区域41中的第一触控单元耦接的信号耦接线。如此，显示屏的开孔位置可以做到无边框设计。并且，还避免了因开孔位置的裁切导致显示屏出现裂纹，最终导的局部触控通道断开而发生触控不良的问题。
可选的，结合图2和图3，第二电极211与第二触控单元可以通过过孔5耦接。过孔5成型的方式为技术人员所掌握。
其中，第一金属网格层2和第二金属网格层4均可以是由多条金属线交错形成的网格结构。过孔5的一端可以位于第一金属网格层2的两条金属线相交的位置处，过孔5的另一端可以位于第二金属网格层4的两条金属线相交的位置处。即过孔5的一端可以与第一金属网格层2的两条金属线相交的位置相对应，过孔5的另一端可以与第二金属网格层4的两条金属线相交的位置相对应。
可选的，结合图3，可以包括多个过孔5，且该多个过孔5可以根据设计的需要选择合适的排列方式，例如可以是图中所示的矩阵排列。
可选的，第一侧L1和第二侧L2可以为第二区域42相邻的两侧。即，参考图2和图3，第一电极421耦接的第一触控单元与第二电极211耦接的第二触控单元，可以分别位于呈矩形的第二区域42相邻的右侧和下侧。
当然，在一些实施例中，第一侧L1和第二侧L2也可以不相邻。如，结合图2和图3，第一电极421耦接的第一触控单元与第二电极211耦接的第二触控单元，可以分别位于呈矩形的第二区域42左侧和右侧。
可选的，第三区域21在承载层1上的正投影与第二区域42在承载层1上的正投影可以重合，即第一金属网格层2具有的第二区域42与第二金属网格层4具有的第三区域21对应且形状和尺寸均相同。如此，可以确保位于第二区域42中的第一电极421与位于第三区域21中的第二电极211的相对面积较大，进一步确保第一电极421与第二电极211形成的目标触控单元的电容信号量较大， 提升显示屏的触控精度和灵敏度。
可选的，第二区域42和第三区域21的形状可以根据对应于显示屏的位置而定。例如，当第二区域42和第三区域21对应于显示屏的开孔位置时，则参考图2和图3，第二区域42和第三区域21可以均为中部镂空的矩形，且第二区域42的中部镂空在承载层1上的正投影与第三区域21的中部镂空在承载层1上的正投影可以重叠，并对应于显示屏的开孔位置处。即，当二者对应于显示屏的圆角位置，则二者为圆弧状。
可选的，第二区域42的中部镂空在承载层1上的正投影与第三区域21的中部镂空在承载层1上的正投影还可以重合。第二区域42的中部镂空和第三区域21的中部镂空的形状和尺寸均相同，并相互贯通至开孔处。
可选的，中部镂空的形状可以与显示屏的开孔的形状相同，如均为图2和图3的圆形。当然，在一些实施例中，也可以为其他形状，如长圆形和菱形。此时可以理解的，第二区域42为中空的环形，第三区域21与第二区域42相同。
又例如，当第二区域42和第三区域21对应于显示屏的圆弧边角位置处时，则参考图4和图5，第二区域42和第三区域21均具有圆角，且该圆角与显示屏的圆弧边角重合。即，第二区域42还可以为圆角形，用于对应显示屏的圆角处。
可选的，第一电极421在承载层1上的正投影与第二区域42在承载层1上的正投影可以重合，且第二电极211在承载层1上的正投影与第三区域21在承载层1上的正投影可以重合。即，第一电极421可以占满第一金属网格层2的整个第二区域42，同样第二电极211可以占满第二金属网格层4的整个第三区域21。如此，可以进一步保证第一电极421和第二电极211形成的目标触控单元具有较大的电容信号量，进一步确保触控精度和触控灵敏度。
当第二区域42和第三区域21设置镂空对应显示屏的开孔时，由于第二区域42与第三区域21对应，且形状、大小相同，所以以第二区域42为主进行面积大小以及相对显示屏位置的描述。其中，在没有第二区域42的情况下，触控单元411需要占满整个第一金属网格层2，同时考虑到触控单元411之间的电连接，以及第一电极421与触控单元411之间的耦接，第二区域42可以通过占用触控单元411的数量进行大小的描述。
由此以第二区域42在承载层1上的正投影与第三区域21在承载层1上的正投影重合为例，对第二区域42，第三区域21，第一电极421和第二电极211 做以如下说明：
作为一种可选的实现方式，第二区域42的尺寸与第一区域41中的一个触控单元411所占区域的尺寸可以相同，且第二区域42的形状与第一区域41中的一个触控单元411所占区域的形状可以相同。在此基础上，第二金属网格层4可以包括位于第二区域42中的一个第一电极421，且第一金属网格层2包括的第二电极21的数量与第二金属网格层4包括的第一电极421的数量可以相等。即，第一金属网格层2也可以包括一个第二电极211。
作为另一种可选的实现方式，第二区域42的尺寸与第一区域41中的多个触控单元411所占区域的尺寸可以相同，且第二区域42的形状与第一区域41中的多个触控单元411所占区域的形状可以相同。在此基础上，第二金属网格层4可以包括位于第二区域42中的一个或多个第一电极421，且第一金属网格层2包括的第二电极21的数量与第二金属网格层4包括的第一电极421的数量可以相等。即，第一金属网格层2也可以包括一个或多个第二电极211。
当然，在另一种可选的实现方式场景下，在一些实施例中，第一金属网格层2包括的第二电极211的数量与第二金属网格层4包括的第一电极421的数量也可以不相等。例如，第二金属网格层4可以包括位于第二区域42中的一个第一电极421，而第一金属网格层2包括位于第三区域21中的两个第二电极211。或，第二金属网格层4可以包括位于第二区域42中的两个第一电极421，而第一金属网格层2包括位于第三区域21中的一个第二电极211。
示例的，以第二区域42和第三区域21的中部镂空，且对应显示屏的开孔为例，说明上述两种可选的实现方式：
在没有第二区域42的情况下，触控单元411需要占满整个第一金属网格层2，即整个第一金属网格层2仅包括多个触控单元411，而不包括任何其他电极，且各个触控单元411所占区域的形状和大小均相同。同时，考虑到触控单元411之间的电连接，以及第一电极421与第一触控单元之间的耦接，下述第二区域42的尺寸可以通过占用触控单元411的区域的数量进行描述。
如上述实施例记载，第二区域42可以具有两种情况，一种是如图2和图3所示，第二区域42占用一个触控单元411的区域，此时，如图2所示，第一电极421的数量为一个，且第一电极421与一个第一触控单元耦接。如图3所示，第二电极211的数量为一个，且第二电极211与一个第二触控单元通过过孔5 耦接。从图中可以看出，在该场景下，第二区域42的面积相对较小，通过在第二区域42中设置一个完整的第一电极421可以有效的增加第一电极421的面积。同样，第三区域21的面积也相对较小，通过在第三区域21中设置一个完整的第二电极211也可以有效的增加第二电极211的面积。如此，能够提高第一电极421和第二电极211形成的目标触控单元的电容信号量，提高触控灵敏性。
另一种是如图6和图7所示，第二区域42占用两个触控单元411的区域。此时，从图6中可以看出，相对于图2而言，第二区域42的面积较大。此时，第二电极421的数量可以为两个，且分别与位于第二区域42不同侧的两个第一触控单元一一对应耦接。第二电极211的数量可以为两个，且分别与位于第二区域42不同侧的两个第二触控单元通过过孔5一一对应耦接。或者，第二电极421的数量可以为两个，且分别与位于第二区域42不同侧的两个第一触控单元一一对应耦接。而第二电极211的数量可以为一个，且与一个第二触控单元通过过孔5耦接。或者，第二电极421的数量可以为一个，且与一个第一触控单元耦接。而第二电极211的数量可以为两个，且分别与位于第二区域42不同侧的两个第二触控单元通过过孔5一一对应耦接。
需要说明的是，从上述实施例记载也可以看出，第二金属网格层4包括的第一电极421的数量，与第二区域41占用的触控单元的区域的数量可以相同。
可选的，考虑到显示屏上开孔的设置，以及考虑到触控单元411通常需要矩阵排列，所以第二区域42可以是占用如图6所示，位于一行中的两个或多个触控单元411，或者占用位于一列中的两个或多个触控单元411。
示例的，以第二区域42和第三区域21具有圆角，且对应显示屏的圆弧边角为例，说明上述两种可选的实现方式：
第二区域42的大小可以参考上述第二区域42对应显示屏的开孔位置的描述，即第二区域42的面积可以相对较小，仅占用一个触控单元411的区域。或者第二区域42的面积可以相对较大，如占用多个触控单元411的区域。
如图4和图5所示，其中，当第二区域42占用一个触控单元411的区域时，第一电极421的数量可以为一个，且第一电极421与一个第一触控单元耦接。第二电极211的数量可以为一个，且与第二触控单元通过过孔5耦接。
如图8和图9所示，当第二区域42占用两个触控单元411的区域时，第一电极421的数量对应的为两个，且该两个第一电极421分别与位于第二区域42 不同侧的两个第一触控单元一一对应耦接。第二电极211的数量对应的为两个，且分别与位于第二区域42不同侧的两个第二触控单元通过过孔5一一对应耦接。具体的原理分析可以参考上述第二区域42对应显示屏的开孔位置的描述。
可选的，参考图10，本公开实施例记载的触控模组还可以包括：位于第二金属网格层4远离承载层1一侧的保护层6。该保护层6为能够起到防水、防尘、绝缘以及强化的膜层。
其中，该保护层6的材质可以根据实际需要进行选择。例如该保护层6的材质可以为有机材质，即该保护层6可以为有机材质膜层。
可选的，承载层1的材质可以为氮化硅(SiNx)，或，氧化硅(SiOx)，即，承载层1可以是SiNx/SiOx材质的膜层。此时，触控模组可以通过蒸镀、曝光和蚀刻等常规工艺手段直接成型在显示屏的出光侧，与显示屏一起形成具有触控功能的触控显示屏。
或者，承载层1可以是透明玻璃层。此时，触控模组可以单独进行成型。即，可以以透明玻璃层为基板，采用现有的层膜工艺在该基板上依次层叠成型第一金属网格层2、绝缘层3、第二金属网格层4和保护层6。成型后的触控模组可以与显示屏通过全贴合的工艺结合在一起，以形成具有触控功能的触控显示屏。
本公开技术方案中提供的触控模组，其设置有第一金属网格层2和第二金属网格层4，第二金属网格层4的第一区域41设置的多个触控单元411可以对应于显示屏的表面，用于实现显示屏的主体表面的触控功能，第二区域42可以位于显示屏的圆角处，和/或者第二区域42中设置与显示屏开孔相对的镂空即第二区域42与显示屏的开孔位置相对，这样将第二区域42设置为第一电极421，将与第二区域42相对应的并位于第一金属网格层2的第三区域21设置为第二电极211，则可以保证第一电极421和第二电极211形成的触控单元411能够具有较大的电容信号量，可以提升第二区域42对应的显示屏的开孔位置和圆角位置触控的灵敏性。
并且如上所述，对应显示屏的开孔位置，本发明实施例提供的触控模组于第二区域42无需设置额外的信号耦接线，即无需额外的设置第二区域42与第一区域41的触控单元411耦接的信号耦接线，可以在显示屏的开孔位置做到无边框设计，且由于无需设置信号耦接线，则避免了由于开孔位置的裁切导致面 板裂纹，最终导致的局部触控通道断开类触控不良。
综上所述，本公开实施例提供了一种触控模组。该触控模组包括层叠设置的承载层、第一金属网格层、绝缘层和第二金属网格层，第一金属网格层包括位于第三区域中的第二电极，第二金属网格层包括位于第二区域中的第一电极，且第三区域与第二区域重叠。如此，由该第一电极和该第二电极形成的触控单元的电容信号量较大。基于此，通过将第二区域和第三区域设置于对应显示屏开孔或圆弧边角的位置处，即可以有效提升该位置处的触控精度和触控灵敏度。
图11是本公开实施例提供的一种触控显示屏的结构示意图。如图11示，该触控显示屏可以包括显示屏00，以及如图1至图10任一所示的触控模组01。
其中，触控模组01可以位于显示屏00的一侧。
触控模组包括：依次层叠设置的承载层1、第一金属网格层2、绝缘层3、第二金属网格层4以及保护层5。其中，第二金属网格层4包括第一区域41和第二区域42，第一区域41形成有多个触控单元411，第二区域42形成第一电极421，并于第一电极421中设置虚设电极4211，第一电极421与第二区域42一侧相邻的触控单元411耦接；第一金属网格层2具有第三区域21，第三区域21与第二区域42对应且形状尺寸相同，第三区域21形成第二电极211，第二电极211与第二区域42另一侧相邻的触控单元411通过过孔5耦接；第一电极421与第二电极211形成一触控单元411。
具体的，本实施例二中的触控模组可直接使用上述实施例一提供的触控模组，具体的实现结构可参见上述实施例一中描述的相关内容，此处不再赘述。
本发明技术方案中提供的触控模组，其设置有第一金属网格层2和第二金属网格层4，第二金属网格层4的第一区域41设置的多个触控单元411可以对应于显示屏的表面，用于实现显示屏的主体表面的触控功能，第二区域42可以位于显示屏的圆角处，和/或者第二区域42中设置与显示屏开孔相对的镂空即第二区域42与显示屏的开孔位置相对，这样将第二区域42设置为第一电极421，将与第二区域42相对应的并位于第一金属网格层2的第三区域21设置为第二电极211，则可以保证第一电极421和第二电极211形成的触控单元411能够具有较大的电容信号量，可以提升第二区域42对应的显示屏的开孔位置和圆角位置触控的灵敏性。
并且如上，对应显示屏的开孔位置，本发明实施例提供的触控模组于第二区域42无需设置额外的信号耦接线，即无需额外的设置第二区域42与第一区域41的触控单元411耦接的信号耦接线，可以在显示屏的开孔位置做到无边框设计，且由于无需设置信号耦接线，则避免了由于开孔位置的裁切导致面板裂纹，最终导致的局部触控通道断开类触控不良。
图12是本公开实施例提供的一种电子设备的结构示意图。如图12所示，该电子设备可以包括供电组件100，以及如图11所示的触控显示屏000。
该供电组件100可以与触控显示屏000耦接，用于为触控显示屏000供电。
如图1-图9所示，触控模组包括：依次层叠设置的承载层1、第一金属网格层2、绝缘层3、第二金属网格层4以及保护层5。
其中，第二金属网格层4包括第一区域41和第二区域42，第一区域41形成有多个触控单元411，第二区域42形成第一电极421，并于第一电极421中设置虚设电极4211，第一电极421与第二区域42一侧相邻的触控单元411耦接；第一金属网格层2具有第三区域21，第三区域21与第二区域42对应且形状尺寸相同，第三区域21形成第二电极211，第二电极211与第二区域42另一侧相邻的触控单元411通过过孔5耦接；第一电极421与第二电极211形成一触控单元411。
具体的，本实施例三中的触控模组可直接使用上述实施例一提供的触控模组，具体的实现结构可参见上述实施例一中描述的相关内容，此处不再赘述。
本发明技术方案中提供的触控模组，其设置有第一金属网格层2和第二金属网格层4，第二金属网格层4的第一区域41设置的多个触控单元411可以对应于显示屏的表面，用于实现显示屏的主体表面的触控功能，第二区域42可以位于显示屏的圆角处，和/或者第二区域42中设置与显示屏开孔相对的镂空即第二区域42与显示屏的开孔位置相对，这样将第二区域42设置为第一电极421，将与第二区域42相对应的并位于第一金属网格层2的第三区域21设置为第二电极211，则可以保证第一电极421和第二电极211形成的触控单元411能够具有较大的电容信号量，可以提升第二区域42对应的显示屏的开孔位置和圆角位置触控的灵敏性。
并且如上，对应显示屏的开孔位置，本发明实施例提供的触控模组于第二 区域42无需设置额外的信号耦接线，即无需额外的设置第二区域42与第一区域41的触控单元411耦接的信号耦接线，可以在显示屏的开孔位置做到无边框设计，且由于无需设置信号耦接线，则避免了由于开孔位置的裁切导致面板裂纹，最终导致的局部触控通道断开类触控不良。
在此处所提供的说明书中，说明了大量具体细节。然而，能够理解，本公开的实施例可以在没有这些具体细节的情况下实践。在一些实例中，并未详细示出公知的结构和技术，以便不模糊对本说明书的理解。
类似地，应当理解，为了精简本公开并帮助理解各个发明方面中的一个或多个，在上面对本公开的示例性实施例的描述中，本公开的各个特征有时被一起分组到单个实施例、图、或者对其的描述中。然而，并不应将该公开的装置解释成反映如下意图：即所要求保护的本公开要求比在每个权利要求中所明确记载的特征更多的特征。更确切地说，如权利要求书所反映的那样，发明方面在于少于前面公开的单个实施例的所有特征。因此，遵循具体实施方式的权利要求书由此明确地并入该具体实施方式，其中每个权利要求本身都作为本公开的单独实施例。
以上，仅是本公开的可选实施例而已，并非对本公开作任何形式上的限制，依据本公开的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本公开技术方案的范围内。

Claims (20)

  1. 一种触控模组，所述触控模组包括：
    依次层叠设置的承载层、第一金属网格层、绝缘层和第二金属网格层；
    所述第二金属网格层具有第一区域和第二区域，且所述第二金属网格层包括位于所述第一区域中的多个触控单元，以及位于所述第二区域中的第一电极，所述第一电极与所述多个触控单元中的第一触控单元耦接，所述第一触控单元与第二区域的第一侧相邻；
    所述第一金属网格层具有第三区域，所述第三区域在所述承载层上的正投影与所述第二区域在所述承载层上的正投影重叠，所述第一金属网格层包括位于所述第三区域中的第二电极，所述第二电极与所述多个触控单元中的第二触控单元耦接，所述第二触控单元与所述第二区域的另一侧相邻，所述第一电极与所述第二电极用于形成一目标触控单元。
  2. 根据权利要求1所述的触控模组，其中，所述第三区域在所述承载层上的正投影与所述第二区域在所述承载层上的正投影重合。
  3. 根据权利要求1或2所述的触控模组，其中，所述第一侧与所述第二侧为所述第二区域相邻的两侧。
  4. 根据权利要求1至3任一所述的触控模组，其中，所述第一区域中的每个所述触控单元均包括：感应电极和驱动电极；
    所述第一电极与所述第一触控单元中的感应电极和驱动电极中的一个电极耦接，所述第二电极与所述第二触控单元中的感应电极和驱动电极中的另一个电极耦接。
  5. 根据权利要求1至4任一所述的触控模组，其中，所述第一电极在所述承载层上的正投影与所述第二区域在所述承载层上的正投影重合，所述第二电极在所述承载层上的正投影与所述第三区域在所述承载层上的正投影重合。
  6. 根据权利要求1至5任一所述的触控模组，其中，所述第二区域的中部镂空，所述第三区域的中部镂空；
    且，所述第二区域的镂空部分在所述承载层上的正投影和所述第三区域的镂空部分在所述承载层上的正投影重叠。
  7. 根据权利要求6所述的触控模组，其中，所述第二区域的镂空部分在所述承载层上的正投影和所述第三区域的镂空部分在所述承载层上的正投影重合。
  8. 根据权利要求1至7任一所述的触控模组，其中，所述第二区域的尺寸与所述第一区域中的一个所述触控单元所占区域的尺寸相同，且所述第二区域的形状与所述第一区域中的一个所述触控单元所占区域的形状相同。
  9. 根据权利要求8述的触控模组，其中，所述第二金属网格层包括位于所述第二区域中的一个所述第一电极，所述第一金属网格层包括的所述第二电极的数量与所述第二金属网格层包括的所述第一电极的数量相等。
  10. 根据权利要求1至9任一所述的触控模组，其中，所述第二区域的尺寸与所述第一区域中的多个所述触控单元所占区域的尺寸相同，且所述第二区域的形状与所述第一区域中的多个所述触控单元所占区域的形状相同。
  11. 根据权利要求10所述的触控模组，其中，所述第二金属网格层包括位于所述第二区域的一个或多个所述第一电极；
    所述第一金属网格层包括的所述第二电极的数量与所述第二金属网格层包括的所述第一电极的数量相等。
  12. 根据权利要求1至11任一所述的触控模组，其中，所述第二区域具有圆角。
  13. 根据权利要求1至12任一所述的触控模组，其中，所述第二金属网格层还包括：位于所述第一电极上的一个或多个虚设电极。
  14. 根据权利要求1至13任一所述的触控模组，其中，所述承载层的材质为氮化硅或氧化硅；或，所述承载层为透明玻璃层。
  15. 根据权利要求1至14任一所述的触控模组，其中，所述第二电极与所述第二触控单元通过过孔耦接。
  16. 根据权利要求15所述的触控模组，其中，所述过孔的一端位于所述第一金属网格层的两条金属线相交的位置处，所述过孔的另一端位于所述第二金属网格层的两条金属线相交的位置处。
  17. 根据权利要求1至16任一所述的触控模组，其中，所述触控模组还包括：位于所述第二金属网格层远离所述承载层一侧的保护层。
  18. 根据权利要求17所述的触控模组，其中，所述保护层的材质为有机材质。
  19. 一种触控显示屏，其中，所述触控显示屏包括：显示屏，以及如权利要求1-18任一所述的触控模组。
  20. 一种电子设备，其中，所述电子设备包括：供电组件，以及如权利要求19所述的触控显示屏；
    所述供电组件与所述触控显示屏耦接，所述供电组件用于为所述触控显示屏供电。
PCT/CN2021/100956 2020-06-19 2021-06-18 触控模组、触控显示屏及电子设备 WO2021254490A1 (zh)

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