WO2022104654A1 - 触控基板及触控显示装置 - Google Patents

触控基板及触控显示装置 Download PDF

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Publication number
WO2022104654A1
WO2022104654A1 PCT/CN2020/130172 CN2020130172W WO2022104654A1 WO 2022104654 A1 WO2022104654 A1 WO 2022104654A1 CN 2020130172 W CN2020130172 W CN 2020130172W WO 2022104654 A1 WO2022104654 A1 WO 2022104654A1
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WIPO (PCT)
Prior art keywords
touch
electrodes
floating
substrate
electrode
Prior art date
Application number
PCT/CN2020/130172
Other languages
English (en)
French (fr)
Inventor
谢晓冬
何敏
王静
张新秀
桑华煜
徐文结
Original Assignee
京东方科技集团股份有限公司
合肥鑫晟光电科技有限公司
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.)
Filing date
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Application filed by 京东方科技集团股份有限公司, 合肥鑫晟光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to PCT/CN2020/130172 priority Critical patent/WO2022104654A1/zh
Priority to CN202080002879.7A priority patent/CN115039230A/zh
Priority to US18/032,791 priority patent/US20230400950A1/en
Publication of WO2022104654A1 publication Critical patent/WO2022104654A1/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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • G—PHYSICS
    • 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
    • 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
    • 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
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING; 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
    • 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
    • G06F3/0448—Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality
    • 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 technical field of touch display, and in particular, to a touch substrate and a touch display device.
  • the 21st century is an era of information explosion.
  • Various high-tech companies have sprung up like mushrooms after a rain, especially the various electronic products launched by Apple, Samsung, LG and other high-tech companies, which enrich people's lives.
  • the products introduced by these companies are mainly capacitive touch display devices. Since Apple has launched a capacitive touch display device, its excellent touch function makes people flock to it.
  • many touch display devices on the market are following the pace of Apple and launching various touch display devices. With the development of the touch display device, people put forward higher and higher requirements for its optical performance, electrical performance and appearance.
  • an embodiment of the present disclosure provides a touch substrate, including:
  • a plurality of second touch electrodes located on the side of the layer where the first touch electrodes are located away from the base substrate and insulated from the first touch electrodes;
  • each of the floating electrodes has a grid shape, and at least some of the floating electrodes are disconnected at at least part of the mesh points.
  • all the floating electrodes are disconnected at all the mesh points.
  • the distance between the end point of the floating electrode at the disconnection point and the center of the mesh point is the same.
  • the distance from the end point of the floating electrode at the disconnection point to the center of the mesh point is 5 ⁇ m-10 ⁇ m.
  • the grid lines of the floating electrodes between two adjacent disconnected mesh points have the same length.
  • the plurality of floating electrodes include: a plurality of first floating electrodes disposed in the same layer as the first touch electrodes, and A plurality of second floating electrodes disposed on the same layer as the second touch electrodes; wherein,
  • the orthographic projections of the disconnected dots of the plurality of first floating electrodes on the base substrate do not intersect with the orthographic projections of the disconnected dots of the plurality of second floating electrodes on the base substrate stack.
  • the first touch electrodes and the second touch electrodes have a grid shape
  • the first floating electrodes are located between the first touch electrodes and in the grids included in the first touch electrodes; the second floating electrodes are located between the second touch electrodes between, and in the grid included in the second touch electrode;
  • the orthographic projection of the disconnected mesh point of the first floating electrode on the base substrate is located on the mesh included in the second floating electrode. a grid, and an orthographic center area of the grid formed by the second floating electrodes and the second touch electrodes;
  • the orthographic projection of the disconnected mesh point of the second floating electrode on the base substrate is located on the grid included in the first floating electrode, and the first floating electrode and the first touch control The electrodes enclose the central area of the orthographic projection of the grid.
  • the orthographic projection of the disconnected mesh point of the first floating electrode on the base substrate and the disconnected mesh point of the second floating electrode are arranged in an array in the extending direction of the first touch electrodes and in the extending direction of the second touch electrodes.
  • an embodiment of the present disclosure further provides a touch display device, including: a display panel, and the above-mentioned touch substrate on a display side of the display panel.
  • the above touch display device provided by the embodiment of the present disclosure, it further includes: an adhesive layer on the display side of the display panel; wherein the side where the second touch electrodes are located passes through the adhesive layer fixed with the display panel.
  • the display panel includes a color filter substrate, and the color filter substrate and the touch substrate share the base substrate.
  • the display panel includes a plurality of light-emitting devices, and an encapsulation layer located on the light-emitting side of the plurality of light-emitting devices;
  • the encapsulation layer is multiplexed into the base substrate, and the first touch electrodes are located on a side of the encapsulation layer away from the layer where the plurality of light-emitting devices are located.
  • FIG. 1 is a schematic structural diagram of a first touch electrode and a first floating electrode according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of a first touch electrode according to an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of a first floating electrode according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of a second touch electrode and a second floating electrode according to an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of a second touch electrode according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a second floating electrode according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a touch substrate provided by an embodiment of the present disclosure.
  • FIG. 8 is a stack structure diagram of a first touch electrode and a second touch electrode according to an embodiment of the present disclosure
  • FIG. 9 is a stack structure diagram of a first floating electrode and a second floating electrode according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic diagram of a network point hollowing design provided by an embodiment of the present disclosure.
  • Fig. 12 is another schematic diagram of a network point hollowing design provided by an embodiment of the present disclosure.
  • FIG. 13 is another schematic diagram of a network point hollowing design provided by an embodiment of the present disclosure.
  • FIG. 14 is another schematic diagram of a network point hollowing design provided by an embodiment of the present disclosure.
  • FIG. 15 is another schematic diagram of a network point hollowing design provided by an embodiment of the present disclosure.
  • FIG. 16 is another schematic diagram of a network point hollowing design provided by an embodiment of the present disclosure.
  • FIG. 17 is a schematic diagram of a touch display device provided by an embodiment of the present disclosure.
  • FIG. 18 is another schematic diagram of a touch display device provided by an embodiment of the present disclosure.
  • FIG. 19 is another schematic diagram of a touch display device provided by an embodiment of the present disclosure.
  • FIG. 20 is another schematic diagram of a touch display device provided by an embodiment of the present disclosure.
  • the touch display device As an intelligent human-computer interaction interface product, the touch display device has been widely used in social production and life, especially in the field of electronic products (such as smart phones, tablet computers, etc.).
  • touch display device technologies mainly including resistive type, capacitive type, infrared type, surface acoustic wave type, and the like.
  • Capacitive touch display devices have been widely used in social production and life due to the characteristics of sensitive response, multi-touch support, and long life.
  • ITO indium tin oxide
  • In indium
  • Common metal materials are used, such as metal aluminum, copper, silver, etc. The excellent low resistance performance of the metal grid enables it to effectively carry the active pen solution.
  • the width of the grid lines of the metal grid is usually 3 ⁇ m-6 ⁇ m, resulting in larger dots where the grid lines intersect.
  • the resolution (PPI) of the touch display device is high, the dots will be larger.
  • the effect of optical shading on the sub-pixels results in poor black points.
  • the width of the grid lines of the metal grid is 4.5 ⁇ m, the size of the dots at the intersection of the grid lines is about 15 ⁇ m*20 ⁇ m, while the size of the sub-pixels in the high-resolution product is about 22 ⁇ m*66 ⁇ m, so the dots are suitable for The shading effect of the sub-pixels will be very obvious, resulting in a more obvious black spot phenomenon.
  • an embodiment of the present disclosure provides a touch substrate, as shown in FIG. 1 to FIG. 9 , including:
  • the plurality of second touch electrodes 103 are located on the side of the layer where the first touch electrodes 102 are located away from the base substrate 101 and are insulated from the first touch electrodes 102;
  • a plurality of floating electrodes 104, the plurality of floating electrodes 104, the plurality of first touch electrodes 101, the plurality of second touch electrodes 102 are insulated from each other, and the plurality of floating electrodes 104 and the first touch electrodes 101, the At least one of the two touch electrodes 102 is disposed in the same layer; each of the floating electrodes 104 has a grid shape, and at least some of the floating electrodes 104 are disconnected at at least part of the mesh points.
  • the shape of the metal meshes of the first touch electrodes 102 shown in FIG. 2 is different from the shape of the metal meshes of the second touch electrodes 103 shown in FIG.
  • the reflectivity of the touch electrodes 102 is different from the reflectivity of the second touch electrodes 104 , and the difference in reflectivity of different film layers may cause serious defects in erasing.
  • the metal grids of the layer where the first touch electrodes 102 are located and the layer where the second touch electrodes 103 are located can be uniformly distributed, thereby solving the problem of fading caused by uneven distribution of the metal grids.
  • the floating electrodes 104 are used for erasing, and the first touch electrodes 102 and the second touch electrodes 103 are used for touch recognition, in the present disclosure, by disconnecting at least part of the dots of the floating electrodes 104, both It effectively solves the bad black spots caused by too many dots, and ensures the normal use of the touch function.
  • all floating electrodes 104 may be set to be disconnected at all mesh points.
  • the dot shape of the floating electrode 104 is generally a rectangle.
  • the rectangular mesh point may be directly excavated.
  • the distance from the end point of the floating electrode 104 at the disconnection point to the mesh point center O is one-half of the diagonal of the rectangle.
  • the pattern of the floating electrode 104 in the circular area with the dot center O as the center and the distance greater than half of the diagonal of the rectangle as the radius can also be digged out. At this time, it is equivalent to digging Except for the rectangular mesh point and the local mesh lines in its vicinity, the distance from the end point of the floating electrode 104 at the disconnection point to the center O of the mesh point is equal to the radius of the circular area.
  • FIG. 16 respectively show the design drawings of the mesh point hollowing out that the distances from the end point of the floating electrode 104 at the disconnection point to the mesh point center O are 5 ⁇ m, 10 ⁇ m, 15 ⁇ m, 20 ⁇ m, 25 ⁇ m, and 30 ⁇ m.
  • Table 1 presents the results of optical black point improvement grades for 288 resolution products and 410 resolution products for the dot knockout designs shown in Figures 11 to 16 .
  • Lev1 indicates that the black dots cannot be seen
  • Lev2 indicates that the black dots are faintly visible
  • Lev3 indicates that the black dots are clearly visible
  • Lev4 indicates that the black dots are unacceptable. It can be seen from Table 1 that when the distance between the end point of the floating electrode 104 at the disconnection point and the center O of the dot is 5 ⁇ m-10 ⁇ m, it can significantly improve the black spot, and will not bring about bad moiré.
  • the end point is 5 ⁇ m from the center of the dot Lev1.5 Lev2
  • the end point is 10 ⁇ m from the center of the dot Lev2 Lev2.5
  • the end point is 15 ⁇ m from the center of the dot Lev3 and produce faint moiré Lev3 and produce faint moiré
  • the end point is 20 ⁇ m from the center of the dot Lev4 and generate moiré Lev4 and generate moiré
  • the end point is 25 ⁇ m from the center of the dot Lev4 and generate moiré Lev4 and generate moiré
  • the end point is 30 ⁇ m from the center of the dot Lev4 and generate moiré Lev4 and generate moiré
  • the grid lines of the floating electrodes 104 between two adjacent disconnected dots have the same length, so as to better improve the metal grid elimination.
  • the plurality of floating electrodes 104 may include: A first floating electrode 1041, and a plurality of second floating electrodes 1042 disposed on the same layer as the second touch electrodes 103; wherein, the disconnection points of the plurality of first floating electrodes 1041 are on the base substrate 101.
  • the orthographic projection and the orthographic projection of the disconnected dots of the plurality of second floating electrodes 1042 on the base substrate 101 do not overlap each other.
  • the first touch electrodes and the second touch electrodes have a grid shape, as shown in FIG. 2 and FIG. 5 ; the first floating electrodes 1041 are located in each Between the first touch electrodes 102 and in the grids included in the first touch electrodes 102, as shown in FIG. 1; the second floating electrodes 1042 are located between the second touch electrodes 103 and the second touch electrodes The grids included in the electrode 103 are shown in FIG.
  • the grids included in the first floating electrodes, the grids enclosed between the first floating electrodes and the first touch electrodes, and the grids included in the second floating electrodes are approximately the same, as shown in FIG. 1 and FIG. 4 .
  • the grids of the layer where the first touch electrodes 102 and the first floating electrodes 1041 are located, and the grids of the layer where the second touch electrodes 103 and the second floating electrodes 1042 are located can be uniformly and periodically distributed in an effective manner. in the touch area (as shown in Figure 7), so as to improve the fading effect.
  • the orthographic projection of the disconnected dots of the first floating electrode 1041 on the base substrate 101 may be It is located in the grid included in the second floating electrode 1042, and the center area of the orthographic projection of the grid surrounded by the second floating electrode 1042 and the second touch electrode 103; the disconnected mesh point of the second floating electrode 1042 is on the base substrate
  • the orthographic projection on 101 may be located in the grid included in the first floating electrode 102 and the central area of the orthographic projection of the grid surrounded by the first floating electrode 102 and the first touch electrodes 1041 .
  • the orthographic projection of the disconnected dots of the first floating electrodes 1041 on the base substrate 101 and the orthographic projection of the disconnected dots of the second floating electrodes 1042 may be in the extending direction of the first touch electrodes 102 and the second The two touch electrodes 103 are arranged in an array along the extending direction.
  • the first touch electrodes 102 may be touch sensing electrodes (Rx) extending in the longitudinal direction, and the first touch electrodes 102 and The first floating electrodes 1041 are disconnected; as shown in FIG. 4 , the second touch electrodes 103 may be touch driving electrodes (Tx) extending in the lateral direction, and the second touch electrodes 103 and the second floating electrodes 1042 are disconnected Open settings. It should be understood that, the larger the floating area where the first floating electrode 1041 and the second floating electrode 1042 are located, the more dots that can be excavated, and the black spot defect can be improved more effectively.
  • the disconnection between the first touch electrode 102 and the first floating electrode 1041, and the second touch electrode 103 and the second floating electrode can be set
  • the length of the disconnection between 1042 should be as short as possible.
  • the lengths and numbers of broken lines on the grid lines can be set to be equal.
  • the broken lines on the same grid can be related to The center of the grid is symmetrically distributed.
  • the lengths and numbers of broken lines on the grid lines can be set to be equal, and it is preferable that the broken lines on the same grid are symmetrical with respect to the center of the grid. distributed.
  • an embodiment of the present disclosure further provides a touch display device including the above-mentioned touch substrate provided by an embodiment of the present disclosure.
  • the principle of solving the problem of the touch display device is similar to that of the aforementioned touch substrate. Therefore, the implementation of the touch display device can refer to the implementation of the aforementioned touch substrate, and the repetition will not be repeated here.
  • an embodiment of the present disclosure further provides a touch display device, as shown in FIG. 17 and FIG. 18 , including: the touch substrate 01 and the display panel 02 , wherein the touch substrate 01 is located on the display panel 02 . side.
  • the display panel 02 may include: a plurality of pixel units arranged in an array in the display area.
  • Each pixel unit includes a plurality of sub-pixels.
  • the pixel unit may include red sub-pixels, green sub-pixels and blue sub-pixels, so that red, green and blue colors can be mixed to realize color display.
  • the pixel unit may also include red sub-pixels, green sub-pixels, blue sub-pixels and white sub-pixels, so that red, green, blue and white colors can be mixed to realize color display.
  • the emission colors of the sub-pixels in the pixel unit can be designed and determined according to the actual application environment, which is not limited here.
  • the display panel 02 may be a liquid crystal display panel, and in this case, the sub-pixels may include pixel electrodes on the array substrate and thin film transistors (Thin Film Transistor, TFT) electrically connected to the pixel electrodes.
  • TFT Thin Film Transistor
  • gate lines for transmitting gate scan signals and data lines for transmitting data signals are also arranged on the array substrate. In this way, the gate scanning signal is input to the TFT through the gate line to control the conduction of the TFT, so that the data signal transmitted on the data line is input into the pixel electrode, so that the pixel electrode input voltage, and then drive the liquid crystal molecules to rotate to display the image.
  • the display panel 02 may also be an electroluminescent display panel such as an organic light emitting display panel, a quantum dot light emitting diode or a micro light emitting diode display panel.
  • the sub-pixel may include an electroluminescent diode and a driving circuit for driving the electroluminescent diode to emit light.
  • the electroluminescent diode includes an anode, a light-emitting layer and a cathode; the driving circuit may include a driving transistor, a switching transistor and a storage capacitor, and its specific structure and working principle may be the same as those in the prior art, which will not be repeated here.
  • the side where the second touch electrodes 103 are located may be fixed to the display panel 02 through the adhesive layer 03 , as shown in FIG. 17 .
  • the touch substrate 01 is hung on the display side of the display panel 02 .
  • the touch substrate 01 is embedded in the display panel 02 , as shown in FIG. 18 and FIG. 19 .
  • FIG. 17 specifically shows that the display panel 02 is a liquid crystal display panel, including an array substrate 201 , a color filter substrate 203 having a black matrix 202 and a polarizer 204 .
  • the touch substrate 01 may further include a light shielding layer 104 distributed around the effective touch area, and a first insulating layer 106 and a second insulating layer 107 disposed on the entire layer.
  • FIG. 18 shows that the color filter substrate 203 of the liquid crystal display panel shares the base substrate 101 with the touch substrate 01 , and the touch display device further includes a protective cover 04 .
  • the electroluminescent display panel may further include a driving backplane 207 .
  • the touch display device provided by the embodiment of the present disclosure may be a mobile phone with a full screen as shown in FIG. 20 .
  • the touch display device provided by the embodiments of the present disclosure may also be any product or component with a display function, such as a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, and a navigator.
  • a display function such as a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, and a navigator.
  • Other essential components of the touch display device should be understood by those of ordinary skill in the art, and will not be repeated here, nor should it be regarded as a limitation of the present disclosure.
  • the touch display device shown in FIG. 17 can be fabricated through the following steps:
  • the light shielding layer 105 is formed on the edge region of the base substrate 101 .
  • the first touch electrodes 102 and the first floating electrodes 1041 disposed in the same layer are formed on the side of the light shielding layer 105 away from the base substrate 101 .
  • the first touch electrodes 102 and the first floating electrodes 1041 are disconnected from each other, and the mesh points of the first floating electrodes 1041 are disconnected.
  • the first insulating layer 106 is formed on the layer where the first touch electrodes 102 and the first floating electrodes 1041 are located.
  • the second touch electrodes 103 and the second floating electrodes 1042 disposed in the same layer are formed on the side of the first insulating layer 106 away from the base substrate 101 .
  • the second touch electrodes 102 and the second floating electrodes 1041 are disconnected from each other, and the mesh points of the second floating electrodes 1041 are disconnected.
  • a second insulating layer 107 is formed on the layer where the second touch electrodes 103 and the second floating electrodes 1042 are located.
  • the sixth step is to fabricate the display panel 02 .
  • the fabrication process of the display panel 02 is the same as that in the prior art, and will not be repeated here.
  • the adhesive layer 03 is used to fix the second insulating layer 107 and the polarizer 204 contained in the display panel 02 together.
  • the touch display device shown in FIG. 18 can be fabricated through the following steps:
  • the display panel 02 including the array substrate 201 and the color filter substrate 203 is fabricated by using the fabrication steps in the related art.
  • the second touch electrodes 103 and the second floating electrodes 1042 disposed in the same layer are fabricated on the side of the color filter substrate 203 away from the array substrate 201 .
  • the second touch electrodes 103 and the second floating electrodes 1042 are disconnected from each other, and the mesh points of the second floating electrodes 1042 are disconnected.
  • the first insulating layer 106 is formed on the layer where the second touch electrodes 103 and the second floating electrodes 1042 are located.
  • the first touch electrodes 102 and the first floating electrodes 1041 disposed in the same layer are formed on the side of the first insulating layer 106 away from the base substrate 101 .
  • the first touch electrodes 102 and the first floating electrodes 1041 are disconnected from each other, and the mesh points of the first floating electrodes 1041 are disconnected.
  • the second insulating layer 107 is formed on the layer where the first touch electrodes 102 and the first floating electrodes 1041 are located.
  • the sixth step is to attach the polarizer 204 on the second insulating layer 107 , and use the adhesive layer 03 to fix the polarizer 204 and the protective cover plate 04 together.
  • the patterning process involved in forming each layer structure may not only include deposition, photoresist coating, mask masking, exposure, development, etching, Part or all of the photoresist stripping and other process processes may also include other process processes, which are specifically subject to the desired patterning pattern formed in the actual manufacturing process, which is not limited here.
  • a post-bake process may also be included after development and before etching.
  • the deposition process can be chemical vapor deposition, plasma enhanced chemical vapor deposition or physical vapor deposition, which is not limited here;
  • the mask used in the mask process can be a half tone mask (Half Tone Mask). ), a single slit diffraction mask (Single Slit Mask) or a gray tone mask (Gray Tone Mask), which is not limited here;
  • the etching can be dry etching or wet etching, which is not limited here.
  • “same layer arrangement” refers to a layer structure formed by using the same film forming process to form a film layer for making a specific pattern, and then using the same mask to form a layer structure through one patterning process. That is, one patterning process corresponds to one mask (mask, also called photomask).
  • a patterning process may include multiple exposure, display or etching processes, and the specific patterns in the formed layer structure may be continuous or discontinuous, and these specific patterns may also be at different heights Or have different thicknesses.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Position Input By Displaying (AREA)

Abstract

一种触控基板（01）及触控显示装置，包括：衬底基板（101）；多条第一触控电极（102），位于衬底基板（101）之上；多条第二触控电极（103），位于第一触控电极（102）所在层背离衬底基板（101）的一侧且与第一触控电极（102）相互绝缘；多条浮空电极（104），多条浮空电极（104）与多条第一触控电极（102）、多条第二触控电极（103）相互绝缘，并且多条浮空电极（104）与第一触控电极（102）、第二触控电极（103）中至少之一同层设置；各浮空电极（104）具有网格状，至少部分浮空电极（104）在至少部分网点处断开设置。

Description

触控基板及触控显示装置 技术领域
本公开涉及触控显示技术领域，尤其涉及一种触控基板及触控显示装置。
背景技术
21世纪是一个信息爆炸的年代，各种高新技术如雨后春笋般快速发展，尤其是苹果，三星，LG等高科技公司推出的各式各样的电子产品，丰富了人们的生活。这些公司推出的产品主要是电容式触控显示装置。由于苹果公司推出了电容式的触控显示装置，其优异的触控功能，使得人们对它趋之若鹜。目前市场上很多的触控显示装置都是紧跟苹果的步伐，推出各式各样的触控显示装置。随着触控显示装置的发展，人们对其光学性能，电学性能，外观都提出越来越高的要求。
发明内容
一方面，本公开实施例提供了一种触控基板，包括：
衬底基板；
多条第一触控电极，位于所述衬底基板之上；
多条第二触控电极，位于所述第一触控电极所在层背离所述衬底基板的一侧且与所述第一触控电极相互绝缘；
多条浮空电极，所述多条浮空电极与所述多条第一触控电极、所述多条第二触控电极相互绝缘，并且多条所述浮空电极与所述第一触控电极、所述第二触控电极中至少之一同层设置；各所述浮空电极具有网格状，至少部分所述浮空电极在至少部分网点处断开设置。
可选地，在本公开实施例提供的上述触控基板中，全部所述浮空电极在全部网点处断开设置。
可选地，在本公开实施例提供的上述触控基板中，所述浮空电极在断开 处的端点到网点中心的距离相同。
可选地，在本公开实施例提供的上述触控基板中，所述浮空电极在断开处的端点到网点中心的距离为5μm-10μm。
可选地，在本公开实施例提供的上述触控基板中，所述浮空电极在相邻两个断开网点之间的网格线长度相同。
可选地，在本公开实施例提供的上述触控基板中，所述多条浮空电极包括：与所述第一触控电极同层设置的多条第一浮空电极，以及与所述第二触控电极同层设置的多条第二浮空电极；其中，
所述多条第一浮空电极的断开网点在所述衬底基板上的正投影与所述多条第二浮空电极的断开网点在所述衬底基板上的正投影互不交叠。
可选地，在本公开实施例提供的上述触控基板中，所述第一触控电极和所述第二触控电极具有网格状；
所述第一浮空电极位于各所述第一触控电极之间、及所述第一触控电极所含网格内；所述第二浮空电极位于各所述第二触控电极之间、及所述第二触控电极所含网格内；
所述第一浮空电极所含网格，所述第一浮空电极与所述第一触控电极之间围成的网格，所述第二浮空电极所含网格，以及所述第二浮空电极与所述第二触控电极之间围成的网格的形状和尺寸大致相同。
可选地，在本公开实施例提供的上述触控基板中，所述第一浮空电极的断开网点在所述衬底基板上的正投影，位于所述第二浮空电极所含网格、及所述第二浮空电极与所述第二触控电极围成网格的正投影中心区域；
所述第二浮空电极的断开网点在所述衬底基板上的正投影，位于所述第一浮空电极所含网格、及所述第一浮空电极与所述第一触控电极围成网格的正投影中心区域。
可选地，在本公开实施例提供的上述触控基板中，所述第一浮空电极的断开网点在所述衬底基板上的正投影与所述第二浮空电极的断开网点的正投影，在所述第一触控电极的延伸方向上及所述第二触控电极的延伸方向上呈 阵列排布。
另一方面，本公开实施例还提供了一种触控显示装置，包括：显示面板，以及位于所述显示面板显示侧的上述触控基板。
可选地，在本公开实施例提供的上述触控显示装置中，还包括：位于所述显示面板显示侧的胶粘层；其中，所述第二触控电极所在侧通过所述胶粘层与所述显示面板相固定。
可选地，在本公开实施例提供的上述触控显示装置中，所述显示面板包括彩膜基板，所述彩膜基板与所述触控基板共用所述衬底基板。
可选地，在本公开实施例提供的上述触控显示装置中，所述显示面板包括多个发光器件，以及位于所述多个发光器件出光侧的封装层；其中，
所述封装层复用为所述衬底基板，所述第一触控电极位于所述封装层背离所述多个发光器件所在层的一侧。
附图说明
图1为本公开实施例提供的第一触控电极与第一浮空电极的结构示意图；
图2为本公开实施例提供的第一触控电极的结构示意图；
图3为本公开实施例提供的第一浮空电极的结构示意图；
图4为本公开实施例提供的第二触控电极与第二浮空电极的结构示意图；
图5为本公开实施例提供的第二触控电极的结构示意图；
图6为本公开实施例提供的第二浮空电极的结构示意图；
图7为本公开实施例提供的触控基板的结构示意图；
图8为本公开实施例提供的第一触控电极与第二触控电极的叠层结构图；
图9为本公开实施例提供的第一浮空电极与第二浮空电极的叠层结构图；
图10为相关技术中网格的放大结构示意图；
图11为本公开实施例提供的网点挖空设计的一种示意图；
图12为本公开实施例提供的网点挖空设计的又一种示意图；
图13为本公开实施例提供的网点挖空设计的又一种示意图；
图14为本公开实施例提供的网点挖空设计的又一种示意图；
图15为本公开实施例提供的网点挖空设计的又一种示意图；
图16为本公开实施例提供的网点挖空设计的又一种示意图；
图17为本公开实施例提供的触控显示装置的一种示意图；
图18为本公开实施例提供的触控显示装置的又一种示意图；
图19为本公开实施例提供的触控显示装置的又一种示意图；
图20为本公开实施例提供的触控显示装置的又一种示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。需要注意的是，附图中各图形的尺寸和形状不反映真实比例，目的只是示意说明本公开内容。并且自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。并且在不冲突的情况下，本公开中的实施例及实施例中的特征可以相互组合。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
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。“内”、“外”、“上”、“下”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。
触控显示装置作为一种智能化的人机交互界面产品，已经在社会生产和生活中应用范围越来越广泛，尤其在电子产品领域(如智能手机、平板电脑等领域)中发展最为迅速。触控显示装置技术种类繁多，主要包括电阻式、电容式、红外式、表声波式等。基于反应灵敏、支持多点触控、寿命长等特性，电容式触控显示装置已广泛应用于社会生产和生活中。
随着触控显示装置的大量使用，氧化铟锡(ITO)这种光学和电学都非常优异的材料被过度使用，由于铟(In)元素为稀有金属，因此此种材料只会越来越少，并且价格越来越贵。在这种情况下，人们慢慢开始寻找新的材料来取代氧化铟锡材料，但是性能却不输氧化铟锡材料，采用金属网格(Metal Mesh)的触控显示装置就应运而生，其使用的是常见金属材料，比如金属铝、铜、银等。金属网格优异的低电阻性能，使得其能够有效地搭载主动笔的方案。
在触控显示装置中，金属网格的网格线宽度通常在3μm-6μm，致使网格线相交处的网点较大，当此触控显示装置的分辨率(PPI)较高时，网点会对子像素产生光学遮挡的效应，而导致黑点不良。示例性地，当金属网格的网格线宽度为4.5μm时，网格线相交处的网点大小在15μm*20μm左右，而高分辨率产品中子像素的尺寸约22μm*66μm，因此网点对于子像素的遮光效果会非常明显，从而会产生较明显的黑点现象。
针对相关技术中存在的上述问题，本公开实施例提供一种触控基板，如图1至图9所示，包括：
衬底基板101；
多条第一触控电极102，位于衬底基板101之上；
多条第二触控电极103，位于第一触控电极102所在层背离衬底基板101的一侧且与第一触控电极102相互绝缘；
多条浮空电极104，多条浮空电极104与多条第一触控电极101、多条第二触控电极102相互绝缘，并且多条浮空电极与104第一触控电极101、第二触控电极102中至少之一同层设置；各浮空电极104具有网格状，至少部分浮空电极104在至少部分网点处断开设置。
在本公开实施例提供的上述触控基板中，图2所示第一触控电极102的金属网格形状与图4所示第二触控电极103的金属网格形状不同，致使各第一触控电极102的反射率与第二触控电极104的反射率不同，而不同膜层的反射率差异会造成严重的消影不良。通过设置浮空电极104可以使得第一触控电极102所在层、第二触控电极103所在层的金属网格均匀分布，进而解决金属网格分布不均匀造成的消影问题。由于浮空电极104用于消影，第一触控电极102和第二触控电极103用于触控识别，因此，在本公开中通过将至少部分浮空电极104的网点断开设置，既有效解决了网点过多造成的黑点不良，又保证了触控功能的正常使用。
可选地，在本公开实施例提供的上述触控基板中，为了更好地改善黑点不良，可以设置全部浮空电极104在全部网点处断开。
如图10所示，相关技术中浮空电极104的网点形状一般为矩形。基于此，在本公开实施例提供的上述触控基板中，为了有效断开网点处的网格线，如图11所示，可以设置浮空电极104在断开处的端点到网点中心O的距离相同。在一些实施例中，可以直接挖除矩形网点，此时，浮空电极104在断开处的端点到网点中心O的距离为矩形对角线的二分之一。在另一些实施例中，还可以挖除以网点中心O为圆心，大于矩形对角线的二分之一的距离为半径的圆形区域内浮空电极104的图案，此时，相当于挖除了矩形网点及其附近的局部网格线，浮空电极104在断开处的端点到网点中心O的距离等于圆形区域的半径。
图11至图16分别给出了浮空电极104在断开处的端点至网点中心O的距离依次为5μm、10μm、15μm、20μm、25μm、30μm的网点挖空设计图。表1给出了图11至图16的网点挖空设计对288分辨率产品和410分辨率产品的光学黑点改善等级结果。表1中Lev1表示黑点无法看见，Lev2表示黑点隐约可见，Lev3表示黑点明显可见，Lev4表示黑点无法接受。由表1可见，浮空电极104在断开处的端点到网点中心O的距离为5μm-10μm时，其对黑点有明显的改善效果，并且不会带来摩尔纹不良。
表1
网点设计 PPI：288 PPI：410
正常网点 Lev2.5 Lev3
端点距网点中心5μm Lev1.5 Lev2
端点距网点中心10μm Lev2 Lev2.5
端点距网点中心15μm Lev3并产生微弱摩尔纹 Lev3并产生微弱摩尔纹
端点距网点中心20μm Lev4并产生摩尔纹 Lev4并产生摩尔纹
端点距网点中心25μm Lev4并产生摩尔纹 Lev4并产生摩尔纹
端点距网点中心30μm Lev4并产生摩尔纹 Lev4并产生摩尔纹
可选地，在本公开实施例提供的上述触控基板中，浮空电极104在相邻两个断开网点之间的网格线长度相同，以更好地改善金属网格消影。
可选地，在本公开实施例提供的上述触控基板中，如图1、图4和图9所示，多条浮空电极104可以包括：与第一触控电极102同层设置的多条第一浮空电极1041，以及与第二触控电极103同层设置的多条第二浮空电极1042；其中，多条第一浮空电极1041的断开网点在衬底基板101上的正投影与多条第二浮空电极1042的断开网点在衬底基板101上的正投影互不交叠。
可选地，在本公开实施例提供的上述触控基板中，第一触控电极和第二触控电极具有网格状，如图2和图5所示；第一浮空电极1041位于各第一触控电极102之间、及第一触控电极102所含网格内，如图1所示；第二浮空电极1042位于各第二触控电极103之间、及第二触控电极103所含网格内，如图4所示；第一浮空电极所含网格，第一浮空电极与第一触控电极之间围成的网格，第二浮空电极所含网格，以及第二浮空电极与第二触控电极之间围成的网格的形状和尺寸大致相同，如图1和图4所示。这样可以使第一触控电极102与第一浮空电极1041所在层的网格、以及第二触控电极103与第二浮空电极1042所在层的网格均匀的呈周期性的分布于有效触控区中(如图7所示)，从而提高消影效果。
需要说明的是，在本公开中大致相同可以理解为完全相同，也可以理解 为在工艺条件的限制或其他因素造成的误差允许范围内的相同，在此不做具体限定。
可选地，在本公开实施例提供的上述触控基板中，如图7所示，为了保证消影效果，第一浮空电极1041的断开网点在衬底基板101上的正投影，可以位于第二浮空电极1042所含网格、及第二浮空电极1042与第二触控电极103围成网格的正投影中心区域；第二浮空电极1042的断开网点在衬底基板101上的正投影，可以位于第一浮空电极102所含网格、及第一浮空电极102与第一触控电极1041围成网格的正投影中心区域。另外，第一浮空电极1041的断开网点在衬底基板101上的正投影与第二浮空电极1042的断开网点的正投影，可以在第一触控电极102的延伸方向上及第二触控电极103的延伸方向上呈阵列排布。
可选地，在本公开实施例提供的上述触控基板中，如图1所示，第一触控电极102可以为沿纵向延伸触控感应电极(Rx)，并且第一触控电极102与第一浮空电极1041断开设置；如图4所示，第二触控电极103可以为沿横向延伸触控驱动电极(Tx)，并且第二触控电极103与第二浮空电极1042断开设置。应当理解的是，第一浮空电极1041与第二浮空电极1042所在浮空区域越大，可被挖除的网点越多，则可更有效地改善黑点不良。因此，在具体实施时，为了使得浮空区域面积较大，可以设置第一触控电极102与第一浮空电极1041之间的断线、以及第二触控电极103与第二浮空电极1042之间的断线的长度尽量短。另外，为了使得第一触控电极102所含每条网格线的电阻值相近，可以设置网格线上的断线长度相等、数量相同，较佳地，同一网格上的断线可以关于该网格中心对称分布。同样为了使得第二触控电极103所含每条网格线的电阻值相近，可以设置网格线上的断线长度相等、数量相同，优选同一网格上的断线关于该网格中心对称分布。
基于同一发明构思，本公开实施例还提供了一种触控显示装置，包括本公开实施例提供的上述触控基板。该触控显示装置解决问题的原理与前述触控基板相似，因此该触控显示装置的实施可以参见前述触控基板的实施，重 复之处在此不再赘述。
具体地，本公开实施例还提供的一种触控显示装置，如图17和图18所示，包括：上述触控基板01和显示面板02，其中上述触控基板01位于显示面板02的显示侧。
具体地，显示面板02可以包括：位于显示区中阵列排布的多个像素单元。每个像素单元包括多个子像素。示例性地，像素单元可以包括红色子像素，绿色子像素以及蓝色子像素，这样可以通过红绿蓝进行混色，以实现彩色显示。或者，像素单元也可以包括红色子像素，绿色子像素、蓝色子像素以及白色子像素，这样可以通过红绿蓝白进行混色，以实现彩色显示。当然，在实际应用中，像素单元中的子像素的发光颜色可以根据实际应用环境来设计确定，在此不作限定。
在一些实施例中，该显示面板02可以为液晶显示面板，此时，子像素可以包括位于阵列基板上的像素电极以及与像素电极电连接的薄膜晶体管(Thin Film Transistor，TFT)。当然，阵列基板上还会设置传输栅极扫描信号的栅线与传输数据信号的数据线。这样通过栅线向TFT输入栅极扫描信号，以控制TFT导通，从而将数据线上传输的数据信号输入到像素电极中，使像素电极输入电压，进而驱动液晶分子旋转以显示图像。
在另一些实施例中，显示面板02还可以为有机发光显示面板、量子点发光二极管或微发光二极管显示面板等电致发光显示面板。此时，子像素可以包括电致发光二极管以及用于驱动电致发光二极管发光的驱动电路。其中，电致发光二极管包括阳极、发光层和阴极；驱动电路可以包括驱动晶体管、开关晶体管和存储电容，其具体结构和工作原理可以与现有技术中的相同，在此不作赘述。
可选地，在本公开实施例提供的上述触控显示装置中，第二触控电极103所在侧可以通过胶粘层03与显示面板02相固定，如图17所示。换言之，触控基板01外挂在显示面板02的显示侧。或者，触控基板01内嵌于显示面板02内，如图18和图19所示。
具体地，图17中具体示出了显示面板02为液晶显示面板，包括阵列基板201、具有黑矩阵202的彩膜基板203以及偏光片204。另外，触控基板01还可以包括分布在有效触控区周围的遮光层104，以及整层设置的第一绝缘层106和第二绝缘层107。图18示出了液晶显示面板的彩膜基板203与触控基板01共用衬底基板101，触控显示装置还包括保护盖板04。图19示出了电致发光显示面板的封装层205复用为触控基板01的衬底基板101，第一触控电极102位于封装层205背离电致发光显示面板所含多个发光器件206所在层的一侧。另外，电致发光显示面板还可以包括驱动背板207。
在具体实施时，本公开实施例提供的触控显示装置可以为图20所示的全面屏的手机。当然，本公开实施例提供的触控显示装置可也以为：平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。对于该触控显示装置的其它必不可少的组成部分均为本领域的普通技术人员应该理解具有的，在此不做赘述，也不应作为对本公开的限制。
针对图17所示触控显示装置，可以通过以下步骤进行制作：
第一步，在衬底基板101的边缘区域制作遮光层105。
第二步，在遮光层105背离衬底基板101的一侧制作同层设置的第一触控电极102及第一浮空电极1041。其中，第一触控电极102与第一浮空电极1041之间相互断开，且第一浮空电极1041的网点处断开设置。
第三步，在第一触控电极102及第一浮空电极1041所在层上制作第一绝缘层106。
第四步，在第一绝缘层106背离衬底基板101的一侧制作同层设置的第二触控电极103及第二浮空电极1042。其中，第二触控电极102与第二浮空电极1041之间相互断开，且第二浮空电极1041的网点处断开设置。
第五步，在第二触控电极103及第二浮空电极1042所在层上制作第二绝缘层107。
第六步，制作显示面板02，该显示面板02的制作过程与现有技术相同，在此不再赘述。
第七步，采用胶粘层03将第二绝缘层107与显示面板02所含偏光片204固定在一起。
至此完成了图17所示触控显示装置的制作。
针对图18所示触控显示装置，可以通过以下步骤进行制作：
第一步，采用相关技术中的制作步骤制作包括阵列基板201和彩膜基板203的显示面板02。
第二步，在彩膜基板203背离阵列基板201的一侧制作同层设置的第二触控电极103及第二浮空电极1042。其中，第二触控电极103与第二浮空电极1042之间相互断开，且第二浮空电极1042的网点处断开设置。
第三步，在第二触控电极103及第二浮空电极1042所在层上制作第一绝缘层106。
第四步，在第一绝缘层106背离衬底基板101的一侧制作同层设置的第一触控电极102及第一浮空电极1041。其中，第一触控电极102与第一浮空电极1041之间相互断开，且第一浮空电极1041的网点处断开设置。
第五步，在第一触控电极102及第一浮空电极1041所在层上制作第二绝缘层107。
第六步，在第二绝缘层107上贴附偏光片204，并采用胶粘层03将偏光片204与保护盖板04固定在一起。
至此完成了图18所示触控显示装置的制作。
需要说明的是，在本发明实施例提供的上述制作方法中，形成各层结构涉及到的构图工艺，不仅可以包括沉积、光刻胶涂覆、掩模板掩模、曝光、显影、刻蚀、光刻胶剥离等部分或全部的工艺过程，还可以包括其他工艺过程，具体以实际制作过程中形成所需构图的图形为准，在此不做限定。例如，在显影之后和刻蚀之前还可以包括后烘工艺。
其中，沉积工艺可以为化学气相沉积法、等离子体增强化学气相沉积法或物理气相沉积法，在此不做限定；掩膜工艺中所用的掩膜板可以为半色调掩膜板(Half Tone Mask)、单缝衍射掩模板(Single Slit Mask)或灰色调掩模板 (Gray Tone Mask)，在此不做限定；刻蚀可以为干法刻蚀或者湿法刻蚀，在此不做限定。
另外，应该理解的是，在本公开中，“同层设置”指的是采用同一成膜工艺形成用于制作特定图形的膜层，然后利用同一掩模板通过一次构图工艺形成的层结构。即一次构图工艺对应一道掩模板(mask，也称光罩)。根据特定图形的不同，一次构图工艺可能包括多次曝光、显或刻蚀工艺，而形成的层结构中的特定图形可以是连续的也可以是不连续的，这些特定图形还可能处于不同的高度或者具有不同的厚度。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明实施例的精神和范围。这样，倘若本发明实施例的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (13)

  1. 一种触控基板，其中，包括：
    衬底基板；
    多条第一触控电极，位于所述衬底基板之上；
    多条第二触控电极，位于所述第一触控电极所在层背离所述衬底基板的一侧且与所述第一触控电极相互绝缘；
    多条浮空电极，所述多条浮空电极与所述多条第一触控电极、所述多条第二触控电极相互绝缘，并且多条所述浮空电极与所述第一触控电极、所述第二触控电极中至少之一同层设置；各所述浮空电极具有网格状，至少部分所述浮空电极在至少部分网点处断开设置。
  2. 如权利要求1所述的触控基板，其中，全部所述浮空电极在全部网点处断开设置。
  3. 如权利要求1所述的触控基板，其中，所述浮空电极在断开处的端点到网点中心的距离相同。
  4. 如权利要求3所述的触控基板，其中，所述浮空电极在断开处的端点到网点中心的距离为5μm-10μm。
  5. 如权利要求1所述的触控基板，其中，所述浮空电极在相邻两个断开网点之间的网格线长度相同。
  6. 如权利要求1所述的触控基板，其中，所述多条浮空电极包括：与所述第一触控电极同层设置的多条第一浮空电极，以及与所述第二触控电极同层设置的多条第二浮空电极；其中，
    所述多条第一浮空电极的断开网点在所述衬底基板上的正投影与所述多条第二浮空电极的断开网点在所述衬底基板上的正投影互不交叠。
  7. 如权利要求6所述的触控基板，其中，所述第一触控电极和所述第二触控电极具有网格状；
    所述第一浮空电极位于各所述第一触控电极之间、及所述第一触控电极 所含网格内；所述第二浮空电极位于各所述第二触控电极之间、及所述第二触控电极所含网格内；
    所述第一浮空电极所含网格，所述第一浮空电极与所述第一触控电极之间围成的网格，所述第二浮空电极所含网格，以及所述第二浮空电极与所述第二触控电极之间围成的网格的形状和尺寸大致相同。
  8. 如权利要求7所述的触控基板，其中，所述第一浮空电极的断开网点在所述衬底基板上的正投影，位于所述第二浮空电极所含网格、及所述第二浮空电极与所述第二触控电极围成网格的正投影中心区域；
    所述第二浮空电极的断开网点在所述衬底基板上的正投影，位于所述第一浮空电极所含网格、及所述第一浮空电极与所述第一触控电极围成网格的正投影中心区域。
  9. 如权利要求8所述的触控基板，其中，所述第一浮空电极的断开网点在所述衬底基板上的正投影与所述第二浮空电极的断开网点的正投影，在所述第一触控电极的延伸方向上及所述第二触控电极的延伸方向上呈阵列排布。
  10. 一种触控显示装置，其中，包括：显示面板，以及位于所述显示面板显示侧的如权利要求1-9任一项所述的触控基板。
  11. 如权利要求10所述的触控显示装置，其中，还包括：位于所述显示面板显示侧的胶粘层；其中，所述第二触控电极所在侧通过所述胶粘层与所述显示面板相固定。
  12. 如权利要求10所述的触控显示装置，其中，所述显示面板包括彩膜基板，所述彩膜基板与所述触控基板共用所述衬底基板。
  13. 如权利要求10所述的触控显示装置，其中，所述显示面板包括多个发光器件，以及位于所述多个发光器件出光侧的封装层；其中，
    所述封装层复用为所述衬底基板，所述第一触控电极位于所述封装层背离所述多个发光器件所在层的一侧。
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CN111651094A (zh) * 2020-06-29 2020-09-11 合肥鑫晟光电科技有限公司 触控基板及触控显示装置
CN111694466A (zh) * 2020-06-30 2020-09-22 武汉华星光电半导体显示技术有限公司 触控显示屏及电子装置

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