WO2024088356A1 - 触控面板及显示装置 - Google Patents

触控面板及显示装置 Download PDF

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Publication number
WO2024088356A1
WO2024088356A1 PCT/CN2023/126924 CN2023126924W WO2024088356A1 WO 2024088356 A1 WO2024088356 A1 WO 2024088356A1 CN 2023126924 W CN2023126924 W CN 2023126924W WO 2024088356 A1 WO2024088356 A1 WO 2024088356A1
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WO
WIPO (PCT)
Prior art keywords
electrode
touch
touch control
electrodes
along
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2023/126924
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English (en)
French (fr)
Inventor
贺兴龙
何坤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yungu Guan Technology Co Ltd
Visionox Technology Inc
Original Assignee
Yungu Guan Technology Co Ltd
Visionox Technology Inc
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
Publication date
Priority claimed from CN202211330324.2A external-priority patent/CN115509392B/zh
Priority claimed from CN202211362044.XA external-priority patent/CN116088712A/zh
Application filed by Yungu Guan Technology Co Ltd, Visionox Technology Inc filed Critical Yungu Guan Technology Co Ltd
Publication of WO2024088356A1 publication Critical patent/WO2024088356A1/zh
Priority to US19/186,628 priority Critical patent/US20250251837A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0448—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 OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04112—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 application relates to the field of display technology, and in particular to a touch panel and a display device.
  • Capacitive touch panels are widely used in various electronic interactive scene devices due to their durability, long life and support for multi-touch.
  • the working principle of capacitive touch panel is based on detecting the fluctuation of coupling capacitance between touch electrodes to sense touch action.
  • Coupling capacitance includes proximal capacitance and distal capacitance.
  • the change of dielectric constant of capacitive touch panel has a greater impact on proximal capacitance and a smaller impact on distal capacitance.
  • the touch position absorbs the temperature of the finger, causing the dielectric constant to change, resulting in a large fluctuation in the proximal capacitance, which in turn affects the detection accuracy of the coupling capacitance of the touch electrode, causing the capacitive touch panel to easily have problems such as poor touch and random point reporting.
  • the touch panel and display device provided in the embodiments of the present application can reduce the influence of the change of the dielectric constant on the coupling capacitance of the touch electrode, improve the accuracy of coupling capacitance detection, and avoid the situation where the touch panel display has poor touch performance and random point reporting.
  • a first aspect of an embodiment of the present application provides a touch panel, comprising a substrate and a plurality of touch units; the plurality of touch units are arranged in an array on the substrate, and each of the touch units comprises a first touch electrode and at least one second touch electrode that are insulated from each other; in the same touch unit, an isolation gap is provided between the first touch electrode and the second touch electrode, and a floating electrode is arranged in at least part of the isolation gap, and the floating electrode is insulated from the first touch electrode and the second touch electrode, respectively.
  • the touch panel provided in the embodiment of the present application has a touch unit including a first touch electrode and a second touch electrode which are insulated from each other, and a floating electrode is arranged in an isolation gap between the first touch electrode and the second touch electrode, and the floating electrode is insulated from the first touch electrode and the second touch electrode respectively. In this way, the gap between the first touch electrode and the second touch electrode can be increased.
  • the gap between the first touch electrode and the second touch electrode is small, so the first touch electrode and the second touch electrode are The proximal capacitance between the touch electrodes is larger, while the distal capacitance is smaller.
  • the proximal capacitance fluctuates greatly due to the temperature change, causing the coupling capacitance of the entire touch panel to have a larger waveguide due to temperature changes, affecting the detection accuracy of the coupling capacitance of the touch electrodes, thereby affecting the normal operation of the touch panel.
  • the touch panel provided in the embodiment of the present application has an isolation gap between the first touch electrode and the second touch electrode, which is used to increase the distance between the first touch electrode and the second touch electrode, thereby reducing the proximal capacitance between the first touch electrode and the second touch electrode and increasing the distal capacitance. Therefore, the fluctuation of the proximal capacitance caused by temperature change can be reduced, so that the touch function of the touch panel is less affected by the temperature change, avoiding the touch failure and random point reporting of the display touch panel, and ensuring the normal operation of the touch panel.
  • the embodiment of the present application increases the isolation gap between the first touch electrode and the second touch electrode, and sets the floating electrode in the isolation gap.
  • the shielding effect of the floating electrode further reduces the proximal capacitance between the first touch electrode and the second touch electrode.
  • the floating electrode can also provide a uniform visual effect for the isolation gap, thereby preventing the larger isolation gap from being visible to the naked eye, thereby improving the display uniformity effect.
  • the second aspect of an embodiment of the present application provides a display device, comprising the touch panel described in the first aspect, that is, the display device comprises the above-mentioned touch unit.
  • the use of the touch unit can ensure the stability of the touch function of the display device under conditions of large temperature difference, improve user experience, and increase product market competitiveness.
  • FIG1 is a schematic diagram showing the principle of a capacitive touch panel in the prior art
  • FIG2 is a schematic diagram of electrode distribution of a touch control unit in the prior art
  • FIG3 is a top view of a touch panel provided in Embodiment 1 of the present application.
  • FIG4 is a schematic diagram of the electrode arrangement of the touch control unit provided in the first embodiment of the present application.
  • FIG5 is an enlarged schematic diagram of point A in FIG4 ;
  • FIG. 6 is a schematic diagram of the boundary between a first touch electrode and a second touch electrode located in the same touch unit provided in the first embodiment of the present application;
  • FIG. 7 is a schematic diagram of the arrangement of the floating electrode between the first touch electrode and the second touch electrode provided in the first embodiment of the present application;
  • FIG8 is a schematic diagram of the electrode arrangement of a touch control unit provided in the second embodiment of the present application.
  • FIG9 is a schematic structural diagram of the first touch electrode in FIG8 ;
  • FIG10 is a schematic diagram of the structure of the second touch electrode in FIG8 ;
  • FIG11 is an enlarged schematic diagram of the electrode overlap portion in FIG10;
  • FIG. 12 is a schematic diagram showing some dimensions of the touch electrodes in FIG. 8 .
  • 110 - first touch electrode 110a - first electrode region; 110b - second electrode region;
  • the touch panel in the related technology is prone to problems such as poor touch and random point reporting.
  • the applicant has found through research that the reason for this problem is that the working principle of the capacitive touch screen is based on detecting the coupling capacitance fluctuation between the touch electrodes to sense the touch action.
  • the touch control unit 10 includes a first touch control electrode 110 , a second touch control electrode 120 and a floating electrode 130 (Dummy electrode).
  • the first touch control electrode 110 , the second touch control electrode 120 and the floating electrode 130 are insulated from each other.
  • the floating electrode 130 is disposed in the hole area of the first touch control electrode 110 and the hole area of the second touch control electrode 120 .
  • the coupling capacitor Cm is mainly composed of the proximal capacitor Cm1 and the distal capacitor Cm2, wherein the proximal capacitor Cm1 is generated between the first touch electrode 110 and the second touch electrode 120 which are closer, such as point A1 and point A2 in FIG2 ; the distal capacitor Cm2 is generated between the first touch electrode 110 and the second touch electrode 120 which are farther away, such as point A3 and point A4 in FIG2 . Since the dielectric constant of the capacitive touch panel is more sensitive to temperature changes, a slight change in the dielectric constant will cause a large fluctuation in the proximal capacitance, while having little effect on the distal capacitance.
  • the dielectric of the far-end capacitor is mainly the air outside the screen
  • the dielectric of the near-end capacitor is mainly the screen material.
  • the temperature of the screen material changes. After the finger leaves the screen, the temperature of the screen material cannot be restored immediately, causing the dielectric coefficient of the near-end capacitor to be greatly affected by temperature.
  • the temperature difference has a positive effect on touch and will not cause touch problems.
  • the temperature of the original touched position will not recover immediately.
  • the proximal capacitance is still smaller than before the touch, which causes the original touch position to still respond to the touch action after the finger is lifted, thereby affecting the accuracy of the coupling capacitance detection between the touch electrodes, and the touch panel is prone to random point reporting.
  • the finger touching the screen has two superimposed effects on the coupling capacitance, among which On the one hand, when the finger is close to the screen, the coupling capacitance can be reduced. On the other hand, the touched position absorbs the heat of the finger, causing the temperature of the touched position to rise, thereby increasing the dielectric coefficient of the screen material and increasing the proximal capacitance. In this case, the temperature difference has an opposite effect on the touch. When the proximal capacitance caused by the temperature difference is greater than or equal to the capacitance decrease caused by the finger touch, it will cause the touch to be unresponsive.
  • the temperature change causes the dielectric constant of the screen material to change, resulting in large fluctuations in the proximal capacitance, which affects the accuracy of the coupling capacitance detection between the touch electrodes, making the touch panel prone to touch failure and random reporting.
  • the embodiments of the present application provide a touch panel and a display device, in which an isolation gap is provided between a first touch electrode and a second touch electrode, and a floating electrode is provided in the isolation gap, so as to increase the distance between the first touch electrode and the second touch electrode, thereby reducing the proximal capacitance between the first touch electrode and the second touch electrode and increasing the distal capacitance.
  • the shielding effect of the floating electrode further reduces the proximal capacitance between the first touch electrode and the second touch electrode.
  • This arrangement can reduce the fluctuation of the proximal capacitance caused by temperature changes, so that the touch function of the touch panel is less affected by temperature changes, avoiding the touch failure and random point reporting of the touch panel, and ensuring the normal operation of the touch panel.
  • the display device provided in the embodiment of the present application includes a touch panel, a display screen, an optical adhesive layer and a cover plate, wherein the touch panel is arranged on the light emitting side of the display screen, an optical adhesive layer is arranged between the cover plate and the touch panel, and the cover plate and the touch panel are bonded together by the optical adhesive layer.
  • the touch panel 100 provided in the embodiment of the present application includes a substrate and a plurality of touch control units 10 disposed on the substrate, and the plurality of touch control units 10 are arranged in an array on the substrate.
  • the X direction shown in Fig. 3 is a first direction
  • the Y direction shown is a second direction.
  • the touch control unit 10 provided in the embodiment of the present application includes a first touch control electrode 110 and at least one second touch control electrode 120 which are insulated from each other, wherein the first touch control electrode 110 and the second touch control electrode 120 may be arranged in the same layer or in different layers, the first touch control electrode 110 may be a driving electrode, and the second touch control electrode 120 may be a sensing electrode; or, the first touch control electrode 110 may be a sensing electrode, and the second touch control electrode 120 may be a driving electrode; the embodiment of the present application is not limited to this.
  • a floating electrode 130 is disposed in at least part of the isolation gap.
  • a floating electrode 130 is disposed in the isolation gap between the first touch electrode 110 and the second touch electrode 120, and the floating electrode 130 is disposed in the same layer as at least one of the first touch electrode 110 and the second touch electrode 120.
  • the floating electrode 130 is disposed in the same layer as the first touch electrode 110 and the second touch electrode 120.
  • the isolation gap between the first touch electrode 110 and the second touch electrode 120, and the two side edges of the isolation gap form boundaries 50 with the first touch electrode 110 and the second touch electrode 120 respectively, that is, the first touch electrode 110 and the second touch electrode 120 are insulated by the isolation gap.
  • the floating electrode 130 is disposed in the isolation gap, and the extension direction of the floating electrode 130 is consistent with the extension direction of the boundary 50, that is, the floating electrode 130 is disposed parallel to the boundary 50. Along the extension direction perpendicular to the boundary 50, the floating electrode 130 maintains an insulation gap greater than or equal to 5 ⁇ m and less than or equal to 10 ⁇ m with the first touch electrode 110 and the second touch electrode 120. By providing the insulation gap, the floating electrode 130 is insulated from the first touch electrode 110 and the second touch electrode 120.
  • the width of the floating electrode 130 may be greater than or equal to 80 ⁇ m and less than or equal to 120 ⁇ m along the extension direction perpendicular to the boundary 50.
  • the width of the floating electrode 130 may be greater than or equal to 80 ⁇ m and less than or equal to 120 ⁇ m along the extension direction perpendicular to the boundary 50.
  • the embodiment of the present application can significantly increase the distance between the first touch electrode 110 and the second touch electrode 120 by setting an isolation gap between the first touch electrode 110 and the second touch electrode 120, and reduce the proximal capacitance.
  • the floating electrode 130 can also play a role in uniform visual effect on the isolation gap, avoiding the large isolation gap from being visible to the naked eye, thereby improving the display uniformity effect.
  • the shielding effect of the floating electrode 130 the proximal capacitance between the first touch electrode 110 and the second touch electrode 120 is further reduced.
  • an insulating gap of 5 ⁇ m to 10 ⁇ m is maintained between the first touch electrode 110 and the second touch electrode 120, resulting in a larger proximal capacitance and a smaller distal capacitance between the first touch electrode 110 and the second touch electrode 120.
  • the proximal capacitance is greatly affected by the temperature change, resulting in a larger waveguide of the coupling capacitance of the entire touch panel 100 due to temperature changes, affecting the detection accuracy of the coupling capacitance of the touch electrodes, thereby affecting the normal operation of the touch panel 100.
  • the touch panel 100 provided in the embodiment of the present application has an isolation gap between the first touch electrode 110 and the second touch electrode 120, which increases the distance between the first touch electrode 110 and the second touch electrode 120, thereby reducing the proximal capacitance between the first touch electrode 110 and the second touch electrode 120 and increasing the distal capacitance.
  • the shielding effect of the floating electrode 130 further reduces the proximal capacitance between the first touch electrode 110 and the second touch electrode 120. Therefore, the fluctuation of the proximal capacitance caused by temperature change can be reduced, so that the touch function of the touch panel 100 is less affected by the temperature change, and the touch panel 100 is prevented from having touch failure and random point reporting, thereby ensuring the normal operation of the touch panel 100.
  • the floating electrode 130 may be disposed only in at least a portion of the area between the first touch electrode 110 and the second touch electrode 120. Compared with the related art, not digging a hole area in the first touch electrode 110 and the second touch electrode 120 for disposing the floating electrode 130 can increase the remote capacitance and ensure that the overall coupling capacitance Cm induction amount does not change much when touching.
  • the ratio of the adjacent sides between the first touch electrode 110 and the second touch electrode 120 is related to the proximal capacitance, wherein the ratio of the adjacent sides refers to the ratio of the adjacent side lengths to the total side lengths of the touch electrodes.
  • the ratio of the adjacent sides between the first touch electrode 110 and the second touch electrode 120 is large, the proximal capacitance is also large, and the variation of the coupling capacitance Cm caused by the temperature difference is also large, which easily causes touch failure.
  • the shape of each touch electrode of the touch control unit is changed accordingly to reduce the proportion of the adjacent sides of the first touch control electrode 110 and the second touch control electrode 120, thereby reducing the proximal capacitance.
  • the touch control unit has touch control electrodes of different shapes. The following describes in detail the arrangement schemes of different touch electrodes in the touch control unit in different embodiments.
  • each touch control unit 10 includes two second touch control electrodes 120 arranged along a first direction and a first touch control electrode 110 arranged along a second direction, and along the first direction, the first touch control electrode 110 is disposed between the two second touch control electrodes 120 .
  • the two second touch electrodes 120 are respectively disposed on both sides of the first touch electrode 110 , that is, the second touch electrodes 120 are arranged along the first direction X on both sides of the first touch electrode 110 .
  • the first touch electrode 110 includes a first electrode region 110a and two second electrode regions 110b, wherein along the second direction Y, the two second electrode regions 110b are respectively located on both sides of the first electrode region 110a, that is, the first electrode region 110a is arranged between the two second electrode regions 110b.
  • the first direction X intersects with the second direction Y, for example, the first direction X is perpendicular to the second direction Y.
  • the first touch electrode 110 is funnel-shaped.
  • a floating electrode 130 is disposed in the isolation gap between the first electrode region 110a and the second touch electrode 120, and/or a floating electrode 130 is disposed in the isolation gap between the second electrode region 110b and the second touch electrode 120.
  • a floating electrode 130 is disposed in the isolation gap between the first electrode region 110a and the second electrode region 110b and the second touch electrode 120.
  • isolation gaps are respectively set in the boundary areas of the first electrode region 110a, the second electrode region 110b and the second touch electrode 120, and the above-mentioned floating electrode 130 is set in the isolation gap, and the floating electrode 130 and the second touch electrode 120 maintain a certain insulation gap so that the floating electrode is insulated from the first touch electrode 110.
  • the size of the first electrode region 110a in the first direction X first increases and then decreases; and along the direction in which the second electrode region 110b points to the first electrode region 110a, the size of the second electrode region 110b in the first direction X gradually decreases.
  • the first electrode region 110a in the embodiment of the present application is in a rhombus, circular or elliptical shape
  • the second electrode region 110b is in a triangular shape, which is not limited in the embodiment of the present application.
  • the embodiment of the present application is described by taking the first electrode region 110a in a rhombus shape and the second electrode region 110b in a triangular shape as an example.
  • two second electrode regions 110b located in the same touch control unit 10 are symmetrically arranged on both sides of the first electrode region 110a.
  • the first electrode region 110a is rhombus-shaped, and the second electrode region 110b is located on one side of the first electrode region 110a and is triangular, and the first electrode region 110a and the second electrode region 110b are connected; then the second touch control electrode 120, the first touch control electrode 110 and the two side edges of the isolation gap respectively form an M-shaped boundary 50.
  • the second touch control electrode 120 is M-shaped.
  • the M-shaped boundary 50 formed by the second touch electrode 120 and the isolation gap includes a first boundary 151, a second boundary 152, a third boundary 153 and a fourth boundary 154 sequentially connected along the second direction.
  • the second boundary 152 and the third boundary 153 are opposite to the first electrode region 110a through the isolation gap;
  • the first boundary 151 and the fourth boundary 154 are opposite to the two second electrode regions 110b through the isolation gap.
  • the orthographic projection of the edge contour of the first electrode region 110a on the substrate is a rhombus, that is, the first electrode region 110a is a rhombus region.
  • the first electrode region 110a is a rhombus region.
  • two sides of the first electrode region 110a on the same side are opposite to the second boundary 152 and the third boundary 153 via an isolation gap.
  • the orthographic projection of the second electrode region 110b on the substrate is a triangle, that is, the second electrode region 110b is a triangular region.
  • the hypotenuse of the second electrode region 110b located on one side of the first electrode region 110a is opposite to the first boundary 151 in the M-shaped boundary 50 through the isolation gap; the hypotenuse of the second electrode region 110b located on the other side of the first electrode region 110a is opposite to the fourth boundary 154 in the M-shaped boundary 50 through the isolation gap.
  • the M-shaped boundary formed by the second touch electrode 120, the first touch electrode 110 and the edge of the isolation gap can reduce the coupling area between the second touch electrode 120 and the first touch electrode 110, thereby reducing the proximal capacitance of the second touch electrode 120 and the first touch electrode 110, so as to reduce the influence of temperature changes on the normal operation of the touch panel 100.
  • a bridge (bridging member) 140 connecting the two second touch control electrodes 120 is disposed at the connection point between the first electrode region 110a and the second electrode region 110b.
  • two bridges 140 are disposed between the two second touch control electrodes 120, and each bridge 140 is disposed between mutually adjacent vertices of the M-shaped boundary 50 of the two second touch control electrodes 120, and both ends of each bridge 140 are respectively connected to the two second touch control electrodes 120, that is, the two second touch control electrodes 120 are bridged by the bridge 140.
  • a first vertex 155 is formed between the first boundary 151 and the second boundary 152
  • a second vertex 156 is formed between the third boundary 153 and the fourth boundary 154.
  • two second touch electrodes 120 located in the same touch control unit 10 are symmetrically arranged on both sides of the first touch control electrode 110.
  • the two second touch control electrodes 120 are symmetrically arranged with respect to the first touch control electrode 110, and an M-shaped boundary 50 is formed on one side of the two second touch control electrodes 120 facing the first touch control electrode 110.
  • a bridge 140 is arranged between first vertices 155 of the M-shaped boundaries of the two second touch control electrodes 120 that are opposite to each other along the first direction X, and a bridge 140 is arranged between second vertices 156 of the M-shaped boundaries of the two second touch control electrodes 120 that are opposite to each other along the first direction X.
  • one bridge 140 is arranged between the two first vertices 155, another bridge 140 is arranged between the two second vertices 156, and both ends of each bridge 140 are connected to the two second touch control electrodes 120, respectively.
  • one of the bridges 140 can be disposed at the connection between the first electrode region 110a and the second electrode region 110b on one side thereof, and the other bridge 140 can be disposed at the connection between the second electrode region 110b and the second electrode region 110b on the other side thereof.
  • the two second touch electrodes 120 are connected via the two bridges 140, which can reduce the resistance between the second touch electrodes 120.
  • the touch panel 100 may include an underlying metal layer, an insulating layer (for example, an optical adhesive layer) and a patterned metal layer, wherein the bridge 140 may be formed on the underlying metal layer, the second touch electrode 120 and the first touch electrode 110 may be formed on the patterned metal layer, the patterned metal layer is located above the underlying metal layer, the insulating layer is provided with a through hole at the bridging position, and the patterned metal layer and the underlying metal layer are connected through the conductive structure in the through hole, thereby completing the bridging.
  • the bridge 140 may be formed on the underlying metal layer
  • the second touch electrode 120 and the first touch electrode 110 may be formed on the patterned metal layer
  • the patterned metal layer is located above the underlying metal layer
  • the insulating layer is provided with a through hole at the bridging position
  • the patterned metal layer and the underlying metal layer are connected through the conductive structure in the through hole, thereby completing the bridging.
  • each second touch control electrode 120 can be a grid electrode, and/or each first touch control electrode 110 can be a grid electrode, and/or each floating electrode 130 can be a grid electrode to avoid blocking the display light-emitting unit of the display screen and affecting the display.
  • the mesh sizes of the second touch control electrode 120, the first touch control electrode 110 and the floating electrode 130 can be the same or different.
  • the length e of the bridge 140 in the embodiment of the present application in the first direction may be greater than or equal to 200 ⁇ m and less than or equal to 300 ⁇ m, which can avoid the interval between the two second touch electrodes 120 being too small, thereby increasing the proximal capacitance between the second touch electrode 120 and the first touch electrode 110; furthermore, it can avoid the connection area between the first electrode region 110a and the second electrode region 110b being too small, thereby increasing the connection area between the first electrode region 110a and the second electrode region 110b.
  • a floating electrode 130 between a first touch electrode 110 and at least one second touch electrode 120 includes a plurality of sub-electrodes 131, and the plurality of sub-electrodes 131 are arranged sequentially and at intervals along the extension direction of the boundary 50.
  • the floating electrode 130 is arranged along the extension direction of the M-shaped boundary 50 , and the floating electrode 130 includes a plurality of sub-electrodes 131 .
  • the M-shaped boundary 50 includes four continuous boundaries, which are a first boundary 151 , a second boundary 152 , a third boundary 153 and a fourth boundary 154 .
  • the floating electrode 130 includes four sub-electrodes 131 , each of which is arranged along the extension direction of each boundary, and two adjacent sub-electrodes 131 may be disconnected at the vertex of the boundary, that is, two adjacent sub-electrodes 131 are disconnected to maintain a gap.
  • the floating electrode 130 is configured as a plurality of sub-electrodes 131.
  • each sub-electrode 131 has a smaller effect on the proximal capacitance between the second touch electrode 120 and the first touch electrode 110, thereby improving the accuracy of coupling capacitance detection of the touch panel 100.
  • the first boundary 151, the second boundary 152, the third boundary 153 and the fourth boundary 154 are respectively configured as straight line segments, and a sub-electrode 131 is respectively disposed on one side of each boundary, and each sub-electrode 131 is configured as a straight line electrode, that is, the orthographic projection of each boundary on the substrate is a line segment, and accordingly, each sub-electrode 131 of the floating electrode 130 is configured as a straight line electrode with a certain width. Further, each sub-electrode 131 maintains a certain insulation gap with the second touch electrode 120 and the first touch electrode 110.
  • the boundary edges in the embodiment of the present application are configured as straight line segments, which can reduce the coupling area between the second touch electrode 120 and the first touch electrode 110, thereby reducing the proximal capacitance of the second touch electrode 120 and the first touch electrode 110, thereby reducing the impact of temperature changes on the normal operation of the touch panel 100.
  • each of the above-mentioned sub-electrodes 131 can be a straight-line wire arranged in the insulating gap to form a straight-line electrode; for example, the sub-electrode 131 can be a metal straight line.
  • each of the above-mentioned sub-electrodes 131 can be a grid-shaped wire arranged in the isolation gap to form a grid-shaped electrode, for example, the sub-electrode 131 can be a grid-shaped metal wire, and in this way, the sub-electrode 131 and the second touch electrode 120 and the first touch electrode 110 are all in a grid shape, which is convenient for manufacturing.
  • the ratio L1/L2 of the extension length L1 of each touch unit 10 in the first direction to the extension length L2 of the touch unit 10 in the second direction is greater than or equal to 0.95 and less than or equal to 1.05, that is, the extension length L1 of the touch unit 10 in the first direction X (the maximum dimension in the first direction X) is almost equal to the extension length L2 of the touch unit 10 in the second direction Y (the maximum dimension in the second direction Y).
  • the touch unit 10 may be rectangular, for example, a square.
  • the length L3 of the first electrode region 110a is greater than or equal to 0.6L1 and less than or equal to 0.7L1.
  • L1 is the extension length of the touch unit 10 in the first direction X.
  • L2 is the extension length of the touch unit 10 in the second direction Y.
  • the length L4 of the first electrode region 110a is equal to 0.5L2.
  • the orthographic projection area of all the second touch electrodes 120 on the substrate is greater than or equal to 45% of the area of the entire touch unit 10 , and less than or equal to 55% of the area of the entire touch unit 10 .
  • the orthographic projection area of the first touch control electrode 110 on the substrate is greater than or equal to 35% of the area of the entire touch control unit 10 , and less than or equal to 45% of the area of the entire touch control unit 10 .
  • the orthographic projection area of all floating electrodes on the substrate is greater than or equal to 7% of the area of the entire touch control unit 10 , and less than or equal to 10% of the area of the entire touch control unit 10 .
  • the first electrode region 110a has a larger area to avoid the situation where the first electrode region 110a is too small, resulting in the first touch electrode 110 being unable to sense and affecting the balance of the entire remote capacitance when the user touches the first electrode region 110a with his finger when operating the touch panel 100, thereby affecting the normal operation of the touch panel 100.
  • the first touch electrode 110 and the second touch electrode 120 are both in an I-shape.
  • the adjacent edges of the first touch electrode 110 and the second touch electrode 120 provided in the present embodiment are smaller in proportion, the proximal capacitance is smaller, and the change in the coupling capacitance Cm caused by the temperature difference is also smaller, which is beneficial to improving the stability of the touch function in high and low temperature environments.
  • the area where the touch unit 10 is located is a rectangular area, and the ratio between the length of the touch unit 10 along the first direction and the width of the touch unit 10 along the second direction is between 0.95 and 1.05.
  • the length of the touch unit 10 along the first direction is equal to the width of the touch unit 10 along the second direction.
  • the touch linearity of the touch panel formed by the touch unit 10 in the first direction and the second direction can be basically consistent, thereby ensuring that different position areas of the touch panel have basically the same touch sensitivity.
  • the first touch electrode 110 includes a first electrode end 1101, a first electrode middle portion 1102, an electrode connecting portion 1103, a second electrode middle portion 1104, and a second electrode end 1105 that are sequentially connected along the second direction.
  • the length d1 of the first electrode end 1101 in the first direction is greater than the length d2 of the first electrode middle portion 1102 in the first direction
  • the length d2 of the first electrode middle portion 1102 in the first direction is greater than the length d3 of the electrode connecting portion 1103 in the first direction
  • the length d4 of the second electrode end 1105 in the first direction is greater than the length d5 of the second electrode middle portion 1104 in the first direction
  • the length d5 of the second electrode middle portion 1104 in the first direction is greater than the length d3 of the electrode connecting portion 1103 in the first direction.
  • the second touch electrode 120 includes a third electrode end 1201, a third electrode middle portion 1202, an electrode overlap portion 1203, a fourth electrode middle portion 1204, and a fourth electrode end 1205, which are sequentially connected along the first direction.
  • the width D1 of the third electrode end 1201 in the second direction is greater than the width D2 of the third electrode middle portion 1202 in the second direction
  • the width D2 of the third electrode middle portion 1202 in the second direction is greater than the width D3 of the electrode overlap portion 1203 in the second direction
  • the width D4 of the fourth electrode end 1205 in the second direction is greater than the width D5 of the fourth electrode middle portion 1204 in the second direction
  • the width D5 of the fourth electrode middle portion 1204 in the second direction is greater than the width D3 of the electrode overlap portion 1203 in the second direction.
  • the first touch electrode 110 is symmetrical with respect to the geometric center O of the via electrode connection portion 1103 and along the straight line L5 in the first direction.
  • the length d4 of the middle portion 1102 of the first electrode in the first direction is equal to the length d2 of the middle portion 1102 of the second electrode in the first direction is equal to the length d5 of the middle portion 1104 of the second electrode in the first direction.
  • the second touch electrode 120 is symmetrical with respect to the geometric center O of the via electrode connecting portion 1103 and along the straight line L6 in the second direction.
  • the width D1 of the third electrode end portion 1201 in the second direction is equal to the width D4 of the fourth electrode end portion 1205 in the second direction
  • the width D2 of the third electrode middle portion 1202 in the second direction is equal to the width D5 of the fourth electrode middle portion 1204 in the second direction.
  • the electrode overlap portion 1203 may include a first electrode overlap portion 12031, a second electrode overlap portion 12032, and a bridge 12033 for connecting the first electrode overlap portion 12031 and the second electrode overlap portion 12032, located on opposite sides of the electrode connection portion 1103, and the bridge 12033 and the electrode connection portion 1103 are located in different metal layers.
  • the bridge 12033 may include a plurality of parallel metal wires, and preferably, the bridge 12033 may include 4 parallel metal wires. The use of a plurality of parallel metal wires to connect the first electrode overlap portion 12031 and the second electrode overlap portion 12032 can reduce the bridge impedance.
  • the length d2 of the middle portion 1102 of the first electrode in the first direction is 0.4 to 0.6 times the length a of the touch unit
  • the length d6 of the portion adjacent to the middle portion 1102 of the first electrode and the middle portion 1202 of the third electrode in the first direction is 0.1 to 0.15 times the length a of the touch unit
  • the length d7 of the portion adjacent to the middle portion 1102 of the first electrode and the middle portion 1204 of the fourth electrode in the first direction is 0.1 to 0.15 times the length a of the touch unit.
  • the width D2 of the middle portion 1202 of the third electrode in the second direction is 0.16 to 0.3 times the width b of the touch unit 10
  • the width D6 of the portion of the third electrode end 1201 adjacent to the middle portion 1102 of the first electrode in the second direction is 0.3 to 0.4 times the width b of the touch unit
  • the width D7 of the portion of the third electrode end 1201 adjacent to the middle portion 1104 of the second electrode in the second direction is 0.3 to 0.4 times the width b of the touch unit 10.
  • the above-designed dimensions can make the first touch electrode 110 and the second touch electrode 120 have a larger electrode area, thereby ensuring sufficient electrode sensing.
  • the length d1 of the first electrode end 1101 in the first direction is 0.8 to 0.85 times the length a of the touch unit
  • the width D1 of the third electrode end 1201 in the second direction is 0.76 to 0.9 times the width b of the touch unit.
  • the electrode end designed above has a larger size, so that adjacent touch units 10 can be fully contacted when connected through the electrode end, thereby reducing the connection impedance of adjacent touch units.
  • the area of the first touch electrode 110 accounts for 38% to 43% of the area of the touch unit 10
  • the area of the second touch electrode 120 accounts for 50% to 55% of the area of the touch unit 10
  • the area of the floating electrode 130 accounts for 8% to 11% of the area of the touch unit 10.
  • the line width of the floating electrode 130 can be 110 um to 150 um.
  • the first touch electrodes 110 may be touch sensing electrodes
  • the second touch electrodes 120 may be touch driving electrodes.
  • the line width of the electrode connecting portion 1103 and the electrode overlapping portion 1203 is relatively narrow, if a floating electrode 130 is set in the area where the electrode connecting portion 1103 and the electrode overlapping portion 1203 are located, the wiring space of the electrode connecting portion 1103 and the electrode overlapping portion 1203 will inevitably be further compressed, and the connection impedance of this area will increase. For this reason, in this embodiment, there may be no floating electrode 130 distributed between the electrode connecting portion 1103 and the electrode overlapping portion 1203, and the gap width between the electrode connecting portion 1103 and the electrode overlapping portion 1203 may be 0.1 to 0.15 times the length a of the touch control unit 10.
  • the touch control unit provided in the embodiment of the present application includes a first touch control electrode, a second touch control electrode and a floating electrode which are insulated from each other.
  • the floating electrode is arranged in at least a part of the area between the first touch control electrode and the second touch control electrode, so that the distance between the adjacent first touch control electrode and the second touch control electrode can be increased, thereby reducing the distance between the first touch control electrode and the second touch control electrode.
  • the dielectric constant caused by temperature difference mainly affects the proximal capacitance. Reducing the proximal capacitance can weaken the change of coupling capacitance caused by temperature difference, thereby improving the stability of touch function in high and low temperature environments.
  • the touch panel provided in the embodiment of the present application includes the above-mentioned touch unit.
  • the use of the touch unit described above can ensure the stability of the touch function of the touch panel under conditions of large temperature difference, improve user experience, and increase product market competitiveness.

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Abstract

本申请提供一种触控面板及显示装置，涉及显示技术领域，用于解决触控面板容易出现触摸不灵、乱报点的技术问题，该所述触控面板包括基板及多个触控单元；多个所述触控单元呈阵列排布在所述基板上，每个所述触控单元包括相互绝缘的第一触控电极和至少一个第二触控电极；同一所述触控单元中，所述第一触控电极和所述第二触控电极之间具有隔离间隙，至少部分所述隔离间隙内设置有浮置电极，所述浮置电极分别与所述第一触控电极和所述第二触控电极绝缘。本申请提供的触控面板及显示装置用于实现触控及显示功能。

Description

触控面板及显示装置
本申请要求于2022年10月27日提交中国专利局、申请号为202211330324.2、申请名称为“触控面板及显示装置”及2022年11月2日提交中国专利局、申请号为202211362044.X、申请名称为“触控单元及触控面板”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，尤其涉及一种触控面板及显示装置。
背景技术
电容式触控面板因其具有耐久性、寿命长以及支持多点触控的优点，因而被广泛应用于各种电子交互场景设备中。
电容式触控面板的工作原理基于检测触控电极之间的耦合电容波动，以感测触控动作。耦合电容包括近端电容和远端电容，由于电容式触控面板的介电系数变化对近端电容影响较大，而对远端电容影响较小。
当用户触控动作结束时，触控位置因吸收手指的温度而引起介电系数变化导致近端电容波动较大，进而影响触控电极的耦合电容的检测准确性，导致电容式触控面板容易出现触摸不灵、乱报点的问题。
发明内容
鉴于上述问题，本申请实施例提供的触控面板及显示装置，其能够降低介电系数变化对触控电极的耦合电容的影响，提升耦合电容检测准确性，以避免显示触控面板出现触摸不灵、乱报点的情况。
为了实现上述目的，本申请实施例提供如下技术方案：
本申请实施例的第一方面提供一种触控面板，包括基板及多个触控单元；多个所述触控单元呈阵列排布在所述基板上，每个所述触控单元包括相互绝缘的第一触控电极和至少一个第二触控电极；同一所述触控单元中，所述第一触控电极和所述第二触控电极之间具有隔离间隙，至少部分所述隔离间隙内设置有浮置电极，所述浮置电极分别与所述第一触控电极和所述第二触控电极绝缘。
本申请实施例提供的触控面板，其触控单元包括相互绝缘的第一触控电极、第二触控电极，位于第一触控电极与第二触控电极之间的隔离间隙内设置有浮置电极，且浮置电极分别与第一触控电极和第二触控电极绝缘。如此设置，可增大第一触控电极和第二触控电极之间的间隙。
相关技术中第一触控电极、第二触控电极之间的间隙较小，因此第一触控电极和第二 触控电极之间的近端电容较大，远端电容较小，当触控面板的介电系数受温度变化时，近端电容受温度变化其波动较大，导致整个触控面板的耦合电容因温度变化其波导较大，影响触控电极的耦合电容检测准确性，从而影响触控面板的正常工作。
然而，本申请实施例提供的触控面板，其在第一触控电极和第二触控电极之间设置有隔离间隙，用于增大第一触控电极和第二触控电极之间的间距，从而降低第一触控电极和第二触控电极之间的近端电容，增大了远端电容。因此可降低因温度变化导致的近端电容的波动，以使触控面板的触控功能受温度变化影响较小，避免显示触控面板出现触摸不灵、乱报点的情况，保证触控面板正常工作。
进一步地，本申请实施例在增大第一触控电极和第二触控电极之间的隔离间隙的同时，将浮置电极设置在隔离间隙内，通过浮置电极的屏蔽作用，进一步减小第一触控电极和第二触控电极之间的近端电容；以及浮置电极能够对隔离间隙起到均匀视觉效果的功能，避免较大的隔离间隙被肉眼可视，从而提升显示均一性效果。
本申请实施例第二方面提供了一种显示装置，包括第一方面所述的触控面板，即该显示装置包括上述触控单元，采用触控单元可以确保显示装置在较大温差条件下的触控功能稳定性，提升用户体验，增大产品市场竞争力。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术中电容式触控面板的原理示意图；
图2为现有技术中触控单元的电极分布示意图；
图3为本申请实施例一提供的触控面板的俯视图；
图4为本申请实施例一提供的触控单元的电极布置示意图；
图5为图4中A处放大示意图；
图6为本申请实施例一提供的位于同一个触控单元的第一触控电极、第二触控电极的边界示意图；
图7为本申请实施例一提供的浮置电极在第一触控电极和第二触控电极之间的布置示意图；
图8为本申请实施例二提供的触控单元的电极布置示意图；
图9为图8中第一触控电极的结构示意图；
图10为图8中第二触控电极的结构示意图；
图11为图10中电极搭接部的放大示意图；
图12为图8中触控电极的部分尺寸标注示意图。
附图标记说明：
10-触控单元；
100-触控面板；
110-第一触控电极；110a-第一电极区域；110b-第二电极区域；
1101-第一电极端部；1102-第一电极中部；1103-电极连接部；1104-第二电极中部；1105-第二电极端部；
120-第二触控电极；
1201-第三电极端部；1202-第三电极中部；
1203-电极搭接部；12031-第一电极搭接部；12032-第二电极搭接部；12033-桥接件；
1204-第四电极中部；1205-第四电极端部；
130-浮置电极；131-子电极；
140-桥架；
150-边界；151-第一界边；152-第二界边；153-第三界边；154-第四界边；155-第一顶点；156-第二顶点。
具体实施方式
正如背景技术所述，相关技术中触控面板容易出现触摸不灵、乱报点的问题，经申请人研究发现，出现这种问题的原因在于，电容式触控屏的工作原理基于检测触控电极之间的耦合电容波动，以感测触控动作。
如图1所示，在没有手指触摸触控面板时，驱动触控电极与感应触控电极之间会有一个固定耦合电容Cm，此时各电极之间的电场分布是固定的。在手指触摸触控面板时，驱动触控电极与感应触控电极之间的电场会发生变化，进而引起耦合电容Cm变小，当触控面板检测到耦合电容Cm变小时，就会认定有手指触摸，进而反馈出触摸操作。
如图2所示，触控单元10包括第一触控电极110、第二触控电极120及浮置电极130(Dummy电极)，第一触控电极110、第二触控电极120及浮置电极130三者之间相互绝缘，浮置电极130设置于第一触控电极110的挖孔区和第二触控电极120的挖孔区。
发明人通过对上述温差引起的触控不良进行分析后发现，耦合电容Cm主要由近端电容Cm1和远端电容Cm2组成，其中，近端电容Cm1由距离较近的第一触控电极110和第二触控电极120之间产生，例如图2中的A1点与A2点；远端电容Cm2由距离较远的第一触控电极110和第二触控电极120之间产生，例如图2中的A3点与A4点。由于电容式触控面板的介电系数对温度变化较为敏感，轻微介电系数变化会引起近端电容较大波动，而对远端电容影响较小。
手指未触摸屏体时，远端电容的电介质主要是屏体外的空气，近端电容的电介质主要是屏体材料。手指触摸屏体时，会导致屏体材料的温度发生变化，手指离开屏体后，屏体材料的温度不能立即恢复，导致近端电容的介电系数受温度影响较大。
例如，在屏体处于高温状态时，手指触摸屏体时对耦合电容有两方面叠加影响，其中一方面手指靠近屏体，能够使耦合电容降低，另一方面，被触摸位置的热量被吸走导致触摸位置温度降低，进而屏体材料的介电系数降低并使近端电容降低。
此种情况下温差对触摸为正向效果，不会引起触控问题，但是当手指抬起并离开触摸位置，原来被触摸位置的温度并不会立即恢复，此时的近端电容相比触摸前仍然是变小状态，进而导致手指抬起后，原触摸位置仍然反应有触摸动作，进而影响触控电极间的耦合电容检测准确性，从而触控面板容易出现乱报点的情况。
以及，在屏体处于低温状态时，手指触摸屏体时对耦合电容有两方面叠加影响，其中 一方面手指靠近屏体，能够使耦合电容降低，另一方面，被触摸位置吸收手指的热量，导致触摸位置温度升高，进而屏体材料的介电系数增大并使近端电容增大。此种情况下温差对触摸为反向效果，当温差引起的近端电容变大幅度大于或等于手指触摸时引起的电容变小幅度时，就会引起触摸无反应的情况。
因此，上述触控面板当手指触摸操作时其温度变化所引起屏体材料的介电系数变化，导致近端电容波动较大，从而影响触控电极间的耦合电容检测准确性，从而触控面板容易出现触摸不灵，乱报点的情况。
针对上述技术问题，本申请实施例提供了一种触控面板及显示装置，通过在第一触控电极和第二触控电极之间设置有隔离间隙，隔离间隙内设置有浮置电极，以能够增大第一触控电极和第二触控电极之间的间距，从而降低第一触控电极和第二触控电极之间的近端电容，增大远端电容。
进一步地，通过浮置电极的屏蔽作用，进一步减少第一触控电极和第二触控电极之间的近端电容。如此设置，可降低因温度变化导致的近端电容的波动，以使触控面板的触控功能受温度变化影响较小，避免显示触控面板出现触摸不灵以及乱报点的情况，保证触控面板正常工作。
为了使本申请实施例的上述目的、特征和优点能够更加明显易懂，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动的前提下所获得的所有其它实施例，均属于本申请保护的范围。
本申请实施例中提供的显示装置包括触控面板、显示屏、光学胶层及盖板等，其中触控面板设置在显示屏的出光侧，盖板与触控面板之间设置有光学胶层，并通过光学胶层贴合粘结。
如图3所示，本申请实施例提供的触控面板100包括基板以及设置在基板上的多个触控单元10，多个触控单元10呈阵列布置在基板上。为便于描述本申请实施例，图3所示X方向为第一方向，所示Y方向为第二方向。
如图4所示，本申请实施例提供的触控单元10包括相互绝缘设置的第一触控电极110和至少一个第二触控电极120，其中，第一触控电极110和第二触控电极120可同层设置或异层设置，第一触控电极110可以是驱动电极，第二触控电极120可以是感应电极；或者，第一触控电极110可以是感应电极，第二触控电极120可以是驱动电极；本申请实施例对此不加以限制。
本申请实施例中第一触控电极110和第二触控电极120之间具有隔离间隙，且至少部分隔离间隙内设置有浮置电极130。可选的，第一触控电极110和第二触控电极120之间的隔离间隙内均设置有浮置电极130，且浮置电极130与第一触控电极110、第二触控电极120中的至少一者同层设置。例如浮置电极130与第一触控电极110、第二触控电极120同层设置。
在一些实施例中，同一触控单元10中，第一触控电极110和第二触控电极120之间具有隔离间隙，隔离间隙的两侧边缘分别与第一触控电极110、第二触控电极120分别形成边界50，即第一触控电极110和第二触控电极120通过隔离间隙保持绝缘。
浮置电极130设置在隔离间隙内，且浮置电极130的延伸方向与边界50的延伸方向一致，即浮置电极130与边界50平行设置。沿垂直于边界50的延伸方向，浮置电极130分别与第一触控电极110、第二触控电极120之间保持大于或等于5μm且小于或等于10μm的绝缘间隙。通过设置绝缘间隙，以使浮置电极130分别与第一触控电极110、第二触控电极120绝缘。
可选的，沿垂直于边界50的延伸方向，浮置电极130的宽度可以是大于或等于80μm，且小于或等于120μm。通过设置较大的浮置电极130的宽度，以增大第一触控电极110和第二触控电极120之间的距离，从而降低近端电容。
如此设置，本申请实施例通过在第一触控电极110和第二触控电极120之间设置隔离间隙，能够明显增大第一触控电极110和第二触控电极120之间的间距，降低近端电容，同时浮置电极130还能够对隔离间隙起到均匀视觉效果的功能，避免较大的隔离间隙被肉眼可视，从而提高显示均一性效果。通过浮置电极130的屏蔽作用，进一步减少第一触控电极110和第二触控电极120之间的近端电容。
相关技术中第一触控电极110、第二触控电极120之间保持5μm至10μm的绝缘间隙，导致第一触控电极110和第二触控电极120之间的近端电容较大，远端电容较小，当触控面板的介电系数受温度变化时，近端电容受温度变化影响较大，导致整个触控面板100的耦合电容因温度变化其波导较大，影响触控电极的耦合电容检测准确性，从而影响触控面板100的正常工作。
本申请实施例提供的触控面板100，其在第一触控电极110和第二触控电极120之间具有隔离间隙，增大第一触控电极110和第二触控电极120之间的间距，从而降低第一触控电极110和第二触控电极120之间的近端电容，增大了远端电容。
进一步地，通过浮置电极130的屏蔽作用，进一步减少第一触控电极110和第二触控电极120之间的近端电容。因此可降低因温度变化导致的近端电容的波动，以使触控面板100的触控功能受温度变化影响较小，避免显示触控面板100出现触摸不灵以及乱报点的情况，保证触控面板100正常工作。
本申请实施例中浮置电极130可以只设置在第一触控电极110与第二触控电极120之间的至少部分区域中。相对于相关技术，不在第一触控电极110和第二触控电极120中挖设孔区用于设置浮置电极130可以增大远端电容，可确保触摸时整体的耦合电容Cm感应量变化不大。
发明人进一步发现，第一触控电极110与第二触控电极120之间相邻的边所占比例与近端电容有关，其中，相邻的边所占比例是指相邻的边长与触控电极所有边长的比例。请再次参照图2，相关技术中，因第一触控电极110与第二触控电极120相邻的边所占比例较大，近端电容也较大，受温度差异引起的耦合电容Cm的变化量也就较大，容易引起触控不灵。
为此，在本申请实施例通过对触控单元的各触控电极的形状作出相应改变，以降低第一触控电极110与第二触控电极120相邻的边所占比例，进而降低近端电容。本申请实施例中触控单元具有不同形状的触控电极，如下对不同触控电极在触控单元的布置方案，分别在不同实施例中进行详细描述。
实施例一
如图3至图6所示，每个触控单元10包括沿第一方向布置的两个第二触控电极120以及沿第二方向布置的第一触控电极110，且沿第一方向，第一触控电极110设置在两个第二触控电极120之间。
具体地，本申请实施例中在同一个触控单元10内，沿第一方向X，两个第二触控电极120分别设置于第一触控电极110的两侧，即第二触控电极120沿第一方向X排列在第一触控电极110的两侧。
可选地，第一触控电极110包括第一电极区域110a及两个第二电极区域110b，其中沿第二方向Y，两个第二电极区域110b分别位于第一电极区域110a的两侧，即第一电极区域110a设置在两个第二电极区域110b之间。需要说明的是，第一方向X与第二方向Y相交，例如，第一方向X和第二方向Y垂直。可选的，第一触控电极110呈漏斗形。
可选的，第一电极区域110a与第二触控电极120之间的隔离间隙内设置有浮置电极130，和/或，第二电极区域110b与第二触控电极120之间的隔离间隙内设置有浮置电极130。可选的，第一电极区域110a和第二电极区域110b与第二触控电极120之间的隔离间隙内均设置有浮置电极130。如此设置，能够进一步减少第二触控电极120和第一触控电极110之间的近端电容。
本申请实施例中第一电极区域110a、第二电极区域110b分别与第二触控电极120之间具有隔离间隙；换言之，第一电极区域110a、第二电极区域110b与第二触控电极120的边界区域分别设置有隔离间隙，上述浮置电极130设置在隔离间隙内，且浮置电极130与第二触控电极120保持一定绝缘间隙，以使浮置电极与第一触控电极110绝缘。
示例性地，在同一个触控单元10内，沿第二方向Y，第一电极区域110a在第一方向X上的尺寸先增大后减小；以及沿第二电极区域110b指向第一电极区域110a的方向，第二电极区域110b在第一方向X上的尺寸逐渐减小。
例如，本申请实施例中的第一电极区域110a呈菱形、圆形或者椭圆形，第二电极区域110b呈三角形，本申请实施例对此不加以限制。本申请实施例以第一电极区域110a呈菱形，且第二电极区域110b呈三角形为例进行说明。
可选的，沿第二方向Y，位于同一个触控单元10内的两个第二电极区域110b对称布置在第一电极区域110a的两侧。第一电极区域110a呈菱形，第二电极区域110b位于第一电极区域110a的一侧，并呈三角形，且第一电极区域110a和第二电极区域110b连通；则第二触控电极120、第一触控电极110与隔离间隙的两侧边缘分别形成的M形边界50。可选的，第二触控电极120呈M型。
如图4所示，为便于描述本申请实施例，第二触控电极120与隔离间隙所形成的M形边界50包括沿第二方向依次连接的第一界边151、第二界边152、第三界边153及第四界边154。其中，第二界边152和第三界边153经隔离间隙与第一电极区域110a相对；第一界边151和第四界边154经隔离间隙分别与两个第二电极区域110b相对。
第一电极区域110a的边缘轮廓在基板上的正投影呈菱形，即第一电极区域110a为菱形区域。沿第一方向X，位于同侧的第一电极区域110a的两个边经隔离间隙与第二界边152和第三界边153相对。
第二电极区域110b在基板上的正投影呈三角形，即第二电极区域110b为三角形区域， 沿第二方向，位于第一电极区域110a一侧的第二电极区域110b，其斜边经隔离间隙与M形边界50中的第一界边151相对；位于第一电极区域110a另一侧的第二电极区域110b，其斜边经隔离间隙与M形边界50中的第四界边154相对。
如此设置，在触控单元10的触控面积相同的情况下，与相关技术中第二触控电极120和第一触控电极110之间的边界呈U型相比，第二触控电极120和第一触控电极110与隔离间隙的边缘形成的M形边界，能够降低第二触控电极120和第一触控电极110之间的耦合面积，进而降低第二触控电极120和第一触控电极110的近端电容，以降低温度变化对触控面板100的正常工作的影响。
可选地，在同一个触控单元10内，连接两个第二触控电极120的桥架(桥接件)140设置于第一电极区域110a和第二电极区域110b的连通处。在同一个触控单元10内，两个第二触控电极120之间设置有两个桥架140，各桥架140分别设置在位于两个第二触控电极120的M形边界50的彼此相互靠近的顶点之间，且各桥架140的两端分别与两个第二触控电极120连接，即两个第二触控电极120通过桥架140桥接。
具体地，第一界边151和第二界边152之间形成第一顶点155，第三界边153与第四界边154之间形成第二顶点156。可选的，沿第一方向X，位于同一个触控单元10内的两个第二触控电极120对称布置在第一触控电极110的两侧。两个第二触控电极120关于第一触控电极110对称设置，并两个第二触控电极120朝向第一触控电极110的一侧均形成M形边界50。
在同一个触控单元10内，两个第二触控电极120的M形边界的沿第一方向X相对的第一顶点155之间布置有桥架140，两个第二触控电极120的M形边界的沿第一方向X相对的第二顶点156之间布置有桥架140。位于同一触控单元10内，在两个第一顶点155之间设置有上述一个桥架140，在两个第二顶点156之间设置有另一个桥架140，且每个桥架140的两端分别与两个第二触控电极120连接。
换言之，由于第一电极区域110a与第二电极区域110b连通，其中一个桥架140可设置在第一电极区域110a与位于其一侧的第二电极区域110b的连通处，另一个桥架140可设置在第二电极区域110b与位于其另一侧的第二电极区域110b的连通处。如此设置，两个第二触控电极120通过两个桥架140连接，能够降低第二触控电极120之间的电阻。
需要说明的是，触控面板100可包括底层金属层、绝缘层(例如可以是光学胶层)及图案金属层，其中桥架140可形成在底层金属层上，第二触控电极120和第一触控电极110可形成在图案金属层上，图案金属层位于底层金属层的上方，绝缘层在桥接位置设置有通孔，图案金属层与底层金属层通过通孔内的导电结构形成连通，进而完成桥接。
在同一个触控单元10内，每个第二触控电极120可为网格状电极，和/或，每个第一触控电极110可为网格状电极，和/或，每个浮置电极130可为网格状电极，避免遮挡显示屏的显示发光单元，避免影响显示。第二触控电极120、第一触控电极110和浮置电极130的网孔大小可相同或不同。
可选地，本申请实施例中的桥架140在第一方向上的长度e可以是大于或等于200μm，且小于或等于300μm，可避免两个第二触控电极120之间的间隔过小，而增大第二触控电极120和第一触控电极110之间的近端电容；再者，可避免第一电极区域110a与第二电极区域110b之间的连通区域过小，而增大第一电极区域110a和第二电极区域110b之间的 导通电阻。
参阅图5和图7所示，在上述实施例的基础上，在同一个触控单元10内，第一触控电极110和至少一个第二触控电极120(例如可以是第一触控电极110和任一第二触控电极120)之间的浮置电极130包括多个子电极131，多个子电极131沿边界50的延伸方向依次且间隔布置。
具体地，浮置电极130沿M形边界50的延伸方向布置，浮置电极130包括多个子电极131，M形边界50包括连续的四个界边，四个界边分别是第一界边151、第二界边152、第三界边153及第四界边154。
例如，浮置电极130包括四个子电极131，每个子电极131分别沿每个界边的延伸方向布置，并且相邻两个子电极131可在界边的顶点处断开，即相邻两个子电极131断开，以保持间隔。
如此设置，与在第二触控电极120和第一触控电极110之间设置有通长的浮置电极130相比，将浮置电极130设置成多个子电极131，当浮置电极130受干扰信号影响时，每个子电极131对第二触控电极120、第一触控电极110之间的近端电容影响较小，从而可提升触控面板100的耦合电容检测的准确性。
可选地，本申请实施中第一界边151、第二界边152、第三界边153以及第四界边154分别配置成直线段，每个界边的一侧分别设置有一个子电极131，且各子电极131配置为直线形电极，即各界边在基板上的正投影为一线段，相应的，浮置电极130的各子电极131配置为具有一定宽度的直线形电极。进一步地，每个子电极131分别与第二触控电极120、第一触控电极110之间保持一定绝缘间隙。
如此设置，在相同的边界的长度下，与现有技术中边界的正投影呈波浪形或者锯齿形相比，本申请实施例中的各界边配置为直线段，其能够降低第二触控电极120和第一触控电极110之间的耦合面积，进而降低第二触控电极120和第一触控电极110的近端电容，以降低温度变化对触控面板100的正常工作的影响。
需要说明的是，上述各子电极131可以是设置在绝缘间隙内的直线形导线，以形成直线形电极；例如子电极131可以是金属直线。或者，如图5所示，上述各子电极131可以是设置在隔离间隙内的网格状导线，以形成网格状电极，例如子电极131可以是网格状金属线，如此设置，子电极131与第二触控电极120、第一触控电极110均呈网格状，以便于制作。
继续参阅图4和图5，在上述实施例的基础上，每个触控单元10在第一方向上的延伸长度L1与触控单元10在第二方向上的延伸长度L2的比值L1/L2大于或等于0.95，且小于或等于1.05，即触控单元10在第一方向X上的延伸长度L1(在第一方向X上的最大尺寸)与触控单元10在第二方向Y上的延伸长度L2(在第二方向Y上的最大尺寸)近乎相等。触控单元10可为矩形等，例如可为正方形。
可选的，沿第一方向X，第一电极区域110a的长度L3大于或等于0.6L1，且小于或等于0.7L1。其中，L1为触控单元10在第一方向X上的延伸长度。通过增大第一电极区域110a在第一方向X的尺寸，以增大第一电极区域110a的面积，以增大远端电容，降低温度变化对触控功能的影响。
可选的，沿第二方向Y，第一电极区域110a的长度L4大于或等于0.4L2，且小于或 等于0.6L2。其中，L2为触控单元10在第二方向Y上的延伸长度。通过增大第一电极区域110a在第二方向Y的尺寸，以增大第一电极区域110a的面积，以增大远端电容，降低温度变化对触控功能的影响。可选的，沿第二方向Y，第一电极区域110a的长度L4等于0.5L2。
如此设置，可使在同一个触控单元10内，全部第二触控电极120在基板上的正投影面积大于或等于整个触控单元10的面积的45％，且小于或等于整个触控单元10的面积的55％。
在同一个触控单元10内，第一触控电极110在基板上的正投影面积大于或等于整个触控单元10的面积的35％，且小于或等于整个触控单元10的面积的45％。
在同一个触控单元10内，全部浮置电极在基板上的正投影面积大于或等于整个触控单元10的面积的7％，且小于或等于整个触控单元10的面积的10％。
因此在同一个触控单元10内，第一电极区域110a具有较大面积，避免第一电极区域110a的面积较小，导致用户在操控触控面板100时，手指触摸第一电极区域110a时，第一触控电极110无法感应并影响整个远端电容的均衡性，从而影响触控面板100正常工作。
实施例二
如图8所示，本申请实施例中第一触控电极110和第二触控电极120均呈工字型，相对于图2所示的触控电极形状，本实施例提供第一触控电极110和第二触控电极120相邻的边所占比例较小，近端电容更小，受温度差异引起的耦合电容Cm的变化量也会更小，有利于提高高低温环境下触控功能的稳定性。
进一步地，在本实施例中，触控单元10所在的区域为一矩形区域，触控单元10沿第一方向的长度与触控单元10沿第二方向的宽度之间的比值在0.95～1.05之间。
优选的，触控单元10沿第一方向的长度与触控单元10沿第二方向的宽度相等。如此设计，可以使得由上述触控单元10形成的触控面板在第一方向和第二方向的触控线性度基本一致，从而确保触控面板的不同位置区域具有基本相同的触控灵敏度。
如图9所示，在本申请实施例中第一触控电极110包括沿第二方向依次连接的第一电极端部1101、第一电极中部1102、电极连接部1103、第二电极中部1104及第二电极端部1105。第一电极端部1101在第一方向的长度d1大于第一电极中部1102在第一方向的长度d2，第一电极中部1102在第一方向的长度d2大于电极连接部1103在第一方向的长度d3，第二电极端部1105在第一方向的长度d4大于第二电极中部1104在第一方向的长度d5，第二电极中部1104在第一方向的长度d5大于电极连接部1103在第一方向的长度d3。
如图10所示，第二触控电极120包括沿第一方向依次连接的第三电极端部1201、第三电极中部1202、电极搭接部1203、第四电极中部1204及第四电极端部1205。第三电极端部1201在第二方向的宽度D1大于第三电极中部1202在第二方向的宽度D2，第三电极中部1202在第二方向的宽度D2大于电极搭接部1203在第二方向的宽度D3，第四电极端部1205在第二方向的宽度D4大于第四电极中部1204在第二方向的宽度D5，第四电极中部1204在第二方向的宽度D5大于电极搭接部1203在第二方向的宽度D3。
进一步地，第一触控电极110相对于过电极连接部1103的几何中心O且沿第一方向的直线L5对称。第一电极端部1101在第一方向的长度d1与第二电极端部1105在第一方 向的长度d4相等，第一电极中部1102在第一方向的长度d2与第二电极中部1104在第一方向的长度d5相等。
第二触控电极120相对于过电极连接部1103的几何中心O且沿第二方向的直线L6轴对称。第三电极端部1201在第二方向的宽度D1与第四电极端部1205在第二方向的宽度D4相等，第三电极中部1202在第二方向的宽度D2与第四电极中部1204在第二方向的宽度D5相等。
在本实施例中，请参照图11，电极搭接部1203可包括位于电极连接部1103相对两侧的第一电极搭接部12031、第二电极搭接部12032以及用于连接第一电极搭接部12031和第二电极搭接部12032的桥接件12033，桥接件12033与电极连接部1103位于不同金属层。桥接件12033可包括多条并联的金属导线，优选的，桥接件12033可包括4条并联的金属导线。采用多条并联的金属导线将第一电极搭接部12031和第二电极搭接部12032连接，可以降低桥接阻抗。
如图12所示，本申请实施例中第一电极中部1102在第一方向的长度d2为触控单元的长度a的0.4～0.6倍，第一电极中部1102与第三电极中部1202相邻的部分在第一方向的长度d6为触控单元的长度a的0.1～0.15倍，第一电极中部1102与第四电极中部1204相邻的部分在第一方向的长度d7为触控单元的长度a的0.1～0.15倍。
第三电极中部1202在第二方向的宽度D2为触控单元10的宽度b的0.16～0.3倍，第三电极端部1201与第一电极中部1102相邻的部分在第二方向的宽度D6为触控单元的宽度b的0.3～0.4倍，第三电极端部1201与第二电极中部1104相邻的部分在第二方向的宽度D7为触控单元10的宽度b的0.3～0.4倍。
上述设计的尺寸，可以使得第一触控电极110和第二触控电极120有较大的电极面积，进而确保有足够的电极感应量。
进一步地，第一电极端部1101在第一方向的长度d1为触控单元的长度a的0.8～0.85倍，第三电极端部1201在第二方向的宽度D1为触控单元的宽度b的0.76～0.9倍。上述设计的电极端部具有较大的尺寸，可以使得相邻触控单元10通过电极端部连接时能充分接触，降低相邻触控单元的连接阻抗。
在本实施例中，第一触控电极110的面积占触控单元10的面积的38％～43％，第二触控电极120的面积占触控单元10的面积的50％～55％，浮置电极130的面积占触控单元10的面积的8％～11％。浮置电极130的线宽可以为110um～150um。
在本实施例中，第一触控电极110可以为触控感应电极，第二触控电极120可以为触控驱动电极。
因电极连接部1103和电极搭接部1203的线宽较窄，若在电极连接部1103和电极搭接部1203所处区域在设置浮置电极130势必会进一步压缩电极连接部1103和电极搭接部1203的布线空间，增大此处区域的连接阻抗，为此在本实施例中，电极连接部1103和电极搭接部1203之间可以无浮置电极130分布，电极连接部1103和电极搭接部1203之间的间隙宽度可以为触控单元10的长度a的0.1～0.15倍。
本申请实施例提供的触控单元，触控单元包括相互绝缘的第一触控电极、第二触控电极及浮置电极，将浮置电极设置在第一触控电极与第二触控电极之间的至少部分区域中，如此可以增大相邻第一触控电极与第二触控电极之间的距离，从而可以减小第一触控电极 和第二触控电极之间的近端电容。由于温度差异引起的介电系数主要对近端电容影响比较大，减小近端电容可以削弱温度差异引起的耦合电容变化量，从而可以提高高低温环境下触控功能的稳定性。
以及，本申请实施例提供的触控面板包括上述触控单元，采用前面描述的触控单元可以确保触控面板在较大温差条件下的触控功能稳定性，提升用户体验，增大产品市场竞争力。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (15)

  1. 一种触控面板，其中包括基板及多个触控单元；
    多个所述触控单元呈阵列排布在所述基板上，每个所述触控单元包括相互绝缘的第一触控电极和至少一个第二触控电极；
    同一所述触控单元中，所述第一触控电极和所述第二触控电极之间具有隔离间隙，至少部分所述隔离间隙内设置有浮置电极，所述浮置电极分别与所述第一触控电极和所述第二触控电极绝缘。
  2. 根据权利要求1所述的触控面板，其中每个所述触控单元包括两个第二触控电极；
    所述第一触控电极设置于两个所述第二触控电极之间，且两个所述第二触控电极电连接。
  3. 根据权利要求2所述的触控面板，其中两个所述第二触控电极沿第一方向布置于所述第一触控电极的两侧；
    在同一个所述触控单元内，所述第一触控电极包括第一电极区域及两个第二电极区域；
    沿第二方向，两个所述第二电极区域分别位于所述第一电极区域的两侧，且第一方向和第二方向相交；
    所述第一电极区域、所述第二电极区域与所述第二触控电极之间的隔离间隙内均设置有所述浮置电极。
  4. 根据权利要求3所述的触控面板，其中所述触控单元还包括连接两个所述第二触控电极的桥架；
    所述桥架设置于所述第一电极区域和所述第二电极区域的连通处。
  5. 根据权利要求3所述的触控面板，其中在同一个所述触控单元内，沿第二方向，所述第一电极区域在第一方向上的尺寸先增大后减小；
    在同一个所述触控单元内，沿所述第二电极区域指向所述第一电极区域的方向，所述第二电极区域在第一方向上的尺寸逐渐减小。
  6. 根据权利要求2至5中任一项所述的触控面板，其中所述隔离间隙的边缘分别与所述第一触控电极、所述第二触控电极形成边界；
    所述浮置电极的延伸方向与所述边界的延伸方向一致，沿垂直于所述边界的延伸方向，所述浮置电极的两侧分别与所述第一触控电极、所述第二触控电极之间具有绝缘间隙；
    所述浮置电极包括多个子电极，多个所述子电极沿所述边界的延伸方向依次间隔布置。
  7. 根据权利要求6所述的触控面板，其中沿第一方向，位于同一个所述触控单元内的两个所述第二触控电极对称布置在所述第一触控电极的两侧；
    所述隔离间隙的边缘一侧与所述第二触控电极形成M形边界，所述隔离间隙的另一侧与所述第一触控电极形成M形边界；
    两个所述第二触控电极的M形边界的彼此相互靠近的顶点之间设置有桥架。
  8. 根据权利要求7所述的触控面板，其中所述第二触控电极形成M形边界包括沿第二方向依次连接的第一界边、第二界边、第三界边及第四界边；
    所述第一界边、所述第二界边、所述第三界边以及所述第四界边分别配置成直线段；
    每个界边的一侧分别设置有一个所述子电极，且所述子电极为直线形电极。
  9. 根据权利要求1所述的触控面板，其中所述触控单元包括均呈工字型的所述第一触控电极、所述第二触控电极；
    其中所述第一触控电极整体沿第一方向延伸设置，所述第二触控电极整体沿第二方向延伸设置，且第一方向与第二方向垂直。
  10. 根据权利要求9所述的触控面板，其中所述第一触控电极包括沿第二方向依次连接的第一电极端部、第一电极中部、电极连接部、第二电极中部及第二电极端部；
    所述第一电极端部、所述第一电极中部及所述电极连接部在第一方向上的长度依次减小，所述第二电极端部、所述第二电极中部及所述电极连接部在第一方向上的长度依次减小；
    其中所述第二触控电极包括沿第一方向依次连接的第三电极端部、第三电极中部、电极搭接部、第四电极中部及第四电极端部；
    其中所述第三电极端部、所述第三电极中部及所述电极搭接部在第二方向上的宽度依次减小，所述第四电极端部、所述第四电极中部及所述电极搭接部在第二方向上的宽度依次减小。
  11. 根据权利要求10所述的触控面板，其中所述电极搭接部包括位于所述电极连接部相对两侧的第一电极搭接部、第二电极搭接部以及用于连接所述第一电极搭接部和所述第二电极搭接部的桥接件；
    所述桥接件包括多条并联的金属导线，其中所述桥接件与所述电极连接部位于不同金属层。
  12. 根据权利要求10所述的触控面板，其中所述第一触控电极相对于过所述电极连接部的几何中心且沿第一方向的直线轴对称；
    所述第二触控电极相对于过所述电极连接部的几何中心且沿第二方向的直线轴对称。
  13. 根据权利要求1所述的触控面板，其中所述触控单元沿第一方向的长度与所述触控单元沿第二方向的长度的比值大于或等于0.95，且小于或等于1.05。
  14. 根据权利要求1所述的触控面板，其中所述触控单元所在的区域为一矩形区域；
    在同一个所述触控单元内，全部所述第一触控电极在所述基板上的正投影面积大于或等于整个所述触控单元的面积的45％，且小于或等于整个所述触控单元的面积的55％；
    在同一个所述触控单元内，所述第二触控电极在所述基板上的正投影面积大于或等于整个所述触控单元的面积的35％，且小于或等于整个所述触控单元的面积的45％；
    在同一个所述触控单元内，全部所述浮置电极在所述基板上的正投影面积大于或等于整个所述触控单元的面积的7％，且小于或等于整个所述触控单元的面积的11％。
  15. 一种显示装置，其中包括权利要求1至14中任一项所述的触控面板。
PCT/CN2023/126924 2022-10-27 2023-10-26 触控面板及显示装置 Ceased WO2024088356A1 (zh)

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