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WO2018126672A1 - 触控面板及其制造方法、触控显示装置 - Google Patents

触控面板及其制造方法、触控显示装置 Download PDF

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Publication number
WO2018126672A1
WO2018126672A1 PCT/CN2017/095980 CN2017095980W WO2018126672A1 WO 2018126672 A1 WO2018126672 A1 WO 2018126672A1 CN 2017095980 W CN2017095980 W CN 2017095980W WO 2018126672 A1 WO2018126672 A1 WO 2018126672A1
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WO
WIPO (PCT)
Prior art keywords
electrode
touch
touch electrode
base substrate
line
Prior art date
Application number
PCT/CN2017/095980
Other languages
English (en)
French (fr)
Inventor
谢晓冬
张明
胡明
王静
王庆浦
朱顺成
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
Publication date
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 US15/752,275 priority Critical patent/US11023073B2/en
Publication of WO2018126672A1 publication Critical patent/WO2018126672A1/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
    • G06F3/0412—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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • G—PHYSICS
    • G06—COMPUTING; 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • 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
    • G06F3/0445—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
    • 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
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Definitions

  • the present application relates to the field of display technologies, and in particular, to a touch panel, a method of manufacturing the same, and a touch display device.
  • the touch display device includes: a control unit and a touch panel and a display panel stacked together.
  • the present application provides a touch panel, a manufacturing method thereof, and a touch display device.
  • the technical solution is as follows:
  • a touch panel in a first aspect, includes:
  • the first touch electrode is located at a central region of the base substrate, and the second touch electrode is located at an edge region of the base substrate.
  • the touch panel further includes a first transparent insulating layer covering the base substrate and the first touch electrode, and wherein the second touch electrode is located on the first transparent insulating layer on.
  • the second touch electrode is a strip electrode.
  • the strip electrodes have different widths at both ends along the extending direction thereof.
  • the edge of the strip electrode is in a zigzag shape.
  • the first touch electrode and the second touch electrode are both connected to the control unit.
  • the touch panel further includes: a first electrode line disposed on the base substrate, the first electrode line connecting the first touch electrode to the control unit;
  • a second electrode line disposed on the base substrate, the second electrode line connecting the second touch electrode to the control unit.
  • the first touch electrode includes: a driving electrode and a sensing electrode disposed in a cross isolation manner;
  • the first electrode line includes a driving line and a sensing line, wherein the driving line connects the driving electrode to the control unit, and the sensing line connects the sensing electrode to the control unit;
  • a second transparent insulating layer covering the base substrate and the driving electrode, wherein the sensing electrode is located on the second transparent insulating layer.
  • the first touch electrode and the second touch electrode comprise indium tin oxide
  • the first transparent insulating layer and the second transparent insulating layer comprise a transparent resin
  • a method of manufacturing a touch panel comprising:
  • the first touch electrode is located at a central region of the base substrate, and the second touch electrode is located at an edge region of the base substrate.
  • the forming the first touch electrode and the second touch electrode on the base substrate includes:
  • the second touch electrode is a strip electrode.
  • the strip electrodes have different widths at both ends along the extending direction thereof.
  • the method further includes forming a control unit, wherein the first touch electrode and The second touch electrodes are all connected to the control unit.
  • forming the first touch electrode on a central region of the base substrate includes:
  • the first touch electrode includes: a driving electrode and a sensing electrode disposed in a cross-isolation manner, the first electrode line includes a driving line and a sensing line, and the driving line connects the driving electrode to the control a unit, the sensing line connecting the sensing electrode to the control unit,
  • Forming the first touch electrode and the first electrode line on the base substrate includes:
  • the sensing electrode and the sensing line are formed on a base substrate on which the second transparent insulating layer is formed.
  • a touch display device comprising: the touch panel of the first aspect.
  • FIG. 1 is a schematic structural diagram of a touch panel according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of another touch panel according to an embodiment of the present disclosure.
  • FIG. 3 is a schematic structural diagram of a second touch electrode according to an embodiment of the present disclosure.
  • FIG. 4 is a partial schematic structural diagram of a touch panel according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic cross-sectional view of a binding area provided by an embodiment of the present disclosure.
  • FIG. 6 is a flowchart of a method for manufacturing a touch panel according to an embodiment of the present disclosure
  • FIG. 7 is a flowchart of a method for forming a touch electrode according to an embodiment of the present disclosure
  • FIG. 8 is a partial schematic structural diagram of another touch panel according to an embodiment of the present disclosure.
  • FIG. 9 is a partial structural diagram of still another touch panel according to an embodiment of the present disclosure.
  • FIG. 10 is a partial schematic structural diagram of still another touch panel according to an embodiment of the present disclosure.
  • FIG. 11 is a partial schematic structural diagram of a touch panel according to another embodiment of the present disclosure.
  • FIG. 12 is a schematic diagram of a display device provided by an embodiment of the present disclosure.
  • the terms “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom” and The derivative should refer to the public text.
  • the terms “overlay”, “on top of”, “positioned on” or “positioned on top of” mean that a first element, such as a first structure, exists in a second element, such as a second structure. Above, wherein an intermediate element such as an interface structure may exist between the first element and the second element.
  • the term “contacting” means connecting a first element such as a first structure and a second element such as a second structure Elements, with or without other elements at the interface of the two elements.
  • the touch panel includes a base substrate and a touch layer formed on the base substrate.
  • the touch layer includes a touch electrode formed on a central region of the substrate plate, and an electrode line formed on an edge region of the substrate plate, and the touch electrode is connected to the control unit through the electrode line.
  • the central area of the touch panel corresponds to the effective display area of the display panel, and the edge area of the touch panel corresponds to the non-display area of the display panel.
  • the control unit can collect the electrical signal on the touch electrode through the electrode line, thereby determining the position of the touch electrode touched by the user in the touch electrode located in the central area, and controlling the effective display area of the display panel to display the corresponding image, so that
  • the central area of the touch display device that is, the central area of the touch panel
  • the touch display device of one mode only the central area has a touch function and the edge area does not have a touch function. Therefore, the touch function of the touch display device is limited.
  • FIG. 1 is a schematic structural diagram of a touch panel 0 according to an embodiment of the present disclosure.
  • the touch panel 0 may include a base substrate 01 on which a first touch is disposed.
  • the second touch electrode 02 is located at a central region of the base substrate 01, and the second touch electrode 03 is located at an edge region of the base substrate 01.
  • the first touch electrode 02 and the second touch electrode 03 are both connected to the control unit 1.
  • the first touch electrode 02 passes through the first electrode line 05 and the second touch electrode 03 is connected to the same control unit through the second electrode line 06 as an example.
  • the first touch electrode and the second touch electrode can also be connected to different control units.
  • the central area of the base substrate is provided with the first touch electrode
  • the edge area of the base substrate is provided with the second touch electrode, thereby enabling respectively Detecting electrical signals on the first touch electrode and the second touch electrode.
  • the central area and the edge area of the touch display device in which the touch panel is located all have the function of touch. Therefore, the embodiment of the present invention can at least enrich the function of the touch display device.
  • control unit 1 can be a control chip, and the control unit 1 can be connected to the touch electrodes in the touch panel, and collect electrical signals on each touch electrode, and then according to each touch electrode. The electrical signal determines the position of the touch panel on the touched surface.
  • the central area in the embodiment of the present disclosure may be the same as the effective display area (English: active area; abbreviated as: AA area) of the display panel in the related art, and the edge area in the embodiment of the present disclosure may be related to the display panel in the related art.
  • the non-AA area is the same.
  • the central area may be a central area, and the central area may have a rectangular shape.
  • the shape of the edge area may be a back shape; the shape of the central area may also be a circle, and the edge may be The shape of the area can be circular.
  • FIG. 2 is a schematic structural diagram of another touch panel 0 according to an embodiment of the present disclosure.
  • a first touch electrode 02 is disposed on a central area of the base substrate 01; and a first touch is disposed.
  • a first transparent insulating layer 04 is disposed on the base substrate 01 of the electrode 02; and a second touch electrode 03 is disposed on an edge region of the base substrate 01 on which the first transparent insulating layer 04 is disposed.
  • the second touch electrode 03 may be disposed as a strip electrode in order to reduce the number of leads connecting the second touch electrode 03 and the control unit 1.
  • the wires on the base substrate for connecting the electrodes and the control unit may be referred to as leads.
  • FIG. 3 is a schematic structural diagram of a second touch electrode 03 according to an embodiment of the present disclosure. As shown in FIG. 3 , the second touch electrode 03 may have a strip shape. Since the area of the strip electrodes is large, the number of the second touch electrodes 03 in the edge regions is small, so that the leads connecting the second touch electrodes 03 and the control unit 1 are also less.
  • the width of the strip electrode at one end along the extending direction thereof may be greater than the width at the other end, that is, the width at both ends of the strip electrode is different, and when the user touches different regions of the strip electrode, the control unit 1 The electrical signals on the strip electrodes are different. At this time, the control unit 1 can determine the specific position on the strip electrode by the user according to the collected electrical signals, and reduce the second touch electrode 03 in the edge region. Under the premise of the number of leads, the touch precision of the second touch electrode 03 is improved.
  • each of the plurality of strip electrodes (that is, the plurality of second touch electrodes 03) has different widths at both ends along the extending direction thereof.
  • the first strip electrode and the second strip electrode may be any two adjacent strip electrodes of the plurality of strip electrodes, and the wider end of the first strip electrode and the second strip electrode are narrower One end is adjacent, and the narrower end of the first strip electrode is adjacent to the wider end of the second strip electrode.
  • the edges of the strip electrodes may be serrated.
  • the user's finger touches the edges of two adjacent strip electrodes at the same time if the user's finger is located in the middle of two adjacent strip electrodes, since the edges of the strip electrodes are jagged, the user's fingers are in the two The touch areas on adjacent strip electrodes are different. Therefore, the area touched by the two strip electrodes detected by the control unit 1 is different, and the control unit 1 can more accurately determine the position touched by the user, and further improve the touch precision of the second touch electrode 03.
  • the first touch electrode 02 and the first electrode line may be disposed on the base substrate 01 , and the first touch electrode 02 is connected to the control unit through the first electrode line.
  • the first touch electrode 02 and the first electrode line may be referred to as a first touch layer.
  • the second touch electrode 03 and the second electrode line 06 are disposed on the base substrate 01 provided with the first transparent insulating layer 04, and the second touch electrode 03 is connected to the control through the second electrode line 06. unit.
  • the second touch electrode 03 and the second electrode line 06 may be referred to as a second touch layer.
  • FIG. 4 is a partial structural diagram of a touch panel 0 according to an embodiment of the present disclosure, wherein FIG. 4 is a top view of a partial structure of the touch panel 0, and FIG. 4 shows a touch panel 0.
  • the central area, FIG. 2 is a cross-sectional view of the touch panel 0. 2 and FIG. 4,
  • the first touch electrode 02 may include a driving electrode (also referred to as a Tx electrode) 021 and a sensing electrode (also referred to as an Rx electrode) 022 disposed in a cross-isolation manner (only partial driving is shown in FIG. 4).
  • the first electrode line 05 includes a driving line 051 and a sensing line 052, the driving electrode 021 is connected to the control unit through the driving line 051, and the sensing electrode 022 is connected to the control unit through the sensing line 052.
  • a driving electrode 021 and a driving line 051 are disposed on the base substrate 01; a second transparent insulating layer 07 is disposed on the base substrate 01 provided with the driving electrode 021 and the driving line 051; and a substrate provided with the second transparent insulating layer 07
  • a sensing electrode 022 and a sensing line 052 are disposed on the substrate 01.
  • the driving electrode 021 and the driving line 051 may be referred to as a driving electrode layer
  • the electrode 022 and the sensing line 052 may be referred to as a sensing electrode layer.
  • FIG. 5 is a schematic cross-sectional view of a binding region according to an embodiment of the present disclosure. Referring to FIG. 4 and FIG. 5, the driving line 051, the sensing line 052, and the second electrode line 06 of the second touch electrode connecting the edge regions are shown. Both can be aggregated to the binding (English: Bonding) area M in FIG.
  • the first touch electrode on the base substrate includes two layers of electrodes, which are respectively a driving electrode and a sensing electrode, and the driving electrode and the sensing electrode are respectively connected to the control unit, and the first touch electrode is implemented.
  • the second touch electrode on the substrate substrate includes only one layer of electrodes, and each of the second touch electrodes is connected to the control unit, and the second touch electrode is used for touch control.
  • the mode is self-capacitive touch.
  • the first touch electrode may further include only one layer of electrodes, and each of the first touch electrodes is connected to the control unit, and the first touch electrode is implemented by self-capacitive touch;
  • the touch electrodes can also include two layers of electrodes, which are respectively a driving electrode and a sensing electrode.
  • the driving electrodes and the sensing electrodes are respectively connected to the control unit, and the second touch electrodes are touch-sensitive.
  • the first touch electrode and the second touch electrode each include a layer of electrodes, and each of the first touch electrodes and each of the second touch electrodes are connected to the control unit, the first touch electrode and the second touch The way in which the control electrodes implement the touch is self-capacitive touch.
  • the first touch electrode and the second touch electrode each include two layers of electrodes, the first touch electrode includes a driving electrode and a sensing electrode, and the second touch electrode also includes a driving electrode and a sensing electrode, and the first touch electrode and The second touch electrodes implement touch sensing in a mutual capacitive touch mode.
  • the touch panel provided by the embodiment of the present disclosure can be used for the touch of the borderless display screen, that is, the touch panel provided by the embodiment of the present disclosure can be combined with the frameless display panel to obtain no
  • the touch screen of the touch panel, the touch electrodes in the touch panel can be made of a transparent conductive material (such as indium tin oxide), and the transparent insulating layer can be made of a material. It is made of transparent insulation (such as transparent resin). That is, all the touch electrodes and the transparent insulating layer of the central area and the edge area of the touch panel are transparent materials, and the transparency of the touch panel is high.
  • the material of the touch electrode is indium tin oxide, the conductivity of the touch electrode is high, and the touch panel achieves high touch efficiency.
  • the base substrate in the touch panel can be in-line A substrate in a color filter substrate of a display screen.
  • the base substrate in the touch panel may be disposed on the light exit side of the color filter substrate.
  • the central area of the base substrate is provided with the first touch electrode
  • the edge area of the base substrate is provided with the second touch electrode, thereby enabling respectively Detecting electrical signals on the first touch electrode and the second touch electrode.
  • the central area and the edge area of the touch display device in which the touch panel is located all have the function of touch. Therefore, the embodiment of the present invention can at least enrich the function of the touch display device.
  • FIG. 6 is a flowchart of a method for manufacturing a touch panel according to an embodiment of the present disclosure. As shown in FIG. 6 , the method for manufacturing the touch panel may include:
  • Step 601 Form a first touch electrode and a second touch electrode on the base substrate.
  • the first touch electrode is located at a central region of the base substrate, and the second touch electrode is located at an edge region of the base substrate.
  • the central region of the base substrate is provided with a first touch electrode
  • the edge region of the base substrate is provided with a first
  • the two touch electrodes enable detection of electrical signals on the first touch electrode and the second touch electrode, respectively.
  • the central area and the edge area of the touch display device where the touch panel is located have the function of touch, so the function of the touch display device is enriched.
  • the method of manufacturing the touch panel further includes forming a control unit, wherein the first touch electrode and the second touch electrode may be connected to the same control unit or may be connected to different control units.
  • step 601 can include:
  • Step 6011 forming a first touch electrode on a central area of the base substrate.
  • the first touch electrode and the first electrode line may be first formed on the base substrate, and the first touch electrode is connected to the control unit through the first electrode line.
  • the first touch electrode may include: a driving electrode and a sensing electrode disposed in a cross-isolation manner, the first electrode line includes a driving line and a sensing line, the driving electrode is connected to the control unit through the driving line, and the sensing electrode passes the sensing line Connect to the control unit.
  • the first touch electrode and the first electrode line may be referred to as a first touch layer.
  • a drive electrode 021 and a drive line 051 are formed on the base substrate 01.
  • the materials of the driving electrode 021 and the driving line 051 may be the same.
  • a method such as coating, magnetron sputtering, thermal evaporation, or plasma enhanced chemical vapor deposition (PECVD) may be employed on the substrate substrate 01.
  • a driving electrode material is deposited thereon to obtain a driving electrode material layer, and then the driving electrode material layer is processed by a patterning process to obtain the driving electrode 021 and the driving line 051.
  • one patterning process includes: photoresist coating, exposure, development, etching, and photoresist stripping.
  • processing the metal layer by using a patterning process includes: coating a layer of photolithography on the metal layer
  • the glue is then exposed to the photoresist by using a mask to form the fully exposed and non-exposed areas of the photoresist, and then processed by a development process to remove the photoresist in the fully exposed area, and the light in the non-exposed area.
  • the engraved glue is retained, and then the corresponding area on the metal material layer is completely etched. After the etching is completed, the photoresist in the non-exposed area is peeled off to obtain the driving electrode and the driving line.
  • a second transparent insulating layer 07 is formed on the driving electrode 021 and the driving line 051.
  • the sensing electrode 022 and the sensing line are formed on the base substrate 01 on which the second transparent insulating layer 07 is formed.
  • the driving electrode 021 and the sensing electrode 022 constitute a first touch electrode 02.
  • the materials of the sensing electrode 022 and the sensing line 052 may be the same.
  • Step 6012 forming a first transparent insulating layer on the first touch electrode and the substrate.
  • a first transparent insulating layer 04 may be formed on the first touch electrode 02 and the base substrate 01.
  • Step 6013 forming a second touch electrode on the first transparent insulating layer on the edge region of the base substrate.
  • a second touch electrode 03 and a second electrode line 06 may be formed on the first transparent insulating layer 04 on the edge region of the base substrate 01, and the second touch electrode 03 passes through the second The electrode line 06 is connected to the control unit.
  • the second touch electrode 03 and the second electric The material of the pole line 06 can be the same.
  • the second touch electrode 03 and the second electrode line 06 may be referred to as a second touch layer.
  • FIG. 3 is a schematic structural diagram of a second touch electrode 03 according to an embodiment of the present disclosure. As shown in FIG. 3 , the second touch electrode 03 may have a strip shape. Since the area of the strip electrodes is large, the number of the second touch electrodes 03 in the edge regions is small, so that the leads connecting the second touch electrodes 03 and the control unit are also less.
  • the width of the strip electrode at one end along the extending direction thereof may be greater than the width at the other end, that is, the width at both ends of the strip electrode is different, and when the user touches different regions of the strip electrode, the control unit The electrical signals on the strip electrodes are different. At this time, the control unit can determine the specific position on the strip electrode by the user according to the collected electrical signals, and reduce the number of leads of the second touch electrode 03 in the edge region. Under the premise, the touch precision of the second touch electrode 03 is improved.
  • the widths of the strip electrodes are different at each of the plurality of strip electrodes (ie, the plurality of second touch electrodes 03).
  • the first strip electrode and the second strip electrode may be any two adjacent strip electrodes of the plurality of strip electrodes, and the wider end of the first strip electrode and the second strip electrode are narrower One end is adjacent, and the narrower end of the first strip electrode is adjacent to the wider end of the second strip electrode.
  • the edge of the strip electrode may be in a zigzag shape.
  • the control unit can more accurately determine the position touched by the user, and further improve the touch precision of the second touch electrode 03.
  • the central region of the base substrate is provided with a first touch electrode
  • the edge region of the base substrate is provided with a first
  • the two touch electrodes enable detection of electrical signals on the first touch electrode and the second touch electrode, respectively.
  • the central area and the edge area of the touch display device in which the touch panel is located have a touch function, so that the embodiment of the present invention can at least enrich the touch display device. Set the function.
  • the embodiment of the present disclosure provides a touch display device, which may include the touch panel shown in FIG. 1, FIG. 2 or FIG.
  • FIG. 12 is a schematic diagram of a touch display device provided by an embodiment of the disclosure.
  • the touch display device 2000 of FIG. 12 includes a touch substrate 1000.
  • the touch substrate 1000 may include the touch panels illustrated in FIGS. 1 , 2 , 4 , 8 , 9 , 10 , and 11 .
  • the display device can be any product or component having a touch display function, such as an electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • a touch display function such as an electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • the central area of the base substrate is provided with the first touch electrode, and the edge area of the base substrate is provided with the second touch.
  • the electrodes enable the electrical signals on the first touch electrode and the second touch electrode to be detected separately.
  • the central area and the edge area of the touch display device in which the touch panel is located all have the function of touch. Therefore, the embodiment of the present invention can at least enrich the function of the touch display device.
  • the embodiment of the touch panel provided by the embodiment of the present disclosure, the embodiment of the method for manufacturing the touch panel, and the embodiment of the touch display device can be referred to each other, and the embodiment of the present disclosure does not limit this.

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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)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
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Abstract

一种触控面板（0）及其制造方法、触控显示装置（2000），属于显示技术领域。该触控面板（0）包括：衬底基板（01），该衬底基板（01）上设置有第一触控电极（02）和第二触控电极（03）；其中，该第一触控电极（02）位于该衬底基板（01）的中央区域，该第二触控电极（03）位于该衬底基板（01）的边缘区域。

Description

触控面板及其制造方法、触控显示装置
相关申请的交叉引用
本申请要求于2017年1月3日递交的中国专利申请第201710001984.9号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。
技术领域
本申请涉及显示技术领域，特别涉及一种触控面板及其制造方法、触控显示装置。
背景技术
随着显示技术的发展，出现了各种各样的触控显示装置。触控显示装置包括：控制单元以及叠加在一起的触控面板和显示面板。
发明内容
为了解决触控显示装置的功能较单一的问题，本申请提供了一种触控面板及其制造方法、触控显示装置。所述技术方案如下：
第一方面，提供了一种触控面板，所述触控面板包括：
衬底基板，
设置在所述衬底基板上的第一触控电极和第二触控电极；
其中，所述第一触控电极位于所述衬底基板的中央区域，所述第二触控电极位于所述衬底基板的边缘区域。
可选的，所述触控面板还包括覆盖所述衬底基板和所述第一触控电极的第一透明绝缘层，并且其中，所述第二触控电极位于所述第一透明绝缘层上。
可选的，所述第二触控电极为条状电极。
可选的，所述条状电极在沿着其延伸方向的两端处的宽度不同。
可选的，所述条状电极的边缘呈锯齿状。
可选的，所述第一触控电极和所述第二触控电极均与控制单元相连接。
可选的，所述触控面板还包括：设置在所述衬底基板上的第一电极线，所述第一电极线将所述第一触控电极连接至所述控制单元；
设置在所述衬底基板的第二电极线，所述第二电极线将所述第二触控电极连接至所述控制单元。
可选的，所述第一触控电极包括：交叉隔离设置的驱动电极和感应电极；
所述第一电极线包括驱动线和感应线，其中，所述驱动线将所述驱动电极连接至所述控制单元，所述感应线将所述感应电极连接至所述控制单元；
覆盖衬底基板和所述驱动电极的第二透明绝缘层，其中，所述感应电极位于所述第二透明绝缘层上。
可选的，所述第一触控电极和所述第二触控电极包括氧化铟锡，所述第一透明绝缘层和所述第二透明绝缘层包括透明树脂。
第二方面，提供了一种触控面板的制造方法，所述方法包括：
在衬底基板上形成第一触控电极和第二触控电极；
其中，所述第一触控电极位于所述衬底基板的中央区域，所述第二触控电极位于所述衬底基板的边缘区域。
可选的，所述在衬底基板上形成第一触控电极和第二触控电极，包括：
在所述衬底基板的中央区域上形成所述第一触控电极；
在所述第一触控电极和所述衬底基板上形成第一透明绝缘层；
在所述衬底基板的所述边缘区域上的所述第一透明绝缘层上形成所述第二触控电极。
可选的，所述第二触控电极为条状电极。
可选的，所述条状电极在沿着其延伸方向的两端处的宽度不同。
可选的，所述方法还包括形成控制单元，其中，所述第一触控电极和 所述第二触控电极均与控制单元相连接。
可选的，在所述衬底基板的中央区域上形成所述第一触控电极包括：
在所述衬底基板上形成述第一触控电极和第一电极线，所述第一触控电极通过所述第一电极线连接至所述控制单元；
并且其中，在所述衬底基板的所述边缘区域上的所述第一透明绝缘层上形成所述第二触控电极包括：
在所述第一透明绝缘层上形成所述第二触控电极和第二电极线，所述第二触控电极通过所述第二电极线连接至所述控制单元。
可选的，所述第一触控电极包括：交叉隔离设置的驱动电极和感应电极，所述第一电极线包括驱动线和感应线，所述驱动线连接将所述驱动电极至所述控制单元，所述感应线将所述感应电极连接至所述控制单元，
所述在所述衬底基板上形成所述第一触控电极和所述第一电极线包括：
在所述衬底基板上形成所述驱动电极和所述驱动线；
在所述驱动电极和所述驱动线上形成第二透明绝缘层；
在形成有所述第二透明绝缘层的衬底基板上形成所述感应电极和感应线。
第三方面，提供了一种触控显示装置，所述触控显示装置包括：第一方面所述的触控面板。
附图说明
为了更清楚地说明本公开文本实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅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为本公开文本实施例提供的一种触控面板的结构示意图；
图2为本公开文本实施例提供的另一种触控面板的结构示意图；
图3为本公开文本实施例提供的一种第二触控电极的结构示意图；
图4为本公开文本实施例提供的一种触控面板的局部结构示意图；
图5为本公开文本实施例提供的一种绑定区域的截面示意图；
图6为本公开文本实施例提供的一种触控面板的制造方法的方法流程图；
图7为本公开文本实施例提供的一种形成触控电极的方法流程图；
图8为本公开文本实施例提供的另一种触控面板的局部结构示意图；
图9为本公开文本实施例提供的又一种触控面板的局部结构示意图；
图10为本公开文本实施例提供的再一种触控面板的局部结构示意图；
图11为本公开文本另一实施例提供的一种触控面板的局部结构示意图；
图12为本公开文本的实施例提供的显示装置的示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
除非上下文中另外明确地指出，否则在本文和所附权利要求中所使用的词语的单数形式包括复数，反之亦然。因而，当提及单数时，通常包括相应术语的复数。相似地，措辞“包含”和“包括”将解释为包含在内而不是独占性地。同样地，术语“包括”和“或”应当解释为包括在内的，除非本文中明确禁止这样的解释。在本文中使用术语“实例”之处，特别是当其位于一组术语之后时，所述“实例”仅仅是示例性的和阐述性的，且不应当被认为是独占性的或广泛性的。
出于下文表面描述的目的，如其在附图中被标定方向那样，术语“上”、“下”、“左”、“右”“垂直”、“水平”、“顶”、“底”及其派生词应涉及公开文本。术语“上覆”、“在……顶上”、“定位在……上”或者“定位在……顶上”意味着诸如第一结构的第一要素存在于诸如第二结构的第二要素上，其中，在第一要素和第二要素之间可存在诸如界面结构的中间要素。术语“接触”意味着连接诸如第一结构的第一要素和诸如第二结构的第二 要素，而在两个要素的界面处可以有或者没有其它要素。
在一种方式中，触控面板包括衬底基板以及形成在衬底基板上的触控层。其中，触控层包括形成在衬底极板的中央区域上的触控电极，以及形成在衬底极板的边缘区域上的电极线，且触控电极通过电极线连接至控制单元。其中，触控面板的中央区域与显示面板的有效显示区域相对应，触控面板的边缘区域与显示面板的非显示区域相对应。控制单元可以通过电极线采集触控电极上的电信号，进而确定位于中央区域的触控电极中被用户触摸的触控电极的位置，并控制显示面板的有效显示区域显示相应的图像，以使得触控显示装置的中央区域(也即触控面板的中央区域)具有触控的功能。
由于一种方式中的触控显示装置中，仅仅中央区域具有触控的功能而边缘区域不具备触控功能，因此，触控显示装置的触控功能较受限。
图1为本公开文本实施例提供的一种触控面板0的结构示意图，如图1所示，该触控面板0可以包括：衬底基板01，衬底基板01上设置有第一触控电极02和第二触控电极03；其中，第一触控电极02位于衬底基板01的中央区域，第二触控电极03位于衬底基板01的边缘区域。第一触控电极02和第二触控电极03均与控制单元1相连接。图1中以第一触动电极02通过第一电极线05而第二触控电极03通过第二电极线06来连接到相同的控制单元为示例。然而，可以理解，第一触控电极和第二触控电极也可以连接到不同的控制单元。
综上所述，由于本公开文本实施例提供的触控面板中，衬底基板的中央区域设置有第一触控电极，衬底基板的边缘区域设置有第二触控电极，从而使得能够分别检测第一触控电极和第二触控电极上的电信号。触控面板所在的触控显示装置的中央区域和边缘区域均具有触控的功能，所以，本发明的实施例至少能够丰富了触控显示装置的功能。
需要说明的是，该控制单元1可以为控制芯片，控制单元1可以与触控面板中的触控电极相连接，并采集每个触控电极上的电信号，进而根据每个触控电极上的电信号，确定触控面板上被触控的位置。
本公开文本实施例中的中央区域可以与相关技术中显示面板的有效显示区域(英文：active area；简称：AA区)相同，本公开文本实施例中的边缘区域可以与相关技术中显示面板的非AA区相同。示例的，该中央区域可以为中心的区域，该中央区域的形状可以为矩形，此时，该边缘区域的形状可以为回字形；该中央区域的形状也可以为圆形，此时，该边缘区域的形状可以为圆环形。
图2为本公开文本实施例提供的另一种触控面板0的结构示意图，如图2所示，衬底基板01的中央区域上设置有第一触控电极02；设置有第一触控电极02的衬底基板01上设置有第一透明绝缘层04；设置有第一透明绝缘层04的衬底基板01的边缘区域上设置有第二触控电极03。也即，在垂直于衬底基板01的方向上，通过第一透明绝缘层04来防止第一触控电极02与第二触控电极03之间的信号串扰；在平行于衬底基板01的方向上，由于第一触控电极02设置在中央区域，而第二触控电极03设置在边缘区域，第一触控电极02与第二触控电极03并不存在重叠部分，因此，也能够实现防止第一触控电极02与第二触控电极03之间的信号串扰。
可选的，由于边缘区域的面积较小，因此，为了减少连接第二触控电极03与控制单元1的引线的数量，可以设置第二触控电极03为条状电极。需要说明的是，衬底基板上用于连接电极与控制单元的导线，均可以称为引线。图3为本公开文本实施例提供的一种第二触控电极03的结构示意图，如图3所示，第二触控电极03的形状可以为条状。由于条状电极的面积较大，使得边缘区域的第二触控电极03的个数较少，从而使得连接第二触控电极03与控制单元1的引线也较少。
进一步的，条状电极在沿着其延伸方向的一端处的宽度可以大于另一端处的宽度，也即条状电极两端处的宽度不同，当用户触摸条状电极的不同区域时，控制单元1采集到的条状电极上的电信号不同，此时，控制单元1可以根据采集到的电信号，确定用户触摸条状电极上的具体位置，在减少边缘区域的第二触控电极03的引线数量的前提下，提高了第二触控电极03的触控精度。
可选的，请继续参考图3，多个条状电极(也即多个第二触控电极03)中每个条状电极在沿着其延伸方向的两端处的宽度均不同。其中，第一条状电极和第二条状电极可以为多个条状电极中任意两个相邻的条状电极，第一条状电极的较宽的一端与第二条状电极较窄的一端相邻，且第一条状电极的较窄的一端与第二条状电极较宽的一端相邻。
示例的，条状电极的边缘可以呈锯齿状。当用户手指同时触摸两个相邻的条状电极的边缘时，若用户手指位于两个相邻的条状电极的正中间，由于条状电极的边缘呈锯齿状，用户的手指在该两个相邻的条状电极上的触摸区域不同。因此，控制单元1检测到的两个条状电极上被触摸的面积不同，控制单元1从而能够更加精确的确定用户触摸的位置，进一步的提高了第二触控电极03的触控精度。
请继续参考图2，衬底基板01上可以设置有第一触控电极02和第一电极线，第一触控电极02通过第一电极线连接至控制单元。在一个实施例中，可以将第一触控电极02和第一电极线称为第一触控层。如图2所示，设置有第一透明绝缘层04的衬底基板01上设置有第二触控电极03和第二电极线06，第二触控电极03通过第二电极线06连接至控制单元。在一个实施例中，可以将第二触控电极03和第二电极线06称为第二触控层。
进一步的，图4为本公开文本实施例提供的一种触控面板0的局部结构示意图，其中，图4为触控面板0的局部结构的俯视图，且图4示出的是触控面板0的中央区域，图2示出的是触控面板0的截面图。请结合图2和图4，第一触控电极02可以包括：交叉隔离设置的驱动电极(也称Tx电极)021和感应电极(也称Rx电极)022(图4中仅仅示出了部分驱动电极和部分感应电极)，第一电极线05包括驱动线051和感应线052，驱动电极021通过驱动线051连接至控制单元，感应电极022通过感应线052连接至控制单元。衬底基板01上设置有驱动电极021和驱动线051；设置有驱动电极021和驱动线051的衬底基板01上设置有第二透明绝缘层07；设置有第二透明绝缘层07的衬底基板01上设置有感应电极022和感应线052。在本公开中，驱动电极021和驱动线051可以被称为驱动电极层，感 应电极022和感应线052可以被称为感应电极层。
图5为本公开文本实施例提供的一种绑定区域的截面示意图，请结合图4和图5，驱动线051、感应线052以及连接边缘区域的第二触控电极的第二电极线06均可以汇聚至图4中的绑定(英文：Bonding)区域M。
也即，本公开文本实施例中，衬底基板上的第一触控电极包括两层电极，分别为驱动电极和感应电极，驱动电极和感应电极分别连接至控制单元，第一触控电极实现触控的方式为互容式触控；衬底基板上的第二触控电极仅仅包括一层电极，且每个第二触控电极均连接至控制单元，第二触控电极实现触控的方式为自容式触控。
实际应用中，第一触控电极还可以仅仅包括一层电极，且每个第一触控电极均连接至控制单元，第一触控电极实现触控的方式为自容式触控；第二触控电极也可以包括两层电极，分别为驱动电极和感应电极，驱动电极和感应电极分别连接至控制单元，第二触控电极实现触控的方式为互容式触控。或者，第一触控电极和第二触控电极均包括一层电极，且每个第一触控电极和每个第二触控电极均连接至控制单元，第一触控电极和第二触控电极实现触控的方式均为自容式触控。或者，第一触控电极和第二触控电极均包括两层电极，第一触控电极包括驱动电极和感应电极，第二触控电极也包括驱动电极和感应电极，第一触控电极和第二触控电极实现触控的方式均为互容式触控。
需要说明的是，本公开文本实施例提供的触控面板可以用于无边框显示屏的触控，也即，可以将本公开文本实施例提供的触控面板与无边框显示面板结合，得到无边框触控显示屏，触控面板中的触控电极(如第一触控电极和第二触控电极)的材质均可以为透明导电材质(如氧化铟锡)，透明绝缘层的材质均可以为透明绝缘材质(如透明树脂)。也即，触控面板的中央区域和边缘区域的所有触控电极和透明绝缘层均为透明材质，该触控面板的透明度较高。且当触控电极的材质为氧化铟锡时，触控电极的导电率较高，触控面板实现触控的效率较高。
当显示屏为内嵌式显示屏时，该触控面板中的衬底基板可以为内嵌式 显示屏的彩膜基板中的衬底基板。当显示屏为外挂式显示屏时，该触控面板中的衬底基板可以设置在彩膜基板的出光侧。
综上所述，由于本公开文本实施例提供的触控面板中，衬底基板的中央区域设置有第一触控电极，衬底基板的边缘区域设置有第二触控电极，从而使得能够分别检测第一触控电极和第二触控电极上的电信号。触控面板所在的触控显示装置的中央区域和边缘区域均具有触控的功能，所以，本发明的实施例至少能够丰富了触控显示装置的功能。
图6为本公开文本实施例提供的一种触控面板的制造方法的方法流程图，如图6所示，该触控面板的制造方法可以包括：
步骤601、在衬底基板上形成第一触控电极和第二触控电极。
其中，第一触控电极位于衬底基板的中央区域，第二触控电极位于衬底基板的边缘区域。
综上所述，由于本公开文本实施例提供的触控面板的制造方法所制造的触控面板中，衬底基板的中央区域设置有第一触控电极，衬底基板的边缘区域设置有第二触控电极，从而使得能够分别检测第一触控电极和第二触控电极上的电信号。触控面板所在的触控显示装置的中央区域和边缘区域均具有触控的功能，所以，丰富了触控显示装置的功能。在一个实施例中，触控面板的制造方法还包括形成控制单元，其中，第一触控电极和第二触控电极可以连接到相同的控制单元，也可以连接到不同的控制单元。
如图7所示，步骤601可以包括：
步骤6011、在衬底基板的中央区域上形成第一触控电极。
在衬底基板上形成第一触控电极时，可以首先在衬底基板上形成第一触控电极和第一电极线，第一触控电极通过第一电极线连接至控制单元。在一个实施例中，第一触控电极可以包括：交叉隔离设置的驱动电极和感应电极，第一电极线包括驱动线和感应线，驱动电极通过驱动线连接至控制单元，感应电极通过感应线连接至控制单元。本公开中，第一触控电极和第一电极线可以被称为第一触控层。
在衬底基板上形成第一触控电极和第一电极线时，可以采取下列方 式：
如图8所示，首先在衬底基板01上形成驱动电极021和驱动线051。示例的，驱动电极021和驱动线051的材质可以相同。
示例地，在形成驱动电极层时，可以采用涂覆、磁控溅射、热蒸发或者等离子体增强化学气相沉积法(英文：Plasma Enhanced Chemical Vapor Deposition；简称：PECVD)等方法在衬底基板01上沉积一层驱动电极材料，得到驱动电极材质层，然后采用一次构图工艺对该驱动电极材质层进行处理就可以得到驱动电极021和驱动线051。其中，一次构图工艺包括：光刻胶涂覆、曝光、显影、刻蚀和光刻胶剥离，因此，采用一次构图工艺对金属材质层进行处理包括：在金属材质层上涂覆一层光刻胶，然后采用掩膜版对光刻胶进行曝光，使光刻胶形成完全曝光区和非曝光区，之后采用显影工艺进行处理，使完全曝光区的光刻胶被去除，非曝光区的光刻胶保留，之后对完全曝光区在金属材质层上的对应区域进行刻蚀，刻蚀完毕后剥离非曝光区的光刻胶即可得到驱动电极和驱动线。
然后，如图9所示，在驱动电极021和驱动线051上形成第二透明绝缘层07。
最后，如图10所示，在形成有第二透明绝缘层07的衬底基板01上形成感应电极022和感应线(图10中未示出)。驱动电极021与感应电极022组成第一触控电极02。示例的，感应电极022和感应线052的材质可以相同。
步骤6012、在第一触控电极和衬底基板上形成第一透明绝缘层。
如图11所示，在步骤6012中，可以在第一触控电极02和衬底基板01上形成第一透明绝缘层04。
步骤6013、在衬底基板的边缘区域上的第一透明绝缘层上形成第二触控电极。
如图2所示，步骤6013中可以在衬底基板01的边缘区域上的第一透明绝缘层04上形成第二触控电极03和第二电极线06，第二触控电极03通过第二电极线06连接至控制单元。示例的，第二触控电极03和第二电 极线06的材质可以相同。在本公开中，第二触控电极03和第二电极线06可以被称为第二触控层。
可选的，由于边缘区域的面积较小，因此，为了减少连接设置在边缘区域的第二触控电极03与控制单元的引线的数量，可以设置第二触控电极03为条状电极。图3为本公开文本实施例提供的一种第二触控电极03的结构示意图，如图3所示，第二触控电极03的形状可以为条状。由于条状电极的面积较大，使得边缘区域的第二触控电极03的个数较少，从而使得连接第二触控电极03与控制单元的引线也较少。进一步的，条状电极在沿着其延伸方向的一端处的宽度可以大于另一端处的宽度，也即条状电极两端处的宽度不同，当用户触摸条状电极的不同区域时，控制单元采集到的条状电极上的电信号不同，此时，控制单元可以根据采集到的电信号，确定用户触摸条状电极上的具体位置，在减少边缘区域第二触控电极03的引线数量的前提下，提高了第二触控电极03的触控精度。
可选的，请继续参考图3，多个条状电极(也即多个第二触控电极03)中每个条状电极两端处的宽度均不同。其中，第一条状电极和第二条状电极可以为多个条状电极中任意两个相邻的条状电极，第一条状电极的较宽的一端与第二条状电极较窄的一端相邻，且第一条状电极的较窄的一端与第二条状电极较宽的一端相邻。示例的，条状电极的边缘可以呈锯齿状，当用户手指同时触摸两个相邻的条状电极的边缘时，若用户手指位于两个相邻的条状电极的正中间，由于条状电极的边缘呈锯齿状，用户的手指在该两个相邻的条状电极上的触摸区域不同。因此，控制单元检测到的两个条状电极上被触摸的面积不同，控制单元从而能够更加精确的确定用户触摸的位置，进一步的提高了第二触控电极03的触控精度。
综上所述，由于本公开文本实施例提供的触控面板的制造方法所制造的触控面板中，衬底基板的中央区域设置有第一触控电极，衬底基板的边缘区域设置有第二触控电极，从而使得能够分别检测第一触控电极和第二触控电极上的电信号。触控面板所在的触控显示装置的中央区域和边缘区域均具有触控的功能，所以，本发明的实施例至少能够丰富了触控显示装 置的功能。
本公开文本实施例提供了一种触控显示装置，该触控显示装置可以包括：图1、图2或图4所示的触控面板。
图12为公开文本的实施例提供的触控显示装置的示意图。图12的触控显示装置2000包括触控基板1000。在图12示出的实施例中，触控基板1000可以包括图1、图2、图4、图8、图9、图10和图11所示的触控面板。
该显示装置可以为：电子纸、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有触控显示功能的产品或部件。
综上所述，由于本公开文本实施例提供的触控显示装置中的触控面板中，衬底基板的中央区域设置有第一触控电极，衬底基板的边缘区域设置有第二触控电极，从而使得能够可以分别检测第一触控电极和第二触控电极上的电信号。触控面板所在的触控显示装置的中央区域和边缘区域均具有触控的功能，所以，本发明的实施例至少能够丰富了触控显示装置的功能。
本公开文本实施例提供的触控面板实施例、触控面板的制造方法实施例以及触控显示装置实施例均可以互相参考，本公开文本实施例对此不作限定。
以上所述仅为本申请的较佳实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (17)

  1. 一种触控面板，其中，所述触控面板包括：
    衬底基板；
    设置在所述衬底上的第一触控电极和第二触控电极，
    其中，所述第一触控电极位于所述衬底基板的中央区域，所述第二触控电极位于所述衬底基板的边缘区域。
  2. 根据权利要求1所述的触控面板，其中，
    所述触控面板还包括覆盖所述衬底基板和所述第一触控电极的第一透明绝缘层，并且其中，所述第二触控电极位于所述第一透明绝缘层上。
  3. 根据权利要求1或2所述的触控面板，其中，
    所述第二触控电极为条状电极。
  4. 根据权利要求3所述的触控面板，其中，
    所述条状电极在沿着其延伸方向的两端处的宽度不同。
  5. 根据权利要求3所述的触控面板，其中，
    所述条状电极的边缘呈锯齿状。
  6. 根据权利要求2-5中任一项所述的触控面板，其中，所述第一触控电极和所述第二触控电极均与控制单元相连接。
  7. 根据权利要求6所述的触控面板，其中，所述触控面板还包括：
    设置在所述衬底基板上的第一电极线，所述第一电极线将所述第一触控电极连接至所述控制单元；
    设置在所述衬底基板上的第二电极线，所述第二电极线将所述第二触控电极连接至所述控制单元。
  8. 根据权利要求7所述的触控面板，其中，
    所述第一触控电极包括交叉隔离设置的驱动电极和感应电极；
    所述第一电极线包括驱动线和感应线，其中，所述驱动线将所述驱动电极连接至所述控制单元，所述感应线将所述感应电极连接至所述控制单元；
    覆盖所述衬底基板和所述驱动电极的第二透明绝缘层，其中，所述感 应电极位于所述第二透明绝缘层上。
  9. 根据权利要求1-8中任一项所述的触控面板，其中，
    所述第一触控电极和所述第二触控电极包括氧化铟锡；
    所述第一透明绝缘层和所述第二透明绝缘层包括透明树脂。
  10. 一种触控面板的制造方法，其中，所述方法包括：
    在衬底基板上形成第一触控电极和第二触控电极；
    其中，所述第一触控电极位于所述衬底基板的中央区域，所述第二触控电极位于所述衬底基板的边缘区域。
  11. 根据权利要求10所述的方法，其中，
    在所述衬底基板上形成所述第一触控电极和所述第二触控电极包括：
    在所述衬底基板的所述中央区域上形成所述第一触控电极；
    在所述第一触控电极和所述衬底基板上形成第一透明绝缘层；
    在所述衬底基板的所述边缘区域上的所述第一透明绝缘层上形成所述第二触控电极。
  12. 根据权利要求10或11所述的方法，其中，
    所述第二触控电极为条状电极。
  13. 根据权利要求12所述的方法，其中，
    所述条状电极在沿着其延伸方向的两端处的宽度不同。
  14. 根据权利要求11-13中任一项所述的方法，还包括形成控制单元，其中，所述第一触控电极和所述第二触控电极均与控制单元相连接。
  15. 根据权利要求14所述的方法，在所述衬底基板的中央区域上形成所述第一触控电极包括：
    在所述衬底基板上形成所述第一触控电极和第一电极线，所述第一触控电极通过所述第一电极线连接至所述控制单元；
    并且其中，在所述衬底基板的所述边缘区域上的所述第一透明绝缘层上形成所述第二触控电极包括：
    在所述第一透明绝缘层上形成所述第二触控电极和第二电极线，所述第二触控电极通过所述第二电极线连接至所述控制单元。
  16. 根据权利要求15所述的方法，其中，
    所述第一触控电极包括交叉隔离设置的驱动电极和感应电极；
    所述第一电极线包括驱动线和感应线，所述驱动线将所述驱动电极连接至所述控制单元，所述感应线将所述感应电极连接至所述控制单元；
    在所述衬底基板上形成所述第一触控电极和所述第一电极线包括：
    在所述衬底基板上形成所述驱动电极和所述驱动线；
    在所述驱动电极和所述驱动线上形成第二透明绝缘层；
    在所述第二透明绝缘层上形成所述感应电极和感应线。
  17. 一种触控显示装置，其中，所述触控显示装置包括：根据权利要求1至9任一所述的触控面板。
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