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WO2016095504A1 - 触摸显示面板及其驱动方法、触摸显示装置 - Google Patents

触摸显示面板及其驱动方法、触摸显示装置 Download PDF

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Publication number
WO2016095504A1
WO2016095504A1 PCT/CN2015/083641 CN2015083641W WO2016095504A1 WO 2016095504 A1 WO2016095504 A1 WO 2016095504A1 CN 2015083641 W CN2015083641 W CN 2015083641W WO 2016095504 A1 WO2016095504 A1 WO 2016095504A1
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WO
WIPO (PCT)
Prior art keywords
touch
electrode
sub
sensing
driving
Prior art date
Application number
PCT/CN2015/083641
Other languages
English (en)
French (fr)
Inventor
赵卫杰
董学
王海生
刘英明
Original Assignee
京东方科技集团股份有限公司
北京京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 北京京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to EP15869015.6A priority Critical patent/EP3236342B1/en
Priority to US15/306,145 priority patent/US10268307B2/en
Publication of WO2016095504A1 publication Critical patent/WO2016095504A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • 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
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • 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
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • 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
    • G06F3/0446—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
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136218—Shield electrodes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • G02F1/13685—Top gates
    • 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
    • G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds

Definitions

  • the present disclosure relates to the field of display, and in particular to a touch display panel, a driving method thereof, and a touch display device.
  • the composition of the touch screen it can be divided into an add-on touch panel (On-line Touch Panel), an on-cell touch panel (On Cell Touch Panel), and an in-cell touch panel (In Cell Touch Panel).
  • the in-cell touch panel is configured to set the touch electrode of the touch screen inside the liquid crystal display, thereby reducing the thickness of the whole module and greatly reducing the manufacturing cost of the touch screen.
  • the finger needs to be touched on the display side of the touch display device, which affects the user's field of view.
  • the present disclosure provides a touch display panel and a driving method thereof, and a touch display device for realizing double-sided touch of a touch display device having an in-cell touch panel.
  • the present disclosure provides a touch display panel, including: an array substrate and a counter substrate, a touch driving electrode, a first touch sensing electrode, and a second touch sensing electrode, wherein the first touch sensing electrodes are located in the pair
  • the second touch sensing electrode is located on the array substrate, the touch driving electrode is located between the first touch sensing electrode and the second touch sensing electrode, and the touch driving electrode is A touch sensing electrode and a second touch sensing electrode respectively form a mutual capacitance.
  • the array substrate and the pair of cassette substrates each include a base substrate, and the touch drive electrodes are located on a side of the base substrate of the array substrate facing the pair of cassette substrates, the first touch The sensing electrode is located on a side of the base substrate of the pair of substrates facing the array substrate or a side facing away from the array substrate, and the second touch sensing electrode is located on the substrate of the array substrate.
  • the array substrate further includes: a common electrode
  • the touch driving electrode includes: a first touch driving electrode, wherein the first touch driving electrode and the common electrode are disposed in the same material.
  • the touch driving electrode further includes: a second touch driving electrode, the second touch driving electrode and the first touch driving electrode are located in different layers, wherein the first touch driving electrode and the first The touch sensing electrodes form a mutual capacitance, and the second touch driving electrodes form a mutual capacitance with the second touch sensing electrodes.
  • the array substrate further includes: a thin film transistor, wherein the second touch driving electrode is a light shielding strip located between the substrate substrate of the array substrate and the thin film transistor and blocking the channel of the thin film transistor.
  • the second touch driving electrode is a light shielding strip located between the substrate substrate of the array substrate and the thin film transistor and blocking the channel of the thin film transistor.
  • the first touch driving electrode and the second touch driving electrode are electrically connected.
  • the first touch driving electrode comprises: a plurality of first sub-driving electrodes arranged in parallel, the second touch driving electrodes comprising a plurality of second sub-driving electrodes arranged in parallel, the first sub-driving electrodes and corresponding The second sub-drive electrode is electrically connected.
  • the first touch sensing electrode comprises: a plurality of first sub sensing electrodes arranged in parallel
  • the second touch sensing electrode comprises a plurality of second sub sensing electrodes arranged in parallel
  • the first sub sensing electrodes and The number and arrangement of the second sub-sensing electrodes are the same, and one-to-one correspondence, each of the first sub-sensing electrodes is connected to a second sub-sensing electrode at a corresponding position; the first sub-child The sensing electrode and the first sub-driving electrode intersect with each other, and form a mutual capacitance at the intersection of the different surfaces; the second sub-sensing electrode and the second sub-driving electrode intersect at different sides, and form at the intersection of the opposite faces Mutual capacitance.
  • the first touch sensing electrode comprises: a plurality of first sub sensing electrodes arranged in parallel
  • the second touch sensing electrode comprises a plurality of second sub sensing electrodes arranged in parallel
  • the first sub sensing electrodes and
  • the number and arrangement of the second sub-sensing electrodes are the same, and one-to-one correspondence, each of the first sub-sensing electrodes is connected to one of the second sub-sensing electrodes at a corresponding position.
  • each of the first sub-sensing electrodes and one of the second sub-sensing electrodes at corresponding positions are flexible on a side of the array substrate by a flexible circuit board located on one side of the pair of substrate substrates
  • the circuit board and the connecting line for connecting the two flexible circuit boards are connected, and the connecting line includes a plurality of sub connecting lines, each of the sub connecting lines corresponding to a first sub sensing electrode and a second sub sensing electrode.
  • the present disclosure also provides a touch display device including the above touch display panel.
  • the present disclosure also provides a driving method of a touch display panel, which is applied to the touch display panel described above, and includes:
  • the touch driving electrode includes: a first touch driving electrode and a second touch driving electrode, the first touch driving electrode and the first touch sensing electrode form a mutual capacitance, and the second touch driving electrode and the The second touch sensing electrode forms a mutual capacitance;
  • the step of loading the touch drive electrode with the touch drive signal is:
  • the first touch drive electrode and the second touch drive electrode are loaded with the same or different touch drive signals.
  • the driving method of the touch display panel further includes:
  • the present disclosure further provides a touch display panel, including: an array substrate and a counter substrate, a first touch driving electrode, a second touch driving electrode, a first touch sensing electrode, and a second touch sensing electrode;
  • the first touch sensing electrode is located on the pair of substrate, and the second touch sensing electrode is located on the array substrate;
  • the first touch driving electrode and the second touch driving electrode are disposed differently between the first touch sensing electrode and the second touch sensing electrode, and the first touch driving electrode and The first touch sensing electrode constitutes a first touch structure, and the second touch driving electrode and the second touch sensing electrode constitute a second touch structure;
  • the first touch structure and the second touch structure are located on two sides of the touch display panel.
  • the first touch driving electrode comprises: a plurality of first sub-driving electrodes arranged in parallel, the second touch driving electrodes comprising a plurality of second sub-driving electrodes arranged in parallel; the first touch sensing electrodes comprising: a plurality of first sub-sensing electrodes arranged in parallel, the second touch sensing electrode includes a plurality of second sub-sensing electrodes arranged in parallel, and the number and arrangement of the first sub-sensing electrodes and the second sub-sensing electrodes
  • the first sub-sensing electrodes are connected to one of the second sub-sensing electrodes at corresponding positions; the first sub-sensing electrodes and the first sub-driving electrodes are different in plane. Intersecting, and forming a mutual capacitance at the intersection of the opposite faces; the second sub-sensing electrode and the second sub-driving electrode intersecting each other and forming a mutual capacitance at the intersection of the opposite faces.
  • the first sub-drive electrode is electrically connected to the corresponding second sub-drive electrode.
  • the present disclosure further provides a driving method for a touch display panel, which is applied to the touch display panel, and includes: determining whether the touch display panel is in a single-sided touch mode or a double-sided touch mode;
  • the touch display panel When the touch display panel is in the single-sided touch mode, it is further determined that the first touch structure or the second touch structure is selected to perform a touch operation;
  • the second touch structure When the first touch structure is selected to perform a touch operation, the second touch structure is closed, a touch driving signal is loaded on the first touch driving electrode, and the first touch sensing electrode is detected.
  • the first touch sensing signal coupled by the mutual capacitance between the first touch driving electrodes determines the touch position information according to the change of the first touch sensing signal;
  • the first touch structure is closed, a touch driving signal is loaded on the second touch driving electrode, and the second touch sensing electrode is detected.
  • a second touch sensing signal coupled to the mutual capacitance between the second touch driving electrodes, and determining touch position information according to the change of the second touch sensing signal;
  • Touch location information is determined according to changes in the first touch sensing signal and the second touch sensing signal.
  • the two-sided touch can be achieved by the two touch sensing electrodes respectively located on the array substrate and the counter substrate and the touch driving electrodes located between the two touch sensing electrodes.
  • FIG. 1 is a schematic diagram of a setting manner of a touch driving electrode and a touch sensing electrode of a touch display panel according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of a setting manner of a touch driving electrode and a touch sensing electrode of a touch display panel according to another embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of a touch sensing electrode of a display panel according to an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of a touch display panel according to an embodiment of the present disclosure.
  • An embodiment of the present disclosure provides a touch display panel, including: an array substrate and a counter substrate, a touch driving electrode, a first touch sensing electrode, and a second touch sensing electrode, wherein the first touch sensing electrode is located at the On the opposite substrate, the second touch sensing electrode is located on the array substrate, and the touch driving electrode is located between the first touch sensing electrode and the second touch sensing electrode, where the touch driving electrodes are respectively Intersecting the first touch sensing electrode and the second touch sensing electrode, and the touch driving electrode and the first touch sensing electrode and the second touch sensing electrode respectively form a mutual capacitance.
  • the touch driving electrode is configured to receive a touch driving signal during a touch phase.
  • the first touch sensing electrode and the second touch sensing electrode are configured to couple the touch driving signal by mutual capacitance with the touch driving electrode during the touch phase to obtain a touch sensing signal and output the touch sensing signal.
  • the mutual capacitance is formed at a intersection of the different surfaces of the touch driving electrode and the touch sensing electrode.
  • the touch driving electrode Tx and the touch sensing electrode Rx are in static balance, and the mutual capacitance is Co.
  • the fingers respectively The touch driving electrode Tx and the touch sensing electrode Rx generate a coupling capacitance such that the capacitance of the sensing unit changes to (Co+ ⁇ C), and by the progressive scanning of the touch driving electrode Tx, the signal outputted by the touch sensing electrode Rx reacts quickly.
  • You can get the corresponding touch point position that is, the row coordinates and column coordinates of the touch point).
  • the two-sided touch can be achieved by the two touch sensing electrodes respectively located on the array substrate and the counter substrate and the touch driving electrodes located between the two touch sensing electrodes.
  • the array substrate and the pair of substrate substrates each comprise a base substrate
  • the touch drive electrodes are located on a side of the base substrate of the array substrate facing the pair of cassette substrates
  • the first touch sensing The electrode is located on a side of the base substrate of the counter substrate facing the array substrate or a side facing away from the array substrate
  • the second touch sensing electrode is located on the base substrate of the array substrate facing the One side of the cassette substrate or a side facing away from the pair of cassette substrates.
  • the touch display panel may include only one layer of touch driving electrodes, and the touch driving electrodes may form mutual capacitance with the first touch sensing electrodes and the second touch sensing electrodes on both sides thereof to achieve double Face touch.
  • the touch drive electrodes can be individually located on one layer and formed using a separate patterning process. Of course, in order to save the process, it may be formed by using the same film layer as one layer of the array substrate, and formed by the same patterning process.
  • the array substrate further includes: a common electrode
  • the touch driving electrode includes: a first touch driving electrode, wherein the first touch driving electrode and the common electrode are disposed in the same material.
  • the touch driving electrode and the common electrode are disposed in the same material, that is, the touch driving electrode and the common electrode adopt the same film layer, and are formed by the same patterning process, thereby saving cost.
  • the first touch driving electrode includes a plurality of first sub driving electrodes
  • the common electrode includes a plurality of sub common electrodes
  • the first sub driving electrodes and the sub common electrodes are insulated and disposed in a frame.
  • the first sub-driving electrode loads the common electrode signal and the touch driving signal in a time-sharing manner.
  • the touch and display phases adopt a time-sharing driving method
  • the display driving and the touch driving chip can be integrated into one body to reduce the production cost; on the other hand, the time-division driving can also reduce the display and touch. Control mutual interference to improve picture quality and touch accuracy.
  • the time for displaying each frame may be divided into a display period and a touch period in which the touch driving electrode Tx is used as a common electrode, and the IC chip connected to the touch driving electrode supplies a constant common electrode signal thereto. , to achieve display capabilities.
  • the IC chip connected to the touch driving electrode respectively provides a touch driving signal to each of the touch driving electrodes, and each of the touch sensing electrodes respectively detects the touch sensing signal to implement the touch function.
  • the common electrode always loads the common electrode signal during the display time period and the touch time period, or loads the common electrode signal to each common electrode during the display time period, and the common electrodes are grounded or suspended during the touch time period, and the floating electrode is suspended. Processing means no signal input.
  • FIG. 1 is a schematic diagram showing a manner of setting a touch driving electrode and a touch sensing electrode of a touch display panel according to an embodiment of the present disclosure.
  • the touch display panel includes: an array substrate 100 and a counter substrate 200, and the array substrate 100 includes a lining. a bottom substrate 101, a first touch driving electrode 102 on a side of the base substrate 101 facing the counter substrate 200, and a second touch sensing electrode on a side of the base substrate 101 facing away from the counter substrate 200 103.
  • the counter substrate 200 includes a base substrate 201 and a first touch sensing electrode 202 on a side of the base substrate 201 facing away from the array substrate 100.
  • the first touch driving electrode 102 is disposed in the same material as the common electrode of the array substrate 100.
  • the touch display panel may further include two layers of touch driving electrodes respectively forming mutual capacitance with one of the two touch sensing electrodes to implement double-sided touch.
  • the touch driving electrode in the embodiment of the present disclosure may further include: a second touch driving electrode, the second touch driving electrode and the first touch driving electrode are located at different layers, in addition to the first touch driving electrode The first touch driving electrode and the first touch sensing The electrodes form a mutual capacitance, and the second touch driving electrodes form a mutual capacitance with the second touch sensing electrodes.
  • the array substrate may further include: a substrate on the substrate of the array substrate and The light-shielding strips of the thin film transistor channel are blocked between the thin film transistors.
  • the light shielding strip may be made of a metal material. In the embodiment of the present disclosure, the light shielding strip may be used as the second touch driving electrode to save cost.
  • top gate thin film transistor in the embodiment of the present disclosure may be a low temperature polysilicon thin film transistor.
  • a layer of second touch driving electrodes may also be separately prepared.
  • FIG. 2 is a schematic diagram of a setting manner of a touch driving electrode and a touch sensing electrode of a touch display panel according to another embodiment of the present disclosure.
  • the touch display panel includes: an array substrate 100 and a counter substrate 200, and the array substrate 100 includes The base substrate 101 is located on the first touch driving electrode 102 and the second touch driving electrode 104 on the side of the base substrate 101 facing the counter substrate 200, and the back substrate 101 facing away from the counter substrate 200
  • the second touch sensing electrode 103 on one side, the counter substrate 200 includes a base substrate 201 and a first touch sensing electrode 202 on a side of the base substrate 201 facing away from the array substrate 100.
  • the first touch driving electrode 102 is disposed in the same material as the common electrode of the array substrate 100.
  • the second touch driving electrode 104 is a light shielding strip located between the base substrate of the array substrate and the thin film transistor and blocking the channel of the thin film transistor.
  • the first touch driving electrode 102 and the first touch sensing electrode 202 form a mutual capacitance
  • the second touch driving electrode 104 and the second touch sensing electrode 103 form a mutual capacitance to realize double-sided touch.
  • the signal portion of the first touch driving electrode is shielded by the gate line or the data line between the first touch driving electrode and the second touch sensing electrode 103, thereby affecting the touch effect.
  • the second touch driving electrode 104 is added, and the second touch driving electrode 104 is provided with the touch driving signal for the second touch sensing electrode 103, thereby optimizing the touch effect.
  • the use of the existing light shielding strip as the second touch driving electrode 104 can also save cost.
  • the first touch driving electrode and the second touch driving electrode are connected to reduce the resistance of the touch driving electrode.
  • the first touch driving electrode comprises: a plurality of first sub-driving electrodes arranged in parallel, the second touch driving electrodes comprising a plurality of second sub-driving electrodes arranged in parallel, the first sub-driving electrodes and corresponding The second sub-drive electrode is electrically connected.
  • the first sub-driving electrode and the corresponding second sub-driving electrode may be connected by a via hole or may be connected by an electrical connection line located in a peripheral area.
  • a first touch driving electrode 102 is electrically connected to a corresponding plurality of light blocking strips (second touch driving electrodes 104). That is, one touch drive electrode includes a first touch drive electrode 102 and a corresponding plurality of second touch drive electrodes 104.
  • the first touch sensing electrode comprises: a plurality of first sub sensing electrodes arranged in parallel
  • the second touch sensing electrode comprises a plurality of second sub sensing electrodes arranged in parallel
  • the first sub sensing electrodes and
  • the number and arrangement of the second sub-sensing electrodes are the same, and one-to-one correspondence, each of the first sub-sensing electrodes is connected to a corresponding one of the second sub-sensing electrodes, and the structure can ensure two-sided With the same touch position, the resistance of the touch sensing electrode can also be reduced.
  • the first sub-sensing electrode and the first sub-driving electrode intersect each other, and mutual capacitance is formed at the intersection of the different surfaces
  • the second sub-sensing electrode and the second sub-driving electrode intersect each other, and mutually intersect at the intersection of the opposite faces capacitance.
  • each of the first sub-sensing electrodes and one of the second sub-sensing electrodes at corresponding positions are located on a side of the array substrate by a flexible circuit board (FPC) located on one side of the pair of card substrates
  • FPC flexible circuit board
  • the flexible circuit board and the connecting line for connecting the two flexible circuit boards, the connecting line includes a plurality of sub connecting lines, each of the sub connecting lines corresponding to a first sub sensing electrode and a second sub sensing electrode.
  • FIG. 3 is a schematic structural diagram of a touch sensing electrode of a display panel according to an embodiment of the present disclosure.
  • the display panel includes an array substrate 100 and a counter substrate 200.
  • the array substrate 100 includes a base substrate 101 and a second touch sensing electrode.
  • the counter substrate 200 includes a base substrate 201 and a first touch sensing electrode 202.
  • the first touch sensing electrode 202 includes a plurality of first sub sensing electrodes 31 arranged in parallel
  • the second touch sensing electrode 103 includes a plurality of second sub sensing electrodes 32 arranged in parallel.
  • the number and arrangement of the first sub-sensing electrode 31 and the second sub-sensing electrode 32 are the same, and one-to-one correspondence, each of the first sub-sensing electrodes 31 and the corresponding one of the second sub-children
  • the sensing electrode 32 is connected by a flexible circuit board 33 on one side of the counter substrate 200, a flexible circuit board 34 on the side of the array substrate 100, and a connecting line 35 for connecting two flexible circuit boards.
  • the line 35 includes a plurality of sub-connection lines 351, and each of the sub-connection lines 351 corresponds to a first sub-sensing electrode 31 and a second sub-sensing electrode 32.
  • the touch display panel in the above embodiment may be a liquid crystal display panel.
  • the pair of cassette substrates are color film substrates.
  • the touch display panel of the embodiment of the present disclosure may also be other types of display panels, such as an organic light emitting diode display panel.
  • touch display panel as a liquid crystal display panel.
  • the structure of the touch display panel of the embodiment of the present disclosure will be described.
  • FIG. 4 is a schematic structural diagram of a touch display panel according to an embodiment of the present disclosure.
  • the touch display panel includes: an array substrate 100 , a color filter substrate 200 , and a liquid crystal between the array substrate 100 and the color filter substrate 200 .
  • Layer 400 is a schematic structural diagram of a touch display panel according to an embodiment of the present disclosure.
  • the array substrate 100 includes a base substrate 101, a second touch driving electrode (light shielding strip) 104 on the side of the base substrate 101 facing the color filter substrate 200, a first insulating layer 105, an active layer 106, and a gate insulating layer 107. a gate electrode 108, a second insulating layer 109, a source/drain electrode 110, a third insulating layer 111, a first touch driving electrode 102, a passivation layer 112, a pixel electrode 113, and a first alignment layer 114, and a substrate 101
  • the second touch sensing electrode 103 and the first polarizer 115 are facing away from one side of the color filter substrate 200.
  • the color filter substrate 200 includes a base substrate 201, a black matrix 203 on the side of the base substrate 201 facing the array substrate 100, a color resist 204 and a second alignment layer 205, and a substrate substrate 201 facing away from the array substrate 100.
  • the first touch sensing electrode 202 and the second polarizer 206 on one side.
  • the first touch sensing electrode 202 and the first touch driving electrode 102 form a mutual capacitance
  • the second touch sensing electrode 103 and the second touch driving electrode 104 form a mutual capacitance to form a double-sided touch.
  • An embodiment of the present disclosure further provides a touch display device including the above touch display panel.
  • the touch display device of the embodiment of the present disclosure When the touch display device of the embodiment of the present disclosure is used, the user can touch the back of the hand by hand, so that the front view is not affected, and the effect of flexible use can be achieved.
  • the touch display device of the embodiment of the present disclosure can also display the touch display device on both sides, that is, the functions of display and touch can be realized on both sides.
  • the embodiment of the present disclosure further provides a driving method of the touch display panel, which is applied to the touch display panel in any of the above embodiments, and includes:
  • Step S1 loading a touch driving signal on the touch driving electrode
  • Step S2 detecting that the first touch sensing electrode and/or the second touch sensing electrode are coupled to the touch sensing signal through mutual capacitance with the touch driving electrode, and determining according to the change of the touch sensing signal. Touch location information.
  • the touch driving electrode includes: a first touch driving electrode and a second touch driving electrode, the first touch driving electrode and the first touch sensing electrode form a mutual capacitance, and the second touch driving electrode and the The second touch sensing electrode forms a mutual capacitance; that is, the first touch driving electrode and the first touch sensing electrode form a touch structure, and the second touch driving electrode and the second touch sensing electrode form a touch structure.
  • the step of loading the touch drive electrode with the touch drive signal is:
  • the first touch drive electrode and the second touch drive electrode are loaded with the same or different touch drive signals.
  • the first touch driving electrode and the first touch sensing electrode form a touch structure
  • the second touch driving electrode and the second touch sensing electrode form a touch structure.
  • only one single can be used at the same time.
  • the touch structure is closed, and the other touch structure is closed to realize single-sided touch, or at the same time, two touch structures are simultaneously used to realize double-sided touch.
  • only one touch structure for example, only the touch structure composed of the first touch driving electrode and the first touch sensing electrode is used, only the touch driving signal may be loaded to the first touch driving electrode instead of the first The two touch drive electrodes load the touch drive signal.
  • the two touch structures are used at the same time, it is necessary to simultaneously load the touch drive signals to the first touch drive electrodes and the second touch drive electrodes, and the touch drive signals loaded to the first touch drive electrodes and the second touch drive electrodes may be the same. , can also be different.
  • the first touch driving electrode and the second touch driving electrode may also be connected, at this time, to the first touch driving electrode and the second touch driving electrode.
  • the loaded touch drive signals are the same.
  • the driving method of the touch display panel of the embodiment of the present disclosure further includes: providing a touch sensing signal for the first touch sensing electrode and the second touch sensing electrode during the touch phase, and the first touch sensing during the display phase
  • the electrode and the second touch sensing electrode provide a zero voltage to remove static electricity on the first touch sensing electrode and the second touch sensing electrode.

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Abstract

本公开提供一种触摸显示面板及其驱动方法、触摸显示装置，该触摸显示面板包括：相对设置的阵列基板和对盒基板，触摸驱动电极，第一触摸感应电极和第二触摸感应电极，其中，所述第一触摸感应电极位于所述对盒基板上，所述第二触摸感应电极位于所述阵列基板上，所述触摸驱动电极位于所述第一触摸感应电极和所述第二触摸感应电极之间，且所述触摸驱动电极与第一触摸感应电极和第二触摸感应电极分别形成互电容。本公开可以达到双面触控的目的。

Description

触摸显示面板及其驱动方法、触摸显示装置
相关申请的交叉引用
本申请主张在2014年12月16日在中国提交的中国专利申请号No.201410781935.8的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及显示领域，特别是涉及一种触摸显示面板及其驱动方法、触摸显示装置。
背景技术
触摸屏按照组成结构可以分为：外挂式触摸屏(Add on Mode Touch Panel)，覆盖表面式触摸屏(On Cell Touch Panel)，以及内嵌式触摸屏(In Cell Touch Panel)。其中，内嵌式触摸屏是将触摸屏的触摸电极设置在液晶显示屏的内部，可以减薄模组整体的厚度，又可以大大降低触摸屏的制作成本。
现有的具有内嵌式触摸屏的触摸显示装置在使用时，手指需要在触摸显示装置的显示侧触控，这样会影响用户的视野。
发明内容
有鉴于此，本公开提供了一种触摸显示面板及其驱动方法、触摸显示装置，用于实现具有内嵌式触摸屏的触摸显示装置的双面触控。
本公开提供一种触摸显示面板，包括：相对设置的阵列基板和对盒基板，触摸驱动电极，第一触摸感应电极和第二触摸感应电极，其中，所述第一触摸感应电极位于所述对盒基板上，所述第二触摸感应电极位于所述阵列基板上，所述触摸驱动电极位于所述第一触摸感应电极和所述第二触摸感应电极之间，且所述触摸驱动电极与第一触摸感应电极和第二触摸感应电极分别形成互电容。
优选地，所述阵列基板和所述对盒基板均包括一衬底基板，所述触摸驱动电极位于所述阵列基板的衬底基板朝向所述对盒基板的一侧，所述第一触 摸感应电极位于所述对盒基板的衬底基板朝向所述阵列基板的一侧或者背向所述阵列基板的一侧，所述第二触摸感应电极位于所述阵列基板的衬底基板朝向所述对盒基板的一侧或者背向所述对盒基板的一侧。
优选地，所述阵列基板还包括：公共电极，所述触摸驱动电极包括：第一触摸驱动电极，所述第一触摸驱动电极和所述公共电极同层同材料设置。
优选地，所述触摸驱动电极还包括：第二触摸驱动电极，所述第二触摸驱动电极和所述第一触摸驱动电极位于不同层，其中，所述第一触摸驱动电极与所述第一触摸感应电极形成互电容，所述第二触摸驱动电极与所述第二触摸感应电极形成互电容。
优选地，所述阵列基板还包括：薄膜晶体管，所述第二触摸驱动电极为位于所述阵列基板的衬底基板与所述薄膜晶体管之间并遮挡所述薄膜晶体管沟道的遮光条。
优选地，所述第一触摸驱动电极和所述第二触摸驱动电极电连接。
优选地，所述第一触摸驱动电极包括：多个平行排列第一子驱动电极，所述第二触摸驱动电极包括多个平行排列的第二子驱动电极，所述第一子驱动电极与对应的第二子驱动电极电连接。
优选地，所述第一触摸感应电极包括：多个平行排列的第一子感应电极，所述第二触摸感应电极包括多个平行排列的第二子感应电极，所述第一子感应电极与所述第二子感应电极的个数和排列方式均相同，且一一对应，每一所述第一子感应电极与对应位置处的一所述第二子感应电极连接；所述第一子感应电极和所述第一子驱动电极异面相交，并于异面相交处形成互电容；所述第二子感应电极和所述第二子驱动电极异面相交，并于异面相交处形成互电容。
优选地，所述第一触摸感应电极包括：多个平行排列的第一子感应电极，所述第二触摸感应电极包括多个平行排列的第二子感应电极，所述第一子感应电极与所述第二子感应电极的个数和排列方式均相同，且一一对应，每一所述第一子感应电极与对应位置处的一所述第二子感应电极连接。
优选地，每一所述第一子感应电极与对应位置处的一所述第二子感应电极借由位于所述对盒基板一侧的柔性电路板、位于所述阵列基板一侧的柔性 电路板及用于连接两柔性电路板的连接线连接，所述连接线包括多条子连接线，每一子连接线对应一第一子感应电极和一第二子感应电极。
本公开还提供一种触摸显示装置，包括上述触摸显示面板。
本公开还提供一种触摸显示面板的驱动方法，应用于上述的触摸显示面板，包括：
对所述触摸驱动电极加载触控驱动信号；
检测所述第一触摸感应电极和/或所述第二触摸感应电极通过与所述触摸驱动电极之间的互电容耦合出的触控感应信号，根据该触控感应信号的变化，确定触摸位置信息。
优选地，所述触摸驱动电极包括：第一触摸驱动电极和第二触摸驱动电极，所述第一触摸驱动电极和所述第一触摸感应电极形成互电容，所述第二触摸驱动电极和所述第二触摸感应电极形成互电容；
所述对所述触摸驱动电极加载触控驱动信号的步骤为：
对所述第一触摸驱动电极或所述第二触摸驱动电极加载触控驱动信号；或者
对所述第一触摸驱动电极和所述第二触摸驱动电极加载相同或不同的触控驱动信号。
优选地，所述触摸显示面板的驱动方法还包括：
在触控阶段为所述第一触摸感应电极和所述第二触摸感应电极提供触控感应信号，在显示阶段为所述第一触摸感应电极和所述第二触摸感应电极提供零电压，以消除所述第一触摸感应电极和所述第二触摸感应电极上的静电。
本公开还提供一种触摸显示面板，包括：相对设置的阵列基板和对盒基板，第一触摸驱动电极、第二触摸驱动电极、第一触摸感应电极和第二触摸感应电极；
其中，所述第一触摸感应电极位于所述对盒基板上，所述第二触摸感应电极位于所述阵列基板上；
所述第一触摸驱动电极和所述第二触摸驱动电极不同层地设置在所述第一触摸感应电极和所述第二触摸感应电极之间，且所述第一触摸驱动电极和 所述第一触摸感应电极组成第一触控结构，所述第二触摸驱动电极和所述第二触摸感应电极组成第二触控结构；
所述第一触控结构和所述第二触控结构位于所述触摸显示面板的两面。
优选地，所述第一触摸驱动电极包括：多个平行排列第一子驱动电极，所述第二触摸驱动电极包括多个平行排列的第二子驱动电极；所述第一触摸感应电极包括：多个平行排列的第一子感应电极，所述第二触摸感应电极包括多个平行排列的第二子感应电极，所述第一子感应电极与所述第二子感应电极的个数和排列方式均相同，且一一对应，每一所述第一子感应电极与对应位置处的一所述第二子感应电极连接；所述第一子感应电极和所述第一子驱动电极异面相交，并于异面相交处形成互电容；所述第二子感应电极和所述第二子驱动电极异面相交，并于异面相交处形成互电容。
优选地，所述第一子驱动电极与对应的第二子驱动电极电连接。
本公开还提供一种触摸显示面板的驱动方法，应用于上述触摸显示面板，包括：判断所述触摸显示面板处于单面触控模式还是双面触控模式；
当所述触摸显示面板处于单面触控模式时，进一步判断所述第一触控结构还是所述第二触控结构被选择进行触控操作；
当所述第一触控结构被选择进行触控操作时，关闭所述第二触控结构，对所述第一触摸驱动电极加载触控驱动信号，检测所述第一触摸感应电极通过与所述第一触摸驱动电极之间的互电容耦合出的第一触控感应信号，根据该第一触控感应信号的变化，确定触摸位置信息；
当所述第二触控结构被选择进行触控操作时，关闭所述第一触控结构，对所述第二触摸驱动电极加载触控驱动信号，检测所述第二触摸感应电极通过与所述第二触摸驱动电极之间的互电容耦合出的第二触控感应信号，根据该第二触控感应信号的变化，确定触摸位置信息；
当所述触摸显示面板处于双面触控模式时，
同时对所述第一触摸驱动电极和所述第二触摸驱动电极加载触控驱动信号；
检测所述第一触摸感应电极通过与所述第一触摸驱动电极之间的互电容耦合出的第一触控感应信号，以及检测所述第二触摸感应电极通过与所述第二触摸驱动电极之间的互电容耦合出的第二触控感应信号，
根据所述第一触控感应信号和所述第二触控感应信号的变化，确定触摸位置信息。
本公开具有以下有益效果：通过分别位于阵列基板和对盒基板上的两触摸感应电极以及位于两触摸感应电极之间的触摸驱动电极，可以达到双面触控的目的。
附图说明
图1为本公开一实施例的触摸显示面板的触摸驱动电极和触摸感应电极的设置方式示意图；
图2为本公开另一实施例的触摸显示面板的触摸驱动电极和触摸感应电极的设置方式示意图；
图3为本公开实施例的显示面板的触摸感应电极的结构示意图；
图4为本公开一实施例的触摸显示面板的结构示意图。
具体实施方式
为使本公开要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。
本公开实施例提供一种触摸显示面板，包括：相对设置的阵列基板和对盒基板，触摸驱动电极，第一触摸感应电极和第二触摸感应电极，其中，所述第一触摸感应电极位于所述对盒基板上，所述第二触摸感应电极位于所述阵列基板上，所述触摸驱动电极位于所述第一触摸感应电极和所述第二触摸感应电极之间，所述触摸驱动电极分别与第一触摸感应电极和第二触摸感应电极异面相交，且所述触摸驱动电极与第一触摸感应电极和第二触摸感应电极分别形成互电容。
所述触摸驱动电极用于在触控阶段接收触控驱动信号。
所述第一触摸感应电极和所述第二触摸感应电极，用于在触控阶段通过与触摸驱动电极之间的互电容对触摸驱动信号进行耦合，得出触控感应信号并输出。
所述互电容形成在所述触摸驱动电极与触摸感应电极的异面相交处。
包括本公开实施例的触摸显示面板的触摸显示装置的工作原理如下：
在触摸前，所述触摸驱动电极Tx和触摸感应电极Rx(第一触摸感应电极或第二触摸感应电极)之间处于静态平衡，存在互电容为Co，当手指触摸相应感应单元，手指分别与触摸驱动电极Tx和触摸感应电极Rx产生耦合电容，使得感应单元的电容变化为(Co+ΔC)，通过对触摸驱动电极Tx的逐行扫描，触摸感应电极Rx输出的信号会快速做出反应，即可得到相应的触摸点位置(即触摸点的行坐标和列坐标)。
本公开实施例中，通过分别位于阵列基板和对盒基板上的两触摸感应电极以及位于两触摸感应电极之间的触摸驱动电极，可以达到双面触控的目的。
优选地，所述阵列基板和所述对盒基板均包括一衬底基板，所述触摸驱动电极位于所述阵列基板的衬底基板朝向所述对盒基板的一侧，所述第一触摸感应电极位于所述对盒基板的衬底基板朝向所述阵列基板的一侧或者或背向所述阵列基板的一侧，所述第二触摸感应电极位于所述阵列基板的衬底基板朝向所述对盒基板的一侧或者背向所述对盒基板的一侧。
本公开的一些实施例中，触摸显示面板可以仅包括一层触摸驱动电极，该触摸驱动电极可以分别与位于其两侧的第一触摸感应电极和第二触摸感应电极形成互电容，以实现双面触控。
该触摸驱动电极可以单独位于一层，采用单独的构图工艺形成。当然，为节省工艺，也可以与阵列基板的其中一层采用同一膜层形成，并采用同一次构图工艺形成。
优选地，所述阵列基板还包括：公共电极，所述触摸驱动电极包括：第一触摸驱动电极，所述第一触摸驱动电极与所述公共电极同层同材料设置。触摸驱动电极与公共电极同层同材料设置，即触摸驱动电极与公共电极采用同一膜层，并采用同一次构图工艺形成，从而可以节省成本。
优选地，所述第一触摸驱动电极包括多个第一子驱动电极，所述公共电极包括多个子公共电极，所述第一子驱动电极和所述子公共电极绝缘交叉设置，在一帧画面的显示时间内，所述第一子驱动电极分时地加载公共电极信号和触控驱动信号。
本公开实施例中，触控和显示阶段采用分时驱动的方式，一方面可以将显示驱动和触控驱动的芯片整合为一体，降低生产成本；另一方面分时驱动也能够降低显示和触控的相互干扰，提高画面品质和触控准确性。
具体地，可以将显示每一帧的时间分成显示时间段和触控时间段，在显示时间段，触摸驱动电极Tx作为公共电极，与触摸驱动电极连接的IC芯片向其提供恒定的公共电极信号，实现显示功能。在触控时间段，与触摸驱动电极连接的IC芯片向各触摸驱动电极分别提供触控驱动信号，同时各触摸感应电极分别进行侦测触控感应信号，实现触控功能。同时，各公共电极在显示时间段和触控时间段始终加载公共电极信号，或者，在显示时间段向各公共电极加载公共电极信号，在触控时间段各公共电极接地或者悬空处理，该悬空处理指无信号输入。
请参考图1，图1为本公开一实施例的触摸显示面板的触摸驱动电极和触摸感应电极的设置方式示意图，该触摸显示面板包括：阵列基板100和对盒基板200，阵列基板100包括衬底基板101，位于衬底基板101朝向所述对盒基板200的一侧的第一触摸驱动电极102，以及位于衬底基板101背向所述对盒基板200的一侧的第二触摸感应电极103，对盒基板200包括衬底基板201和位于衬底基板201背向所述阵列基板100的一侧的第一触摸感应电极202。所述第一触摸驱动电极102与阵列基板100的公共电极同层同材料设置。
本公开的另外一些实施例中，触摸显示面板还可以包括两层触摸驱动电极，该两层触摸驱动电极分别与上述两触摸感应电极之一形成互电容，以实现双面触控。
优选地，本公开实施例中的触摸驱动电极除了包括第一触摸驱动电极之外，还可以包括：第二触摸驱动电极，所述第二触摸驱动电极与所述第一触摸驱动电极位于不同层，其中，所述第一触摸驱动电极与所述第一触摸感应 电极形成互电容，所述第二触摸驱动电极与所述第二触摸感应电极形成互电容。
当所述阵列基板上的薄膜晶体管为顶栅型薄膜晶体管时，为了防止光线对薄膜晶体管沟道的照射，通常情况下，所述阵列基板还可以包括：位于所述阵列基板的衬底基板与所述薄膜晶体管之间并遮挡所述薄膜晶体管沟道的遮光条。所述遮光条可以采用金属材料制成。本公开实施例中，可以采用所述遮光条作为所述第二触摸驱动电极，以节省成本。
需要说明的是，本公开实施例中的顶栅型薄膜晶体管可以为低温多晶硅薄膜晶体管。
当然，在本公开的其他一些实施例中，也可以单独制备一层第二触摸驱动电极。
请参考图2，图2为本公开另一实施例的触摸显示面板的触摸驱动电极和触摸感应电极的设置方式示意图，该触摸显示面板包括：阵列基板100和对盒基板200，阵列基板100包括衬底基板101，位于衬底基板101朝向所述对盒基板200的一侧的第一触摸驱动电极102和第二触摸驱动电极104，以及位于衬底基板101背向所述对盒基板200的一侧的第二触摸感应电极103，对盒基板200包括衬底基板201和位于衬底基板201背向所述阵列基板100的一侧的第一触摸感应电极202。所述第一触摸驱动电极102与阵列基板100的公共电极同层同材料设置。所述第二触摸驱动电极104为位于所述阵列基板的衬底基板与所述薄膜晶体管之间并遮挡所述薄膜晶体管沟道的遮光条。
其中，第一触摸驱动电极102与第一触摸感应电极202形成互电容，第二触摸驱动电极104与第二触摸感应电极103形成互电容，以实现双面触控。
当仅采用第一触摸驱动电极时，第一触摸驱动电极的信号部分会被位于第一触摸驱动电极与第二触摸感应电极103之间的栅线或数据线等屏蔽，影响触控效果，本公开实施例中，增加了第二触摸驱动电极104，通过第二触摸驱动电极104为第二触摸感应电极103提供触控驱动信号，从而优化了触控效果。
此外，采用现有的遮光条作为第二触摸驱动电极104，还可节省成本。
优选地，上述实施例中，第一触摸驱动电极和第二触摸驱动电极连接，以减小触摸驱动电极的电阻。
优选地，所述第一触摸驱动电极包括：多个平行排列第一子驱动电极，所述第二触摸驱动电极包括多个平行排列的第二子驱动电极，所述第一子驱动电极与对应的第二子驱动电极电连接。
所述第一子驱动电极和对应的第二子驱动电极可以通过过孔方式连接，也可以通过位于外围区域的电连接线连接。
以图2中的触摸显示面板为例，一第一触摸驱动电极102与对应的多个遮光条(第二触摸驱动电极104)电连接。即，一个触摸驱动电极包括：一第一触摸驱动电极102与对应的多个第二触摸驱动电极104。
优选地，所述第一触摸感应电极包括：多个平行排列的第一子感应电极，所述第二触摸感应电极包括多个平行排列的第二子感应电极，所述第一子感应电极与所述第二子感应电极的个数和排列方式均相同，且一一对应，每一所述第一子感应电极与对应的一所述第二子感应电极连接，该种结构能够保证双面具有相同的触控位置，还能够减小触摸感应电极的电阻。
其中，第一子感应电极和第一子驱动电极异面相交，并于异面相交处形成互电容，第二子感应电极和第二子驱动电极异面相交，并于异面相交处形成互电容。
优选地，每一所述第一子感应电极与对应位置处的一所述第二子感应电极借由位于所述对盒基板一侧的柔性电路板(FPC)、位于所述阵列基板一侧的柔性电路板及用于连接两柔性电路板的连接线连接，所述连接线包括多条子连接线，每一子连接线对应一第一子感应电极和一第二子感应电极。
请参考图3，图3为本公开实施例的显示面板的触摸感应电极的结构示意图，该显示面板包括阵列基板100和对盒基板200，阵列基板100包括衬底基板101和第二触摸感应电极103，对盒基板200包括衬底基板201和第一触摸感应电极202。
所述第一触摸感应电极202包括：多个平行排列的第一子感应电极31，所述第二触摸感应电极103包括多个平行排列的第二子感应电极32， 所述第一子感应电极31与所述第二子感应电极32的个数和排列方式均相同，且一一对应，每一所述第一子感应电极31与对应的一所述第二子感应电极32借由位于所述对盒基板200一侧的柔性电路板33、位于所述阵列基板100一侧的柔性电路板34及用于连接两柔性电路板的连接线35连接，所述连接线35包括多条子连接线351，每一子连接线351对应一第一子感应电极31和一第二子感应电极32。
上述实施例中的触摸显示面板可以为液晶显示面板，当触摸显示面板为液晶显示面板时，所述对盒基板为彩膜基板。当然，本公开实施例的触摸显示面板也可以为其他类型的显示面板，例如有机发光二极管显示面板。
下面以触摸显示面板为液晶显示面板为例，举例对本公开实施例的触摸显示面板的结构进行说明。
请参考图4，图4为本公开一实施例的触摸显示面板的结构示意图，该触摸显示面板包括：阵列基板100，彩膜基板200，以及位于阵列基板100和彩膜基板200之间的液晶层400。
阵列基板100包括：衬底基板101，位于衬底基板101朝向彩膜基板200的一侧的第二触摸驱动电极(遮光条)104、第一绝缘层105、有源层106、栅绝缘层107、栅电极108、第二绝缘层109、源漏电极110、第三绝缘层111、第一触摸驱动电极102、钝化层112、像素电极113和第一取向层114，以及位于衬底基板101背向彩膜基板200的一侧的第二触摸感应电极103和第一偏光片115。
彩膜基板200包括：衬底基板201，位于衬底基板201朝向阵列基板100的一侧的黑矩阵203、色阻204和第二取向层205，以及位于衬底基板201背向阵列基板100的一侧的第一触摸感应电极202和第二偏光片206。
其中，第一触摸感应电极202和第一触摸驱动电极102形成互电容，第二触摸感应电极103与第二触摸驱动电极104形成互电容，以形成双面触控。
本公开实施例还提供一种触摸显示装置，包括上述触摸显示面板。
使用本公开实施例的触摸显示装置时，用户可以用手在背面触控，这样不会影响正面的视野，能够起到灵活使用的效果。
此外，本公开实施例的触摸显示装置还可以双面显示的触摸显示装置，即双面都可以实现显示和触控的功能。
本公开实施例还提供一种触摸显示面板的驱动方法，应用于上述任一实施例中的触摸显示面板，包括：
步骤S1：对所述触摸驱动电极加载触控驱动信号；
步骤S2：检测所述第一触摸感应电极和/或所述第二触摸感应电极通过与所述触摸驱动电极之间的互电容耦合出触控感应信号，根据该触控感应信号的变化，确定触摸位置信息。
优选地，所述触摸驱动电极包括：第一触摸驱动电极和第二触摸驱动电极，所述第一触摸驱动电极和所述第一触摸感应电极形成互电容，所述第二触摸驱动电极和所述第二触摸感应电极形成互电容；即，第一触摸驱动电极和第一触摸感应电极组成一触控结构，第二触摸驱动电极和第二触摸感应电极组成一触控结构。
所述对所述触摸驱动电极加载触控驱动信号的步骤为：
对所述第一触摸驱动电极或所述第二触摸驱动电极加载触控驱动信号；或者
对所述第一触摸驱动电极和所述第二触摸驱动电极加载相同或不同的触控驱动信号。
具体说明如下：
由于第一触摸驱动电极和第一触摸感应电极组成一触控结构，第二触摸驱动电极和第二触摸感应电极组成一触控结构，本公开实施例中，在同一时刻，可以仅单独使用一触控结构，而关闭另一触控结构，实现单面触控，或者，在同一时刻，同时使用两触控结构，实现双面触控。
在同一时刻，仅使用一触控结构时，例如仅使用第一触摸驱动电极和第一触摸感应电极组成的触控结构时，可以仅向第一触摸驱动电极加载触摸驱动信号，而不向第二触摸驱动电极加载触摸驱动信号。
在同一时刻，同时使用两触控结构时，需要同时向第一触摸驱动电极和第二触摸驱动电极加载触摸驱动信号，向第一触摸驱动电极和第二触摸驱动电极加载的触摸驱动信号可以相同，也可以不同。
在本公开的其他一些实施例中，为了减低触摸驱动电极的电阻，还可以将第一触摸驱动电极和第二触摸驱动电极连接起来，此时，向第一触摸驱动电极和第二触摸驱动电极加载的触控驱动信号相同。
本公开实施例的触摸显示面板的驱动方法还包括：在触控阶段为所述第一触摸感应电极和所述第二触摸感应电极提供触控感应信号，在显示阶段为所述第一触摸感应电极和所述第二触摸感应电极提供零电压，以消除所述第一触摸感应电极和所述第二触摸感应电极上的静电。
以上所述是本公开的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本公开的保护范围。

Claims (18)

  1. 一种触摸显示面板，包括：相对设置的阵列基板和对盒基板，触摸驱动电极、第一触摸感应电极和第二触摸感应电极，其中，所述第一触摸感应电极位于所述对盒基板上，所述第二触摸感应电极位于所述阵列基板上，所述触摸驱动电极位于所述第一触摸感应电极和所述第二触摸感应电极之间，且所述触摸驱动电极与第一触摸感应电极和第二触摸感应电极分别形成互电容。
  2. 根据权利要求1所述的触摸显示面板，其中，所述阵列基板和所述对盒基板均包括一衬底基板，所述触摸驱动电极位于所述阵列基板的衬底基板朝向所述对盒基板的一侧，所述第一触摸感应电极位于所述对盒基板的衬底基板朝向所述阵列基板的一侧或者背向所述阵列基板的一侧，所述第二触摸感应电极位于所述阵列基板的衬底基板朝向所述对盒基板的一侧或者背向所述对盒基板的一侧。
  3. 根据权利要求2所述的触摸显示面板，其中，所述阵列基板还包括：公共电极，所述触摸驱动电极包括：第一触摸驱动电极，所述第一触摸驱动电极和所述公共电极同层同材料设置。
  4. 根据权利要求3所述的触摸显示面板，其中，所述触摸驱动电极还包括：第二触摸驱动电极，所述第二触摸驱动电极和所述第一触摸驱动电极位于不同层，其中，所述第一触摸驱动电极与所述第一触摸感应电极形成互电容，所述第二触摸驱动电极与所述第二触摸感应电极形成互电容。
  5. 根据权利要求4所述的触摸显示面板，其中，所述阵列基板还包括：薄膜晶体管，所述第二触摸驱动电极为位于所述阵列基板的衬底基板与所述薄膜晶体管之间并遮挡所述薄膜晶体管沟道的遮光条。
  6. 根据权利要求4或5所述的触摸显示面板，其中，所述第一触摸驱动电极和所述第二触摸驱动电极电连接。
  7. 根据权利要求6所述的触摸显示面板，其中，所述第一触摸驱动电极包括：多个平行排列第一子驱动电极，所述第二触摸驱动电极包括多个平行排列的第二子驱动电极，所述第一子驱动电极与对应的第二子驱动电极电 连接。
  8. 根据权利要求7所述的触摸显示面板，其中，所述第一触摸感应电极包括：多个平行排列的第一子感应电极，所述第二触摸感应电极包括多个平行排列的第二子感应电极，所述第一子感应电极与所述第二子感应电极的个数和排列方式均相同，且一一对应，每一所述第一子感应电极与对应位置处的一所述第二子感应电极连接；
    所述第一子感应电极和所述第一子驱动电极异面相交，并于异面相交处形成互电容；所述第二子感应电极和所述第二子驱动电极异面相交，并于异面相交处形成互电容。
  9. 根据权利要求2所述的触摸显示面板，其中，所述第一触摸感应电极包括：多个平行排列的第一子感应电极，所述第二触摸感应电极包括多个平行排列的第二子感应电极，所述第一子感应电极与所述第二子感应电极的个数和排列方式均相同，且一一对应，每一所述第一子感应电极与对应位置处的一所述第二子感应电极连接。
  10. 根据权利要求9所述的触摸显示面板，其中，每一所述第一子感应电极与对应位置处的一所述第二子感应电极借由位于所述对盒基板一侧的柔性电路板、位于所述阵列基板一侧的柔性电路板及用于连接两柔性电路板的连接线连接，所述连接线包括多条子连接线，每一子连接线对应一第一子感应电极和一第二子感应电极。
  11. 一种触摸显示装置，包括如权利要求1-10任一项触摸显示面板。
  12. 一种触摸显示面板的驱动方法，应用于如权利要求1-10任一项所述的触摸显示面板，包括：
    对所述触摸驱动电极加载触控驱动信号；
    检测所述第一触摸感应电极和/或所述第二触摸感应电极通过与所述触摸驱动电极之间的互电容耦合出的触控感应信号，根据该触控感应信号的变化，确定触摸位置信息。
  13. 根据权利要求12所述的触摸显示面板的驱动方法，其中，所述触摸驱动电极包括：第一触摸驱动电极和第二触摸驱动电极，所述第一触摸驱动电极和所述第一触摸感应电极形成互电容，所述第二触摸驱动电极和所述 第二触摸感应电极形成互电容；
    所述对所述触摸驱动电极加载触控驱动信号的步骤为：
    对所述第一触摸驱动电极或所述第二触摸驱动电极加载触控驱动信号；或者
    对所述第一触摸驱动电极和所述第二触摸驱动电极加载相同或不同的触控驱动信号。
  14. 根据权利要求12所述的触摸显示面板的驱动方法，其中，还包括：
    在触控阶段为所述第一触摸感应电极和所述第二触摸感应电极提供触控感应信号，在显示阶段为所述第一触摸感应电极和所述第二触摸感应电极提供零电压，以消除所述第一触摸感应电极和所述第二触摸感应电极上的静电。
  15. 一种触摸显示面板，包括：相对设置的阵列基板和对盒基板，第一触摸驱动电极、第二触摸驱动电极、第一触摸感应电极和第二触摸感应电极；
    其中，所述第一触摸感应电极位于所述对盒基板上，所述第二触摸感应电极位于所述阵列基板上；
    所述第一触摸驱动电极和所述第二触摸驱动电极不同层地设置在所述第一触摸感应电极和所述第二触摸感应电极之间，且所述第一触摸驱动电极和所述第一触摸感应电极组成第一触控结构，所述第二触摸驱动电极和所述第二触摸感应电极组成第二触控结构；
    所述第一触控结构和所述第二触控结构位于所述触摸显示面板的两面。
  16. 根据权利要求15所述的触摸显示面板，其中，所述第一触摸驱动电极包括：多个平行排列第一子驱动电极，所述第二触摸驱动电极包括多个平行排列的第二子驱动电极；
    所述第一触摸感应电极包括：多个平行排列的第一子感应电极，所述第二触摸感应电极包括多个平行排列的第二子感应电极，所述第一子感应电极与所述第二子感应电极的个数和排列方式均相同，且一一对应，每一所述第一子感应电极与对应位置处的一所述第二子感应电极连接；
    所述第一子感应电极和所述第一子驱动电极异面相交，并于异面相交处形成互电容；所述第二子感应电极和所述第二子驱动电极异面相交，并于异面相交处形成互电容。
  17. 根据权利要求16所述的触摸显示面板，其中，所述第一子驱动电极与对应的第二子驱动电极电连接。
  18. 一种触摸显示面板的驱动方法，应用于如权利要求15-17任一项所述的触摸显示面板，包括：
    判断所述触摸显示面板处于单面触控模式还是双面触控模式；
    当所述触摸显示面板处于单面触控模式时，进一步判断所述第一触控结构还是所述第二触控结构被选择进行触控操作；
    当所述第一触控结构被选择进行触控操作时，关闭所述第二触控结构，对所述第一触摸驱动电极加载触控驱动信号，检测所述第一触摸感应电极通过与所述第一触摸驱动电极之间的互电容耦合出的第一触控感应信号，根据该第一触控感应信号的变化，确定触摸位置信息；
    当所述第二触控结构被选择进行触控操作时，关闭所述第一触控结构，对所述第二触摸驱动电极加载触控驱动信号，检测所述第二触摸感应电极通过与所述第二触摸驱动电极之间的互电容耦合出的第二触控感应信号，根据该第二触控感应信号的变化，确定触摸位置信息；
    当所述触摸显示面板处于双面触控模式时，
    同时对所述第一触摸驱动电极和所述第二触摸驱动电极加载触控驱动信号；
    检测所述第一触摸感应电极通过与所述第一触摸驱动电极之间的互电容耦合出的第一触控感应信号，以及检测所述第二触摸感应电极通过与所述第二触摸驱动电极之间的互电容耦合出的第二触控感应信号，
    根据所述第一触控感应信号和所述第二触控感应信号的变化，确定触摸位置信息。
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