WO2016041301A1 - 触摸屏、其触控定位方法及显示装置 - Google Patents

触摸屏、其触控定位方法及显示装置 Download PDF

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Publication number
WO2016041301A1
WO2016041301A1 PCT/CN2015/070046 CN2015070046W WO2016041301A1 WO 2016041301 A1 WO2016041301 A1 WO 2016041301A1 CN 2015070046 W CN2015070046 W CN 2015070046W WO 2016041301 A1 WO2016041301 A1 WO 2016041301A1
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WIPO (PCT)
Prior art keywords
capacitance
self
touch
electrodes
touch screen
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PCT/CN2015/070046
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English (en)
French (fr)
Inventor
王海生
董学
薛海林
杨盛际
丁小梁
刘英明
赵卫杰
刘红娟
李昌峰
刘伟
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
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.)
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Publication date
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 JP2017534864A priority Critical patent/JP6466584B2/ja
Priority to US14/770,983 priority patent/US9703415B2/en
Priority to EP15750913.4A priority patent/EP3196741B1/en
Priority to KR1020157024526A priority patent/KR101762523B1/ko
Publication of WO2016041301A1 publication Critical patent/WO2016041301A1/zh

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    • 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
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    • G—PHYSICS
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    • 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
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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
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    • 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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134336—Matrix
    • 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
    • G02F1/1343—Electrodes
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • 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
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/121—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode common or background
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    • G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
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    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
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    • H10K59/40—OLEDs integrated with touch screens

Definitions

  • Embodiments of the present invention relate to a touch screen, a touch positioning method thereof, and a display device.
  • the Touch Screen Panel has gradually spread throughout people's lives.
  • the touch screen can be divided into an Add-on Mode Touch Panel, an On-Cell Touch Panel, and an In-Cell Touch Panel.
  • the plug-in touch screen is produced by separately separating the touch screen from the display (Liquid Crystal Display (LCD)) and then bonding them together to form a touch-enabled display screen.
  • the external touch screen has the disadvantages of high production cost, low light transmittance, and thick module.
  • the in-cell touch screen embeds the touch electrodes of the touch screen inside the display screen, which not only can reduce the thickness of the whole module, but also greatly reduce the manufacturing cost of the touch screen, and is favored by the major panel manufacturers.
  • an in-cell touch panel utilizes the principle of mutual capacitance or self-capacitance to detect the touch position of a finger.
  • a plurality of self-capacitance electrodes disposed in the same layer and insulated from each other can be disposed in the touch screen.
  • the capacitance of the respective capacitor electrodes is a fixed value.
  • the capacitance of the corresponding self-capacitance electrode is a fixed value superimposed on the human body capacitance.
  • the touch chip can determine the touch position by detecting a change in the capacitance value of each capacitor electrode during the touch period.
  • the capacitance of the human body can only act on the projection capacitance in the mutual capacitance.
  • the touch change caused by the human body touching the screen is greater than the touch screen produced by the mutual capacitance principle.
  • the capacitive touch screen can effectively improve the signal-to-noise ratio of the touch relative to the mutual-capacitance touch screen, thereby improving the accuracy of the touch sensing.
  • the embodiment of the invention provides an in-cell touch panel and a display device, which can reduce the lead-out line of the touch screen without reducing the self-capacitance electrode.
  • At least one embodiment of the present invention provides a touch screen including a substrate, a plurality of self-capacitance electrodes arranged in a matrix on the substrate, and for detecting each of the touch time periods The capacitance value of the self-capacitance electrode changes to determine a touch chip of the touch position.
  • the plurality of self-capacitance electrodes are divided into a plurality of independent self-capacitance electrode groups and a plurality of independent self-capacitance electrodes; each of the independent self-capacitance electrodes is one of the self-capacitance electrodes, and each of the independent self-capacitance electrodes respectively passes Different wires are electrically connected to the touch chip; each of the self-capacitance electrode groups includes at least two self-capacitance electrodes that are not adjacent to each other, and each of the self-capacitance electrodes belonging to the same self-capacitance electrode group passes through the same wire. Electrically connected to the touch chip, and at least four self-capacitance electrodes at four adjacent positions of the upper, lower, left and right sides of each of the self-capacitance electrodes are independent self-capacitors electrode.
  • each of the self-capacitance electrode groups may include self-capacitance electrodes that are not adjacent at least two positions in the column direction or the row direction.
  • one of the independent self-capacitance electrodes may be spaced between each of the self-capacitance electrodes belonging to the same self-capacitance electrode group.
  • each of the self-capacitance electrode sets may include two of the self-capacitance electrodes.
  • At least four self-capacitance electrodes at four adjacent positions of the upper, lower, left, and right sides of each of the independent self-capacitance electrodes may be self-capacitance electrodes in the self-capacitance electrode group.
  • the self-capacitance electrodes at adjacent positions of the self-capacitance electrodes in each of the self-capacitance electrode groups may be independent self-capacitance electrodes.
  • each of the self-capacitance electrodes may be divided by a common electrode layer disposed on the base substrate; the touch chip is further configured to load a common electrode of the respective capacitor electrodes during a display period. signal.
  • opposite sides of two adjacent self-capacitance electrodes may be fold lines.
  • the two adjacent self-capacitance electrodes may have a stepped structure on the side opposite to the fold line, and the two stepped structures have the same shape and match each other.
  • the two adjacent self-capacitance electrodes may have a concave-convex structure on the side opposite to the fold line, and the two concave-convex structures have the same shape and match each other.
  • the touch screen is an external touch screen, a covered surface touch screen or an in-cell touch screen.
  • the embodiment of the present invention further provides a touch positioning method for any one of the above touch screens, comprising: inputting a touch detection signal to a self-capacitance electrode in the touch screen; receiving a feedback signal of each self-capacitance electrode, and receiving feedback according to the feedback
  • the signal compares the capacitance value of the self-capacitance electrode at each position with a first preset capacitance value, and the self-capacitance electrode whose capacitance value is greater than the first predetermined capacitance value
  • the position is determined as a first position; for each of the first positions, determining whether a capacitance value of the self-capacitance electrode at four adjacent positions of the upper, lower, left, and right positions of the first position is smaller than a second capacitance a preset value; if at least two of the self-capacitance electrodes at the four adjacent positions of the upper, lower, left, and right positions of the first position have a capacitance value smaller than a preset value of the second capacit
  • the self-capacitance electrode at the adjacent position of each of the self-capacitance electrodes in each of the self-capacitance electrode groups is a touch screen of an independent self-capacitance electrode, and the touch panel of the touch panel is further provided by the embodiment of the invention.
  • the positioning method includes: inputting a touch detection signal to the self-capacitance electrode in the touch screen; receiving a feedback signal of each of the self-capacitance electrodes; and, according to the feedback signal, a capacitance value of the self-capacitance electrode at each position
  • the first preset capacitance value is compared, and the position of the self-capacitance electrode whose capacitance value is greater than the first preset capacitance value is determined as the first position; for each of the first positions, determining to be located in the first position Whether the capacitance value of the self-capacitance electrode at the adjacent position is smaller than the second capacitance preset value; if at least half of the self-capacitance electrode at the adjacent position of the first position has a capacitance value smaller than the capacitance value And determining, by the second capacitor preset value, the first position as a ghost point position; determining the first position where the ghost point position is removed as the touch position.
  • the embodiment of the present invention further provides a display device, including any of the above touch screens provided by the embodiments of the present invention.
  • 1 is a top plan view of a self-capacitive touch screen
  • FIG. 2 is a schematic top view of a touch screen according to an embodiment of the present invention.
  • 3a to 3f are schematic top views of a touch screen according to an embodiment of the present invention.
  • 4a and 4b are schematic diagrams showing driving timings of a touch screen according to an embodiment of the present invention.
  • FIG. 5a and FIG. 5b are respectively schematic structural diagrams showing opposite sides of adjacent self-capacitance electrodes in a touch screen according to an embodiment of the present invention
  • FIG. 6 is a schematic flowchart of a touch positioning method of a touch screen according to an embodiment of the present disclosure
  • FIG. 7a is a schematic diagram of touch control of a touch screen according to an embodiment of the present invention.
  • FIG. 7b is a schematic diagram showing a distribution of capacitance values on respective capacitance electrodes in the touch screen shown in FIG. 7a;
  • FIG. 8 is a second schematic diagram of touch control of a touch screen according to an embodiment of the present disclosure.
  • FIG. 8b is a schematic diagram showing a distribution of capacitance values on respective capacitance electrodes in the touch screen shown in FIG. 8a;
  • FIG. 9 is a third schematic diagram of touch control of a touch screen according to an embodiment of the present invention.
  • FIG. 9b is a schematic diagram showing a distribution of capacitance values on respective capacitance electrodes in the touch screen shown in FIG. 9a;
  • 10a is a fourth schematic diagram of touch control of a touch screen according to an embodiment of the present invention.
  • Figure 10b is a schematic diagram showing the distribution of capacitance values on respective capacitive electrodes in the touch screen shown in Figure 10a;
  • FIG. 11 is a fifth schematic diagram of a touch screen of a touch screen according to an embodiment of the present invention.
  • Figure 11b is a schematic diagram showing the distribution of capacitance values on respective capacitive electrodes in the touch screen shown in Figure 11a;
  • FIG. 12 is a sixth schematic diagram of a touch screen of a touch screen according to an embodiment of the present invention.
  • Figure 12b is a schematic diagram showing the distribution of capacitance values on respective capacitive electrodes in the touch screen shown in Figure 12a;
  • FIG. 13 is a schematic flowchart diagram of a touch positioning method of a touch screen according to an embodiment of the present invention.
  • each film layer in the drawings do not reflect the true scale, and are merely intended to illustrate the contents of the embodiments of the present invention.
  • each self-capacitance electrode needs to be connected to a terminal (Pad) on the touch chip through a separate lead wire.
  • each of the lead wires may include: a wire 13 connecting the self-capacitance electrode 11 to the frame of the touch screen, and a terminal 3 disposed at the frame for conducting the self-capacitance electrode 11 to the touch chip;
  • the surrounding route is 4.
  • the corresponding lead-out lines are also very large.
  • each self-capacitance electrode As an example, a 5-inch LCD screen requires 264 self-capacitance electrodes; if each self-capacitance electrode is designed to be smaller, there will be more For self-capacitance electrodes, more lead wires need to be provided, and more terminals are needed on the touch chip. So how Reducing the lead wires on the lead wires and the touch terminals on the touch chip without reducing the self-capacitance electrodes is an urgent problem to be solved in the field of self-capacitance touch screens.
  • a touch screen includes a base substrate 10, a plurality of self-capacitance electrodes 11 arranged in a matrix on the base substrate 10, and used to detect each of them in a touch time phase.
  • the capacitance value of the capacitor electrode 11 changes to determine the touch chip 12 of the touch position.
  • the plurality of self-capacitance electrodes are divided into a plurality of independent self-capacitance electrode groups 111 and a plurality of independent self-capacitance electrodes 112; each of the independent self-capacitance electrodes 112 is a self-capacitance electrode 11 respectively, and each of the independent self-capacitance electrodes 112 respectively passes through different wires. 13 is electrically connected to the touch chip 12; each of the capacitor electrode groups 111 includes at least two self-capacitance electrodes 11 that are not adjacent to each other, and the respective capacitor electrodes 11 belonging to the same self-capacitance electrode group 111 pass through the same wire 13 and the touch chip.
  • the self-capacitance electrodes 11 are electrically connected, and at least four adjacent positions of the upper, lower, left and right of the respective capacitor electrodes 11 in the respective capacitor electrode groups 111 are independent self-capacitance electrodes 112.
  • the plurality of self-capacitance electrodes are divided into a plurality of independent self-capacitance electrode groups and a plurality of independent self-capacitance electrodes; each of the capacitor electrode groups includes at least two self-capacitance electrodes that are not adjacent to each other.
  • the respective capacitor electrodes belonging to the same self-capacitance electrode group are electrically connected to the touch chip through the same wire, and at least four self-capacitances at four adjacent positions of the upper, lower, left and right of the respective capacitor electrodes in the respective capacitor electrode groups.
  • the electrodes are independent self-capacitance electrodes. Therefore, compared with the usual self-capacitance electrode and the touch chip through a wire, the wire between the self-capacitance electrode and the touch chip can be electrically connected, thereby reducing the lead wire in the touch screen and the touch chip. Terminals.
  • the position is not adjacent, that is, the positions are not adjacent in any direction, and the interval position is in the middle.
  • Such non-adjacentness is included not only in the row direction or the column direction but also in the diagonal direction.
  • the self-capacitance electrodes in the self-capacitance electrode group may be self-capacitance electrodes that are not adjacent at any position, for example, non-adjacent in the row direction, in the column direction, or in the diagonal direction. Not limited.
  • the respective capacitive electrode groups 111 may include self-capacitance electrodes 11 that are not adjacent in at least two positions in the column direction; or, as shown in FIG. 3b, the respective capacitance electrode groups 111 may A self-capacitance electrode 11 that is not adjacent in at least two positions in the row direction is included.
  • the number of self-capacitance electrodes in the respective capacitive electrode groups may be equal.
  • an independent self-capacitance electrode 112 may be spaced between the respective capacitor electrodes 11 belonging to the same self-capacitance electrode group 111.
  • two or more independent self-capacitance electrodes 112 may be spaced apart from each other between the respective capacitor electrodes 11 in the same self-capacitance electrode group 111, which is not limited herein.
  • the number of independent self-capacitance electrodes spaced between the self-capacitance electrodes in the respective capacitive electrode groups may be equal.
  • the self-capacitance electrodes 11 at four adjacent positions of the upper, lower, left and right sides of the respective self-capacitance electrodes 112 are the self-capacitance electrodes 11 in the self-capacitance electrode group 111.
  • the respective capacitive electrode groups 111 may include two self-capacitance electrodes 11.
  • the self-capacitance electrodes 11 located at adjacent positions of the respective capacitor electrodes 11 in the respective capacitor electrode groups 111 are independent self-capacitance electrodes 112.
  • wires for electrically connecting the touch chip and the self-capacitance electrode may be disposed in the same layer as the self-capacitance electrode, or may be disposed in different layers (different layers), which is not limited herein.
  • touch screen provided by the embodiment of the present invention can be applied to a touch screen (touch panel) having only a touch function, and can also be applied to a touch display screen (touch display panel) having both a touch function and a display function. It is not limited here.
  • the touch screen provided by the embodiment of the present invention when applied to a touch display screen, it may be externally mounted or in-line, which is not limited herein.
  • the display screen may be a liquid crystal display or an organic electroluminescent display, etc., which is not limited herein.
  • the respective capacitor electrodes are divided by a common electrode layer disposed on the base substrate; It can be used to load a common electrode signal to the respective capacitor electrodes during the display period.
  • the common electrode layer of the touch screen multiplexed display panel provided by the embodiment of the present invention is used as a self-capacitance electrode, and the common electrode layer pattern of the TN mode is changed to form a plurality of independent self-capacitance electrodes and the self-capacitance electrodes are connected to The wire of the touch chip.
  • the touch function needs to add two new layers in the conventional array substrate.
  • the touch screen provided by the embodiment of the invention does not need to add an additional film layer, and only needs to set the original layer.
  • the common electrode layer is patterned to form a corresponding pattern of self-capacitance electrodes and wires, thereby saving production This improves production efficiency.
  • the touch screen multiplexing common electrode layer provided by the embodiment of the present invention is used as a self-capacitance electrode, in the implementation, a touch-and-display phase-time driving method is required, and the display driving chip and the touch chip can also be used. Integration into a single chip further reduces production costs.
  • the time at which the touch screen displays each frame is divided into a display period (Display) and a touch period (Touch).
  • the time of displaying one frame of the touch screen is 16.7 ms, and 4 ms is selected as the touch time period, and the other 12.7 ms is used as the display time period.
  • the duration of the two chips can be appropriately adjusted according to the processing capability of the IC chip, and is not specifically limited herein.
  • a gate scan signal is sequentially applied to each of the gate signal lines Gate1, Gate2, ..., Gate n in the touch screen, and a gray scale signal is applied to the data signal line Data, and the respective capacitor electrodes Cx1 ... Cx n
  • the connected touch chips respectively apply common electrode signals to the respective capacitance electrodes Cx1 . . . Cx n to realize a liquid crystal display function.
  • the touch chips connected to the respective capacitor electrodes Cx1 . . . Cx n simultaneously apply driving signals to the respective capacitor electrodes Cx1 . . . Cx n while receiving the respective capacitor electrodes Cx1... ...
  • the touch chips connected to the respective capacitance electrodes Cx1 ... Cx n sequentially apply driving signals to the respective capacitance electrodes Cx1 ... Cx n to respectively receive the respective capacitance electrodes Cx1...
  • the feedback signal of ... Cx n is not limited herein.
  • the touch function is implemented by analyzing the feedback signal to determine whether a touch occurs.
  • the human body capacitance acts on the self-capacitance of the respective capacitor electrodes by direct coupling. Therefore, when the human body touches the screen, the capacitance value of the self-capacitance electrode only under the touch position has a large change amount, and the capacitance value of the self-capacitance electrode adjacent to the self-capacitance electrode under the touch position is very small. Thus, when sliding on the touch screen, the touch coordinates in the area where the self-capacitance electrode is located cannot be determined.
  • the opposite sides of the adjacent two self-capacitance electrodes may be set as fold lines to increase the adjacent self-capacitance electrodes located below the touch position. The amount of capacitance change of the self-capacitance electrode.
  • the overall shape of the respective capacitor electrodes may be set in one or a combination of the following two ways.
  • the sides of the adjacent two self-capacitance electrodes 11 that are opposite to each other may be set as a ladder.
  • the two-step structure has the same shape and matches each other. As shown in Fig. 5a, 2*2 self-capacitance electrodes 11 are shown in Fig. 5a.
  • the sides of the adjacent two self-capacitance electrodes 11 which are opposite to each other may be arranged in a concave-convex structure, and the two concave-convex structures have the same shape and match each other, as shown in FIG. 5b, and FIG. 5b shows 2 * 2 self-capacitance electrodes 11.
  • the self-capacitance electrode group consisting of at least two self-capacitance electrodes
  • the self-capacitance electrode group consisting of at least two self-capacitance electrodes
  • the self-capacitance electrode in the same self-capacitance electrode group without a touch also has a capacitance.
  • the capacitance change amount is excluded from the same position as the capacitance change of the self-capacitance electrode where the touch occurs, so that the true touch can be determined. The position of the self-capacitance electrode.
  • the four adjacent self-capacitance electrodes of the self-capacitance electrode in the self-capacitance electrode group are independent self-capacitance electrodes.
  • the change of the capacitance value of the self-capacitance electrode at the adjacent position determines whether the self-capacitance electrode in the self-capacitance electrode group is actually touched, that is, whether the position of the self-capacitance electrode is a ghost point position.
  • the embodiment of the present invention further provides a touch positioning method for the touch screen, as shown in FIG. 6, which may include the following steps:
  • S102 Receive a feedback signal of each capacitor electrode, and compare a capacitance value of the self-capacitance electrode at each position with a first preset capacitance value according to the feedback signal;
  • S104 Determine, for each first location, whether a capacitance value of the self-capacitance electrode at four adjacent positions of the upper, lower, left, and right positions of the first position is less than a preset value of the second capacitance;
  • the first position is Determined as the location of the ghost point
  • the touch positioning method of the touch screen provided by the embodiment of the present invention first determines a position of a self-capacitance electrode whose capacitance value is greater than a first preset capacitance value as a first position; and then according to a self-capacitance electrode at the first position. a change in the capacitance value of the self-capacitance electrode at four adjacent positions of the lower, the left, and the right, determining the position of the ghost point from the first position; and then determining the first position of the position of removing the ghost point as the touch position, thereby Achieve accurate touch of the touch screen.
  • the first preset capacitance value is generally a minimum capacitance value determined to be touched, which can be obtained according to an empirical value, and will not be described in detail herein.
  • the second preset capacitance value is generally determined to be a minimum capacitance value due to the influence of the touch on the self-capacitance electrode at the nearest position. This can also be obtained based on empirical values and will not be described in detail here.
  • the touch positioning method provided by the embodiment of the present invention is described by using a specific example of the touch screen of the embodiment shown in FIG.
  • the capacitance on the self-capacitance electrodes at the two positions becomes 250 respectively, and when two fingers touch one position at the same time, the position at the position The capacitance on the capacitor electrode becomes 1000.
  • the finger touches a certain position it inevitably causes the capacitance of the self-capacitance electrode to change at a position around the position, and the capacitance of the self-capacitance electrode at a position closer to the position is closer.
  • the capacitance value of the self-capacitance electrode 11 at four adjacent positions of the upper, lower, left, and right positions of the position (3, 2) four adjacent positions of the position (3, 2) can be determined, up, down, left, and right.
  • the capacitance of the self-capacitance electrode 11 at three adjacent positions in the position is less than 25 (second preset capacitance value), so the position (3, 2) is a ghost point position;
  • the capacitance values of the self-capacitance electrodes 11 at the four adjacent positions of the upper, lower, left and right positions of the position (3, 4) can be determined, up, down, left, and right.
  • the capacitance on the self-capacitance electrode 11 at the position is greater than 25 (the second predetermined capacitance value), so the position (3, 4) is not the ghost point position;
  • the four adjacent positions of the position (2, 4) can be determined, up, down, left, and right.
  • the capacitance on the self-capacitance electrode 11 at only one position in the position is less than 25 (the second predetermined capacitance value), so the position (2, 4) is not the ghost point position;
  • the capacitance value of the self-capacitance electrode 11 at four adjacent positions of the upper, lower, left, and right positions of the position (3, 2) four adjacent positions of the position (3, 2) can be determined, up, down, left, and right.
  • the capacitance on the self-capacitance electrode 11 at three positions in the position is less than 25 (second preset capacitance value), so the position (3, 2) is the position of the ghost point;
  • the capacitance values of the self-capacitance electrodes 11 at the four adjacent positions of the upper, lower, left and right positions of the position (3, 4) can be determined, up, down, left, and right.
  • the capacitance on the self-capacitance electrode 11 at only one position in the position is less than 25 (the second predetermined capacitance value), so the position (3, 4) is not the ghost point position;
  • the first position only has the position (3, 2) as the ghost point position.
  • the capacitance value of the self-capacitance electrode 11 at four adjacent positions of the upper, lower, left, and right positions of the position (3, 2) four adjacent positions of the position (3, 2) can be determined, up, down, left, and right.
  • the capacitance on the self-capacitance electrode 11 at the position is greater than 25 (the second predetermined capacitance value), so the position (3, 2) is not the ghost point position;
  • the capacitance values of the self-capacitance electrodes 11 at the four adjacent positions of the upper, lower, left and right positions of the position (3, 4) can be determined, up, down, left, and right.
  • the capacitance on the self-capacitance electrode 11 at the position is greater than 25 (the second predetermined capacitance value), so the position (3, 4) is not the ghost point position;
  • the first positions (3, 2) and (3, 4) are the touch positions.
  • the capacitance value of the self-capacitance electrode 11 at four adjacent positions of the upper, lower, left and right positions of the position (2, 2) four adjacent positions of the position (2, 2) of the upper, lower, left and right positions can be determined.
  • the capacitance on the self-capacitance electrode 11 at only one position in the position is less than 25 (the second predetermined capacitance value), so the position (2, 2) is not the ghost point position;
  • the four adjacent positions of the position (2, 4) can be determined, up, down, left, and right.
  • the capacitance on the self-capacitance electrode 11 at only one position in the position is less than 25 (the second predetermined capacitance value), so the position (2, 4) is not the ghost point position;
  • the capacitance value of the self-capacitance electrode 11 at four adjacent positions of the upper, lower, left, and right positions of the position (3, 2) four adjacent positions of the position (3, 2) can be determined, up, down, left, and right.
  • the capacitance on the self-capacitance electrode 11 at only one position in the position is less than 25 (the second predetermined capacitance value), so the position (3, 2) is not the ghost point position;
  • the capacitance values of the self-capacitance electrodes 11 at the four adjacent positions of the upper, lower, left and right positions of the position (3, 4) can be determined, up, down, left, and right.
  • the capacitance on the self-capacitance electrode 11 at only one position in the position is less than 25 (the second predetermined capacitance value), so the position (3, 4) is not the ghost point position;
  • the first positions (2, 2), (2, 4), (3, 2), and (3, 4) are touch positions.
  • the capacitance value of the self-capacitance electrode 11 at each position in Fig. 11b and 220 is compared.
  • the capacitance value of the self-capacitance electrode 11 at the positions (2, 4), (3, 2), (3, 4), and (4, 4) is greater than 220, so the position (2, 4) , (3, 2), (3, 4), and (4, 4) are determined as the first position.
  • the four adjacent positions of the position (2, 4) can be determined, up, down, left, and right.
  • the capacitance on the self-capacitance electrode 11 at only one position in the position is less than 25 (the second predetermined capacitance value), so the position (2, 4) is not the ghost point position;
  • the capacitance value of the self-capacitance electrode 11 at four adjacent positions of the upper, lower, left, and right positions of the position (3, 2) four adjacent positions of the position (3, 2) can be determined, up, down, left, and right.
  • the capacitance on the self-capacitance electrode 11 at three positions in the position is less than 25 (second preset capacitance value), so the position (3, 2) is a ghost point position;
  • the capacitance values of the self-capacitance electrodes 11 at the four adjacent positions of the upper, lower, left and right positions of the position (3, 4) can be determined, up, down, left, and right.
  • the capacitance on the self-capacitance electrode 11 at the position is greater than 25 (the second predetermined capacitance value), so the position (3, 4) is not the ghost point position;
  • the capacitance value of the self-capacitance electrode 11 at four adjacent positions of the upper, lower, left and right positions of the position (4, 4) can be determined, up, down, left, and right.
  • the capacitance on the self-capacitance electrode 11 at only one of the positions is less than 25 (the second predetermined capacitance value), so the position (4, 4) is not the ghost point position;
  • the capacitance value of the self-capacitance electrode 11 at each position in FIG. 12b is 220 (the first preset power)
  • the capacitance value is compared, and the capacitance of the self-capacitance electrode 11 at the positions (3, 2), (3, 3), (3, 4), (4, 3), (4, 4), and (4, 5)
  • the value is greater than 220, so the positions (3, 2), (3, 3), (3, 4), (4, 3), (4, 4), and (4, 5) are determined as the first position.
  • the capacitance value of the self-capacitance electrode 11 at four adjacent positions of the upper, lower, left, and right positions of the position (3, 2) four adjacent positions of the position (3, 2) can be determined, up, down, left, and right.
  • the capacitance on the self-capacitance electrode 11 at three positions in the position is less than 25 (second preset capacitance value), so the position (3, 2) is a ghost point position;
  • the capacitance values of the self-capacitance electrodes 11 at the four adjacent positions of the upper, lower, left and right positions of the position (3, 3) can be determined, up, down, left, and right.
  • the capacitance on the self-capacitance electrode 11 at only one of the positions is less than 25 (the second predetermined capacitance value), so the position (3, 3) is not the ghost point position;
  • the capacitance values of the self-capacitance electrodes 11 at the four adjacent positions of the upper, lower, left and right positions of the position (3, 4) can be determined, up, down, left, and right.
  • the capacitance on the self-capacitance electrode 11 at the position is greater than 25 (the second predetermined capacitance value), so the position 3, 4) is not the ghost point position;
  • the capacitance values of the self-capacitance electrodes 11 at the four adjacent positions of the upper, lower, left and right positions of the position (4, 3) can be determined, up, down, left, and right.
  • the capacitance on the self-capacitance electrode 11 at two positions in the position is less than 25 (second preset capacitance value), so the position (4, 3) is a ghost point position;
  • the capacitance value of the self-capacitance electrode 11 at four adjacent positions of the upper, lower, left and right positions of the position (4, 4) can be determined, up, down, left, and right.
  • the capacitance on the self-capacitance electrode 11 at only one of the positions is less than 25 (the second predetermined capacitance value), so the position (4, 4) is not the ghost point position;
  • the capacitance value of the self-capacitance electrode 11 at four adjacent positions of the upper, lower, left and right positions of the position (4, 5) can be determined, up, down, left, and right.
  • the capacitance on the self-capacitance electrode 11 at two positions in the position is less than 25 (second preset capacitance value), so the position (4, 5) is a ghost point position;
  • the capacitance on the self-capacitance electrode at each position is based on a hypothetical estimated value, just to better illustrate the touch positioning method of the present invention, not to act as a The invention is defined.
  • the touch-up method provided by the embodiment of the present invention is described in the foregoing embodiments.
  • the touch-control method provided by the embodiment of the present invention can perform single-touch, Multi-touch can be performed.
  • the touch method of the touch screen having the self-capacitance electrode group including the self-capacitance electrode is the same as that of the above embodiment, and details are not described herein again.
  • the touch control method provided by the embodiment of the present invention is more suitable for a single touch screen for a touch screen including a self-capacitance electrode group including more than two self-capacitance electrodes.
  • the self-capacitance electrodes at the adjacent positions of the respective capacitor electrodes in the respective capacitor electrode groups are touch screens of independent self-capacitance electrodes, such as the touch screen shown in FIG. 3f, and the embodiment of the present invention further provides A touch positioning method of the above touch screen, as shown in FIG. 13 , may include the following steps:
  • S202 Receive a feedback signal of each capacitor electrode, and compare a capacitance value of the self-capacitance electrode at each position with a first preset capacitance value according to the feedback signal;
  • the principle is the same as the touch positioning method shown in FIG. 6 , but the number of self-capacitance electrodes in the adjacent position where the ghost point position is determined to be determined may be increased, as shown in FIG. 8 a .
  • the self-capacitance electrode in each self-capacitance electrode group has 8 adjacent positions, so 8 pieces need to be judged, and FIG. 6 only judges four adjacent positions of up, down, left, and right in 8 adjacent positions. , The other steps are the same and will not be described here.
  • the embodiment of the present invention further provides a display device, which includes any of the above touch screens provided by the embodiments of the present invention, and the display device may be: a mobile phone, a watch, a tablet computer, a television, a display, a notebook computer, Any product or component with display function such as digital photo frame and navigator.
  • the display device reference may be made to the embodiment of the touch screen described above, and the repeated description is omitted.
  • the touch screen provided by the embodiment of the invention, the touch positioning method and the display device thereof, the plurality of self-capacitance electrodes in the touch screen are divided into a plurality of independent self-capacitance electrode groups and a plurality of independent self-capacitance electrodes; each of the capacitor electrode groups includes at least two The self-capacitance electrodes are not adjacent to each other, and the respective capacitor electrodes belonging to the same self-capacitance electrode group are electrically connected to the touch chip through the same wire, and are, for example, at least on the respective capacitor electrodes in the respective capacitor electrode groups, up, down, and left.
  • the self-capacitance electrodes at the four adjacent positions on the right are independent self-capacitance electrodes. Therefore, compared with the usual self-capacitance electrode and the touch chip through a wire, the wire between the self-capacitance electrode and the touch chip can be electrically connected, thereby reducing the lead wire in the touch screen and the touch chip. Terminals.

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Abstract

一种触摸屏、其触控定位方法及显示装置，在触摸屏中多个自电容电极（11）划分为若干彼此独立的自电容电极组（111）和若干独立自电容电极（112）；各自电容电极组（111）均包括至少两个位置不相邻的自电容电极（11），且属于同一自电容电极组（111）的各自电容电极（11）通过同一导线（13）与触控芯片（12）电连接，并且至少位于各自电容电极组（111）中的各自电容电极（11）的上、下、左、右四个相邻位置处的自电容电极（11）均为独立自电容电极（112）。该触摸屏具有减少的电连接自电容电极与触控芯片之间的导线以及减少的触摸屏中的引出线和触控芯片上的接线端子。

Description

触摸屏、其触控定位方法及显示装置 技术领域
本发明的实施例涉及一种触摸屏、其触控定位方法及显示装置。
背景技术
随着显示技术的飞速发展，触摸屏(Touch Screen Panel)已经逐渐遍及人们的生活中。通常，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)。外挂式触摸屏是将触摸屏与显示屏(Liquid Crystal Display，LCD)分开生产，然后贴合到一起成为具有触摸功能的显示屏。外挂式触摸屏存在制作成本较高、光透过率较低、模组较厚等缺点。内嵌式触摸屏将触摸屏的触控电极内嵌在显示屏内部，不仅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，受到各大面板厂家的青睐。
通常，内嵌式触摸屏是利用互电容或自电容的原理实现手指触摸位置的检测。例如，利用自电容的原理可以在触摸屏中设置多个同层设置且相互绝缘的自电容电极。当人体未触碰屏幕时，各自电容电极所承受的电容为一固定值，当人体触碰屏幕时，对应的自电容电极所承受的电容为固定值叠加人体电容。触控芯片在触控时间段通过检测各自电容电极的电容值变化可以判断出触控位置。由于人体电容可以作用于全部自电容，相对于人体电容仅能作用于互电容中的投射电容，由人体触碰屏幕所引起的触控变化量会大于利用互电容原理制作出的触摸屏，因此自电容的触摸屏相对于互电容的触摸屏能有效提高触控的信噪比，从而提高触控感应的准确性。
发明内容
本发明实施例提供一种内嵌式触摸屏及显示装置，可实现在不减少自电容电极的情况下，减少触摸屏的引出线。
本发明至少一个实施例提供一种触摸屏，包括衬底基板，位于所述衬底基板上呈矩阵排列的多个自电容电极，以及用于在触控时间阶段通过检测各 所述自电容电极的电容值变化以判断触控位置的触控芯片。所述多个自电容电极划分为若干彼此独立的自电容电极组和若干独立自电容电极；各所述独立自电容电极分别为一个所述自电容电极，且各所述独立自电容电极分别通过不同的导线与所述触控芯片电连接；各所述自电容电极组均包括至少两个位置不相邻的自电容电极，且属于同一自电容电极组的各所述自电容电极通过同一导线与所述触控芯片电连接，并且至少位于各所述自电容电极组中的各所述自电容电极的上、下、左、右四个相邻位置处的自电容电极均为独立自电容电极。
例如，各所述自电容电极组可包括沿列方向或行方向上的至少两个位置不相邻的自电容电极。
例如，属于同一所述自电容电极组中的各所述自电容电极之间可间隔一个所述独立自电容电极。
例如，各所述自电容电极组可包括两个所述自电容电极。
例如，至少与各所述独立自电容电极的上、下、左、右四个相邻位置处的自电容电极可均为所述自电容电极组中的自电容电极。
例如，位于各所述自电容电极组中的各所述自电容电极的相邻位置处的自电容电极可均为独立自电容电极。
例如，为了降低触摸屏的厚度，各所述自电容电极可由设置于所述衬底基板上的公共电极层分割而成；所述触控芯片还用于在显示时间段对各自电容电极加载公共电极信号。
例如，相邻的两个所述自电容电极相对的侧边可均为折线。
例如，相邻的两个所述自电容电极相对的为折线的侧边可均具有阶梯状结构，两阶梯状结构形状一致且相互匹配。
例如，相邻的两个所述自电容电极相对的为折线的侧边可均具有凹凸状结构，两凹凸状结构形状一致且相互匹配。
例如，所述触摸屏为外挂式触摸屏、覆盖表面式触摸屏或内嵌式触摸屏。
本发明实施例还提供了一种上述任一触摸屏的触控定位方法，包括：向所述触摸屏中的自电容电极输入触控检测信号；接收各所述自电容电极的反馈信号，并根据反馈信号将位于各位置处的所述自电容电极的电容值与第一预设电容值进行比较，将电容值大于所述第一预设电容值的自电容电极所在 的位置确定为第一位置；针对每一个所述第一位置，判断位于所述第一位置的上、下、左、右四个相邻位置处的自电容电极的电容值是否小于第二电容预设值；若位于所述第一位置的上、下、左、右四个相邻位置处的自电容电极中至少有两个自电容电极的电容值小于所述第二电容预设值，则将所述第一位置确定为鬼点位置；将去除所述鬼点位置的所述第一位置确定为触控位置。
针对上述位于各所述自电容电极组中的各所述自电容电极的相邻位置处的自电容电极均为独立自电容电极的触摸屏，本发明实施例还提供了一种上述触摸屏的触控定位方法，包括：向所述触摸屏中的自电容电极输入触控检测信号；接收各所述自电容电极的反馈信号，并根据反馈信号将位于各位置处的所述自电容电极的电容值与第一预设电容值进行比较，将电容值大于所述第一预设电容值的自电容电极所在的位置确定为第一位置；针对每一个所述第一位置，判断位于所述第一位置的相邻位置处的自电容电极的电容值是否小于第二电容预设值；若位于所述第一位置的相邻位置处的自电容电极中至少有一半自电容电极的电容值小于所述第二电容预设值，则将所述第一位置确定为鬼点位置；将去除所述鬼点位置的所述第一位置确定为触控位置。
本发明实施例还提供了一种显示装置，包括本发明实施例提供的上述任一触摸屏。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本发明的一些实施例，而非对本发明的限制。
图1为一种自电容触摸屏的俯视示意图；
图2为本发明实施例提供的触摸屏的俯视示意图；
图3a至图3f分别为本发明实施例提供的触摸屏的俯视示意图；
图4a和图4b分别为本发明实施例提供的触摸屏的驱动时序示意图；
图5a和图5b分别为本发明实施例提供的触摸屏中相邻的自电容电极相对的侧边设置为折线的结构示意图；
图6为本发明实施例提供的触摸屏的触控定位方法的流程示意图；
图7a为本发明实施例提供的触摸屏的触控示意图之一；
图7b为图7a所示的触摸屏中各自电容电极上的电容值分布示意图；
图8a为本发明实施例提供的触摸屏的触控示意图之二；
图8b为图8a所示的触摸屏中各自电容电极上的电容值分布示意图；
图9a为本发明实施例提供的触摸屏的触控示意图之三；
图9b为图9a所示的触摸屏中各自电容电极上的电容值分布示意图；
图10a为本发明实施例提供的触摸屏的触控示意图之四；
图10b为图10a所示的触摸屏中各自电容电极上的电容值分布示意图；
图11a为本发明实施例提供的触摸屏的触控示意图之五；
图11b为图11a所示的触摸屏中各自电容电极上的电容值分布示意图；
图12a为本发明实施例提供的触摸屏的触控示意图之六；
图12b为图12a所示的触摸屏中各自电容电极上的电容值分布示意图；
图13为本发明实施例提供的一种触摸屏的触控定位方法的流程示意图。
附图标记：
3-接线端子；4-周边走线；10-衬底基板；11-自电容电极；12-触控芯片；13-导线；111-彼此独立的自电容电极组；112-独立自电容电极。
具体实施方式
下面结合附图，对本发明实施例提供的触摸屏、其触控定位方法及显示装置的具体实施方式进行详细地说明。
附图中各膜层的厚度和形状不反映真实比例，目的只是示意说明本发明实施例的内容。
在采用自电容原理设计触摸屏时，每一个自电容电极需要通过单独的引出线与触控芯片上的接线端子(Pad)连接。如图1所示，每条引出线可包括：将自电容电极11连接至触摸屏的边框处的导线13，以及设置在边框处用于将自电容电极11导通至触控芯片的接线端子3的周边走线4。在实施时，由于自电容电极的数量非常多，对应的引出线也会非常多。以每个自电容电极的所占面积为5mm*5mm为例，5寸的液晶显示屏就需要264个自电容电极；若将每个自电容电极设计的更小一些，则会有更多的自电容电极，那么需要设置更多的引出线，同时触控芯片上也需要有更多的接线端子。因此，如何 在保证不减少自电容电极的情况下减少引出线和触控芯片上的接线端子，是在自电容触摸屏领域亟需解决的问题。
本发明实施例提供的一种触摸屏，如图2所示，包括衬底基板10，位于衬底基板10上呈矩阵排列的多个自电容电极11，以及用于在触控时间阶段通过检测各自电容电极11的电容值变化以判断触控位置的触控芯片12。
多个自电容电极划分为若干彼此独立的自电容电极组111和若干独立自电容电极112；各独立自电容电极112分别为一个自电容电极11，且各独立自电容电极112分别通过不同的导线13与触控芯片12电连接；各自电容电极组111均包括至少两个位置不相邻的自电容电极11，且属于同一自电容电极组111的各自电容电极11通过同一导线13与触控芯片12电连接，并且至少位于各自电容电极组111中的各自电容电极11的上、下、左、右四个相邻位置处的自电容电极11均为独立自电容电极112。
本发明实施例提供的上述触摸屏中，多个自电容电极划分为若干彼此独立的自电容电极组和若干独立自电容电极；各自电容电极组均包括至少两个位置不相邻的自电容电极，且属于同一自电容电极组的各自电容电极通过同一导线与触控芯片电连接，并且至少位于各自电容电极组中的各自电容电极的上、下、左、右四个相邻位置处的自电容电极均为独立自电容电极。因此与通常的一个自电容电极通过一条导线与触控芯片电连接相比，可以减少电连接自电容电极与触控芯片之间的导线，从而可以减少触摸屏中的引出线和触控芯片上的接线端子。
需要说明的是，在本发明实施例提供的触摸屏中，位置不相邻是指在任何方向上位置均不相邻，中间有间隔位置。这种不相邻不仅包括在行方向或列方向上，还包括在对角线方向。
例如，在实施时，自电容电极组中的自电容电极可以是位于任何位置不相邻的自电容电极，例如沿行方向上、沿列方向上或者沿对角线方向上不相邻，在此不作限定。
例如，如图3a和图3c所示，各自电容电极组111可以包括沿列方向上的至少两个位置不相邻的自电容电极11；或者，如图3b所示，各自电容电极组111可以包括沿行方向上的至少两个位置不相邻的自电容电极11。
例如，各自电容电极组中的自电容电极的数目可相等。
例如，如图3a和图3b所示，属于同一自电容电极组111中的各自电容电极11之间可以间隔一个独立自电容电极112。当然在实施时，如图3c所示，属于同一自电容电极组111中的各自电容电极11之间也可以间隔两个或者多个独立自电容电极112，在此不作限定。
例如，各自电容电极组中的自电容电极之间间隔的独立自电容电极的数目可相等。
例如，如图3d所示，与各独立自电容电极112上、下、左、右四个相邻位置处的自电容电极11均为自电容电极组111中的自电容电极11。
进一步地，如图3e所示，各自电容电极组111可包括两个自电容电极11。
例如，如图3f所示，位于各自电容电极组111中的各自电容电极11的相邻位置处的自电容电极11均为独立自电容电极112。
进一步地，用于电连接触控芯片与自电容电极的导线可以与自电容电极同层设置，也可以异层(不同层)设置，在此不作限定。
需要说明的是，本发明实施例提供的上述触摸屏可以应用于仅有触控功能的触摸屏(触摸面板)，也可以应用于既有触控功能又有显示功能的触摸显示屏(触摸显示面板)，在此不作限定。
进一步地，当本发明实施例提供的上述触摸屏应用于触摸显示屏时，可以是外挂式的，也可以是内嵌式的，在此不作限定。此外，该显示屏可以是液晶显示屏或有机电致发光显示屏等，在此不作限定。
例如，当本发明实施例提供的上述触摸屏应用于显示面板为液晶显示面板的内嵌式触摸显示面板时，各自电容电极由设置于衬底基板上的公共电极层分割而成；触控芯片还可用于在显示时间段对各自电容电极加载公共电极信号。
这样，本发明实施例提供的上述触摸屏复用显示面板的公共电极层作为自电容电极，将TN模式的公共电极层图形进行变更，形成多个相互独立的自电容电极以及将自电容电极连接至触控芯片的导线。相对于采用互电容原理实现触控功能时需要在通常的阵列基板内增加两层新的膜层，本发明实施例提供的触摸屏不需要增加额外的膜层，仅需要对原有的整层设置的公共电极层进行构图工艺形成对应的自电容电极和导线的图形，由此节省了生产成 本，提高了生产效率。
例如，由于本发明实施例提供的上述触摸屏复用公共电极层作为自电容电极，因此在实施时，需要采用触控和显示阶段分时驱动的方式，并且还可以将显示驱动芯片和触控芯片整合为一个芯片，进一步降低生产成本。
例如，如图4a和图4b所示的驱动时序图中，将触摸屏显示每一帧(V-sync)的时间分成显示时间段(Display)和触控时间段(Touch)。例如如图4a和图4b所示的驱动时序图中触摸屏的显示一帧的时间为16.7ms，选取其中4ms作为触控时间段，其他的12.7ms作为显示时间段。当然也可以根据IC芯片的处理能力适当的调整两者的时长，在此不做具体限定。在显示时间段(Display)，对触摸屏中的每条栅极信号线Gate1，Gate2……Gate n依次施加栅扫描信号，对数据信号线Data施加灰阶信号，与各自电容电极Cx1……Cx n连接的触控芯片向各自电容电极Cx1……Cx n分别施加公共电极信号，以实现液晶显示功能。在触控时间段(Touch)，如图4a所示，与各自电容电极Cx1……Cx n连接的触控芯片向各自电容电极Cx1……Cx n同时施加驱动信号，同时接收各自电容电极Cx1……Cx n的反馈信号；也可以如图4b所示，与各自电容电极Cx1……Cx n连接的触控芯片向各自电容电极Cx1……Cx n依次施加驱动信号，分别接收各自电容电极Cx1……Cx n的反馈信号，在此不做限定。通过对反馈信号的分析判断是否发生触控，以实现触控功能。
进一步地，在本发明实施例提供的触摸屏中，由于人体电容通过直接耦合的方式作用于各自电容电极的自电容。因此，人体触碰屏幕时，仅在触摸位置下方的自电容电极的电容值有较大的变化量，与触摸位置下方的自电容电极相邻的自电容电极的电容值变化量非常小。这样，在触摸屏上滑动时，不能确定自电容电极所在区域内的触控坐标。为解决此问题，在本发明实施例提供的内嵌式触摸屏中，可以将相邻的两个自电容电极相对的侧边均设置为折线，以便增大位于触摸位置下方的自电容电极相邻的自电容电极的电容值变化量。
在实施时，可以采用如下两种方式之一或组合的方式设置各自电容电极的整体形状。
1、可以将相邻的两个自电容电极11相对的为折线的侧边均设置为阶梯 状结构，两阶梯状结构形状一致且相互匹配，如图5a所示，图5a中示出了2*2个自电容电极11。
2、可以将相邻的两个自电容电极11相对的为折线的侧边均设置为凹凸状结构，两凹凸状结构形状一致且相互匹配，如图5b所示，图5b中示出了2*2个自电容电极11。
进一步地，由于包括有若干由至少两个自电容电极组成的自电容电极组，因此当触摸屏中自电容电极组中的自电容电极有一部分有触摸发生，另一部分无触摸发生时，由于属于同一自电容电极组中的各自电容电极是相互电连接的，因此同一自电容电极组中无触摸发生的自电容电极也会有电容量的发生。要准确的确定触控位置，就必须将这些实际上无触摸发生，却电容变化量又与有触摸发生的自电容电极的电容量变化相同的位置先排除掉才能够确定出真正有触摸发生的自电容电极的位置。
在本发明实施例提供的触摸屏中，如果每个自电容电极组中的自电容电极的上、下、左、右四个相邻自电容电极均为独立的自电容电极，则可以通过四个相邻位置处的自电容电极的电容值的变化，来确定自电容电极组中的自电容电极是否是真的有触摸发生，即确定该自电容电极所在的位置是否为鬼点位置。
因此，本发明实施例还提供了一种上述触摸屏的触控定位方法，如图6所示，可以包括以下步骤：
S101、向触摸屏中的自电容电极输入触控检测信号；
S102、接收各自电容电极的反馈信号，并根据反馈信号将位于各位置处的自电容电极的电容值与第一预设电容值进行比较；
S103、将电容值大于第一预设电容值的自电容电极所在的位置确定为第一位置；
S104、针对每一个第一位置，判断位于第一位置的上、下、左、右四个相邻位置处的自电容电极的电容值是否小于第二电容预设值；
S105、若位于第一位置的上、下、左、右四个相邻位置处的自电容电极中至少有两个自电容电极的电容值小于第二电容预设值，则将该第一位置确定为鬼点位置；
S106、将去除鬼点位置的第一位置确定为触控位置。
本发明实施例提供的上述触摸屏的触控定位方法，首先将电容值大于第一预设电容值的自电容电极所在的位置确定为第一位置；再根据第一位置处的自电容电极的上、下、左、右四个相邻位置处的自电容电极的电容值的变化，从第一位置中确定出鬼点位置；然后将去除鬼点位置的第一位置确定为触控位置，从而实现触摸屏的准确触控。
例如，在实施时，在本发明实施例提供的上述触控定位方法中，第一预设电容值一般为确定为有触摸的最小电容值，这可以根据经验值得到，这里不再详述。
例如，在实施时，在本发明实施例提供的上述触控定位方法中，第二预设电容值一般为确定为由于触摸对最邻近位置处的自电容电极影响所带来的最小电容值，这也可以根据经验值得到，这里不再详述。
下面以图3e所示结构的触摸屏为例，通过具体的实施例来说明本发明实施例提供的上述触控定位方法。
实例一
例如，如图7a、图8a、图9a、图10a、图11a和图12a所示，取5*5个自电容电极11，图中X表示所在的行数(X＝1,2…5)，Y表示所在的列数(Y＝1,2…5)，各自电容电极11所在的位置表示为(X，Y)。假设触摸屏无触摸时，位于各位置处的自电容电极的电容量均为0，一个手指所带的电容量为500；当一个手指触摸到一个位置时，该位置处的自电容电极上的电容量就变为500，当一个手指触摸到两个位置时，该两个位置处的自电容电极上的电容量分别变为250，当有两个手指同时触摸一个位置时，该位置处的自电容电极上的电容量变为1000。并且，当手指触摸到某一位置时，不可避免的会引起位于该位置四周的位置上自电容电极的电容量发生变化，且与该位置离得越近的位置处的自电容电极的电容量越大，假设离得最近的自电容电极的电容量为50，离得稍远的自电容电极也会有影响，但是由于影响比较小，这里忽略不计，假设第一预设电容值为220，第二预设电容值为25。
一、触摸屏上有一个触控点的第一种情况
当触摸屏中自电容电极组中的其中一个自电容电极所在的位置有触摸时，如图7a所示的位置(3，4)，根据上述假设，图7a中各位置处的自电容电极11上的电容量如图7b所示。
1、将图7b中各位置处的自电容电极11的电容值与220(第一预设电容值)进行比较，位置(3，2)和(3，4)处的自电容电极11的电容值大于220，因此位置(3，2)和(3，4)确定为第一位置。
2、针对每一个第一位置：
根据位置(3，2)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(3，2)的上、下、左、右四个相邻位置中有三个相邻位置处的自电容电极11上电容量小于25(第二预设电容值)，因此位置(3，2)为鬼点位置；
根据位置(3，4)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(3，4)的上、下、左、右四个相邻位置处的自电容电极11上的电容量均大于25(第二预设电容值)，因此位置(3，4)不是鬼点位置；
因此第一位置中只有位置(3，2)为鬼点位置。
3、从第一位置(3，2)和(3，4)中去除鬼点位置(3，2)，因此剩余的位置(3，4)就为触控位置。
二、触摸屏上有一个触控点的第二种情况
当触摸屏中自电容电极组中的其中一个自电容电极以及与其相邻的独立自电容电极所在的位置处有触摸时，如图8a所示的位置(2，4)和(3，4)，根据上述假设，图8a中各位置处的自电容电极11上的电容量如图8b所示。
1、将图8b中各位置处的自电容电极11的电容值与220(第一预设电容值)进行比较，位置(2，4)、(3，2)和(3，4)处的自电容电极11的电容值大于220，因此位置(2，4)、(3，2)和(3，4)确定为第一位置。
2、针对每一个第一位置：
根据位置(2，4)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(2，4)的上、下、左、右四个相邻位置中只有一个位置处的自电容电极11上的电容量小于25(第二预设电容值)，因此位置(2，4)不是鬼点位置；
根据位置(3，2)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(3，2)的上、下、左、右四个相邻位置中有三个位置处的自电容电极11上的电容量小于25(第二预设电容值)，因此位置(3， 2)为鬼点位置；
根据位置(3，4)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(3，4)的上、下、左、右四个相邻位置中只有一个位置处的自电容电极11上的电容量小于25(第二预设电容值)，因此位置(3，4)不是鬼点位置；
因此第一位置只有位置(3，2)为鬼点位置。
3、从第一位置(2，4)、(3，2)和(3，4)中去除鬼点位置(3，2)，因此剩余的位置(2，4)和(3，4)就为触控位置。
三、触摸屏上有两个触控点的第一种情况
当触摸屏中自电容电极组中的两个自电容电极所在的位置均有触摸时，如图9a所示的位置(3，2)和(3，4)，根据上述假设，图9a中各位置处的自电容电极11上的电容量如图9b所示。
1、将图9b中各位置处的自电容电极11的电容值与220(第一预设电容值)进行比较，位置(3，2)和(3，4)处的自电容电极11的电容值大于220，因此位置(3，2)和(3，4)确定为第一位置。
2、针对每一个第一位置：
根据位置(3，2)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(3，2)的上、下、左、右四个相邻位置处的自电容电极11上的电容量均大于25(第二预设电容值)，因此位置(3，2)不是鬼点位置；
根据位置(3，4)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(3，4)的上、下、左、右四个相邻位置处的自电容电极11上的电容量均大于25(第二预设电容值)，因此位置(3，4)不是鬼点位置；
因此第一位置中没有鬼点位置。
3、因此第一位置(3，2)和(3，4)就为触控位置。
四、触摸屏上有两个触控点的第二种情况
当触摸屏中自电容电极组中的两个自电容电极以及与其相邻的独立自电容电极所在的位置处有触摸时，如图10a所示的位置(2，2)和(3，2)，(2，4)和(3，4)，根据上述假设，图10a中各位置处的自电容电极11上的电容 量如图10b所示。
1、将图10b中各位置处的自电容电极11的电容值与220(第一预设电容值)进行比较，位置(2，2)、(2，4)、(3，2)和(3，4)处的自电容电极11的电容值大于220，因此位置(2，2)、(2，4)、(3，2)和(3，4)确定为第一位置。
2、针对每一个第一位置：
根据位置(2，2)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(2，2)的上、下、左、右四个相邻位置中只有一个位置处的自电容电极11上的电容量小于25(第二预设电容值)，因此位置(2，2)不是鬼点位置；
根据位置(2，4)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(2，4)的上、下、左、右四个相邻位置中只有一个位置处的自电容电极11上的电容量小于25(第二预设电容值)，因此位置(2，4)不是鬼点位置；
根据位置(3，2)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(3，2)的上、下、左、右四个相邻位置中只有一个位置处的自电容电极11上的电容量小于25(第二预设电容值)，因此位置(3，2)不是鬼点位置；
根据位置(3，4)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(3，4)的上、下、左、右四个相邻位置中只有一个位置处的自电容电极11上的电容量小于25(第二预设电容值)，因此位置(3，4)不是鬼点位置；
因此第一位置中没有鬼点位置。
3、因此第一位置(2，2)、(2，4)、(3，2)和(3，4)就为触控位置。
五、触摸屏上有两个触控点的第三种情况
当触摸屏中自电容电极组中的其中一个自电容电极以及与其相邻的两个独立自电容电极所在的位置处有触摸时，如图11a所示的位置(2，4)、(3，4)和(4，4)，根据上述假设，图11a中各位置处的自电容电极11上的电容量如图11b所示。
1、将根据图11b中各位置处的自电容电极11的电容值与220(第一预 设电容值)进行比较，位置(2，4)、(3，2)、(3，4)和(4，4)处的自电容电极11的电容值大于220，因此位置(2，4)、(3，2)、(3，4)和(4，4)确定为第一位置。
2、针对每一个第一位置：
根据位置(2，4)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(2，4)的上、下、左、右四个相邻位置中只有一个位置处的自电容电极11上的电容量小于25(第二预设电容值)，因此位置(2，4)不是鬼点位置；
根据位置(3，2)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(3，2)的上、下、左、右四个相邻位置中有三个位置处的自电容电极11上的电容量小于25(第二预设电容值)，因此位置(3，2)为鬼点位置；
根据位置(3，4)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(3，4)的上、下、左、右四个相邻位置处的自电容电极11上的电容量均大于25(第二预设电容值)，因此位置(3，4)不是鬼点位置；
根据位置(4，4)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(4，4)的上、下、左、右四个相邻位置中只有一个位置处的自电容电极11上的电容量小于25(第二预设电容值)，因此位置(4，4)不是鬼点位置；
因此第一位置中只有位置(3，2)为鬼点位置。
3、从第一位置(2，4)、(3，2)、(3，4)和(4，4)中去除鬼点位置(3，2)，因此剩余的位置(2，4)、(3，4)和(4，4)就为触控位置。
六、触摸屏上有三个触控点的情况
当触摸屏中一个自电容电极组中的其中一个自电容电极和与其相邻的独立自电容电极所在的位置处有触摸，一个独立自电容电极所在的位置处有触摸，以及另一个自电容电极组中的其中一个自电容电极所在的位置处有触摸时，如图12a所示的位置(3，3)和(3，4)，(4，3)和(4，4)，根据上述假设，图12a中各位置处的自电容电极11上的电容量如图12b所示。
1、将图12b中各位置处的自电容电极11的电容值与220(第一预设电 容值)进行比较，位置(3，2)、(3，3)、(3，4)、(4，3)、(4，4)和(4，5)处的自电容电极11的电容值大于220，因此位置(3，2)、(3，3)、(3，4)、(4，3)、(4，4)和(4，5)确定为第一位置。
2、针对每一个第一位置：
根据位置(3，2)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(3，2)的上、下、左、右四个相邻位置中有三个位置处的自电容电极11上的电容量小于25(第二预设电容值)，因此位置(3，2)为鬼点位置；
根据位置(3，3)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(3，3)的上、下、左、右四个相邻位置中只有一个位置处的自电容电极11上的电容量小于25(第二预设电容值)，因此位置(3，3)不是鬼点位置；
根据位置(3，4)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(3，4)的上、下、左、右四个相邻位置处的自电容电极11上的电容量均大于25(第二预设电容值)，因此位置3，4)不是鬼点位置；
根据位置(4，3)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(4，3)的上、下、左、右四个相邻位置中有两个位置处的自电容电极11上的电容量小于25(第二预设电容值)，因此位置(4，3)是鬼点位置；
根据位置(4，4)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(4，4)的上、下、左、右四个相邻位置中只有一个位置处的自电容电极11上的电容量小于25(第二预设电容值)，因此位置(4，4)不是鬼点位置；
根据位置(4，5)的上、下、左、右四个相邻位置处的自电容电极11的电容值，可以确定位置(4，5)的上、下、左、右四个相邻位置中有两个位置处的自电容电极11上的电容量小于25(第二预设电容值)，因此位置(4，5)为鬼点位置；
因此第一位置中只有位置(3，2)和(4，5)为鬼点位置。
3、从第一位置(3，2)、(3，3)、(3，4)、(4，3)、(4，4)和(4，5) 中去除鬼点位置(3，2)和(4，5)，因此剩余的位置(3，3)、(3，4)、(4，3)和(4，4)就为触控位置。
例如，在上述实施例中，当触摸屏上有触摸时，各位置处的自电容电极上的电容量均为根据假设的估算值，只是为了更好的说明本发明的触控定位方法，不作为对本发明的限定。
上述实施例只是就几种触摸点位置的情况说明本发明实施例提供的触控定位方法，从上述实施例中可以看出，本发明实施例提供的触控方法可以进行单点触控，也可以进行多点触控。
进一步地，对于自电容电极组包括大于两个自电容电极的触摸屏的触控方法与上述实施例原理相同，在此不再赘述。
例如，本发明实施例提供的触控方法，对于自电容电极组包括大于两个自电容电极的触摸屏来说，更适用于单点触控。
基于同一发明构思，针对上述位于各自电容电极组中的各自电容电极的相邻位置处的自电容电极均为独立自电容电极的触摸屏，例如图3f所示的触摸屏，本发明实施例还提供了一种上述触摸屏的触控定位方法，如图13所示，可以包括以下步骤：
S201、向触摸屏中的自电容电极输入触控检测信号；
S202、接收各自电容电极的反馈信号，并根据反馈信号将位于各位置处的自电容电极的电容值与第一预设电容值进行比较；
S203、将电容值大于第一预设电容值的自电容电极所在的位置确定为第一位置；
S204、针对每一个第一位置，判断位于第一位置的相邻位置处的自电容电极的电容值是否小于第二电容预设值；
S205、若位于第一位置的相邻位置处的自电容电极中至少有一半自电容电极的电容值小于第二电容预设值，则将第一位置确定为鬼点位置；
S206、将去除鬼点位置的第一位置确定为触控位置。
对于上述图13所示触控定位方法，原理与图6所示的触控定位方法相同，只是确定鬼点位置是需要判断的相邻位置的自电容电极的数量可能会增加，以图8a为例，每个自电容电极组中的自电容电极有8个相邻位置，因此需要判断8个，而图6只判断8个相邻位置中的上、下、左、右四个相邻位置， 其它步骤均相同，故在此不作赘述。
基于同一发明构思，本发明实施例还提供了一种显示装置，包括本发明实施例提供的上述任一触摸屏，该显示装置可以为：手机、手表、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。该显示装置的实施可以参见上述触摸屏的实施例，重复之处不再赘述。
本发明实施例提供的触摸屏、其触控定位方法及显示装置，在触摸屏中多个自电容电极划分为若干彼此独立的自电容电极组和若干独立自电容电极；各自电容电极组均包括至少两个位置不相邻的自电容电极，且属于同一自电容电极组的各自电容电极通过同一导线与触控芯片电连接，并且例如至少位于各自电容电极组中的各自电容电极的上、下、左、右四个相邻位置处的自电容电极均为独立自电容电极。因此与通常的一个自电容电极通过一条导线与触控芯片电连接相比，可以减少电连接自电容电极与触控芯片之间的导线，从而可以减少触摸屏中的引出线和触控芯片上的接线端子。
以上所述仅是本发明的示范性实施方式，而非用于限制本发明的保护范围，本发明的保护范围由所附的权利要求确定。
本专利申请要求于2014年9月19日递交的中国专利申请第201410484054.X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。

Claims (15)

  1. 一种触摸屏，包括衬底基板，位于所述衬底基板上呈矩阵排列的多个自电容电极，以及用于在触控时间阶段通过检测各所述自电容电极的电容值变化以判断触控位置的触控芯片；
    其中，所述多个自电容电极划分为若干彼此独立的自电容电极组和若干独立自电容电极；
    各所述独立自电容电极分别为一个所述自电容电极，且各所述独立自电容电极分别通过不同的导线与所述触控芯片电连接；
    各所述自电容电极组均包括至少两个位置不相邻的自电容电极，且属于同一自电容电极组的各所述自电容电极通过同一导线与所述触控芯片电连接，并且至少位于各所述自电容电极组中的各所述自电容电极的上、下、左、右四个相邻位置处的自电容电极均为独立自电容电极。
  2. 如权利要求1所述的触摸屏，其中，各所述自电容电极组包括沿列方向或行方向上的至少两个位置不相邻的自电容电极。
  3. 如权利要求1或2所述的触摸屏，其中，属于同一所述自电容电极组中的各所述自电容电极之间间隔一个所述独立自电容电极。
  4. 如权利要求1-3任意一项所述的触摸屏，其中，各所述自电容电极组包括两个所述自电容电极。
  5. 如权利要求1-4任一项所述的触摸屏，其中，与各所述独立自电容电极上、下、左、右四个相邻位置处的自电容电极均为所述自电容电极组中的自电容电极。
  6. 如权利要求1-4任一项所述的触摸屏，其中，位于各所述自电容电极组中的各所述自电容电极的相邻位置处的自电容电极均为独立自电容电极。
  7. 如权利要求1-6任一项所述的触摸屏，其中，各所述自电容电极由设置于所述衬底基板上的公共电极层分割而成；
    所述触控芯片还用于在显示时间段对各自电容电极加载公共电极信号。
  8. 如权利要求1-7任一项所述的触摸屏，其中，相邻的两个所述自电容电极相对的侧边均为折线。
  9. 如权利要求8所述的触摸屏，其中，相邻的两个所述自电容电极相对 的为折线的侧边均具有阶梯状结构，两阶梯状结构形状一致且相互匹配。
  10. 如权利要求8所述的触摸屏，其中，相邻的两个所述自电容电极相对的为折线的侧边均具有凹凸状结构，两凹凸状结构形状一致且相互匹配。
  11. 如权利要求1-10任一项所述的触摸屏，其中，所述触摸屏为外挂式触摸屏、覆盖表面式触摸屏或内嵌式触摸屏。
  12. 如权利要求1-11任一项所述的触摸屏，其中，所述触摸屏为液晶显示屏或有机电致发光显示屏。
  13. 一种如权利要求1-12任一项所述的触摸屏的触控定位方法，包括：
    向所述触摸屏中的自电容电极输入触控检测信号；
    接收各所述自电容电极的反馈信号，并根据反馈信号将位于各位置处的所述自电容电极的电容值与第一预设电容值进行比较，将电容值大于所述第一预设电容值的自电容电极所在的位置确定为第一位置；
    针对每一个所述第一位置，判断位于所述第一位置的上、下、左、右四个相邻位置处的自电容电极的电容值是否小于第二电容预设值；
    若位于所述第一位置的上、下、左、右四个相邻位置处的自电容电极中至少有两个自电容电极的电容值小于所述第二电容预设值，则将所述第一位置确定为鬼点位置；
    将去除所述鬼点位置的所述第一位置确定为触控位置。
  14. 一种如权利要求6所述的触摸屏的触控定位方法，其中，包括：
    向所述触摸屏中的自电容电极输入触控检测信号；
    接收各所述自电容电极的反馈信号，并根据反馈信号将位于各位置处的所述自电容电极的电容值与第一预设电容值进行比较，将电容值大于所述第一预设电容值的自电容电极所在的位置确定为第一位置；
    针对每一个所述第一位置，判断位于所述第一位置的相邻位置处的自电容电极的电容值是否小于第二电容预设值；
    若位于所述第一位置的相邻位置处的自电容电极中至少有一半自电容电极的电容值小于所述第二电容预设值，则将所述第一位置确定为鬼点位置；
    将去除所述鬼点位置的所述第一位置确定为触控位置。
  15. 一种显示装置，包括如权利要求1-12任一项所述触摸屏。
PCT/CN2015/070046 2014-09-19 2015-01-04 触摸屏、其触控定位方法及显示装置 WO2016041301A1 (zh)

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