WO2015158097A1 - 显示面板及其驱动方法、显示装置 - Google Patents

显示面板及其驱动方法、显示装置 Download PDF

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Publication number
WO2015158097A1
WO2015158097A1 PCT/CN2014/085683 CN2014085683W WO2015158097A1 WO 2015158097 A1 WO2015158097 A1 WO 2015158097A1 CN 2014085683 W CN2014085683 W CN 2014085683W WO 2015158097 A1 WO2015158097 A1 WO 2015158097A1
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Prior art keywords
electrode
disposed
sub
electrodes
display panel
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PCT/CN2014/085683
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English (en)
French (fr)
Inventor
杨盛际
董学
王海生
王磊
王春雷
刘英明
谢晓波
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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Priority to US14/435,748 priority Critical patent/US9851832B2/en
Publication of WO2015158097A1 publication Critical patent/WO2015158097A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • G—PHYSICS
    • 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
    • G02F1/136209—Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
    • 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
    • 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
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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
    • G06F3/0416—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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G09G3/3655—Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0278—Details of driving circuits arranged to drive both scan and data electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2354/00—Aspects of interface with display user

Definitions

  • the present invention relates to the field of display, and in particular to a display panel and a driver thereof And a display device including the display panel.
  • the touch screen is the latest information input device, which can be simple, convenient and natural. Realize human-computer interaction and provide people with a new way of multimedia human-computer interaction, due to its It has the advantages of sensitive touch response and multi-touch support, which greatly satisfies people's vision. And the enjoyment of touch.
  • a touch screen includes at least a display screen for display and a touch screen for touch.
  • the touch screen can be divided into: an external touch screen according to the composition structure (Add on Mode) Touch Panel), On-Cell Touch Panel and On Cell Touch Panel In Cell Touch Panel, which is inside, on the surface of the display or
  • the sensing electrode Rx and the driving electrode Tx are externally formed.
  • the touch screen has a variety of different knots Structure, but each includes a sensing electrode Rx and a driving electrode Tx, and respectively connected to the corresponding sensing Signal line and drive signal line.
  • the touch screen passes the detection a change in electric field between the sensing electrode Rx and the driving electrode Tx to "perceive" the touch of the human body, Thereby implementing the touch function.
  • the sensing electrode Rx is usually Longitudinal strips along the black matrix (in the case of current color film substrates, the width of the longitudinal strips is less than The width of the horizontal strip) is set. Because the narrow longitudinal strips in the black matrix cannot be completely covered Blocking the pattern of the sensing electrode Rx, causing the sensing electrode Rx to appear in the normal display condition The display causes obstacles and affects the display effect.
  • An object of the present invention is to provide a display panel and a driving method thereof and a A display device of the display panel.
  • the display panel is in the same layer as the common electrode Setting and utilizing a redundant data line structure to electrically connect the drive electrodes of the same column to each other, The capacitance of the driving electrode to the ground is reduced, and the touch sensitivity is improved; at the same time, the sensing electrode is Coverage of a wider strip (ie, a horizontal strip in a black matrix) set in a black matrix In the area, the image display effect is improved.
  • the technical solution adopted to solve the technical problem of the present invention is a display panel, the display The display panel includes an array substrate and a color filter substrate, wherein the array substrate is provided with a first An electrode and a second electrode, wherein the color filter substrate is provided with a third electrode, the first electrode and The second electrode is disposed on the same layer, and the first electrode and the second electrode are alternately spaced apart Rows are disposed and electrically isolated from each other, and the second electrode spatially corresponds to the third electrode Settings.
  • the first electrode comprises a plurality of sub-electrodes arranged in a plurality of rows and columns, A plurality of the sub-electrodes in the same column are electrically connected to each other, and a plurality of the sub-electrodes in different columns
  • the electrodes are electrically isolated from each other; the extending direction of the second electrode and the sub-electricity of the first electrode
  • the rows of poles are arranged in the same direction, and a plurality of the second electrodes are electrically connected to each other.
  • a plurality of the sub-electrodes in the same column pass through the first electrode connection line Electrically connected to each other, the extending direction of the first electrode connection line and the sub-electricity of the first electrode
  • the rows of poles are arranged in a vertical direction.
  • the first electrode connection line and the first electrode and the second electricity An insulating layer is disposed between the poles, and the insulating layer is opened in a region corresponding to the first electrode Providing an insulating layer via, the first electrode connection line being disposed to correspond to the first electrode a region having at least two branch lines connected in parallel, the branch line being connected to the first electrode Electrically connecting through the insulating layer via holes; the first electrode connection line is disposed to be in the second There is only one branch line in the region corresponding to the electrode, and the branch line and the second electrode pass through The insulating layer is electrically isolated.
  • the array substrate comprises a plurality of data lines, and the first electrode is connected Lines are alternately spaced from the data lines, and the data lines extend in a direction opposite to the first The electrode connecting wires extend in the same direction.
  • the first electrode connection line is disposed in the same layer as the data line,
  • the first electrode connection line and the data line are formed in the same patterning process using the same material to make.
  • the array substrate is further provided with a gate line, the gate line and the first An electrode connection line and the data line are arranged to intersect to divide the array substrate into multiple a sub-pixel region, each of the sub-pixel regions is provided with a thin film transistor, the same Thin film crystals in sub-pixel regions of adjacent rows in the sub-pixel regions on both sides of the data line
  • the tube is diagonally disposed, and the source of the thin film transistor disposed at the diagonal is the same number
  • the gate is electrically connected to the different gate lines.
  • a pixel electrode is further disposed in the sub-pixel region, and each of the images a ferrite electrode electrically connected to a drain of the thin film transistor in the sub-pixel region; An electrode and the second electrode are disposed above the pixel electrode, and the second electrode And at least partially overlapping the pixel electrode in a right projection direction.
  • the color filter substrate further comprises a black matrix and a color film layer, the black matrix a grid structure formed by intersecting strips having unequal widths, the third electrode being disposed on Aside from the side of the black matrix of the color filter substrate and disposed on the strip having a large width, The third electrodes are electrically connected to each other through a third electrode connection line.
  • the horizontal between the adjacent first electrode and the third electrode a distance of one of the sub-pixel regions in a direction perpendicular to a row arrangement direction of the first electrode The width up.
  • a display device includes a display panel, wherein the display panel is as described above Display panel.
  • a driving method of a display panel comprising an array substrate and a color film base a plate, wherein the array substrate is provided with a first electrode and a second electrode, and the color film base a third electrode is disposed in the plate, and the first electrode and the second electrode are disposed on the same layer.
  • the first electrode and the second electrode are alternately arranged in parallel and electrically isolated from each other,
  • the second electrode is spatially disposed corresponding to the third electrode
  • the driving method includes steps Step: multiplexing the first electrode into a partial common electrode for display and a touch control Drive electrode.
  • the first electrode comprises a plurality of sub-electrodes arranged in a plurality of rows and columns, a plurality of the sub-electrodes in the same column are electrically connected to each other through the first electrode connection line, a plurality of the sub-electrodes of different columns are electrically isolated from each other; a plurality of the second electrodes are electrically connected to each other Connecting, the plurality of the third electrodes are electrically connected to each other through a third electrode connection line,
  • the first electrode is time-division multiplexed into a part of the common electrode for display and the driving power for touch
  • the step of further comprising: in the first phase of time division multiplexing, for the first electrode and the The second electrode provides a common reference voltage; in the second phase of time division multiplexing, the first The electrode provides a touch driving signal to provide a touch sensing signal for the third electrode.
  • the array substrate comprises a plurality of data lines, and the first electrode is connected a line is alternately spaced from the data line; a gate line is further disposed in the array substrate, a gate line is disposed to intersect the first electrode connection line and the data line to thereby form the array
  • the substrate is divided into a plurality of sub-pixel regions, and each of the sub-pixel regions is provided with a thin film crystal a sub-pixel region of an adjacent row in the sub-pixel region on both sides of the same data line
  • the thin film transistor is disposed diagonally, and the step of providing a common reference voltage is further
  • the method includes: in the first stage, the thin film transistor is adjacent to the adjacent column through the same data line a source output data signal, through the different gate lines to the adjacent rows of the thin film crystal a gate outputting a scan signal; and the step of providing a touch sensing signal further
  • the method includes: in the second stage, transmitting to the column of the first electrodes through the first electrode connection line A driving signal is output, and the third
  • the length of time of the first phase is greater than or equal to the second phase Length of time, the sum of the lengths of the first phase and the second phase is equal to the frame week The length of time.
  • the invention has the beneficial effects that the display panel provided by the invention does not increase the process
  • the original plate-shaped common electrode is divided into rectangular segments to ensure The common electrode used for display and the driving electrode used for touch control are electrically isolated from each other;
  • the redundant data lines are applied to realize the connection between the driving electrodes, so that they can simultaneously satisfy The touch function and the display function require that the display device including the display panel has Good image display and high touch sensitivity.
  • FIG. 1 is a cross-sectional view of a display panel in accordance with an embodiment of the present invention.
  • FIG. 2 is an orthographic projection of the driving electrode, the sensing electrode, and the common electrode of FIG. A schematic diagram of the relative positions of the respective electrodes obtained;
  • Figure 3 is a partially enlarged schematic view of a region A in Figure 2;
  • FIG. 4 is a schematic view showing the connection of driving electrodes according to an embodiment of the present invention.
  • FIG. 5 is a schematic plan view showing a pixel distribution according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a display device according to an embodiment of the present invention.
  • FIG. 7 is a timing signal waveform diagram in accordance with an embodiment of the present invention.
  • 1-array substrate 11-first substrate; 12-thin film transistor; 13-first electrode; 131- First electrode connection line; 14-second electrode; 15-insulating layer via; 16-pixel electrode; 17- Grid line; 18-data line; 2-color film substrate; 21-second substrate; 22-black matrix; 23-color film Layer; 24-third electrode; 241-third electrode connection line; 3-liquid crystal layer; 31-liquid crystal molecule; 41-gate driver; 42-source driver; 43-voltage converter; 44-transmitter; 45- Touch controller.
  • One aspect of the present invention provides a display panel including an array a substrate and a color filter substrate, wherein the array substrate is provided with a first electrode and a second electrode, a third electrode is disposed in the color filter substrate, and the first electrode and the second electrode are disposed on In the same layer, the first electrode and the second electrode are alternately spaced and electrically separated from each other The second electrode is spatially disposed corresponding to the third electrode.
  • Another aspect of the present invention provides a display device including a display panel
  • the display panel adopts the above display panel.
  • Yet another aspect of the present invention provides a driving method of a display panel, the display
  • the panel includes an array substrate and a color filter substrate, wherein the array substrate is provided with a first electric And a second electrode, wherein the color filter substrate is provided with a third electrode, the first electrode and the The second electrode is disposed on the same layer, and the first electrode and the second electrode are alternately spaced apart in parallel Provided and electrically isolated from each other, the second electrode and the third electrode are spatially corresponding
  • the driving method includes time-multiplexing the first electrode into a part for display. Common electrode and drive electrode for touch.
  • a display panel has an in-cell touch screen.
  • a liquid crystal display device that can be used in the ADS mode.
  • the display panel includes an array substrate 1 and a color filter substrate 2.
  • the array substrate 1 includes a first substrate 11 and a first portion disposed above the first substrate 11
  • the color filter substrate 2 includes a second substrate 21 and is disposed on The third electrode 24 above the second substrate 21.
  • the first electrode 13 and the second electrode 14 are disposed in the same layer.
  • the first electrode 13 and the second electrode 14 are alternately arranged in parallel and electrically isolated from each other.
  • the second electrode 14 and the third electrode 24 are spatially disposed correspondingly.
  • the space pair "should be set" means the second electrode 14 included in the array substrate 1 and included in the color filter substrate
  • the third electrodes 24 of 2 are disposed opposite to each other.
  • the first electrode 13 can By time division multiplexing, in particular, the first electrode 13 can be used as an array substrate for display Part of the common electrode Vcom of the common voltage and the driving electrode Tx at the time of touch.
  • the pole 14 can be used as a partial common electrode for providing a common voltage to the array substrate when displayed Vcom.
  • the third electrode 24 can be used as the sensing electrode Rx at the time of touch.
  • the first electrode 13 includes a plurality of sub-electrodes arranged in a plurality of rows and columns. A plurality of sub-electrodes in the same column are electrically connected to each other, and a plurality of sub-electrodes in different columns are mutually connected Electrically isolated.
  • the extending direction of each of the second electrodes 14 and the row of the sub-electrodes of the first electrode 13 The column direction is the same.
  • the plurality of second electrodes 14 are electrically connected to each other.
  • the row arrangement direction of the sub-electrodes of the pole 13 is the direction in which the sub-electrodes have a continuous distribution. In FIG.
  • the row arrangement direction of the sub-electrodes of the first electrode 13 is the phase of the finger electrodes along the phase The direction in which the gap regions formed between the adjacent second electrodes 14 are arranged.
  • Figure 2 It is shown that a plurality of sub-electrodes in the same column are electrically connected to each other through the first electrode connection line 131.
  • the extending direction of the first electrode connection line 131 and the row arrangement of the sub-electrodes of the first electrode 13 Vertical ( Figure 2 also shows the portion of the first electrode connection line 131 at the edge of the display area The wiring direction at which it is parallel to the row arrangement direction of the sub-electrodes).
  • the color filter substrate 2 further includes a black matrix 22 and color Film layer 23.
  • the black matrix 22 is a strip of unequal widths (including longitudinal strips and lateral strips)
  • the grid structure formed by the intersection, the width of the transverse strip is greater than the width of the longitudinal strip.
  • Third electricity The poles 24 are disposed on a side of the lateral strip of the black matrix 22 that is remote from the color filter substrate. Multiple The third electrodes 24 are electrically connected to each other. As shown in FIGS. 2 and 5, the third electrode 24 passes through the third Electrode connection line 241 (Fig. 2 also shows a portion of the third electrode connection line 241 at both ends of the display The wiring directions at the edges of the display areas are electrically connected to each other.
  • the black matrix 22 Since the third electrode 24 is disposed at this time a wider lateral strip in the black matrix 22, so the black matrix 22 enables the third electrode 24 completely falls within its orthographic projection direction, that is, the black matrix 22 can completely block the sensing electrode Rx Graphics. Therefore, it is possible to reduce or even eliminate the fact that the sensing electrode is blocked from the normal display area. A problem that can be caused by the display screen.
  • the color filter substrate 2 and A liquid crystal layer 3 is disposed between the array substrates 1, and the liquid crystal layer 3 includes a plurality of liquid crystal molecules 31.
  • the array substrate 1 includes a plurality of data lines 18, and a first electrode connection line. 131 is alternately spaced from the data line 18, and the extending direction of the data line 18 is opposite to the first electrode
  • the connecting wires 131 extend in the same direction.
  • the first electrode connection line 131 is disposed in the same layer as the data line 18, and the first electrode connection line 131
  • the same material as the data line 18 is used in the same patterning process.
  • first The electrode connection line 131 and the data line 18 may each be formed of a metal such as molybdenum or aluminum.
  • the array substrate 1 is further provided with a gate line 17, a gate line 17 and a first electric
  • the pole connection line 131 and the data line 18 are disposed to intersect, thereby dividing the array substrate 1 into a plurality of Sub-pixel area.
  • a thin film transistor 12 thin film transistor is disposed in each sub-pixel region It is a part of the array substrate 1, which is not specifically shown in FIG. 1).
  • the thin film transistors 12 in the sub-pixel region on the left side of one data line 18 are provided Placed in the lower right corner of the sub-pixel area in which it is located, and the child on the right side of the same data line 18
  • the thin film transistors 12 in the pixel region are disposed on the upper left of the sub-pixel region in which they are located
  • the source of the thin film transistor 12 disposed at the diagonal is electrically connected to the same data line 18.
  • the array substrate is a dual gate structure. Thin in sub-pixel regions in different columns in the single-gate structure used in the prior art The source of the film transistor needs to be connected to each of the data lines, and the double gate type of the embodiment In the structure, only one data line is set between adjacent two columns of sub-pixel regions, and the number is The data lines are electrically connected to the sources of the thin film transistors in the sub-pixel regions on both sides thereof Just fine. Therefore, the data line of the unconnected thin film transistor can be used as the electrode connection line (ie, this The first electrode connection line 131 in the embodiment can be regarded as a redundant data line structure.
  • the electrode connection line is disposed in the same layer as the data line, and the electrode connection line and the data line Can be formed in the same patterning process using the same material, so no additional work is required
  • the array substrate for completing the structure can be prepared by an art step.
  • the rows and columns described in this embodiment are orthogonal to each other.
  • the horizontal strips and the longitudinal strips are arranged orthogonally to each other, and the rows are arranged in parallel with the horizontal strips.
  • Set, the column is set in parallel with the longitudinal strip.
  • rows and columns, horizontal strips and verticals The specific direction of the strip is not limited, as long as the row and column orthogonal settings, horizontal strips and Vertical strips can be set orthogonally.
  • each sub-pixel region of the array substrate is further disposed.
  • There is a pixel electrode 16 (the pixel electrode is a part of the array substrate 1 and is not specific in FIG. 1 show).
  • the pixel electrode 16 is electrically connected to the drain of the thin film transistor 12 in the sub-pixel region Pick up.
  • the first electrode 13 and the second electrode 14 are disposed above the pixel electrode 16 and second The electrode 14 and the pixel electrode 16 at least partially overlap in the forward projection direction.
  • the pixel electrode 16 has a slit shape (hence also referred to as a "slit electrode").
  • a second electrode 14 as the common electrode Vcom may traverse a plurality of sub-pixel regions.
  • the second electrode 14 is a part of the common electrode, and the first electrode 13 is made during the display period.
  • the two common electrodes together form a plate-like electricity Polar layer.
  • the common electrode and the pixel electrode together provide an electric field to the array.
  • a liquid crystal layer 3 between the column substrate 1 and the color filter substrate 2; and applied to each sub-pixel region according to The potential on the pixel electrode in the middle drives the liquid crystal molecules 31, thereby realizing image display.
  • the common electrode and the pixel electrode 16 are both disposed in the array substrate 1 and thus can pass The electric field generated by the edge of the slit electrode and the gap between the slit electrode layer and the plate electrode layer The electric field forms a multi-dimensional electric field.
  • the gate A gate insulating layer may be disposed between the pole and the source/drain, and the thin film transistor and the pixel electrode A passivation layer or a flat layer may be provided between.
  • the first electrode An insulating layer is disposed between the connection line 131 and the first electrode 13 and the second electrode 14 (FIG. 4) And not shown in Figure 5). An area of the insulating layer corresponding to the first electrode 13 is provided Edge hole 15 (Via Hole).
  • the first electric power is in a region corresponding to the first electrode 13
  • the pole connection line 131 is arranged to have at least two branch lines connected in parallel, the branch line and the first line
  • the poles 13 are electrically connected through the insulating layer vias 15.
  • the first electrode connection line 131 is disposed to have only one branch line, and the branch line and the second electrode 14 Electrically isolated by an insulating layer.
  • FIG. 4 with the first electrode 13 (drive electrode Tx) In the corresponding area, use the full-area conduction mode or the connection method of multiple branch lines (for example) For example, three branch lines are shown in FIG.
  • the first electrode connection line 131 is set to use only one or a few root branches
  • the wires are electrically connected to reduce the capacitance to ground of the driving electrode Tx.
  • Each of the wires is electrically connected to the driving electrode Tx through only one insulating layer via 15; of course, Alternatively, as shown in FIG. 5, each branch line is electrically connected to the driving electrode Tx through two insulations.
  • the vias 15 are via holes through even more insulating layers.
  • the insulating layer between the wires 131 can be electrically isolated and generally adopts a transparent material shape. Oxidation, for example, using silicon oxide, silicon nitride, tantalum oxide, silicon oxynitride or aluminum oxide Things are formed. Since the structure and formation process of these layers are the same as in the prior art, here No longer. At the same time, since these insulating layers are generally formed of a transparent material, Figure 4 And the observation of the plan view in FIG. 5 does not cause an obstruction, and thus is shown in the planes of FIGS. 4 and 5. The insulation layer is omitted in the intent.
  • the width of the GAP directly affects the rate of change of the touch capacitance.
  • the adjacent first electrode 13 The horizontal spacing GAP between the third electrode 24 and the third electrode 24 is a sub-pixel region at the first electrode
  • the line of 13 is arranged in a direction perpendicular to the width of the direction (ie, one sub-pixel area is in the column row) Width in the column direction).
  • the width of the GAP can be appropriately adjusted to obtain a rate of change that satisfies the requirements.
  • the maximum Limiting the coupling capacitance between the driving electrode Tx and the sensing electrode Rx improving touch sensitivity degree.
  • a driving method of a display panel based on the above display panel
  • the display panel includes an array substrate and a color filter substrate, and the array substrate is provided with a first electrode and a second electrode, wherein the color filter substrate is provided with a third electrode, a first electrode and a second electrode
  • the electrodes are disposed on the same layer, and the first electrode and the second electrode are alternately arranged in parallel and electrically connected to each other In isolation, the second electrode and the third electrode are spatially disposed correspondingly.
  • the driving method includes One electrode is time-division multiplexed into a part of the common electrode for display and a driving electrode for touch.
  • the first electrode includes a plurality of rows and Multiple sub-electrodes of multiple columns. Multiple sub-electrodes in the same column pass through the first electrode connecting line With this electrical connection, multiple sub-electrodes in different columns are electrically isolated from one another. Multiple second electrodes In this electrical connection, the plurality of third electrodes are electrically connected to each other through the third electrode connection line.
  • the driver The step of the above-mentioned time division multiplexing included in the method further includes: in the first stage, being the first electrode And the second electrode provides a common reference voltage; in the second stage, the first electrode is provided with a touch drive The motion signal provides a touch sensing signal for the third electrode.
  • the array substrate includes a plurality of data lines, and the first The pole connecting line and the data line are alternately arranged; the array substrate is further provided with a gate line, the gate line and The first electrode connection line and the data line are disposed to intersect, thereby dividing the array substrate into a plurality of sub-images a thin film transistor; respectively located on the same data line And the thin film transistors located in the sub-pixel regions of adjacent rows are diagonally disposed.
  • the step of providing a common reference voltage for the first electrode and the second electrode further includes: In one stage, data signals are output to the sources of adjacent thin film transistors through the same data line Number, and output scan signals to the gates of adjacent thin film transistors through different gate lines And the above-mentioned second stage provides a touch driving signal for the first electrode, which is a third electrode
  • the step of providing a touch sensing signal further includes: in the second stage, connecting through the first electrode Wiring outputs a drive signal to a column of first electrodes and a third electrode through a third electrode connection The pole outputs an inductive signal.
  • the length of time (first time period) of the first stage is large
  • the sum of the segments is equal to the frame period.
  • the common electrode is a plate-like structure phase
  • the common electrode is composed of the first electrode and the second electrode which are alternately disposed. a plate-like grid structure of the same configuration, and a touch between each of the second electrodes
  • the first electrode (drive electrode Tx) is divided into a plurality of sub-electrodes.
  • the driving electrode Tx and color a third electrode (sensing electrode Rx) on the side of the film substrate facing the array substrate is used for real Now touch.
  • the common electrode as a plate-shaped whole in the prior art is designed to be mutually a graphic in which a plurality of square graphics are arranged, wherein a part of the square (small square)
  • the electrode passes through the first electrode connection line located at a position of the data line in the prior art in the longitudinal direction Connected to be used as the driving electrode Tx when touched, and the driving electrode Tx is set in color
  • the sensing electrodes Rx on the film substrate jointly implement the touch function; in addition, the drive in the adjacent row Another part of the square (large square) electrode between the moving electrodes Tx is used as a public power for display.
  • Very Vcom and maintain a certain voltage value during the touch time period to ensure sensitive touch degree.
  • the common electrode Vcom and the sensing electrode Rx extend in the same direction and are in the space Corresponding settings in position to minimize drive electrode Tx and sense electrode Rx The coupling capacitance between.
  • the sensing electrodes Rx are arranged laterally and driven
  • the moving electrode Tx is arranged longitudinally, and the sensing electrode Rx is set in the width of the black matrix (BM) Larger lateral strips; use double gate (Dual Gate) structure with spacing
  • the set first electrode connection line (redundant data line) is connected in the adjacent two columns of sub-pixel regions a thin film transistor; and driving a driving signal of the driving electrode Tx through the first electrode connecting line Connect the input.
  • BM black matrix
  • the set first electrode connection line redundant data line
  • the set first electrode connection line redundant data line
  • the driving electrode Tx through the first electrode connecting line Connect the input.
  • Synchronization of the input of the driving signal used and also greatly reduces the resistance of the driving electrode Tx value. It can effectively reduce the display time under the condition of ensuring normal touch function and display function.
  • the sensor electrode Rx may cause an obstacle to the display screen.
  • the display panel of the present embodiment When manufacturing the display panel of the present embodiment, it is only required to form a common electrode. On the basis of the metal film layer, the metal film layer is divided into rectangles by using a mask in the patterning process. Cutting processing and applying redundant data lines to achieve the connection between the driving electrodes, thus ensuring The common electrode used for display and the driving electrode used for touch are electrically isolated from each other (that is, it can meet the requirements of both touch and display functions) without adding extra Process process. Therefore, the display panel of the present embodiment not only has a simplified manufacturing process, And it is easy to guarantee the yield rate.
  • a display device comprises a display according to the invention Display panel. This embodiment will be described in detail by taking an ADS mode liquid crystal display device as an example.
  • the display device can be: a liquid crystal panel, an electronic paper, a mobile phone, a tablet battery Brain, TV, monitor, laptop, digital photo frame, navigator, etc. A product or part that exhibits functionality.
  • the ADS mode liquid crystal display device generated by the edge of the slit electrode
  • the electric field and the electric field generated between the slit electrode layer and the plate electrode layer form a multi-dimensional electric field, so that the liquid Liquid crystal molecules of all orientations between the slit electrodes in the crystal layer and directly above the electrodes can produce a spin Turning, thereby improving the liquid crystal working efficiency and increasing the light transmission efficiency.
  • Advanced super-dimensional field switching technology Technology can improve the picture quality of TFT-LCD products, with high resolution, high transmittance, low Power consumption, wide viewing angle, high aperture ratio, low chromatic aberration, push mura, etc. advantage.
  • the display device further includes a gate driver 41 and a source driver.
  • the gate driver 41 is electrically connected to the plurality of gate lines 17.
  • Gate The driver 41 generates a scan signal voltage, which is transmitted through the gate line 17 to be electrically connected to the gate line 17.
  • the gate of the thin film transistor 12 to provide a scan signal to the thin film transistor 12, thereby selecting A sub-pixel region of the thin film transistor 12 connected to the gate line 17.
  • Source driver 42 Electrically connected to the data line 18.
  • the source driver 42 generates a data signal voltage through the data line 18 is transferred to the thin film transistor 12 in the two columns of sub-pixel regions electrically connected to the data line 18.
  • the source is obtained to obtain the display picture data signal.
  • the touch controller 45 is connected to the first electrode Line 131 is electrically connected.
  • the touch controller 45 generates a touch driving signal and is connected through the first electrode.
  • the wire 131 is transferred to the first electrode 13 electrically connected to the first electrode connection line 131.
  • the display device further includes a voltage converter 43 and a voltage converter 43. Arranged to be connected between the source driver 42 and the data line 18, and connected to the touch control The device 45 is between the first electrode connection line 131. Therefore, the number issued by the source driver 42 The signal is input to the source of the thin film transistor 12 via the voltage converter 43 and the data line 18; The touch controller 45 acquires the sensing signal via the voltage converter 43 and the first electrode connection line 131 No. and send drive signal.
  • the touch controller 45 in this embodiment integrates touch simultaneously. Sensing and touch-driven features. However, this embodiment does not limit the touch controller 45. Must be integrated. In order to reduce the cost of the chip, the touch controller 45 in this embodiment may also A chip with a function of receiving touch sensing and a function of transmitting a touch drive The chips are implemented in combination.
  • the touch function is performed at different time periods.
  • Display function preferably, as shown in FIG. 6, the display device further includes a transmitter 44, which emits The device 44 is electrically connected to the voltage converter 43 for transmitting a control signal to the voltage converter 43. Different signals are provided at different time periods by the control voltage converter 43.
  • the display device is used to display one frame
  • the time of the frame period of the picture is divided into two time periods.
  • the first time period is obvious The time period is shown, and the second time period is the touch time period.
  • the first time period is greater than or equal to the first The two time period
  • the sum of the first time period and the second time period is equal to the frame period.
  • Voltage converter 43 providing a touch signal to the first electrode 13 during the touch time period, and displaying the time period in the display period Do not provide a common voltage signal for the first electrode 13 and the second electrode 14.
  • the voltage converter 43 can be from the display drive core during the first time period.
  • a common voltage signal of a slice (not shown in FIG. 6) is supplied to the first electrode 13 and the second electrode 14 for performing screen display; and during the second period of time, the voltage converter 43 can receive By the first electrode 13 (at this time, the first electrode 13 is the driving electrode Tx) and the third electrode 24 (this When the third electrode 24 is the sensing electrode Rx) and the reference voltage value obtained by the human body touch Different voltages and touch based on the calculated touch position coordinates of the transmitter 44 control.
  • the first electricity The pole 13 and the second electrode 14 generate electric fields as the common electrode and the pixel electrode 16, and drive the liquid
  • the crystal molecules 31 are deflected for screen display; when the human body touches on the display panel
  • the electric field formed between the first electrode 13 and the third electrode 24 changes due to This senses the occurrence of a touch during the second time period and implements touch control.
  • the first The electrode 13 and the second electrode 14 serve as a common electrode at the time of display.
  • the gate line 17 is toward the thin film crystal
  • the thin film transistors of different rows in the array substrate 1 are sequentially The line is turned on; at the same time, the voltage converter 43 receives the control signal from the transmitter 44.
  • the voltage converter 43 receives the control signal from the transmitter 44.
  • the display driver chip and from the source driver Data signal and providing data signal to the source of the thin film transistor 12 through the data line 18.
  • Pressure or gray scale signal
  • a common reference voltage is supplied to the first electrode 13 and the second electrode 14.
  • the first electrode 13 in the array substrate 1 is used as a drive when touched.
  • Moving electrode Tx As can be seen from Figure 7, the first electrode during this time period (touch phase) The DC voltage of the signal is large (7V-8V).
  • the third electrode 24 in the color filter substrate 2 is used as The sensing electrode Rx at the time of touch ("1, 2... in the waveform diagram of the third electrode signal in Fig. 7" N-1, n" represents n progressive scans of the third electrode.)
  • First electrode 13 and third electrode 24 are spatially staggered relative (no direct facing area) and form a pair of mutual inductance Capacitor plate.
  • the sensing electrode Rx is connected to the touch via the voltage converter 43 via the sensing signal line
  • the controller 45 the driving electrode Tx is connected to the driving signal line via the voltage converter 43 to Touch controller 45.
  • the voltage converter 43 receives the control signal from the transmitter 44.
  • the touch is applied to the first electrode 13 as the driving electrode by the driving signal line Driving the signal and detecting the return of the sensing signal line based on the first electrode 13 and the third electrode 24 Sensing capacitance between the two (the first electrode 13 and the third electrode 24 are respectively sensing capacitors) The voltage signal obtained by the two plates).
  • the third electrode 24 is applied with a very large Weak voltage (300mV); during the second period, the voltage on the second electrode 14 remains It is the voltage value in the first time period. With this setting, the magnitude of the change in the reference voltage is reduced. Since the touch time period is relatively short with respect to the display time period, the habit of using liquid crystal molecules to deflect sexuality, making it possible to switch from the display time period to the touch time period in one frame time The impact is less.
  • the human finger touches the first electric of different pixel areas
  • the pole or the third electrode since the human finger usually has a certain contact surface with the display panel
  • the product makes the touch continuous (that is, the human touch is generally not less than the induction accuracy).
  • the first electrode or the third electrode serves as a corner of the driving electrode or the sensing electrode, respectively. color.
  • the display device has a plurality of pixel regions arranged in a certain rule to ensure induction
  • the orthographic projections of the electrodes and the drive electrodes can be alternately spaced in a continuous manner, thus The touch area of the human body belongs to different pixel areas, and the touch effect is not affected.
  • the first time period and the second time period For the setting of the first time period and the second time period, it can be installed according to the specific display Set the application environment and determine the conditions such as response accuracy and touch accuracy. For example, with frequency For example, if the display device displays a frame period of 16.7 ms for one frame, it can be selected. Take 12.7ms as the display time period and the other 4ms as the touch time period. of course It is also possible to appropriately adjust both according to the processing capability of the IC chip for control in the display device. The length of time is not specifically limited here.
  • the display device has a good image display effect and a high touch sensitivity.

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Abstract

一种显示面板及其驱动方法和显示装置。该显示面板包括阵列基板（1）和彩膜基板（2）。所述阵列基板（1）中设置有第一电极（13）和第二电极（14）。所述彩膜基板（2）中设置有第三电极（24）。所述第一电极（13）和所述第二电极（14）设于同一层。所述第一电极（13）和所述第二电极（14）交替间隔平行设置且彼此电性隔离。所述第二电极（14）与所述第三电极（24）在空间上对应设置。该显示面板通过将原有的板状的公共电极做矩形分割处理，保证用作显示时的公共电极与用作触控时的驱动电极彼此电性隔离；另外，应用冗余数据线实现驱动电极之间的连接，使得包含有该显示面板的显示装置具有良好的图像显示效果和较高的触控灵敏度。

Description

显示面板及其驱动方法、显示装置 技术领域
本发明涉及显示领域，具体地，涉及一种显示面板及其驱动方 法和一种包括该显示面板的显示装置。
背景技术
触摸屏是目前最新的信息输入设备，它能简单、方便、自然地 实现人机交互，为人们提供一种全新的多媒体人机交互方式，由于其 具有触摸反应灵敏、支持多点触摸等优点，极大地满足了人们的视觉 和触觉的享受。
通常，触摸屏至少包括用于显示的显示屏和用于触控的触控屏。 目前，触摸屏按照组成结构可以分为：外挂式触控屏(Add on Mode  Touch Panel)、覆盖表面式触控屏(On Cell Touch Panel)以及内 嵌式触控屏(In Cell Touch Panel)，即在显示屏的内部、表面或 外部做出感应电极Rx、驱动电极Tx。尽管触控屏具有各种不同的结 构，但均包括有感应电极Rx和驱动电极Tx，并分别连接相应的感应 信号线和驱动信号线。在人体触摸触控屏的过程中，触控屏通过检测 感应电极Rx和驱动电极Tx之间的电场变化来“感知”人体的触碰， 从而实现触控功能。
作为当今液晶显示领域的佼佼者，高级超维场转换(ADvanced  Super Dimension Switch，ADSDS，简称ADS)模式的液晶显示装置 凭借其宽广的视角、更高的对比率、更高的分辨率及更明亮的颜色呈 现，逐渐被消费者所追捧。在具有触控功能的ADS模式的液晶显示装 置中，通常采用电容互感式“感知”触控，因此通常将感应电极Rx 与驱动电极Tx设置为在正投影方向上至少部分重叠的交错式。但这 种结构在实现“感知”的同时，为了保证正常的触控电容变化率，要 求感应电极Rx和驱动电极Tx之间不能有太大的正对面积，以保证二 者之间的节点电容满足触控要求。但是，目前通常采用的感应电极 Rx和驱动电极Tx的排列方式，容易导致感应电极Rx与驱动电极Tx 之间的耦合电容过大，影响触控的灵敏度。而且，感应电极Rx通常 沿黑矩阵的纵向长条(就目前的彩膜基板而言，纵向长条的宽度小于 横向长条的宽度)设置。由于黑矩阵中的较窄的纵向长条无法完全遮 挡感应电极Rx的图形，导致在正常显示情况下出现感应电极Rx对图 像显示造成阻碍，影响显示效果。
因此，如何提高触控的灵敏度，改善图像显示效果，成为目前 亟待解决的技术问题。
发明内容
本发明的目的在于提供一种显示面板及其驱动方法和一种包括 该显示面板的显示装置。该显示面板通过将驱动电极与公共电极同层 设置，并利用冗余的数据线结构使得同一列的驱动电极相互电连接， 减小了驱动电极的对地电容，提高了触控灵敏度；同时，将感应电极 设置于黑矩阵中的较宽的长条(即，黑矩阵中的横向长条)的覆盖范 围内，改善了图像显示效果。
解决本发明技术问题所采用的技术方案是一种显示面板，该显 示面板包括阵列基板和彩膜基板，其中，所述阵列基板中设置有第一 电极和第二电极，所述彩膜基板中设置有第三电极，所述第一电极和 所述第二电极设于同一层，所述第一电极和所述第二电极交替间隔平 行设置且彼此电性隔离，所述第二电极与所述第三电极在空间上对应 设置。
优选的是，所述第一电极包括排列成多行和多列的多个子电极， 处于同一列的多个所述子电极彼此电连接，处于不同列的多个所述子 电极彼此电性隔离；所述第二电极的延伸方向与所述第一电极的子电 极的行排列方向相同，多个所述第二电极彼此电连接。
优选的是，处于同一列的多个所述子电极通过第一电极连接线 彼此电连接，所述第一电极连接线的延伸方向与所述第一电极的子电 极的行排列方向垂直。
优选的是，所述第一电极连接线与所述第一电极和所述第二电 极之间设置有绝缘层，所述绝缘层在与所述第一电极对应的区域中开 设有绝缘层过孔，所述第一电极连接线设置为在与所述第一电极对应 的区域中具有至少两条并联连接的支线，所述支线与所述第一电极通 过所述绝缘层过孔电连接；所述第一电极连接线设置为在与所述第二 电极对应的区域中仅具有一条支线，所述支线与所述第二电极通过所 述绝缘层电性隔离。
优选的是，所述阵列基板包括多条数据线，所述第一电极连接 线与所述数据线交替间隔设置，且所述数据线的延伸方向与所述第一 电极连接线的延伸方向相同。
优选的是，所述第一电极连接线与所述数据线同层设置，所述 第一电极连接线与所述数据线采用相同的材料在同一构图工艺中形 成。
优选的是，所述阵列基板中还设置有栅线，所述栅线与所述第 一电极连接线和所述数据线交叉设置从而将所述阵列基板划分为多 个子像素区域，每个所述子像素区域内设置有薄膜晶体管，同一所述 数据线两侧的所述子像素区域中，相邻行的子像素区域中的薄膜晶体 管对角设置，并且该对角设置的所述薄膜晶体管的源极与同一所述数 据线电连接，其栅极与不同的所述栅线电连接。
优选的是，所述子像素区域内还设置有像素电极，每个所述像 素电极与所述子像素区域内的所述薄膜晶体管的漏极电连接；所述第 一电极和所述第二电极设置于所述像素电极的上方，且所述第二电极 与所述像素电极在正投影方向上至少部分重叠。
优选的是，所述彩膜基板还包括黑矩阵和彩膜层，所述黑矩阵 为由宽度不等的长条相互交叉形成的网格结构，所述第三电极设置于 远离所述彩膜基板的黑矩阵一侧且设置在宽度较大的所述长条上，多 个所述第三电极通过第三电极连接线彼此电连接。
优选的是，相邻的所述第一电极与所述第三电极之间的水平间 距为一个所述子像素区域在与所述第一电极的行排列方向垂直的方 向上的宽度。
一种显示装置，包括显示面板，其中，所述显示面板为上述的 显示面板。
一种显示面板的驱动方法，该显示面板包括阵列基板和彩膜基 板，其中，所述阵列基板中设置有第一电极和第二电极，所述彩膜基 板中设置有第三电极，所述第一电极和所述第二电极设于同一层，所 述第一电极和所述第二电极交替间隔平行设置且彼此电性隔离，所述 第二电极与所述第三电极在空间上对应设置，所述驱动方法包括步 骤：将所述第一电极分时复用为显示时用的部分公共电极和触控时用 的驱动电极。
优选的是，所述第一电极包括排列成多行和多列的多个子电极， 处于同一列的多个所述子电极通过第一电极连接线彼此电连接，处于 不同列的多个所述子电极彼此电性隔离；多个所述第二电极彼此电连 接，多个所述第三电极通过第三电极连接线彼此电连接，所述将所述 第一电极分时复用为显示时用的部分公共电极和触控时用的驱动电 极的步骤进一步包括：在分时复用的第一阶段，为所述第一电极和所 述第二电极提供公共参考电压；在分时复用的第二阶段，为所述第一 电极提供触控驱动信号，为所述第三电极提供触控感应信号。
优选的是，所述阵列基板包括多条数据线，所述第一电极连接 线与所述数据线交替间隔设置；所述阵列基板中还设置有栅线，所述 栅线与所述第一电极连接线和所述数据线交叉设置从而将所述阵列 基板划分为多个子像素区域，每个所述子像素区域内设置有薄膜晶体 管，同一所述数据线两侧的所述子像素区域中，相邻行的子像素区域 中的所述薄膜晶体管对角设置，所述提供公共参考电压的步骤进一步 包括：在第一阶段，通过同一所述数据线向相邻列的所述薄膜晶体管 的源极输出数据信号，通过不同的所述栅线向相邻行的所述薄膜晶体 管的栅极输出扫描信号；并且，所述提供触控感应信号的步骤进一步 包括：在第二阶段，通过所述第一电极连接线向一列所述第一电极输 出驱动信号，通过所述第三电极连接线所述第三电极输出感应信号。
优选的是，所述第一阶段的时间长度大于或等于所述第二阶段 的时间长度，所述第一阶段与所述第二阶段的时间长度之和等于帧周 期的时间长度。
本发明的有益效果是：本发明提供的显示面板，在不增加工艺 流程的基础上，通过将原有的板状的公共电极做矩形分割处理，保证 用作显示时用的公共电极与用作触控时用的驱动电极彼此电性隔离； 另外，应用冗余数据线实现驱动电极之间的连接，因此能够同时满足 触控功能和显示功能的要求，使得包含有该显示面板的显示装置具有 良好的图像显示效果，以及较高的触控灵敏度。
附图说明
附图是用来提供对本发明的进一步理解，并且构成说明书的一 部分，与下面的具体实施方式一起用于解释本发明，但并不构成对本 发明的限制。在附图中：
图1为根据本发明实施例的显示面板的剖视图；
图2为将图1中的驱动电极、感应电极与公共电极进行正投影 而得到的各个电极的相对位置示意图；
图3为图2中的区域A的局部放大的示意图；
图4为根据本发明实施例的驱动电极的连接示意图；
图5为根据本发明实施例的像素分布的平面示意图；
图6为根据本发明实施例的显示装置的结构示意图；
图7为根据本发明实施例的时序信号波形图。
附图标记：
1-阵列基板；11-第一基板；12-薄膜晶体管；13-第一电极；131- 第一电极连接线；14-第二电极；15-绝缘层过孔；16-像素电极；17- 栅线；18-数据线；2-彩膜基板；21-第二基板；22-黑矩阵；23-彩膜 层；24-第三电极；241-第三电极连接线；3-液晶层；31-液晶分子； 41-栅极驱动器；42-源极驱动器；43-电压转换器；44-发射器；45- 触控控制器。
具体实施方式
以下结合附图对本发明的具体实施方式进行详细说明。应当理 解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不 用于限制本发明。
本发明的一个方面提供了一种显示面板，该显示面板包括阵列 基板和彩膜基板，其中，所述阵列基板中设置有第一电极和第二电极， 所述彩膜基板中设置有第三电极，所述第一电极和所述第二电极设于 同一层，所述第一电极和所述第二电极交替间隔设置且彼此电性隔 离，所述第二电极与所述第三电极在空间上对应设置。
本发明的另一个方面提供了一种显示装置，包括显示面板，其 中，所述显示面板采用上述的显示面板。
本发明的又一个方面提供了一种显示面板的驱动方法，该显示 面板包括阵列基板和彩膜基板，其中，所述阵列基板中设置有第一电 极和第二电极，所述彩膜基板中设置有第三电极，所述第一电极和所 述第二电极设于同一层，所述第一电极和所述第二电极交替间隔平行 设置且彼此电性隔离，所述第二电极与所述第三电极在空间上对应设 置，所述驱动方法包括将所述第一电极分时复用为显示时用的部分公 共电极和触控时用的驱动电极。
在本发明的一个实施例中，一种显示面板具有内嵌式触控屏， 可用于ADS模式的液晶显示装置。
如图1和图2所示，该显示面板包括阵列基板1和彩膜基板2。 其中，阵列基板1包括第一基板11以及设置于第一基板11上方的第 一电极13和第二电极14。彩膜基板2包括第二基板21以及设置于 第二基板21上方的第三电极24。第一电极13和第二电极14设于同 一层。第一电极13和第二电极14交替间隔平行设置且彼此电性隔离。 第二电极14与第三电极24在空间上对应设置。这里的“在空间上对 应设置”是指包含于阵列基板1中的第二电极14与包含于彩膜基板 2中的第三电极24彼此相对地设置。在本实施例中，第一电极13可 以分时复用，具体地，第一电极13可以用作显示时为阵列基板提供 公共电压的部分公共电极Vcom，以及触控时的驱动电极Tx。第二电 极14可以用作显示时为阵列基板提供公共电压的部分公共电极 Vcom。第三电极24可以用作触控时的感应电极Rx。
如图2所示，第一电极13包括排列成多行和多列的多个子电极。 处于同一列的多个子电极彼此电连接，处于不同列的多个子电极彼此 电性隔离。各第二电极14的延伸方向与第一电极13的子电极的行排 列方向相同。多个第二电极14彼此电连接。在本实施例中，第一电 极13的子电极的行排列方向即指子电极具有连续分布所沿的方向。 在图2中，第一电极13的子电极的行排列方向即指子电极沿着在相 邻的第二电极14之间形成的间隙区排列的方向。具体地，如图2所 示，处于同一列的多个子电极通过第一电极连接线131彼此电连接， 第一电极连接线131的延伸方向与第一电极13的子电极的行排列方 向垂直(图2还示出了第一电极连接线131两端的部分在显示区边沿 处的布线方向，该方向平行于子电极的行排列方向)。
在本实施例中，如图1所示，彩膜基板2还包括黑矩阵22和彩 膜层23。黑矩阵22为由宽度不等的长条(包括纵向长条和横向长条) 交叉形成的网格结构，横向长条的宽度大于纵向长条的宽度。第三电 极24设置于黑矩阵22的横向长条上的远离彩膜基板的一侧上。多个 第三电极24彼此电连接。如图2和图5所示，第三电极24通过第三 电极连接线241(图2还示出了第三电极连接线241两端的部分在显 示区边沿处的布线方向)彼此电连接。由于此时第三电极24设置在 黑矩阵22中的较宽的横向长条上，因此黑矩阵22能使得第三电极 24完全落在其正投影方向内，即，黑矩阵22能完全遮挡感应电极Rx 的图形。因此，能减少甚至消除因感应电极遮挡到正常显示区域而可 能造成的对显示画面的阻碍的不良情况。
另外，在本实施例的显示面板中，如图1所示，彩膜基板2和 阵列基板1之间设置有液晶层3，液晶层3包括多个液晶分子31。
如图5所示，阵列基板1包括多条数据线18，第一电极连接线 131与数据线18交替间隔设置、且数据线18的延伸方向与第一电极 连接线131的延伸方向相同。为了简化工艺，在阵列基板的制备过程 中，第一电极连接线131与数据线18同层设置，第一电极连接线131 与数据线18采用相同的材料、在同一构图工艺中形成。例如，第一 电极连接线131和数据线18可以均采用钼、铝等金属形成。
如图5所示，阵列基板1中还设置有栅线17，栅线17与第一电 极连接线131和数据线18交叉设置，从而将阵列基板1划分为多个 子像素区域。每个子像素区域内设置有薄膜晶体管12(薄膜晶体管 为阵列基板1的一部分，在图1中未具体示出)。分别位于同一数据 线18两侧并且位于相邻行的子像素区域中的薄膜晶体管12对角设置 (例如，一条数据线18的左侧的子像素区域中的薄膜晶体管12均设 置在其所在的子像素区域的右下角，而同一条数据线18的右侧的子 像素区域中的薄膜晶体管12均设置在其所在的子像素区域的左上 角)，且该对角设置的薄膜晶体管12的源极与同一数据线18电连接。 同时，为了实现逐行扫描显示，分别位于同一数据线18两侧并且位 于相邻行的子像素区域中的薄膜晶体管12(即，该对角设置的薄膜 晶体管12)的栅极与不同的栅线17电连接。
也即，在本实施例中，阵列基板为双栅型(Dual Gate)结构。 与现有技术中采用的单栅型结构中处于不同列的子像素区域中的薄 膜晶体管的源极均需分别各连接一根数据线相比，本实施例的双栅型 结构中只需在相邻的两列子像素区域之间设置一根数据线，并将该数 据线分别与位于其两侧的子像素区域中的薄膜晶体管的源极电连接 即可。因此可以将未连接薄膜晶体管的数据线作为电极连接线(即本 实施例中的第一电极连接线131，可视为冗余的数据线结构)使用。 而且，由于电极连接线与数据线同层设置，并且电极连接线与数据线 可以采用相同的材料、在同一构图工艺中形成，因此不用额外增加工 艺步骤即可制备完成该结构的阵列基板。
同时，这里应该理解的是，本实施例中所述的行和列相互正交 设置，横向长条和纵向长条相互正交设置，并且行与横向长条平行设 置，列与纵向长条平行设置。在实际应用中，行和列、横向长条和纵 向长条的具体方向不做限定，只要保证行和列正交设置、横向长条和 纵向长条正交设置即可。
在本实施例中，参考图5，阵列基板的每个子像素区域内还设置 有像素电极16(像素电极为阵列基板1的一部分，在图1中未具体 示出)。像素电极16与该子像素区域内的薄膜晶体管12的漏极电连 接。第一电极13和第二电极14设置于像素电极16的上方，且第二 电极14与像素电极16在正投影方向上至少部分重叠。在本实施例中， 像素电极16为狭缝状(因此也被称为“狭缝电极”)。在本实施例 中，作为公共电极Vcom的一条第二电极14可以穿越多个子像素区域。 而且，第二电极14为一部分公共电极，第一电极13在显示时间段作 为另一部分公共电极，该两部分公共电极共同形成一个接近板状的电 极层。在本实施例中，公共电极与像素电极一起将电场提供给夹在阵 列基板1与彩膜基板2之间的液晶层3；并根据施加到各子像素区域 中的像素电极上的电位来驱动液晶分子31，从而实现图像显示。由 于公共电极与像素电极16均设置在阵列基板1中，因此，可以通过 狭缝电极边缘所产生的电场以及狭缝电极层与板状电极层间产生的 电场形成多维电场。
容易理解的是，在薄膜晶体管中由于含有作为控制端的栅极以 及作为输入/输出端的源/漏极，因此，为保证各端口的正常工作，栅 极与源/漏极之间可以设置有栅绝缘层，并且薄膜晶体管与像素电极 之间可以设置有钝化层或平坦层。相应地，在本实施例中，第一电极 连接线131与第一电极13和第二电极14之间设置有绝缘层(图4 和图5中未示出)。绝缘层的与第一电极13对应的区域中开设有绝 缘层过孔15(Via Hole)。在与第一电极13对应的区域中将第一电 极连接线131设置为具有至少两条并联连接的支线，该支线与第一电 极13通过绝缘层过孔15电连接。在与第二电极14对应的区域中将 第一电极连接线131设置为仅具有一条支线，该支线与第二电极14 通过绝缘层电性隔离。如图4所示，在与第一电极13(驱动电极Tx) 对应的区域中，使用全区域的导通方式或者多根支线的连接方式(例 如，在图4中示出为3根支线)来设置第一电极连接线131，使得驱 动电极Tx内部本身的阻值降低；而在与第二电极14(公共电极Vcom) 对应的区域中，第一电极连接线131被设置为仅利用一根或很少根支 线进行电连接，以减小驱动电极Tx的对地电容。另外，在图4中， 每一支线与驱动电极Tx电连接时仅通过一个绝缘层过孔15；当然， 也可以如图5所示，每一支线与驱动电极Tx电连接时通过两个绝缘 层过孔15，甚至通过更多的绝缘层过孔。
这里应该理解的是，第一电极13和第二电极14与第一电极连 接线131之间的绝缘层能起到电隔离的作用，且一般采用透明材料形 成，例如采用硅氧化物、硅氮化物、铪氧化物、硅氮氧化物或铝氧化 物等形成。由于这些层的结构与形成工艺与现有技术相同，因此这里 不再赘述。同时，由于这些绝缘层一般采用透明材料形成，对图4 和图5中的平面图的观察不会造成阻碍，因此在图4和图5的平面示 意图中略去绝缘层。
如图3所示，在图2中的区域A的局部放大示意图中，第一电 极13(驱动电极Tx)与第三电极24(感应电极Rx)之间的水平间距 GAP的宽度直接影响触控电容变化率。优选的是，相邻的第一电极13 与第三电极24之间的水平间距GAP为一个子像素区域在与第一电极 13的行排列方向垂直的方向上的宽度(即，一个子像素区域在列排 列方向上的宽度)。在实际应用中，在保证触控电容变化率的同时， 可以适当地调整GAP的宽度，以便得到满足要求的变化率。同时，由 于驱动电极Tx与感应电极Rx之间并不具有正对的面积，因此能最大 限度降低驱动电极Tx与感应电极Rx之间的耦合电容，提高触控灵敏 度。
根据本发明实施例的显示面板的驱动方法，基于上述显示面板 的结构，即该显示面板包括阵列基板和彩膜基板，阵列基板中设置有 第一电极和第二电极，彩膜基板中设置有第三电极，第一电极和第二 电极设于同一层，第一电极和第二电极交替间隔平行设置且彼此电性 隔离，第二电极与第三电极在空间上对应设置。该驱动方法包括将第 一电极分时复用为显示时用的部分公共电极和触控时用的驱动电极。
同样，基于上述显示面板的结构，第一电极包括排列成多行和 多列的多个子电极。处于同一列的多个子电极通过第一电极连接线彼 此电连接，处于不同列的多个子电极彼此电性隔离。多个第二电极彼 此电连接，多个第三电极通过第三电极连接线彼此电连接。该驱动方 法包括的上述分时复用的步骤进一步包括：在第一阶段，为第一电极 和第二电极提供公共参考电压；在第二阶段，为第一电极提供触控驱 动信号，为第三电极提供触控感应信号。
基于上述显示面板的结构，阵列基板包括多条数据线，第一电 极连接线与数据线交替间隔设置；阵列基板中还设置有栅线，栅线与 第一电极连接线和数据线交叉设置，从而将阵列基板划分为多个子像 素区域；子像素区域内设置有薄膜晶体管；分别位于同一数据线两侧 并位于相邻行的子像素区域中的薄膜晶体管对角设置。上述在第一阶 段为第一电极和第二电极提供公共参考电压的步骤进一步包括：在第 一阶段，通过同一数据线向相邻列的薄膜晶体管的源极输出数据信 号，并且通过不同的栅线向相邻行的薄膜晶体管的栅极输出扫描信 号；以及上述在第二阶段为第一电极提供触控驱动信号，为第三电极 提供触控感应信号的步骤进一步包括：在第二阶段，通过第一电极连 接线向一列第一电极输出驱动信号，并且通过第三电极连接线第三电 极输出感应信号。
在上述的驱动方法中，第一阶段的时间长度(第一时间段)大 于等于第二阶段的时间长度(第二时间段)，第一时间段与第二时间 段之和等于帧周期。
与现有技术中ADS模式液晶显示装置中公共电极为板状结构相 比，在本实施例中，公共电极为由交替设置的第一电极和第二电极共 同构成的类似板状的栅网结构，并且各个第二电极之间的用于触控的 第一电极(驱动电极Tx)被分割成多个子电极。该驱动电极Tx与彩 膜基板的面向阵列基板的一侧上的第三电极(感应电极Rx)用于实 现触控。即，将现有技术中作为板状整体的公共电极设计为由相互间 隔开的多个方块图形排列而成的图形，其中，一部分方块(小方块) 电极通过纵向的位于现有技术中的数据线位置处的第一电极连接线 进行连接，以用作触控时的驱动电极Tx，该驱动电极Tx与设置于彩 膜基板上的感应电极Rx共同实现触控功能；另外，处于相邻行的驱 动电极Tx之间的另一部分方块(大方块)电极用作显示时的公共电 极Vcom，并在触控时间段内维持一定的电压值，以保证触控的灵敏 度。其中，公共电极Vcom与感应电极Rx的延伸方向一致，且在空间 位置上对应设置，以便能最大限度的降低驱动电极Tx与感应电极Rx 之间的耦合电容。
简言之，在本实施例的显示面板中，感应电极Rx横向排布，驱 动电极Tx纵向排布,并将感应电极Rx设置于黑矩阵(BM)中的宽度 较大的横向长条的区域内；利用双栅型(Dual Gate)结构采用间隔 设置的第一电极连接线(冗余数据线)连接相邻两列子像素区域中的 薄膜晶体管；以及将驱动电极Tx的驱动信号通过第一电极连接线直 接输入。通过这种方式，不仅保证显示时用的公共电极信号与触控时 用的驱动信号的输入的同步性，而且也大大降低了驱动电极Tx的阻 值。在保证正常的触控功能和显示功能的条件下，可有效减少显示时 感应电极Rx可能造成的对显示画面的阻碍的不良情况。
在制造本实施例的显示面板时，只需在原用于形成公共电极的 金属膜层的基础上，在构图工艺中采用掩模板将该金属膜层做矩形分 割处理，并应用冗余数据线实现驱动电极之间的连接这样，既保证了 用作显示时用的公共电极与用作触控时用的驱动电极彼此电性隔离 (即能够同时满足触控功能和显示功能的要求)，又不需要增加额外 的工艺制程。因此，本实施例的显示面板不仅具有简化的制造工艺， 而且容易保证良品率。
在本发明的一个实施例中，一种显示装置包括根据本发明的显 示面板。本实施例以ADS模式的液晶显示装置为例进行详细说明。
其中，该显示装置可以为：液晶面板、电子纸、手机、平板电 脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显 示功能的产品或部件。
在该ADS模式的液晶显示装置中，通过狭缝电极边缘所产生的 电场以及狭缝电极层与板状电极层间产生的电场形成多维电场，使液 晶层内狭缝电极间、电极正上方所有取向的液晶分子都能够产生旋 转，从而提高了液晶工作效率并增大了透光效率。高级超维场开关技 术可以提高TFT-LCD产品的画面品质，具有高分辨率、高透过率、低 功耗、宽视角、高开口率、低色差、无挤压水波纹(push Mura)等 优点。
如图6所示，在该显示装置中还包括栅极驱动器41、源极驱动 器42和触控控制器45。栅极驱动器41与多条栅线17电连接。栅极 驱动器41产生扫描信号电压，通过栅线17传送至与栅线17电连接 的薄膜晶体管12的栅极，以向薄膜晶体管12提供扫描信号，从而选 通与该栅线17连接的薄膜晶体管12的子像素区域。源极驱动器42 与数据线18电连接。源极驱动器42产生数据信号电压，通过数据线 18传送至与该数据线18电连接的两列子像素区域中的薄膜晶体管12 的源极，以获得显示画面数据信号。触控控制器45和第一电极连接 线131电连接。触控控制器45产生触控驱动信号，通过第一电极连 接线131传送至与该第一电极连接线131电连接的第一电极13。
在本实施例中，显示装置还包括电压转换器43，电压转换器43 被布置为连接在源极驱动器42与数据线18之间，以及连接在触控控 制器45与第一电极连接线131之间。因此，源极驱动器42发出的数 据信号经由电压转换器43和数据线18输入到薄膜晶体管12的源极； 触控控制器45经由电压转换器43和第一电极连接线131获取感应信 号和发送驱动信号。
这里应该理解的是，本实施例中触控控制器45同时集成了触控 感应和触控驱动的功能。但是，本实施例并不限定触控控制器45必 须为集成式。为降低芯片成本，本实施例中的触控控制器45也可以 分别由具有接收触控感应的功能的芯片和具有发送触控驱动的功能 的芯片来组合实现。
为了便于控制第一电极13在不同的时间段分别起到触控作用和 显示作用，优选地，如图6所示，显示装置还包括发射器44，发射 器44与电压转换器43电连接，用于向电压转换器43发出控制信号， 以控制电压转换器43在不同的时间段提供不同的信号。
例如，为保证显示装置的正常显示，将显示装置用于显示一帧 画面的帧周期的时间分成两个时间段。如图7所示，第一时间段为显 示时间段，第二时间段为触控时间段。其中，第一时间段大于等于第 二时间段，第一时间段与第二时间段之和等于帧周期。电压转换器 43在触控时间段为第一电极13提供触控信号，并且在显示时间段分 别为第一电极13和第二电极14提供公共电压信号。
具体地，电压转换器43可以在第一时间段内将来自显示驱动芯 片(图6中未示出)的公共电压信号提供至第一电极13和第二电极 14，以进行画面显示；而在第二时间段内，电压转换器43可以接收 由第一电极13(此时第一电极13为驱动电极Tx)和第三电极24(此 时第三电极24为感应电极Rx)因受人体触碰而获得的与参考电压值 不同的电压，并基于发射器44计算得到的触摸位置坐标来进行触摸 控制。也就是说，在显示装置工作过程中，在第一时间段内，第一电 极13和第二电极14作为公共电极与像素电极16产生电场，驱动液 晶分子31发生偏转，以进行画面显示；当人体在显示面板上发生触 碰时，由于第一电极13与第三电极24之间形成的电场发生变化，因 此在第二时间段内感应到触碰的发生，并实现触摸控制。
在本实施例的显示装置的驱动过程中，在第一时间段内，第一 电极13和第二电极14用作显示时的公共电极。当栅线17向薄膜晶 体管12提供扫描信号时，阵列基板1中不同行的薄膜晶体管依次逐 行导通；同时，电压转换器43在接收到发射器44发出的控制信号的 情况下，接收来自显示驱动芯片的公共电压信号和来自源极驱动器的 数据信号，并通过数据线18向薄膜晶体管12的源极提供数据信号电 压(或者说灰阶信号)，通过第一电极连接线131和公共电极线分别 向第一电极13和第二电极14提供公共参考电压。从图7中可见，该 时间段(显示阶段)上的直流电压值较小(3V左右)；同时与薄膜 晶体管12的漏极连接的像素电极16得电，与第一电极13和第二电 极14(第二电极14与像素电极在正投影方向上至少部分重叠)共同 作用形成电场，作用在液晶层3上，驱动阵列基板1与彩膜基板2 之间的液晶分子31，以使得液晶分子31的偏转方向发生改变，实现 画面显示。
在第二时间段内，阵列基板1中的第一电极13用作触控时的驱 动电极Tx。从图7中可见，在该时间段(触控阶段)上，第一电极 信号的直流电压值较大(7V-8V)。彩膜基板2中的第三电极24用作 触控时的感应电极Rx(图7中的第三电极信号的波形图中的“1,2… n-1,n”代表对第三电极的n次逐行扫描)。第一电极13和第三电极 24在空间上交错相对(没有直接的正对面积)，并且形成一对互感 式的电容极板。相应地，与第一电极13电连接的第一电极连接线131 为驱动信号线，与第三电极24电连接的第三电极连接线241为感应 信号线。感应电极Rx通过感应信号线经由电压转换器43连接到触控 控制器45，驱动电极Tx通过驱动信号线经由电压转换器43连接到 触控控制器45。电压转换器43在接收到发射器44发出的控制信号 的情况下，通过驱动信号线对作为驱动电极的第一电极13加载触控 驱动信号，并检测感应信号线返回的基于第一电极13与第三电极24 之间的感应电容(此时第一电极13和第三电极24分别为感应电容的 两个极板)而得到的电压信号。在此过程中，有人体接触触控屏时， 人体电场就会作用在感应电容上，使感应电容的电容值发生变化，进 一步使得得到的电压信号的电压值发生变化，从而改变触控感应信号 线返回电压转换器43的电压信号。根据电压信号的变化，就可以确 定触点位置，实现触摸控制。
这里应该理解的是，在第一时间段中，第三电极24上施加有很 微弱的电压(300mV)；在第二时间段中，第二电极14上的电压保持 为第一时间段中的电压值。如此设置，减小了基准电压的变化幅度。 由于触控时间段相对显示时间段较短，因此利用液晶分子偏转的惯 性，使得在一帧画面时间内因从显示时间段到触控时间段的切换对显 示造成的影响较小。
在本实施例所提供的显示装置中，可以通过发射器44和电压转 换器43共同作用以实现上述显示和触控过程。
这里应该理解的是，当人体手指触摸到不同像素区域的第一电 极或第三电极时，由于通常人体手指与显示面板具有一定的接触面 积，使得触摸具有连续性(即一般是不小于感应精度的人体触碰)。 如前所述，第一电极或第三电极分别充当驱动电极或感应电极的角 色。由于显示装置具有的多个按一定规则排列的像素区域保证了感应 电极和驱动电极的正投影能够以连续的方式交替间隔设置，因此，即 使人体触摸面积隶属于不同的像素区域，也不会影响触控的效果。
对于第一时间段与第二时间段的设置，可以根据具体的显示装 置应用环境以及对响应精度、触控精度等条件来确定。例如，以频率 为60Hz为例，显示装置显示一帧的帧周期时间为16.7ms，则可以选 取其中12.7ms作为显示时间段，其他的4ms作为触控时间段。当然 也可以根据显示装置中控制用的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。
该显示装置具有良好的图像显示效果，以及较高的触控灵敏度。
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而 采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的 普通技术人员而言，在不脱离本发明的精神和实质的情况下，可以做 出各种变型和改进，这些变型和改进也视为本发明的保护范围。

Claims (15)

  1. 一种显示面板，该显示面板包括阵列基板和彩膜基板，其特 征在于，所述阵列基板中设置有第一电极和第二电极，所述彩膜基板 中设置有第三电极，所述第一电极和所述第二电极设于同一层，所述 第一电极和所述第二电极交替间隔平行设置且彼此电性隔离，所述第 二电极与所述第三电极在空间上对应设置。
  2. 根据权利要求1所述的显示面板，其特征在于，所述第一电 极包括排列成多行和多列的多个子电极，处于同一列的多个所述子电 极彼此电连接，处于不同列的多个所述子电极彼此电性隔离；所述第 二电极的延伸方向与所述第一电极的子电极的行排列方向相同，多个 所述第二电极彼此电连接。
  3. 根据权利要求2所述的显示面板，其特征在于，处于同一列 的多个所述子电极通过第一电极连接线彼此电连接，所述第一电极连 接线的延伸方向与所述第一电极的子电极的行排列方向垂直。
  4. 根据权利要求3所述的显示面板，其特征在于，所述第一电 极连接线与所述第一电极和所述第二电极之间设置有绝缘层，所述绝 缘层在与所述第一电极对应的区域中开设有绝缘层过孔，所述第一电 极连接线设置为在与所述第一电极对应的区域中具有至少两条并联 连接的支线，所述支线与所述第一电极通过所述绝缘层过孔电连接； 所述第一电极连接线设置为在与所述第二电极对应的区域中仅具有 一条支线，所述支线与所述第二电极通过所述绝缘层电性隔离。
  5. 根据权利要求4所述的显示面板，其特征在于，所述阵列基 板包括多条数据线，所述第一电极连接线与所述数据线交替间隔设 置，且所述数据线的延伸方向与所述第一电极连接线的延伸方向相 同。
  6. 根据权利要求5所述的显示面板，其特征在于，所述第一电 极连接线与所述数据线同层设置，所述第一电极连接线与所述数据线 采用相同的材料在同一构图工艺中形成。
  7. 根据权利要求6所述的显示面板，其特征在于，所述阵列基 板中还设置有栅线，所述栅线与所述第一电极连接线和所述数据线交 叉设置从而将所述阵列基板划分为多个子像素区域，每个所述子像素 区域内设置有薄膜晶体管，分别位于同一所述数据线两侧并位于相邻 行的子像素区域中的所述薄膜晶体管对角设置，并且该对角设置的所 述薄膜晶体管的源极与同一所述数据线电连接，其栅极与不同的所述 栅线电连接。
  8. 根据权利要求7所述的显示面板，其特征在于，每个所述子 像素区域内还设置有像素电极，所述像素电极与所述子像素区域内的 所述薄膜晶体管的漏极电连接；所述第一电极和所述第二电极设置于 所述像素电极的上方，且所述第二电极与所述像素电极在正投影方向 上至少部分重叠。
  9. 根据权利要求8所述的显示面板，其特征在于，所述彩膜基 板还包括黑矩阵和彩膜层，所述黑矩阵为由宽度不等的长条相互交叉 形成的网格结构，所述第三电极设置于远离所述彩膜基板的黑矩阵一 侧且设置在宽度较大的所述长条上，多个所述第三电极通过第三电极 连接线彼此电连接。
  10. 根据权利要求9所述的显示面板，其特征在于，相邻的所 述第一电极与所述第三电极之间的水平间距为一个所述子像素区域 在与所述第一电极的行排列方向垂直的方向上的宽度。
  11. 一种显示装置，包括显示面板，其特征在于，所述显示面 板为权利要求1-10中任一项所述的显示面板。
  12. 一种显示面板的驱动方法，该显示面板包括阵列基板和彩 膜基板，其特征在于，所述阵列基板中设置有第一电极和第二电极， 所述彩膜基板中设置有第三电极，所述第一电极和所述第二电极设于 同一层，所述第一电极和所述第二电极交替间隔平行设置且彼此电性 隔离，所述第二电极与所述第三电极在空间上对应设置，所述驱动方 法包括步骤：将所述第一电极分时复用为显示时用的部分公共电极和 触控时用的驱动电极。
  13. 根据权利要求12所述的驱动方法，其特征在于，所述第一 电极包括排列成多行和多列的多个子电极，处于同一列的多个所述子 电极通过第一电极连接线彼此电连接，处于不同列的多个所述子电极 彼此电性隔离；多个所述第二电极彼此电连接，多个所述第三电极通 过第三电极连接线彼此电连接，所述将所述第一电极分时复用为显示 时用的部分公共电极和触控时用的驱动电极的步骤包括：在第一阶 段，为所述第一电极和所述第二电极提供公共参考电压；在第二阶段， 为所述第一电极提供触控驱动信号，并且为所述第三电极提供触控感 应信号。
  14. 根据权利要求13所述的驱动方法，其特征在于，所述阵列 基板包括多条数据线，所述第一电极连接线与所述数据线交替间隔设 置；所述阵列基板中还设置有栅线，所述栅线与所述第一电极连接线 和所述数据线交叉设置从而将所述阵列基板划分为多个子像素区域， 每个所述子像素区域内设置有薄膜晶体管，分别位于同一所述数据线 两侧并位于相邻行的子像素区域中的所述薄膜晶体管对角设置，所述 提供公共参考电压的步骤进一步包括：在第一阶段，通过同一所述数 据线向相邻列的所述薄膜晶体管的源极输出数据信号，通过不同的所 述栅线向相邻行的所述薄膜晶体管的栅极输出扫描信号；并且，所述 提供触控感应信号的步骤进一步包括：在第二阶段，通过所述第一电 极连接线向一列所述第一电极输出驱动信号，通过所述第三电极连接 线所述第三电极输出感应信号。
  15. 根据权利要求14所述的驱动方法，其特征在于，所述第一 阶段的时间长度大于或等于所述第二阶段的时间长度，所述第一阶段 与所述第二阶段的时间长度之和等于帧周期的时间长度。
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