CN105759483A - Liquid crystal display panel, liquid crystal displayer and driving method of liquid crystal displayer - Google Patents
Liquid crystal display panel, liquid crystal displayer and driving method of liquid crystal displayer Download PDFInfo
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- CN105759483A CN105759483A CN201610319975.XA CN201610319975A CN105759483A CN 105759483 A CN105759483 A CN 105759483A CN 201610319975 A CN201610319975 A CN 201610319975A CN 105759483 A CN105759483 A CN 105759483A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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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
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- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The embodiment of the invention provides a liquid crystal display panel, a liquid crystal displayer and a driving method of the liquid crystal displayer, and relates to the technical field of display. Pressure detection precision can be improved, and cost can be lowered. The liquid crystal display panel comprises an array substrate and a cassette substrate. The array substrate comprises a plurality of disconnected common electrodes and first wires electrically connected with the common electrodes. The cassette substrate comprises opposed electrodes in one-to-one correspondence with the common electrodes and second wires electrically connected with the opposed electrodes. The common electrodes are used for time sharing so that display, touch control and pressure detection of the liquid crystal display panel can be achieved. The liquid crystal display panel is used for the liquid crystal displayer.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of display panels, Liquid Crystal Display And Method For Driving.
Background technology
Pressure sensitive technology refers to the technology that external force can be implemented detection, and this technology is just used in the fields such as industry control, medical treatment before for a long time.Under the drive of Apple, many manufacturers are seeking suitable scheme and are realizing realizing pressure sensitive in display field especially mobile phone or flat board field, and this can make client obtain better man-machine interaction experience.But at present, it is more at LCD (LiquidCrystalDisplay, liquid crystal display) backlight portion or mobile phone midframe part increase extra mechanism realize, this design, change is made in the mechanism's design needing mobile phone, and owing to build-up tolerance is relatively big, the pressure detecting accuracy of this design has been also affected by restriction.
Summary of the invention
Embodiments of the invention provide a kind of display panels, Liquid Crystal Display And Method For Driving, can improve pressure detecting precision, reduce cost.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
First aspect, it is provided that a kind of display panels, including array base palte and to box substrate；Public electrode that described array base palte includes multiple disconnection and the first cabling electrically connected with described public electrode；Described box substrate is included and described public electrode opposite electrode one to one and the second cabling of electrically connecting with described opposite electrode；Wherein, described public electrode is for time sharing shared, so that described display panels realizes display, touch-control and pressure detecting.
Preferably, described public electrode includes the first sub-public electrode and the second sub-public electrode that disconnect, and described first sub-public electrode wraps up described second sub-public electrode；Described first cabling electrically connects with described first sub-public electrode and described second sub-public electrode respectively.
It is further preferred that described opposite electrode includes the first sub-opposite electrode and the second sub-opposite electrode that disconnect, described first sub-opposite electrode wraps up described second sub-opposite electrode；Wherein, described first sub-opposite electrode is corresponding with described first sub-public electrode, and described second sub-opposite electrode is corresponding with described second sub-public electrode；Described second cabling electrically connects with described first sub-opposite electrode and described second sub-opposite electrode respectively.
Preferably, described in arbitrary neighborhood between opposite electrode also stacking be provided with metal electrode and semiconductor layer；Adjacent described opposite electrode and described semiconductor layer overlap joint.
Preferably, described array base palte also includes thin film transistor (TFT), grid line and data wire；The grid of described grid line and described thin film transistor (TFT) is arranged with layer, and source electrode and the drain electrode of described data wire and described thin film transistor (TFT) are arranged with layer；Wherein, described first cabling parallel with described grid line and with layer arrange, or parallel with described data wire and with layer arrange.
Preferably, described box substrate is also included black matrix；Described opposite electrode adopts network, and is positioned at described black matrix near described array base palte side corresponding with described black matrix；Wherein, the material of described opposite electrode is metal material.
Preferably, described public electrode be shaped as rectangle.
Second aspect, it is provided that a kind of liquid crystal display, including the display panels described in first aspect, also includes the IC being connected with the first cabling and the 2nd IC being connected with the second cabling.
The third aspect, it is provided that the driving method of a kind of above-mentioned liquid crystal display, including:
In the first stage, an IC walks alignment public electrode input public voltage signal by first；2nd IC walks alignment opposite electrode by second and inputs the first fixed voltage signal, or to control described opposite electrode be unsettled or ground connection；In second stage, a described IC walks public electrode input touching signals described in alignment by first；Described 2nd IC walks described in alignment opposite electrode by described second and synchronizes to input described touching signals, or to control described opposite electrode be unsettled；In the phase III, a described IC walks public electrode input pressure detection signal described in alignment by first；Described 2nd IC walks alignment opposite electrode by described second and inputs the second fixed voltage signal, or controls described opposite electrode ground connection.
Preferably, the the first sub-public electrode and the second sub-public electrode that disconnect is included at described public electrode, when described opposite electrode includes the first sub-opposite electrode and the second sub-opposite electrode that disconnect, the concrete driving method of described second stage and described phase III is:
In described second stage, a described IC inputs described touching signals by described first cabling electrically connected with described second sub-public electrode；Described 2nd IC described second is walked line locking by what electrically connect with described second sub-opposite electrode and inputs described touching signals, or to control described opposite electrode be unsettled；In the described phase III, a described IC inputs described pressure detecting signal by described first cabling electrically connected with described first sub-public electrode；Described 2nd IC inputs described second fixed voltage signal by described second cabling electrically connected with described first sub-opposite electrode, or controls described opposite electrode ground connection.
Wherein, described second stage and described phase III are same stage.
Preferably, when described in arbitrary neighborhood, between opposite electrode, also stacking is provided with metal electrode and semiconductor layer, described method also includes:
In described second stage, control that described metal electrode is unsettled or ground connection；In the described phase III, input start signal to described metal electrode, so that the conducting of adjacent described opposite electrode.
The embodiment of the present invention provides a kind of display panels, Liquid Crystal Display And Method For Driving, by time sharing shared public electrode, touch controllable function can be realized based on from capacitance type, and owing to box substrate is additionally provided with opposite electrode, therefore the capacitance variations between public electrode and opposite electrode can be made to realize pressure detecting function based on pressing back box thickness change.On the one hand, owing to the mode adopting public electrode time sharing shared can realize pressure detecting, therefore, needing to increase extra mechanism and cause that pressure detecting accuracy is restricted in hinge structure, the present invention can improve pressure detecting accuracy, and can save cost；On the other hand, owing to opposite electrode disconnects mutually, therefore can ensure that the self-induction electric capacity of the only touch control electrode at finger contact position place changes, without causing the change (effect of cabling is negligible) of the self-induction electric capacity of other position touch control electrode, the mutual crosstalk caused when touch-control between touch control electrode can be avoided, improve touch control detection precision.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The schematic top plan view one of a kind of display panels that Fig. 1 provides for the embodiment of the present invention；
Fig. 2 be in Fig. 1 A-A to cross-sectional schematic；
The schematic top plan view two of a kind of display panels that Fig. 3 provides for the embodiment of the present invention；
Fig. 4 be in Fig. 3 B-B to cross-sectional schematic；
The schematic top plan view one of array base palte in a kind of display panels that Fig. 5 provides for the embodiment of the present invention；
The schematic top plan view three of a kind of display panels that Fig. 6 provides for the embodiment of the present invention；
The structural representation of a kind of public electrode that Fig. 7 provides for the embodiment of the present invention；
The schematic top plan view four of a kind of display panels that Fig. 8 provides for the embodiment of the present invention；
The structural representation of a kind of opposite electrode that Fig. 9 provides for the embodiment of the present invention；
The schematic top plan view five of a kind of display panels that Figure 10 provides for the embodiment of the present invention；
Figure 11 be in Figure 10 C-C to cross-sectional schematic；
The schematic top plan view six of a kind of display panels that Figure 12 provides for the embodiment of the present invention；
Figure 13 be in Figure 12 D-D to cross-sectional schematic；
The schematic top plan view two of array base palte in a kind of display panels that Figure 14 provides for the embodiment of the present invention；
The schematic flow sheet of a kind of liquid crystal display driving method that Figure 15 provides for the embodiment of the present invention；
Sequential chart one in a kind of liquid crystal display operation process that Figure 16 provides for the embodiment of the present invention；
Sequential chart two in a kind of liquid crystal display operation process that Figure 17 provides for the embodiment of the present invention；
Sequential chart three in a kind of liquid crystal display operation process that Figure 18 provides for the embodiment of the present invention.
Accompanying drawing labelling
01-display panels；10-array base palte；101-public electrode；The sub-public electrode of 1011-first；The sub-public electrode of 1012-second；102-the first cabling；103-thin film transistor (TFT)；104-grid line；105-data wire；106-pixel electrode；107-non-display area；108-assists cabling；20-is to box substrate；201-opposite electrode；The sub-opposite electrode of 2011-first；The sub-opposite electrode of 2012-second；202-the second cabling；203-black matrix；30-liquid crystal layer；40-metal electrode；50-semiconductor layer；R-redness photoresistance；G-green photoresistance；B-blue light resistance；The P1-first stage；P2-second stage；The P3-phase III；Vcom-common electric voltage.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Unless otherwise defined, technical term used herein or scientific terminology should be ordinary meaning understood by one of ordinary skill in the art." first ", " second " that use in present patent application description and claims and similar word are not offered as any order, quantity or importance, and are used only to distinguish different ingredients.
The embodiment of the present invention provides a kind of display panels 01, and as Figure 1-4, this display panels includes array base palte 10, to box substrate 20 and liquid crystal layer 30 positioned there between.
Wherein, array base palte 10 includes multiple disconnection public electrode 101 and the first cabling 102 electrically connected with public electrode 101.
Certainly, as it is shown in figure 5, array base palte 10 also includes thin film transistor (TFT) 103, grid line 104 and data wire 105 and the pixel electrode 106 electrically connected with the drain electrode of thin film transistor (TFT) 103；The grid of grid line 104 and thin film transistor (TFT) 103 is arranged with layer, and source electrode and the drain electrode of data wire 105 and thin film transistor (TFT) 103 are arranged with layer.
Box substrate 20 is included and public electrode 101 opposite electrode 201 one to one and the second cabling 202 of electrically connecting with opposite electrode 201；Public electrode 101 is for time sharing shared, so that display panels 01 realizes display, touch-control and pressure detecting.
Certainly, box substrate 20 can also be included black matrix and color film.Wherein, color film may also be arranged on array base palte 10.
In the embodiment of the present invention, public electrode 101 is time sharing shared, particularly as follows: when display panels realizes display function, can pass through the first cabling 102 and input common electrode signal to public electrode 101；When display panels realizes touch controllable function, can passing through the first cabling 102 and input touching signals to public electrode 101, now public electrode 101 is as touch control electrode；When display panels realizes pressure detecting function, can passing through the first cabling 102 and detect signal to public electrode 101 input pressure, now public electrode 101 is as pressure detecting electrode.
Wherein, the principle realizing touch-control is: due to the electric field action of human body, when when going out light side of finger Fluid Contacting LCD panel 01, finger is as conductor, form the self-induction electric capacity of external capacitive, external capacitive and touch control electrode with the public electrode 101 (being now alternatively referred to as touch control electrode) on array base palte 10 between touch control electrode and finger, form coupled electric field, it will change the size of self-induction electric capacity, situation of change according to touch point position electric capacity, thus calculating the position of touch point.
The principle realizing pressure detecting is: due to public electrode 101 (being now alternatively referred to as pressure detecting electrode) and opposite electrode 201 one_to_one corresponding, according to parallel plate capacitor formula, namely C ∝ ε Sd is known, when there is relative area (S) along distance (d) direction of the two between pressure detecting electrode and opposite electrode 201, then produce therebetween electric capacity (C).On this basis, when display panels 01 is not under pressure, the electric capacity produced between pressure detecting electrode and opposite electrode 201 is fixed, when display panels 01 is under pressure, the distance between pressure detecting electrode and opposite electrode 201 is made to change owing to display panels 01 deforms upon, so that the electric capacity produced between pressure detecting electrode and opposite electrode 201 changes, force value just can be obtained through corresponding conversion.
It should be noted that first, public electrode 101 and the first cabling 102 one_to_one corresponding and electrically connect.Wherein, the two may be located at same layer and directly electrically connects, it is also possible to is positioned at different layers and is electrically connected by via.
Herein, it is preferable that public electrode 101 can multiple sub-pixels on corresponding display panels 01, can guarantee that the precision of touch control detection and pressure detecting.
Opposite electrode 201 and the second cabling 202 one_to_one corresponding and electrically connect.Wherein, the two may be located at same layer and directly electrically connects, it is also possible to is positioned at different layers and is electrically connected by via.
Second, opposite electrode 201 and public electrode 101 one_to_one corresponding, it is: for any one public electrode 101, between the opposite electrode 201 that this public electrode 101 is corresponding, there is overlapping area.
Wherein, when the material of opposite electrode 201 is transparent conductive material, as shown in Figure 1-2, it is preferable that the corresponding opposite electrode 201 of public electrode 101 is completely overlapped.When the material of opposite electrode 201 is metal material, in order to not affect display, as shown in Figure 4, it is preferable that opposite electrode 201 is arranged on the non-luminous region of the viewing area of display panels 01.
The embodiment of the present invention provides a kind of display panels 01, by time sharing shared public electrode 101, touch controllable function can be realized based on from capacitance type, and owing to box substrate 20 is additionally provided with opposite electrode 201, therefore the capacitance variations between public electrode 101 and opposite electrode 201 can be made to realize pressure detecting function based on pressing back box thickness change.On the one hand, mode owing to adopting public electrode 101 time sharing shared can realize pressure detecting, therefore, needs to increase extra mechanism and cause that pressure detecting accuracy is restricted in hinge structure, the present invention can improve pressure detecting accuracy, and can save cost；On the other hand, owing to opposite electrode 201 disconnects mutually, therefore can ensure that the self-induction electric capacity of the only touch control electrode at finger contact position place changes, without causing the change (effect of cabling is negligible) of the self-induction electric capacity of other position touch control electrode, the mutual crosstalk caused when touch-control between touch control electrode can be avoided, improve touch control detection precision.
Preferably, as shown in fig. 6-7, public electrode 101 includes the first sub-public electrode 1011 and the second sub-public electrode 1012 disconnected, and the first sub-public electrode 1011 wraps up the second sub-public electrode 1012；First cabling 102 electrically connects with the first sub-public electrode 1011 and the second sub-public electrode 1012 respectively.
Herein, when display panels 01 realizes display function, the first cabling 102 can be passed through and input common electrode signal to all sub-public electrodes；When display panels 01 realizes touch controllable function, can passing through the first cabling 102 of such as electrically connecting with the second sub-public electrode 1012 and input touching signals to the second sub-public electrode 1012, now the second sub-public electrode 1012 is as touch control electrode；When display panels 01 realizes pressure detecting function, the first cabling 102 that can pass through such as to electrically connect with the first sub-public electrode 1011 detects signal to the first sub-public electrode 1011 input pressure, and now the first sub-public electrode 1011 is as pressure detecting electrode.
The embodiment of the present invention wraps up the second sub-public electrode 1012 by public electrode 101 is set to the first sub-public electrode 1011, the second sub-public electrode 1012 can be made as touch control electrode, first sub-public electrode 1011 is as pressure detecting electrode, so, when display panels 01 realizes touch controllable function, controlled pressing pressure detecting electrode ground connection or synchronization input the touching signals identical with touch control electrode, thus the mutual crosstalk between touch control electrode can be avoided further.
It is further preferred that as Figure 8-9, opposite electrode 201 includes the first sub-opposite electrode 2011 and the second sub-opposite electrode 2012 disconnected, and the first sub-opposite electrode 2011 wraps up the second sub-opposite electrode 2012；Wherein, the first sub-opposite electrode 2011 and the first sub-public electrode 1011 are corresponding, and the second sub-opposite electrode 2012 and the second sub-public electrode 1012 are corresponding；Second cabling 202 electrically connects with the first sub-opposite electrode 2011 and the second sub-opposite electrode 2012 respectively.
The embodiment of the present invention by using one of them sub-public electrode 1012 of sub-public electrode such as second in public electrode 101 as touch control electrode, another sub-public electrode 1011 of sub-public electrode such as first is as pressure detecting electrode, opposite electrode 201 is made to include the first corresponding with the first sub-public electrode 1011 and the second sub-public electrode 1012 respectively sub-opposite electrode 2011 and the second sub-opposite electrode 2012 on this basis, the first sub-opposite electrode 2011 and the second sub-opposite electrode 2012 can be controlled, to realize touch-control and pressure detecting function simultaneously.Wherein, when realizing pressure detecting function, owing to needing to control first sub-opposite electrode 2011 ground connection corresponding with the first sub-public electrode 1011 or input fixed voltage signal to the first sub-opposite electrode 2011, be equivalent to formation screen layer between touch control electrode, thus the mutual crosstalk between touch control electrode can be avoided.Additionally, due to each first sub-public electrode 1011 is separate, be all by each self-corresponding first sub-opposite electrode 2011 between distance change and identify force value, be therefore also absent from interference between pressure detecting electrode.
Preferably, as shown in figs. 10-11, between arbitrary neighborhood opposite electrode 201, also stacking is provided with metal electrode 40 and semiconductor layer 50；Adjacent opposite electrode 201 overlaps with semiconductor layer 50.
Wherein, the material of semiconductor layer 50 can adopt non-crystalline silicon or polysilicon, on this basis, also can arrange ohmic contact layer between semiconductor layer 50 and opposite electrode 201, for improving the connectivity between opposite electrode 201 and semiconductor layer 50.
The embodiment of the present invention, by controlling metal electrode 40, can make opposite electrode 201 disconnect, to avoid the crosstalk between touch control electrode when display panels 01 realizes touch controllable function；Make when display panels 01 realizes pressure detecting function all opposite electrodes 201 electrically connect, can avoid the finger impact on producing electric capacity between pressure detecting electrode and opposite electrode 201 at an arbitrary position.
Wherein, when display panels 01 realizes display function, opposite electrode 201 disconnects or electrically connects.
Preferably, with reference to shown in Fig. 5, the first cabling 102 is parallel with data wire 105 and arranges with layer.It is of course also possible to be the first cabling 102 parallel with grid line 104 and with layer arrange.
The embodiment of the present invention is by arranging the first cabling 102 with layer with grid line 104, or arranges with layer with described data wire 105, the increase of the patterning processes number of times caused when can avoid the formation of the first cabling 102.
Preferably, as illustrated by figs. 12-13, box substrate 20 is also included black matrix 203；Opposite electrode 201 adopts network, and is positioned at black matrix 203 near array base palte 10 side corresponding with black matrix 203；Wherein, the material of opposite electrode 201 is metal material.
Further, as illustrated by figs. 12-13, box substrate 20 also including color film, color film includes red filter pattern R, green filter pattern G and blue filter pattern B.
The embodiment of the present invention, by opposite electrode 201 is set to metal material, owing to metal material resistance is less, therefore can improve detection sensitivity.
In addition, consider that the second cabling 202 being positioned on box substrate 20 needs and corresponding IC (integratedcircuit, integrated circuit) it is connected, thus need to use the press fit of circuit boards being provided with this IC on box substrate 20, to provide signal to the second cabling 202.And for array base palte 10, itself need the corresponding circuit board of pressing, to provide signal to grid line 104, data wire 105 etc., therefore, all IC can be integrated in by the embodiment of the present invention with on the circuit board of array base palte 10 pressing, based on this, as shown in figure 14, auxiliary cabling 108, auxiliary cabling 108 and the second cabling 202 one_to_one corresponding can be set at the non-display area 107 stating array base palte 10, and be electrically connected by conducting resinl.
It should be noted that, non-display area 107 is relative viewing area, and it is positioned at around viewing area, and wherein viewing area is used for carrying out image and shows, non-display area is for drawing the grid line 104 in viewing area, data wire 105 etc., to be connected to the IC on circuit board.
It is further preferred that public electrode 101 be shaped as rectangle.
Wherein, when public electrode 101 is set to the structure that the first sub-public electrode 1011 wraps up the second sub-public electrode 1012, the appearance profile of the first sub-public electrode 1011 and the second sub-public electrode 1012 can be rectangle, also the appearance profile that can be the first sub-public electrode 1011 is rectangle, and the appearance profile of the embodiment of the present invention preferably the first sub-public electrode 1011 and the second sub-public electrode 1012 is rectangle.
Public electrode 101 is set to rectangle by the embodiment of the present invention, can simplify processing technology.
The embodiment of the present invention also provides for a kind of liquid crystal display, and this liquid crystal display includes above-mentioned display panels 01, also includes the IC being connected with the first cabling 102 and the 2nd IC being connected with the second cabling 202.
Herein, IC and the two IC can be same IC, it is also possible to be different IC.
The embodiment of the present invention provides a kind of liquid crystal display, by time sharing shared public electrode 101, touch controllable function can be realized based on from capacitance type, and owing to box substrate 20 is additionally provided with opposite electrode 201, therefore the capacitance variations between public electrode 101 and opposite electrode 201 can be made to realize pressure detecting function based on pressing back box thickness change.On the one hand, mode owing to adopting public electrode 101 time sharing shared can realize pressure detecting, therefore, needs to increase extra mechanism and cause that pressure detecting accuracy is restricted in hinge structure, the present invention can improve pressure detecting accuracy, and can save cost；On the other hand, owing to opposite electrode 201 disconnects mutually, therefore can ensure that the self-induction electric capacity of the only touch control electrode at finger contact position place changes, without causing the change (effect of cabling is negligible) of the self-induction electric capacity of other position touch control electrode, the mutual crosstalk caused when touch-control between touch control electrode can be avoided, improve touch control detection precision.
The embodiment of the present invention also provides for the driving method of a kind of liquid crystal display, and as shown in figure 15, this driving method comprises the steps:
S10, as shown in figure 16, inputs common electric voltage Vcom signal by the first cabling 102 to public electrode 101 at first stage P1, an IC；2nd IC inputs the first fixed voltage signal by the second cabling 202 to opposite electrode 201, or control opposite electrode 201 is unsettled or ground connection.
Certainly, in the process, grid line 104 sequentially inputs scanning signal, data wire 105 input data signal.
It should be noted that input the first fixed voltage signal such as common electric voltage Vcom signal to opposite electrode 201, or control opposite electrode 201 is unsettled or ground connection, to ensure display not to be impacted in this stage.It is unsettled for being diagrammatically only by out control opposite electrode 201 at first stage P1, Figure 16.
Herein, opposite electrode 201 can play the effect of shielding external electrical field, to ensure the homogeneity of display.
S20, at second stage P2, an IC inputs touching signals to public electrode 101 by the first cabling 102；2nd IC synchronizes input touching signals by the second cabling 202 to opposite electrode 201, or control opposite electrode 201 is unsettled.
Wherein, when the 2nd IC synchronizes input touching signals to opposite electrode 201, opposite electrode 201 and public electrode 101 all can be described as touch control electrode.
Certainly, in the process, also can synchronize input touching signals to grid line 104 and data wire 105, so can avoid generation electric capacity between grid line 104 and data wire 105 and public electrode 101 (that is, touch control electrode), thus the precision to touch control detection can be ensured.
It should be noted that synchronize input touching signals to opposite electrode 201, or control opposite electrode 201 is unsettled, to ensure touch control detection not to be impacted in this stage.
If at first stage P1, it is unsettled for controlling opposite electrode 201, then preferably in second stage P2, it is unsettled for also controlling opposite electrode 201, so can without changing the state of opposite electrode 201.
S30, phase III P3, an IC by the first cabling 102 to public electrode 101 input pressure detect signal；2nd IC inputs the second fixed voltage such as common electric voltage Vcom by the second cabling 202 to opposite electrode 201, or controls opposite electrode 201 ground connection.
In this stage, when finger presses display panels 01, and when making display panels 01 deform upon, distance between public electrode 101 (being now alternatively referred to as pressure detecting electrode) and each self-corresponding opposite electrode 201 can change, change according to distance just can carry out corresponding from different force value, thus realize the identification to force value, and then different functions can be realized according to different pressures value.
The embodiment of the present invention provides the driving method of a kind of liquid crystal display, by time sharing shared public electrode 101, touch controllable function can be realized based on from capacitance type, and owing to box substrate 20 is additionally provided with opposite electrode 201, therefore the capacitance variations between public electrode 101 and opposite electrode 201 can be made to realize pressure detecting function based on pressing back box thickness change.On the one hand, mode owing to adopting public electrode 101 time sharing shared can realize pressure detecting, therefore, needs to increase extra mechanism and cause that pressure detecting accuracy is restricted in hinge structure, the present invention can improve pressure detecting accuracy, and can save cost；On the other hand, owing to opposite electrode 201 disconnects mutually, and input unlike signal in different phase, therefore can ensure that the self-induction electric capacity of the only touch control electrode at finger contact position place changes, without causing the change (effect of cabling is negligible) of the self-induction electric capacity of other position touch control electrode, the mutual crosstalk caused when touch-control between touch control electrode can be avoided, improve touch control detection precision.
The first sub-public electrode 1011 and the second sub-public electrode 1012 disconnected is included, when opposite electrode 201 includes the first sub-opposite electrode 2011 and the second sub-opposite electrode 2012 that disconnect at public electrode 101:
As shown in figure 17, S20 step is particularly as follows: input touching signals at second stage P2, an IC by the first cabling 102 electrically connected with the second sub-public electrode 1012；2nd IC is by the second cabling 202 Tong Bu input touching signals with the second sub-opposite electrode 2012 electrical connection, or control opposite electrode 201 is unsettled.
S30 step is particularly as follows: detect signal at phase III P3, an IC by the first cabling 102 input pressure electrically connected with the first sub-public electrode 1011；2nd IC inputs the second fixed voltage signal by the second cabling 202 electrically connected with the first sub-opposite electrode 2011, or controls opposite electrode 201 ground connection.
Wherein, second stage P2 and phase III P3 is same stage.
It should be noted that second stage P2 and the concrete manifestation form that phase III P3 is same stage are: liquid crystal display is while carrying out touch control detection, it is possible to carry out pressure detecting, both there is no dividing of sequencing.
The embodiment of the present invention by using one of them sub-public electrode 1012 of sub-public electrode such as second in public electrode 101 as touch control electrode, another sub-public electrode 1011 of sub-public electrode such as first is as pressure detecting electrode, on this basis, by controlling the signal inputted to the first sub-opposite electrode 2011 and the second sub-opposite electrode 2012, just can realize touch-control and pressure detecting function simultaneously.Wherein, when realizing pressure detecting function, owing to needing to control first sub-opposite electrode 2011 ground connection corresponding with the first sub-public electrode 1011 or input fixed voltage signal to the first sub-opposite electrode 2011, be equivalent to formation screen layer between touch control electrode, thus the mutual crosstalk between touch control electrode can be avoided.
Preferably, between arbitrary neighborhood opposite electrode 201, also stacking is provided with metal electrode 40 and semiconductor layer 50, said method also includes:
As shown in figure 18, at second stage P2, the 3rd IC controls that metal electrode 40 is unsettled or ground connection；At phase III P3, the 3rd IC inputs start signal to metal electrode 40, so that adjacent opposite electrode 201 turns on.Wherein, at first stage P1, the 3rd IC controls that metal electrode 40 is unsettled, ground connection, input start signal.
Concrete, input common electric voltage Vcom signal by the first cabling 102 to public electrode 101 at first stage P1, an IC；3rd IC controls that metal electrode 40 is unsettled or ground connection；2nd IC inputs the first fixed voltage signal by the second cabling 202 to opposite electrode 201, or control opposite electrode 201 is unsettled or ground connection.
At second stage P2, at second stage P2, an IC inputs touching signals by the first cabling 102 to public electrode 101；3rd IC controls that metal electrode 40 is unsettled or ground connection；2nd IC synchronizes input touching signals by the second cabling 202 to opposite electrode 201, or control opposite electrode 201 is unsettled.
Signal is detected by the first cabling 102 to public electrode 101 input pressure at phase III P3, an IC；3rd IC inputs start signal to metal electrode 40；2nd IC inputs the second fixed voltage such as common electric voltage Vcom signal by the second cabling 202 to opposite electrode 201, or controls opposite electrode 201 ground connection.
It should be noted that the 3rd IC can be same IC with an IC or the 2nd IC, or an IC, the 2nd IC and the three IC are same IC.
The embodiment of the present invention passes through the 3rd IC control to metal electrode 40, opposite electrode 201 can be made to disconnect when display panels 01 realizes touch controllable function, to avoid the crosstalk between touch control electrode；Make all opposite electrodes 201 electrically connect when display panels 01 realizes pressure functional detection, can avoid the finger impact on producing electric capacity between pressure detecting electrode and opposite electrode 201 at an arbitrary position.
The above; being only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; change can be readily occurred in or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (11)
1. a display panels, including array base palte and to box substrate；It is characterized in that,
Public electrode that described array base palte includes multiple disconnection and the first cabling electrically connected with described public electrode；
Described box substrate is included and described public electrode opposite electrode one to one and the second cabling of electrically connecting with described opposite electrode；
Wherein, described public electrode is for time sharing shared, so that described display panels realizes display, touch-control and pressure detecting.
2. display panels according to claim 1, it is characterised in that described public electrode includes the first sub-public electrode and the second sub-public electrode that disconnect, and described first sub-public electrode wraps up described second sub-public electrode；
Described first cabling electrically connects with described first sub-public electrode and described second sub-public electrode respectively.
3. display panels according to claim 2, it is characterised in that described opposite electrode includes the first sub-opposite electrode and the second sub-opposite electrode that disconnect, and described first sub-opposite electrode wraps up described second sub-opposite electrode；
Wherein, described first sub-opposite electrode is corresponding with described first sub-public electrode, and described second sub-opposite electrode is corresponding with described second sub-public electrode；
Described second cabling electrically connects with described first sub-opposite electrode and described second sub-opposite electrode respectively.
4. display panels according to claim 1 and 2, it is characterised in that be provided with metal electrode and semiconductor layer going back stacking described in arbitrary neighborhood between opposite electrode；
Adjacent described opposite electrode and described semiconductor layer overlap joint.
5. display panels according to claim 1, it is characterised in that described array base palte also includes thin film transistor (TFT), grid line and data wire；The grid of described grid line and described thin film transistor (TFT) is arranged with layer, and source electrode and the drain electrode of described data wire and described thin film transistor (TFT) are arranged with layer；
Wherein, described first cabling parallel with described grid line and with layer arrange, or parallel with described data wire and with layer arrange.
6. display panels according to claim 1, it is characterised in that described box substrate is also included black matrix；
Described opposite electrode adopts network, and is positioned at described black matrix near described array base palte side corresponding with described black matrix；
Wherein, the material of described opposite electrode is metal material.
7. display panels according to claim 1, it is characterised in that described public electrode be shaped as rectangle.
8. a liquid crystal display, it is characterised in that include the display panels described in any one of claim 1-7, also includes the IC being connected with the first cabling and the 2nd IC being connected with the second cabling.
9. the driving method of a liquid crystal display as claimed in claim 8, it is characterised in that including:
In the first stage, an IC walks alignment public electrode input public voltage signal by first；2nd IC walks alignment opposite electrode by second and inputs the first fixed voltage signal, or to control described opposite electrode be unsettled or ground connection；
In second stage, a described IC walks public electrode input touching signals described in alignment by first；Described 2nd IC walks described in alignment opposite electrode by described second and synchronizes to input described touching signals, or to control described opposite electrode be unsettled；
In the phase III, a described IC walks public electrode input pressure detection signal described in alignment by first；Described 2nd IC walks alignment opposite electrode by described second and inputs the second fixed voltage signal, or controls described opposite electrode ground connection.
10. driving method according to claim 9, it is characterized in that, the the first sub-public electrode and the second sub-public electrode that disconnect is included at described public electrode, when described opposite electrode includes the first sub-opposite electrode and the second sub-opposite electrode that disconnect, the concrete driving method of described second stage and described phase III is:
In described second stage, a described IC inputs described touching signals by described first cabling electrically connected with described second sub-public electrode；Described 2nd IC described second is walked line locking by what electrically connect with described second sub-opposite electrode and inputs described touching signals, or to control described opposite electrode be unsettled；
In the described phase III, a described IC inputs described pressure detecting signal by described first cabling electrically connected with described first sub-public electrode；Described 2nd IC inputs described second fixed voltage signal by described second cabling electrically connected with described first sub-opposite electrode, or controls described opposite electrode ground connection；
Wherein, described second stage and described phase III are same stage.
11. driving method according to claim 9, it is characterised in that when also stacking is provided with metal electrode and semiconductor layer between opposite electrode described in arbitrary neighborhood, described method also includes:
In described second stage, control that described metal electrode is unsettled or ground connection；
In the described phase III, input start signal to described metal electrode, so that the conducting of adjacent described opposite electrode.
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