CN104793827A - Array substrate and self-capacitance type touch display device - Google Patents
Array substrate and self-capacitance type touch display device Download PDFInfo
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- CN104793827A CN104793827A CN201510232510.6A CN201510232510A CN104793827A CN 104793827 A CN104793827 A CN 104793827A CN 201510232510 A CN201510232510 A CN 201510232510A CN 104793827 A CN104793827 A CN 104793827A
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Abstract
The invention discloses an array substrate and a self-capacitance type touch display device. The array substrate comprises a common electrode layer, a plurality of touch wires and at least one touch switching module. The common electrode layer comprises a plurality of touch electrodes used for self-capacitance type touch. The touch wires correspond to the touch electrodes in a one-to-one mode and are connected with the touch electrodes. The first transmission end of one touch switching module corresponds to one touch wire and is connected with the touch wire, the second transmission end of the touch switching module is connected with a first signal pin, and the third transmission end of the touch switching module is connected with a second signal pin. In the display state, the touch switching module controls the touch wires to be communicated with the first signal pin, and the first signal pin transmits a common electrode signal to the touch wires. In the touch detecting stage, the touch switching module controls the touch wires to be communicated with the second signal pin, and the second signal pin transmits a touch signal to the touch wires. The cost of the array substrate and the self-capacitance type touch display device is reduced, and power consumption is reduced.
Description
Technical field
The present invention relates to touch-control display technique, particularly relate to a kind of array base palte and self-capacitance touch control display apparatus.
Background technology
Liquid crystal indicator has the advantages such as resolution is high, brightness is high, visual angle is wide, is therefore widely used.Along with the fast development of liquid crystal indicator, touch control type LCD device is also tending towards high integration, mass production gradually.The cost how reducing touch control type LCD device becomes current study hotspot.
As shown in Fig. 1 (a), the schematic diagram of the array base palte of a kind of touch control type LCD device provided for prior art.As shown in the figure, this array base palte comprises common electrode layer 10, control chip IC20 and touch-control cabling 30, wherein, common electrode layer 10 is divided into multiple public electrode blocks 11 of rectangular arrangement, common electrode layer 10 is multiplexed with touch control electrode layer, touch-control cabling 30 arranges with public electrode block 11 one_to_one corresponding and is connected, and public electrode block 11 is connected to the input/output end port (I/O port) of IC20 by corresponding touch-control cabling 30.In array base palte, the touch-control stage, the I/O port of IC20 is sent touching signals and detects to the public electrode block 11 of correspondence by many touch-control cablings 30 simultaneously, the display stage, and the I/O port of IC20 sends common electrode signal to the public electrode block 11 of correspondence by many touch-control cablings 30 simultaneously.
As shown in Fig. 1 (b), it is the schematic diagram of a kind of self-capacitance touch-control display panel that prior art provides.As shown in the figure, the IC of this self-capacitance touch-control display panel comprises touch-control port RX and display port S.When normally showing, each touch control type LCD RX provide common electrode signal simultaneously, and each display port S is to pixel cell R, G, B transmitting display data signal; When touch control detection, each touch-control port RX exports touch control detection signal simultaneously.
The defect of prior art is, when public electrode is multiplexed with touch control electrode, when touch control electrode quantity is more, the quantity of IC upper touch-control port RX is also more, and add each display port S, then the I/O port number above IC is very many, IC size also can be increasing, cost up.Meanwhile, when touch control detection, each touch-control port RX exports touch control detection signal simultaneously, if each passage power consumption is P, then the overall power with the self-capacitance touch-control display panel of N number of touch-control port RX passage is then N*P, therefore when each touch control detection, power consumption is all N*P, and power consumption is excessive.
Summary of the invention
The invention provides a kind of array base palte and self-capacitance touch control display apparatus, to solve the problem of prior art.
First aspect, a kind of array base palte provided by the invention, comprising:
Common electrode layer, described common electrode layer comprises multiple touch control electrode, and described multiple touch control electrode is used for self-capacitance touch-control;
Many touch-control cablings, arrange with described multiple touch control electrode one_to_one corresponding and are connected;
At least one touch-control handover module;
First transmission ends of a described touch-control handover module is corresponding with described touch-control cabling to be arranged and connects; Second transmission ends of described touch-control handover module is connected with the first signal pins, and the 3rd transmission ends of described touch-control handover module is connected with secondary signal pin;
In the display stage, described touch-control handover module controls described touch-control cabling and is communicated with described first signal pins, and described first signal pins is to described touch-control cabling transmission common electrode signal; In the touch control detection stage, described touch-control handover module controls described touch-control cabling and is communicated with described secondary signal pin, and described secondary signal pin is to described touch-control cabling transmission touching signals.
Second aspect, a kind of self-capacitance touch control display apparatus provided by the invention, comprises array base palte as described in relation to the first aspect.
A kind of array base palte provided by the invention and self-capacitance touch control display apparatus, by arranging at least one touch-control handover module at the non-display area of array base palte, be connected with touch-control cabling, touch-control handover module is made to perform the blocked operation of display stage and touch control detection stage output signal, compared with prior art, control chip inside is not needed to carry out the switching of touch control detection stage and display stage output signal, the corresponding area reducing control chip IC on array base palte, reduces the cost of array base palte and self-capacitance touch control display apparatus.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, introduce doing one to the accompanying drawing used required in embodiment or description of the prior art simply below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic diagram of a kind of array base palte that Fig. 1 (a) provides for prior art;
The schematic diagram of a kind of self-capacitance touch-control display panel that Fig. 1 (b) provides for prior art;
The structural drawing of a kind of array base palte that Fig. 2 provides for one embodiment of the invention;
The schematic diagram of a kind of touch-control handover module that Fig. 3 (a) provides for another embodiment of the present invention;
The schematic diagram of another touch-control handover module that Fig. 3 (b) provides for another embodiment of the present invention;
The schematic diagram of a kind of array base palte that Fig. 4 (a) provides for another embodiment of the present invention;
A kind of time diagram of the array base palte that Fig. 4 (b) provides for another embodiment of the present invention;
The another kind of time diagram of the array base palte that Fig. 4 (c) provides for another embodiment of the present invention;
The schematic diagram of a kind of array base palte that Fig. 5 provides for another embodiment of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, hereinafter with reference to the accompanying drawing in the embodiment of the present invention, by embodiment, technical scheme of the present invention is described clearly and completely, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
With reference to figure 2, it is the structural drawing of a kind of array base palte that one embodiment of the invention provides.The technical scheme of the embodiment of the present invention is applicable to the port and the area that reduce control chip IC on array base palte, to reduce the cost of control chip on array base palte, and reduces the situation of control chip power consumption.
A kind of array base palte that the embodiment of the present invention provides comprises: common electrode layer, and common electrode layer comprises the touch control electrode 110 (RX of multiple arrangement in matrix
11~ RX
mN), multiple touch control electrode is used for self-capacitance touch-control, many touch-control cablings 120 and at least one touch-control handover module 130.Multiple touch-control cabling 120 arranges with many touch control electrode 110 one_to_one corresponding and is connected.When array base palte also comprising touch-control handover module 130, touch-control handover module 130 is corresponding with one of them touch control electrode 110, first transmission ends of touch-control handover module 130 is corresponding with touch-control cabling 120 to be arranged and connects, second transmission ends of same touch-control handover module 130 is connected with the first signal pins VCOM, and the 3rd transmission ends of same touch-control handover module 130 is connected with secondary signal pin TP.Array base palte is provided with multiple touch-control handover module 130, the plurality of touch-control handover module 130 arranges with multiple touch control electrode 110 one_to_one corresponding and is connected, and also with multiple first signal pins VCOM, secondary signal pin TP one_to_one corresponding.
Wherein, touch-control handover module 130 is arranged in the non-display area of array base palte, and the non-display area of array base palte is also provided with control chip IC in addition.At least one first signal pins VCOM, at least one secondary signal pin TP are integrated on IC, and IC is to the first signal pins VCOM, secondary signal pin TP signal transmission respectively.
In the present invention, also the touch control electrode 110 not connecting touch-control handover module 130 can be comprised in multiple touch control electrode 110, the touch control electrode 110 not connecting touch-control handover module 130 is directly connected with the input/output end port of IC by touch-control cabling 120, for Received signal strength under the control of IC.
Touch-control handover module 130, by switching being communicated with of touch-control cabling 120 and unlike signal pin, makes array base palte be in different mode of operations.The sequential of common electrode layer is divided into display timing generator and touch control detection sequential, therefore first signal pins VCOM is set for transmitting common electrode signal, secondary signal pin TP is for transmitting touching signals TP, so by the connection of touch-control cabling 120 from different signal pins, array base palte timesharing is in display stage mode of operation and touch control detection stage mode of operation.
In the display stage, touch-control handover module 130 controls touch-control cabling 120 and is communicated with the first signal pins VCOM, and the first signal pins VCOM transmits common electrode signal to touch-control cabling 120; In the touch control detection stage, touch-control handover module 130 controls touch-control cabling 120 and is communicated with secondary signal pin TP, and secondary signal pin TP transmits touching signals to touch-control cabling 120.Alternatively, the touch-control cabling 120 of touch-control handover module 130 is not connected if having, then corresponding touch control electrode 110 is directly connected with IC by this touch-control cabling 120, in the display stage, IC utilizes touch-control cabling 120 to transmit common electrode signal directly to touch control electrode 110 by input/output end port, in the touch control detection stage, IC utilizes touch-control cabling 120 to transmit touching signals directly to touch control electrode 110 by input/output end port.
Alternatively, pre-detection stage can also be comprised before the touch control detection stage, at pre-detection stage, touch-control handover module 130 controls touch-control cabling 120 and is communicated with the first signal pins VCOM, first signal pins VCOM transmits pre-detection signal to touch-control cabling 120, whether to detect multiple touch control electrode 110 by touch-control, if this touch control electrode 110 is by touch-control, location touch point is then needed namely to enter the touch control detection stage, if there is no touch control electrode 110 by touch-control, then do not need to locate touch point, skipping the touch control detection stage enters the display stage.So, after pre-detection stage has detected touch-control generation, the touch control detection stage has been entered; If do not detect touch-control at pre-detection stage to occur, enter the display stage.
Alternatively, pre-detection stage, the first signal pins VCOM that any one touch-control handover module 130 connects is pulse signal to the pre-detection signal that touch control electrode 110 is transmitted, the pre-detection signal that other touch-control cablings 120 not connecting touch-control handover module 130 transmit to touch control electrode 110 is also identical pulse signal, and this pulse signal is generally square-wave signal.
It should be noted that, alternatively, touch-control handover module 130 also comprises the first control end, and first control end and first of touch-control handover module 130 controls pin CKHM and is connected.Alternatively, first controls pin CKHM is integrated on control chip, and all touch-control handover modules 130 connect same first and control pin CKHM.
First controls pin CKHM is used for touch-control handover module 130 transmission of control signals, and under control of the control signal, touch-control handover module 130 switches touch control electrode 110 and is communicated with the timesharing of unlike signal pin.In the display stage, touch-control handover module 130 controls the control signal of pin CKHM transmission according to first, and control touch-control cabling 120 and be communicated with the first signal pins VCOM, touch control electrode 110 receives common electrode signal; In the touch control detection stage, touch-control handover module 130 controls the control signal of pin CKHM transmission according to first, and control touch-control cabling 120 and be communicated with secondary signal pin TP, touch control electrode 110 receives touching signals.Alternatively, before the touch control detection stage, also comprise pre-detection stage, at pre-detection stage, touch-control handover module 130 controls touch-control cabling 120 and is communicated with the first signal pins VCOM, and the first signal pins VCOM transmits pre-detection signal to touch-control cabling 120.
Under control of the control signal, the display stage, all touch control electrode 110 all can receive the identical common electrode signal of the first signal pins transmission, pre-detection stage, all touch control electrode 110 all can receive the identical pre-detection signal of the first signal pins VCOM transmission, array base palte comprises multiple touch-control handover module 130, the corresponding touch control electrode 110 of each touch-control handover module 130, second transmission ends of multiple touch-control handover module 130 can be connected to same first signal pins VCOM, to show stage and pre-detection stage, same first signal pins VCOM timesharing transmits common electrode signal and pre-detection signal by many touch-control cablings 120 to all touch control electrode 110.
A kind of array base palte that the embodiment of the present invention provides, by arranging at least one touch-control handover module at the non-display area of array base palte, or touch-control handover module is set with multiple touch-control cabling one_to_one corresponding, touch-control handover module is made to perform the blocked operation of display stage and touch control detection stage output signal, compared with prior art, control chip inside is not needed to carry out the switching of touch control detection stage and display stage output signal, the corresponding area reducing control chip IC on array base palte, reduces the cost of array base palte.Meanwhile, array base palte has also carried out pre-detection, only touch detected at pre-detection stage, just enters the touch control detection stage, saves the power consumption of array base palte.
Shown in figure 3 (a), it is the schematic diagram of a kind of touch-control handover module that another embodiment of the present invention provides.As shown in the figure, touch-control handover module 130 comprises the first switch unit 131 and the second switch unit 132; The control end and first of the first switch unit 131 controls that pin CKHM is connected, the first output terminal is connected with touch-control cabling 120, first input end is connected with the first signal pins VCOM; The control end and first of the second switch unit 132 controls that pin CKHM is connected, the first transmission ends is connected with touch-control cabling 120, the second transmission ends is connected with secondary signal pin TP.In order to reduce the area of control chip, all touch-control handover modules 130 can be set at this and connect same first control pin, receiving identical control signal.
In the display stage, the first switch unit 131, according to control signal, switches and touch-control cabling 120 is communicated with the first signal pins VCOM, transmit common electrode signal to touch control electrode 110, and wherein said touch control electrode is used for self-capacitance touch-control.Alternatively, at pre-detection stage, the first switch unit 131, according to control signal, switches and touch-control cabling 120 is communicated with the first signal pins VCOM, transmit pre-detection signal to touch control electrode 110, is converted to the touch control detection stage when having detected touch-control and having occurred.In the touch control detection stage, the second switch unit 132, according to control signal, switches and touch-control cabling 120 is communicated with secondary signal pin TP, transmit touching signals, to locate position of touch to touch control electrode 110.Known first switch unit 131 and the second switch unit 132 timesharing switch.
In Fig. 3 (a), first switch unit 131 is connected same first and controls pin CKHM with the second switch unit 132, receive identical control signal, first switch unit 131 is P-type crystal pipe, and the second switch unit 132 is N-type transistor (as Suo Shi Fig. 3 (a)).Or alternatively, the first switch unit 131 is N-type transistor, and the second switch unit 132 is P-type crystal pipe.
It should be noted that, alternatively, first switch unit 131 also can be set to P-type crystal pipe, second switch unit 132 is set to be made up of phase inverter and P-type crystal pipe, wherein, the input end of this phase inverter connects the control end that first controls pin CKHM, output terminal connects P-type crystal pipe in the second switch unit 132.Or, first switch unit 131 is set to be made up of phase inverter and N-type transistor, second switch unit 132 is N-type transistor, and wherein, the input end of this phase inverter connects the control end that first controls pin CKHM, output terminal connects N-type transistor in the first switch unit 131.At this first switch unit 131 with the second switch unit 132 can also be made up of other modes or other devices form, to realize handoff functionality, its diversification of forms, does not repeat at this.
Shown in figure 3 (b), it is the schematic diagram of another touch-control handover module that another embodiment of the present invention provides.As shown in the figure, the first the second son controlling the first son control pin CKHM1 and transmission the second control signal that pin CKHM can also comprise transmission first control signal controls pin CKHM2.When array base palte comprises multiple touch-control handover module 130, the control end of the first switch unit 131 of all touch-control handover modules 130 all controls pin CKHM1 with same first son and is connected; The control end of the second switch unit 132 of all touch-control handover modules 130 all controls pin CKHM2 with same second son and is connected.
In the display stage, first switch unit 131 controls touch-control cabling 120 according to the first control signal that the first son control pin CKHM1 provides and is communicated with the first signal pins VCOM, and the second switch unit 132 controls touch-control cabling 120 according to the second control signal that the second son control pin CKHM2 provides and secondary signal pin TP disconnects; In the touch control detection stage, first switch unit 131 controls touch-control cabling 120 according to the first control signal that the first son control pin CKHM1 provides and the first signal pins VCOM disconnects, and the second switch unit 132 controls touch-control cabling 120 according to the second control signal that the second son control pin CKHM2 provides and is communicated with the second quotation marks pin.Alternatively, at pre-detection stage, the first switch unit 131 controls touch-control cabling 120 according to the first control signal and is communicated with the first signal pins VCOM, and the second switch unit 132 controls touch-control cabling 120 according to the second control signal and disconnects with secondary signal pin TP.
Alternatively, the level arranging the first control signal and the second control signal is contrary, then, as shown in Fig. 3 (b), in touch-control handover module 130, arrange the first switch unit 131 and the second switch unit 132 is P-type crystal pipe.Or, alternatively, the first switch unit 131 is set and the second switch unit 132 is N-type transistor.
It should be noted that, alternatively, first switch unit 131 also can be set to P-type crystal pipe, second switch unit 132 is set to be made up of phase inverter and N-type transistor, wherein, the input end of this phase inverter connects the second control end that son controls pin, output terminal connects N-type transistor in the second switch unit 132.Or, first switch unit 131 is set to be made up of phase inverter and P-type crystal pipe, second switch unit 132 is N-type transistor, and wherein, the input end of this phase inverter connects the first control end that son controls pin, output terminal connects P-type crystal pipe in the first switch unit 131.At this first switch unit 131 with the second switch unit 132 can also be made up of other modes or other devices form, to realize handoff functionality, its diversification of forms, does not repeat at this.
A kind of touch-control handover module that the embodiment of the present invention provides, there is the first control end, the first switch unit and the second switch unit, first control end of optional all touch-control handover modules connects same first and controls pin, under controlling the control of pin first, the display stage, first switch unit makes touch-control cabling be communicated with the first signal pins VCOM, the touch control detection stage, and the second switch unit makes touch-control cabling and secondary signal pin TP.Compared with prior art, touch-control handover module is arranged on the non-display area of array base palte, makes to reduce the area of control chip IC on array base palte, decreases the input/output end port of IC, reduce the cost of array base palte.Present invention also adds pre-detection stage, after touch generation being detected, carrying out the touch control detection stage, reduce the power consumption of array base palte.
Shown in figure 4 (a), it is the schematic diagram of a kind of array base palte that another embodiment of the present invention provides.As shown in the figure, array base palte also comprises a plurality of data lines, and a plurality of data lines connects multiple pixel cell, and at this, R represents the data line that connects multiple red pixel cell, can be called for short red data line R; G represents the data line that connects multiple green pixel cell, can be called for short green data line G; B represents the data line that connects multiple blue pixel cells, is called for short blue data line B.Particularly, array base palte also comprises multi-strip scanning line (not shown), multi-strip scanning line and a plurality of data lines insulate to intersect and define multiple pixel cell, pixel cell can also comprise other pixel cells, as the white pixel unit replaced with W, in subsequent embodiment, be only described for red, green, blue three-color pixel unit.
As shown in Fig. 4 (a), touch-control handover module 130 comprises output terminal and the second control end, its output terminal connects n bar data line, n be more than or equal to 1 positive integer, and the pixel cell of the corresponding different colours of n bar data line, namely the color of n bar data line is different, and its second control end and second controls pin and is connected, and is communicated with successively for control n bar data line with secondary signal pin TP.Be 3 to be described with n in the present embodiment.
In the display stage, touch-control handover module 130 controls the control signal of pin CKHR, CKHG, CKHM transmission according to second, and control n bar data line is communicated with secondary signal pin TP successively, and secondary signal pin TP is to n bar data line successively transmitting display data signal.Meanwhile, touch-control handover module 130 controls the control signal of pin CKHM transmission according to first, and control touch-control cabling 120 and be communicated with the first signal pins VCOM, the first signal pins VCOM transmits common electrode signal to the touch-control cabling 120 of correspondence.
Alternatively, at pre-detection stage, touch-control handover module 130 controls the control signal of pin CKHR, CKHG, CKHM transmission according to second, and control n bar data line and secondary signal pin TP disconnect.Simultaneously, touch-control handover module 130 controls the control signal of pin CKHM transmission according to first, control touch-control cabling 120 to be communicated with the first signal pins VCOM, first signal pins VCOM transmits pre-detection signal to touch-control cabling 120 and receives, with according to pre-detection result, transfer display stage or touch control detection stage to.
In the touch control detection stage, touch-control handover module 130 controls the control signal of pin CKHR, CKHG, CKHM transmission according to second, and control n bar data line and secondary signal pin TP disconnect.Meanwhile, touch-control handover module 130 controls the control signal of pin CKHM transmission according to first, and control touch-control cabling 120 and be communicated with corresponding secondary signal pin TP, secondary signal pin TP transmits touching signals to the touch-control cabling 120 of correspondence.
As shown in the figure, for any one touch-control handover module 130, touch-control handover module 130 also comprises n the 3rd switch unit 133, the input end of n the 3rd switch unit 133 be connected to for same secondary signal pin TP, the output terminal of n the 3rd switch unit 133 connects n article of data line respectively, and the control end of n the 3rd switch unit 133 is connected to the second control pin.
Alternatively, arrange the second control pin and comprise n individual different Data Control pin CKHR, CKHG and CKHB etc., the control end of n the 3rd switch unit 133 connects the individual different Data Control pin of n respectively.
Alternatively, array base palte comprises multiple touch-control handover module 130, the control end connecting the 3rd switch unit 133 of same color data line in touch-control handover module 130 is connected to same Data Control pin, and the 3rd switch unit 133 as connected red data line R all connects CKHR, the 3rd switch unit 133 of connection green data line G all connects CKHG, connect the 3rd switch unit 133 of blue data line B all connects CKHB.
Alternatively, the 3rd switch unit 133 is N-type transistor (as Suo Shi Fig. 4 (b)).Or alternatively, the 3rd switch unit 133 is P-type crystal pipe.
Shown in figure 4 (b), it is a kind of time diagram of the array base palte that another embodiment of the present invention provides.As shown in the figure, for the 3rd switch unit 133 be N-type transistor, the first switch unit 131 is P-type crystal pipe, the second switch unit 132 describes for N-type transistor, each touch-control handover module 130 correspondence red data line R, a green data line G and blue data line B.
In the display stage, second controls pin CKHR, CKHG, CKHB provides high level successively, and first controls pin CKHM and continue to provide low level, then secondary signal pin second controls pin by the 3rd switch unit 133 of three in touch-control handover module 130 successively to red data line R, green data line G, blue data line B transmitting display data signal; Meanwhile, the first switch unit 131 conducting, the second switch unit 132 end, and same first signal pins VCOM transmits common electrode signal to all touch control electrode 110, and wherein, described touch control electrode is used for self-capacitance touch-control.
At pre-detection stage, second controls pin CKHR, CKHG, CKHB all provides low level, and first controls pin CKHM and provides low level, then three the 3rd switch units 133 end simultaneously, first switch unit 131 conducting, the second switch unit 132 end, and same first signal pins VCOM transmits pre-detection signal to all touch control electrode 110.
Detected touch-control to occur, then transferred the touch control detection stage to, second controls pin CKHR, CKHG, CKHB all provides low level, and the first control pin CKHM provides high level, then three the 3rd switch units 133 end simultaneously; Meanwhile, the first switch unit 131 ends, the second switch unit 132 conducting, and the secondary signal pin TP of each the second switch unit 132 correspondence transmits touching signals and receives to the touch control electrode 110 of correspondence, to locate position of touch.
Shown in figure 4 (c), it is the another kind of time diagram of the array base palte that another embodiment of the present invention provides.As shown in the figure, for the 3rd switch unit 133 be N-type transistor, the first switch unit 131 is P-type crystal pipe, the second switch unit 132 describes for N-type transistor.
In the display stage, second controls pin CKHR, CKHG, CKHB provides high level successively, and first controls pin CKHM and continues to provide low level, then secondary signal pin TP by three the 3rd switch units 133 in touch-control handover module 130 successively to red data line R, green data line G, blue data line B transmitting display data signal; Meanwhile, the first switch unit 131 conducting, the second switch unit 132 end, and same first signal pins VCOM transmits common electrode signal to all touch control electrode 110, and wherein, described touch control electrode is used for self-capacitance touch-control.
At pre-detection stage, second controls pin CKHR, CKHG, CKHB all provides low level, and first controls pin CKHM and provides low level, then three the 3rd switch units 133 end simultaneously, first switch unit 131 conducting, the second switch unit 132 end, and same first signal pins VCOM transmits pre-detection signal to all touch control electrode 110.Do not detect touch-control to occur, then transfer the display stage to.
Shown in figure 5, it is the schematic diagram of a kind of array base palte that another embodiment of the present invention provides.Because the quantity of pixel cell is more, so all data lines that all touch-control handover modules 130 connect may be all of data lines of array base palte, also may be the segment data line of array base palte.When failing when there being data line to be connected with touch-control handover module 130, array base palte arranges multiple indicative control unit 140, and multiple indicative control unit 140 is connected with remaining all of data lines.
For any one indicative control unit 140, indicative control unit 140 comprises n the 4th switch unit 141, the output terminal of n the 4th switch unit 141 connects n article of data line respectively, the control end that the input end of n the 4th switch unit 141 is connected to same secondary signal pin TP, n the 4th switch unit 141 is connected to corresponding second respectively and controls pin CKHR, CKHG, CKHB.Alternatively, n the 4th switch unit 141 is identical with the type of the 3rd switch unit 133, at this, for the 4th switch unit 141 for N-type transistor.
Alternatively, second controls pin comprises n individual different Data Control pin CKHR, CKHG and CKHB etc., the control end of n the 4th switch unit 141 connects the individual different Data Control pin of n respectively, and the control end connecting the 4th switch unit 141 of same color data line in multiple indicative control unit 140 is connected to same Data Control pin.
As mentioned above, the quantity of secondary signal pin TP is more than or equal to the quantity of touch-control handover module 130, that is, when array base palte comprises at least one touch-control handover module 130, multiple secondary signal pin TP that multiple touch-control handover module 130 connects are part or all the secondary signal pin TP in whole secondary signal pin TP.
In the display stage, second controls pin CKHR, CKHG, CKHB provides high level successively, and first controls pin CKHM and continues to provide low level, then multiple secondary signal pin TP by the 3rd switch unit 133 in touch-control handover module 130 successively to red data line R, green data line G, blue data line B transmitting display data signal, and multiple secondary signal pin TP by the 4th switch unit 141 in indicative control unit 140 successively to red data line R, red data line G, blue data line B transmitting display data signal, simultaneously, first switch unit 131 conducting, second switch unit 132 ends, same first signal pins VCOM transmits common electrode signal to all touch control electrode 110, wherein, described touch control electrode is used for self-capacitance touch-control.
At pre-detection stage, second controls pin CKHR, CKHG, CKHB all provides low level, and first controls pin CKHM and provides low level, then all 3rd switch units 133 and all 4th switch units 141 end simultaneously, first switch unit 131 conducting, the second switch unit 132 end, and same first signal pins VCOM transmits pre-detection signal to all touch control electrode 110.
After pre-detection stage has detected and has touched generation, then transfer the touch control detection stage to, second controls pin CKHR, CKHG, CKHB all provides low level, and first controls pin CKHM and provides high level, then all 3rd switch units 133 and all 4th switch units 141 end simultaneously, simultaneously, first switch unit 131 ends, the second switch unit 132 conducting, the secondary signal pin TP of each the second switch unit 132 correspondence transmits touching signals and receives to the touch control electrode 110 of correspondence, to locate position of touch.Or, if pre-detection stage does not detect the generation of touch, then transfer the display stage to, display next frame picture.
Alternatively, touch-control handover module 130 is integrated on array base palte, and indicative control unit 140 is integrated in (as shown in Figure 5) on array base palte.Or array base palte has attached control chip, and touch-control handover module 130 is integrated in control chip.
The array base palte that the embodiment of the present invention provides, secondary signal pin TP is used for transmitting display data signal when showing by touch-control handover module, when touch-control for transmitting touching signals, therefore control chip part or all of secondary signal pin TP display the stage and the touch control detection stage multiplexing, save the I/O pin of control chip.The pin multiplexing of transmitting display data signal is the pin of transmission touching signals by the present invention, reduces the pin number of control chip, effectively reduces the size of control chip, reduce array base palte cost.Simultaneously, the present invention is before touch control detection, also carry out pre-detection, send pulse signal detection by same first signal pins VCOM to touch, touch if exist, then export touching signals with secondary signal pin TP again, confirm the position of touch point, if there is not touch, then do not carry out touch control detection, effectively reduce the power consumption of array base palte.
The present invention has an embodiment also to provide a kind of self-capacitance touch control display apparatus, this self-capacitance touch control display apparatus comprises array base palte as above, the cost of array base palte described above and power consumption are lower than the cost of array base palte of the prior art and power consumption, therefore cost and the power consumption also corresponding reduction comprising the self-capacitance touch control display apparatus of above-mentioned array base palte provided by the invention.
Note, above are only preferred embodiment of the present invention and institute's application technology principle.Skilled person in the art will appreciate that and the invention is not restricted to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and can not protection scope of the present invention be departed from.Therefore, although be described in further detail invention has been by above embodiment, the present invention is not limited only to above embodiment, when not departing from the present invention's design, can also comprise other Equivalent embodiments more, and scope of the present invention is determined by appended right.
Claims (19)
1. an array base palte, is characterized in that, comprising:
Common electrode layer, described common electrode layer comprises multiple touch control electrode, and described multiple touch control electrode is used for self-capacitance touch-control;
Many touch-control cablings, arrange with described multiple touch control electrode one_to_one corresponding and are connected;
At least one touch-control handover module;
First transmission ends of a described touch-control handover module is corresponding with described touch-control cabling to be arranged and connects; Second transmission ends of described touch-control handover module is connected with the first signal pins, and the 3rd transmission ends of described touch-control handover module is connected with secondary signal pin;
In the display stage, described touch-control handover module controls described touch-control cabling and is communicated with described first signal pins, and described first signal pins is to described touch-control cabling transmission common electrode signal; In the touch control detection stage, described touch-control handover module controls described touch-control cabling and is communicated with described secondary signal pin, and described secondary signal pin is to described touch-control cabling transmission touching signals.
2. array base palte according to claim 1, it is characterized in that, also pre-detection stage was comprised before the described touch control detection stage, at described pre-detection stage, described touch-control handover module controls described touch-control cabling and is communicated with described first signal pins, and described first signal pins is to described touch-control cabling transmission pre-detection signal.
3. array base palte according to claim 2, is characterized in that, after described pre-detection stage has detected touch-control generation, enters the touch control detection stage; If do not detect touch-control at pre-detection stage to occur, enter the display stage.
4. array base palte according to claim 1, is characterized in that, described touch-control handover module also comprises the first control end, and described first control end and first controls pin and is connected, and described first controls pin is used for described touch-control handover module transmission of control signals;
In the display stage, described touch-control handover module controls the control signal of pin transmission according to described first, controls described touch-control cabling and is communicated with described first signal pins; In the touch control detection stage, described touch-control handover module controls the control signal of pin transmission according to described first, controls described touch-control cabling and is communicated with described secondary signal pin.
5. array base palte according to claim 4, it is characterized in that, described array base palte comprises multiple described touch-control handover module, described multiple touch-control handover module and many described touch-control cablings connect one to one, and the second transmission ends of multiple described touch-control handover module is connected to same described first signal pins.
6. array base palte according to claim 5, is characterized in that, described touch-control handover module comprises the first switch unit and the second switch unit;
The control end and described first of described first switch unit controls that pin is connected, the first output terminal is connected with described touch-control cabling, first input end is connected with described first signal pins; The control end and described first of described second switch unit controls that pin is connected, the first transmission ends is connected with described touch-control cabling, the second transmission ends is connected with described secondary signal pin.
7. array base palte according to claim 6, is characterized in that, described first switch unit is P-type crystal pipe, and described second switch unit is N-type transistor; Or described first switch unit is N-type transistor, described second switch unit is P-type crystal pipe.
8. array base palte according to claim 6, is characterized in that, the described first the second son controlling the first son control pin and transmission the second control signal that pin comprises transmission first control signal controls pin;
The control end of described first switch unit controls pin with described first son and is connected; The control end of described second switch unit controls pin with described second son and is connected;
The display stage, described first switch unit controls described touch-control cabling according to described first control signal and is communicated with described first signal pins, and described second switch unit controls described touch-control cabling according to described second control signal and described secondary signal pin disconnects;
The touch control detection stage, described first switch unit controls described touch-control cabling according to described first control signal and described first signal pins disconnects, and described second switch unit controls described touch-control cabling according to described second control signal and is communicated with described second quotation marks pin.
9. array base palte according to claim 8, it is characterized in that, described array base palte comprises multiple described touch-control handover module, the control end of each first switch unit of multiple described touch-control handover module connects same described first son and controls pin, and the control end of each second switch unit of multiple described touch-control handover module connects same described second son and controls pin.
10. array base palte according to claim 9, is characterized in that, the level of described first control signal and described second control signal is contrary.
11. array base paltes according to claim 10, is characterized in that, described first switch unit is P-type crystal pipe, and described second switch unit is P-type crystal pipe; Or described first switch unit is N-type transistor, described second switch unit is N-type transistor.
12. array base paltes according to claim 6, is characterized in that, described array base palte also comprises a plurality of data lines and multi-strip scanning line, and the multiple pixel cell of restriction is intersected in many described data lines and many described sweep trace insulation;
A described touch-control handover module also comprises output terminal and the second control end, and the output terminal of described touch-control handover module connects data line described in n bar, n be more than or equal to 1 positive integer, and the described pixel cell of the corresponding different colours of data line described in n bar; Second control end and second of described touch-control handover module controls pin and is connected;
In the display stage, described touch-control handover module controls data line described in the control signal control n bar of pin transmission according to described second and is communicated with described secondary signal pin successively, and described secondary signal pin is to data line described in n bar successively transmitting display data signal.
13. array base paltes according to claim 12, it is characterized in that, described touch-control handover module also comprises n the 3rd switch unit, the input end of n described 3rd switch unit is connected to same described secondary signal pin, the output terminal of n described 3rd switch unit connects described n article data line respectively, and the control end of n described 3rd switch unit is connected to described second and controls pin.
14. array base paltes according to claim 13, is characterized in that, described second controls pin comprises the individual different Data Control pin of n;
The control end of n described 3rd switch unit connects the individual different Data Control pin of n respectively.
15. array base paltes according to claim 14, is characterized in that, described array base palte comprises multiple described touch-control handover module, and the control end connecting the 3rd switch unit of same color pixel cell is connected to same Data Control pin.
16. arrays according to claim 13 are succeeded, and it is characterized in that, described 3rd switch unit is N-type transistor or P-type crystal pipe.
17. according to the arbitrary described array base palte of claim 1 ~ 16, and it is characterized in that, described touch-control handover module is integrated on described array base palte.
18. according to the arbitrary described array base palte of claim 1 ~ 16, and it is characterized in that, described array base palte has attached control chip, described touch-control handover module is integrated in described control chip.
19. 1 kinds of self-capacitance touch control display apparatus, is characterized in that, comprise the array base palte as described in any one of claim 1-18.
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