CN203178995U - Touch screen and display device - Google Patents
Touch screen and display device Download PDFInfo
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- CN203178995U CN203178995U CN 201320153839 CN201320153839U CN203178995U CN 203178995 U CN203178995 U CN 203178995U CN 201320153839 CN201320153839 CN 201320153839 CN 201320153839 U CN201320153839 U CN 201320153839U CN 203178995 U CN203178995 U CN 203178995U
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Abstract
The utility model belongs to the technical field of display and discloses a touch screen and a display device. A plurality of touch control driving electrodes are formed by a plurality of public electrodes arranged on an array base plate, in addition, one touch control driving electrode comprises one or a plurality of public electrodes, in addition, a plurality of touch control driving electrodes form a plurality of touch control driving electrode groups, in addition, one touch control driving electrode group comprises one or a plurality of touch control driving electrodes, and a plurality of touch control sensing electrodes are arranged on a color film base plate, wherein the touch control driving electrodes and the touch control sensing electrodes are in transverse and vertical crossed wire distribution. In addition, a driving circuit is adopted, in the display time period in one-frame image display time, public electrode signals are transmitted to all of the touch control driving electrodes, and in the touch control time period, the touch control scanning signals are only transmitted to one group of touch control driving electrode groups. Only partial detection points are subjected to touch detection in the display time of one frame of image, so the charging time of pixel units is increased, and the design difficult of the pixel unit is reduced.
Description
Technical field
The utility model relates to the display technique field, particularly relates to a kind of touch-screen and display device.
Background technology
In touch screen technology, with respect to resistive touch screen, capacitive touch screen have the life-span long, transmittance is high, can support advantages such as multi-point touch.And, capacitive touch screen to noise and over the ground stray capacitance the good restraining effect is also arranged.Therefore, capacitive touch screen has become one of focus of touch-screen manufacturing nowadays.And the embedded capacitive touch-screen is embedded in display screen inside by the touch-control electrode with touch-screen, and thickness that can the attenuate module can reduce the manufacturing cost of touch-screen again greatly, is subjected to the favor of each big panel producer.
The touch of capacitive touch screen detects principle: by form touch-control drive electrode and the touch-control sensing electrode of horizontal vertical cross-distribution in touch-screen, and at infall formation capacitance matrix, apply touch scanning signals to each row touch-control drive electrode respectively then, and detect the output signal of the touch sensible electrode corresponding with every capable touch-control drive electrode successively, thereby detect the capacitance variations in the capacitance matrix, judge touch location.
Owing to need increase touch-control drive electrode and touch-control sensing electrode at display screen, can increase the border width of whole module, and in the demonstration time of a frame picture, comprise touch control detection period and pixel cell charging display time interval, seriously compress the duration of charging of pixel cell, increased the design difficulty of pixel cell.
The utility model content
(1) technical matters that will solve
The technical problems to be solved in the utility model provides a kind of touch-screen and display device, in the duration of charging of pixel cell when increase showing every frame picture, reduces the design difficulty of pixel cell.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of touch-screen, comprise color membrane substrates and array base palte, and the liquid crystal layer between described array base palte and color membrane substrates, be formed with a plurality of pixel cells that matrix is arranged that are on the described array base palte, described pixel cell comprises thin film transistor (TFT), pixel electrode and public electrode, it is characterized in that, a plurality of described public electrodes are formed many touch-control drive electrodes, and a described touch-control drive electrode comprises one or more described public electrodes; Described many touch-control drive electrodes are formed many group touch-control drive electrode groups, and one group of described touch-control drive electrode group comprises one or more described touch-control drive electrode; Have many touch-control sensing electrodes on the described color membrane substrates;
Wherein, the horizontal vertical cross wire of described touch-control drive electrode and touch-control sensing electrode;
Described touch-screen also comprises driving circuit, in the demonstration time period of frame picture in the demonstration time, described driving circuit transmits common electrode signal to all touch-control drive electrodes, and in the touch-control time period of frame picture in the demonstration time, described driving circuit only transmits touch scanning signals to one group of touch-control drive electrode group wherein.
Aforesaid touch-screen, preferably, described many touch-control drive electrodes are formed the first touch-control drive electrode group and the second touch-control drive electrode group.
Aforesaid touch-screen, preferably, described touch-control drive electrode is along the line direction wiring of pixel cell, and described touch-control sensing electrode is along the column direction wiring of pixel cell;
The described first touch-control drive electrode group comprises all odd-numbered line touch-control drive electrodes, and the described second touch-control drive electrode group comprises all even number line touch-control drive electrodes.
Aforesaid touch-screen, preferably, the drain electrode of described touch-control drive electrode and a switching thin-film transistor electrically connects; Odd-numbered line touch-control drive electrode and the source electrode electric connection of two corresponding switching thin-film transistors respectively of even number line touch-control drive electrode with adjacent share a touch-control sweep trace;
Described driving circuit comprises touch switch driving circuit and touch-control scan drive circuit;
Described touch switch driving circuit is connected with the grid of each described switching thin-film transistor, is used for transmitting touch switch signal, the switch of gauge tap thin film transistor (TFT) to the grid of each described switching thin-film transistor;
Described touch-control scan drive circuit is connected with described touch-control sweep trace, in the demonstration time period of two continuous frames picture in the demonstration time, described touch-control scan drive circuit transmits common electrode signal to all touch-control drive electrodes, and in the touch-control time period of two continuous frames picture in the demonstration time, described touch-control scan drive circuit transmits touch scanning signals to the described first touch-control drive electrode group and the second touch-control drive electrode group respectively.
Aforesaid touch-screen, preferably, the grid of the switching thin-film transistor corresponding with all described odd-numbered line touch-control drive electrodes shares the first touch switch line; The grid of the switching thin-film transistor corresponding with all described even number line touch-control drive electrodes shares the second touch switch line.
Simultaneously, the utility model also provides a kind of display device, comprises aforesaid touch-screen.
(3) beneficial effect
Touch-screen provided by the utility model and display device form many touch-control drive electrodes by a plurality of public electrodes on the array base palte, and a touch-control drive electrode comprises one or more public electrodes; And form many group touch-control drive electrode groups by many touch-control drive electrodes, and one group of touch-control drive electrode group comprises one or more touch-control drive electrode, and have many touch-control sensing electrodes on the color membrane substrates, wherein, the horizontal vertical cross wire of touch-control drive electrode and touch-control sensing electrode, form the coupling capacitance matrix at infall, and corresponding one of each coupling capacitance touches check point.And driving circuit is set, in the demonstration time period of frame picture in the demonstration time, driving circuit transmits common electrode signal to all touch-control drive electrodes, be used for showing, and in the touch-control time period of frame picture in the demonstration time, driving circuit only transmits touch scanning signals to one group of touch-control drive electrode group wherein, touch detection with the touch check point to this touch-control drive electrode group correspondence, the touch-control sensing electrode is used for voltage and the output of coupling touch scanning signals, by detecting this voltage signal, can determine touch point position.Because only the touch check point to one group of touch-control drive electrode group correspondence touches detection in the demonstration time of a frame picture, thereby increase the duration of charging that a frame picture shows pixel cell in the time, reduced the design difficulty of pixel cell.
Description of drawings
Fig. 1 is vertical cross-sectional schematic of touch-screen among the utility model embodiment;
Fig. 2 is the principle of work synoptic diagram one of touch-screen among the utility model embodiment;
Fig. 3 is the principle of work synoptic diagram two of touch-screen among the utility model embodiment;
Fig. 4 is the schematic top plan view of the array base palte of touch-screen among the utility model embodiment;
Wherein, 1: array base palte; 2: color membrane substrates; 3: the touch-control drive electrode; 4: the touch-control sensing electrode; 5: pixel electrode; 6: liquid crystal layer; 7: switching thin-film transistor; 8: passivation layer; 9: public electrode; 10: driving circuit; 11: the touch switch driving circuit; 12: the touch-control scan drive circuit; 13: the touch-control sweep trace; 14: testing circuit; 15: the first touch switch lines; 16: the second touch switch lines; 17: underlay substrate; 101: the first touch-control drive electrode groups; 102: the second touch-control drive electrode groups; 301: odd-numbered line touch-control drive electrode; 302: even number line touch-control drive electrode.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
Embodiment one
Figure 1 shows that vertical cross-sectional schematic of touch-screen among the utility model embodiment; Figure 2 shows that the principle of work synoptic diagram of touch-screen among the utility model embodiment.In conjunction with illustrated in figures 1 and 2, the touch-screen in the present embodiment specifically comprises: array base palte 1 and color membrane substrates 2, and the liquid crystal layer 6 between array base palte 1 and color membrane substrates 2.Array base palte 1 comprises underlay substrate 17 and a plurality of pixel cells that are the matrix arrangement that are formed on the underlay substrate 17, and this pixel cell comprises thin film transistor (TFT), pixel electrode 5 and public electrode 9, is formed with passivation layer 8 between pixel electrode 5 and public electrode 9.Wherein, public electrode 9 can be positioned at the top of pixel electrode 5, also can be positioned at the below of pixel electrode 5, as shown in Figure 1.And a plurality of public electrodes 9 are formed 3, one touch-control drive electrodes 3 of many touch-control drive electrodes and are comprised one or more public electrodes 9; Many touch-control drive electrode 3 is formed many group touch-control drive electrode groups, one group of touch-control drive electrode group comprises one or more touch-control drive electrode 3, have many touch-control sensing electrode 4(touch-control sensing electrodes 4 on the color membrane substrates 2 and can be formed on color membrane substrates 2 towards the one side of liquid crystal layer 6, also can be formed on color membrane substrates 2 one side of liquid crystal layer 6 dorsad).Wherein, touch-control drive electrode 3 and touch-control sensing electrode 4 horizontal vertical cross wires form the coupling capacitance matrix at infall, and as shown in Figure 2, each coupling capacitance i.e. a corresponding touch check point.
This touch-screen also comprises driving circuit 10, and in the demonstration time period of frame picture in the demonstration time, driving circuit 10 transmits common electrode signal to all touch-control drive electrodes 3, is used for showing; And in the touch-control time period of frame picture in the demonstration time, only transmit touch scanning signals to one group of touch-control drive electrode group wherein, touch detection with the touch check point to this group touch-control drive electrode group correspondence, touch-control sensing electrode 4 is used for voltage signal and the output of this touch scanning signals of coupling, 14(is generally amplifying circuit by testing circuit) detect this voltage signal, determine the position at place, touch point.The utility model has reduced by a frame picture and has shown the touch detection time that the time is interior, thereby has increased the duration of charging of pixel electrode 5, has reduced the design difficulty of pixel electrode 5.Simultaneously, can apply low level signal to other touch-control drive electrode of organizing in the touch-control drive electrode group 3, reduce the interference that the touch check point of this group touch-control drive electrode group correspondence is touched detection.Can transmit touch scanning signals to each group touch-control drive electrode group successively in the touch-control time period of continuous multiple frames picture in the demonstration time in the present embodiment, to finish all touches that touches check point be detected.
Wherein, because the precision of touch-screen is usually in the millimeter level, and the precision of display screen is usually at micron order, and therefore a touch-control drive electrode 3 generally is made up of a plurality of public electrodes 9, in conjunction with shown in Figure 4.
Touch-screen in the present embodiment forms many touch-control drive electrodes by a plurality of public electrodes on the array base palte, and a touch-control drive electrode comprises one or more public electrodes; And form many group touch-control drive electrode groups by many touch-control drive electrodes, and one group of touch-control drive electrode group comprises one or more touch-control drive electrode, and have many touch-control sensing electrodes on the color membrane substrates, wherein, the horizontal vertical cross wire of touch-control drive electrode and touch-control sensing electrode, form the coupling capacitance matrix at infall, and corresponding one of each coupling capacitance touches check point.And driving circuit is set, in the demonstration time period of frame picture in the demonstration time, driving circuit transmits common electrode signal to all touch-control drive electrodes, be used for showing, and in the touch-control time period of frame picture in the demonstration time, driving circuit only transmits touch scanning signals to one group of touch-control drive electrode group wherein, touch detection with the touch check point to this touch-control drive electrode group correspondence, the touch-control sensing electrode is used for voltage and the output of coupling touch scanning signals, by detecting this voltage signal, can determine touch point position.Because only the touch check point to one group of touch-control drive electrode group correspondence touches detection in the demonstration time of a frame picture, thereby increase the duration of charging that a frame picture shows pixel cell in the time, reduced the design difficulty of pixel cell.
Further, in conjunction with shown in Figure 3, in order to guarantee touching the touch accuracy of detection of check point, preferably finish in the demonstration time of two continuous frames picture all touches that touches check point are detected, namely many touch-control drive electrodes are formed the first touch-control drive electrode group 101 and the second touch-control drive electrode group 102.In the demonstration time of two continuous frames picture (obviously wherein a frame is the odd-numbered frame picture, and another frame is the even frame picture):
In the demonstration time period of odd-numbered frame picture in the demonstration time, driving circuit transmits common electrode signal to the first touch-control drive electrode group 101 and the second drive electrode group 102, in the touch-control time period of odd-numbered frame picture in the demonstration time, only apply touch scanning signals to the first touch-control drive electrode group 101, voltage signal and the output of touch-control sensing electrode 4 coupling touch scanning signals; In the demonstration time period of even frame picture in the demonstration time, driving circuit transmits common electrode signal to the first touch-control drive electrode group 101 and the second drive electrode group 102, in the touch-control time period of even frame picture in the demonstration time, only apply touch scanning signals to the second touch-control drive electrode group 102, voltage signal and the output of touch-control sensing electrode 4 coupling touch scanning signals.In the demonstration time of two continuous frames picture, to finish all touches that touches check point are detected.
Further, can design touch-control drive electrode 3 in the present embodiment along the line direction wiring of pixel cell, and touch-control sensing electrode 4 is along the column direction wiring of pixel cell, to realize the horizontal vertical cross wire of touch-control drive electrode 3 and touch-control sensing electrode 4.The preferred first touch-control drive electrode group 101 comprises that all odd-numbered line touch-control drive electrode 301, the second touch-control drive electrode groups 102 comprise all even number line touch-control drive electrodes 302, as shown in Figure 3.The touch-control time period in the demonstration time of odd-numbered frame picture, touch check point to all odd-numbered line touch-control drive electrode 301 correspondences touches detection, the touch-control time period in the demonstration time of even frame picture, the touch check point of all even number line touch-control drive electrode 302 correspondences is touched detection.Because the precision that touch-screen detects can be thought substantially in the demonstration time of two frame pictures the same position zone is all detected usually in the millimeter level, effectively prevent the wrong report touch point that high frequency noise causes.
Further, in order to reduce the border width of whole module, as shown in Figure 3, in the present embodiment drain electrode of touch-control drive electrode (comprising all odd-numbered line touch-control drive electrode 301 and all even number line touch-control drive electrodes 302) with a switching thin-film transistor 7 electrically connected, wherein, in conjunction with shown in Figure 1, switching thin-film transistor 7 can with pixel cell on the array base palte 1 in thin film transistor (TFT) form with layer, its drain electrode can be by via hole (not shown) and the electric connection of touch-control drive electrode.And driving circuit is set comprises touch switch driving circuit 11 and touch-control scan drive circuit 12, wherein, touch switch driving circuit 11 is used for transmitting touch switch signal, the switch of gauge tap thin film transistor (TFT) 7 to the grid of each switching thin-film transistor 7.Will with adjacent odd-numbered line touch-control drive electrode 301 and the even number line touch-control drive electrode 302 source electrode electric connection of two corresponding switching thin-film transistors 7 respectively, share a touch-control sweep trace 13, reduce the touch-control sweep trace cabling of half, reduced the border width that takies.And touch-control scan drive circuit 12 is connected with touch-control sweep trace 13, when the switching thin-film transistor 7 of the first touch-control drive electrode group, 101 correspondences is opened, in the touch-control time period of odd-numbered frame picture in the demonstration time, touch-control scan drive circuit 12 is used for transmitting touch scanning signals to the first touch-control drive electrode group 101; When the switching thin-film transistor 7 of the second touch-control drive electrode group, 102 correspondences was opened, in the touch-control time period of even frame picture in the demonstration time, touch-control scan drive circuit 12 was used for transmitting touch scanning signals to the second touch-control drive electrode group 102.Preferably, the shared first touch switch line 15 of grid of the switching thin-film transistor 7 that design and all odd-numbered line touch-control drive electrodes 301 are corresponding, the grid of the switching thin-film transistor 7 corresponding with all even number line touch-control drive electrodes 302 shares the second touch switch line 16, in the demonstration time of odd-numbered frame picture, only just can control the switching thin-film transistor 7 of opening all odd-numbered line touch-control drive electrode 301 correspondences by the touch switch signal on the first touch switch line 15; In the demonstration time of even frame picture, only just can control the switching thin-film transistor 7 of opening even number line touch-control drive electrode 302 correspondences by the touch switch signal on the second touch switch line 16, can further reduce the cabling of touch switch line.
In the present embodiment each switching thin-film transistor 7 is arranged on outside touch area and the viewing area, not influence the aperture opening ratio of display screen.
Embodiment two
Based on same utility model design, a kind of display device is provided in the present embodiment, it comprises the touch-screen among the embodiment one, touch detection owing to only part is touched check point in the demonstration time of a frame picture, improved the duration of charging of frame picture pixel cell in the demonstration time, reduce the design difficulty of pixel cell, guaranteed the display quality of display device.
Embodiment three
Correspondingly, provide the driving method of the touch-screen among a kind of embodiment one in the present embodiment, it comprises that the demonstration time with touch-screen one frame picture is divided into the step that shows time period and touch-control time period, also comprises:
Step S1, many touch-control drive electrodes are divided into many group touch-control drive electrode groups by certain rule;
Preferably many touch-control drive electrodes are divided into two groups of touch-control drive electrode groups, detect in the demonstration time of two continuous frames picture, to finish all touches that touch check point, guarantee to touch the precision that detects.Concrete, can be along the line direction wiring touch-control drive electrode of pixel cell, then with all odd-numbered line touch-control drive electrodes as the first touch-control drive electrode group, with all even number line touch-control drive electrodes as the second touch-control drive electrode group.
Step S2, in the demonstration time period of frame picture in the demonstration time, every touch-control drive electrode of described touch-screen is applied common electrode signal, simultaneously the touch-control sensing electrode is applied low level signal; In the touch-control time period of frame picture in the demonstration time, only apply touch scanning signals to one group of touch-control drive electrode group wherein, touch-control sensing electrode be coupled voltage signal and the output of described touch scanning signals.
Wherein, in the demonstration time period in the demonstration time, the touch-control sensing electrode being applied low level signal at a frame picture, is in order not influence procedure for displaying.
In order to guarantee to touch the precision of detection, preferably in the demonstration time of two continuous frames picture, finish all touches that touches check point are detected, be about to many touch-control drive electrodes and be divided into the first touch-control drive electrode group and the second touch-control drive electrode group by certain rule.Then in the demonstration time of two continuous frames picture:
In the demonstration time period of frame picture in the demonstration time, every touch-control drive electrode of touch-screen is applied common electrode signal, simultaneously the touch-control sensing electrode is applied low level signal; In this frame picture touch-control time period in the demonstration time, only apply touch scanning signals to the first touch-control drive electrode group, the touch-control sensing electrode be coupled described touch scanning signals voltage signal and output;
In the demonstration stage of next frame picture in the demonstration time, every touch-control drive electrode of touch-screen is applied common electrode signal, simultaneously the touch-control sensing electrode is applied low level signal; In this frame picture touch-control time period in the demonstration time, only apply touch scanning signals to the second touch-control drive electrode group, the touch-control sensing electrode be coupled described touch scanning signals voltage signal and output.
Wherein, many touch-control drive electrodes are divided into two groups of touch-control drive electrode prescription formulas to be had a variety of, can be along the line direction wiring touch-control drive electrode of pixel cell in the present embodiment, and with all odd-numbered line touch-control drive electrodes as the first touch-control drive electrode group, all even number line touch-control drive electrodes are as the second touch-control drive electrode group.Because the precision that touch-screen detects can be thought substantially in the demonstration time of two continuous frames picture the same position zone is all detected usually in the millimeter level, effectively prevent the wrong report touch point that high frequency noise causes.Be specifically as follows:
In the demonstration time period of odd-numbered frame picture in the demonstration time, every touch-control drive electrode of touch-screen is applied common electrode signal, simultaneously the touch-control sensing electrode is applied low level signal; In the touch-control time period of odd-numbered frame picture in the demonstration time, the first touch-control drive electrode group is applied touch scanning signals, voltage signal and the output of touch-control sensing electrode coupling touch scanning signals, simultaneously, can apply low level signal to all even number line touch-control drive electrodes, reduce the interference that the touch check point of this group touch-control drive electrode group correspondence is touched detection;
In the demonstration time period of even frame picture in the demonstration time, every touch-control drive electrode of touch-screen is applied common electrode signal, simultaneously the touch-control sensing electrode is applied low level signal; In the touch-control time period of even frame picture in the demonstration time, the second touch-control drive electrode group is applied touch scanning signals, voltage signal and the output of touch-control sensing electrode coupling touch scanning signals, simultaneously, can apply low level signal to all odd-numbered line touch-control drive electrodes, reduce the interference that the touch check point of this group touch-control drive electrode group correspondence is touched detection.
Wherein, in the touch-control time period, can overcome interference to the touch-control process by closing thin film transistor (TFT) in the pixel cell, also can overcome interference to the touch-control process by no signal input on data line and grid line.
In order to reduce cabling, the driving method of touch-screen can also comprise in the present embodiment:
The drain electrode of touch-control drive electrode (comprising odd-numbered line touch-control drive electrode and even number line touch-control drive electrode) with a switching thin-film transistor electrically connected, and will with adjacent odd-numbered line touch-control drive electrode and the source electrode electric connection of two corresponding switching thin-film transistors respectively of even number line touch-control drive electrode, share a touch-control sweep trace, to reduce the cabling of touch-control sweep trace.Correspondingly, the touch-control stage of two continuous frames picture in the demonstration time specifically may further comprise the steps:
In the touch-control time period of odd-numbered frame picture in the demonstration time, the switching thin-film transistor corresponding with all odd-numbered line touch-control drive electrodes opened in control, transmits touch scanning signals by the touch-control sweep trace to the first touch-control drive electrode group;
In the touch-control time period of even frame picture in the demonstration time, the switching thin-film transistor corresponding with all even number line touch-control drive electrodes opened in control, transmits touch scanning signals by the touch-control sweep trace to the second touch-control drive electrode group.
In order further to reduce cabling, preferably, in the touch-control time period of odd-numbered frame picture in the demonstration time, the switching thin-film transistor corresponding with all odd-numbered line touch-control drive electrodes by the first touch switch alignment transmits the touch switch signal, and the switching thin-film transistor corresponding with all odd-numbered line touch-control drive electrodes opened in control; In the touch-control time period of even frame picture in the demonstration time, the switching thin-film transistor corresponding with all even number line touch-control drive electrodes by the second touch switch alignment transmits the touch switch signal, and the switching thin-film transistor corresponding with all even number line touch-control drive electrodes opened in control.To reduce the cabling of touch switch line.
As can be seen from the above embodiments, touch-screen provided by the utility model and display device form many touch-control drive electrodes by a plurality of public electrodes on the array base palte, and a touch-control drive electrode comprises one or more public electrodes; And form many group touch-control drive electrode groups by many touch-control drive electrodes, and one group of touch-control drive electrode group comprises one or more touch-control drive electrode, and have many touch-control sensing electrodes on the color membrane substrates, wherein, the horizontal vertical cross wire of touch-control drive electrode and touch-control sensing electrode, form the coupling capacitance matrix at infall, and corresponding one of each coupling capacitance touches check point.And driving circuit is set, in the demonstration time period of frame picture in the demonstration time, driving circuit transmits common electrode signal to all touch-control drive electrodes, be used for showing, and in the touch-control time period of frame picture in the demonstration time, driving circuit only transmits touch scanning signals to one group of touch-control drive electrode group wherein, touch detection with the touch check point to this touch-control drive electrode group correspondence, the touch-control sensing electrode is used for voltage and the output of coupling touch scanning signals, by detecting this voltage signal, can determine touch point position.Because only the touch check point to one group of touch-control drive electrode group correspondence touches detection in the demonstration time of a frame picture, thereby increase the duration of charging that a frame picture shows pixel cell in the time, reduced the design difficulty of pixel cell.
The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and replacement, these improvement and replacement also should be considered as protection domain of the present utility model.
Claims (6)
1. touch-screen, comprise color membrane substrates and array base palte, and the liquid crystal layer between described array base palte and color membrane substrates, be formed with a plurality of pixel cells that matrix is arranged that are on the described array base palte, described pixel cell comprises thin film transistor (TFT), pixel electrode and public electrode, it is characterized in that a plurality of described public electrodes are formed many touch-control drive electrodes, and a described touch-control drive electrode comprises one or more described public electrodes; Described many touch-control drive electrodes are formed many group touch-control drive electrode groups, and one group of described touch-control drive electrode group comprises one or more described touch-control drive electrode; Have many touch-control sensing electrodes on the described color membrane substrates;
Wherein, the horizontal vertical cross wire of described touch-control drive electrode and touch-control sensing electrode;
Described touch-screen also comprises driving circuit, in the demonstration time period of frame picture in the demonstration time, described driving circuit transmits common electrode signal to all touch-control drive electrodes, and in the touch-control time period of frame picture in the demonstration time, described driving circuit only transmits touch scanning signals to one group of touch-control drive electrode group wherein.
2. touch-screen according to claim 1 is characterized in that, described many touch-control drive electrodes are formed the first touch-control drive electrode group and the second touch-control drive electrode group.
3. touch-screen according to claim 2 is characterized in that, described touch-control drive electrode is along the line direction wiring of pixel cell, and described touch-control sensing electrode is along the column direction wiring of pixel cell;
The described first touch-control drive electrode group comprises all odd-numbered line touch-control drive electrodes, and the described second touch-control drive electrode group comprises all even number line touch-control drive electrodes.
4. touch-screen according to claim 3 is characterized in that, the drain electrode of described touch-control drive electrode and a switching thin-film transistor electrically connects; Odd-numbered line touch-control drive electrode and the source electrode electric connection of two corresponding switching thin-film transistors respectively of even number line touch-control drive electrode with adjacent share a touch-control sweep trace;
Described driving circuit comprises touch switch driving circuit and touch-control scan drive circuit;
Described touch switch driving circuit is connected with the grid of each described switching thin-film transistor, is used for transmitting touch switch signal, the switch of gauge tap thin film transistor (TFT) to the grid of each described switching thin-film transistor;
Described touch-control scan drive circuit is connected with described touch-control sweep trace, in the demonstration time period of two continuous frames picture in the demonstration time, described touch-control scan drive circuit transmits common electrode signal to all touch-control drive electrodes, and in the touch-control time period of two continuous frames picture in the demonstration time, described touch-control scan drive circuit transmits touch scanning signals to the described first touch-control drive electrode group and the second touch-control drive electrode group respectively.
5. touch-screen according to claim 4 is characterized in that, the grid of the switching thin-film transistor corresponding with all described odd-numbered line touch-control drive electrodes shares the first touch switch line; The grid of the switching thin-film transistor corresponding with all described even number line touch-control drive electrodes shares the second touch switch line.
6. a display device is characterized in that, comprises each described touch-screen of claim 1-5.
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| CN 201320153839 CN203178995U (en) | 2013-03-29 | 2013-03-29 | Touch screen and display device |
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| CN 201320153839 CN203178995U (en) | 2013-03-29 | 2013-03-29 | Touch screen and display device |
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| CN103530012A (en) * | 2013-10-31 | 2014-01-22 | 中环高科（天津）股份有限公司 | Method for adopting single touch drive module to drive multiple capacitive touch screens |
| CN104951162A (en) * | 2015-07-08 | 2015-09-30 | 京东方科技集团股份有限公司 | Touch display panel and driving method |
| CN104991689A (en) * | 2015-08-10 | 2015-10-21 | 京东方科技集团股份有限公司 | Driving method and device of touch display panel and touch display panel |
| WO2016026222A1 (en) * | 2014-08-22 | 2016-02-25 | 京东方科技集团股份有限公司 | Touch control display device and driving method thereof |
| CN105446547A (en) * | 2016-01-25 | 2016-03-30 | 厦门天马微电子有限公司 | Touch control device and driving method thereof and touch control display panel and driving method thereof |
| WO2016106785A1 (en) * | 2014-12-30 | 2016-07-07 | 深圳市华星光电技术有限公司 | Display panel having touch function and fault detection method |
| CN105760017A (en) * | 2016-02-17 | 2016-07-13 | 京东方科技集团股份有限公司 | Touch screen driving method and driving integrated circuit |
| CN106094312A (en) * | 2016-08-24 | 2016-11-09 | 武汉华星光电技术有限公司 | Touch control LCD (Liquid Crystal Display) panel, CF substrate and touch control display apparatus |
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