CN202976049U - Capacitor type built-in touch screen and display device - Google Patents
Capacitor type built-in touch screen and display device Download PDFInfo
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- CN202976049U CN202976049U CN 201220689896 CN201220689896U CN202976049U CN 202976049 U CN202976049 U CN 202976049U CN 201220689896 CN201220689896 CN 201220689896 CN 201220689896 U CN201220689896 U CN 201220689896U CN 202976049 U CN202976049 U CN 202976049U
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Abstract
The utility model discloses a capacitor type built-in touch screen and a display device. A common electrode layer connected with the whole surface in a thin film transistor (TFT) array substrate is divided so as to form a touch control induction electrode and a touch control drive electrode, and the touch control drive electrode and the touch control induction electrode are driven in a time-share mode, so that a touch control function and a display function are achieved. Due to the fact that the touch control function is achieved by changing the structure of the common electrode layer of the TFT array substrate, the touch screen can be machined without adding any extra technology on the existing preparation technology, and production cost is saved. Besides, a first metal drive electrode and/or a first metal induction electrode are/is arranged above a data signal line so as to solve the abnormal display problems of the touch screen caused by the fact that signals loaded on the data signal line are transferred to a horizontal electric field above the TFT array substrate through a dividing gap and influence normal display of liquid crystals, and a black matrix of a colored substrate above the data signal line is too thin to cover the liquid crystal part which cannot display normally.
Description
Technical field
The utility model relates to the display technique field, relates in particular to the embedded touch-screen of a kind of condenser type and display device.
Background technology
Along with the develop rapidly of display technique, touch-screen (Touch Screen Panel) spreads all in people's life gradually.At present, touch-screen can be divided into according to forming structure: external hanging type touch-screen (Add on Mode Touch Panel), covering surfaces formula touch-screen (On Cell Touch Panel) and embedded touch-screen (In Cell Touch Panel).Wherein, the external hanging type touch-screen is with touch-screen and LCDs (Liquid Crystal Display, LCD) separately produce, then fitting to becomes the LCDs with touch function together, and there are the shortcomings such as cost of manufacture is higher, light transmission rate is lower, module is thicker in the external hanging type touch-screen.And embedded touch-screen is embedded in LCDs inside with the touch-control electrode of touch-screen, and thickness that can attenuate module integral body can reduce again the cost of manufacture of touch-screen greatly, is subject to the favor of each large panel producer.
at present, existing condenser type embedded (In Cell) touch-screen is at existing TFT(Thin Film Transistor, what Thin Film Transistor (TFT)) on array base palte, direct increase touch-control sweep trace in addition and touch induction lines realized, namely make on the surface of tft array substrate the transparency conductive electrode that two-layer mutual antarafacial intersects, be generally strip ITO electrode, this two-layer ITO(Indium Tin Oxides, indium tin metal oxide) electrode is respectively as touch-control drive wire and the touch induction lines of touch-screen, antarafacial intersection formation inductance capacitance at two ITO electrodes.Its course of work is: when the ITO electrode as the touch-control drive wire is loaded touch-control driving signal, detect the voltage signal that touch induction lines is coupled out by inductance capacitance, in this process, when human body contact touch-screen is arranged, people's bulk electric field will act on inductance capacitance, and the capacitance of inductance capacitance is changed, and then changes the voltage signal that touch induction lines is coupled out, according to the variation of voltage signal, just can determine contact position.
The structural design of the embedded touch-screen of above-mentioned condenser type need to increase new rete on existing tft array substrate, causing need to increase new technique when making tft array substrate, and production cost is increased, and is unfavorable for enhancing productivity.
The utility model content
The utility model embodiment provides the embedded touch-screen of a kind of condenser type and display device, in order to the embedded touch-screen of condenser type of realizing that cost is lower, production efficiency is higher.
The embedded touch-screen of a kind of condenser type that the utility model embodiment provides, comprise the tft array substrate with data signal line and common electrode layer, described common electrode layer is positioned at the top of described data signal line, is provided with to be a plurality of pixel cells that matrix is arranged in described tft array substrate
Described common electrode layer comprises touch-control sensing electrode and the touch-control drive electrode of mutually insulated, and the gap between the pixel cell of the subdivided gap between described touch-control sensing electrode and described touch-control drive electrode and adjacent lines and adjacent columns is relative; In the displaying time section, described touch-control drive electrode and described touch-control sensing electrode are applied common electrode signal; In the touch-control time period, described touch-control drive electrode is applied touch scanning signals, described touch-control sensing electrode is for voltage signal and the output of the described touch scanning signals that is coupled;
Described tft array substrate has and is positioned at described data signal line top and the first metal driving electrode between the pixel cell of adjacent columns and/or the first metal induction electrode; Described the first metal driving electrode is electrical connected with corresponding described touch-control drive electrode, and described the first metal induction electrode is electrical connected with corresponding described touch-control sensing electrode.
Preferably, each described first metal driving electrode is positioned at upper strata and/or the lower floor of described touch-control drive electrode;
Each the first metal induction electrode is positioned at upper strata and/or the lower floor of described touch-control sensing electrode.
Preferably, described tft array substrate also has the first transparency conductive electrode that is electrical connected with described the first metal induction electrode, and/or the second transparency conductive electrode that is electrical connected with described the first metal touch-control electrode.
Preferably, described tft array substrate has the pixel electrode that is positioned at described common electrode layer top, and the first transparency conductive electrode and/or the second transparency conductive electrode and described pixel electrode arrange and mutually insulated with layer.
Preferably, described tft array substrate has the signal line top that is arranged in described tft array substrate, and the second metal driving electrode between the pixel cell of adjacent lines and/or the second metal induction electrode; Described the second metal driving electrode is electrical connected with corresponding described touch-control drive electrode, and described the second metal induction electrode is electrical connected with corresponding described touch-control sensing electrode.
Preferably, each described touch-control drive electrode extends along the line direction of pixel cell, and each described touch-control sensing electrode extends along the column direction of pixel cell; Or,
Each described touch-control drive electrode extends along the column direction of pixel cell, and each described touch-control sensing electrode extends along the line direction of pixel cell.
Preferably, described touch-control drive electrode and described touch-control sensing electrode have strip shaped electric poles structure, Rhombus electrode structure or insert the finger electrode array configurations.
Preferably, also has public electrode at the gap location of described common electrode layer between described touch-control sensing electrode and described touch-control drive electrode, described public electrode and described touch-control sensing electrode and touch-control drive electrode mutually insulated.
A kind of display device that the utility model embodiment provides comprises the embedded touch-screen of condenser type that the utility model embodiment provides.
The beneficial effect of the utility model embodiment comprises:
The embedded touch-screen of a kind of condenser type and display device that the utility model embodiment provides, the common electrode layer of whole connection in tft array substrate is cut apart, form touch-control sensing electrode and the touch-control sensing electrode of mutually insulated, gap between subdivided gap between touch-control sensing electrode and touch-control drive electrode and the pixel cell of adjacent lines and adjacent columns is relative, touch-control drive electrode and touch-control sensing electrode are carried out the timesharing driving, to realize touch controllable function and Presentation Function.The touch-screen that provides due to the utility model embodiment is that the common electrode layer structure to tft array substrate changes to realize touch controllable function, therefore, on existing tft array substrate preparation technology's basis, do not need to increase extra technique and namely can be made into touch-screen, save production cost, improved production efficiency.And, owing to adopting timesharing to drive touch-control and Presentation Function, also can reduce the phase mutual interference, improve picture quality.
further, in the touch-screen that the utility model embodiment provides, be provided with the first metal driving electrode and/or the first metal induction electrode above data signal line and between the adjacent columns pixel cell, this the first metal driving electrode and the first metal induction electrode can block the subdivided gap that is positioned at the data signal line top between touch-control sensing electrode and touch-control drive electrode, the signal of avoiding loading on data signal line is delivered to the horizontal component of electric field of tft array substrate top by subdivided gap, affect the normal demonstration of liquid crystal, and the black matrix that is positioned at the color membrane substrates above data signal line is meticulous, can not block the liquid crystal of this part improper demonstration, the touch-screen that causes thus shows abnormal problem.
Description of drawings
Fig. 1 is the vertical view of tft array substrate in prior art;
The schematic diagram of public electrode layer pattern in the touch-screen that Fig. 2 a and Fig. 2 b provide for the utility model embodiment;
The structural representation of the subdivided gap in the touch-screen that Fig. 3 provides for the utility model embodiment between touch-control drive electrode and touch-control sensing electrode;
Fig. 4 a and Fig. 4 b are respectively the side view at the cutting gap place of the x direction between touch-control drive electrode and touch-control sensing electrode and y direction in touch-screen;
The schematic diagram of the first metal driving electrode and the first metal induction electrode and public electrode layer pattern in the touch-screen that Fig. 5 provides for the utility model embodiment;
The vertical view of tft array substrate in the touch-screen that Fig. 6 provides for the utility model embodiment;
Fig. 7 is along the side view at A-A place in Fig. 6;
The driving sequential schematic diagram of the embedded touch-screen of condenser type that Fig. 8 provides for the utility model embodiment.
Embodiment
At present, the lcd technology that can realize wide visual angle mainly contains plane internal switch (IPS, In-Plane Switch) technology and senior super dimension field switch (ADS, Advanced Super Dimension Switch) technology; Wherein, the electric field that the electric field that the ADS technology produces by gap electrode edge in same plane and gap electrode layer and plate electrode interlayer produce forms multi-dimensional electric field, make in liquid crystal cell between gap electrode, directly over electrode, all aligned liquid-crystal molecules can both produce rotation, thereby improved the liquid crystal work efficiency and increased light transmission efficiency.A senior super dimension switch technology can improve the picture quality of TFT-LCD product, has high resolving power, high permeability, low-power consumption, wide visual angle, high aperture, low aberration, without advantages such as water of compaction ripples (push Mura).H-ADS(high aperture-senior super dimension field switch) be a kind of important implementation of ADS technology.
The utility model embodiment just is being based on the ADS technology and the H-ADS technology has proposed the embedded touch screen structure of a kind of new condenser type.Below in conjunction with accompanying drawing, the embedded touch-screen of condenser type that the utility model embodiment is provided and the embodiment of display device are described in detail.
Below in conjunction with accompanying drawing, the embedded touch-screen of condenser type that the utility model embodiment is provided and the embodiment of display device are described in detail.
In accompanying drawing, each layer film thickness and shape do not reflect the true ratio of tft array substrate or color membrane substrates, and purpose is signal explanation the utility model content just.
The embedded touch-screen of the condenser type that the utility model embodiment provides specifically comprises: the tft array substrate with data signal line and common electrode layer, common electrode layer is positioned at the top of data signal line, be provided with in tft array substrate and be a plurality of pixel cells that matrix is arranged
Common electrode layer comprises touch-control sensing electrode and the touch-control drive electrode of mutually insulated, and the gap between the pixel cell of the subdivided gap between touch-control sensing electrode and touch-control drive electrode and adjacent lines and adjacent columns is relative; In the displaying time section, touch-control drive electrode and touch-control sensing electrode are applied common electrode signal; In the touch-control time period, the touch-control drive electrode is applied touch scanning signals, the touch-control sensing electrode is used for voltage signal and the output of coupling touch scanning signals;
Tft array substrate has above the data signal line of being positioned at, and the first metal driving electrode between the pixel cell of adjacent columns and/or the first metal induction electrode; The first metal driving electrode is electrical connected with corresponding touch-control drive electrode, and the first metal induction electrode is electrical connected with corresponding described touch-control sensing electrode.
In the embedded touch-screen of above-mentioned condenser type that the utility model embodiment provides, the common electrode layer 1 of whole connection in existing tft array substrate is as shown in Figure 1 cut apart, form touch-control sensing electrode and the touch-control drive electrode of mutually insulated, gap between subdivided gap between touch-control sensing electrode and touch-control drive electrode and the pixel cell of adjacent lines and adjacent columns is relative, touch-control drive electrode and touch-control sensing electrode are carried out the timesharing driving, to realize touch controllable function and Presentation Function.The touch-screen that provides due to the utility model embodiment is that the common electrode layer structure to tft array substrate changes to realize touch controllable function, therefore, on existing tft array substrate preparation technology's basis, do not need to increase extra technique and namely can be made into touch-screen, save production cost, improved production efficiency.
The below is described in detail the concrete structure of the common electrode layer of above-mentioned touch-screen.
Particularly, utilize touch-control sensing electrode that common electrode layer forms generally along the column direction wiring of the pixel cell of tft array substrate; The touch-control drive electrode is generally along the line direction wiring of the pixel cell of tft array substrate; Can certainly change both wiring directions according to the size of application device, be about to each touch-control drive electrode and be set to extend along the column direction of pixel cell, each touch-control sensing electrode is set to extend along the line direction of pixel cell, does not do restriction at this.
The below extends along the line direction of pixel cell with each touch-control drive electrode, and each touch-control sensing electrode extends to example along the column direction of pixel cell and describes.
Usually, the precision of touch-screen is usually at grade, can be according to the density of required touch-control accuracy selection touch-control drive electrode and touch-control sensing electrode and width to guarantee required touch-control precision, to be controlled at 5-7mm be good to the width of touch-control drive electrode and touch-control sensing electrode usually.And the precision of liquid crystal display is usually at micron order, and therefore, a general touch-control drive electrode and touch-control sensing electrode can cover the pixel cell of multirow or multiple row array base palte.The size of touch control unit of the touch-screen that in the utility model embodiment, the precision of indication refers to or the pixel cell of display screen.
particularly, touch-control drive electrode and the touch-control sensing electrode arranged in common electrode layer can have the strip shaped electric poles structure, Rhombus electrode structure or the slotting electrode array configurations (as shown in Fig. 2 a and Fig. 2 b) that refers to, connect up along the vertical direction in figure at the touch-control sensing electrode Rx shown in Fig. 2 a and Fig. 2 b, touch-control drive electrode Tx connects up along the horizontal direction in figure, because touch-control sensing electrode Rx and touch-control drive electrode Tx are arranging with layer, therefore, form mutually insulated between a plurality of touch-control driven element electrodes of a touch-control drive electrode Tx (in the slotting finger electrode structure as shown in Fig. 2 a by 6 touch-control driven element electrode Tx1a, Tx1b, Tx1c, Tx1d, Tx1e, Tx1f forms a touch-control drive electrode Tx1, 6 touch-control driven element electrode Tx2a, Tx2b, Tx2c, Tx2d, Tx2e, Tx2f forms a touch-control drive electrode Tx2, 6 touch-control driven element electrode Tx3a, Tx3b, Tx3c, Tx3d, Tx3e, Tx3f forms a touch-control drive electrode Tx3, form a touch-control drive electrode Tx3 by 4 touch-control driven element electrode Tx3a, Tx3b, Tx3c, Tx3d in slotting finger electrode structure as shown in Fig. 2 b, in like manner the structure of touch-control drive electrode Tx1 and Tx2 is identical with Tx3), after can forming each touch-control driven element electrode bridge joint of same touch-control drive electrode Tx by metal bridge, utilize a signal wire to input touch scanning signals to it, also can to each touch-control driven element electrode of forming same touch-control drive electrode respectively the signalization line it is inputted touch scanning signals, do not do restriction at this.
Preferably, when touch-control drive electrode and the design of the slotting finger of touch-control sensing electrode employing electrode array configurations, with respect to strip shaped electric poles structure and Rhombus electrode structure, can increase the Inductance and Capacitance between touch-control sensing electrode and touch-control drive electrode, thereby improve sensitivity and the accuracy of touch-control.
further, as shown in Fig. 2 a and Fig. 2 b, due to the precision of touch-screen usually at grade, and the precision of liquid crystal display is usually at micron order, therefore, when touch-control sensing electrode and touch-control drive electrode are set, can there be the gap of several row or a few row pixel cells between the two, like this, as shown in Fig. 2 b, can also have the public electrode (Vcom1 as shown in Fig. 2 b at the gap location of common electrode layer between touch-control sensing electrode and touch-control drive electrode, Vcom2, Vcom3, Vcom4, Vcom5, Vcom6, Vcom7), public electrode and touch-control sensing electrode and touch-control drive electrode mutually insulated, public electrode is the access common electrode signal when work, guarantee to show normally work at the pixel cell of public electrode corresponding region.
Particularly, when common electrode layer being divided into touch-control drive electrode and touch-control sensing electrode, can cut apart along the gap between the pixel cell of the gap between the pixel cell of adjacent lines and adjacent columns, as shown in Figure 3, namely the subdivided gap on common electrode layer comprises x direction (at the gap location between the pixel cell of adjacent lines) and y direction (gap location between the pixel cell of adjacent columns).As shown in Fig. 4 a, the black matrix (BM) of the x direction of the color membrane substrates corresponding with the subdivided gap of x direction is wider, generally more than 15um, if the subdivided gap of x direction is set according to the cutting width of 6um, when being positioned at signal that the signal line Gate of the subdivided gap below of x direction loads and seeing through this subdivided gap and have influence on the horizontal component of electric field of top, the black matrix of the x direction on color membrane substrates can block consequent demonstration abnormal occurrence, can not impact liquid crystal display.yet, as shown in Fig. 4 b, the black matrix (BM) of the y direction of the color membrane substrates corresponding with the subdivided gap of y direction is narrow, generally in the 6um left and right, even the subdivided gap of y direction is set according to the cutting width of 6um, when being positioned at signal that the data signal line Data of the subdivided gap below of y direction loads and seeing through this subdivided gap and have influence on the horizontal component of electric field of top, because color membrane substrates and tft array substrate have ± the 2um error box, the black matrix of the y direction on color membrane substrates can not block consequent demonstration abnormal occurrence fully, can cause touch-screen to show abnormal problem.
in the touch-screen that the utility model embodiment provides, as shown in Figure 5 and Figure 6, be provided with the first metal driving electrode b and/or the first metal induction electrode a above data signal line and between the adjacent columns pixel cell, this first metal driving electrode b and the first metal induction electrode a can block the subdivided gap that is positioned at the data signal line top between touch-control sensing electrode Rx and touch-control drive electrode Tx, it is the subdivided gap of y direction, the signal of avoiding loading on data signal line is delivered to the horizontal component of electric field of tft array substrate top by subdivided gap, affect the normal demonstration of liquid crystal, and the black matrix that is positioned at the color membrane substrates above data signal line is meticulous, can not block the liquid crystal of this part improper demonstration, the touch-screen that causes thus shows abnormal problem.
Particularly, each the first metal driving electrode can be positioned at upper strata and/or the lower floor of touch-control drive electrode, and direct and corresponding touch-control drive electrode is electrical connected; Each the first metal driving electrode also can be electrical connected with corresponding each touch-control drive electrode by via hole, does not do restriction at this.Similarly, each the first metal induction electrode can be positioned at upper strata and/or the lower floor of touch-control sensing electrode, and direct and corresponding touch-control sensing electrode is electrical connected; Each the first metal induction electrode also can be electrical connected with corresponding each touch-control sensing electrode by via hole, does not do restriction at this.
Further, because common electrode layer is generally made by the ITO material, and the resistance of ITO material is higher, by the first metal driving electrode of preparation of metals with after corresponding touch-control drive electrode is electrical connected, be equivalent to ITO electrode and a plurality of metallic resistance in parallel, can reduce to greatest extent the resistance of touch-control drive electrode like this, thus the signal to noise ratio (S/N ratio) when improving touch-control drive electrode transmission of signal.Equally, by the first metal induction electrode of preparation of metals with after corresponding touch-control sensing electrode is electrical connected, be equivalent to ITO electrode and a plurality of metallic resistance in parallel, so also can reduce to greatest extent the resistance of touch-control sensing electrode, thus the signal to noise ratio (S/N ratio) when improving touch-control sensing electrodes transfer signal.
Preferably, in order further to reduce the resistance of touch-control drive electrode and touch-control sensing electrode, can also be above tft array substrate be positioned at the signal line, and the second metal driving electrode and/or the second metal induction electrode are set between the pixel cell of adjacent lines, namely this second metal driving electrode and the second metal induction electrode have blocked the subdivided gap that is positioned at signal line top between touch-control sensing electrode and touch-control drive electrode, the i.e. subdivided gap of x direction; The second metal driving electrode is electrical connected with corresponding described touch-control drive electrode, and the second metal induction electrode is electrical connected with corresponding touch-control sensing electrode, to reduce the resistance of touch-control drive electrode and touch-control sensing electrode.
Further, tft array substrate can also arrange the first transparency conductive electrode that is electrical connected with the first metal induction electrode, and/or the second transparency conductive electrode that is electrical connected with the first metal touch-control electrode, the first transparency conductive electrode and the second transparency conductive electrode can be such as the electrode by the preparation of ITO material.Like this, the first transparency conductive electrode and the second transparency conductive electrode can further reduce data signal line and see through the subdivided gap of y direction to the impact of upper horizontal electric field.
In the specific implementation, if have the pixel electrode that is positioned at the common electrode layer top in tft array substrate, A-A place sectional view as Fig. 6 is shown in Figure 7, the first transparency conductive electrode c and/or the second transparency conductive electrode and pixel electrode d can be arranged and a mutually insulated with layer.Like this, do not need to increase extra preparation section when the preparation tft array substrate, only need to the figure of the first transparency conductive electrode c, the second transparency conductive electrode and pixel electrode d can be formed by a composition technique, preparation cost can be saved, the improving product added value.
Further, in the above-mentioned touch-screen that the utility model embodiment provides, the mode that touch-control and demonstration stage adopt timesharing to drive can integrate the chip of display driver and touch-control driving on the one hand, further reduces production costs; Timesharing drives and also can reduce the mutual interference mutually that shows with touch-control on the other hand, improves picture quality and touch-control accuracy.
Particularly, for example: in driving sequential chart as shown in Figure 8, touch-screen is shown that the time of each frame (V-sync) is divided into displaying time section (Display) and touch-control time period (Touch), for example in driving sequential chart shown in Figure 8, the time of demonstration one frame of touch-screen is 16.7ms, choose wherein 4ms as the touch-control time period, other 12.7ms is as the displaying time section, and can certainly be according to the processing power of IC chip suitable both durations of adjustment are not specifically limited at this.At displaying time section (Display), to every in touch-screen signal line Gate1, Gate2 ... Gaten applies scanning gate signal successively, data signal line Data is applied the GTG signal, correspondingly this moment, touch-control drive electrode Tx was as public electrode, the IC chip that is connected with touch-control drive electrode Tx provides constant common electrode signal to it, realizes crystal display.At touch-control time period (Touch), the IC chip that is connected with touch-control drive electrode Tx provides respectively touch scanning signals T1, T2 to each touch-control drive electrode Tx ... Tn, each touch-control sensing electrode Rx detects respectively touch-control sensing signal R1, R2 simultaneously ... Rm realizes touch controllable function.In the touch-control time period, every signal line in touch-screen and the input of data signal line no signal.
Based on same utility model design, the utility model embodiment also provides a kind of display device, comprise the embedded touch-screen of above-mentioned condenser type that the utility model embodiment provides, the enforcement of this display device can referring to the embodiment of the embedded touch-screen of above-mentioned condenser type, repeat part and repeat no more.
The embedded touch-screen of a kind of condenser type and display device that the utility model embodiment provides, the common electrode layer of whole connection in tft array substrate is cut apart, form touch-control sensing electrode and the touch-control drive electrode of mutually insulated, gap between subdivided gap between touch-control sensing electrode and touch-control drive electrode and the pixel cell of adjacent lines and adjacent columns is relative, touch-control drive electrode and touch-control sensing electrode are carried out the timesharing driving, to realize touch controllable function and Presentation Function.The touch-screen that provides due to the utility model embodiment is that the common electrode layer structure to tft array substrate changes to realize touch controllable function, therefore, on existing tft array substrate preparation technology's basis, do not need to increase extra technique and namely can be made into touch-screen, save production cost, improved production efficiency.And, owing to adopting timesharing to drive touch-control and Presentation Function, also can reduce the phase mutual interference, improve picture quality.
further, in the touch-screen that the utility model embodiment provides, be provided with the first metal driving electrode and/or the first metal induction electrode above data signal line and between the adjacent columns pixel cell, this the first metal driving electrode and the first metal induction electrode can block the subdivided gap that is positioned at the data signal line top between touch-control sensing electrode and touch-control drive electrode, the signal of avoiding loading on data signal line is delivered to the horizontal component of electric field of tft array substrate top by subdivided gap, affect the normal demonstration of liquid crystal, and the black matrix that is positioned at the color membrane substrates above data signal line is meticulous, can not block the liquid crystal of this part improper demonstration, the touch-screen that causes thus shows abnormal problem.
Obviously, those skilled in the art can carry out various changes and modification and not break away from spirit and scope of the present utility model the utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model also is intended to comprise these changes and modification interior.
Claims (9)
1. embedded touch-screen of condenser type, comprise the tft array substrate with data signal line and common electrode layer, described common electrode layer is positioned at the top of described data signal line, is provided with to be a plurality of pixel cells that matrix is arranged in described tft array substrate, it is characterized in that
Described common electrode layer comprises touch-control sensing electrode and the touch-control drive electrode of mutually insulated, and the gap between the pixel cell of the subdivided gap between described touch-control sensing electrode and described touch-control drive electrode and adjacent lines and adjacent columns is relative; In the displaying time section, described touch-control drive electrode and described touch-control sensing electrode are applied common electrode signal; In the touch-control time period, described touch-control drive electrode is applied touch scanning signals, described touch-control sensing electrode is for voltage signal and the output of the described touch scanning signals that is coupled;
Described tft array substrate has and is positioned at described data signal line top and the first metal driving electrode between the pixel cell of adjacent columns and/or the first metal induction electrode; Described the first metal driving electrode is electrical connected with corresponding described touch-control drive electrode, and described the first metal induction electrode is electrical connected with corresponding described touch-control sensing electrode.
2. touch-screen as claimed in claim 1, is characterized in that, each described the first metal driving electrode is positioned at upper strata and/or the lower floor of described touch-control drive electrode;
Each the first metal induction electrode is positioned at upper strata and/or the lower floor of described touch-control sensing electrode.
3. touch-screen as claimed in claim 1, it is characterized in that, described tft array substrate also has the first transparency conductive electrode that is electrical connected with described the first metal induction electrode, and/or the second transparency conductive electrode that is electrical connected with described the first metal touch-control electrode.
4. touch-screen as claimed in claim 3, it is characterized in that, described tft array substrate has the pixel electrode that is positioned at described common electrode layer top, and the first transparency conductive electrode and/or the second transparency conductive electrode and described pixel electrode arrange and mutually insulated with layer.
5. touch-screen as claimed in claim 1, it is characterized in that, described tft array substrate has the signal line top that is arranged in described tft array substrate, and the second metal driving electrode between the pixel cell of adjacent lines and/or the second metal induction electrode; Described the second metal driving electrode is electrical connected with corresponding described touch-control drive electrode, and described the second metal induction electrode is electrical connected with corresponding described touch-control sensing electrode.
6. as the described touch-screen of claim 1-5 any one, it is characterized in that, each described touch-control drive electrode extends along the line direction of pixel cell, and each described touch-control sensing electrode extends along the column direction of pixel cell; Or,
Each described touch-control drive electrode extends along the column direction of pixel cell, and each described touch-control sensing electrode extends along the line direction of pixel cell.
7. touch-screen as claimed in claim 6, is characterized in that, described touch-control drive electrode and described touch-control sensing electrode have strip shaped electric poles structure, Rhombus electrode structure or insert the finger electrode array configurations.
8. touch-screen as claimed in claim 7, it is characterized in that, also has public electrode at the gap location of described common electrode layer between described touch-control sensing electrode and described touch-control drive electrode, described public electrode and described touch-control sensing electrode and touch-control drive electrode mutually insulated.
9. a display device, is characterized in that, comprises as the embedded touch-screen of the described condenser type of claim 1-8 any one.
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| CN 201220689896 CN202976049U (en) | 2012-12-13 | 2012-12-13 | Capacitor type built-in touch screen and display device |
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| CN 201220689896 CN202976049U (en) | 2012-12-13 | 2012-12-13 | Capacitor type built-in touch screen and display device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103049156A (en) * | 2012-12-13 | 2013-04-17 | 北京京东方光电科技有限公司 | Capacitance type embedded touch screen and display device |
| CN103353803A (en) * | 2013-07-02 | 2013-10-16 | 华映视讯（吴江）有限公司 | Touch display panel and manufacturing method thereof |
| CN103926729A (en) * | 2013-12-31 | 2014-07-16 | 上海天马微电子有限公司 | Array substrate, color filter, touch display device and driving method of touch display device |
| CN104020909A (en) * | 2014-05-30 | 2014-09-03 | 京东方科技集团股份有限公司 | In cell touch panel and display device |
| CN104035640A (en) * | 2014-05-30 | 2014-09-10 | 京东方科技集团股份有限公司 | Embedded touch screen and display device |
| WO2015010376A1 (en) * | 2013-07-22 | 2015-01-29 | 京东方科技集团股份有限公司 | Array substrate, method for manufacturing same, touch panel and display device |
| TWI510988B (en) * | 2013-07-17 | 2015-12-01 | Chunghwa Picture Tubes Ltd | In-cell touch display panel |
| US9626014B2 (en) | 2013-06-07 | 2017-04-18 | Chunghwa Picture Tubes, Ltd. | Touch display panel and manufacturing method thereof |
| US9766761B2 (en) | 2014-05-30 | 2017-09-19 | Boe Technology Group Co., Ltd. | In-cell touch panel and display device |
| CN107256106A (en) * | 2017-07-26 | 2017-10-17 | 武汉天马微电子有限公司 | Array base palte, liquid crystal display panel, touch control display apparatus and touch-control driving method |
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2012
- 2012-12-13 CN CN 201220689896 patent/CN202976049U/en not_active Expired - Lifetime
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| CN104020909A (en) * | 2014-05-30 | 2014-09-03 | 京东方科技集团股份有限公司 | In cell touch panel and display device |
| CN104035640B (en) * | 2014-05-30 | 2017-10-27 | 京东方科技集团股份有限公司 | A kind of In-cell touch panel and display device |
| US9830029B2 (en) | 2014-05-30 | 2017-11-28 | Boe Technology Group Co., Ltd. | In-cell touch panel and display device |
| WO2015180318A1 (en) * | 2014-05-30 | 2015-12-03 | 京东方科技集团股份有限公司 | Embedded touchscreen and display apparatus |
| US10067614B2 (en) | 2014-05-30 | 2018-09-04 | Boe Technology Group Co., Ltd. | In-cell touch panel and display device |
| CN107256106A (en) * | 2017-07-26 | 2017-10-17 | 武汉天马微电子有限公司 | Array base palte, liquid crystal display panel, touch control display apparatus and touch-control driving method |
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