CN203376696U - Touch control display device - Google Patents
Touch control display device Download PDFInfo
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- CN203376696U CN203376696U CN201320326388.5U CN201320326388U CN203376696U CN 203376696 U CN203376696 U CN 203376696U CN 201320326388 U CN201320326388 U CN 201320326388U CN 203376696 U CN203376696 U CN 203376696U
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Abstract
The embodiment of the utility model provides a touch control display device. The touch control display device comprises a display touch screen and a display touch control circuit. The display touch screen comprises a first substrate, a second substrate, a liquid crystal layer and a plurality of pixel units, wherein the liquid crystal layer is arranged between the first substrate and the second substrate, and the display touch screen further comprises a plurality of common electrodes which are arranged into a two-dimensional array. The display touch control circuit comprises a display control circuit and a touch control circuit. The display touch control circuit is connected with the common electrodes through wires in the manners that at the displaying stage, the common electrodes are connected to a common electric level provided for the display control circuit; at the touch induction stage, the common electrodes are respectively connected to the touch control circuit to serve as touch induction electrodes. By means of the scheme provided by the embodiment, the thickness and weight of the display touch screen can be reduced, the optical loss can be reduced, and noise can be obviously lowered.
Description
Technical field
The utility model relates to the touch technology field, relates in particular to a kind of touch control display apparatus.
Background technology
Current, capacitive touch screen is widely used in various electronic products, has been penetrated into gradually the every field of people's work and life.The size of capacitive touch screen day by day increases, and from 3 inches to 6.1 inches of smart mobile phone, to 10 inches left and right of panel computer, the application of capacitive touch screen more extends to intelligent television etc.But the problems such as existing capacitive touch screen ubiquity interference free performance is poor, the scanning frame per second is low, volume is large and manufacturing process is complicated.
The utility model content
In view of this, disclosure embodiment provides a kind of touch control display apparatus, at least one among can overcoming the above problems.
The touch control display apparatus that disclosure embodiment provides comprises:
Show touch-screen, described demonstration touch-screen comprises first substrate, second substrate, is arranged at liquid crystal layer and a plurality of pixel cell between described first substrate and described second substrate, described demonstration touch-screen also comprises a plurality of public electrodes, and described a plurality of public electrodes are arranged in two-dimensional array; And
Show touch control circuit, described demonstration touch control circuit comprises display control circuit and touch control circuit, described demonstration touch control circuit is connected by wire as follows with described a plurality of public electrodes: in the demonstration stage, described a plurality of public electrodes are connected to the common level that offers described display control circuit; In the touch sensible stage, each among described a plurality of public electrodes is connected respectively to described touch control circuit, as the touch sensible electrode.
Preferably, described wire arrangements is at the same layer of described a plurality of public electrodes; Perhaps
Described wire arrangements, at the different layers of described a plurality of public electrodes, is connected with described a plurality of public electrodes by through hole.
Preferably, described wire arrangements, at the same layer of data line, is connected with described a plurality of public electrodes by through hole.
Preferably, described pixel cell comprises pixel electrode, and described wire arrangements, at the same layer of pixel electrode, is connected with described a plurality of public electrodes by through hole.
Preferably, described wire arrangements is under black matrix" (Black Matrix).
Preferably, single chips of the described demonstration touch control circuit described display control circuit that has been integrated and described touch control circuit; Perhaps
Described demonstration touch control circuit comprises the chip more than two or two, and described display control circuit and described touch control circuit are provided by different chips; Perhaps
Described demonstration touch control circuit comprises the chip more than two or two, and each chip is for controlling the corresponding part of described demonstration touch-screen zone.
Preferably, described demonstration touch control circuit chip is tied on described first substrate or second substrate in glass flip chip (Chip-on-Glass) mode.
Preferably, described display control circuit chip and described touch control circuit chip are tied on described first substrate or second substrate in glass flip chip (Chip-on-Glass) mode.
Preferably, described touch control circuit is configured to detect the self-capacitance of each public electrode.
Preferably, described touch control circuit comprises signal driver/receiving element, for driving described a plurality of public electrode, and receives the sensed data from described a plurality of public electrodes; And signal processing unit, for according to described sensed data, determining touch location,
Wherein said signal driver/receiving element is configured to, for each public electrode, when driving described public electrode, drive periphery according to the signal that drives current public electrode or remaining public electrode; Perhaps, for each public electrode, when driving described public electrode, according to the signal that drives current public electrode, carry out driving data lines.
Preferably, described touch control circuit is configured to determine touch location according to two-dimentional capacitance variations array.
Preferably, described demonstration touch-screen has plane conversion (In-Plane Switching) structure or boundary electric field conversion (Fringe Field Switching) structure or twisted-nematic (Twisted Nematic) structure.
Preferably, the shape of described public electrode is regular polygon; Perhaps
The shape of described public electrode is strip; Perhaps
The shape of described public electrode is circular; Perhaps
The shape of described public electrode is oval.
On the edge of described public electrode, sawtooth can be arranged.
Preferably, the material of described a plurality of public electrodes is metal oxides, as tin indium oxide (ITO) or Graphene.
Preferably, each pixel cell of described demonstration touch-screen comprises thin film transistor (TFT), and the source electrode of each thin film transistor (TFT) provides driving circuit, and described driving circuit drives described thin film transistor (TFT) by data line.
Preferably, described touch control display apparatus comprises a plurality of touch control circuits, and each touch control circuit connects the corresponding a part of public electrode among described a plurality of public electrodes.
Preferably, the clock synchronous of each touch control circuit; Perhaps
Each touch control circuit time-sharing work.
Scheme according to disclosure embodiment, public electrode is multiplexed with the touch sensible electrode, compared with prior art at least reduced by a touch sensible electrode layer, thereby the thickness and the weight that show touch-screen have been reduced, reduce the optical loss that extra touch sensible electrode layer causes, and can save material and manufacturing cost.Further, in the demonstration touch-screen provided at disclosure embodiment, the touch sensible electrode (, the public electrode in touch sensible stage) be arranged in two-dimensional array, do not interfere with each other between electrode, can not cause the stack of noise, therefore significantly reduce noise, improved signal to noise ratio (S/N ratio).
The accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in disclosure embodiment, the accompanying drawing used in below embodiment being described is briefly described.Obviously, the accompanying drawing of below introducing is only embodiment more of the present utility model, for those skilled in the art, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 (a) and (b) are the side schematic views according to the touch control display apparatus of disclosure embodiment mono-;
Fig. 1 (c) shows the planimetric map according to the common electrode layer of disclosure embodiment mono-;
Fig. 1 (d) shows the example according to the display control circuit of the touch control display apparatus of disclosure embodiment mono-and touch control circuit;
Fig. 1 (e) is the demonstration touch control circuit schematic diagram according to the touch control display apparatus of disclosure embodiment mono-;
Fig. 2 (a) is the side schematic view according to the touch control display apparatus of disclosure embodiment bis-;
Fig. 2 (b) shows the planimetric map according to the common electrode layer of disclosure embodiment bis-;
Fig. 3 shows the example according to the harness wiring of disclosure embodiment bis-;
Fig. 4 shows the example according to the harness wiring of disclosure embodiment tri-;
Fig. 5 shows the example according to the harness wiring of disclosure embodiment tetra-;
Fig. 6 (a) and (b) show the example according to the harness wiring of disclosure embodiment five;
Fig. 7 is the side schematic view according to the touch control display apparatus of disclosure embodiment six;
Fig. 8 shows the example according to the harness wiring of disclosure embodiment six;
Fig. 9 shows the example according to the harness wiring of disclosure embodiment seven;
Figure 10 (a) and (b) show the touch control display apparatus according to disclosure embodiment eight.
Embodiment
For purpose of the present disclosure, feature and advantage can more be become apparent, below in conjunction with the accompanying drawing in disclosure embodiment, the technical scheme of disclosure embodiment is described.Obviously, described embodiment is only a part of embodiment of the present utility model.Based on disclosure embodiment, any other embodiment that those skilled in the art obtain under the prerequisite of not paying creative work, should belong to protection domain of the present utility model.For ease of explanation, mean that the sectional view of structure is disobeyed general ratio and done local the amplification.And accompanying drawing is exemplary, it should not limit protection domain of the present utility model.The three-dimensional dimension that in actual fabrication, should comprise in addition, length, width and the degree of depth.
Embodiment mono-
Disclosure embodiment mono-provides a kind of touch control display apparatus, comprising:
Show touch-screen, described demonstration touch-screen comprises first substrate 11, second substrate 13, is arranged at liquid crystal layer 15 and a plurality of pixel cell between described first substrate and described second substrate, described demonstration touch-screen also comprises a plurality of public electrodes 17, and described a plurality of public electrodes are arranged in two-dimensional array; And
Show touch control circuit, described demonstration touch control circuit comprises display control circuit and touch control circuit, described demonstration touch control circuit is connected by wire as follows with described a plurality of public electrodes: in the demonstration stage, described a plurality of public electrodes are connected to the common level that offers described display control circuit; In the touch sensible stage, each among described a plurality of public electrodes is connected respectively to described touch control circuit, as the touch sensible electrode.
Described demonstration touch-screen can have plane conversion (In-Plane Switching is called for short IPS) structure or boundary electric field conversion (Fringe Field Switching is called for short FFS) structure or twisted-nematic (Twisted Nematic is called for short TN) structure.
Fig. 1 (a) is the side schematic view according to an example of the touch control display apparatus of disclosure embodiment mono-.This touch control display apparatus can have IPS or FFS structure.
Fig. 1 (b) is the side schematic view according to another example of the touch control display apparatus of disclosure embodiment mono-.This touch control display apparatus can have the TN structure.
Fig. 1 (c) shows the example according to the touch control display apparatus common electrode layer of disclosure embodiment mono-.The shape that it will be understood by those skilled in the art that described public electrode can be circular, ellipse, triangle, strip, or square and other regular polygons.In addition, on the edge of described public electrode, sawtooth can be arranged.Preferably, the material of described a plurality of public electrodes is that metal oxide is as tin indium oxide (ITO) or Graphene.
Fig. 1 (d) shows the example according to the display control circuit of the touch control display apparatus of disclosure embodiment mono-and touch control circuit.In this example, this touch control display apparatus can be connected to main frame by flexible PCB.As shown in Figure 1 (d) shows, display control circuit and touch control circuit are two independently chips, described display control circuit is wired to data line and the row control line of touch control display apparatus liquid-crystal display section, described touch control circuit is wired to the touch sensible electrode (public electrode) of touch sensible part, demonstration by touch control circuit inside/touch handover module, make in the demonstration stage, described a plurality of public electrodes are connected to the common level that offers described display control circuit; In the touch sensible stage, each among described a plurality of public electrodes is connected respectively to described touch control circuit, as the touch sensible electrode.
Fig. 1 (e) shows another example according to the demonstration touch control circuit of the touch control display apparatus of disclosure embodiment mono-.In this example, this touch control display apparatus can be connected to main frame by flexible PCB.As shown in Fig. 1 (e), described demonstration touch control circuit is single chips, described demonstration touch control circuit connects the data line of liquid-crystal display section and the touch sensible electrode (public electrode) of row control line and touch sensible part, demonstration by showing touch control circuit inside/touch handover module, make in the demonstration stage, described a plurality of public electrodes are connected to the common level that offers described display control circuit; In the touch sensible stage, each among described a plurality of public electrodes is connected respectively to described touch control circuit, as the touch sensible electrode.
In the demonstration stage, public electrode is a part that shows the demonstration module of touch-screen, driven by common level (Vcom), form from different pixel cells the electric field of crossing over the liquid crystal material of zones of different on screen, thereby control the light throughput of each pixel cell.
Preferably, pixel cell comprises pixel transistor and pixel electrode.Show module for colour, each pixel cell generally comprises three sub-pixel unit, corresponds respectively to redness, green and blue, and each sub-pixel unit comprises a pixel transistor and a pixel electrode.
Preferably, described pixel transistor is thin film transistor (TFT) (TFT).
In the touch sensible stage, public electrode is multiplexed with the touch sensible electrode, the touch for induction to screen.The electric capacity of public electrode changes when touch-screen is touched.
Preferably, determine touch location by the self-capacitance that detects each public electrode.As an example, the self-capacitance of public electrode can be its ground capacitance.
In the demonstration touch-screen of prior art, the touch sensible electrode is independent of the demonstration module, shows that touch-screen is the stack of touch-screen and display screen.And according to the scheme of disclosure embodiment, public electrode is multiplexed with the touch sensible electrode, compared with prior art at least reduced by a touch sensible electrode layer, thereby the thickness and the weight that show touch-screen have been reduced, reduce the optical loss that extra touch sensible electrode layer causes, and can save material and manufacturing cost.In addition, the scheme of disclosure embodiment has also reduced in the prior art touch sensible electrode and has shown the electrical Interference between module.
Further, in the demonstration touch-screen of prior art, the touch sensible electrode is comprised of column electrode and row electrode, and the noise on every row or column can superpose.For example, a plurality of fingers are put into same row or column, and the power supply noise of each finger induction can superpose on same row or column.Point more, the stack noise larger.And, in the demonstration touch-screen provided at disclosure embodiment, touch sensible electrode (that is, the public electrode in touch sensible stage) is arranged in two-dimensional array, each electrode is a unit in array, between unit, does not interfere with each other.Every row or column comprises different matrix units, can not cause the stack of noise.Therefore, significantly reduce the amplitude of maximum noise according to the touch control display apparatus of disclosure embodiment, improved signal to noise ratio (S/N ratio).
Preferably, touch control circuit is configured to detect the self-capacitance of each public electrode.As an example, the self-capacitance of public electrode can be the ground capacitance of this public electrode.
For each public electrode, described touch control circuit can be when driving this public electrode, drive periphery according to the signal that drives current public electrode or remaining public electrode.In addition, described touch control circuit can also, when driving this public electrode, carry out driving data lines according to the signal that drives current public electrode.Can reduce like this voltage difference between detected electrode and non-detecting electrode, the falseness that is conducive to reduce the electric capacity of detected electrode and take precautions against water droplet formation touches.
Alternatively, described touch control circuit comprises signal driver/receiving element, for driving each public electrode, and receives the sensed data from each public electrode; And signal processing unit, for according to described sensed data, determining touch location.Particularly, described signal driver/receiving element can be configured to, for each public electrode, when driving this public electrode, drive periphery according to the signal that drives current public electrode or remaining public electrode.In addition, described signal driver/receiving element can also be configured to, and for each public electrode, when driving this public electrode, according to the signal that drives current public electrode, carrys out driving data lines.
Preferably, described touch control circuit is configured to determine touch location according to two-dimentional capacitance variations array.
In addition, can while or each public electrode of grouping driving.That is, all or public electrode part are detected together.
In the prior art, because the touch sensible electrode is comprised of column electrode and row electrode, adopted scan mode line by line, the touch of every frame is very long detection time.This shortcoming especially is unfavorable for embedded (In-Cell) touch-screen.In order to reduce when display screen and touch-screen are worked, influence each other, during display screen work, touch-screen quits work; During touch-screen work, display screen quits work.For example, frequency of operation is that 60Hz(is every frame 16.7ms) In-Cell screen usually need reading scan time of 10-12ms, leave that to touch the sweep time of detecting very short for, so existing In-Cell screen signal to noise ratio (S/N ratio) is lower.And, in the touch control display apparatus provided at disclosure embodiment, each electrode is connected to the touch detection chip, by the mode of parallel scan, only need in theory prior art to detect the time of a line, can reach original signal to noise ratio (S/N ratio).For example, the In-Cell touch-screen of 16 row 28 row, be T the detection time of supposing every row, be 16T the sweep time that existing structure needs.And the structure that adopts disclosure embodiment to provide, the shortest touch of every frame only has 1T detection time.
Described demonstration touch control circuit can be configured to circulation and carries out first step, and described first step comprises: described display control circuit scans a frame, and then described touch control circuit scans a frame.That is, first carry out a frame reading scan, then carry out a frame touch and detect scanning, so repeatedly.
Perhaps, described demonstration touch control circuit is configured to circulation and carries out second step, and described second step comprises: described touch control circuit scans a frame, and then described display control circuit scans a frame.That is, first carry out a frame and touch detection scanning, then carry out a frame reading scan, so repeatedly.
Further, the reading scan of every frame can be divided into to multistage, every section all once touches detection scanning, makes to touch the detection frequency and reaches many times of display frequency, thereby improve the frame per second that touch detects.That is to say, every frame scan segmentation of described display control circuit is carried out; Before every frame scan of described display control circuit, intersegmental and after, described touch control circuit all carries out a frame scan.
Embodiment bis-
Fig. 2 (a) is the side schematic view according to an example of the touch control display apparatus of disclosure embodiment bis-.
As shown in Figure 2 (a) shows, this touch control display apparatus comprises first substrate 21, second substrate 23, is sandwiched in liquid crystal layer 25, common electrode layer 27, tft layer and colorized optical filtering (CF) layer between two substrates.Public electrode is placed on tft layer the same side with respect to liquid crystal layer.Alternatively, touch control display apparatus also comprises the second polarizing layer, the first polarizing layer and protective seam (COVER LENS).As an example, touch control display apparatus has the IPS structure.Touch control display apparatus in the present embodiment also can have the FFS structure.
Be formed with a plurality of pixel cells on tft layer.
Be formed with a plurality of public electrodes on common electrode layer, described a plurality of public electrodes are arranged in two-dimensional array, for example rectangular array.Fig. 2 (b) shows the planimetric map according to an example of the common electrode layer of disclosure embodiment bis-.
Touch control display apparatus also comprises the demonstration touch control circuit.Described demonstration touch control circuit comprises display control circuit and touch control circuit, described demonstration touch control circuit is connected by wire as follows with described a plurality of public electrodes: in the demonstration stage, described a plurality of public electrodes are connected to the common level that offers described display control circuit; In the touch sensible stage, each among described a plurality of public electrodes is connected respectively to described touch control circuit, as the touch sensible electrode.
As shown in Fig. 2 (b), as an example, common electrode layer comprises a plurality of public electrodes (touch sensible electrode) 1101-1120.As an example, Fig. 2 (b) also shows flexible circuit board (FPC), shows touch control circuit 29 and main frame.In this example, this touch control display apparatus can be connected to main frame by flexible PCB.Preferably, the material of public electrode is metal oxide, as tin indium oxide (ITO) or Graphene.
The shape of public electrode can be square, rectangle, strip, rhombus or any other polygon, can be also triangle, circle or oval.In addition, on the edge of described public electrode, sawtooth can be arranged.The pattern of each public electrode can be consistent, can be also inconsistent.As an example, in Fig. 2 (b), the shape of each public electrode is square (for example length and width are 5mm), is arranged in rectangular array.
In the present embodiment, public electrode 1101-1120 is connected to the wire 501-520 that shows touch control circuit and is arranged in common electrode layer.For example, common electrode layer has 101He second side, first side 102, the wire 501 that connects public electrode 1101 extends to first side 101 along direction Y in common electrode layer, the wire 502 that connects public electrode 1102 extends to first side 101 along direction Y in common electrode layer, by that analogy.The project organization that wire 501-520 is arranged in to common electrode layer is simple, saves cost.
Fig. 3 shows the example according to the harness wiring of disclosure embodiment bis-.
The material of wire 501-520 can be metal oxide, as tin indium oxide (ITO) or Graphene, or metal.Preferably, wire 501-520 be arranged in the same layer of public electrode and be positioned at black matrix" (Black Matrix) under.Wire arrangements can be avoided below black matrix" to possible reflective of the etched vestige of tin indium oxide and plain conductor.
Preferably, the demonstration touch control circuit chip 29 in Fig. 2 (b) is tied on substrate by glass flip chip (Chip-on-Glass is called for short COG) mode.For for example screen of 5 inch, suppose that each public electrode (comprising corresponding cabling) accounts for 5mm * 5mm, need 264 public electrodes, adopt the demonstration touch control circuit chip 29 of traditional packaged type at least to need 264 pins, can only surface mount to printed circuit board (PCB), the non-constant width of flexible circuit board needed, so yields is low, cost is high.And, by the COG mode, will show that touch control circuit chip 29 is directly bound on substrate, and can improve yields, reduce packaging cost, also reduced the overall volume of touch control display apparatus simultaneously.
Alternatively, show that touch control circuit 29 is connected with main frame by flexible circuit board.Main frame is communicated by letter with showing touch control circuit 29 by flexible circuit board.
Generally speaking, the capped area direct ratio of the capacitance change of touch sensible electrode and this electrode when occurring to touch, therefore, the capacitance change of each touch sensible electrode has reflected the size of capped area.As an example, can adopt centroid algorithm, determine touch location according to two-dimentional capacitance variations array.
The single chips that shows touch control circuit 29 display control circuit that can be integrated and touch control circuit.Perhaps, show that touch control circuit 29 can comprise the chip more than two or two, display control circuit and touch control circuit are provided by different chips.
Preferably, in the touch control display apparatus of disclosure embodiment, the source electrode of each thin film transistor (TFT) provides driving circuit, and described driving circuit drives described thin film transistor (TFT) by data line.Can change the Electric Field Distribution in liquid crystal layer by the source voltage of adjusting thin film transistor (TFT) like this, in order to reduce the self-capacitance of electrode, the sensitivity that improves touch-control.
Embodiment tri-
Also there is IPS structure or FFS structure according to the touch control display apparatus of the present embodiment.The difference of the present embodiment and embodiment bis-is the position of harness wiring.Fig. 4 shows the example according to the harness wiring of disclosure embodiment tri-, and wire 501-503 is arranged in another layer for public electrode.Particularly, wire arrangements is at the same layer of pixel electrode, and wire can connect respectively each public electrode by through hole.
The material of wire 501-503 can be metal oxide, as tin indium oxide (ITO) or Graphene, or metal.Preferably, wire 501-503 be arranged in black matrix" under.Wire arrangements can be avoided below black matrix" to possible reflective of the etched vestige of tin indium oxide and plain conductor.
The description of other parts of the present embodiment please refer to embodiment bis-, no longer repeats here.
Embodiment tetra-
The difference of the present embodiment and embodiment tri-is the position of harness wiring.Fig. 5 shows the example according to the harness wiring of disclosure embodiment tetra-, and wire 501-503 is arranged in another layer for public electrode.Particularly, wire arrangements is at independent one deck, and wire can connect respectively each public electrode by through hole.
The description of other parts of the present embodiment please refer to embodiment tri-, no longer repeats here.
Embodiment five
The difference of the present embodiment and embodiment tetra-is the position of harness wiring.Fig. 6 (a) and Fig. 6 (b) show the example according to the harness wiring of disclosure embodiment five, and wire 501-503 is arranged in another layer for public electrode.Particularly, wire arrangements is at the same layer of data line, data line layer shown in Fig. 6 (a) be positioned at tft array below, and data line layer shown in Fig. 6 (b) be positioned at tft array above.Wire can connect respectively each public electrode by through hole.
The description of other parts of the present embodiment please refer to embodiment tetra-, no longer repeats here.
Embodiment six
Fig. 7 is the side schematic view according to the touch control display apparatus of disclosure embodiment six.As shown in Figure 7 (a), touch control display apparatus comprises first substrate 61, second substrate 63, is sandwiched in liquid crystal layer 65, common electrode layer 67, tft layer and chromatic filter layer between two substrates.Public electrode is placed on chromatic filter layer the same side with respect to liquid crystal layer.Alternatively, touch control display apparatus also comprises the second polarizing layer, the first polarizing layer and protective seam (COVER LENS).As an example, touch control display apparatus has the TN structure.
Be formed with a plurality of pixel cells on tft layer.Be formed with a plurality of public electrodes on common electrode layer, described a plurality of public electrodes are arranged in two-dimensional array.
Touch control display apparatus also comprises the demonstration touch control circuit.Described demonstration touch control circuit comprises display control circuit and touch control circuit, described demonstration touch control circuit is connected by wire as follows with described a plurality of public electrodes: in the demonstration stage, described a plurality of public electrodes are connected to the common level that offers described display control circuit; In the touch sensible stage, each among described a plurality of public electrodes is connected respectively to described touch control circuit, as the touch sensible electrode.
The touch control circuit chip can adopt the COG mode to be tied on substrate.
The planimetric map of the common electrode layer of the present embodiment can be same or similar with embodiment bis-.As shown in Fig. 2 (b), common electrode layer comprises a plurality of public electrodes (touch sensible electrode).
Fig. 8 shows the example according to the harness wiring of disclosure embodiment six.
In the present embodiment, public electrode 1101-1120 is connected to the wire 501-520 that shows touch control circuit and is arranged in common electrode layer.For example, common electrode layer has 101He second side, first side 102, the wire 501 that connects public electrode 1101 extends to first side 101 along direction Y in common electrode layer, the wire 502 that connects public electrode 1102 extends to first side 101 along direction Y in common electrode layer, by that analogy.
The description of other parts of the present embodiment please refer to embodiment bis-, no longer repeats here.
Embodiment seven
Also there is the TN structure according to the touch control display apparatus of the present embodiment.The difference of the present embodiment and embodiment six is the position of harness wiring.Fig. 9 shows the example according to the harness wiring of disclosure embodiment seven, and wire 501-503 is arranged in another layer for public electrode.Particularly, wire arrangements is at independent one deck, and wire can connect respectively each public electrode by through hole.
The description of other parts of the present embodiment please refer to embodiment six, no longer repeats here.
Embodiment eight
Figure 10 (a) shows the touch control display apparatus according to disclosure embodiment eight.The difference of the present embodiment and previous embodiment is, it shows that touch-control chip comprises the chip more than two or two, and each chip is for controlling the corresponding part of described demonstration touch-screen zone.
As an example, common electrode layer is divided into a plurality of subregions, and every sub regions comprises a plurality of public electrodes that are arranged in two-dimensional array, respectively be connected one and show that the touch control chip is connected.
Each shows that the touch-control chip can clock synchronous.Perhaps, each shows that the touch-control chip can time-sharing work.
As shown in Figure 10 (a) shows, common electrode layer comprises a plurality of subregions 301～306, and every sub regions comprises a plurality of public electrodes.The shape of public electrode is square, rhombus or other polygons, or triangle, circle or oval.In addition, on the edge of described public electrode, sawtooth can be arranged.For every sub regions, the pattern of each public electrode can be consistent, can be also inconsistent.Preferably, the material of public electrode is metal oxide, as tin indium oxide (ITO) or Graphene, or the conductive material such as metal.
For every sub regions, each public electrode is wired to respectively one of its corresponding demonstration touch-control chip 1-6.Show that touch-control chip 1-6 can be tied on first substrate or second substrate by the COG mode.
Show that touch-control chip 1-6 can be connected to the communication bus link by communication bus 700, the communication bus link can be connected to main frame through flexible circuit board 13.Preferably, communication bus 700 is arranged in the outer non-transmission region of induction region, can be metal oxide as tin indium oxide (ITO) line or Graphene line, can be also metal wire.
Figure 10 (b) shows another touch control display apparatus according to disclosure embodiment seven, the difference of the described embodiment of the present embodiment and Figure 10 (a) is, it drives induction module to comprise the chip more than two or two, and each chip is for controlling the corresponding part of described demonstration touch-screen zone.
As an example, common electrode layer is divided into a plurality of subregions, and every sub regions comprises a plurality of public electrodes that are arranged in two-dimensional array, with one, drives induction module to be connected respectively.
Each drives the induction module can clock synchronous.Perhaps, each drives the induction module can time-sharing work.
As shown in Figure 10 (b), common electrode layer comprises a plurality of subregions 301～306, and every sub regions comprises a plurality of public electrodes.The shape of public electrode is square, rhombus or other polygons, or triangle, circle or oval.On the edge of described public electrode, sawtooth can be arranged.For every sub regions, the pattern of each public electrode can be consistent, can be also inconsistent.Preferably, the material of public electrode is that metal oxide is as tin indium oxide (ITO) or Graphene.
For every sub regions, each public electrode is wired to respectively one of its corresponding driving induction module 1-6.Drive induction module 1-6 to be tied on substrate by the COG mode.
Drive induction module 1-6 to be connected to data by communication bus 700 and process and communication module, data are processed and communication module can be connected to main frame through flexible circuit board 13.Preferably, communication bus 700 is arranged in the outer non-transmission region of induction region, can be metal oxide as tin indium oxide (ITO) line or Graphene line, can be also metal wire.
The present embodiment is particularly useful for the large scale screen.Describedly show more than two or two that the touch control chip can scan contact panel simultaneously, thereby better image capture rate is provided.
What in this instructions, each embodiment stressed is the difference of other embodiment, same or analogous part reference mutually between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make those skilled in the art can realize or use the utility model.Multiple modification to these embodiment will be apparent for a person skilled in the art, and General Principle as defined herein can be in the situation that do not break away from scope of the present utility model, realization in other embodiments.Therefore, the utility model should not be restricted to disclosed these embodiment, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (17)
1. a touch control display apparatus, is characterized in that, comprising:
Show touch-screen, described demonstration touch-screen comprises first substrate, second substrate, is arranged at liquid crystal layer and a plurality of pixel cell between described first substrate and described second substrate, described demonstration touch-screen also comprises a plurality of public electrodes, and described a plurality of public electrodes are arranged in two-dimensional array; And
Show touch control circuit, described demonstration touch control circuit comprises display control circuit and touch control circuit, described demonstration touch control circuit is connected by wire as follows with described a plurality of public electrodes: in the demonstration stage, described a plurality of public electrodes are connected to the common level that offers described display control circuit; In the touch sensible stage, each among described a plurality of public electrodes is connected respectively to described touch control circuit, as the touch sensible electrode.
2. touch control display apparatus as claimed in claim 1, is characterized in that,
Described wire arrangements is at the same layer of described a plurality of public electrodes; Perhaps
Described wire arrangements, at the different layers of described a plurality of public electrodes, is connected with described a plurality of public electrodes by through hole.
3. touch control display apparatus as claimed in claim 1, is characterized in that,
Described wire arrangements, at the same layer of data line, is connected with described a plurality of public electrodes by through hole.
4. touch control display apparatus as claimed in claim 1, is characterized in that,
Described pixel cell comprises pixel electrode, and described wire arrangements, at the same layer of described pixel electrode, is connected with described a plurality of public electrodes by through hole.
5. touch control display apparatus as claimed in claim 1, is characterized in that,
Described wire arrangements is under black matrix" (Black Matrix).
6. touch control display apparatus as claimed in claim 1, is characterized in that,
Single chips of the described demonstration touch control circuit described display control circuit that has been integrated and described touch control circuit; Perhaps
Described demonstration touch control circuit comprises the chip more than two or two, and described display control circuit and described touch control circuit are provided by different chips; Perhaps
Described demonstration touch control circuit comprises the chip more than two or two, and each chip is for controlling the corresponding part of described demonstration touch-screen zone.
7. touch control display apparatus as claimed in claim 6, is characterized in that,
Described demonstration touch control circuit chip is tied on described first substrate or second substrate in glass flip chip (Chip-on-Glass) mode; Perhaps
Described display control circuit chip and described touch control circuit chip are tied on described first substrate or second substrate in glass flip chip (Chip-on-Glass) mode.
8. touch control display apparatus as claimed in claim 1, is characterized in that,
Described touch control circuit is configured to detect the self-capacitance of each public electrode.
9. touch control display apparatus as claimed in claim 8, is characterized in that,
Described touch control circuit comprises signal driver/receiving element, for driving described a plurality of public electrode, and receives the sensed data from described a plurality of public electrodes; And signal processing unit, for according to described sensed data, determining touch location,
Wherein said signal driver/receiving element is configured to, for each public electrode, when driving described public electrode, drive periphery according to the signal that drives current public electrode or remaining public electrode; Perhaps, for each public electrode, when driving described public electrode, according to the signal that drives current public electrode, carry out driving data lines.
10. touch control display apparatus as claimed in claim 9, is characterized in that,
Described touch control circuit is configured to:
According to the signal that is applied to described public electrode, the while driving data lines.
11. touch control display apparatus as claimed in claim 8, is characterized in that, described touch control circuit is configured to determine touch location according to two-dimentional capacitance variations array.
12. touch control display apparatus as claimed in claim 1, it is characterized in that, described demonstration touch-screen has plane conversion (In-Plane Switching) structure or boundary electric field conversion (Fringe Field Switching) structure or twisted-nematic (Twisted Nematic) structure.
13. touch control display apparatus as claimed in claim 1, is characterized in that,
The shape of described public electrode is regular polygon; Perhaps
The shape of described public electrode is strip; Perhaps
The shape of described public electrode is circular; Perhaps
The shape of described public electrode is oval.
14. touch control display apparatus as claimed in claim 1, is characterized in that,
On the edge of described public electrode, sawtooth is arranged.
15. touch control display apparatus as claimed in claim 1, it is characterized in that, each pixel cell of described demonstration touch-screen comprises thin film transistor (TFT) (TFT), and the source electrode of each thin film transistor (TFT) provides driving circuit, and described driving circuit drives described thin film transistor (TFT) by data line.
16. touch control display apparatus as claimed in claim 1, is characterized in that, described touch control display apparatus comprises a plurality of touch control circuits, and each touch control circuit connects the corresponding a part of public electrode among described a plurality of public electrodes.
17. touch control display apparatus as claimed in claim 16, is characterized in that, the clock synchronous of each touch control circuit; Perhaps
Each touch control circuit time-sharing work.
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| CN201320326388.5U CN203376696U (en) | 2013-06-06 | 2013-06-06 | Touch control display device |
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| CN201320326388.5U CN203376696U (en) | 2013-06-06 | 2013-06-06 | Touch control display device |
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| CN203376696U true CN203376696U (en) | 2014-01-01 |
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| CN103279245A (en) * | 2013-06-06 | 2013-09-04 | 敦泰科技有限公司 | Touch display device |
| CN104503647A (en) * | 2014-12-31 | 2015-04-08 | 京东方科技集团股份有限公司 | Base plate of touch display screen and manufacturing method thereof, touch screen and display device |
| CN104598080A (en) * | 2015-02-13 | 2015-05-06 | 重庆京东方光电科技有限公司 | Touch-control display panel and driving method and display device thereof |
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| CN104598080B (en) * | 2015-02-13 | 2019-02-26 | 重庆京东方光电科技有限公司 | Touch-control display panel and its driving method, display device |
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