CN104636015A - Touch display device - Google Patents
Touch display device Download PDFInfo
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- CN104636015A CN104636015A CN201510016402.5A CN201510016402A CN104636015A CN 104636015 A CN104636015 A CN 104636015A CN 201510016402 A CN201510016402 A CN 201510016402A CN 104636015 A CN104636015 A CN 104636015A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- Position Input By Displaying (AREA)
Abstract
The invention provides a touch display device. The touch display device comprises a thin-film transistor substrate, a color filter substrate, a liquid crystal layer located between the thin-film transistor substrate and the color filter substrate, multiple touch drive electrodes and multiple touch induction electrodes. The thin-film transistor substrate comprises a first substrate body, multiple parallel scan lines and multiple parallel data lines, wherein the parallel scan lines and the parallel data lines are arranged on the surface, facing the liquid crystal layer, of the first substrate body, and the parallel scan lines and the data lines intersect in an insulated mode, so that multiple pixel units are defined. The color filter substrate comprises a second substrate body and a flat layer arranged on the surface, facing the liquid crystal layer, of the second substrate body. The touch drive electrodes are arranged on the first substrate. The touch induction electrodes are arranged on the surface of the flat layer of the color filter substrate. Liquid crystal molecules in the liquid crystal layer are negative liquid crystal. The touch display device solves the optical problems of light leakage, ripples and the like, the width of a black matrix does not need to be increased, the apertures opening ratio is increased, and cost is reduced.
Description
Technical field
The present invention relates to touch technology, particularly a kind of touch control display apparatus.
Background technology
Along with the raising of display device functionalities and the further requirement to its function of people, the display device with touch controllable function is arisen at the historic moment, and day by day ripe.Traditional touch control display apparatus comprises external hanging type touch control display apparatus and integrated type touch control display apparatus, and integrated type touch control display apparatus is divided into again outer insert-type (On Cell) and interior insert-type (In Cell).Particularly, On Cell touch control display apparatus refers to and is arranged between the polaroid of display panel and colored filter substrate by touch sensing, and In Cell touch control display apparatus refer to touch sensing is embedded into display panel dot structure among.Compared to On Cell touch control display apparatus, In Cell touch control display apparatus has panel slimming and light-weighted advantage, can reduce manufacturing cost and plate thickness.
A kind of In Cell touch control display apparatus of the prior art touch sensing is integrated into fringe field switch type (Fringe Field Switching, FFS) among display panels, wherein, the induction electrode of the touch sensing that many are parallel to each other is set at the colored filter substrate of display panels in the one side of liquid crystal layer, and is provided with the drive electrode of the touch sensing that many are parallel to each other above public electrode on the thin film transistor base plate of display panels.Drive electrode is vertical with the bearing of trend of induction electrode, forms inductance capacitance in intersection.When drive electrode provides touch-control drive singal, if the touch-screen of human contact's touch control display apparatus, the body capacitance electric field produced between human body and touch-screen will act on inductance capacitance, the capacitance of inductance capacitance is changed, now external touch circuit changes according to the capacitance because of inductance capacitance on the induction electrode detected and the change in voltage caused, and just can determine that human contact is to the contact position on touch-screen.But when realizing touch controllable function, the voltage on the drive electrode of touch sensing and the voltage on induction electrode can affect the voltage at liquid crystal two ends, thus panel is caused to produce the optical characteristics such as water ripples, light leak problem.
In prior art, solution to the problems described above has following two kinds: (1) increases medium thickness, and then reduces the driving voltage of touch sensing and induced voltage to the impact of liquid crystal layer; (2) increase the width of black matrix, by drive electrode and induction electrode, the impact on optics shelters from, in order to avoid produce light leak.But in the above described two methods, method one, can not unlimited increase medium thickness due to process technology limit, and secondly, medium thickness is thicker, and cost is higher; While method two increases the width of black matrix, also reduce the aperture opening ratio of panel.
Therefore, need to provide a kind of touch control display apparatus, to solve the problem that in above-mentioned prior art problem, manufacturing cost is high, aperture opening ratio is low.
Summary of the invention
The object of the present invention is to provide a kind of touch control display apparatus, to solve the problem of high cost caused by the scheme taked for the optical characteristics problem such as water ripples, light leak avoiding panel to produce in prior art and low aperture opening ratio.
The invention provides a kind of touch control display apparatus, this touch control display apparatus comprises colored filter substrate, the liquid crystal layer between this thin film transistor base plate and this colored filter substrate, multiple touch-control drive electrode and the multiple touch-control sensing electrode that thin film transistor base plate and this thin film transistor (TFT) are oppositely arranged.This thin film transistor base plate comprises the first substrate and is arranged at the sweep trace and many data lines be parallel to each other that this first substrate is parallel to each other towards many on the surface of liquid crystal layer, and this multi-strip scanning line and this plurality of data lines insulate crossing to define multiple pixel cell.This colored filter substrate comprises the second substrate and is arranged at this second substrate towards the flatness layer on the surface of liquid crystal layer.The plurality of touch-control drive electrode is used for providing touch-control drive singal, and the plurality of touch-control drive electrode is arranged in this first substrate.The plurality of touch-control sensing electrode is used for providing touch-control sensing signal, and the plurality of touch-control sensing electrode is arranged on this flatness layer surface of this colored filter substrate.Wherein, the liquid crystal molecule in this liquid crystal layer is negative liquid crystal.
Further, the plurality of touch-control drive electrode is arranged on the top of the corresponding sweep trace of this thin film transistor base plate.
Further, this first substrate is provided with the first electrode layer and the second electrode lay further, this first electrode layer comprises a kind of electrode in public electrode or pixel electrode, this second electrode comprises the another kind of electrode in public electrode or pixel electrode, and wherein this public electrode and this touch-control drive electrode share.
Further, this first electrode layer is plane-shape electrode structure or comprises multiple strip sub-electrode be parallel to each other, this the second electrode lay comprises multiple strip sub-electrode be parallel to each other, and the strip sub-electrode in this first electrode layer insulate crossing with the strip sub-electrode in this second electrode lay.
Further, the plurality of touch-control sensing electrode is parallel to each other, each touch-control sensing electrode comprises the Part I parallel and corresponding with sweep trace and the Part II parallel and corresponding with data line thus forms reticulate texture to surround corresponding at least one row pixel cell, and each touch-control sensing electrode is parallel with data line.
Further, this first electrode layer or this second electrode lay are that planar is arranged in this first substrate.
Further, the material of this touch-control sensing electrode is transparent conductive film or metal, and the material of this touch-control drive electrode is transparent conductive film or metal.
Further, the signal of this touch-control sensing electrode leads this thin film transistor base plate by conductive metal balls, and then together with wire, is connected to touch-control flexible PCB with this touch-control drive electrode.
Further, the electric capacity that one stable is kept between this touch-control drive electrode and this touch-control sensing electrode, when touch causes stable electric capacity to be destroyed, the capacitive feedback after change to integrated circuit, is calculated can be determined touch location by this integrated circuit by this touch-control sensing electrode.
Further, the low level of this touch-control drive singal and this touch-control sensing signal is-2V-0, and the high level of this touch-control drive singal is 3V-5V, and the high level of this touch-control sensing signal is 0-3V.
Because touch-control sensing electrode is arranged on flatness layer surface by touch control display apparatus of the present invention, therefore when the signal of the touch-control sensing electrode on colored filter substrate is led thin film transistor base plate by conductive metal balls without the need to hollowing out on flatness layer surface; In addition, touch control display apparatus of the present invention adopts negative liquid crystal technology, short dielectric coefficient due to negative liquid crystal is greater than the dielectric coefficient of major axis, therefore the voltage being applied to touch-control sensing electrode on liquid crystal turn to not impact, and then there will not be the optical problem such as water ripples and light leak, and touch-control sensing electrode surface is without the need to adding one dielectric layer, without the need to widening the width of black matrix", reduce cost, improve the aperture opening ratio of touch control display apparatus.
Accompanying drawing explanation
The part planar structural representation of a kind of touch control display apparatus that Fig. 1 provides for first embodiment of the invention.
Fig. 2 is the cross-sectional view of the II-II along the line of the touch control display apparatus shown in Fig. 1.
Fig. 3 is the cross-sectional view of the III-III along the line of the touch control display apparatus shown in Fig. 1.
The part planar structural representation that Fig. 4 is the thin film transistor base plate of the touch control display apparatus shown in Fig. 1.
The planar structure schematic diagram of multiple touch-control sensing electrodes that Fig. 5 provides for one embodiment of the invention.
The part planar structural representation of the touch-control sensing electrode that Fig. 6 is the touch control display apparatus shown in Fig. 1.
The part planar structural representation of a kind of touch control display apparatus that Fig. 7 provides for second embodiment of the invention.
Fig. 8 is the cross-sectional view of the II-II along the line of the touch control display apparatus shown in Fig. 7.
Fig. 9 is the cross-sectional view of the III-III along the line of the touch control display apparatus shown in Fig. 7.
The touch-control drive singal of a kind of touch control display apparatus that Figure 10 provides for first embodiment of the invention and the time diagram of touch-control sensing signal.
The touch-control drive singal of a kind of touch control display apparatus that Figure 11 provides for second embodiment of the invention and the time diagram of touch-control sensing signal.
The touch-control drive singal of a kind of touch control display apparatus that Figure 12 provides for third embodiment of the invention and the time diagram of touch-control sensing signal.
The penetrance of a kind of touch control display apparatus that Figure 13 provides for the embodiment of the present invention is with the curve synoptic diagram of the change in voltage of touch-control sensing signal.
The penetrance of a kind of touch control display apparatus that Figure 14 provides for first embodiment of the invention is along with the touch-control drive electrode position corresponding with sweep trace and time variations and the schematic diagram changed.
Embodiment
For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of touch control display apparatus proposed according to the present invention, method, step, structure, feature and effect, be described in detail as follows.
Aforementioned and other technology contents, feature and effect for the present invention, can clearly present in the detailed description of following cooperation with reference to graphic preferred embodiment.By the explanation of embodiment, when can to the present invention for the technological means reaching predetermined object and take and effect be able to more deeply and concrete understanding, however institute's accompanying drawings be only to provide with reference to and the use of explanation, be not used for being limited the present invention.
Please refer to Fig. 1, Fig. 2 and Fig. 3, the part planar structural representation of a kind of touch control display apparatus 100 that Fig. 1 provides for first embodiment of the invention, Fig. 2 is the cross-sectional view of the II-II along the line of the touch control display apparatus 100 shown in Fig. 1, and Fig. 3 is the cross-sectional view of the III-III along the line of the touch control display apparatus 100 shown in Fig. 1.As shown in Figure 1, Figure 2 with shown in Fig. 3, touch control display apparatus 100 comprises thin film transistor base plate 110 colored filter substrate relative with this thin film transistor base plate 110 120 and the liquid crystal layer 130 between this thin film transistor base plate 110 and this colored filter substrate 120.Wherein, the liquid crystal molecule in this liquid crystal layer 130 is negative liquid crystal.
Please refer to Fig. 2 and Fig. 3, thin film transistor base plate 110 comprises the first substrate 111, first insulation course 112, data line 113, second insulation course 114, first electrode layer 115, the 3rd insulation course 116 and the second electrode lay 117.This first insulation course 112, data line 113, second insulation course 114, first electrode layer 115, the 3rd insulation course 116 and the second electrode lay 117 are cascadingly set on this first substrate 111 towards on the surface of liquid crystal layer 130, this first substrate 111 of fitting of this first insulation course 112 is arranged, this data line 113 is arranged between this first insulation course 112 and this second insulation course 114, this first electrode layer 115 is arranged between this second insulation course 114 and the 3rd insulation course 116, and this second electrode lay 117 is arranged between the 3rd insulation course 116 and liquid crystal layer 130.Electrode in this second electrode lay 117 comprises multiple strip sub-electrode be parallel to each other, in the present embodiment, this first electrode layer 115 is a planar electrode structure, in other embodiments, electrode in this first electrode layer 115 also can comprise multiple strip sub-electrode be parallel to each other, and the strip sub-electrode in the first electrode layer 115 insulate crossing with the strip sub-electrode in this second electrode lay 117.This first electrode layer 115 is transparent conductive material with this second electrode lay 117 and makes.In the present embodiment, this first electrode layer 115 comprises pixel electrode (sign), and this second electrode lay 117 comprises public electrode (sign), in other embodiments, this first electrode layer 115 comprises public electrode, and this second electrode lay 117 comprises pixel electrode.
In addition, please also refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, Fig. 4 is the part planar structural representation of the thin film transistor base plate 110 of the touch control display apparatus 100 shown in Fig. 1.As shown in Fig. 4 and Fig. 1, thin film transistor base plate 110 of the present invention also comprises many sweep traces be parallel to each other 118 and is arranged at the multiple touch-control drive electrodes 119 above this sweep trace 118.This touch-control drive electrode 119 is arranged between the 3rd insulation course 116 and this second insulation course 114, and these many sweep traces be parallel to each other 118 are arranged at the surface of this first substrate 111 towards liquid crystal layer 130.
Please refer to Fig. 2 and Fig. 3, colored filter substrate 120 comprises the second substrate 121, is arranged at this second substrate 121 towards the light shield layer 125 on the surface of liquid crystal layer 130, color blocking layer 124, flatness layer 122 and the multiple touch-control sensing electrodes 123 being arranged on this flatness layer 122 surface.This color blocking layer 124 is arranged between this flatness layer 122 and this second substrate 121, and this light shield layer 125 is arranged between this color blocking layer 124 and this second substrate 121, and the contiguous liquid crystal layer 130 of this color blocking layer 124, this light shield layer 125 is away from liquid crystal layer 130.
Please also refer to Fig. 6 and Fig. 1, Fig. 6 is the part planar structural representation of the touch-control sensing electrode 123 of the touch control display apparatus 100 shown in Fig. 1.As shown in Fig. 6 and Fig. 1, this touch-control sensing electrode 123 comprises the Part I 1231 parallel and corresponding with sweep trace 118 and the Part II 1232 parallel and corresponding with data line 113, thus surrounds corresponding multiple pixel cells.
Refer to Fig. 5, the planar structure schematic diagram of multiple touch-control sensing electrodes 123 that Fig. 5 provides for one embodiment of the invention.As shown in Figure 5, the plurality of touch-control sensing electrode 123 is parallel to each other and disconnects, and each touch-control sensing electrode 123 is reticulate texture thus surrounds corresponding at least one row pixel cell, and each touch-control sensing electrode 123 is parallel with data line 113.
In the present embodiment, touch-control sensing electrode 123 is transparent conductive film with the material of touch-control drive electrode 119, certainly it will be appreciated by persons skilled in the art that touch-control sensing electrode 123 also can be metal with the material of touch-control drive electrode 119.
Touch-control sensing electrode 123 is arranged on flatness layer 122 surface by the touch control display apparatus 100 of the present embodiment, therefore when the signal of the touch-control sensing electrode 123 on colored filter substrate 120 is led thin film transistor base plate 110 by conductive metal balls without the need to hollowing out on flatness layer 122 surface, thus save one optical cover process.In addition, touch control display apparatus 100 of the present invention adopts negative liquid crystal technology, dielectric coefficient due to the minor axis of negative liquid crystal is greater than the dielectric coefficient of major axis, therefore the voltage being applied to touch-control sensing electrode 123 on liquid crystal turn to not impact, and then there will not be the optical problem such as water ripples and light leak, and touch-control sensing electrode 123 surface is without the need to adding one dielectric layer, without the need to widening the width of black matrix", reduce cost, improve the aperture opening ratio of touch control display apparatus.
Refer to Fig. 7, the part planar structural representation of a kind of touch control display apparatus 100 that Fig. 7 provides for second embodiment of the invention.As shown in Figure 7, the difference of the touch control display apparatus 100 that the touch control display apparatus 100 that second embodiment of the invention provides provides with the embodiment shown in Fig. 1 is only the position of the touch-control drive electrode 119 on thin film transistor base plate 110.Please refer to Fig. 7, Fig. 8 and Fig. 9, wherein, Fig. 8 is the cross-sectional view of the II-II along the line of the touch control display apparatus 100 shown in Fig. 7, and Fig. 9 is the cross-sectional view of the III-III along the line of the touch control display apparatus 100 shown in Fig. 7.As shown in Fig. 7, Fig. 8 and Fig. 9, the touch-control drive electrode 119 of the touch control display apparatus 100 that second embodiment of the invention provides shares with the public electrode 117 on thin film transistor base plate 110, and it can switch touch-control drive electrode 119 signal respective with public electrode 117 by external circuit.Touch-control drive electrode 119 and public electrode 117 share by the touch control display apparatus 100 of the present embodiment, without the need to making touch-control drive electrode 119 in addition, decreasing operation, reducing cost.
In the present embodiment, touch-control sensing electrode 123 is transparent conductive film with the material of touch-control drive electrode 119, certainly it will be appreciated by persons skilled in the art that the material of touch-control drive electrode 119 also can be metal.
In an embodiment of the present invention, the signal of colored filter substrate 120 is led on thin film transistor base plate 110 by conductive module, and then together with wire, is connected to touch-control flexible PCB with touch-control drive electrode 119 by the multiple touch-control sensing electrodes 123 be arranged on colored filter substrate 120.In the present embodiment, conductive module is for bonding colored filter substrate 120 and the metallic microspheres in the fluid sealant of thin film transistor base plate 110.
Refer to Figure 10, the touch-control drive singal V1 of a kind of touch control display apparatus 100 that Figure 10 provides for first embodiment of the invention and the time diagram of touch-control sensing signal V2.As shown in Figure 10, the low level voltage of touch-control drive singal V1 and touch-control sensing signal V2 maintains common electric voltage Vcom, and common electric voltage Vcom is between-2V to 0V, the high level of touch-control drive singal V1 maintains and sends voltage VTx, and send voltage VTx between 3-5V, the high level of touch-control sensing signal V2 maintains receiver voltage VRx, and receiver voltage VRx is between 0-3V.For the touch control display apparatus 100 of 1920*1080, touch control display apparatus 100 in display frame time, completing a scan period in theory needs 16.7ms, but completing a scan period in reality needs 17ms, when this time period differed with the real time at theoretical time, touch-control drive singal V1 becomes transmission voltage VTx from common electric voltage Vcom, touch-control sensing signal V2 becomes receiver voltage VRx from common electric voltage Vcom, now, the electric capacity that one stable is kept between touch-control drive electrode 119 and touch-control sensing electrode 123, when finger touch is to the touch-screen of touch control display apparatus 100, stable electric capacity between touch-control drive electrode 119 and touch-control sensing electrode 123 is destroyed, and then pass through touch-control sensing electrode 123 by the capacitive feedback after change to integrated circuit, the position that can obtain touching is calculated by integrated circuit.
Refer to Figure 11, the touch-control drive singal V1 of a kind of touch control display apparatus 100 that Figure 11 provides for second embodiment of the invention and the time diagram of touch-control sensing signal V2.As shown in figure 11, touch-control drive singal V1 also can maintain high level signal for sending voltage VTx always, touch-control sensing signal V2 keeps low level signal to maintain common electric voltage Vcom, high level signal maintains receiver voltage VRx, touch-control sensing signal V2 becomes receiver voltage VRx from common electric voltage Vcom, now, the electric capacity that one stable is kept between touch-control drive electrode 119 and touch-control sensing electrode 123, when finger touch is to the touch-screen of touch control display apparatus 100, stable electric capacity between touch-control drive electrode 119 and touch-control sensing electrode 123 is destroyed, and then pass through touch-control sensing electrode 123 by the capacitive feedback after change to integrated circuit, the position that can obtain touching is calculated by integrated circuit.
Refer to Figure 12, the touch-control drive singal V1 of a kind of touch control display apparatus 100 that Figure 12 provides for third embodiment of the invention and the time diagram of touch-control sensing signal V2.As shown in figure 12, touch-control drive singal V1 can maintain high level signal for sending voltage VTx always, it is receiver voltage VRx that touch-control sensing signal V2 can maintain high level signal always, when touch-control drive singal V1 and touch-control sensing signal V2 maintain respective voltage constant time, the electric capacity that one stable is kept between touch-control drive electrode 119 and touch-control sensing electrode 123, when finger touch is to the touch-screen of touch control display apparatus 100, stable electric capacity between touch-control drive electrode 119 and touch-control sensing electrode 123 is destroyed, and then pass through touch-control sensing electrode 123 by the capacitive feedback after change to integrated circuit, the position that can obtain touching is calculated by integrated circuit.
Refer to Figure 13, the penetrance of a kind of touch control display apparatus 100 that Figure 13 provides for the embodiment of the present invention is with the curve synoptic diagram of the change in voltage of touch-control sensing signal V2.As shown in figure 13, what A represented is when touch-control sensing signal V2 is 0V, the change curve schematic diagram of saturation voltage V and penetrance TR; What B represented is when touch-control sensing signal V2 is 1V, the change curve schematic diagram of saturation voltage V and penetrance TR; What C represented is when touch-control sensing signal V2 is 2V, the change curve schematic diagram of saturation voltage V and penetrance TR; What D represented is when touch-control sensing signal V2 is 3V, the change curve schematic diagram of saturation voltage V and penetrance TR, as can be seen from Figure 8, when touch-control sensing signal V2 becomes large, saturation voltage V also becomes large accordingly, and penetrance TR does not have too large change along with the change of touch-control sensing signal V2 and saturation voltage V.
In an embodiment of the present invention, when the voltage of touch-control sensing signal V2 is 0, the rising edge response time Ton of touch control display apparatus 100 is 12.3ms, and negative edge response time Toff is 18.34ms, and the response time is 30.64ms; When the voltage of touch-control sensing signal V2 is 1V, the rising edge response time Ton of touch control display apparatus 100 is 12.87ms, and negative edge response time Toff is 18.46ms, and the response time is 31.33ms; When the voltage of touch-control sensing signal V2 is 2V, the rising edge response time Ton of touch control display apparatus 100 is 13.42ms, and negative edge response time Toff is 18.97ms, and the response time is 32.39ms; When the voltage of touch-control sensing signal V2 is 3V, the rising edge response time Ton of touch control display apparatus 100 is 13.88ms, and negative edge response time Toff is 19.97ms, and the response time is 33.85ms.In sum, along with the voltage of touch-control sensing signal V2 increases, although the response time of touch control display apparatus 100 is in increase, the degree increased is very little.
Refer to Figure 14, the penetrance of the touch control display apparatus 100 that Figure 14 provides for first embodiment of the invention is along with touch-control drive electrode 119 position corresponding with sweep trace 118 and time variations and the schematic diagram changed.As shown in figure 14, M representative be touch-control drive electrode 119 along sweep trace 118 direction cabling time, the penetrance TR of touch control display apparatus 100 is along with the curve synoptic diagram of time variations, N representative be the position of the correspondence of touch-control drive electrode 119 not along sweep trace 118 direction cabling time, the penetrance TR of touch control display apparatus 100 is along with the curve synoptic diagram of time variations, as can be seen from Figure 10, when touch-control drive electrode 119 is along sweep trace 118 cabling, penetrance TR does not change substantially along with the time changes, when the position of the correspondence of touch-control drive electrode 119 is not along sweep trace 118 cabling, penetrance TR has certain increase along with putting off of time, therefore, as shown in Figure 10, touch-control drive electrode 119 is relevant with the penetrance TR of touch control display apparatus 100 to the relative position of sweep trace 118.In order to keep stablizing of penetrance TR, touch-control drive electrode 119 need along sweep trace 118 cabling.
Touch-control sensing electrode 123 is arranged on flatness layer 122 surface by touch control display apparatus 100 of the present invention, therefore when the signal of the touch-control sensing electrode 123 on colored filter substrate 120 is led thin film transistor base plate 110 by conductive metal balls without the need to hollowing out on flatness layer 122 surface; In addition, touch control display apparatus 100 of the present invention adopts negative liquid crystal technology, short dielectric coefficient due to negative liquid crystal is greater than the dielectric coefficient of major axis, therefore the voltage being applied to touch-control sensing electrode 123 on liquid crystal turn to not impact, and then there will not be the optical problem such as water ripples and light leak, and touch-control sensing electrode 123 surface is without the need to adding one dielectric layer, without the need to widening the width of black matrix", reduce cost, improve the aperture opening ratio of touch control display apparatus.
Apply specific case herein to set forth touch control display apparatus of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, to sum up, this description should not be construed as limitation of the present invention.
Claims (10)
1. a touch control display apparatus, comprises colored filter substrate that thin film transistor base plate and this thin film transistor base plate be oppositely arranged and the liquid crystal layer between this thin film transistor base plate and this colored filter substrate,
Wherein, this thin film transistor base plate comprises the first substrate and is arranged at the sweep trace and many data lines be parallel to each other that this first substrate is parallel to each other towards many on the surface of liquid crystal layer, and this multi-strip scanning line and this plurality of data lines insulate crossing to define multiple pixel cell;
This colored filter substrate comprises the second substrate and is arranged at this second substrate towards the flatness layer on the surface of liquid crystal layer, and it is characterized in that, this touch control display apparatus also comprises:
Multiple touch-control drive electrode, for providing touch-control drive singal, the plurality of touch-control drive electrode is arranged in this first substrate;
Multiple touch-control sensing electrode, for providing touch-control sensing signal, the plurality of touch-control sensing electrode is arranged on this flatness layer surface of this colored filter substrate;
Wherein, the liquid crystal molecule in this liquid crystal layer is negative liquid crystal.
2. touch control display apparatus as claimed in claim 1, it is characterized in that, the plurality of touch-control drive electrode is arranged on the top of the corresponding sweep trace of this thin film transistor base plate.
3. touch control display apparatus as claimed in claim 1, it is characterized in that, this first substrate is provided with the first electrode layer and the second electrode lay further, this first electrode layer comprises a kind of electrode in public electrode or pixel electrode, this second electrode comprises the another kind of electrode in public electrode or pixel electrode, and wherein this public electrode and this touch-control drive electrode share.
4. touch control display apparatus as claimed in claim 1, it is characterized in that, this first electrode layer is plane-shape electrode structure or comprises multiple strip sub-electrode be parallel to each other, this the second electrode lay comprises multiple strip sub-electrode be parallel to each other, and the strip sub-electrode in this first electrode layer insulate crossing with the strip sub-electrode in this second electrode lay.
5. touch control display apparatus as claimed in claim 1, it is characterized in that, the plurality of touch-control sensing electrode is parallel to each other, each touch-control sensing electrode comprises the Part I parallel and corresponding with sweep trace and the Part II parallel and corresponding with data line thus forms reticulate texture to surround corresponding at least one row pixel cell, and each touch-control sensing electrode is parallel with data line.
6. touch control display apparatus as claimed in claim 3, it is characterized in that, this first electrode layer or this second electrode lay are that planar is arranged in this first substrate.
7. touch control display apparatus as claimed in claim 4, it is characterized in that, the material of this touch-control sensing electrode is transparent conductive film or metal, and the material of this touch-control drive electrode is transparent conductive film or metal.
8. touch control display apparatus as claimed in claim 1, it is characterized in that, the signal of this touch-control sensing electrode leads this thin film transistor base plate by conductive metal balls, and then together with wire, is connected to touch-control flexible PCB with this touch-control drive electrode.
9. touch control display apparatus according to claim 1, it is characterized in that, the electric capacity that one stable is kept between this touch-control drive electrode and this touch-control sensing electrode, when touch causes stable electric capacity to be destroyed, capacitive feedback after change to integrated circuit, is calculated can be determined touch location by this integrated circuit by this touch-control sensing electrode.
10. touch control display apparatus as claimed in claim 1, it is characterized in that, the low level of this touch-control drive singal and this touch-control sensing signal is-2V-0, and the high level of this touch-control drive singal is 3V-5V, and the high level of this touch-control sensing signal is 0-3V.
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| CN201510016402.5A CN104636015A (en) | 2015-01-13 | 2015-01-13 | Touch display device |
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| CN201510016402.5A CN104636015A (en) | 2015-01-13 | 2015-01-13 | Touch display device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105739151A (en) * | 2016-02-05 | 2016-07-06 | 昆山龙腾光电有限公司 | Liquid-crystal control display panel |
| CN106855764A (en) * | 2015-12-09 | 2017-06-16 | 南昌欧菲光科技有限公司 | Touch display unit |
| JP2018004925A (en) * | 2016-07-01 | 2018-01-11 | 株式会社ジャパンディスプレイ | Display device |
| CN107801414A (en) * | 2015-05-27 | 2018-03-13 | 株式会社半导体能源研究所 | Touch panel |
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