CN204347811U - Touch-control sensing unit, touch base plate, touch-control display panel and touch control display apparatus - Google Patents
Touch-control sensing unit, touch base plate, touch-control display panel and touch control display apparatus Download PDFInfo
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- CN204347811U CN204347811U CN201420857692.7U CN201420857692U CN204347811U CN 204347811 U CN204347811 U CN 204347811U CN 201420857692 U CN201420857692 U CN 201420857692U CN 204347811 U CN204347811 U CN 204347811U
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Abstract
Disclose a kind of touch-control sensing unit, touch base plate, touch-control display panel and touch control display apparatus.Touch-control sensing unit, comprising: from the first electrode arranged and the second electrode; Elastic matrix, containing pressure sensitive conductive material in described elastic matrix, described elastic matrix makes described first electrode and the electrical connection of the second electrode when stress deformation; And Trackpad, described Trackpad is arranged at the stressed side of described elastic matrix.Utilize the conductive characteristic finger sensing touch action of pressure sensitive conductive material, improve the convenience of finger touch, multi-point touch performance.
Description
Technical field
Embodiment of the present utility model relates to a kind of touch control display apparatus, particularly relates to a kind of touch-control sensing unit, touch base plate, touch-control display panel and touch control display apparatus.
Background technology
In the field of flat-panel screens, display of organic electroluminescence (OLED) because the investment of its manufacturing equipment is less, processing procedure comparatively simple and due to panel can self-luminescence, thus backlight element can be reduced, and the thickness of display pannel can be reduced, be therefore widely used in flat-panel screens.Along with the development of display technique, the touch technology being applied to display device also develops thereupon, and such as, the touch technology being applied to display device researched and developed comprises electric capacity, resistance, voltage sensor, electromagnetism, the control mode touch mode such as infrared.
Along with the raising day by day that user's experience requires, the performance of touch controllable function device in reaction velocity, degree of accuracy, complex function etc. more and more comes into one's own.
Utility model content
Embodiment of the present utility model provides a kind of touch-control sensing unit, touch base plate, touch-control display panel and touch control display apparatus, utilizes the conductive characteristic finger sensing of pressure sensitive conductive material to touch or lettering pen touch motion.
Embodiment of the present utility model provides a kind of touch-control sensing unit, touch base plate and preparation method thereof, touch-control display panel and touch control display apparatus, the conductive characteristic finger sensing of pressure sensitive conductive material is utilized to touch or lettering pen touch motion, and utilize the input action of magnetic material induced electricity magnetic pen, to realize the two control mode touch mode of finger and time writer.
According to the embodiment of the utility model utility model, a kind of touch-control sensing unit is provided, comprises: from the first electrode arranged and the second electrode; Elastic matrix, containing pressure sensitive conductive material in described elastic matrix, described elastic matrix makes described first electrode and the electrical connection of the second electrode when stress deformation; And Trackpad, described Trackpad is arranged at the stressed side of described elastic matrix.
According to the touch-control sensing unit of a kind of embodiment of the utility model, between described Trackpad and described elastic matrix, there is predeterminable range.
Touch-control sensing unit according to a kind of embodiment of the utility model also comprises magnetic trigger layer, and described magnetic trigger layer is arranged on the stressed side of described elastic matrix between described Trackpad and elastic matrix.
According to the touch-control sensing unit of a kind of embodiment of the utility model, described pressure sensitive conductive material comprises that graphite is rare, at least one in carbon nano-tube, conductive black, metal powder and metal fibre.
According to the touch-control sensing unit of a kind of embodiment of the utility model, described elastic matrix is made up of at least one in acryl resin, EP rubbers, nitrile rubber, neoprene and silicon rubber.
According to the touch-control sensing unit of a kind of embodiment of the utility model, described Trackpad is made up of the material of force-applied distortion, for oppressing the distortion of described elastic matrix after stress deformation.
According to the touch-control sensing unit of a kind of embodiment of the utility model, described first electrode and the second electrode are multiple, described first electrode and the spaced setting of the second electrode.
According to the touch-control sensing unit of a kind of embodiment of the utility model, described elastic matrix all contacts with described second electrode with described first electrode.
According to the touch-control sensing unit of a kind of embodiment of the utility model, described touch-control sensing unit is arranged on display panel, wherein, described elastic matrix is arranged on the inside surface of the upper substrate of described display panel, and described first electrode and the second electrode are arranged on the inside surface of the infrabasal plate of described display panel.
According to the utility model embodiment on the other hand, a kind of touch base plate is provided, comprises the touch-control sensing unit described in multiple above-mentioned any embodiment.
Touch base plate according to a kind of embodiment of the utility model also comprises: many touch-control emission line and many touch-controls receive line, each described first electrode is electrically connected to corresponding described touch-control emission line, and each described second electrode is electrically connected to corresponding described touch-control and receives line.
According to the touch base plate of a kind of embodiment of the utility model, described touch base plate is applied in display panels, and described touch base plate is also provided with colored light-filtering units.
According to the touch base plate of a kind of embodiment of the utility model, described touch base plate also comprises public electrode, and described public electrode, the first electrode and the second electrode are formed within the same layer by same transparent conductive material.
According to the embodiment of the utility model further aspect, a kind of touch-control display panel is provided, comprises the touch base plate described in above-mentioned any embodiment, array base palte and the liquid crystal layer between described touch base plate and described array base palte.Described array base palte comprises: many grid lines and a plurality of data lines, and described grid line and the mutual arranged crosswise of data line are to form multiple display unit; And multiple thin film transistor (TFT), each thin film transistor (TFT) to be arranged in corresponding described display unit and to be electrically connected with corresponding described grid line.
According to the touch-control display panel of a kind of embodiment of the utility model, described array base palte comprises transparency conducting layer, described first electrode and the second electrode and described transparency conducting layer by same layer transparent conductive material by being formed with a patterning processes.
According to the touch-control display panel of a kind of embodiment of the utility model, described array base palte comprises transparency conducting layer, described first electrode and the second electrode are positioned at the light direction side of described transparency conducting layer, are separated with transparent insulating layer between equal between described transparency conducting layer and described first electrode, between described transparency conducting layer and described second electrode.
According to the touch-control display panel of a kind of embodiment of the utility model, described grid line is used as described touch-control emission line.
According to the touch-control display panel of a kind of embodiment of the utility model, described grid line is used as the touch-control emission line in described touch base plate, and is electrically connected with in the first corresponding electrode and the second electrode by via hole.
According to the embodiment of the utility model further aspect again, a kind of touch control display apparatus is provided, comprises: the touch-control display panel described in above-mentioned any embodiment; And time writer, one end of described time writer is provided with the contact head comprising magnetic material, and the Magnetic Phase of the magnetic of the magnetic material of described contact head and the magnetic material of magnetic trigger layer is same.
According to the touch-control sensing unit of the utility model above-described embodiment, touch base plate, touch-control display panel and touch control display apparatus, utilize the conductive characteristic finger sensing touch action of pressure sensitive conductive material, improve the convenience of finger touch, multi-point touch performance.Further, utilize the input action of magnetic material induced electricity magnetic pen, finger control mode touch mode two with time writer can be realized.
Accompanying drawing explanation
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is described in further detail, wherein:
Fig. 1 is the partial sectional view of the touch base plate according to the first exemplary embodiment of the present utility model;
Fig. 2 is the part plan schematic diagram being provided with touch-control sensing cellular array substrate according to the first exemplary embodiment of the utility model;
Fig. 3 is the schematic cross-sectional view of the touch-control sensing unit according to a kind of exemplary embodiment of the utility model, and wherein Trackpad is not stressed;
Fig. 4 is the schematic cross-sectional view of the touch-control sensing unit conducting under finger touch status shown in Fig. 3;
Fig. 5 is the schematic cross-sectional view of the touch-control sensing unit conducting under time writer write state shown in Fig. 3;
Fig. 6 is the sequential operation schematic diagram of the touch-control addressing under non-touch-control state of touch base plate according to a kind of exemplary embodiment of the present utility model;
Fig. 7 is the sequential operation schematic diagram of the touch-control addressing under touch-control state of touch base plate according to a kind of exemplary embodiment of the present utility model;
Fig. 8 is the partial sectional view of the touch base plate according to the second exemplary embodiment of the present utility model; And
Fig. 9 is the part plan schematic diagram being provided with touch-control sensing cellular array substrate according to the utility model the second exemplary embodiment.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.In the description, same or analogous drawing reference numeral indicates same or analogous parts.The explanation of following reference accompanying drawing to the utility model embodiment is intended to make an explanation to overall utility model design of the present utility model, and not should be understood to one restriction of the present utility model.
Utility model generally according to various exemplary embodiment of the present utility model is conceived, and provides a kind of touch base plate, comprising: multiple first electrode and multiple second electrode; Multiple elastic matrix, containing pressure sensitive conductive material in described elastic matrix, described elastic matrix makes described first electrode and the electrical connection of the second electrode accordingly when stress deformation; Multiple touch-control emission line and multiple touch-control receive line, and described first electrode is electrically connected to corresponding described touch-control emission line, and described second electrode is electrically connected to described touch-control and receives line; And Trackpad, described Trackpad is arranged at the stressed side of described elastic matrix.
In the following detailed description, for ease of explaining, many concrete details have been set forth to provide the complete understanding to this disclosure embodiment.But significantly, one or more embodiment also can be implemented when not having these details.In other cases, known construction and device diagrammatically embodies to simplify accompanying drawing.
Fig. 3 is the schematic cross-sectional view of the touch-control sensing unit according to a kind of exemplary embodiment of the utility model.See Fig. 3, touch-control sensing unit 20 comprises: interval or the first electrode 21 and the second electrode 22 from setting; Be arranged on the elastic matrix 23 on the first electrode 21 and the second electrode 22, in described elastic matrix 23 containing such as graphite the pressure sensitive conductive material 25 of rare or carbon nano-tube and so on, make elastic matrix 23 make the first electrode 21 and the second electrode 22 be electrically connected when stress deformation; And be arranged at the Trackpad 30 ' of stressed side of elastic matrix 23.Trackpad 30 ' is arranged on elastic matrix 23, to press elastic matrix 23 under the effect of external force.
In one embodiment, as shown in Figure 3, under the state be not pressed, the predeterminable range between Trackpad 30 ' and elastic matrix 23 is D1.Such as, setpoint distance D1 can be carried out according to the power of the material deformation characteristic of Trackpad 30 ' and/or magnetic control induction.Be appreciated that D1 can be set to zero, as long as elastic matrix 23 is in naturally non-contraction state under the state be not pressed.When D1 is zero, insulating film layer can be had between Trackpad 30 ' and elastic matrix 23, to isolate the two.
In one embodiment, pressure sensitive conductive material 25 can be Graphene (Graphene).As a kind of nano material, Graphene has good transmittance, is almost completely transparent; The movement velocity of movement velocity selectron far away in general conductor of the rare middle electronics of graphite, under normal temperature, its electron mobility is very high; Particularly, the resistivity that graphite is rare is very little.But pressure sensitive conductive material 25 is not limited only to be that graphite is rare, in the interchangeable embodiment of one, pressure sensitive conductive material 25 can be at least one in carbon nano-tube, conductive black, metal powder and metal fibre.
As shown in Figure 3, under being at elastic matrix 23 state of nature be not pressed, be entrained in the pressure sensitive conductive material 25 of the rare or carbon nano-tube monomer of such as graphite in elastic matrix 23 and so in unordered ordered state, can not charge-conduction be realized, now keep electric insulating state between the first electrode 21 and the second electrode 22.
As shown in Figure 4, when with finger 40 by be pressed in Trackpad 30 ' upper time, elastic matrix 23 is in the contraction state be pressed, the graphite monomer that is rare or carbon nano-tube be included in elastic matrix 23 is orderly ordered state, because graphite is rare or carbon nano-tube has good electric conductivity, elastic matrix 23 that is rare doped with graphite or carbon nano-tube 25 becomes and has charge-conduction function, converts status of electrically connecting between the first electrode 21 and the second electrode 22.Now, if the first electrode 21 is applied voltage signal as touch-control emitting electrode, then induced voltage signal can be obtained at the second electrode 22.Like this, whether there is electric signal by detecting the second electrode 22, the mode of operation whether Trackpad 30 ' is pressed by finger 40 can be determined rapidly and accurately.
In one embodiment, under the state be not pressed, between Trackpad 30 and elastic matrix 23, there is predeterminable range.Such as, described distance can be set according to the power of the material deformation characteristic of Trackpad 30 and/or magnetic control induction.Be appreciated that described distance can be set to zero, as long as elastic matrix 23 is in naturally non-contraction state under the state be not pressed.When described distance is zero, insulating film layer can be had between Trackpad 30 and elastic matrix 23, to isolate the two.
According to the touch-control sensing unit 20 of the further exemplary embodiment of the utility model, also comprise magnetic trigger layer 24, described magnetic trigger layer 24 is arranged on the stressed side of elastic matrix 23 between Trackpad 30 ' and elastic matrix 23, such as, be attached on the surface of elastic matrix 23.Like this, as shown in Figure 5, when writing on Trackpad 30 ' with time writer 50, the contact head 51 be made up of magnetic material being arranged on time writer 50 one end will interact with magnetic trigger layer 24.Same at the Magnetic Phase of magnetic material owing in advance the magnetic of the magnetic material of magnetic trigger layer 24 being arranged to contact 51, transmission touch plate 30 ' drives elastic matrix 23 to shrink by the magnetic field that the contact head 51 of time writer 50 produces, the distance between Trackpad 30 ' and elastic matrix 23 is made to expand as D2, as shown in Figure 5.Being entrained in the rare or carbon nano-tube monomer of such as graphite in elastic matrix 23 is orderly ordered state, because graphite is rare or carbon nano-tube 25 has good electric conductivity, elastic matrix 23 that is rare doped with graphite or carbon nano-tube 25 becomes and has charge-conduction function, converts status of electrically connecting between the first electrode 21 and the second electrode 22.Now, if the first electrode 21 is applied voltage signal as touch-control emitting electrode, then induced voltage signal can be obtained at the second electrode 22.Like this, whether there is electric signal by detecting the second electrode 22, the person's handwriting of Trackpad 30 ' time writer 50 can be determined rapidly and accurately.
In one embodiment, elastic matrix 23 is made up of at least one in acryl resin, EP rubbers, nitrile rubber, neoprene and silicon rubber, to make elastic matrix 23 have good elasticity, and when stressed, produces recoverable distortion.Further, Trackpad 30 ' is made up of the material of force-applied distortion, is out of shape, thus realizes touch-control sensing function for oppressing elastic matrix 23 after stress deformation.What need indicate is; elastic matrix 23 in the application has the character of stress deformation and conductive characteristic change; the embodiment of the application is not limited to be make its stress deformation by the mode of pressing or the mode of magnetic field repulsive force; by the situation of stress deformation by contact or cordless of other any types, be also encompassed in the protection domain of the application.
In one embodiment, the first electrode 21 and the second electrode 22 are multiple, and the first electrode 21 and the spaced setting of the second electrode 22, to improve touch-control reaction velocity.Because the first electrode 21 and the second electrode 22 are general by opaque metal, by the first electrode and the second electrode being arranged to many very thin lines, display effect can not be affected.First electrode 21 and the second electrode 22 also can be made up of transparent conductive material.In the interchangeable embodiment of one, first electrode and second electrode in each touch-control sensing unit, can be had.
In one embodiment, elastic matrix 23 all contacts with the second electrode 22 with the first electrode 21.Under being at elastic matrix 23 state of nature be not pressed, be entrained in the pressure sensitive conductive material 25 of the rare or carbon nano-tube monomer of such as graphite in elastic matrix 23 and so in unordered ordered state, can not charge-conduction be realized, now keep electric insulating state between the first electrode 21 and the second electrode 22.When with finger 40 by be pressed in Trackpad 30 ' upper time, elastic matrix 23 is in the contraction state be pressed, the graphite monomer that is rare or carbon nano-tube be included in elastic matrix 23 is orderly ordered state, because graphite is rare or carbon nano-tube has good electric conductivity, elastic matrix 23 that is rare doped with graphite or carbon nano-tube 25 becomes and has charge-conduction function, converts status of electrically connecting between the first electrode 21 and the second electrode 22.
In one embodiment, touch-control sensing unit is arranged on display panel, and wherein, elastic matrix 30 ' is arranged on the inside surface of the upper substrate of display panel, first electrode 21 and the second electrode 22 are arranged on the inside surface of the infrabasal plate of display panel, thus make display panel have touch-control sensing function.
See Fig. 1-3, according to the touch base plate of a kind of exemplary embodiment of the present utility model, comprising: multiple first electrode 21 and multiple second electrode 22; Multiple elastic matrix 23, the pressure sensitive conductive material 25 containing the rare or carbon nano-tube of such as graphite and so in described elastic matrix 23, described elastic matrix 23 makes described first electrode 21 and the second electrode 22 accordingly be electrically connected when stress deformation; Multiple touch-control emission line and multiple touch-control receive line 26, and described first electrode 21 is electrically connected to corresponding described touch-control emission line, and described second electrode 22 is electrically connected to described touch-control and receives line 26; And Trackpad 30, described Trackpad 30 is arranged at the stressed side of described elastic matrix 23.Trackpad 30 is arranged on elastic matrix 23, to press elastic matrix 23 under the effect of external force.
In one embodiment, many group induction electrodes are arranged to the array with multirow and multiple row, often organize induction electrode and comprise and be spaced apart and arranged in the first electrode 21 on array base palte 10 and multiple second electrode 22.On the first electrode 21 that each elastic matrix 23 is arranged on corresponding one group of induction electrode and the second electrode 22, in described elastic matrix doped with such as graphite the pressure sensitive conductive material 25 of rare or carbon nano-tube and so on, make elastic matrix 23 under the state be pressed, be electrically connected the first electrode 21 and the second electrode 22; Multiple touch-control emission line and multiple touch-control of such as mutual arranged crosswise receive line 26, and the first electrode 21 of each induction electrode is electrically connected to corresponding touch-control emission line, and the second electrode 22 is electrically connected to touch-control and receives line 26.Trackpad 30 is arranged on elastic matrix 23, to apply pressure towards elastic matrix 23 under the effect of external force.
Can be applied in various types of display panels such as display panels, OLED display panel, electronic paper display panel at the touch base plate of the utility model embodiment, such as, when being applied in display panels, described Trackpad is also provided with colored light-filtering units.In the case, Trackpad 30 and colored light-filtering units form color membrane substrates, and like this, embodiment of the present utility model provides the touch base plate of touch-control in a kind of box (in cell touch).
In a kind of exemplary embodiment, touch base plate also comprises magnetic trigger layer 24, and described magnetic trigger layer 24 is arranged on the stressed side of elastic matrix 23 between Trackpad 30 and elastic matrix 23, such as, be attached on the surface of elastic matrix 23.Further, arrange time writer 50, one end of described time writer 50 is provided with the contact head 51 comprising magnetic material, and the Magnetic Phase of the magnetic of the magnetic material of described contact head and the magnetic material of magnetic trigger layer 24 is same.Like this, when writing on Trackpad 30 with time writer 50, the contact head 51 be made up of magnetic material being arranged on time writer 50 one end will interact with magnetic trigger layer 24.Same at the Magnetic Phase of magnetic material owing in advance the magnetic of the magnetic material of magnetic trigger layer 24 being arranged on contact head 51, based on the principle of two like magnetic poles repel each other, the contact head 51 of time writer 50 will drive elastic matrix 23 to shrink through Trackpad 30, making to be entrained in rare or carbon nano-tube 25 monomer of graphite in elastic matrix 23 is orderly ordered state, converts status of electrically connecting between the first electrode 21 and the second electrode 22.By arranging magnetic trigger layer and being combined with time writer, human simulation person's handwriting or the input by stroke can be realized, be convenient to the input of small icon or little stroke.
In one embodiment, the first electrode 21 and the second electrode 22 are multiple, and the first electrode 21 and the spaced setting of the second electrode 22, to improve touch-control reaction velocity.Because the first electrode 21 and the second electrode 22 are general by opaque metal, by the first electrode and second being arranged to many very thin lines, display effect can not be affected.In the interchangeable embodiment of one, first electrode and second electrode in each touch-control sensing unit, can be had.
In one embodiment, described touch base plate also comprises public electrode, and described public electrode, the first electrode 21 and the second electrode 22 are formed within the same layer by same transparent conductive material, can reduce the manufacture craft of the first electrode 21 and the second electrode 22 like this.
According to the touch base plate of the utility model above-described embodiment, finger touch can be used to compress and to realize voltage sensor, also can carry out elasticity of compression matrix by the magnetic repulsive force making the magnetic trigger layer be arranged on elastic matrix be subject to time writer thus realize voltage sensor, thus there are two touch controllable functions of finger touch and time writer touch-control.Due in elastic matrix doped with graphite the pressure sensitive conductive material of rare or carbon nano-tube and so on, the touch base plate of the utility model embodiment has had the convenience of finger touch, multi-point touch feature and the high precision of time writer touch-control, the feature of the precise manipulation such as fast recording or former person's handwriting concurrently, optimize the structure of touch base plate, more lightening touch base plate can be obtained.
According to the embodiment of the utility model further aspect, a kind of touch-control display panel is provided, comprises the touch base plate described in above-described embodiment, array base palte and the liquid crystal layer (not shown) between described touch base plate and described array base palte; Wherein, described array base palte comprises: many grid lines and a plurality of data lines, and described grid line and the mutual arranged crosswise of data line are to form multiple display unit; And multiple thin film transistor (TFT), each thin film transistor (TFT) to be arranged in corresponding described display unit and to be electrically connected with corresponding described grid line.In this embodiment, touch-control display panel can be applied in tft liquid crystal (Thin Film Transistor Liquid Crystal Display (TFT-LCD)) display.
According to the touch-control display panel of the utility model above-described embodiment, finger touch can be used to compress and to realize voltage sensor, also can carry out elasticity of compression matrix by the magnetic repulsive force making the magnetic trigger layer be arranged on elastic matrix be subject to time writer thus realize voltage sensor, thus there are two touch controllable functions of finger touch and time writer touch-control.
In one embodiment, array base palte comprises transparency conducting layer, described first electrode and the second electrode and described transparency conducting layer by being formed with a patterning processes, can reduce the manufacture craft of the first electrode 21 and the second electrode 22 by same layer transparent conductive material like this.
In one embodiment, described array base palte comprises transparency conducting layer, described first electrode and the second electrode are positioned at the light direction side of described transparency conducting layer, are separated with transparent insulating layer between equal between described transparency conducting layer and described first electrode, between described transparency conducting layer and described second electrode.Described grid line is used as described touch-control emission line.Described grid line is used as the touch-control emission line in described touch base plate, and is electrically connected with in the first corresponding electrode and the second electrode by via hole.
Can also be applied in Organic Light Emitting Diode (organic Light Emitting Diode (OLED)) display or active-matrix Organic Light Emitting Diode (Active Matrix Organic Light Emitting Diode (AMOLED)) display according to the array base palte of the utility model exemplary.Be described for the array base palte 10 being applied to OLED display below.
In a kind of exemplary embodiment, see Fig. 1 and 2, array base palte 10 comprises: multiple transparent public electrode 18, multiple grid line 13 and multiple data line 14 and the multiple thin film transistor (TFT)s 15 driven by grid line 13.Arranged crosswise is to form multiple pixel cell 12 mutually for described grid line 13 and data line 14, and described public electrode 18 is separately positioned in display unit 12.Such as, display unit 12 comprises the redness be arranged in order sub-display unit R, green red sub-display unit G and the sub-display unit B of blueness.Each thin film transistor (TFT) 15 to be arranged in corresponding display unit 12 and to be electrically connected with corresponding grid line 13 by grid 151, and the drain electrode 152 of each thin film transistor (TFT) 15 is electrically connected with corresponding pixel electrode 11.Like this, under the driving of the high level signal on grid line 13, the conducting of corresponding thin film transistor (TFT) 15, thus the electric signal on data line is transported to pixel electrode 11.
Further, as shown in Figure 1, in each display unit, be provided with organic luminous layer (organic emission layer (EML)) 17 between public electrode 18 and pixel electrode 11, outside organic luminous layer 17, be arranged with insulation course 16.In a kind of exemplary embodiment, public electrode 18, first electrode 21 and the second electrode 22 can utilize same mask plate to be formed in a patterning processes by same transparent conductive material.This transparent conductive material comprises any one in tin indium oxide (ITO), indium zinc oxide (IZO), indium oxide zinc-tin (ITZO), tin oxide (TO).That is, public electrode 18, first electrode 21 and the second electrode 22 are arranged on same layer and are isolated from each other, and can reduce the manufacture craft of the first electrode 21 and the second electrode 22 like this.In addition, public electrode 18 arranges the flatness layer 28 be made up of transparent insulation material, to eliminate owing to arranging elastic matrix 23 and magnetic trigger layer 24 and the difference in height caused.
In a kind of exemplary embodiment, grid line 13 is used as the touch-control emission line for being electrically connected with the first electrode 11.That is, grid line 13 both provided switching signal for the grid 151 to thin film transistor (TFT) 15, also for providing touch-control to transmit to the first electrode 21 being used as touch-control emitting electrode.Like this, the wiring quantity on array base palte can be reduced, the efficiency of touching signals process can also be improved.When the first electrode 21 and the second electrode 22 are electrically connected, the drive singal of grid line 13 can be transferred to touch-control and receive line 26.The voltage receiving line 26 by detecting touch-control can determine the person's handwriting that finger touch or time writer are write.
In the interchangeable embodiment of one, as shown in Figure 9, the touch-control emission line 13 ' independent of grid line 13 can be set, and touch-control emission line 13 ' is electrically connected to the first electrode 21.
Fig. 6 is the sequential operation schematic diagram of the touch-control addressing under non-touch-control state of touch-control circuit unit according to a kind of exemplary embodiment of the present utility model; Fig. 7 is the sequential operation schematic diagram of the touch-control addressing under touch-control state of touch-control circuit unit according to a kind of exemplary embodiment of the present utility model.As in Fig. 6 and 7, G1, G2, G3......Gn represent the capable grid line sweep signal of the n of touch base plate respectively, and S1, S2, S3......Sm represent that m bar touch-control receives the row address signal on line 26 respectively.
Specifically, when touch base plate normally shows, when namely there is no the action of writing of finger touch and time writer, as shown in Figure 6, grid line 13 carries out periodic scan according to refreshing frequency, and the touch-control being connected to external signal processing unit (not shown) receives line 26 and can not signal intensity be detected.When there is the action of writing of finger touch and time writer, as shown in Figure 7, due to the rare or carbon nano-tube electrical connection by graphite of the first electrode and the second electrode, the pulse drive signal of grid line 13 can be transferred to touch-control and receive line 26 and the row address signal producing pulsed, signal processing unit can detect this row address signal, thus determines the action of writing of finger touch and the time writer occurred in this moment.But when row address signal being detected respectively on different touch-controls reception line 26, through the computing of signal processing unit, the source of these row address signals can be located respectively, determine the position of the action of writing of finger touch and the time writer occurred, thus realize multi-point touch function.
Fig. 8 is the partial sectional view of the touch base plate according to the second exemplary embodiment of the present utility model.As shown in Figure 8, in the touch base plate of the second embodiment, public electrode 18 covers transparent insulation course 29, first electrode 21 and the second electrode 22 and to be arranged on insulation course 29 and to be formed in a patterning processes by same transparent conductive material.That is, public electrode 18 is arranged on the downside of insulation course 29, and the first electrode 21 and the second electrode 22 are arranged on the upside of insulation course 29.The crosstalk of touch-control sensing unit 20 and the first electrode 21 and the second electrode 22 pairs of public electrodes 18 can be reduced like this.Further, still as shown in Figure 2, grid line 13 is used as described touch-control emission line, and is electrically connected with the first corresponding electrode 21 by the via hole (not shown) be formed in insulation course 29, and the second electrode 22 and touch-control receive line 26 and be electrically connected.In the interchangeable embodiment of one, as shown in Figure 9, the touch-control emission line 13 ' independent of grid line 13 can be set, and touch-control emission line 13 ' is electrically connected to the first electrode 21.
According to the embodiment of another aspect of the present utility model, a kind of method making touch base plate is provided to comprise the steps:
See Fig. 1-4, the first substrate 10 of such as array base palte and so on is formed interval arrange multiple first electrode 21 and multiple second electrode 22, first electrode 21 and the second electrode 22 and be electrically connected to respectively and be arranged on touch-control emission line in first substrate and touch-control receives line; On the first substrate being formed with the first electrode 21 and the second electrode 22, dopant deposition has the elastic layer of the pressure sensitive conductive material 25 of the rare or carbon nano-tube of such as graphite and so on, such as acrylate resin layer; By patterning processes, composition is carried out to form multiple elastic matrix 23 to described elastic layer; And second substrate and the first substrate being formed with elastic matrix 23 are carried out box.This second substrate can be the Trackpad 30 described in above-described embodiment.
According to the touch base plate that the method for the utility model above-described embodiment makes, when with finger 40 by be pressed in second substrate (such as Trackpad 30) upper time, elastic matrix 23 is in the contraction state be pressed, the graphite monomer that is rare or carbon nano-tube be entrained in elastic matrix 23 is orderly ordered state, because graphite is rare or carbon nano-tube has good electric conductivity, elastic matrix 23 that is rare doped with graphite or carbon nano-tube becomes and has charge-conduction function, converts status of electrically connecting between the first electrode 21 and the second electrode 22.Elastic matrix 23 is made up of elastomeric acrylate, can determine that whether touch base plate is by the mode of operation of finger presses, improves the convenience of finger touch, multi-point touch performance rapidly and accurately.
In a kind of exemplary embodiment, by patterning processes, composition is carried out to described elastic layer and comprise with the step forming multiple elastic matrix 23: deposition of magnetic material layer 24 on elastic layer; By patterning processes, composition is carried out to elastic layer and magnetic material layer 24; And utilize magnet to polarize to magnetic material layer 24, form magnetic trigger layer to make the magnetic material layer be formed on each elastic matrix 23.
According to the touch base plate that the method for the utility model above-described embodiment makes, finger touch can be used to compress and to realize voltage sensor, also can carry out elasticity of compression matrix by the magnetic repulsive force making the magnetic trigger layer be arranged on elastic matrix be subject to time writer thus realize voltage sensor, thus there are two touch controllable functions of finger touch and time writer touch-control.Due to pressure sensitive conductive material that is rare doped with such as graphite in elastic matrix or carbon nano-tube patent, the touch base plate of the utility model embodiment has had the convenience of finger touch, multi-point touch feature and the high precision of time writer touch-control, the feature of the precise manipulation such as fast recording or former person's handwriting concurrently, optimize the structure of touch base plate, more lightening touch base plate can be obtained.
In a kind of exemplary embodiment, by patterning processes, composition is carried out to described elastic layer and magnetic material layer and comprise with the step forming multiple elastic matrix: on magnetic material layer 24, deposit photoresist (not shown); Mask plate (not shown) is utilized to carry out composition by performing exposure, development and etch process to elastic layer, magnetic material layer 24 and photoresist; And stripping photoresist.Trackpad 30 and the array base palte 20 being formed with elastic layer and magnetic material layer are carried out box, thus forms the touch base plate of the utility model embodiment.
After glass photomask glue, adopt the surface of oxygen ashing array base palte, generate carbon dioxide, to improve the performance of touch base plate to make remaining material with carbon element reaction.
In a kind of exemplary embodiment, first substrate 10 is array base palte, the step that first substrate 10 is formed multiple first electrode and multiple second electrode comprises: utilize same mask plate in a patterning processes, form public electrode 18, first electrode 21 and the second electrode 22 by same transparent conductive material, and the grid line be formed on array base palte is electrically connected with the first corresponding electrode, described grid line is made to be used as described touch-control emission line.Like this, the quantity using mask plate can be reduced, simplify manufacture craft; And the wiring quantity that can reduce on array base palte, improve the efficiency of touching signals process.
In a kind of exemplary embodiment, see Fig. 8, first substrate 10 is array base palte, and the step forming multiple first electrode and multiple second electrode on the first substrate comprises: on the public electrode 18 of array base palte 10, cover transparent insulation course 29; And in a patterning processes, on described insulation course 29, form described first electrode 21 and the second electrode 22 by same transparent conductive material; And by the via hole (not shown) be formed in insulation course 29, the grid line 13 be formed on array base palte 10 is electrically connected with in the first corresponding electrode 21 and the second electrode 22, make described grid line be used as described touch-control emission line.That is, public electrode 18 is arranged on the downside of insulation course 29, and the first electrode 21 and the second electrode 22 are arranged on the upside of insulation course 29.The crosstalk of touch-control sensing unit 20 and the first electrode 21 and the second electrode 22 pairs of public electrodes 18 can be reduced like this.In addition, the quantity using mask plate can be reduced, simplify manufacture craft; And the wiring quantity that can reduce on array base palte, improve the efficiency of touching signals process.
According to the embodiment of the further utility model of the utility model, a kind of touch control display apparatus is provided, comprise the touch base plate described in above-mentioned any embodiment and time writer, one end of described time writer is provided with the contact head comprising magnetic material, and the Magnetic Phase of the magnetic of the magnetic material of described contact head and the magnetic material of magnetic trigger layer is same.Touch control display apparatus can be any product or parts with Presentation Function such as mobile phone, panel computer, televisor, display, notebook computer, digital album (digital photo frame), navigating instrument, Electronic Paper.
According to the touch-control sensing unit, touch base plate and preparation method thereof of the utility model above-described embodiment, touch-control display panel and touch control display apparatus, finger touch can be used to compress and to realize voltage sensor, also can carry out elasticity of compression matrix by the magnetic repulsive force making the magnetic trigger layer be arranged on elastic matrix be subject to time writer thus realize voltage sensor, thus there are two touch controllable functions of finger touch and time writer touch-control.Due in elastic matrix doped with graphite rare or carbon nano-tube, the touch base plate of the utility model embodiment has had the convenience of finger touch, multi-point touch feature and the high precision of time writer touch-control, the feature of the precise manipulation such as fast recording or former person's handwriting concurrently, optimize the structure of touch base plate, more lightening touch base plate can be obtained.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (19)
1. a touch-control sensing unit, is characterized in that, comprising:
From the first electrode arranged and the second electrode;
Elastic matrix, containing pressure sensitive conductive material in described elastic matrix, described elastic matrix makes described first electrode and the electrical connection of the second electrode when stress deformation; And
Trackpad, described Trackpad is arranged at the stressed side of described elastic matrix.
2. touch-control sensing unit as claimed in claim 1, is characterized in that having predeterminable range between described Trackpad and described elastic matrix.
3. touch-control sensing unit as claimed in claim 1, it is characterized in that, also comprise magnetic trigger layer, described magnetic trigger layer is arranged on the stressed side of described elastic matrix between described Trackpad and elastic matrix.
4. touch-control sensing unit as claimed in claim 1, is characterized in that, described pressure sensitive conductive material comprises that graphite is rare, at least one in carbon nano-tube, conductive black, metal powder and metal fibre.
5. touch-control sensing unit as claimed in claim 1, it is characterized in that, described elastic matrix is made up of at least one in acryl resin, EP rubbers, nitrile rubber, neoprene and silicon rubber.
6. touch-control sensing unit as claimed in claim 1, it is characterized in that, described Trackpad is made up of the material of force-applied distortion, for oppressing the distortion of described elastic matrix after stress deformation.
7. touch-control sensing unit as claimed in claim 1, it is characterized in that, described first electrode and the second electrode are multiple, described first electrode and the spaced setting of the second electrode.
8. touch-control sensing unit as claimed in claim 1, it is characterized in that, described elastic matrix all contacts with described second electrode with described first electrode.
9. the touch-control sensing unit according to any one of claim 1-6, it is characterized in that, described touch-control sensing unit is arranged on display panel, wherein, described elastic matrix is arranged on the inside surface of the upper substrate of described display panel, and described first electrode and the second electrode are arranged on the inside surface of the infrabasal plate of described display panel.
10. a touch base plate, is characterized in that, comprises multiple touch-control sensing unit as claimed in any one of claims 1-9 wherein.
11. touch base plates as claimed in claim 10, it is characterized in that, also comprise: many touch-control emission line and many touch-controls receive line, and each described first electrode is electrically connected to corresponding described touch-control emission line, and each described second electrode is electrically connected to corresponding described touch-control and receives line.
12. touch base plates as described in claim 10 or 11, it is characterized in that, described touch base plate is applied in display panels, and described touch base plate is also provided with colored light-filtering units.
13. touch base plates as claimed in claim 12, it is characterized in that, described touch base plate also comprises public electrode, and described public electrode, the first electrode and the second electrode are formed within the same layer by same transparent conductive material.
14. 1 kinds of touch-control display panels, is characterized in that, comprise the touch base plate as described in any one in claim 10-13, array base palte and as described in touch base plate and as described in liquid crystal layer between array base palte; Wherein, described array base palte comprises:
Many grid lines and a plurality of data lines, described grid line and the mutual arranged crosswise of data line are to form multiple display unit; And
Multiple thin film transistor (TFT), each thin film transistor (TFT) to be arranged in corresponding described display unit and to be electrically connected with corresponding described grid line.
15. touch-control display panels as claimed in claim 14, it is characterized in that, described array base palte comprises transparency conducting layer, described first electrode and the second electrode and described transparency conducting layer by same layer transparent conductive material by being formed with a patterning processes.
16. touch-control display panels as claimed in claim 14, it is characterized in that, described array base palte comprises transparency conducting layer, described first electrode and the second electrode are positioned at the light direction side of described transparency conducting layer, are separated with transparent insulating layer between equal between described transparency conducting layer and described first electrode, between described transparency conducting layer and described second electrode.
17. touch-control display panels as claimed in claim 14, it is characterized in that, described grid line is used as described touch-control emission line.
18. touch-control display panels as claimed in claim 17, it is characterized in that, described grid line is used as the touch-control emission line in described touch base plate, and is electrically connected with in the first corresponding electrode and the second electrode by via hole.
19. 1 kinds of touch control display apparatus, is characterized in that, comprising:
Touch-control display panel as described in any one in claim 14-18; And
Time writer, one end of described time writer is provided with the contact head comprising magnetic material, and the Magnetic Phase of the magnetic of the magnetic material of described contact head and the magnetic material of magnetic trigger layer is same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420857692.7U CN204347811U (en) | 2014-12-30 | 2014-12-30 | Touch-control sensing unit, touch base plate, touch-control display panel and touch control display apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420857692.7U CN204347811U (en) | 2014-12-30 | 2014-12-30 | Touch-control sensing unit, touch base plate, touch-control display panel and touch control display apparatus |
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| CN204347811U true CN204347811U (en) | 2015-05-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104503654A (en) * | 2014-12-30 | 2015-04-08 | 京东方科技集团股份有限公司 | Touch sensing unit, touch substrate, fabrication method thereof and touch display panel |
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2014
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104503654A (en) * | 2014-12-30 | 2015-04-08 | 京东方科技集团股份有限公司 | Touch sensing unit, touch substrate, fabrication method thereof and touch display panel |
| CN104503654B (en) * | 2014-12-30 | 2017-08-04 | 京东方科技集团股份有限公司 | Touch-control sensing unit, touch base plate and preparation method thereof and touch-control display panel |
| US9965128B2 (en) | 2014-12-30 | 2018-05-08 | Boe Technology Group Co., Ltd. | Touch sensing unit, touch substrate and method for producing the same, touch display panel and touch display apparatus |
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