CN205353969U - Touch -control assembly with pressure is listened - Google Patents
Touch -control assembly with pressure is listened Download PDFInfo
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- CN205353969U CN205353969U CN201520498634.4U CN201520498634U CN205353969U CN 205353969 U CN205353969 U CN 205353969U CN 201520498634 U CN201520498634 U CN 201520498634U CN 205353969 U CN205353969 U CN 205353969U
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Abstract
The utility model provides a touch -control assembly with pressure is listened, including a three -dimensional sensor, the electrode is listened to many touch -control electrodes and an at least pressure, many touch -control electrodes are at least including many first direction touch -control driving electrode, an and three -dimensional control ware, the three -dimensional control ware includes a driver and a drive pulse treater, the driver passes through the drive pulse treater and does an at least pressure is listened the electrode and is provided pressure scanning pulse, the driver passes through the drive pulse treater and directly or indirectly does many first direction touch -control driving electrode provides touch -control scanning pulse. Touch -control assembly with pressure is listened hardware design is simple, and the integrated level is high, and noise proof performance is good, driven method advantage such as simple.
Description
[technical field]
This utility model relates to touch-control field, particularly relates to a kind of touch-control assembly with pressure detection.
[background technology]
Development along with science and technology, touch-control assembly (touchScreenassembly) is widely used to various consumer-elcetronics devices, such as: the portable electric products such as intelligent mobile phone, tablet PC, camera, e-book, MP3 player, or be applied to the display screen of operational control unit.
Existing electronic devices adopts capacitance touching control assembly, and capacitance touching control assembly is that the electric current sensing utilizing human body is operated.Two-dimensional coordinate system (X is set up with surface, touch surface place, Y), general capacitance touching control assembly is provided with the touch control electrode of X-direction and Y-direction in this plane, when finger touches in the touch-control surface corresponding to touch control electrode, due to human body electric field, finger changes the signal of telecommunication at touch point place.Electronic equipment internal, by the accurate calculating that the touch point place signal of telecommunication is changed, draws touch point coordinate position in X-direction and Y-direction, the two-dimensional position namely determining touch point and then the display controlling electronic equipment, the operation such as redirects.
In order to enrich the function of touch-control assembly further, existing part touch-control assembly can install pressure transducer additional at present, described pressure transducer includes multiple pressure detection electrode, the pressure detection electrode sensing being positioned at touch point place can produce certain deformation by pressure thus causing the signal of telecommunication of pressure detection electrode to change from what be perpendicular to touch surface (being equivalent to Z-direction), and this detecting of electrical number be may determine that the pressure suffered by pressure detection electrode.Can be designed the functions of the equipments being matched with under different pressures value by the detecting of force value, such as under different dynamics, same touch point can mate several functions.Namely we can go abundant design from the three-dimensional perspective that touch point (X, Y) and pressure (Z) define.But, today in the increasingly lightening low price of electronic equipment, the loading of pressure transducer makes device thickness increase, and cost is substantially improved, and is provided with the touch-controlled electronic devices of pressure transducer and needs and arrange touching signals driver, pressure signal driver, touching signals processor, pressure signal processor, so, hardware designs is extremely complex, reduces the over all Integration degree of electronic equipment.
[utility model content]
For overcoming the current problem complicated with the hardware designs existing for the electronic equipment of pressure transducer, this utility model provides a kind of hardware designs simple, and what integrated level was high has the touch-control assembly of pressure detection.
This utility model provides a kind of technical scheme solving above-mentioned technical problem: a kind of touch-control assembly with pressure detection, including a three-dimension sensor, a plurality of touch control electrode and at least one pressure detection electrode, described a plurality of touch control electrode at least includes a plurality of first direction touch-control drive electrode；And a Three dimensions control device, described Three dimensions control device includes a driver and a driving pulse processor, described driver provides pressure scanning pulse by driving pulse processor for described at least one pressure detection electrode, and described driver directly or indirectly provides touch-control scanning impulse for described a plurality of first direction touch-control drive electrode by driving pulse processor.
Preferably, described driving pulse processor includes a selection circuit and/or a pulse reformation circuit, wherein said driver, described selection circuit and described pulse reformation circuit and described at least one pressure detection electrode is sequentially connected electrically.
Preferably, described Three dimensions control device farther includes a touching signals and receives module, one pressure signal receives module and an integrated processor, and described a plurality of touch control electrode farther includes a plurality of second direction touch-control and receives electrode, described a plurality of second direction touch-control receives electrode and is electrically connected to described touching signals reception module, described pressure detection electrode is electrically connected to described pressure signal and receives module, and described touching signals receives module and is electrically connected to described integrated processor with described pressure signal reception module.
Preferably, described at least one pressure detection electrode is a plurality of pressure detection electrode, the each corresponding internal resistance of a plurality of pressure detection electrode is RF0, RF1, RF2 ... RFn, the resistance RC0 mated one by one with it it is arranged around at described a plurality of pressure detection electrode, RC1, RC2 ... RCn, RF0, RF1, RF2 ... RFn and RC0, RC1, RC2 ... RCn is reference resistance each other, the described touch-control assembly with pressure detection farther includes a pressure signal processor, this pressure signal processor includes a resistance Ra, one resistance Rb, multiplexer MUX1 and multiplexer MUX2, RF0, RF1, RF2 ... RFn accesses the input of described multiplexer MUX1, RC0, RC1, RC2 ... RCn accesses the input of described multiplexer MUX2, described multiplexer MUX1 and MUX2 selects resistance RFn and the RCn output matched respectively and constitutes Wheatstone bridge with resistance Ra and Rb, described RF0, RF1, RF2 ... RFn change in resistance amount and its suffered being associated by force value.
Preferably, described a plurality of touch control electrode and described at least one pressure detection electrode are arranged in same plane, described a plurality of touch control electrode farther includes a plurality of second direction touch-control being parallel to each other and receives electrode, described a plurality of first direction touch-control drive electrode and the described a plurality of second direction touch-control being parallel to each other receive between electrode in a certain angle, it is provided with non-touch-control district between described a plurality of first direction touch-control drive electrode, described at least one pressure detection electrode is arranged in this non-touch-control district, described at least one pressure detection electrode, described a plurality of first direction touch-control drive electrode and the described a plurality of second direction touch-control being parallel to each other receive and have overlapping region between electrode, it is provided with in described overlapping region and receives the collets between electrode at described a plurality of first direction touch-control drive electrode and the described a plurality of second direction touch-control being parallel to each other.
Preferably, described a plurality of touch control electrode and described at least one pressure detection electrode are arranged in same plane, described a plurality of touch control electrode farther includes a plurality of second direction touch-control and receives electrode, described a plurality of first direction touch-control drive electrode and described a plurality of second direction touch-control receive no overlap region between electrode, between described a plurality of first direction touch-control drive electrode, or a plurality of second direction touch-control receives between electrode, or a plurality of first direction touch-control drive electrode and a plurality of second direction touch-control receive and are provided with non-touch-control district between electrode, described at least one pressure detection electrode is arranged in described non-touch-control district.
Preferably, described a plurality of touch control electrode farther includes a plurality of second direction touch-control and receives electrode, described a plurality of first direction touch-control drive electrode receives electrode from described a plurality of second direction touch-control and is positioned on different substrate layers or is arranged on the Different Plane of same substrate layer, having non-touch-control district between described a plurality of first direction touch-control drive electrode, described at least one pressure detection electrode is arranged in described non-touch-control district.
Preferably, described at least one pressure detection electrode is a plurality of pressure detection electrode, the described touch-control assembly with pressure detection includes at least one first shell of compression and one second shell of compression, described first shell of compression and described second shell of compression are provided with described at least one pressure detection electrode, have at least the first shell of compression and touch control electrode to be generally aligned in the same plane.
Preferably, described at least one pressure detection electrode is a plurality of pressure detection electrode, the described touch-control assembly with pressure detection farther includes a pressure signal processor, described pressure signal processor includes the pressure detection electrode adjacent by two and resistance Ra and the resistance Rb Wheatstone bridge constituted and an operational amplification circuit, one of described two adjacent pressure detection electrodes are as the reference of another pressure detection electrode, the noise resistance variable signal that a pressure detection electrode in described two adjacent pressure detection electrodes causes because of noise effect be connected with the input in the same direction of operational amplification circuit after reversely at the reverse input end of operational amplification circuit described in the noise resistance variable signal that causes because of noise effect of another pressure detection electrode offset.
Preferably, described Three dimensions control device is integrated on a chip.
Compared with prior art, the touch-control assembly with pressure detection provided by the utility model has the advantage that
1. this touch-control assembly with pressure detection can not only detect touch point position, and can detect the force value of touch point.Touch sensing is driven by same driver with pressure transducer, which save hardware cost, simplify circuit design, improve the integrated level of the touch-control assembly with pressure detection, and reduce thickness and the weight of the touch-control assembly with pressure detection to a certain extent.Touch sensing is close with on the conductive line structure of pressure transducer, different drivers is adopted respectively touch sensing and pressure transducer to be driven compared to prior art, its design space is compared little, the arrangement of components and parts is unfavorable for heat radiation closely, and this utility model then solves these problems well.
2. what adopt due to capacitance touching control assembly is that the principle of human induction current carries out touch point detection, and when touch control electrode is arranged on same substrate layer with pressure detection electrode, arrangement between components and parts and conductor wire etc. is very close, interfering very serious and causing touch point position detecting and/or not accurate by force value detecting between signal.The driving signal by selection circuit and/or pulse reformation circuit, driver exported dexterously in this utility model carry out processing with reach same driver can for touch sensing and the pressure transducer corresponding scanning impulse of offer, and drive signal to carry out displacement through selection circuit and/or pulse reformation circuit, pulsewidth constriction and frequency dividing etc. can timesharing sequences or carry out with sequential between the pressure scanning pulse and the touch-control scanning impulse that provide after processing, during with sequential, pressure scanning pulse and touch-control scanning impulse carry out simultaneously, but the current potential switching point mutual dislocation between them, so make the touch-control assembly response speed with pressure detection fast, interference between signal reduces, touch-control stability is better.When timesharing sequence, pressure scanning pulse and touch-control scanning impulse carry out at times, therefore, the interference between electric signal reduces too, and the touch-control stability of the touch-control assembly with pressure detection is significantly promoted.
3. adopting Wheatstone bridge to detect by force value in this utility model, its circuit structure is simple, and control accuracy is high.Most important described pressure signal processor adopt electric bridge be combined with multiplexer, different pressure detection electrodes is selected by multiplexer, but in the Wheatstone bridge that different pressures detecting electrode is constituted when detecting pressure force signal, resistance Ra and Rb is for sharing resistance, so design can be greatly reduced the resistance quantity in Wheatstone bridge, and different pressures detecting electrode is when carrying out pressure detection, owing to its fractional hardware is shared, therefore error rate each other reduces.Further, internal resistance RF0, the RF1 corresponding to described pressure detection electrode, RF2 ... RFn one_to_one corresponding is provided with RC0, RC1, RC2 ... RCn is as reference resistance, this reference resistance is arranged on RF0, RF1, RF2 ... near RFn, so, the temperature that is subject between them affects consistent, and other noises being subject to also are similar to, and are so conducive to stablizing of Wheatstone bridge, reduce hardware circuit because of own temperature drift, the signal erroneous judgement that environmental factors is brought.RF0, RF1, RF2 ... RFn and RC0, RC1, RC2 ... RCn is reference resistance each other, optimize the configuration of resource while so reducing noise.The output signal end of Wheatstone bridge is connected to operational amplification circuit, and described operational amplification circuit is possible not only to be amplified output signal U 0, and it can utilize operational amplification circuit to suppress the characteristic of noise to reduce noise.Illustrate for RF0 and RC0, when the depressed power of upper substrate, RF0 resistance change is △ r, but actually RF0 is subject to produce △ s such as temperature and other interference (△ s being noise resistance variable signal, it includes a part and comes from noise that variations in temperature brings and the interference noise that a part comes between the signal of telecommunication) noise, for reference resistance RC0, it is subject to as consistent with its neighbouring RF0 in temperature and other interference, size is also the noise of △ s, namely this noise △ s offsets with the noise suffered by the RF0 of input in the same direction after reversely at the reverse input end of operational amplification circuit, after operational amplification circuit, △ r is not only made to expand twice, also eliminate the noise that can produce △ s such as temperature and other interference, improve further by the detecting precision of force value.
4. in this utility model, in the non-touch-control district of touch control electrode, pressure detection electrode is set, pressure detection electrode and touch control electrode can be integrated in same plane by arranging of collets by it, the thickness of the touch-control assembly with pressure detection is so greatly reduced, especially complementary between touch control electrode and pressure detection electrode arrange, it is possible to make to have the display effect of the touch-control assembly of pressure detection more preferably.
[accompanying drawing explanation]
Fig. 1 is the layer structure schematic diagram that this utility model first embodiment has the touch-control assembly of pressure detection.
Fig. 2 is the planar structure schematic diagram that this utility model first embodiment has the electrode pattern layer of the touch-control assembly of pressure detection.
Fig. 3 is the structure for amplifying schematic diagram at A place in Fig. 2.
Fig. 4 A is the circuit structure module diagram that this utility model first embodiment has the touch-control assembly of pressure detection.
Fig. 4 B is the circuit structure module diagram that this utility model the first variant embodiment has the touch-control assembly of pressure detection.
Fig. 5 is that this utility model first embodiment has the touch-control scanning impulse of the touch-control assembly of pressure detection and the sequential chart of pressure scanning pulse.
Fig. 6 is the electrical block diagram of pressure signal processor in Fig. 4 A.
Fig. 7 is pressure signal detecting schematic diagram in Fig. 6.
Fig. 8 is that this utility model the second embodiment has the touch-control scanning impulse of the touch-control assembly of pressure detection and the sequential chart of pressure scanning pulse.
Fig. 9 is that this utility model the 3rd embodiment has the touch-control scanning impulse of the touch-control assembly of pressure detection and the sequential chart of pressure scanning pulse.
Figure 10 a and Figure 10 b is that this utility model the 4th embodiment has the touch-control scanning impulse of the touch-control assembly of pressure detection and the sequential chart of pressure scanning pulse.
Figure 11 is that this utility model the 5th embodiment has the touch-control scanning impulse of the touch-control assembly of pressure detection and the sequential chart of pressure scanning pulse.
Figure 12 is the circuit structure module diagram that this utility model sixth embodiment has the touch-control assembly of pressure detection.
Figure 13 is that this utility model sixth embodiment has the touch-control scanning impulse of the touch-control assembly of pressure detection and the sequential chart of pressure scanning pulse.
Figure 14 is the planar structure schematic diagram that this utility model the 7th embodiment has the electrode pattern layer of the touch-control assembly of pressure detection.
Figure 15 is the layer structure schematic diagram that this utility model the 8th embodiment has the touch-control assembly of pressure detection.
Figure 16 is the planar structure schematic diagram of electrode pattern layer in Figure 15.
Figure 17 is the layer structure schematic diagram that this utility model the 9th embodiment has the touch-control assembly of pressure detection.
Figure 18 is that this utility model the 9th embodiment has the touch-control scanning impulse of the touch-control assembly of pressure detection and the sequential chart of pressure scanning pulse.
Figure 19 is that this utility model the tenth embodiment has the touch-control scanning impulse of the touch-control assembly of pressure detection and the sequential chart of pressure scanning pulse.
[detailed description of the invention]
In order to make the purpose of this utility model, technical scheme and advantage are clearly understood, below in conjunction with accompanying drawing and embodiment, this utility model are further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.
Refer to Fig. 1, this utility model first embodiment has the touch-control assembly (touchScreenassembly) 10 of the pressure detection (relative position that the position word such as upper and lower left and right involved in this utility model is only limitted in given view from top to bottom, but not absolute position) include a upper substrate 11, one laminating layer 12, one electrode pattern layer 13, one substrate layer 14, and a signal processing circuit 15, it is connected by conductor wire (scheme depending on) between described electrode pattern layer 13 and signal processing circuit 15.
Described upper substrate 11 is it can be assumed that for the touch cover plate on our conventional touch assembly, so-called cover plate includes a touch operation surface and an assembly installed surface, its touch operation surface carries out touch control operation for finger or pointer etc., and assembly installed surface is then used for installing touch control electrode assembly or display module etc..Upper substrate 11 material can be PEEK (polyetheretherketone polyether-ether-ketone), PI (Polyimide polyimides), PET (polyethyleneterephthalate polyethylene terephthalate), PC (Merlon Merlon), PES (polyethylene glycol succinate, PMMA (polymethyl methacrylate polymethylmethacrylate) and arbitrarily both material such as complex.
Laminating layer 12 can select OCA (Optical transparent adhesive, OpticalClearAdhesive) or LOCA (Liquid optical clear adhesive, LiquidOpticalClearAdhesive).
The material of substrate layer 14 can be flexible parent metal, it can also be rigid substrate, such as glass, strengthening glass, sapphire glass, PI (polyimides), PC (Merlon), polyether sulfone (PES), polymethyl methacrylate (PMMA), acryl, acrylic nitrile-butadiene-styrene (ABS), polyamide (PA), polybenzimidazoles polybutene (PB), polybutylene terephthalate (PBT) (PBT), polyester (PE), polyether-ether-ketone (PEEK), Polyetherimide (PEI), Polyetherimide, polyethylene (PE), polyethylene terephthalate (PET), polystyrene (PS), politef (PTFE), polyurethane (PU), polrvinyl chloride (PVC) L-type polylactic acid (PLLA) etc..Substrate layer 14 is as the bearing bed of electrode pattern layer 13, and it fits in the lower surface of upper substrate 11 by laminating layer 12.
Described signal processing circuit 15 is arranged on the lower section of substrate layer 14, and its position is not construed as limiting, and it can also be arranged at above substrate layer 14 or its side.
Referring to Fig. 2 and Fig. 3, electrode pattern layer 13 is provided with a three-dimension sensor (non-label), described three-dimension sensor includes pressure transducer 16 and a touch sensing 17, and this pressure transducer 16 includes at least one pressure detection electrode 161.This touch sensing 17 includes touch control electrode: arrange a plurality of first direction touch-control drive electrode 171 in the X direction, and a plurality of second direction touch-control in the Y direction receives electrode 172 and (receives electrode 172 for 171,4 second direction touch-controls of 4 first direction touch-control drive electrodes respectively in Fig. 2 and 4 pressure detection electrodes 161 carry out schematically illustrate, actually, quantity is not limited as, and the quantity of pressure detection electrode 161 can also receive the quantity of electrode 172 fewer of more than first direction touch-control drive electrode 171 or second direction touch-control).In the present embodiment, described X-direction is orthogonal with Y-direction, but the angle angle of X and Y-direction is not construed as limiting.It is orthogonal that the described a plurality of first direction touch-control drive electrode 171 being arranged parallel to each other receives electrode 172 with a plurality of second direction touch-control being arranged parallel to each other, at both overlapping region places, first direction touch-control drive electrode 171 and second direction touch-control receive and are provided with collets 173 between electrode 171.Except overlapping region, it is provided with non-touch-control district 174 between a plurality of first direction touch-control drive electrode 171, described pressure detection electrode 161 is located in this non-touch-control district 174, collets 173 equally exist at the overlapping region receiving electrode 172 with second direction touch-control at pressure detection electrode 161, namely described collets 173 are by first direction touch-control drive electrode 171, second direction touch-control receives the mutually overlapping region overlay between electrode 172 and pressure detection electrode 161, so that first direction touch-control drive electrode 171, second direction touch-control receives and is electrically insulated between electrode 172 and pressure detection electrode 161.Best, the shape of described pressure detection electrode 161 receives electrode 172 shape complementarity with first direction touch-control drive electrode 171 and second direction touch-control.It can be ITO or metal conductive wire or nano-silver thread conductive layer that pressure detection electrode 161, first direction touch-control drive electrode 171 and second direction touch-control receive electrode 172 material.
Referring to Fig. 4 A, signal processing circuit 15 includes Three dimensions control device 18 and a pressure signal processor 19, and pressure signal processor 19 and Three dimensions control device 18 are electrically connected.Pressure transducer 16 is electrically connected at Three dimensions control device 18 and pressure signal processor 19.Touch sensing 17 is electrically connected at Three dimensions control device 18.
The pressure signal that pressure transducer 16 transmits is processed by pressure signal processor 19, and it includes electric bridge 191 and a multiplexer 192, and this multiplexer 192 is electrically connected at electric bridge 191.
Three dimensions control device 18 includes a driver 181, one driving pulse processor 187, one touching signals receives module 182, one pressure signal receives module 183 and an integrated processor 186, described driving pulse processor 187 includes a selection circuit 184, one pulse reformation circuit 185, selection circuit 184 processes for the driving signal that driver 181 is exported with pulse reformation circuit 185.Drive signal through selection circuit 184 and pulse reformation circuit 185 provide for pressure transducer 16 pressure scanning pulse with control suffered by detecting pressure force detection electrode 161 by force value when sequence.Driver 181 directly provides touch-control scanning impulse to control the sequential of detecting touch point position for touch sensing 17 by selection circuit 184.This signal of telecommunication is transmitted to pressure signal processor 19 after detecting pressure signal by pressure transducer 16, and described pressure signal processor 19 is transmitted to the pressure signal in Three dimensions control device 18 again and receives module 183 after this pressure signal is processed.This signal is passed to touching signals after detecting touching signals and receives module 182 by touch sensing 17.Touching signals is received the signal of telecommunication of module 182 and pressure signal reception module 183 and carries out the process such as computing by integrated processor 186.
Selection circuit 184 selects segment drive signal (first group of sequential) to transmit to touch sensing 17 as touch-control scanning impulse from driver 181, and selection circuit 184 selects another segment drive signal (second group of sequential) transmission to pulse reformation circuit 185 and to pass through pulse reformation circuit 185 and carry out after signal processing output pressure scanning impulse to pressure transducer 16 from driver 181.
Selection circuit 184 is from driving selection segment drive signal output signal, and pulse reformation circuit 185 can carry out displacement, pulsewidth constriction to exporting in driver 18 and/or selection circuit 184 signal, and frequency dividing etc. processes.Referring to Fig. 4 B, deform as one, driver 181 directly provides touch-control scanning impulse for touch sensing 17, provides pressure scanning pulse for pressure transducer 16 after driving the chosen circuit 184 of signal and pulse reformation circuit 185.Actually driving pulse processor 187 can also only arrange pulse reformation circuit 185/ or selection circuit 184, completes to drive the process of signal by selection circuit 184 or pulse reformation circuit 185.Pressure signal processor 19 can be provided separately with Three dimensions control device 18, it is preferable that arranges on the same chip.
Refer to Fig. 5, driver 18 provides and drives signal, described driving signal through selection circuit 184 and pulse reformation circuit 185 it is exported its drive signal process to be formed touch-control scanning impulse as shown in Figure 5 and pressure scanning pulse sequence figure (in all sequential charts of this utility model only with specific several groups of sequential charts to represent the variation tendency of the signal of telecommunication, the sequential chart quantity Matching of its reality is in first direction touch-control drive electrode 171, second direction touch-control receives electrode 172 and pressure detection electrode 161), Vt_1, Vt_2 and Vt_3 represents the touch-control scanning impulse of three different first direction touch-control drive electrodes 171 and updates sequential, touch control electrode detects the touch point position of finger or pointer etc. according to touch-control scanning impulse sequential；Vf_1, Vf_2 and Vf_3 represent the pressure scanning pulse of three different pressure detection electrodes and update sequential, and pressure detection electrode 161 detects the size pressing pressure suffered by touch point place according to pressure scanning pulse sequence.Mutually staggering between described touch-control scanning impulse and pressure scanning pulse, alternate without time slot, the rwo timesharing sequence carries out and can avoid electrical interference each other.
Refer to Fig. 6, pressure signal processor 19 includes electric bridge 191 and a multiplexer 192, multiplexer 192 includes the first multiplexer MUX1, second multiplexer MUX2, electric bridge 191 (resistance RF0, resistance RC0 and resistance Ra and Rb constitutes Wheatstone bridge) include at least one resistance Ra, at least one resistance Rb and an operational amplification circuit (non-label), the outfan of the first multiplexer MUX1 and the second multiplexer MUX2 is electrically connected with the in-phase input end in operational amplification circuit and reverse input end as the input signal U0 of operational amplification circuit, the outfan of operational amplification circuit is connected to filter circuit 193 and adc circuit 194, the signal of telecommunication that such operational amplification circuit exports can pass through to be transferred to adc circuit 194 again after filter circuit 193 carries out denoising and carry out analog digital conversion.The outfan of the first multiplexer MUX1 is connected to one end of resistance Ra, and the other end of resistance Ra is electrically connected at the positive terminal VEX+ of driving source；The outfan of the second multiplexer MUX2 is connected to one end of resistance Rb, and the other end of resistance Rb is electrically connected at the positive terminal VEX+ of driving source.In related embodiment, driving source build employing single supply or dual power supply mode but and non-limiting, and encourage signal can adopt square wave, sine wave or determine the suitable given signals such as voltage signal, signal kenel is not also limited；Preferably, driving source preferably can adopt the signal that the pressure scanning pulse of each embodiment disclosed tool square wave kenel scanning impulse formula herein provides as driving source, pressure transducer 16 is encouraged and detects change.
What the input of the first multiplexer MUX1 connected is first group of multiple pressure detection electrode 161 of pressure transducer 16, the internal resistance of described first group of multiple pressure detection electrode 161 correspondence is RF0, RF1, RF2 ... RFn, user touch upper substrate 11 produce certain pressure time, it is positioned at internal resistance RF0, RF1, the RF2 corresponding to the multiple pressure detection electrode 161 of first group under upper substrate 11 ... RFn resistance can change.First multiplexer MUX1 can select RF0, RF1, RF2 ... one of them resistance of RFn inputs as it.
What the input of the second multiplexer MUX2 connected is second group of multiple pressure detection electrode 161 of pressure transducer 16, the internal resistance of described second group of multiple pressure detection electrode 161 is RC0, RC1, RC2 ... RCn, itself and RF0, RF1, RF2 ... RFn mates one by one and is disposed adjacent, for example RC0 is arranged near RF0, and RC1 is arranged near RF1, and so on.Resistance RC0, RC1, RC2 ... RCn is respectively as RF0, RF1, RF2 ... the reference resistance of RFn and arrange, the second multiplexer MUX2 can select RC0, RC1, RC2 ... one of them resistance of RCn inputs as it.At RF0, RF1, RF2 ... during pressure detection electrode 161 depressed power corresponding to RFn, RC0, RC1, RC2 ... RCn is as RF0, RF1, RF2 ... the reference resistance of RFn；Otherwise RC0, RC1, RC2 ... during pressure detection electrode 161 depressed power corresponding to RCn, RF0, RF1, RF2 ... RFn is RC0, RC1, RC2 ... the reference resistance of RCn and their one end connect the positive terminal VEX-of driving source.
Refer to Fig. 7, select RF0 and the second multiplexer MUX2 to select RC0 that the operation principle of pressure transducer 16 is illustrated for the first multiplexer MUX1.Described resistance RF0, resistance RC0 and resistance Ra and Rb constitute Wheatstone bridge, and without the pressing masterpiece used time, Wheatstone bridge is in poised state.Driving source provides regulated power supply for electric bridge 191, and described regulated power supply is left out its both positive and negative polarity polarity when accessing, preferred D.C. regulated power supply in the present embodiment.When user operates at upper substrate 11, upper substrate 11 is had one by pressure by it, corresponding RF0 in described pressure detection electrode 161, RF1, RF2 ... the one or more resistance of RFn changes, so, Wheatstone bridge balance is broken and causes that output signal of telecommunication U0 must change, the change of different resistances correspond to different force value, therefore, namely can draw corresponding force value by the output signal U 0 of Wheatstone bridge being calculated and processing.It practice, the fixed resistance that we can also be arranged as required to share is to replace RC0, RC1, RC2 ... RCn.
Compared with prior art, the touch-control assembly 10 with pressure detection provided by the utility model has the advantage that
1. this touch-control assembly 10 with pressure detection can not only detect touch point position, and can detect the force value of touch point.Touch sensing 17 is driven by same driver 181 with pressure transducer 16, which save hardware cost, simplify circuit design, improve the integrated level of the touch-control assembly 10 with pressure detection, and reduce thickness and the weight of the touch-control assembly 10 with pressure detection to a certain extent.Touch sensing 17 is close with on the conductive line structure of pressure transducer 16, if adopting different drivers 181 respectively touch sensing 17 and pressure transducer 16 to be driven, its design space is compared little, the arrangement of components and parts is unfavorable for heat radiation closely, and this utility model then solves this problem well.
2. what adopt due to capacitance touching control assembly is that the principle of human induction current carries out touch point detection, and when touch control electrode is arranged on same substrate layer 14 with pressure detection electrode 161, arrangement between components and parts and conductor wire etc. is very close, mutually very serious between signal and cause that touch point detection position is not accurate.Driving signal driver 181 exported by selection circuit 184 and/or pulse reformation circuit 185 cleverly in this utility model carries out processing can provide corresponding scanning impulse for touch sensing 17 with pressure transducer 16 reaching same driver 181, and drive signal to carry out displacement through selection circuit 184 and/or pulse reformation circuit 185, pulsewidth constriction and frequency dividing etc. can timesharing sequences or carry out with sequential between the pressure scanning pulse and the touch-control scanning impulse that provide after processing, during with sequential, pressure scanning pulse and touch-control scanning impulse carry out simultaneously, but the current potential switching point mutual dislocation between them, so make touch-control assembly 10 response speed with pressure detection fast, interference between signal reduces, touch-control stability is better.When timesharing sequence, pressure scanning pulse and touch-control scanning impulse carry out at times, therefore, the interference between electric signal reduces too, and the touch-control stability of the touch-control assembly 10 with pressure detection is significantly promoted.
3. adopting Wheatstone bridge to detect by force value in this utility model, its circuit structure is simple, and control accuracy is high.Most important described pressure signal processor 19 adopt electric bridge 191 be combined with multiplexer 192, different pressure detection electrodes 161 is selected by multiplexer 192, but in the Wheatstone bridge that different pressures detecting electrode 161 is constituted when detecting pressure force signal, resistance Ra and Rb is for sharing resistance, so design can be greatly reduced the resistance quantity in Wheatstone bridge, and different pressures detecting electrode 161 is when carrying out pressure detection, owing to its fractional hardware is shared, therefore error rate each other reduces.Further, internal resistance RF0, the RF1 corresponding to described pressure detection electrode 161, RF2 ... RFn one_to_one corresponding is provided with RC0, RC1, RC2 ... RCn is as reference resistance, this reference resistance is arranged on RF0, RF1, RF2 ... near RFn, so, the temperature that is subject between them affects consistent, and other noises being subject to also are similar to, and are so conducive to stablizing of Wheatstone bridge, reduce hardware circuit because of own temperature drift, the signal erroneous judgement that environmental factors is brought.RF0, RF1, RF2 ... RFn and RC0, RC1, RC2 ... RCn is reference resistance each other, optimize the configuration of resource while so reducing noise.The output signal end of Wheatstone bridge is connected to operational amplification circuit, and described operational amplification circuit is possible not only to be amplified output signal U 0, and it can utilize operational amplification circuit to suppress the characteristic of noise to reduce noise.Illustrate for RF0 and RC0, when upper substrate 11 depressed power, RF0 resistance change is △ r, but actually because noise effect is subject to producing △ s such as temperature and other interference, (△ s is noise resistance variable signal to RF0, it includes a part and comes from noise that variations in temperature brings and the interference noise that a part comes between the signal of telecommunication) noise, for reference resistance RC0, it is subject to as consistent with its neighbouring RF0 in temperature and other interference, size is also the noise of △ s, namely this noise △ s offsets with the noise of the varistor RF0 of input in the same direction after reversely at the reverse input end of operational amplification circuit, after operational amplification circuit, △ r is not only made to expand twice, also eliminate the noise that can produce △ s such as temperature and other interference, improve the detecting precision of pressure signal further.All can use it practice, offset maneuver in the noise that operational amplification circuit is possible, for instance, U=A ((V+)-(V-))=A ((V△r+V△s)-(-V△r+V△s))=2AV△rWhat △ s system was not affected by backward voltage and existed outside causes noise effect; wherein use differential amplifier or amplifier combination to be all the maneuver that this utility model can adopt, be not limited thereto, as long as the outside circuit causing noise effect of preventing is abide by the law is all this utility model protection domain.
4. in the present embodiment, in the non-touch-control district 174 of touch control electrode, pressure detection electrode 161 is set, pressure detection electrode 161 and touch control electrode can be integrated in same plane by arranging of collets 173 by it, the thickness of the touch-control assembly 10 with pressure detection is so greatly reduced, especially complementary between touch control electrode and pressure detection electrode 161 arrange, it is possible to make to have the display effect of the touch-control assembly 10 of pressure detection more preferably.
Refer to Fig. 8, this utility model the second embodiment provides a kind of touch-control assembly (all non-label) with pressure detection, described have the touch-control assembly of pressure detection and the difference is that only of the touch-control assembly 10 with pressure detection of first embodiment: described touch-control scanning impulse is different with the sequential chart of pressure scanning pulse, touch-control scanning impulse and pressure scanning pulse timesharing sequence carry out in the present embodiment, the pulsewidth after treatment of pressure scanning pulse narrows, so, time slot is there is between adjacent pressure scanning pulse and touch-control scanning impulse, for example, in Vt_1, touch-control scanning impulse is at t1 and t2 moment switching electric potential, in Vf_1, pressure scanning pulse is less than touch-control scanning impulse pulsewidth, it is at t3 and t4 moment switching electric potential point, t1 < t2 < t3 < t4, namely when touch-control scanning impulse current potential switches, the pressure scanning pulse signal of pressure detection electrode is also not actuated, and at the current potential switching point of touch-control scanning impulse, touch control electrode is easily subject to the interference in the external world and causes touch point detection not accurate, the present embodiment then makes the current potential switching point dislocation of the rwo avoid interfering of the signal of telecommunication between pressure transducer 16 and touch sensing 17 by arranging certain gap in adjacent pressure scanning pulse and touch-control scanning impulse.
Refer to Fig. 9, this utility model the 3rd embodiment provides a kind of touch-control assembly (all non-label) with pressure detection, described have the touch-control assembly of pressure detection and the difference is that only of the touch-control assembly 10 with pressure detection of first embodiment: described touch-control scanning impulse is different with the sequential chart of pressure scanning pulse, in the present embodiment, touch-control scanning impulse and pressure scanning pulse timesharing sequence carry out, 1 pressure scanning pulse includes multiple short pulse and rushes to reduce noise, Fig. 9 only illustrates for 3 short pulse punchings, the punching of described short pulse can also be 2 or multiple.
Refer to Figure 10 a and Figure 10 b, this utility model the 4th embodiment provides a kind of touch-control assembly (all non-label) with pressure detection, the difference is that only of the touch-control assembly 10 with pressure detection of the described touch-control assembly with pressure detection and first embodiment: in the present embodiment, touch-control scanning impulse and pressure scanning pulse carry out with sequential, in figure loa, the pulsewidth of pressure scanning pulse narrows to stagger the current potential switching point of touch-control scanning impulse, for example, in Vt_1, touch-control scanning impulse is at t11 and t21 moment switching electric potential, in Vf_1, pressure scanning pulse is less than touch-control scanning impulse pulsewidth in Vt_1, it is at t31 and t41 moment switching electric potential point, t11 < t31, t21 > t41.Namely when touch-control scanning impulse current potential switches, the pulse signal of pressure transducer is also not actuated, even if creating interference signal, also avoids the possibility interfered between them.And at the current potential switching point place of pressure scanning pulse, touch-control scanning impulse is in signal stable phase, therefore, pressure scanning pulse is little to its interference.In Figure 10 b, equally also by avoiding current potential switching point to avoid interfering between the signal of telecommunication, in Figure 10 b, between pressure scanning pulse and touch-control scanning impulse, current potential switching point has been also carried out dislocation, and pressure scanning pulse includes multiple short pulse and rushes to reduce noise.
In all embodiments of this utility model, with sequential, namely what is called refers to that, within a working cycle (current potential is " 1 ") of touch-control scanning impulse, the working cycle of pressure scanning pulse exists overlapping (end points not including sequential chart is overlapping) with it.Otherwise, then for timesharing sequence.
Refer to Figure 11, this utility model the 5th embodiment provides a kind of touch-control assembly (all non-label) with pressure detection, the difference is that only of the touch-control assembly with pressure detection of the described touch-control assembly with pressure detection and first embodiment: the pulsewidth of pressure scanning pulse narrows, the current potential switching point of its touch-control scanning impulse that staggered, its pulse frequency is lower than the frequency of touch-control scanning impulse.The rate of scanning of touch control electrode is required to be greater than equal to its rate of scanning to pressure detection electrode by the touch-control assembly owing to having pressure detection, therefore, reduce the equally possible purpose reaching pressure detection of rate of scanning of pressure scanning pulse relative to the rate of scanning of touch-control scanning impulse, and which decrease the energy consumption of the touch-control assembly of pressure detection.Touch-control scanning impulse frequency can adjust 1-20 times of pressure scanning pulse frequency.
Refer to Figure 12, this utility model sixth embodiment provides a kind of touch-control assembly (non-label) with pressure detection, the difference is that only of the touch-control assembly 10 with pressure detection of the described touch-control assembly with pressure detection and first embodiment: the driving pulse processor 687 of this touch-control assembly with pressure detection includes multiplexer circuit and pulse reformation circuit: the first selection circuit 684a, first pulse reformation circuit 685a, second selection circuit 684b, second pulse reformation circuit 685b ... the n-th selection circuit 684n and the n-th pulse reformation circuit 685n, different group MUX and pulse reformation circuit provide pumping signal for different touch control electrode with pressure detection electrode.
Refer to Figure 13, illustrate for the touch-control scanning impulse that driving pulse processor 687 is exported by 2 groups of touch control electrode and pressure detection electrode (non-label) with pressure scanning pulse, setting Vt_1 and Vt_2 is the first direction touch-control drive electrode 1 on touch sensing 66 and the scanning pulse signal received by first direction touch-control drive electrode 2 respectively, setting Vf_1 and Vf_2 is the pressure detection electrode 1 on pressure transducer 67 and the pressure scanning pulse signal received by pressure detection electrode 2 respectively, touch-control scanning impulse and pressure scanning pulse timesharing sequence carry out, one pulse period of touch-control scanning impulse is tz, it is rushed td by multiple short pulse and forms, ts (ts < tz is there is between touch-control scanning impulse take-off potential switching point between first direction touch-control drive electrode 1 and first direction touch-control drive electrode 2, ts ≠ ntd, n is positive integer) delay, therefore, the current potential switching point of the touch-control scanning impulse between first direction touch-control drive electrode 1 and first direction touch-control drive electrode 2 has misplaced, when t12, first direction touch-control drive electrode 1 switching electric potential, now, first direction touch-control drive electrode 2 does not operate, now will not produce interfering between signal, in the t22 moment, first direction touch-control drive electrode 2 switching electric potential, but the touch-control scanning impulse that first direction touch-control drive electrode 1 now receives is relatively stable, interference effect is inconspicuous.Same, pressure scanning pulse between pressure detection electrode 1 and pressure detection electrode 2 has been also carried out the dislocation of current potential switching point, and so, the electric signal interference between multiple pressure detection electrodes reduces.Current potential switching point dislocation technology in the present embodiment is equally applicable to other embodiments.
Refer to Figure 14, this utility model the 7th embodiment provides a kind of touch-control assembly (non-label) with pressure detection, the difference is that only of the touch-control assembly 10 with pressure detection of the described touch-control assembly with pressure detection and first embodiment: no overlap region between described touch control electrode (non-label), namely first direction touch-control drive electrode 771 and second direction touch-control receive no overlap region between electrode 772, and it is provided with pressure detection electrode 761 in the non-touch-control district 774 formed between the rwo, so can avoid between touch control electrode, because of the problem of the overlapping circuit easy fracture brought between touch control electrode and pressure detection electrode 761.Best, described first direction touch-control drive electrode 771, second direction touch-control receive complementary design between electrode 772 and pressure detection electrode 761.The pattern form that first direction touch-control drive electrode 771 receives electrode 772 with second direction touch-control is not construed as limiting, and it can be rectangle, triangle or other irregular shapes.
Refer to Figure 15, this utility model the 8th embodiment provides a kind of touch-control assembly 80 with pressure detection, the difference is that only of the touch-control assembly 10 with pressure detection of the described touch-control assembly 80 with pressure detection and first embodiment: this touch-control assembly 80 with pressure detection includes a upper substrate 81 from top to bottom, one laminating layer 82, one first electrode pattern layer 83, one first substrate layer 84, one second electrode pattern layer 86, one second substrate layer 87 and a signal processing circuit 85, first substrate layer 84 and the second substrate layer 87 are respectively as the bearing bed of the first electrode pattern layer 83 and the second electrode pattern layer 86, first substrate layer 84 is fitted by laminating layer 82 and upper substrate 81.It is electrically connected at signal processing circuit 85 by conductor wire (scheme depending on) between first electrode pattern layer 83 and the second motor patterned layer 86.This signal processing circuit 85 position is not construed as limiting, its can be arranged on the lower section of the second substrate layer 87 or its above or side.
Refer to Figure 16, first electrode pattern layer 83 includes a plurality of first direction touch-control drive electrode 871 being parallel to each other, between described a plurality of first direction touch-control drive electrode 871, it is provided with non-touch-control district 874, in described non-touch-control district 874, is provided with pressure detection electrode 861.Described second electrode pattern layer 86 upper surface or lower surface are provided with a plurality of second direction touch-control being parallel to each other and receive electrode (non-label).First direction touch-control drive electrode 871 and second direction touch-control receive electrode hierarchy setting and can avoid between touch control electrode because of the problem of the overlapping circuit easy fracture brought.
Second electrode pattern layer 86 can also be arranged on the lower surface of the first substrate layer 84, or first electrode pattern layer 83 be set directly on upper substrate 81, second electrode pattern layer 86 is arranged on the first substrate layer 84, so both can reduce the setting of the second substrate layer 87, it is possible to the touch-control assembly 80 with pressure detection do thinner.
Refer to Figure 17, this utility model the 9th embodiment provides a kind of touch-control assembly 90 with pressure detection, the difference is that only of the touch-control assembly 10 with pressure detection of the described touch-control assembly 90 with pressure detection and first embodiment: the touch-control assembly 90 in the present embodiment with pressure detection is additionally arranged one second shell of compression 96, the touch-control assembly 90 with pressure detection includes a upper substrate 91 from top to bottom, one laminating layer 92, one electrode pattern layer 93, one first substrate layer 94, one second shell of compression 96, one second substrate layer 97 and a signal processing circuit 95, what define that at least one pressure detection electrode (non-label) in described electrode pattern layer 93 formed is the first shell of compression (non-label), the present embodiment is additionally arranged the second shell of compression 96, we can pass through the superposition of the shell of compression detecting result of two-layer with detecting more accurately by force value.
Refer to Figure 18, illustrate for touch-control scanning impulse and the pressure scanning pulse that driving pulse processor (scheme depending on) is exported by 2 groups of touch control electrode and pressure detection electrode, setting Vt_1 and Vt_2 is first direction touch-control drive electrode 1 and the touch-control scanning impulse received by first direction touch-control drive electrode 2 respectively, Vf_1 and Vf_2 is the pressure detection electrode 1 on the first shell of compression and the pressure scanning pulse received by pressure detection electrode 2 respectively, Vf_a and Vf_b is the pressure detection electrode a on the second shell of compression 96 and the pressure scanning pulse received by pressure detection electrode b respectively, scanning pulse signal timesharing sequence between touch control electrode and the first shell of compression and the second shell of compression 96 carries out, it is preferably timesharing sequence to hocket, one pressure scanning pulse or touch-control scanning impulse can also include the punching of multiple short pulse.It is more preferably touch control electrode and narrows to avoid current potential switching point each other when timesharing sequence carries out with the one or more scanning impulse in the first shell of compression and the second shell of compression 96, so can promote the interference free performance between signal further.
Refer to Figure 19, this utility model the tenth embodiment provides a kind of touch-control assembly (all non-label) with pressure detection, the difference is that only of the touch-control assembly 90 with pressure detection of the described touch-control assembly with pressure detection and the 8th embodiment: the pressure scanning pulse between touch control electrode and the first shell of compression and the second shell of compression carries out with sequential, the pulsewidth of the touch-control scanning impulse received by touch control electrode is more than the pulsewidth of the pressure scanning pulse received by the first shell of compression, the pulsewidth of the pressure scanning pulse received by the first shell of compression is more than the pulsewidth of the pressure scanning pulse received by the second shell of compression, the current potential switching point between pressure scanning pulse between touch control electrode and the first shell of compression and the second shell of compression all staggers, interference between such signal reduces.Actually, the pulsewidth of the pressure scanning pulse of touch control electrode and the first shell of compression and the second shell of compression is not construed as limiting, as long as ensureing that the current potential switching point of the sharp pressure scanning pulse of touch control electrode and the first shell of compression and the second shell of compression staggers, certainly, the sequential chart of the rwo also can be completely the same.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendments made within principle of the present utility model, equivalent replacement and improvement etc. all should comprise within protection domain of the present utility model.
Claims (10)
1. a touch-control assembly with pressure detection, it is characterised in that: including a three-dimension sensor, a plurality of touch control electrode and at least one pressure detection electrode, described a plurality of touch control electrode at least includes a plurality of first direction touch-control drive electrode；And
One Three dimensions control device, described Three dimensions control device includes a driver and a driving pulse processor, described driver provides pressure scanning pulse by driving pulse processor for described at least one pressure detection electrode, and described driver directly or indirectly provides touch-control scanning impulse for described a plurality of first direction touch-control drive electrode by driving pulse processor.
2. there is the touch-control assembly of pressure detection as claimed in claim 1, it is characterized in that: described driving pulse processor includes a selection circuit and/or a pulse reformation circuit, wherein said driver, described selection circuit and described pulse reformation circuit and described at least one pressure detection electrode are sequentially connected electrically.
3. there is the touch-control assembly of pressure detection as claimed in claim 1, it is characterized in that: described Three dimensions control device farther includes a touching signals and receives module, one pressure signal receives module and an integrated processor, and described a plurality of touch control electrode farther includes a plurality of second direction touch-control and receives electrode, described a plurality of second direction touch-control receives electrode and is electrically connected to described touching signals reception module, described pressure detection electrode is electrically connected to described pressure signal and receives module, described touching signals receives module and is electrically connected to described integrated processor with described pressure signal reception module.
4. there is the touch-control assembly of pressure detection as claimed in claim 1, it is characterized in that: described at least one pressure detection electrode is a plurality of pressure detection electrode, the each corresponding internal resistance of a plurality of pressure detection electrode is RF0, RF1, RF2 RFn, the resistance RC0 mated one by one with it it is arranged around at described a plurality of pressure detection electrode, RC1, RC2 RCn, RF0, RF1, RF2 RFn and RC0, RC1, RC2 RCn reference resistance each other, the described touch-control assembly with pressure detection farther includes a pressure signal processor, this pressure signal processor includes a resistance Ra, one resistance Rb, multiplexer MUX1 and multiplexer MUX2, RF0, RF1, RF2 RFn accesses the input of described multiplexer MUX1, RC0, RC1, RC2 RCn accesses the input of described multiplexer MUX2, described multiplexer MUX1 and MUX2 selects resistance RFn and the RCn output matched respectively and constitutes Wheatstone bridge with resistance Ra and Rb, described RF0, RF1, RF2 RFn change in resistance amount and its suffered being associated by force value.
5. there is the touch-control assembly of pressure detection as claimed in claim 1, it is characterized in that: described a plurality of touch control electrode and described at least one pressure detection electrode are arranged in same plane, described a plurality of touch control electrode farther includes a plurality of second direction touch-control being parallel to each other and receives electrode, described a plurality of first direction touch-control drive electrode and the described a plurality of second direction touch-control being parallel to each other receive between electrode in a certain angle, it is provided with non-touch-control district between described a plurality of first direction touch-control drive electrode, described at least one pressure detection electrode is arranged in this non-touch-control district, described at least one pressure detection electrode, described a plurality of first direction touch-control drive electrode and the described a plurality of second direction touch-control being parallel to each other receive and have overlapping region between electrode, it is provided with in described overlapping region and receives the collets between electrode at described a plurality of first direction touch-control drive electrode and the described a plurality of second direction touch-control being parallel to each other.
6. there is the touch-control assembly of pressure detection as claimed in claim 1, it is characterized in that: described a plurality of touch control electrode and described at least one pressure detection electrode are arranged in same plane, described a plurality of touch control electrode farther includes a plurality of second direction touch-control and receives electrode, described a plurality of first direction touch-control drive electrode and described a plurality of second direction touch-control receive no overlap region between electrode, between described a plurality of first direction touch-control drive electrode, or a plurality of second direction touch-control receives between electrode, or a plurality of first direction touch-control drive electrode and a plurality of second direction touch-control receive and are provided with non-touch-control district between electrode, described at least one pressure detection electrode is arranged in described non-touch-control district.
7. there is the touch-control assembly of pressure detection as claimed in claim 1, it is characterized in that: described a plurality of touch control electrode farther includes a plurality of second direction touch-control and receives electrode, described a plurality of first direction touch-control drive electrode receives electrode from described a plurality of second direction touch-control and is positioned on different substrate layers or is arranged on the Different Plane of same substrate layer, having non-touch-control district between described a plurality of first direction touch-control drive electrode, described at least one pressure detection electrode is arranged in described non-touch-control district.
8. there is the touch-control assembly of pressure detection as claimed in claim 1, it is characterized in that: described at least one pressure detection electrode is a plurality of pressure detection electrode, the described touch-control assembly with pressure detection includes at least one first shell of compression and one second shell of compression, described first shell of compression and described second shell of compression are provided with described at least one pressure detection electrode, have at least the first shell of compression and touch control electrode to be generally aligned in the same plane.
9. there is the touch-control assembly of pressure detection as claimed in claim 1, it is characterized in that: described at least one pressure detection electrode is a plurality of pressure detection electrode, the described touch-control assembly with pressure detection farther includes a pressure signal processor, described pressure signal processor includes the pressure detection electrode adjacent by two and resistance Ra and the resistance Rb Wheatstone bridge constituted and an operational amplification circuit, one of described two adjacent pressure detection electrodes are as the reference of another pressure detection electrode, the noise resistance variable signal that a pressure detection electrode in described two adjacent pressure detection electrodes causes because of noise effect be connected with the input in the same direction of operational amplification circuit after reversely at the reverse input end of operational amplification circuit described in the noise resistance variable signal that causes because of noise effect of another pressure detection electrode offset.
10. there is the touch-control assembly of pressure detection as claimed in claim 1, it is characterised in that: described Three dimensions control device is integrated on a chip.
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| CN201520498634.4U CN205353969U (en) | 2015-07-10 | 2015-07-10 | Touch -control assembly with pressure is listened |
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| CN201520498634.4U CN205353969U (en) | 2015-07-10 | 2015-07-10 | Touch -control assembly with pressure is listened |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106325582A (en) * | 2015-07-10 | 2017-01-11 | 宸鸿科技(厦门)有限公司 | Touch assembly with pressure detection and driving method of touch assembly |
| CN106462294A (en) * | 2016-08-16 | 2017-02-22 | 京东方科技集团股份有限公司 | Touch substrate, touch panel and touch device and manufacturing method thereof |
| CN107797702A (en) * | 2017-10-20 | 2018-03-13 | 厦门天马微电子有限公司 | Pressure sensor, display panel and display device |
| CN108021272A (en) * | 2016-10-31 | 2018-05-11 | 乐金显示有限公司 | Power sensing device further and the display device with the power sensing device further |
| WO2019174295A1 (en) * | 2018-03-13 | 2019-09-19 | 京东方科技集团股份有限公司 | Touch structure and manufacturing method therefor, touch device, and touch positioning method |
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- 2015-07-10 CN CN201520498634.4U patent/CN205353969U/en active Active
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| CN106325582A (en) * | 2015-07-10 | 2017-01-11 | 宸鸿科技(厦门)有限公司 | Touch assembly with pressure detection and driving method of touch assembly |
| CN106325582B (en) * | 2015-07-10 | 2023-07-28 | 宸鸿科技(厦门)有限公司 | Touch assembly with pressure detection function and driving method thereof |
| CN106462294B (en) * | 2016-08-16 | 2019-11-29 | 京东方科技集团股份有限公司 | Touch substrate, the touch panel with it and touching device and its manufacturing method |
| KR20180028987A (en) * | 2016-08-16 | 2018-03-19 | 보에 테크놀로지 그룹 컴퍼니 리미티드 | TOUCH SUBSTRATE, TOUCH PANEL AND TOUCH DEVICE HAVING THE SAME |
| KR101944880B1 (en) * | 2016-08-16 | 2019-02-01 | 보에 테크놀로지 그룹 컴퍼니 리미티드 | TOUCH SUBSTRATE, TOUCH PANEL AND TOUCH DEVICE HAVING THE SAME |
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| CN106462294A (en) * | 2016-08-16 | 2017-02-22 | 京东方科技集团股份有限公司 | Touch substrate, touch panel and touch device and manufacturing method thereof |
| CN108021272A (en) * | 2016-10-31 | 2018-05-11 | 乐金显示有限公司 | Power sensing device further and the display device with the power sensing device further |
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| CN110275647A (en) * | 2018-03-13 | 2019-09-24 | 京东方科技集团股份有限公司 | Touch-control structure and preparation method thereof, touch device and touch localization method |
| CN110275647B (en) * | 2018-03-13 | 2021-01-12 | 京东方科技集团股份有限公司 | Touch structure and manufacturing method thereof, touch device and touch positioning method |
| US11543925B2 (en) | 2018-03-13 | 2023-01-03 | Hefei Xinsheng Optoelectronics Technology Co., Ltd. | Touch structure, method for manufacturing same, touch device, and method for determining touch position |
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