CN204883660U - Enhancement mode 3D detection module - Google Patents
Enhancement mode 3D detection module Download PDFInfo
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- CN204883660U CN204883660U CN201520704488.6U CN201520704488U CN204883660U CN 204883660 U CN204883660 U CN 204883660U CN 201520704488 U CN201520704488 U CN 201520704488U CN 204883660 U CN204883660 U CN 204883660U
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Abstract
The utility model provides an enhancement mode 3D detection module, enhancement mode 3D detection module includes a touch -control inductive layer that sets gradually and an at least forced induction layer, be provided with an at least pressure unit on the forced induction layer in order to form a pressure unique tuple. Enhancement mode 3D detection module has the precision of a listening height, noise proof performance advantage such as good.
Description
[technical field]
The utility model relates to a kind of detecting module, particularly relates to a kind of enhancement mode 3D detecting module with touch point detection and pressure detection.
[background technology]
Along with the development of touch technology, that existing industrial electronic device or consumer electronics device great majority all have employed the display panel with touch controllable function, when the panel surface with touch controllable function is subject to the operation from finger and pointer etc., electronic installation performs specific operation by the position detecting touch point.For the detecting of touch point, no matter be capacitance plate or touch screens, it all determines touch point two-dimensional coordinate on a display panel by different principles, two-dimensional coordinate system (X is set up with surface, display panel place, Y), the detection of touch point is just equivalent to determine the position of touch point on the position and Y direction of X-direction, namely determines the two-dimensional position of touch point.
In order to enrich the display panel with touch controllable function further, existing part display panel can install pressure transducer additional at present, described pressure transducer comprises multiple pressure sensitivity unit, the pressure sensitivity unit induction being positioned at touch point place can produce certain deformation from the pressing force perpendicular to display panel (being equivalent to Z-direction) thus cause the electric signal at pressure sensitivity unit place to change, and can determine the pressure suffered by pressure sensitivity unit to this detecting of electrical number.Can arrange corresponding apparatus function during diverse location touch point coupling different pressing force value, 3D (3-dimension the is three-dimensional) angle that namely we can define from touch point (X, Y) and pressure (Z) goes abundant design.
But existence problem that the existing display panel with 3D detecting function is all general, the detecting of its pressure signal not precisely causes Consumer's Experience sense poor, and pressure detection, easily there is signal interference between touch point detection.
[utility model content]
For overcoming the pressure signal detecting problem not accurately existing for the display panel at present with 3D detecting function, the utility model provides a kind of enhancement mode 3D detecting module.
The utility model provides a kind of scheme solved the problems of the technologies described above: a kind of enhancement mode 3D detecting module, described enhancement mode 3D detecting module comprises a touch-control sensing layer set gradually and at least one pressure sensitive layer, described pressure sensitive layer is provided with at least one pressure sensitivity unit to form a pressure sensitivity unit group.
Preferably, described at least one pressure sensitivity unit group comprises the pressure sensitivity unit of at least two series connection.
Preferably, described enhancement mode 3D detecting module comprises one first pressure sensitive layer and one second pressure sensitive layer, and described first pressure sensitive layer and described second pressure sensitive layer are at least respectively arranged with a pressure sensitivity unit group.
Preferably, the pressure sensitivity unit one_to_one corresponding be positioned on described first pressure sensitive layer and described second pressure sensitive layer is arranged or translation misplaces or is crisscross arranged or complementation is arranged.
Preferably, the planimetric area of the pressure sensitivity unit on described first pressure sensitive layer on the pressure sensitivity unit of the described second pressure sensitive layer of its correspondence is the 50%-80% of single pressure sensitivity unit elemental area.
Preferably, a screen layer is provided with between described touch-control sensing layer and described at least one pressure sensitive layer.
Preferably, described enhancement mode 3D detecting module comprises a display module and a driver, described display module comprises multiple pixel cell, described multiple pixel cell, and pressure sensitivity unit group and the described touch control unit of described at least one pressure sensitivity unit are directly or indirectly electrically connected to described driver.
Preferably, described touch-control sensing layer is arranged between described display module and described pressure sensitive layer, between described touch-control sensing layer and described display module, is at least provided with a screen layer between described touch-control sensing layer and described pressure sensitive layer.
Preferably, described at least one pressure sensitivity unit is the pressure sensitivity unit of at least two series connection, the corresponding internal resistance of pressure sensitivity unit of described at least two series connection is RF0, RF1, RF2RFn, the reference resistance RC0 mated one by one with it is provided with near the pressure sensitivity unit of described at least two series connection, RC1, RC2RCn, described enhancement mode 3D detecting module comprises a pressure signal processor further, this pressure signal processor comprises a resistance Ra, one resistance Rb, multiplexer MUX1 and multiplexer MUX2, described RF0, RF1, RF2RFn accesses the input end of described multiplexer MUX1, described RC0, RC1, RC2RCn accesses the input end of described multiplexer MUX2, described multiplexer MUX1 and MUX2 selects resistance RFn and RCn matched export and form Wheatstone bridge with resistance Ra and Rb respectively, described RF0, RF1, RF2RFn change in resistance amount is associated with the pressing force value suffered by it.
Preferably, enhancement mode 3D detecting module comprises a upper substrate and further and shows module, described display module comprises the upper polaroid set gradually from top to bottom, one upper substrate, a liquid crystal layer, an infrabasal plate and once polaroid, described touch-control sensing layer is arranged on described upper polaroid lower surface, or described upper substrate upper surface or lower surface, or described infrabasal plate upper surface or lower surface, or on described lower polaroid lower surface.
Preferably, described at least one pressure sensitivity unit comprises the pressure sensitivity unit of at least two series connection, and the pressure sensitivity unit of described at least two series connection are regular hexagon, or " rice " font, or square, or triangle, or rhombus or other are irregularly shaped.
Compared with prior art, touch control display device tool provided by the utility model has the following advantages:
1. strengthen pressure detection effect by once detecting multiple pressure sensitivity unit (pressure sensitivity unit group), random or the follow procedure of enhancement mode 3D detecting module chooses the detecting that the corresponding pressure sensitivity unit in pressing position place carries out additivity, can promote pressure detection sensitivity and the detecting precision of enhancement mode 3D detecting module.
2. the multiple pressure sensitivity unit once detected described in adopt same driver simultaneously for giving pressure scanning pulse, and this kind of synchronous driving mode ensure that the synchronism of different pressure sensitivity unit pressing force value detecting, to ensure the precision pressing force value detection.
3. be very easy to be subject to signal interference at current potential switching point between electric signal and cause the detecting of touch point position or pressing force value not accurate.Between the scanning impulse of touch-control described in the utility model and pressure scanning pulse, point sequential is carried out, therefore there is not the interference of signal between the two.Again, although touch-control scanning impulse and the same sequential of picture element scan pulse, both some position switching point dislocation in same period, therefore signal interference between the two significantly reduces, and ensure that the stability of 3D detecting module.In like manner, the signal between picture element scan pulse and pressure scanning pulse disturbs and also significantly reduces.
[accompanying drawing explanation]
Fig. 1 is the layer structure schematic diagram of the utility model first embodiment enhancement mode 3D detecting module.
Fig. 2 is the partial structurtes schematic diagram of pressure sensitive layer in the utility model first embodiment enhancement mode 3D detecting module.
Fig. 3 is the electrical block diagram of pressure signal processor in the utility model first embodiment enhancement mode 3D detecting module.
Fig. 4 is pressure signal detecting schematic diagram in Fig. 3.
Fig. 5 is the sequential chart of picture element scan pulse and touch-control scanning impulse and pressure scanning pulse in the utility model first embodiment enhancement mode 3D detecting module.
Fig. 6 is the sequential chart of picture element scan pulse and touch-control scanning impulse and pressure scanning pulse in the utility model second embodiment enhancement mode 3D detecting module.
Fig. 7 is the sequential chart of picture element scan pulse and touch-control scanning impulse and pressure scanning pulse in the utility model the 3rd embodiment enhancement mode 3D detecting module.
Fig. 8 is the sequential chart of picture element scan pulse and touch-control scanning impulse and pressure scanning pulse in the utility model the 4th embodiment enhancement mode 3D detecting module.
Fig. 9 is the sequential chart of picture element scan pulse and touch-control scanning impulse and pressure scanning pulse in the utility model the 5th embodiment enhancement mode 3D detecting module.
Figure 10 is the partial structurtes schematic diagram of pressure sensitive layer in the utility model the 6th embodiment enhancement mode 3D detecting module.
Figure 11 is the sequential chart of picture element scan pulse and touch-control scanning impulse and pressure scanning pulse in the utility model the 6th embodiment enhancement mode 3D detecting module.
Figure 12 is the partial structurtes schematic diagram of pressure sensitive layer in the utility model the 7th embodiment enhancement mode 3D detecting module.
Figure 13 is the sequential chart of picture element scan pulse and touch-control scanning impulse and pressure scanning pulse in the utility model the 7th embodiment enhancement mode 3D detecting module.
Figure 14 is the layer structure schematic diagram of the utility model the 8th embodiment enhancement mode 3D detecting module.
Figure 15 is the first pressure sensitive layer and the second pressure sensitive layer Overlay partial structurtes schematic diagram in the utility model the 8th embodiment enhancement mode 3D detecting module.
Figure 16 is the sequential chart of picture element scan pulse and touch-control scanning impulse and pressure scanning pulse in the utility model the 8th embodiment enhancement mode 3D detecting module.
Figure 17 is the first pressure sensitive layer and the second pressure sensitive layer Overlay partial structurtes schematic diagram in the utility model the 9th embodiment enhancement mode 3D detecting module.
Figure 18 is the sequential chart of picture element scan pulse and touch-control scanning impulse and pressure scanning pulse in the utility model the 9th embodiment enhancement mode 3D detecting module.
Figure 19 is the layer structure schematic diagram of the utility model the tenth embodiment enhancement mode 3D detecting module.
Figure 20 is the layer structure exploded perspective view of the utility model the 11 embodiment enhancement mode 3D detecting module.
[embodiment]
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, are further elaborated to the utility model.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.Need notice, the signal pulse of all embodiments of the utility model uses and all adopts common square-wave signal to carry out releasing example explanation, so be not limited with square wave in practical application and can be any various forms signal that can meet the utility model signal treatment principle and use, signal process gimmick is not also limited so that square wave is special.
Refer to Fig. 1, the utility model first embodiment enhancement mode 3D detecting module 10 is (involved upper in the utility model from top to bottom, lower left and right equipotential puts the relative position that word is only limitted in given view, but not absolute position) comprise a upper substrate 11, one laminating layer 12, one pressure sensitive layer 13, one first substrate layer 14, touch-control sensing layer 15, one second substrate layer 16 and display module 17 and a signal processing circuit 18, described pressure sensitive layer 13, touch-control sensing layer 15 and display module 17 are electrically connected on signal processing circuit 18 by conductor wire (scheme depending on).
Described upper substrate 11 can regard as the touch cover plate on our conventional touch panel, so-called cover plate comprises a touch operation surface and an assembly installed surface, its touch operation surface is used for finger or pointer etc. and carries out touch control operation, assembly installed surface then for installing touch control component, pressure sensitivity assembly or display module etc.
Laminating layer 12 can select OCA (Optical transparent adhesive, or LOCA (Liquid optical clear adhesive OpticalClearAdhesive), LiquidOpticalClearAdhesive), it is for realizing the laminating between upper substrate 11 and other assemblies.
First substrate layer 14 and the second substrate layer 16 are respectively as the bearing bed of pressure sensitive layer 13 with touch-control sensing layer 15, and it is flexible parent metal that the material of the first substrate layer 14 and the second substrate layer 16 can distinctly be selected, and also can be rigid substrate; With the first substrate layer 14, be preferably and select flexible parent metal.
Described signal processing circuit 18 is arranged on the below of the second substrate layer 16, and its position is not construed as limiting, and it also can be arranged at above the second substrate layer 16 or its side.
On touch-control sensing layer 15, array is provided with multiple touch control unit (figure does not look), each touch control unit is provided with a touch-control drive wire, described touch-control drive wire is for receiving drive singal: touch-control scanning impulse, when touch-control scanning impulse is carried on touch control unit, touch control unit should point or pointer etc. operation and there is electrically change and produce a touching signals to signal processor, described signal processor carries out the process such as computing and draws touch point position to touching signals.
On display module 17, array is provided with multiple pixel cell (figure does not look), each pixel cell is provided with a pixel driver line, described pixel driver line is for receiving drive singal: picture element scan pulse, when picture element scan pulse is carried on pixel cell, and described pixel cell running.
Refer to Fig. 2, on described pressure sensitive layer 13, distribution is provided with multiple separate pressure sensitivity unit 131, to be regular hexagon (please note as the representative of pressure sensitivity unit 131 described pressure sensitivity unit 131, the true form of pressure sensitivity unit 131 is not construed as limiting, it can be square, triangle, rhombus or other are irregularly shaped, is preferably " rice " font.), each pressure sensitivity unit 131 at least comprises a pressure-driven line 132 and a pressure signal receives line 134, described pressure-driven line 132 is for receiving drive singal: pressure scanning pulse, when pressure scanning pulse is carried on pressure sensitivity unit 131, pressure sensitivity unit should be pointed or the operation of pointer etc. and pressure sensitivity unit 131 material behavior generation stress deformation (namely drawing tension causes the material resistance of the specific pattern of tool to change) and then produce change in electric and send a pressure signal, and this pressure signal receives line 134 by pressure signal and is passed to signal processing circuit 18.Signal processing circuit 18 pairs of pressure signals carry out the process such as computing and draw pressing force value.
Refer to Fig. 3, signal processor 18 comprises a pressure signal processor 19, and at least one driver (figure does not look) and at least one electric bridge 191 and a pressure sensitivity signal processing unit 193, at least one electric bridge 191 is electrically connected on a pressure sensitivity signal processing unit 193.Described at least one driver is pressure sensitivity unit 131, touch control unit and pixel cell provide pressure scanning pulse respectively, touch-control scanning impulse light and picture element scan pulse, preferably, described pressure scanning pulse, touch-control scanning impulse and picture element scan pulse are directly or indirectly provided by same driver, described indirectly providing can be that the drive singal that driver exports is selected drive singal through overdrive pulse treatment circuit, displacement, pulsewidth constriction, reoffers to touch control unit and/or pressure sensitivity unit 131 after the process such as frequency division.
Electric bridge 191 comprises the first multiplexer MUX1, second multiplexer MUX2, at least one resistance Ra, Rb (being arranged in control chip group) and an operational amplification circuit (i.e. numbered component 192), the output terminal of the first multiplexer MUX1 and the second multiplexer MUX2 is electrically connected at in-phase input end and the reverse input end of operational amplification circuit 192 respectively as the input signal U0 of operational amplification circuit 192, and the output terminal of operational amplification circuit 192 is connected with the pressure sensitivity signal processing unit 193 of a processing pressure signal.
The output terminal 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 output terminal 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, the building of driving source adopt 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 signal such as voltage signal, signal kenel is not also limited; Preferably, driving source is better can adopt each embodiment herein disclose tool square wave kenel scanning impulse formula the signal that provides as driving source of pressure scanning pulse, pressure sensitivity unit 131 is encouraged and detects change.
The pressure signal of what the input end of the first multiplexer MUX1 connected is first group of multiple pressure sensitivity unit 131 receives line 134, and namely pressure sensitivity unit 131 accesses the input end of the first multiplexer MUX1.The internal resistance of described first group of multiple pressure sensitivity unit 131 correspondence is RF0, RF1, RF2RFn, user touch upper substrate 11 produce certain pressure time, be positioned at the internal resistance RF0 corresponding to pressure sensitivity unit 131 under upper substrate 11, RF1, RF2RFn resistance can change.First multiplexer MUX1 can select RF0, and one of them resistance of RF1, RF2RFn inputs as it.
The pressure signal of what the input end of the second multiplexer MUX2 connected is second group of multiple pressure sensitivity unit 131 of pressure transducer 16 receives line 134, the internal resistance of described second group of multiple pressure sensitivity unit 131 is RC0, RC1, RC2RCn, itself and RF0, RF1, RF2RFn mates setting one by one, for example RC0 is arranged near RF0, and RC1 is arranged near RF1, so analogizes.RC0, RC1, RC2RCn and RF0, RF1, RF2RFn each other reference resistance and their one end connect the positive terminal VEX-of driving source.Second multiplexer MUX2 can select RC0, and one of them resistance of RC1, RC2RCn inputs as it.
Refer to Fig. 4, select RF0 and the second multiplexer MUX2 to select the principle of work of RC0 to pressure transducer 16 to be described for the first multiplexer MUX1.Described resistance RF0, resistance RC0 (being positioned on pressure sensitive layer 13) and resistance Ra and Rb (can be arranged at control chip group) constitute Wheatstone bridge, and when without pressing force effect, Wheatstone bridge is in equilibrium state.Driving source provides stabilized voltage supply for electric bridge 191, and described stabilized voltage supply does not consider its both positive and negative polarity polarity, preferred D.C. regulated power supply in the present embodiment when accessing.When user operates at upper substrate 11, it has a pressing force to upper substrate 11, corresponding internal resistance RF0 in described pressure sensitivity unit 131, the one or more resistance of RF1, RF2RFn changes, like this, Wheatstone bridge balance is broken and causes output electric signal U0 to change, the change of different resistance correspond to different force value, therefore, namely can draw corresponding force value by calculating the output signal U 0 of Wheatstone bridge and process.In fact, we also can arrange shared fixed reference resistance as required to replace RC0, RC1, RC2RCn.
In order to strengthen the precision of pressing force value detecting, adopting in the present embodiment and once selecting at least 2 pressure sensitivity unit 131 and detect and once press force value.Specifically be described for the multiple pressure sensitivity unit 131 in Fig. 2:
Fig. 2 comprises a pressure sensitivity unit a, pressure sensitivity unit b, pressure sensitivity unit c, pressure sensitivity unit d and pressure sensitivity unit e, this pressure sensitivity unit a, pressure sensitivity unit b, pressure sensitivity unit c, pressure sensitivity unit d and pressure sensitivity unit e respectively correspondence is provided with pressure-driven line Vf_a, Vf_b, Vf_c, Vf_d and Vf_e, when finger or pointer etc. carry out touch control operation on upper substrate 11, it has a pressing force effect to upper substrate 11, set this touch point center corresponding with the position at the pressure sensitivity unit a place on pressure sensitive layer 13, but in fact, touch control unit density is often higher than pressure sensitivity unit 131 density, user is when operating, its pressing position is to there being multiple pressure sensitivity unit 131, especially when the size of pressure sensitivity unit 131 is less, namely pressing position corresponding with pressure sensitivity unit a place outside, be pressed into the pressure sensitivity unit b of its periphery still simultaneously, pressure sensitivity unit c, one or more in pressure sensitivity unit d and pressure sensitivity unit e, also therefore, while the internal resistance of pressure sensitivity unit a changes, pressure sensitivity unit b, pressure sensitivity unit c, one or more internal resistance in pressure sensitivity unit d and pressure sensitivity unit e also very likely there occurs change because falling into pressing scope, at this moment, we can by selecting pressure sensitivity unit a and the one or more pressure sensitivity unit 131 near it carry out pressure detection to realize pressure signal reinforcement.
Then be described once to select 3 pressure sensitivity unit 131 (according to algorithm picks logic), touch point center is corresponding with the position at the pressure sensitivity unit a place on pressure sensitive layer 13, for detecting this pressing force value, signal processing circuit 18 will carry out the detection pressing force value at random or by a setting program two the pressure sensitivity unit 131 repeatedly selected near pressure sensitivity unit a, it is specifically detected: step S1: first time selects pressure sensitivity unit a, and pressure sensitivity unit b and pressure sensitivity unit c presses force value to detect; Step S2: second time selects pressure sensitivity unit a, pressure sensitivity unit c, pressure sensitivity unit d detects to press force value; Step S3: third time selects pressure sensitivity unit a, pressure sensitivity unit d and pressure sensitivity unit e are to detect pressing force value.
Pressure sensitivity unit a is selected with S1 first time, pressure sensitivity unit b and pressure sensitivity unit c is that example is to illustrate pressure signal reinforcement principle, refer to Fig. 5 (in the utility model in all sequential charts only with specific several groups of sequential charts to represent the variation tendency of electric signal, the sequential chart quantity Matching of its reality is in pixel cell, the quantity of pressure sensitivity unit 131 and touch control unit, not as limit), it is pressure sensitivity unit a that driver (such as gives mass-sending excitation signal) simultaneously, pressure sensitivity unit b and pressure sensitivity unit c provides pressure scanning pulse, under the effect of pressing force, pressure sensitivity unit a, one or more in pressure sensitivity unit b and pressure sensitivity unit c there occurs internal resistance and change because pressing force is pressed onto, pressure sensitivity unit a, pressure sensitivity unit b receives line 134 from pressure sensitivity unit c respectively by pressure signal and pressure signal is reached different electric bridges 191, corresponding internal resistance variable quantity (can be the kenel of no matter in parallel or series connection) is detected by Wheatstone bridge after different electric bridge 191 receives described pressure signal, then by described pressure sensitivity unit a, pressure sensitivity unit b exports the detection that namely pressure sensitivity signal processing unit 193 completes described pressing force value to after superposing with the internal resistance variable quantity corresponding to pressure sensitivity unit c.Due in detecting process, once select multiple pressure sensitivity unit 131, internal resistance variable quantity corresponding to multiple pressure sensitivity unit 131 must be larger than the internal resistance variable quantity corresponding to single pressure sensitivity unit 131, be equivalent to like this enhance pressure signal, the pressure detection sensitivity of enhancement mode 3D detecting module 10 is improved, and detecting effect is more accurate.
Driver provides pressure pulse signal (such as give mass-send pumping signal) for the multiple pressure sensitivity unit 131 once selected simultaneously, the pulsewidth of the picture element scan pulse that the pulsewidth of the pressure scanning pulse suffered by it is narrower than (or not wider than) received by pixel cell and described current potential switching point dislocation between the two.The pulsewidth of picture element scan pulse that touch-control scanning impulse pulsewidth is also narrower than (or not wider than) and the switching point dislocation of some position.Touch-control scanning impulse and picture element scan pulse are carried out with sequential but are carried out with pressure scanning pulse point sequential.Pressure scanning pulse and picture element scan pulse are carried out with sequential.As shown in Figure 5, Vg_n (n is positive integer, get 1 ~ 6 in Fig. 5 be described for example) represents the pressure scanning pulse received by different pixels unit.Vt_n (n is positive integer, get 1 ~ 3 in Fig. 5 be described for example) represents the touch-control scanning impulse received by different touch control unit.Vf_F (F represents pressure sensitivity element number) represents the pressure scanning pulse received by different pressure sensitivity unit, Vf_F and Vt_n pulsewidth is preferably be narrower than Vg_n.Particularly, Vf_a/Vf_b/Vf_c represents pressure sensitivity unit a, pressure sensitivity unit b and the pressure scanning pulse received by pressure sensitivity unit c, and in the present embodiment, Vf_a/Vf_b/Vf_c three is synchronous and pulsewidth is identical with oscillator intensity each other.Vg_1, Vg_2 represent tactile pixel cell 1 and the touch-control scanning impulse sequential chart received by pixel cell 2 respectively, the touch-control scanning impulse of Vt_1 received by touch control unit 1, the current potential switching point of Vg_1 is t1 and t2, the current potential switching point of Vg_2 is t7 and t8, the current potential switching point of Vt_1 is t3 and t4, the current potential switching point of Vf_a+b+c is t5 and t6, t1<t3<t4<t2LEssT. LTssT.LTt5<t6<t8, t2=t7.When pixel cell 1 operates, touch control unit and pressure sensitivity unit 131 also do not operate, when touch control unit 1 comes into operation and terminate running (current potential switching point), picture element scan pulse received by pixel cell 1 is in stationary phase, therefore the current potential switching point of touch control unit 1 can not cause signal to disturb to it.In like manner, pressure sensitivity unit a, pressure sensitivity unit b and the pressure scanning pulse received by pressure sensitivity unit c also can not and pixel cell 2 between generation signal disturb.And point sequential is carried out between touch-control scanning impulse and pressure scanning pulse, it also can not produce undesired signal each other.
In the detecting process of a pressing force, the quantity of the pressure sensitivity unit 131 selected is not construed as limiting, and it can be selected according to the concrete size of pressure sensitivity unit 131 and quantity.
In all embodiments of the utility model, with sequential, namely what is called refers to that, within a work period (current potential is " 1 ") of picture element scan pulse, the work period of pressure scanning pulse/touch-control scanning impulse is overlapping with its existence (end points not comprising sequential chart is overlapping).Otherwise, be then a point sequential.Compared with prior art, the utility model enhancement mode 3D detecting module tool has the following advantages:
1. strengthen pressure detection effect by once detecting multiple pressure sensitivity unit 131 (pressure sensitivity unit group), random or the follow procedure of enhancement mode 3D detecting module chooses the detecting that the corresponding pressure sensitivity unit 131 in pressing position place carries out additivity, can promote pressure detection sensitivity and the detecting precision of enhancement mode 3D detecting module 10.
2. the multiple pressure sensitivity unit 131 once detected described in adopt same driver simultaneously for giving pressure scanning pulse, and this kind of synchronous driving mode ensure that different pressure sensitivity unit 131 presses the synchronism of force value detecting, to ensure the precision pressing force value detection.
3. be very easy to be subject to signal interference at current potential switching point between electric signal and cause the detecting of touch point position or pressing force value not accurate.Between the scanning impulse of touch-control described in the utility model and pressure scanning pulse, point sequential is carried out, therefore there is not the interference of signal between the two.Again, although touch-control scanning impulse and the same sequential of picture element scan pulse, both some position switching point dislocation in same period, therefore signal interference between the two significantly reduces, and ensure that the stability of 3D detecting module.In like manner, the signal between picture element scan pulse and pressure scanning pulse disturbs and also significantly reduces.
4. adopt Wheatstone bridge to detect pressing force value in the utility model, its circuit structure is simple, and control accuracy is high.Electric bridge 191 is adopted to be combined with multiplexer in most important described pressure signal processor 19, different pressure sensitivity unit 131 is selected by multiplexer, but in the Wheatstone bridge that different pressure sensitivity unit 131 is formed when detecting pressure force signal, resistance Ra and Rb is for sharing resistance, such design can reduce the resistance quantity in Wheatstone bridge widely, and different pressure sensitivity unit 131 is when carrying out pressure detection, because its fractional hardware is shared, therefore error rate each other reduces.Further, the internal resistance RF0 corresponding to described pressure sensitivity unit 131, RF1, RF2RFn one_to_one corresponding is provided with RC0, and RC1, RC2RCn are as reference resistance, this reference resistance is arranged on RF0, near RF1, RF2RFn, like this, the temperature that is subject between them affects consistent, and other noises be subject to also are similar to, and are conducive to the stable of Wheatstone bridge like this, reducing hardware circuit because of own temperature drifts about, the signal erroneous judgement that environmental factor is brought.RF0, RF1, RF2RFn and RC0, RC1, RC2RCn be reference resistance each other, optimizes the configuration of resource while reducing noise like this.The output signal end of Wheatstone bridge is connected to operational amplification circuit 192, and output signal U 0 not only can be amplified by described operational amplification circuit 192, and it can utilize the characteristic of operational amplification circuit 192 restraint speckle to reduce noise.Be described for RF0 and RC0, when upper substrate 11 is subject to pressing force, RF0 resistance change is △ r, but in fact RF0 is subject to as temperature and other interference and can produces △ s (△ s is noise resistance variable signal, it comprises a part and comes from noise that temperature variation brings and a part and come from interference noise between electric signal) noise, for reference resistance RC0, its be subject to as temperature and other interference consistent with the RF0 near it, size is also the noise of △ s, namely this noise △ s offsets with the noise of the voltage dependent resistor (VDR) RF0 of input end in the same way after oppositely at the reverse input end of operational amplification circuit 192, after operational amplification circuit 192, △ r is not only made to expand twice, also eliminate the noise that can produce △ s as temperature and other interference, improve the detecting precision of pressure signal further.In fact, offset gimmick in the noise that operational amplification circuit is possible and all can use, such as, U=A ((V+)-(V-))=A ((V
△ r+ V
△ s)-(-V
△ r+ V
△ s))=2AV
△ rnoise effect is caused in the outside that △ s system does not exist by reverse voltage affects; differential amplifier or amplifier is wherein used to combine the gimmick being all the utility model and can adopting, not as limit, as long as the outside circuit causing noise effect of preventing is abide by the law be all the utility model protection domain.
Refer to Fig. 6, the utility model second embodiment enhancement mode 3D detecting module (non-label) is only with the difference of the first embodiment: described pressure sensitivity unit a, pressure sensitivity unit b and pressure sensitivity unit c not adopt same driver/pressure-driven pulse synchronously to drive, in the present embodiment, pressure sensitivity unit a, pressure sensitivity unit b receives different pressure scanning pulses from pressure sensitivity unit c, but described pressure scanning pulse Vf_a, Vf_b and Vf_c carry out with sequential and the same work period completely overlapping.Pressure sensitivity unit a, pressure sensitivity unit b and the pressure signal of pressure sensitivity unit c carry out superposing same can realization and strengthen the effect detected.
Refer to Fig. 7, the utility model the 3rd embodiment enhancement mode 3D detecting module (non-label) is only with the difference of the second embodiment: pressure sensitivity unit a, pressure sensitivity unit b and pressure sensitivity unit c receives pressure scanning pulse all to carry out with sequential with touch-control scanning impulse, pressure scanning pulse Vf_a, Vf_b and Vf_c carry out with sequential and the same work period completely overlapping.Vf_a, Vf_b and Vf_c pulse width is narrower than the pulse width of touch-control scanning impulse.The current potential switching point of Vt_1 is that the current potential switching point of ta and tb, Vf_a, Vf_b, Vf_c is as tc and td, ta<tc<td<tb.Picture element scan pulse, between touch-control scanning impulse and pressure scanning pulse, the dislocation of current potential switching point is to avoid the mutual interference between signal.Pressure scanning pulse is all carried out shortening the operational paradigm that drive cycle promotes enhancement mode 3D detecting module with sequential with touch-control scanning impulse.Pressure scanning pulse Vf_a in the present embodiment, Vf_b and Vf_c can be substituted by same pressure scanning pulse (synchronously drive) and as the distortion of the present embodiment.
Refer to Fig. 8, the utility model the 4th embodiment enhancement mode 3D detecting module (non-label) is only with the difference of the 3rd embodiment: the touch-control scanning impulse of described touch control electrode and the pressure scanning pulse point sequential of pressure sensitivity unit are carried out, and in the detecting of pressing force value, the pressure scanning pulse of the multiple pressure sensitivity unit once selected also point sequential is carried out.Specifically have: the pressure scanning pulse Vf_a of pressure sensitivity unit a, pressure sensitivity unit b and pressure sensitivity unit c, Vf_b, Vf_c point of sequential is carried out.Like this, disturb between pressure sensitivity unit a, pressure sensitivity unit b and pressure sensitivity unit c without signal, detecting result precision improves.Because the detecting of the pressing force value between multiple sensing cell is relatively independent, detected result carry out superposition can obtain current pressing force value, can reach so equally strengthen detecting effect.
Refer to Fig. 9, the difference that the utility model the 5th embodiment enhancement mode 3D detecting module (non-label) and first executes example is only: the pressing force detecting frequency of pressure sensitivity unit there occurs change, and the cycle of pressure scanning pulse is elongated.In fact in future, the display device demand of 4K2K or more high-resolution three-dimensional input equipment is by more prevalent, all scanning signal pulsewidths can corresponding constriction, work period also can shorten, concrete structure is then show picture element distribution density higher than touch-control distribution density, and touch-control distribution density is higher than pressure sensitivity distribution density.Because enhancement mode 3D detecting module is successively to pixel cell, the sweep frequency of touch control unit and pressure sensitivity unit requires to have to reduce trend successively, therefore, the sweep frequency reducing touch-control scanning impulse and pressure scanning pulse successively relative to the sweep frequency of picture element scan pulse can reach the object that touch point and pressing force are detected equally, and which decreases the energy consumption of enhancement mode 3D detecting module.Setting picture element scan pulsed frequency is Fg, and touch-control scanning impulse frequency is Ft, and pressure scanning pulsed frequency is Ff, Fg>Ft>Ff.Preferably, Fg=(1 ~ 20) Ft, Fg=(1 ~ 50) Ff.Again in the present embodiment, picture element scan pulse is greater than touch-control scanning impulse pulsewidth or pressure scanning pulse.
Refer to Figure 10, the difference that the utility model the 6th embodiment enhancement mode 3D detecting module (non-label) and first executes example is only: in order to strengthen the precision pressing force value and detect, the present embodiment adopts in the detecting of pressing force once to be selected at least left and right or 2 close up and down pressure sensitivity unit groups and detects and once press force value, and each pressure sensitivity unit group described comprises at least one pressure sensitivity unit.Preferably 2 arbitrarily angled symmetries of pressure sensitivity unit group and adjacent.For example, enhancement mode 3D detecting module chooses pressure sensitivity unit a, pressure sensitivity unit b and pressure sensitivity unit c detects pressing force value as the first pressure sensitivity unit group, meanwhile, enhancement mode 3D detecting module has selected the pressure sensitivity unit A be positioned on the right side of the first pressure sensitivity unit group, and pressure sensitivity unit B and pressure sensitivity unit C carry out the detection signal of reinforcement first pressure sensitivity unit group as the second pressure sensitivity unit group.Thus, in the detecting process once pressing force value, pressing force value suffered by 6 sensing units is equivalent to have superposed to reach the effect promoting and strengthen detection signal.
Refer to Fig. 7 to assist to understand, in the enhancement mode embodiment of Figure 10, driver directly or indirectly sends pressure scanning pulse Vf_a/Vf_b/Vf_c/Vf_A/Vf_B/Vf_C, its synchronous scanning first pressure sensitivity unit group and second group of sensing unit, pressure scanning pulse and touch-control scanning impulse point sequential are carried out.Or in variant embodiment, the pressure sensitivity unit a-c in Figure 10 can change into and being one another in series, and pressure sensitivity unit A-C can change the (not shown) that is one another in series into; Or the pressure sensitivity unit a-c in Figure 10 and pressure sensitivity unit A-C can change 6 (not shown) that are one another in series into, corresponding scanning impulse and pressure scanning pulse Vf_a+b+c+A+B+C are as shown in figure 11.The pulse width that pressure scanning pulse and touch-control scanning impulse pulsewidth are narrower than pixel cell with this current potential switching point staggered each other to reduce the mutual interference between signal.
Refer to Figure 12, the difference that the utility model the 7th embodiment enhancement mode 3D detecting module (non-label) and first executes example is only: described at least two pressure sensitivity unit 731 ' have carried out the pressure sensitivity unit group 731 of connecting to be formed, and only comprise 3 pressure sensitivity unit 731 ' for a pressure sensitivity unit group 731 and be described in the present embodiment.Because each pressure sensitivity unit group 731 comprises multiple pressure sensitivity unit 731 ', therefore, in the pressure detection process of pressure sensitivity unit group 731, be equivalent to the received pressing force value acquiring 3 pressure sensitivity unit 731 '.
Refer to Figure 13, the pressure scanning pulse of pressure sensitivity unit group 731 and the touch-control scanning impulse point sequential of touch control electrode are carried out, and the two pulsewidth described is all narrower than the pulsewidth of picture element scan pulse and the current potential switching point of current potential switching point and picture element scan pulse misplaces.
Refer to Figure 14, the utility model the 8th embodiment enhancement mode 3D detecting module 80 and the first difference executing example are only: this enhancement mode 3D detecting module 80 has set up one second pressure sensitive layer 83 ' than enhancement mode 3D detecting module 10 in embodiment one, so far, described enhancement mode 3D detecting module 80 comprises a upper substrate 81 from top to bottom, one laminating layer 82, one first pressure sensitive layer 83, one first substrate layer 84, second pressure sensitive layer 83 ', 3rd substrate layer 84 ', touch-control sensing layer 85, one second substrate layer 86, one display module 87 and a signal processing circuit 88, described first pressure sensitive layer 83, second pressure sensitive layer 83 ', touch-control sensing layer 85 and display module 87 are electrically connected on signal processing circuit 88 by conductor wire (scheme depending on), with the first substrate layer 84 and the 3rd substrate layer 84 ', be preferably and select flexible parent metal.Look over from the visual angle perpendicular to upper substrate 81, the Overlay of the first pressure sensitive layer 83 and the second pressure sensitive layer 83 ' as described in Figure 15, first pressure sensitive layer 83 and the second pressure sensitive layer 83 ' are respectively arranged with the pressure sensitivity unit group 831 of multiple dispersion, each pressure sensitivity unit group 831 is serially connected with at least one pressure sensitivity unit 831 ', is positioned at that the first pressure sensitive layer 83 and the pressure sensitivity unit on the second pressure sensitive layer 83 ' are corresponding Shang Xia 831 ' to be arranged or to be crisscross arranged or complementation is arranged.
In the detecting process once pressing force value, be positioned at pressure superposition suffered by the pressure sensitivity unit 831 on the first pressure sensitive layer 83 and the second pressure sensitive layer 83 ', for example, pressure sensitivity unit group 831 on first pressure sensitive layer 83 comprises the pressure sensitivity unit M1 of serial connection, pressure sensitivity unit M2, pressure sensitivity unit M3, the pressure sensitivity unit group 831 of the second pressure sensitive layer 83 ' comprises the pressure sensitivity unit m1 of serial connection, pressure sensitivity unit m2, pressure sensitivity unit m3, pressure sensitivity unit 831 ' one_to_one corresponding on first pressure sensitive layer 83 and the second pressure sensitive layer 83 ' is arranged or translation misplaces or is crisscross arranged or complementaryly arrange, for the pressure sensitivity unit M1 of corresponding setting up and down and pressure sensitivity unit m1, the planimetric area of pressure sensitivity unit m1 on pressure sensitivity unit M1 is the 5%-100% of single pressure sensitivity unit unit 831 ' area, be preferably 50%-80%.The detecting once pressing force value superposes there being one of the first pressure sensitive layer 83 and the second pressure sensitive layer 83 ' pressing force effect, that namely once press that force value detects simultaneously is pressure sensitivity unit M1, pressure sensitivity unit M2, pressure sensitivity unit M3, pressure sensitivity unit m1, pressure sensitivity unit m2, the summation of the pressing force value suffered by pressure sensitivity unit m3, thus, the detection performance of enhancement mode 3D detecting module 80 promotes greatly.
Refer to Figure 16, Vf_M1+M2+M3 and Vf_m1+m2+m3 is pressure sensitivity unit M1, pressure sensitivity unit M2, pressure sensitivity unit M3, pressure sensitivity unit m1, pressure sensitivity unit m2, (namely correspondence is as shown in figure 15 for pressure sensitivity unit m3, pressure sensitivity unit M1-M3 connects, and pressure sensitivity unit m1-m3 connects) provide synchronous pressure scanning pulse ensure that the accuracy that pressing force is detected.The pressure scanning pulse of pressure sensitivity unit 831 and the touch-control scanning impulse point sequential of touch control electrode are carried out, and the two pulsewidth described is all narrower than the pulsewidth of picture element scan pulse and the current potential switching point of current potential switching point and picture element scan pulse misplaces and to disturb with the signal reduced each other.
The pressure sensitive layer of enhancement mode 3D detecting module is not defined as one deck or two-layer, and it also can be multilayer.
Refer to Figure 17, the difference that the utility model the 9th embodiment enhancement mode 3D detecting module (all non-label) and the 8th executes example is only: about the employing on the basis that embodiment eight is provided with the first pressure sensitive layer 83 and the second pressure sensitive layer 83 ' of this enhancement mode 3D detecting module is once selected at least or 2 close up and down pressure sensitivity unit groups 931 detect and once press force value, be equivalent to like this select at the first pressure sensitive layer and the second pressure sensitive layer 6 pressure sensitivity unit 931 ' that one_to_one corresponding arranges respectively, for example, enhancement mode 3D detecting module chooses the pressure sensitivity unit M1 on the first pressure sensitive layer, pressure sensitivity unit M2, pressure sensitivity unit M3 is the first pressure sensitivity unit group 931, pressure sensitivity unit M1 ', pressure sensitivity unit M2 ', pressure sensitivity unit M3 ' is the second pressure sensitivity unit group 931, pressure sensitivity unit m1 on second pressure sensitive layer, pressure sensitivity unit m2, pressure sensitivity unit m3 is the 3rd pressure sensitivity unit group 931, pressure sensitivity unit m1 ', pressure sensitivity unit m2 ', pressure sensitivity unit m3 ' is the 4th pressure sensitivity unit group 931, being equivalent to of four pressure sensitivity unit groups 931 detectings, has superposed pressing force value suffered by 12 pressure sensitivity unit to reach the effect promoting and strengthen detection signal.
Referring to Figure 18, Vf_M1+M2+M3 and Vf_M1 '+M2 '+M3 ' and Vf_m1+m2+m3 and Vf_m1 '+m2 '+m3 ' be separated from each other and drive series unit or collective Vf_M1+M2+M3+m1+m2+m3+M1 '+M2 '+M3 '+m1 '+the m2 '+m3 ' that connects to drive 4 groups that also can be and the first pressure sensitive layer and the second pressure sensitive layer are selected or 12 pressure sensitivity unit 931 ' to provide synchronous pressure scanning pulse ensure that the accuracy that pressing force is detected.The pressure scanning pulse of pressure sensitivity unit 931 and the touch-control scanning impulse point sequential of touch control electrode are carried out, and the two pulsewidth described is all narrower than the pulsewidth of picture element scan pulse and the current potential switching point of current potential switching point and picture element scan pulse misplaces and to disturb with the signal reduced each other.
Refer to Figure 19, the utility model the tenth embodiment enhancement mode 3D detecting module 66 and the first difference executing example are only: the 3D detecting module 66 in the present embodiment is provided with a screen layer 664 between pressure sensitive layer 663 and touch-control sensing layer 665, and described screen layer 664 disturbs for reducing the signal between pressure sensitive layer 663 and touch-control sensing layer 665.Producer can also arrange a screen layer (not shown) further and disturb with the signal reduced between them between touch-control sensing layer 665 and display module 667.In preferred embodiment, screen layer 664 is outside a metal level, separately optionally coordinates pixel cell design to carry out hollow out design, to improve the integral light-transmitting rate of enhancement mode 3D detecting module 66.
Refer to Figure 20, the enhancement mode 3D detecting module 99 of the 11 embodiment of the present utility model comprises a upper substrate 991 from top to bottom, one laminating layer 992, one pressure sensitive layer 993, and one shows module 990, described display module 990 comprises polaroid 994 on from top to bottom successively, one touch-control sensing layer 995, one upper substrate 996, one liquid crystal layer 997, one infrabasal plate 998 and once polaroid 999, upper substrate 996 and infrabasal plate 998 clamp liquid crystal layer 997, touch-control sensing layer 995 position is not construed as limiting, it can be arranged on the lower surface of polaroid 994, or upper substrate 996 upper surfaces/lower surface, or infrabasal plate 998 upper surfaces/lower surface, or on lower polaroid 999 lower surface.This touch-control sensing layer 995 comprises many first direction touch control electrode (scheme depending on) and many second direction touch control electrode (scheming not look), described many first direction touch control electrode and many second direction touch control electrode define the touch control unit of array arrangement, many first direction touch control electrode and many second direction touch control electrode can be separately positioned on the lower surface of polaroid 994, upper substrate 996 upper surfaces/lower surface, on any two surfaces in infrabasal plate 998 upper surfaces/lower surface, lower polaroid 999 lower surface.Directly fit with display module 990 after being fitted by laminating layer 992 between pressure sensitive layer 993 and cover plate 991.Like this, rapidly at the upper on-load pressure inductive layer 993 of the touch-control display panel (such as in-cellLCD, on-cellLCD, on-cellAMOLED) of damascene structures, the function of detecting touch point pressing force value while making enhancement mode 3D detecting module 99 have touch display function, can be had.Described enhancement mode 3D detecting module 99 also can arrange multilayer pressure inductive layer 993.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all any amendments done within principle of the present utility model, equivalent replacement and improvement etc. all should comprise within protection domain of the present utility model.
Claims (11)
1. an enhancement mode 3D detecting module, is characterized in that: described enhancement mode 3D detecting module comprises the touch-control sensing layer and at least one pressure sensitive layer that set gradually, described pressure sensitive layer is provided with at least one pressure sensitivity unit to form a pressure sensitivity unit group.
2. enhancement mode 3D detecting module as claimed in claim 1, is characterized in that: described at least one pressure sensitivity unit group comprises the pressure sensitivity unit of at least two series connection.
3. enhancement mode 3D detecting module as claimed in claim 1, it is characterized in that: described enhancement mode 3D detecting module comprises one first pressure sensitive layer and one second pressure sensitive layer, described first pressure sensitive layer and described second pressure sensitive layer are at least respectively arranged with a pressure sensitivity unit group.
4. enhancement mode 3D detecting module as claimed in claim 3, is characterized in that: the pressure sensitivity unit one_to_one corresponding be positioned on described first pressure sensitive layer and described second pressure sensitive layer is arranged or translation misplaces or is crisscross arranged or complementation is arranged.
5. enhancement mode 3D detecting module as claimed in claim 4, is characterized in that: the planimetric area of the pressure sensitivity unit on described first pressure sensitive layer on the pressure sensitivity unit of the described second pressure sensitive layer of its correspondence is the 50%-80% of single pressure sensitivity unit elemental area.
6. enhancement mode 3D detecting module as claimed in claim 1, is characterized in that: be provided with a screen layer between described touch-control sensing layer and described at least one pressure sensitive layer.
7. enhancement mode 3D detecting module as claimed in claim 1, it is characterized in that: described enhancement mode 3D detecting module comprises a display module and a driver, described display module comprises multiple pixel cell, described multiple pixel cell, pressure sensitivity unit group and the described touch control unit of described at least one pressure sensitivity unit are directly or indirectly electrically connected to described driver.
8. enhancement mode 3D detecting module as claimed in claim 7, it is characterized in that: described touch-control sensing layer is arranged between described display module and described pressure sensitive layer, between described touch-control sensing layer and described display module, between described touch-control sensing layer and described pressure sensitive layer, be at least provided with a screen layer.
9. enhancement mode 3D detecting module as claimed in claim 1, it is characterized in that: described at least one pressure sensitivity unit is the pressure sensitivity unit of at least two series connection, the corresponding internal resistance of pressure sensitivity unit of described at least two series connection is RF0, RF1, RF2RFn, the reference resistance RC0 mated one by one with it is provided with near the pressure sensitivity unit of described at least two series connection, RC1, RC2RCn, described enhancement mode 3D detecting module comprises a pressure signal processor further, this pressure signal processor comprises a resistance Ra, one resistance Rb, multiplexer MUX1 and multiplexer MUX2, described RF0, RF1, RF2RFn accesses the input end of described multiplexer MUX1, described RC0, RC1, RC2RCn accesses the input end of described multiplexer MUX2, described multiplexer MUX1 and MUX2 selects resistance RFn and RCn matched export and form Wheatstone bridge with resistance Ra and Rb respectively, described RF0, RF1, RF2RFn change in resistance amount is associated with the pressing force value suffered by it.
10. enhancement mode 3D detecting module as claimed in claim 1, it is characterized in that: enhancement mode 3D detecting module comprises a upper substrate and further and shows module, described display module comprises the upper polaroid set gradually from top to bottom, one upper substrate, a liquid crystal layer, an infrabasal plate and once polaroid, described touch-control sensing layer is arranged on described upper polaroid lower surface, or described upper substrate upper surface or lower surface, or described infrabasal plate upper surface or lower surface, or on described lower polaroid lower surface.
11. enhancement mode 3D detecting modules as described in any one of claim 1-10, it is characterized in that: described at least one pressure sensitivity unit comprises the pressure sensitivity unit of at least two series connection, the pressure sensitivity unit of described at least two series connection is regular hexagon, or " rice " font, or square, or triangle, or rhombus or other are irregularly shaped.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105404432A (en) * | 2016-01-05 | 2016-03-16 | 京东方科技集团股份有限公司 | Pressure sensitive panel and detection method, 3D (three dimensional) touch panel and touch display panel |
| CN106020559A (en) * | 2016-06-30 | 2016-10-12 | 华为技术有限公司 | Pressure induction detection device, electronic equipment and touch display screen |
| CN106990861A (en) * | 2016-01-20 | 2017-07-28 | 丽智科技股份有限公司 | Intelligent sensing touch device |
| 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 |
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| CN105404432A (en) * | 2016-01-05 | 2016-03-16 | 京东方科技集团股份有限公司 | Pressure sensitive panel and detection method, 3D (three dimensional) touch panel and touch display panel |
| WO2017117962A1 (en) * | 2016-01-05 | 2017-07-13 | 京东方科技集团股份有限公司 | Pressure sensing panel and detection method, 3d touch control panel and touch control display panel |
| US20180210596A1 (en) * | 2016-01-05 | 2018-07-26 | Boe Technology Group Co., Ltd. | Pressure-Sensitive Panel and Detection Method Thereof, 3D Touch Panel and Touch Display Panel |
| CN105404432B (en) * | 2016-01-05 | 2019-02-12 | 京东方科技集团股份有限公司 | Pressure sensitive panel and detection method, 3D touch panel, touch-control display panel |
| US10216310B2 (en) * | 2016-01-05 | 2019-02-26 | Boe Technology Group Co., Ltd. | Pressure-sensitive panel and detection method thereof, 3D touch panel and touch display panel |
| CN106990861A (en) * | 2016-01-20 | 2017-07-28 | 丽智科技股份有限公司 | Intelligent sensing touch device |
| CN106020559A (en) * | 2016-06-30 | 2016-10-12 | 华为技术有限公司 | Pressure induction detection device, electronic equipment and touch display screen |
| WO2018001064A1 (en) * | 2016-06-30 | 2018-01-04 | 华为技术有限公司 | Pressure-sensing detection apparatus, electronic device and touch display screen |
| CN106020559B (en) * | 2016-06-30 | 2018-05-29 | 华为技术有限公司 | Pressure sensitive detection device, electronic equipment and touch display screen |
| US10852873B2 (en) | 2016-06-30 | 2020-12-01 | Huawei Technologies Co., Ltd. | Pressure-sensitive detection apparatus, electronic device, and touch display screen |
| 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 |
| CN107797702B (en) * | 2017-10-20 | 2021-02-26 | 厦门天马微电子有限公司 | Pressure sensor, display panel and display device |
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