CN105117080A - Touch apparatus integrating pressure-sensing function - Google Patents
Touch apparatus integrating pressure-sensing function Download PDFInfo
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- CN105117080A CN105117080A CN201510484078.XA CN201510484078A CN105117080A CN 105117080 A CN105117080 A CN 105117080A CN 201510484078 A CN201510484078 A CN 201510484078A CN 105117080 A CN105117080 A CN 105117080A
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Abstract
The present invention discloses a touch apparatus integrating a pressure-sensing function. A display module is disposed at the bottom of the touch apparatus; a touch module and a cover body are disposed above the display module; the touch module is located on a conducting layer on the surface of the display module and is connected to the display module; a gap is formed between the touch module and the display module; the cover body is connected to and covers the touch module; when external touch force is applied to the cover body, the touch module bends in a force application direction of the external force due to the pressure, so that the change of the gap can lead to corresponding change of the capacitance and the pressure; and a specific frequency signal is configured for the display module and can distinguish the capacitance between the touch module and the display module, changed by the external force, and the pressure on the cover body and the touch module. According to the apparatus provided by the present invention, the pressure is sensed by using the change of the gap distance, and it is easier for the specific frequency signal in the display module to distinguish the external force such as finger clicking, and the pressure sensed capacitance.
Description
Technical field
The present invention is the design about a kind of contactor control device, particularly about a kind of can by the change of touch-control pressure and wherein capacitance to carry out the contactor control device of the integration pressure-sensing function of pressure-sensing.
Background technology
Along with the universalness of touch controllable function, many high-tech products all have the function of touch-control, operate in the mode clicking touch-control.If can be subdivided into according to the sensing mode of touch-control: electric signal, it is as resistance-type, condenser type and electromagnetic type etc. again; Light signal, it is as infrared-type etc.; Audio communication number, it is as surface acoustic wave type, sound wave conduction, dispersion signal formula and sound pulse formula etc.But main flow touch technology is now based on capacitance touching control, compared to early stage electric resistance touch-control, condenser type is non-direct contact type touch-control, has higher reliability.
Current capacitance touching control, it is that detecting human finger is close to capacitance variations during contact panel, to learn the coordinate position of finger, when finger presses energetically, the flexible finger-joint of human body becomes large with skin by making the contact area contacting contact panel, and to become by algorithm calculating contact area be greatly because point the relation of defeating greatly again, and with the sensing of simulated pressure by this.But this pressure sensing method will have two problems, if one is when using passive type pointer or other metal bar, then with the flexible skin of human body, and cannot can increase the area touching contact panel; Another is then the variable quantity that the size pointed will affect contact area.
From the above, the method of pressure-sensing has and can be arranged in pointer, during by use pointer, the contraction of the pointed shape of pointer is caused because of different applying pressure, again by detecting the change of nib to learn the size of touch-control pressure, such as, can detect the stroke of nib with infrared optical gate, or pressure-sensing assembly is arranged at contactor control device, such as can increase pressure-sensing device at the display back side, also can to have whole formula, strip type or dot type; Or increase pressure-sensing device in display front, but in order to avoid the Presentation Function in the display frame region that has influence on display front, the pressure-sensing device that display front increases comparatively mostly is strip type or dot type, and uses the device of pressure-sensing to have such as piezoelectric, pressure drag induction, condenser type and thin-film electro resistive etc.
But in general capacitive touch device, if install pressure-sensing device additional again, then can increase the integral thickness of contactor control device, even glue material when display panel being assembled in mobile phone, such as double faced adhesive tape (Double-StickAttach, DSA), the materials such as foam (Sponge or Gasket) replace with piezoelectric, though the integral thickness of contactor control device therefore can not increased, but the signal of pressure-sensing device need be supplied to system end, need again to increase a circuit again newly to connect, and need a specific IC chip processing pressure sensing signal, no matter on thickness or newly-increased circuit and chip cost, when a large amount of production contactor control device, all be appreciable cost payout.
Therefore, because the disappearance of prior art, the present invention proposes a kind of contactor control device integrating pressure-sensing function.
Summary of the invention
Fundamental purpose of the present invention is providing a kind of contactor control device integrating pressure-sensing function, when utilizing pressed by external force lid and contact panel, because lid and contact panel bend towards force direction, and change the distance of the conductive layer of contact panel and display module, change by the conductive layer changed on display module and the distance between touch-control module, and then carry out pressure-sensing because the capacitance between display module and touch-control module changes.
Another object of the present invention is providing a kind of contactor control device integrating pressure-sensing function, utilize because the conductive layer on change display module and the distance between touch-control module change, and capacitance is changed and compared with the characteristic frequency signal in display module, more easily distinguish the difference of capacitance signal that finger and pressure produce by this.
Another object of the present invention is providing a kind of contactor control device integrating pressure-sensing function, because of in conjunction with pressure-sensing and distinguish the difference of capacitance signal that finger and pressure produces, the present invention can be made to save pressure-sensing device of the prior art, and integrally-built thickness can be saved, and more save expensive manufacturing cost.
To achieve the above object, the invention provides a kind of contactor control device integrating pressure-sensing function, it comprises a display module and wherein a surface has a conductive layer, and in conductive layer, is provided with at least one characteristic frequency signal; One touch-control module be positioned at display module conductive layer on and be connected to display module, and and be provided with a gap between the conductive layer of display module, a capacitance can be produced with display module when touch-control module is subject at least one external force touch-control; And one lid be positioned on touch-control module, lid connects and covers touch-control module, and when lid bears at least one external force touch-control, lid and touch-control module can afford pressure and bend with the force direction towards at least one external force, with the change making the change in gap can produce corresponding capacitance and pressure, and by the characteristic frequency signal in display module with distinguish external force change the pressure that capacitance between touch-control module and display module and lid and touch-control module bear.
Wherein, the contactor control device of described integration pressure-sensing function more comprises a supporting layer, its be located on touch-control module and display module conductive layer between, supporting layer be and touch-control module and display module conductive layer between form gap
Wherein, the contactor control device of described integration pressure-sensing function more comprises a supporting layer, its be arranged at lid and display module conductive layer around, supporting layer forms gap with between the conductive layer of the touch-control module and display module that are connected lid.
Wherein, the contactor control device of described integration pressure-sensing function more comprises a filling material, and it to be filled in the gap between touch-control module, the conductive layer of display module and supporting layer; This filling material viscose, such as optics viscose.
Wherein, described touch-control module more comprises an emission layer, its be positioned at display module conductive layer on and be engaged to display module, and and produce gap between the conductive layer of display module, there is in emission layer the induced emission bar that plural number is arranged in parallel; And one receiving layer be positioned on emission layer, receiving layer has plural number induction arranged in parallel and receives bar, and these inductions of receiving layer receive bars is be staggered with these induced emission bars of emission layer.
Wherein, the contactor control device of described integration pressure-sensing function more comprises a pressure-sensing chip, it is electrically connected touch-control module and display module, and can control and detect the pressure size that at least one external force bestows, and this external force is that contact is clicked or weight is clicked.
Wherein, described touch-control module more comprises a capacitive touch chip, and it is can in conjunction with pressure-sensing chip, to be integrated into an integrated chip.
Wherein, described conductive layer is conductive film, conductive shielding layer (conductiveshieldlayer), electrostatic screening layer (ElectrostaticDischargeshieldlayer) or sub-picture element copolar layer (VCOMlayer).
Under to coordinate by specific embodiment appended by graphicly to illustrate in detail, when the effect being easier to understand object of the present invention, technology contents, feature and reach.For achieving the above object, the invention provides a kind of theme one, correspondence lists the technical scheme of exclusive rights.
Accompanying drawing explanation
Fig. 1 is the structural representation of first embodiment of the invention.
Fig. 2 is the structural representation that filling material is filled up in first embodiment of the invention gap.
Fig. 3 a to Fig. 3 b is the illustrative view of first embodiment of the invention.
Fig. 4 is the structural representation of second embodiment of the invention.
Fig. 5 is the structural representation that filling material is filled up in second embodiment of the invention gap.
Fig. 6 a to Fig. 6 b is the illustrative view of second embodiment of the invention.
Fig. 7 a to Fig. 7 b is the simple and easy schematic diagram of touch-control module of the present invention.
Drawing reference numeral illustrates:
The contactor control device of 10 integration pressure-sensing functions
12 display modules
14 touch-control modules
16 lids
18 supporting layers
20 conductive layers
22 gaps
24 filling materials
26 fingers
28 emission layers
282a ~ 282h induced emission bar
30 receiving layers
302a ~ 302f induction receives bar
Embodiment
Popularizing of touch controllable function in contactor control device, along with the technical progress using touch-control, contactor control device to be marched toward maturation already for the touch-control sensitivity techniques of user, but still the pressure that need cause to sense touch-control by touch sensing device, touch sensing device then can increase the manufacture manufacturing cost of contactor control device and the lifting of thickness, and disclosed technical characteristic then can exempt the existing touch sensing device of installation.
First, shown in Fig. 1 of the present invention, a kind of contactor control device 10 integrating pressure-sensing function, it comprises display module 12, touch-control module 14, lid 16 and a supporting layer 18.The surface of display module 12 has a conductive layer 20, conductive layer 20 can be conductive film, conductive shielding layer (conductiveshieldlayer), electrostatic screening layer (ElectrostaticDischargeshieldlayer) or sub-picture element copolar layer (VCOMlayer), in the present embodiment, conductive layer 20 is conductive shielding layer, and be provided with at least one characteristic frequency signal in conductive layer 20; Touch-control module 14 is conductive layer 20 upper stratas being positioned at display module 12, and touch-control module 14 is also connected to display module 12; Lid 16 is positioned on touch-control module 14, and lid 16 connects and covers touch-control module 14, and in the present embodiment, lid 16 is transparency protected shell; Supporting layer 18 be located on touch-control module 14 and display module 12 conductive layer 20 between, make to utilize supporting layer 18 to form a gap 22 between touch-control module 14 and conductive layer 20.Moreover, please refer to shown in Fig. 2 of the present invention, gap 22 between the conductive layer 20 of touch-control module 14 and display module 12 and supporting layer 18 is an accommodation space, wherein more can fill up a filling material 24, in the present embodiment, filling material 24 is the viscose just like optics viscose (OpticallyClearAdhesive, OCA).
Accept epimere, after structure of the present invention has been described, continue illustrate that the present invention integrates the contactor control device 10 of pressure-sensing function make flowing mode, please refer to shown in Fig. 3 a of the present invention, when the finger 26 of user contacts click to touch lid 16, a capacitance can be produced between touch-control module 14 and display module 12, and can by integrating pressure-sensing chip set in the contactor control device 10 of pressure-sensing function, it to be installed in the contactor control device 10 of integration pressure-sensing function, such as be incorporated in touch-control module 14, pressure-sensing chip is electrically connected to touch-control module 14 and display module 12, and can control and detect the finger 26 of user contact the position and the pressure size of pressing clicked.If when the finger 26 of at least one external force as user give the larger pressure weight of lid 16 click time, now please refer to shown in Fig. 3 b of the present invention, lid 16 and touch-control module 14 can afford pressure, and bend towards the force direction of the finger 26 of user, with the change making the change in gap 22 can produce corresponding capacitance and pressure, when the finger 26 of user bestows larger pressure to lid 16, the change in gap 22 can make the distance of touch-control module 14 and conductive layer 20 become less, and now the capacitance of touch-control module 14 and display module 12 can be caused to become large because distance diminishes, the characteristic frequency signal be provided with in display module 12 then can distinguish because of point 26 external force change the pressure size that capacitance between touch-control module 14 and display module 12 and lid 16 and touch-control module 14 bear, and the interference source that may cause when many group characteristic frequency signals can be set to avoid finger 26 touch-control, according to different characteristic frequency signals to distinguish the electric capacity signal produced when finger 26 contacts and clicks, or because of point 26 or other external force institutes weight click time the electric capacity signal of pressure-sensing that causes.
In addition, mainly arrange due to supporting layer and be supported between touch-control module or display module, or can avoid being arranged on the induction zone of touch-control module, more contribute to the detecting of touch-control sensing, the present invention reoffers an embodiment and supporting layer can be arranged between lid and display module, as shown in Fig. 4 of the present invention, a kind of contactor control device 10 integrating pressure-sensing function, it comprises display module 12, touch-control module 14, lid 16 and a supporting layer 18.The surface of display module 12 has a conductive layer 20, conductive layer 20 is also can be conductive film, conductive shielding layer, electrostatic screening layer or VCOM layer, in the present embodiment, conductive layer 20 is also can be conductive shielding layer, and is provided with at least one characteristic frequency signal in conductive layer 20; Touch-control module 14 is conductive layer 20 upper stratas being positioned at display module 12, and touch-control module 14 is also connected to display module 12; Lid 16 is positioned on touch-control module 14, and lid 16 connects and covers touch-control module 14, and in the present embodiment, lid 16 is transparency protected shell; Supporting layer 18 be arranged at lid 16 and display module 12 conductive layer 20 around, a gap 22 is formed with being connected between the touch-control module 14 of lid 16 and conductive layer 20 to utilize supporting layer 18, and please refer to shown in Fig. 5 of the present invention, gap 22 between the conductive layer 20 of touch-control module 14 and display module 12 is an accommodation space, wherein more can fill up a filling material 24, in the present embodiment, filling material 24 is also be an OCA viscose.
Accept epimere, after the structure that another embodiment of the present invention has been described, continue illustrate this embodiment make flowing mode, please refer to shown in Fig. 6 a of the present invention, when the finger 26 of user contacts click to touch lid 16, a capacitance can be produced between touch-control module 14 and display module 12, and can by the finger 26 of pressure-sensing chip controls and detecting user contact position and the pressure size of pressing of click.If when the finger 26 of at least one external force as user give the larger pressure weight of lid 16 click time, now please refer to shown in Fig. 6 b of the present invention, lid 16 and touch-control module 14 can afford pressure, and bend towards the force direction of the finger 26 of user, with the change making the change in gap 22 can produce corresponding capacitance and pressure, when the finger 26 of user gives larger pressure, the change in gap 22 can make the distance of touch-control module 14 and conductive layer 20 become less, and now the capacitance of touch-control module 14 and display module 12 can be caused to become large because distance diminishes, the characteristic frequency signal be provided with in display module 12 then can distinguish because of point 26 external force change the pressure size that capacitance between touch-control module 14 and display module 12 and lid 16 and touch-control module 14 bear, and the interference source that may cause when many group characteristic frequency signals can be set to avoid finger 26 or other external force touch-control as tactile tools such as pointer, according to different characteristic frequency signals to distinguish the electric capacity signal produced when finger 26 contacts and clicks, or because of point 26 or other external force institutes weight click time the electric capacity signal of pressure-sensing that causes.
Moreover, because touch-control module of the present invention is identical with existing touch-control module structure, this again enumeration emission layer in touch-control module and the receiving layer difference for induction pressure is described.First please also refer to shown in Fig. 7 a of the present invention, Fig. 7 a mainly describes the structure of touch-control module 14, therefore in Fig. 7 a, lid, supporting layer and display module is eliminated, an emission layer 28 and receiving layer 30 is more comprised in touch-control module 14, wherein emission layer 28 be positioned at display module conductive layer 20 on and be engaged to display module, and and produce gap between the conductive layer 20 of display module, have the induced emission bar that plural number is arranged in parallel in emission layer 28, be have four induced emission bar 282a ~ 282d in the present embodiment; Receiving layer 30 is positioned on emission layer 28, and there is plural number induction reception bar arranged in parallel, in the present embodiment, have three to respond to receive bar 302a ~ 302c, and the induction of receiving layer 30 reception bar 302a ~ 302c is staggered with the induced emission bar 282a ~ 282d of emission layer 28.Please refer again to shown in Fig. 3 b simultaneously, when finger 26 causes touch-control module 14 to diminish with gap 22 distance of the conductive layer 20 of display module 12 by gland body 16, spacing due to induced emission bar 282a ~ 282d is less than 0.2 millimeter of (millimeter, mm), the shape of emission layer 28 is made to be similar to conductive layer 20, the transparency conducting layer in touch-control module 14 then can be made cannot to receive the increase of capacitance signal, therefore can switch by pressure-sensing chip, when detecting the pressure bestowed from external force, receiving layer 30 is failure to actuate, now pressure-sensing chip then detects the change of capacitance and the pressure produced between emission layer 28 and conductive layer 20.
Separately, shown in Fig. 7 b of the present invention, Fig. 7 b is also mainly the structure describing touch-control module 14, therefore in Fig. 7 b, also omit lid, supporting layer and display module, an emission layer 28 and receiving layer 30 is more comprised in touch-control module 14, wherein emission layer 28 be positioned at display module conductive layer 20 on and be engaged to display module, and and produce gap between the conductive layer 20 of display module, have the induced emission bar that plural number is arranged in parallel in emission layer 28, be have four induced emission bar 282e ~ 282h in the present embodiment, receiving layer 30 is positioned on emission layer 28, and there is plural number induction reception bar arranged in parallel, in the present embodiment, there are three to respond to receive bar 302d ~ 302f, and the induction of receiving layer 30 reception bar 302d ~ 302f is staggered with the induced emission bar 282e ~ 282h of emission layer 28, from the difference of Fig. 7 b, Fig. 7 a of the present invention is only that the spacing of induced emission bar is different, the scope of the spacing of the induced emission bar 282e ~ 282h of emission layer 28 is then between 1 ~ 3mm, distance is larger than Fig. 7 a of the present invention, pressure-sensing chip then can directly detect receiving layer 30 and the suffered external force as pointed of conductive layer 20 or other external force the change of the pressure that causes and capacitance.
In sum, the contactor control device of integration pressure-sensing function of the present invention can change by the conductive layer on display module and the clearance distance between touch-control module and carries out pressure-sensing and be installed in as in mobile phone or the device such as dull and stereotyped.Wherein, pressure-sensing chip is except being incorporated in the touch-control module in the contactor control device integrating pressure-sensing function, can also be installed in the system board in mobile phone or flat board in addition, or the capacitive touch chip in touch-control module is combined, to be integrated into an integrated chip, and integrated chip is installed in touch-control module, or in the system board being installed in mobile phone or flat board in addition, and in display module, input characteristic frequency signal with the capacitance signal more easily distinguishing finger and produce and the capacitance signal sensing pressure and cause, the setting of supporting layer is except above-mentioned two kinds of different structures in addition, can also be arranged between lid and system chassis.Contactor control device through integration pressure-sensing function of the present invention can save pressure-sensing device of the prior art, to reduce integrally-built thickness and to save expensive manufacturing cost.
Above-described embodiment is only for technological thought of the present invention and feature are described, its object understands content of the present invention implementing according to this enabling the personage haveing the knack of this skill, when can not with restriction the scope of the claims of the present invention, namely the equalization generally done according to disclosed spirit changes or modifies, and must be encompassed in the scope of the claims of the present invention.
Claims (16)
1. integrating a contactor control device for pressure-sensing function, it is characterized in that, is comprise:
One display module, surface thereof has a conductive layer, and is provided with at least one characteristic frequency signal in this conductive layer;
One touch-control module, its be positioned at this display module this conductive layer on and be connected to this display module, and and be provided with a gap between this conductive layer of this display module, a capacitance can be produced with this display module when this touch-control module is subject at least one external force touch-control; And
One lid, it is positioned on this touch-control module, this lid connects and covers this touch-control module, and when this lid bears this at least one external force touch-control, this lid and this touch-control module can afford pressure and bend with the force direction towards this at least one external force, to make the change in this gap can produce should the change of capacitance and this pressure, and by this characteristic frequency signal in this display module with distinguish this external force change this pressure that this capacitance between this touch-control module and this display module and this lid and this touch-control module bear.
2. the contactor control device integrating pressure-sensing function as claimed in claim 1, it is characterized in that, more comprise a supporting layer, its be located on this touch-control module and this display module this conductive layer between, this supporting layer be and this touch-control module and this display module this conductive layer between form this gap.
3. the contactor control device integrating pressure-sensing function as claimed in claim 1, it is characterized in that, more comprise a supporting layer, its be arranged at this lid and this display module this conductive layer around, this supporting layer forms this gap with between this conductive layer of this touch-control module and this display module of being connected this lid.
4. integrate as claimed in claim 2 or claim 3 the contactor control device of pressure-sensing function, it is characterized in that, more comprise a filling material, it to be filled in this gap between this touch-control module, this conductive layer of this display module and this supporting layer.
5. the contactor control device integrating pressure-sensing function as claimed in claim 4, it is characterized in that, this filling material is viscose.
6. the contactor control device integrating pressure-sensing function as claimed in claim 5, it is characterized in that, this viscose is optics viscose.
7. the contactor control device integrating pressure-sensing function as claimed in claim 1, it is characterized in that, this touch-control module more comprises:
One emission layer, its be positioned at this display module this conductive layer on and be engaged to this display module, and and produce this gap between this conductive layer of this display module, there is in this emission layer the induced emission bar that plural number is arranged in parallel; And
One receiving layer, this receiving layer is positioned on this emission layer, and this receiving layer has plural number induction arranged in parallel and receives bar, and these induction reception bars of this receiving layer are staggered with these induced emission bars of this emission layer.
8. the contactor control device integrating pressure-sensing function as claimed in claim 1, it is characterized in that, more comprise a pressure-sensing chip, it is electrically connected this touch-control module and this display module, and can control and detect this pressure size that this at least one external force bestows.
9. the as claimed in claim 8 contactor control device integrating pressure-sensing function, it is characterized in that, this touch-control module more comprises a capacitive touch chip, and it is can in conjunction with this pressure-sensing chip, to be integrated into an integrated chip.
10. the contactor control device integrating pressure-sensing function as claimed in claim 1, is characterized in that, this external force is for contact is clicked.
11. contactor control devices integrating as claimed in claim 1 pressure-sensing functions, is characterized in that, this external force is that pressure point of attaching most importance to hits.
12. contactor control devices integrating pressure-sensing function as claimed in claim 1, it is characterized in that, this conductive layer is conductive film.
13. contactor control devices integrating pressure-sensing function as claimed in claim 1, it is characterized in that, this conductive layer is conductive shielding layer.
14. contactor control devices integrating pressure-sensing function as claimed in claim 1, it is characterized in that, this conductive layer is electrostatic screening layer.
15. contactor control devices integrating pressure-sensing function as claimed in claim 1, it is characterized in that, this conductive layer is sub-picture element copolar layer.
16. contactor control devices integrating pressure-sensing function as claimed in claim 1, it is characterized in that, this lid is transparency protected shell.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510484078.XA CN105117080A (en) | 2015-08-07 | 2015-08-07 | Touch apparatus integrating pressure-sensing function |
| TW104127350A TWI592853B (en) | 2015-08-07 | 2015-08-21 | Touch device with integrated pressure sensing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510484078.XA CN105117080A (en) | 2015-08-07 | 2015-08-07 | Touch apparatus integrating pressure-sensing function |
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| CN105117080A true CN105117080A (en) | 2015-12-02 |
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| CN201510484078.XA Pending CN105117080A (en) | 2015-08-07 | 2015-08-07 | Touch apparatus integrating pressure-sensing function |
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| TW (1) | TWI592853B (en) |
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