CN210573726U - Electromagnetic capacitor touch module and electromagnetic capacitor screen - Google Patents
Electromagnetic capacitor touch module and electromagnetic capacitor screen Download PDFInfo
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- CN210573726U CN210573726U CN201920997904.4U CN201920997904U CN210573726U CN 210573726 U CN210573726 U CN 210573726U CN 201920997904 U CN201920997904 U CN 201920997904U CN 210573726 U CN210573726 U CN 210573726U
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Abstract
The utility model relates to a touch-sensitive screen field especially relates to an electromagnetism electric capacity touch module and electromagnetism electric capacity screen. The electromagnetic capacitance touch module comprises a substrate, a capacitance unit and an electromagnetic unit, wherein the capacitance unit comprises a capacitance induction unit and a capacitance driving unit, the electromagnetic unit comprises an electromagnetic induction unit and an electromagnetic driving unit, the capacitance induction unit and the electromagnetic induction unit are located on a first surface layer, the capacitance driving unit and the electromagnetic driving unit are located on a second surface layer, a first bonding layer is arranged between the substrate and the first surface layer, and a second bonding layer is arranged between the first surface layer and the second surface layer. By integrating the sensing unit and the driving unit on the first surface layer and the second surface layer respectively, double touch control of the stylus is realized. Simultaneously with first top layer and second top layer separate through the second tie coat, realized the insulation treatment between induction element and the drive unit, avoided the cross short circuit problem that probably appears, improved touch module's functional stability.
Description
Technical Field
The utility model relates to a touch-sensitive screen field especially relates to an electromagnetism electric capacity touch module and electromagnetism electric capacity screen.
Background
The capacitive touch technology is mainly applied to products directly touched by fingers, such as mobile phones, tablet computers, video playing terminals and the like. The capacitive touch sensor mainly adopts an array structure in dense arrangement, and when a finger touches the array structure, the touch point is positioned by detecting a high-speed current or voltage scanning signal conducted by the finger.
The inductive touch technology is mainly applied to products which use a pen emitting electromagnetic signals to write, such as electronic whiteboards, children learning machines and the like. The inductive touch sensor mainly utilizes the electromagnetic induction antenna array to detect the position information of the electromagnetic pen in the electromagnetic induction antenna array so as to realize the positioning of the touch point of the electromagnetic pen.
The realization of the dual touch function combining handwriting and pen writing on the same product is a hot problem in the field. Chinese patent application publication No. CN105204702A discloses an electromagnetic capacitive touch screen, which includes a plurality of capacitive modules and electromagnetic modules located on the same layer, wherein at least two transverse/longitudinal electromagnetic induction lines are provided between two adjacent rows of capacitive induction units arranged in the transverse/longitudinal direction, and the directions of currents in the at least two longitudinal electromagnetic induction lines are opposite. According to the scheme, the plurality of capacitance induction units and the plurality of electromagnetic induction units are arranged at intervals, so that the double-touch function of the stylus is realized. However, in the scheme, one of the at least two transverse electromagnetic induction lines and one of the at least two longitudinal electromagnetic induction lines need to be connected through a bridging structure at the position where the two are insulated and crossed, so as to prevent the induction lines from being crossed and contacted to generate short circuit. In practical application, the metal points of the bridging process reflect light to affect the appearance of the touch screen by adopting the bridging process for connection; meanwhile, in the using process, the bridging is easy to break, the stability of functions is affected, and the bridging process cannot be repeatedly bent, so that the application range of the touch screen is limited.
SUMMERY OF THE UTILITY MODEL
To above technical problem, the utility model provides an electromagnetic capacitive screen has both realized the two touch-control functions of pen-holder, has excellent functional stability again and resistant bending performance.
The utility model adopts the following technical scheme:
the utility model provides an electromagnetic capacitance touch module, includes the base plate, electric capacity unit and electromagnetism unit, the electric capacity unit includes electric capacity induction element and electric capacity drive unit, the electromagnetism unit includes electromagnetic induction element and electromagnetic drive unit, electric capacity induction element and electromagnetic induction element are located first top layer, electric capacity drive unit and electromagnetic drive unit are located the second top layer, be provided with first tie coat between base plate and the first top layer, be provided with the second tie coat between first top layer and the second top layer.
Furthermore, the capacitance induction unit comprises a plurality of parallel capacitance induction electrodes, the electromagnetic induction unit comprises a plurality of parallel electromagnetic induction electrodes, and the capacitance induction electrodes and the electromagnetic induction electrodes are parallel to each other and are sequentially arranged at intervals; the capacitance driving unit comprises a plurality of parallel capacitance driving electrodes, the electromagnetic driving unit comprises a plurality of parallel electromagnetic driving electrodes, and the capacitance driving electrodes and the electromagnetic driving electrodes are parallel to each other and are sequentially arranged at intervals; the capacitance induction electrode and the capacitance driving electrode are vertical to each other, and the electromagnetic induction electrode and the electromagnetic driving electrode are vertical to each other.
Furthermore, the capacitance induction electrode and the capacitance driving electrode are made of silver nanowires, and the electromagnetic induction electrode and the electromagnetic driving electrode are made of silver nanowires.
Furthermore, first tie coat and second tie coat are OCA optical cement layer.
Furthermore, the substrate is made of glass, plastic, flexible circuit board, polyethylene or insulating film.
Further, the first surface layer and the second surface layer are connected to the FPC through lead-out wires.
Furthermore, the outgoing line is made of silver nanowires.
Further, the first surface layer and the second surface layer are connected to the FPC through point silver paste.
The utility model also provides an electromagnetism electric capacity screen, including above-mentioned electromagnetism electric capacity touch-control module and with the display panel of the range upon range of setting of touch-control module.
The utility model discloses an electromagnetism electric capacity touch-control module, through integrating electric capacity induction element and electromagnetic induction unit on first top layer, integrate electric capacity drive unit and electromagnetic drive unit on the second top layer, realized the integration of two functions of electromagnetism electric capacity on the basis that does not increase electrode material, make it both have electric capacity response touch-control ability, have the former handwriting of electromagnetism again and write the function, realized the two touch-controls of hand pen. Meanwhile, the first surface layer and the second surface layer are separated through the second bonding layer, so that the insulation processing between the sensing unit and the driving unit is realized, the problem of cross short circuit which possibly occurs is avoided, the problem of bridge breakage which easily occurs by adopting bridge connection is also avoided, and the functional stability of the touch module is improved.
Drawings
For a clearer explanation of the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a cross-sectional view of an electromagnetic capacitive touch module according to the present invention;
fig. 2 is a schematic structural diagram of the electromagnetic capacitive touch module of the present invention;
fig. 3 is another schematic structural diagram of the electromagnetic capacitive touch module according to the present invention;
in the figure: 1-substrate, 2-first surface layer, 3-second surface layer, 4-first bonding layer, 5-second bonding layer, 6-capacitance induction electrode, 7-electromagnetic induction electrode, 8-capacitance drive electrode, 9-electromagnetic drive electrode, 10-outgoing line and 11-point silver adhesive.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model provides an electromagnetic capacitance touch module, as shown in fig. 1, including base plate 1, electric capacity unit and electromagnetic unit, electric capacity unit includes electric capacity induction element and capacitive drive unit, electromagnetic unit includes electromagnetic induction element and electromagnetic drive unit, electric capacity induction element and electromagnetic induction element are located first top layer 2, electric capacity drive unit and electromagnetic drive unit are located second top layer 3, be provided with first tie coat 4 between base plate 1 and the first top layer 2, be provided with second tie coat 5 between first top layer 2 and the second top layer 3.
The utility model discloses an electromagnetism electric capacity touch-control module, through integrating electric capacity induction element and electromagnetic induction unit on first top layer 2, integration electric capacity drive unit and electromagnetic drive unit on second top layer 3 have realized the integration of two functions of electromagnetism electric capacity on the basis that does not increase electrode material, make it both have electric capacity response touch-control ability, have the former handwriting of electromagnetism again and write the function, realized the two touch-controls of hand pen. Meanwhile, the first surface layer 2 and the second surface layer 3 are separated through the second bonding layer 5, so that the insulation processing between the sensing unit and the driving unit is realized, the problem of cross short circuit which possibly occurs is avoided, the problem of bridge breakage which easily occurs in bridge connection is also avoided, and the functional stability of the touch module is improved.
Specifically, as shown in fig. 2 and 3, the capacitance sensing unit includes a plurality of capacitance sensing electrodes 6 parallel to each other, the electromagnetic sensing unit includes a plurality of electromagnetic sensing electrodes 7 parallel to each other, and the capacitance sensing electrodes 6 and the electromagnetic sensing electrodes 7 are parallel to each other and sequentially spaced; the capacitance driving unit comprises a plurality of parallel capacitance driving electrodes 8, the electromagnetic driving unit comprises a plurality of parallel electromagnetic driving electrodes 9, and the capacitance driving electrodes 8 and the electromagnetic driving electrodes 9 are parallel to each other and are sequentially arranged at intervals; the capacitance induction electrode 6 and the capacitance driving electrode 8 are perpendicular to each other, and the electromagnetic induction electrode 7 and the electromagnetic driving electrode 9 are perpendicular to each other. More specifically, the capacitance sensing electrode 6 and the electromagnetic sensing electrode 7 are disposed in parallel and insulated from each other, and the capacitance driving electrode 8 and the electromagnetic driving electrode 9 are disposed in parallel and insulated from each other. In the figure, each induction electrode and each driving electrode are perpendicular to each other and overlap, but due to the insulating effect of the second adhesive layer, the first surface layer and the second surface layer are insulated from each other, that is, the induction electrodes and the driving electrodes are insulated from each other and do not contact each other and do not interfere with each other in practical application.
More specifically, the capacitive driving electrodes 8, the electromagnetic driving electrodes 9, the capacitive sensing electrodes 6 and the electromagnetic sensing electrodes 7 are arranged in parallel at intervals, the electrodes are insulated and do not contact with each other, the distance between the electrodes and the number of the electromagnetic/capacitive sensing/driving electrodes are not specifically limited, the electrodes can be distributed according to the size of a product or selected according to needs, and the finger touch function can be realized at any position through the capacitive unit and the pen touch function can be realized through the electromagnetic unit. The number and spacing of the electromagnetic and capacitive sensing/driving electrodes shown in the drawings is only one possible embodiment and is not intended to limit the scope of the present invention.
Specifically, the capacitive sensing electrode 6 and the capacitive driving electrode 8 are made of silver nanowires, and the electromagnetic sensing electrode 7 and the electromagnetic driving electrode 9 are made of silver nanowires. The silver nanowire material has low impedance and high transmittance performance, and is beneficial to synchronously realizing the electromagnetic capacitance induction function. More specifically, the capacitance induction electrode 6, the electromagnetic induction electrode 7, the capacitance driving electrode 8 and the electromagnetic driving electrode 9 in the vertical direction are prepared by adopting a laser etching process on the silver nanowire conductive paste. The manufacturing process is simple, a photomask mould is not required to be opened, and the mould opening cost is saved.
Specifically, as an embodiment of the present invention, as shown in fig. 2, the first surface layer 2 and the second surface layer 3 are connected to the FPC through lead wires 10. The lead-out wires 10 are made of silver nanowires. Induction electrode and driving electrode and lead-out wire all obtain through adopting the laser etching technology to silver nano wire conductive paste, and silver nano wire has good bendable performance, just the utility model discloses a tie coat separates first top layer and second top layer insulation, does not need additionally to add bridging structure etc. and can reach insulating purpose, makes it have good resistant bending performance. The lead-out wire adopts the silver nano wire material, has improved the toughness and the bendability of lead-out wire, and it is difficult for the fracture to buckle many times. Preferably, when the substrate is the colorless transparent polyimide film that has high rigidity and splendid pliability, the utility model discloses an electromagnetic capacitance touch module can realize buckling more than 20 ten thousand times, satisfies folding equipment and flexible electron device's requirement, greatly increased electromagnetic capacitance touch module's range of application.
Specifically, as another embodiment of the present invention, as shown in fig. 3, the first surface layer 2 and the second surface layer 3 are connected to the FPC by the point silver paste 11. Electrode line leading-out terminal on first top layer 2 and second top layer 3 is glued 11 through some silver and is connected with FPC, has saved the technology that adopts silver nano wire thick liquids etching to form the lead-out wire, for nanometer silver lead wire extraction mode, the design purpose of realization narrow frame that can be better, reduction channel resistance that simultaneously can be better optimizes the product touch and writes experience, and the structure is glued to the point is simpler, convenient effective.
Specifically, the first adhesive layer 4 and the second adhesive layer 5 are OCA optical adhesive layers. The OCA optical cement has excellent bonding effect and good insulating effect, so that the mutually perpendicular electrodes respectively positioned on the first surface layer 2 and the second surface layer 3 are not contacted, the OCA optical cement is effectively insulated, the short circuit phenomenon is prevented, and the insulating treatment of a cross contact part is realized without adding other additional structures. The preparation material of the touch module is simplified, the cost is saved, and the preparation process is simplified.
Specifically, the substrate 1 is made of glass, plastic, flexible circuit board, polyethylene or insulating film. The electromagnetic capacitor touch module can be applied under different conditions by selecting the substrates 1 made of different materials.
Specifically, the thickness of the substrate 1 is 0.7-8mm, and the thickness of the substrate 1 can be changed according to different materials, different processing techniques and different product applications; the first skin layer 2 and the second skin layer 3 have a thickness of 0.05 to 0.188mm, and the first adhesive layer 4 and the second adhesive layer 5 have a thickness of 0.05 to 0.188 mm.
The utility model discloses an electromagnetic capacitance touch module, when the finger touch functional area, can produce the electric capacity signal between finger and the electric capacity response electrode, control IC calculates the touch position coordinate of finger according to electric capacity signal's change. When the electromagnetic pen touches the functional area, an electromagnetic signal is generated between the electromagnetic pen and the electromagnetic induction electrode, and the control IC calculates the touch position coordinate of the electromagnetic pen according to the change of the electromagnetic signal.
The utility model also provides an electromagnetism electric capacity screen, including above-mentioned electromagnetism electric capacity touch-control module and with the display panel of the range upon range of setting of touch-control module.
The present invention has been further described with reference to specific embodiments, but it should be understood that the specific description herein should not be construed as limiting the spirit and scope of the present invention, and that various modifications to the above-described embodiments, which would occur to persons skilled in the art after reading this specification, are within the scope of the present invention.
Claims (9)
1. The utility model provides an electromagnetic capacitance touch module, its characterized in that, includes base plate, electric capacity unit and electromagnetic unit, the electric capacity unit includes electric capacity induction element and capacitive drive unit, the electromagnetic unit includes electromagnetic induction element and electromagnetic drive unit, electric capacity induction element with the electromagnetic induction element is located first top layer, electric capacity drive unit with the electromagnetic drive unit is located the second top layer, the base plate with be provided with first tie coat between the first top layer, first top layer with be provided with the second tie coat between the second top layer.
2. The electromagnetic capacitive touch module of claim 1,
the capacitance induction unit comprises a plurality of parallel capacitance induction electrodes, the electromagnetic induction unit comprises a plurality of parallel electromagnetic induction electrodes, and the capacitance induction electrodes and the electromagnetic induction electrodes are parallel to each other and are sequentially arranged at intervals;
the capacitance driving unit comprises a plurality of parallel capacitance driving electrodes, the electromagnetic driving unit comprises a plurality of parallel electromagnetic driving electrodes, and the capacitance driving electrodes and the electromagnetic driving electrodes are parallel to each other and are sequentially arranged at intervals;
the capacitance induction electrode is perpendicular to the capacitance driving electrode, and the electromagnetic induction electrode is perpendicular to the electromagnetic driving electrode.
3. The electromagnetic capacitive touch module of claim 2, wherein the capacitive sensing electrode and the capacitive driving electrode are made of silver nanowires, and the electromagnetic inductive electrode and the electromagnetic driving electrode are made of silver nanowires.
4. The electromagnetic capacitive touch module according to claim 1, wherein the first adhesive layer and the second adhesive layer are OCA optical adhesive layers.
5. The electromagnetic capacitive touch module of claim 1, wherein the substrate is made of glass, plastic, flexible circuit board, polyethylene, or an insulating film.
6. The electromagnetic capacitive touch module according to claim 1, wherein the first surface layer and the second surface layer are connected to an FPC through lead-out wires.
7. The electromagnetic capacitive touch module according to claim 6, wherein the outgoing lines are made of silver nanowires.
8. The electromagnetic capacitive touch module according to claim 1, wherein the first surface layer and the second surface layer are connected to an FPC by a dispensing adhesive.
9. An electromagnetic capacitive screen, comprising the electromagnetic capacitive touch module of any one of claims 1-8 and a display panel stacked with the touch module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920997904.4U CN210573726U (en) | 2019-06-29 | 2019-06-29 | Electromagnetic capacitor touch module and electromagnetic capacitor screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920997904.4U CN210573726U (en) | 2019-06-29 | 2019-06-29 | Electromagnetic capacitor touch module and electromagnetic capacitor screen |
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| CN210573726U true CN210573726U (en) | 2020-05-19 |
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| CN201920997904.4U Active CN210573726U (en) | 2019-06-29 | 2019-06-29 | Electromagnetic capacitor touch module and electromagnetic capacitor screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111813279A (en) * | 2020-07-13 | 2020-10-23 | 深圳市鸿合创新信息技术有限责任公司 | Touch control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111813279A (en) * | 2020-07-13 | 2020-10-23 | 深圳市鸿合创新信息技术有限责任公司 | Touch control device |
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