CN216249201U - Capacitive electromagnetic touch module, touch screen and electronic equipment - Google Patents
Capacitive electromagnetic touch module, touch screen and electronic equipment Download PDFInfo
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- CN216249201U CN216249201U CN202122794889.3U CN202122794889U CN216249201U CN 216249201 U CN216249201 U CN 216249201U CN 202122794889 U CN202122794889 U CN 202122794889U CN 216249201 U CN216249201 U CN 216249201U
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Abstract
The utility model discloses a capacitive electromagnetic touch module, a touch screen and electronic equipment. In addition, a first electromagnetic channel group is arranged between two adjacent first capacitance induction channels, the first electromagnetic induction channels in different first electromagnetic channel groups are electrically connected through a lead, a second electromagnetic channel group is arranged between two adjacent second capacitance induction channels, and the second electromagnetic induction channels in different second electromagnetic channel groups are electrically connected through a lead, so that the flexibility of line connection is improved compared with the original direct grounding mode.
Description
Technical Field
The utility model relates to the technical field of touch control, in particular to a capacitive electromagnetic touch module, a touch screen and electronic equipment.
Background
The touch technology is widely applied to interactive equipment in various fields as a display auxiliary technology. Touch screens come in many varieties, such as resistive touch screens, capacitive touch screens, and electromagnetic touch screens, depending on the principle of operation. Each touch technology has advantages and disadvantages, and for example, a capacitive touch screen has the advantage of being directly operated by hand, but when writing with a pen, the touch of the hand and the pen is difficult to be accurately distinguished because the palm of the hand is generally placed on the touch screen. When the palm of the electromagnetic touch screen is placed on the touch screen, the position of the electromagnetic pen can be accurately judged.
Based on this, the concept of the hybrid touch technology is developed, that is, two or more touch technologies are used in one touch screen to achieve the purpose of complementary advantages and disadvantages between different touch technologies. At present, in order to realize dual touch by a stylus, capacitive touch and electromagnetic touch are generally used together in a superimposed manner.
However, the existing electromagnetic capacitive touch screen is still separated structurally, the capacitive touch module is located on the light emitting side of the display module and is assembled with the display module through optical cement or frame paste, and the electromagnetic touch module is arranged on the backlight side of the display module. The touch screen is thick, complex in production process and high in cost.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a capacitive electromagnetic touch module, a touch screen and electronic equipment, which can reduce the thickness of the whole machine, realize light weight and thinness, and reduce production processes and production cost.
In a first aspect, an embodiment of the present invention provides a capacitive electromagnetic touch module, including a first channel layer and a second channel layer, where the second channel layer is disposed on the first channel layer and insulated and isolated from the first channel layer;
the first channel layer comprises a plurality of first capacitance induction channels and a plurality of first electromagnetic induction channels, and the first capacitance induction channels and the first electromagnetic induction channels are arranged in parallel and extend along a first direction;
a first electromagnetic channel group is arranged between two adjacent first capacitance induction channels, the first electromagnetic channel group comprises at least two first electromagnetic induction channels, and the first electromagnetic induction channels in different first electromagnetic channel groups are electrically connected through a lead;
the second channel layer comprises a plurality of second capacitance induction channels and a plurality of second electromagnetic induction channels, and the second capacitance induction channels and the second electromagnetic induction channels are arranged in parallel and extend along a second direction;
and a second electromagnetic channel group is arranged between every two adjacent second capacitive sensing channels and comprises at least two second electromagnetic sensing channels, and the second electromagnetic sensing channels in the different second electromagnetic channel groups are electrically connected through a lead.
Optionally, at least one first capacitive sensing channel and at least two first electromagnetic sensing channels are arranged between the two first electromagnetic sensing channels connected by the conducting wire.
Optionally, at least one second capacitive sensing channel and at least two second electromagnetic sensing channels are arranged between the two second electromagnetic sensing channels connected by the conducting wire.
Optionally, the wires connecting the first electromagnetic induction channels in the different first electromagnetic channel groups are FPC jumpers.
Optionally, the conducting wires connecting the second electromagnetic induction channels in different second electromagnetic channel groups are FPC jumpers.
Optionally, the capacitive electromagnetic touch module further includes a press pin, and the first capacitive sensing channel, the first electromagnetic sensing channel, the second capacitive sensing channel, and the second electromagnetic sensing channel are connected to the press pin through a wire.
Optionally, the capacitive electromagnetic touch module further includes a first substrate and a second substrate;
the first channel layer is disposed on the first substrate, and the second channel layer is disposed on the second substrate.
Optionally, a first groove is formed in the first substrate, and the first capacitive sensing channel and the first electromagnetic sensing channel are both disposed in the corresponding first groove;
and a second groove is formed in the second substrate, and the second capacitance induction channel and the second electromagnetic induction channel are arranged in the corresponding second groove.
In a second aspect, an embodiment of the present invention further provides a touch screen, including the capacitive electromagnetic touch module according to the first aspect of the present invention, further including a display module and a cover plate;
the capacitive electromagnetic touch module is arranged on the light emitting side of the display module;
the cover plate is arranged on one side, away from the display module, of the capacitive electromagnetic touch module.
In a third aspect, the utility model also provides an electronic device comprising a touch screen as provided in the second aspect of the utility model.
According to the embodiment of the utility model, the first capacitive sensing channel and the first electromagnetic sensing channel are arranged on the same layer, and the second capacitive sensing channel and the second electromagnetic sensing channel are arranged on the same layer, so that the original separated electromagnetic touch module and the capacitive touch module are fused together, the thickness of the whole machine can be reduced, the lightness and thinness can be realized, meanwhile, the production processes can be reduced, and the production cost can be reduced. In addition, a first electromagnetic channel group is arranged between two adjacent first capacitance induction channels, the first electromagnetic induction channels in different first electromagnetic channel groups are electrically connected through a lead, a second electromagnetic channel group is arranged between two adjacent second capacitance induction channels, and the second electromagnetic induction channels in different second electromagnetic channel groups are electrically connected through a lead, so that the flexibility of line connection is improved compared with the original direct grounding mode.
Drawings
The utility model is explained in more detail below with reference to the figures and examples.
Fig. 1 is a schematic structural diagram of a capacitive electromagnetic touch module according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a capacitive electromagnetic touch module according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of another capacitive electromagnetic touch module according to an embodiment of the utility model;
fig. 4 is a schematic structural diagram of a touch screen according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.
Fig. 1 is a schematic structural view of a capacitive electromagnetic touch module according to an embodiment of the present invention, and fig. 2 is a cross-sectional view of the capacitive electromagnetic touch module according to the embodiment of the present invention, as shown in fig. 1 and fig. 2, the capacitive electromagnetic touch module includes a first channel layer 110 and a second channel layer 120, the second channel layer 120 is disposed on the first channel layer 110, and the first channel layer 110 and the second channel layer 120 are isolated from each other.
The first channel layer 110 includes a plurality of first capacitive sensing channels 111 and a plurality of first electromagnetic sensing channels 112, and the first capacitive sensing channels 111 and the first electromagnetic sensing channels 112 are disposed in parallel and extend along a first direction X.
A first electromagnetic channel group is disposed between two adjacent first capacitive sensing channels 111, and the first electromagnetic channel group includes at least two first electromagnetic sensing channels 112, for example, as shown in fig. 1, the first electromagnetic channel group includes two first electromagnetic sensing channels 112, that is, two first electromagnetic sensing channels 112 are disposed between two adjacent first capacitive sensing channels 111. First electromagnetic induction channels 112 in different first electromagnetic channel groups are electrically connected by a conductive wire.
The second channel layer 120 includes a plurality of second capacitive sensing channels 121 and a plurality of second electromagnetic sensing channels 122, and the second capacitive sensing channels 121 and the second electromagnetic sensing channels 122 are disposed in parallel and extend along the second direction Y. Illustratively, in the present embodiment, the first line X and the second direction Y are perpendicular to each other.
A second electromagnetic channel group is disposed between two adjacent second capacitive sensing channels 121, and the second electromagnetic channel group includes at least two second electromagnetic sensing channels 122, for example, as shown in fig. 1, the second electromagnetic channel group includes two second electromagnetic sensing channels 122, that is, two second electromagnetic sensing channels 122 are disposed between two adjacent second capacitive sensing channels 121. Second electromagnetic induction paths 122 in different second electromagnetic path groups are electrically connected by conductive lines.
The first capacitive sensing channel 111 and the second capacitive sensing channel 121 cross to form a grid shape, and for example, the first capacitive sensing channel 111 may be a transmitting channel and the second capacitive sensing channel 121 may be a receiving channel. The capacitive drive scans the first capacitive sensing channel 111 line by line, applying an excitation signal to the first capacitive sensing channel 111. When one first capacitance sensing channel 111 is applied each time, all the second capacitance sensing channels 121 simultaneously complete sensing under the action of the excitation signal to generate a sensing signal, so that the capacitance value of the intersection point of all the first capacitance sensing channels 111 and the second capacitance sensing channels 121, that is, the capacitance value of the two-dimensional plane of the whole touch screen can be obtained. When a human finger approaches, the local capacitance is reduced, and the coordinate of each touch point can be calculated according to the capacitance variation data of the two-dimensional plane of the touch screen.
The first electromagnetic induction path 112 and the second electromagnetic induction path 122 intersect to form a grid-shaped antenna receiver. When the electromagnetic pen contacts the touch screen, signals sent by the electromagnetic pen are sensed by the grid-shaped antenna receiver to generate changes of magnetic flux, and the processor can analyze the changes of the magnetic flux and calculate the position and the pressure of a touch point of the electromagnetic pen.
According to the embodiment of the utility model, the first capacitive sensing channel and the first electromagnetic sensing channel are arranged on the same layer, and the second capacitive sensing channel and the second electromagnetic sensing channel are arranged on the same layer, so that the original separated electromagnetic touch module and the capacitive touch module are fused together, the thickness of the whole machine can be reduced, the lightness and thinness can be realized, meanwhile, the production processes can be reduced, and the production cost can be reduced. In addition, a first electromagnetic channel group is arranged between two adjacent first capacitance induction channels, the first electromagnetic induction channels in different first electromagnetic channel groups are electrically connected through a lead, a second electromagnetic channel group is arranged between two adjacent second capacitance induction channels, and the second electromagnetic induction channels in different second electromagnetic channel groups are electrically connected through a lead, so that the flexibility of line connection is improved compared with the original direct grounding mode.
In some embodiments of the present invention, at least one first capacitive sensing channel and at least two first electromagnetic sensing channels are disposed between two first electromagnetic sensing channels connected by a wire. At least one second capacitance induction channel and at least two second electromagnetic induction channels are arranged between the two second electromagnetic induction channels connected through the conducting wire. Illustratively, as shown in fig. 1, one or two first capacitive sensing channels 111 and two first electromagnetic sensing channels 112 are disposed between two first electromagnetic sensing channels 112 connected by a wire. A second capacitive sensing channel 121 and two second electromagnetic sensing channels 122 are disposed between the two second electromagnetic sensing channels 122 connected by a wire.
In some embodiments of the present invention, the conductive lines connecting the first electromagnetic induction channels 112 in different first electromagnetic channel groups are disposed in the FPC jumper 113. The conductive lines connecting the second electromagnetic induction channels 122 in different second electromagnetic channel groups are disposed in the FPC jumper 123. The first electromagnetic induction channel 112 is connected with the FPC by the FPC jumper, and the second electromagnetic induction channel 122 is connected with the FPC jumper, so that the problem that the size of a touch screen frame is increased due to the fact that a wiring space is reserved for a lead can be solved, and the size of the touch screen frame is reduced.
In some embodiments of the present invention, the capacitive electromagnetic touch module further includes a press pin, and the first capacitive sensing channel 111, the first electromagnetic sensing channel 112, the second capacitive sensing channel 121, and the second electromagnetic sensing channel 122 are led out through a wire and connected to the press pin. The pressfitting pin is used for connecting the circuit board, is provided with electric capacity drive and treater on the circuit board.
In some embodiments of the present invention, as shown in fig. 2, the capacitive electromagnetic touch module further includes a first substrate 130 and a second substrate 140, the first channel layer 110 is disposed on the first substrate 130, and the second channel layer 120 is disposed on the second substrate 140. Illustratively, the first substrate 130 and the second substrate 140 are both insulating materials with good light transmittance.
In some embodiments of the present invention, the first capacitive sensing via 111, the first electromagnetic sensing via 112, the second capacitive sensing via 121, the second electromagnetic sensing via 122, and the conductive lines may be made of one or more materials selected from indium tin oxide, nano silver, Al, Cu, and Mo, which are not limited herein.
On the basis of the above embodiment, in order to further reduce the thickness of the touch module and achieve the lightness and thinness of the touch screen, the first substrate is provided with a first groove, and the first capacitive sensing channel and the first electromagnetic sensing channel are both arranged in the corresponding first groove. The second substrate is provided with a second groove, and the second capacitance induction channel and the second electromagnetic induction channel are both arranged in the corresponding second grooves. Fig. 3 is a cross-sectional view of another capacitive electromagnetic touch module according to an embodiment of the present invention, for example, as shown in fig. 1 and fig. 3, in the above embodiment, a plurality of first grooves 131 extending along a first direction X are disposed on a first substrate 130, a first capacitive sensing channel 111 and a first electromagnetic sensing channel 112 are disposed in the corresponding first grooves 131, and a side surface of the first capacitive sensing channel 111 and a side surface of the first electromagnetic sensing channel 112 away from the first substrate 130 may be flush with a notch of the first groove 131. The second substrate 140 covers the first substrate 130, a plurality of second grooves 141 extending along the second direction Y are disposed on one side of the second substrate 140 away from the first substrate 130, the second capacitance sensing channel 121 and the second electromagnetic sensing channel 122 are disposed in the corresponding second grooves 141, and a side surface of the second capacitance sensing channel 121 and a side surface of the second electromagnetic sensing channel 122 away from the first substrate 130 may be flush with the notches of the second grooves 141. The first capacitive sensing path 111 and the first electromagnetic sensing path 112 may be formed in the first recess 131 by inkjet printing, and similarly, the second capacitive sensing path 121 and the second electromagnetic sensing path 122 may be formed in the second recess 141 by inkjet printing.
Fig. 4 is a schematic structural diagram of a touch screen according to an embodiment of the present invention, and as shown in fig. 4, the touch screen includes the capacitive electromagnetic touch module 100 according to any of the embodiments of the present invention, and further includes a display module 200 and a cover plate 300. The structure of the capacitive electromagnetic touch module 100 has been described in detail in the foregoing embodiments, and the embodiments of the present invention are not described herein again.
The capacitive electromagnetic touch module 100 is disposed on the light emitting side of the display module 200. The display module may be a liquid crystal display module, an LED display module, or an OLED display module, which is not limited herein.
The cover plate 300 is disposed on a side of the capacitive electromagnetic touch module 100 away from the display module 200. The cover plate 300 may be a glass cover plate having high light transmittance.
Of course, in the embodiment of the present invention, optical adhesives for adhesion may be further disposed between the capacitive electromagnetic touch module 100 and the display module 200, and between the capacitive electromagnetic touch module 100 and the cover plate 300, which is not described herein again.
The utility model further provides an electronic device comprising the touch screen provided by the previous embodiment of the utility model. For example, the electronic device may be a tablet computer, a tablet, a teaching whiteboard, and the like, and the embodiment of the present invention is not limited herein.
In the description herein, it is to be understood that the terms "upper", "lower", "left", "right", and the like are used in a descriptive sense or positional relationship based on the orientation or positional relationship shown in the drawings for convenience in description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. A capacitive electromagnetic touch module is characterized by comprising a first channel layer and a second channel layer, wherein the second channel layer is arranged on the first channel layer and is insulated and isolated from the first channel layer;
the first channel layer comprises a plurality of first capacitance induction channels and a plurality of first electromagnetic induction channels, and the first capacitance induction channels and the first electromagnetic induction channels are arranged in parallel and extend along a first direction;
a first electromagnetic channel group is arranged between two adjacent first capacitance induction channels, the first electromagnetic channel group comprises at least two first electromagnetic induction channels, and the first electromagnetic induction channels in different first electromagnetic channel groups are electrically connected through a lead;
the second channel layer comprises a plurality of second capacitance induction channels and a plurality of second electromagnetic induction channels, and the second capacitance induction channels and the second electromagnetic induction channels are arranged in parallel and extend along a second direction;
and a second electromagnetic channel group is arranged between every two adjacent second capacitive sensing channels and comprises at least two second electromagnetic sensing channels, and the second electromagnetic sensing channels in the different second electromagnetic channel groups are electrically connected through a lead.
2. The capacitive electromagnetic touch module according to claim 1, wherein at least one first capacitive sensing channel and at least two first electromagnetic sensing channels are disposed between two first electromagnetic sensing channels connected by a wire.
3. The capacitive electromagnetic touch module according to claim 1, wherein at least one second capacitive sensing channel and at least two second electromagnetic sensing channels are disposed between two second electromagnetic sensing channels connected by a wire.
4. The capacitive electromagnetic touch module according to any one of claims 1 to 3, wherein the conductive lines connecting the first electromagnetic induction channels in different first electromagnetic channel groups are FPC jumpers.
5. The capacitive electromagnetic touch module according to any one of claims 1 to 3, wherein the conductive lines connecting the second electromagnetic induction channels in different second electromagnetic channel groups are FPC jumpers.
6. The capacitive electromagnetic touch module according to claim 5, further comprising a press pin, wherein the first capacitive sensing channel, the first electromagnetic sensing channel, the second capacitive sensing channel, and the second electromagnetic sensing channel are connected to the press pin through a wire.
7. The capacitive electromagnetic touch module according to any one of claims 1-3 and 6, further comprising a first substrate and a second substrate;
the first channel layer is disposed on the first substrate, and the second channel layer is disposed on the second substrate.
8. The capacitive electromagnetic touch module according to claim 7, wherein the first substrate has a first groove formed therein, and the first capacitive sensing channel and the first electromagnetic sensing channel are disposed in the corresponding first groove;
and a second groove is formed in the second substrate, and the second capacitance induction channel and the second electromagnetic induction channel are arranged in the corresponding second groove.
9. A touch screen, comprising the capacitive electromagnetic touch module according to any one of claims 1 to 8, further comprising a display module and a cover plate;
the capacitive electromagnetic touch module is arranged on the light emitting side of the display module;
the cover plate is arranged on one side, away from the display module, of the capacitive electromagnetic touch module.
10. An electronic device characterized by comprising the touch screen according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122794889.3U CN216249201U (en) | 2021-11-15 | 2021-11-15 | Capacitive electromagnetic touch module, touch screen and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122794889.3U CN216249201U (en) | 2021-11-15 | 2021-11-15 | Capacitive electromagnetic touch module, touch screen and electronic equipment |
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| Publication Number | Publication Date |
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| CN216249201U true CN216249201U (en) | 2022-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122794889.3U Active CN216249201U (en) | 2021-11-15 | 2021-11-15 | Capacitive electromagnetic touch module, touch screen and electronic equipment |
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- 2021-11-15 CN CN202122794889.3U patent/CN216249201U/en active Active
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