Electromagnetic film, magnetic-capacitance integrated film and touch display device

Abstract

The utility model discloses an electromagnetic film, a magnetic-capacitance integrated film and a touch display device. The electromagnetic film comprises a first base material, a first metal wire array and a second metal wire array. The first base material comprises a first surface and a second surface which are oppositely arranged; the first metal wire array is arranged on the first surface and comprises a plurality of first metal wires which are arranged in parallel; the second metal wire array is arranged on the second surface and comprises a plurality of second metal wires arranged in parallel, and projections of the first metal wires and the second metal wires on the first surface or the second surface are arranged in a crossed mode. According to the utility model, the first metal wire array and the second metal wire array can be insulated directly through the first base material, so that the cross points of the first metal wires and the second metal wires do not need to be insulated, the manufacturing difficulty is reduced, the thickness of the product is obviously reduced, and the product accords with the trend of light and thin development.

Description

Technical Field

[0001] The utility model relates to the technical field of conductive films, and in particular to an electromagnetic film, a magnetic capacitance integrated film and a touch display device thereof. Background Art

[0002] The working principle of electromagnetic touch screen is to use an electromagnetic pen to transmit electromagnetic signals and interact with the electromagnetic film behind the display screen. When the electromagnetic pen is close to the touch screen, the electromagnetic film behind the LCD screen will sense the electromagnetic signal of the pen, causing the induction line under the electromagnetic film to change. The antenna (or electromagnetic induction line, metal wire, conductive wire, etc.) array in the horizontal and vertical directions receives the signal. The electromagnetic pen is the signal transmitter and the antenna array is the signal receiver. The X and Y coordinates of the pen are calculated through the change of magnetic flux. However, since the electromagnetic film is opaque, it can only be placed under the LCD screen. The combination of electromagnetic induction sensor and shielding film under the screen will lead to complex structure and high organizational cost.

[0003] In the prior art, the antenna array of the electromagnetic film is usually arranged on the same side of the substrate. For example, the Chinese utility model patent with application number 201820908127.7 discloses a direct-type backlight display module and display device, in which the electromagnetic induction lines are arranged on the backlight side of the transparent electromagnetic film. Since the electromagnetic induction lines are in a grid shape and the intersections of the electromagnetic induction lines need to be insulated, the manufacturing process is more complicated when the electromagnetic induction lines are arranged on the same surface.

[0004] Furthermore, due to the presence of the antenna array, the transmittance of the electromagnetic film in the prior art is low. When it is combined with a display screen, it will cause the picture quality to deteriorate and affect the viewing experience. In the above patent document, the problem of yellowing of the picture is reduced by setting a diffusion plate, an incremental film and a diffusion film, which increases the complexity of the structure and increases the cost.

[0005] Therefore, it is necessary to improve the prior art to overcome the above defects in the prior art. Utility Model Content

[0006] The utility model aims to provide an electromagnetic film and a touch display device thereof, which are helpful to reduce the manufacturing difficulty.

[0007] In the first aspect, in order to achieve the above-mentioned purpose of the utility model, the utility model proposes an electromagnetic film, comprising:

[0008] A first substrate comprises a first surface and a second surface arranged opposite to each other;

[0009] A first metal wire array is disposed on the first surface and includes a plurality of first metal wires arranged in parallel; and

[0010] The second metal wire array is arranged on the second surface and includes a plurality of second metal wires arranged in parallel. The projections of the first metal wire and the second metal wire on the first surface or the second surface are arranged crosswise.

[0011] Furthermore, the electromagnetic film is transparent, and the line width of the first metal line and the second metal line is 1.0-5.0 um.

[0012] Furthermore, the line width of the first metal line and the second metal line is 2.0-4.0 um.

[0013] Furthermore, the distance between two adjacent first metal wires ranges from 200 to 800 um;

[0014] The distance between two adjacent second metal wires ranges from 200 to 800 um.

[0015] Furthermore, an angle between projections of the first metal wire and the second metal wire on the first surface or the second surface is 45° to 135°.

[0016] Furthermore, the electromagnetic film also includes an electromagnetic power supply antenna, and the first surface and / or the second surface of the first substrate is provided with the electromagnetic power supply antenna, and the electromagnetic power supply antenna includes a power supply coil surrounding the first metal wire array and the second metal wire array.

[0017] Furthermore, the electromagnetic film also includes a second substrate and an electromagnetic power supply antenna arranged on the surface of the second substrate, and the electromagnetic power supply antenna includes a power supply coil surrounding the first metal wire array and the second metal wire array.

[0018] Further, the electromagnetic sensor includes a plurality of first receiving coils arranged in parallel and a plurality of second receiving coils arranged in parallel, the first receiving coil includes two of the first metal wires, and the second receiving coil includes two of the second metal wires;

[0019] The first substrate is made of a transparent material, and the first substrate is one of PET film, PC film, PI film, COP film, COC film, PEN film, TAC film, PC / PMMA composite film, or soda-lime glass or aluminosilicate glass.

[0020] Furthermore, the thickness of the first substrate is 10-100 um.

[0021] Furthermore, it also includes a protective film or a hardening coating located outside the first metal wire array and / or the second metal wire array.

[0022] In a second aspect, in order to achieve the above-mentioned purpose of the utility model, the utility model also proposes a magnetic-capacitive integrated film, including a capacitive touch sensor and the above-mentioned electromagnetic film.

[0023] Further, the capacitive touch sensor includes a metal mesh layer provided on the first surface and / or the second surface; or,

[0024] The capacitive touch sensor is attached to the electromagnetic film, and the capacitive touch sensor includes an insulating layer and a grid layer arranged on one side or both sides of the insulating layer.

[0025] In a third aspect, in order to achieve the above-mentioned purpose of the utility model, the utility model also proposes a touch display device, including the electromagnetic film described above.

[0026] Furthermore, the touch display device also includes a transparent capacitive screen connected to the electromagnetic film, the electromagnetic film is connected between the capacitive screen and the display screen; the electromagnetic film is bonded to the capacitive screen and the display screen respectively by optical glue; the electromagnetic film is located on the outer surface of the display screen.

[0027] Furthermore, the capacitive screen includes a cover plate and a capacitive touch sensor connected to the cover plate; the cover plate is bonded to the capacitive touch sensor by optical glue.

[0028] Furthermore, the cover plate is transparent glass, PMMA or a composite plate;

[0029] The capacitive touch sensor comprises an insulating layer and a grid layer located on one side or both sides of the insulating layer, wherein the material of the grid layer is ITO or metal;

[0030] The display screen is a liquid crystal display screen or an electronic ink screen.

[0031] Compared with the prior art, the utility model has the following beneficial effects: in the electromagnetic film of the utility model, the first metal wire array and the second metal wire array are respectively arranged on opposite sides of the same first substrate, and the first metal wire array and the second metal wire array can be directly insulated through the first substrate, so that the intersection of the first metal wire and the second metal wire does not need to be insulated, which is conducive to reducing the manufacturing difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a cross-sectional view of an electromagnetic film in one embodiment of the utility model;

[0033] Figure 2 It is a wiring diagram of a part of the electromagnetic film in one embodiment of the utility model;

[0034] Figure 3It is a wiring diagram of a part of the electromagnetic film of another embodiment of the utility model;

[0035] Figure 4 It is a layout diagram of the first receiving coil and the second receiving coil in one embodiment of the utility model.

[0036] Figure 5 It is a schematic diagram of the position of an electromagnetic power supply antenna in an embodiment of the utility model.

[0037] Figure 6 It is a cross-sectional view of an electromagnetic film of an embodiment of the utility model, showing a second substrate and an electromagnetic power supply antenna;

[0038] Figure 7 It is a cross-sectional view of an electromagnetic film of another embodiment of the utility model;

[0039] Figure 8 It is a cross-sectional view of an electromagnetic film of another embodiment of the utility model;

[0040] Fig. 9 It is a cross-sectional view of a magnetic-capacitive integrated film according to an embodiment of the present utility model;

[0041] Fig.10 yes Fig. 9 A cross-sectional view of a capacitive touch sensor shown in FIG.

[0042] Fig.11 It is a schematic diagram of the positions of a partial first metal grid layer and a first metal wire array in an embodiment of the utility model.

[0043] Fig.12 It is a schematic diagram of the position of a partial second metal grid layer and a second metal wire array in an embodiment of the utility model.

[0044] Fig.13 It is a cross-sectional view of a touch display device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0046] The terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0047] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0048] like Figures 1 to 3 As shown, an electromagnetic film 100 corresponding to a preferred embodiment of the present utility model includes a first substrate 1, a first metal wire array 2 and a second metal wire array 3.

[0049] The first substrate 1 includes a first surface 101 and a second surface 102 that are opposite to each other.

[0050] The first metal wire array 2 is disposed on the first surface 101 and includes a plurality of first metal wires 201 arranged in parallel.

[0051] The second metal wire array 3 is arranged on the second surface 102, including a plurality of second metal wires 301 arranged in parallel. The projections of the first metal wires 201 and the second metal wires 301 on the first surface 101 or the second surface 102 are cross-arranged, and the projections of the two on the same surface of the first substrate 1 are cross-shaped in a grid shape.

[0052] The first metal wire array 2 is arranged on the first surface 101 of the first substrate 1, and the second metal wire array 3 is arranged on the second surface 102 of the first substrate 1. Similarly, the positions of the first metal wire array 2 and the second metal wire array 3 can be exchanged, that is, the first metal wire array 2 is arranged on the second surface 102 of the first substrate 1, and the second metal wire array 3 is arranged on the first surface 101 of the first substrate 1, which is not limited here. Since the first metal wire array 2 and the second metal wire array 3 are respectively arranged on the opposite sides of the first substrate 1, the first metal wire array 2 and the second metal wire array 3 can be directly insulated through the first substrate 1 to achieve an insulation effect, and there is no need to perform additional insulation treatment on the intersection of the first metal wire 201 and the second metal wire 301, which is conducive to reducing the manufacturing difficulty; at the same time, since the first metal wire array 2 and the second metal wire array 3 are arranged on the same first substrate 1, the thickness of the electromagnetic film 100 is effectively reduced, and the electromagnetic film is thinner and lighter. When the first substrate 1 is made of transparent material, the electromagnetic film can obtain better light transmittance.

[0053] The first metal wire array and the second metal wire array can be prepared using existing processes, such as coating, exposing, developing, copperizing, blackening, PMMA and other processes on the surface of the first substrate 1 to obtain a metal wire array. The reflectivity can be reduced by blackening.

[0054] The first metal wire 201 and the second metal wire 301 are part of the receiving coil. Figure 4 As shown, the electromagnetic film includes a plurality of first receiving coils 2a arranged in parallel and a plurality of second receiving coils 3a arranged in parallel. The arrangement directions of the first receiving coils 2a and the second receiving coils 3a intersect with each other and are respectively located on the first surface 101 and the second surface 102 of the first substrate 1. The first receiving coil 2a includes two first metal wires 201, and the second receiving coil 3a includes two second metal wires 301. Therefore, the arrangement direction of the first receiving coil 2a is consistent with the arrangement direction of the first metal wires 201, and the arrangement direction of the second receiving coil 3a is consistent with the arrangement direction of the second metal wires 301. Optionally, two adjacent first receiving coils 2a are arranged at intervals and do not intersect with each other, and two adjacent second receiving coils 3a are arranged at intervals and do not intersect with each other.

[0055] As a preferred embodiment, the electromagnetic film 100 is transparent, and the line width of the first metal wire 201 and the second metal wire 301 is 1.0-5.0um, which is invisible to the naked eye, and can effectively improve the transmittance of the electromagnetic film. Optionally, the line width of the first metal wire 201 and the second metal wire 301 is 2.0-4.0um. The first metal wire 201 and the second metal wire 301 are set to a line width of 2.0-4.0um. The transmittance of the electromagnetic film 100 formed after wiring on the first substrate 1 can reach more than 88%. When it is combined with a display screen, it is beneficial to improve the picture quality and ensure the viewing experience. Further optionally, the first metal wire 201 and the second metal wire 301 are set to a line width of 2.5-4um.

[0056] like Figure 2 and Figure 3 As shown, the distance W1 between two adjacent first metal wires 201 ranges from 200 to 800 um; the distance W2 between two adjacent second metal wires 301 ranges from 200 to 800 um. On the one hand, the reliability and sensitivity of the electromagnetic induction of the electromagnetic film 100 can be improved, and on the other hand, the light transmittance can be guaranteed. Optionally, the angle α between the first metal wire 201 and the second metal wire 301 is 45 to 135°. In some embodiments, as Figure 2 As shown, the first metal wires 201 and the second metal wires 301 are arranged in a staggered manner in a square shape, and the angle between the projections of the first metal wires 201 and the second metal wires 301 on the first surface 101 or the second surface 102 is 90°; in other embodiments, such as Figure 3 As shown, the angle between the first metal wire 201 and the second metal wire 301 is less than 90°, and the first metal wire 201 and the second metal wire 301 are staggered in a diamond shape. Of course, they can also be designed into other shapes as needed, which is not limited here.

[0057] The first substrate 1 is made of a transparent material, and is one of PET film, PC film, PI film, COP film, COC film, PEN film, TAC film, PC / PMMA composite film, or soda-lime glass or aluminosilicate glass. Preferably, the thickness D of the first substrate 1 is 10-100 um, so that the first substrate 1 has good light transmittance, and the prepared electromagnetic film 100 is flexible and can be bent.

[0058] In some embodiments, Figure 5 As shown, the electromagnetic film also includes an electromagnetic power supply antenna 9, and the electromagnetic power supply antenna 9 includes at least one power supply coil. Figure 5Three power supply coils are shown in the figure. When the power supply coil has multiple turns, it is preferred that they are concentrically arranged. The electromagnetic power supply antenna 9 is used to power the passive electromagnetic pen. The first substrate 1 can be provided with an electromagnetic power supply antenna 9 only on its first surface 101 or the second surface 102, or can be provided with an electromagnetic power supply antenna 9 on both surfaces. For example, part of the power supply coil is provided on the first surface 101, and part is provided on the second surface 102. The power supply coil of the electromagnetic power supply antenna 9 surrounds the outside of the first metal wire array 2 and the second metal wire array 3.

[0059] In some embodiments, Figure 6 As shown, the electromagnetic film also includes a second substrate 90 and an electromagnetic power supply antenna 9 arranged on the surface of the second substrate 90. The electromagnetic power supply antenna 9 can be arranged on the upper surface and / or the lower surface of the second substrate 90. The electromagnetic power supply antenna 9 includes at least one circle of power supply coil. When the power supply coil has multiple circles, it is preferably concentrically arranged. The electromagnetic power supply antenna 9 is used to power the passive electromagnetic pen. The power supply coil of the electromagnetic power supply antenna surrounds the outside of the first metal wire array 2 and the second metal wire array 3. The second substrate 90 and the electromagnetic power supply antenna 9 can be directly attached to the first substrate 1 and the metal wire array, or other layers can be arranged between the two.

[0060] The electromagnetic film 100 further includes a protective film 4 or a hardening coating 5, which is located on the outside of the electromagnetic film 100, and the first metal wire array 2 and / or the second metal wire array 3 are located between the first substrate 1 and the protective film 4 or the hardening coating 5. Specifically, when the electromagnetic film 100 has only one layer of protective film 4 or hardening coating 5, the protective film 4 or the hardening coating 5 can be located on the outside of the first metal wire array 2 or the second metal wire array 3, and when it has two layers of protective film 4 or hardening coating 5, the two layers of protective film 4 or hardening coating 5 can be located on the outside of the first metal wire array 2 or the second metal wire array 3, respectively. The protective film 4 and the hardening coating 5 can be directly attached to the first metal wire array 2 and / or the second metal wire array 3, or other layers can be provided therein, such as a second substrate 90 and an electromagnetic power supply antenna 9.

[0061] The protective film 4 or the hardening coating 5 is arranged on the outside of the electromagnetic film 100 to prevent damage to the first metal wire array 2 and / or the second metal wire array 3, ensure the quality of the electromagnetic film 100, and facilitate the independent use of the electromagnetic film 100. The material of the protective film 4 can be, for example, a PET film, a PE film, a PI film, etc.; the material of the hardening coating 5 can be, for example, a modified acrylic resin system coating liquid, a polyurethane system coating liquid, etc. In some embodiments, Figure 7 As shown, the first metal wire array 2 and the second metal wire array 3 are both bonded and connected to the protective film 4; in other embodiments, such as Figure 8As shown, the first metal wire array 2 and the protective film 4 are bonded together, and the second metal wire array 3 and the hardening coating layer 5 are bonded together.

[0062] When an electromagnetic pen is used to write on the surface of the electromagnetic film 100, the metal wire array will generate electromagnetic induction, and the X and Y coordinate positions of the pen can be calculated through the changes in magnetic flux at different locations.

[0063] like Fig. 9 As shown, the utility model further proposes a magnetic-capacitive integrated film, including a capacitive touch sensor 6 and the above-mentioned electromagnetic film 100 .

[0064] In some embodiments, the capacitive touch sensor 6 and the electromagnetic film 100 are bonded together. Preferably, the electromagnetic film 100 is bonded to the capacitive touch sensor 6 by an optical adhesive 400. Optionally, the capacitive touch sensor 6 is transparent and can perform capacitive sensing. When a finger touches the magnetic-capacitive integrated film, the capacitive touch sensor 6 will generate a change in capacitance, thereby sensing the touch of the finger. In this way, the magnetic-capacitive integrated film can not only sense the touch of the electromagnetic pen through the electromagnetic film, but also sense the touch of the finger through capacitive sensing, and the function is more comprehensive.

[0065] The capacitive touch sensor 6 may be attached to the first metal wire array 2 or the second metal wire array 3 , and a protective film 4 or a hardening coating 5 or a transparent cover plate 7 may be further provided on the surface of the capacitive touch sensor 6 .

[0066] The magnetic-capacitive integrated film has both inductive capacitance and electromagnetic functions, and both capacitance and electromagnetic functions are realized on the same film. The product thickness is significantly thinner, and it has the advantages of being more convenient to use, low cost and easy to implement.

[0067] Optionally, the capacitive touch sensor 6 includes an insulating layer 60 and a grid layer 61 arranged on one side or both sides of the insulating layer 60 , wherein the material of the grid layer 61 is ITO or metal (such as copper, silver or gold), and the change of capacitance is sensed by the grid layer 61 . Fig.10 In the illustrated embodiment, mesh layers 61 are provided on both side surfaces of the insulating layer 60 .

[0068] In some other embodiments, the electromagnetic touch sensor 6 includes a metal mesh layer disposed on the first surface 101 and / or the second surface 102 , and the change of capacitance is sensed by the metal mesh layer. Fig.11 A schematic diagram showing the positions of the first metal grid layer 62 and the first metal wire array 2 disposed on a local first surface 101 in an embodiment is shown. Fig.12 A schematic diagram showing the positions of the second metal grid layer 63 and the second metal wire array 3 disposed on the local second surface 102 is shown, and Fig.12 The portion shown is located at Fig.11In the same viewing direction, the first metal wire array 2 and the second metal wire array 3 are U-shaped and vertically arranged, and the first metal grid layer 62 and the second metal grid layer 63 are respectively located in the openings of the first metal wire array 2 and the second metal wire array 3. It can be understood that Fig.11 and Fig.12 The parts shown may be distributed on the first substrate 1 in an array manner.

[0069] Furthermore, the present invention also provides a touch display device, comprising the electromagnetic film 100 mentioned above.

[0070] In some embodiments, the electromagnetic film 100 is transparent, such as Fig.13 As shown, the touch display device further includes a display screen 300 connected to the electromagnetic film 100. The electromagnetic film 100 is connected to the outer surface of the display screen 300. Optionally, the touch display device further includes a transparent capacitive screen 200, and the electromagnetic film 100 is connected between the capacitive screen 200 and the display screen 300; the electromagnetic film 100 is bonded to the capacitive screen 200 and the display screen 300 respectively through optical glue 400.

[0071] Since both the electromagnetic film 100 and the capacitive screen 200 have good light transmittance, the electromagnetic film 100 and the capacitive screen 200 can be located on the outer surface of the display screen 300 .

[0072] Since the electromagnetic film 100 is connected between the capacitive screen 200 and the display screen 300 and is located on the outside of the display screen 300, there is no need to disassemble the bottom frame of the display screen and embed it into the bottom of the display screen. The overall structure is simpler, which greatly reduces the difficulty of assembly. In addition, when in use, the electromagnetic pen that matches the touch display device is closer to the electromagnetic film 100, the electromagnetic induction is better, and the electromagnetic touch effect is better.

[0073] The capacitive screen 200 includes a cover plate 7 and a capacitive touch sensor 6 connected to the cover plate 7 ; the cover plate 7 is bonded to the capacitive touch sensor 6 by optical adhesive 400 .

[0074] Optionally, the capacitive touch sensor 6 includes an insulating layer 60 and a grid layer 61 arranged on one side or both sides of the insulating layer 60 , wherein the material of the grid layer 61 is ITO or metal (such as copper, silver or gold), and the change of capacitance is sensed by the grid layer 61 .

[0075] Optionally, the cover plate 7 is made of a transparent material, such as transparent glass, PMMA or a composite board; the display screen 300 is a liquid crystal display screen or an electronic ink screen, and the liquid crystal display screen is, for example, a cholesterol liquid crystal display screen or a fully reflective liquid crystal display screen.

[0076] It is understandable that the electromagnetic film 100 may also be disposed at other locations, for example, may be disposed inside the display screen 300 , and may be located on both sides of the display screen 300 with the capacitive screen 200 .

[0077] The above are only specific implementations of the present invention, and any improvements made based on the concept of the present invention are considered to be within the protection scope of the present invention.

Claims

1. An electromagnetic film, characterized in that: include: A first substrate includes a first surface and a second surface disposed opposite to each other; A first metal wire array, disposed on the first surface, comprising a plurality of first metal wires arranged in parallel; as well as, A second metal wire array is provided on the second surface, comprising a plurality of second metal wires arranged in parallel, wherein projections of the first metal wires and the second metal wires on the first surface or the second surface are arranged crosswise; The electromagnetic film further includes an electromagnetic power supply antenna, and the electromagnetic power supply antenna includes a power supply coil surrounding the first metal wire array and the second metal wire array.

2. The electromagnetic film according to claim 1, characterized in that The electromagnetic film is transparent, and the line width of the first metal line and the second metal line is 1.0-5.0 um.

3. The electromagnetic film according to claim 2, characterized in that The line width of the first metal line and the second metal line is 2.0-4.0 um.

4. The electromagnetic film according to claim 3, characterized in that The distance between two adjacent first metal wires ranges from 200 to 800 um; The distance between two adjacent second metal wires ranges from 200 to 800 um.

5. The electromagnetic film according to claim 4, characterized in that An angle between projections of the first metal wire and the second metal wire on the first surface or the second surface is 45-135°.

6. The electromagnetic film according to claim 1, characterized in that The electromagnetic powered antenna is disposed on the first surface and / or the second surface of the first substrate.

7. The electromagnetic film according to claim 1, characterized in that The electromagnetic film also includes a second substrate, and the electromagnetic power supply antenna is arranged on the surface of the second substrate.

8. The electromagnetic film according to claim 1, characterized in that The electromagnetic film comprises a plurality of first receiving coils arranged in parallel and a plurality of second receiving coils arranged in parallel, the first receiving coil comprises two first metal wires, and the second receiving coil comprises two second metal wires; The first substrate is made of a transparent material, and the first substrate is one of PET film, PC film, PI film, COP film, COC film, PEN film, TAC film, PC / PMMA composite film, or soda-lime glass or aluminosilicate glass.

9. The electromagnetic film according to claim 8, characterized in that The thickness of the first substrate is 10-100 um.

10. The electromagnetic film according to any one of claims 1 to 9, characterized in that It also includes a protective film or a hardening coating, and the first metal wire array and / or the second metal wire array is located between the first substrate and the protective film or the hardening coating.

11. A magnetic and capacitance integrated film, characterized in that: The invention comprises a capacitive touch sensor and the electromagnetic film as claimed in any one of claims 1 to 10.

12. The magnetic-capacitive integrated film according to claim 11, characterized in that: The capacitive touch sensor includes a metal mesh layer disposed on the first surface and / or the second surface; or, The capacitive touch sensor is attached to the electromagnetic film, and the capacitive touch sensor comprises an insulating layer and a grid layer arranged on one side or both sides of the insulating layer, wherein the material of the grid layer is ITO or metal.

13. A touch display device, comprising the electromagnetic film according to any one of claims 2 to 10.

14. The touch display device according to claim 13, wherein: The touch display device comprises a display screen connected to the electromagnetic film, and the electromagnetic film is located on the outer surface of the display screen; The touch display device also includes a transparent capacitive screen, and the electromagnetic film is connected between the capacitive screen and the display screen; the electromagnetic film is bonded to the capacitive screen and the display screen respectively through optical glue.

15. The touch display device according to claim 14, wherein: The capacitive screen comprises a cover plate and a capacitive touch sensor connected to the cover plate; the cover plate is bonded to the capacitive touch sensor by optical glue.

16. The touch display device according to claim 15, wherein: The cover plate is transparent glass, PMMA or a composite plate; The capacitive touch sensor comprises an insulating layer and a grid layer located on one side or both sides of the insulating layer, wherein the material of the grid layer is ITO or metal; The display screen is a liquid crystal display screen or an electronic ink screen.

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