CN214474935U - Electromagnetic interference resistance structural slab and touch module - Google Patents
Electromagnetic interference resistance structural slab and touch module Download PDFInfo
- Publication number
- CN214474935U CN214474935U CN202120434494.XU CN202120434494U CN214474935U CN 214474935 U CN214474935 U CN 214474935U CN 202120434494 U CN202120434494 U CN 202120434494U CN 214474935 U CN214474935 U CN 214474935U
- Authority
- CN
- China
- Prior art keywords
- layer
- transparent substrate
- electromagnetic interference
- coating
- panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The utility model relates to an electromagnetic interference resistance structural slab and touch module. The transparent substrate mainly comprises a transparent substrate, the transparent substrate comprises two surfaces, at least one surface of the transparent substrate is provided with a composite layer, the composite layer comprises an anti-electromagnetic interference layer and a rough surface layer, the anti-electromagnetic interference layer is connected with the surface of the transparent substrate, the rough surface layer is connected with the anti-electromagnetic interference layer, and when only one surface of the transparent substrate is provided with the composite layer, the other surface of the transparent substrate is provided with the rough surface layer. The structural plate has excellent electromagnetic interference resistance and transparency, low haze, high definition, scratch resistance, no water ripple and other problems.
Description
Technical Field
The utility model relates to a panel technical field especially relates to electromagnetic interference resistance structural slab and touch module.
Background
With the coming of the information era, the traditional blackboard teaching cannot keep pace with the modern education, and the intelligent blackboard is used for replacing the traditional blackboard for teaching. However, in such large-sized interactive devices, electromagnetic interference (EMI) of a Liquid Crystal Display (LCD) on a touch film seriously affects the use effect and experience.
Electromagnetic interference is interference generated to a circuit by an external source through electromagnetic induction, electrostatic coupling, or conduction. In a typical lcd panel architecture, the liquid crystal material is biased by transparent upper and lower electrodes, and the ac common voltage frequency of a typical portable device may be 15 kHz. In order to reduce the construction cost and obtain better transparency of large-sized electronic interaction equipment, a single-layer touch screen structure is often used, so that serious electromagnetic interference coupling condition can occur between the liquid crystal screen and the touch screen.
SUMMERY OF THE UTILITY MODEL
Therefore, the electromagnetic interference preventing structural plate is provided. The electromagnetic interference prevention structure plate can effectively prevent the electromagnetic interference of the liquid crystal screen to the touch screen and can also prevent the generation of Newton's rings.
The utility model provides an electromagnetic interference resistance structural slab, includes transparent substrate, transparent substrate includes two surfaces, at least one surface of transparent substrate is provided with the composite bed, the composite bed includes electromagnetic interference resistance layer and coarse superficial layer, electromagnetic interference resistance layer links to each other with transparent substrate's surface, coarse superficial layer with electromagnetic interference resistance layer links to each other, and, when only a surface of transparent substrate was provided with the composite bed, another surface of transparent substrate was provided with coarse superficial layer.
The structural plate is provided with the electromagnetic interference prevention layer, so that after the structural plate is placed between the touch unit and the display unit, the electromagnetic interference of the display unit to the touch unit can be effectively prevented. And because the rough surface layers are arranged on the two sides of the structural plate, the phenomenon of Newton rings (water ripples) can not occur after the structural plate is tightly contacted with the display unit and the touch unit.
In one embodiment, the rough surface layer is an antiglare layer or an abrasion resistant rough surface layer.
In one embodiment, the haze of the anti-glare layer is 5% -15%, the linear roughness of the anti-glare layer is 0.2-0.5 micrometers, and the 60-degree glossiness of the anti-glare layer is 50-70 GU.
In one embodiment, both surfaces of the transparent substrate are provided with the composite layer.
In one embodiment, the rough surface layer is a coating structure or a film structure.
In one embodiment, the shielding effectiveness of the EMI shielding layer is greater than or equal to 30 dB.
In one embodiment, the electromagnetic interference prevention layer is a silver nanowire coating, the wire diameter of the silver nanowire is 11-18 nm, the surface resistance of the silver nanowire coating is 10-80 omega/□, and the haze is 0.5-3.0%;
or the anti-electromagnetic interference layer is a polythiophene coating, the light transmittance of the polythiophene coating is more than 96%, and the surface resistance of the polythiophene coating is less than or equal to 1.0 multiplied by 105Ω/sq；
Or the anti-electromagnetic interference layer is a carbon nano tube coating, the carbon nano tube coating is a single-walled carbon nano tube, the G/D ratio of the Raman spectrum of the carbon nano tube coating is 70-100, the light transmittance of the carbon nano tube coating is more than 97%, and the surface resistance of the carbon nano tube coating is less than or equal to 1.0 multiplied by 105Ω/sq。
In one embodiment, the electromagnetic interference preventing layer is a coating structure or a film structure.
In one embodiment, the transparent substrate has a light transmittance of > 88%, and the appearance standard of the transparent substrate is optical grade.
In one embodiment, the transparent substrate is a polycarbonate plate, a polymethyl methacrylate plate or a polycarbonate/polymethyl methacrylate composite plate, and the thickness of the transparent substrate is 0.5-5 mm.
A touch module comprises a touch unit, a display unit and an electromagnetic interference prevention structural plate, wherein the electromagnetic interference prevention structural plate is arranged between the touch unit and the display unit.
Drawings
Fig. 1 is a schematic view of an embodiment of an emi shielding structure board according to the present invention.
Fig. 2 is a schematic view of another embodiment of an emi shielding structural board according to an embodiment of the present invention.
Fig. 3 is a schematic view of an emi structure board according to an embodiment of the present invention disposed between a touch unit and a display unit.
Wherein:
100. electromagnetic interference prevention structure plate 110, transparent substrate 120, and electromagnetic interference prevention layer
130. Rough surface layer
200. A touch unit 300 and a display unit.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 1 and fig. 2, an embodiment of the present invention provides an emi structured board 100, which includes a transparent substrate 110, the transparent substrate 110 includes two surfaces, at least one surface of the transparent substrate 110 is provided with a composite layer, the composite layer includes an emi layer 120 and a rough surface layer 130, the emi layer 120 is connected to the surface of the transparent substrate 110, the rough surface layer 130 is connected to the emi layer 120, and when only one surface of the transparent substrate 110 is provided with the composite layer, the other surface of the transparent substrate 110 is provided with the rough surface layer 130.
As shown in fig. 3, the electromagnetic interference shielding structure panel 100 of the present application can be applied to a touch module. Specifically, a typical touch module includes a touch unit 200 and a display unit 300. The emi shielding structural plate 100 may be disposed between the touch unit 200 and the display unit 300. The emi shielding structure board 100 is respectively contacted with or adhered to the touch unit 200 and the display unit 300.
Specifically, the touch unit 200 may include two support plates and a touch film disposed on the support plates, and the two support plates may encapsulate the touch film. Or, only one backup pad is provided with the touch-control membrane in the backup pad, and the touch-control membrane contacts with the structural slab of this application.
Specifically, the display unit 300 may be a unit having a display function, such as an LCD screen, an LED screen, or an OLED screen.
As shown in fig. 1 and fig. 2, in the present application, when the transparent substrate 110 is specifically configured, a composite layer may be disposed on one surface of the transparent substrate 110, and a rough surface layer 130 is disposed on the other surface, that is, one side of the transparent substrate 110 has an emi shielding layer 120, and both sides of the transparent substrate 110 are disposed with the rough surface layer 130.
It is understood that both surfaces of the transparent substrate 110 may be provided with the composite layer. That is, the emi shielding layers 120 are respectively disposed on both sides of the transparent substrate 110, and the outer surface of each emi shielding layer 120 is provided with the rough surface layer 130.
In this embodiment, the rough surface layer 130 is an anti-glare layer. The antiglare layer is a structure having a rough surface. It is understood that the rough surface of the present application can be other types of rough surfaces as well.
In this embodiment, the rough surface layer 130 may have a certain wear resistance, and specifically, may be a surface layer that is not scratched when being rubbed with #0000 steel wool for more than 500 times by applying 1kg force.
In the embodiment, the haze of the anti-glare layer is 5% -15%, the linear roughness of the anti-glare layer is 0.2-0.5 um, and the 60-degree glossiness of the anti-glare layer is 50-70 GU.
Specifically, the anti-glare layer can be a coating, the coating comprises macromolecules formed by crosslinking one or more of polyurethane acrylate, polyester acrylic acid and epoxy acrylate, 1-3 micron anti-glare particles are embedded in the coating, and the anti-glare coating is obtained by UV (ultraviolet) light curing.
In this embodiment, the rough surface layer 130 is a coating structure or a film structure. That is, the rough surface layer 130 may be disposed on the surface of the emi shielding layer 120 or the surface of the transparent substrate 110 by coating. Or the manufactured film with the rough surface may be directly attached to the surface of the emi shielding layer 120 or the surface of the transparent substrate 110.
In this embodiment, the emi shielding layer 120 is a coating structure or a film structure. That is, the emi shielding layer 120 may be disposed on the surface of the transparent substrate 110 by coating. Or the manufactured emi shielding film may be directly attached to the surface of the transparent substrate 110.
In this embodiment, the shielding effectiveness of the EMI shielding layer 120 is greater than or equal to 30 dB. The electromagnetic interference preventing coating can be prepared from the following materials: one or a mixture of several of silver nanowires, carbon nanotubes, graphene, ITO, TCO, polythiophene, etc., but not limited thereto. Meanwhile, the anti-electromagnetic interference coating contains adhesive resin with the content of 10-30%. Further, the adhesive resin is one of acrylate and polyurethane.
For example, the surfaces of the carbon nanotubes and the graphene may be modified with nanoparticles such as ferroferric oxide and cobalt oxide, so as to fabricate the emi shielding layer 120.
For example, the EMI preventing layer 120 is a silver nanowire coating, the wire diameter of the silver nanowire is 11-18 nm, the surface resistance of the silver nanowire coating is 10-80 Ω/□, and the haze is 0.5-3.0%.
For example, the emi shielding layer 120 is a polythiophene coating having a transmittance of more than 96%, and a surface resistance of 1.0 × 10 or less5Ω/sq。
For example, the electromagnetic interference prevention layer 120 is a carbon nanotube coating, the carbon nanotube coating is a single-walled carbon nanotube, the G/D ratio of the raman spectrum of the carbon nanotube coating is 70 to 100, the light transmittance of the carbon nanotube coating is more than 97%, and the surface resistance of the carbon nanotube coating is less than or equal to 1.0 × 105Ω/sq。
In this embodiment, the transmittance of the transparent substrate 110 is greater than 88%, and the appearance standard of the transparent substrate 110 is optical grade.
In this embodiment, the transparent substrate 110 is a polycarbonate Plate (PC), a polymethyl methacrylate Plate (PMMA) or a polycarbonate/polymethyl methacrylate composite plate (PC/PMMA), and the thickness of the transparent substrate 110 is 0.5 to 5 mm. Preferably 0.6 to 1.5 mm.
The present application further provides a method for manufacturing the electromagnetic interference prevention structural plate 100:
step 1, vertically hanging a transparent substrate 110 on a track, and removing surface dust through electrostatic dust removal;
step 2, spraying an electromagnetic interference preventing coating on one side or two sides of the transparent substrate 110 from top to bottom, and baking at 60 ℃ for 1-3 min until the coating is completely dried;
step 3, spraying the anti-glare light-cured coating on the two sides of the transparent substrate 110 from top to bottom, baking at 50-70 ℃ for 2-4 min, and performing UV curing to obtain an anti-glare hardened coating;
and 4, taking down the plate on the track, flatly placing the plate on a film laminating machine, and coating the protective film on the two sides of the plate.
The electromagnetic interference resistance structural slab 100 has excellent electromagnetic interference resistance performance and transparency, has an anti-glare coating with a rough surface, has the characteristics of low haze, high definition, scratch resistance and the like, ensures the display effect, and has no appearance defects such as water ripples when the structural slab is used for seamless contact between an LCD and a touch screen. Meanwhile, the manufacturing method of the electromagnetic interference prevention structural plate 100 provided by the application is simple in process and easy to realize large-scale production.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides an electromagnetic interference resistance structural slab, includes transparent substrate, its characterized in that, transparent substrate includes two surfaces, at least one surface of transparent substrate is provided with the composite bed, the composite bed includes electromagnetic interference resistance layer and coarse superficial layer, electromagnetic interference resistance layer links to each other with transparent substrate's surface, coarse superficial layer with electromagnetic interference resistance layer links to each other, and, when only a surface of transparent substrate was provided with the composite bed, another surface of transparent substrate was provided with coarse superficial layer.
2. The electromagnetic interference preventing structure board as recited in claim 1, wherein the rough surface layer is an anti-glare layer or an abrasion-resistant rough surface layer.
3. The electromagnetic interference prevention structural plate as recited in claim 2, wherein the anti-glare layer has a haze of 5% to 15%, a linear roughness of 0.2 to 0.5 μm, and a 60 ° gloss of 50 to 70 GU.
4. The structural panel of claim 1, wherein the composite layer is disposed on both surfaces of the transparent substrate.
5. The structural panel of claim 1, wherein the rough surface layer is a coating structure or a film structure, and the EMI layer is a coating structure or a film structure.
6. The structural panel of any of claims 1 to 5, wherein the shielding effectiveness of the EMI shielding layer is greater than or equal to 30 dB.
7. The structural board of claim 6, wherein the EMI preventing layer is a silver nanowire coating layer, the wire diameter of the silver nanowire is 11-18 nm, the surface resistance of the silver nanowire coating layer is 10-80 Ω/sq, and the haze is 0.5-3.0%;
or the anti-electromagnetic interference layer is a polythiophene coating, the light transmittance of the polythiophene coating is more than 96%, and the surface resistance of the polythiophene coating is less than or equal to 1.0 multiplied by 105Ω/sq；
Or the anti-electromagnetic interference layer is a carbon nano tube coating, the carbon nano tube coating is a single-walled carbon nano tube, the G/D ratio of the Raman spectrum of the carbon nano tube coating is 70-100, the light transmittance of the carbon nano tube coating is more than 97%, and the surface resistance of the carbon nano tube coating is less than or equal to 1.0 multiplied by 105Ω/sq。
8. The structural panel of claim 1, wherein the transparent substrate has a transmittance of > 88%, and the appearance standard of the transparent substrate is optical grade.
9. The structural panel of claim 1, wherein the transparent substrate is a polycarbonate panel, a polymethyl methacrylate panel or a polycarbonate/polymethyl methacrylate composite panel, and the thickness of the transparent substrate is 0.5-5 mm.
10. A touch module comprising a touch unit and a display unit, and further comprising the emi structure panel according to any one of claims 1 to 8, wherein the emi structure panel is disposed between the touch unit and the display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120434494.XU CN214474935U (en) | 2021-02-26 | 2021-02-26 | Electromagnetic interference resistance structural slab and touch module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120434494.XU CN214474935U (en) | 2021-02-26 | 2021-02-26 | Electromagnetic interference resistance structural slab and touch module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214474935U true CN214474935U (en) | 2021-10-22 |
Family
ID=78146695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120434494.XU Active CN214474935U (en) | 2021-02-26 | 2021-02-26 | Electromagnetic interference resistance structural slab and touch module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214474935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114281215A (en) * | 2021-12-28 | 2022-04-05 | 安徽辅朗光学材料有限公司 | Touch panel, touch module and preparation process |
-
2021
- 2021-02-26 CN CN202120434494.XU patent/CN214474935U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114281215A (en) * | 2021-12-28 | 2022-04-05 | 安徽辅朗光学材料有限公司 | Touch panel, touch module and preparation process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2011142935A4 (en) | Methods and apparatus for a transparent and flexible force-sensitive touch panel | |
| KR20080021148A (en) | Transparent conductive film, electrode sheet for use in touch panel, and touch panel | |
| TW201439841A (en) | Touch screen | |
| CN102024508B (en) | Conducting plate structure | |
| CN203894715U (en) | Flexible touch screen and touch device | |
| CN111690332B (en) | High-definition hydrophobic screen protective film and application thereof | |
| CN214474935U (en) | Electromagnetic interference resistance structural slab and touch module | |
| US11716818B2 (en) | Embedded-type transparent electrode substrate and method for manufacturing same | |
| CN101634918A (en) | Conducting film integrated structure | |
| KR20110004778A (en) | Touch panel | |
| JP2014002520A (en) | Touch panel and film body | |
| CN201440175U (en) | Anti-newton ring and anti-highlight structure of transparent laminate | |
| JP3182382U (en) | Polarizing structure with touch function | |
| CN204087174U (en) | Touching display screen | |
| KR20130013881A (en) | Cover film for electronic paper | |
| CN104238855B (en) | Touching display screen | |
| JPWO2011122307A1 (en) | Newton ring prevention sheet, manufacturing method thereof, and touch panel | |
| JP2018101602A (en) | Transparent conductive film | |
| TW201741844A (en) | Touch panel, display device, optical sheet, and optical sheet sorting method | |
| CN103336382A (en) | Light polarizing-filtering module and touch display screen using same | |
| CN204087178U (en) | Touching display screen | |
| CN204749425U (en) | High transparent electron protection film | |
| TWI588700B (en) | Touch-sensitive device | |
| CN104020886B (en) | Touch-screen | |
| CN203535600U (en) | Flexible thick film integrated touch display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |