CN109871160B - Electromagnetic touch screen, terminal equipment and preparation method of electromagnetic touch screen - Google Patents
Electromagnetic touch screen, terminal equipment and preparation method of electromagnetic touch screen Download PDFInfo
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- CN109871160B CN109871160B CN201910176200.5A CN201910176200A CN109871160B CN 109871160 B CN109871160 B CN 109871160B CN 201910176200 A CN201910176200 A CN 201910176200A CN 109871160 B CN109871160 B CN 109871160B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
Abstract
The embodiment of the invention discloses an electromagnetic touch screen, terminal equipment and a preparation method of the electromagnetic touch screen. The electromagnetic touch screen comprises a transparent substrate, an adhesive layer and an antenna array, wherein the transparent substrate comprises a first transparent substrate and a second transparent substrate; the glue layer is arranged between the first transparent substrate and the second transparent substrate; the antenna array is embedded in the adhesive layer, the adhesive layer comprises a first adhesive layer and a second adhesive layer, the first adhesive layer is arranged between the antenna array and the first surface of the first transparent substrate, and the second adhesive layer is arranged between the antenna array and the first surface of the second transparent substrate; the thickness of the first adhesive layer and the second adhesive layer is not less than twice the diameter of the wires used in the antenna array. By the technical scheme, the electromagnetic touch screen can be applied to the DLED light source product, the production cost is reduced, the production yield is improved, and mass production and popularization are facilitated.
Description
Technical Field
The invention relates to the field of intelligent panels, in particular to an electromagnetic touch screen, terminal equipment and a preparation method of the electromagnetic touch screen.
Background
With the continuous development of electronic technology, touch screens are becoming more and more essential components of various electronic products, especially electromagnetic touch screens, and are widely applied to the field of intelligent interactive panels. The existing large-size electromagnetic touch screen generally adopts a silver paste printing process, namely, an antenna array in the existing electromagnetic touch screen is manufactured by printing silver paste through a silk screen.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art: because the antenna is printed by silver thick liquid in traditional electromagnetic screen preparation technology, consequently the screen is non-transparent, can not use in the product of DLED (straight following formula LED) light source, and needs via hole interconnecting link before silver thick liquid printing, and processing technology is extremely complicated, prepares required silver thick liquid conducting material, is difficult for preserving, with high costs, and the production yield is low, is unfavorable for mass production to promote.
Disclosure of Invention
The embodiment of the invention provides an electromagnetic touch screen, terminal equipment and a preparation method of the electromagnetic touch screen, so that the electromagnetic touch screen is applied to a DLED light source product, the production cost is reduced, the production yield is improved, and the mass production and popularization are facilitated.
In a first aspect, an embodiment of the present invention provides an electromagnetic touch screen, including a transparent substrate, a glue layer, and an antenna array, where:
the transparent substrate comprises a first transparent substrate and a second transparent substrate;
the glue layer is arranged between the first transparent substrate and the second transparent substrate;
the antenna array is embedded in the adhesive layer;
the adhesive layer comprises a first adhesive layer and a second adhesive layer, wherein the first adhesive layer is an adhesive layer between the antenna array and the first surface of the first transparent substrate, and the second adhesive layer is an adhesive layer between the antenna array and the first surface of the second transparent substrate;
the thickness of the first glue layer and the second glue layer is not less than twice the diameter of the wires used in the antenna array.
In a second aspect, an embodiment of the present invention further provides a terminal device, where the terminal device includes a direct type backlight and any one of the electromagnetic touch screens in the embodiments of the present invention;
the electromagnetic touch screen is arranged on the light emitting side of the direct type backlight source.
In a third aspect, an embodiment of the present invention further provides a method for manufacturing an electromagnetic touch screen, where the method includes:
printing and wiring the antenna array on a first adhesive layer, wherein the first adhesive layer covers the first surface of the first transparent substrate;
attaching a first surface of a second transparent substrate to the first surface of the first transparent substrate, wherein a second adhesive layer covers the first surface of the second transparent substrate, so that the antenna array is embedded between the first adhesive layer and the second adhesive layer;
the thickness of the second glue layer is larger than that of the first glue layer.
According to the embodiment of the invention, the transparent base material and the glue layer are respectively arranged on two surfaces of the antenna array, wherein the transparent base material comprises the first transparent base material and the second transparent base material, the glue layer is arranged between the first transparent base material and the second transparent base material, and the antenna array is embedded in the glue layer.
Drawings
Fig. 1a is a schematic structural diagram of an electromagnetic touch screen according to an embodiment of the present invention;
fig. 1b is a schematic structural diagram of a preferred electromagnetic touch screen according to a first embodiment of the present invention;
fig. 2 is a schematic flowchart of a manufacturing method of an electromagnetic touch screen according to a second embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1a is a schematic structural diagram of an electromagnetic touch screen according to an embodiment of the present invention. As shown in fig. 1a, the electromagnetic touch screen includes: the transparent substrate 1, the adhesive layer 2, and the antenna array 3 will be described in detail below.
The transparent substrate 1 includes a first transparent substrate 11 and a second transparent substrate 12; the glue layer 2 is arranged between the first transparent substrate 11 and the second transparent substrate 12; the antenna array 3 is embedded in the glue layer 2.
Optionally, the transparent substrate 1 is made of a transparent material with good light transmittance and good dielectric properties, such as PMMA (Polymethyl methacrylate), PS (Polystyrene), PC (Polycarbonate), and preferably PET (Polyethylene terephthalate). Specifically, if the first transparent substrate 11 included in the transparent substrate 1 is located on the front side of the electromagnetic touch screen, that is, the viewing side of the user, the second transparent substrate 12 is located on the back side of the electromagnetic touch screen, that is, the backlight source illumination side; if the second transparent substrate 12 is located on the front surface of the electromagnetic touch screen, the first transparent substrate 11 is located on the back surface of the electromagnetic touch screen.
In this embodiment, the Adhesive layer 2 is a transparent Adhesive layer, such as OCA optical Adhesive (optical Clear Adhesive), or AB silica gel. Illustratively, the adhesive layer 2 is attached to the first transparent substrate 11 and the second transparent substrate 12, respectively, that is, a first surface of the adhesive layer 2 is attached to the first transparent substrate 11, and a second surface of the adhesive layer 2 is attached to the second transparent substrate 12.
Because the glue layer and the transparent substrate used in the electromagnetic touch screen provided in the embodiment are both made of transparent materials, and the light transmittance is good, the application of the electromagnetic touch screen in a DLED light source product can be realized. In addition, the adhesive layer and the transparent base material have good ductility, bending resistance and low cost, so that the production yield is greatly improved, the production cost is greatly reduced, and the adhesive layer and the transparent base material can be produced and popularized in a large scale.
The antenna array 3 provided in this embodiment is embedded in the adhesive layer 2, and is used for inducing a magnetic field change to generate a corresponding touch command. Because the glue film is transparent and insulating, consequently, antenna array 3 inlays the beneficial effect that in glue film 2, under the circumstances that does not influence the light transmissivity of electromagnetism touch screen, can play insulating, guard action to antenna array 3, improves the production yield. Specifically, the antenna array 3 may include a first antenna array layer 31 and a second antenna array layer 32, wherein the two antenna array layers both use wires as circuit materials, and the wires of the first antenna array layer 31 and the second antenna array layer 32 are distributed in a vertical staggered manner, which has the advantage that the electromagnetic touch screen can better receive electromagnetic signals sent from the outside.
As shown in fig. 1a, the adhesive layer 2 includes a first adhesive layer 21 and a second adhesive layer 22, wherein the first adhesive layer 21 is an adhesive layer between the antenna array 3 and the first surface of the first transparent substrate 11, and the second adhesive layer 21 is an adhesive layer between the antenna array 3 and the first surface of the second transparent substrate 12; the thickness of the first glue layer 21 and the second glue layer 22 is not less than twice the diameter of the wires used in the antenna array 3; the second transparent substrate 12 is disposed on the fixed side of the electromagnetic touch panel, and the thickness of the second adhesive layer 22 is greater than that of the first adhesive layer 21.
Wherein, the first surface of the first transparent substrate 11 is the surface facing the second transparent substrate 12; the first surface of the second transparent substrate 12 faces the first transparent substrate 11. Specifically, the wire may be an aluminum wire or an alloy wire, preferably a copper wire,
correspondingly, in the first case, the second transparent substrate 12 is disposed on the fixed side of the electromagnetic touch screen, for example, the electromagnetic touch screen is fixed by a backlight support pillar, and at this time, the thickness of the second adhesive layer 22 needs to be greater than that of the first adhesive layer 21; in the second case, the first transparent substrate 11 is disposed on the fixed side of the electromagnetic touch screen, for example, the electromagnetic touch screen is fixed by a front support pillar, and in this case, the thickness of the first adhesive layer 21 is required to be greater than that of the first adhesive layer 22. The benefit that sets up like this lies in, and the line of antenna array can be protected to the glue film of thickening, avoids being damaged by the support column.
The thickness of the first adhesive layer 21 and the second adhesive layer 22 is not less than twice the diameter of the wires used in the antenna array 3, which can effectively protect the pressure of the intersection point caused by the superposition of the two wires when the bonding process is performed between the first adhesive layer 21 and the second adhesive layer 22. The abrasion of the insulating protective layer on the surface of the lead is avoided. In the first case described above, it is preferable that the thickness of the second glue layer 22 is not less than three times the diameter of the wires used in the antenna array 3.
Optionally, the outer surfaces of the wires used in the antenna array 3 have an insulating protective layer.
The insulating protective layer may be an insulating protective rubber sleeve wrapped outside the wires used in the antenna array 3. It may also be an insulating material, such as an insulating glue, disposed between the first antenna array layer 31 and the second antenna array layer 32, which is not limited herein. The purpose of arranging the insulating protective layer on the outer surface of the lead is to protect the lead and simultaneously avoid series electrical short circuit between different antenna array layers.
Optionally, the wire is a copper wire, and the diameter of the copper wire is 20-50 μm.
Exemplarily, the diameter of the wire can influence the conductivity of the wire and the light transmission effect of the electromagnetic touch screen, that is, the thicker the wire, the better the conductivity, and the thinner the wire, the better the light transmission effect of the electromagnetic touch screen, therefore, the wire is set to be a copper wire with a diameter of 20-50 μm.
Optionally, the insulating protective layer is black or dark gray. The insulating protective layer is black or dark gray, and the black and dark gray can effectively avoid reflection and/or refraction interference when the backlight penetrates, so that rainbow fringes, light color temperature shift and the like are avoided.
Optionally, the second side of the second transparent substrate 12 is a uniformly roughened side.
Illustratively, the uniform rough surface is a translucent uniform rough surface obtained by surface treatment of a polarizer (AG process). The second surface of the second transparent substrate 12 is opposite to the first surface, and the uniform rough surface has the advantage that light emitted from the backlight source can be prevented from being directly reflected, so that the influence of the antenna array on the backlight source is improved. Optionally, the uniform matte surface has a haze ranging from 3% to 10%. The haze range can ensure good light transmission performance and simultaneously improve the influence of the antenna array on a backlight source to the maximum extent.
According to the technical scheme of the embodiment of the invention, the transparent base material and the glue layer are respectively arranged on two surfaces of the antenna array, wherein the transparent base material comprises the first transparent base material and the second transparent base material, the glue layer is arranged between the first transparent base material and the second transparent base material, and the antenna array is embedded in the glue layer.
As shown in fig. 1b, a schematic structural diagram of a preferred electromagnetic touch panel provided in this embodiment is shown, wherein on the basis of the above embodiment, optionally, one of a light guide plate and a diffusion plate (light guide plate or diffusion plate 4) and a third adhesive layer 23 are further included; the third adhesive layer 23 covers the second surface of the first transparent substrate 11, and the light guide plate or the diffusion plate 4 is attached to the third adhesive layer 23.
Specifically, the thickness of the third glue layer 23 may be set to be the same as the thickness of the first glue layer 21, and the third glue layer covers the second surface of the first transparent substrate 11 included in the transparent substrate 1, wherein the second surface of the first transparent substrate 11 is a reverse surface of the first surface. Exemplarily, the light guide plate or the diffusion plate is disposed on the front surface of the electromagnetic touch screen and attached to the third adhesive layer 23, so that light emitted from the backlight sequentially passes through the second transparent substrate 12, the second adhesive layer 22, the antenna array 3, the first adhesive layer 21, the first transparent substrate 11 and the third adhesive layer 23 and then irradiates on the light guide plate or the diffusion plate 4, and the light emitted from the backlight is uniformly distributed on the whole display surface through the light guide plate or the diffusion plate 4, thereby improving the viewing experience of a user.
On the basis of the foregoing embodiment, an embodiment of the present invention further provides a terminal device, where the terminal device includes a direct type backlight and the electromagnetic touch screen described in any one of the foregoing embodiments, and the electromagnetic touch screen is disposed on a light exit side of the direct type backlight.
Exemplarily, the electromagnetic touch screen is arranged on the light emitting side of the direct type backlight source (the DLED light source), and specifically, the back surface of the electromagnetic touch screen can be arranged toward the light emitting side of the DLED light source, so that light emitted by the DLED light source can penetrate through the electromagnetic touch screen, and the application of the electromagnetic touch screen in a product with the DLED light source is realized.
Example two
Fig. 2 is a schematic flow chart of a manufacturing method of an electromagnetic touch screen according to a second embodiment of the present invention. The method can be suitable for the condition of preparing the electromagnetic touch screen. The method specifically comprises the following steps:
and S210, printing and wiring the antenna array on a first adhesive layer, wherein the first adhesive layer covers the first surface of the first transparent substrate.
Alternatively, the first transparent substrate is made of a transparent material with good light transmittance and good dielectric properties, such as PMMA, PS, PC, and the like, and preferably PET. Specifically, the first transparent substrate is arranged on the front surface of the electromagnetic touch screen, and the first surface of the first transparent substrate is covered with a first glue layer. The first adhesive layer is a transparent adhesive layer, such as OCA optical adhesive or AB silica gel. For example, taking a PET substrate and an OCA optical adhesive as an example, before using a PET (hereinafter referred to as front PET) as a first transparent substrate, the appearance of the front PET may be checked, and after the check is passed, the front PET is positioned on a printer table, and a first side of the front PET covered with an OCA (hereinafter referred to as front OCA) as a first adhesive layer is placed upward, and a protective film of the front OCA is removed, so as to perform a subsequent antenna array printing operation.
Illustratively, the antenna array print is routed on the exposed face of the first glue layer. The electromagnetic touch screen is required to be prepared to have transparent application characteristics, so that the whole preparation process needs to be completed in an environment with specified dust-free standard within thousands of levels.
The antenna array in this embodiment may use conductive wires as the wiring material. Wherein the diameter of the wire is preferably set to 20-50 μm. Alternatively, the thickness of the first glue layer may be set to be greater than or equal to twice the diameter of the wires. For example, the antenna array is printed on the first adhesive layer, and the thickness of the first adhesive layer is smaller than that of the second adhesive layer, since the antenna printing head needs to detect the height of the positioning and wiring in real time, and the adhesive is transparent, if the adhesive is too thick, misjudgment is easily caused, and the antenna array is printed on the thin adhesive (i.e., the first adhesive layer), so that the misjudgment probability can be reduced, and the wiring operation of the antenna array is facilitated.
Specifically, the antenna array can be prepared by performing wiring process operation through a specially-made multi-axis 3D printing device and according to a specifically-designed functional pattern.
Optionally, the antenna array comprises a first antenna array layer and a second antenna array layer.
Correspondingly, print and lay the antenna array on the first glue film, including: printing a first antenna array layer on a first adhesive layer of a first transparent substrate according to a preset wiring direction; and after the printing of the first antenna array layer is confirmed to be finished, printing a second antenna array layer on the first antenna array layer or the second adhesive layer according to the vertical direction of the preset wiring direction, so that the wirings of the first antenna array layer and the second antenna array layer are distributed in a vertical staggered mode.
For example, first, a first antenna array layer is printed on a first glue layer of a first transparent substrate, a circuit test is performed on the printed first antenna array layer, and after the circuit test is passed, a second antenna array layer is printed on the first antenna array layer. Or printing a first antenna array layer on the first adhesive layer of the first transparent substrate, printing a second antenna array layer on the second adhesive layer of the second transparent substrate, and performing line test on each printed antenna array layer. The two antenna array layers are made of wires with insulating protective layers on the outer surfaces, and the wiring of the two antenna array layers is distributed in a vertical staggered mode. For the conventional silver paste printing process, since the silver paste is a conductive material, the two antenna array layers must be printed on the front and rear surfaces, respectively, or even if the antenna array layers are printed on a single surface, an insulating bridge is printed in advance before the intersection of the printed circuits, which not only complicates the process and increases the cost, but also lowers the yield. The two antenna array layers are printed and wired on the first adhesive layer or printed on the first adhesive layer and the second adhesive layer respectively, different antenna array layers are not required to be printed on the front surface and the back surface of the base material due to the fact that the adhesive layers are not conductive, the first antenna array layer and the second antenna array layer are only required to be printed on the single-surface adhesive layer respectively, the first transparent base material and the second transparent base material are attached to each other, and insulation treatment is not required to be conducted on circuit intersections, so that process difficulty and cost are reduced, production yield is improved, and production efficiency is improved.
And S220, attaching the first surface of the second transparent substrate towards the first surface of the first transparent substrate, wherein the first surface of the second transparent substrate is covered with a second adhesive layer, so that the antenna array is embedded between the first adhesive layer and the second adhesive layer.
Wherein, the thickness of the second glue film is larger than that of the first glue film. The antenna array is printed on the thin adhesive, so that the misjudgment probability can be reduced, and the wiring operation of the antenna array is facilitated.
Specifically, after it is determined that the antenna array printing is finished, that is, the first surface of the first transparent substrate is covered with the first adhesive layer, and after the antenna array is printed on the first adhesive layer, the whole processed first transparent substrate is transferred to the laminating machine table, so that subsequent laminating operation is performed.
Alternatively, the second transparent substrate may be made of a transparent material having good light transmittance and good dielectric properties, such as PMMA, PS, PC, and the like, preferably PET. The second transparent substrate is arranged on the back surface of the electromagnetic touch screen, and the first surface of the second transparent substrate is covered with a second adhesive layer. The second adhesive layer may be a transparent adhesive layer, such as OCA optical adhesive or AB silica gel, like the first adhesive layer. For example, in the case of a PET substrate and an OCA optical adhesive, before a bonding operation is performed using PET as a second transparent substrate (hereinafter referred to as back PET), the appearance of the back PET is checked, after the check is passed, an OCA protective film as a second adhesive layer (hereinafter referred to as back OCA) covering a first surface of the back PET is peeled off, and the bonding operation is performed with the first surface of the back PET facing the first surface of the front PET, so that the back OCA is bonded to the front OCA. Optionally, after the attaching operation is completed, the attached whole product can be subjected to appearance inspection first, and then a jig test is performed to perform an electrical performance test on the antenna array embedded between the first adhesive layer and the second adhesive layer after the attaching operation is performed.
According to the technical scheme, the antenna array is printed and wired on the first adhesive layer, the first adhesive layer covers the first surface of the first transparent substrate, the first surface of the second transparent substrate faces the first surface of the first transparent substrate to be attached, the first surface of the second transparent substrate is covered with the second adhesive layer, so that the antenna array is embedded between the first adhesive layer and the second adhesive layer, the antenna array is printed on the single-side adhesive layer through the adhesive layer and the transparent substrate, the electromagnetic touch screen prepared by the method can be applied to a product of a DLED light source, the preparation process is simplified, the production cost is reduced, and the production yield and the production efficiency of the electromagnetic touch screen are improved.
On the basis of the above embodiment, optionally, after the first surface of the second transparent substrate is attached to the first surface of the first transparent substrate, the method further includes: and defoaming the binding surfaces of the first adhesive layer and the second adhesive layer.
Because the one-time bonding process may cause the first adhesive layer and the second adhesive layer to be bonded loosely, that is, bubbles may occur, the bonded product needs to be placed into a high-pressure defoaming machine for defoaming treatment, so that the first adhesive layer and the second adhesive layer are bonded tightly without bubbles.
Illustratively, the product after the defoaming treatment can be subjected to processes of wiring, process inspection, electrical property test and the like, so that the electromagnetic touch screen is finally prepared. Specifically, an FPC (flat cable) can be connected to the wire outlet end of the antenna array, so that the external circuit can be connected when the electromagnetic touch screen is used. The process inspection may specifically include inspecting the overall appearance of the product, for example, detecting whether the fit is biased or not. The electrical performance test may specifically include performing a comprehensive test on the entire circuit after the FPC lines are connected, so as to ensure that the circuit of the electromagnetic touch screen is error-free.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (13)
1. An electromagnetic touch screen, comprising a transparent substrate, a glue layer and an antenna array, wherein:
the transparent substrate comprises a first transparent substrate and a second transparent substrate;
the glue layer is arranged between the first transparent substrate and the second transparent substrate;
the antenna array is embedded in the adhesive layer;
the adhesive layer comprises a first adhesive layer and a second adhesive layer, wherein the first adhesive layer is an adhesive layer between the antenna array and the first surface of the first transparent substrate, and the second adhesive layer is an adhesive layer between the antenna array and the first surface of the second transparent substrate;
the thickness of the first glue layer and the second glue layer is not less than twice the diameter of the wires used in the antenna array.
2. The electromagnetic touch screen of claim 1, wherein the antenna array comprises a first antenna array layer and a second antenna array layer, and the first antenna array layer and the second antenna array layer are distributed in a vertically staggered manner.
3. The electromagnetic touch screen of claim 1, wherein the outer surface of the wires used in the antenna array has a protective insulating layer.
4. The electromagnetic touch screen of claim 3, wherein the wire is a copper wire, and the diameter of the copper wire is 20-50 μm.
5. The electromagnetic touch screen of claim 3, wherein the insulating protective layer is black or dark gray.
6. The electromagnetic touch screen of claim 1, wherein the second surface of the second transparent substrate is a uniform roughened surface.
7. The electromagnetic touch screen of claim 6, wherein the uniform matte surface has a haze ranging from 3% to 10%.
8. The electromagnetic touch screen of claim 1, wherein the first side of the first transparent substrate is the side facing the second transparent substrate;
the first surface of the second transparent substrate is the surface facing the first transparent substrate.
9. The electromagnetic touch screen according to any one of claims 1-8, further comprising a third glue layer and one of a light guide plate and a diffuser plate;
the third adhesive layer covers the second surface of the first transparent base material, and the light guide plate or the diffusion plate is attached to the third adhesive layer.
10. A terminal device, comprising a direct type backlight and the electromagnetic touch screen of any one of claims 1 to 9;
the electromagnetic touch screen is arranged on the light emitting side of the direct type backlight source.
11. A preparation method of an electromagnetic touch screen is characterized by comprising the following steps:
printing and wiring the antenna array on a first adhesive layer, wherein the first adhesive layer covers the first surface of the first transparent substrate;
attaching a first surface of a second transparent substrate to the first surface of the first transparent substrate, wherein a second adhesive layer covers the first surface of the second transparent substrate, so that the antenna array is embedded between the first adhesive layer and the second adhesive layer;
the thicknesses of the first glue layer and the second glue layer are not less than twice of the diameter of the wires used in the antenna array, and the thickness of the second glue layer is greater than that of the first glue layer.
12. The method of claim 11, wherein the antenna array comprises a first antenna array layer and a second antenna array layer;
correspondingly, the printing and wiring of the antenna array on the first glue layer comprises the following steps:
printing the first antenna array layer on the first adhesive layer of the first transparent substrate according to a preset wiring direction;
and after the first antenna array layer is confirmed to be printed, printing the second antenna array layer on the first antenna array layer or the second adhesive layer according to the vertical direction of the preset wiring direction, so that the wirings of the first antenna array layer and the second antenna array layer are distributed in a vertical staggered mode.
13. The method of claim 11 or 12, further comprising, after attaching the first side of the second transparent substrate toward the first side of the first transparent substrate:
and defoaming the binding surfaces of the first adhesive layer and the second adhesive layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910176200.5A CN109871160B (en) | 2018-05-29 | 2018-05-29 | Electromagnetic touch screen, terminal equipment and preparation method of electromagnetic touch screen |
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| CN201910176200.5A CN109871160B (en) | 2018-05-29 | 2018-05-29 | Electromagnetic touch screen, terminal equipment and preparation method of electromagnetic touch screen |
| CN201810529014.0A CN108572768B (en) | 2018-05-29 | 2018-05-29 | The preparation method of electromagnetic touch screen, terminal device and electromagnetic touch screen |
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| CN201810529014.0A Division CN108572768B (en) | 2018-05-29 | 2018-05-29 | The preparation method of electromagnetic touch screen, terminal device and electromagnetic touch screen |
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| CN207817675U (en) * | 2018-01-19 | 2018-09-04 | 广州视源电子科技股份有限公司 | Magnetic board, touch screen and interactive device |
| CN108572768B (en) * | 2018-05-29 | 2019-04-16 | 广州视源电子科技股份有限公司 | The preparation method of electromagnetic touch screen, terminal device and electromagnetic touch screen |
| CN110120995B (en) * | 2019-05-16 | 2021-05-18 | Oppo广东移动通信有限公司 | Display assembly and mobile terminal |
| CN111596791A (en) | 2020-04-28 | 2020-08-28 | 北京载诚科技有限公司 | Touch panel |
| CN111651099A (en) | 2020-04-28 | 2020-09-11 | 北京载诚科技有限公司 | Touch device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2816935Y (en) * | 2005-07-25 | 2006-09-13 | 钟德超 | Transparent electromagnetic touch screen |
| CN203102219U (en) * | 2012-12-31 | 2013-07-31 | 苏州斯迪克新材料科技股份有限公司 | Capacitive touch screen structure |
| CN103345321A (en) * | 2013-07-05 | 2013-10-09 | 南昌欧菲光显示技术有限公司 | Optical filter box and touch display screen |
| CN103412661A (en) * | 2013-03-30 | 2013-11-27 | 深圳欧菲光科技股份有限公司 | Single-layer touch screen and preparation method thereof |
| CN105511685A (en) * | 2016-01-19 | 2016-04-20 | 深圳市华鼎星科技有限公司 | Metal net electromagnetic touch sensor, touch module and electronic touch device |
| CN206757569U (en) * | 2017-03-22 | 2017-12-15 | 研华股份有限公司 | Touch control display device |
| CN108572768B (en) * | 2018-05-29 | 2019-04-16 | 广州视源电子科技股份有限公司 | The preparation method of electromagnetic touch screen, terminal device and electromagnetic touch screen |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5854947B2 (en) * | 2012-08-01 | 2016-02-09 | 株式会社ジャパンディスプレイ | Display device with input device, method for manufacturing the same, and electronic device |
| CN203217516U (en) * | 2013-04-03 | 2013-09-25 | 苏州泛普纳米科技有限公司 | Intelligent dimming induction flexible panel and operating system thereof |
-
2018
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2816935Y (en) * | 2005-07-25 | 2006-09-13 | 钟德超 | Transparent electromagnetic touch screen |
| CN203102219U (en) * | 2012-12-31 | 2013-07-31 | 苏州斯迪克新材料科技股份有限公司 | Capacitive touch screen structure |
| CN103412661A (en) * | 2013-03-30 | 2013-11-27 | 深圳欧菲光科技股份有限公司 | Single-layer touch screen and preparation method thereof |
| CN103345321A (en) * | 2013-07-05 | 2013-10-09 | 南昌欧菲光显示技术有限公司 | Optical filter box and touch display screen |
| CN105511685A (en) * | 2016-01-19 | 2016-04-20 | 深圳市华鼎星科技有限公司 | Metal net electromagnetic touch sensor, touch module and electronic touch device |
| CN206757569U (en) * | 2017-03-22 | 2017-12-15 | 研华股份有限公司 | Touch control display device |
| CN108572768B (en) * | 2018-05-29 | 2019-04-16 | 广州视源电子科技股份有限公司 | The preparation method of electromagnetic touch screen, terminal device and electromagnetic touch screen |
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| Publication number | Publication date |
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| CN109871160A (en) | 2019-06-11 |
| CN108572768B (en) | 2019-04-16 |
| CN108572768A (en) | 2018-09-25 |
| WO2019227867A1 (en) | 2019-12-05 |
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