Touch screen structure

Abstract

The embodiment of the utility model belongs to the technical field of touch screens. The utility model further relates to a touch screen structure which comprises the touch screen module and the anti-interference assembly arranged on one side of the touch screen module, the anti-interference assembly comprises the graphene layer, and the graphene layer is used for preventing interference signals from being transmitted to the touch screen module. The graphene layer is arranged on one side of the touch screen module, effective blocking and conversion of interference signals such as electromagnetic waves are achieved, specifically, when the interference signals such as the electromagnetic waves pass through the graphene layer, the interference signals are blocked by the graphene layer and converted into heat energy to be consumed, meanwhile, due to the fact that the graphene layer is high in heat conductivity, the heat conductivity of the graphene layer is greatly improved, and the service life of the touch screen module is prolonged. The heat can be quickly dissipated and cannot be accumulated, so that the touch screen module is prevented from being interfered, the capacitance value of the touch screen module is ensured to be stable, and the condition of disordered report points cannot occur; in addition, the high transmittance characteristic of the graphene layer ensures that the visual area transmittance of the touch screen module is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of touch screens, and more specifically, to a touch screen structure. Background Art

[0002] With the rapid development of information technology, touch screen technology has become an important interface for modern human-computer interaction. Touch screens are not only widely used in consumer electronic products such as smart phones and tablets, but also play an irreplaceable role in car navigation, medical equipment, industrial control and other fields. However, with the widespread application of touch screen technology, the challenges it faces are becoming increasingly prominent, especially in complex environments, where the stability and reliability of touch screens are particularly prominent.

[0003] In the working process of the touch screen, interference signals such as electromagnetic waves are a problem that cannot be ignored. These interference signals may come from electromagnetic radiation sources in the external environment, such as electromagnetic fields generated by wireless communication equipment and electronic equipment, or from electromagnetic noise generated by the internal circuit of the touch screen. These interference signals will interfere with the sensing signal of the touch screen, causing false alarm points and unstable capacitance on the touch screen, which seriously affects the reliability of the touch screen and user experience. Therefore, we have made improvements and proposed a touch screen structure.

[0004] For example, a Chinese patent (publication number CN206411647U) discloses a capacitive touch screen that is resistant to electromagnetic interference, and its specification discloses that: capacitive touch screens are currently widely used. Capacitive touch screens work by using the current induction of the human body. When a finger touches the metal layer, since the human body is the same as the earth, a coupling capacitor is formed between the user and the surface of the capacitive touch screen, and the finger absorbs a very small current from the contact point. This current flows out from the electrodes on the four corners of the capacitive touch screen, and the current passing through the four electrodes is proportional to the distance from the finger to the four corners. The control is carried out by accurately calculating the four current ratios to obtain the position of the touch point. The capacitive touch screen in the prior art has poor sealing performance during the design of the structure or during the packaging process. If the user uses it for a long time, the capacitive touch screen will be affected by external electromagnetic waves, which will make the capacitive touch screen unable to work normally, and in severe cases, the capacitive touch screen will be damaged. Therefore, it is urgent to develop a capacitive touch screen that is resistant to electromagnetic interference, has good sealing performance, is anti-interference, and is easy to install. Utility Model Content

[0005] The technical problem to be solved by the embodiments of the utility model is that the touch screen is easily disturbed by interference signals such as electromagnetic waves during its operation.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A touch screen structure comprises: a touch screen module and an anti-interference component arranged on one side of the touch screen module, wherein the anti-interference component comprises a graphene layer, and the graphene layer is used to block the transmission of interference signals to the touch screen module.

[0008] As an improved manner of the utility model, the anti-interference component further includes a graphene carrier, the graphene carrier is connected to a side of the graphene layer close to the touch screen module, and the graphene carrier is used to carry the graphene layer.

[0009] As an improved manner of the utility model, the touch screen module includes an ITO pattern layer, and the ITO pattern layer is located on a side of the graphene carrier away from the graphene layer.

[0010] As an improved manner of the utility model, a touch screen SENSOR is arranged on the side of the ITO pattern layer away from the graphene carrier.

[0011] As an improved manner of the utility model, a side of the ITO pattern layer close to the graphene carrier is connected to a second transparent OCA adhesive layer, and the second transparent OCA adhesive layer is connected to a side of the graphene carrier away from the graphene layer.

[0012] As an improved manner of the present invention, the touch screen module further includes a touch screen FPC, and the touch screen FPC is connected to the ITO pattern layer.

[0013] As an improved manner of the utility model, a first transparent OCA adhesive layer is connected to a side of the graphene layer away from the graphene carrier.

[0014] As an improved manner of the present invention, the first transparent OCA adhesive layer, the graphene carrier, the graphene layer and the second transparent OCA adhesive layer are all transparent.

[0015] As an improved manner of the present invention, a protective member is provided on the side of the first transparent OCA adhesive layer away from the graphene layer, and the protective member is used for protecting the graphene layer.

[0016] As an improved manner of the utility model, the protective member is a touch screen cover plate, and the touch screen cover plate is adhered to a side of the first transparent OCA adhesive layer away from the graphene layer.

[0017] Compared with the prior art, the embodiments of the present invention mainly have the following beneficial effects:

[0018] In order to solve the problem in the prior art that the touch screen is easily interfered by interference signals such as electromagnetic waves during operation, the present application realizes effective blocking and conversion of interference signals such as electromagnetic waves by setting a graphene layer on one side of the touch screen module. Specifically, when interference signal waves such as electromagnetic waves pass through the graphene layer, they are blocked by the graphene layer and converted into heat energy for consumption. At the same time, due to the strong thermal conductivity of the graphene layer, the heat can be quickly dissipated and will not be accumulated, thereby avoiding interference to the touch screen module and ensuring that the capacitance of the touch screen module is stable without random reporting. In addition, the high transmittance characteristics of the graphene layer ensure that the transmittance of the viewing area of ​​the touch screen module is not affected, and users can obtain a clear and smooth touch experience during use. At the same time, the antistatic performance of graphene also helps to improve the stability and reliability of the touch screen module. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of the touch screen provided in this application;

[0020] Figure 2 A schematic diagram of the structure of the anti-interference component of the touch screen structure provided by the present application;

[0021] Figure 3 A schematic diagram of the structure of the graphene layer of the touch screen structure provided in this application;

[0022] Figure 4 A schematic diagram of the structure of a touch screen module of the touch screen structure provided in this application.

[0023] Indicated in the figure:

[0024] 1. Anti-interference component; 101. Graphene carrier; 102. Graphene layer; 2. First transparent OCA adhesive layer; 3. Second transparent OCA adhesive layer; 4. Touch screen module; 401. ITO pattern layer; 402. Touch screen SENSOR; 403. Touch screen FPC; 5. Touch screen cover. DETAILED DESCRIPTION

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention belongs; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Reference to "embodiments" herein means that specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of this 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.

[0026] As described in the background technology, during the operation of the touch screen, interference signals such as electromagnetic waves are a problem that cannot be ignored. These interference signals may come from electromagnetic radiation sources in the external environment, such as electromagnetic fields generated by wireless communication equipment and electronic equipment, etc., or may come from electromagnetic noise generated by the internal circuit of the touch screen. These interference signals will interfere with the sensing signal of the touch screen, causing problems such as false alarm points and unstable capacitance on the touch screen, which seriously affects the reliability of the touch screen and user experience.

[0027] In order to solve this technical problem, the utility model provides a touch screen structure.

[0028] Specifically, please refer to Figure 1-Figure 4 , the touch screen structure specifically includes:

[0029] The touch screen module 4 and the anti-interference component 1 arranged on one side of the touch screen module 4 , the anti-interference component 1 includes a graphene layer 102 , and the graphene layer 102 is used to block the transmission of interference signals to the touch screen module 4 .

[0030] The touch screen structure provided by the utility model realizes effective blocking and conversion of interference signals such as electromagnetic waves by setting a graphene layer 102 on one side of the touch screen module 4. Specifically, when interference signal waves such as electromagnetic waves pass through the graphene layer 102, they are blocked by the graphene layer 102 and converted into heat energy for consumption. At the same time, due to the strong thermal conductivity of the graphene layer 102, the heat can be quickly dissipated and will not be accumulated, thereby avoiding interference to the touch screen module 4 and ensuring that the capacitance value of the touch screen module 4 is stable without random reporting. In addition, the high transmittance characteristics of the graphene layer 102 ensure that the transmittance of the viewing area of ​​the touch screen module 4 is not affected, and the user can obtain a clear and smooth touch experience during use. At the same time, the antistatic performance of graphene also helps to improve the stability and reliability of the touch screen module 4.

[0031] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] Embodiment 1 of the touch screen structure of the utility model

[0035] Please refer to Figure 1-Figure 4 The touch screen structure of the utility model includes: a touch screen module 4 and an anti-interference component 1 arranged on one side of the touch screen module 4, the anti-interference component 1 includes a graphene layer 102, the graphene layer 102 is a single-layer transparent graphene with a transmittance of 97.7%, and is a new material with a single-layer sheet structure composed of carbon atoms, with extremely high transparency, excellent electrical conductivity, thermal conductivity and mechanical strength; the graphene layer 102 is used to block the transmission of interference signals to the touch screen module 4. The utility model realizes effective blocking and conversion of interference signals such as electromagnetic waves by setting a graphene layer 102 on one side of the touch screen module 4. Specifically, when electromagnetic waves When the interference signal waves pass through the graphene layer 102, they are blocked by the graphene layer 102 and converted into heat energy and consumed. At the same time, due to the strong thermal conductivity of the graphene layer 102, the heat can be quickly dissipated and will not be accumulated, thereby avoiding interference to the touch screen module 4 and ensuring that the capacitance of the touch screen module 4 is stable and there will be no random reporting. In addition, the high transmittance characteristics of the graphene layer 102 ensure that the transmittance of the viewing area of ​​the touch screen module 4 is not affected, and the user can obtain a clear and smooth touch experience during use. At the same time, the anti-static properties of graphene also help to improve the stability and reliability of the touch screen module 4.

[0036] Further, such as Figure 1-Figure 3 As shown, the anti-interference component 1 also includes a graphene carrier 101, the graphene carrier 101 is connected to the side of the graphene layer 102 close to the touch screen module 4, and the graphene carrier 101 is used to carry the graphene layer 102, and the graphene carrier 101 can be made of glass or polymer. Glass has high transparency, good mechanical properties and chemical stability; polymer materials have the characteristics of light weight, flexibility and good processability;

[0037] Polymers available:

[0038] Polyethylene terephthalate (PET): PET is a lightweight, transparent, and flexible polymer material with good optical and mechanical properties, and can be used as a graphene carrier 101;

[0039] Polyimide (PI): Polyimide is a high-temperature resistant, high-strength polymer material with excellent thermal and chemical stability. PI film can be used as a graphene carrier 101 due to its excellent performance;

[0040] Polycarbonate (PC): PC is a polymer material with high transparency and strong impact resistance. Due to its good optical and mechanical properties, PC can also be used as a graphene carrier 101;

[0041] Polymethyl methacrylate (PMMA): PMMA is a polymer material with high transparency and easy processing. Due to its good optical properties and processing properties, PMMA is also used as a graphene carrier 101;

[0042] Polydimethylsiloxane (PDMS): PDMS is a polymer material with good elasticity and high transparency. Due to its flexibility and transparency, PDMS can also be used as a graphene carrier 101.

[0043] Embodiment 2 of the touch screen structure of the utility model

[0044] The touch screen structure of the utility model is further as follows: Figure 1 and Figure 4 As shown, the touch screen module 4 includes an ITO pattern layer 401, which is located on the side of the graphene carrier 101 away from the graphene layer 102. The ITO pattern layer 401 has excellent conductive properties, which can ensure that the current of the touch screen can be smoothly transmitted when touched. When the user touches the screen, the ITO pattern layer 401 will sense the touch position and transmit the corresponding current signal; ITO is a transparent material, so it will not affect the display effect of the touch screen, which enables the touch screen to achieve touch function while maintaining high clarity.

[0045] Further, such as Figure 1 As shown, a touch screen SENSOR 402 is arranged on the side of the ITO pattern layer 401 away from the graphene carrier 101. The touch screen SENSOR 402 can accurately detect the position of the user's finger or other touch object on the screen, which is achieved by measuring the change of capacitance, resistance or other physical quantities at the touch point; once the touch is detected, the touch screen SENSOR 402 will convert this physical change into electrical signals, which are then transmitted to the controller or processing unit of the touch screen for further processing and analysis.

[0046] Further, such as Figure 1 As shown, a second transparent OCA adhesive layer 3 is connected to a side of the ITO pattern layer 401 close to the graphene carrier 101, and the second transparent OCA adhesive layer 3 is connected to a side of the graphene carrier 101 away from the graphene layer 102. The graphene carrier 101 and the ITO pattern layer 401 can be connected together through the second transparent OCA adhesive layer 3.

[0047] Further, such as Figure 1 and Figure 4As shown, the touch screen module 4 also includes a touch screen FPC 403, which is connected to the ITO pattern layer 401. The touch screen FPC 403 is mainly used to connect the ITO pattern layer 401 with the main board or other control devices. The touch screen FPC 403 is not only an important connecting link between the touch screen module 4 and the main board, but also undertakes the important task of transmitting current and signals. At the same time, the flexibility of the FPC enables the touch screen to be designed to be lighter and more compact, thereby improving the overall performance and reliability of the device.

[0048] Embodiment 3 of the touch screen structure of the utility model

[0049] The touch screen structure of the utility model is further as follows: Figure 1 As shown, a first transparent OCA adhesive layer 2 is connected to a surface of the graphene layer 102 away from the graphene carrier 101 .

[0050] Further, such as Figure 1 As shown, the first transparent OCA adhesive layer 2, the graphene carrier 101, the graphene layer 102 and the second transparent OCA adhesive layer 3 are all transparent. The transparent setting of the first transparent OCA adhesive layer 2, the graphene carrier 101, the graphene layer 102 and the second transparent OCA adhesive layer 3 will not have much impact on the transmittance of the touch screen module 4.

[0051] Further, such as Figure 1 As shown, a protective member is provided on the side of the first transparent OCA adhesive layer 2 away from the graphene layer 102 , and the protective member is used to protect the graphene layer 102 to reduce damage to the graphene layer 102 .

[0052] Further, such as Figure 1 As shown, the protective member is a touch screen cover plate 5, and the touch screen cover plate 5 is adhered to the side of the first transparent OCA adhesive layer 2 away from the graphene layer 102, that is, the touch screen cover plate 5 and the graphene layer 102 are connected through the first transparent OCA adhesive layer 2, and the touch screen cover plate 5 can protect the graphene layer 102;

[0053] OCA optical adhesive is a special adhesive used to bond transparent optical components. It belongs to the category of pressure-sensitive adhesive. Its main characteristics include colorless transparency, high light transmittance, good bonding strength, and the ability to cure at room temperature or medium temperature with small curing shrinkage. OCA optical adhesive is made by making optical acrylic adhesive without a substrate, and then a layer of release film is attached to the upper and lower bottom layers to form a substrate-free, highly transparent double-sided bonding tape. As one of the important raw materials for touch screens, OCA optical adhesive is mainly used for bonding materials on touch screens to achieve the effect of capacitive touch sensing. Its advantages include high clarity, high light transmittance, high adhesion, water and high temperature resistance, and UV resistance.

[0054] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A touch screen structure, characterized in that: include: A touch screen module (4) and an anti-interference component (1) arranged on one side of the touch screen module (4), wherein the anti-interference component (1) comprises a graphene layer (102), and the graphene layer (102) is used to block the transmission of interference signals to the touch screen module (4).

2. The touch screen structure according to claim 1, characterized in that: The anti-interference component (1) further comprises a graphene carrier (101), wherein the graphene carrier (101) is connected to a side of the graphene layer (102) close to the touch screen module (4), and the graphene carrier (101) is used to carry the graphene layer (102).

3. The touch screen structure according to claim 2, characterized in that: The touch screen module (4) comprises an ITO pattern layer (401), wherein the ITO pattern layer (401) is located on a side of the graphene carrier (101) away from the graphene layer (102).

4. The touch screen structure according to claim 3, characterized in that: A touch screen SENSOR (402) is provided on a side of the ITO pattern layer (401) away from the graphene carrier (101).

5. The touch screen structure according to claim 4, characterized in that: A second transparent OCA adhesive layer (3) is connected to a side of the ITO pattern layer (401) close to the graphene carrier (101), and the second transparent OCA adhesive layer (3) is connected to a side of the graphene carrier (101) away from the graphene layer (102).

6. The touch screen structure according to claim 5, characterized in that: The touch screen module (4) further comprises a touch screen FPC (403), wherein the touch screen FPC (403) is connected to the ITO pattern layer (401).

7. The touch screen structure according to claim 6, characterized in that: A first transparent OCA adhesive layer (2) is connected to a surface of the graphene layer (102) that is away from the graphene carrier (101).

8. The touch screen structure according to claim 7, characterized in that: The first transparent OCA adhesive layer (2), the graphene carrier (101), the graphene layer (102) and the second transparent OCA adhesive layer (3) are all transparent.

9. The touch screen structure according to claim 8, characterized in that: A protective member is provided on the side of the first transparent OCA adhesive layer (2) away from the graphene layer (102), and the protective member is used to protect the graphene layer (102).

10. The touch screen structure according to claim 9, characterized in that: The protective element is a touch screen cover plate (5), and the touch screen cover plate (5) is adhered to a surface of the first transparent OCA adhesive layer (2) that is away from the graphene layer (102).

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