Diffusion film assembly for vehicle-mounted touch screen and rolled film material

Abstract

The utility model discloses a diffusion film component for a vehicle-mounted touch screen, which comprises a diffusion film body, a double-faced adhesive tape layer is arranged on the upper surface of the diffusion film body, a release film layer is arranged on the upper surface of the double-faced adhesive tape layer, the diffusion film body comprises a long-strip-shaped diffusion film base strip, and the diffusion film base strip is arranged on the lower surface of the double-faced adhesive tape layer. And a plurality of circular key areas are distributed on the diffusion film base strip. On the basis, aiming at the technical problems, the utility model further provides a rolled film material which comprises the diffusion film assembly for the vehicle-mounted touch screen, and a plurality of positioning reading grooves are formed in the edges of the two sides of the rolled film material. Due to the fact that the positioning reading grooves are formed in the edges of the two sides of the rolled film material, the appearance and the position of the positioning reading grooves are fixed, an automatic machine recognizes the position and the appearance of the diffusion film body through the positioning reading grooves, and therefore the diffusion film body is positioned and sucked through the suction head, and the assembly film pasting technology is achieved through the diffusion film body and a touch screen product.

Description

Technical Field

[0001] The utility model relates to a vehicle-mounted touch screen, more specifically, to a diffusion film component and a rolled film material used for the vehicle-mounted touch screen. Background Art

[0002] Usually, the structure of the car touch screen with buttons basically needs to be assembled with a diffusion film. As a medium for dispersing the light source of the buttons, the diffusion film has become an indispensable accessory. Traditionally, the diffusion film is usually applied manually or with a clamp, which is relatively inefficient. In order to ensure the installation accuracy, a layer of positioning film and a clamp are usually added to the independent diffusion film to achieve positioning installation. The added positioning film will lead to an increase in the unit price of the product. Therefore, the manual installation of the diffusion film is obviously inefficient.

[0003] Chinese utility model patent document CN212933502U discloses a contact backlight structure of a vehicle-mounted touch screen, including a back plate, a light-emitting structure is fixedly installed on the top of the back plate, a reflector is arranged on the top of the light-emitting structure, a plurality of openings are opened at equal intervals on the top of the reflector, a lower diffuser is fixedly connected to the top of the reflector, a lower composite film is fixedly connected to the top of the lower diffuser, an upper composite film is fixedly connected to the top of the lower composite film, an upper diffuser is fixedly connected to the top of the upper composite film, a middle frame is fixedly connected to the top of the middle frame, and a front frame is fixedly connected to the top of the liquid crystal panel. The light-emitting structure includes a heat sink, a heat conducting plate is fixedly connected to the top of the heat sink, heat-conducting silicone grease is arranged between the heat conducting plate and the heat sink, and an LED light strip is fixedly installed on the top of the heat conducting plate. Limiting seats are fixedly installed on both sides of the top of the back plate, and limiting grooves are arranged on the top of the limiting seats, and limiting columns matching the limiting grooves are fixedly installed on both sides of the bottom of the front frame. There are four limit seats, and the four limit seats are respectively located at the four corners of the top of the back plate. There are four limit posts, and the four limit posts are respectively located at the four corners of the bottom of the back plate. Pads are fixedly installed on the top of the back plate and on both sides of the light-emitting structure. The top of the pad overlaps the bottom of the reflector.

[0004] Obviously, this patent uses a limit seat, a limit column and a limit groove in coordination. When the front frame and the back panel are connected, the limit column is inserted into the limit groove. At this time, the limit seat is clamped with the limit column through the limit groove, so that when the back panel and the front frame are connected, the position of the back panel and the front frame is first limited, and then the back panel and the front frame are fixed. This is beneficial to prevent the back panel and the front frame from being misaligned when they are fixed, thereby ensuring the fixing effect between the back panel and the front frame. Moreover, limiting the position between the back panel and the front frame first can also realize automatic alignment of related fixing holes, thereby reducing the difficulty of fixing the back panel and the front frame. In addition, the patent uses LED light strips, heat conducting plates, thermal grease and heat sinks together to install the LED light strips on the heat conducting plates. The heat conducting plates can absorb the heat from the LED light strips and transfer the heat to the heat sinks for heat conduction cooling, so that the heat source of the backlight structure has a heat dissipation structure, and thermal grease is added between the heat conducting plates and the heat sinks, further improving the heat dissipation effect of the heat dissipation structure. However, this structure cannot solve the cost problem of the existing artificial diffusion film. Utility Model Content

[0005] Based on this, it is necessary to provide a diffusion film assembly for a vehicle-mounted touch screen in view of the above technical problems. The diffusion film assembly for a vehicle-mounted touch screen includes a diffusion film body, a double-sided adhesive layer is provided on the upper surface of the diffusion film body, a release film layer is provided on the upper surface of the double-sided adhesive layer, and the diffusion film body includes a long diffusion film base strip, and a plurality of circular key areas are distributed on the diffusion film base strip. Based on this, it is necessary to provide a roll film material in view of the above technical problems, including the diffusion film assembly for a vehicle-mounted touch screen as described above, and a plurality of positioning reading grooves are provided on both side edges of the roll film material. Since the positioning reading grooves are provided on both side edges of the roll film material, and the shape and position of the positioning reading grooves are fixed, the automated machine identifies the position and shape of the diffusion film body through the positioning reading grooves, thereby realizing the positioning of the diffusion film body, and sucking the diffusion film body with a suction head, and realizing the assembly film process with the touch screen product. Since the roll film material is supplied in rolls and the release film layer is made into a whole sheet, there is no need to tear off the bottom release film before assembly, which saves a lot of manpower and material resources, improves the efficiency and accuracy of the diffusion film, reduces costs and improves benefits.

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

[0007] A diffusion film assembly for a vehicle-mounted touch screen, the diffusion film assembly for a vehicle-mounted touch screen comprising a diffusion film body, a double-sided adhesive layer is provided on the upper surface of the diffusion film body, a release film layer is provided on the upper surface of the double-sided adhesive layer, the diffusion film body comprises a long strip of diffusion film base strip, and a plurality of circular key areas are distributed on the diffusion film base strip.

[0008] As a preferred implementation of the diffusion film assembly for a vehicle-mounted touch screen provided by the utility model, the back of the key area is provided with a double-sided adhesive hollowing area.

[0009] A roll film material comprises the aforementioned diffusion film assembly for a vehicle-mounted touch screen, wherein both side edges of the roll film material are provided with a plurality of positioning reading grooves.

[0010] As a preferred embodiment of the roll film material provided by the utility model, the release film layer is a PET release film.

[0011] As a preferred embodiment of the rolled film material provided by the utility model, the positioning reading groove is in an oblong shape.

[0012] As a preferred implementation of the roll film material provided by the utility model, the positioning reading groove is in a "T" shape.

[0013] As a preferred implementation of the roll film material provided by the utility model, the positioning reading groove is in a cross shape.

[0014] As a preferred implementation of the roll film material provided by the utility model, a plurality of positioning marks are provided on the release film layer.

[0015] As a preferred implementation of the rolled film material provided by the utility model, the position of the positioning mark corresponds to the key area.

[0016] As a preferred implementation of the rolled film material provided by the utility model, the positioning mark is black.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model provides a diffusion film assembly for a vehicle-mounted touch screen. Since both sides of the rolled film material are provided with positioning reading grooves, the shape and position of the positioning reading grooves are fixed, and the automatic machine identifies the position and shape of the diffusion film body through the positioning reading grooves, thereby positioning the diffusion film body, sucking the diffusion film body with a suction head, and realizing the assembly and filming process with the touch screen product. Since the rolled film material adopts rolled incoming materials, the release film layer is made into a whole sheet, and there is no need to tear off the bottom release film before assembly, which saves a lot of manpower and material resources, improves the diffusion film pasting efficiency and film pasting accuracy, reduces costs, and improves benefits.

[0019] In addition, the positioning reading groove can be made into a "T" shape. Or, the positioning reading groove can be made into a cross shape. Using a "T"-shaped or cross-shaped positioning reading groove not only facilitates the automated machine to identify the position and shape of the diffusion film body through the positioning reading groove, but also facilitates the automated machine to locate the inclination angle of the positioning reading groove to prevent the position of the rolled film material from being offset.

[0020] In addition, the release film layer may be provided with a plurality of positioning marks. The position of the positioning mark corresponds to the key area. The positioning mark is black. When the automated machine sucks the diffusion film body with a suction head, a positioning mark will be left on the release film layer. At this time, the automated machine visually inspects the remaining positioning mark. If it is found that a positioning mark is blocked, it is determined that the diffusion film body has not been correctly sucked. At this time, the automated machine alarms and notifies the staff to perform maintenance. The positioning mark effectively improves the reliability of the rolled film material. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the hierarchical structure of the diffusion film assembly for the vehicle-mounted touch screen of the utility model;

[0023] Figure 2 for Figure 1 A schematic structural diagram of a diffusion film body of a diffusion film assembly for a vehicle-mounted touch screen, in which the front side of the diffusion film body is shown;

[0024] Figure 3 for Figure 1 A schematic diagram of the structure of a diffusion film body of a diffusion film assembly for a vehicle-mounted touch screen, in which the back side of the diffusion film body is shown;

[0025] Figure 4 It is a structural schematic diagram of the roll film material of the utility model;

[0026] Figure 5 for Figure 4 A detailed enlarged schematic diagram of the A area of ​​the rolled film material;

[0027] Figure 6 for Figure 5 A structural schematic diagram of another embodiment of the positioning reading slot of the roll film material;

[0028] Figure 7 for Figure 5 A structural schematic diagram of another embodiment of the positioning reading slot of the roll film material;

[0029] Figure 8 for Figure 4 A schematic structural diagram of another embodiment of the rolled film material;

[0030] The markings in the figure are as follows: 1. Diffusion membrane body; 11. Diffusion membrane base strip; 12. Key area; 121. Double-sided adhesive hollow area; 2. Double-sided adhesive layer; 3. Release film layer; 31. Positioning mark; 4. Positioning reading groove. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0032] As described in the background technology, for vehicle-mounted touch screens, the structure of the vehicle-mounted touch screen with buttons in the prior art basically requires the assembly of a diffusion film. As a medium for dispersing the light source of the buttons, the diffusion film has become an indispensable accessory. Traditionally, the diffusion film is generally applied manually or with a clamp, and its efficiency is relatively low. In order to ensure the installation accuracy, a layer of positioning film and a clamp are usually added to the independent diffusion film to achieve positioning installation. The added positioning film will lead to an increase in the unit price of the product. Therefore, the manual installation of the diffusion film is obviously inefficient.

[0033] In order to solve this technical problem, the utility model provides a diffusion film assembly for a vehicle-mounted touch screen, comprising a diffusion film body 1, a double-sided adhesive layer 2 is provided on the upper surface of the diffusion film body 1, a release film layer 3 is provided on the upper surface of the double-sided adhesive layer 2, the diffusion film body 1 comprises a long diffusion film base strip 11, and a plurality of circular key areas 12 are distributed on the diffusion film base strip 11. The roll film material comprises a plurality of diffusion film assemblies, and a plurality of positioning reading grooves 4 are provided on both side edges of the roll film material.

[0034] Through the above structural design, since both sides of the roll film material are provided with positioning reading grooves 4, the shape and position of the positioning reading grooves 4 are fixed, the automated machine identifies the position and shape of the diffusion film body 1 through the positioning reading grooves 4, thereby positioning the diffusion film body 1, sucking the diffusion film body 1 with a suction head, and realizing the assembly and filming process with the touch screen product. Since the roll film material adopts the roll material, the release film layer 3 is made into a whole sheet, and there is no need to tear off the bottom release film before assembly, which saves a lot of manpower and material resources, improves the diffusion film pasting efficiency and film pasting accuracy, reduces costs, and improves benefits.

[0035] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0036] 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.

[0037] 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.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, the diffusion film assembly for the vehicle-mounted touch screen includes a diffusion film body 1, a double-sided adhesive layer 2 is provided on the upper surface of the diffusion film body 1, a release film layer 3 is provided on the upper surface of the double-sided adhesive layer 2, and the diffusion film body 1 includes a long strip of diffusion film base strip 11, and a plurality of circular key areas 12 are distributed on the diffusion film base strip 11.

[0039] In addition, a double-sided adhesive hollowing area 121 is provided on the back of the key area 12 .

[0040] like Figure 4 and Figure 5 As shown, the film roll includes a plurality of diffusion film components, and a plurality of positioning reading grooves 4 are provided on both side edges of the film roll.

[0041] It should be noted that the release film layer 3 is a PET release film. The positioning reading groove 4 is in an oblong shape.

[0042] The working mode of this embodiment is described below.

[0043] Since both sides of the roll film material are provided with positioning reading grooves 4, and the shape and position of the positioning reading grooves 4 are fixed, the automated machine identifies the position and shape of the diffusion film body 1 through the positioning reading grooves 4, thereby positioning the diffusion film body 1, and sucking the diffusion film body 1 with a suction head, and realizing the assembly and laminating process with the touch screen product. Since the roll film material adopts the roll material, the release film layer 3 is made into a whole sheet, and there is no need to tear off the bottom release film before assembly, which saves a lot of manpower and material resources, improves the efficiency and accuracy of the diffusion film laminating, reduces costs, and improves benefits.

[0044] like Figure 6 and Figure 7 As shown, the diffusion film assembly for the vehicle-mounted touch screen provided in Example 1 is further optimized, specifically, or, the positioning reading groove 4 is in a "T" shape. Or, the positioning reading groove 4 is in a cross shape.

[0045] The working mode of this embodiment is described below.

[0046] The use of the "T"-shaped or cross-shaped positioning reading groove 4 not only facilitates the automated machine to identify the position and shape of the diffusion membrane body 1 through the positioning reading groove 4, but also facilitates the automated machine to locate the inclination angle of the positioning reading groove 4 to prevent the position of the rolled film material from being offset.

[0047] like Figure 8 As shown, the diffusion film assembly for the vehicle-mounted touch screen provided in Example 1 or 2 is further optimized. Specifically, a plurality of positioning marks 31 are provided on the release film layer 3 .

[0048] It should be noted that the position of the positioning mark 31 corresponds to the key area 12 .

[0049] In addition, the positioning mark 31 is black.

[0050] The working mode of this embodiment is described below.

[0051] When the automated machine sucks up the diffusion membrane body 1 with the suction head, it will leave a positioning mark 31 on the release film layer 3. At this time, the automated machine visually inspects the left positioning mark 31. If it is found that the positioning mark 31 is blocked, it is determined that the diffusion membrane body 1 is not correctly sucked up. At this time, the automated machine alarms and notifies the staff to perform maintenance. The positioning mark 31 effectively improves the reliability of the rolled film material.

[0052] The terms "coupling" and "coupling" involved in the embodiments of the present application should be understood in a broad sense. For example, they may refer to a direct physical connection, or an indirect connection achieved through electronic devices, such as a connection achieved through resistors, inductors, capacitors or other electronic devices.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application 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 present application more thorough and comprehensive. Although the present application 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 specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A diffusion film assembly for a vehicle-mounted touch screen, characterized in that: The diffusion film assembly for a vehicle-mounted touch screen comprises a diffusion film body (1), a double-sided adhesive layer (2) is provided on the upper surface of the diffusion film body (1), a release film layer (3) is provided on the upper surface of the double-sided adhesive layer (2), and the diffusion film body (1) comprises a long diffusion film base strip (11), and a plurality of circular key areas (12) are distributed on the diffusion film base strip (11).

2. The diffusion film assembly for a vehicle-mounted touch screen according to claim 1, characterized in that: The back of the key area (12) is provided with a double-sided adhesive hollowed-out area (121).

3. A rolled film material, characterized in that: The rolled film material comprises the diffusion film assembly for a vehicle-mounted touch screen as claimed in claim 2, and both side edges of the rolled film material are provided with a plurality of positioning reading grooves (4).

4. The rolled film material according to claim 3, characterized in that: The release film layer (3) is a PET release film.

5. The rolled film material according to claim 3, characterized in that: The positioning reading groove (4) is in the shape of an oblong.

6. The rolled film material according to claim 3, characterized in that: The positioning reading groove (4) is in a "T" shape.

7. The rolled film material according to claim 3, characterized in that: The positioning reading groove (4) is in the shape of a cross.

8. The rolled film material according to claim 3, characterized in that: A plurality of positioning marks (31) are provided on the release film layer (3).

9. The rolled film material according to claim 8, characterized in that: The position of the positioning mark (31) corresponds to the key area (12).

10. The rolled film material according to claim 9, characterized in that: The positioning mark (31) is black.

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