Mylar traction structure capable of preventing adhesive residue, display equipment and communication device

Abstract

The utility model discloses a Mylar traction structure capable of preventing adhesive residue, a display device and a communication device, a double-sided adhesive layer and a laser-carved two-dimensional code in a Mylar body are arranged in a staggered manner, the double-sided adhesive layer is arranged outside and is shaped like a Chinese character'hui ', and the laser-carved two-dimensional code is arranged inside, so that the double-sided adhesive layer can be prevented from directly contacting with the laser-carved two-dimensional code; the double-faced adhesive tape layer is arranged between the main screen FPC and the double-faced adhesive tape layer, the hollowed-out gap used for preventing the residual adhesive from being adhered is formed between the double-faced adhesive tape layer and the double-faced adhesive tape layer, and after the traction mylar is torn off from the reinforcing steel plate of the main screen FPC, the hollowed-out gap greatly reduces contact of the residual adhesive to the laser-etched two-dimensional code, so that the surface of the laser-etched two-dimensional code is kept clean, scanning of the laser-etched code is not affected, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display, in particular to a traction mylar structure for preventing residual glue, a display device and a communication device. Background Art

[0002] At present, the main screen FPC of the mobile phone display module needs to pass through the middle frame and then be connected to the main board. The FPC hole position of the middle frame is small, and when the length of the main screen FPC is short, it is not conducive to the overall assembly of the machine. Therefore, it is required that a traction mylar be pasted on the back of the steel sheet of the main screen FPC before the display module is shipped, so as to guide the main screen FPC through the middle frame hole during the overall assembly of the machine.

[0003] Now, in order to trace the production information of the display module, it is also required to laser engrave a two-dimensional code (for storing supplier and production information) on the back of the steel sheet reinforcement of the main screen FPC. In this way, when the traction mylar is attached to the steel sheet reinforcement, it will cover the laser-engraved two-dimensional code. When the traction mylar is torn off after the overall assembly of the machine, residual glue will remain on the laser-engraved code, affecting the scanning of the two-dimensional code for production. This leads to rework of scraping glue, or the laser-engraved two-dimensional code fails, resulting in customer complaints and returns. In view of this, this case provides a design of the traction mylar of the display module to prevent the residual glue of the traction mylar from affecting the laser-engraved two-dimensional code on the steel sheet, improve the product quality and reduce customer complaints. Summary of the Utility Model

[0004] Based on this, in order to solve the above technical problems, a traction mylar structure for preventing residual glue is provided. By staggering the double-sided adhesive layer and the laser-engraved two-dimensional code in the mylar body, the double-sided adhesive layer is in a "return" shape outside, and the laser-engraved two-dimensional code is inside, which is beneficial to avoiding the direct contact between the double-sided adhesive layer and the laser-engraved two-dimensional code. And a hollow gap for preventing sticking of residual glue is provided between the double-sided adhesive layer. When the traction mylar is torn off from the reinforcement steel plate of the main screen FPC, the hollow gap greatly reduces the contact of the residual glue with the laser-engraved two-dimensional code, so that the laser-engraved two-dimensional code keeps the surface clean, does not affect the scanning of the laser-engraved code, and improves the product quality.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A traction mylar structure for preventing residual glue.

[0007] A mylar body, a double-sided adhesive layer and a laser-engraved two-dimensional code are provided at the head of the mylar body. The double-sided adhesive layer is in a "return" shape, the laser-engraved two-dimensional code is arranged in the middle hollow of the double-sided adhesive layer, and a hollow gap is arranged between the outer wall of the laser-engraved two-dimensional code and the inner wall of the double-sided adhesive layer.

[0008] As a preferred embodiment of the traction mylar structure for preventing residual glue provided by the present utility model, one side of the double-sided adhesive layer close to the mylar body is strongly adhesive, and the side of the double-sided adhesive layer away from the mylar body is weakly adhesive.

[0009] As a preferred embodiment of the traction mylar structure for preventing residual glue provided by the present utility model, the head of the mylar body is in a "convex" shape, and the inward shrinkage distance of the left and right sides of the head of the mylar body towards the middle is 1.2 mm to 1.5 mm.

[0010] As a preferred embodiment of the traction mylar structure for preventing residual glue provided by the present utility model, the manufacturing material of the mylar body is non-adhesive PET, its thickness is 0.1 mm to 0.2 mm, and its length is 45 mm to 55 mm.

[0011] As a preferred embodiment of the traction mylar structure for preventing residual glue provided by the present utility model, in the front view angle, the shape of the engraved space gap is a "square" shape, and the distance of the engraved space gap is 0.3 mm to 0.4 mm.

[0012] On the other hand, an embodiment of the present utility model further provides a display device, which includes the traction mylar structure for preventing residual glue as described above, and further includes a cover plate, a display module, and a backlight module in sequence from top to bottom.

[0013] As a preferred embodiment of the display device provided by the present utility model, the display module is provided with a main screen FPC that can be bent to the back of the backlight module. A reinforcing steel sheet is provided on one side of the tail end of the main screen FPC close to the backlight module. The side of the reinforcing steel sheet away from the main screen FPC is connected to the head of the traction mylar structure for preventing residual glue, and the tail end of the traction mylar structure for preventing residual glue is fixed to the back of the backlight module through a fixing member.

[0014] As a preferred embodiment of the display device provided by the present utility model, a tear handle is provided at one end of the fixing member extending out of the backlight module.

[0015] As a preferred embodiment of the display device provided by the present utility model, a green oil layer is provided in the bending area of the main screen FPC through a green oil process.

[0016] On another aspect, an embodiment of the present utility model further provides a communication device, which includes the display device as described above.

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

[0018] The traction mylar structure, display device and communication device for preventing residual glue provided by the present utility model stagger the double-sided adhesive layer and the laser-engraved two-dimensional code in the mylar body. The double-sided adhesive layer is in a "return" shape outside, and the laser-engraved two-dimensional code is inside, which helps to avoid the direct contact between the double-sided adhesive layer and the laser-engraved two-dimensional code. And a hollow gap for preventing residual glue adhesion is provided between the double-sided adhesive layer and the laser-engraved two-dimensional code. When the traction mylar is torn off from the reinforcing steel plate of the main screen FPC, the hollow gap greatly reduces the contact of the residual glue with the laser-engraved two-dimensional code, so that the surface of the laser-engraved two-dimensional code remains clean, does not affect the scanning of the laser-engraved code, and improves the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the solutions in the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Structural schematic diagram of the display device provided by the present utility model;

[0021] Figure 2 Structural schematic diagram of the display device provided by the present utility model (bending treatment of the main screen FPC);

[0022] Figure 3 Stacked structural schematic diagram of the display device provided by the present utility model;

[0023] Figure 4 Structural schematic diagram of the traction mylar structure for preventing residual glue provided by the present utility model (after bonding);

[0024] Figure 5 Structural schematic diagram of the traction mylar structure for preventing residual glue in the solid phase of the present utility model (before bonding).

[0025] The markings in the drawings are explained as follows:

[0026] Mylar body 100, double-sided adhesive layer 110, laser-engraved two-dimensional code 120, hollow gap 130; traction mylar structure for preventing residual glue 200; cover plate 300; display module 400; backlight module 500; main screen FPC 600; reinforcing steel sheet 700; fixing part 800, tear handle 810; green oil layer 900. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To enable those skilled in the art to better understand the solution of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] As described in the background art, in order to trace the production information of the display module, it is required to laser-engrave a two-dimensional code (for storing supplier and production information) on the back of the steel sheet reinforcement of the main screen FPC. In this way, when the traction mylar is attached to the steel sheet reinforcement, it will cover the laser-engraved two-dimensional code. When the traction mylar is torn off after the whole machine is assembled, glue will remain on the laser-engraved code, affecting the scanning of the two-dimensional code for production. This leads to rework of wiping glue, or the laser-engraved two-dimensional code fails, resulting in customer complaints and returns.

[0029] To solve this technical problem, the present utility model provides a traction mylar structure 200 for preventing residual glue.

[0030] Specifically, please refer to Figure 4-5 , the traction mylar structure for preventing residual glue specifically includes:

[0031] A mylar body 100, a double-sided adhesive layer 110 and a laser-engraved two-dimensional code 120 are provided at the head of the mylar body 100. The double-sided adhesive layer 110 is in a "return" shape, the laser-engraved two-dimensional code 120 is arranged in the middle hollow of the double-sided adhesive layer 110, and a hollow gap 130 is provided between the outer wall of the laser-engraved two-dimensional code 120 and the inner wall of the double-sided adhesive layer 110.

[0032] In the traction mylar structure for preventing residual glue provided by the present utility model, the double-sided adhesive layer 110 and the laser-engraved two-dimensional code 120 in the mylar body 100 are arranged错开, the double-sided adhesive layer 110 is in a "return" shape outside, and the laser-engraved two-dimensional code 120 is inside, which is beneficial to avoiding the direct contact between the double-sided adhesive layer 110 and the laser-engraved two-dimensional code 120, and a hollow gap 130 for preventing residual glue from sticking is provided between them. When the traction mylar body 100 is torn off from the reinforcement steel sheet 700 of the main screen FPC600, the hollow gap 130 greatly reduces the contact of residual glue with the laser-engraved two-dimensional code 120, so that the laser-engraved two-dimensional code 120 maintains the cleanliness of its surface, does not affect the scanning of the laser-engraved code, and improves the product quality.

[0033] The display device provided by the present utility model includes a traction mylar structure 200 for preventing residual glue, and further includes a cover plate 300, a display module 400 and a backlight module 500 in sequence from top to bottom.

[0034] By staggering the double-sided adhesive layer 110 and the laser-engraved QR code 120 in the mylar body 100, the double-sided adhesive layer 110 is in a "hui" shape on the outside and the laser-engraved QR code 120 is inside, which helps to prevent the double-sided adhesive layer 110 from directly contacting the laser-engraved QR code 120. And a hollow gap 130 for preventing residual glue from sticking is provided between the double-sided adhesive layer 110. After the mylar body 100 is pulled and removed from the reinforcing steel sheet 700 of the main screen FPC 600, the hollow gap 130 greatly reduces the contact of the residual glue with the laser-engraved QR code 120, so that the surface of the laser-engraved QR code 120 remains clean, does not affect the scanning of the laser-engraved code, and improves the product quality.

[0035] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings.

[0036] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments can be combined with each other.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0038] Embodiment 1

[0039] Please refer to Figure 4-5 , a traction mylar structure for preventing residual glue, which includes a mylar body 100. A double-sided adhesive layer 110 and a laser-engraved QR code 120 are provided at the head of the mylar body 100. The double-sided adhesive layer 110 is in a "hui" shape, and the laser-engraved QR code 120 is arranged in the middle hollow of the double-sided adhesive layer 110. A hollow gap 130 is provided between the outer wall of the laser-engraved QR code 120 and the inner wall of the double-sided adhesive layer 110.

[0040] Through the above structural design, the mylar body 100 is made of black, anti-static and non-sticky PET material, and this material can be Xing Younai XUN-PET102 with a thickness of 0.1 mm. A double-sided adhesive layer 110 is provided below the mylar body 100. The size of the double-sided adhesive layer 110 is set in a "hui" shape, the outer side is consistent with the shape of the reinforcing steel sheet 700, and the inner side is the laser-engraved QR code 120. At the same time, the distance of the hollow gap 130 between the two is 0.3 - 0.4 mm. The double-sided adhesive layer 110 has strong adhesion on one side and weak adhesion on the other side. The side close to the mylar body 100 has strong adhesion, and the side close to the reinforcing steel sheet 700 of the main screen FPC 600 has weak adhesion. The model of the double-sided adhesive layer 110 can be: Zhixing H2651R.

[0041] By staggering the double-sided adhesive layer 110 and the laser-engraved two-dimensional code 120 in the mylar body 100, the double-sided adhesive layer 110 is in a "hui" character shape on the outside and the laser-engraved two-dimensional code 120 is inside, which helps to avoid the direct contact between the double-sided adhesive layer 110 and the laser-engraved two-dimensional code 120. And a hollow gap 130 for preventing the adhesion of residual glue is provided between the double-sided adhesive layer 110. When the mylar body 100 is torn off from the reinforcing steel sheet 700 of the main screen FPC 600, the hollow gap 130 greatly reduces the contact of the residual glue with the laser-engraved two-dimensional code 120, so that the laser-engraved two-dimensional code 120 keeps the surface clean, does not affect the scanning of the laser-engraved code, and improves the product quality.

[0042] Specifically, one side of the double-sided adhesive layer 110 close to the mylar body 100 has strong adhesion, and the side of the double-sided adhesive layer 110 far from the mylar body 100 has weak adhesion.

[0043] Through the above structural design, the double-sided adhesive layer 110 has strong adhesion on one side and weak adhesion on the other side. The side close to the mylar body 100 has strong adhesion, and the side close to the reinforcing steel sheet 700 of the main screen FPC 600 has weak adhesion. The model of the double-sided adhesive layer 110 can be: Zhixing H2651R.

[0044] Specifically, the head of the mylar body 100 is in a "convex" shape, and the distances of the left and right sides of the head of the mylar body 100 shrinking inward to the middle are both 1.2 mm to 1.5 mm.

[0045] Through the above structural design, the mylar body 100 has a "convex" head, the protruding and shrinking distance is 1.2 to 1.5 mm, the surface is matte, and the total length of the mylar is 45 to 55 mm.

[0046] Specifically, the manufacturing material of the mylar body 100 is non-adhesive PET, its thickness is 0.1 mm to 0.2 mm, and its length is 45 mm to 55 mm.

[0047] Through the above structural design, the mylar body 100 is made of black, anti-static and non-adhesive PET material, and this material can be Xingyouna XUN-PET102 with a thickness of 0.1 mm.

[0048] Specifically, in the front view angle, the shape of the hollow gap 130 is a "square" shape, and the distance of the hollow gap 130 is 0.3 mm to 0.4 mm.

[0049] Through the above structural design, a double-sided adhesive layer 110 is provided below the mylar body 100. The size of the double-sided adhesive layer 110 is set in a "hui" shape. The outer side is consistent with the shape of the reinforcing steel sheet 700, and the inner side is a laser-engraved two-dimensional code 120. At the same time, the distance of the engraved space gap 130 between the two is 0.3 - 0.4 mm. The engraved space gap 130 greatly reduces the contact of residual glue with the laser-engraved two-dimensional code 120, so that the laser-engraved two-dimensional code 120 maintains the cleanliness of its surface, does not affect the scanning of the laser-engraved code, and improves the product quality.

[0050] Embodiment 2

[0051] The traction mylar structure for preventing residual glue provided in Embodiment 1 is further optimized. Specifically, as Figure 1-5 shown, the embodiment of the present utility model further provides a display device, which includes the traction mylar structure 200 for preventing residual glue as described above, and further includes a cover plate 300, a display module 400 and a backlight module 500 in sequence from top to bottom.

[0052] Specifically, the display module 400 is provided with a main screen FPC 600 that can be bent to the back of the backlight module 500. A reinforcing steel sheet 700 is provided on one side of the tail end of the main screen FPC 600 close to the backlight module 500. The side of the reinforcing steel sheet 700 away from the main screen FPC 600 is connected to the head of the traction mylar structure 200 for preventing residual glue, and the tail end of the traction mylar structure 200 for preventing residual glue is fixed to the back of the backlight module 500 through a fixing member 800.

[0053] Through the above structural design, in this design, the cover plate 300 is a protective glass. The display module 400 is used to set the main screen FPC 600 and bend the main screen FPC 600 to the back of the backlight module 500. The reinforcing steel sheet 700 in the main screen FPC 600 is bonded to the weakly sticky side in the double-sided adhesive layer 110. Since there is no glue in the middle of the double-sided adhesive layer 110, no residual glue phenomenon of the laser-engraved two-dimensional code 120 will occur during bonding. Finally, the traction mylar structure 200 for preventing residual glue is adhered to the backlight module 500 through the fixing member 800, and the fixing member 800 is a fixing tape. By staggering the double-sided adhesive layer 110 and the laser-engraved two-dimensional code 120 in the mylar body 100, the double-sided adhesive layer 110 is in a "hui" shape on the outside and the laser-engraved two-dimensional code 120 is inside, which is beneficial to avoid the direct contact between the double-sided adhesive layer 110 and the laser-engraved two-dimensional code 120, and an engraved space gap 130 for preventing the adhesion of residual glue is provided between them. When the traction mylar body 100 is torn off from the reinforcing steel sheet 700 of the main screen FPC 600, the engraved space gap 130 greatly reduces the contact of residual glue with the laser-engraved two-dimensional code 120, so that the laser-engraved two-dimensional code 120 maintains the cleanliness of its surface, does not affect the scanning of the laser-engraved code, and improves the product quality.

[0054] Embodiment 3

[0055] Further optimize the traction mylar structure for preventing residual glue provided in Embodiment 1 or 2, as Figure 1-5 shown, a tear handle 810 is provided at one end of the fixing member 800 extending out of the backlight module 500.

[0056] Through the above structural design, the tear handle 810 is used to facilitate the removal of the fixing member 800, helping to smoothly remove the traction mylar structure 200 for preventing residual glue.

[0057] Specifically, a green oil layer 900 is provided in the bending area of the main screen FPC 600 through the green oil process.

[0058] Through the above structural design, the main screen FPC 600 is treated with the green oil process in the connector bending area to improve its flexibility.

[0059] On the other hand, an embodiment of the present invention also provides a communication device, which includes a display device as described above.

[0060] Through the above structural design, by staggering the double-sided adhesive layer 110 and the laser-engraved two-dimensional code 120 in the mylar body 100, the double-sided adhesive layer 110 is in a "return" shape outside, and the laser-engraved two-dimensional code 120 is inside, which is beneficial to avoid the direct contact between the double-sided adhesive layer 110 and the laser-engraved two-dimensional code 120, and a hollow gap 130 for preventing residual glue from sticking is provided between the double-sided adhesive layer 110. When the traction mylar body 100 is removed from the reinforcing steel sheet 700 of the main screen FPC 600, the hollow gap 130 greatly reduces the contact of the residual glue with the laser-engraved two-dimensional code 120, so that the laser-engraved two-dimensional code 120 maintains the cleanliness of its surface, does not affect the scanning of the laser-engraved code, and improves the product quality.

[0061] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A pull-mylar construction for preventing adhesive residue, characterized by, It includes: A mylar body (100), a double-sided adhesive layer (110) and a laser-engraved QR code (120) are provided at the head of the mylar body (100). The double-sided adhesive layer (110) is in a "return" shape. The laser-engraved QR code (120) is arranged at the middle hollow part of the double-sided adhesive layer (110). There is a hollow gap (130) between the outer wall of the laser-engraved QR code (120) and the inner wall of the double-sided adhesive layer (110).

2. The pull-mylar construction for preventing the adhesive residue according to claim 1, wherein One side of the double-sided adhesive layer (110) close to the mylar body (100) has strong adhesion, and the side of the double-sided adhesive layer (110) far from the mylar body (100) has weak adhesion.

3. The pull-mylar construction for preventing the adhesive residue according to claim 2, wherein The head of the mylar body (100) is in a "convex" shape, and the inward contraction distance of both the left and right sides of the head of the mylar body (100) towards the middle is 1.2 mm to 1.5 mm.

4. The Mylar structure for preventing residual adhesive traction according to claim 1, characterized in that, The manufacturing material of the mylar body (100) is non-adhesive PET, its thickness is 0.1 mm to 0.2 mm, and its length is 45 mm to 55 mm.

5. The pull-mylar construction for preventing the adhesive residue according to claim 1, wherein In the front view angle, the shape of the hollow gap (130) is a "square" shape, and the distance of the hollow gap (130) is 0.3 mm to 0.4 mm.

6. A display device, characterized by It includes the traction mylar structure for preventing residual glue according to any one of claims 1-5, and further includes a cover plate (300), a display module (400) and a backlight module (500) in sequence from top to bottom.

7. The display device of claim 6, wherein, The display module (400) is provided with a main screen FPC (600) that can be bent to the back of the backlight module (500). A reinforcing steel sheet (700) is provided on one side of the tail end of the main screen FPC (600) close to the backlight module (500). The side of the reinforcing steel sheet (700) far from the main screen FPC (600) is connected to the head of the traction mylar structure for preventing residual glue (200). The tail end of the traction mylar structure for preventing residual glue (200) is fixed to the back of the backlight module (500) through a fixing member (800).

8. The display device of claim 7, wherein, One end of the fixing member (800) extending out of the backlight module (500) is provided with a tear handle (810).

9. The display device of claim 8, wherein, The bending area of the main screen FPC (600) is provided with a green oil layer (900) through a green oil process.

10. A communication device, comprising: It includes a display device according to any one of claims 6-9.

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