Screen double faced adhesive tape, screen assembly and electronic equipment

Abstract

The utility model provides a screen double-faced adhesive tape, a screen assembly and electronic equipment. The screen double-faced adhesive tape comprises a bottom film, a double-faced adhesive tape and a release film, wherein the double-sided adhesive tape is positioned between the bottom film and the release film, and the double-sided adhesive tape, the bottom film and the release film are mutually adhered together; a pouring hole is formed in the top of the double-faced adhesive tape and is used for corresponding to and communicating with the adhesive pouring hole; the double-faced adhesive tape is of a split structure and at least comprises a left side part, a right side part and an upper side part located between the left side part and the right side part, a separation gap is formed between every two adjacent parts, and the separation gaps are communicated with the pouring holes in a one-to-one correspondence mode. According to the utility model, the double-faced adhesive tape is broken into a split type through the separation gap, so that wastes generated in the production process of the double-faced adhesive tape can be effectively reduced, the cost is reduced, the double-faced adhesive tape is also provided with the pouring hole, and the sealant in the sealant pouring hole can flow into the breaking line through the matching structure among the sealant pouring hole, the pouring hole and the breaking line, so that the sealing effect is improved. And the broken line is sealed to ensure the sealing performance of the double-sided adhesive tape.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, and in particular to a screen double-sided adhesive, a screen assembly and electronic equipment. Background Art

[0002] Currently, electronic devices such as mobile phone screen assemblies usually use spray glue, glue filling holes, and "integrated" screen double-sided tape to connect with each other to waterproof and seal the screen assemblies.

[0003] However, the auxiliary material processing of this "integrated" screen back adhesive is to use a knife die or laser cutting method on a whole large piece of double-sided adhesive to process it into a double-sided adhesive of the required shape. It is to use a knife die cutting or laser cutting method on a large piece of double-sided adhesive. The one-piece double-sided adhesive processing is directly cut into the required shape, and the remaining part is waste, while the upper, left and right sides of the spliced ​​double-sided adhesive are processed separately on a large piece of double-sided adhesive, and finally the three pieces of double-sided adhesive are spliced ​​into the double-sided adhesive of the required shape. The scrapped material of the whole double-sided adhesive is much less than that of the one-piece double-sided adhesive processing, which can achieve the purpose of cost saving.

[0004] However, if the double-sided tape used for split splicing is directly used, it will easily affect the waterproof sealing effect. Utility Model Content

[0005] The present application is made based on the inventor's discovery and understanding of the following problems and facts: the cost of the "integrated" screen double-sided tape is relatively high, and the double-sided tape formed by splicing is likely to affect the waterproof sealing effect.

[0006] The utility model aims to solve one of the above technical problems at least to a certain extent.

[0007] According to a first aspect of the present disclosure, a screen double-sided adhesive is provided, comprising: a base film, a double-sided adhesive and a release film;

[0008] The double-sided adhesive tape is located between the base film and the release film, and is attached to the base film and the release film.

[0009] A pouring hole is provided on the top of the double-sided adhesive tape, and the pouring hole is used to correspond to and communicate with the glue injection hole;

[0010] The double-sided adhesive tape is a split structure, which at least includes a left part, a right part and an upper part located between the left part and the right part. There is a separation gap between each two adjacent parts, and the separation gaps are connected to the casting holes one by one.

[0011] In some embodiments, an avoidance gap is provided between the pouring hole and the glue injection hole, and a projection of a communication position between the separation gap and the pouring hole in the length direction of the shell falls in the glue injection hole.

[0012] In some embodiments, the width of the separation gap is between 0.05 mm and 0.1 mm.

[0013] In some embodiments, the separation gap is a bent structure having multiple corners.

[0014] In some embodiments, the release film is provided with a plurality of positioning holes, and the positioning holes are used to adapt to and correspond to the positioning posts of the screen double-sided adhesive mounting fixture.

[0015] In some embodiments, the release film has a breaking line, and the breaking line extends a preset distance along the length direction of the release film.

[0016] In some embodiments, the release film is a PE release film or a PET release paper or an OPP release paper.

[0017] According to an embodiment of the second aspect of the utility model, a screen assembly is provided, comprising: a housing, a display screen and the aforementioned screen double-sided adhesive tape;

[0018] The shell and the display screen are connected by gluing with the double-sided adhesive in the screen double-sided adhesive.

[0019] In some embodiments, an avoidance gap is provided between the pouring hole 4 and the glue injection hole 9 .

[0020] According to an embodiment of the third aspect of the present utility model, there is provided an electronic device, comprising:

[0021] The aforementioned screen assembly.

[0022] According to the screen double-sided tape of the embodiment of the utility model, the double-sided tape is interrupted by the separation gap to become a split structure. Compared with the integrated double-sided tape structure, less waste is generated, which can effectively save costs. The double-sided tape is also provided with a pouring hole that is adapted and corresponding to the glue hole of the shell, and the separation gap is connected with the pouring hole. When the sealant is used to pour the glue hole, the sealant will enter the pouring hole and then enter the separation gap from the pouring hole. At the same time, the separation gap is sealed to ensure the sealing and waterproof performance of the double-sided tape.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram according to an embodiment of the utility model;

[0025] Figure 2 It is a structural schematic diagram of a double-sided adhesive tape according to an embodiment of the utility model;

[0026] Figure 3 According to the utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 4 According to the utility model Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0028] Figure 5 It is a schematic structural diagram of a release film according to the utility model;

[0029] Figure 6 It is a structural schematic diagram according to another embodiment of the utility model

[0030] Figure 7 According to the utility model Figure 6 Schematic diagram of the enlarged structure at point C in the middle.

[0031] Reference numerals

[0032] 1. Base film; 2. Double-sided tape; 21. Left part; 22. Top part; 23. Right part; 3. Release film; 4. Casting hole; 5. Separation gap; 6. Breaking line; 7. Positioning hole; 8. Shell; 9. Glue filling hole. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] Throughout the specification and claims, the following terms have at least the meanings explicitly associated herein, unless the context dictates otherwise. The meanings identified below do not necessarily limit the terms, but merely provide illustrative examples of the terms.

[0035] In the description of the utility model, the phrase "in one embodiment" does not necessarily refer to the same embodiment, although it may refer to the same embodiment. Similarly, the phrase "in some embodiments" as used herein, when used multiple times, does not necessarily refer to the same embodiment, although it may refer to the same embodiment. As used herein, the term "or" is an inclusive "or" operator and is equivalent to the term "and / or", unless the context clearly dictates otherwise. The term "based on" is not exclusive and allows for additional factors not described, unless the context clearly dictates otherwise. The word "exemplary" means "used as an example, instance or illustration" in this article. Any embodiment described as "exemplary" herein is not necessarily interpreted as being superior or superior to other embodiments. The scope of the utility model is limited only by the scope of the appended claims, and any examples set forth in this specification are not intended to be limiting, but only to set forth some of the many possible embodiments of the utility model claimed for protection. The various embodiments provided by the utility model should not be interpreted as limiting the scope of protection of the utility model.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0040] Electronic devices are an indispensable part of people's convenient lives. Generally, electronic devices are equipped with display screens to provide information to users.

[0041] On the one hand, the double-sided adhesive tape in the prior art usually adopts the solutions of spraying glue, filling glue holes and connecting the "integrated" double-sided adhesive tape to each other to waterproof and seal the screen assembly, so as to ensure the waterproof performance of the screen assembly and improve the user experience. However, during the production process of the "integrated" double-sided adhesive tape, it is cut from a rectangular plate. During the cutting process, only the top and two sides are retained for pasting the display screen, and the rest are discarded as waste, resulting in high production costs. The split double-sided adhesive tape structure will leave a gap at the split position, affecting the waterproof sealing performance of the screen assembly.

[0042] Embodiment 1

[0043] Based on this, Figure 1-Figure 7 As shown, the screen double-sided adhesive according to the embodiment of the utility model is used to stick the housing 8 and the display screen of the electronic device. The top of the housing 8 has glue injection holes 9 at both ends along the width direction of the housing 8. The glue injection holes 9 are used to inject sealant. The screen double-sided adhesive includes:

[0044] Base film 1, double-sided adhesive 2 and release film 3;

[0045] The double-sided adhesive tape 2 is located between the base film 1 and the release film 3, and is attached to the base film 1 and the release film 3.

[0046] A pouring hole 4 is provided on the top of the double-sided adhesive tape 2, and the pouring hole 4 is used to correspond to and communicate with the glue injection hole 9;

[0047] The double-sided adhesive tape 2 is a split structure, which at least includes a left part 21, a right part 23 and an upper part 22 located between the left part 21 and the right part 23. There is a separation gap 5 between each two adjacent parts, and the separation gaps 5 are connected to the casting holes 4 one by one.

[0048] Specifically, the screen double-sided tape is composed of a base film 1, a double-sided tape 2 and a release film 3. When the shell 8 and the display screen need to be pasted, the base film 1 can be removed first, the double-sided tape 2 and the release film 3 can be aligned on the shell 8, one surface of the double-sided tape 2 can be pasted to the shell 8, and then the release film 3 can be removed, and the display screen can be pasted to the other surface of the double-sided tape 2 to complete the pasting operation of the shell 8 and the display screen.

[0049] The shape of the double-sided adhesive tape 2 corresponds to the areas to be pasted on the top and two sides of the display screen, and can be a frame structure with a notch at the bottom, so that the double-sided adhesive tape 2 can be pasted to the display screen and the housing 8 without affecting the normal operation of the display screen.

[0050] Two pouring holes 4 can be provided at both ends of the top of the double-sided tape 2 along the width direction. The positions of the pouring holes 4 correspond to the glue injection holes 9 of the shell 8. The size and shape of the pouring holes 4 are adapted to the glue injection holes 9, so that when the operator injects glue through the glue injection holes 9, the sealant can overflow from the glue injection holes 9 and enter the pouring holes 4.

[0051] The two ends of the separation gap 5 are respectively on the inner side of the pouring hole 4 and the double-sided tape 2, and can divide the double-sided tape 2. Two separation gaps 5 can be correspondingly set with the two pouring holes 4. The two separation gaps 5 respectively disconnect the upper left corner and the upper right corner of the double-sided tape 2, so that the double-sided tape 2 can be transformed into a split frame structure composed of a left part 21, a top part 22 and a right part 23. When this split structure is used to process and produce each part, compared with an integrated frame structure, the middle part of the rectangular raw material will not become waste, which can be more convenient for production, and greatly reduce the waste generated in the cutting production, effectively saving costs.

[0052] Moreover, the double-sided tape 2 also has a pouring hole 4, and the separation gap 5 is connected to the pouring hole 4, and the pouring hole 4 corresponds to and adapts to the glue injection hole 9, so that the sealant in the normal glue injection process can enter into the separation gap 5 from the pouring hole 4, and then the separation gap 5 can be sealed, thereby ensuring the sealing of the double-sided tape 2 and the waterproof sealing performance of the screen assembly.

[0053] According to the screen double-sided tape of the embodiment of the utility model, the double-sided tape 2 is interrupted by the separation gap 5 to become a split structure. Compared with the integrated double-sided tape 2 structure, less waste is generated, which can effectively save costs. The double-sided tape 2 is also provided with a pouring hole 4 that is adapted and corresponding to the glue hole 9 of the shell 8, and the separation gap 5 is connected with the pouring hole 4. When the sealant is used to pour the glue hole 9, the sealant will enter the pouring hole 4, and then enter the separation gap 5 from the pouring hole 4, and at the same time, the separation gap 5 is sealed to ensure the sealing and waterproof performance of the double-sided tape 2.

[0054] In some embodiments, an avoidance gap is provided between the pouring hole 4 and the glue injection hole 9 , and the projection of the communication position between the separation gap 5 and the pouring hole 4 in the length direction of the shell 8 falls in the glue injection hole 9 .

[0055] Specifically, the pouring hole 4 can be a semicircular shape that matches the glue injection hole 9. The avoidance gap reserved between the pouring hole 4 and the glue injection hole 9 can prevent the pouring hole 4 from affecting the normal glue injection operation of the glue injection hole 9. The connection point between the separation gap 5 and the pouring hole 4 does not exceed the area where the glue injection hole 9 is located in the width direction of the shell 8, that is, the connection position between the separation gap 5 and the pouring hole 4, the projection of the separation gap 5 and the pouring hole 4 in the length direction of the shell 8 will fall in the glue injection hole 9, which can ensure that the sealant overflowing from the glue injection hole 9 can smoothly enter the separation gap 5 and seal the separation gap 5.

[0056] In some embodiments, the width of the avoidance gap is 0.5 mm.

[0057] Specifically, the width of the avoidance gap may be 0.5 mm, which can prevent the double-sided adhesive tape 2 from blocking the glue filling hole 9 due to production errors and / or assembly errors, and can also prevent the pouring hole 4 from being too large, thereby ensuring that the pouring hole 4 can be quickly filled.

[0058] In some embodiments, the width of the separation gap 5 is between 0.05 mm and 0.1 mm.

[0059] Specifically, the width of the separation gap 5 is between 0.05 mm and 0.1 mm, and can be 0.05 mm. This can prevent the width from being too large, which may result in the sealant being unable to completely fill the gap and thus failing to achieve a sealing effect. It can also prevent the width from being too small, which may result in the double-sided tape 2 overlapping due to assembly errors during splicing, i.e., sticking to each other.

[0060] In some embodiments, the separation gap 5 is a bent structure with multiple corners.

[0061] Specifically, the bending structure can be an "S"-shaped or "N"-shaped structure. This bending structure with multiple corners can increase the length of the separation gap 5, thereby increasing the sealing path of the separation gap 5, accommodating more sealant, and enhancing its waterproof sealing reliability.

[0062] In some embodiments, the double-sided tape 2 is made of 3M, Anyone or tesa.

[0063] Specifically, the double-sided adhesive tape 2 can effectively adhere the housing 8 to the display screen.

[0064] In some embodiments, the release film 3 is provided with a plurality of positioning holes 7 , and the positioning holes 7 are used to adapt to and correspond to the positioning posts of the screen double-sided adhesive mounting fixture.

[0065] Specifically, there can be three positioning blocks, and the three positioning holes 7 are not in the same straight line. The shape and size of the positioning holes 7 are adapted to the positioning column, and the position corresponds to the positioning column. When the double-sided tape 2 is pasted, the positioning holes 7 can be aligned with the positioning columns of the mounting fixture, so that the release film 3 can be in the correct position, and then the double-sided tape 2 can be in the correct position.

[0066] In some embodiments, the release film 3 has a breaking line 6 , and the breaking line 6 extends a preset distance along the length direction of the release film 3 .

[0067] Specifically, the breaking line 6 can extend from the top position of the release film 3 to the circular hole in the middle area of ​​the release film 3. The function of the breaking line 6 is to facilitate the tearing off of the release film 3. If the release film 3 is not broken and the entire surface is in contact with the double-sided adhesive 2, the operator will face greater resistance to tearing it off. If the release film 3 is broken, the resistance to tearing it off will be smaller, which can facilitate the operation of the operator.

[0068] In some embodiments, the release film 3 is a PE release film 3 or a PET release paper or an OPP release paper.

[0069] The release film 3 can protect the double-sided adhesive tape 2 when the double-sided adhesive tape 2 is not in use, can provide positioning for the double-sided adhesive tape 2 when the double-sided adhesive tape 2 is in use, and can be torn off conveniently and quickly.

[0070] Among them, the specific operation of attaching the double-sided tape to the screen requires first removing the bottom film 1 of the double-sided tape of the screen, and placing the double-sided tape of the screen on a special positioning jig. At this time, the double-sided tape 2 is positioned through the positioning holes 7 on the release film 3 and the positioning columns on the positioning jig. Pressing the suction switch of the positioning jig can fix the double-sided tape 2 and the release film 3, and then placing the shell 8 on the jig. After positioning the shell 8 through the shape of the shell 8 and the jig, after completing their respective positioning, place the shell 8 and the double-sided tape 2 on a special pressing jig, press the double-sided tape 2, and make the double-sided tape 2 and the shell 8 firmly bonded.

[0071] Embodiment 2

[0072] Based on the attached Figure 6 -Attached Figure 7 As shown, the embodiment of the present application also provides a screen assembly, including:

[0073] Shell 8, display screen and the aforementioned screen double-sided adhesive tape;

[0074] The shell and the display screen are connected by bonding with the double-sided adhesive tape in the screen double-sided adhesive tape.

[0075] Specifically, the display screen and the shell 8 are glued together by the double-sided adhesive tape 2 in the double-sided adhesive tape for screen proposed in the present application, which can ensure the sealing performance of the screen assembly while effectively saving costs.

[0076] Embodiment 3

[0077] An embodiment of the present application also provides an electronic device, including: the aforementioned screen assembly.

[0078] Specifically, the electronic device uses the double-sided adhesive tape in the screen double-sided adhesive to stick the shell and the display screen in the screen assembly. The good waterproof sealing performance of the screen assembly can enable the electronic device to provide customers with a good user experience and can also effectively save costs.

[0079] Among them, in the process of sticking the display screen to the shell 8, first spray glue on the shell 8 and then dispense glue on the display screen, mainly in the earpiece area at the top of the display screen, specifically the length between the two glue holes 9 at the top of the shell 8, in order to prevent the screen panel from entering the liquid, then apply glue on the adhesive surface around the shell 8, the glue material is hot melt adhesive, and the display screen and the shell 8 are fitted in time to prevent the hot melt adhesive from solidifying. In order to ensure that the display screen and the shell 8 are firmly bonded and the double-sided adhesive of the screen is fully activated, the screen assembly is immediately pressed after the screen is installed, and the excess glue of the screen assembly is wiped off after pressing to ensure the exquisiteness of the appearance. After wiping the glue, the screen assembly needs to be left to stand for 4 hours to allow the glue to fully solidify, and then the screen assembly after standing is glued to complete the sealing and pasting operation.

[0080] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0081] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A double-sided adhesive tape for a screen, used for pasting the housing and display screen of an electronic device, wherein the top of the housing has glue injection holes at both ends along the width direction of the housing, and the glue injection holes are used for injecting sealant, characterized in that: The screen double-sided adhesive comprises: Base film, double-sided adhesive tape and release film; Wherein, the double-sided adhesive tape is located between the base film and the release film, and is attached to the base film and the release film. A pouring hole is provided on the top of the double-sided adhesive tape, and the pouring hole is used to correspond to and communicate with the glue injection hole; The double-sided adhesive tape is a split structure, which at least includes a left part, a right part and an upper part located between the left part and the right part. There is a separation gap between each two adjacent parts, and the separation gaps are connected to the casting holes one by one.

2. The screen double-sided adhesive according to claim 1, characterized in that: The separation gap is a bent structure with multiple corners in its extending direction.

3. The screen double-sided adhesive according to claim 2, characterized in that: The width of the separation gap is between 0.05 mm and 0.1 mm.

4. The screen double-sided adhesive according to claim 1, characterized in that: The release film is provided with a plurality of positioning holes, and the positioning holes are used to adapt to and correspond to the positioning columns of the screen double-sided adhesive mounting fixture.

5. The screen double-sided adhesive according to claim 1, characterized in that: The release film has a breaking line, and the breaking line extends a preset distance along the length direction of the release film.

6. The screen double-sided adhesive according to claim 1, characterized in that: The release film is a PE release film or a PET release paper or an OPP release paper.

7. A screen assembly, characterized in that: include: A housing, a display screen and a double-sided adhesive tape for the screen as claimed in any one of claims 1 to 6; The top of the shell has glue injection holes at both ends along the width direction of the shell; The double-sided adhesive tape in the screen double-sided adhesive tape is located between the shell and the display screen, and is respectively bonded and connected to the shell and the display screen.

8. The screen assembly according to claim 7, characterized in that: An avoidance gap is arranged between the pouring hole and the glue injection hole.

9. The screen assembly according to any one of claims 7 or 8, characterized in that: The communication position between the separation gap and the pouring hole corresponds to the glue injection hole along the length direction of the shell.

10. An electronic device, characterized in that: include: A screen assembly as described in any one of claims 7 to 9.

Images