Foam double-sided adhesive tape and display module

Abstract

The utility model provides a foam double-sided adhesive tape and a display module, the foam double-sided adhesive tape comprises a foam layer, the upper surface and the lower surface of the foam layer are respectively provided with a plurality of grooves arranged at intervals, an adhesive layer is arranged in each groove, and the thickness of each adhesive layer is not smaller than the depth of each groove. By means of the arrangement, after the two faces of the foam are bonded, bubbles in the bonding face of the adhesive layer and other modules (such as a display screen and a machine shell) can be discharged from the position where the adhesive layer is not arranged, the bulging phenomenon caused by the fact that the two faces of the foam are bonded is avoided, and the quality of the display module is further improved; the partial foam layer structures between the multiple adhesive layers arranged at intervals can prevent collapse between the adjacent adhesive layers.

Description

Technical Field

[0001] The utility model relates to the technical field of foam, in particular to a foam double-sided adhesive display module. Background Art

[0002] In the field of display technology, double-sided foam adhesive is often used to bond the display screen to the housing, and it has a certain shockproof effect. When the display screen is bonded to the housing with foam, if the foam is wide, it is easy to generate bubbles at the bonding point of the double-sided adhesive, which cannot be discharged and thus cause bulging, resulting in poor appearance, affecting product quality and actual experience. Utility Model Content

[0003] The utility model aims to solve the shortcomings of the prior art and proposes a foam double-sided adhesive display module.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] In a first aspect, an embodiment of the utility model provides a foam double-sided adhesive, comprising: a foam layer, wherein the upper and lower surfaces of the foam layer both comprise a plurality of grooves arranged at intervals, and an adhesive layer is provided in each of the grooves, and the thickness of the adhesive layer is not less than the depth of the groove.

[0006] As a preferred improvement of the present invention, a first release film is provided on the upper surface of the foam layer.

[0007] As a preferred improvement of the present invention, a second release film is provided on the lower surface of the foam layer.

[0008] As a preferred improvement of the present invention, a first film tearing handle is provided on any side edge of the first release film.

[0009] As a preferred improvement of the present invention, a second film tearing handle is provided on any side edge of the second release film.

[0010] As a preferred improvement of the present invention, the foam layer is arranged in a ring shape.

[0011] As a preferred improvement of the present invention, the adhesive layer is one of double-sided adhesive tape, 3M nano adhesive, optical adhesive or pressure-sensitive adhesive.

[0012] As a preferred improvement of the present invention, the depth of the groove is 0.1 mm, and the width of the groove is 5 mm.

[0013] As a preferred improvement of the present invention, the foam layer is made of foamed polyethylene.

[0014] In a second aspect, an embodiment of the utility model further provides a display module, including: a display screen, a housing, and a foam double-sided adhesive as described in the embodiment of the utility model, wherein the foam double-sided adhesive is used to adhere the display screen and the housing.

[0015] Compared with the prior art, the advantages and positive effects of the utility model are:

[0016] In the utility model, a plurality of spaced grooves are arranged on the upper and lower surfaces of the foam layer, and an adhesive layer is arranged in the groove. Compared with the traditional foam double-sided adhesive with full-surface double-sided adhesive, after the foam double-sided adhesive is bonded, the bubbles in the bonding surface between the adhesive layer and other modules (such as display screen, housing, etc.) can be discharged from the place where the adhesive layer is not arranged, thereby avoiding the bulging phenomenon of the foam double-sided adhesive and further improving the quality of the display module; at the same time, since the thickness of the adhesive layer is not less than the depth of the groove, it is generally set to be the same as the depth of the groove, and the partial foam layer structure between the plurality of spaced adhesive layers can prevent the collapse between adjacent adhesive layers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the side view structure of a double-sided foam adhesive that is easy to discharge bubbles provided by the utility model;

[0018] Figure 2 A schematic diagram of the side view structure of a double-sided foam adhesive that is easy to discharge bubbles provided by the utility model;

[0019] Figure 3 The utility model provides a schematic top view of the double-sided adhesive foam which is easy to discharge bubbles. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] The utility model embodiment provides a technical solution:

[0023] First, refer to Figure 1-3The utility model provides a foam double-sided adhesive, including: a foam layer 100, the upper and lower surfaces of the foam layer 100 both include a plurality of grooves 110 arranged at intervals, and an adhesive layer 200 is provided in each of the grooves 110, and the thickness of the adhesive layer 200 is not less than the depth of the groove 110.

[0024] In the utility model, a plurality of spaced grooves are arranged on the upper and lower surfaces of the foam layer, and an adhesive layer is arranged in the groove. Compared with the traditional foam double-sided adhesive with full-surface double-sided adhesive, after the foam double-sided adhesive is bonded, the bubbles in the bonding surface between the adhesive layer and other modules (such as display screen, housing, etc.) can be discharged from the place where the adhesive layer is not arranged, thereby avoiding the bulging phenomenon of the foam double-sided adhesive and further improving the quality of the display module; at the same time, since the thickness of the adhesive layer is not less than the depth of the groove, it is generally set to be the same as the depth of the groove, and the partial foam layer structure between the plurality of spaced adhesive layers can prevent the collapse between adjacent adhesive layers.

[0025] As a preferred improvement of the present invention, refer to Figure 1-2 A first release film 300 is provided on the upper surface of the foam layer 100 .

[0026] As a preferred improvement of the present invention, refer to Figure 1-2 A second release film 400 is provided on the lower surface of the foam layer 100 .

[0027] Among them, the bonding force between the first release film and the adhesive layer is smaller than the bonding force between the adhesive layer and the foam layer; the bonding force between the second release film and the adhesive layer is smaller than the bonding force between the adhesive layer and the foam layer. The above arrangement can ensure that the first release film and the second release film are easy to remove when the foam is double-sidedly glued, and the adhesive layer is not easy to tear off.

[0028] As a preferred improvement of the present invention, refer to Figure 3 A first film tearing handle 310 is provided on any side of the first release film 300. The above arrangement makes it easy to tear off the first release film 300 by pulling the first film tearing handle 310 when using a foam double-sided adhesive.

[0029] As a preferred improvement of the present invention, refer to Figure 3 A second tearing handle 410 is provided on any side of the second release film 400. The above arrangement makes it easy to tear off the second release film 400 by pulling the second tearing handle 410 when using a foam double-sided adhesive.

[0030] As a preferred improvement of the present invention, refer to Figure 3The foam layer 100 is arranged in a ring shape. This structure allows the foam double-sided adhesive to be closer to the shape of the display screen and to the edge of the display screen, resulting in a better pasting effect.

[0031] As a preferred improvement of the present invention, the adhesive layer 200 is one of double-sided adhesive tape, 3M nano adhesive, optical adhesive or pressure-sensitive adhesive.

[0032] As a preferred improvement of the present invention, the depth of the groove 110 is 0.1 mm, and the width of the groove 110 is 5 mm. Furthermore, the interval width between two adjacent grooves is preferably 1 mm, and the overall thickness of the foam layer is preferably 0.4 mm. The above arrangement can prevent the adhesive layer from sticking to each other due to the narrow gap between adjacent grooves, and can ensure the best bubble removal effect, and make the adhesive layer have a certain adhesive surface size to ensure its adhesion ability.

[0033] As a preferred improvement of the present invention, the foam layer is made of foamed polyethylene.

[0034] In a second aspect, the embodiment of the utility model further provides a display module, comprising: a display screen, a housing, and a foam double-sided adhesive as described in the embodiment of the utility model, wherein the foam double-sided adhesive is used to bond the display screen and the housing. In particular, for the foam double-sided adhesive with a first release film and a second release film, the first release film and the second release film need to be removed before bonding.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A double-sided foam adhesive, characterized in that: include: The foam layer has a plurality of grooves arranged at intervals on the upper and lower surfaces thereof, and a sticky adhesive layer is arranged in each of the grooves, and the thickness of the sticky adhesive layer is not less than the depth of the groove.

2. The double-sided foam adhesive according to claim 1, characterized in that: A first release film is provided on the upper surface of the foam layer.

3. The double-sided foam adhesive according to claim 1, characterized in that: A second release film is provided on the lower surface of the foam layer.

4. The double-sided foam adhesive according to claim 2, characterized in that: A first film-tearing handle is provided on any side edge of the first release film.

5. The double-sided foam adhesive according to claim 3, characterized in that: A second film-tearing handle is provided on any side edge of the second release film.

6. The double-sided foam adhesive according to claim 1, characterized in that: The foam layer is arranged in a ring shape.

7. The double-sided foam adhesive according to claim 1, characterized in that: The adhesive layer is one of double-sided adhesive tape, 3M nano adhesive, optical adhesive or pressure-sensitive adhesive.

8. The double-sided foam adhesive according to claim 1, characterized in that: The depth of the groove is 0.1 mm, and the width of the groove is 5 mm.

9. The double-sided foam adhesive according to claim 1, characterized in that: The material of the foam layer is foamed polyethylene.

10. A display module, characterized in that: include: A display screen, a housing, and the foam double-sided adhesive as described in any one of claims 1 to 9, wherein the foam double-sided adhesive is used to adhere the display screen and the housing.

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