A solid adhesive layer that is easy to attach

Abstract

The utility model discloses a solid adhesive layer that is easy to attach, including: a solid adhesive layer, a protective film and a supporting film; the solid adhesive layer includes a first surface and a second surface, and the protective film and the supporting film are respectively provided with convex patterns around the edges of the bonding with the solid adhesive layer, so that the first surface and the second surface of the solid adhesive layer are respectively pressed with the protective film and the supporting film at their edges to form matching concave patterns. When the solid adhesive layer is attached, bubbles are concentrated on the periphery of the solid adhesive layer, and the concave patterns are set at the bonding edge of the solid adhesive layer, so that bubbles generated by the attachment can be discharged through the concave patterns at the edge. After attachment, as time goes by, the solid adhesive layer gradually discharges the bubbles, and there is no need to set patterns in the middle of the first surface and the second surface of the solid adhesive layer to discharge bubbles, and the middle of the protective film and the supporting film can be set flat, thereby reducing the cost of injection molding of the protective film and the supporting film.

Description

Technical Field

[0001] The utility model relates to the field of double-sided adhesive, in particular to a solid adhesive layer which is easy to adhere. Background Art

[0002] The bonding structure of the AMOLED smart watch module consists of a cover plate, OCA and AMOLED screen. In order to meet the full-screen display effect required by customers, the width of the black borders of the cover plate and AMOLED is continuously reduced. However, when the OCA and the cover plate are fully bonded, bubbles will remain at the edge of the bonded surface of the cover plate and OCA. The staff can usually discharge the bubbles by air pressure, but there are also many small bubbles that can easily accumulate at the edge of the ink on the cover plate. Since the black borders of the cover plate and AMOLED edges are reduced, it is easier for users to see small bubbles when they look at it at an angle, which makes the appearance poor. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a solid adhesive layer that is easy to adhere.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A solid adhesive layer that is easy to adhere, comprising: a solid adhesive layer, a protective film and a supporting film; the solid adhesive layer comprises a first surface and a second surface, the first surface and the second surface are opposite and sticky, the protective film is bonded to the first surface, the supporting film is bonded to the second surface, the protective film and the supporting film are respectively provided with convex patterns around the edges bonded to the solid adhesive layer, the convex patterns are frame-shaped, so that the first surface and the second surface of the solid adhesive layer are respectively pressed with the protective film and the supporting film at their edges to form matching concave patterns.

[0006] In one embodiment, the solid glue layer is OCA solid glue.

[0007] In one embodiment, the solid glue layer is a rectangular parallelepiped structure, a cylindrical structure or a cubic structure.

[0008] In one embodiment, the width of the concave groove is 0.4 mm.

[0009] In one embodiment, the concave patterns are in the shape of honeycombs, stripes or grids.

[0010] In one embodiment, the protection film and the support film are arranged in alignment.

[0011] In one embodiment, the length of the protective film and the length of the supporting film are respectively greater than the length of the solid adhesive layer, and the width of the protective film and the width of the supporting film are respectively greater than the width of the solid adhesive layer.

[0012] In one embodiment, the thickness of the support film is 0.1 mm.

[0013] In one embodiment, the protective film is a light release film.

[0014] In one embodiment, the support film is a heavy release film.

[0015] Compared with the prior art, the utility model has at least the following advantages:

[0016] The easy-to-attach solid adhesive layer of the utility model is provided with a solid adhesive layer, a protective film and a supporting film. The two sides of the solid adhesive layer are respectively bonded to the protective film and the supporting film, and the protective film and the supporting film are respectively provided with frame-shaped convex patterns around the edges bonded to the solid adhesive layer, so that the solid adhesive layer forms matching concave patterns at its edges. Before attachment, the staff needs to tear off the protective film, and the solid adhesive layer is aligned and bonded to the module. When the solid adhesive layer is attached, the bubbles are concentrated on the periphery of the solid adhesive layer, and the concave patterns are set at the bonding edge of the solid adhesive layer, so that the bubbles generated by the attachment can be discharged through the concave patterns at the edge. After attachment, as time goes by, the solid adhesive layer gradually discharges the bubbles, and there is no need to set patterns to discharge bubbles in the middle of the first and second surfaces of the solid adhesive layer, and the middle of the protective film and the supporting film can be set flat, thereby reducing the cost of injection molding of the protective film and the supporting film. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0018] Figure 1 It is a structural schematic diagram of an easy-to-attach solid adhesive layer in one embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the front structure of the concave pattern in one embodiment of the utility model;

[0020] Figure 3 It is another front structural schematic diagram of the concave pattern in one embodiment of the utility model.

[0021] Reference numerals:

[0022] Solid glue layer 10 , protective film 20 , support film 30 , concave pattern 40 . DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0024] This application proposes a solid adhesive layer that is easy to attach, please refer to Figure 1, including: a solid adhesive layer 10, a protective film 20 and a support film 30. The two sides of the solid adhesive layer 10 are bonded to the protective film 20 and the support film 30 respectively. The protective film 20 and the support film 30 are respectively provided with frame-shaped convex patterns around the bonding edges with the solid adhesive layer 10, so that the solid adhesive layer 10 forms matching concave patterns 40 at its edges. Before attachment, the staff needs to tear off the protective film 20, and the solid adhesive layer 10 is aligned and bonded to the module. When the solid adhesive layer 10 is attached, the bubbles are concentrated on the periphery of the solid adhesive layer 10. The concave patterns 40 are set at the bonding edges of the solid adhesive layer 10, so that the bubbles generated by the attachment can be discharged through the concave patterns 40 at the edges. After attachment, as time goes by, the solid adhesive layer 10 gradually discharges the bubbles. There is no need to set the middle of the first and second surfaces of the solid adhesive layer 10 to discharge bubbles. The protective film 20 and the support film 30 can be set flat, which reduces the cost of injection molding of the protective film 20 and the support film 30.

[0025] Specifically, the solid adhesive layer 10 includes a first surface and a second surface, the first surface and the second surface are opposite, the protective film 20 is bonded to the first surface, and the supporting film 30 is bonded to the second surface, and the protective film 20 and the supporting film 30 are provided with frame-shaped convex patterns around the bonding with the solid adhesive layer 10, and the frame-shaped convex patterns of the protective film 20 and the supporting film 30 are respectively pressed on the edges of the first surface and the second surface of the solid adhesive layer 10 to form concave patterns 40 at the edges, and the concave patterns 40 are composed of a plurality of small grooves. Preferably, the solid adhesive layer 10 is an OCA solid adhesive.

[0026] In order to make the solid adhesive layer 10 adaptable to more devices, the solid adhesive layer 10 is a rectangular parallelepiped structure, a cylindrical structure or a cube structure, which enriches the application scenarios.

[0027] In one embodiment, the width of the convex pattern is 0.4 mm. After attachment, the bubbles are mainly concentrated at 0.2 mm to 0.3 mm on the edge of the solid adhesive layer 10. Therefore, the width of the convex pattern is set to 0.4 mm to further enhance the effect of the convex pattern in evacuating bubbles. Moreover, when attached to the cover plate, the cover plate is provided with a visible area and an invisible area. The 0.4 mm convex pattern is attached to the invisible area to avoid affecting the picture sense.

[0028] See also Figure 2 and Figure 3 The concave patterns 40 are in the shape of a honeycomb, a stripe or a grid.

[0029] Furthermore, the protection film 20 and the support film 30 are arranged in alignment.

[0030] In one embodiment, the length of the protective film 20 and the length of the supporting film 30 are respectively greater than the length of the solid adhesive layer 10, and the width of the protective film 20 and the width of the supporting film 30 are respectively greater than the width of the solid adhesive layer 10, which effectively protects the solid adhesive layer 10 and prevents the solid adhesive layer 10 from being contaminated by the outside world.

[0031] Furthermore, in order to take into account the material and hardness of the support film 30, the thickness of the support film 30 is 0.1 mm. If the thickness of the support film 30 is greater than 0.1 mm, the cost is relatively high. If the thickness is less than 0.1 mm, the hardness of the support film 30 is insufficient, and it is difficult to support the solid glue layer 10 and the protective film 20 to maintain flatness.

[0032] In addition, the support film 30 is a heavy release film, and the protective film 20 is a light release film. Before attachment, the softer light release film is torn off, and the light release film is easy to tear. In addition, since the OCA solid adhesive layer 10 is soft in texture and the heavy release film is hard, it can effectively support the solid adhesive layer 10 and the protective film 20 for easy transportation and attachment.

[0033] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A solid adhesive layer that is easy to adhere, characterized in that: include: Solid glue layer, protective film and support film; The solid adhesive layer includes a first surface and a second surface, the first surface and the second surface are opposite to each other and are sticky, the protective film is bonded to the first surface, and the supporting film is bonded to the second surface, and the protective film and the supporting film are respectively provided with convex patterns around the edges bonded to the solid adhesive layer, and the convex patterns are frame-shaped, so that the first surface and the second surface of the solid adhesive layer are respectively pressed with the protective film and the supporting film at their edges to form matching concave patterns.

2. The easy-to-attach solid adhesive layer according to claim 1, characterized in that: The solid glue layer is OCA solid glue.

3. The easy-to-attach solid adhesive layer according to claim 1, characterized in that: The solid glue layer is a rectangular parallelepiped structure, a cylindrical structure or a cube structure.

4. The easy-to-attach solid adhesive layer according to claim 1, characterized in that: The width of the concave pattern is 0.4 mm.

5. The easy-to-attach solid adhesive layer according to claim 1, characterized in that: The concave patterns are in the shape of honeycombs, stripes or grids.

6. The easy-to-attach solid adhesive layer according to claim 1, characterized in that: The protective film and the supporting film are arranged in alignment.

7. The easy-to-attach solid adhesive layer according to claim 1, characterized in that: The length of the protective film and the length of the supporting film are respectively greater than the length of the solid adhesive layer, and the width of the protective film and the width of the supporting film are respectively greater than the width of the solid adhesive layer.

8. The easy-to-attach solid adhesive layer according to claim 1, characterized in that: The thickness of the support film is 0.1 mm.

9. The easy-to-attach solid adhesive layer according to claim 1, characterized in that: The protective film is a light release film.

10. The easily adhered solid adhesive layer according to claim 1, characterized in that: The supporting film is a heavy release film.

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