Composite copper foil of display module

Abstract

The utility model provides a composite copper foil of a display module, which comprises a graphite sheet structure, a copper foil structure and a sub-layer are sequentially laminated on the graphite sheet structure, a plurality of through holes for dispensing are arranged on one side of the graphite sheet structure, and the through holes penetrate through the graphite sheet structure, the copper foil structure and the sub-layer. A plurality of through holes for dispensing glue are formed in one side of the graphite sheet structure, the glue can be dispensed in the through holes, the glue is prevented from overflowing or dropping onto the display module by mistake, and the working efficiency is improved; the through hole penetrates through the graphite sheet structure, the copper foil structure and the sub-layer, and the through hole is gradually enlarged towards the sub-layer along the graphite sheet structure, so that the bottom of the dispensed composite copper foil is firmer, and the problem that a bending area of the composite copper foil is often warped or falls off due to concentrated stress is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of copper foil, in particular to a composite copper foil of a display module. Background Art

[0002] With the development of the times, the shipment volume of display modules of various sizes is increasing, and the yield rate of products is becoming more and more important.

[0003] In the prior art, during the glue dispensing process of the composite copper foil, glue often overflows or drips onto the display module by mistake, which requires manual wiping and affects work efficiency. In addition, when the composite copper foil of the display module is bent, the bent area often warps or falls off due to concentrated stress, resulting in defective products and interference with the entire machine. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a composite copper foil for a display module, which can effectively solve the problem that glue often overflows or accidentally drips onto the display module during the dispensing process of the composite copper foil, and the problem that the bending area of ​​the composite copper foil often warps or falls off due to concentrated stress when the composite copper foil is bent.

[0005] A composite copper foil for a display module, comprising:

[0006] Graphite sheet structure;

[0007] A copper foil structure and a sub-layer are sequentially stacked on the graphite sheet structure;

[0008] A plurality of through holes for dispensing glue are provided on one side of the graphite sheet structure, the through holes penetrate the graphite sheet structure, the copper foil structure and the sub-layer, and the through holes gradually become larger along the graphite sheet structure toward the sub-layer;

[0009] A first avoidance position for avoiding the FPC connector of the screen module is also provided on the graphite sheet structure, and the first avoidance position runs through the graphite sheet structure, the copper foil structure and the sub-layer.

[0010] Furthermore, the thickness of the graphite sheet structure is 72u.

[0011] Furthermore, the sublayer includes a first insulating film structure, the thickness of the first insulating film structure is 25u, and the first avoidance position penetrates the first insulating film structure.

[0012] Furthermore, a second insulating film structure is provided on the side of the first insulating film structure facing the through hole, the side of the second insulating film structure away from the graphite sheet structure is a glue surface, the thickness of the second insulating film structure is 30u, and the through hole penetrates part of the second insulating film.

[0013] Furthermore, the sub-layer further includes a second avoidance location, and the first insulating film structure and the second insulating film structure are arranged around the second avoidance location.

[0014] Furthermore, a release film structure is provided on the sub-layer, and the thickness of the release film structure is 50u.

[0015] Furthermore, the release film structure includes a first region, a second region and a third region, and the through hole is arranged in the first region.

[0016] Furthermore, the thickness of the copper foil structure is 30u.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: by opening a plurality of through holes for glue dispensing on one side of the graphite sheet structure, the glue can be dispensed in the through holes, thereby preventing the glue from overflowing or accidentally dripping onto the display module, thereby increasing work efficiency; by penetrating the through holes through the graphite sheet structure, the copper foil structure and the sublayer, and the through holes gradually become larger along the graphite sheet structure toward the sublayer, so that the bottom of the composite copper foil after glue dispensing is more solid, thereby solving the problem that the bending area of ​​the composite copper foil often warps or falls off due to concentrated stress. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a perspective view of the overall structure of the composite copper foil of the display module in the embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of a graphite sheet structure, a copper foil structure and a sub-layer in an embodiment of the utility model;

[0020] Figure 3 It is a left view of the composite copper foil of the display module in the embodiment of the utility model;

[0021] Description of main component symbols:

[0022] Graphite sheet structure 10 Second avoidance position 33 First avoidance position 11 Release film structure 40 Copper foil structure 20 First Area 41 Sublayer 30 Second area 42 First insulating film structure 31 Third Area 43 Second insulating film structure 32 Through Hole 50

[0023] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] See also Figures 1 to 3 , shown is a composite copper foil of a display module in an embodiment of the present utility model, including a graphite sheet structure 10 and a copper foil structure 20 and a sublayer 30 sequentially stacked on the graphite sheet structure 10 .

[0028] Furthermore, a release film structure 40 is provided on the sub-layer 30 , and the release film structure 40 includes a first area 41 , a second area 42 and a third area 43 .

[0029] It should be noted that after tearing off the release film of the first area 41, the first area 41 is adhered to the screen module; after tearing off the release film of the second area 42, the second area 42 is adhered to the FPC of the screen module; after tearing off the release film of the third area 43, the third area 43 is adhered to the back panel of the screen module.

[0030] Furthermore, the sublayer 30 includes a first insulating film structure 31 and a second insulating film structure 32 disposed on a side of the first insulating film structure 31 facing the first region 41 , and a side of the second insulating film structure 32 away from the graphite sheet structure 10 is a glue surface.

[0031] It is understandable that after tearing off the release film of the first area 41 , the utility model can be attached to the screen module through the side of the second insulating film structure 32 away from the graphite sheet structure 10 , thereby increasing the dispensing accuracy and work efficiency.

[0032] Furthermore, two through holes 50 for dispensing are opened on the graphite sheet structure 10 in the first area 41, and the through holes 50 pass through the graphite sheet structure 10, the copper foil structure 20 and the second insulating film structure 32, and the through holes 50 gradually become larger along the graphite sheet structure 10 toward the second insulating film structure 32.

[0033] It can be understood that after tearing off the release film of the first area 41, the utility model is attached to the screen module through the side of the second insulating film structure 32 away from the graphite sheet structure 10, and then silver paste is dotted into the center of the through hole 50. After the silver paste solidifies, silicone glue is dotted into the through hole 50, so as to avoid glue overflow or accidental dripping onto the display module, thereby increasing work efficiency; by gradually enlarging the through hole 50 along the graphite sheet structure 10 toward the sublayer 30, after the silicone glue solidifies, the graphite sheet structure 10, the copper foil structure 20 and the second insulating film structure 32 in the first area 41 are more firmly attached, and the second insulating film structure 32 can be more firmly attached to the screen module, thereby solving the problem that the bending area of ​​the composite copper foil is often warped or falls off due to concentrated stress.

[0034] Furthermore, a first avoidance space 11 is provided on the graphite sheet structure 10 , and the first avoidance space 11 penetrates the graphite sheet structure 10 , the copper foil structure 20 and a portion of the first insulating film structure 31 .

[0035] It should be noted that the first avoidance position 11 is used to avoid the connector of the screen module FPC.

[0036] Furthermore, the sub-layer 30 further includes a second avoidance space 33 , and the first insulating film structure 31 and the second insulating film structure 32 are arranged around the second avoidance space 33 .

[0037] It should be noted that the second avoidance position is used to avoid the FPC of the screen module.

[0038] Furthermore, the thickness of the graphite sheet structure is 72u, the thickness of the copper foil structure is 30u, the thickness of the first insulating film structure is 25u, the thickness of the second insulating film structure is 30u, and the thickness of the release film structure is 50u.

[0039] In summary, the composite copper foil of the display module in the above-mentioned embodiments of the utility model has a plurality of through holes for glue dispensing on one side of the graphite sheet structure, so that the glue can be dispensed in the through holes, thereby preventing the glue from overflowing or accidentally dripping onto the display module, thereby increasing work efficiency; the through holes are penetrated through the graphite sheet structure, the copper foil structure and the sub-layer, and the through holes are gradually enlarged along the graphite sheet structure toward the sub-layer, so that the bottom of the composite copper foil after glue dispensing is more firm, thereby solving the problem that the bending area of ​​the composite copper foil is often warped or falls off due to concentrated stress.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these 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 composite copper foil for a display module, characterized in that: include: Graphite sheet structure; A copper foil structure and a sub-layer are sequentially stacked on the graphite sheet structure; A plurality of through holes for dispensing glue are provided on one side of the graphite sheet structure, the through holes penetrate the graphite sheet structure, the copper foil structure and the sub-layer, and the through holes gradually become larger along the graphite sheet structure toward the sub-layer; A first avoidance position for avoiding the FPC connector of the screen module is also provided on the graphite sheet structure, and the first avoidance position runs through the graphite sheet structure, the copper foil structure and the sub-layer.

2. The composite copper foil of the display module according to claim 1, characterized in that: The thickness of the graphite sheet structure is 72u.

3. The composite copper foil of the display module according to claim 1, characterized in that: The sublayer includes a first insulating film structure, the thickness of the first insulating film structure is 25u, and the first avoidance position penetrates a portion of the first insulating film structure.

4. The composite copper foil of the display module according to claim 3, characterized in that: A second insulating film structure is arranged on the side of the first insulating film structure facing the through hole, a side of the second insulating film structure away from the graphite sheet structure is a glue surface, a thickness of the second insulating film structure is 30u, and the through hole penetrates the second insulating film.

5. The composite copper foil of the display module according to claim 4, characterized in that: The sub-layer further includes a second avoidance location, and the first insulating film structure and the second insulating film structure are arranged around the second avoidance location.

6. The composite copper foil of the display module according to claim 1, characterized in that: A release film structure is provided on the sub-layer, and the thickness of the release film structure is 50u.

7. The composite copper foil of the display module according to claim 6, characterized in that: The release film structure includes a first area, a second area and a third area, and the through hole is arranged in the first area.

8. The composite copper foil of the display module according to claim 1, characterized in that: The thickness of the copper foil structure is 30u.

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