Anti-wrinkle graphite flake structure and backlight module

Abstract

The utility model discloses an anti-wrinkle graphite flake structure and a backlight module. The anti-wrinkle graphite flake structure comprises a display module, and the display module comprises a backlight iron stand; the FPC is arranged on the side surface of the display module in a binding manner; a graphite flake assembly; a plurality of needle holes are formed in the graphite sheet assembly from the upper surface to the lower surface in a penetrating mode, the graphite sheet assembly sequentially comprises a graphite sheet protection film, an insulating layer, a graphite sheet body and exhaust glue from top to bottom, the exhaust glue is arranged on the backlight iron frame, and all the needle holes are evenly distributed in the graphite sheet assembly in an array mode. The pinholes are formed in the graphite sheet assembly, so that bubbles and air in the graphite sheet assembly are effectively discharged when the graphite sheet assembly is attached to a backlight iron stand, bubbles and wrinkles of the graphite sheet assembly are prevented, the attaching stability and integrity of the graphite sheet assembly are improved, meanwhile, the heat dissipation effect of the graphite sheet assembly can be effectively improved, and the service life of the graphite sheet assembly is prolonged. And finally, the appearance problem and customer complaints caused by bubbles and wrinkles are reduced, and the product production yield and the overall user experience are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to display technical field especially relates to a kind of anti-wrinkle graphite sheet structure and backlight module. BACKGROUND

[0002] Traditional backlight module in order to improve its heat dissipation performance, often will be attached on backlight iron stand a heat dissipation graphite sheet (such as Figure 1 ). Graphite sheet and the adhesion of backlight iron stand usually rely on adhesive, however, if bonding is not in place during the attachment, air bubble, wrinkle and other adverse conditions are easily appeared.These problems not only reduce the heat dissipation function of graphite sheet, also can lead to product appearance defect, ultimately cause user complaint even return and rework, bring additional cost and trouble to production.

[0003] Due to the above reasons, there is a need in the prior art for a solution that can effectively improve the graphite sheet attachment process and avoid air bubble and wrinkle problems. Current solutions are mostly limited to optimizing the bonding process, such as adjusting the type of adhesive, the amount of adhesive used, etc., but it is difficult to fundamentally solve the problem, and there is still a certain degree of possibility of air bubble and wrinkle.

[0004] For example, Chinese utility model patent (CN209182614U) discloses a heat dissipation graphite sheet for liquid crystal display module, comprising: a graphite sheet body, the graphite sheet body, the graphite sheet body includes a protective film layer, a black film layer, a graphite sheet layer and a glue layer which are stacked together, the black film layer, the graphite sheet layer and the glue layer at the edge of the graphite sheet body are bent to form a pressing edge on one side of the glue layer. The utility model can avoid the breakage of the black film layer and the delamination of the graphite sheet, and improve the product yield.

[0005] However, the present inventors found the following defects when implementing the device: current solutions are mostly limited to optimizing the bonding process, such as adjusting the type of adhesive, the amount of adhesive used, etc., but it is difficult to fundamentally solve the problem, and there is still a certain degree of possibility of air bubble and wrinkle. SUMMARY

[0006] Therefore, it is necessary to provide an anti-wrinkle graphite sheet structure and backlight module to solve the above technical problems. The needle hole is provided on the graphite sheet assembly, which effectively expels the air bubbles and air inside when attached to the backlight iron stand, preventing air bubbles and wrinkles from occurring in the graphite sheet assembly, improving the stability and integrity of the graphite sheet assembly attachment, and effectively improving the heat dissipation effect of the graphite sheet assembly, ultimately reducing the appearance problems and complaints caused by air bubbles and wrinkles, improving the product yield and overall user experience. When the graphite sheet assembly is attached to the backlight iron stand, the needle hole acts as a small exhaust port, allowing air bubbles and air formed inside the graphite sheet assembly to be naturally expelled, preventing them from being trapped under the graphite sheet assembly and preventing the formation of air bubbles and wrinkles.

[0007] To solve the above technical problems, the utility model adopts the technical scheme as follows:

[0008] A wrinkle-proof graphite sheet structure.

[0009] The wrinkle-proof graphite sheet structure specifically comprises:

[0010] A display module, the display module comprises a backlight iron stand;

[0011] An FPC, the FPC is bound and arranged on the side surface of the display module;

[0012] A graphite sheet assembly; the graphite sheet assembly is through with a plurality of pinholes from the upper surface to the lower surface, the graphite sheet assembly comprises a graphite sheet protective film, an insulating layer, a graphite sheet body and exhaust glue from top to bottom, the exhaust glue is arranged on the backlight iron stand, and all the pinholes are evenly distributed on the graphite sheet assembly in an array.

[0013] As a preferred embodiment of the wrinkle-proof graphite sheet structure provided by the utility model, at least two conductive double-faced adhesives are arranged on the front surface of the FPC.

[0014] As a preferred embodiment of the wrinkle-proof graphite sheet structure provided by the utility model, the graphite sheet assembly is provided with at least two air-avoiding through grooves, and the shape and size of the air-avoiding through grooves are mutually symmetrical with the shape and size of the conductive double-faced adhesive.

[0015] As a preferred embodiment of the wrinkle-proof graphite sheet structure provided by the utility model, the air-avoiding through groove is provided with a first alignment mark corresponding to the backlight iron stand.

[0016] As a preferred embodiment of the wrinkle-proof graphite sheet structure provided by the utility model, the FPC is provided with a second alignment mark, and the second alignment mark corresponds to the first alignment mark.

[0017] As a preferred embodiment of the wrinkle-proof graphite sheet structure provided by the utility model, a graphite sheet tearing handle is arranged on the side wall of the graphite sheet protective film.

[0018] As a preferred embodiment of the wrinkle-proof graphite sheet structure provided by the utility model, the diameter of the pinhole is 0.8-1.0 mm.

[0019] As a preferred embodiment of the wrinkle-proof graphite sheet structure provided by the utility model, the distance between any two adjacent pinholes is 4.0-6.0 mm.

[0020] As a preferred embodiment of the anti-wrinkle graphite sheet structure provided by the utility model, the thickness of the graphite sheet assembly is 0.05mm.

[0021] In another aspect, the utility model discloses a backlight module, comprising the anti-wrinkle graphite sheet structure.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The anti-wrinkle graphite sheet structure and the backlight module provided by the utility model can effectively discharge the bubbles and air in the graphite sheet assembly when the graphite sheet assembly is attached to the backlight iron stand, thereby preventing the graphite sheet assembly from generating bubbles and wrinkles, improving the stability and integrity of the graphite sheet assembly, effectively improving the heat dissipation effect of the graphite sheet assembly, and ultimately reducing the appearance problems and complaints caused by bubbles and wrinkles, improving the product production yield and overall user experience. When the graphite sheet assembly is attached to the backlight iron stand, the pinhole functions as a small exhaust port, allowing the bubbles and air formed in the graphite sheet assembly to be naturally discharged, avoiding their being trapped under the graphite sheet assembly and preventing the formation of bubbles and wrinkles. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the scheme in the utility model, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0025] Figure 1 It is a structural schematic view of the prior art;

[0026] Figure 2 It is a structural schematic view of the anti-wrinkle graphite sheet structure provided by the utility model;

[0027] Figure 3 It is a structural schematic view of the graphite sheet assembly provided by the utility model;

[0028] Figure 4 It is a stacking schematic view of the graphite sheet assembly provided by the utility model.

[0029] The marking in the drawing is as follows:

[0030] The backlight iron stand 100; the FPC 200, the graphite sheet assembly 300, the pinhole 310, the graphite sheet protective film 320, the insulating layer 330, the graphite sheet body 340, the exhaust adhesive 350; the conductive double-sided adhesive 400; the air-avoiding through slot 500; the first alignment mark 600; the second alignment mark 700; the graphite sheet tearing handle 800. DETAILED DESCRIPTION

[0031] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor shall belong to the scope of protection of the present application.

[0032] As the background, the speed uniformity of the manual solid phase extraction device cannot be guaranteed, and it is also laborious, which is not conducive to the extraction speed.

[0033] In order to solve this technical problem, the utility model provides a wrinkle prevention graphite sheet structure.

[0034] Specifically, please refer to Figures 2-4 The wrinkle prevention graphite sheet structure specifically comprises:

[0035] The display module comprises a backlight iron stand 100.

[0036] The FPC 200 is bound and arranged on the side surface of the display module.

[0037] The graphite sheet assembly 300 is provided with a plurality of pinholes 310 through from the upper surface to the lower surface, and the graphite sheet assembly 300 comprises, in sequence from top to bottom, a graphite sheet protective film 320, an insulating layer 330, a graphite sheet body 340 and an exhaust glue 350. The exhaust glue 350 is arranged on the backlight iron stand 100, and all the pinholes 310 are evenly distributed in an array on the graphite sheet assembly 300.

[0038] The wrinkle prevention graphite sheet structure provided by the utility model can effectively discharge the internal bubbles and air when being attached to the backlight iron stand 100, so as to prevent the graphite sheet assembly 300 from forming bubbles and wrinkles, improve the stability and integrity of the graphite sheet assembly 300, effectively improve the heat dissipation effect of the graphite sheet assembly 300, and finally reduce the appearance problems and complaints caused by bubbles and wrinkles, improve the product production yield and overall user experience. When the graphite sheet assembly 300 is attached to the backlight iron stand 100, the pinholes 310 will act as a small exhaust port, allowing the bubbles and air formed in the graphite sheet assembly 300 to be naturally discharged, avoiding their being trapped under the graphite sheet assembly 300, and preventing the formation of bubbles and wrinkles.

[0039] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application.

[0040] It should be noted that the embodiments in the utility model and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0041] It should be noted that: similar labels and letters represent 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 the subsequent drawings.

[0042] Embodiment one

[0043] Please refer to Figures 2-4 A wrinkle-proof graphite sheet structure, comprising a display module, the display module comprising a backlight iron stand 100;

[0044] An FPC 200 is arranged on the side surface of the display module;

[0045] A graphite sheet assembly 300, the graphite sheet assembly 300 is penetrated by a plurality of pinholes 310 from the upper surface to the lower surface, the graphite sheet assembly 300 comprises a graphite sheet protective film 320, an insulating layer 330, a graphite sheet body 340 and an exhaust adhesive 350 from top to bottom, the exhaust adhesive 350 is arranged on the backlight iron stand 100, and all the pinholes 310 are evenly distributed on the graphite sheet assembly 300 in an array.

[0046] Through the above structural design, the graphite sheet assembly 300 is arranged on the lower end of the front surface of the backlight iron stand 100, close to the FPC 200, when the FPC 200 is bent and attached on the graphite sheet assembly 300, the pinholes 310 on the graphite sheet assembly 300 can discharge the internal air; the pinholes 310 are designed to have a certain air permeability and bubble discharge effect, and will not affect the heat dissipation performance of the graphite sheet assembly 300. The exhaust adhesive 350 is attached to the backlight iron stand 100, the graphite sheet protective film 320 is arranged above the insulating layer 330, the total thickness of the graphite sheet assembly 300 is 0.05mm, and the material can be carbon huath-25, good adhesive hnl025 or pile stone sgf-025-p10a10. The graphite sheet protective film 320 material can be dami's dmua5ja5050-003 or huixingxing's h86u4t-NN-050, etc., the thickness is 0.06-0.09mm, the film tearing voltage is ≤500V, and the surface impedance is 10^9Ω-10^11Ω. By opening the pinholes 310 on the graphite sheet assembly 300, the internal bubbles and air can be effectively discharged when attached to the backlight iron stand 100, so as to prevent the graphite sheet assembly 300 from appearing bubbles and wrinkles, improve the stability and integrity of the graphite sheet assembly 300 attached, and also effectively improve the heat dissipation effect of the graphite sheet assembly 300, finally reduce the appearance problems and complaints caused by bubbles and wrinkles, improve the product production yield and overall user experience. When the graphite sheet assembly 300 is attached to the backlight iron stand 100, the pinholes 310 will act as a small exhaust port, allowing the bubbles and air formed in the graphite sheet assembly 300 to be naturally discharged, avoiding being trapped under the graphite sheet assembly 300, and preventing the formation of bubbles and wrinkles.

[0047] Specifically, at least two conductive double-sided adhesives 400 are arranged on the front surface of the FPC 200.

[0048] Through the above structural design, the air-avoiding through slot 500 of the graphite sheet assembly 300 is used for the conductive double-sided adhesive 400 of the FPC 200 to be attached, which is beneficial to the fixed attachment of the FPC 200 after being bent on the graphite sheet assembly 300.

[0049] Specifically, the graphite sheet assembly 300 is provided with at least two air-avoiding through slots 500, and the shape and size of the air-avoiding through slot 500 are symmetrical to each other with the shape and size of the conductive double-sided adhesive 400.

[0050] Through the above structural design, the air-avoiding through slot 500 is used for avoiding the conductive double-sided adhesive 400 on the FPC 200, so that the conductive double-sided adhesive 400 is adhered to the backlight iron stand 100.

[0051] Specifically, the air-avoiding through slot 500 is provided with a first alignment mark 600 corresponding to the backlight iron stand 100. The FPC 200 is provided with a second alignment mark 700 corresponding to the first alignment mark 600.

[0052] Through the above structural design, the first alignment mark 600 and the second alignment mark 700 correspond to each other, which is beneficial to align the conductive double-sided adhesive 400 to be attached to the backlight iron stand 100.

[0053] Embodiment Two

[0054] The anti-wrinkle graphite sheet structure provided in Embodiment 1 is further optimized, and specifically, as shown in Figures 2-4 a graphite sheet tear handle 800 is arranged on the side wall of the graphite sheet protective film 320.

[0055] Through the above structural design, the graphite sheet tear handle 800 is arranged on the side edge of the graphite sheet protective film 320, and the size is 6mm*8mm / 5mm*5mm. The graphite sheet tear handle 800 can be red, green, blue, yellow, etc.

[0056] Embodiment Three

[0057] The anti-wrinkle graphite sheet structure provided in Embodiment 1 or 2 is further optimized, and specifically, as shown in Figures 2-4 the diameter of the pinhole 310 is 0.8-1.0mm.

[0058] Through the above structural design, the pinhole 310 will act as a small exhaust port, allowing the bubbles and air formed in the graphite sheet assembly 300 to be naturally discharged, avoiding being trapped under the graphite sheet assembly 300, and preventing the formation of bubbles and wrinkles.

[0059] Specifically, the distance between any two adjacent pinholes 310 is 4.0-6.0mm.

[0060] Through the above structural design, the distance between any two adjacent pinholes 310 is 4.0-6.0mm, and they are evenly arranged in a horizontal and vertical array on the graphite sheet assembly 300.

[0061] Specifically, the thickness of the graphite sheet assembly 300 is 0.05mm.

[0062] Through the above structural design, by opening the pinhole 310 on the graphite sheet assembly 300, when attached to the backlight iron stand 100, the internal bubbles and air are effectively discharged, thereby preventing the graphite sheet assembly 300 from forming bubbles and wrinkles, improving the stability and integrity of the graphite sheet assembly 300 attachment, and also effectively improving the heat dissipation effect of the graphite sheet assembly 300, ultimately reducing the appearance problems and complaints caused by bubbles and wrinkles, improving product production yield and overall user experience. When the graphite sheet assembly 300 is attached to the backlight iron stand 100, the pinhole 310 will act as a small exhaust port, allowing the bubbles and air formed in the graphite sheet assembly 300 to be naturally discharged, avoiding being trapped under the graphite sheet assembly 300, and preventing the formation of bubbles and wrinkles.

[0063] The utility model embodiment further provides a backlight module comprising the anti-wrinkle graphite sheet structure.

[0064] The use process of the anti-wrinkle graphite sheet structure and the backlight module is as follows:

[0065] When the graphite sheet assembly 300 is attached to the backlight iron stand 100, the pinhole 310 will be like a small exhaust port, allowing the bubbles and air formed in the graphite sheet assembly 300 to be naturally discharged, avoiding their being trapped under the graphite sheet assembly 300 and preventing the formation of bubbles and wrinkles.

[0066] In the utility model, unless another definite provision and limitation, the terms "mount", "connect", "joint", "fix" and other terms should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated; can be mechanical connection, also can be electric connection or each other can communicate; can be directly connected, also can be indirectly connected through intermediate medium, can be two element internal communication or two element interaction, unless another definite limitation. For ordinary skilled in the art, can understand the concrete meaning of the above terms in the utility model according to specific circumstances.

[0067] Obviously, the above described embodiments are only part of the embodiments of the utility model, not all the embodiments, and the preferred embodiments of the utility model are given in the drawings, but do not limit the patent range of the utility model. The utility model can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical scheme recorded in the foregoing each specific embodiment can be modified, or part of the technical features can be replaced equivalently. Any equivalent structure made by using the contents of the utility model specification and drawings, directly or indirectly used in other related technical fields, is also within the patent protection range of the utility model.

Claims

1. A wrinkle-resistant graphite sheet structure, characterized in that, It includes: The display module includes a backlight frame (100). FPC (200), the FPC (200) is attached to the side of the display module; Graphite sheet assembly (300); the graphite sheet assembly (300) has a plurality of pinholes (310) extending from the upper surface to the lower surface. The graphite sheet assembly (300) includes, from top to bottom, a graphite sheet protective film (320), an insulating layer (330), a graphite sheet body (340), and an venting adhesive (350). The venting adhesive (350) is disposed on the backlight iron frame (100). All the pinholes (310) are evenly distributed in an array on the graphite sheet assembly (300). The FPC (200) is positive At least two conductive double-sided adhesives (400) are provided on the surface, and at least two clearance slots (500) are provided on the graphite sheet assembly (300). The shape and size of the clearance slots (500) are symmetrical to the shape and size of the conductive double-sided adhesives (400). The backlight iron frame (100) corresponding to the clearance slots (500) is provided with a first alignment mark (600), and the FPC (200) is provided with a second alignment mark (700). The second alignment mark (700) corresponds to the first alignment mark (600).

2. The anti-wrinkle graphite sheet structure according to claim 1, characterized in that, A graphite sheet tear handle (800) is provided on the side wall of the graphite sheet protective film (320).

3. The anti-wrinkle graphite sheet structure according to claim 2, characterized in that, The diameter of the pinhole (310) is 0.8-1.0 mm.

4. The anti-wrinkle graphite sheet structure according to claim 3, characterized in that, The distance between any two adjacent pinholes (310) is 4.0-6.0 mm.

5. The anti-wrinkle graphite sheet structure according to claim 1, characterized in that, The thickness of the graphite sheet assembly (300) is 0.05 mm.

6. A backlight module, characterized in that, It includes the anti-wrinkle graphite sheet structure as described in any one of claims 1-5.

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