Heat dissipation graphite structure and backlight

Abstract

The utility model discloses a heat dissipation graphite structure and backlight. The heat dissipation graphite structure comprises an insulating layer, exhaust glue, a heat dissipation layer and a protective film. The exhaust glue, the heat dissipation layer, the insulating layer and the protective film are stacked in sequence, and the heat dissipation layer is provided with an FPC attaching area and an exposed area. The protective film comprises a first heat dissipation protective film and a second heat dissipation protective film, the first heat dissipation protective film is arranged on the FPC attaching area, and the second heat dissipation protective film is arranged on the exposed area. The heat dissipation graphite structure is arranged on the backlight iron frame, the first heat dissipation protection film is torn off before the FPC is turned over, so that the FPC is turned over to the FPC attaching area, the second heat dissipation protection film can protect the exposed area except the FPC attaching area, the heat dissipation layer is effectively protected, and the heat dissipation effect and appearance integrity of the heat dissipation layer are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the backlight field especially relates to a heat dissipation graphite structure and backlight. BACKGROUND

[0002] In order to improve the heat dissipation performance of the backlight, the usual practice is to paste a graphite sheet on the iron stand of the backlight. A protective film is pasted on the surface of the graphite sheet to protect the graphite sheet. The tear handle of the protective film exceeds the iron stand, and is prone to collision, causing the protective film to fall off. Before the backlight is shipped, the main screen FPC needs to be bent and attached to the backlight iron stand for convenient transportation. The protective film needs to be removed before attachment. After the main screen FPC is folded, there is a covered part of the main screen FPC on the graphite sheet, and there is also an exposed part outside the covered part of the main screen FPC. The exposed part is not covered and protected, which can cause the graphite sheet to be dirty, wrinkled, scratched, etc. This can cause cosmetic defects, and in severe cases, it can affect the heat dissipation effect of the graphite sheet. SUMMARY

[0003] The utility model aims at overcoming the defects in the prior art, and provides a heat dissipation graphite structure and backlight.

[0004] The utility model aims at overcoming the defects in the prior art, and provides a heat dissipation graphite structure and backlight.

[0005] A heat dissipation graphite structure comprises an insulating layer, exhaust glue, a heat dissipation layer and a protective film. The exhaust glue, the heat dissipation layer, the insulating layer and the protective film are stacked in sequence. The heat dissipation layer is provided with an FPC attachment area and an exposed area. The protective film comprises a first heat dissipation protective film and a second heat dissipation protective film. The first heat dissipation protective film is arranged on the FPC attachment area, and the second heat dissipation protective film is arranged on the exposed area.

[0006] In one embodiment, the edge of the first heat dissipation protective film extends a first tear handle.

[0007] In one embodiment, a plurality of through holes are arranged at the connection between the first tear handle and the first heat dissipation protective film. The through holes are in a straight line, and the first tear handle is folded above the first heat dissipation protective film.

[0008] In one embodiment, the edge of the second heat dissipation protective film extends a second tear handle.

[0009] In one embodiment, a plurality of through holes are arranged at the connection between the second heat dissipation protective film and the second heat dissipation protective film. The through holes are in a straight line, and the second tear handle is folded above the second heat dissipation protective film.

[0010] In one embodiment, the first tear handle and the second tear handle are not the same color.

[0011] In one of the embodiments, the surface of the first and second tear handles is provided with an abrasive layer.

[0012] In one of the embodiments, the thickness of the air release adhesive is 0.015mm, the thickness of the heat dissipation layer is 0.025mm, and the thickness of the insulation layer is 0.012mm.

[0013] In one of the embodiments, the heat dissipation layer is a graphite sheet.

[0014] A backlight comprising the aforementioned heat dissipation graphite structure.

[0015] Compared with the prior art, the heat dissipation graphite structure has at least the following advantages:

[0016] The heat dissipation graphite structure comprises an insulation layer, an air release adhesive, a heat dissipation layer, and a protective film. The air release adhesive, the heat dissipation layer, the insulation layer, and the protective film are stacked in sequence, and the heat dissipation layer is provided with an FPC attaching area and a bare area. The protective film comprises a first heat dissipation protective film and a second heat dissipation protective film, the first heat dissipation protective film is arranged on the FPC attaching area, and the second heat dissipation protective film is arranged on the bare area. The heat dissipation graphite structure is arranged on a backlight stand. Before the FPC is folded, the first heat dissipation protective film is torn off, so that the FPC is folded to the FPC attaching area, and the second heat dissipation protective film can protect the bare area except the FPC attaching area, effectively protecting the heat dissipation layer and ensuring the heat dissipation effect and appearance integrity of the heat dissipation layer. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows.

[0018] Figure 1 FIG. 1 is a front structure schematic view of the heat dissipation graphite structure in an embodiment of the present application;

[0019] Figure 2 FIG. 2 is a cross-sectional structure schematic view of the heat dissipation graphite structure in an embodiment of the present application;

[0020] Figure 3 FIG. 3 is a structure schematic view of the stand, the FPC, and the heat dissipation graphite structure in an embodiment of the present application.

[0021] LIST OF REFERENCE NUMERALS

[0022] Air release adhesive 10, heat dissipation layer 11, insulation layer 12, protective film 20, first heat dissipation protective film 21, first tear handle 22, second heat dissipation protective film 23, second tear handle 24, FPC attaching area 30, bare area 31, stand 40, FPC 41. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings.

[0024] The utility model provides a kind of radiating graphite structure, please refer to Figure 1 、 Figure 2 And Figure 3 , including: exhaust glue 10, heat dissipation layer 11, insulating layer 12 and protective film 20.Exhaust glue 10, heat dissipation layer 11, insulating layer 12 and protective film 20 are stacked in sequence, and FPC attachment area 30 and exposed area 31 are provided on heat dissipation layer 11.Protective film 20 includes first heat dissipation protective film 21 and second heat dissipation protective film 23, first heat dissipation protective film 21 is arranged on FPC attachment area 30, and second heat dissipation protective film 23 is arranged on exposed area 31.Radiating graphite structure is arranged on backlight iron stand 40, before folding FPC 41, first heat dissipation protective film 21 is torn off, so that FPC 41 is folded to FPC attachment area 30, and second heat dissipation protective film 23 can protect exposed area 31 except FPC attachment area 30, effectively protect heat dissipation layer 11, guarantee the heat dissipation effect and appearance integrity of heat dissipation layer 11.

[0025] Among them, exhaust glue 10 of the whole radiating graphite structure is provided with a plurality of small exhaust holes, when radiating graphite structure is attached on backlight, can be attached on the iron stand 40 of backlight by exhaust glue 10 with radiating graphite structure, avoid the wrinkle of radiating graphite structure to affect the heat dissipation function of heat dissipation layer 11.

[0026] Preferably, heat dissipation layer 11 is graphite sheet.

[0027] Please refer to Figure 1 , the edge of first heat dissipation protective film 21 extends first tear handle 22, first tear handle 22 is convenient for staff to hold, when staff pulls up first heat dissipation protective film 21 through first tear handle 22, in turn, first heat dissipation protective film 21 is efficiently torn off.

[0028] Further, a plurality of through holes are provided at the connection of first tear handle 22 and first heat dissipation protective film 21, the through holes are in line, first tear handle 22 is folded to the upper side of first heat dissipation protective film 21, so that first tear handle 22 is point-discontinuous connected with first heat dissipation protective film 21, first tear handle 22 can be easily folded to the surface of first heat dissipation protective film 21, in turn, first tear handle 22 does not exceed first heat dissipation protective film 21 and radiating graphite structure, avoid the collision of first tear handle 22, and cause first heat dissipation protective film 21 to fall off.

[0029] Further, the edge of the second heat dissipation protective film 23 extends out of the second tear handle 24, which is convenient for the staff to hold, and the staff can efficiently tear off the second heat dissipation protective film 23 by pulling up the first heat dissipation protective film 21 through the second tear handle 24.

[0030] Likewise, the second heat dissipation protective film 23 is provided with a plurality of through holes at the connection with the second heat dissipation protective film 23, the through holes are in line, the second tear handle 24 is folded above the second heat dissipation protective film 23, so that the second tear handle 24 is point-disconnected with the second heat dissipation protective film 23, the second tear handle 24 can be easily folded to the surface of the second heat dissipation protective film 23, and then the second tear handle 24 does not exceed the second heat dissipation protective film 23 and the heat dissipation graphite structure, avoiding the collision of the second tear handle 24, which causes the second heat dissipation protective film 23 to fall off.

[0031] In an embodiment, the first tear handle 22 and the second tear handle 24 are different in color, so as to distinguish the first heat dissipation protective film 21 from the second heat dissipation protective film 23, avoiding the staff from tearing the wrong protective film 20, which causes the material to be scrapped or recycled.

[0032] Further, the first tear handle 22 and the second tear handle 24 are provided with an abrasive layer on the surface, the surface of the abrasive layer is rough, when the staff holds the first tear handle 22 / second tear handle 24, the static friction force of the staff on the first tear handle 22 / second tear handle 24 is increased when the pressure of the staff on the first tear handle 22 / second tear handle 24 is constant, avoiding hand slipping. Preferably, the thickness of the exhaust adhesive 10 is 0.015 mm, the thickness of the heat dissipation layer 11 is 0.025 mm, and the thickness of the insulating layer 12 is 0.012 mm.

[0033] Please refer to Figure 3 The application also provides a backlight comprising the heat dissipation graphite structure, and the heat dissipation graphite structure is attached to the iron stand 40, so as to protect the appearance integrity of the heat dissipation graphite structure and ensure the heat dissipation function of the heat dissipation graphite structure.

[0034] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A heat dissipating graphite structure, characterized by, The application relates to a heat-dissipating graphite structure, which comprises an insulation layer, exhaust glue, a heat-dissipating layer and a protective film, wherein the exhaust glue, the heat-dissipating layer, the insulation layer and the protective film are stacked in sequence, the heat-dissipating layer is provided with an FPC attaching area and a bare area, the protective film comprises a first heat-dissipating protective film and a second heat-dissipating protective film, the first heat-dissipating protective film is arranged on the FPC attaching area, and the second heat-dissipating protective film is arranged on the bare area. The edge of the first heat-dissipating protective film extends a first tear handle.

2. The heat dissipating graphite structure of claim 1, wherein, A plurality of through holes are arranged at the connection between the first tear handle and the first heat-dissipating protective film, the through holes are in a straight line, and the first tear handle is folded upwards of the first heat-dissipating protective film.

3. The heat dissipating graphite structure of claim 2, wherein, The edge of the second heat-dissipating protective film extends a second tear handle.

4. The heat dissipating graphite structure of claim 2, wherein, A plurality of through holes are arranged at the connection between the second tear handle and the second heat-dissipating protective film, the through holes are in a straight line, and the second tear handle is folded upwards of the second heat-dissipating protective film.

5. The heat dissipating graphite structure of claim 4, wherein, The first tear handle and the second tear handle are not of the same color.

6. The heat dissipating graphite structure of claim 4, wherein, The surfaces of the first tear handle and the second tear handle are provided with frosted layers.

7. The heat dissipating graphite structure of claim 4, wherein, The thickness of the exhaust glue is 0.015 mm, the thickness of the heat-dissipating layer is 0.025 mm, and the thickness of the insulation layer is 0.012 mm.

8. The heat dissipating graphite structure of claim 1, wherein, The heat-dissipating layer is a graphite sheet.

9. The heat dissipating graphite structure of claim 1, wherein, The application further relates to a heat-dissipating graphite structure as claimed in any one of claims 1-9.

10. A backlight, comprising: ​

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