Backlight diffusion film with good heat dissipation performance

Abstract

The utility model discloses a backlight diffusion film with good heat dissipation performance, which belongs to the technical field of display backlight diffusion films, and is characterized in that the backlight diffusion film comprises a heat dissipation copper frame and a backlight diffusion film body, the periphery of the top of the heat dissipation copper frame is provided with connecting grooves, and the heat dissipation copper frame, the backlight diffusion film body, the connecting grooves and a heat conduction assembly are arranged. The backlight diffusion film body is arranged in the heat dissipation copper frame, then the outer side of the heat conduction assembly in the backlight diffusion film body makes contact with the inner side of the heat dissipation copper frame, and then the connecting grooves formed in the periphery of the heat dissipation copper frame are in bolting or clamping connection with the periphery of a screen installed on the heat dissipation copper frame for use. When the backlight diffusion film body is in use, the backlight diffusion film body is synchronously bonded with the edge of the screen through the bonding layer, so that the backlight diffusion film body is firmly fixed, and the screen at the bottom of the backlight diffusion film body can generate more heat when the backlight diffusion film body is actually used.

Description

Technical Field

[0001] The utility model relates to the technical field of display backlight diffusion films, in particular to a backlight diffusion film with good heat dissipation performance. Background Art

[0002] Backlight diffusion film is an indispensable and important component of light-emitting diode displays or liquid crystal display devices. Its main function is to receive high-energy photons from the blue backlight source and convert part of it into yellow light. The yellow light is mixed with the blue light that is not absorbed by the backlight source to obtain white light. Traditional display terminals include televisions, mobile phones, computers, etc. The backlight film group generally uses a blue light chip as the backlight source, and yellow phosphor is dispersed in an ordinary plastic substrate as a backlight film. This technology is relatively mature, but its disadvantages are also obvious. Therefore, various new materials and technologies are applied to high-performance display devices. The method of using quantum dot backlight film instead of traditional phosphor film is one of the more promising technologies.

[0003] At present, a Chinese utility model with announcement number: CN213113184U discloses a backlight film with good heat dissipation. This utility model discloses a backlight film with good heat dissipation. In this utility model, it includes a backlight film body, and fixing grooves are arranged on the left and right sides of the backlight film body, and threaded holes are arranged inside the fixing grooves, and threads are arranged on the inner walls of the threaded holes; a side of the backlight film body in contact with the pasting surface is provided with an adhesive layer, and a heat dissipation layer is provided on the upper surface of the adhesive layer, and a heat absorption particle layer is provided on the side of the heat dissipation layer away from the adhesive layer, and a reflection enhancement layer is provided on the side of the heat absorption particle layer away from the heat dissipation layer. The heat absorption particle layer and the heat dissipation layer are used in combination to absorb and release a large amount of heat generated during the use of the screen, thereby preventing the temperature of the screen from being too high during use and causing damage to the screen, thereby increasing the protection of the screen and extending the service life of the screen, and the threaded hole and the fixing groove can cooperate to further reinforce the backlight film body during the fixed installation process.

[0004] When the existing backlight diffuser film is in use, it will generate more heat during the operation of the screen, which will cause the screen at the bottom of the backlight diffuser film to generate more heat. The existing backlight diffuser film has a poor heat dissipation effect, which will make it difficult to discharge the internal temperature of the display. Long-term use will cause damage to the display. Therefore, a backlight diffuser film with good heat dissipation is proposed to solve the above-mentioned problems. Utility Model Content

[0005] The utility model provides a backlight diffusion film with good heat dissipation, aiming to solve the problem that the existing backlight diffusion film will generate more heat during the operation of the screen, which will cause the screen at the bottom of the backlight diffusion film to generate more heat, while the existing backlight diffusion film has a poor heat dissipation effect, which will make it difficult to discharge the internal temperature of the display, and long-term use will cause damage to the display.

[0006] The utility model is implemented as follows: a backlight diffusion film with good heat dissipation performance comprises a heat dissipation copper frame and a backlight diffusion film body, the top of the heat dissipation copper frame is provided with connection grooves around, the backlight diffusion film body is arranged inside the heat dissipation copper frame, a heat conduction component is arranged inside the backlight diffusion film body, and the outer side of the heat conduction component is in contact with the inside of the heat dissipation copper frame;

[0007] A bonding layer is provided on the side of the backlight diffusion film body that contacts the pasting surface, a high-temperature glass layer is provided on the top of the bonding layer, a heat dissipation layer is provided on the top of the high-temperature glass layer, a heat absorption particle layer is provided on the top of the heat dissipation layer, the top of the heat absorption particle layer is in contact with a heat conductive component, a reflection enhancement layer is provided on the top of the heat absorption particle layer, the bottom of the reflection enhancement layer is in contact with the heat conductive component, and a high-transmittance glass layer is provided on the top of the reflection enhancement layer.

[0008] In order to achieve the effect of improving the conduction and heat dissipation of the heat-absorbing particle layer, the heat dissipation layer and the reflection-enhancing layer, a backlight diffusion film with good heat dissipation is preferably used as the utility model. The heat-conducting component includes a transparent graphene heat-collecting sheet and a transparent graphene heat-conducting block. The transparent graphene heat-collecting sheet is arranged between the heat-absorbing particle layer and the reflection-enhancing layer. The transparent graphene heat-conducting block is welded to the transparent graphene heat-collecting sheet. The transparent graphene heat-conducting block is located between the heat-absorbing particle layer and the reflection-enhancing layer. The two sides of the transparent graphene heat-conducting block are respectively in contact with the two sides inside the heat dissipating copper frame.

[0009] In order to avoid the backlight diffusion film body from falling off easily due to the conventional use of adhesive, as a preferred backlight diffusion film with good heat dissipation of the utility model, the interior of the connecting groove is provided with a threaded hole, and the interior of the threaded hole is provided with a thread.

[0010] In order to facilitate the use of the backlight diffusion film body and the display screen for bonding, as a preferred backlight diffusion film with good heat dissipation of the utility model, the thickness of the bonding layer is 0.20mm-0.30mm, and the surrounding areas of the outside of the bonding layer and the outside of the bottom are coated with environmentally friendly glue.

[0011] In order to achieve the effect of heat insulating the adhesive layer and avoid the adhesive layer from being incompletely cured, which leads to a decrease in adhesion ability, as a preferred backlight diffusion film with good heat dissipation in the utility model, the thickness of the high-temperature glass layer is 0.30mm-0.40mm, and the high-temperature glass layer adopts a high-temperature resistant glass film.

[0012] In order to further enhance the heat dissipation effect of the heat dissipation layer after absorbing heat, a backlight diffusion film with good heat dissipation is preferably used in the utility model. The thickness of the heat dissipation layer is 0.25mm-0.35mm, and the edges of the heat dissipation layer are all concave.

[0013] In order to improve the effect of absorbing heat from the reflection enhancement layer, as a preferred backlight diffusion film with good heat dissipation of the utility model, the thickness of the heat absorbing particle layer is 0.15mm-0.25mm, and the heat absorbing particle layer is made of transparent heat absorbing material.

[0014] In order to achieve the effect of improving its transparency, as a preferred backlight diffusion film with good heat dissipation of the utility model, the thickness of the anti-reflection layer is 0.40mm-0.50mm, and the thickness of the high-transmittance glass layer is 0.20mm-0.30mm.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The backlight diffusion film with good heat dissipation is provided with a heat dissipation copper frame, a backlight diffusion film body, a connecting groove and a heat-conducting component. When in use, the backlight diffusion film body is placed on the heat dissipation copper frame, and then the outer side of the heat-conducting component inside the backlight diffusion film body is made to contact the inner side of the heat dissipation copper frame, and then the heat dissipation copper frame is used to bolt or clamp the screen around the connecting grooves provided around the heat dissipation copper frame, and then it is bonded to the edge of the screen through its adhesive layer, so as to fix the backlight diffusion film body firmly. When the backlight diffusion film body is actually used, the screen at the bottom of the backlight diffusion film body will generate more heat. At this time, the heat dissipation layer inside the backlight diffusion film body will fully conduct the heat to the outside, and the heat-absorbing particle layer will simultaneously absorb the heat of its heat dissipation layer, and the heat-conducting component in contact with the heat-absorbing particle layer will also absorb the heat, and then it will be conducted to the heat dissipation copper frame for synchronous heat dissipation, so as to improve the heat dissipation effect of the backlight diffusion film, thereby preventing the heat generated by it from causing damage to the display. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the overall structure diagram of the backlight diffusion film with good heat dissipation of the utility model;

[0018] Figure 2This is a schematic diagram of the structure of the backlight diffusion film body and the heat dissipation copper frame in the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the heat dissipation copper frame in the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the backlight diffusion film body in the utility model;

[0021] Figure 5 For this utility model Figure 4 Schematic diagram at A in the middle.

[0022] In the figure, 1. heat dissipation copper frame; 2. connection groove; 3. backlight diffusion film body; 4. adhesive layer; 5. high-temperature glass layer; 6. heat dissipation layer; 7. heat-absorbing particle layer; 8. thermal conductive component; 801. transparent graphene heat-collecting sheet; 802. transparent graphene thermal conductive block; 9. reflection enhancement layer; 10. high-transmittance glass layer. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0025] See also Figure 1-5 The utility model provides a technical solution: a backlight diffusion film with good heat dissipation, comprising a heat dissipation copper frame 1 and a backlight diffusion film body 3, the top of the heat dissipation copper frame 1 is provided with connection grooves 2 around it, the backlight diffusion film body 3 is arranged inside the heat dissipation copper frame 1, a heat conduction component 8 is arranged inside the backlight diffusion film body 3, and the outer side of the heat conduction component 8 is in contact with the inside of the heat dissipation copper frame 1;

[0026] A bonding layer 4 is provided on the side of the backlight diffusion film body 3 that contacts the pasting surface, a high-temperature glass layer 5 is provided on the top of the bonding layer 4, a heat dissipation layer 6 is provided on the top of the high-temperature glass layer 5, a heat absorption particle layer 7 is provided on the top of the heat dissipation layer 6, the top of the heat absorption particle layer 7 is in contact with a heat conductive component 8, a reflection enhancement layer 9 is provided on the top of the heat absorption particle layer 7, the bottom of the reflection enhancement layer 9 is in contact with the heat conductive component 8, and a high-transmittance glass layer 10 is provided on the top of the reflection enhancement layer 9.

[0027] In this embodiment: by setting a heat dissipation copper frame 1, a backlight diffusion film body 3, a connecting groove 2 and a heat-conducting component 8, when in use, the backlight diffusion film body 3 is placed on the heat dissipation copper frame 1, and then the outer side of the heat-conducting component 8 inside the backlight diffusion film body 3 is made to contact the inner side of the heat dissipation copper frame 1, and then the connecting grooves 2 opened around the heat dissipation copper frame 1 are used to bolt or clamp around the screen installed thereon, and then the bonding layer 4 is used to bond it to the edge of the screen, so as to achieve the backlight diffusion film body 3 being firmly fixed, and then when the backlight diffusion film body 3 is actually used, the screen at the bottom of the backlight diffusion film body 3 will generate more heat, and at this time the heat dissipation layer 6 inside the backlight diffusion film body 3 will fully conduct the heat to the outside, and the heat-absorbing particle layer 7 will simultaneously absorb the heat of the heat dissipation layer 6, and the heat-conducting component 8 in contact with the heat-absorbing particle layer 7 will also absorb the heat, and then conduct it to the heat dissipation copper frame 1 for synchronous heat dissipation, so as to improve the heat dissipation effect of the backlight diffusion film, thereby preventing the heat generated by it from causing damage to the display.

[0028] As a technical optimization solution of the utility model, the heat conducting component 8 includes a transparent graphene heat collecting sheet 801 and a transparent graphene heat conducting block 802. The transparent graphene heat collecting sheet 801 is arranged between the heat absorbing particle layer 7 and the reflection enhancing layer 9. The transparent graphene heat conducting block 802 is welded to the transparent graphene heat collecting sheet 801. The transparent graphene heat conducting block 802 is located between the heat absorbing particle layer 7 and the reflection enhancing layer 9. The two sides of the transparent graphene heat conducting block 802 are respectively in contact with the two sides inside the heat dissipation copper frame 1.

[0029] In this embodiment: by providing a transparent graphene heat collecting sheet 801 and a transparent graphene heat conductive block 802, the transparent graphene heat collecting sheet 801 and the transparent graphene heat conductive block 802 are arranged between the reflective enhancement layer 9 and the heat absorbing particle layer 7, so that when the heat absorbing particle layer 7 absorbs the heat of the heat dissipation layer 6, the transparent graphene heat collecting sheet 801 absorbs the heat of the heat absorbing particle layer 7 synchronously, and then conducts the heat to the heat dissipation copper frame 1 through the transparent graphene heat conductive block 802, so that the heat dissipation copper frame 1 is used for heat dissipation.

[0030] As a technical optimization solution of the present invention, threaded holes are provided inside the connection grooves 2, and threads are provided inside the threaded holes.

[0031] In this embodiment, a threaded hole with a thread is opened inside the connection groove 2 to avoid the backlight diffusion film body 3 being easy to fall off when connected to the screen due to the traditional use of adhesive, thereby increasing practicality.

[0032] As a technical optimization solution of the utility model, the thickness of the adhesive layer 4 is 0.20mm-0.30mm, and the surrounding of the outer side of the adhesive layer 4 and the outer side of the bottom are coated with environmentally friendly glue.

[0033] In this embodiment, environmentally friendly glue is applied around the outside of the adhesive layer 4 and the outside of the bottom, so that the backlight diffusion film body 3 can be easily bonded to the display screen, thereby increasing practicality.

[0034] As a technical optimization solution of the present invention, the thickness of the high-temperature glass layer 5 is 0.3 mm-0.40 mm, and the high-temperature glass layer 5 is made of a high-temperature resistant glass film.

[0035] In this embodiment: by adopting a high temperature resistant high temperature glass layer 5, the adhesive layer 4 can be insulated to avoid the adhesive layer 4 not being completely cured and causing the adhesion ability to decrease, thereby increasing practicality.

[0036] As a technical optimization solution of the present invention, the thickness of the heat dissipation layer 6 is 0.25 mm-0.35 mm, and the edges of the heat dissipation layer 6 are all concave.

[0037] In this embodiment, concave shapes are provided at the edges of the heat dissipation layer 6 to further enhance the heat dissipation effect of the heat dissipation layer 6 after absorbing heat, thereby increasing practicality.

[0038] As a technical optimization solution of the present utility model, the thickness of the heat absorbing particle layer 7 is 0.15 mm-0.25 mm, and the heat absorbing particle layer 7 is made of transparent heat absorbing material.

[0039] In this embodiment: the effect of absorbing heat by the reflection enhancement layer 9 can be improved by setting, so as to increase practicality.

[0040] As a technical optimization solution of the present invention, the thickness of the reflection enhancement layer 9 is 0.40 mm-0.50 mm, and the thickness of the high-transmittance glass layer 10 is 0.20 mm-0.30 mm.

[0041] In this embodiment, by using a high-transmittance glass layer 10 in combination with a reflection-enhancing layer 9, the effect of improving the transparency can be achieved to increase the practicality.

[0042] Working principle: First, place the backlight diffusion film body 3 on the heat dissipation copper frame 1, and then make the outer side of the transparent graphene heat conductive block 802 connected to the transparent graphene heat collecting sheet 801 inside the backlight diffusion film body 3 contact the inner side of the heat dissipation copper frame 1, and then use the connection grooves 2 opened around the heat dissipation copper frame 1 to bolt or clamp the screen around it, and then simultaneously bond it to the edge of the screen through its adhesive layer 4, so as to firmly fix the backlight diffusion film body 3, and then when the backlight diffusion film body 3 is actually used, The screen at the bottom of the backlight diffusion film body 3 will generate more heat. At this time, the heat dissipation layer 6 inside the backlight diffusion film body 3 will fully transfer the heat to the outside, and the heat-absorbing particle layer 7 will simultaneously absorb the heat of its heat dissipation layer 6, and the transparent graphene heat-collecting sheet 801 in contact with the heat-absorbing particle layer 7 will also absorb the heat synchronously, and then transfer the heat to the heat dissipation copper frame 1 through the transparent graphene thermal conductive block 802 for synchronous heat dissipation, thereby improving the heat dissipation effect of the backlight diffusion film and preventing the heat generated by it from causing damage to the display.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A backlight diffusion film with good heat dissipation performance, comprising a heat dissipation copper frame (1) and a backlight diffusion film body (3), characterized in that: The top of the heat dissipation copper frame (1) is provided with connection grooves (2) on all sides, the backlight diffusion film body (3) is arranged inside the heat dissipation copper frame (1), a heat conduction component (8) is arranged inside the backlight diffusion film body (3), and the outer side of the heat conduction component (8) is in contact with the inside of the heat dissipation copper frame (1); A bonding layer (4) is provided on the side of the backlight diffusion film body (3) in contact with the adhesive surface; a high-temperature glass layer (5) is provided on the top of the bonding layer (4); a heat dissipation layer (6) is provided on the top of the high-temperature glass layer (5); a heat absorption particle layer (7) is provided on the top of the heat dissipation layer (6); the top of the heat absorption particle layer (7) is in contact with a heat conductive component (8); a reflection enhancement layer (9) is provided on the top of the heat absorption particle layer (7); the bottom of the reflection enhancement layer (9) is in contact with the heat conductive component (8); and a high-transmittance glass layer (10) is provided on the top of the reflection enhancement layer (9).

2. A backlight diffusion film with good heat dissipation according to claim 1, characterized in that: The heat-conducting component (8) comprises a transparent graphene heat-concentrating sheet (801) and a transparent graphene heat-conducting block (802); the transparent graphene heat-concentrating sheet (801) is arranged between the heat-absorbing particle layer (7) and the reflective layer (9); the transparent graphene heat-conducting block (802) is welded to the transparent graphene heat-concentrating sheet (801); the transparent graphene heat-conducting block (802) is located between the heat-absorbing particle layer (7) and the reflective layer (9); and two sides of the transparent graphene heat-conducting block (802) are respectively in contact with two sides of the interior of the heat-dissipating copper frame (1).

3. The backlight diffusion film with good heat dissipation according to claim 1, characterized in that: The connection grooves (2) are provided with threaded holes inside, and threads are provided inside the threaded holes.

4. The backlight diffusion film with good heat dissipation according to claim 1, characterized in that: The thickness of the adhesive layer (4) is 0.20 mm-0.30 mm, and the outer sides of the adhesive layer (4) and the outer side of the bottom are all coated with environmentally friendly glue.

5. The backlight diffusion film with good heat dissipation according to claim 1, characterized in that: The thickness of the high-temperature glass layer (5) is 0.30 mm-0.40 mm, and the high-temperature glass layer (5) is made of a high-temperature resistant glass film.

6. The backlight diffusion film with good heat dissipation according to claim 1, characterized in that: The thickness of the heat dissipation layer (6) is 0.25 mm-0.35 mm, and the edges of the heat dissipation layer (6) are all concave.

7. The backlight diffusion film with good heat dissipation according to claim 1, characterized in that: The thickness of the heat-absorbing particle layer (7) is 0.15 mm to 0.25 mm, and the heat-absorbing particle layer (7) is made of a transparent heat-absorbing material.

8. The backlight diffusion film with good heat dissipation according to claim 1, characterized in that: The thickness of the reflection enhancement layer (9) is 0.40 mm to 0.50 mm, and the thickness of the high-transmittance glass layer (10) is 0.20 mm to 0.30 mm.

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