Backlight module and display device

Abstract

The utility model is suitable for the technical field of display equipment, and provides a backlight module and a display device. The backlight module comprises a light-emitting part with an edge area; the installation casting is provided with a groove, the groove comprises an installation groove section, the installation groove section is provided with an installation groove bottom, an installation groove wall and an installation opening, and the light-emitting part is installed on the installation groove bottom; the reflecting film is mounted on the wall of the mounting groove and used for reflecting the light beams emitted by the edge area to the side, close to the mounting opening, of the light-emitting part. The light-emitting part is installed on the installation casting, heat can be dissipated in time, and the aging possibility of the light-emitting part is greatly reduced; the reflecting film is arranged, so that most light beams emitted by the edge area of the light-emitting part are not absorbed by the mounting casting any more, but are reflected to the side, close to the mounting opening, of the light-emitting part, and the effect of improving the light beam utilization rate, brightness and uniformity is achieved.

Description

Technical Field

[0001] The present application belongs to the technical field of display equipment, and more specifically, relates to a backlight module and a display device. Background Art

[0002] A backlight module is an electronic structure used to provide a light source. It is commonly used in liquid crystal displays and other devices that require backlight. The main function of the backlight module is to provide uniform backlighting behind the display panel to enhance the brightness and contrast of the display panel.

[0003] The backlight module in the related technology includes a light-emitting component and a mounting component, wherein the light-emitting component is an LED light board composed of multiple mini LED chips, and the mounting component is a sheet metal, and the LED light board is fixedly installed on the sheet metal; since the LED light board is composed of multiple miniLED chips, its power consumption is very high, but due to the limited thickness of the sheet metal, the heat conduction efficiency of the sheet metal is low, resulting in the LED light board being unable to dissipate heat in time, thereby accelerating the aging of the LED light board and shortening the service life of the LED light board. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a backlight module and a display device, aiming to solve the technical problem in the prior art that the light-emitting components cannot dissipate heat in time.

[0005] To achieve the above-mentioned purpose, according to one aspect of the present application, a backlight module is provided, comprising: a light-emitting component having an edge area; a mounting casting, on which a groove is provided, the groove comprising a mounting groove section, the mounting groove section having a mounting groove bottom, a mounting groove wall and a mounting opening, the light-emitting component being mounted on the mounting groove bottom; and a reflective film, mounted on the mounting groove wall, for reflecting a light beam emitted from the edge area to a side of the light-emitting component close to the mounting opening.

[0006] Optionally, the direction from the bottom of the installation groove to the installation opening is a preset direction, the installation groove wall is a plane, and there is a preset angle between the installation groove wall and the preset direction, and the preset angle is an acute angle.

[0007] Optionally, the groove also includes a first accommodating groove section, the first accommodating groove section has a first accommodating groove bottom, and the mounting groove section is arranged on the first accommodating groove bottom; the backlight module also includes a diffuser plate and a first auxiliary reflective film, the first auxiliary reflective film is installed on the first accommodating groove bottom, the diffuser plate is installed on the surface of the first auxiliary reflective film away from the first accommodating groove bottom, and the diffuser plate covers the mounting opening.

[0008] Optionally, the first accommodating groove section further has a first accommodating groove wall, and the backlight module further includes a second auxiliary reflective film, and the second auxiliary reflective film is installed on a surface of the diffusion plate close to the first accommodating groove wall.

[0009] Optionally, the groove also includes a second accommodating groove section, the second accommodating groove section has a second accommodating groove bottom and a second accommodating opening, and the first accommodating groove section is arranged on the second accommodating groove bottom; the backlight module also includes a cover plate and a display panel, the cover plate is installed in the second accommodating groove section, and is used to block the second accommodating opening; the display panel is installed on the surface of the cover plate close to the first accommodating groove section, and the display panel covers the installation opening.

[0010] Optionally, the backlight module further includes a protection frame, which includes a protection frame body, the protection frame body having a connecting plate, and the connecting plate is installed on the bottom of the second accommodating groove; the protection frame body covers the bottom of the first accommodating groove.

[0011] Optionally, the protection frame further includes a buckle, and a buckle slot is provided on the first receiving groove wall, and the protection frame is installed on the first receiving groove wall by inserting the buckle into the buckle slot.

[0012] Optionally, the light-emitting component is an LED light panel; the first auxiliary reflective film is bonded to the reflective film, the second auxiliary reflective film is bonded to the first auxiliary reflective film, and the second auxiliary reflective film covers the surface of the diffuser plate close to the first accommodating groove wall; the backlight module also includes an optical film assembly, which is installed on the surface of the diffuser plate away from the installation groove section.

[0013] Optionally, a thermally conductive adhesive paper is provided between the light-emitting component and the bottom of the mounting groove, and the light-emitting component is fixedly mounted on the bottom of the mounting groove by the thermally conductive adhesive paper.

[0014] According to another aspect of the present application, a display device is provided, and the display device includes the above-mentioned backlight module.

[0015] The beneficial effect of the backlight module provided by the present application is that: compared with the prior art, since the mounting casting in the present application is thicker than sheet metal, the mounting casting in the present application has a higher heat conduction efficiency than sheet metal. In this case, the light-emitting component in the present application is installed on the mounting casting to obtain timely heat dissipation, which greatly reduces the possibility of aging of the light-emitting component and extends the service life of the light-emitting component; at the same time, the reflective film provided makes most of the light beams emitted from the edge area of ​​the light-emitting component in the present application no longer absorbed by the mounting casting, but reflected to the side of the light-emitting component close to the mounting opening, which plays a role in improving the utilization rate, brightness and uniformity of the light beam; in addition, the groove provided also plays a role in protecting the light-emitting component and extending the service life of the light-emitting component. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A schematic diagram of the structure of a backlight module provided in an embodiment of the present application;

[0018] Figure 2 A first cross-sectional schematic diagram of a backlight module provided in an embodiment of the present application;

[0019] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0020] Figure 4 A second cross-sectional schematic diagram of the backlight module provided in an embodiment of the present application;

[0021] Figure 5 for Figure 4 The enlarged schematic diagram of point B in the middle;

[0022] Figure 6 A schematic diagram of the structure of the protection frame provided in an embodiment of the present application;

[0023] Figure 7 for Figure 6 The enlarged schematic diagram of the center C;

[0024] Figure 8 for Figure 6 The enlarged schematic diagram of point D in the middle;

[0025] The reference numerals in the above drawings are as follows:

[0026] 100, light-emitting part; 200, mounting casting; 210, groove; 211, mounting groove section; 212, first accommodating groove section; 2121, card slot; 213, second accommodating groove section; 300, reflective film; 400, diffuser plate; 500, first auxiliary reflective film; 600, second auxiliary reflective film; 700, cover plate; 800, display panel; 900, protective frame; 910, protective frame body; 911, connecting plate; 920, buckle; 1000, optical film assembly. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element. In the absence of conflict, the embodiments in this application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] As described in the background technology, at present, the backlight module is an electronic structure for providing a light source, which is commonly used in liquid crystal displays and other devices that require backlight. The main function of the backlight module is to provide uniform backlight illumination behind the display panel to enhance the brightness and contrast of the display panel. The backlight module in the related art includes a light-emitting component and a mounting component, wherein the light-emitting component is an LED light board composed of multiple mini LED chips, and the mounting component is a sheet metal, and the LED light board is fixedly mounted on the sheet metal; since the LED light board is composed of multiple mini LED chips, its power consumption is very high, but due to the limited thickness of the sheet metal, the heat conduction efficiency of the sheet metal is low, resulting in the LED light board being unable to dissipate heat in time, thereby accelerating the aging of the LED light board and shortening the service life of the LED light board.

[0032] Reference Figures 1 to 5In order to solve the above problems, according to one aspect of the present application, an embodiment of the present application provides a backlight module, which includes a light-emitting component 100, a mounting casting 200 and a reflective film 300, wherein the light-emitting component 100 has an edge area; the mounting casting 200 is provided with a groove 210, the groove 210 includes a mounting groove section 211, the mounting groove section 211 has a mounting groove bottom, a mounting groove wall and a mounting opening, and the light-emitting component 100 is mounted on the mounting groove bottom; the reflective film 300 is mounted on the mounting groove wall, and is used to reflect the light beam emitted from the edge area of ​​the light-emitting component 100 to the side of the light-emitting component 100 close to the mounting opening.

[0033] In the embodiment of the present application, the light-emitting component 100 is generally an LED (English full name: Light Emitting Diode, Chinese name: light-emitting diode) lamp board, which includes a substrate and a plurality of mini LED chips mounted on the substrate, and the plurality of mini LED chips are arranged on the substrate in a dot matrix manner; the light-emitting component 100 also has a middle area, the middle area of ​​the light-emitting component 100 is the mini LED chip at the middle position, and the edge area of ​​the light-emitting component 100 is the mini LED chip in the outermost circle; in addition, the light-emitting component 100 is fixedly attached to the bottom of the mounting groove through the mounting opening; the mounting casting 200 is generally a casting made of aluminum-copper alloy or aluminum-magnesium alloy; the reflective film 300 is generally made of a material with high reflectivity, such as aluminum film or silver film, and the reflective film 300 is generally fixedly attached to the wall of the mounting groove by gluing.

[0034] Since the mounting casting 200 in the present application is thicker than sheet metal, the mounting casting 200 in the present application has a higher heat conduction efficiency than sheet metal. In this case, the light-emitting component 100 in the present application is installed on the mounting casting 200 to obtain timely heat dissipation, which greatly reduces the possibility of aging of the light-emitting component 100 and extends the service life of the light-emitting component 100; at the same time, the reflective film 300 provided makes most of the light beams emitted from the edge area of ​​the light-emitting component 100 in the present application no longer absorbed by the mounting casting 200, but reflected to the side of the light-emitting component 100 close to the mounting opening, thereby improving the utilization rate, brightness and uniformity of the light beam; in addition, the groove 210 provided also protects the light-emitting component 100 and extends the service life of the light-emitting component 100.

[0035] Reference Figures 2 to 5 In one embodiment, the direction from the bottom of the installation groove to the installation opening is a preset direction, the installation groove wall is a plane, and there is a preset angle between the installation groove wall and the preset direction, and the preset angle is an acute angle.

[0036] In this embodiment, the number of mounting groove walls is four, of which two mounting groove walls are symmetrically arranged with the first preset surface as the center, and the other two mounting groove walls are symmetrically arranged with the second preset surface as the center, the first preset surface and the second preset surface are perpendicular to each other, and four reflective films 300 are provided, and the four reflective films 300 are respectively installed on the four mounting groove walls; the preset angle between the mounting groove wall and the preset direction is generally 45 degrees. In other embodiments, the preset angle between the mounting groove wall and the preset direction can also be other angles.

[0037] By adopting the reflective film 300 of the above-mentioned design, most of the light beams emitted from the edge area of ​​the light-emitting component 100 in the present application can be reflected toward the edge area of ​​the light-emitting component 100 near the mounting opening, thereby improving the brightness of the edge area of ​​the light-emitting component 100 near the mounting opening, and avoiding the situation where the brightness of the edge area of ​​the light-emitting component 100 near the mounting opening is lower than the brightness of the middle area of ​​the light-emitting component 100 near the mounting opening due to the light beam emitted from the edge area of ​​the light-emitting component 100 not being compensated by the light beam emitted from the more peripheral area. The reflective film 300 provided plays a role in improving the uniformity of the light beam.

[0038] Reference Figures 2 to 5 In one embodiment, the groove 210 also includes a first accommodating groove section 212, the first accommodating groove section 212 has a first accommodating groove bottom, and the mounting groove section 211 is arranged on the first accommodating groove bottom; the backlight module also includes a diffuser plate 400 and a first auxiliary reflective film 500, the first auxiliary reflective film 500 is installed on the first accommodating groove bottom, the diffuser plate 400 is installed on the surface of the first auxiliary reflective film 500 away from the first accommodating groove bottom, and the diffuser plate 400 covers the mounting opening.

[0039] In this embodiment, the diffuser plate 400 is generally made of a transparent material, such as plastic or glass. The diffuser plate 400 generally completely covers the installation opening and is fixedly installed on the first auxiliary reflective film 500 using double-sided tape. The diffuser plate 400 serves to diffuse the light beam and make the light beam uniform. In addition, the first accommodating groove section 212 is connected to the installation groove section 211, and the first accommodating groove section 212 also has a first accommodating opening. The diffuser plate 400 is installed in the first accommodating groove section 212 through the first accommodating opening. The first auxiliary reflective film 500 is generally made of a material with high reflectivity, such as an aluminum film or a silver film. At the same time, the first auxiliary reflective film 500 is generally fixedly attached to the bottom of the first accommodating groove by gluing.

[0040] By adopting the first auxiliary reflective film 500 of the above design, part of the light beam escaping outward through the edge of the diffuser plate 400 can be reflected into the diffuser plate 400, so that the brightness at the edge of the diffuser plate 400 can be improved; the first auxiliary reflective film 500 has the effect of improving the uniformity of the light beam. In addition, the first accommodating groove section 212 also has the effect of protecting the diffuser plate 400, thereby extending the service life of the diffuser plate 400.

[0041] Reference Figures 2 to 5 In one embodiment, the first accommodating groove section 212 further has a first accommodating groove wall, and the backlight module further includes a second auxiliary reflective film 600, which is mounted on the surface of the diffuser plate 400 close to the first accommodating groove wall.

[0042] In this embodiment, the second auxiliary reflective film 600 is generally made of a material with high reflectivity, such as an aluminum film or a silver film, and is generally fixed to the surface of the diffuser plate 400 close to the first receiving groove wall by gluing.

[0043] By adopting the above-designed second auxiliary reflective film 600 in combination with the first auxiliary reflective film 500, most of the light beams escaping outward through the edge of the diffuser plate 400 can be reflected into the diffuser plate 400, thereby further improving the brightness at the edge of the diffuser plate 400; the second auxiliary reflective film 600 serves to further improve the uniformity of the light beam.

[0044] Reference Figures 2 to 5 In one embodiment, the groove 210 also includes a second accommodating groove section 213, the second accommodating groove section 213 has a second accommodating groove bottom and a second accommodating opening, and the first accommodating groove section 212 is arranged on the second accommodating groove bottom; the backlight module also includes a cover plate 700 and a display panel 800, the cover plate 700 is installed in the second accommodating groove section 213, and is used to block the second accommodating opening; the display panel 800 is installed on the surface of the cover plate 700 close to the first accommodating groove section 212, and the display panel 800 covers the installation opening.

[0045] In this embodiment, the second accommodating groove section 213 is generally a stepped groove, and the second accommodating groove section 213 is connected to the first accommodating groove section 212; the cover plate 700 is generally fixed in the second accommodating groove section 213 by gluing, and completely covers the second accommodating opening to protect the components in the groove 210; the display panel 800 is generally a thin film transistor panel, which is mainly used to display and control images. The display panel 800 is fixedly mounted on the surface of the cover plate 700 close to the first accommodating groove section 212 by optical glue. In other embodiments, the display panel 800 can also be other types of panels; the display panel 800 is installed in the second accommodating groove section 213 and the first accommodating groove section 212 through the second accommodating opening.

[0046] Reference Figure 2 , Figure 3 , Figure 6 and Figure 7 In one embodiment, the backlight module further includes a protection frame 900, the protection frame 900 includes a protection frame body 910, the protection frame body 910 has a connecting plate 911, and the connecting plate 911 is installed on the bottom of the second receiving groove; the protection frame body 910 covers the bottom of the first receiving groove.

[0047] In this embodiment, the protection frame body 910 has a plurality of spaced connection plates 911, which extend toward the second receiving groove section 213 and are fixed to the bottom of the second receiving groove by gluing, and the remaining structures in the protection frame body 910 are all located in the first receiving groove section 212; in order to make the surface of the cover plate 700 away from the display panel 800 roughly flush with the second receiving opening, a pad is fixedly installed on the surface of the connection plate 911 close to the cover plate 700, and the cover plate 700 is fixedly installed on the pad; the protection frame body 910 not only prevents the cover plate 700 and the display panel 800 from falling and causing damage to the diffuser plate 400, but also reduces the possibility of light leakage from the backlight module.

[0048] Reference Figure 4 , Figure 5 , Figure 6 as well as Figure 8 In one embodiment, the protection frame 900 further includes a buckle 920 , and a buckle 2121 is provided on the wall of the first receiving groove. The protection frame 900 is installed on the wall of the first receiving groove by inserting the buckle 920 into the buckle 2121 .

[0049] In this embodiment, there are multiple buckles 920, which are arranged at intervals, and the number of the slots 2121 is the same as the number of the buckles 920. The multiple buckles 920 and the multiple slots 2121 are arranged one by one; the buckles 920 and the slots 2121 further strengthen the connection strength between the protection frame 900 and the mounting casting 200. In addition, in order to facilitate the processing and manufacturing of the protection frame 900, the buckles 920 and the protection frame body 910 are integrally formed.

[0050] Reference Figures 2 to 5 In one embodiment, the light emitting element 100 is an LED light panel; the first auxiliary reflective film 500 is attached to the reflective film 300, the second auxiliary reflective film 600 is attached to the first auxiliary reflective film 500, and the second auxiliary reflective film 600 covers the surface of the diffuser plate 400 close to the wall of the first receiving groove.

[0051] In this embodiment, the surface of the first auxiliary reflective film 500 close to the reflective film 300 is in contact with the surface of the reflective film 300 close to the first auxiliary reflective film 500, the surface of the second auxiliary reflective film 600 close to the first radiation reflective film 300 is in contact with the surface of the first auxiliary reflective film 500 close to the second auxiliary reflective film 600, and the second auxiliary reflective film 600 completely covers the surface of the diffuser plate 400 close to the wall of the first accommodating groove; the above design is conducive to further improving the uniformity of the light beam.

[0052] Reference Figures 2 to 5 In one embodiment, the backlight module further includes an optical film assembly 1000 , and the optical film assembly 1000 is mounted on a surface of the diffuser plate 400 away from the mounting groove section 211 .

[0053] In this embodiment, the optical film assembly 1000 includes a stacked quantum dot film (OD film in English, full name in English: Quantum Dot Film) and a brightness enhancement film. The quantum dot film is used to expand the color gamut and improve the brightness and contrast, and the brightness enhancement film is used to increase the brightness, uniform the light source and widen the viewing angle. The quantum dot film and the brightness enhancement film are connected by gluing. In other embodiments, the optical film assembly 1000 may also include other types of film materials.

[0054] Reference Figures 2 to 5 In one embodiment, a heat-conducting adhesive tape is provided between the light-emitting element 100 and the bottom of the mounting groove, and the light-emitting element 100 is fixedly mounted on the bottom of the mounting groove by the heat-conducting adhesive tape. The heat-conducting adhesive tape improves the heat dissipation efficiency of the light-emitting element 100 and further reduces the possibility of aging of the light-emitting element 100.

[0055] Reference Figures 1 to 8 According to another aspect of the present application, an embodiment of the present application further provides a display device, and the display device includes the above-mentioned backlight module.

[0056] In the embodiments of the present application, the display device is generally a liquid crystal display or an organic light emitting diode display.

[0057] In summary, the backlight module and display device provided by the present embodiment have at least the following beneficial technical effects: since the mounting casting 200 in the present application is thicker than sheet metal, the mounting casting 200 in the present application has a higher heat conduction efficiency than sheet metal. In this case, the light-emitting component 100 in the present application is installed on the mounting casting 200 to obtain timely heat dissipation, which greatly reduces the possibility of aging of the light-emitting component 100 and extends the service life of the light-emitting component 100; at the same time, the reflective film 300 provided makes most of the light beams emitted from the edge area of ​​the light-emitting component 100 in the present application no longer absorbed by the mounting casting 200, but reflected to the side of the light-emitting component 100 close to the mounting opening, thereby improving the utilization rate, brightness and uniformity of the light beam; in addition, the groove 210 provided also protects the light-emitting component 100 and extends the service life of the light-emitting component 100.

[0058] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A backlight module, characterized in that: include: a light emitting member having an edge region; A mounting casting, wherein the mounting casting is provided with a groove, wherein the groove comprises a mounting groove section, wherein the mounting groove section has a mounting groove bottom, a mounting groove wall and a mounting opening, and the light emitting element is mounted on the mounting groove bottom; A reflective film is installed on the wall of the installation groove and is used to reflect the light beam emitted from the edge area to a side of the light emitting component close to the installation opening.

2. The backlight module according to claim 1, characterized in that: The direction from the bottom of the mounting groove to the mounting opening is a preset direction, the mounting groove wall is a plane, and there is a preset angle between the mounting groove wall and the preset direction, and the preset angle is an acute angle.

3. The backlight module according to claim 1 or 2, characterized in that: The groove further comprises a first accommodating groove section, the first accommodating groove section has a first accommodating groove bottom, and the mounting groove section is arranged on the first accommodating groove bottom; The backlight module further includes a diffusion plate and a first auxiliary reflection film, wherein the first auxiliary reflection film is mounted on the bottom of the first receiving groove, the diffusion plate is mounted on a surface of the first auxiliary reflection film away from the bottom of the first receiving groove, and the diffusion plate covers the mounting opening.

4. The backlight module according to claim 3, characterized in that: The first accommodating groove section also has a first accommodating groove wall, and the backlight module further includes a second auxiliary reflective film, which is mounted on the surface of the diffusion plate close to the first accommodating groove wall.

5. The backlight module according to claim 4, characterized in that: The groove further comprises a second accommodating groove section, the second accommodating groove section has a second accommodating groove bottom and a second accommodating opening, and the first accommodating groove section is arranged on the second accommodating groove bottom; The backlight module also includes a cover plate and a display panel. The cover plate is installed in the second accommodating groove section to block the second accommodating opening. The display panel is installed on the surface of the cover plate close to the first accommodating groove section, and the display panel covers the installation opening.

6. The backlight module according to claim 5, characterized in that: The backlight module further comprises a protection frame, which comprises a protection frame body, and the protection frame body has a connecting plate, and the connecting plate is installed on the bottom of the second receiving groove; the protection frame body covers the bottom of the first receiving groove.

7. The backlight module according to claim 6, characterized in that: The protection frame further comprises a buckle, a buckle slot is provided on the wall of the first receiving slot, and the protection frame is installed on the wall of the first receiving slot by inserting the buckle into the buckle slot.

8. The backlight module according to claim 6, characterized in that: The light-emitting element is an LED light board; the first auxiliary reflective film is attached to the reflective film, the second auxiliary reflective film is attached to the first auxiliary reflective film, and the second auxiliary reflective film covers the surface of the diffuser plate close to the wall of the first accommodating groove; The backlight module further comprises an optical film assembly, and the optical film assembly is mounted on a surface of the diffusion plate away from the mounting groove section.

9. The backlight module according to claim 1 or 2, characterized in that: A heat-conducting adhesive paper is provided between the light-emitting component and the bottom of the mounting groove, and the light-emitting component is fixedly mounted on the bottom of the mounting groove through the heat-conducting adhesive paper.

10. A display device, characterized in that: The display device comprises the backlight module according to any one of claims 1 to 9.

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