Backlight module and remote controller comprising same

Abstract

The utility model provides a backlight module and a remote controller comprising the same, relates to the technical field of remote controllers, and solves the technical problem that a backlight source of a traditional backlight plate cannot be assembled by using automatic equipment. The backlight module comprises a backlight plate, a backlight source, a main board and a light guide structure, the backlight plate is attached to the main board and is in limited connection with the main board through a limiting structure; the backlight source is arranged on the side, away from the backlight plate, of the main board to form an external backlight source structure. The light guide structure is arranged on the main board so as to guide light emitted by the backlight source to the backlight plate. After the backlight source is externally arranged on the main board, a built-in circuit and a built-in pin structure of the backlight plate can be omitted, and the production cost of the backlight plate is reduced; the backlight plate is connected with the mainboard in a limiting connection mode, automatic equipment assembly is facilitated, production efficiency is improved, and production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of remote controllers, in particular to a backlight module and a remote controller comprising the same. Background Art

[0002] The existing remote control backlight panel has a built-in backlight source. The backlight panel and the backlight source are connected to the PCB board through a solder pad, and the backlight source built into the backlight panel is powered and illuminated to achieve its backlight effect. Due to the special-shaped structure of the backlight panel of the traditional remote control, it cannot be inserted through automatic insertion equipment. During the assembly process, it can only be manually inserted and soldered. When the backlight display fails, it is not convenient to repair. Not only is the assembly efficiency low, the production cost is high, but the after-sales maintenance cost is also high. In addition, the traditional backlight panel has certain limitations in the assembly of automated equipment. Therefore, it is necessary to develop a new remote control backlight panel and backlight source to achieve convenient and fast assembly and uniform backlight display effect. Utility Model Content

[0003] The utility model aims to provide a backlight module and a remote controller including the same, so as to solve the technical problem in the prior art that the backlight source of the traditional backlight plate cannot be assembled using automated equipment.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a backlight module, comprising a backlight plate, a backlight source, a main board, and a light guide structure; wherein:

[0006] The backlight panel is fitted with the main board and is connected to the main board in a limiting manner through a limiting structure;

[0007] The backlight source is arranged on a side of the mainboard away from the backlight panel to form an external backlight source structure; the external backlight source structure here is relative to the backlight panel. Before the improvement, the backlight source was built into the backlight panel as a built-in backlight source structure, and after the improvement, the backlight source is externally placed on the mainboard.

[0008] The light guide structure is disposed on the main board to guide the light emitted by the backlight source to the backlight plate.

[0009] It should be noted that the backlight panel is a light-scattering component that can transform the emitted light from a point into a surface; the backlight source is a luminous component used to generate light; the backlight source and the backlight panel combined together form a backlight module.

[0010] For the backlight module provided by the present utility model, after the backlight source is externally disposed on the main board, the built-in circuit and pin structure of the backlight board can be cancelled, reducing the production cost of the backlight board; the backlight board is connected to the main board in a limiting connection manner, facilitating the assembly by automated equipment, improving the production efficiency and reducing the production cost.

[0011] As a further improvement of the present utility model, the backlight source is of a reverse patch structure. It should be noted that common patch light-emitting diodes are generally positive-mounted (that is, after being mounted, the lamp beads face upward and emit light upward), while the patch light-emitting diodes used in the present utility model are reverse-mounted (that is, after being mounted, the lamp beads face downward and emit light downward), so it is necessary to open holes on the main board for light transmission.

[0012] By adopting a backlight source of a reverse patch structure, the present utility model can achieve downward light emission (emitting light toward the backlight board side). The light emitted by the light source irradiates the backlight board through the light guide structure on the main board. The backlight board scatters the light source and absorbs the overly bright light, so as to emit light evenly and achieve a good backlight display effect.

[0013] As a further improvement of the present utility model, the number of the backlight sources is two, which are arranged side by side at intervals.

[0014] As a further improvement of the present utility model, the light guide structure includes light guide holes corresponding to the backlight sources.

[0015] As a further improvement of the present utility model, light incident holes are provided at positions on the backlight board corresponding to the light guide holes, and a light diffusing structure capable of scattering the light source and absorbing the overly bright light is provided on the light incident holes.

[0016] It should be noted that light diffusing is a process for surface treatment of a mold, used to create various texture patterns on the surface of a product. Light diffusing can enhance the appearance texture of a part, endow the product with anti-slip and anti-rotation characteristics, and prevent light reflection.

[0017] By performing light diffusing treatment at the light incident holes, the present utility model can strengthen the scattering of light on the surface of the product and avoid the appearance of overly bright light spots.

[0018] By adopting the above structure, compared with the traditional remote control backlight board and backlight source, in the present utility model, the backlight source is externally disposed on the main board, and reverse patch components are used to achieve the purpose of downward light emission; the light emitted by the light source irradiates the light incident holes of the backlight board through the light guide holes on the main board. The backlight board scatters the light source and absorbs the overly bright light through the light diffusing at the light incident hole positions, so as to emit light evenly and achieve a good backlight display effect.

[0019] As a further improvement of the present utility model, liquid crystal conductive rubber strips are provided on two opposite sides of the main board to form a limiting space; the edge of the backlight board abuts against the liquid crystal conductive rubber strips and is assembled in the limiting space in a limiting connection manner.

[0020] After the backlight source of the present utility model is externally disposed on the main board, the built-in circuit and pin structure of the backlight board can be cancelled, reducing the production cost of the backlight board; the backlight board is of a special-shaped structure and cannot be automatically inserted and welded due to equipment limitations and can only be manually completed. In the present utility model, the backlight board is fixed by upper and lower (or left and right) liquid crystal conductive rubber strips, and the part of the conductive rubber strip higher than the liquid crystal display screen limits the backlight board between the main board and the liquid crystal display screen. The backlight board can be assembled in a limiting manner through the upper and lower conductive rubber strips, which is convenient for automatic equipment assembly, improves production efficiency, and reduces production cost.

[0021] As a further improvement of the present utility model, the length of the liquid crystal conductive rubber strip is not less than the length of the backlight board.

[0022] As a further improvement of the present utility model, a white reflective film, a diffusion film, and a silver reflective film are provided on the backlight board; wherein:

[0023] The white reflective film is disposed on one side surface of the backlight board;

[0024] The diffusion film is disposed on the other side surface of the backlight board;

[0025] The silver reflective film is disposed on the side wall of the backlight board.

[0026] A remote controller provided by the present utility model includes a remote controller front shell, a liquid crystal display screen, and a remote controller bottom shell which are sequentially arranged; it further includes the backlight module disposed between the liquid crystal display screen and the remote controller bottom shell.

[0027] As a further improvement of the present utility model, limiting convex strips for limiting the backlight module are provided on two opposite sides of the remote controller front shell.

[0028] The remote controller provided by the present utility model has the following beneficial effects:

[0029] (1) Convenient for assembly, easy to realize automatic equipment assembly, and improve production efficiency;

[0030] (2) Uniform light emission, having a good backlight display effect, and enhancing the user experience;

[0031] (3) Simple structure, high reliability, and easy to maintain;

[0032] (4) Strong adaptability, suitable for various types of remote controllers. Description of the Drawings

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 It is a schematic structural diagram of one side of the bottom surface of the remote control face shell in the remote control of the present invention;

[0035] Figure 2 It is an exploded structural diagram of the backlight module of the present invention;

[0036] Figure 3 It is a front structural diagram of one embodiment of the backlight board in the backlight module of the present invention;

[0037] Figure 4 It is a side structural diagram of one embodiment of the backlight board in the backlight module of the present invention;

[0038] Figure 5 It is a back structural diagram of one embodiment of the backlight board in the backlight module of the present invention;

[0039] Figure 6 It is a front structural diagram of another embodiment of the backlight board in the backlight module of the present invention;

[0040] Figure 7 It is a side structural diagram of another embodiment of the backlight board in the backlight module of the present invention;

[0041] Figure 8 It is a back structural diagram of another embodiment of the backlight board in the backlight module of the present invention;

[0042] Figure 9 It is a control flow chart of the remote control of the present invention.

[0043] In the figure, 1 is the backlight board; 2 is the backlight source; 3 is the main board; 4 is the light guide hole; 5 is the light inlet hole; 6 is the liquid crystal conductive rubber strip; 7 is the white reflection film; 8 is the diffusion film; 9 is the silver reflection film; 10 is the remote control face shell; 20 is the liquid crystal display screen; 30 is the backlight module; 50 is the limit rib. Detailed implementation manners

[0044] To make the objectives, technical solutions, and advantages of the present utility model clearer, the technical solutions of the present utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present utility model.

[0045] As Figures 1-8 shown, the present utility model provides a backlight module 30, which includes a backlight plate 1, a backlight source 2, a main board 3, and a light guide structure; where:

[0046] The backlight plate 1 and the main board 3 are attached to each other and are limit-connected to the main board 3 through a limit structure;

[0047] The backlight source 2 is arranged on the side of the main board 3 away from the backlight plate 1 to form an external backlight source 2 structure; the external backlight source 2 structure here is relative to the backlight plate 1. Before the improvement, the backlight source 2 was built into the backlight plate 1 as an internal backlight source 2 structure, and after the improvement, the backlight source 2 is externally arranged on the main board 3.

[0048] The light guide structure is arranged on the main board 3 to direct the light emitted by the backlight source 2 to the backlight plate 1.

[0049] It should be noted that the backlight plate 1 is a component that scatters light and can make the irradiated light change from a point to a surface; the backlight source 2 is a light-emitting component used to generate light; the combination of the backlight source 2 and the backlight plate 1 is a backlight module 30.

[0050] For the backlight module 30 provided by the present utility model, after the backlight source 2 is externally arranged on the main board 3, the backlight plate 1 can cancel the internal circuit and pin structure, reducing the production cost of the backlight plate 1; the backlight plate 1 is connected to the main board 3 in a limit connection manner, which is convenient for assembly by automated equipment, improving production efficiency and reducing production cost.

[0051] As Figure 2 shown, as an alternative embodiment of the present utility model, the backlight source 2 is a reverse patch structure. It should be noted that common surface-mounted light-emitting diodes are generally forward-mounted (that is, after mounting, the lamp beads face upward and emit light upward), while the surface-mounted light-emitting diodes used in the present utility model are reverse-mounted (that is, after mounting, the lamp beads face downward and emit light downward), so holes need to be opened on the main board 3 for light transmission. It should be noted that the upward light emission here refers to emitting light away from the main board 3 and the backlight plate 1; and the downward light emission refers to emitting light toward the main board 3 and the backlight plate 1. In order to facilitate the light to pass through the main board 3, a light guide structure is provided on the main board 3 so that the light emitted by the backlight source 2 can pass through the main board 3 and then be projected onto the backlight plate 1 and be diffused by the backlight plate 1.

[0052] By adopting the backlight 2 with a reverse patch structure, the present utility model can achieve downward light emission (emitting light towards the side of the backlight board 1). The light emitted by the light source irradiates the backlight board 1 through the light guide structure on the main board 3. The backlight board 1 scatters the light source and absorbs the overly bright light, thereby achieving uniform light emission and a good backlight display effect.

[0053] As Figure 2 shown, as a further improvement of the present utility model, the number of backlights 2 is two, which are arranged side by side at intervals.

[0054] As Figure 2 shown, as a further improvement of the present utility model, the light guide structure includes light guide holes 4 corresponding to the backlights 2.

[0055] As Figures 3-5 shown, as an alternative embodiment of the present utility model, light incident holes 5 are provided at positions on the backlight board 1 corresponding to the light guide holes 4, and a texture structure capable of scattering the light source and absorbing overly bright light is provided on the light incident holes 5. In this embodiment, the light incident hole 5 is a long strip hole and the number is one.

[0056] As Figures 6-8 shown, as another alternative embodiment of the present utility model, light incident holes 5 are provided at positions on the backlight board 1 corresponding to the light guide holes 4, and a texture structure capable of scattering the light source and absorbing overly bright light is provided on the light incident holes 5. In this embodiment, the number of light incident holes 5 is two, which are arranged at intervals on the backlight board 1.

[0057] It should be noted that texturing is a process for surface treatment of molds, used to create various texture patterns on the surface of products. Texturing can enhance the appearance texture of parts, make the product have anti-slip and anti-rotation characteristics, and prevent light reflection.

[0058] By performing texturing treatment at the light incident holes 5 of the present utility model, the scattering of light on the surface of the product can be strengthened, and overly bright light spots can be avoided.

[0059] By adopting the above structure, compared with the traditional remote control backlight board 1 and backlight 2, in the present utility model, the backlight 2 is externally placed on the main board 3 and reverse patch components are used to achieve the purpose of downward light emission; the light emitted by the light source irradiates the light incident holes 5 of the backlight board 1 through the light guide holes 4 on the main board 3, and the backlight board 1 scatters the light source and absorbs the overly bright light through the texture at the positions of the light incident holes 5, thereby achieving uniform light emission and a good backlight display effect.

[0060] As Figure 1As shown in the figure, as an alternative embodiment of the present utility model, in order to facilitate the installation and automated operation of the backlight panel 1, liquid crystal conductive rubber strips 6 are provided on opposite sides of the main board 3 to form a limiting space between the two liquid crystal conductive rubber strips 6; the edge of the backlight panel 1 abuts against the liquid crystal conductive rubber strips 6 and is assembled in the limiting space in a limiting connection manner.

[0061] It should be noted that the two liquid crystal conductive rubber strips 6 are located on the left and right sides or the upper and lower sides of the backlight panel 1. Specifically, the location depends on the structure of the backlight panel 1. For example, Figures 3-5 as shown in the figure, in this embodiment, the left and right sides of the backlight panel 1 are irregular, while the upper and lower sides are regular. Then, the liquid crystal conductive rubber strips 6 are arranged on the upper and lower sides of the backlight panel 1 for a sliding limit type assembly connection; as Figures 6-8 shown in the figure, in this embodiment, the upper and lower sides of the backlight panel 1 are irregular, while the left and right sides are regular. Then, the liquid crystal conductive rubber strips 6 are arranged on the left and right sides of the backlight panel 1, as Figure 1 shown in the figure, for a sliding limit type assembly connection.

[0062] After the backlight source 2 of the present utility model is externally placed on the main board 3, the backlight panel 1 can cancel the internal circuit and pin structure, reducing the production cost of the backlight panel 1; the backlight panel 1 is an irregular structure and cannot be automatically inserted and welded due to equipment limitations, and can only be completed manually. In the present utility model, the backlight panel 1 is fixed by the upper and lower (or left and right) liquid crystal conductive rubber strips 6. Through the part of the liquid crystal conductive rubber strips 6 that is higher than the liquid crystal display screen 20, the backlight panel 1 is limited between the main board 3 and the liquid crystal display screen 20. The backlight panel 1 can be assembled by the limit sliding of the upper and lower liquid crystal conductive rubber strips 6, which is convenient for the assembly of automated equipment, improves production efficiency, and reduces production costs.

[0063] For example, Figure 1 as shown in the figure, in order to ensure stable limitation, in this embodiment, the length of the liquid crystal conductive rubber strip 6 is not less than the length of the backlight panel 1.

[0064] For example, Figures 3-8 as shown in the figure, in order to achieve point-to-plane scattering of light, a white reflective film 7, a diffusion film 8, and a silver reflective film 9 are provided on the backlight panel 1; among them:

[0065] The white reflective film 7 is provided on one side surface of the backlight panel 1;

[0066] The diffusion film 8 is provided on the other side surface of the backlight panel 1;

[0067] The silver reflective film 9 is provided on the side wall of the backlight panel 1.

[0068] For example, Figure 1 and Figure 2As shown in the figure, the present utility model provides a remote control, which includes a remote control front shell 10, a liquid crystal display screen 20, and a remote control bottom shell arranged in sequence; it further includes a backlight module 30 arranged between the liquid crystal display screen 20 and the remote control bottom shell.

[0069] As a further improvement of the present utility model, limiting ribs 50 for limiting the backlight module 30 are arranged on two opposite sides of the remote control front shell 10. Specifically, the limiting ribs 50 are the protruding parts of the remote control front shell 10, and a limiting step structure is formed through the protruding parts to limit the periphery of the backlight plate 1 together with the two-side liquid crystal conductive rubber strips 6.

[0070] It should be noted that the limiting ribs 50 and the liquid crystal conductive rubber strips 6 limit the periphery of the backlight plate 1. That is, when the liquid crystal conductive rubber strips 6 are located on the left and right sides of the backlight plate 1, the limiting ribs 50 are located on the upper and lower sides of the backlight plate 1; when the liquid crystal conductive rubber strips 6 are located on the upper and lower sides of the backlight plate 1, the limiting ribs 50 are located on the left and right sides of the backlight plate 1.

[0071] In this embodiment, the liquid crystal conductive rubber strips 6 are higher than the height of the liquid crystal display screen 20 and are equivalent to the thickness of the backlight plate 1, and the distance between the upper and lower (or left and right) two liquid crystal conductive rubber strips 6 is equivalent to the length of the backlight plate 1. Therefore, the backlight plate 1 can be limited.

[0072] The backlight plate 1 is pressed on the liquid crystal display screen 20 and the main board 3. That is, from the front of the remote control, the structural order is: remote control front shell 10 - liquid crystal display screen 20 - backlight plate 1 - main board 3 (backlight source 2) - remote control bottom shell.

[0073] The components of the main board 3 are assembled on one side close to the remote control bottom shell. The backlight source 2 is mounted on the side of the main board 3 close to the remote control bottom shell and emits light to the backlight plate 1 through the openings on the main board 3, irradiating the light incident holes on the backlight plate 1. The light incident holes are opened on the side of the backlight plate 1 close to the main board 3, that is, the side covered with the white reflective film. The white reflective film is light-impermeable and is used to reflect light.

[0074] During assembly: first stick the liquid crystal conductive rubber strips 6, and then put the backlight plate 1. The backlight plate is limited around by the liquid crystal conductive rubber strips 6 and the protruding limiting ribs 50 of the remote control front shell 10, and the backlight plate 1 is pressed on the liquid crystal display screen 20 and the main board 3.

[0075] After the backlight source 2 is externally arranged on the main board 3, the backlight plate 1 can cancel the internal circuit and pin structure, thus solving the defects of manual operation in the production process. Its fixing method changes from welding fixation to limiting fixation by the liquid crystal conductive rubber strips 6, and the clamping method can be completed automatically.

[0076] In the remote control of the present utility model, the backlight module 30 is fixed on the main board 3 in a sliding and limited way, which is convenient for assembly, easy to realize automatic equipment assembly, and improves production efficiency. By setting light guide holes on the main board 3 and setting matte textures at the light incident holes 5 of the backlight board 1, the light emission is uniform, with a good backlight display effect and an enhanced user experience.

[0077] The remote control of the present utility model also has the characteristics of simple structure, high reliability, easy maintenance, strong adaptability, and is suitable for various types of remote controls.

[0078] The remote control of the present utility model includes a new backlight module 30, where the backlight module 30 can meet the requirements of automatic equipment assembly, and at the same time has a uniform backlight display effect, realizing the optimization of the production cost and efficiency of the remote control and solving the limitations of traditional backlight methods.

[0079] As Figure 9 shown, the control method of the remote control of the present utility model is as follows:

[0080] After the remote control is powered on, the main board 3 of the remote control starts to work. In the initial state (when just powered on), the backlight source 2 does not work, the liquid crystal display screen 20 of the remote control displays normally, and the backlight source 2 of the remote control is in the off state.

[0081] After the remote control is powered on, the main board 3 of the remote control judges whether a button is pressed through the button circuit.

[0082] If a button is pressed, the liquid crystal conductive rubber strip 6 on the button conducts the button circuit. After the main chip reads the conducted circuit signal, it outputs a low-level signal to the backlight control circuit. The low-level signal makes the backlight control circuit conduct, and the backlight source 2 emits light.

[0083] To avoid structural interference, the backlight source 2 uses reverse surface mount components and emits light downward. As Figure 2 shown, the light source is evenly irradiated onto the light incident holes 5 of the backlight board 1 through the light guide holes 4 of the main board 2. Matte textures are set at the light incident holes 5 of the backlight board 1. The received light source is scattered and the overly bright light is absorbed through the matte textures at the positions of the light incident holes 5. The remaining light is evenly dispersed throughout the backlight board 1 through the white reflective film 7 and the diffusion film 8, so as to emit light evenly.

[0084] If no button is pressed, the button circuit is not conducted. The main chip reads the low-level signal of the button circuit, and then outputs a high-level signal to the backlight control circuit. The high-level signal makes the backlight control circuit cut off, and the backlight source 2 does not emit light. This high-level signal will continue until the main chip detects the next button press.

[0085] The backlight board 1 innovatively adopts a method of being fixed by upper and lower (or left and right) liquid crystal conductive rubber strips 6. As Figure 1As shown, the liquid crystal conductive rubber strip 6 is fixed at the left and right ends of the liquid crystal display screen 20 and the backlight panel 1. The liquid crystal display screen 20 and the backlight panel 1 are limited by the limiting convex strips 50 (protruding structures) of the remote control surface shell 10 up and down and the liquid crystal conductive rubber strips 6 left and right. At the same time, the backlight panel 1 can be assembled by limiting sliding through the liquid crystal conductive rubber strips 6 up and down, which is convenient for the assembly of automated equipment.

[0086] Here, it should be noted first that "inward" is the direction towards the center of the accommodating space, and "outward" is the direction away from the center of the accommodating space.

[0087] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the Figure 1 orientation or positional relationship shown, 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 should not be construed as a limitation to the present invention.

[0088] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "plural" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0089] In the present invention, unless otherwise clearly specified and limited, the terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0090] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the horizontal height of the first feature is less than that of the second feature.

[0091] In the description of this specification, the descriptions referring to terms such as "an embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0092] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A backlight module, characterized in that, It includes a backlight panel, a backlight source, a main board, and a light guide structure; wherein: The backlight panel is fitted with the main board and is connected to the main board in a limiting manner through a limiting structure; The backlight source is arranged on a side of the mainboard away from the backlight panel to form an external backlight source structure; The light guide structure is disposed on the main board to guide the light emitted by the backlight source to the backlight plate.

2. The backlight module according to claim 1, wherein The backlight source is a reverse patch structure.

3. The backlight module according to claim 2, wherein The number of the backlight sources is two, which are arranged side by side and spaced apart.

4. The backlight module according to claim 1, wherein The light guide structure includes light guide holes arranged corresponding to the backlight source.

5. The backlight module according to claim 4, wherein A light entrance hole is arranged on the backlight plate corresponding to the position of the light guide hole, and a sun-scorching structure capable of scattering the light source and absorbing overbright light is arranged on the light entrance hole.

6. The backlight module according to claim 1, characterized in that, Liquid crystal conductive adhesive strips are arranged on two opposite sides of the main board to form a limiting space; the edge of the backlight panel abuts against the liquid crystal conductive adhesive strips and is assembled in the limiting space in a limiting connection manner.

7. The backlight module according to claim 6, wherein, The length of the liquid crystal conductive adhesive strip is not less than the length of the backlight panel.

8. The backlight module according to claim 5, wherein, The backlight panel is provided with a white reflective film, a diffusion film, and a silver reflective film; wherein: The white reflective film is arranged on a side surface of the backlight panel; The diffusion film is arranged on the other side of the backlight plate; The silver reflective film is arranged on the side wall of the backlight plate.

9. A remote control, characterized in that, It comprises a remote control front shell, a liquid crystal display screen, and a remote control bottom shell which are arranged in sequence; and it also comprises a backlight module as described in any one of claims 1 to 8 which is arranged between the liquid crystal display screen and the remote control bottom shell.

10. The remote controller according to claim 9, wherein, The two opposite sides of the remote control housing are provided with limiting convex strips for limiting the backlight module.

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