Multi-connected-screen vehicle-mounted backlight module and vehicle-mounted display device

Abstract

The utility model provides a multi-connected-screen vehicle-mounted backlight module, which comprises a lower frame, a plurality of groups of diaphragm assemblies and a middle frame, the lower frame is provided with an accommodating cavity, the accommodating cavity is provided with at least two first display areas, the first display areas are arranged in parallel, the diaphragm assemblies are respectively arranged in the first display areas, and the diaphragm assemblies are arranged in the middle frame. The middle frame comprises at least two second display areas, the second display areas are arranged in the length direction of the middle frame, the middle frame is connected with the lower frame, and the second display areas correspond to the first display areas. According to the multi-connected-screen vehicle-mounted backlight module, the manufacturing cost can be reduced, transportation and installation are more convenient, and the use experience of customers is improved. The utility model further relates to a vehicle-mounted display device.

Description

Technical Field

[0001] The utility model relates to the technical field of display screens, in particular to a multi-screen vehicle-mounted backlight module and a vehicle-mounted display device. Background Art

[0002] In recent years, with the continuous improvement of people's awareness of driving safety, vehicle-mounted display screens have developed rapidly in the field of automotive electronics. It can provide real-time monitoring and display of the external environment of the vehicle compartment for the driver and passengers, providing guarantee for safe driving, and has become one of the essential devices for traffic safety. Automobile manufacturers have higher and higher requirements for the quality of vehicle-mounted display screens, and at the same time put forward higher requirements for cost control of vehicle-mounted display screens.

[0003] The traditional vehicle-mounted backlight source: adopts a split structure, that is, for a multi-screen vehicle-mounted backlight module, two or more complete middle frames are required to realize the installation of the backlight module of a double-screen or multi-screen. The mold needs to open twice the number of molds, and at the same time, it requires twice the number of machines for production and twice the number of operators, so the production cost and labor cost are relatively high. Summary of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a multi-screen vehicle-mounted backlight module, which can solve the problems existing in the prior art, reduce the manufacturing cost, is more convenient for transportation and installation, and improves the user experience of customers.

[0005] The utility model provides a multi-screen vehicle-mounted backlight module, which includes a lower frame, multiple groups of film components and a middle frame. The lower frame is provided with a receiving cavity, and the receiving cavity is provided with at least two first display areas. Each of the first display areas is arranged in parallel, and each of the film components is respectively arranged in each of the first display areas. The middle frame includes at least two second display areas, and each of the second display areas is arranged along the length direction of the middle frame. The middle frame is connected to the lower frame, and each of the second display areas is correspondingly arranged with each of the first display areas.

[0006] In one embodiment, the length of the middle frame is 1m to 1.8m.

[0007] In one embodiment, the middle frame includes a first sub-frame and a second sub-frame. The first sub-frame and the second sub-frame are respectively in a U shape. The first sub-frame includes a first end portion and a second end portion arranged at intervals. The first end portion is fixedly connected with a first connecting portion, and the second end portion is fixedly connected with a second connecting portion. The second sub-frame includes a third end portion and a fourth end portion arranged at intervals. The third end portion is fixedly connected with a third connecting portion, and the fourth end portion is fixedly connected with a fourth connecting portion. The first connecting portion is detachably connected with the third connecting portion, and the second connecting portion is detachably connected with the fourth connecting portion.

[0008] In one embodiment, the first connecting portion is a first claw, the third connecting portion is a first through hole, the first claw is disposed within the first through hole, the second connecting portion is a second claw, the fourth connecting portion is a second through hole, and the second claw is disposed within the second through hole.

[0009] In one embodiment, the first claw is elastic, and the second claw is elastic.

[0010] In one embodiment, the first connecting portion includes a first hook portion and a first locking portion, the first hook portion is linked and connected with the first locking portion, the third connecting portion is a first groove, when the first hook portion is disposed within the first groove and the first hook portion and the first locking portion are located on the same horizontal plane, the first connecting portion is fixedly connected with the third connecting portion, when the first hook portion and the first locking portion form an included angle, the first connecting portion is detachable from the third connecting portion; the second connecting portion includes a second hook portion and a second locking portion, the second hook portion is linked and connected with the second locking portion, the fourth connecting portion is a second groove, when the second hook portion is disposed within the second groove and the second hook portion and the second locking portion are located on the same horizontal plane, the second connecting portion is fixedly connected with the fourth connecting portion, when the second hook portion and the second locking portion form an included angle, the second connecting portion is detachable from the fourth connecting portion.

[0011] In one embodiment, the end face between the first connecting portion and the third connecting portion is in meshing connection, and the end face between the second connecting portion and the fourth connecting portion is in meshing connection.

[0012] In one embodiment, the diaphragm assembly includes a reflective film, a light guide plate, and an optical film. The reflective film is disposed on the bottom plate of the lower frame, the light guide plate is disposed on the reflective film, and the optical film is disposed on the light guide plate.

[0013] In one embodiment, the multi-screen vehicle-mounted backlight module further includes a light bar, and the light bar is fixedly connected to the side wall of the lower frame.

[0014] The present invention also relates to a vehicle-mounted display device, including the above multi-screen vehicle-mounted backlight module.

[0015] The lower frame of the multi-screen vehicle-mounted backlight module of the present invention is provided with a receiving cavity, at least two first display areas are provided within the receiving cavity, the middle frame is provided with at least two second display areas, and the second display areas are correspondingly arranged with the first display areas, that is, independent control of a double-screen or multi-screen can be achieved through one middle frame and one lower frame, which not only saves manufacturing costs, reduces labor, but also improves the user experience of customers. Description of the Drawings

[0016] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related accompanying drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the split structure of the vehicle-mounted backlight module according to the first embodiment of the present utility model.

[0018] Figure 2 It is a schematic cross-sectional view of the middle frame according to the first embodiment of the present utility model.

[0019] Figure 3 It is a schematic diagram of the partial structure of the connection between the first sub-frame and the second sub-frame according to the first embodiment of the present utility model.

[0020] Figure 4 It is a schematic diagram of the partial structure of the connection between the first sub-frame and the second sub-frame according to another preferred embodiment of the present utility model.

[0021] Figure 5 It is a schematic diagram of the structure when the first sub-frame and the second sub-frame are separated according to the second embodiment of the present utility model.

[0022] Figure 6 It is a schematic diagram of the structure when the first sub-frame and the second sub-frame are connected according to the second embodiment of the present utility model.

[0023] Explanation of the reference numerals in the drawings: accommodation cavity - 101; lower frame - 11; middle frame - 12; first sub-frame - 121; first end - 1211; first end face - 12111; second end - 1212; first connecting portion - 1213; first hook portion - 12131; first locking portion - 12132; second sub-frame - 122; third end - 1221; second end face - 12211; fourth end - 1222; third connecting portion - 1223; reflection film - 131; light guide plate - 132; diffusion film - 1331; brightness enhancement film - 1332; brightness increasing film - 1333; lamp strip - 14; foam adhesive - 15.

[0024] The realization of the object, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0025] The following will describe in detail specific embodiments of the present utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the description of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0026] In the description of the present utility model, unless otherwise clearly defined and limited, terms such as "set", "installed", "connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.

[0027] The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of description and simplification of 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 utility model.

[0028] Terms such as "first", "second", "third", etc. are only used to distinguish elements with similar attributes, rather than indicating or implying relative importance or a specific order.

[0029] The term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion. In addition to including the listed elements, it may also include other elements not specifically listed.

[0030] First Embodiment

[0031] As Figures 1 to 3 shown, the multi-screen vehicle-mounted backlight module includes a lower frame 11, multiple groups of film components, and a middle frame 12. The lower frame 11 is provided with a receiving cavity 101, and the receiving cavity 101 is provided with at least two first display areas. Each first display area is arranged in parallel, and each film component is respectively arranged in each first display area. The middle frame 12 includes at least two second display areas. Each second display area is arranged along the length direction of the middle frame 12. The middle frame 12 is connected to the lower frame 11, and each second display area is correspondingly arranged with each first display area. Among them, the length of the middle frame 12 is 1 m to 1.8 m, preferably 1 m, 1.5 m, or 1.8 meters, etc. The length of the middle frame 12 refers to the length of the complete middle frame 12.

[0032] The lower frame 11 of the multi-screen vehicle-mounted backlight module of the present utility model is provided with a receiving cavity 101, and at least two first display areas are arranged in the receiving cavity 101. The middle frame 12 is provided with at least two second display areas, and the second display areas are arranged corresponding to the first display areas. That is, independent control of a dual-screen or multi-screen can be achieved through a middle frame 12 and a lower frame 11, which not only saves manufacturing costs, reduces labor, but also improves the user experience of customers.

[0033] Preferably, the middle frame 12 includes a first sub-frame 121 and a second sub-frame 122. The first sub-frame 121 and the second sub-frame 122 are respectively U-shaped. The first sub-frame 121 includes a first end 1211 and a second end 1212 arranged at intervals. A first connecting portion 1213 is fixedly connected to the first end 1211, and a second connecting portion is fixedly connected to the second end 1212. The second sub-frame 122 includes a third end 1221 and a fourth end 1222 arranged at intervals. A third connecting portion 1223 is fixedly connected to the third end 1221, and a fourth connecting portion is fixedly connected to the fourth end 1222. The first connecting portion 1213 is detachably connected to the third connecting portion 1223, and the second connecting portion is detachably connected to the fourth connecting portion.

[0034] As Figure 3 shown, the first connecting portion 1213 is a first claw, the third connecting portion 1223 is a first through hole, the first claw is arranged in the first through hole, the second connecting portion is a second claw, the fourth connecting portion is a second through hole, and the second claw is arranged in the second through hole. The first claw has elasticity, and the second claw has elasticity. When connecting the first sub-frame 121 and the second sub-frame 122, hold the first claw and press it to make the first claw contract. At the same time, pass the first claw through the first through hole, and then release the first claw. After the first claw rebounds by its elastic force, the first claw catches the third connecting portion 1223; hold the second claw and press it to make the second claw contract. At the same time, pass the second claw through the second through hole, and then release the second claw. After the second claw rebounds by its elastic force, the second claw catches the fourth connecting portion.

[0035] Preferably, the end of the first connecting portion 1213 is provided with a first end face 12111, the third connecting portion 1223 is provided with a second end face 12211, the first end face 12111 and the second end face 12211 are respectively planes, and the first end face 12111 contacts or abuts against the second end face 12211, so that the first sub-frame 121 and the second sub-frame 122 are spliced into an integral structure, and at the same time, the phenomenon of light leakage is avoided. In other embodiments, the first end face 12111 and the second end face 12211 are connected by a black tape to avoid the phenomenon of light leakage.

[0036] In another preferred embodiment, as Figure 4As shown, the end faces between the first end face 12111 of the first connection part 1213 and the second end face 12211 of the third connection part 1223 are meshing connections, and the end faces between the second connection part and the fourth connection part are meshing connections, thus avoiding the phenomenon of light leakage.

[0037] Preferably, the diaphragm assembly includes a reflective film 131, a light guide plate 132 and optical films. The reflective film 131 is disposed on the bottom plate of the lower frame 11, the light guide plate 132 is disposed on the reflective film 131, and the optical films are disposed on the light guide plate 132. The optical films include a diffusion film 1331, a brightness enhancement film 1332 and a brightening film 1333. The diffusion film 1331 is disposed on the light guide plate 132, the brightness enhancement film 1332 is disposed on the diffusion film 1331, and the brightening film 1333 is disposed on the brightness enhancement film 1332. Among them, the diffusion film is fixedly connected to the light guide plate 132 through double-sided adhesive, and the diffusion film 1331, the brightness enhancement film 1332 and the brightening film 1333 can be fixedly connected by means of double-sided adhesive.

[0038] Preferably, the multi-screen vehicle-mounted backlight module further includes a light bar 14, and the light bar 14 is fixedly connected to the side wall of the lower frame 11. In this embodiment, the light bar 14 includes a flexible circuit board and a plurality of LED lights. The plurality of LED lights are electrically connected to the flexible circuit board, and each LED light is arranged along the length direction of the flexible circuit board. The flexible circuit board is fixedly connected to the inner wall of the lower frame 11 through heat-conducting double-sided adhesive.

[0039] Preferably, the multi-screen vehicle-mounted backlight module further includes a foam adhesive 15, and the foam adhesive 15 is disposed on the side wall of the lower frame 11. The foam adhesive 15 is used for buffering and fixing the display screen.

[0040] Second Embodiment

[0041] As Figure 5 and Figure 6 shown, the multi-screen vehicle-mounted backlight module of this embodiment is substantially the same in structure as the multi-screen vehicle-mounted backlight module of the first embodiment, and the difference lies in the different structure of the middle frame 12.

[0042] Specifically, the first connecting portion 1213 includes a first hook portion 12131 and a first locking portion 12132. The first hook portion 12131 is linked and connected to the first locking portion 12132. The third connecting portion 1223 is a first groove. When the first hook portion 12131 is disposed in the first groove and the first hook portion 12131 and the first locking portion 12132 are located on the same horizontal plane, the first connecting portion 1213 is fixedly connected to the third connecting portion 1223. When an included angle is formed between the first hook portion 12131 and the first locking portion 12132, the first connecting portion 1213 and the third connecting portion 1223 are detachable; the second connecting portion includes a second hook portion and a second locking portion. The second hook portion is linked and connected to the second locking portion. The fourth connecting portion is a second groove. When the second hook portion is disposed in the second groove and the second hook portion and the second locking portion are located on the same horizontal plane, the second connecting portion is fixedly connected to the fourth connecting portion. When an included angle is formed between the second hook portion and the second locking portion, the second connecting portion and the fourth connecting portion are detachable.

[0043] The present invention also relates to a vehicle-mounted display device, which includes the above-mentioned multi-screen vehicle-mounted backlight module. The vehicle-mounted display device of the present invention is, for example, a high-end vehicle-mounted instrument, a vehicle-mounted central control display, a vehicle-mounted driving recorder, a vehicle-mounted DVD navigation, a vehicle-mounted integrated display on the driver's console, or a vehicle-mounted streaming media rearview mirror, etc., but is not limited thereto.

[0044] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any change or replacement that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A multi-screen vehicle backlight module, characterized in that, It includes a lower frame (11), multiple groups of diaphragm components, and a middle frame (12). The lower frame (11) is provided with a receiving cavity (101). The receiving cavity (101) is provided with at least two first display areas, and each of the first display areas is arranged in parallel. Each of the diaphragm components is respectively arranged in each of the first display areas. The middle frame (12) includes at least two second display areas, and each of the second display areas is arranged along the length direction of the middle frame (12). The middle frame (12) is connected to the lower frame (11), and each of the second display areas is correspondingly arranged with each of the first display areas.

2. The multi-screen vehicle backlight module according to claim 1, wherein The length of the middle frame (12) is 1m to 1.8m.

3. The multi-screen vehicle backlight module according to claim 2, wherein, The middle frame (12) includes a first sub-frame (121) and a second sub-frame (122). The first sub-frame (121) and the second sub-frame (122) are respectively in a U shape. The first sub-frame (121) includes a first end portion (1211) and a second end portion (1212) arranged at intervals. The first end portion (1211) is fixedly connected with a first connecting portion (1213), and the second end portion (1212) is fixedly connected with a second connecting portion. The second sub-frame (122) includes a third end portion (1221) and a fourth end portion (1222) arranged at intervals. The third end portion (1221) is fixedly connected with a third connecting portion (1223), and the fourth end portion (1222) is fixedly connected with a fourth connecting portion. The first connecting portion (1213) is detachably connected to the third connecting portion (1223), and the second connecting portion is detachably connected to the fourth connecting portion.

4. The multi-screen vehicle backlight module according to claim 3, characterized in that, The first connecting portion (1213) is a first claw, the third connecting portion (1223) is a first through hole, the first claw is arranged in the first through hole, the second connecting portion is a second claw, the fourth connecting portion is a second through hole, and the second claw is arranged in the second through hole.

5. The multi-screen vehicle backlight module according to claim 4, wherein, The first claw has elasticity, and the second claw has elasticity.

6. The multi-screen vehicle backlight module according to claim 3, wherein The first connecting portion (1213) includes a first hook portion (12131) and a first locking portion (12132). The first hook portion (12131) is linked and connected to the first locking portion (12132). The third connecting portion (1223) is a first groove. When the first hook portion (12131) is disposed in the first groove and the first hook portion (12131) and the first locking portion (12132) are located on the same horizontal plane, the first connecting portion (1213) is fixedly connected to the third connecting portion (1223). When an included angle is formed between the first hook portion (12131) and the first locking portion (12132), the first connecting portion (1213) and the third connecting portion (1223) are detachable; The second connecting portion includes a second hook portion and a second locking portion. The second hook portion is linked and connected to the second locking portion. The fourth connecting portion is a second groove. When the second hook portion is disposed in the second groove and the second hook portion and the second locking portion are located on the same horizontal plane, the second connecting portion is fixedly connected to the fourth connecting portion. When an included angle is formed between the second hook portion and the second locking portion, the second connecting portion and the fourth connecting portion are detachable.

7. The multi-screen vehicle backlight module according to claim 5 or 6, characterized in that The end faces between the first connecting portion (1213) and the third connecting portion (1223) are meshing connections, and the end faces between the second connecting portion and the fourth connecting portion are meshing connections.

8. The multi-screen vehicle backlight module according to claim 7, wherein The diaphragm assembly includes a reflective film (131), a light guide plate (132), and an optical film. The reflective film (131) is disposed on the bottom plate of the lower frame (11), the light guide plate (132) is disposed on the reflective film (131), and the optical film is disposed on the light guide plate (132).

9. The multi-screen vehicle backlight module according to claim 8, characterized in that, The multi-screen vehicle-mounted backlight module further includes a light bar (14), and the light bar (14) is fixedly connected to the side wall of the lower frame (11).

10. A vehicle-mounted display device, characterized in that, It includes the multi-screen vehicle-mounted backlight module according to any one of claims 1 to 9.

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