Vehicle-mounted backlight structure

Abstract

The utility model relates to a vehicle-mounted backlight structure. The vehicle-mounted backlight structure comprises an iron frame, a rubber frame, a diaphragm assembly and a protection assembly, wherein the rubber frame is arranged on the iron frame; the diaphragm assembly is arranged on the iron frame, and a display area is arranged between the diaphragm assembly and the rubber frame; the protection assembly comprises a flexible part, the flexible part is located in the display area, one side face of the flexible part is arranged on the diaphragm assembly, and the other side face of the flexible part is arranged on the rubber frame. According to the scheme, foreign matter can be prevented from appearing in the display visual area, and the good display effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight modules, in particular to a vehicle-mounted backlight structure. Background Art

[0002] At present, the common structure of the vehicle-mounted backlight structure is a plastic frame and an iron frame. The optical film and light guide plate are set on the lower iron frame, and then the iron frame is installed on the plastic frame.

[0003] In related technologies, the optical film is made of PET and the light guide plate is made of PC. As a result, the optical film and light guide plate expand and contract with heat and cold, so a gap is usually left between the adhesive frame and the optical film to prevent the film from wrinkling due to lack of space for expansion at high temperatures. However, this gap can easily cause foreign matter, generated by friction between the iron frame and the adhesive frame, to enter the display area during transportation, resulting in foreign matter in the display area, causing poor light emission and seriously affecting the display effect. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a vehicle-mounted backlight structure that can prevent foreign matter from appearing in the display viewing area and ensure a good display effect.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] The first aspect of the present application provides a vehicle-mounted backlight structure, comprising: an iron frame; a plastic frame, the plastic frame being arranged on the iron frame; a diaphragm assembly, the diaphragm assembly being arranged on the iron frame, and a display area being arranged between the diaphragm assembly and the plastic frame; a protective assembly, the protective assembly comprising a flexible member, the flexible member being located in the display area, one side of the flexible member being arranged on the diaphragm assembly, and the other side of the flexible member being arranged on the plastic frame.

[0007] The film assembly includes a first brightness enhancement film and a second brightness enhancement film, wherein the first brightness enhancement film is disposed on the second brightness enhancement film.

[0008] The film assembly further includes a diffusion film, a light guide plate and a reflective plate. The second light-enhancing film is arranged on the diffusion film, the diffusion film is arranged on the light guide plate, the light guide plate is arranged on the reflective plate, and the reflective plate is arranged on the iron frame.

[0009] The flexible component includes a first adhesive layer, foam and a second adhesive layer. One side of the first adhesive layer is adhered to the first brightness enhancement film, the other side of the first adhesive layer is arranged on one side of the foam, the other side of the foam is arranged on one side of the second adhesive layer, and the other side of the second adhesive layer is adhered to the adhesive frame.

[0010] The flexible member further includes a first release film, and the first release film is disposed on the first adhesive layer.

[0011] The flexible member further includes a second release film, and the second release film is arranged on the second adhesive layer.

[0012] The viscosity of the first adhesive layer on a side close to the foam is greater than the viscosity of the first adhesive layer on a side away from the foam.

[0013] The viscosity of the second adhesive layer on a side close to the foam is greater than the viscosity of the second adhesive layer on a side away from the foam.

[0014] The thickness of the first adhesive layer is the same as that of the second adhesive layer.

[0015] The thickness of the foam is in the range of 0.4 mm to 0.6 mm.

[0016] Compared with the prior art, the present invention has at least the following advantages:

[0017] By providing a flexible member located at the opening of the display area, the flexible member can effectively prevent foreign matter generated by friction between the rubber frame and the iron frame from entering the display area, ensuring the display effect. At the same time, because the flexible member can deform, it does not restrict the space for normal thermal expansion and contraction of the diaphragm assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for use in the embodiments.

[0019] Figure 1 This is a schematic structural diagram of a vehicle-mounted backlight structure in one embodiment of the present utility model;

[0020] Figure 2 Schematic diagram of the structure of the flexible member in one embodiment of the present invention. DETAILED DESCRIPTION

[0021] The following describes embodiments of the present application in more detail with reference to the accompanying drawings. Although the accompanying drawings illustrate embodiments of the present application, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0022] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. 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.

[0023] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," and the like should be interpreted broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0024] The optical film is made of PET and the light guide plate is made of PC. As a result, the optical film and light guide plate expand and contract with heat and cold, so there's usually a gap between the adhesive frame and the optical film to prevent the film from wrinkling due to lack of space for expansion at high temperatures. However, this gap can easily cause foreign matter from friction between the iron frame and the adhesive frame to enter the display area during transportation, resulting in poor light emission and a serious impact on the display quality.

[0025] In response to the above problems, an embodiment of the present application provides a vehicle-mounted backlight structure that can prevent foreign matter from appearing in the display field of view and ensure a good display effect.

[0026] The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0027] See Figure 1 A vehicle-mounted backlight structure includes: an iron frame 100, a plastic frame 200, a diaphragm assembly 300 and a protective assembly 400, the plastic frame 200 is arranged on the iron frame 100; the diaphragm assembly 300 is arranged on the iron frame 100, and a display area 500 is arranged between the diaphragm assembly 300 and the plastic frame 200; the protective assembly 400 includes a flexible component 410, the flexible component 410 is located in the display area 500, one side of the flexible component 410 is arranged on the diaphragm assembly 300, and the other side of the flexible component 410 is arranged on the plastic frame 200.

[0028] It should be noted that by providing flexible member 410, located at the opening of display area 500, it effectively prevents foreign matter generated by friction between plastic frame 200 and iron frame 100 from entering display area 500, thereby ensuring a good display effect. Furthermore, because flexible member 410 is deformable, it does not restrict the space for normal thermal expansion and contraction of diaphragm assembly 300.

[0029] See Figure 1 In one embodiment, the film assembly 300 includes a first brightness enhancement film 310 and a second brightness enhancement film 320, wherein the first brightness enhancement film 310 is disposed on the second brightness enhancement film 320. Specifically, the film assembly 300 further includes a diffusion film 330, a light guide plate 340, and a reflective plate 350. The second brightness enhancement film 320 is disposed on the diffusion film 330, the diffusion film 330 is disposed on the light guide plate 340, the light guide plate 340 is disposed on the reflective plate 350, and the reflective plate 350 is disposed on the iron frame 100.

[0030] It should be noted that the diaphragm assembly 300 can adjust the light emitted by the backlight source.

[0031] See Figure 2 In one embodiment, the flexible member 410 includes a first adhesive layer 411, a foam 412, and a second adhesive layer 413. One side of the first adhesive layer 411 is adhered to the first brightness enhancement film 310, and the other side of the first adhesive layer 411 is disposed on a side of the foam 412. The other side of the foam 412 is disposed on a side of the second adhesive layer 413, and the other side of the second adhesive layer 413 is adhered to the adhesive frame 200. Preferably, the thickness of the first adhesive layer 411 is the same as that of the second adhesive layer 413. Preferably, the thickness of the foam 412 ranges from 0.4 mm to 0.6 mm.

[0032] It should be noted that the foam 412 is soft. This allows the diaphragm assembly 300 to expand within the display area 500 when subjected to high temperatures, thus preventing wrinkles. To ensure sufficient expansion space, if the compression rate of the foam 412 is 50%, the thickness of the foam 412 can be 0.6 mm, and the first and second adhesive layers 411, 413 can be 0.05 mm thick. If the display area 500 is thinner, the foam 412 can be made of a foam with a higher compression rate. For example, if the compression rate is 80%, the thickness of the foam 412 can be 0.4 mm.

[0033] See Figure 2 In one embodiment, the flexible member 410 further includes a first release film 414 disposed on the first adhesive layer 411 . Specifically, the flexible member 410 further includes a second release film 415 disposed on the second adhesive layer 413 .

[0034] It can be understood that the first release film 414 and the second release film 415 are used to protect the first adhesive layer 411 and the second adhesive layer 413 before pasting.

[0035] See Figure 2 In one embodiment, the viscosity of the first adhesive layer 411 near the foam 412 is greater than the viscosity of the first adhesive layer 411 away from the foam 412. Specifically, the viscosity of the second adhesive layer 413 near the foam 412 is greater than the viscosity of the second adhesive layer 413 away from the foam.

[0036] It is understandable that the side of the adhesive layer in contact with the first brightness enhancement film 310 has a weaker viscosity mainly to avoid the problem of film wrinkles caused by strong adhesive film, while the side with stronger viscosity can be well bonded to the foam 412.

[0037] The scheme of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have their own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the description are not necessarily required for this application. In addition, it is understood that the steps in the method of the embodiment of the present application can be adjusted in sequence, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0038] The embodiments of the present application have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. A vehicle-mounted backlight structure, characterized in that: include: iron frame; A glue rack, the glue rack being arranged on the iron frame; A diaphragm assembly is provided on the iron frame, and a display area is provided between the diaphragm assembly and the plastic frame; The protective component includes a flexible member, the flexible member is located in the display area, one side of the flexible member is arranged on the diaphragm component, and the other side of the flexible member is arranged on the glue frame.

2. The vehicle-mounted backlight structure according to claim 1, characterized in that: The film assembly includes a first brightness enhancement film and a second brightness enhancement film, wherein the first brightness enhancement film is disposed on the second brightness enhancement film.

3. The vehicle-mounted backlight structure according to claim 2, characterized in that: The film assembly further includes a diffusion film, a light guide plate and a reflective plate. The second light-enhancing film is arranged on the diffusion film, the diffusion film is arranged on the light guide plate, the light guide plate is arranged on the reflective plate, and the reflective plate is arranged on the iron frame.

4. The vehicle-mounted backlight structure according to claim 2, characterized in that: The flexible component includes a first adhesive layer, foam and a second adhesive layer. One side of the first adhesive layer is adhered to the first brightness enhancement film, the other side of the first adhesive layer is arranged on one side of the foam, the other side of the foam is arranged on one side of the second adhesive layer, and the other side of the second adhesive layer is adhered to the adhesive frame.

5. The vehicle-mounted backlight structure according to claim 4, characterized in that: The flexible member further includes a first release film, and the first release film is disposed on the first adhesive layer.

6. The vehicle-mounted backlight structure according to claim 4, characterized in that: The flexible member further includes a second release film, and the second release film is arranged on the second adhesive layer.

7. The vehicle-mounted backlight structure according to claim 4, characterized in that: The viscosity of the first adhesive layer on a side close to the foam is greater than the viscosity of the first adhesive layer on a side away from the foam.

8. The vehicle-mounted backlight structure according to claim 4, characterized in that: The viscosity of the second adhesive layer on a side close to the foam is greater than the viscosity of the second adhesive layer on a side away from the foam.

9. The vehicle-mounted backlight structure according to claim 8, characterized in that: The thickness of the first adhesive layer is the same as that of the second adhesive layer.

10. The vehicle-mounted backlight structure according to claim 9, characterized in that: The thickness of the foam is in the range of 0.4 mm to 0.6 mm.

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