Vehicle-mounted display module capable of preventing glue from entering

Abstract

The utility model discloses a vehicle-mounted display module capable of preventing glue from entering, which relates to the field of display modules and comprises a shell, a backlight glue frame is mounted in the shell, a backlight module and a display module are stacked in the backlight glue frame, a sealing glue layer is arranged on the upper surface of the backlight glue frame around the backlight module, and the display module is fixedly adhered to the backlight glue frame through the sealing glue layer. Sealing glue is arranged between the display module and the backlight glue frame around the sealing glue layer, and the upper surface of the shell is bonded with the cover plate through the glue layer. According to the vehicle-mounted display module capable of preventing glue from entering, the display module and the backlight glue frame are bonded and fixed through the sealing glue layer, the connecting portion of the display module and the backlight glue frame is sealed through the sealing glue, the sealing performance of the vehicle-mounted display module is improved, and when the cover plate passes through the AB glue and the display device, the sealing performance of the vehicle-mounted display module is improved. According to the vehicle-mounted display module, glue can be prevented from entering the backlight module, the backlight film material is protected, the waterproof performance of the vehicle-mounted display module can be improved, and the product competitiveness is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, in particular to an in-vehicle display module that prevents glue from entering. Background Technique

[0002] IML, that is, in-mold insert molding. Since IML can be used for injection molding and can be matched with many vehicle-mounted display screens, many existing vehicle-mounted display screens use IML to make the display cover plates. Patent Application No. 202322008508.3 discloses a casting structure and an in-vehicle display module for improving assembly accuracy, including a casting body. The casting body includes a backlight placement area and a cover plate bonding area. The backlight placement area is arranged in the middle of the casting body and is used for installing and placing the backlight. The cover plate bonding area is arranged around the backlight placement area and is used for adhesively fixing the cover plate of the display module. On the cover plate bonding area, there are several cured UV glue areas and bonding glue dispensing areas. The thickness of the glue on the bonding glue dispensing area is equal to the thickness of the cured UV glue area. Another example is Patent Application No. 202320899036.2, which discloses an in-vehicle liquid crystal display module for improving the adhesive force of glue. It includes a cover plate and a frame-shaped glue rack arranged below the cover plate. Four long and narrow grooves are opened downward on the upper surface of the frame-shaped glue rack. The four long and narrow grooves are sequentially enclosed into a frame shape, and the four long and narrow grooves do not connect end to end. Each long and narrow groove is provided with a bonding glue. The height of the bonding glue is greater than the depth of the long and narrow groove. The cover plate and the frame-shaped glue rack are adhesively fixed through the bonding glue.

[0003] When the IML cover plate is bonded to the display module, due to the various shapes of the IML cover plates, traditional UV glue is difficult to be completely cured. Therefore, thermosetting AB glue is generally selected more often. However, due to the long curing time of the AB component glue, there is a risk that the glue will enter the backlight, resulting in the contamination of the backlight film material. Therefore, the utility model discloses an in-vehicle display module that prevents glue from entering to solve the above problems. Summary of the Utility Model

[0004] Based on this, in order to solve the above technical problems, it is necessary to provide an in-vehicle display module that prevents glue from entering. The display module and the backlight glue rack are adhesively fixed through a sealing glue layer, and the connection part between the display module and the backlight glue rack is sealed through a sealing glue, improving the sealing performance of the in-vehicle display module. When the cover plate is bonded to the display device through AB glue, it can prevent the glue from entering the backlight module, protect the backlight film material, and also improve the waterproof performance of the in-vehicle display module, enhancing the product competitiveness.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] An anti-injection vehicle display module, which comprises a housing. A backlight glue holder is installed inside the housing. A backlight module and a display module are stacked inside the backlight glue holder. A sealing glue layer is arranged around the backlight module on the upper surface of the backlight glue holder. The display module is adhesively fixed to the backlight glue holder through the sealing glue layer. A sealing glue is arranged between the display module and the backlight glue holder around the sealing glue layer. The upper surface of the housing is adhesively bonded to a cover plate through a glue layer.

[0007] As a preferred embodiment of the anti-injection vehicle display module provided by the present invention, the display module comprises a visible area and an invisible area, and the sealing glue layer is arranged in the invisible area of the display module.

[0008] As a preferred embodiment of the anti-injection vehicle display module provided by the present invention, the sealing glue layer is a double-sided adhesive.

[0009] As a preferred embodiment of the anti-injection vehicle display module provided by the present invention, the sealing glue layer is a hot melt adhesive or an RTV adhesive.

[0010] As a preferred embodiment of the anti-injection vehicle display module provided by the present invention, the backlight module comprises a reflective film, a light guide plate and a film layer which are arranged in sequence from bottom to top.

[0011] As a preferred embodiment of the anti-injection vehicle display module provided by the present invention, the display module comprises a lower polarizer, a lower layer of glass, an upper layer of glass and an upper polarizer which are stacked in sequence from bottom to top. One end of the lower layer of glass extends outwards and is provided with a driving IC, and an FPC is bonded to the lower layer of glass.

[0012] As a preferred embodiment of the anti-injection vehicle display module provided by the present invention, a sealing tape is pasted at the connection position between the display module and the FPC, and the sealing tape is adhesively fixed to the housing.

[0013] As a preferred embodiment of the anti-injection vehicle display module provided by the present invention, it further comprises a backlight source, and the backlight source is arranged inside the backlight glue holder and on one side of the backlight module.

[0014] As a preferred embodiment of the anti-injection vehicle display module provided by the present invention, two mounting parts are arranged on the outer side of the housing, and mounting holes are arranged on the mounting parts.

[0015] As a preferred embodiment of the anti-injection vehicle display module provided by the present invention, a protective film is arranged on the upper surface of the cover plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The anti-glue-inflow vehicle-mounted display module provided by the present utility model bonds and fixes the display module to the backlight glue holder through a sealant layer, and seals the connection part between the display module and the backlight glue holder through a sealant, improving the sealing performance of the vehicle-mounted display module. When the cover plate is bonded to the display device through AB glue, it can prevent glue from entering the backlight module, protect the backlight film material, and also improve the waterproof performance of the vehicle-mounted display module, enhancing the product competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the solutions in the present utility model, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic plan view of the backlight structure of the anti-glue-inflow vehicle-mounted display module provided by the present utility model;

[0020] Figure 2 is Figure 1 the schematic cross-sectional view taken along line A-A in

[0021] Figure 3 is Figure 2 the schematic view of a partial structure in

[0022] Figure 4 It is a schematic sealing view after the display module and the FPC are connected in the anti-glue-inflow vehicle-mounted display module provided by the present utility model;

[0023] Figure 5 It is a schematic plan view after the display module and the cover plate are bonded in the anti-glue-inflow vehicle-mounted display module provided by the present utility model.

[0024] The reference numerals in the figures are explained as follows:

[0025] 1. Housing; 2. Backlight glue holder; 3. Backlight module; 31. Reflective film; 32. Light guide plate; 33. Film material layer; 4. Display module; 41. Lower polarizer; 42. Lower layer glass; 43. Upper layer glass; 44. Upper polarizer; 45. Driver IC; 5. Sealant layer; 6. Sealant; 7. Cover plate; 8. Backlight; 9. Mounting part; 10. Mounting hole; 11. Protective film; 12. FPC; 13. Sealing tape. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] To enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] As described in the background art, when the IML cover plate is attached to the display module, due to the various shapes of the IML cover plate, it is difficult for traditional UV glue to be completely cured. Therefore, heat-curing AB glue is generally selected more often. However, due to the long curing time of the AB-component glue, it is easy for the glue to enter the backlight, resulting in the risk of contamination of the backlight film material.

[0028] To solve this technical problem, the present utility model provides an anti-glue-inflow vehicle-mounted display module, which is applied to the field of display modules.

[0029] Specifically, please refer to Figures 1-5 , the anti-glue-inflow vehicle-mounted display module specifically includes a housing 1, a backlight glue holder 2 is installed inside the housing 1, a backlight module 3 and a display module 4 are stacked inside the backlight glue holder 2, a sealing glue layer 5 is provided around the backlight module 3 on the upper surface of the backlight glue holder 2, the display module 4 is adhesively fixed to the backlight glue holder 2 through the sealing glue layer 5, a sealing glue 6 is provided around the sealing glue layer 5 between the display module 4 and the backlight glue holder 2, and the upper surface of the housing 1 is adhesively bonded to the cover plate 7 through a glue layer.

[0030] The anti-glue-inflow vehicle-mounted display module 4 provided by the present utility model adhesively fixes the display module 4 to the backlight glue holder 2 through the sealing glue layer 5, and seals the connection part between the display module 4 and the backlight glue holder 2 through the sealing glue 6, improving the sealing performance of the vehicle-mounted display module 4. When the cover plate 7 is attached to the display device through AB glue, it can prevent the glue from entering the backlight module 3, protect the backlight film material, and also improve the waterproof performance of the vehicle-mounted display module 4, enhancing the product competitiveness.

[0031] To enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings.

[0032] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0033] It should be noted that like reference numerals and letters refer to like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] Please refer to Figures 1-5 , there is provided an anti-injection vehicle display module 4, which includes a housing 1. A backlight glue holder 2 is installed inside the housing 1. A backlight module 3 and a display module 4 are stacked inside the backlight glue holder 2. A sealant layer 5 is provided around the backlight module 3 on the upper surface of the backlight glue holder 2. The display module 4 is adhesively fixed to the backlight glue holder 2 through the sealant layer 5. A sealant glue 6 is provided between the display module 4 and the backlight glue holder 2 around the sealant layer 5. The upper surface of the housing 1 is adhesively bonded to a cover plate 7 through an adhesive layer.

[0035] The display module 4 includes a visible area and an invisible area. The sealant layer 5 is provided in the invisible area of the display module 4. The sealant layer 5 is a double-sided adhesive. The display module 4 is hermetically bonded to the backlight glue holder 2 through the sealant layer 5, and the backlight module 3 is sealed in cooperation with the sealant glue 6. When the cover plate 7 is adhesively bonded subsequently, it can prevent glue from entering the backlight module 3 and protect the backlight film material. The sealant layer 5 is a double-sided adhesive, and a release film layer is provided on the double-sided adhesive.

[0036] The backlight module 3 includes a reflective film 31, a light guide plate 32, and a film material layer 33 arranged in sequence from bottom to top. A backlight source 8 is provided inside the backlight glue holder 2. The backlight source 8 is located on one side of the backlight module 3. The backlight source 8 is an LED lamp. The light of the LED lamp irradiates onto the light guide plate and the light guide plate guides the light direction, making the light go upward. After being processed by the film material layer 33, the light is displayed from the display module 4. The reflective film 31 can prevent light from irradiating downward, reduce light loss, and improve the light brightness intensity.

[0037] Two mounting parts 9 are provided on the outer side of the housing 1. Mounting holes 10 are provided on the mounting parts 9 for mounting and fixing the vehicle display module 4.

[0038] A protective film 11 is provided on the upper surface of the cover plate 7 to protect the surface of the cover plate 7 and prevent the surface of the cover plate 7 from being scratched.

[0039] The anti-injection vehicle display module provided in Embodiment 1 is further optimized. Specifically, as Figure 1 shown, the sealant layer 5 is a hot melt adhesive or an RTV adhesive. The double-sided adhesive is replaced with a hot melt adhesive or an RTV adhesive. Compared with the double-sided adhesive, using a hot melt adhesive or an RTV adhesive for dispensing can reduce labor and avoid the problem of misalignment of the double-sided adhesive attachment.

[0040] The anti-injection vehicle display module provided in Embodiment 2 is further optimized. Specifically, as Figure 3 , 4As shown in the figure, the display module 4 includes a lower polarizer 41, a lower layer glass 42, an upper layer glass 43, and an upper polarizer 44 stacked in sequence from bottom to top. One end of the lower layer glass 42 extends outward and is provided with a driving IC 45. An FPC 12 is bonded to the lower layer glass 42. A sealing tape 13 is pasted at the connection position between the display module 4 and the FPC 12, and the sealing tape 13 is adhesively fixed to the housing 1. The connection position between the FPC 12 and the display module 4 is sealed by the sealing tape 13. Of course, when it is possible to apply glue at the end of the FPC 12, a sealing glue 6 can be applied for sealing.

[0041] The working principle of the in-vehicle display module provided by the present utility model for preventing glue from entering: The display module 4 is adhesively fixed to the backlight glue holder 2 through the sealing glue layer 5, and the connection part between the display module 4 and the backlight glue holder 2 is sealed through the sealing glue 6, improving the sealing performance of the in-vehicle display module 4. When the cover plate 7 is connected to the display device through the AB glue, it can prevent the glue from entering the backlight module 3, protect the backlight film material, and also improve the waterproof performance of the in-vehicle display module 4, enhancing the product competitiveness.

[0042] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. shall 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, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0043] Obviously, the above-described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. The preferred embodiments of the present utility model are given in the drawings, but do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structure made by using the specification and drawings of the present utility model, directly or indirectly applied in other related technical fields, is equally within the scope of the patent protection of the present utility model.

Claims

1. An in-vehicle display module that prevents glue injection, comprising a housing, characterized in that, A backlight glue holder is installed inside the housing. A backlight module and a display module are stacked inside the backlight glue holder. A sealing glue layer is provided around the backlight module on the upper surface of the backlight glue holder. The display module is adhesively fixed to the backlight glue holder through the sealing glue layer. Sealing glue is provided around the sealing glue layer between the display module and the backlight glue holder. The upper surface of the housing is adhesively bonded to the cover plate through a glue layer.

2. The in-coming glue prevention vehicle-mounted display module according to claim 1, wherein The display module includes a visible area and a non-visible area, and the sealing glue layer is provided in the non-visible area of the display module.

3. The in-coming glue preventing vehicle-mounted display module according to claim 1, characterized in that, The sealing glue layer is a double-sided adhesive.

4. The in-mold flow prevention vehicle-mounted display module according to claim 1, wherein, The sealing glue layer is a hot melt adhesive or an RTV adhesive.

5. The in-mold flow prevention vehicle-mounted display module according to claim 1, wherein The backlight module includes a reflection film, a light guide plate, and a film material layer arranged in sequence from bottom to top.

6. The in-coming glue preventing vehicle-mounted display module according to claim 1, characterized in that, The display module includes a lower polarizer, a lower layer of glass, an upper layer of glass, and an upper polarizer stacked in sequence from bottom to top. One end of the lower layer of glass extends outward and is provided with a driving IC, and an FPC is bonded to the lower layer of glass.

7. An anti-gating vehicle display module according to claim 6, characterized in that, A sealing tape is attached to the connection position between the display module and the FPC, and the sealing tape is adhesively fixed to the housing.

8. The in-mold flow prevention vehicle-mounted display module according to claim 1, characterized in that, It further includes a backlight source, and the backlight source is arranged inside the backlight glue holder and on one side of the backlight module.

9. The in-mold flow prevention vehicle-mounted display module according to claim 1, characterized in that, Two mounting parts are provided on the outer side of the housing, and mounting holes are provided on the mounting parts.

10. A vehicle-mounted display module for preventing glue injection, characterized in that, A protective film is provided on the upper surface of the cover plate.

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