Sheet metal backlight display module structure with middle frame

Abstract

The utility model discloses a sheet metal backlight display module structure with a middle frame, which comprises a plastic middle frame, a riveting hole, a sheet metal backlight and a riveting column fixedly connected on the sheet metal backlight, the riveting hole is arranged at the bottom of the plastic middle frame, the plastic middle frame is provided with a mounting surface and a mounting groove, the sheet metal backlight is mounted in the mounting groove, and the riveting column is fixedly connected on the sheet metal backlight. The riveting column is located in the riveting hole, a supporting gasket is arranged between the metal plate backlight and the inner bottom wall of the mounting groove, and the supporting gasket is used for guaranteeing that the bottom face of the metal plate backlight is flat after mounting. According to the metal plate backlight display module structure with the middle frame, the supporting gaskets are additionally attached to the leftmost edge and the rightmost edge between the bottom face of the metal plate backlight and the plastic middle frame respectively, the planeness of the plastic middle frame at the positions is good, and therefore the planeness of riveting columns of the metal plate backlight is guaranteed; the situation that the flatness of the dispensing face of the plastic middle frame is poor can be ignored, and it is guaranteed that no mura defect exists after a client side is installed.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight display, and in particular to a sheet metal backlight display module structure with a middle frame. Background Art

[0002] The current structure of the vehicle-mounted display module consists of a cover, optical glue, FOG, sheet metal backlight, and a plastic middle frame. The front cover serves as the appearance surface, and the periphery and back structure of the plastic middle frame serve as the mechanical installation surface. In consideration of better installation strength, the back of the sheet metal backlight is also extended with rivets and fixed to the vehicle structure with screws. In order to prevent the appearance of Mura on the display after installation, the flatness of the rivet surface of the sheet metal backlight must be ensured to meet the standard. However, since the cover is bonded once through OCA and FOG, and then the sheet metal backlight connection surface is glued, the primary bonded part and the sheet metal backlight are bonded twice. Since the flatness of the cover and the sheet metal glued surface are both good, and the sheet metal glued surface will be affixed with PET support blocks of equal thickness to ensure glue thickness consistency, the flatness of the cover surface relative to the sheet metal rivet can be guaranteed at this time. During the third lamination process, the plastic middle frame is glued first, and then the cover of the second component is aligned with the glued surface of the middle frame to complete the assembly. If the glue thickness of the middle frame or the flatness of the plastic middle frame's glued surface is poor, the flatness of the rivet studs on the sheet metal backlight will also deteriorate, ultimately causing mura defects after the customer's screw tightening process. Therefore, it is urgent to find a solution to the poor flatness of the rivet studs after the third lamination of the sheet metal backlight. Utility Model Content

[0003] Based on this, it is necessary to provide a sheet metal backlight display module structure with a middle frame to address the above technical problems. By adding a support gasket to the left and right edges between the bottom surface of the sheet metal backlight and the plastic middle frame, the thickness of the support gasket can support and ensure the flatness of the bottom surface of the sheet metal backlight, thereby ensuring the flatness of the rivet column of the sheet metal backlight. The use of this connection structure design can ignore the poor flatness of the gluing surface of the plastic middle frame, and the VHB double-sided adhesive or single-sided adhesive sponge is set at the left and right edges of the bottom surface of the installation slot. The plastic middle frame at this position has good flatness, which can ensure the stable flatness of the rivet column after gluing, thereby ensuring that there is no mura after the client is installed.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A sheet metal backlight display module structure with a middle frame, comprising:

[0006] A plastic middle frame, a rivet hole, a sheet metal backlight, and a rivet post fixedly connected to the sheet metal backlight, wherein the rivet hole is provided at the bottom of the plastic middle frame, the plastic middle frame has a mounting surface and a mounting slot, the sheet metal backlight is mounted inside the mounting slot, the rivet post is located inside the rivet hole, and a support gasket is provided between the sheet metal backlight and the inner bottom wall of the mounting slot, the support gasket is used to ensure that the bottom surface of the sheet metal backlight is flat after installation;

[0007] The shape and size of the cover plate match those of the plastic middle frame, and the mounting surface and the sheet metal backlight of the plastic middle frame are both bonded to the cover plate by gluing.

[0008] Furthermore, a middle frame glue dispensing groove is opened on the installation surface, and a first PTV glue is provided in the middle frame glue dispensing groove, and the installation surface is glued and fixed to the cover plate by the first PTV glue.

[0009] Furthermore, the sheet metal backlight includes a sheet metal component and a backlight display component installed inside the sheet metal component, and the sheet metal backlight is bonded to the cover plate through OCA and FOG.

[0010] Furthermore, the sheet metal component has a sheet metal glue spot surface, and the sheet metal glue spot surface is glued and fixed to the cover plate by a second PTV glue, and optical glue is provided between the backlight display assembly and the cover plate.

[0011] Furthermore, the supporting gasket is an elastic gasket, and the elastic gasket is fixedly connected to the inner bottom wall of the mounting groove.

[0012] Furthermore, the elastic gasket is a single-sided sticky sponge, and the single-sided sticky sponge is adhered to the inner bottom wall of the installation groove.

[0013] Furthermore, the elastic gasket is a VHB double-sided tape, and the VHB double-sided tape is bonded and fixed to the inner bottom wall of the installation groove and the lower surface of the sheet metal component.

[0014] Furthermore, the number of the supporting gaskets is two, and the two supporting gaskets are symmetrically installed on the left and right sides of the bottom wall of the installation groove.

[0015] Furthermore, the number of the support gaskets is four, and the four support gaskets are symmetrically installed on the left and right sides and the front and back sides of the bottom wall of the installation groove.

[0016] Furthermore, there are multiple supporting gaskets, the inner bottom wall of the mounting groove is a planar structure, and the multiple supporting gaskets are evenly distributed along the inner bottom wall of the mounting groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The utility model provides a sheet metal backlight display module structure with a middle frame, in which the installation surface of the plastic middle frame is glued and fixed to the cover plate by a first PTV glue, and the sheet metal dotted surface of the sheet metal is glued and fixed to the cover plate by a second PTV glue, so that the plastic middle frame and the sheet metal backlight are firmly sealed to the cover plate, avoiding light leakage and ensuring the stability of the basic structure of the display device. In addition, the support gasket adopts VHB double-sided adhesive or single-sided adhesive sponge, which is elastic and can be compressed to a certain extent. The flatness of the plastic middle frame at the left and right edges of the bottom surface of the installation groove is good, and after the support gasket is installed, the flatness of the rivet column after gluing can be guaranteed to be more stable.

[0019] The sheet metal backlight display module structure with a middle frame provided by the utility model is achieved by affixing a supporting gasket to the left and right edges between the bottom surface of the sheet metal backlight and the plastic middle frame. The thickness of the supporting gasket supports and ensures the flatness of the bottom surface of the sheet metal backlight, thereby ensuring the flatness of the rivet posts of the sheet metal backlight. The use of this connection structure design can ignore the poor flatness of the glue point surface of the plastic middle frame, and the VHB double-sided adhesive or single-sided adhesive sponge is set at the left and right edges of the bottom surface of the installation groove. The flatness of the plastic middle frame at this position is good, which can ensure the stable flatness of the rivet posts after gluing, thereby ensuring that there is no mura after the client is installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic cross-sectional view of a sheet metal backlight display module structure with a middle frame provided by the present invention;

[0021] Figure 2 The sheet metal backlight display module structure with a middle frame provided by the utility model Figure 1 Schematic diagram of the local enlarged structure in;

[0022] Figure 3 A schematic diagram of the installation structure of the support gasket of the sheet metal backlight display module structure with a middle frame provided by the present invention;

[0023] Figure 4 This is a schematic diagram of the installation structure of multiple supporting gaskets of the sheet metal backlight display module structure with a middle frame provided by the present invention.

[0024] The markings in the figure are as follows:

[0025] 1. Plastic middle frame; 2. Rivet holes; 3. Mounting surface; 4. Mounting slot; 5. Sheet metal backlight; 6. Rivet studs; 7. Support gaskets; 8. Cover plate; 9. Middle frame glue slot; 10. First PTV glue; 501. Sheet metal; 502. Backlight display assembly; 503. Sheet metal glue surface; 504. Second PTV glue; 505. Optical glue. DETAILED DESCRIPTION

[0026] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0027] As described in the background technology, when the cover surface and the glue surface of the middle frame of the existing vehicle display module are assembled together, if the glue thickness of the middle frame or the flatness of the glue surface of the plastic middle frame is poor, the flatness of the rivet column surface of the sheet metal backlight will also deteriorate, resulting in mura problems after the client's screw locking process.

[0028] In order to solve this technical problem, the present invention provides a sheet metal backlight display module structure with a middle frame. During installation, the cover plate 8 is bonded to the backlight display component 502 once through OCA and FOG, and then the sheet metal glue spot surface 503 of the sheet metal part 501 is glued with the second PTV glue 504. Then the once bonded part is bonded to the sheet metal backlight 5 for a second time. Since the flatness of the cover plate 8 and the sheet metal glue spot surface 503 are both good, and the sheet metal glue spot surface 503 will be affixed with a PET support block of equal thickness to ensure the consistency of the glue thickness, the flatness of the cover plate 8 relative to the sheet metal rivet column 6 can be guaranteed at this time. Then, a support gasket 7 is added to the left and right edges between the bottom surface of the sheet metal backlight 5 and the plastic middle frame 1. The support gasket 7 can be a VHB double-sided adhesive or single-sided adhesive sponge. The thickness of the VHB double-sided adhesive or single-sided adhesive sponge is used to support and ensure the flatness of the bottom surface of the sheet metal backlight 5, thereby ensuring the flatness of the rivet column 6 of the sheet metal backlight 5.

[0029] Specifically, please refer to Figure 1-4 The sheet metal backlight display module structure with a middle frame specifically includes:

[0030] A plastic middle frame 1 and a rivet hole 2, wherein the rivet hole 2 is provided at the bottom of the plastic middle frame 1, and the plastic middle frame 1 has a mounting surface 3 and a mounting groove 4;

[0031] The sheet metal backlight 5 and the rivet stud 6 fixedly connected to the sheet metal backlight 5 are installed inside the mounting groove 4. The rivet stud 6 is located inside the rivet hole 2. A support gasket 7 is provided between the sheet metal backlight 5 and the inner bottom wall of the mounting groove 4. The support gasket 7 is used to ensure that the bottom surface of the sheet metal backlight 5 is flat after installation.

[0032] The shape and size of the cover plate 8 match those of the plastic middle frame 1 , and the mounting surface 3 of the plastic middle frame 1 and the sheet metal backlight 5 are both bonded to the cover plate 8 by gluing.

[0033] The sheet metal backlight display module structure with a middle frame provided by the present invention has a support gasket 7 attached to the left and right edges of the bottom surface of the sheet metal backlight 5 and the plastic middle frame 1. The thickness of the support gasket 7 supports and ensures the flatness of the bottom surface of the sheet metal backlight 5, thereby ensuring the flatness of the rivet column 6 of the sheet metal backlight 5. The use of this connection structure design can ignore the poor flatness of the glue point surface of the plastic middle frame 1, and the VHB double-sided adhesive or single-sided adhesive sponge is set at the left and right edges of the bottom surface of the installation slot 4. The flatness of the plastic middle frame 1 at this position is good, which can ensure the stable flatness of the rivet column 6 after gluing, thereby ensuring that there is no mura defect after the client is installed.

[0034] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0037] Please refer to Figure 1-4 A sheet metal backlight display module structure with a middle frame includes a plastic middle frame 1 and a rivet hole 2, the rivet hole 2 is set at the bottom of the plastic middle frame 1, and the plastic middle frame 1 has a mounting surface 3 and a mounting groove 4;

[0038] The sheet metal backlight 5 and the rivet stud 6 fixedly connected to the sheet metal backlight 5 are installed inside the mounting groove 4. The rivet stud 6 is located inside the rivet hole 2. A support gasket 7 is provided between the sheet metal backlight 5 and the inner bottom wall of the mounting groove 4. The support gasket 7 is used to ensure that the bottom surface of the sheet metal backlight 5 is flat after installation.

[0039] The shape and size of the cover plate 8 match those of the plastic middle frame 1 , and the mounting surface 3 of the plastic middle frame 1 and the sheet metal backlight 5 are both bonded to the cover plate 8 by gluing.

[0040] Please refer to Figure 1-4By adding a support gasket 7 to the left and right edges between the bottom surface of the sheet metal backlight 5 and the plastic middle frame 1, the thickness of the support gasket 7 supports and ensures the flatness of the bottom surface of the sheet metal backlight 5, thereby ensuring the flatness of the rivet 6 of the sheet metal backlight 5. This connection structure design can ignore the poor flatness of the glue point surface of the plastic middle frame 1, and the VHB double-sided adhesive or single-sided adhesive sponge is set at the left and right edges of the bottom surface of the installation slot 4. The flatness of the plastic middle frame 1 at this position is good, which can ensure the stable flatness of the rivet 6 after gluing, thereby ensuring that there is no mura after the client is installed.

[0041] The sheet metal backlight display module structure with a middle frame provided in Example 1 is further optimized. Specifically, Figure 1 and Figure 2 As shown, a middle frame glue dispensing groove 9 is opened on the mounting surface 3, and a first PTV glue 10 is set in the middle frame glue dispensing groove 9. The mounting surface 3 is glued and fixed to the cover plate 8 by the first PTV glue 10. The sheet metal backlight 5 includes a sheet metal part 501 and a backlight display component 502 installed inside the sheet metal part 501. The sheet metal backlight 5 is bonded to the cover plate 8 through OCA and FOG. The sheet metal part 501 has a sheet metal glue dispensing surface 503, and the sheet metal glue dispensing surface 503 is glued and fixed to the cover plate 8 by the second PTV glue 504. Optical glue 505 is set between the backlight display component 502 and the cover plate 8. Through the above structural design, the mounting surface 3 of the plastic middle frame 1 and the sheet metal backlight 5 can be firmly sealed with the cover plate 8 to avoid light leakage and ensure the stability of the basic structure of the display device.

[0042] The sheet metal backlight display module structure with a middle frame provided in Example 1 or 2 is further optimized, such as Figure 1-3 As shown, the support gasket 7 is an elastic gasket, which is fixedly connected to the inner bottom wall of the mounting groove 4. When the elastic gasket is a single-sided sticky sponge, the single-sided sticky sponge is bonded to the inner bottom wall of the mounting groove 4. When the elastic gasket is a VHB double-sided tape, the VHB double-sided tape is bonded and fixed to the inner bottom wall of the mounting groove 4 and the lower surface of the sheet metal 501. There are two support gaskets 7, and the two support gaskets 7 are symmetrically installed on the left and right sides of the inner bottom wall of the mounting groove 4. Since the support gasket 7 is elastic, it can be compressed to a certain extent, and the plastic middle frame 1 at the left and right edges of the bottom surface of the mounting groove 4 has good flatness. After the support gasket 7 is installed, the flatness of the rivet column 6 after gluing can be guaranteed to be stable, thereby ignoring the poor flatness of the gluing surface of the plastic middle frame 1.

[0043] The structure of the sheet metal backlight display module with a middle frame provided in the above embodiments is further optimized, such as Figure 1 and Figure 3As shown, there are four support pads 7, which are symmetrically mounted on the left and right sides and the front and back sides of the inner bottom wall of the mounting groove 4. This structural design can ensure that the left and right sides and the front and back sides of the plastic middle frame 1 are relatively flat.

[0044] like Figure 4 As shown, when there are multiple support gaskets 7, the inner bottom wall of the mounting groove 4 is a planar structure, and multiple support gaskets 7 are evenly distributed along the inner bottom wall of the mounting groove 4. In this way, when the area of ​​the sheet metal backlight 5 is large, it can provide good support and better ensure the flatness stability of the rivet column 6 after gluing.

[0045] The use process of the sheet metal backlight display module structure with a middle frame provided by the utility model is as follows:

[0046] During installation, the cover plate 8 is bonded to the backlight display component 502 through OCA and FOG once, and then the second PTV glue 504 is applied to the sheet metal glue point surface 503 of the sheet metal part 501. Then, the first bonded part is bonded to the sheet metal backlight 5 for a second time. Since the flatness of the cover plate 8 and the sheet metal glue point surface 503 are both good, and the sheet metal glue point surface 503 will be affixed with a PET support block of equal thickness to ensure the consistency of glue thickness, the flatness of the cover plate 8 relative to the sheet metal rivet column 6 can be guaranteed at this time. Then, a support piece is affixed to the left and right edges between the bottom surface of the sheet metal backlight 5 and the plastic middle frame 1. Gasket 7, the supporting gasket 7 can be a VHB double-sided adhesive or single-sided adhesive sponge. The thickness of the VHB double-sided adhesive or single-sided adhesive sponge is used to support and ensure the flatness of the bottom surface of the sheet metal backlight 5, thereby ensuring the flatness of the rivet column 6 of the sheet metal backlight 5. The use of this connection structure design can ignore the poor flatness of the glue point surface of the plastic middle frame 1, and the VHB double-sided adhesive or single-sided adhesive sponge is set at the left and right edges of the bottom surface of the installation slot 4. The flatness of the plastic middle frame 1 at this position is good, which can ensure the stable flatness of the rivet column 6 after gluing, thereby ensuring that there is no mura after the client is installed.

[0047] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0048] Obviously, the embodiments described above are only some of the embodiments of the present invention, rather than all of the embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present invention specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of protection of the present invention patent.

Claims

1. A sheet metal backlight display module structure with a middle frame, characterized in that: It includes: A plastic middle frame (1) and a rivet hole (2), wherein the rivet hole (2) is provided at the bottom of the plastic middle frame (1), and the plastic middle frame (1) has a mounting surface (3) and a mounting groove (4); A sheet metal backlight (5) and a rivet post (6) fixedly connected to the sheet metal backlight (5), wherein the sheet metal backlight (5) is installed inside the installation groove (4), the rivet post (6) is located inside the rivet hole (2), and a support gasket (7) is provided between the sheet metal backlight (5) and the inner bottom wall of the installation groove (4), and the support gasket (7) is used to ensure that the bottom surface of the sheet metal backlight (5) is flat after installation; A cover plate (8), wherein the shape and size of the cover plate (8) match the shape and size of the plastic middle frame (1), and the mounting surface (3) and the sheet metal backlight (5) of the plastic middle frame (1) are both bonded to the cover plate (8) by gluing.

2. The sheet metal backlight display module structure with a middle frame according to claim 1, characterized in that: A middle frame glue dispensing groove (9) is provided on the mounting surface (3), a first PTV glue (10) is provided in the middle frame glue dispensing groove (9), and the mounting surface (3) is glued and fixed to the cover plate (8) by the first PTV glue (10).

3. The sheet metal backlight display module structure with a middle frame according to claim 2, characterized in that: The sheet metal backlight (5) comprises a sheet metal part (501) and a backlight display component (502) installed inside the sheet metal part (501); the sheet metal backlight (5) is bonded to the cover plate (8) via OCA and FOG.

4. The sheet metal backlight display module structure with a middle frame according to claim 3, characterized in that: The sheet metal component (501) has a sheet metal glue-dotting surface (503), the sheet metal glue-dotting surface (503) is glued and fixed to the cover plate (8) by a second PTV glue (504), and optical glue (505) is provided between the backlight display component (502) and the cover plate (8).

5. The sheet metal backlight display module structure with a middle frame according to claim 4, characterized in that: The supporting gasket (7) is an elastic gasket, and the elastic gasket is fixedly connected to the inner bottom wall of the mounting groove (4).

6. The sheet metal backlight display module structure with a middle frame according to claim 5, characterized in that: The elastic gasket is a single-sided sticky sponge, and the single-sided sticky sponge is adhered to the inner bottom wall of the installation groove (4).

7. The sheet metal backlight display module structure with a middle frame according to claim 5, characterized in that: The elastic gasket is a VHB double-sided tape, and the VHB double-sided tape is bonded and fixed to the inner bottom wall of the installation groove (4) and the lower surface of the sheet metal part (501).

8. The sheet metal backlight display module structure with a middle frame according to claim 5, characterized in that: The number of the supporting gaskets (7) is two, and the two supporting gaskets (7) are symmetrically mounted on the left and right sides of the inner bottom wall of the mounting groove (4).

9. The sheet metal backlight display module structure with a middle frame according to claim 5, characterized in that: The number of the supporting pads (7) is four, and the four supporting pads (7) are symmetrically mounted on the left and right sides and the front and back sides of the inner bottom wall of the mounting groove (4).

10. The sheet metal backlight display module structure with a middle frame according to claim 5, characterized in that: The number of the supporting gaskets (7) is multiple, the inner bottom wall of the mounting groove (4) is a planar structure, and the multiple supporting gaskets (7) are evenly distributed along the inner bottom wall of the mounting groove (4).

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