Display screen module with PCB

Abstract

The utility model discloses a display screen module with a PCB. The display screen module comprises the PCB, and a groove body is formed in the PCB; the backlight module is embedded on the PCB through the groove body to be assembled; and the double-sided adhesive tape is laid in the groove body and is adhered to one side of the backlight module, and the backlight module can be mounted on the PCB to form a combination under the action of the double-sided adhesive tape. According to the display screen module with the PCB provided by the utility model, the groove of the groove body is formed on the PCB by referring to the backlight periphery of the backlight module, and is used for embedded alignment assembly of the backlight glue frame in the PCB, so that the assembly structure cancels a plurality of traditional backlight buckle positions and positioning columns, and also cancels a plurality of positioning holes and buckle positions on the PCB synchronously; compared with the prior art, the manufacturing method has the advantages that the manufacturing difficulty is lowered, the labor cost is reduced, better rapid assembly production is facilitated, meanwhile, the double-sided adhesive tape is designed, the original assembly strength between the PCB and the backlight module is guaranteed, and meanwhile in the subsequent repair and disassembly process, relative nondestructive disassembly between the PCB and the backlight module is also facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of display screen modules, in particular to a display screen module with a PCB. Background Art

[0002] A module refers to a specific functional component composed of several basic functional components, which can be used to form a system, device or program with complete functions. Modules usually have the same manufacturing process or logic, and adjusting their constituent components can adapt their functions or uses.

[0003] As shown in the accompanying drawings of the specification Figure 9 、 Figure 10 and Figure 11 For the existing display screen module with a PCB, when using the PCB1-1 as the periphery of the module, the backlight glue holder 1-2 needs to be provided with positioning posts 1-21 and buckle positions 1-22, and corresponding positioning holes 1-11 and buckle hole positions 1-12 are made on the PCB1-1 to realize the snap-fit assembly of the backlight glue holder 1-2 and the PCB1-1. This assembly method has the following defects in actual application;

[0004] 1. Since the above-mentioned backlight glue holder 1-2 has added a plurality of positioning posts 1-21 and buckle positions 1-22, the design and preparation difficulty of the backlight glue holder 1-2 is increased;

[0005] 2. At the same time, it is also necessary to punch holes at corresponding multiple places on the PCB1-1 and open holes corresponding to a plurality of positioning posts 1-21 and buckle positions 1-22. For high processing accuracy, it undoubtedly increases the labor cost;

[0006] 3. Since the PCB1-1 and the backlight glue holder 1-2 are snap-fitted and assembled, when they are returned to the factory for repair, it is inconvenient to remove the buckle. Moreover, if there is a collision at a certain place on the PCB1-1 and the backlight glue holder 1-2 during the removal, it is impossible to achieve a tight snap-fit assembly again, thereby increasing the repair difficulty and scrap rate;

[0007] For this reason, a display screen module with a PCB is proposed. Summary of the Utility Model

[0008] Based on this, in view of the above technical problems, it is necessary to provide a display screen module with a PCB, which has a semi-groove made on the PCB with reference to the periphery of the module backlight for the alignment and assembly of the backlight glue holder. This design structure is simple and easy to assemble.

[0009] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0010] A display screen module with a PCB, comprising:

[0011] A PCB board, with a groove formed on the PCB board;

[0012] A backlight module, which is assembled by being embedded in the PCB board through the groove;

[0013] Double-sided adhesive, which is laid in the groove and pasted to one side of the backlight module. Under the action of the double-sided adhesive, the backlight module can be installed on the PCB board to form a combination.

[0014] Further, the backlight module includes a backlight rubber holder and a liquid crystal display panel;

[0015] The liquid crystal display panel is installed on the front of the backlight rubber holder to jointly form the backlight module.

[0016] Further, the groove is formed along the periphery of the backlight module and is adapted to its size.

[0017] Further, the thickness of the groove is one-half of the PCB board;

[0018] The thickness of the double-sided adhesive is one-third of the groove.

[0019] Further, positioning elements are provided on the back of the backlight rubber holder.

[0020] Further, the positioning elements include positioning posts protruding from the backlight rubber holder;

[0021] Positioning grooves are formed at positions corresponding to the positioning posts on the groove;

[0022] Hole grooves are formed on the surface of the double-sided adhesive corresponding to the positioning posts.

[0023] Further, the end of the positioning post has a chamfered arc surface, and the cross-section of the end of the positioning post is trapezoidal.

[0024] Further, the length of the positioning post is greater than the thickness of the double-sided adhesive and less than the sum of the thicknesses of the groove and the double-sided adhesive.

[0025] Further, the length of the positioning post is the sum of the thicknesses of the groove and the double-sided adhesive;

[0026] And the positioning groove penetrates through the PCB board.

[0027] Further, the number of the positioning elements is multiple.

[0028] Compared with the prior art, the present utility model has the following beneficial effects:

[0029] The display screen module with a PCB provided by the present utility model has slots cut on the PCB board with reference to the periphery of the backlight module for the embedded alignment and assembly of the backlight glue holder inside. This assembly structure cancels the traditional multiple backlight snap positions and positioning posts, and also synchronously cancels the multiple positioning holes and snap positions on the PCB board, reducing the manufacturing difficulty, decreasing the labor cost, and facilitating better and faster assembly production;

[0030] At the same time, the double-sided adhesive is designed to ensure the original assembly strength between the PCB board and the backlight module. At the same time, during the subsequent repair and disassembly process, it also facilitates the lossless disassembly between the PCB board and the backlight module;

[0031] Through the setting of the positioning element, through the cooperation of a single positioning post and a single positioning slot, when the backlight module is placed and assembled in the slot body, it can play a guiding role, making the edge of the backlight module exactly correspond to the slot body to form a faster assembly. At the same time, since the positioning post penetrates the PCB board, during the subsequent repair process, the contact of the positioning post is formed on the back of the PCB board of the backlight module, which can promote the detachment of the backlight module from the slot body and facilitate the maintenance operation. Description of the Drawings

[0032] Figure 1 It is a schematic structural diagram of the display screen module with a PCB provided by the present utility model;

[0033] Figure 2 It is a schematic structural diagram of the PCB board of the display screen module with a PCB provided by the present utility model;

[0034] Figure 3 It is a schematic side view structural diagram of the display screen module with a PCB provided by the present utility model;

[0035] Figure 4 It is a schematic structural diagram of the backlight module of the display screen module with a PCB provided by the present utility model;

[0036] Figure 5 It is a schematic structural diagram of the slot body of the display screen module with a PCB provided by the present utility model;

[0037] Figure 6 It is a schematic structural diagram of the internal positioning element in Embodiment 2 of the display screen module with a PCB provided by the present utility model;

[0038] Figure 7 It is a schematic structural diagram of the internal positioning element in Embodiment 3 of the display screen module with a PCB provided by the present utility model;

[0039] Figure 8 It is a schematic structural diagram of the chamfered arc surface of the display screen module with a PCB provided by the present utility model;

[0040] Figure 9 This is one of the background art diagrams of the existing display module of the present utility model;

[0041] Figure 10 This is another background art diagram of the existing display module of the present utility model;

[0042] Figure 11 This is the third background art diagram of the existing display module of the present utility model.

[0043] The markings in the figure are explained as follows:

[0044] PCB board 1, slot 11;

[0045] Backlight module 2, backlight glue holder 21, liquid crystal display panel 22;

[0046] Double-sided adhesive 3;

[0047] Positioning element 4, positioning post 41, positioning slot 42, chamfered arc surface 43. Detailed implementation manners

[0048] In order 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 of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0049] As described in the background art, the existing display module has the following defects:

[0050] 1. Due to the addition of multiple positioning posts 1-21 and snap positions 1-22 on the above-mentioned backlight glue holder 1-2, the design and preparation difficulty of the backlight glue holder 1-2 is increased;

[0051] 2. At the same time, it is also necessary to drill corresponding holes at multiple locations on the PCB 1-1 and open corresponding holes for multiple positioning posts 1-21 and snap positions 1-22. For high processing accuracy, it undoubtedly increases the labor cost;

[0052] 3. Since the PCB 1-1 and the backlight glue holder 1-2 are snap-fitted and assembled, when it is returned to the factory for repair, it is inconvenient to remove the snap. And if there is a collision at a certain place on the PCB 1-1 and the backlight glue holder 1-2 during the removal, it is impossible to achieve a tight snap-fitting and assembly again, thus increasing the repair difficulty and scrap rate.

[0053] To solve this technical problem, the present utility model provides a display module with a PCB, which is applied to a display module.

[0054] Specifically, please refer to Figures 1 - 8 , the display module with a PCB specifically includes:

[0055] A PCB board 1, on which a groove 11 is provided;

[0056] A backlight module 2, which is assembled by being embedded in the PCB board 1 through the groove 11;

[0057] A double-sided adhesive 3, which is laid in the groove 11 and pasted to one side of the backlight module 2. Under the action of the double-sided adhesive 3, the backlight module 2 can be installed on the PCB board 1 to form a combination.

[0058] For the display module with a PCB provided by the present utility model, a groove 11 is opened on the PCB board 1 with reference to the periphery of the backlight of the backlight module 2 for the embedded alignment and assembly of the backlight rubber bracket 21 inside. This assembly structure cancels the traditional multiple backlight buckle positions and positioning posts, and also synchronously cancels the multiple positioning holes and buckle positions on the PCB board, reducing the preparation difficulty, reducing the labor cost, and facilitating better and faster assembly production;

[0059] At the same time, the double-sided adhesive 3 is designed to ensure the original assembly strength between the PCB board and the backlight module. At the same time, during the subsequent repair and disassembly process, it is also convenient for the non-destructive disassembly between the PCB board 1 and the backlight module 2.

[0060] In order 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 with reference to the accompanying drawings.

[0061] 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.

[0062] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0063] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in, a display module with a PCB, a PCB board 1, on which a groove 11 is provided; a backlight module 2, which is assembled by being embedded in the PCB board 1 through the groove 11;

[0064] The double-sided adhesive 3 is laid in the groove 11 and adhered to one side of the backlight module 2. Under the action of the double-sided adhesive 3, the backlight module 2 can be installed on the PCB board 1 to form a combination;

[0065] As Figure 3 shown, it is a side view of the backlight module 2, where Figure 4 is a front view of the backlight module 2. It can be seen from Figure 3 and Figure 4 that the liquid crystal display panel 22 is embedded and installed on the backlight rubber holder 21 to jointly form the backlight module 2. Therefore, in the actual process of opening the groove 11, only the peripheral shape and size of the backlight rubber holder 21 need to be considered. At the same time, during assembly, there is no need to consider whether the liquid crystal display panel 22 on the backlight rubber holder 21 will come into contact with the PCB board 1 and cause scratches. The backlight module 2 includes a backlight rubber holder 21 and a liquid crystal display panel 22. The liquid crystal display panel 22 is installed on the front of the backlight rubber holder 21 to jointly form the backlight module 2;

[0066] The groove 11 is opened along the periphery of the backlight module 2 and is adapted to its size;

[0067] In the actual design process, first, the groove 11 is opened on the PCB board 1 along the periphery of the backlight module 2. Then, during the specific assembly process, after cutting the double-sided adhesive 3 to a size adapted to the groove 11, the protective film on one side of the double-sided adhesive 3 is torn off, and it is adhered to the groove 11 through this side. Then, the protective film on the other side of the double-sided adhesive 3 is torn off. Finally, the backlight module 2 is aligned with the groove 11 for embedding and assembly, and then the PCB board 1 and the backlight module 2 are pressed to fully activate the adhesiveness of the double-sided adhesive 3 to achieve a stable and firm adhesion strength;

[0068] Through the above structural design, compared with the traditional display module assembly, the actual design and preparation difficulty of the backlight rubber holder 21 is greatly reduced. At the same time, for the PCB board 1, there is no need to accurately position and open holes for the buckle positions and positioning posts on the backlight rubber holder 21, which also synchronously reduces the preparation difficulty of the PCB board 1. While reducing the preparation difficulty, the overall structure of the display module is also simplified.

[0069] As a further optimization of this embodiment: the thickness of the groove 11 is one-half of the PCB board 1;

[0070] The thickness of the double-sided adhesive 3 is one-third of the groove 11;

[0071] Through the above design of the specific thickness of the groove 11 and the double-sided adhesive 3, it not only ensures that the backlight module 2 is embedded and installed in place in the groove 11, but also meets the firmness of the double-sided adhesive 3 in pasting the backlight module 2 and the PCB board 1.

[0072] The display module with a PCB provided in Embodiment 1 is further optimized. Specifically, as Figure 5 and Figure 6 shown, in order to accurately embed the backlight module 2 into the slot 11 for rapid assembly, the positioning element 4 is set as follows:

[0073] A positioning element 4 is provided on the back surface of the backlight glue holder 21;

[0074] The positioning element 4 includes a positioning post 41 protruding from the backlight glue holder 21;

[0075] A positioning groove 42 is opened at the position of the slot 11 corresponding to the positioning post 41;

[0076] A hole groove is formed on the surface of the double-sided adhesive 3 corresponding to the positioning post 41;

[0077] During the process of the backlight module 2 being embedded into the slot 11, the positioning post 41 on the backlight module 2 will align with the positioning groove 42 and then the backlight module 2 can be pushed. When the positioning post 41 extends into the positioning groove 42, the central positioning of the backlight module 2 is completed. Thus, by rotating the backlight module 2 at an appropriate angle during the pushing process, its embedded installation can be achieved;

[0078] As a further optimization of this embodiment: The end of the positioning post 41 has a chamfered arc surface 43, and the cross-section of the end of the positioning post 41 is trapezoidal;

[0079] Through the setting of the above arc chamfer 43, when the positioning post 41 contacts the inside of the positioning groove 42, it can be guided to achieve rapid placement, so as to promote better positioning and assembly;

[0080] As a further optimization of this embodiment: The length of the positioning post 41 is greater than the thickness of the double-sided adhesive 3 and less than the sum of the thicknesses of the slot 11 and the double-sided adhesive 3;

[0081] Through the above length design of the positioning post 41, the end of the positioning post 41 can be retained in the PCB board 1 for positioning;

[0082] The positioning post 41 in this embodiment is designed to be cylindrical. Therefore, when it is inserted and assembled with the positioning groove 42, the backlight module 2 can be rotated to adjust its position corresponding to the slot 11. In actual application, the positioning post 41 can also be designed as a polygon, such as a hexagonal positioning post or a triangular positioning post. Similarly, the positioning groove 42 also needs to be set as a corresponding multi-sided groove;

[0083] By changing the design of the positioning post 41, after the backlight module 2 is positioned in the positioning groove 42 through the positioning post 41, it is not necessary to rotate and adjust the position of the backlight module 2, and it can be directly pushed toward the groove body 11 to accurately achieve embedded assembly with the PCB board 1;

[0084] The positioning element 4 added in this embodiment only realizes the problem of convenient assembly through a single positioning post 41 and positioning groove 42. Therefore, compared with the traditional structural design of snap positions, snap grooves and positioning posts on multiple display modules, the overall structure is greatly optimized and has good practicability.

[0085] Further optimize the display module with a PCB provided in Embodiment 1 or 2, such as Figure 7 and Figure 8 As shown, further optimize the positioning element 4 on the basis of Embodiment 2, specifically as follows:

[0086] The length of the positioning post 41 is the sum of the thicknesses of the groove body 11 and the double-sided adhesive 3, and the positioning groove 42 penetrates through the PCB board 1;

[0087] By designing the length of the positioning post 41 to penetrate through the thickness of the PCB board 1 after assembly, during the subsequent factory repair process, when the display module needs to be disassembled, the end of the positioning post 41 can be abutted on the back of the PCB board 1 to better promote its separation from the PCB board 1, so as to achieve better disassembly and repair or component replacement;

[0088] Compared with the traditional display module that requires sequential buckling and disassembly operations such as multiple snap positions and positioning posts, the disassembly process is simplified, and at the same time, better protection of the PCB board 1 and the backlight module 2 is achieved during the disassembly process;

[0089] As a further optimization of this embodiment: the number of the positioning elements 4 is multiple.

[0090] The use process of the display module with a PCB provided by the present invention is as follows: In the actual design process, first open the groove body 11 along the periphery of the backlight module 2 on the PCB board 1, and then during the specific assembly process, first cut the double-sided adhesive 3 into a size adapted to the groove body 11, then tear off the protective film on one side of the double-sided adhesive 3, and paste it on the groove body 11 through this side, and then tear off the protective film on the other side of the double-sided adhesive 3. Finally, align the backlight module 2 with the groove body 11 for embedded assembly, and then press the PCB board 1 and the backlight module 2 to fully activate the viscosity of the double-sided adhesive 3 to achieve a stable and firm adhesion strength, that is, the assembly operation of the simplified display module is completed.

[0091] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installation", "connection", "linkage", "fixation" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral one; it may be a mechanical connection, an electrical connection or communication with each other; it may be directly connected or indirectly connected through an intermediate medium, and it may 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 may be understood according to specific circumstances.

[0092] Obviously, the embodiments described above are only part of the embodiments of the present utility model, rather than all of them. The preferred embodiments of the present utility model are shown 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 on some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present utility model in other related technical fields shall be within the scope of the patent protection of the present utility model by the same token.

Claims

1. A display module with a PCB, characterized in that, It includes: A PCB board (1), on which a groove (11) is formed; A backlight module (2), which is assembled by being embedded in the PCB board (1) through the groove (11); A double-sided adhesive (3), which is laid in the groove (11) and pasted to one side of the backlight module (2). Under the action of the double-sided adhesive (3), the backlight module (2) can be installed on the PCB board (1) to form a combination.

2. The display module with a PCB according to claim 1, wherein, The backlight module (2) includes a backlight rubber frame (21) and a liquid crystal display panel (22); The liquid crystal display panel (22) is installed on the front surface of the backlight rubber frame (21) to jointly form the backlight module (2).

3. The display module with a PCB according to claim 2, characterized in that, The groove (11) is formed along the periphery of the backlight module (2) and is adapted to its size.

4. The display module with a PCB according to claim 3, wherein The thickness of the groove (11) is one-half of the PCB board (1); The thickness of the double-sided adhesive (3) is one-third of the groove (11).

5. The display module with a PCB according to claim 2, wherein, A positioning element (4) is provided on the back surface of the backlight rubber frame (21).

6. The display module with a PCB according to claim 5, characterized in that, The positioning element (4) includes a positioning post (41) protruding from the backlight rubber frame (21); A positioning groove (42) is formed at the position of the groove (11) corresponding to the positioning post (41); A hole groove is formed on the surface of the double-sided adhesive (3) corresponding to the positioning post (41).

7. The display module with a PCB according to claim 6, wherein, The end of the positioning post (41) has a chamfered arc surface (43), and the cross-section of the end of the positioning post (41) is trapezoidal.

8. The display module with a PCB according to claim 6, characterized in that, The length of the positioning post (41) is greater than the thickness of the double-sided adhesive (3) and less than the sum of the thicknesses of the groove (11) and the double-sided adhesive (3).

9. The display module with a PCB according to claim 6, characterized in that, The length of the positioning post (41) is the sum of the thicknesses of the groove (11) and the double-sided adhesive (3); And the positioning groove (42) penetrates through the PCB board (1).

10. The display module with a PCB according to claim 6, characterized in that, The number of the positioning elements (4) is multiple.

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