Mold, middle frame and display module

Abstract

The application relates to the technical field of display screens, and relates to a mold, which comprises a first mold core, a second mold core and at least one third mold core, a product space is formed between the first mold core, the second mold core and the third mold core, a glue inlet hole is arranged on the third mold core, the glue inlet hole is communicated with the product space, and the outer wall of the third mold core is used for forming the outer side surface of a middle frame, so that the glue inlet hole is located on one side of the outer side surface of the formed middle frame. The application also relates to a middle frame and a display module. The technical scheme provided by the application can make the glue inlet hole located on one side of the outer side surface of the middle frame. Even if a glue filament appears at a glue inlet point on the outer side surface of the middle frame corresponding to the glue inlet hole, since the middle frame is in contact with the inner side surface of the middle frame when the middle frame is connected with a back plate, and the inner side surface is smooth, the middle frame and the back plate are effectively prevented from being scraped and foreign matters generated due to the scraping, and the foreign matters are effectively prevented from falling into a display area, so that the application is beneficial to installation and improves the yield.

Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically, to a mold, a mid-frame, and a display module. Background Technology

[0002] The display screen includes an LCD panel, backlight module, mid-frame, metal backplate, etc. The mid-frame is mostly made of plastic. When the metal backplate is installed in the mid-frame, the metal backplate is easy to come into direct contact with the mid-frame and cause scratches. This scratching can easily cause small particles and other foreign objects to fall into the display area and affect the display effect.

[0003] Therefore, existing technology cannot meet the needs. Utility Model Content

[0004] The technical problem to be solved by the embodiments of this application is that when the metal back plate is installed into the middle frame in the prior art, the metal back plate is easy to directly contact the middle frame and cause scratches. Such scratches can easily cause small particles and other foreign objects to fall into the display area and affect the display effect.

[0005] To address the aforementioned technical problems, this application provides a mold that employs the following technical solution, including:

[0006] A mold for manufacturing a mid-frame of a display module, the mold comprising a first mold core, a second mold core, and at least one third mold core, wherein a product space is formed between the first mold core, the second mold core, and the third mold core, the third mold core having a glue inlet hole connected to the product space, and the outer wall of the third mold core forming the outer side surface of the mid-frame, such that the glue inlet hole is located on one side of the formed outer side surface of the mid-frame.

[0007] Furthermore, the third mold core is also provided with a gate, and a slider is provided inside the gate, through which the injection is made into the injection hole.

[0008] Furthermore, the mold also includes an outer frame, which is detachably connected to the slider.

[0009] To address the aforementioned technical problems, this application provides a mid-frame, employing the technical solution described below, including:

[0010] A mid-frame is manufactured using the aforementioned mold. The mid-frame is provided with a first connecting portion for connecting to a back panel. The glue inlet hole is located on one side of the outer surface of the first connecting portion.

[0011] To address the aforementioned technical problems, this application provides a display module that employs the following technical solution, including:

[0012] A display module includes a back panel, an optical module, and a mid-frame. The optical module is disposed within the back panel, and the mid-frame has a first connecting portion for connecting to the back panel, the inner side of the first connecting portion being abutted against the back panel.

[0013] Furthermore, the back plate is provided with a second connecting part that connects to the first connecting part. One of the first connecting part and the second connecting part is provided with a slot, and the other is provided with a buckle that matches the slot.

[0014] Furthermore, the middle frame is also provided with a main body, and a protruding strip is provided on the inner side of the main body. A slot is formed between the protruding strip and the first connecting part for the second connecting part to be inserted.

[0015] Furthermore, the back plate has a groove formed by recessing towards the direction away from the main body on the side near the second connecting part.

[0016] Furthermore, the display module also includes an OC module, which is connected to the mid-frame.

[0017] Furthermore, an adhesive strip is provided on the main body, and the OC module is connected to the main body through the adhesive strip.

[0018] Compared with the prior art, the embodiments of this application have the following advantages: The mold of this application is used to prepare the middle frame of the display module, so that the glue injection hole is located on one side of the outer side of the middle frame. Even if glue threads appear at the glue injection point on the outer side of the middle frame corresponding to the glue injection hole, since the middle frame does not contact the outer side of the middle frame when it is connected to the back plate, but contacts the inner side of the middle frame, and the inner side is smooth, it effectively avoids the middle frame from scratching the back plate and avoids foreign objects generated by scratching, and effectively prevents foreign objects from falling into the display area, which is beneficial to installation and improves the yield rate. Attached Figure Description

[0019] To more clearly illustrate the solution of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the mold structure according to an embodiment of this application;

[0021] Figure 2 This is a cross-sectional view of the mold according to an embodiment of this application;

[0022] Figure 3yes Figure 2 Enlarged diagram of A in the middle;

[0023] Figure 4 This is an exploded view of the mold according to an embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the structure of the middle frame in an embodiment of this application;

[0025] Figure 6 This is a schematic diagram of the structure of the display module according to an embodiment of this application;

[0026] Figure 7 This is a cross-sectional view of the display module according to an embodiment of this application.

[0027] Reference numerals: 100, mold; 200, display module; 1, first mold core; 2, second mold core; 3, third mold core; 31, sprue; 32, gate; 33, outer frame; 4, product space; 5, slider; 6, middle frame; 61, first connecting part; 611, inner side; 612, outer side; 62, slot; 63, main body; 64, protrusion; 65, slot; 7, back plate; 71, second connecting part; 72, buckle; 73, groove; 8, optical module; 9, OC module; 91, adhesive. Detailed Implementation

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0030] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0031] Please see the appendix Figure 1 To be continued Figure 4As shown, a mold is used to manufacture the middle frame of a display module. The mold 100 includes a first mold core 1, a second mold core 2, and at least one third mold core 3. A product space 4 is formed between the first mold core 1, the second mold core 2, and the third mold core 3. A glue inlet 31 is provided on the third mold core 3, and the glue inlet 31 is connected to the product space 4. The outer wall of the third mold core 3 is used to form the outer side surface of the middle frame, such that the glue inlet 31 is located on one side of the outer side surface of the formed middle frame. The mold of this application is used to prepare the middle frame of the display module, such that the glue inlet 31 is located on one side of the outer side of the middle frame 6. Even if glue threads appear at the glue inlet point on the outer side of the middle frame 6 corresponding to the glue inlet 31, the middle frame 6 will not contact the outer side of the middle frame 6 when it is connected to the back plate 7, but will contact the inner side 611 of the middle frame 6. The inner side 611 is smooth, thus effectively avoiding scratches between the middle frame 6 and the back plate 7 and avoiding foreign objects generated by scratches. It also effectively prevents foreign objects from falling into the display area, which is beneficial for installation and improves the yield rate.

[0032] Furthermore, the product space 4 is the injection molding space used to form the middle frame 6.

[0033] As attached Figure 2 To be continued Figure 4 As shown, in some embodiments, the third mold core 3 is further provided with a gate 32, and a slider 5 is provided inside the gate 32. The slider 5 is used to inject molding into the injection hole 31. The slider 5 can transfer the injection point located on the inner side 611 of the middle frame 6 to the outer side 612 of the middle frame 6, effectively avoiding the appearance of glue threads or protrusions on the inner side 611 of the middle frame 6. This prevents foreign objects from being generated by scratching the back plate 7 during installation, effectively preventing foreign objects from falling into the display area, which is beneficial for installation and improves the yield rate.

[0034] Furthermore, since the side of the middle frame 6 has many slots 62, i.e., undercuts, in order to form these undercuts and solve the problem of inconsistent mold opening directions, so that the product can be smoothly ejected from the mold, the slider 5 is set. The slider 5 is a movable part in the mold, and the slider 5 is set at an angle. During mold opening, the slider 5 first moves horizontally under the action of the slider 5 to actively "give way" to the position of the undercuts. Then the ejection system extends from the slider channel to eject the colloid in the gate 32, so that the colloid separates from the middle frame 6, thereby realizing the smooth separation of the product from the mold. At the same time, this application sets the injection channel on the slider channel and adopts the "submerged injection" method. That is to say, the molten plastic will "submerge" into the gate 32 through the slider channel, thereby realizing that the injection hole 31 is located on one side of the outer side of the formed middle frame and realizing rapid demolding.

[0035] As attached Figure 2 To be continued Figure 4 As shown, in some embodiments, the mold 100 further includes an outer frame 33, which is detachably connected to the slider 5. During mold 100 installation, the slider 5 can push the colloid in the gate 32 through the injection hole 31 into the product space 4, improving injection efficiency. Since the injection hole 31 is located on one side of the outer surface of the middle frame 6, the injection point of the middle frame 6 is located on its outer surface 612, effectively preventing the middle frame 6 from scratching the back plate 7 and generating foreign objects, and effectively preventing foreign objects from falling into the display area, which is beneficial for installation and improves the yield rate.

[0036] Based on the above-mentioned mold, this application embodiment provides a middle frame, which adopts the following technical solution, including:

[0037] As attached Figure 5 As shown, a mid-frame is manufactured using the mold described above. The mid-frame 6 is provided with a first connecting part 61 for connecting with a back panel. The inner side 611 of the first connecting part 61 is attached to the back panel, and the glue inlet 31 is located on one side of the outer side 612 of the first connecting part 61. This ensures that the glue inlet of the mid-frame 6 during injection molding is located on the outer side 612 of the mid-frame 6. Even if glue threads appear at the glue inlet on the outer side 612, the back panel 7 will not contact the outer side 612 of the mid-frame 6 when the mid-frame 6 is connected to the back panel 7. Instead, it will contact the inner side 611 of the mid-frame 6. The inner side 611 is smooth, thus effectively avoiding scratches between the mid-frame 6 and the back panel 7, preventing foreign objects generated by scratches, and effectively preventing foreign objects from falling into the display area. This facilitates installation and improves the yield rate.

[0038] Based on the aforementioned mold and mid-frame, this application embodiment provides a display module, which adopts the following technical solution, including:

[0039] As attached Figure 5 To be continued Figure 7As shown, a display module 200 includes a back plate 7, an optical module 8, and a middle frame 6. The optical module 8 is disposed within the back plate 7. The middle frame 6 has a first connecting portion 61 for connecting to the back plate 7, and the inner side 611 of the first connecting portion 61 is attached to the back plate 7. This ensures that the glue injection point of the middle frame 6 is located on the outer side of the middle frame 6. Even if glue threads appear at the glue injection point on the outer side of the middle frame 6, because the inner side 611 of the first connecting portion 61 is attached to the back plate 7, the middle frame 6 will not contact the outer side of the middle frame 6 when connecting to the back plate 7, but will contact the inner side 611 of the middle frame 6. Furthermore, the inner side 611 is smooth, thus effectively preventing the middle frame 6 from scratching the back plate 7 and preventing foreign objects generated by scratching. It also effectively prevents foreign objects from falling into the display area, facilitating installation and improving the yield rate of the display module 200.

[0040] As attached Figure 6 To be continued Figure 7 As shown, in some embodiments, the back plate 7 is provided with a second connecting portion 71 that connects to the first connecting portion 61. One of the first connecting portion 61 and the second connecting portion 71 is provided with a slot 62, and the other is provided with a buckle 72 that matches the slot 62. The back plate 7 and the middle frame 6 are connected by the engagement of the buckle 72 and the slot 62. The structure is simple, the connection is convenient, and disassembly and assembly can be completed without the need for other tools or parts, improving disassembly and assembly efficiency.

[0041] Furthermore, in this embodiment, the slot 62 is disposed on the first connecting portion 61, and the buckle 72 is disposed on the outer side of the second connecting portion 71 near the first connecting portion 61.

[0042] As attached Figure 6 To be continued Figure 7 As shown, in some embodiments, the middle frame 6 further includes a main body 63, with a protruding strip 64 on its inner side. A slot 65 is formed between the protruding strip 64 and the first connecting part 61 for the second connecting part 71 to partially engage. The slot 65 further secures the second connecting part 71, preventing it from bending and avoiding interference with the engagement of the buckle 72 and the slot 62, thus ensuring the stability of the connection between the back plate 7 and the middle frame 6.

[0043] Furthermore, the outer side of the protrusion 64 is chamfered, so when the second connecting part 71 is inserted into the slot 65, it avoids foreign objects from being generated due to scratching between the second connecting part 71 and the protrusion 64, effectively preventing foreign objects from falling into the display area, which is conducive to improving the yield rate.

[0044] As attached Figure 6 To be continued Figure 7 As shown, in some embodiments, the back plate 7 has a recessed groove 73 on the side near the second connecting portion 71, recessed in a direction away from the main body portion 63. The groove 73 can receive foreign objects that accidentally enter the display area, preventing foreign objects from contacting the optical module 8, preventing short circuits, and improving the service life of the display module 200.

[0045] As attached Figure 6 To be continued Figure 7 As shown, in some embodiments, the display module further includes an OC module 9, which is connected to the mid-frame 6. The OC module 9 can improve the refresh rate of the display module 200, resulting in clearer images and smoother operation. The OC module 9 works together with the optical module 8 to improve the performance of the display module 200 and enhance the user experience.

[0046] As attached Figure 6 To be continued Figure 7 As shown, in some embodiments, an adhesive strip 91 is provided on the main body 63, and the OC module 9 is connected to the main body 63 through the adhesive strip 91. Using the adhesive strip 91 enables uniform stress distribution during adhesion, better protecting the OC module 9. Simultaneously, the bonding process does not damage the surfaces of the main body 63 and the OC module 9, and the adhesive strip 91 provides good sealing, preventing foreign object intrusion and improving the service life of the display module 200.

[0047] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A mold for manufacturing a middle frame of a display module, characterized in that, The mold (100) includes a first mold core (1), a second mold core (2) and at least one third mold core (3). A product space (4) is formed between the first mold core (1), the second mold core (2) and the third mold core (3). A glue inlet hole (31) is provided on the third mold core (3). The glue inlet hole (31) is connected to the product space (4). The outer wall of the third mold core (3) is used to form the outer side surface of the middle frame, such that the glue inlet hole (31) is located on one side of the outer side surface of the formed middle frame.

2. The mold of claim 1, wherein, The third mold core (3) is also provided with a gate (32), and a slider (5) is provided inside the gate (32) to inject plastic into the injection hole (31) through the slider (5).

3. The mold of claim 2, wherein, The mold (100) also includes an outer frame (33), which is detachably connected to the slider (5).

4. A middle frame, characterized in that, The middle frame (6) is prepared using the mold described in any one of claims 1-3, and the middle frame (6) is provided with a first connecting part (61), and the glue inlet (31) is located on one side of the outer side (612) of the first connecting part (61).

5. A display module, characterized by The display module (200) includes a back plate (7), an optical module (8), and a middle frame (6) as described in claim 4. The optical module (8) is disposed inside the back plate (7), and the middle frame (6) is provided with a first connecting part (61) for connecting with the back plate (7). The inner side (611) of the first connecting part (61) is attached to the back plate (7).

6. The display module of claim 5, wherein, The back plate (7) is provided with a second connecting part (71) connected to the first connecting part (61). One of the first connecting part (61) and the second connecting part (71) is provided with a slot (62), and the other is provided with a buckle (72) adapted to the slot (62).

7. The display module of claim 6, wherein, The middle frame (6) is also provided with a main body (63), and a protrusion (64) is provided on the inner side of the main body (63). A slot (65) is formed between the protrusion (64) and the first connecting part (61) for the second connecting part (71) to be partially inserted.

8. The display module of claim 7, wherein, The back plate (7) has a groove (73) formed by recessing in a direction away from the main body (63) on the side near the second connecting part (71).

9. The display module of claim 7, wherein, The display module also includes an OC module (9), which is connected to the middle frame (6).

10. The display module of claim 9, wherein, An adhesive strip (91) is provided on the main body (63), and the OC module (9) is connected to the main body (63) through the adhesive strip (91).

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