Fixing frame, backlight module and display device

Abstract

A fixing frame, a backlight module and a display device. The fixing frame comprises a frame, wherein the inner surface of the frame is provided with a recess; the frame comprises a first support portion and a second support portion; the first support portion and the second support portion enclose to form the recess; and the recess is configured to fix a film assembly.

Description

Mounting frame, backlight module and display device

[0001] This application claims priority to Chinese Patent Application No. 202520321772.9, filed on February 27, 2025, entitled "Fixed Frame, Backlight Module and Display Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of display technology, and in particular to a mounting bracket, a backlight module, and a display device. Background Technology

[0003] In display technology and related fields, the fixation of liquid crystal components and the stability of the films are key factors in ensuring display quality. Especially with the design trend of display devices pursuing higher screen-to-body ratios and narrower bezels, the fixation of liquid crystal components and the stability of the films face unprecedented challenges.

[0004] In conventional designs, the space required for the expansion / contraction of the film and the adhesive area required for fixing the liquid crystal module together occupy the BM (Black Matrix) area of ​​the display device. The BM area refers to the black light-shielding layer at the edge of the display screen used to block non-light-emitting areas, prevent light leakage, and improve contrast. As the bezel design of display devices becomes increasingly narrow, the size of the BM area, which is also located in the non-display area, has been significantly reduced accordingly. The BM area can prevent light leakage at the screen edge, effectively preventing halos or glare at the screen edge, ensuring the purity and clarity of the displayed image. When the size of the BM area is insufficient to simultaneously meet the space requirements for film expansion / contraction and the adhesive area requirements for fixing the liquid crystal module, the liquid crystal module may detach due to insufficient adhesion, leading to device malfunction or damage; or, if the space for film expansion / contraction is reduced to increase the adhesive area, the film may develop visual defects such as water ripples due to temperature changes, seriously affecting the user experience. Technical issues

[0005] In display devices with a narrow BM area design, balancing the space requirements for film expansion / contraction with the adhesive area requirements for fixing liquid crystal components has become a pressing technical challenge. Technical solutions

[0006] In a first aspect, embodiments of this application provide a fixing frame, which includes a frame, the inner surface of which is provided with a groove, the frame including a first support portion and a second support portion, the first support portion and the second support portion surrounding to form the groove, the groove being used to fix a diaphragm assembly.

[0007] Secondly, embodiments of this application also provide a backlight module, which includes:

[0008] A fixing frame includes a frame, the inner surface of which is provided with a groove. The frame includes a first support portion and a second support portion, which surround the groove to form the groove. The groove is used to fix the diaphragm assembly.

[0009] A diaphragm assembly disposed within the receiving space, the diaphragm assembly overlapping the groove.

[0010] Thirdly, embodiments of this application also provide a display device, which includes:

[0011] A backlight module includes a mounting frame and a diaphragm assembly. The mounting frame includes a frame with a groove on its inner surface. The frame includes a first support portion and a second support portion, which surround the groove to fix the diaphragm assembly. The diaphragm assembly is disposed inside the frame and overlaps the groove.

[0012] A liquid crystal module is disposed opposite to the backlight module and is connected to the frame. Beneficial effects

[0013] In the mounting bracket, backlight module, and display device provided in this application embodiment, the mounting bracket encloses a receiving space. The mounting bracket includes a frame, and a groove is provided on the inner surface of the frame. The frame includes a first support portion and a second support portion, which together form the groove for fixing the diaphragm assembly. In other words, the diaphragm assembly can be disposed in the groove, and the liquid crystal module can be disposed outside the receiving space and connected to the end face of the frame. In this embodiment, the liquid crystal module and the diaphragm assembly are arranged in a layered layout, and they are not fixed on the same plane. Through this ingenious layered design, sufficient fixing area is provided for the liquid crystal module while ensuring that the expansion / contraction space of the diaphragm is not affected, thereby significantly improving the display quality and stability of the overall display device. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the structure of a display device in the prior art.

[0015] Figure 2 is a schematic diagram of the first structure of the fixing frame provided in the embodiment of this application.

[0016] Figure 3 is a schematic diagram of the first structure of the framework provided in the embodiment of this application.

[0017] Figure 4 is a schematic diagram of the second structure of the framework provided in the embodiment of this application.

[0018] Figure 5 is a schematic diagram of the third structure of the framework provided in the embodiments of this application.

[0019] Figure 6 is a schematic diagram of the fourth structure of the framework provided in the embodiments of this application.

[0020] Figure 7 is a schematic diagram of the fifth structure of the framework provided in the embodiments of this application.

[0021] Figure 8 is a schematic diagram of the sixth structure of the framework provided in the embodiments of this application.

[0022] Figure 9 is a schematic diagram of the seventh structure of the framework provided in the embodiments of this application.

[0023] Figure 10 is a schematic diagram of the eighth structure of the framework provided in the embodiments of this application.

[0024] Figure 11 is a schematic diagram of the ninth structure of the framework provided in the embodiments of this application.

[0025] Figure 12 is a schematic diagram of the second structure of the fixing frame provided in the embodiment of this application.

[0026] Figure 13 is a schematic diagram of the third structure of the fixing frame provided in the embodiment of this application.

[0027] Figure 14 is a schematic diagram of the structure of the filler provided in the embodiment of this application.

[0028] Figure 15 is a schematic diagram of the fourth structure of the fixing frame provided in the embodiments of this application.

[0029] Figure 16 is a schematic diagram of the fifth structure of the fixing frame provided in the embodiment of this application.

[0030] Figure 17 is a schematic diagram of the tenth structure of the framework provided in the embodiments of this application.

[0031] Figure 18 is a schematic diagram of the backlight module provided in the embodiment of this application.

[0032] Figure 19 is a schematic diagram of the first structure of the display device provided in the embodiment of this application.

[0033] Figure 20 is a schematic diagram of a second structure of the display device provided in an embodiment of this application.

[0034] Implementation methods of this application

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0036] Please refer to Figure 1, which is a schematic diagram of the structure of a display device in the prior art.

[0037] In display technology and related fields, the fixation of the liquid crystal module 17 and the stability of the film 14 are key factors in ensuring the display quality of the display device 400. Especially with the design trend of display devices 400 pursuing higher screen-to-body ratios and narrower bezels (BM area), the fixation of the liquid crystal module 17 and the stability of the film 14 face unprecedented challenges.

[0038] To ensure that the film 14 does not develop visual defects such as water ripples due to stress concentration when the temperature changes, the frame 12 needs to be designed to allow sufficient space for the expansion and contraction of the film 14. This space requirement is usually met by adjusting the size of the BM area of ​​the liquid crystal module 17.

[0039] However, securing the liquid crystal component 17 requires sufficient adhesive area to ensure stability and reliability. The use of adhesives such as double-sided tape 19 relies on the adhesive area to provide sufficient adhesive force to prevent the liquid crystal component 17 from detaching during long-term use or under external force.

[0040] In conventional designs, the space required for the expansion / contraction of the film 14 and the adhesive area required for fixing the liquid crystal component 17 share the portion of the frame 12 corresponding to the BM area. As the design of display devices 400 evolves towards narrower bezels, the size of the portion of the frame 12 corresponding to the BM area is continuously decreasing, leading to a direct conflict between the two requirements. When the size of the portion of the frame 12 corresponding to the BM area is insufficient to simultaneously meet the space requirements for the expansion / contraction of the film 14 and the adhesive area requirements for fixing the liquid crystal component 17, the liquid crystal component 17 may detach due to insufficient adhesion, resulting in device malfunction or damage; or, if the space for the expansion / contraction of the film 14 is reduced to increase the adhesive area, the film 14 may develop visual defects such as water ripples due to temperature changes, severely affecting the user experience.

[0041] Therefore, in a display device 400 with a narrow BM area design, how to balance the space requirements for the expansion / contraction of the film 14 with the adhesive area requirements for fixing the liquid crystal module 17 has become a technical problem that urgently needs to be solved.

[0042] This application provides a mounting bracket, a backlight module, and a display device, which provide sufficient fixing area for the liquid crystal module while ensuring that the expansion / contraction space of the film is not affected. The following is a detailed description with reference to the accompanying drawings.

[0043] Please refer to Figure 2, which is a schematic diagram of the first structure of the fixing frame provided in the embodiment of this application.

[0044] This application provides a fixing bracket 1, which includes a frame 11. The frame 11 can be made of plastic, silicone, or metal.

[0045] The frame 11 encloses and forms a receiving space 111 for mounting and fixing internal components of the display device 100, such as fixing the diaphragm assembly 2.

[0046] The inner surface of the frame 11 is provided with a groove 113, which communicates with the receiving space 111 and is used to receive the diaphragm assembly 2. The diaphragm assembly 2 can be disposed inside the receiving space 111, i.e., the frame 11, and overlapped in the groove 113, which provides additional space for the expansion or contraction of the diaphragm assembly 2.

[0047] Please refer to Figure 3, which is a schematic diagram of the first structure of the frame provided in this application embodiment. The frame 11 includes a first support portion 115 and a second support portion 117. The first support portion 115 and the second support portion 117 surround and form a groove 113, which is used to accommodate the diaphragm assembly 2. The liquid crystal module 20 can be connected to the end face of the frame 11.

[0048] In other words, the liquid crystal module 20 and the film assembly 2 are arranged in a layered layout in this embodiment, and the two are not fixed on the same plane. Through the ingenious use of this layered design, sufficient fixing area is provided for the liquid crystal module 20 while ensuring that the expansion / contraction space of the film is not affected, thereby significantly improving the display quality and stability of the overall display device 100.

[0049] The first support portion 115 has a first support surface 1151. On the frame 11, the first support surface 1151 refers to a plane or surface used to support and fix the diaphragm assembly 2. The first support surface 1151 has a specific shape and size to ensure that the diaphragm assembly 2 can be correctly installed and positioned, that is, the first support surface 1151 can be used to support the diaphragm assembly 2.

[0050] The second support portion 117 is connected to the first support surface 1151 of the first support portion 115, and the second support surface 1171 is formed on the side of the second support portion 117 away from the first support portion 115. On the frame 11, the second support surface 1171 refers to a plane or surface used to support and fix the liquid crystal module 20. Similar to the first support surface 1151, the second support surface 1171 also has a specific shape and size to ensure that the liquid crystal module 20 can be correctly installed and positioned, that is, the second support surface 1171 can be used to support the liquid crystal module 20.

[0051] The frame 11 can effectively support and fix the diaphragm assembly 2 and the liquid crystal module 20, so that the diaphragm assembly 2 and the liquid crystal module 20 are arranged in layers. Without affecting the expansion / contraction space of the diaphragm assembly 2, it provides sufficient adhesive area for the liquid crystal module 20, thereby significantly improving the display quality and stability of the overall display device 100.

[0052] The area of ​​the connection region between the second support part 117 and the first support part 115 is the first area, and the area of ​​the second supporting surface 1171 is the second area. The first area is smaller than the second area.

[0053] Since the first support portion 115 mainly supports the film assembly 2, the connection area between it and the second support portion 117 does not need to be too large, only large enough to meet the requirement of a stable connection between the two. Therefore, the first area is set to be relatively small, which saves material costs and avoids unnecessary space occupation, making the structure of the entire frame 11 more compact and efficient. The area of ​​the second support surface 1171 is larger than the first area. This is because the second support surface 1171 needs to stably support the key component, the liquid crystal module 20, ensuring that it will not shift due to vibration or external forces. The stability and robustness of the liquid crystal module 20 are crucial to the overall performance of the display device 100; therefore, the design of the second support surface 1171 needs to focus more on stability and load-bearing capacity. By increasing the second area, the contact area between the first adhesive 30 and the liquid crystal module 20 can be increased, thereby improving adhesion and the stability of fixation.

[0054] In the direction from the first support portion 115 toward the second support portion 117, the cross-sectional area of ​​the second support portion 117 gradually increases. As a key component supporting the liquid crystal module 20, the second support portion 117 needs to possess good load-bearing capacity and stability. By gradually increasing the cross-sectional area, the strength and rigidity of the second support portion 117 can be effectively increased, enabling it to maintain a stable shape when facing external forces or vibrations, thereby ensuring the stability of the liquid crystal module 20. Simultaneously, this design strategy also helps optimize the utilization of the internal space of the display device 100.

[0055] In the context of a narrow BM region design, by gradually increasing the cross-sectional area of ​​the second support portion 117, a more stable support surface can be provided for the liquid crystal module 20 without sacrificing space for other components. This not only improves the overall performance of the display device 100 but also provides users with a clearer and more stable display effect. Furthermore, the gradual increase in cross-sectional area not only enhances the load-bearing capacity and stability of the second support portion 117 but also makes the frame 11 easier to demold during manufacturing. This reduces production costs and improves production efficiency.

[0056] Furthermore, the first support portion 115 and the second support portion 117 are integrally formed. Specifically, this design manufactures the first support portion 115 and the second support portion 117 as a single unit through injection molding, extrusion, or other suitable molding processes. This integrated design not only simplifies the manufacturing and assembly process and reduces production costs, but also improves the structural stability and precision of the frame 11, thereby further enhancing the overall performance and stability of the display device 100.

[0057] Please refer to Figures 4 and 5. Figure 4 is a schematic diagram of the second structure of the framework provided in the embodiment of this application, and Figure 5 is a schematic diagram of the third structure of the framework provided in the embodiment of this application.

[0058] When the diaphragm assembly 2 is installed on the frame 11, if the overlapping position of the diaphragm assembly 2 is located at the boundary area between the display area 200 and the non-display area 300 (i.e. the boundary between the BM area and the non-BM area), it may cause the visual effect at the boundary to be dim.

[0059] To address the aforementioned technical issues, the mounting bracket 1 in this embodiment further includes a rib 119, which is disposed on and protrudes from the first supporting surface 1151. The main function of the rib 119 is to moderately raise the diaphragm assembly 2, thereby forming a gap of a certain height between the diaphragm assembly 2 and the first supporting surface 1151. The introduction of this gap effectively promotes light penetration, significantly expands the illuminated area, and particularly increases the light-gathering space within a depth range of 0.5 mm or more outside the display area 200. This significantly improves the brightness performance of the non-display area 300 adjacent to the edge of the display area 200, effectively alleviating the visual dimness caused by obstructed light transmission and improving the overall display effect.

[0060] The number of ribs 119 is at least two, and the ribs 119 are distributed at intervals to ensure stable support for the diaphragm assembly 2.

[0061] In the direction from the first support 115 to the second support 117, the cross-sectional area of ​​the rib 119 gradually decreases. That is, the contact area between the rib 119 and the first support surface 1151 is greater than the contact area between the rib 119 and the liquid crystal module 20. This not only improves the reliability of fixing the rib 119 on the frame 11, but also helps to reduce the obstruction of the rib 119 to light transmission.

[0062] The ribs 119 include dot-shaped ribs 119 or elongated ribs 119. Dot-shaped ribs 119 have a smaller volume and flexible layout, minimizing interference with light transmission; while elongated ribs 119, with their continuous shape and larger contact area, provide more stable support for the diaphragm assembly 2.

[0063] When the rib 119 is a long strip rib 119, the extending direction of the rib 119 is perpendicular to the edge of the first supporting surface 1151 near the inner side of the receiving space 111, i.e., the frame 11. This not only allows the rib 119 to better resist the lateral pressure from the diaphragm assembly 2, but also ensures that the direction of light propagation is not obstructed, thereby further improving the display effect.

[0064] The extension length of the rib 119 is equal to the width of the first supporting surface 1151 along the direction perpendicular to the thickness of the frame 11. This not only significantly enhances the overall structural strength of the frame 11, providing a more stable support for the diaphragm assembly 2, but also effectively avoids the risk of the diaphragm assembly 2 falling off the rib 119 during thermal expansion and contraction. Specifically, regardless of whether the diaphragm assembly 2 is in a contracted or expanded state, it can be tightly and evenly supported by the rib 119, thereby ensuring the high stability of the diaphragm assembly 2 during installation and use. This design not only improves the visual quality of the display device 100, but also extends its service life, providing users with a superior display experience.

[0065] When the rib 119 is a point-like rib 119, the projection of the rib 119 on the first supporting surface 1151 is a circle, and / or an ellipse, and / or a polygon. This not only enriches the shape selection of the rib 119, but also allows for flexible adjustment according to the needs of actual application scenarios, thereby meeting different display effects and performance requirements.

[0066] The height of the rib 119 in this application is greater than or equal to 0.3 mm. Ribs 119 within this height range provide sufficient space for light to penetrate, facilitating an increase in light-gathering space at a depth of 0.5 mm or more outside the display area 200, starting from the boundary between the display area 200 and the non-display area 300. This allows light to penetrate more smoothly to the area below the diaphragm assembly 2, reducing light loss during transmission and thus improving the overall brightness of the display device 100.

[0067] Furthermore, the rib 119 is transparent. This not only retains the original supporting function of the rib 119, but also, by using a transparent material, reduces the obstruction of light by the rib 119 when light passes through the gap between the diaphragm assembly 2 and the first supporting surface 1151, thereby improving the overall brightness and clarity of the display area 200. The application of the transparent rib 119 provides the display device 100 with a more transparent visual effect, enhancing the user's visual experience.

[0068] The material of the rib 119 is an elastic material. The elastic material has excellent flexibility and resilience, which can well adapt to the deformation of the diaphragm assembly 2 during thermal expansion and contraction, thereby further reducing the friction and wear between the diaphragm assembly 2 and the rib 119. Moreover, the elastic rib 119 can also provide cushioning for the diaphragm assembly 2 and extend the service life of the display device 100.

[0069] Specifically, the rib 119 can be manufactured using plastic processing technologies such as injection molding and extrusion molding. When selecting specific materials, materials with excellent transparency and elasticity, such as transparent thermoplastic polyurethane (TPU), transparent silicone, and transparent elastic polyolefin, can be considered. These materials not only meet the functional requirements of the rib 119 but also have good processing performance and cost-effectiveness, making them suitable for large-scale production applications.

[0070] The first support portion 115 and the second support portion 117 in the above embodiments not only undertake the basic function of bearing and fixing, but also optimize the display effect of the display device 100.

[0071] Please refer to Figure 3. Specifically, the first support portion 115 also has a first inclined surface 1153, which faces the inner side of the receiving space 111, i.e., the frame 11, and is connected to the first supporting surface 1151. The first inclined surface 1153 gradually slopes from the first supporting surface 1151 toward the inner side of the receiving space 111, i.e., the frame 11. Its design is cleverly arranged around the upper part or around the light-emitting unit and / or the light guide plate, and extends outward. This design not only avoids the problem of light blocking, but also achieves the dual function of light guiding and light leakage prevention through its inclined structure, significantly increasing the effective area of ​​light, thereby improving the utilization rate of light and making the brightness distribution of the display device 100 more uniform, thus improving the user's visual experience. Please refer to Figure 6, which is a schematic diagram of the fourth structure of the frame provided in the embodiment of this application. The first inclined surface 1153 is at least partially corresponding to the non-display area 300 to optimize the light transmission path in the non-display area 300.

[0072] The diaphragm assembly 2 is located inside the receiving space 111, i.e., the frame 11, and overlaps the first supporting surface 1151. This design ensures the stability and positional accuracy of the diaphragm assembly 2, providing reliable support for the display device 100. Simultaneously, the diaphragm assembly 2 is spaced apart from the first inclined surface 1153, creating a gap that allows light to penetrate between the diaphragm assembly 2 and the first inclined surface 1153, thereby optimizing the light transmission path in the non-display area 300.

[0073] Furthermore, in this embodiment, a light-gathering space is increased within a depth range of 0.5 mm or more below the diaphragm assembly 2, corresponding to the outer side of the display area 200. This design allows light to penetrate more smoothly to the area below the diaphragm assembly 2 and illuminate it, effectively reducing light loss during transmission and thus improving the overall brightness of the display device 100. At the junction of the display area 200 and the non-display area 300, in this embodiment, the gap between the first inclined surface 1153 and the diaphragm assembly 2 is set to be greater than 0.3 mm. This gap setting also helps light to penetrate more smoothly to the area below the diaphragm assembly 2, further reducing light loss and improving display brightness.

[0074] Please refer to Figures 6 through 8. Figure 7 is a schematic diagram of the fifth structure of the frame provided in this application embodiment, and Figure 8 is a schematic diagram of the sixth structure of the frame provided in this application embodiment. Regarding the specific shape of the first inclined surface 1153, this application embodiment provides two optional solutions: a curved surface (as shown in Figures 6 and 7) or a folded surface (as shown in Figure 8). When the first inclined surface 1153 is a curved surface, a smooth arc surface is preferred, which helps to distribute light evenly, reduce glare and reflection, and thus further improve the display effect.

[0075] Referring to Figure 3, the second support 117 also has a second inclined surface 1172. The second inclined surface 1172 faces the inner side of the receiving space 111, i.e., the frame 11. The second inclined surface 1172 is connected to the second supporting surface 1171 and is inclined from the second supporting surface 1171 in a direction away from the inner side of the receiving space 111, i.e., the frame 11. The second inclined surface 1172 provides smoother and more convenient guidance during the installation of the diaphragm assembly 2. Specifically, when the diaphragm assembly 2 is placed on the frame 11, the second inclined surface 1172 can guide the diaphragm assembly 2 to move until it is fully placed on the first supporting surface 1151. This process not only reduces friction and resistance during installation but also improves the accuracy and efficiency of installation.

[0076] Further, please refer to Figure 9, which is a schematic diagram of the seventh structure of the frame provided in the embodiment of this application. The second support portion 117 includes a sub-connecting portion 1173 and a sub-support portion 1174. The sub-connecting portion 1173 is connected to the first support portion 115 and extends along the thickness direction of the frame 11. The sub-support portion 1174 is connected to the side of the sub-connecting portion 1173 away from the first support portion 115. The side of the sub-support portion 1174 away from the sub-connecting portion 1173 is the second supporting surface 1171, and the side of the sub-support portion 1174 near the receiving space 111, i.e., the inner side of the frame 11, is the second inclined surface 1172.

[0077] The sub-connector 1173 is tightly connected to the first supporting surface 1151 of the first support 115. This connection method ensures the stability between the two, thereby guaranteeing the stability of the frame 11 under various conditions. The area of ​​the connection region between the sub-connector 1173 and the first support 115 is a first area, which is relatively small to save materials and avoid unnecessary space occupation. At the same time, the sub-connector 1173 extends along the thickness direction of the frame 11. This design not only enhances the structural strength of the frame 11, but also effectively transmits and disperses forces from different directions, further improving the frame 11's durability, thereby enhancing the overall durability of the frame 11 and extending its service life.

[0078] The sub-support portion 1174 is connected to the sub-connecting portion 1173 on the side away from the first support portion 115, forming the main body of the second support portion 117. The sub-support portion 1174 has a flat and stable second supporting surface 1171 on the side away from the sub-connecting portion 1173, which can be used to support structures such as the liquid crystal module 20. The design of the supporting surface not only meets the high requirements of the liquid crystal module 20 for flatness and stability, but also ensures its stability and reliability during long-term use.

[0079] The connection area between the sub-connector 1173 and the first support 115 (i.e., the aforementioned first area) and the connection area between the sub-connector 1173 and the sub-support 1174 (the third area) are both designed to be much smaller than the second bearing area (the second area). This design saves material costs and avoids unnecessary space occupation, making the entire frame 11 structure more compact and efficient.

[0080] Furthermore, the thickness of the sub-connector 1173 along the thickness direction of the frame 11 is designed to correspond to the thickness of the diaphragm assembly 2, and is equal to or slightly greater than the thickness of the diaphragm assembly 2. This design provides sufficient space for the contraction or expansion of the diaphragm assembly 2 in the thickness direction, and also avoids assembly problems caused by changes in the size of the diaphragm assembly 2, thereby ensuring the stability and reliability of the diaphragm assembly 2 during long-term use.

[0081] In existing technologies, the frame 11 is often designed to extend partially or entirely into the effective display area 200 of the display panel (i.e., from the BM area to the non-BM area) to fix and support internal structures such as the diaphragm assembly 2. However, this design results in the frame 11 blocking backlight, easily creating shadows on the displayed image and affecting visual quality. The essence of the shadow problem lies in the blocking effect of the frame 11 on light. When light is emitted from the backlight module 10 and attempts to pass through the display panel to form an image, the presence of the frame 11 causes some light to be absorbed rather than penetrated, resulting in insufficient light at the edges or specific locations of the display area 200, i.e., shadows. Shadows not only reduce the overall brightness of the image but may also cause color distortion, seriously impairing the user's viewing experience.

[0082] To address the aforementioned issues, the mounting bracket 1 also includes a reflective layer. This reflective layer is cleverly positioned on the inner surface of the frame 11, adjacent to the edge of the display area 200. This allows for full utilization of the space within the frame 11, reflecting light that would otherwise be blocked back to the edge of the display area 200 or the film assembly 2. This design not only effectively reduces light absorption but also significantly improves light utilization, resulting in a more uniform light distribution and consistent screen brightness across the display area 200.

[0083] By introducing a reflective layer, this embodiment not only solves the shadow problem but also further improves the optical performance of the display device 100. The design of the reflective layer can be flexibly adjusted according to specific application scenarios, such as adjusting parameters like the material, thickness, and shape of the reflective layer to optimize light reflection and achieve the best optical performance.

[0084] In some cases, please refer to Figure 10, which is an eighth structural schematic diagram of the frame provided in the embodiments of this application. The fixing frame 1 also includes a first reflective layer 13, which is disposed on the first inclined surface 1153. The first inclined surface 1153 itself already helps to optimize the light transmission path, and the addition of the first reflective layer 13 further improves the light utilization efficiency, enabling the light to be reflected to the edge of the display area 200, thus avoiding the occurrence of shadow problems.

[0085] The first reflective layer 13 can be combined with the first inclined surface 1153 in various ways. It can be directly attached to the first inclined surface 1153, or the reflective function can be achieved through other technical means. In terms of material selection, the first reflective layer 13 can be a high-reflectivity film layer such as an ink layer, a plastic layer, or an aluminum layer, each of which has its unique advantages.

[0086] When the first reflective layer 13 is an ink layer, the ink layer has the advantages of low cost and simple processing, and by adjusting the ink formula, precise control of light reflectivity can be achieved. The ink layer material can be reactive ink, water-based ink, UV-curable ink, heat transfer ink, metallic ink, fluorescent ink, etc.

[0087] Specifically, using the high-precision printing capabilities of screen printing or pad printing, ink with high reflectivity is uniformly and firmly adhered to the first inclined surface 1153 of the frame 11. This step not only significantly improves the reflectivity of the first inclined surface 1153 but also ensures efficient utilization of light during transmission or reflection, thereby effectively reducing shadows caused by the frame 11. Compared to direct injection molding or aluminum drawing processes, the screen printing / pad printing solution of this application offers greater flexibility and precision. High-reflectivity ink is applied to the first inclined surface 1153 without requiring changes to the materials or processes of the entire fixture 1. This not only reduces production costs but also improves production efficiency, making the fabrication of the fixture 1 more economical and efficient.

[0088] Please refer to Figure 11, which is a ninth structural schematic diagram of the frame provided in the embodiments of this application. When the first reflective layer 13 is a plastic layer, the plastic layer has higher flexibility and plasticity, and the thickness, shape, and surface texture of the reflective layer can be adjusted according to specific needs to achieve the best optical effect. The material of the plastic layer can be a high-reflectivity plastic material such as polycarbonate (PC), polyethylene terephthalate (PET), polyvinyl chloride (PVC), or polyacrylate (PMMA), or a composite material such as reflective microsphere composite material.

[0089] This application provides two process methods for setting the first reflective layer 13 on the first inclined surface 1153 of the frame 11: a two-stage injection molding scheme and a two-material co-extrusion molding scheme.

[0090] The two-stage injection molding scheme involves dividing the frame 1 into two independent parts, each molded using a separate injection molding process. In the first injection molding, a common material is used as the raw material. Through standard injection molding, the basic structure of the frame 11 is formed, for example, the first support part 115 and the second support part 117, ensuring the product meets basic load-bearing requirements and provides stable support for subsequent assembly and use. In the second injection molding, a special material with high reflectivity is used. The key to this step is precisely injecting the high-reflectivity material into the parts of the frame 11 directly related to optical reflection, thereby significantly improving the reflectivity of that area to meet the product's high optical performance requirements. The two-material co-extrusion scheme uses an extrusion process to achieve composite molding of the frame 1 through two-material co-extrusion. The first material, with its excellent mechanical properties and cost-effectiveness, is used to form the basic load-bearing parts of the frame 11, such as the first support part 115 and the second support part 117. This material ensures the structural stability and durability of the frame 11, meeting the basic needs of the product in daily use. The second material, possessing unique optical properties and reflective characteristics, is specifically used to form the first reflective layer 13. By precisely controlling the extrusion process parameters, this high-reflectivity material is evenly distributed in a designated area of ​​the frame 11 (on the first inclined surface 1153), thereby significantly improving the light reflection effect in that area and meeting the product's high requirements for optical performance. Through the two-material co-extrusion scheme, not only is the structure and performance of the frame 11 optimized, but production efficiency and material utilization are also improved.

[0091] Furthermore, the first reflective layer 13 may also include a grating structure and / or a metasurface structure. The grating structure, as an optical element with a periodic structure, can achieve diffraction and interference of light, precisely controlling the propagation direction and intensity of light. The metasurface structure, composed of subwavelength structural units, possesses powerful light manipulation capabilities, enabling flexible adjustment of light phase, polarization, and amplitude. Integrating the grating structure and / or metasurface structure into the first reflective layer 13 not only significantly improves light reflectivity but also achieves precise control of the light propagation path, effectively reducing shadow phenomena. It can also adjust the light distribution according to specific application scenarios, improving the overall brightness and uniformity of the displayed image.

[0092] In other cases, please refer to Figure 12, which is a schematic diagram of a second structure of the mounting bracket provided in an embodiment of this application. The mounting bracket 1 also includes a second reflective layer 15, which is disposed on the second inclined surface 1172. This second reflective layer 15 can reflect light, effectively reflecting light that might otherwise be directly absorbed or blocked by the frame 11, guiding this light back to the diaphragm assembly 2. After being re-regulated by the diaphragm assembly 2, this reflected light can smoothly pass through the liquid crystal module 20 and participate in image construction. This innovative design not only significantly improves the efficiency of light utilization but also fundamentally reduces the shadow phenomenon caused by light being blocked by the frame 11, ensuring uniform light distribution in the edge area and overall of the display device 100, thereby achieving higher quality imaging effects, including higher brightness uniformity and more accurate color performance, bringing users a superior visual experience.

[0093] The material selection for the second reflective layer 15 is also flexible and diverse, including an ink layer, a plastic layer, or an aluminum layer, each with its unique advantages. Ink layers are known for their low cost and ease of processing, and through careful formulation, precise control of light reflectivity can be achieved. Ink layer materials can encompass various types, including reactive inks, water-based inks, UV-curable inks, heat transfer inks, metallic inks, and fluorescent inks. Plastic layers are characterized by their greater flexibility and plasticity, allowing for adjustments to the thickness, shape, and surface texture of the reflective layer to achieve optimal optical effects. Aluminum layers, with their excellent reflective properties and stability, are widely used in high-end display devices 100.

[0094] To address potential material irregularities or thermal expansion in the diaphragm assembly 2, the frame 11 in this embodiment cleverly incorporates clearance holes on the second support 117. The axial direction of these clearance holes is perpendicular to the thickness direction of the frame 11, providing ample tolerance space for the diaphragm assembly 2 to accommodate any outward extension or slight deformation that may occur under specific conditions. This design not only ensures that the diaphragm assembly 2 maintains structural stability and functional integrity even with minor expansion or shape irregularities, but also effectively avoids direct contact and potential friction between the diaphragm assembly 2 and the frame 11, thereby preventing potential optical performance degradation or structural damage.

[0095] Furthermore, clearance holes are provided on the sub-support portion 1174 to avoid interference with the diaphragm assembly 2 or other parts of the frame 11. The axial direction of the clearance holes is perpendicular to the thickness direction of the frame 11 to ensure that the filler 16 is not obstructed during installation. The design of the clearance holes can be adjusted according to the shape and size of the diaphragm assembly 2 to ensure that the gap between the clearance holes and the diaphragm assembly 2 is appropriate, neither causing interference nor affecting the support effect of the filler 16.

[0096] In some cases, during the manufacturing process of a liquid crystal display module, the diaphragm assembly 2 needs to be precisely installed on the frame 11 in a top-to-bottom order. However, since the optical diaphragm assembly 2 may have local irregularities, such as uneven thickness or shape deviations, direct installation may cause interference between the diaphragm assembly 2 and the frame 11, affecting the optical performance and structural stability of the display module.

[0097] Therefore, please refer to Figure 13, which is a schematic diagram of the third structure of the fixing frame provided in the embodiment of this application. In the fixing frame 1 provided in the embodiment of this application, a notch 1175 is provided on the second support part 117, and the fixing frame 1 also includes a filler 16, which is provided at the notch 1175. The filler 16 is provided with a clearance hole, and the axial direction of the clearance hole is perpendicular to the thickness direction of the frame 11.

[0098] A notch 1175 is pre-set on the frame 11. The shape and size of the notch 1175 are customized according to the irregular area of ​​the diaphragm assembly 2 to ensure that the diaphragm assembly 2 can be smoothly and accurately stacked into the frame 11 from top to bottom, while avoiding interference with the irregular area. After the diaphragm assembly 2 is successfully installed on the frame 11, in order to restore the integrity of the frame 11 and enhance its structural stability, this embodiment further introduces a filler 16. The shape and size of the filler 16 correspond to the notch 1175 of the frame 11. During the filling process, the filler 16 can be precisely placed in the notch 1175 and tightly connected to the frame 11 using appropriate fixing methods (such as adhesive, snap-fit, etc.). In addition, to further optimize the design of the filler 16, this embodiment also provides a clearance hole on the filler 16. The axial direction of the clearance hole is perpendicular to the thickness direction of the frame 11, which is intended to provide additional space to further avoid interference between the diaphragm assembly 2 and the filler 16, and improve the optical performance of the display module.

[0099] Please refer to Figure 14, which is a schematic diagram of the structure of the filler provided in the embodiment of this application. The filler 16 includes a first filler portion 161 and a second filler portion 162 connected to each other. The first filler portion 161 extends along the thickness direction of the frame 11, and the second filler portion 162 extends along the thickness direction perpendicular to the frame 11. The first filler portion 161 is connected to the first support portion 115, and the second filler portion 162 is disposed opposite to the first support surface 1151.

[0100] The first filling portion 161 extends along the thickness direction of the frame 11, and its main function is to serve as the main connection structure between the filling member 16 and the frame 11. In order to achieve a stable connection, the first filling portion 161 is designed to connect with the first support portion 115 on the frame 11. This connection can be achieved by fastening methods such as, but not limited to, adhesive, snap, and thread, to ensure that the filling member 16 can be firmly fixed to the frame 11.

[0101] The second filling portion 162 extends along a direction perpendicular to the thickness of the frame 11, and its design purpose is to provide additional support and positioning for the diaphragm assembly 2. Therefore, the second filling portion 162 is positioned opposite the first support surface 1151 below the diaphragm assembly 2, providing space for the diaphragm assembly 2 to contract or expand, avoiding interference between the diaphragm assembly 2 and the filling member 16, thereby ensuring the optical performance of the display module.

[0102] To further improve reflection efficiency, please refer to Figures 14 and 15. Figure 14 is a structural schematic diagram of the filler provided in an embodiment of this application, and Figure 15 is a structural schematic diagram of a fourth type of mounting bracket provided in an embodiment of this application. The mounting bracket 1 also includes a third reflective layer 18, which is disposed on the side of the second filler portion 162 near the first support surface 1151. The third reflective layer 18 can reflect light transmitted from the diaphragm assembly 2, thereby improving the optical performance of the display module. The filler portion 16 can be contoured to the second inclined surface 1172 of the frame 11 on the side with the third reflective layer 18. This contouring design can ensure the consistency of the reflection angle, thereby avoiding visual differences and improving the optical performance of the display module.

[0103] In some cases, the side of the second filler 162 closest to the first support surface 1151 is flush with the second inclined surface 1172 to ensure a smooth contact surface between the filler 16 and the diaphragm assembly 2 and to avoid optical interference.

[0104] The side of the second filling portion 162 away from the first supporting surface 1151 is flush with the second supporting surface 1171. Since the second supporting surface 1171 is configured to support the liquid crystal module 20, the fact that the second filling portion 162 is flush with the second supporting surface 1171 means that it can support the liquid crystal module 20 together with the second supporting surface 1171, which is beneficial to the connection reliability of the liquid crystal module 20.

[0105] This application provides two specific configurations for the filler 16. The filler 16 includes two types, with different structures and materials.

[0106] Please refer to Figure 13. The filler 16 can be made of plastic material. Furthermore, the material of the filler 16 can be the same as that of the frame 11, and the material of the third reflective layer 18 can also be the same as that of the second reflective layer 15. The filler 16 can be manufactured using various molding methods such as injection molding, extrusion, aluminum drawing, and die casting to meet different production needs and cost requirements. On the side of the filler 16 with the third reflective layer 18, that is, the side of the second filling part 162 opposite to the first supporting surface 1151, the filler 16 can be contoured according to the second inclined surface 1172 of the frame 11. This contouring design can ensure the consistency of the reflection angle, thereby avoiding visual differences and improving the optical performance of the display module.

[0107] Please refer to Figure 16, which is a schematic diagram of the fifth structure of the fixing frame provided in this application embodiment. The filler 16 can be a sheet metal part. Due to limitations in its material and molding process, it may not be possible to perform contouring processing, resulting in inconsistent reflection angles and visual differences. To solve the above problems, this application embodiment proposes to attach a reflective sheet to the inner surface of the second filling portion 162 of the filler 16. This reflective sheet can improve the reflectivity, making the reflection effect at the filler 16 consistent with other positions, thereby avoiding visual differences and improving the optical performance of the display module.

[0108] In summary, this application embodiment successfully solves the installation problem caused by local irregularities in the optical film assembly 2 during the manufacturing process of the liquid crystal display module by filling the gap 1175 in the frame 11. Both solutions in this application embodiment can ensure that the film assembly 2 is smoothly and accurately installed on the frame 11, while avoiding interference with the local irregularities of the film assembly 2 and restoring the integrity of the frame 11. In addition, through contour design and the bonding of the reflective sheet, this application embodiment can also ensure the optical performance and structural stability of the display module, improving the overall performance of the product.

[0109] Please refer to Figure 17, which is a schematic diagram of the tenth structure of the frame provided in this application embodiment. The fixing frame 1 also includes a transparent block 1176, which is connected to the side of the second support portion 117 near the receiving space 111, i.e., the inner side of the frame 11, and extends along the second support surface 1171. The transparent block 1176 can increase the area of ​​the second support surface 1171, aiming to increase the effective area of ​​the second support surface 1171, thereby increasing the support area provided for the liquid crystal module 20 and ensuring the stable fixation of the liquid crystal module 20 in the display device 100.

[0110] The transparent block 1176 can be composed of PET (Polyethylene terephthalate) or polymethyl methacrylate (PMMA, commonly known as plexiglass). PET plastic has good optical properties and weather resistance, and amorphous PET plastic has excellent optical transparency, ensuring smooth light transmission. PMMA, as the best high-molecular transparent material currently available, has a visible light transmittance of up to 92%, far exceeding that of ordinary glass, which can further enhance the optical performance of the display device 100.

[0111] In summary, the fixing frame 1 structure in this embodiment significantly increases the area of ​​the second supporting surface 1171 by adding a transparent block 1176, providing a more stable support for the liquid crystal module 20 and effectively solving the problem of insufficient area of ​​the second supporting surface 1171.

[0112] Please refer to Figure 18, which is a schematic diagram of the backlight module provided in this embodiment. This embodiment also provides a backlight module 10, which provides sufficient brightness and a uniformly distributed light source to enable the liquid crystal display to display images normally. The backlight module 10 has a display area 200 and a non-display area 300 surrounding the display area 200, also known as the BM (Black Matrix) area. The BM area is mainly formed in the edge area of ​​the liquid crystal panel through specific processes and technologies. In the LCD panel screen, the BM area is located at the outermost edge of the VA (Visual Area), and its main function is to prevent light from leaking out from the edge of the LCD. Because the backlight panel inside the LCD emits light, the user can see a clear picture. If the BM area is poorly designed or too narrow, light leakage may occur at the edge of the screen, or even form a noticeable halo on a pure black screen, affecting the display effect.

[0113] The backlight module 10 may include a direct-lit backlight module and an edge-lit backlight module. Direct-lit backlighting typically refers to using multiple LEDs as the light source, with these LEDs arranged directly on the back of the LCD panel. Direct-lit backlighting provides a uniform and high-brightness backlight effect, suitable for large-size display devices 100. This application embodiment uses a direct-lit backlight module for illustration.

[0114] The backlight module 10 includes the mounting frame 1 and the diaphragm assembly 2 as described in the above embodiments. The diaphragm assembly 2 is disposed in the receiving space 111 of the mounting frame 1, i.e., inside the frame 11. The diaphragm assembly 2 overlaps in the groove 113, which provides additional space for the expansion or contraction of the diaphragm assembly 2.

[0115] The diaphragm assembly 2 typically comprises one or more thin films, which may have different functions, such as polarization, filtering, and protection. The diaphragm assembly 2 includes a lower diffuser, a prism sheet, and an upper diffuser arranged sequentially, with each layer tightly bonded to ensure effective light transmission and control. Specifically, the lower diffuser is precisely positioned on the first frame portion (i.e., a specific part of frame 11), primarily used to collect and homogenize the light emitted from the light guide plate, ensuring that the light can be smoothly projected onto the subsequent prism sheet. The prism sheet, also known as a brightness enhancement film (BEF), is placed above the lower diffuser. When light from the backlight passes through the prism sheet, its unique prism structure guides the light, allowing it to effectively exit only when incident at a specific angle through refraction. Light that does not meet the refraction conditions is reflected back to the light source by the prism edge and reused through a reflector at the bottom of the light source. This process ensures efficient recycling of light within the backlight, effectively controlling light that would otherwise radiate in all directions within a narrower angular range (e.g., 70% of the light is controlled within a specific angle), thus significantly enhancing axial brightness. The upper diffuser is positioned above the prism sheet, not only further atomizing the light emitted from the prism sheet to ensure uniform light transmission, but also playing a crucial role in protecting the prism sheet from external damage. Through the treatment of the upper diffuser, the display device 100 can provide a more uniform and softer surface light source, improving the overall visual effect.

[0116] As in the above embodiment, the frame 11 includes a first support portion 115 and a second support portion 117. The first support portion 115 has a first supporting surface 1151; the second support portion 117 is connected to the first supporting surface 1151 of the first support portion 115.

[0117] The first support portion 115 also has a first inclined surface 1153, which faces the inner side of the receiving space 111, i.e., the frame 11. The first inclined surface 1153 is connected to the first supporting surface 1151 and is inclined from the first supporting surface 1151 toward the inner side of the receiving space 111, i.e., the frame 11. In some embodiments, the first inclined surface 1153 is at least partially disposed at the boundary between the display area 200 and the non-display area 300.

[0118] The diaphragm assembly 2 is located inside the receiving space 111, i.e., the frame 11. The diaphragm assembly 2 overlaps above the first supporting surface 1151, ensuring the stability and positional accuracy of the diaphragm assembly 2. A gap exists between the diaphragm assembly 2 and the first inclined surface 1153, allowing light to penetrate between the diaphragm assembly 2 and the first inclined surface. This optimizes the light transmission path, effectively illuminating the non-display area 300 below the diaphragm assembly 2, significantly reducing visual dimness caused by light obstruction, thereby greatly improving the overall brightness of the display device 100.

[0119] Furthermore, below the diaphragm assembly 2, the light-gathering space is increased by more than 0.5 mm to the outer side of the display area 200, so that light can penetrate more smoothly to the bottom of the diaphragm assembly 2 and illuminate the diaphragm assembly 2, reducing the loss of light during transmission and thus improving the overall brightness of the display device 100.

[0120] At the junction of the display area 200 and the non-display area 300, the gap between the first inclined surface 1153 and the diaphragm assembly 2 is set to be greater than 0.3mm, so that light can penetrate more smoothly to the bottom of the diaphragm assembly 2, reducing the loss of light during transmission, thereby improving the overall brightness of the display device 100.

[0121] The first inclined surface 1153 can be a curved surface or a folded surface. When the first inclined surface 1153 is a curved surface, it is an arc surface. When the first inclined surface 1153 is a curved surface, it can be a smooth arc surface, which helps to distribute light evenly, reduce glare and reflection, and further improve the display effect.

[0122] In some cases, the mounting bracket 1 also includes a rib 119, which is disposed on and protrudes from the first support surface 1151. When the diaphragm assembly 2 overlaps the first support surface 1151 of the frame 11, the rib 119 abuts against the diaphragm assembly 2 to separate the diaphragm assembly 2 from the first support surface 1151. The function of this rib is to lift the diaphragm assembly 2, thereby forming a gap of a certain height between the diaphragm assembly 2 and the first support surface. The existence of this gap promotes light penetration, effectively expanding the area that can be illuminated by light, thereby enhancing the brightness performance of the non-display area 300 adjacent to the edge of the display area 200. This design aims to alleviate the visual dimming phenomenon that may be caused by obstructed light transmission, thereby improving the overall display effect.

[0123] In this embodiment, the backlight module 10 may further include a backplate, a light source, a light guide plate, a diaphragm assembly 2, etc. The backplate provides basic support and structural stability. The light source can be an LED (light-emitting diode) or a Mini LED, etc., and the light source and FPC (flexible printed circuit board) form a light bar. LED light sources can emit stable and high-brightness light. The light guide plate converts the point or line light emitted by the light source into a surface light source, ensuring uniform light distribution. The light guide plate is generally made of a high-transmittance material. The light guide plate has a dotted pattern inside, which scatters light to form a uniform surface light source.

[0124] Furthermore, the backplate is connected to the mounting bracket 1. The backlight module 10 also includes a second adhesive component, which is disposed between the backplate and the mounting bracket 1 to fix the mounting bracket 1 to the backplate. The second adhesive component can be foam adhesive or AB adhesive.

[0125] Please refer to Figure 19, which is a schematic diagram of a first structure of the display device provided in an embodiment of this application. This application further provides a display device 100, which integrates the frame 11 design described in the above embodiments or the backlight module 10 described in the above embodiments, and performs functional and structural optimizations on this basis to improve the overall performance and user experience of the display device 100.

[0126] Display device 100 is an electronic device or component whose core function is to convert electronic signals, digital signals, or other forms of signals into visual information such as images, text, and numbers that can be recognized by the human eye. This display device 100 can be a television, computer monitor, mobile phone screen, vehicle display screen, etc.

[0127] The display device 100 includes the aforementioned backlight module 10 and liquid crystal module 20. The liquid crystal module 20 is mounted on the second support surface 1171 of the frame 11. The liquid crystal module 20 comprises a multi-layer structure including a liquid crystal layer, electrodes, and a circuit board. The liquid crystal module 20 displays images or information by controlling the arrangement of liquid crystal molecules. The layer of the liquid crystal module 20 closest to the backlight module 10 is a polarizing layer, which has a smaller area than other film layers, i.e., it is recessed relative to other film layers. This recessed polarizing layer effectively prevents light from leaking out from the edges of the liquid crystal module 20, avoiding unnecessary halos and glare outside the display area 200. This helps improve the display effect of the liquid crystal display and the user experience.

[0128] As shown in Figure 1, in the design of the existing display device 400, the liquid crystal component 17 is usually fixed to the frame 12. However, a significant problem in this process is that, due to the relatively small fixing area between the frame 12 and the liquid crystal component 17, the bonding area is often located on the outside of the polarizing layer 171. In other words, the adhesive such as double-sided tape 19 does not directly contact the polarizing layer 171. Although this approach can achieve the fixing of the liquid crystal component 17 to a certain extent, it may also bring some adverse effects, such as insufficient fixing stability, or unnecessary pressure or damage to the area around the polarizing layer 171 due to the choice of bonding position.

[0129] In this application, please continue to refer to Figures 3 and 19. By increasing the area of ​​the second supporting surface 1171, the contact area between the liquid crystal module 20 and the mounting bracket 1 can be increased, thereby improving the stability of the connection and reducing the potential impact on the polarizer 21. When the second supporting surface 1171 covers a portion of the polarizer 21, it can more effectively protect the polarizer 21 from damage. At the same time, since the pasting area is no longer completely located outside the polarizer 21, the risk of scratches or tears caused to the polarizer 21 by the pasting operation can also be reduced.

[0130] The mounting bracket 1 in the backlight module 10 is typically a frame-like structure used to support and fix other components, such as the diaphragm assembly 2 and the liquid crystal module 20. The mounting bracket 1 surrounds the inner side of the receiving space 111, i.e., the frame 11, and a groove 113 is provided on the inner surface of the frame 11 near the receiving space 111. The diaphragm assembly 2 can be disposed within the receiving space 111, i.e., the frame 11, and within the groove 113. The liquid crystal module 20 can be disposed outside the receiving space 111, i.e., the frame 11, and connected to the end face of the frame 11. In other words, the liquid crystal module 20 and the diaphragm assembly 2 are arranged in a layered layout in this embodiment, and are not fixed on the same plane. Through this ingenious layered design, sufficient fixing area is provided for the liquid crystal module 20 while ensuring that the expansion / contraction space of the diaphragm assembly 2 is not affected, thereby significantly improving the display quality and stability of the overall display device 100. To enhance the stability and reliability of the connection between the liquid crystal module 20 and the frame 11, the display device 100 further includes a first adhesive member 30. The first adhesive member 30 is disposed between the second supporting surface 1171 of the frame 11 of the backlight module 10 and the liquid crystal module 20, and is used to fix the liquid crystal module 20 to the frame 11 of the backlight module 10. The adhesive force of the first adhesive member 30 firmly fixes the liquid crystal module 20 to the frame 11. This fixing method is not only simple and easy to implement, but also effectively prevents the liquid crystal module 20 from loosening or falling off during long-term use.

[0131] The first adhesive component 30 can be either foam adhesive or AB glue. Both materials have good bonding properties and adaptability, meeting the needs of different applications and maintaining a stable connection between the LCD module 20 and the frame 11 over a long period. Foam adhesive has good adhesion and cushioning properties, effectively reducing loosening caused by vibration or impact; it also has a certain degree of elasticity, accommodating minor dimensional changes between the LCD module 20 and the frame 11. AB glue is a two-component epoxy resin adhesive that needs to be mixed before use. It has high strength, high hardness, and high temperature resistance, making it suitable for applications requiring high stress and high temperature resistance, and maintaining a stable connection between the LCD module 20 and the frame 11 over a long period.

[0132] Please refer to Figure 20, which is a schematic diagram of a second structure of the display device provided in this application embodiment. To further improve the stability and convenience of fixing the liquid crystal module 20, the display device 100 also includes an auxiliary positioning component 40. The auxiliary positioning component 40 is connected to the backlight module 10 and the liquid crystal module 20, and corresponds to the first adhesive component 30. The auxiliary positioning component 40 can be a magnet component or a snap-fit ​​component for guiding or temporarily fixing the backlight module 10 and the liquid crystal module 20. In this application embodiment, the auxiliary positioning component 40 is correspondingly provided to the first adhesive component 30 (such as an adhesive layer for fixing the liquid crystal module 20 or other components). This correspondence allows the auxiliary positioning component 40 to provide additional support and positioning for the backlight module 10 and the liquid crystal module 20 without interfering with the normal function of the first adhesive component 30.

[0133] When the auxiliary positioning component 40 includes a magnetic element, the magnetic materials of the backlight module 10 and the liquid crystal module 20 attract each other, thereby achieving guidance and temporary fixation. This design eliminates the need for additional mechanical connectors, enabling rapid and accurate positioning.

[0134] When the auxiliary positioning component 40 includes a snap-fit ​​assembly, the backlight module 10 and the LCD module 20 each have a first snap-fit ​​and a second snap-fit, which engage with each other to fix the LCD module 20 to the mounting bracket 1. At the same time, the snap-fit ​​assembly is designed for easy disassembly and reinstallation, providing convenience for maintenance and component replacement.

[0135] Specifically, the auxiliary positioning component 40 includes a first magnetic element 401 and a second magnetic element 402. The first magnetic element 401 is disposed on the second supporting surface 1171 of the backlight module 10, and the second magnetic element 402 is disposed on the liquid crystal module 20. The first magnetic element 401 and the second magnetic element 402 are correspondingly disposed, and the first adhesive element 30 is disposed between the first magnetic element 401 and the second magnetic element 402. When the liquid crystal module 20 is attached to the second supporting surface 1171, the first magnetic element 401 and the second magnetic element 402 attract each other, thereby providing additional fixing force and positioning guidance. In addition, the first adhesive element 30 is disposed between the first magnetic element 401 and the second magnetic element 402, which ensures the effect of adhesive fixation while avoiding interference of the magnetic elements with the performance of the adhesive element. The display device 100 also includes a middle frame, which includes a first frame portion, a second frame portion, and a third frame portion. The first frame portion is provided with a fixing bracket 1 and the periphery of the back plate. The second and third frame portions are connected to the first frame portion. The first frame portion extends along the thickness direction of the display device 100, and the second and third frame portions extend along a direction perpendicular to the thickness direction of the display device 100. The second frame portion is connected to the side of the liquid crystal module 20 away from the backlight module 10, and the third frame portion is connected to the side of the backlight module 10 away from the liquid crystal module 20. The first frame portion of the middle frame provides secondary fixation for the liquid crystal module 20. The third frame portion can be connected to the fixing bracket 1 by bolts.

[0136] Furthermore, the display device 100 also includes a third adhesive member disposed between the mid-frame and the liquid crystal module 20, for fixing the liquid crystal module 20 to the mid-frame. This third adhesive member is similar to the first adhesive member and will not be described in detail here. Furthermore, the third adhesive member may be disposed between the liquid crystal module 20 and the second frame portion to fix the second frame portion to the liquid crystal module 20.

[0137] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0138] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0139] The mounting bracket, backlight module, and display device provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only intended to help understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there may be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A fixing frame, comprising a frame, wherein a groove is provided on the inner surface of the frame, the frame comprising a first support portion and a second support portion, the first support portion and the second support portion surrounding the groove, the groove being used to fix a diaphragm assembly.

2. The fixing frame according to claim 1, wherein, The first support portion has a first supporting surface; the second support portion is connected to the first supporting surface of the first support portion, and the side of the second support portion away from the first support portion forms a second supporting surface.

3. The fixing frame according to claim 2, wherein, The area of ​​the connection region between the second support part and the first support part is the first area, and the area of ​​the second supporting surface is the second area. The first area is smaller than the second area.

4. The fixing frame according to claim 3, wherein, In the direction from the first support portion toward the second support portion, the cross-sectional area of ​​the second support portion gradually increases.

5. The fixing frame according to claim 2, wherein, The first support portion also has a first inclined surface facing the inside of the frame, the first inclined surface being connected to the first supporting surface, and the first inclined surface being inclined from the first supporting surface toward the inside of the frame.

6. The fixing frame according to claim 5, wherein, The first inclined plane is a curved surface or a folded surface.

7. The fixing frame according to claim 2, wherein, The second support also has a second inclined surface facing the inside of the frame, the second inclined surface being connected to the second supporting surface, and the second inclined surface being inclined from the second supporting surface toward the inside away from the frame.

8. The fixing frame according to claim 7, wherein, The second support portion includes a sub-connecting portion and a sub-support portion. The sub-connecting portion is connected to the first support portion and extends along the thickness direction of the frame. The sub-support portion is connected to the side of the sub-connecting portion away from the first support portion. The side of the sub-support portion away from the sub-connecting portion is the second supporting surface, and the side of the sub-support portion near the inner side of the frame is the second inclined surface.

9. The fixing frame according to claim 8, wherein, The connection area between the sub-connecting part and the first supporting part is the first area; the connection area between the sub-connecting part and the sub-supporting part is the third area, and the third area is smaller than the second area.

10. The fixing frame according to claim 2, wherein, It also includes a transparent block that is connected to the side of the second support near the inside of the frame and extends along the second support surface.

11. The fixing frame according to claim 1, wherein, It also includes a reflective layer disposed on the inner surface of the frame.

12. The fixing frame according to claim 1, wherein, The first support part and the second support part are integrally formed.

13. A backlight module, comprising: A fixing frame includes a frame, the inner surface of which is provided with a groove. The frame includes a first support portion and a second support portion, which surround the groove to form the groove. The groove is used to fix the diaphragm assembly. A diaphragm assembly is disposed inside the frame and overlaps the groove.

14. The backlight module according to claim 13, wherein, It also includes a back plate and a second adhesive component, the second adhesive component being disposed between the back plate and the mounting bracket for fixing the mounting bracket to the back plate.

15. A display device comprising: A backlight module includes a mounting frame and a diaphragm assembly. The mounting frame includes a frame with a groove on its inner surface. The frame includes a first support portion and a second support portion, which surround the groove to fix the diaphragm assembly. The diaphragm assembly is disposed inside the frame and overlaps the groove. A liquid crystal module is disposed opposite to the backlight module and is connected to the frame.

16. The display device according to claim 15, wherein, It also includes a first adhesive component disposed between the liquid crystal module and the backlight module, the first adhesive component being configured to fix the liquid crystal module to the backlight module.

17. The display device according to claim 16, wherein, It also includes an auxiliary positioning component, which is connected to the backlight module and the liquid crystal module, and the auxiliary positioning component corresponds to the first adhesive component.

18. The display device according to claim 17, wherein, The auxiliary positioning component includes a first magnetic component and a second magnetic component. The first magnetic component is disposed on the backlight module, the second magnetic component is disposed on the liquid crystal module, and the first adhesive component is disposed between the first magnetic component and the second magnetic component.

19. The display device according to claim 15, wherein, It also includes a middle frame, which includes a first frame portion, a second frame portion, and a third frame portion, wherein the second frame portion and the third frame portion are connected to the first frame portion; the first frame portion extends along the thickness direction of the display device, and the second frame portion and the third frame portion extend along a direction perpendicular to the thickness direction of the display device; the second frame portion is connected to the side of the liquid crystal module away from the backlight module, and the third frame portion is connected to the side of the backlight module away from the liquid crystal module.

20. The display device according to claim 19, wherein, It also includes a third adhesive component, which is disposed between the liquid crystal module and the second frame portion, and is configured to fix the second frame portion to the liquid crystal module.

Images