Fixing frame, backlight module and display device

Abstract

The utility model provides a fixing frame, a backlight module and a display device, the fixing frame comprises a frame, the inner surface of the frame is provided with a groove, the frame comprises a first supporting part and a second supporting part, the first supporting part and the second supporting part define the groove, and the groove is used for fixing a diaphragm assembly. The fixing frame can improve the display quality and stability of the display device.

Description

Technical Field

[0001] The utility model relates to the technical field of display, and in particular to a fixing frame, a backlight module and a display device. Background Art

[0002] In display technology and related fields, the fixation of liquid crystal components and the stability of the membrane are key factors in ensuring display quality. Especially under the design trend of display devices pursuing higher screen-to-body ratio and narrower frame, the fixation of liquid crystal components and the stability of the membrane face unprecedented challenges.

[0003] In conventional designs, the space required for the expansion / contraction of the diaphragm and the adhesive area required for the fixation of the liquid crystal component occupy the BM area of ​​the display device. As the border design of display devices becomes increasingly narrow, the size of the BM (Black Matrix) area, which is also located in the non-display area, has been greatly reduced accordingly. The BM area can prevent light leakage from the edge of the screen, effectively prevent halo or glare from occurring at the edge of the screen, and ensure the purity and clarity of the displayed image. When the size of the BM area is not sufficient to simultaneously meet the space requirements for the expansion / contraction of the diaphragm and the adhesive area requirements for the fixation of the liquid crystal component, the liquid crystal component may fall off due to insufficient adhesion, causing equipment failure or damage; or, if the space for the expansion / contraction of the diaphragm is reduced in order to increase the adhesive area, the diaphragm may produce visual defects such as water ripples due to temperature changes, seriously affecting the user experience.

[0004] Therefore, in a display device with a narrow BM area design, how to balance the space requirements for membrane expansion / contraction and the adhesive area requirements for fixing the liquid crystal component has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] The embodiments of the present application provide a fixing frame, a backlight module and a display device, which can improve the display quality and stability of the display device.

[0006] An embodiment of the present application provides a fixing frame, including a frame, wherein the inner surface of the frame is provided with a groove, the frame includes a first supporting portion and a second supporting portion, the first supporting portion and the second supporting portion are arranged to form the groove, and the groove is used to fix the diaphragm assembly.

[0007] In some embodiments, 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 a side of the second support portion away from the first support portion forms a second supporting surface.

[0008] In some embodiments, an area of ​​a connection region between the second support portion and the first support portion is a first area, an area of ​​the second supporting surface is a second area, and the first area is smaller than the second area.

[0009] In some embodiments, in a direction from the first supporting portion to the second supporting portion, a cross-sectional area of ​​the second supporting portion gradually increases.

[0010] In some embodiments, the first supporting portion further has a first inclined surface, the first inclined surface faces the inner side of the frame, the first inclined surface is connected to the first supporting surface, and the first inclined surface is inclined from the first supporting surface toward the inner side of the frame.

[0011] In some embodiments, the second supporting portion further has a second inclined surface, the second inclined surface faces the inner side of the frame, the second inclined surface is connected to the second supporting surface, and the second inclined surface is inclined from the second supporting surface toward the inner side away from the frame.

[0012] In some embodiments, the second supporting portion includes a sub-connecting portion and a sub-supporting portion, the sub-connecting portion is connected to the first supporting portion, the sub-connecting portion extends along the thickness direction of the frame, and the sub-supporting portion is connected to a side of the sub-connecting portion away from the first supporting portion; the side of the sub-supporting portion away from the sub-connecting portion is the second supporting surface, and the side of the sub-supporting portion close to the inner side of the frame is the second inclined surface.

[0013] In some embodiments, the fixing frame further includes a transparent block, which is connected to a side of the second supporting portion close to the inner side of the frame and extends along the second supporting surface.

[0014] In some embodiments, the fixing frame further includes a reflective layer, and the reflective layer is disposed on an inner surface of the frame.

[0015] The embodiment of the present application also provides a backlight module, including:

[0016] A fixing frame, wherein the fixing frame is the above-mentioned fixing frame;

[0017] A diaphragm assembly is disposed in the accommodating space and overlapped in the groove.

[0018] The present application also provides a display device, including:

[0019] A backlight module, wherein the backlight module is the above-mentioned backlight module;

[0020] A liquid crystal module is arranged opposite to the backlight module, and the liquid crystal module is connected to the frame.

[0021] In some embodiments, the display device further includes a first adhesive member, which is disposed between the liquid crystal module and the backlight module, and is configured to fix the liquid crystal module to the backlight module.

[0022] In some embodiments, the display device further includes an auxiliary positioning component, the auxiliary positioning component is connected to the backlight module and the liquid crystal module, and the auxiliary positioning component corresponds to the first adhesive member.

[0023] In some embodiments, the auxiliary positioning component includes a first magnetic member and a second magnetic member, the first magnetic member is arranged on the backlight module, the second magnetic member is arranged on the liquid crystal module, and the first adhesive member is arranged between the first magnetic member and the second magnetic member.

[0024] In some embodiments, the display device also includes a middle frame, the middle frame includes a first frame portion, a second frame portion and a third frame portion, 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, the second frame portion and the third frame portion extend in a direction perpendicular to the thickness direction of the display device, the second frame portion is connected to a side of the liquid crystal module away from the backlight module, and the third frame portion is connected to a side of the backlight module away from the liquid crystal module.

[0025] In the fixing frame, backlight module and display device provided in the embodiment of the present application, the fixing frame is surrounded to form a receiving space, the fixing frame includes a frame, the inner surface of the frame is provided with a groove, the frame includes a first supporting portion and a second supporting portion, the first supporting portion and the second supporting portion are surrounded to form a groove, and the groove is used to fix the diaphragm assembly. In other words, the diaphragm assembly can be arranged in the groove, and the liquid crystal module can be arranged outside the receiving space and connected to the end face of the frame. In this embodiment, the liquid crystal module and the diaphragm assembly adopt a layered layout, and the two are not fixed on the same plane. Through the clever use of this layered design, sufficient fixing area can be 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of the structure of a display device in the prior art.

[0028] Figure 2 A schematic diagram of the first structure of the fixing frame provided in an embodiment of the present application.

[0029] Figure 3 A first structural diagram of the framework provided in the embodiment of the present application.

[0030] Figure 4 A second structural diagram of the framework provided in the embodiment of the present application.

[0031] Figure 5 A third structural diagram of the framework provided for an embodiment of the present application.

[0032] Figure 6 A fourth structural diagram of the framework provided for an embodiment of the present application.

[0033] Figure 7 A fifth structural diagram of the framework provided in the embodiment of the present application.

[0034] Figure 8 A sixth structural diagram of the framework provided for an embodiment of the present application.

[0035] Fig. 9 A seventh structural diagram of the framework provided for an embodiment of the present application.

[0036] Fig.10 The eighth structural diagram of the framework provided for the embodiment of the present application.

[0037] Fig.11 A ninth structural diagram of the framework provided for an embodiment of the present application.

[0038] Fig.12 A second structural schematic diagram of the fixing frame provided in an embodiment of the present application.

[0039] Fig.13 A third structural schematic diagram of the fixing frame provided in an embodiment of the present application.

[0040] Fig.14 A schematic diagram of the structure of the filling piece provided in an embodiment of the present application.

[0041] Fig.15 A fourth structural schematic diagram of the fixing frame provided in an embodiment of the present application.

[0042] Fig.16 A fifth structural schematic diagram of the fixing frame provided in an embodiment of the present application.

[0043] Fig.17 The tenth structural diagram of the framework provided for the embodiment of the present application.

[0044] Fig.18 A schematic diagram of the structure of the backlight module provided in an embodiment of the present application.

[0045] Fig.19 A first structural schematic diagram of a display device provided in an embodiment of the present application.

[0046] Fig. 20 A second structural schematic diagram of the display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0048] See also Figure 1 , Figure 1 It is a schematic diagram of the structure of a display device in the prior art.

[0049] In display technology and related fields, the fixation of the liquid crystal component 17 and the stability of the membrane 14 are key factors in ensuring the display quality of the display device 400. In particular, as the display device 400 pursues a design trend of a higher screen-to-body ratio and a narrower frame (BM area), the fixation of the liquid crystal component 17 and the stability of the membrane 14 face unprecedented challenges.

[0050] In order to ensure that the diaphragm 14 does not produce visual defects such as water ripples due to stress concentration when the temperature changes, the plastic frame 12 needs to reserve enough space for the expansion and contraction of the diaphragm 14 when designing. This space requirement is usually met by adjusting the size of the BM area of ​​the liquid crystal assembly 17.

[0051] However, the fixation of the liquid crystal assembly 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 adhesion to prevent the liquid crystal assembly 17 from falling off when used for a long time or subjected to external forces.

[0052] In conventional designs, the space required for the expansion / contraction of the diaphragm 14 and the adhesive area required for the fixation of the liquid crystal assembly 17 jointly occupy the portion of the glue frame 12 corresponding to the BM area. As the design of the display device 400 develops in the direction of a narrower frame, the size of the portion of the glue frame 12 corresponding to the BM area continues to decrease, which leads to a direct conflict between the two requirements. When the size of the portion of the glue frame 12 corresponding to the BM area is not sufficient to simultaneously meet the space requirements for the expansion / contraction of the diaphragm 14 and the adhesive area requirements for the fixation of the liquid crystal assembly 17, the liquid crystal assembly 17 may fall off due to insufficient adhesion, resulting in equipment failure or damage; or, if the space for the expansion / contraction of the diaphragm 14 is reduced in order to increase the adhesive area, the diaphragm 14 may produce visual defects such as water ripples due to temperature changes, seriously affecting the user experience.

[0053] Therefore, in the display device 400 with a narrow BM area design, how to balance the space requirement for expansion / contraction of the membrane 14 and the adhesive area requirement for fixing the liquid crystal assembly 17 becomes a technical problem that needs to be solved urgently.

[0054] The embodiments of the present application provide a fixing frame, a backlight module and a display device, which can provide a sufficient fixing area for the liquid crystal module under the premise of ensuring that the expansion / contraction space of the diaphragm is not affected.

[0055] See also Figure 2 , Figure 2 A schematic diagram of the first structure of the fixing frame provided in an embodiment of the present application.

[0056] The embodiment of the present application provides a fixing frame 1, which includes a frame 11. The material of the frame 11 can be plastic, silicone or metal.

[0057] The frame 11 is arranged to form a receiving space 111 for installing and fixing internal components of the display device 100 , such as fixing the diaphragm assembly 2 .

[0058] The inner surface of the frame 11 is provided with a groove 113, which is communicated with the accommodating space 111 and is used to accommodate the diaphragm assembly 2. The diaphragm assembly 2 can be arranged inside the accommodating 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.

[0059] See also Figure 3 , Figure 3 The first structural diagram of the frame provided in the embodiment of the present application. 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 are arranged to form a groove 113, and the groove 113 is used to accommodate the diaphragm assembly 2. The liquid crystal module 20 can be connected to the end surface of the frame 11.

[0060] In other words, the liquid crystal module 20 and the diaphragm assembly 2 are arranged in layers in this embodiment, and the two are not fixed on the same plane. Through the clever use of this layered design, sufficient fixing area can be provided for the liquid crystal module 20 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 100.

[0061] The first supporting portion 115 has a first supporting surface 1151. On the frame 11, the first supporting surface 1151 refers to a plane or surface for supporting and fixing the diaphragm assembly 2. The first supporting 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 supporting surface 1151 can be used to support the diaphragm assembly 2.

[0062] The second supporting portion 117 is connected to the first supporting surface 1151 of the first supporting portion 115, and the side of the second supporting portion 117 away from the first supporting portion 115 forms a second supporting surface 1171. On the frame 11, the second supporting surface 1171 refers to a plane or surface used to support and fix the liquid crystal module 20. Similar to the first supporting surface 1151, the second supporting 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 supporting surface 1171 can be used to support the liquid crystal module 20.

[0063] 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, and a sufficient adhesive area is provided for the liquid crystal module 20 without affecting the expansion / contraction space of the diaphragm assembly 2, thereby significantly improving the display quality and stability of the overall display device 100.

[0064] The area of ​​the connection region between the second support portion 117 and the first support portion 115 is the first area, the area of ​​the second supporting surface 1171 is the second area, and the first area is smaller than the second area.

[0065] Since the first support portion 115 is mainly responsible for supporting the diaphragm assembly 2, the connection area between it and the second support portion 117 does not need to be too large, as long as it can meet the requirements of the stable connection between the two. Therefore, the first area is set to be relatively small, which not only saves material costs, but also avoids unnecessary space occupation, making the structure of the entire frame 11 more compact and efficient. The area of ​​the second supporting surface 1171 is the second area, and the second area is larger than the first area. This is because the second supporting surface 1171 needs to stably support the key component of the liquid crystal module 20 to ensure that it will not be displaced due to vibration or external force. The stability and firmness of the liquid crystal module 20 are crucial to the overall performance of the display device 100. Therefore, the design of the second supporting surface 1171 needs to pay more attention to 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 the adhesion and fixed stability.

[0066] In the direction from the first support portion 115 to the second support portion 117, the cross-sectional area of ​​the second support portion 117 gradually increases. As a key component for supporting the liquid crystal module 20, the second support portion 117 needs to have 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, so that it can maintain a stable shape when facing external forces or vibrations, thereby ensuring the stability of the liquid crystal module 20. At the same time, this design strategy also helps to optimize the internal space utilization of the display device 100.

[0067] In the context of narrow BM area 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 the space of other components. This not only improves the overall performance of the display device 100, but also brings a clearer and more stable display effect to the user. In addition, the gradual increase in the cross-sectional area not only improves the load-bearing capacity and stability of the second support portion 117, but also makes the frame 11 easier to demold during the preparation process. This reduces production costs and improves production efficiency.

[0068] Furthermore, the first support portion 115 and the second support portion 117 are integrally formed. Specifically, the design manufactures the first support portion 115 and the second support portion 117 as a whole through injection molding, extrusion or other appropriate 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 improving the overall performance and stability of the display device 100.

[0069] See also Figure 4 as well as Figure 5 , Figure 4A second structural diagram of the framework provided in the embodiment of the present application, Figure 5 A third structural diagram of the framework provided for an embodiment of the present application.

[0070] When the diaphragm assembly 2 is installed on the frame 11, if the overlapping position of the diaphragm assembly 2 is located exactly at the junction area between the display area 200 and the non-display area 300 (i.e., the junction between the BM area and the non-BM area), it may cause a dim visual effect at the junction.

[0071] In order to solve the above technical problems, the fixing frame 1 in the embodiment of the present application also includes a rib 119, which is arranged on the first supporting surface 1151 and protrudes from the first supporting surface 1151. The main function of the rib 119 is to lift the diaphragm assembly 2 appropriately, 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 the penetration of light and significantly expands the area illuminated by light, especially increasing the light intake space within a depth range of 0.5 mm and above outside the display area 200, thereby significantly improving the brightness performance of the non-display area 300 adjacent to the edge of the display area 200, effectively alleviating the visual dimming phenomenon caused by the obstruction of light transmission, and improving the display effect as a whole.

[0072] The number of the ribs 119 is at least two, and the ribs 119 are distributed at intervals to ensure stable support for the diaphragm assembly 2 .

[0073] In the direction from the first supporting portion 115 to the second supporting portion 117, the cross-sectional area of ​​the rib 119 gradually decreases, that is, the contact area between the rib 119 and the first supporting surface 1151 is larger 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.

[0074] The ribs 119 include dot-shaped ribs 119 or long strip-shaped ribs 119. The dot-shaped ribs 119 have a smaller volume and a flexible layout, which minimizes interference with light transmission; while the long strip-shaped ribs 119 provide a more stable support for the diaphragm assembly 2 with its continuous shape and larger contact area.

[0075] When the rib 119 is a long strip rib 119, the extension direction of the rib 119 is perpendicular to the edge of the first supporting surface 1151 close to the inner side of the accommodating space 111, i.e., the frame 11. This not only enables the rib 119 to better resist the lateral pressure from the diaphragm assembly 2, but also ensures that the propagation direction of the light is not obstructed, thereby further improving the display effect.

[0076] The extension length of the ribs 119 is equal to the width of the first supporting surface 1151 in the direction perpendicular to the thickness of the frame 11, which not only significantly enhances the overall structural strength of the frame 11 and provides a more stable support for the diaphragm assembly 2, but also effectively avoids the risk of the diaphragm assembly 2 falling off the ribs 119 during thermal expansion and contraction. Specifically, whether the diaphragm assembly 2 is in a contracted or expanded state, it can be tightly and evenly supported by the ribs 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 better display experience.

[0077] When the ribs 119 are point-shaped ribs 119, the projection of the ribs 119 on the first supporting surface 1151 is circular, and / or elliptical, and / or polygonal. This not only enriches the shape selection of the ribs 119, but also can be flexibly adjusted according to the needs of actual application scenarios, thereby meeting different display effects and performance requirements.

[0078] The height of the ribs 119 in the present application is greater than or equal to 0.3 mm. The ribs 119 within this height range can provide sufficient penetration space for light, which is convenient for increasing the light intake space within a depth range of 0.5 mm and above outside the display area 200 starting from the junction of the display area 200 and the non-display area 300. This allows light to 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.

[0079] Furthermore, the ribs 119 are transparent, which not only retains the original supporting function of the ribs 119, but also uses a transparent material to further reduce the obstruction of the ribs 119 to the light when the 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 transparent ribs 119 provides a more transparent visual effect for the display device 100 and enhances the user's visual experience.

[0080] The material of the ribs 119 is an elastic material. The elastic material has excellent flexibility and recovery, and 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 ribs 119. In addition, the elastic ribs 119 can also provide a buffer for the diaphragm assembly 2 and extend the service life of the display device 100.

[0081] Specifically, the ribs 119 can be manufactured by plastic processing techniques 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 ribs 119, but also have good processing performance and cost-effectiveness, and are suitable for large-scale production applications.

[0082] The first supporting portion 115 and the second supporting portion 117 in the above embodiment not only assume the basic function of bearing and fixing, but also optimize the display effect of the display device 100 .

[0083] Please continue reading Figure 3 Specifically, the first support portion 115 also has a first inclined surface 1153, and the first inclined surface 1153 faces the inner side of the accommodating space 111, i.e., the frame 11, and the first inclined surface 1153 is connected to the first supporting surface 1151. The first inclined surface 1153 gradually inclines from the first supporting surface 1151 toward the direction close to the accommodating space 111, i.e., the inner side of the frame 11, and is cleverly designed to surround the upper part or all around the light-emitting unit and / or the light guide plate, and extend outward. This design not only avoids the problem of shading, but also achieves the dual functions of light guiding and light leakage prevention through its inclined structure, significantly increases the effective area of ​​light, thereby improving the utilization rate of light, and makes the brightness distribution of the display device 100 more uniform, thereby enhancing the visual experience of the user.

[0084] See also Figure 6 , Figure 6 The fourth structural diagram of the frame provided by the embodiment of the present application is as follows: The first inclined surface 1153 is at least partially disposed corresponding to the non-display area 300 to optimize the light transmission path in the non-display area 300 .

[0085] The diaphragm assembly 2 is located inside the accommodation space 111, i.e., the inner side of the frame 11, and overlaps above the first supporting surface 1151. This design ensures the stability and position accuracy of the diaphragm assembly 2, and provides reliable support for the display device 100. At the same time, the diaphragm assembly 2 and the first inclined surface 1153 are spaced apart, so that there is a gap 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 1153, thereby optimizing the light conduction path in the non-display area 300.

[0086] Furthermore, the embodiment of the present application increases the light-entry space below the diaphragm assembly 2 within a depth range of more than 0.5 mm outside the corresponding display area 200. This design allows light to penetrate more smoothly below the diaphragm assembly 2 and illuminate the diaphragm assembly 2, effectively reducing the loss of light during transmission, thereby improving the overall brightness of the display device 100.

[0087] 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 0.3 mm in the embodiment of the present application. The setting of this gap also helps light to penetrate more smoothly under the diaphragm assembly 2, further reducing light loss and improving display brightness.

[0088] Please continue reading Figures 6 to 8 , Figure 7 A fifth structural diagram of the framework provided in the embodiment of the present application is shown in FIG. Figure 8 The sixth structural diagram of the frame provided in the embodiment of the present application. Regarding the specific shape of the first inclined surface 1153, the embodiment of the present application provides two optional solutions: a curved surface (such as Figure 6 as well as Figure 7 ) or folded surface (such as Figure 8 ). When the first inclined surface 1153 is a curved surface, it is preferably a smooth arc surface, which helps to evenly distribute light, reduce glare and reflection, and further improve the display effect.

[0089] Please continue reading Figure 3 The second support portion 117 also has a second inclined surface 1172, the second inclined surface 1172 faces the inner side of the accommodating space 111, i.e., the frame 11, the second inclined surface 1172 is connected to the second supporting surface 1171, and the second inclined surface 1172 is inclined from the second supporting surface 1171 toward the inner side away from the accommodating 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 completely placed on the first supporting surface 1151. This process not only reduces the friction and resistance during installation, but also improves the accuracy and efficiency of installation.

[0090] For further information, see Fig. 9 , Fig. 9 The seventh structural diagram of the frame provided in the embodiment of the present application. The second support portion 117 includes a sub-connection portion 1173 and a sub-support portion 1174, the sub-connection portion 1173 is connected to the first support portion 115, the sub-connection portion 1173 extends along the thickness direction of the frame 11, and the sub-support portion 1174 is connected to the side of the sub-connection portion 1173 away from the first support portion 115; the side of the sub-support portion 1174 away from the sub-connection portion 1173 is the second supporting surface 1171, and the side of the sub-support portion 1174 close to the accommodating space 111, i.e., the inner side of the frame 11, is the second inclined surface 1172.

[0091] The sub-connecting portion 1173 is closely connected to the first supporting surface 1151 of the first supporting portion 115. This connection method ensures the stability between the two, thereby ensuring the stability of the frame 11 under various conditions. The area of ​​the connection region between the sub-connecting portion 1173 and the first supporting portion 115 is the first area, and the first area is relatively small to save materials and avoid unnecessary space occupation. At the same time, the sub-connecting portion 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 tolerance of the frame 11, thereby improving the overall tolerance of the frame 11 and extending the service life.

[0092] The sub-supporting portion 1174 is connected to the side of the sub-connecting portion 1173 away from the first supporting portion 115, forming the main body of the second supporting portion 117. A flat and stable second supporting surface 1171 is provided on the side of the sub-supporting portion 1174 away from the sub-connecting portion 1173, and the second supporting surface 1171 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.

[0093] The connection area between the sub-connection part 1173 and the first support part 115 (i.e., the first area) and the connection area between the sub-connection part 1173 and the sub-support part 1174 (the third area) are designed to be much smaller than the second bearing area (the second area). This design not only saves material costs, but also avoids unnecessary space occupation, making the structure of the entire frame 11 more compact and efficient.

[0094] In addition, the thickness of the sub-connecting portion 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 size changes of the diaphragm assembly 2, thereby ensuring the stability and reliability of the diaphragm assembly 2 during long-term use.

[0095] In the prior art, the frame 11 is often designed to partially or completely extend to the effective display area 200 of the display panel (i.e., extending 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 the backlight, which easily forms a shadow on the display screen, affecting the 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 part of the light to be absorbed rather than penetrated, thereby forming a phenomenon of insufficient light at the edge of the display area 200 or a specific position, i.e., a shadow. The shadow not only reduces the overall brightness of the picture, but may also cause color distortion, seriously damaging the user's viewing experience.

[0096] To solve the above problems, the fixing frame 1 also includes a reflective layer. The reflective layer is cleverly arranged on the inner surface of the frame 11, and its position is close to the edge of the display area 200, which can fully utilize the spatial advantage of the frame 11 to reflect the originally blocked light to the edge of the display area 200 or the membrane assembly 2. This design not only effectively reduces the absorption of light, but also significantly improves the utilization rate of light, making the light distribution in the display area 200 more uniform and the brightness of the picture more consistent.

[0097] By introducing the reflective layer, the embodiment of the present application 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 the specific application scenario, such as adjusting the material, thickness, shape and other parameters of the reflective layer to optimize the light reflection effect and achieve the best optical performance.

[0098] In some cases, see Fig.10 , Fig.10 The eighth structural diagram of the frame provided in the embodiment of the present 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 has helped to optimize the light transmission path, and the addition of the first reflective layer 13 further improves the utilization efficiency of the light, and can reflect the light to the edge of the display area 200 to avoid the occurrence of shadow problems.

[0099] The first reflective layer 13 and the first inclined surface 1153 can be combined in various ways. The first reflective layer 13 can be directly attached to the first inclined surface 1153, or other technical means can be used to achieve the reflective function. 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, and each material has its own unique advantages.

[0100] When the first reflective layer 13 is an ink layer, the ink layer has the advantages of low cost and simple processing, and the light reflectivity can be precisely controlled by mixing the ink formula. The ink layer material can be active ink, water-based ink, ultraviolet curing ink, thermal transfer ink, metal ink, fluorescent ink, etc.

[0101] Specifically, through the high-precision printing capability of silk screen printing or pad printing, the ink with high reflectivity is evenly and firmly attached 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 the efficient use of light during the penetration or reflection process, thereby effectively reducing the shadow phenomenon caused by the frame 11 blocking.

[0102] Compared with direct injection molding or aluminum drawing process, the screen printing / pad printing solution of the present application has higher flexibility and accuracy. High reflectivity ink is applied on the first inclined surface 1153 without changing the material or process of the entire fixing frame 1. This not only reduces the production cost, but also improves the production efficiency, making the preparation of the fixing frame 1 more economical and efficient.

[0103] See also Fig.11 , Fig.11 A ninth structural diagram of a frame provided in an embodiment of the present 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), and can also be a composite material such as a reflective microsphere composite material.

[0104] The present application provides two process methods for setting the first reflective layer 13 on the first inclined surface 1153 of the frame 11: a secondary injection molding solution and a dual-material co-extrusion molding solution.

[0105] The secondary injection molding scheme is specifically as follows: this scheme divides the fixing frame 1 into two independent parts, and respectively adopts two injection molding processes for molding. In the first injection molding process, ordinary materials are selected as injection molding raw materials, and the basic structure of the frame 11 is formed, such as forming the first support part 115 and the second support part 117 through a standard injection molding process, to ensure that the product can meet the basic force requirements and provide stable support for subsequent assembly and use. In the second injection molding process, special materials with high reflectivity characteristics are used. The key to this step is to accurately inject high-reflectivity materials into the part of the frame 11 that is directly related to optical reflection, thereby significantly improving the reflectivity of this area to meet the high requirements of the product for optical performance.

[0106] The double-material co-extrusion scheme is specifically as follows: this scheme adopts an extrusion process to achieve composite molding of the fixing frame 1 by double-material co-extrusion. The first material, with its excellent mechanical properties and cost-effectiveness, is used to form the basic force-bearing parts of the frame 11, such as the first support part 115 and the second support part 117. This part of the material ensures the structural stability and durability of the frame 11, and meets the basic needs of the product in daily use. The second material, which has 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 the designated area of ​​the frame 11 (on the first inclined surface 1153), thereby significantly improving the light reflection effect in this area and meeting the high requirements of the product for optical performance. Through the double-material co-extrusion scheme, not only the dual optimization of the structure and performance of the frame 11 is achieved, but also the production efficiency and material utilization rate are improved.

[0107] In addition, the first reflective layer 13 may also include a grating structure and / or a metasurface structure. As an optical element with a periodic structure, the grating structure can realize diffraction and interference of light, and accurately control the propagation direction and intensity of light. The metasurface structure is composed of sub-wavelength structural units, has a powerful light manipulation capability, and can realize flexible regulation of light phase, polarization and amplitude. Integrating the grating structure and / or metasurface structure into the first reflective layer 13 not only significantly improves the light reflectivity, but also realizes precise control of the light propagation path, effectively reduces the shadow phenomenon, and can adjust the light distribution according to the specific application scenario to improve the overall brightness and uniformity of the display screen.

[0108] In other cases, see Fig.12 , Fig.12 A second structural schematic diagram of a fixing frame provided in an embodiment of the present application. The fixing frame 1 also includes a second reflective layer 15, and the second reflective layer 15 is arranged on the second inclined surface 1172. This second reflective layer 15 can reflect light, and it can effectively reflect the light that may have been directly absorbed or blocked by the frame 11, and guide these light rays back to the diaphragm assembly 2. After the diaphragm assembly 2 is adjusted again, these reflected light rays can smoothly pass through the liquid crystal module 20 and participate in the construction of the image. This innovative design not only significantly improves the efficiency of light utilization, but also fundamentally reduces the shadow phenomenon caused by the light being blocked by the frame 11, and ensures that the display device 100 has uniform light distribution in the edge area and as a whole, thereby achieving higher quality imaging effects, including higher brightness uniformity and more accurate color performance, bringing users a more excellent visual experience.

[0109] The material selection of the second reflective layer 15 is also flexible and diverse, and can be an ink layer, a plastic layer or an aluminum layer, each of which has its own unique advantages. The ink layer is known for its low cost and easy processing, and by carefully mixing the ink formula, the light reflectivity can be precisely controlled. The ink layer material can include reactive inks, water-based inks, UV-curable inks, thermal transfer inks, metallic inks, fluorescent inks and other types. The plastic layer is known for its 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 aluminum layer is widely used in high-end display devices 100 due to its excellent reflective performance and stability.

[0110] In view of the material irregularity or thermal expansion that the diaphragm assembly 2 may encounter, the frame 11 in the embodiment of the present application is cleverly provided with an avoidance hole on the second support portion 117. The axial direction of the avoidance hole is perpendicular to the thickness direction of the frame 11, providing a sufficient tolerance space for the diaphragm assembly 2 to accommodate its possible outward extension or slight deformation under certain conditions. This design not only ensures that the diaphragm assembly 2 can maintain structural stability and functional integrity when slight expansion or irregular shape occurs, but also effectively avoids direct contact and potential friction between the diaphragm assembly 2 and the frame 11, thereby preventing possible optical performance degradation or structural damage caused thereby.

[0111] Furthermore, the avoidance hole is 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 avoidance hole 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 avoidance hole can be adjusted according to the shape and size of the diaphragm assembly 2 to ensure that the gap between it and the diaphragm assembly 2 is moderate, so as to neither cause interference nor affect the supporting effect of the filler 16.

[0112] In some cases, during the manufacturing process of the liquid crystal display module, the film assembly 2 needs to be accurately installed on the frame 11 in a top-to-bottom order. However, since the optical film assembly 2 may have local irregularities, such as uneven thickness, shape deviation, etc., direct installation may cause interference between the film assembly 2 and the frame 11, affecting the optical performance and structural stability of the display module.

[0113] So, please see Fig.13 , Fig.13 The third structural schematic diagram of the fixing frame provided in the embodiment of the present application. In the fixing frame 1 provided in the embodiment of the present application, a notch 1175 is provided on the second support portion 117, and the fixing frame 1 further includes a filling member 16, which is provided at the notch 1175, and a avoidance hole is provided on the filling member 16, and the axial direction of the avoidance hole is perpendicular to the thickness direction of the frame 11.

[0114] A notch 1175 is pre-set on the frame 11, and 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 from top to bottom in the frame 11, 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, the embodiment of the present application 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 accurately placed in the notch 1175 and tightly connected to the frame 11 using an appropriate fixing method (such as bonding, snap-fitting, etc.). In addition, in order to further optimize the design of the filler 16, the embodiment of the present application also provides an avoidance hole on the filler 16. The axial direction of the avoidance hole is perpendicular to the thickness direction of the frame 11, and is intended to provide additional space to further avoid interference between the diaphragm assembly 2 and the filler 16, and to improve the optical performance of the display module.

[0115] See also Fig.14 , Fig.14 A schematic diagram of the structure of a filling member provided in an embodiment of the present application. The filling member 16 includes a first filling portion 161 and a second filling portion 162 connected to each other, the first filling portion 161 extending along the thickness direction of the frame 11, the second filling portion 162 extending along a thickness direction perpendicular to the frame 11, the first filling portion 161 is connected to the first supporting portion 115, and the second filling portion 162 is arranged opposite to the first supporting surface 1151.

[0116] 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 piece 16 and the frame 11. In order to achieve a stable connection, the first filling portion 161 is designed to be connected to the first support portion 115 on the frame 11, and the connection can be achieved by, but not limited to, bonding, snap-fitting, screw threading and other fastening methods to ensure that the filling piece 16 can be firmly fixed on the frame 11.

[0117] The second filling portion 162 extends perpendicularly to the thickness direction of the frame 11, and is designed to provide additional support and positioning functions for the diaphragm assembly 2. Therefore, the second filling portion 162 is arranged to be opposite to the first supporting surface 1151 below the diaphragm assembly 2, providing a contraction or expansion space for the diaphragm assembly 2, avoiding interference between the diaphragm assembly 2 and the filling member 16, thereby ensuring the optical performance of the display module.

[0118] To further improve reflection efficiency, see Fig.14 as well as Fig.15 , Fig.14 A schematic diagram of the structure of the filling member provided in the embodiment of the present application, Fig.15A fourth structural schematic diagram of a fixing frame provided in an embodiment of the present application. The fixing frame 1 also includes a third reflective layer 18, which is arranged on a side of the second filling portion 162 close to the first supporting surface 1151. The third reflective layer 18 can reflect the light transmitted from the diaphragm assembly 2 to improve the optical performance of the display module. The filling member 16 can be contoured according 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 effect differences and improving the optical performance of the display module.

[0119] In some cases, a side of the second filling portion 162 close to the first supporting surface 1151 is flush with the second inclined surface 1172 , ensuring that the contact surface between the filling member 16 and the diaphragm assembly 2 is smooth to avoid optical interference.

[0120] 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 second filling portion 162 is flush with the second supporting surface 1171 and 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.

[0121] The present application has two specific situations for the arrangement of the filling member 16. The filling member 16 includes two types of filling members 16, with different specific structures and materials.

[0122] Please continue reading Fig.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 made by various molding methods such as injection molding, extrusion molding, aluminum drawing, and die casting to meet different production needs and cost requirements. The filler 16 can be contoured according to the second inclined surface 1172 of the frame 11 on the side with the third reflective layer 18, that is, the side of the second filling portion 162 relative to the first supporting surface 1151. This contouring design can ensure the consistency of the reflection angle, thereby avoiding visual effect differences and improving the optical performance of the display module.

[0123] See also Fig.16 , Fig.16The fifth structural diagram of the fixing frame provided in the embodiment of the present application. The filling member 16 can be a sheet metal part. Due to the limitations of its material and molding process, it may not be possible to perform profiling, resulting in inconsistent reflection angles and visual effect differences. In order to solve the above problems, the embodiment of the present application proposes to paste a reflective sheet on the inner side of the second filling portion 162 of the filling member 16. The reflective sheet can improve the reflectivity, so that the reflection effect at the filling member 16 is consistent with that at other positions, thereby avoiding visual effect differences and improving the optical performance of the display module.

[0124] In summary, the embodiment of the present application successfully solves the installation problem caused by the local irregularity of the optical film assembly 2 during the manufacturing process of the liquid crystal display module by filling the gap 1175 of the frame 11. Both solutions of the embodiment of the present application can ensure that the film assembly 2 is smoothly and accurately installed on the frame 11, while avoiding interference with the local irregularity of the film assembly 2 and restoring the integrity of the frame 11. In addition, through the contour design and the pasting of the reflective sheet, the embodiment of the present application can also ensure the optical performance and structural stability of the display module and improve the overall performance of the product.

[0125] See also Fig.17 , Fig.17 The tenth structural schematic diagram of the frame provided in the embodiment of the present application. The fixing frame 1 also includes a transparent block 1176, which is connected to the second support portion 117 close to the inner side of the accommodating space 111, i.e., the frame 11, and extends along the second supporting surface 1171. The transparent block 1176 can increase the area of ​​the second supporting surface 1171, aiming to increase the effective area of ​​the second supporting surface 1171, thereby increasing the supporting area provided for the liquid crystal module 20, and ensuring the stable fixation of the liquid crystal module 20 in the display device 100.

[0126] The transparent block 1176 may be made of PET (Polyethyleneterephthalate) or polymethyl methacrylate (PMMA, commonly known as organic glass). PET plastic has good optical properties and weather resistance, and amorphous PET plastic has excellent optical transparency, which can ensure smooth transmission of light. PMMA is currently the best polymer transparent material, with a visible light transmittance of up to 92%, far exceeding ordinary glass, which can further improve the optical performance of the display device 100.

[0127] In summary, the fixing frame 1 structure in the embodiment of the present application significantly increases the area of ​​the second supporting surface 1171 by adding the transparent block 1176 , thereby 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 .

[0128] See also Fig.18 , Fig.18 A schematic diagram of the structure of the backlight module provided in the embodiment of the present application. The embodiment of the present application also provides a backlight module 10, which is used to provide sufficient brightness and uniformly distributed light sources so that the liquid crystal display screen can display images normally. The backlight module 10 has a display area 200 and a non-display area 300 surrounding the display area 200, and the non-display area 300 is also called a 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 liquid crystal panel screen, the BM area is located at the outermost periphery 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 improperly designed or too narrow, light leakage may occur at the edge of the screen, and even obvious halos may be formed on a pure black screen, affecting the display effect.

[0129] The backlight module 10 may include a direct-type backlight module and an edge-type backlight module. The direct-type backlight mode generally refers to the use of multiple LED lamp beads as light sources, which are directly arranged on the back of the liquid crystal panel. The direct-type backlight can provide a uniform and high-brightness backlight effect, which is suitable for a large-size display device 100. The direct-type backlight module is used for illustration in the embodiments of the present application.

[0130] The backlight module 10 includes the fixing frame 1 and the diaphragm assembly 2 in the above embodiment. The diaphragm assembly 2 is arranged in the accommodating space 111 of the fixing frame 1, i.e., the inner side of the frame 11, and the diaphragm assembly 2 is overlapped in the groove 113, and the groove 113 provides additional space for the expansion or contraction of the diaphragm assembly 2.

[0131] The diaphragm assembly 2 usually includes one or more layers of thin films, which may have different functions, such as polarization, filtering, protection, etc. The diaphragm assembly 2 includes a lower diffuser, a prism sheet, and an upper diffuser, which are arranged in sequence, and each layer is tightly fitted to ensure the effective transmission and regulation of light. Specifically, the lower diffuser is precisely arranged on the first frame portion (i.e., a specific part of the frame 11), which is mainly used to collect and uniformize the light emitted from the light guide plate to ensure that the light can be smoothly projected onto the subsequent prism sheet. The full name of the prism sheet is Brightness Enhancement Film (BEF), which is placed on the lower diffuser. When the light from the backlight source passes through the prism sheet, its unique prism structure can guide the light so that it can only be effectively emitted through refraction when the light is incident at a specific angle. The remaining light that does not meet the refraction condition will be reflected back to the light source by the edge of the prism and reused through the reflective sheet at the bottom of the light source. This process ensures the efficient recycling of light in the backlight source, so that the light originally diverging in all directions is effectively controlled within a narrow angle range (for example, 70% of the light is controlled within a specific angle), thereby significantly enhancing the axial brightness. The upper diffuser is arranged on the prism sheet, which is not only responsible for further atomizing the light emitted by the prism sheet to ensure that the light is evenly transmitted, but also plays an important role in protecting the prism sheet from external damage. Through the processing of the upper diffuser sheet, the display device 100 can provide a more uniform and soft surface light source, thereby improving the overall visual effect.

[0132] As in the above embodiment, the frame 11 includes a first supporting portion 115 and a second supporting portion 117 . The first supporting portion 115 has a first supporting surface 1151 . The second supporting portion 117 is connected to the first supporting surface 1151 of the first supporting portion 115 .

[0133] The first supporting portion 115 further has a first inclined surface 1153, the first inclined surface 1153 faces the inner side of the accommodating space 111, i.e., the frame 11, and the first inclined surface 1153 is connected to the first supporting surface 1151, and the first inclined surface 1153 is inclined from the first supporting surface 1151 toward the inner side of the accommodating space 111, i.e., the frame 11. In some embodiments, at least a portion of the first inclined surface 1153 is correspondingly disposed at the junction of the display area 200 and the non-display area 300.

[0134] The diaphragm assembly 2 is located inside the accommodation space 111, i.e., the inner side of the frame 11, and the diaphragm assembly 2 is overlapped above the first supporting surface 1151, ensuring the stability and position accuracy of the diaphragm assembly 2. There is a gap between the diaphragm assembly 2 and the first inclined surface 1153, and the gap allows light to penetrate between the diaphragm assembly 2 and the first inclined surface, optimizing the light conduction path, effectively illuminating the non-display area 300 below the diaphragm assembly 2, significantly reducing the visual dimness caused by light obstruction, thereby greatly improving the overall brightness of the display device 100.

[0135] Furthermore, below the diaphragm assembly 2, a light intake space is increased at a depth of more than 0.5 mm corresponding 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 light loss during transmission, thereby improving the overall brightness of the display device 100.

[0136] 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 0.3 mm, so that light can penetrate more smoothly to the bottom of the diaphragm assembly 2, reducing light loss during transmission, thereby improving the overall brightness of the display device 100.

[0137] The first inclined surface 1153 may be a curved surface or a folded surface. When the first inclined surface 1153 is a curved surface, the first inclined surface 1153 is an arc surface. When the first inclined surface 1153 is a curved surface, the first inclined surface 1153 may be a smooth arc surface, which helps to evenly distribute light, reduce glare and reflection, and further improve the display effect.

[0138] In some cases, the fixing frame 1 further includes a rib 119, which is disposed on the first supporting surface 1151 and protrudes from the first supporting surface 1151. When the diaphragm assembly 2 is overlapped above the first supporting surface 1151 of the frame 11, the rib 119 abuts against the diaphragm assembly 2 to separate the diaphragm assembly 2 from the first supporting 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 supporting surface. The existence of this gap promotes the penetration of light, effectively expands the area that can be illuminated by light, and thereby enhances the brightness performance of the non-display area 300 adjacent to the edge of the display area 200. This design is intended to alleviate the visual dimming phenomenon that may be caused by obstructed light transmission, thereby improving the overall display effect.

[0139] In an embodiment of the present application, the backlight module 10 may also include a back panel, a light source, a light guide plate, a diaphragm assembly 2, etc. The back panel is used to provide basic support and structural stability. The light source may be an LED (light emitting diode) or a Mini LED, etc., and the light source and the FPC (flexible circuit board) form a light bar. The LED light source can emit stable and high-brightness light. The light guide plate is used to convert the point light source or line light source emitted by the light source into a surface light source so that the light is evenly distributed. The light guide plate is generally made of a material with high light transmittance. There is a mesh design inside the light guide plate, which can scatter light to form a uniform surface light source.

[0140] Furthermore, the back plate is connected to the fixing frame 1. The backlight module 10 further includes a second adhesive member, which is arranged between the back plate and the fixing frame 1 and is used to fix the fixing frame 1 on the back plate. The second adhesive member can be foam glue or AB glue.

[0141] See also Fig.19 , Fig.19 The first structural diagram of the display device provided in the embodiment of the present application. The embodiment of the present application further provides a display device 100, which integrates the frame 11 design described in the above embodiment or the backlight module 10 in the above embodiment, and performs functional and structural optimization on this basis to improve the overall performance and user experience of the display device 100.

[0142] The 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, texts, numbers, etc. that can be recognized by the human eye. The display device 100 can be a television, a computer monitor, a mobile phone screen, a car display screen, etc.

[0143] The display device 100 includes the above-mentioned backlight module 10 and a liquid crystal module 20. The liquid crystal module 20 is overlapped on the second supporting surface 1171 of the frame 11. The liquid crystal module 20 includes a multi-layer structure such as a liquid crystal layer, an electrode, 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, and the polarizing layer is smaller in area than other film layers, that is, it is retracted relative to other film layers. The retraction of the polarizing layer can also effectively prevent light from leaking from the edge of the liquid crystal module 20, avoiding unnecessary halo and glare outside the display area 200. This helps to improve the display effect and user experience of the liquid crystal display.

[0144] like Figure 1In the prior art display device 400, the liquid crystal assembly 17 is usually fixed on the glue frame 12. However, a significant problem in this process is that since the fixing area between the glue frame 12 and the liquid crystal assembly 17 is relatively small, the pasting area is often set outside the polarizing layer 171, that is, the double-sided adhesive 19 and other adhesives do not directly contact the polarizing layer 171. Although this approach can achieve the fixation of the liquid crystal assembly 17 to a certain extent, it may also bring some adverse effects, such as the fixation stability may not be strong enough, or due to the choice of pasting position, unnecessary pressure or damage may be caused to the area around the polarizing layer 171.

[0145] In this application, please continue to refer to Figure 3 as well as Fig.19 By increasing the area of ​​the second supporting surface 1171, the contact area between the liquid crystal module 20 and the fixing frame 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, the polarizer 21 can be more effectively protected from damage. At the same time, since the pasting area is no longer completely located outside the polarizer 21, the risk of scratching or tearing the polarizer 21 caused by the pasting operation can also be reduced.

[0146] The fixing frame 1 in the backlight module 10 is usually a frame-like structure for supporting and fixing other components, such as the diaphragm assembly 2 and the liquid crystal module 20. The fixing frame 1 is surrounded by a receiving space 111, i.e., the inner side of the frame 11, and a groove 113 is provided on the inner surface of the frame 11, close to the receiving space 111, i.e., the inner side of the frame 11. The diaphragm assembly 2 can be arranged inside the receiving space 111, i.e., the inner side of the frame 11, and in the groove 113, and the liquid crystal module 20 can be arranged outside the receiving space 111, i.e., the inner side of 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 manner in this embodiment, and the two are not fixed on the same plane. Through the clever use of this layered design, sufficient fixing area can be 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.

[0147] In order to enhance the connection stability and reliability between the liquid crystal module 20 and the frame 11, the display device 100 further includes a first adhesive member 30, which 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 liquid crystal module 20 is firmly fixed to the frame 11 by the adhesive force of the first adhesive member 30. This fixing method is not only simple and easy, but also can effectively prevent the liquid crystal module 20 from loosening or falling off during long-term use.

[0148] The first adhesive member 30 may be foam glue or AB glue. Both materials have good bonding properties and adaptability, can meet the needs of different occasions, and can maintain a stable connection between the liquid crystal module 20 and the frame 11 for a long time. Foam glue has good adhesion and cushioning properties, and can effectively reduce loosening caused by vibration or impact; foam glue also has a certain elasticity, and can adapt to small dimensional changes between the liquid crystal module 20 and the frame 11. AB glue is a two-component epoxy resin glue that needs to be mixed before use. It has high strength, high hardness and high temperature resistance, and is suitable for occasions that need to withstand large stress and high temperature, and can maintain a stable connection between the liquid crystal module 20 and the frame 11 for a long time.

[0149] See also Fig. 20 , Fig. 20 A second structural schematic diagram of the display device provided in the embodiment of the present application. In order 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, which is connected to the backlight module 10 and the liquid crystal module 20, and the auxiliary positioning component 40 corresponds to the first adhesive member 30. The auxiliary positioning component 40 can be a magnet component or a snap-on component to guide or temporarily fix the backlight module 10 and the liquid crystal module 20. The auxiliary positioning component 40 in the embodiment of the present application is arranged corresponding to the first adhesive member 30 (such as an adhesive layer for fixing the liquid crystal module 20 or other components). This corresponding relationship enables 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 member 30.

[0150] When the auxiliary positioning assembly 40 includes a magnetic component, the magnetic materials of the backlight module 10 and the liquid crystal module 20 respectively attract each other, thereby achieving the functions of guiding and temporarily fixing. This design can achieve fast and accurate positioning without additional mechanical connectors.

[0151] When the auxiliary positioning assembly 40 includes a buckle assembly, the backlight module 10 and the liquid crystal module 20 respectively have a first buckle and a second buckle, and the first buckle and the second buckle engage with each other to fix the liquid crystal module 20 on the fixing frame 1. At the same time, the design of the buckle assembly is also easy to disassemble and reinstall, which provides convenience for repairing and replacing components.

[0152] Specifically, the auxiliary positioning component 40 includes a first magnetic member 401 and a second magnetic member 402. The first magnetic member 401 is arranged on the second supporting surface 1171 of the backlight module 10, and the second magnetic member 402 is arranged on the liquid crystal module 20. The first magnetic member 401 and the second magnetic member 402 are arranged correspondingly, and the first adhesive member 30 is arranged between the first magnetic member 401 and the second magnetic member 402. When the liquid crystal module 20 is overlapped on the second supporting surface 1171, the first magnetic member 401 and the second magnetic member 402 attract each other, thereby providing additional fixing force and positioning guidance. In addition, the first adhesive member 30 is arranged between the first magnetic member 401 and the second magnetic member 402, which not only ensures the effect of adhesive fixing, but also avoids the interference of the magnetic member on the performance of the adhesive member.

[0153] The display device 100 further 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 the peripheral side of the fixing frame 1 and the back plate, 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 100, the second frame portion and the third frame portion extend 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 realizes secondary fixation of the liquid crystal module 20. The third frame portion can be connected to the fixing frame 1 by bolts.

[0154] Further, the display device 100 further includes a third adhesive member, which is disposed between the middle frame and the liquid crystal module 20 and is used to fix the middle frame to the liquid crystal module 20. The third adhesive member is similar to the first adhesive member and is not described in detail herein. Further, the third adhesive member can be disposed between the liquid crystal module 20 and the second frame portion to achieve precise fixation.

[0155] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0156] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0157] The above is a detailed introduction to the fixing frame, backlight module and display device provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only applicable to help understand the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. A fixing bracket, characterized in that: It comprises a frame, the inner surface of which is provided with a groove, the frame comprises a first supporting part and a second supporting part, the first supporting part and the second supporting part are arranged to form the groove, and the groove is used to fix the diaphragm assembly.

2. The fixing bracket according to claim 1, characterized in that: The first supporting portion has a first supporting surface; the second supporting portion is connected to the first supporting surface of the first supporting portion, and a side of the second supporting portion away from the first supporting portion forms a second supporting surface.

3. The fixing bracket according to claim 2, characterized in that: The area of ​​the connection region between the second supporting portion and the first supporting portion is a first area, the area of ​​the second supporting surface is a second area, and the first area is smaller than the second area.

4. The fixing bracket according to claim 3, characterized in that: In a direction from the first supporting portion to the second supporting portion, a cross-sectional area of ​​the second supporting portion gradually increases.

5. The fixing bracket according to claim 2, characterized in that: The first supporting portion further has a first inclined surface, the first inclined surface faces the inner side of the frame, the first inclined surface is connected to the first supporting surface, and the first inclined surface is inclined from the first supporting surface toward the inner side of the frame.

6. The fixing bracket according to claim 2, characterized in that: The second supporting portion further has a second inclined surface, the second inclined surface faces the inner side of the frame, the second inclined surface is connected to the second supporting surface, and the second inclined surface is inclined from the second supporting surface toward the inner side away from the frame.

7. The fixing bracket according to claim 6, characterized in that: The second supporting portion includes a sub-connecting portion and a sub-supporting portion, the sub-connecting portion is connected to the first supporting portion, the sub-connecting portion extends along the thickness direction of the frame, and the sub-supporting portion is connected to a side of the sub-connecting portion away from the first supporting portion; the side of the sub-supporting portion away from the sub-connecting portion is the second supporting surface, and the side of the sub-supporting portion close to the inner side of the frame is the second inclined surface.

8. The fixing bracket according to any one of claims 2 to 7, characterized in that: It also includes a transparent block, which is connected to a side of the second supporting portion close to the inner side of the frame and extends along the second supporting surface.

9. The fixing bracket according to any one of claims 1 to 7, characterized in that: A reflective layer is also included, and the reflective layer is arranged on the inner surface of the frame.

10. A backlight module, characterized in that: include: A fixing frame, wherein the fixing frame is the fixing frame according to any one of claims 1 to 9; A diaphragm assembly is arranged on the inner side of the frame and overlapped in the groove.

11. A display device, characterized in that: include: A backlight module, wherein the backlight module is the backlight module according to claim 10; A liquid crystal module is arranged opposite to the backlight module, and the liquid crystal module is connected to the frame.

12. The display device according to claim 11, characterized in that: The device further comprises a first adhesive member, which is arranged between the liquid crystal module and the backlight module, and is configured to fix the liquid crystal module on the backlight module.

13. The display device according to claim 12, characterized in that: It also includes an auxiliary positioning component, which is connected to the backlight module and the liquid crystal module, and corresponds to the first adhesive member.

14. The display device according to claim 13, characterized in that: The auxiliary positioning component includes a first magnetic component and a second magnetic component, the first magnetic component is arranged on the backlight module, the second magnetic component is arranged on the liquid crystal module, and the first adhesive component is arranged between the first magnetic component and the second magnetic component.

15. The display device according to claim 11, characterized in that: It also includes a middle frame, which includes a first frame portion, a second frame portion and a third frame portion, 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, the second frame portion and the third frame portion extend in a direction perpendicular to the thickness direction of the display device, the second frame portion is connected to a side of the liquid crystal module away from the backlight module, and the third frame portion is connected to a side of the backlight module away from the liquid crystal module.

Images