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 frame comprises a first supporting part and a second supporting part, the first supporting part is provided with a first bearing face, the first bearing face is used for bearing a diaphragm assembly, and the second supporting part is connected to the first bearing face of the first supporting part; and the rib position is arranged on the first bearing surface and protrudes out of the first bearing surface. The fixing frame can improve the display quality and stability of the display device.

Description

TECHNICAL FIELD

[0001] The utility model relates to display technical field especially relates to a fixed frame, backlight module and display device. BACKGROUND

[0002] In the field of display technology and related fields, the fixing of liquid crystal module and the stability of diaphragm are key factors to ensure display quality. Especially under the design trend of pursuing higher screen ratio and narrower frame, the fixing of liquid crystal module and the stability of diaphragm are facing unprecedented challenges.

[0003] With the increasingly narrow frame design of display device, the size of BM (Black Matrix) area also correspondingly greatly reduces, which is also located in the non-display area. The BM area can avoid light leakage at the edge of the screen, effectively prevent halo or glare at the edge of the screen, and ensure the purity and clarity of the display picture. When the diaphragm is placed on the fixed frame, the overlapping position is set at the junction of the display area and the non-display area (i.e. the junction of the BM area and the non-BM area), which will cause the problem of dull visual effect at the junction. Therefore, how to balance the fixing of liquid crystal module, the thermal expansion and contraction requirement of diaphragm and avoid visual defects in limited space has become a key problem to be solved in current display technology. SUMMARY

[0004] The embodiments of the present application provide a fixed frame, a backlight module and a display device, which can improve the display quality and stability of the display device.

[0005] The embodiments of the present application provide a fixed frame, comprising:

[0006] A frame, the frame comprising a first support part and a second support part, the first support part having a first supporting surface for supporting a diaphragm assembly, and the second support part being connected to the first supporting surface of the first support part.

[0007] A rib position, the rib position being arranged on the first supporting surface and protruding from the first supporting surface.

[0008] In some embodiments, the number of rib positions is at least two, and the rib positions are distributed at intervals.

[0009] In some embodiments, in the direction in which the first support part points to the second support part, the cross-sectional area of the rib position gradually decreases.

[0010] In some embodiments, the rib position comprises a dot-shaped rib position or a long strip-shaped rib position.

[0011] In some embodiments, when the rib position is a long strip-shaped rib position, the extension direction of the rib position is perpendicular to the edge of the first supporting surface close to the inner side of the frame.

[0012] In some embodiments, the extension length of the rib position is equal to the width of the first supporting surface along the direction perpendicular to the thickness of the fixing frame.

[0013] In some embodiments, the height of the rib position is greater than or equal to 0.3mm.

[0014] In some embodiments, the rib position is a transparent body.

[0015] In some embodiments, the material of the rib position is an elastic material.

[0016] Embodiments of the present application also provide a backlight module, comprising:

[0017] a fixing frame, which is the fixing frame described above;

[0018] a diaphragm assembly, which is lapped on the first supporting surface of the fixing frame.

[0019] Embodiments of the present application also provide a display device, comprising:

[0020] a backlight module, which is the backlight module described above;

[0021] a liquid crystal module, which is arranged opposite to the backlight module, and is connected with the frame.

[0022] In the fixing frame, the backlight module and the display device provided by embodiments of the present application, the frame is composed of a first supporting part and a second supporting part, the first supporting surface of the first supporting part is used to support the diaphragm assembly, and the second supporting part is used to support the liquid crystal module. The liquid crystal module and the diaphragm assembly adopt a layered layout in the present embodiment, which can provide sufficient fixing area for the liquid crystal module on the premise of ensuring the space for expansion / contraction of the diaphragm. The rib position forms a gap with a certain height between the diaphragm assembly and the first supporting surface. The introduction of the gap effectively promotes the penetration of light, significantly expands the area illuminated by light, and further significantly improves the brightness performance of the edge of the display area adjacent to the non-display area, effectively alleviates the visual dull phenomenon caused by the obstruction of light transmission, and improves the display effect as a whole. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0024] Figure 1 It is a structural schematic diagram of the display device in the prior art.

[0025] Figure 2 The first structure schematic diagram of the fixing frame provided by the embodiment of the present application.

[0026] Figure 3 The first structure schematic diagram of the frame provided by the embodiment of the present application.

[0027] Figure 4 The second structure schematic diagram of the frame provided by the embodiment of the present application.

[0028] Figure 5 The third structure schematic diagram of the frame provided by the embodiment of the present application.

[0029] Figure 6 The fourth structure schematic diagram of the frame provided by the embodiment of the present application.

[0030] Figure 7 The fifth structure schematic diagram of the frame provided by the embodiment of the present application.

[0031] Figure 8 The sixth structure schematic diagram of the frame provided by the embodiment of the present application.

[0032] Figure 9 The seventh structure schematic diagram of the frame provided by the embodiment of the present application.

[0033] Figure 10 The eighth structure schematic diagram of the frame provided by the embodiment of the present application.

[0034] Figure 11 The ninth structure schematic diagram of the frame provided by the embodiment of the present application.

[0035] Figure 12 The second structure schematic diagram of the fixing frame provided by the embodiment of the present application.

[0036] Figure 13 The third structure schematic diagram of the fixing frame provided by the embodiment of the present application.

[0037] Figure 14 The structure schematic diagram of the filling piece provided by the embodiment of the present application.

[0038] Figure 15 The fourth structure schematic diagram of the fixing frame provided by the embodiment of the present application.

[0039] Figure 16 The fifth structure schematic diagram of the fixing frame provided by the embodiment of the present application.

[0040] Figure 17 The tenth structure schematic diagram of the frame provided by the embodiment of the present application.

[0041] Figure 18A structural schematic diagram of a backlight module provided by an embodiment of the present application.

[0042] Figure 19 A first structural schematic diagram of a display device provided by an embodiment of the present application.

[0043] Figure 20 A second structural schematic diagram of a display device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0045] Please refer to Figure 1 , Figure 1 A structural schematic diagram of a display device in the prior art.

[0046] In the field of display technology and related fields, the fixing of the liquid crystal assembly 17 and the stability of the film sheet 14 are key factors to ensure the display quality of the display device 400.

[0047] In order to ensure that the film sheet 14 does not produce visual defects such as water ripples due to stress concentration when the temperature changes, the glue frame 12 needs to reserve enough space for the expansion and contraction of the film sheet 14 when designed. This space requirement is usually met by adjusting the size of the BM area of the liquid crystal assembly 17.

[0048] However, the fixing of the liquid crystal assembly 17 requires enough adhesive area to ensure stability and reliability. The use of adhesives such as double-sided adhesive tape 19 relies on the adhesive area to provide enough adhesion to prevent the liquid crystal assembly 17 from falling off during long-term use or under external force.

[0049] In a conventional design, the space required for the expansion / contraction of the film sheet 14 and the adhesive area required for the fixing of the liquid crystal assembly 17 jointly occupy the part of the glue frame 12 corresponding to the BM area. As the design of the display device 400 develops towards a narrower frame, the size of the part of the glue frame 12 corresponding to the BM area is constantly decreasing, which leads to a direct conflict between the two requirements. When the size of the part of the glue frame 12 corresponding to the BM area is not enough to meet the space requirement for the expansion / contraction of the film sheet 14 and the adhesive area requirement for the fixing of the liquid crystal assembly 17 at the same time, the liquid crystal assembly 17 may fall off due to insufficient adhesion, causing device failure or damage; or if the space for the expansion / contraction of the film sheet 14 is reduced in order to increase the adhesive area, the film sheet 14 may produce visual defects such as water ripples due to temperature changes, seriously affecting the user experience.

[0050] The embodiment of the present application provides a fixing frame, a backlight module and a display device, which can provide sufficient fixing area for the liquid crystal module under the premise of ensuring that the expansion / contraction space of the diaphragm is not affected. The specific description is made below in combination with the drawings.

[0051] Please refer to Figure 2 , Figure 2 The first structural schematic diagram of the fixing frame provided by the embodiment of the present application.

[0052] The embodiment of the present application provides a fixing frame 1, which comprises a frame 11. The material of the frame 11 can be plastic, silica gel and metal.

[0053] The frame 11 surrounds to form an accommodating space 111, which is used for mounting and fixing the inner component of the display device 100, for example, the diaphragm assembly 2.

[0054] The inner surface of the frame 11 is provided with a groove 113, which is communicated with the accommodating space 111. The diaphragm assembly 2 can be arranged in the accommodating space 111 and overlapped in the groove 113, which is used for fixing the diaphragm assembly 2, that is, the groove 113 provides additional space for the expansion or contraction of the diaphragm assembly 2. The liquid crystal module 20 can be connected with the end surface of the frame 11.

[0055] In other words, the liquid crystal module 20 and the diaphragm assembly 2 adopt the layered layout mode in the embodiment, and the two are not fixed in the same plane. Through the ingenious use of the layered design, sufficient fixing area can be provided for the liquid crystal module 20 under the premise of ensuring that the expansion / contraction space of the diaphragm is not affected, so that the display quality and stability of the whole display device 100 are significantly improved.

[0056] Please refer to Figure 3 , Figure 3 The first structural schematic diagram of the frame provided by the embodiment of the present application. The frame 11 comprises a first support part 115 and a second support part 117, and the first support part 115 has a first supporting surface 1151. On the frame 11, the first supporting surface 1151 refers to the plane or surface used 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 mounted and positioned, that is, the first supporting surface 1151 can be used to support the diaphragm assembly 2.

[0057] The second support part 117 is connected to the first supporting surface 1151 of the first support part 115, and the first support part 115 and the second support part 117 form the groove 113. The second supporting surface 1171 is formed on the side of the second support part 117 away from the first support part 115. On the frame 11, the second supporting surface 1171 refers to the 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, i.e., the second supporting surface 1171 can be used to support the liquid crystal module 20.

[0058] 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, sufficient adhesive area is provided for the liquid crystal module 20, thereby significantly improving the display quality and stability of the overall display device 100.

[0059] 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.

[0060] Since the first support part 115 mainly undertakes the task of supporting the diaphragm assembly 2, the connection area between the first support part 115 and the second support part 117 does not need to be too large, as long as it can meet the needs of stable connection. Therefore, the first area is set to be relatively small, which not only saves material cost, 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 bearing capacity. By increasing the second area, the contact area between the first adhesive and the liquid crystal module 20 can be increased, thereby improving the adhesion and stability of the fixation.

[0061] In the direction of the first support part 115 towards the second support part 117, the cross-sectional area of the second support part 117 gradually increases. As a key component for supporting the liquid crystal module 20, the second support part 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 part 117 can be effectively increased, so that it can maintain a stable form 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 utilization of the inner space of the display device 100. In the context of narrow BM area design, by gradually increasing the cross-sectional area of the second support part 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 users a clearer and more stable display effect. Furthermore, the gradual increase in cross-sectional area not only improves the load-bearing capacity and stability of the second support part 117, but also makes the frame 11 easier to demold during preparation. This reduces production costs and improves production efficiency.

[0062] Further, the first support part 115 and the second support part 117 are integrally formed. Specifically, this design manufactures the first support part 115 and the second support part 117 as a whole through injection molding, extrusion or other appropriate molding processes. This integrated design not only simplifies the manufacturing and assembly process, 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.

[0063] Please refer to Figure 4 and Figure 5 , Figure 4 the second structural schematic diagram of the frame provided by the embodiments of the present application, Figure 5 the third structural schematic diagram of the frame provided by the embodiments of the present application.

[0064] When the membrane assembly 2 is installed on the frame 11, if the overlap position of the membrane assembly 2 is exactly located at the junction area of the display area 200 and the non-display area 300 (i.e. the junction of the BM area and the non-BM area), it may cause the problem of dull visual effect at the junction.

[0065] To solve the above technical problems, the fixed frame 1 in the embodiment of the present application further comprises a muscle position 119, which is arranged on the first supporting surface 1151 and protrudes from the first supporting surface 1151. The main function of the muscle position 119 is to moderately lift the diaphragm assembly 2, so as to form a certain height gap between the diaphragm assembly 2 and the first supporting surface 1151. The introduction of this gap effectively promotes the penetration of light, significantly expands the area illuminated by light, especially increases the light entering space in the depth range of 0.5 mm and above outside the display area 200, thereby significantly improving the brightness performance of the display area 200 adjacent to the non-display area 300, effectively alleviating the visual dullness caused by the obstruction of light transmission, and overall improving the display effect.

[0066] The number of muscle positions 119 is at least two, and the muscle positions 119 are distributed at intervals to ensure stable support for the diaphragm assembly 2.

[0067] In the direction in which the first supporting portion 115 points to the second supporting portion 117, the cross-sectional area of the muscle position 119 gradually decreases, that is, the contact area of the muscle position 119 with the first supporting surface 1151 is greater than the contact area of the muscle position 119 with the liquid crystal module 20, which not only improves the reliability of the fixation of the muscle position 119 on the frame 11, but also helps to reduce the obstruction of light transmission by the muscle position 119.

[0068] The muscle position 119 includes a point-like muscle position 119 or a long strip-like muscle position 119. The point-like muscle position 119 has a small volume and a flexible layout, which minimizes the interference with light transmission; while the long strip-like muscle position 119 provides more stable support for the diaphragm assembly 2 with its continuous form and larger contact area.

[0069] When the muscle position 119 is a long strip-like muscle position 119, the extension direction of the muscle position 119 is perpendicular to the edge of the first supporting surface 1151 close to the accommodating space 111, i.e., the inner side of the frame 11. This not only enables the muscle position 119 to better resist the lateral pressure from the diaphragm assembly 2, but also ensures that the propagation direction of light is not obstructed, thereby further improving the display effect.

[0070] The extension length of the muscle position 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, providing more stable support for the diaphragm assembly 2, but also effectively avoids the risk of the diaphragm assembly 2 falling off the muscle position 119 during thermal expansion and contraction. Specifically, whether the diaphragm assembly 2 is in a contracted or expanded state, it can be tightly and uniformly supported by the muscle position 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 prolongs its service life, providing users with a more superior display experience.

[0071] When the muscle position 119 is a point muscle position 119, the projection of the muscle position 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 muscle position 119, but also can be flexibly adjusted according to the needs of the actual application scene, so as to meet different display effects and performance requirements.

[0072] The height of the muscle position 119 in the present application is greater than or equal to 0.3mm. The muscle position 119 in this height range can provide sufficient penetration space for light, facilitating the increase of light penetration space in the depth range of 0.5mm and above outside the display area 200 from the junction of the display area 200 and the non-display area 300. This enables light to penetrate more smoothly to the bottom of the membrane assembly 2, reducing the loss of light in the transmission process, thereby improving the overall brightness of the display device 100.

[0073] Further, the muscle position 119 is a transparent body, which not only retains the original supporting function of the muscle position 119, but also by using transparent materials, the light can further reduce the obstruction of the muscle position 119 when penetrating the gap between the membrane assembly 2 and the first supporting surface 1151, thereby improving the overall brightness and clarity of the display area 200. The application of transparent muscle position 119 provides a more transparent visual effect for the display device 100, enhancing the user's visual experience.

[0074] The material of the muscle position 119 is an elastic material. The elastic material has excellent flexibility and recovery, which can well adapt to the deformation of the membrane assembly 2 in the process of thermal expansion and cold contraction, thereby further reducing the friction and wear between the membrane assembly 2 and the muscle position 119. Not only that, the muscle position 119 with elasticity can also provide cushioning for the membrane assembly 2, prolonging the service life of the display device 100.

[0075] Specifically, the muscle position 119 can be manufactured by 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 muscle position 119, but also have good processing performance and cost-effectiveness, suitable for large-scale production applications.

[0076] The first supporting part 115 and the second supporting part 117 in the above embodiments not only bear the basic function of bearing and fixing, but also optimize the display effect of the display device 100.

[0077] Please continue to refer to Figure 3Specifically, the first support part 115 further has a first inclined surface 1153 facing the inner side of the accommodating space 111, i.e., the frame 11, which is connected with the first bearing surface 1151. The first inclined surface 1153 is gradually inclined from the first bearing surface 1151 to the direction close to the inner side of the accommodating space 111, i.e., the frame 11, which is ingeniously designed to surround the upper part or the periphery of the light-emitting unit and / or the light guide plate and extend outward. This design not only avoids the problem of light shielding, but also realizes the dual functions of light guiding and light leakage prevention through the inclined structure, significantly increases the effective area of light, thereby improving the utilization rate of light and making the brightness distribution of the display device 100 more uniform, and improving the visual experience of the user.

[0078] Please refer to Figure 6 , Figure 6 The fourth structural schematic diagram of the frame provided by the embodiment of the present application is shown. The first inclined surface 1153 is at least partially arranged in the non-display area 300 to optimize the light conduction path in the non-display area 300.

[0079] The diaphragm assembly 2 is located in the inner side of the accommodating space 111, i.e., the frame 11, and overlaps the upper part of the first bearing surface 1151. This design ensures the stability and position accuracy of the diaphragm assembly 2 and provides reliable support for the display device 100.

[0080] Further, the embodiment of the present application increases the light inlet space in the depth range of more than 0.5 mm on the outer side of the display area 200 below the diaphragm assembly 2, thereby improving the overall brightness of the display device 100.

[0081] The gap between the first inclined surface 1153 and the diaphragm assembly 2 in the embodiment of the present application is set to be greater than 0.3 mm, further reducing light loss and improving display brightness.

[0082] Please continue to refer to Figures 6 to 8 , Figure 7 The fifth structural schematic diagram of the frame provided by the embodiment of the present application is shown. Figure 8 The sixth structural schematic diagram of the frame provided by the embodiment of the present application is shown. Regarding the specific shape of the first inclined surface 1153, the embodiment of the present application provides two optional schemes: a curved surface (such as Figure 6 and Figure 7 ) or a folded surface (such as Figure 8 ).

[0083] Please continue to refer to Figure 3The second support portion 117 also has a second inclined surface 1172 facing the inner side of the frame 11, i.e., the accommodation space 111. The second inclined surface 1172 is connected with the second bearing surface 1171 and is inclined away from the accommodation space 111, i.e., the inner side of the frame 11. The second inclined surface 1172 provides smoother and more convenient guidance during installation of the membrane assembly 2.

[0084] Further, please refer to Figure 9 , Figure 9 The seventh structural diagram of the frame provided by the embodiment of the present application is shown. The second support portion 117 includes a sub-connection portion 1173 and a sub-support portion 1174. The sub-connection portion 1173 is connected with the first support portion 115 and extends along the thickness direction of the frame 11. The sub-support portion 1174 is connected with 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 bearing surface 1171, and the side of the sub-support portion 1174 close to the inner side of the frame 11, i.e., the accommodation space 111, is the second inclined surface 1172.

[0085] The sub-connection portion 1173 is closely connected with the first bearing surface 1151 of the first support portion 115. This connection mode ensures the stability between the two, thereby ensuring the stability of the frame 11 under various conditions.

[0086] In the prior art, the frame 11 is often designed to extend partially or entirely to the effective display area 200 domain (i.e., the junction of the BM area and the non-BM area) of the display panel, to fix and support the internal structure such as the membrane assembly 2. However, this design causes the frame 11 to block the backlight, which is prone to form a dark shadow on the display picture, affecting the visual quality.

[0087] To solve the above problem, the fixed frame 1 further includes a reflection layer. The reflection layer is ingeniously arranged on the inner surface of the frame 11, which is located close to the edge of the display area 200 domain, and can make full use of the space advantage of the frame 11 to reflect the originally blocked light to the edge of the display area 200 or the membrane assembly 2.

[0088] In some cases, please refer to Figure 10 , Figure 10 The eighth structural diagram of the frame provided by the embodiment of the present application is shown. The fixed frame 1 further includes a first reflection layer 13 arranged 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 reflection layer 13 further improves the utilization efficiency of the light, which can reflect the light to the edge of the display area 200 domain, avoiding the occurrence of the dark shadow problem.

[0089] In terms of material selection, the first reflective layer 13 can be an ink layer, a plastic layer, or an aluminum layer, etc.

[0090] When the first reflective layer 13 is an ink layer, the ink layer has the advantages of low cost and simple processing.

[0091] Please refer to Figure 11 , Figure 11 The ninth structural schematic diagram of the frame provided by the embodiments of the present application is shown. 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 requirements to achieve the best optical effect.

[0092] 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 scheme and a double material co-extrusion molding scheme.

[0093] In addition, the first reflective layer 13 can also include a grating structure and / or a metasurface structure.

[0094] In other cases, please refer to Figure 12 , Figure 12 The second structural schematic diagram of the fixing frame provided by the embodiments of the present application is shown. The fixing frame 1 also includes a second reflective layer 15, which is arranged on the second inclined surface 1172. This second reflective layer 15 can reflect light, which can effectively reflect the light that may be directly absorbed or blocked by the frame 11, and guide these light back into the diaphragm assembly 2.

[0095] The material selection of the second reflective layer 15 is also flexible and diverse, which can be an ink layer, a plastic layer, or an aluminum layer.

[0096] In view of the material irregularities or thermal expansion phenomena that the diaphragm assembly 2 may encounter, the frame 11 in the embodiments of the present application is ingeniously provided with a relief hole on the second support part 117. The axial direction of the relief hole is perpendicular to the thickness direction of the frame 11, which provides a sufficient tolerance space for the diaphragm assembly 2 to adapt to its possible outward extension or slight deformation under certain conditions.

[0097] Further, the relief hole is arranged on the sub-support part 1174 to avoid interference with the diaphragm assembly 2 or other parts of the frame 11. The axial direction of the relief hole is perpendicular to the thickness direction of the frame 11 to ensure that the filler 16 is not hindered during installation.

[0098] 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 the order from top to bottom. However, due to the possible local irregularities of the optical film assembly 2, 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.

[0099] Therefore, please refer to Figure 13 , Figure 13 The third structure diagram of the fixing frame provided by the embodiment of the present application. In the fixing frame 1 provided by the embodiment of the present application, the second support part 117 is provided with a notch 1175, and the fixing frame 1 further comprises a filling piece 16, which is arranged at the notch 1175, and the filling piece 16 is provided with a relief hole, the axial direction of which is perpendicular to the thickness direction of the frame 11.

[0100] The 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 film assembly 2, so as to ensure that the film assembly 2 can be smoothly and accurately stacked from top to bottom into the frame 11, while avoiding interference with the irregular area. After the film 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 the filling piece 16. The shape and size of the filling piece 16 correspond to the notch 1175 of the frame 11. During the filling process, the filling piece 16 can be accurately placed in the notch 1175, and it is tightly connected with the frame 11 by using appropriate fixing methods (such as adhesion, buckling, etc.).

[0101] Please refer to Figure 14 , Figure 14 The structure diagram of the filling piece provided by the embodiment of the present application. The filling piece 16 comprises a first filling part 161 and a second filling part 162 connected with each other, the first filling part 161 extends along the thickness direction of the frame 11, the second filling part 162 extends along the direction perpendicular to the thickness direction of the frame 11, the first filling part 161 is connected with the first support part 115, and the second filling part 162 is arranged opposite to the first supporting surface 1151.

[0102] The first filling part 161 extends along the thickness direction of the frame 11, and its main function is to serve as the main connecting structure between the filling piece 16 and the frame 11. The second filling part 162 extends along the direction perpendicular to the thickness direction of the frame 11, and its design purpose is to provide additional support and positioning function for the film assembly 2.

[0103] In order to further improve the reflection efficiency, please refer to Figure 14 and Figure 15 , Figure 14 The structure diagram of the filling piece provided by the embodiment of the present application,Figure 15 The fourth structure diagram of the fixing frame provided by the embodiment of the present application is shown. The fixing frame 1 further comprises a third reflecting layer 18, which is arranged on the side of the second filling part 162 close to the first supporting surface 1151. The third reflecting layer 18 can reflect the light transmitted from the film assembly 2, so as to improve the optical performance of the display module.

[0104] In some cases, the side of the second filling part 162 close to the first supporting surface 1151 is flush with the second inclined surface 1172, so as to ensure the smoothness of the contact surface between the filling part 16 and the film assembly 2, and avoid optical interference.

[0105] The side of the second filling part 162 away from the first supporting surface 1151 is flush with the second supporting surface 1171, which is beneficial to the connection reliability of the liquid crystal module 20.

[0106] Please refer to Figure 13 and Figure 16 , Figure 16 The fifth structure diagram of the fixing frame provided by the embodiment of the present application is shown. There are two specific cases for the arrangement of the filling part 16. The material of the filling part 16 can be plastic material (such as Figure 13 ) or sheet metal part (such as Figure 16 ).

[0107] In summary, the embodiment of the present application successfully solves the installation problem caused by the local irregularity of the optical film assembly 2 in the manufacturing process of the liquid crystal display module by filling the notch 1175 of the frame 11. The film assembly 2 of the embodiment of the present application is successfully 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.

[0108] Please refer to Figure 17 , Figure 17 The tenth structure diagram of the frame provided by the embodiment of the present application is shown. The fixing frame 1 further comprises a transparent block 1176, which is connected to the side of the second supporting part 117 close to the inner side of the containing 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, so as to increase the supporting area provided for the liquid crystal module 20, and ensure the stable fixation of the liquid crystal module 20 in the display device 100.

[0109] The composition material of the transparent block 1176 can be PET (Polyethyleneterephthalate, poly-terephthalate plastic) or polymethyl methacrylate (Polymethyl Methacrylate, PMMA, commonly known as organic glass).

[0110] In summary, the fixed frame 1 structure in the embodiment of the application significantly increases the area of the second bearing surface 1171 by adding the transparent block 1176, thereby providing a more stable bearing for the liquid crystal module 20 and effectively solving the problem of insufficient area of the second bearing surface 1171.

[0111] Please refer to Figure 18 , Figure 18 The structure of the backlight module provided in the embodiment of the application is shown in the figure. The embodiment of the application also provides a backlight module 10 for providing a light source with sufficient brightness and uniform distribution, so that the liquid crystal display screen can normally display images. The backlight module 10 has a display area 200 and a non-display area 300 surrounding the display area 200, which 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). Its main function is to prevent light from leaking out from the edge of the LCD. Since the backlight panel inside the LCD emits light, the user can see a clear picture. If the BM area is not designed properly or is too narrow, light leakage may occur at the edge of the screen, and even a halo may be formed in a pure black picture, which affects the display effect.

[0112] The backlight module 10 can include a direct type backlight module 10 and a side type backlight module 10. The direct type backlight mode usually refers to using multiple LED lamp beads as light sources, and the lamp beads are directly arranged on the back of the liquid crystal panel. The direct type backlight can provide uniform and high-brightness backlight effect, and is suitable for large-size display devices 100. In the embodiment of the application, the direct type backlight module is described.

[0113] The backlight module 10 includes the fixed frame 1 and the diaphragm assembly 2 in the above embodiment. The diaphragm assembly 2 is arranged in the accommodating space 111 of the fixed frame 1, i.e., the inner side of the frame 11. The diaphragm assembly 2 is lapped in the groove 113, and the groove 113 provides additional space for expansion or contraction of the diaphragm assembly 2.

[0114] The film assembly 2 generally comprises one or more layers of film, which can have different functions such as polarization, filtering, protection, etc. The film assembly 2 comprises a lower diffusion sheet, a prism sheet, and an upper diffusion sheet arranged in sequence, which are tightly attached to each other to ensure effective transmission and regulation of light. Specifically, the lower diffusion sheet is precisely arranged on the first frame part (i.e., a specific part of the frame 11), which is mainly 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 brightness enhancement film (BEF), is placed on the lower diffusion sheet. When the light of the backlight source passes through the prism sheet, its unique prism structure can guide the light so that only when the light is incident at a specific angle, it can be effectively emitted by refraction. The rest of the light that does not meet the refraction condition will be reflected back to the light source by the edge of the prism and will be used again through the reflection sheet at the bottom of the light source. This process ensures efficient recycling of light in the backlight source, so that the light that would have been dispersed in all directions is effectively controlled within a narrower angle range (e.g., 70% of the light is controlled within a specific angle), thereby significantly enhancing the axial brightness. The upper diffusion sheet is arranged on the prism sheet, which not only takes charge of further atomizing the light emitted by the prism sheet to ensure uniform light transmission, but also plays an important role in protecting the prism sheet from external damage. Through the processing of the upper diffusion sheet, the display device 100 can provide a more uniform and soft surface light source, improving the overall visual effect.

[0115] Please refer to Figure 19 , Figure 19 The first structure schematic diagram of the display device provided by the embodiment of the present application is shown. 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 optimizes the functionality and structure on this basis to improve the overall performance and user experience of the display device 100.

[0116] The embodiment of the present application also provides a display device 100, which is an electronic device or component, and its core function is to convert electronic signals, digital signals or other forms of signals into visual information such as images, text, numbers, etc. that can be recognized by human eyes. The display device 100 can be a television, a computer monitor, a mobile phone screen, a vehicle-mounted display screen, etc.

[0117] The display device 100 comprises the backlight module 10 and the liquid crystal module 20. The liquid crystal module 20 is arranged opposite to the backlight module 10, and is connected to the frame 11. The liquid crystal module 20 is overlapped on the second supporting surface 1171 of the frame 11. The liquid crystal module 20 comprises a plurality of layers 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.

[0118] The fixing frame 1 in the backlight module 10 is generally a frame-shaped structure, which is used to support and fix other components such as the diaphragm assembly 2 and the liquid crystal module 20. The fixing frame 1 forms an accommodating space 111, and is provided with a groove 113 on the inner surface of the frame 11. The diaphragm assembly 2 can be arranged in the accommodating space 111 and in the groove 113, and the liquid crystal module 20 can be connected to the end surface of the frame 11. In other words, the liquid crystal module 20 and the diaphragm assembly 2 adopt a layered layout in this embodiment, and are not fixed in the same plane. Through the ingenious use of this layered design, sufficient fixing 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.

[0119] In order to enhance the connection stability and reliability between the liquid crystal module 20 and the frame 11, the display device 100 further comprises a first adhesive 30 arranged between the second supporting surface 1171 and the liquid crystal module 20, which is used to fix the liquid crystal module 20 to the frame 11. The liquid crystal module 20 is firmly fixed to the frame 11 by the adhesive force of the first adhesive 30. This fixing method is not only simple and easy to implement, but also can effectively prevent the liquid crystal module 20 from loosening or falling off during long-term use. The first adhesive 30 can be foam glue or AB glue.

[0120] Please refer to Figure 20 , Figure 20 The second structural diagram of the display device provided in the embodiment is shown. In order to further improve the stability and convenience of the fixation of the liquid crystal module 20, the display device 100 further comprises an auxiliary positioning assembly 40 connected to the backlight module 10 and the liquid crystal module 20, and corresponding to the first adhesive 30. The auxiliary positioning assembly 40 can be a magnet assembly or a buckle assembly to guide or temporarily fix the backlight module 10 and the liquid crystal module 20.

[0121] Specifically, the auxiliary positioning assembly 40 comprises 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 guide. 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.

[0122] The display device 100 further comprises a middle frame, the middle frame comprising a first frame portion, a second frame portion and a third frame portion, the first frame portion being arranged on the periphery of the fixing frame 1 and the back plate, the second frame portion and the third frame portion being connected with the first frame portion, the first frame portion extending along the thickness direction of the display device 100, the second frame portion and the third frame portion extending along the direction perpendicular to the thickness direction of the display device 100, the second frame portion being connected with the side of the liquid crystal module 20 away from the backlight module 10, and the third frame portion being connected with the side of the backlight module 10 away from the liquid crystal module 20. The first frame portion of the middle frame realizes the secondary fixing of the liquid crystal module 20. The third frame portion can be connected with the fixing frame 1 through a bolt.

[0123] Further, the display device 100 further comprises a third adhesive member arranged between the middle frame and the liquid crystal module 20, for fixing the middle frame on the liquid crystal module 20. The third adhesive member is similar to the first adhesive member, and details are not repeated here. Further, the third adhesive member can be arranged between the liquid crystal module 20 and the second frame portion to realize accurate fixing.

[0124] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0125] In the description of the present application, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features.

[0126] The fixing frame, the backlight module and the display device provided by the embodiments of the present application are described in detail. The principles and implementation manners of the present application are described by applying specific examples, and the above description of the embodiments is only used to help understand the present application. Meanwhile, for those skilled in the art, the specific implementation manners and application ranges can be changed according to the idea of the present application, and the above description of the present application should not be understood as a limitation.

Claims

1. A fixture, characterized in that The frame comprises a first support part having a first supporting surface for supporting the film sheet assembly and a second support part connected to the first supporting surface of the first support part. The frame further comprises a plurality of ribs arranged on the first supporting surface and protruding from the first supporting surface. The ribs are arranged at intervals.

2. The fixture of claim 1, wherein The cross-sectional area of the ribs gradually decreases in a direction from the first support part to the second support part.

3. The fixture of claim 1, wherein The ribs comprise point-shaped ribs or long strip-shaped ribs.

4. The fixture of claim 2, wherein, When the ribs are long strip-shaped ribs, the extending direction of the ribs is perpendicular to the edge of the first supporting surface close to the inner side of the frame.

5. The fixture of claim 3, wherein The extending length of the ribs is equal to the width of the first supporting surface in a direction perpendicular to the thickness of the frame.

6. The fixture of claim 5, wherein, The height of the ribs is greater than or equal to 0.3 mm.

7. The fixture of any one of claims 1 to 6, wherein, The ribs are transparent bodies.

8. The fixture of any one of claims 1 to 6, wherein, The material of the ribs is elastic material.

9. The fixture of any one of claims 1 to 6, wherein, The frame comprises a frame according to any one of claims 1 to 9.

10. A backlight module, characterized in that, The film sheet assembly is overlapped on the first supporting surface. The backlight module comprises a backlight module according to claim 10. The liquid crystal module is arranged opposite to the backlight module and is connected to the frame.

11. A display device, characterized by comprising: ​ ​ ​

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