Fixing frame, backlight module and display device

Abstract

The utility model provides a fixing frame, a backlight module and a display device, and the fixing frame comprises a frame which comprises a first supporting part and a second supporting part, and the first supporting part is provided with a first bearing surface; the second supporting part is connected to the first bearing face of the first supporting part, a groove is defined by the first supporting part and the second supporting part, and the side, away from the first supporting part, of the second supporting part is a second bearing face. The second supporting part is further provided with a second inclined face, the second inclined face faces the inner side of the frame, the second inclined face is connected with the second bearing face, and the second inclined face inclines in the direction away from the inner side of the frame from the second bearing face. And the second reflecting layer is arranged on the second inclined 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 rack, backlight module and display device. BACKGROUND

[0002] In the field of display technology and related fields, the fixing of liquid crystal modules and the stability of diaphragms are key factors to ensure display quality. Especially under the design trend of pursuing higher screen ratio and narrower Black Matrix (BM area), the fixing of liquid crystal modules and the stability of diaphragms are facing unprecedented challenges.

[0003] In a narrow-frame display device, due to space constraints, at least part of the structure of the fixed rack extends from the non-display area of the display panel to the display area to fix and support internal structures such as diaphragm assemblies. However, this design also brings a significant problem: the fixed rack itself will block part of the backlight, and if not handled properly, it is easy to form a dark shadow on the display picture, affecting the visual experience.

[0004] The dark shadow problem is caused by the blocking of light rays by the fixed rack after the action of the diaphragm assembly. When the light rays are emitted from the diaphragm assembly and try to pass through the liquid crystal module to form an image, once they come into contact with the fixed rack, part of the light rays will be absorbed instead of continuing to transmit, resulting in a significant decrease in light intensity at the edge or a specific location of the display area, and thus forming a dark shadow area. This dark shadow not only reduces the overall brightness of the picture, but also can cause color distortion, seriously affecting the user's viewing experience. SUMMARY

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

[0006] The embodiments of the present application provide a fixed rack, which comprises:

[0007] A frame, the frame comprising a first support part and a second support part, the first support part having a first bearing surface; the second support part being connected to the first bearing surface of the first support part, the first support part and the second support part forming a groove, the second support part being a second bearing surface away from the first support part;

[0008] The second support part also has a second inclined surface, the second inclined surface facing the inner side of the frame, the second inclined surface being connected to the second bearing surface, the second inclined surface being inclined away from the inner side of the frame from the second bearing surface;

[0009] A second reflective layer is provided on the second inclined surface.

[0010] In some embodiments, the second reflective layer is an ink layer or a plastic layer.

[0011] In some embodiments, the second support portion is provided with a relief hole, and an axial direction of the relief hole is perpendicular to a thickness direction of the frame.

[0012] In some embodiments, the second support portion comprises a sub-connection portion and a sub-support portion, the sub-connection portion is connected with the first support portion, the sub-connection portion extends along the thickness direction of the frame, and the sub-support portion is connected with a side of the sub-connection portion away from the first support portion; a side of the sub-support portion away from the sub-connection portion is the second bearing surface, a side of the sub-support portion close to an inner side of the frame is the second inclined surface, and the relief hole is arranged on the sub-support portion.

[0013] In some embodiments, the second support portion is provided with a gap, and the fixing frame further comprises a filling piece arranged at the gap, and the filling piece is provided with a relief hole, and an axial direction of the relief hole is perpendicular to a thickness direction of the frame.

[0014] In some embodiments, the filling piece comprises a first filling portion and a second filling portion connected with each other, the first filling portion extends along the thickness direction of the frame, the second filling portion extends along a direction perpendicular to the thickness direction of the frame, the first filling portion is connected with the first support portion, and the second filling portion is arranged opposite to the first bearing surface.

[0015] In some embodiments, the fixing frame further comprises a third reflective layer arranged on a side of the second filling portion close to the first bearing surface.

[0016] In some embodiments, a side of the second filling portion close to the first bearing surface is flush with the second inclined surface, and / or a side of the second filling portion away from the first bearing surface is flush with the second bearing surface.

[0017] Embodiments of the present application further provide a backlight module, comprising:

[0018] a fixing frame, which is the fixing frame described above;

[0019] a diaphragm assembly, which is lapped on the first bearing surface.

[0020] Embodiments of the present application further provide a display device, comprising:

[0021] a backlight module, which is the backlight module described above;

[0022] A liquid crystal module is arranged opposite to the backlight module, and the liquid crystal module is overlapped on the second supporting surface of the frame.

[0023] In some embodiments, the second supporting part is provided with a relief hole, and a length direction of the relief hole is perpendicular to a thickness direction of the frame; and the diaphragm assembly can be partially arranged in the relief hole.

[0024] In the fixing frame, the backlight module and the display device provided by the 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 for supporting the diaphragm assembly, and the second supporting part is used for supporting the liquid crystal module. The liquid crystal module and the diaphragm assembly adopt a layered layout mode in the embodiments of the present application, which can provide sufficient fixing area for the liquid crystal module under the premise of ensuring that the diaphragm expansion / contraction space is not affected. The second supporting part further comprises a second inclined surface which is inclined towards the inner side of the frame and is provided with a second reflection layer. The function of the second reflection layer is to effectively guide the light, so that the light is returned to the diaphragm assembly after reflection, and then acts on the liquid crystal module again through the regulation of the diaphragm assembly, which significantly improves the utilization efficiency of the light and fundamentally reduces the occurrence of the shadow phenomenon, thereby ensuring the imaging effect of the display device. BRIEF DESCRIPTION OF DRAWINGS

[0025] 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.

[0026] Figure 1 It is a structural schematic diagram of the display device in the prior art.

[0027] Figure 2 It is the first structural schematic diagram of the fixing frame provided by the embodiments of the present application.

[0028] Figure 3 It is the first structural schematic diagram of the frame provided by the embodiments of the present application.

[0029] Figure 4 It is the second structural schematic diagram of the frame provided by the embodiments of the present application.

[0030] Figure 5 It is the third structural schematic diagram of the frame provided by the embodiments of the present application.

[0031] Figure 6 It is the fourth structural schematic diagram of the frame provided by the embodiments of the present application.

[0032] Figure 7The fifth structural schematic diagram of the frame provided by the embodiment of the present application is shown.

[0033] Figure 8 The sixth structural schematic diagram of the frame provided by the embodiment of the present application is shown.

[0034] Figure 9 The seventh structural schematic diagram of the frame provided by the embodiment of the present application is shown.

[0035] Figure 10 The eighth structural schematic diagram of the frame provided by the embodiment of the present application is shown.

[0036] Figure 11 The ninth structural schematic diagram of the frame provided by the embodiment of the present application is shown.

[0037] Figure 12 The second structural schematic diagram of the fixing frame provided by the embodiment of the present application is shown.

[0038] Figure 13 The third structural schematic diagram of the fixing frame provided by the embodiment of the present application is shown.

[0039] Figure 14 The structural schematic diagram of the filling piece provided by the embodiment of the present application is shown.

[0040] Figure 15 The fourth structural schematic diagram of the fixing frame provided by the embodiment of the present application is shown.

[0041] Figure 16 The fifth structural schematic diagram of the fixing frame provided by the embodiment of the present application is shown.

[0042] Figure 17 The tenth structural schematic diagram of the frame provided by the embodiment of the present application is shown.

[0043] Figure 18 The structural schematic diagram of the backlight module provided by the embodiment of the present application is shown.

[0044] Figure 19 The first structural schematic diagram of the display device provided by the embodiment of the present application is shown.

[0045] Figure 20 The second structural schematic diagram of the display device provided by the embodiment of the present application is shown. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to 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 the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0047] Referring to Figure 1 , Figure 1 FIG. 1 is a structural schematic diagram of a display device in the prior art.

[0048] 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. Especially in the design trend of the display device 400 pursuing higher screen ratio and narrower frame (BM area), the fixing of the liquid crystal assembly 17 and the stability of the film sheet 14 are facing unprecedented challenges.

[0049] In order to ensure that the film sheet 14 will 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 it is designed. This space requirement is usually met by adjusting the size of the BM (Black Matrix) area of the liquid crystal assembly 17.

[0050] The adhesive such as double-sided tape 19 is arranged between the liquid crystal assembly 17 and the glue frame 12 to prevent the liquid crystal assembly 17 from falling off during long-term use or under the action of external force.

[0051] As the frame design of the display device 400 becomes increasingly narrow, the size of the BM area which is also located in the non-display area is also correspondingly greatly reduced. The BM area can avoid light leakage at the edge of the screen, effectively prevent the screen edge from producing halo or glare, and ensure the purity and clarity of the display picture.

[0052] 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 film sheet expansion / contraction space is not affected. The specific description is made below in combination with the drawings.

[0053] Referring to Figure 2 , Figure 2 FIG. 1 is a structural schematic diagram of a display device in the prior art.

[0054] 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.

[0055] The frame 11 surrounds to form an accommodation space 111, which is used for mounting and fixing the internal components of the display device 100, such as the film sheet assembly 2.

[0056] The inner surface of the frame 11 is provided with a groove 113 which is in communication with the inner side of the accommodating space 111, i.e. the fixing frame. The diaphragm assembly 2 can be arranged in the inner side of the accommodating space 111, i.e. the fixing frame, and lapped in the groove 113 which is used for fixing the diaphragm assembly 2, i.e. providing 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.

[0057] In other words, the liquid crystal module 20 and the diaphragm assembly 2 adopt a layered layout in the embodiment, and are not fixed in the same plane. Through the ingenious use of the layered design, sufficient fixing area is provided for the liquid crystal module 20 under the premise of ensuring that the diaphragm expansion / contraction space is not affected, thereby significantly improving the display quality and stability of the overall display device 100.

[0058] Please refer to Figure 3 , Figure 3 The first structure schematic diagram of the frame provided in the embodiment of the application is shown. The frame 11 includes a first support part 115 and a second support part 117, and the first support part 115 has a first bearing surface 1151. On the frame 11, the first bearing surface 1151 refers to a plane or surface used for supporting and fixing the diaphragm assembly 2. The first bearing surface 1151 has a specific shape and size to ensure that the diaphragm assembly 2 can be correctly installed and positioned, i.e. the first bearing surface 1151 can be used to bear the diaphragm assembly 2.

[0059] The second support part 117 is connected to the first bearing 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 support part 117 forms a second bearing surface 1171 on the side away from the first support part 115. On the frame 11, the second bearing surface 1171 refers to a plane or surface used for supporting and fixing the liquid crystal module 20. Similar to the first bearing surface 1151, the second bearing 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 bearing surface 1171 can be used to bear the liquid crystal module 20.

[0060] 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. Under the premise of not affecting the diaphragm expansion / contraction space, 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.

[0061] The area of the connection region of the second support part 117 and the first support part 115 is a first area, and the area of the second bearing surface 1171 is a second area. The first area is smaller than the second area.

[0062] Since the first support part 115 mainly undertakes the task of supporting the membrane 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 liquid crystal module 20, a key component, 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, so 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.

[0063] 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 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 internal space utilization of the display device 100. In the context of narrow BM zone 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 bearing capacity and stability of the second support part 117, but also makes the frame 11 easier to demold during the preparation process. This reduces production costs and improves production efficiency.

[0064] 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 cost, 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.

[0065] Please refer to Figure 4 and Figure 5 , Figure 4 the second structure diagram of the frame provided by the embodiments of the present application, Figure 5A third structural schematic diagram of the frame provided by the embodiment of the present application.

[0066] When the membrane assembly 2 is installed on the frame 11, if the overlap position of the membrane assembly 2 is just 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), the problem of dull visual effect at the junction may be caused.

[0067] To solve the above technical problem, the fixing frame 1 in the embodiment of the present application further comprises a rib position 119, which is arranged on and protrudes from the first supporting surface 1151. The main function of the rib position 119 is to moderately lift the membrane assembly 2, so as to form a gap with a certain height between the membrane assembly 2 and the first supporting surface 1151. The introduction of the 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 improves the brightness performance of the display area 200 adjacent to the non-display area 300, effectively alleviates the visual dull phenomenon caused by the obstruction of light transmission, and overall improves the display effect.

[0068] Please continue to refer to Figure 3 , specifically, the first supporting surface 115 further has a first inclined surface 1153, which is towards the inner side of the accommodating space 111, i.e. the inner side of the fixing frame, and is connected with the first supporting surface 1151. The first inclined surface 1153 is gradually inclined from the first supporting surface 1151 towards the inner side of the accommodating space 111, i.e. the inner side of the fixing frame, and is designed to be cleverly surrounded around the light emitting unit and / or the light guide plate and extended 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 improves the utilization rate of light, and makes the brightness distribution of the display device 100 more uniform, and improves the visual experience of the user.

[0069] Please refer to Figure 6 , Figure 6 A fourth structural schematic diagram of the frame provided by the embodiment of the present application. The first inclined surface 1153 is at least partially arranged in the non-display area 300 to optimize the conduction path of light in the non-display area 300.

[0070] The diaphragm assembly 2 is located in the inner side of the accommodating space 111, i.e., the fixed frame, and overlaps the upper side of 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 is spaced apart from the first inclined surface 1153, 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 conduction path of light in the non-display area 300.

[0071] 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. This design allows light to penetrate more smoothly below the diaphragm assembly 2 and illuminate the diaphragm assembly 2, effectively reducing light loss during transmission, thereby improving the overall brightness of the display device 100.

[0072] 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 in the embodiment of the present application is set to be greater than 0.3 mm. This gap also helps light to penetrate more smoothly below the diaphragm assembly 2, further reducing light loss and improving display brightness.

[0073] 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, Figure 8 The sixth structural schematic diagram of the frame provided by 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 schemes: a curved surface (such as Figure 6 and Figure 7 ) or a folded surface (such as Figure 8 ). When the first inclined surface 1153 is a curved surface, it is preferably a smooth circular arc surface, which helps to evenly distribute light and reduce glare and reflection, thereby further improving the display effect.

[0074] Please continue to refer to Figure 3 , the second support part 117 also has a second inclined surface 1172, which faces the inner side of the accommodating space 111, i.e., the fixed frame. The second inclined surface 1172 is connected with the second supporting surface 1171, and the second inclined surface 1172 is inclined away from the inner side of the accommodating space 111, i.e., the fixed frame, from the second supporting surface 1171. The second inclined surface 1172 provides smoother and more convenient guidance during 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 along the second supporting surface 1171 until it is completely placed on the first supporting surface 1151. This process not only reduces friction and resistance during installation, but also improves the accuracy and efficiency of installation.

[0075] Further, please refer to Figure 9 , Figure 9 The seventh structural schematic diagram of the framework provided by the embodiments of the present application. The second support part 117 includes a sub-connection part 1173 and a sub-support part 1174. The sub-connection part 1173 is connected with the first support part 115 and extends along the thickness direction of the framework 11. The sub-support part 1174 is connected with the side of the sub-connection part 1173 away from the first support part 115. The side of the sub-support part 1174 away from the sub-connection part 1173 is the second bearing surface 1171, and the side of the sub-support part 1174 close to the inner side of the containing space 111, i.e., the inner side of the fixing frame, is the second inclined surface 1172.

[0076] The sub-connection part 1173 is closely connected with the first bearing surface 1151 of the first support part 115. This connection mode ensures the stability between the two, thereby ensuring the stability of the framework 11 under various conditions. The area of the connection region of the sub-connection part 1173 with the first support part 115 is the first area, which is relatively small to save materials and avoid unnecessary space occupation. At the same time, the sub-connection part 1173 extends along the thickness direction of the framework 11. This design not only enhances the structural strength of the framework 11, but also effectively transmits and disperses the force from different directions, further improving the tolerance of the framework 11, thereby improving the overall tolerance of the framework 11 and prolonging the service life.

[0077] The sub-support part 1174 is connected with the side of the sub-connection part 1173 away from the first support part 115, forming the main part of the second support part 117. The side of the sub-support part 1174 away from the sub-connection part 1173 has a flat and stable second bearing surface 1171, which can be used to support structures such as the liquid crystal module 20. The design of the bearing surface not only meets the high requirements of the liquid crystal module 20 on flatness and stability, but also ensures its stability and reliability during long-term use.

[0078] The connection region of the sub-connection part 1173 with the first support part 115 (i.e., the first area mentioned above) and the connection region of the sub-connection part 1173 with the sub-support part 1174 (the third area) are all designed to be much smaller than the second bearing area (the second area). This design not only saves material cost, but also avoids unnecessary space occupation, making the structure of the entire framework 11 more compact and efficient.

[0079] In addition, the thickness of the sub-connection portion 1173 in 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 shrinkage or expansion of the diaphragm assembly 2 in the thickness direction, and also avoids assembly problems caused by changes in the size of the diaphragm assembly 2, thereby ensuring the stability and reliability of the diaphragm assembly 2 during long-term use.

[0080] In the prior art, the frame 11 is often designed to partially or entirely extend to the effective display area 200 of the display panel (i.e., the junction of the BM area and the non-BM area) to fix and support internal structures such as the diaphragm assembly 2. However, this design causes the frame 11 to block the backlight, which easily forms a dark shadow on the display image, affecting the visual quality. The essence of the dark shadow problem is that the presence of the frame 11 causes part of the light to be absorbed rather than transmitted when the light is emitted from the backlight module 10 and attempts to pass through the display panel to form an image, thereby forming a phenomenon of insufficient light at the edge of the display area 200 or at a specific location, i.e., a dark shadow. The dark shadow not only reduces the overall brightness of the image, but also can cause color distortion, seriously damaging the user's viewing experience.

[0081] To solve the above problems, the present application provides a fixing frame 1 which includes a reflective layer. The reflective layer is ingeniously arranged on the inner surface of the frame 11, and is located adjacent to the edge of the display area 200, which can make full use of the space advantage of the frame 11 to reflect the light that is otherwise blocked into the display area 200 or the diaphragm 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 of the display area 200 more uniform and the brightness of the image more consistent.

[0082] By introducing the reflective layer, the present application not only solves the problem of dark shadow, but also further improves the optical performance of the display device 100. The design of the reflective layer can be flexibly adjusted according to specific application scenarios, such as adjusting the material, thickness, shape, etc. of the reflective layer to optimize the light reflection effect and achieve the best optical performance.

[0083] In some cases, see Figure 10 , Figure 10 The eighth structure diagram of the frame provided by the present application is shown. The fixing frame 1 further includes a first reflective layer 13 arranged on the first inclined surface 1153. The first inclined surface 1153 itself helps to optimize the light transmission path, and the addition of the first reflective layer 13 further improves the utilization efficiency of light, which can reflect the light to the edge of the display area 200, avoiding the occurrence of dark shadow problem.

[0084] 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 can achieve the reflection function through other technical means. In terms of material selection, the first reflective layer 13 can be an ink layer, a plastic layer, or an aluminum layer, each of which has its own unique advantages.

[0085] When the first reflective layer 13 is an ink layer, the ink layer has the advantages of low cost and simple processing, and by adjusting the ink formula, the light reflectivity can be accurately controlled. The ink layer material can be reactive ink, water-based ink, ultraviolet curing ink, thermal transfer ink, metal ink, fluorescent ink, etc.

[0086] Specifically, the high-precision printing capability of silk-screen printing or pad printing can uniformly and firmly attach the ink containing high reflectivity characteristics 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 penetration or reflection, thereby effectively reducing the shadow phenomenon caused by the frame 11 blocking.

[0087] Compared with direct injection molding or aluminum drawing process, the silk-screen printing / pad printing scheme of the present application has higher flexibility and accuracy. The high-reflectivity ink is applied to the first inclined surface 1153 without the need to change the material or process of the entire fixing frame 1. This not only reduces production costs, but also improves production efficiency, making the preparation of the fixing frame 1 more economical and efficient.

[0088] Please refer to Figure 11 , Figure 11 The ninth structure schematic diagram of the frame provided by the embodiment of the present application is provided. When the first reflective layer 13 is a plastic layer, the plastic layer has higher flexibility and plasticity, and can adjust the thickness, shape, and surface texture of the reflective layer according to specific needs to achieve the best optical effect. The material of the plastic layer can be polycarbonate (PC), polyethylene terephthalate (PET), polyvinyl chloride (PVC), or polyacrylate (PMMA), etc. high-reflectivity plastic material, and can also be a light-reflecting microsphere composite material or the like.

[0089] 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.

[0090] The secondary injection molding scheme specifically refers to splitting the fixed frame 1 into two independent parts and forming them through two injection molding processes respectively. In the first injection molding process, ordinary materials are used as the injection molding raw materials, and the basic structure of the frame 11 is formed, such as the first support part 115 and the second support part 117, through standard injection molding process, to ensure that the product can meet the basic stress requirements and provide stable support for subsequent assembly and use. In the second injection molding process, special materials with high reflectivity are used. The key to this step is to accurately inject high-reflectivity materials into the parts of the frame 11 that are directly related to optical reflection, thereby significantly improving the reflectivity of this area to meet the high requirements of the product on optical performance.

[0091] The double-material co-extrusion molding scheme specifically refers to using an extrusion process to realize the composite molding of the fixed frame 1 through double-material co-extrusion. The first material, with excellent mechanical properties and cost-effectiveness, is used to form the basic stress part 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, meeting the basic needs of the product in daily use. The second material has unique optical properties and reflection characteristics and is specially used to form the first reflection layer 13. By accurately controlling the extrusion process parameters, this high-reflectivity material is uniformly distributed in the specified area of the frame 11 (on the first inclined surface 1153), thereby significantly improving the light reflection effect of this area and meeting the high requirements of the product on optical performance. Through the double-material co-extrusion molding scheme, not only is the dual optimization of the structure and performance of the frame 11 realized, but also the production efficiency and material utilization are improved.

[0092] In addition, the first reflection layer 13 can also include a grating structure and / or a metasurface structure. As a periodic structure optical element, the grating structure can realize diffraction and interference of light, accurately control the propagation direction and intensity of light. The metasurface structure is composed of sub-wavelength structure units and has strong light manipulation ability, which can flexibly control the phase, polarization and amplitude of light. Integrating the grating structure and / or metasurface structure into the first reflection layer 13 not only significantly improves the light reflectivity, but also realizes accurate 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 picture.

[0093] In other cases, see Figure 12 , Figure 12The second structure of the fixing frame provided by the embodiment of the present application is shown in the figure. The fixing frame 1 further comprises a second reflective layer 15, which is arranged on the second inclined surface 1172. The second reflective layer 15 can reflect light, effectively reflect the light that may be directly absorbed or blocked by the frame 11, and guide the light to return to the membrane assembly 2. After being regulated again by the membrane assembly 2, the reflected light 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 utilization efficiency of light, but also fundamentally reduces the shadow phenomenon caused by the light being blocked by the frame 11, ensuring the uniform distribution of light on the edge area and the whole of the display device 100, thereby realizing higher quality imaging effect, including higher brightness uniformity and more accurate color performance, and bringing users a more outstanding visual experience.

[0094] 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, each of which has its own unique advantages. The ink layer is known for its low cost and simple processing, and through careful adjustment of the ink formula, the reflectivity of light can be accurately controlled. The ink layer material can cover various types such as reactive ink, water-based ink, ultraviolet curing ink, thermal transfer ink, metal ink and fluorescent ink. The plastic layer is superior in flexibility and plasticity, and can adjust the thickness, shape and surface texture of the reflective layer 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 reflection performance and stability.

[0095] In view of the material irregularity or thermal expansion phenomenon that the membrane assembly 2 may encounter, the frame 11 in the embodiment 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 membrane assembly 2 to adapt to its possible outward extension or slight deformation under certain conditions. This design not only ensures the structural stability and functional integrity of the membrane assembly 2 when it slightly expands or is irregular in shape, but also effectively avoids the direct contact and potential friction between the membrane assembly 2 and the frame 11, thereby preventing the degradation of optical performance or structural damage that may be caused thereby.

[0096] Further, the relief hole is arranged on the sub-support part 1174 to avoid interference with the membrane 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. The design of the relief hole can be adjusted according to the shape and size of the membrane assembly 2 to ensure that the gap between the relief hole and the membrane assembly 2 is moderate, neither interfering nor affecting the supporting effect of the filler 16.

[0097] 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.

[0098] Therefore, referring 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, and the axial direction of the relief hole is perpendicular to the thickness direction of the frame 11.

[0099] 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.). In addition, in order to further optimize the design of the filling piece 16, the embodiment of the present application further provides a relief hole on the filling piece 16. The axial direction of the relief hole is perpendicular to the thickness direction of the frame 11, which is designed to provide additional space to further avoid interference between the film assembly 2 and the filling piece 16, and to improve the optical performance of the display module.

[0100] 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.

[0101] The first filling part 161 extends along the thickness direction of the frame 11, and mainly functions as a main connecting structure between the filling piece 16 and the frame 11. In order to realize stable connection, the first filling part 161 is designed to be connected with the first supporting part 115 on the frame 11, and the connection can be realized by, but not limited to, adhesion, buckling, screwing and other fastening modes, so as to ensure that the filling piece 16 can be firmly fixed on the frame 11.

[0102] The second filling part 162 extends along the direction perpendicular to the thickness direction of the frame 11, and is designed to provide additional support and positioning function for the diaphragm assembly 2. Therefore, the second filling part 162 is arranged opposite to the first supporting surface 1151 below the diaphragm assembly 2, so as to provide a contraction or expansion space for the diaphragm assembly 2, avoid interference between the diaphragm assembly 2 and the filling piece 16, and thus ensure the optical performance of the display module.

[0103] In order to further improve the reflection efficiency, please refer to Figure 14 and Figure 15 , Figure 14 the structure schematic diagram of the filling piece provided by the embodiment of the present application, Figure 15 the fourth structure schematic diagram of the fixing frame provided by the embodiment of the present application. 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 diaphragm assembly 2, so as to improve the optical performance of the display module. The filling piece 16 on the side with the third reflecting layer 18 can be processed according to the second inclined surface 1172 of the frame 11. The profiling design can ensure the consistency of the reflection angle, so as to avoid visual effect difference and 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 piece 16 and the diaphragm 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. Since the second supporting surface 1171 is configured to support the liquid crystal module 20, the second filling part 162 flush with the second supporting surface 1171 can also 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.

[0106] There are two specific cases for the setting of the filling piece 16. The filling piece 16 includes two kinds of filling pieces 16, which are different in specific structure and material.

[0107] Please continue to refer to Figure 13The filler 16 can be made of plastic material, and the material of the filler 16 can be the same as that of the frame 11. 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 formed by various molding methods such as injection molding, extrusion molding, aluminum drawing, die casting, etc. to meet different production requirements and cost requirements. The filler 16 on the side with the third reflective layer 18, that is, the second filling part 162 relative to the first supporting surface 1151, can be profiled according to the second inclined surface 1172 of the frame 11. This profiled design can ensure the consistency of the reflection angle, thereby avoiding visual effect differences and improving the optical performance of the display module.

[0108] Referring to Figure 16 , Figure 16 The fifth structure diagram of the fixing frame provided by the embodiment of the present application is shown. The filler 16 can be a sheet metal part. Due to the limitation of its material and forming process, it can not be profiled, resulting in inconsistent reflection angles and visual effect differences. 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 part 162 of the filler 16. The reflective sheet can improve the reflectivity, so that the reflection effect at the filler 16 is consistent with the rest of the positions, thereby avoiding visual effect differences and improving the optical performance of the display module.

[0109] In summary, the embodiment of the present application successfully solves the installation problem caused by the local irregularity of the optical film sheet assembly 2 in the manufacturing process of the liquid crystal display module by filling the notch 1175 of the frame 11. Both schemes of the embodiment of the present application can ensure that the film sheet assembly 2 is smoothly and accurately installed on the frame 11, while avoiding interference with the local irregularity of the film sheet assembly 2 and restoring the integrity of the frame 11. In addition, through the profiled 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.

[0110] Referring 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 includes a transparent block 1176 connected to the side of the second supporting part 117 close to the accommodation space 111, that is, the inner side of the fixing frame, and extending 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.

[0111] The composition material of the transparent block 1176 can be PET (Polyethyleneterephthalate) or polymethyl methacrylate (PMMA, commonly known as organic glass). The PET plastic has good optical performance and weather resistance, and the amorphous PET plastic has excellent optical transparency, which can ensure smooth transmission of light. PMMA is the best high-molecular transparent material at present, and its visible light transmittance is as high as 92%, far higher than ordinary glass, which can further improve the optical performance of the display device 100.

[0112] In summary, the fixed frame 1 structure in the embodiment of the 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.

[0113] Please refer to Figure 18 , Figure 18 The structure of the backlight module provided in the embodiment of the application is shown. The embodiment of the application also provides a backlight module 10 for providing sufficient brightness and uniformly distributed light source to enable the liquid crystal display screen to 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 by a specific process and technology. 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 of the LCD edge. 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 noticeable halo may be formed in a pure black picture, affecting the display effect.

[0114] 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. The embodiment of the application is described by taking the direct type backlight module as an example.

[0115] 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 fixed frame. 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.

[0116] The film assembly 2 generally comprises one or more layers of films, which can have different functions such as polarization, filtering, protection, etc. The film assembly 2 comprises a lower diffuser, a prism sheet, and an upper diffuser arranged in sequence, which are tightly attached to each other to ensure effective transmission and regulation of light. Specifically, the lower diffuser 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 diffuser. 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 the 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 narrow angle range (e.g., 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 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 diffuser, the display device 100 can provide a more uniform and soft surface light source, improving the overall visual effect.

[0117] As in the above embodiments, the frame 11 comprises a first support part 115 having a first supporting surface 1151 and a second support part 117 connected to the first supporting surface 1151 of the first support part 115.

[0118] The first support part 115 further has a first inclined surface 1153 facing the inner side of the accommodating space 111, i.e., the inner side of the fixing frame. The first inclined surface 1153 is connected to the first supporting surface 1151 and is inclined from the first supporting surface 1151 towards the inner side of the accommodating space 111, i.e., the inner side of the fixing frame. In some embodiments, the first inclined surface 1153 is at least partially arranged at the junction of the display area 200 and the non-display area 300.

[0119] The diaphragm assembly 2 is located in the inner side of the accommodating space 111, i.e., the fixed frame, and is overlapped on the upper side of the first supporting surface 1151, thereby ensuring the stability and position accuracy of the diaphragm assembly 2. The diaphragm assembly 2 and the first inclined surface 1153 have a gap therebetween, which allows the light to penetrate between the diaphragm assembly 2 and the first inclined surface, optimizes the light transmission path, effectively illuminates the non-display area 300 domain below the diaphragm assembly 2, significantly reduces the visual dim phenomenon caused by the obstruction of light, and greatly improves the overall brightness of the display device 100.

[0120] Further, below the diaphragm assembly 2, the depth of the light-incident space corresponding to the outer side of the display area 200 by more than 0.5 mm is increased, so that the light can more smoothly penetrate to the lower side of the diaphragm assembly 2 and illuminate the diaphragm assembly 2, reducing the loss of light in the transmission process, thereby improving the overall brightness of the display device 100.

[0121] 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 the light can more smoothly penetrate to the lower side of the diaphragm assembly 2, reducing the loss of light in the transmission process, thereby improving the overall brightness of the display device 100.

[0122] The first inclined surface 1153 can be a curved surface or a folded surface. When the first inclined surface 1153 is a curved surface, the first inclined surface 1153 is a circular arc surface. When the first inclined surface 1153 is a curved surface, the first inclined surface 1153 can be a smooth circular arc surface, which helps to uniformly distribute the light, reduces glare and reflection, and further improves the display effect.

[0123] In some cases, the fixed frame 1 further includes a rib position 119, which is arranged on and protrudes from the first supporting surface 1151. When the diaphragm assembly 2 is overlapped on the first supporting surface 1151 of the frame 11, the rib position 119 abuts against the diaphragm assembly 2 to space the diaphragm assembly 2 and 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 further enhances the brightness performance of the display area 200 adjacent to the non-display area 300. This design aims to alleviate the visual dim phenomenon that may be caused by the obstruction of light transmission, thereby improving the overall display effect.

[0124] In the embodiments of the present application, the backlight module 10 can further include a back plate, a light source, a light guide plate, a film assembly 2, etc. The back plate is used to provide basic support and structural stability. The light source can be an LED (Light Emitting Diode) or a Mini LED, etc. The light source and the FPC (Flexible Printed Circuit) 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 uniformly distributed. The light guide plate is generally made of a material with high light transmittance. The light guide plate has a dot design inside, which can scatter light to form a uniform surface light source.

[0125] Please refer to Figure 19 , Figure 19 The first structure schematic diagram of the display device provided by the embodiments of the present application is shown. The embodiments of the present application further provide a display device 100 which integrates the frame 11 design described in the above embodiments or the backlight module 10 in the above embodiments, and optimizes the functionality and structure on this basis to improve the overall performance and user experience of the display device 100.

[0126] The embodiments of the present application also provide a display device 100, which is an electronic device or component. The core function of the display device 100 is to convert electronic signals, digital signals or other forms of signals into visual information such as images, characters and numbers that can be recognized by the human eye. The display device 100 can be a television, a computer monitor, a mobile phone screen, a vehicle display screen, etc.

[0127] The display device 100 includes the backlight module 10 and a 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 includes a liquid crystal layer, an electrode, a circuit board and other multi-layer structures. The liquid crystal module 20 displays images or information by controlling the arrangement of liquid crystal molecules.

[0128] The fixing frame 1 in the backlight module 10 is usually a frame-shaped structure, which is used to support and fix other components such as the film assembly 2 and the liquid crystal module 20. The fixing frame 1 forms an accommodating space 111, and a groove 113 is arranged on the inner surface of the frame 11. The film assembly 2 can be arranged in the accommodating space 111, i.e. on the inner side of the fixing frame, and in the groove 113. 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 film assembly 2 adopt a layered layout in the embodiments, and are not fixed on the same plane. Through the ingenious use of this layered design, sufficient fixing area is provided for the liquid crystal module 20 without affecting the expansion / contraction space of the film assembly 2, thereby significantly improving the display quality and stability of the overall display device 100.

[0129] 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, for fixing the liquid crystal module 20 on the frame 11. The liquid crystal module 20 is firmly fixed on 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.

[0130] Please refer to Figure 20 , Figure 20 The second structure diagram of the display device provided by the embodiment of the present application is shown. In order to further improve the stability and convenience of the liquid crystal module 20 fixation, the display device 100 further comprises an auxiliary positioning assembly 40 connected with the backlight module 10 and the liquid crystal module 20, and the auxiliary positioning assembly 40 corresponds 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.

[0131] 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, 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 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 30 is arranged between the first magnetic member 401 and the second magnetic member 402, which not only ensures the effect of adhesive fixation, but also avoids the interference of the magnetic member to the performance of the first adhesive 30.

[0132] The display device 100 further comprises a middle frame, the middle frame comprises a first frame portion, a second frame portion and a third frame portion, the first frame portion is arranged on the circumferential side of the fixing frame 1 and the back plate, the second frame portion and the third frame portion are connected with 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 along the direction perpendicular to the thickness direction of the display device 100, the second frame portion is connected with the side of the liquid crystal module 20 away from the backlight module 10, and the third frame portion is 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 fixation of the liquid crystal module 20. The third frame portion can be connected with the fixing frame 1 through a bolt.

[0133] 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 thus will not be described herein again. Further, the third adhesive member can be arranged between the liquid crystal module 20 and the second frame portion, for realizing accurate fixing.

[0134] 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 relevant description of other embodiments.

[0135] In the description of the present application, the terms "first", "second" are only used 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.

[0136] The fixing frame, backlight module and display device provided by the embodiments of the present application are described in detail above. The principles and implementation manners of the present application are described by applying specific examples in this paper, and the above description of the embodiments is only for helping understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manners and application scope can be changed, and the above description of the present application should not be understood as the limitation of the present application.

Claims

1. A fixture, characterized in that The display device comprises: a frame, the frame comprising a first support part and a second support part, the first support part having a first bearing surface; the second support part is connected to the first bearing surface of the first support part, the first support part and the second support part form a groove, and the second support part has a second bearing surface away from the first support part; the second support part further has a second inclined surface, the second inclined surface is towards the inner side of the frame, the second inclined surface is connected to the second bearing surface, and the second inclined surface is inclined away from the inner side of the frame from the second bearing surface; a second reflective layer is arranged on the second inclined surface.

2. The fixture of claim 1, wherein The second reflective layer is an ink layer or a plastic layer.

3. The fixture of claim 1 or 2, wherein The second support part is provided with a relief hole, and the axial direction of the relief hole is perpendicular to the thickness direction of the frame.

4. The fixture of claim 3, wherein The second support part comprises a sub-connection part and a sub-support part, the sub-connection part is connected to the first support part, the sub-connection part extends along the thickness direction of the frame, and the sub-support part is connected to the side of the sub-connection part away from the first support part; the side of the sub-support part away from the sub-connection part is the second bearing surface, the side of the sub-support part close to the inner side of the frame is the second inclined surface, and the relief hole is arranged on the sub-support part.

5. The fixture of claim 1 or 2, wherein The second support part is provided with a notch, and the fixing frame further comprises a filling piece arranged at the notch, the filling piece is provided with a relief hole, and the axial direction of the relief hole is perpendicular to the thickness direction of the frame.

6. The fixture of claim 5, wherein, The filling piece comprises a first filling part and a second filling part connected to each other, the first filling part extends along the thickness direction of the frame, the second filling part extends along the direction perpendicular to the thickness direction of the frame, the first filling part is connected to the first support part, and the second filling part is arranged opposite to the first bearing surface.

7. The fixture of claim 6, wherein Further comprising a third reflective layer arranged on the side of the second filling part close to the first bearing surface.

8. The fixture of claim 6, wherein, The side of the second filling part close to the first bearing surface is flush with the second inclined surface; and / or, the side of the second filling part away from the first bearing surface is flush with the second bearing surface.

9. A backlight module, characterized in that, The display device comprises: a fixing frame, the fixing frame being any one of the fixing frames according to claims 1 to 8; a membrane assembly lapped on the first bearing surface.

10. A display device, characterized by comprising: The display device comprises: a backlight module, the backlight module being the backlight module according to claim 9; a liquid crystal module arranged opposite to the backlight module, and the liquid crystal module is lapped on the second bearing surface of the frame.

11. The display device according to claim 10, wherein The second support part is provided with a relief hole, and the length direction of the relief hole is perpendicular to the thickness direction of the frame; and the membrane assembly can be partially arranged in the relief hole.

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