A display module, a display panel, and a display device

Abstract

An embodiment of the present invention provides a display module, a display panel, and a display device. Among them, the display module includes a backplane, a first frame, a backlight assembly, and a retaining wall structure; the backplane includes a bottom plate and a backplane side plate disposed around the edge of the bottom plate, and the bottom plate and the backplane side plate jointly form a receiving space for receiving the backlight assembly; the first frame includes a first side plate and a first top plate connected to the first side plate; the first side plate is disposed around the outside of the backplane side plate; the first top plate is disposed on the side of the first side plate away from the bottom plate; the edge of the backlight assembly is located between the bottom plate and the first top plate; a backplane connection hole is provided on the backplane side plate, and a first connection hole is provided on the first side plate; the retaining wall structure is disposed between the backplane side plate and the side surface of the backlight assembly, located between the bottom plate and the first top plate, and is correspondingly disposed with the backplane connection hole; the retaining wall structure is used to form an isolation space between the backplane connection hole and the backlight assembly, thereby enhancing the sealing performance of the display module and improving the quality of the display module.

Description

Technical Field

[0001] The present invention relates to the field of display technologies, and particularly to a display module, a display panel, and a display device. Background Art

[0002] With the development and popularization of Internet of Things technologies, there are more and more smart home products, and more and more display panels are integrated into household appliances. A display panel includes a display module. In a conventional display module, there are many pores in the structural design, and there is a certain amount of movement space for structures such as film materials. To cooperate with the structural installation of the whole machine, it is inevitable to design some screw holes on the side of the display module. Screws fix the backplane of the display module and the rubber frame together through the screw holes. In this way, foreign objects and water vapor are likely to enter the interior of the display module through the screw holes. The entry of foreign objects and water vapor will corrode the film materials, affect the light effect, and cause poor display. Especially for display panels applied to household appliances such as refrigerators or washing machines where the use environment has a large amount of water vapor, the above problems are more likely to occur. Summary of the Invention

[0003] The purpose of the embodiments of the present invention is to provide a display module, a display panel, and a display device to enhance the sealing performance of the display module and reduce the occurrence of poor display caused by foreign objects and water vapor entering the display module. The specific technical solutions are as follows:

[0004] An embodiment of the first aspect of the present application provides a display module, which includes a backplane, a first frame, a backlight assembly, and a retaining wall structure; the backplane includes a bottom plate and a backplane side plate disposed around the edge of the bottom plate, and the bottom plate and the backplane side plate jointly form a receiving space for receiving the backlight assembly; the first frame includes a first side plate and a first top plate connected to the first side plate; the first side plate is disposed around the outside of the backplane side plate; the first top plate is disposed on a side of the first side plate away from the bottom plate; an edge of the backlight assembly is located between the bottom plate and the first top plate; a backplane connection hole is provided on the backplane side plate, and a first connection hole is provided on the first side plate, and the backplane connection hole and the first connection hole are correspondingly disposed; the retaining wall structure is disposed between the backplane side plate and the side of the backlight assembly, is located between the bottom plate and the first top plate, and is correspondingly disposed with the backplane connection hole; the retaining wall structure is used to form an isolation space between the backplane connection hole and the backlight assembly.

[0005] In some embodiments of the present application, the retaining wall structure is U-shaped;

[0006] The U-shaped retaining wall structure is spaced apart from the backlight assembly;

[0007] The opening of the U-shaped retaining wall structure faces the backplane connection hole; the backplane connection hole is located within the opening of the U-shaped retaining wall structure;

[0008] The top of the retaining wall structure is in close contact with the first top plate; the bottom of the retaining wall structure is in close contact with the bottom plate;

[0009] The U-shaped retaining wall structure, the back plate and the first frame jointly form the isolation space.

[0010] In some embodiments of the present application, the open end of the U-shaped retaining wall structure is in close contact with the side plate of the back plate;

[0011] The U-shaped retaining wall structure, the bottom plate, the side plate of the back plate and the first top plate jointly form the isolation space.

[0012] In some embodiments of the present application, hollowed-out areas are formed on the left and right sides of the back plate connection hole;

[0013] The open end of the U-shaped retaining wall structure passes through the hollowed-out area and is in close contact with the first side plate of the first frame;

[0014] The U-shaped retaining wall structure, the bottom plate, the first side plate of the first frame and the first top plate jointly form the isolation space.

[0015] In some embodiments of the present application, the retaining wall structure and the back plate are of an integrally formed structure; or the retaining wall structure and the first frame are of an integrally formed structure.

[0016] In some embodiments of the present application, the retaining wall structure is a rivet post;

[0017] The opening of the rivet post faces the back plate connection hole, one end of the rivet post with an opening is inserted into the back plate connection hole, and the outer wall of the rivet post is in close fit with the inner wall of the back plate connection hole.

[0018] In some embodiments of the present application, the retaining wall structure is a housing structure with an opening at one end;

[0019] The opening of the housing structure faces the back plate connection hole and is fixedly connected to the side plate of the back plate;

[0020] The side plate of the back plate and the housing structure jointly form the isolation space.

[0021] In some embodiments of the present application, the retaining wall structure is a ring frame;

[0022] The top surface of the ring frame is in close contact with the first top plate; the bottom surface of the ring frame is in close contact with the bottom plate.

[0023] In some embodiments of the present application, the bottom plate is rectangular; the backplate side plates include two long side plates arranged oppositely, and two short side plates arranged oppositely;

[0024] The number of the backplate connection holes is multiple, and the multiple backplate connection holes are formed on the two short side plates, and the backplate connection holes located on different short side plates are arranged in a staggered manner;

[0025] The retaining wall structure is arranged in one-to-one correspondence with the backplate connection holes.

[0026] In some embodiments of the present application, both the number of the backplate connection holes and the number of the retaining wall structures are four, and the four backplate connection holes are evenly arranged on the two short side plates;

[0027] The backplate connection holes and the retaining wall structures are arranged between the one-tenth position and the one-third position of the short side plates.

[0028] In some embodiments of the present application, a hanging ear structure is formed on the backlight assembly;

[0029] A groove corresponding to the hanging ear structure is formed on the backplate side plate, and the hanging ear structure is arranged in the groove;

[0030] A barrier is provided between the backplate side plate and the first side plate at the groove, and the barrier is bent towards the bottom plate to form an L shape and is attached to the surface of the bottom plate away from the backlight assembly.

[0031] In some embodiments of the present application, the display module further includes a second frame;

[0032] The second frame includes a second side plate and a second top plate connected to the second side plate; the second side plate is disposed around the outside of the first side plate; the second top plate is disposed on a side of the second side plate away from the bottom plate;

[0033] The bottom plate, the first top plate and the second top plate are arranged in sequence;

[0034] The second side plate is provided with second connection holes; the backplate connection holes, the first connection holes and the second connection holes are correspondingly arranged to form fixing holes.

[0035] In some embodiments of the present application, the display module further includes: a display screen;

[0036] A step structure is formed on a side of the first top plate away from the bottom plate, and the display screen is disposed on the step structure;

[0037] The first top plate and the second top plate are arranged around the display screen; the edge of the display screen is located between the first top plate and the second top plate.

[0038] An embodiment of the second aspect of the present application provides a display panel, including the display module in any embodiment of the first aspect.

[0039] An embodiment of the third aspect of the present application provides a display device, including the display panel in any embodiment of the second aspect.

[0040] Beneficial effects of the embodiments of the present invention:

[0041] The display module of the embodiment of the present application includes a backplane, a first frame, a backlight assembly and a retaining wall structure. The backplane side plate is provided with a backplane connection hole, and the first side plate is provided with a first connection hole. The backplane connection hole and the first connection hole are correspondingly arranged. In this way, a fixing member (screw) can pass through the first connection hole and the backplane connection hole in sequence to fix the backplane and the first frame together. The retaining wall structure is arranged between the side of the backplane side plate and the side of the backlight assembly, located between the bottom plate and the first top plate, and correspondingly arranged with the backplane connection hole. The retaining wall structure is used to form an isolation space between the backplane connection hole and the backlight assembly. In this way, the backplane connection hole and the backlight assembly can be separated, so as to avoid foreign objects and moisture from entering the interior of the display module through the backplane connection hole, resulting in the corrosion of the film material. By setting the retaining wall structure, the sealing performance of the display module is enhanced, foreign objects and moisture are prevented from entering the display module, so as to avoid the occurrence of display defects caused by foreign objects and moisture, and the reliability quality of the display module is improved.

[0042] The display panel of the embodiment of the present application includes the display module in any embodiment of the first aspect. By setting the retaining wall structure, the sealing performance of the display module is enhanced, foreign objects and moisture are prevented from entering the display module, so as to avoid the occurrence of display defects caused by foreign objects and moisture, and the reliability quality of the display module is improved, thereby improving the quality of the display panel.

[0043] The display device of the embodiment of the present application includes the display panel in any embodiment of the second aspect. The display module included in the display panel enhances the sealing performance of the display module by setting the retaining wall structure, prevents foreign objects and moisture from entering the display module, so as to avoid the occurrence of display defects caused by foreign objects and moisture, and improves the reliability quality of the display module, thereby improving the quality of the display device. The display module of the present invention is particularly applicable to LCD (Liquid Crystal Display) display devices. Description of the Drawings

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other embodiments based on these drawings.

[0045] Figure 1 Structural schematic diagram of the display module according to an embodiment of the present application;

[0046] Figure 2 For Figure 1 Exploded structural schematic diagram;

[0047] Figure 3 Corresponding to the first embodiment of the present application Figure 1 B-B cross-sectional view of

[0048] Figure 4 Corresponding to the first embodiment of the present application Figure 2 Connection relationship diagram of the first side plate and the retaining wall structure at A of

[0049] Figure 5 For Figure 3 Corresponding top-down cross-sectional view;

[0050] Figure 6 Structural schematic diagram of the backplane and the second border in the embodiment of the present application;

[0051] Figure 7 Structural schematic diagram of the backplane, the first border and the second border in the embodiment of the present application (with a retaining wall structure);

[0052] Figure 8 Installation schematic diagram of the backplane and the backlight assembly in the embodiment of the present application;

[0053] Figure 9 Corresponding to the second embodiment of the present application Figure 1 B-B cross-sectional view of

[0054] Figure 10a Top-down cross-sectional view at the fixing hole in the third embodiment of the present application;

[0055] Figure 10b Corresponding to the third embodiment of the present application Figure 2 Connection relationship diagram of the first side plate and the retaining wall structure at A of

[0056] Figure 10c Corresponding to the third embodiment of the present application Figure 2 Connection relationship diagram of the first side plate and the retaining wall structure at A of

[0057] Figure 11 For the fourth embodiment of the present application Figure 1 is the B-B cross-sectional view;

[0058] Figure 12 For the fifth embodiment of the present application Figure 1 is the B-B cross-sectional view;

[0059] Figure 13 is the installation schematic diagram of the backplane and the retaining wall structure in the sixth embodiment of the present application;

[0060] Figure 14 is the installation schematic diagram of the backplane and the retaining wall structure in the seventh embodiment of the present application;

[0061] Figure 15 is the installation schematic diagram of the backlight assembly, the backplane and the film fixing member in the embodiment of the present application;

[0062] Figure 16 is Figure 1 the C-C cross-sectional view.

[0063] Explanation of reference numerals:

[0064] Display module 10; fixing hole 11; backplane 100; bottom plate 110; backplane side plate 120; backplane connection hole 121; groove 122; hollow area 123; first frame 200; first side plate 210; first connection hole 211; first top plate 220; reinforcement structure 221; backlight assembly 300; reflector 310; light guide plate 320; lower diffuser 330; DOP composite film 340; hanging ear structure 301; retaining wall structure 400; rivet post 410; film fixing member 500; second frame 600; second side plate 610; second connection hole 611; second top plate 620; mylar sheet 701; lamp bar 702; thermal conductive adhesive 703; fixing screw 704; display screen 800; barrier member 900. Detailed implementation manners

[0065] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art based on the present application belong to the scope of protection of the present invention.

[0066] In order to make the display module applicable to more application scenarios, the display module needs to be compatible with horizontal and vertical screens or horizontal and vertical compatibility in terms of structure. Taking the refrigerator scenario as an example, there is a lot of water vapor in the refrigerator usage scenario, which requires a higher sealing performance of the display module and requires better protection measures to prevent the entry of water vapor; at the same time, the refrigerator has the situation of repeatedly opening and closing the door, so the stability and reliability of the structure of the display module are also required to be higher.

[0067] Conventional monitor products are suitable for products with lower reliability requirements, and are generally used in horizontal screens at room temperature. If reliability tests are conducted in a vertical screen environment, undesirable phenomena such as film wrinkles and water vapor intrusion are likely to occur, and the display module structure is also difficult to meet the requirements of the door opening and closing test. Conventional MNT (Monitor) display products, if directly used in long-term vertical screen use, will have potential risks such as display module brightness changes, uniformity changes, poor picture quality, and film wrinkles.

[0068] In order to enhance the sealing of the display module and reduce the occurrence of poor display caused by foreign matter and water vapor entering the display module, the present application proposes a display module, a display panel and a display device.

[0069] like Figures 1 to 3 As shown, Figure 1 is a schematic structural diagram of a display module 10 according to an embodiment of the present application; Figure 2 for Figure 1 Schematic diagram of the decomposition structure; Figure 3 The first embodiment of the present application corresponds to Figure 1 BB cross-sectional view; The embodiment of the first aspect of the present application proposes a display module 10, which includes a back panel 100, a first frame 200, a backlight assembly 300 and a retaining wall structure 400. Specifically, the back panel 100 includes a bottom panel 110 and a back panel side panel 120 arranged around the edge of the bottom panel 110, and the bottom panel 110 and the back panel side panel 120 together form a accommodating space for accommodating the backlight assembly 300; the first frame 200 includes a first side panel 210 and a first top panel 220 connected to the first side panel 210; the first side panel 210 is arranged around the outside of the back panel side panel 120; the first top panel 220 is arranged on the side of the first side panel 210 away from the bottom panel 110; the edge of the backlight assembly 300 is located on the bottom panel 110 and the first top plate 220; a back plate connecting hole 121 is provided on the back plate side plate 120, and a first connecting hole 211 is provided on the first side plate 210, and the back plate connecting hole 121 and the first connecting hole 211 are arranged correspondingly; a retaining wall structure 400 is arranged between the back plate side plate 120 and the side of the backlight assembly 300, is located between the bottom plate 110 and the first top plate 220, and is arranged correspondingly to the back plate connecting hole 121; the retaining wall structure 400 is used to form an isolation space between the back plate connecting hole 121 and the backlight assembly 300.

[0070] The display module 10 according to an embodiment of the present application includes a backplane 100, a first frame 200, a backlight assembly 300, and a retaining wall structure 400. A backplane connection hole 121 is provided on a side plate 120 of the backplane, and a first connection hole 211 is provided on a first side plate 210. The backplane connection hole 121 and the first connection hole 211 are correspondingly arranged. In this way, a fixing member (screw) can pass through the first connection hole 211 and the backplane connection hole 121 in sequence to fix the backplane 100 and the first frame 200 together. The retaining wall structure 400 is arranged between the side of the backplane side plate 120 and the backlight assembly 300, is located between the bottom plate 110 and the first top plate 220, and is correspondingly arranged with the backplane connection hole 121. The retaining wall structure 400 is used to form an isolation space between the backplane connection hole 121 and the backlight assembly 300. In this way, the backplane connection hole 121 and the backlight assembly 300 can be separated, thereby preventing foreign objects and moisture from entering the interior of the display module 10 through the backplane connection hole 121, resulting in the corrosion of the film material. By providing the retaining wall structure 400, the display module 10 of the present application enhances the sealing performance of the display module 10, prevents foreign objects and moisture from entering the display module 10, thereby avoiding the occurrence of display defects caused by foreign objects and moisture, and improving the reliability quality of the display module 10.

[0071] The retaining wall structure 400 in the display module 10 according to the first embodiment of the present application will be described in detail below.

[0072] In the first embodiment of the present application, as Figures 3 to 5 shown, Figure 4 is a connection relationship diagram of the first side plate 210 at A corresponding to the first embodiment of the present application and the retaining wall structure 400, Figure 2 and Figure 5 is Figure 3 a corresponding top view cross-sectional view. The retaining wall structure 400 is U-shaped; the U-shaped retaining wall structure 400 is arranged at an interval from the backlight assembly 300; the opening of the U-shaped retaining wall structure 400 faces the backplane connection hole 121; the backplane connection hole 121 is located within the opening of the U-shaped retaining wall structure 400; the top of the retaining wall structure 400 is in close contact with the first top plate 220; the bottom of the retaining wall structure 400 is in close contact with the bottom plate 110; the U-shaped retaining wall structure 400, the backplane 100, and the first frame 200 together form an isolation space.

[0073] As Figure 5 and Figure 6 shown, Figure 6Schematic diagram of the backplane 100 and the second frame 600 in the embodiments of the present application. Hollow areas 123 are formed on both the left and right sides of the backplane connection hole 121; the open end of the U-shaped retaining wall structure 400 passes through the hollow area 123 and is in close contact with the first side plate 210 of the first frame 200; the U-shaped retaining wall structure 400, the bottom plate 110, the first side plate 210 and the first top plate 220 of the first frame 200 together form an isolation space.

[0074] The U-shaped retaining wall structure 400 and the first side plate 210 wrap the fixing hole 11 in the length and width directions of the display module 10, and the first top plate 220 and the bottom plate 110 wrap the fixing hole 11 in the thickness direction of the display module 10. The U-shaped retaining wall structure 400 and the existing structure together form an isolation space, which saves materials and helps control costs while isolating the fixing hole 11 from the inside of the display module 10. For the shielding effect of the retaining wall structure 400 on the fixing hole 11, please refer to Figure 7 , Figure 7 Schematic diagram of the backplane 100, the first frame 200 and the second frame 600 in the embodiments of the present application (with the retaining wall structure 400).

[0075] The retaining wall structure 400 is in contact with the first top plate 220 and the bottom plate 110. While playing a sealing role, it can also support the display screen 800 above it, increasing the effective support area. The occurrence of the outward turning of the first frame 200 is reduced, and the support in the thickness direction of the display module 10 makes the gap between the first frame 200 and the film material (backlight assembly 300) more fixed, reducing the reliability problems caused by film material damage.

[0076] For the specific dimensions of the retaining wall structure 400, please refer to Figure 3 and Figure 4 . The length L1 of the retaining wall structure 400 needs to be greater than the diameter of the backplane connection hole 121, and it can be 8 mm; the thickness of the retaining wall structure 400 can be equal to or slightly less than the thickness of the first frame 200, and it can be 1 mm; to ensure the assembly property, the minimum distance L2 between the bending part between the first side plate 210 and the first top plate 220 of the first frame 200 and the backplane side plate 120 should be greater than 0.4 mm, and it can be 0.5 - 0.9 mm. Considering the assembly property and the locking difference of the fixing parts (screws), the distance L3 between the retaining wall structure 400 and the backplane connection hole 121 can be 0.9 - 1.3 mm. The above data can also be applied to the following embodiments.

[0077] In the first embodiment of the present application, the retaining wall structure 400 and the first frame 200 can be an integrally formed structure. The first frame 200 and the retaining wall structure 400 are formed by the die-casting process, which saves production steps, is easy to process, helps reduce material costs and improve production efficiency.

[0078] The arrangement of the back plate connection hole 121 and the retaining wall structure 400 can be seen in Figures 6 to 8 , Figure 8 The following is a schematic diagram of the installation of the back panel 100 and the backlight assembly 300 in the embodiment of the present application; the bottom panel 110 may be rectangular; the back panel side panels 120 include two long side panels arranged opposite to each other, and two short side panels arranged opposite to each other; there are multiple back panel connection holes 121, and multiple back panel connection holes 121 are formed on the two short side panels, and the back panel connection holes 121 located on different short side panels are staggered; the retaining wall structure 400 is arranged in a one-to-one correspondence with the back panel connection holes 121. If the back panel connection holes 121 are arranged opposite to each other, a channel for water vapor to pass through will be formed, and water vapor is more likely to invade the backlight assembly 300 along the channel, resulting in poor display. The staggered arrangement of the back panel connection holes 121 located on different short side panels can reduce the occurrence of the above situation, and also has a fool-proof effect, which can reduce installation errors.

[0079] In some embodiments of the present application, Figure 8 As shown, the number of backplane connection holes 121 and the number of retaining wall structures 400 are both four, and the four backplane connection holes 121 are evenly arranged on the two short side panels; the backplane connection holes 121 and the retaining wall structure 400 are arranged between the one-tenth point and the one-third point of the short side panel. Two backplane connection holes 121 are arranged on each short side panel, and the two backplane connection holes 121 are arranged at intervals to ensure a certain distance from the long side panel to ensure the firmness of the fixation. It is recommended to set the number of backplane connection holes 121 on each short side panel to 2-3. Setting more backplane connection holes 121 will lead to higher costs and increase the probability of foreign matter and water vapor intrusion. The number of 2-3 can meet the fixing requirements.

[0080] In some other embodiments of the present application, the back panel connection hole 121 may also be provided on the long side panel according to actual needs, and the present application does not impose any limitation on this.

[0081] like Figure 9 As shown, Figure 9 The second embodiment of the present application corresponds to Figure 1 BB cross-sectional view; in the second embodiment of the present application, the only difference from the first embodiment is that the retaining wall structure 400 in the second embodiment is not an integrated structure with the first frame 200, but is a separate part. In this way, the retaining wall structure 400 can be directly installed on the basis of the existing horizontal display module without changing other structures, so as to enhance the sealing of the display module 10, reduce the occurrence of poor display module 10 caused by foreign matter and water vapor entering the display module 10, and improve the quality of the display module 10. The horizontal display module can be used in a vertical position and applied to more scenes.

[0082] In the second embodiment of the present application, the retaining wall structure 400 can be made of Rubber material. The rubber material with a certain amount of compression can adapt well to the shape of the structure in contact with it and fully contact with it to better play a sealing role.

[0083] like Figure 10a As shown, Figure 10a This is a top view of the fixing hole 11 in the third embodiment of the present application. In the third embodiment of the present application, the difference from the first embodiment is that the retaining wall structure 400 is not in close contact with the first side panel 210, but in close contact with the back panel side panel 120. Figure 10a The corresponding BB cross-section diagram is Figure 9 Consistent.

[0084] In the third embodiment of the present application, Figure 9 and Figure 10a As shown, the retaining wall structure 400 is U-shaped; the U-shaped retaining wall structure 400 is spaced apart from the backlight assembly 300; the opening of the U-shaped retaining wall structure 400 is arranged toward the back panel connecting hole 121; the back panel connecting hole 121 is located in the opening of the U-shaped retaining wall structure 400; the top of the retaining wall structure 400 is in close contact with the first top plate 220; the bottom of the retaining wall structure 400 is in close contact with the bottom plate 110; the U-shaped retaining wall structure 400, the back panel 100 and the first frame 200 together constitute an isolation space.

[0085] The open end of the U-shaped retaining wall structure 400 is in close contact with the back plate side plate 120; the U-shaped retaining wall structure 400, the bottom plate 110, the back plate side plate 120 and the first top plate 220 together constitute an isolation space.

[0086] The U-shaped retaining wall structure 400 and the back plate 100 cover the fixing hole 11 in the length and width direction of the display module 10, and the first top plate 220 and the bottom plate 110 cover the fixing hole 11 in the thickness direction of the display module 10. The U-shaped retaining wall structure 400 and the existing structure together form an isolation space, which can save materials and help control costs while isolating the fixing hole 11 from the inside of the display module 10.

[0087] In the third embodiment of the present application, the retaining wall structure 400 and the back plate 100 may be an integrally formed structure; or the retaining wall structure 400 and the first frame 200 may be an integrally formed structure. Figure 10b and Figure 10c As shown, Figure 10b The third embodiment of this application corresponds to Figure 2 A diagram showing the connection relationship between the first side plate 210 at A and the retaining wall structure 400 from a first viewing angle; Figure 10c The third embodiment of this application corresponds toFigure 2 A diagram showing the connection relationship between the first side plate 210 and the retaining wall structure 400 at A in the second perspective; a gap is provided between the retaining wall structure 400 and the first side plate 210 for installing the back plate side plate 120; a reinforcement structure 221 is provided at the connection between the retaining wall structure 400 and the first top plate 220, and an avoidance groove is provided at the position corresponding to the reinforcement structure 221 and the first connection hole 211 to provide installation space for the installation of the fixing member (screw). Chamfer structures can be provided on both sides of the avoidance groove; the contact surface between the retaining wall structure 400 and the back plate bottom plate 110 can also be provided with a chamfer structure.

[0088] like Figure 11 As shown, Figure 11 The fourth embodiment of the present application corresponds to Figure 1 BB cross-sectional view, in the fourth embodiment of the present application, the difference from the first embodiment is that the retaining wall structure 400 is not U-shaped, and does not need to be in close contact with the first side plate 210, but the retaining wall structure 400 is directly formed by fixing the rivet column 410 to the back plate 100.

[0089] In the fourth embodiment of the present application, Figure 11 As shown, the retaining wall structure 400 is a rivet post 410; the opening of the rivet post 410 is arranged toward the back plate connection hole 121, and one end of the rivet post 410 with an opening is inserted into the back plate connection hole 121, and the outer wall of the rivet post 410 is tightly fitted with the inner wall of the back plate connection hole 121. In this way, there is no need to change other structures of the existing display module 10. Only one process step is added during the molding process of the back plate 100. The rivet post 410 and the back plate 100 are prepared together, so as to enhance the sealing of the display module 10, reduce the entry of foreign matter and water vapor into the display module 10, and cause the occurrence of poor display, thereby improving the quality of the display module 10. The horizontal screen display module can be used in a vertical screen and applied to more scenes. Select a suitable rivet post 410 to press the rivet post 410 and the back plate 100 through a riveting process. The rivet post 410 can have a closed internal thread, and the screw hole formed thereby isolates the backlight assembly 300 from the outside.

[0090] like Figure 12 As shown, Figure 12 The fifth embodiment of the present application corresponds to Figure 1 BB cross-sectional view, in the fifth embodiment of the present application, the difference from the first embodiment is that the shape of the retaining wall structure 400 is not U-shaped, and does not need to be in close contact with the first side plate 210, but adopts a shell structure with an opening at one end, which is directly in close contact with the back plate 100.

[0091] In the fifth embodiment of the present application, Figure 12As shown, the retaining wall structure 400 can be a housing structure with an opening at one end; the opening of the housing structure faces the backplane connection hole 121 and is fixedly connected to the backplane side plate 120; the backplane side plate 120 and the housing structure together form an isolation space. In this way, only by the cooperation of the retaining wall structure 400 and the backplane side plate 120 can the isolation between the backlight assembly 300 and the fixing hole 11 be achieved. The cooperation relationship is simple, the number of sealing surfaces is small, and the probability of sealing failure is lower. Specifically, the shape of the retaining wall structure 400 can be a cuboid, and the corresponding top view cross-sectional view can be referred to Figure 10a .

[0092] As Figure 13 shown, Figure 13 FIG.

[0093] In the sixth embodiment of the present application, as Figure 13 shown, the retaining wall structure 400 is an annular frame; the top surface of the annular frame is in close contact with the first top plate 220; the bottom surface of the annular frame is in close contact with the bottom plate 110. In this way, the annular frame and the first top plate 220 and the bottom plate 110 together form an isolation space. The isolation space is annular, which can not only isolate the backlight assembly 300 and the fixing hole 11, but also isolate the backlight assembly 300 and other gaps, further improving the sealing effect, thereby further reducing the occurrence of the situation where foreign objects and moisture enter the display module 10 and cause the display module 10 to malfunction, and improving the quality of the display module 10.

[0094] As Figure 14 shown, Figure 14 FIG.

[0095] In some embodiments of the present application, as Figure 2 and Figure 3As shown, the display module 10 further includes a second frame 600; the second frame 600 includes a second side plate 610 and a second top plate 620 connected to the second side plate 610; the second side plate 610 is disposed around the outside of the first side plate 210; the second top plate 620 is disposed on a side of the second side plate 610 away from the bottom plate 110; the bottom plate 110, the first top plate 220, and the second top plate 620 are arranged in sequence; a second connection hole 611 is provided on the second side plate 610; the backplane connection hole 121, the first connection hole 211, and the second connection hole 611 are correspondingly arranged to form a fixing hole 11. A fixing member (screw) fixes the backplane 100, the first frame 200, and the second frame 600 together through the fixing hole 11. Specifically, the first frame 200 may be a glue frame, and the second frame 600 may be a metal frame.

[0096] The fixing holes 11 of the landscape display module are usually arranged on the short side. There is a risk of foreign matter and moisture intrusion when opening the fixing holes 11. If the landscape display module is used vertically, the fixing holes 11 are arranged in the up-and-down direction, and moisture is more likely to diffuse in the vertical direction and is easily penetrated directly from top to bottom, and water marks may also be left, resulting in poor display. In this application, by providing the retaining wall structure 400, the backlight assembly 300 is isolated from the fixing holes 11, and foreign matter and moisture cannot enter the interior of the display module 10 through the fixing holes 11, and the vertically arranged fixing holes 11 do not form a moisture channel, so that the landscape display module can be used vertically, and the display module 10 is structurally compatible in both landscape and portrait orientations.

[0097] In some embodiments of the present application, as Figures 1 to 3 shown, the display module 10 further includes a display screen 800; a stepped structure is formed on a side of the first top plate 220 away from the bottom plate 110, and the display screen 800 is disposed on the stepped structure; the first top plate 220 and the second top plate 620 surround the display screen 800; the edge of the display screen 800 is located between the first top plate 220 and the second top plate 620.

[0098] In some embodiments of the present application, as Figure 2 and Figure 3 shown, the backlight assembly 300 includes a reflective sheet 310, a light guide plate 320 (LGP), a lower diffuser 330, and a DOP (Diffuser on Prism) composite film 340 arranged in sequence along the direction away from the bottom plate 110. The DOP composite film 340 is composed of a diffusion film and a prism with an upper and lower structure. The DOP composite film 340 is formed by bonding multiple films, has better anti-wrinkle performance, and can reduce the thickness and cost while ensuring no reliable wrinkles.

[0099] The light guide plate 320 can be an MS (styrene-methyl methacrylate copolymer) light guide plate with Lenti microstructures on its surface. The Lenti microstructures refer to imprinting V-grooves on the light-emitting surface of the light guide plate 320, so that the light-emitting surface has a diffusion effect. Placing the prism angle in the DOP composite film 340 orthogonally to the Lenti of the MS light guide plate can achieve the maximum light efficiency, ensuring the maximum light efficiency without using a double prism structure. At the same time, it achieves the effects of reducing the thickness of the display module 10 and having reliable reliability. Whether it is used horizontally or vertically for a long time, it has extremely high stability, and the optical picture will not change when used horizontally or vertically.

[0100] As Figure 2 shown, the display module 10 further includes a light bar 702 and a thermal conductive adhesive 703. The light bar 702 is attached to the bottom plate 110 or the side plate 120 of the backplane 100 of the backplane 100 through the thermal conductive adhesive 703; the light-emitting surface of the light bar 702 faces the light-incident surface of the light guide plate 320, and the light emitted by the light bar 702 enters the light guide plate 320 through the light-incident surface of the light guide plate 320, and after multiple total reflections and refractions in the light guide plate 320, it is refracted out from the light-emitting surface of the light guide plate 320, and forms a uniform surface light source through the DOP composite film 340 to provide a light source for the display screen 800. The reflective sheet 310 can also be additionally attached to the side of the light guide plate 320, on the side away from the light bar 702. The width of the reflective sheet 310 on the side of the light guide plate 320 can be basically the same as the thickness of the light guide plate 320 to improve the brightness of the display module 10 and optimize the picture.

[0101] In some embodiments of the present application, as Figure 2 shown, the display module 10 further includes a PCB (Printed Circuit Board) and a mylar sheet 701. The PCB is fixed to the backplane 100 through fixing screws 704, and the mylar sheet 701 is arranged on the side of the PCB away from the backplane 100, playing a shielding and protecting role for the PCB and having a certain protective effect on water vapor.

[0102] In some embodiments of the present application, as Figure 15 shown, Figure 15The following is a schematic diagram of the installation of the backlight assembly 300, the back panel 100 and the film material fixing member 500 of the embodiment of the present application; the display module 10 also includes the film material fixing member 500; the film material fixing member 500 is disposed in the gap between the light guide plate 320 and the back panel side panel 120, and is disposed in contact with the light guide plate 320 and the back panel side panel 120. The film material fixing member 500 can fill the gap between the light guide plate 320 and the back panel side panel 120, thereby fixing the light guide plate 320, which is beneficial to improving the stability of the display screen. Specifically, the film material fixing member 500 can be made of Rubber, a rubber material with a certain amount of compression, which can well adapt to the shape of the gap, better fill the gap, and play a protective role while fixing the light guide plate 320, preventing the light guide plate 320 from being damaged by rigid contact.

[0103] In some embodiments of the present application, Figure 6 , Figure 8 and Figure 16 As shown, Figure 16 for Figure 1 CC cross-sectional view; a hanging ear structure 301 is formed on the backlight assembly 300; Figure 6 and Figure 8 A groove 122 corresponding to the ear structure 301 is formed on the back panel side panel 120, and the ear structure 301 is arranged in the groove 122; a blocking member 900 is provided between the back panel side panel 120 and the first side panel 210 at the groove 122, and the blocking member 900 is bent toward the bottom plate 110 to form an L shape, and is attached to the surface of the bottom plate 110 away from the backlight assembly 300.

[0104] The cooperation between the ear hanging structure 301 and the groove 122 can realize the limitation of the backlight assembly 300 in the length and width direction of the display module 10; the barrier 900 is set to further fill the gap between the back plate 100 and the first frame 200, so that the first frame 200 can reduce shaking after being engaged with the back plate 100, and at the same time reduce the gap, enhance the sealing, and reduce the risk of water vapor entering the interior of the display module 10 from the ear hanging structure 301, thereby ensuring the reliability of the optical film material. Enhance the water vapor protection capability in a long-term high temperature and high humidity environment. Specifically, the barrier 900 can be a barrier tape. The ear hanging structure 301 can be formed by the edges of the DOP composite film 340 and the lower diffuser 330 protruding toward the direction close to the back plate side plate 120.

[0105] like Figure 8As shown, the groove 122 corresponding to the ear structure 301 can be provided between adjacent backplane connection holes 121. With the design of the three-sided ear structure 301, there is no ear structure 301 on the side of the light bar 702, which will not affect the picture. Three ear structures 301 are provided on the long side, and two ear structures 301 are provided on each short side; when the display module 10 is placed horizontally or vertically, the backlight assembly 300 can be effectively limited, preventing it from being displaced, and ensuring the picture quality in all usage directions.

[0106] An embodiment of the second aspect of the present application provides a display panel, including the display module 10 in any embodiment of the first aspect.

[0107] The display panel of the embodiment of the present application includes the display module 10 in any embodiment of the first aspect. By setting the retaining wall structure 400, the sealing performance of the display module 10 is enhanced, preventing foreign objects and moisture from entering the display module 10, thus avoiding the occurrence of display defects caused by foreign objects and moisture, improving the reliability quality of the display module 10, and thereby improving the quality of the display panel.

[0108] An embodiment of the third aspect of the present application provides a display device, including the display panel in any embodiment of the second aspect.

[0109] The display device of the embodiment of the present application includes the display panel in any embodiment of the second aspect. The display module 10 included in the display panel enhances the sealing performance of the display module 10 by setting the retaining wall structure 400, preventing foreign objects and moisture from entering the display module 10, thus avoiding the occurrence of display defects caused by foreign objects and moisture, improving the reliability quality of the display module 10, and thereby improving the quality of the display device. The display module 10 of the present invention is particularly suitable for LCD (Liquid Crystal Display) display devices.

[0110] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0111] Each embodiment in this specification is described in a related manner. For the same or similar parts among the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments. In particular, for system embodiments, since they are basically similar to method embodiments, the description is relatively simple, and reference can be made to the corresponding parts of the method embodiments for relevant details.

[0112] The above are only the preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are all included in the protection scope of the present invention.

Claims

1. A display module, characterized in that, Comprising: A backplane, a first frame, a backlight assembly, and a retaining wall structure; The backplane includes a bottom plate and backplane side plates disposed around the edge of the bottom plate, and the bottom plate and the backplane side plates together form a receiving space for receiving the backlight assembly; The first frame includes a first side plate and a first top plate connected to the first side plate; the first side plate is disposed around the outside of the backplane side plates; the first top plate is disposed on a side of the first side plate away from the bottom plate; The edge of the backlight assembly is located between the bottom plate and the first top plate; Backplane connection holes are provided on the backplane side plates, and first connection holes are provided on the first side plates, and the backplane connection holes and the first connection holes are correspondingly disposed; The retaining wall structure is disposed between the backplane side plates and the side surface of the backlight assembly, is located between the bottom plate and the first top plate, and is correspondingly disposed with the backplane connection holes; the retaining wall structure is used to form an isolation space between the backplane connection holes and the backlight assembly; The retaining wall structure and the first frame are of an integral structure or a split structure; At the bent portion of the first side plate and the first top plate, a concave structure is formed that is recessed in a direction away from the bottom plate; One end of the backplane side plate away from the bottom plate extends into the concave structure, and there is a gap between the backplane side plate and the side wall of the concave structure away from the first side plate; The display module further includes a second frame and a display screen; The second frame includes a second side plate and a second top plate connected to the second side plate; the second side plate is disposed around the outside of the first side plate; the second top plate is disposed on a side of the second side plate away from the bottom plate; A stepped structure is formed on a side of the first top plate away from the bottom plate, and the display screen is disposed on the stepped structure; the edge of the display screen is located between the first top plate and the second top plate.

2. The display module according to claim 1, wherein The retaining wall structure is U-shaped; The U-shaped retaining wall structure is spaced apart from the backlight assembly; The opening of the U-shaped retaining wall structure faces the backplane connection holes; the backplane connection holes are located within the opening of the U-shaped retaining wall structure; The top of the retaining wall structure is in close contact with the first top plate; the bottom of the retaining wall structure is in close contact with the bottom plate; The U-shaped retaining wall structure, the backplane, and the first frame together constitute the isolation space.

3. The display module according to claim 2, wherein The opening end of the U-shaped retaining wall structure is in close contact with the backplane side plates; The U-shaped retaining wall structure, the bottom plate, the backplane side plates, and the first top plate together constitute the isolation space.

4. The display module according to claim 2, wherein, Hollowed-out areas are formed on the left and right sides of the backplane connection holes; The opening end of the U-shaped retaining wall structure passes through the hollowed-out areas and is in close contact with the first side plate of the first frame; The U-shaped retaining wall structure, the bottom plate, the first side plate of the first frame, and the first top plate together constitute the isolation space.

5. The display module according to claim 2, wherein The retaining wall structure and the backplane are of an integrally formed structure; or the retaining wall structure and the first frame are of an integrally formed structure.

6. The display module according to claim 1, wherein, The retaining wall structure is a rivet post; The opening of the riveting post faces the backplane connection hole, and the end of the riveting post with the opening is inserted into the backplane connection hole, and the outer wall of the riveting post is in close fit with the inner wall of the backplane connection hole.

7. The display module according to claim 1, wherein The retaining wall structure is a housing structure with an opening at one end; The opening of the housing structure faces the backplane connection hole and is fixedly connected to the backplane side plate; The backplane side plate and the housing structure together form the isolation space.

8. The display module according to claim 1, wherein The retaining wall structure is an annular frame; The top surface of the annular frame is in close contact with the first top plate; the bottom surface of the annular frame is in close contact with the bottom plate.

9. The display module according to claim 1, wherein The bottom plate is rectangular; the backplane side plates include two long side plates arranged oppositely and two short side plates arranged oppositely; The number of the backplane connection holes is multiple, and the multiple backplane connection holes are formed on the two short side plates, and the backplane connection holes on different short side plates are arranged in a staggered manner; The retaining wall structure is arranged in one-to-one correspondence with the backplane connection hole.

10. The display module according to claim 9, wherein, The number of the backplane connection holes and the number of the retaining wall structures are both four, and the four backplane connection holes are evenly arranged on the two short side plates; The backplane connection hole and the retaining wall structure are arranged between the one-tenth point position and the one-third point position of the short side plate.

11. The display module according to claim 1, wherein A hanging ear structure is formed on the backlight assembly; A groove corresponding to the hanging ear structure is formed on the backplane side plate, and the hanging ear structure is arranged in the groove; A barrier is provided between the backplane side plate and the first side plate at the groove, and the barrier is bent towards the bottom plate to form an L shape and is attached to the surface of the bottom plate away from the backlight assembly.

12. The display module according to claim 1, wherein The bottom plate, the first top plate and the second top plate are arranged in sequence; A second connection hole is provided on the second side plate; the backplane connection hole, the first connection hole and the second connection hole are correspondingly arranged to form a fixing hole.

13. The display module according to claim 1, wherein The first top plate and the second top plate surround the display screen.

14. A display panel, characterized in that, Including the display module according to any one of claims 1 to 13.

15. A display device, characterized in that, Including the display panel according to claim 14.

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