Display device

Abstract

The application discloses a display device, and belongs to the technical field of display. The display device comprises a back plate, a display panel, a middle frame and an optical film. The first frame body and the second frame body of the middle frame are two frame bodies manufactured in a split mode. In the assembling process of the display device, the edge part of the optical film is clamped with the side of the first frame body away from the back plate before the limiting strip of the second frame body limits the edge part of the optical film. In this way, when the optical film is clamped with the first frame body, the optical film is placed on the first frame body to realize the clamping of the optical film and the first frame body. Therefore, the optical film and the middle frame are clamped together without the aid of a jig, the assembling process of the display device is simplified, the working hours are reduced, the optical film will not be wrinkled or damaged, the regulation of the optical film on light is ensured, and the display effect of the display panel is ensured.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display device. Background Technology

[0002] With the continuous development of display technology, display devices are becoming increasingly widespread. A display device can include a back panel, a mid-frame, a backlight module, and a display panel. The backlight module can be located inside the back panel, and the mid-frame is located between the display panel and the back panel to support the display panel. The backlight module provides light to the display panel to ensure that the display panel can display an image.

[0003] Backlight modules in display devices are typically assembled from a light source, a reflector, a diffuser, and optical films. The optical films are used to adjust the light emitted by the light source to ensure that the display panel has a good display effect after being placed on it.

[0004] However, the current method of fixing optical films in display devices can affect the optical effect of the optical films, resulting in poor display performance of the display panel. Utility Model Content

[0005] This application provides a display device. It solves the problem that the fixing method of optical films in existing display devices can affect the optical effect of the optical films, resulting in poor display performance of the display panel. The technical solution is as follows:

[0006] A display device is provided, comprising: a back panel, a display panel, a mid-frame, and an optical film;

[0007] The back plate is located on the back of the display panel;

[0008] The middle frame is connected to the edge portion of the back panel and the edge portion of the display panel respectively, and the middle frame can form a hollow area; the middle frame includes: a first frame body and a second frame body connected to each other; the first frame body is closer to the hollow area than the second frame body;

[0009] The optical film is located between the back plate and the display panel, and the edge portion of the optical film is engaged with the side of the first frame away from the back plate.

[0010] The second frame has a limiting strip located on the side of the edge portion of the optical film away from the back plate; the first frame and the second frame are two frames manufactured separately.

[0011] In this way, during the assembly of the display device, the edge of the optical film is engaged with the side of the first frame away from the back plate before the limiting strip of the second frame restricts the edge of the optical film. Therefore, when engaging the edge of the optical film with the side of the first frame away from the back plate, the optical film can be placed on the first frame to achieve engagement. Compared with related technologies, this application eliminates the need for a fixture to engage the optical film with the middle frame, simplifying the assembly process of the display device, reducing labor time, and preventing wrinkles and damage to the optical film, thus ensuring the optical film's light control function and consequently guaranteeing the display effect of the display panel.

[0012] In one implementation, the edge portion of the optical film includes: a plurality of alternately distributed edge support portions and a plurality of snap-fit ​​portions; each of the edge support portions rests against the side of the first frame away from the back plate, and each of the snap-fit ​​portions snaps into the first frame.

[0013] The limiting strip covers each of the supporting parts and each of the snap-fit ​​parts.

[0014] In this way, the limiting strip in the second frame can not only limit the various edge support parts in the optical film, but also limit the various snap-fit ​​parts in the optical film, ensuring that the snap-fit ​​parts of the optical film and the first frame will not fail, thereby ensuring the reliability of the connection between the optical film and the middle frame.

[0015] In one implementation, each of the latching portions has at least one first latching slot, and the side of the first frame facing away from the back plate has a plurality of first latching protrusions; the plurality of first latching protrusions are latched one-to-one with the plurality of first latching slots.

[0016] Each of the first snap-fit ​​protrusions is located between the limiting strip and the first frame.

[0017] In this way, the second frame limits the first snap-fit ​​protrusion and the first slot that are snapped together, preventing the first slot of the optical film from falling off the first snap-fit ​​protrusion of the first frame, thus ensuring the reliability of the connection between the optical film and the middle frame.

[0018] In one implementation, the first snap-fit ​​protrusion includes: a first protrusion and a second protrusion, the second protrusion being connected to the first frame, and the first protrusion and the second protrusion being connected to the side opposite to the first frame; the area of ​​the second protrusion parallel to the cross-section of the display panel is greater than the area of ​​the first protrusion parallel to the cross-section of the display panel.

[0019] The first slot engages with the second protrusion.

[0020] In one implementation, the second frame includes: a first side plate and the limiting strip;

[0021] The first side panel is connected to the side of the first frame opposite to the hollow area; the limiting strip is connected to the side of the first side panel opposite to the back panel.

[0022] In this way, the second frame is connected to the first frame through the first side, and the limiting strip is connected to the side of the first side away from the back plate, so that the limiting strip of the second frame can be located at the edge of the optical film away from the first frame.

[0023] In one implementation, the snap-fit ​​portion protrudes from the edge support portion;

[0024] The first side plate has multiple clearance slots that penetrate through the first side plate;

[0025] The plurality of clearance slots correspond one-to-one with the plurality of snap-fit ​​parts, and each snap-fit ​​part extends out through the corresponding clearance slot.

[0026] In one implementation, the first side panel has a plurality of second slots; the side of the first frame away from the hollow area has a plurality of second snap-fit ​​protrusions; the plurality of second snap-fit ​​protrusions and the plurality of second slots are snapped into each other, so that the first side panel is snapped into the first frame.

[0027] And / or, the display device further includes: a first adhesive layer located between the first side panel and the first frame, such that the first side panel is bonded to the first frame via the first adhesive layer.

[0028] In one implementation, the side of the first frame away from the hollow area is divided into: a plurality of snap-fit ​​areas and a plurality of adhesive areas arranged alternately along the extending direction of the first frame.

[0029] Each of the snap-fit ​​areas has at least one second snap-fit ​​protrusion distributed therein; and the first adhesive layer includes: a plurality of first adhesive blocks, each of the plurality of first adhesive blocks corresponding one-to-one with the plurality of adhesive areas, and each of the first adhesive blocks being distributed within the corresponding adhesive area.

[0030] This ensures that the first side panel of the second frame can be connected to the first frame through a one-to-one correspondence between multiple second slots and multiple second snap-fit ​​protrusions, and can also be connected to the first frame through the first adhesive layer, thus ensuring the reliability of the connection between the second frame and the first frame.

[0031] In one implementation, each of the adhesive areas has a receiving groove, and a portion of the first adhesive block is located within the receiving groove.

[0032] In one implementation, the display device further includes a second adhesive layer located between the back panel and the first frame, wherein the first frame is bonded to the back panel via the second adhesive layer.

[0033] In one implementation, the second frame further includes: a plurality of second side plates connected to the side of the first side plate away from the limiting strip; the plurality of second side plates are spaced apart in the extending direction of the second frame, and the plurality of second side plates are located between the back plate and the first frame;

[0034] The second adhesive layer includes: a plurality of second adhesive blocks; the plurality of second adhesive blocks and the plurality of second side plates are arranged alternately in the extending direction of the first frame.

[0035] In this way, the multiple second adhesive blocks located between the first frame and the back panel can connect the first frame and the first back panel. The multiple second side panels in the second frame located between the first frame and the back panel can support the first frame and ensure the overall strength of the middle frame.

[0036] In one implementation, the edge portion of the display panel is fixedly connected to the side of the limiting strip opposite to the first frame. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the structure of a display device provided in an embodiment of this application;

[0039] Figure 2 This is a schematic diagram of the structure of an optical film provided in an embodiment of this application;

[0040] Figure 3 This is a schematic diagram of the structure of a middle frame and an optical diaphragm provided in an embodiment of this application;

[0041] Figure 4 This is a schematic diagram of the structure of a first frame and an optical diaphragm provided in an embodiment of this application;

[0042] Figure 5 This is a schematic diagram of the structure of a first frame provided in an embodiment of this application;

[0043] Figure 6This is a schematic diagram of another structure of the middle frame and optical film provided in an embodiment of this application;

[0044] Figure 7 This is a partial structural diagram of a second frame provided in an embodiment of this application;

[0045] Figure 8 This is a partial structural diagram of a first adhesive layer and a first frame provided in an embodiment of this application;

[0046] Figure 9 This is a partial structural diagram of a middle frame provided in an embodiment of this application;

[0047] Figure 10 This is a partial structural schematic diagram of a display device provided in an embodiment of this application;

[0048] Figure 11 This is a schematic diagram of the structure of another display device provided in an embodiment of this application. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0050] This application provides a display device; please refer to the embodiments described herein. Figure 1 , Figure 1 This is a schematic diagram of the structure of a display device provided in an embodiment of this application. The display device may include: a back plate 100, a display panel 200, a middle frame 300, and an optical film 400.

[0051] The back panel 100 in the display device can be located on the back of the display panel 200. Here, the back of the display panel 200 can be the side opposite to the display surface of the display panel 200.

[0052] It should be noted that the display device may include a light source device A, which may be located between the back panel 100 and the display panel 200. The back side of the display panel 200 is the side of the display panel 200 closest to the light source device A.

[0053] The middle frame 300 in the display device can be connected to the edge portion of the back panel 100 and the edge portion of the display panel 200 respectively, and the middle frame 300 can form a hollow area M. The middle frame 300 in the display device may include: a first frame 301 and a second frame 302 connected to each other. The first frame 301 in the middle frame 300 can be closer to the hollow area M than the second frame 302.

[0054] The optical film 400 in the display device can be located between the display panel 200 and the back panel 100, and the edge portion of the optical film 400 can be snapped onto the side of the first frame 301 in the middle frame 300 opposite to the back panel 100. In this way, the connection between the optical film 400 and the middle frame 300 can be achieved by snapping the optical film 400 onto the first frame 301 of the middle frame 300.

[0055] In this application, the second frame 302 in the middle frame 300 may have a limiting strip 3021. The limiting strip 3021 in the second frame 302 may be located on the side of the edge portion of the optical film 400 away from the back plate 100. In this way, the edge portion of the optical film 400 may be located between the limiting strips 3021 of the first frame 301 and the second frame 302. The limiting strip 3021 of the second frame 302 can ensure that the engagement between the edge portion of the optical film 400 and the first frame 301 will not fail, thereby ensuring the reliability of the connection between the optical film 400 and the middle frame 300.

[0056] For example, the back panel 100, the middle frame 300, and the display panel 200 can be arranged sequentially in a first direction X. Here, the first direction X can be perpendicular to the display panel 200. The second frame 302 in the middle frame 300 can be located on the side of the first frame 301 away from the hollow area M in a second direction Y. Here, the second direction Y can be parallel to the display panel 200 and perpendicular to the extending direction of the second frame 302. In this way, the first frame 301 can be connected to the back panel 100 in the first direction X, and the second frame 302 can be connected to the first frame 301 in the second direction Y.

[0057] It should be noted that the light source device A can be located between the back panel 100 and the optical film 400. The optical film 400 in the display device can regulate the light emitted by the light source device A so that the display panel 200 has a better display effect after the light emitted by the light source device A shines on the display panel 200 after passing through the optical film 400.

[0058] It should also be noted that the optical film 400 can generally be composed of an upper diffuser, an upper prism sheet, a lower prism sheet, and a lower diffuser. These components can be stacked along the direction from the display panel 200 toward the back panel 100. The upper diffuser in the optical film 400 has high light transmittance, which can widen the viewing angle and reduce glare. The upper and lower prism sheets in the optical film 400 can converge light for reuse, improving brightness. The lower diffuser in the optical film 400 has low light transmittance, which can increase uniformity. Furthermore, in this application, the optical film 400 in the display device can also be a composite film with multiple functions, combining the characteristics of the upper diffuser, upper prism sheet, lower prism sheet, and lower diffuser.

[0059] In this application, the first frame 301 and the second frame 302 in the middle frame 300 can be two frames manufactured separately. That is, the first frame 301 and the second frame 302 of the middle frame 300 are connected together during the assembly process of the display device.

[0060] Thus, during the assembly of the display device, when it is necessary to assemble the optical film 400 with the middle frame 300, the first frame 301 in the middle frame 300 can be connected to the back plate 100 first. Then, the optical film 400 can be placed on the side of the first frame 301 away from the back plate 100, and the edge of the optical film 400 can be snapped into the first frame 301. Next, the second frame 302 can be connected to the side of the first frame 301 away from the hollow area M, so that the limiting strip 3021 of the second frame 302 can be located on the side of the edge of the optical film 400 away from the first frame 301. Therefore, the side of the first frame 301 in the middle frame 300 that is away from the back plate 100 can be snapped together with the edge of the optical film 400. The limiting strip 3021 of the second frame 302 in the middle frame 300 can ensure that the snapping between the edge of the optical film 400 and the first frame 301 will not fail, thus realizing the connection between the optical film 400 and the middle frame 300.

[0061] Here, since the edge portion of the optical film 400 is engaged with the side of the first frame 301 opposite to the back plate 100 before the limiting strip 3021 of the second frame 302 limits the edge portion of the optical film 3021, the optical film 400 can be placed on the first frame 301 when the edge portion of the optical film 400 is engaged with the side of the first frame 301 opposite to the back plate 100, thus achieving the engagement between the optical film 400 and the first frame 301. Then, the second frame 302 is connected to the side of the first frame 301 opposite to the hollow region M, thereby limiting the edge portion of the optical film 400 with the limiting strip 3021. Compared with related technologies, this application eliminates the need for a fixture to snap the optical film to the mid-frame, simplifying the assembly process of the display device, reducing labor time, and preventing wrinkles and damage to the optical film 400, thus ensuring the light control function of the optical film 400 and thereby guaranteeing the display effect of the display panel 200.

[0062] In summary, this application provides a display device including a back panel, a display panel, a mid-frame, and an optical film. The first frame and the second frame within the mid-frame are two separately manufactured frames. During the assembly of the display device, after connecting the first frame to the back panel, the edge of the optical film can engage with the side of the first frame away from the back panel. Then, the second frame can be connected to the side of the first frame away from the hollow area. A limiting strip of the second frame can be located on the edge of the optical film away from the first frame to limit the edge position of the optical film. Since the edge of the optical film engages with the side of the first frame away from the back panel before the limiting strip of the second frame limits the edge position, the optical film can be placed on the first frame when engaging with the side of the first frame away from the back panel, thus achieving the engagement between the optical film and the first frame. Compared to related technologies, this application eliminates the need for a fixture to snap the optical film onto the mid-frame, simplifying the assembly process of the display device, reducing labor time, and preventing wrinkles and damage to the optical film, thus ensuring the optical film's ability to regulate light and consequently guaranteeing the display effect of the display panel.

[0063] In one implementation, please refer to Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of the structure of an optical film provided in an embodiment of this application. Figure 3 This is a schematic diagram of the structure of a mid-frame and an optical film provided in an embodiment of this application. The edge portion of the optical film 400 in the display device may include: a plurality of alternately arranged edge support portions 401 and a plurality of snap-fit ​​portions 402. Each edge support portion 401 in the optical film 400 can rest against the side of the first frame 301 in the mid-frame 300 opposite to the back plate 100, and each snap-fit ​​portion 402 in the optical film 400 can snap-fit ​​with the first frame 301. The limiting strip 3021 in the second frame 302 can cover each edge support portion 401 in the optical film 400 and can also cover each snap-fit ​​portion 402 in the optical film 400.

[0064] In this way, the limiting strip 3021 in the second frame 302 can not only limit the edge support portions 401 in the optical film 400, but also limit the snap-fit ​​portions 402 in the optical film 400, ensuring that the snap-fit ​​between the snap-fit ​​portions 402 of the optical film 400 and the first frame 301 will not fail, thereby ensuring the reliability of the connection between the optical film 400 and the middle frame 300.

[0065] In one implementation, such as Figure 2 and Figure 4 As shown, Figure 4This is a schematic diagram of the structure of a first frame and an optical film provided in an embodiment of this application. Each snap-fit ​​portion 402 in the optical film 400 may have at least one first snap-fit ​​slot K1. The side of the first frame 301 in the middle frame 300 opposite to the back plate 100 may have multiple first snap-fit ​​protrusions K2. The multiple first snap-fit ​​protrusions K2 of the first frame 301 can be snapped into the multiple first snap-fit ​​slots K1 of the optical film 400 in a one-to-one correspondence. In this way, by the one-to-one snap-fit ​​between the multiple first snap-fit ​​protrusions K2 of the first frame 301 and the multiple first snap-fit ​​slots K1 of the optical film 400, the snap-fit ​​between the optical film 400 and the first frame 301 can be realized.

[0066] In one implementation, such as Figure 3 and Figure 4 As shown, each of the first snap-fit ​​protrusions K2 of the optical film 400 can be located between the limiting strip 3021 of the second frame 302 and the first frame 301. In this way, the second frame 302 can limit the snap-fit ​​protrusions K2 and the first slot K1 that are snapped together, preventing the first slot K1 of the optical film 400 from falling off the first snap-fit ​​protrusions K2 of the first frame 301, and ensuring the reliability of the connection between the optical film 400 and the middle frame 300.

[0067] In one implementation, such as Figure 5 As shown, Figure 5 This is a schematic diagram of the structure of a first frame provided in an embodiment of this application. The first snap-fit ​​protrusion K2 of the frame 301 may include a first boss K21 and a second boss K22. The second boss K22 of the first snap-fit ​​protrusion K2 can be connected to the first frame 301, and the first boss K21 can be connected to the side of the second boss K22 away from the first frame 301. In this way, the first boss K21 and the second boss K22 in the first snap-fit ​​protrusion K2 can be arranged opposite to each other in a first direction X, where the first direction X is the first direction X in the above embodiment. The surface area of ​​the second boss K22 of the first snap-fit ​​protrusion K2 parallel to the cross-section of the display panel 200 can be larger than the area of ​​the first boss K21 of the first snap-fit ​​protrusion K2 parallel to the cross-section of the display panel 200. The first slot K1 of the optical film 400 is snapped with the second boss K22.

[0068] It should be noted that the inner diameter of the first slot K1 of the optical film 400 can be larger than the outer diameter of the first protrusion K21 of the corresponding first engaging protrusion K2, and can be approximately equal to the outer diameter of the second protrusion K22. In this way, the inner diameter of the first slot K1 of the optical film 400 being larger than the outer diameter of the first protrusion K21 of the corresponding first engaging protrusion K1 facilitates the first slot K1 fitting onto the first protrusion K21. The inner diameter of the first slot K1 being approximately equal to the outer diameter of the second protrusion K2 allows the first slot K1 to engage with the second protrusion K2 after fitting onto the first protrusion K21, thus achieving engagement between the first slot K1 and the corresponding first engaging protrusion K2. Therefore, during the assembly of the display device, the first slot K1 of the optical film 400 can engage with the second protrusion K22 after passing through the first protrusion K21 of the corresponding first engaging protrusion K2.

[0069] In one implementation, such as Figure 6 As shown, Figure 6 This is a schematic diagram of another structure of the middle frame and optical film provided in this application embodiment. The second frame 302 in the middle frame 200 may include: a first side plate 3022 and a limiting strip 3021. The first side plate 3022 of the middle frame 200 may be connected to the side of the first frame 301 opposite to the hollow region M. The limiting strip 3021 of the middle frame 200 may be connected to the side of the first side plate 3022 opposite to the back plate 100.

[0070] Here, the first side plate 3022 is connected to the side of the first frame 301 opposite to the hollow area M in the second direction Y, and the limiting strip 3021 is connected to the side of the first side plate 3022 opposite to the back plate 100 in the first direction X. In this way, the second frame 302 is connected to the first frame 301 through the first side plate 3022, and the limiting strip 3021 is connected to the side of the first side plate 3022 opposite to the back plate 100, so that the limiting strip 3021 of the second frame 302 can be located at the edge of the optical film 400 in the first direction X, opposite to the side of the first frame 301.

[0071] In one implementation, such as Figure 2 and Figure 6 As shown, the snap-fit ​​portion 402 of the optical diaphragm 400 can protrude from the edge support portion 401. The first side plate 3022 in the second frame 302 can have multiple clearance slots N, and the multiple clearance slots N on the first side plate 3022 can correspond one-to-one with the multiple snap-fit ​​portions 402 of the optical diaphragm 400. Each snap-fit ​​portion 402 of the optical diaphragm 400 can protrude through the corresponding clearance slot N. This further ensures the reliability of the snap-fit ​​between the snap-fit ​​portion 402 of the optical diaphragm 400 and the first frame 301, and further ensures the reliability of the connection between the optical diaphragm 400 and the middle frame 300.

[0072] In one implementation, such as Figure 7 , Figure 8 and Figure 9 As shown, Figure 7 This is a partial structural diagram of a second frame provided in an embodiment of this application. Figure 8 This is a partial structural diagram of a first adhesive layer and a first frame provided in an embodiment of this application. Figure 9 This is a partial structural diagram of a mid-frame provided in an embodiment of this application. The first side plate 3022 of the second frame 302 may have multiple second slots H1. The side of the first frame 301 opposite to the mid-frame area M may have multiple second engaging protrusions H2. The multiple second engaging protrusions H2 of the first frame 301 can engage one-to-one with the multiple second slots H1 of the first side plate 3022 in the second frame 302, so that the first side plate 3022 can engage with the first frame 301, thereby realizing the engagement between the second frame 302 and the first frame 301.

[0073] And / or, the display device may further include: a first adhesive layer 500. The first adhesive layer 500 in the display device may be located between the first side plate 3022 of the second frame 302 and the first frame 301, so that the first side plate 3022 of the second frame 303 can be bonded to the first frame 301, thereby realizing the snap-fit ​​connection between the second frame 302 and the first frame 301.

[0074] In one implementation, such as Figure 9 As shown, the side of the first frame 301 in the middle frame 300 away from the hollow area M can be divided into: multiple snap-fit ​​areas 301a and multiple adhesive areas 301b arranged alternately along the extension direction of the first frame 301.

[0075] At least one second snap-fit ​​protrusion H2 is distributed in each snap-fit ​​area 301a of the first frame 301, and at least one second snap-fit ​​groove H1 is distributed on the second side plate 3022 of the second frame 302 at a position corresponding to each snap-fit ​​area 301a, and at least one second snap-fit ​​groove H1 is snapped into each other with at least one second snap-fit ​​protrusion H2.

[0076] The first adhesive layer 500 in the display device includes a plurality of first adhesive blocks 500a. The plurality of first adhesive blocks 500a in the first adhesive layer 500 can correspond one-to-one with the plurality of adhesive areas 301b of the first frame 301, and each first adhesive block 500a can be distributed in the corresponding adhesive area 301b.

[0077] This ensures that the first side plate 3022 of the second frame 302 can be connected to the first frame 301 through a one-to-one correspondence of multiple second slots H1 and multiple second snap-fit ​​protrusions H2, and can also be connected to the first frame 301 through the first adhesive layer 500, thus ensuring the reliability of the connection between the second frame 302 and the first frame 301.

[0078] In one implementation, such as Figure 8 As shown, each bonding area 301b of the first frame 301 can have a receiving groove S, and at least a portion of the first adhesive block 500a can be located within the receiving groove S. It should be noted that since at least a portion of the first adhesive block 500a can be located within the receiving groove S, this ensures that the first side plate 3022 of the second frame 302 can be bonded to the first frame 301 via the first adhesive block 500a, while also ensuring that the second snap-fit ​​protrusion H2 on the first frame 301 can be located within the corresponding snap-fit ​​groove H1 on the first side plate 3022. This ensures the reliability of the connection between the first side plate 3022 of the second frame 302 and the first frame 301, thereby guaranteeing the reliability of the connection between the second frame 302 and the first frame 301.

[0079] In one implementation, such as Figure 10 and Figure 11 As shown, Figure 10 This is a partial structural diagram of a display device provided in an embodiment of this application. Figure 11 This is a schematic diagram of another display device provided in an embodiment of this application. The display device may further include a second adhesive layer 600. The second adhesive layer 600 in the display device may be located between the back plate 100 and the first frame 301, and the first frame 301 may be bonded to the back plate 100 through the second adhesive layer 600. This enables the connection between the first frame 301 and the back plate 100.

[0080] In one implementation, such as Figure 7 As shown, the second frame 302 in the middle frame 300 may further include a plurality of second side plates 3023 connected to the side of the first side plate 3022 away from the limiting strip 3021. In the extending direction of the second frame 302, the plurality of second side plates 3023 in the second frame 302 are spaced apart, and the plurality of second side plates 3023 may be located between the back plate 100 and the first frame 301.

[0081] The second adhesive layer 600 in the display device may include a plurality of second adhesive blocks 600a. In the extending direction of the first frame 301, the plurality of second adhesive blocks 600a of the second adhesive layer 600 may be arranged alternately with the plurality of second side panels 3023 of the second frame 3023. Thus, the plurality of second adhesive blocks 600a located between the first frame 301 and the back panel 100 can connect the first frame 301 to the first back panel 100.

[0082] It should be noted that the first frame 301 in the middle frame 300 can be made of plastic material, and the second frame 302 in the middle frame 300 can be made of stainless steel material. In this way, the multiple second side plates 3023 located between the first frame 301 and the back plate 100 in the second frame 302 can support the first frame 301 and ensure the overall strength of the middle frame 300.

[0083] In one implementation, such as Figure 10 As shown, the edge portion of the display panel 200 in the display device can be fixedly connected to the side of the limiting strip 3021 of the second frame 302 facing away from the first frame 301. Here, the second frame 302 can be made of stainless steel, and multiple second side plates 3023 in the second frame 302 are located between the first frame 301 and the back plate 100. In this way, the multiple second side plates 3023 of the second frame 302 can support the first frame 301 while also improving the overall strength of the middle frame 300, so that the middle frame 300 provides better support for the display panel 200.

[0084] In this application, as Figure 10 and Figure 11 As shown, the back panel 100 may include a back panel body 101 and side panels 102. The side panels 102 of the back panel 100 may be fixedly connected to the edge of the back panel body 101, and the side panels 102 of the back panel 100 may also form a hollow area M. The first frame 301 of the middle frame 300 may be fixedly connected to the side panel 102 of the back panel 100 away from the back panel body 101.

[0085] In this application, the display device may further include a reflective sheet 700 and a diffuser plate 800. The reflective sheet 700 in the display device may be located on the side of the back panel body 101 facing the display panel 100. The diffuser plate 800 in the display device may be located between the reflective sheet 700 and the optical film 400.

[0086] The light source device A in the display device can be located between the diffuser plate 800 and the reflector 700. The diffuser plate 800 in the display device can homogenize the light emitted by the light source device A, so that after the light passes through the diffuser plate 800 and then the light film 400 and is directed onto the display panel 200, the display panel 200 has a better display effect. The reflector 700 in the display device can reflect the light that is directed toward the back panel body 100 back onto the diffuser plate 800, thereby improving the light utilization rate.

[0087] It should be noted that, as Figure 11 As shown, the side 102 of the back plate 100 can form a groove B, and the groove B of the side 102 can face the hollow area. The edge portion of the diffuser plate 800 in the display device can be located in the groove B, realizing the connection between the diffuser plate 800 and the back plate 100.

[0088] In summary, this application provides a display device including a back panel, a display panel, a mid-frame, and an optical film. The first frame and the second frame within the mid-frame are two separately manufactured frames. During the assembly of the display device, after connecting the first frame to the back panel, the edge of the optical film can engage with the side of the first frame away from the back panel. Then, the second frame can be connected to the first frame, and a limiting strip of the second frame can be located on the side of the optical film away from the first frame to limit the edge position of the optical film. Since the edge of the optical film engages with the side of the first frame away from the back panel before the limiting strip of the second frame limits the edge position of the optical film, the optical film can be placed on the first frame when engaging with the side of the first frame away from the back panel, thus achieving the engagement between the optical film and the first frame. Compared to related technologies, this application eliminates the need for a fixture to snap the optical film onto the mid-frame, simplifying the assembly process of the display device, reducing labor time, and preventing wrinkles and damage to the optical film, thus ensuring the optical film's ability to regulate light and consequently guaranteeing the display effect of the display panel.

[0089] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0090] The above description is merely an embodiment of one implementation of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A display device, characterized in that, include: Back panel (100), display panel (200), mid-frame (300) and optical film (400); The back plate (100) is located on the back of the display panel (200); The middle frame (300) is connected to the edge portion of the back panel (100) and the edge portion of the display panel (200) respectively, and the middle frame (300) can form a hollow area (M); the middle frame (300) includes: a first frame (301) and a second frame (302) connected to each other; the first frame (301) is closer to the hollow area (M) than the second frame (302); The optical film (400) is located between the back plate (100) and the display panel (200), and the edge portion of the optical film (400) is engaged with the side of the first frame (301) away from the back plate (100); The second frame (302) has a limiting strip (3021), which is located on the side of the edge of the optical film (400) away from the back plate (100); the first frame (301) and the second frame (302) are two frames manufactured separately.

2. The display device according to claim 1, characterized in that, The edge portion of the optical film (400) includes: a plurality of alternately distributed edge support portions (401) and a plurality of snap-fit ​​portions (402); each of the edge support portions (401) rests against the side of the first frame (301) away from the back plate (100), and each of the snap-fit ​​portions (402) snaps into the first frame (301). The limiting strip (3021) covers each of the support portions (401) and each of the snap-fit ​​portions (402).

3. The display device according to claim 2, characterized in that, Each of the said snap-fit ​​parts (402) has at least one first snap-fit ​​groove (K1), and the first frame (301) has a plurality of first snap-fit ​​protrusions (K2) on the side opposite to the back plate (100); the plurality of first snap-fit ​​protrusions (K2) are snapped into the plurality of first snap-fit ​​grooves (K1) one by one; Each of the first snap-fit ​​protrusions (K2) is located between the limiting strip (3021) and the first frame (301).

4. The display device according to claim 3, characterized in that, The first snap-fit ​​protrusion (K2) includes a first boss (K21) and a second boss (K22). The second boss (K22) is connected to the first frame (301). The first boss (K21) and the second boss (K22) are connected to the side away from the first frame (301). The area of ​​the second boss (K22) parallel to the cross-section of the display panel (200) is greater than the area of ​​the first boss (K21) parallel to the cross-section of the display panel (200). The first slot (K1) engages with the second protrusion (K22).

5. The display device according to any one of claims 2 to 4, characterized in that, The second frame (302) includes: a first side plate (3022) and the limiting strip (3021); The first side panel (3022) is connected to the side of the first frame (301) opposite to the hollow area (M); the limiting strip (3021) is connected to the side of the first side panel (3022) opposite to the back panel (100).

6. The display device according to claim 5, characterized in that, The snap-fit ​​portion (402) protrudes from the edge support portion (401); The first side plate (3022) has a plurality of clearance slots (N) that penetrate the first side plate (3022); The plurality of clearance slots (N) correspond one-to-one with the plurality of snap-fit ​​parts (402), and each snap-fit ​​part (402) extends out through the corresponding clearance slot (N).

7. The display device according to claim 5, characterized in that, The first side panel (3022) has a plurality of second slots (H1); the first frame (301) has a plurality of second snap-fit ​​protrusions (H2) on the side opposite to the hollow area (M); the plurality of second snap-fit ​​protrusions (H2) and the plurality of second slots (H1) are snapped together one by one, so that the first side panel (3022) and the first frame (301) are snapped together; And / or, the display device further includes: a first adhesive layer (500) located between the first side panel (3022) and the first frame (301), such that the first side panel (3022) is bonded to the first frame (301) through the first adhesive layer (500).

8. The display device according to claim 7, characterized in that, The side of the first frame (301) away from the hollow area (M) is divided into: a plurality of snap-fit ​​areas (301a) and a plurality of adhesive areas (301b) arranged alternately along the extension direction of the first frame (301); At least one second snap-fit ​​protrusion (H2) is distributed within each of the snap-fit ​​areas (301a); The first adhesive layer (500) includes a plurality of first adhesive blocks (500a), each of which corresponds to a plurality of adhesive areas (301b), and each first adhesive block (500a) is distributed within the corresponding adhesive area (301b).

9. The display device according to claim 8, characterized in that, Each of the adhesive areas (301b) has a receiving groove (S), and a portion of the first adhesive block (500a) is located within the receiving groove (S).

10. The display device according to claim 5, characterized in that, The display device further includes a second adhesive layer (600), which is located between the back plate (100) and the first frame (301), and the first frame (301) is bonded to the back plate (100) through the second adhesive layer (600).

11. The display device according to claim 10, characterized in that, The second frame (302) further includes: a plurality of second side plates (3023) connected to the side of the first side plate (3022) away from the limiting strip (3021); the plurality of second side plates (3023) are spaced apart in the extending direction of the second frame (302), and the plurality of second side plates (3023) are located between the back plate (100) and the first frame (301); The second adhesive layer (600) includes: a plurality of second adhesive blocks (600a); the plurality of second adhesive blocks (600a) and the plurality of second side plates (3023) are arranged alternately in the extending direction of the first frame (301).

12. The display device according to any one of claims 1 to 4, 6 to 11, characterized in that, The edge portion of the display panel (200) is fixedly connected to the side of the limiting strip (3021) away from the first frame (301).

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