Display device

Abstract

The application discloses a display device, comprising a display panel, a backlight module and a first adhesive. The plate of the backlight module comprises a main body, a first bending structure and a second bending structure. The main body is configured to carry an optical assembly. The first bending structure is bently connected to an edge of the main body. The second bending structure is bently connected to one end of the first bending structure away from the main body, and is located on a side of the first bending structure close to the optical assembly. The second bending structure is configured to carry the display panel, and has a first face and a second face opposite to each other in a first direction. A recess is arranged on the first face, and the recess is recessed from the first face to the second face to form a protrusion on the second face. The first adhesive is at least partially arranged in the recess. The display device of the application can increase the strength of the second bending structure, and use a thicker first adhesive to solve the problem of display panel compression light leakage.

Description

Technical Field

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

[0002] Display devices typically include a display panel, a backlight module, and a back cover. The backlight module typically includes a back plate, a light source, and optical films. The light source and optical films are housed inside the back plate, and the display panel is fixed to the back plate, so that the light emitted by the light source passes through the optical films and displays image information on the front side of the display panel.

[0003] In related technologies, the edge of the back panel is usually bent to form a support part for supporting the display panel. However, the support part of this architecture is not strong enough and is prone to deformation, which affects the reliability of the display panel. Utility Model Content

[0004] This application discloses a display device that can increase the strength of the second bending structure used to support the display panel, while also using a thicker first adhesive to solve the problem of compressive light leakage from the display panel.

[0005] To achieve the above objectives, embodiments of this application disclose a display device, including:

[0006] Display panel;

[0007] Backlight module, the backlight module comprising:

[0008] Optical components;

[0009] Backplate, the backplate comprising:

[0010] Main body, which is configured to carry the optical component;

[0011] A first bending structure is bent and connected to the edge of the main body and extends along a first direction;

[0012] The second bending structure is bent and connected to the end of the first bending structure away from the main body, and the second bending structure is located on the side of the first bending structure closer to the optical component. The second bending structure is configured to support the display panel, and the second bending structure has a first surface and a second surface opposite to each other along the first direction.

[0013] A first adhesive component is bonded between the second bent structure and the display panel;

[0014] The first surface has a recessed portion, which is recessed from the first surface to the second surface to form a protrusion on the second surface. The first adhesive is at least partially disposed in the recessed portion, and the first direction is the thickness direction of the display device.

[0015] The display device provided in this application uses a second bending structure as a component supporting the display panel. The first surface serves as the supporting surface. By providing a recessed portion on the supporting surface that faces the second surface and forming a protrusion on the second surface, an effect similar to a reinforcing rib is created in the second bending structure, thus altering the cross-sectional shape of the portion supporting the display panel. When the second bending structure is subjected to pressure from the display panel or external impact, the structure formed by the recessed portion and the protrusion effectively suppresses bending deformation caused by external forces, thereby significantly improving the structural strength of the second bending structure. This makes the second bending structure less prone to deformation, and consequently, makes the installation of the display panel more reliable.

[0016] Meanwhile, the first surface serves as the support surface for the display panel. The recessed portion is recessed from the first surface to the second surface, which increases the distance between the recessed portion and the display panel. Combined with the arrangement of the first adhesive member between the second bending structure and the display panel located in the recessed portion, a thicker first adhesive member can be used while keeping the distance between the display panel and the optical components unchanged. Since the thicker first adhesive member has higher compressibility and elasticity, it can absorb local pressure on the display panel, making the display panel subjected to uniform force. This can prevent light leakage in the pressure area of ​​the display panel, thereby solving the problem of pressure-induced light leakage of the display panel.

[0017] As an optional implementation, the second bending structure includes:

[0018] The first bend is connected to the end of the first bend structure away from the main body and extends in the first direction toward the main body.

[0019] A first support portion is bent and connected to a first bend portion. The first support portion is arranged parallel to at least a portion of the main body portion. The first support portion is configured to support the display panel. The first support portion has a first surface and a second surface.

[0020] By dividing the second bending structure into a first bending portion and a first supporting portion, the first bending portion bends from its end toward the main body, causing the first supporting portion to also be positioned closer to the main body. Both the first bending portion and the first supporting portion utilize the thickness space of the first bending structure along the first direction. That is, the space between the first bending portion and the first supporting portion defines a space for mounting the display panel, while the space between the first supporting portion, the first bending structure, and the main body defines a space for mounting optical components. Both of these spaces utilize the thickness space of the first bending structure along the first direction. This arrangement, without changing the height of the first bending structure along the first direction, allows the display panel to avoid additionally occupying the thickness space of the display device along the first direction, effectively reducing the overall thickness of the display panel and back panel. This, in turn, facilitates a reduction in the overall thickness of the display device, thus enabling a thinner display panel design.

[0021] As an optional implementation, the distance between the display panel and the optical component is H1, where H1 ≥ 2 mm and / or H1 ≤ 6 mm.

[0022] If the distance between the display panel and the optical component is less than 2mm, the display panel and the optical component are too close. During assembly or when subjected to external force, the display panel is likely to come into contact with the optical component, causing the optical component to be scratched or deformed.

[0023] If the distance between the display panel and the optical components is greater than 6mm, the overall thickness of the display device will increase, hindering its slim design. Furthermore, an excessively large distance will increase the propagation distance of light after it exits the optical components, potentially leading to light intensity attenuation and reduced display brightness.

[0024] Therefore, by limiting the distance between the display panel and the optical components to a reasonable range, it is possible to prevent the optical components from being scratched or deformed, while also preventing the display device from being too thick, thus facilitating the thinning of the display device.

[0025] As an optional implementation, the display device further includes:

[0026] The second adhesive is bonded to the protrusion, and a portion of the second adhesive is bonded to the second surface. The second adhesive is spaced apart from the optical component along the first direction.

[0027] By providing a second adhesive component on the second surface of the second bent structure, the second adhesive component fills a portion of the space between the optical component and the second bent structure, thereby reducing the movement gap of the optical component. This allows the optical component to preferentially contact the second adhesive component when subjected to external vibrations. Since the second adhesive component is typically a cushioning material such as foam, it can prevent contact damage to the optical component. For example, if there is a 2mm gap between the optical components, without the second adhesive component, the optical component has a 2mm movement margin towards the display panel. However, with the second adhesive component, the optical component is constrained, reducing the overall movement margin and making it less likely for the optical component to contact the display panel, thus preventing abrasion.

[0028] Meanwhile, by setting the second adhesive at a distance from the optical component along the first direction, that is, by maintaining a certain gap between the second adhesive and the optical component, it is possible to facilitate the installation of the optical component and prevent the optical component from wrinkling due to excessive constraint by the second adhesive after installation, thereby ensuring the good performance of the optical component.

[0029] Furthermore, a protrusion is formed on the second surface, shortening the minimum distance between the second bend and the optical component. Since the second adhesive is bonded to the protrusion, a thinner second adhesive can be used without changing the distance between it and the optical component. This reduces the material cost of the second adhesive while preventing damage to the optical component. Therefore, this application's design, which features a recess on the first surface facing the second surface and a protrusion on the second surface, increases the structural strength of the second bend structure while also addressing the problem of pressure-induced light leakage in the display panel and reducing the material cost of the second adhesive.

[0030] As an optional implementation, the distance between the surface of the second adhesive member facing away from the second surface and the optical component is H2, where H2 ≤ 1 mm.

[0031] If the distance between the surface of the second adhesive component away from the second surface and the optical component is greater than 1mm, the second adhesive component will have limited constraint on the optical component. When the display device is subjected to vibration or collision during transportation, the excessive distance may result in a large margin for the optical component to move slightly towards the display panel, making it easier for the optical component to come into contact with the display panel and cause wear between them, thus causing the optical component to be damaged.

[0032] Therefore, by limiting the distance between the surface of the second adhesive member facing away from the second surface and the optical component to no more than 1 mm, the movement gap of the optical component when subjected to vibration can be effectively reduced, preventing the optical component from contacting the display panel, thereby effectively reducing frictional damage to the optical component.

[0033] As an optional implementation, the distance between the display panel and the optical component is H1, where H1 ≥ 2 mm, and / or H1 ≤ 6 mm;

[0034] The thickness of the first adhesive component is not greater than 3 mm, and the thickness of the second adhesive component is not less than 0.2 mm.

[0035] If the distance between the display panel and the optical component is less than 2mm, the display panel and the optical component are too close. During assembly or when subjected to external force, the display panel is likely to come into contact with the optical component, causing the optical component to be scratched or deformed.

[0036] If the distance between the display panel and the optical components is greater than 6mm, the excessive distance will increase the overall thickness of the display device, hindering its slim design. Furthermore, it will increase the propagation distance of light after it exits the optical components, potentially leading to light intensity attenuation and reduced display brightness.

[0037] Therefore, by limiting the distance between the display panel and the optical components to a reasonable range, it is possible to prevent the optical components from being scratched or deformed, while also preventing the display device from being too thick, thus facilitating the thinning of the display device.

[0038] The spacing between the display panel and the optical components, as well as the distance between the surface of the second adhesive member facing away from the second surface and the optical components, are kept within a reasonable range. The thickness of the first adhesive member and the thickness of the second adhesive member will reasonably allocate the remaining space.

[0039] If the thickness of the first adhesive is greater than 3mm, it means that the allowance for allocating the thickness of the second bending structure, the second adhesive, and H1 between the display panel and the optical components will not exceed 3mm. This cannot effectively ensure that the second bending structure has sufficient thickness to guarantee structural strength, while also ensuring that the second adhesive has a certain thickness to effectively buffer against minor movements of the optical components, and that there is a certain gap between the second adhesive and the optical components for the installation of the optical components. Furthermore, if the thickness of the first adhesive is too thick, the cohesive force of the adhesive layer will be insufficient, potentially weakening the adhesive strength. Therefore, by limiting the thickness of the first adhesive to a minimum, while ensuring sufficient thickness to address pressure-induced light leakage, the thickness of the first adhesive will not excessively compress the gap between the display panel and the optical components. This allows for reasonable allocation space for the second adhesive and the gap between the second adhesive and the optical components, and ensures that the first adhesive has sufficient adhesive strength.

[0040] If the thickness of the second adhesive is less than 0.2 mm, it will not be able to effectively absorb vibration and impact when subjected to vibration, and the optical component will still be prone to hard collisions. Therefore, by limiting the thickness of the optical second adhesive to not less than 0.2 mm, the second adhesive can effectively buffer the optical component when it undergoes minor movements, thereby improving the safety of the optical component.

[0041] It is evident that by limiting the thickness of the first adhesive to no more than 3mm and the thickness of the second adhesive to no less than 0.2mm, the thickness of the first adhesive can prevent excessive compression of the gap between the display panel and the optical components. This allows for reasonable allocation of space for the second adhesive and the gap between the second adhesive and the optical components, while also ensuring that the second adhesive effectively buffers the optical components when they undergo minor movements, thus improving the safety of the optical components.

[0042] As an alternative implementation, the second bending structure further has a side surface connecting the first surface and the second surface, the side surface being arranged parallel to the first bending structure, and the recess extending to the side surface.

[0043] As a weak point that is prone to deformation due to external forces, the edge area can be locally reinforced by extending the recess to the side surface. That is, the recess is located at the edge of the second bending structure, which disperses the edge stress and helps reduce the risk of edge warping.

[0044] As an alternative implementation, the cross-sectional shape of the recess is arc-shaped, rectangular, or triangular.

[0045] By making the recessed part arc-shaped, stress concentration caused by sharp corners can be avoided, and stress distribution can be made uniform.

[0046] By setting the recess to a rectangle, the processing is simple. With a fixed maximum depth of the recess, the first adhesive can be accommodated in more of the recess, that is, the filling rate of the first adhesive is higher. The two sides of the recess can position and constrain the first adhesive, and make the bonding of the first adhesive more reliable.

[0047] By setting the recessed part as a triangle, the sharp corner can form a positioning point when the first adhesive part is pasted, making it easier for the first adhesive part to be accurately aligned.

[0048] As an alternative implementation, the first adhesive has a third surface facing the first surface, and when the cross-sectional shape of the recess is arc-shaped or triangular, the third surface is configured to fit the shape of the recess.

[0049] By adapting the shape of the groove on the third surface of the first adhesive member to match the shape of the recess, for example, if the cross-sectional shape of the recess is arc-shaped, then the third surface is also arc-shaped; or if the cross-sectional shape of the recess is triangular, then the third surface is also triangular. With this configuration, the bonding area between the first adhesive member and the recess can be increased without changing the width of the first adhesive, which is beneficial to increasing the reliability of the adhesive.

[0050] This application also discloses a display device, comprising:

[0051] Display panel;

[0052] Backlight module, the backlight module comprising:

[0053] Optical components;

[0054] A backplate configured to support the optical components;

[0055] The middle frame, located on the outer periphery of the back panel, includes:

[0056] A connecting portion configured to connect to the back plate;

[0057] The second support portion is bent and connected to one end of the connecting portion. The second support portion is located on the side of the connecting portion near the back plate. The second support portion is configured to support the display panel. The second support portion has a first surface and a second surface that are opposite to each other along a first direction.

[0058] A first adhesive component is bonded between the second support portion and the display panel;

[0059] The first surface has a recessed portion, which is recessed from the first surface to the second surface to form a protrusion on the second surface. The first adhesive is located in the recessed portion, and the first direction is the thickness direction of the display device.

[0060] By using a back plate to support the optical components and a middle frame around the outer perimeter of the back plate to support the display panel, the middle frame, as an independent component, can distribute the stress on the back plate and reduce the risk of deformation. Furthermore, by connecting the middle frame and the back plate to form a double-layer support frame, the structural rigidity of the display device can be significantly improved.

[0061] Building upon this, a recessed portion facing the second surface is formed on the bearing surface of the recessed portion on the middle frame, and a protrusion is formed on the second surface, creating an effect similar to a reinforcing rib on the second bearing portion. This improves the structural strength of the second bearing portion and makes it less prone to deformation. Simultaneously, while maintaining the same distance between the display panel and the optical components, a thicker first adhesive can be used to address the issue of pressure-induced light leakage from the display panel.

[0062] Compared with the prior art, the beneficial effects of this application are:

[0063] The display device provided in this application uses a second bending structure as a component supporting the display panel. The first surface serves as the supporting surface. By providing a recessed portion on the supporting surface that faces the second surface and forming a protrusion on the second surface, an effect similar to a reinforcing rib is created in the second bending structure, thus altering the cross-sectional shape of the portion supporting the display panel. When the second bending structure is subjected to pressure from the display panel or external impact, the structure formed by the recessed portion and the protrusion effectively suppresses bending deformation caused by external forces, thereby significantly improving the structural strength of the second bending structure. This makes the second bending structure less prone to deformation, and consequently, makes the installation of the display panel more reliable.

[0064] Meanwhile, the first surface serves as the support surface for the display panel. The recessed portion is recessed from the first surface to the second surface, which increases the distance between the recessed portion and the display panel. Combined with the arrangement of the first adhesive member between the second bending structure and the display panel located in the recessed portion, a thicker first adhesive member can be used while keeping the distance between the display panel and the optical components unchanged. Since the thicker first adhesive member has higher compressibility and elasticity, it can absorb local pressure on the display panel, making the display panel subjected to uniform force. This can prevent light leakage in the pressure area of ​​the display panel, thereby solving the problem of pressure-induced light leakage of the display panel. Attached Figure Description

[0065] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the 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.

[0066] Figure 1 This is a schematic diagram of the display device disclosed in this application;

[0067] Figure 2 This is an exploded view of the display device disclosed in this application;

[0068] Figure 3 This is a schematic diagram of the structure of the backplate disclosed in this application;

[0069] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0070] Figure 5 This is one of the partial cross-sectional views of the display device disclosed in this application;

[0071] Figure 6 This is a second partial cross-sectional view of the display device disclosed in this application;

[0072] Figure 7 This is a partial cross-sectional view of a display device with a rectangular cross-sectional shape for the recessed portion disclosed in this application;

[0073] Figure 8 This is a partial cross-sectional view of a display device with a triangular cross-sectional shape for the recessed portion disclosed in this application;

[0074] Figure 9 This is a partial cross-sectional view of the display device with the recessed portion located at the edge, as disclosed in this application;

[0075] Figure 10 This is a partial cross-sectional view of the display device with a mid-frame disclosed in this application.

[0076] Explanation of reference numerals in the attached figures:

[0077] 100. Display device; 10. Display panel; 20. Backlight module; 21. Optical component; 211. Reflective sheet; 212. Diffuser plate; 213. Optical film; 22. Back plate; 22a. First side; 22b. Second side; 22c. Third side; 22d. Fourth side; 22e. Opening; 221. Main body; 221a. Backlight cavity; 222. First bending structure; 223. Second bending structure; 223a. First surface; 223b. Second surface; 223c. Recessed portion; 223d. Protrusion; 223e, side surface; 2231, first bend; 2232, first support portion; 23, light source; 30, first adhesive; 30a, third surface; 30b, fourth surface; 40, second adhesive; 50, middle frame; 51, connecting portion; 511, second bend; 512, third bend; 52, second support portion; H1, distance between display panel and optical component; H2, distance between the surface of second adhesive away from second surface and optical component; X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0078] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0079] In this application, the terms "upper," "inner," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0080] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0081] Furthermore, the terms "set up," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0082] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0083] The technical solution of this application will be further described below with reference to the embodiments and accompanying drawings.

[0084] This application discloses a display device 100, which includes, but is not limited to, electronic display products such as televisions, computer monitors, and liquid crystal display panels 10.

[0085] With the display device 100 in its operating state as a reference, the direction facing the user is defined as the front, and the direction away from the user is defined as the rear. The front-rear direction is the thickness direction of the display device 100, and is defined as the first direction X. The horizontal direction from one side of the display device 100 to the other is the left-right direction, which is also the width direction of the display device 100, and is defined as the second direction Y. The vertical direction from the top to the bottom of the display device 100 is the up-down direction, which is also the height direction of the display device 100, and is defined as the third direction Z.

[0086] Please refer to the following: Figure 1 and Figure 2 In some embodiments, the display device 100 includes a display panel 10, which includes a display area and a non-display area. The display area is used to display images, and the non-display area is located on the outer periphery of the display area.

[0087] In some embodiments, the display device 100 includes a backlight module 20 located on the backlight side of the display panel 10.

[0088] In some embodiments, the backlight module 20 includes an optical component 21 and a back plate 22. The back plate 22 is the main support structure of the display device 100 and can be connected to the display panel 10 and the optical component 21 to provide support. When viewed from the front to the back of the display device 100, the display panel 10 is located in front of the optical component 21.

[0089] Optionally, the back plate 22 can be a metal plate, such as an iron plate, an aluminum alloy plate, or a magnesium alloy plate, so that the back plate 22 can have high structural strength when the thickness is relatively thin, and also has good bending performance to facilitate forming.

[0090] The optical component 21 includes a reflective sheet 211, a diffuser plate 212, and an optical film 213 arranged sequentially from back to front along the thickness direction of the display device 100. The optical film 213 may include multiple films, which may include a brightness enhancement film and multiple prism sheets, or multiple films may include multiple prism sheets.

[0091] In some embodiments, the backlight module 20 may further include a light source 23, the light emitted by the light source 23 being projected onto the display panel 10 by the optical component 21.

[0092] In one example, the light source 23 can be disposed on the side of the optical component 21 facing away from the display panel 10. In this example, a backlight cavity 221a is formed on the back plate 22, and the light source 23 is disposed in the backlight cavity 221a. The light emitted by the light source 23 is reflected by the reflector 211, passes through the diffuser 212 and the optical film 213 in sequence, and is transmitted to the display panel 10. The liquid crystal molecules in the front panel are deflected by the electric field, reducing the transmittance of the light emitted by the optical film 213 into the display panel 10, thereby projecting the light into filters of different colors to form an image.

[0093] In another example, the light source 23 can also be located on the side of the back panel 22, and the light refracted by the light guide plate passes through the display panel 10 to display the image.

[0094] For ease of understanding and explanation, the following embodiments of this application will be described using the structure of the back plate 22 having a backlight cavity 221a as an example.

[0095] Please refer to the following: Figures 3 to 5 In some embodiments, the backplate 22 includes a main body 221 configured to carry the optical assembly 21. The main body 221 may define a backlight cavity 221a in which the light source 23 is disposed.

[0096] In some embodiments, the back panel 22 includes a first bending structure 222, which is bent and connected to the edge of the main body 221 and extends along a first direction X. The first direction X is the thickness direction of the display device 100. That is, the first bending structure 222 bends from the edge of the main body 221 along the thickness direction of the display device 100.

[0097] In some embodiments, the back panel 22 includes a second bending structure 223, which is bent and connected to the end of the first bending structure 222 away from the main body 221, and the second bending structure 223 is located on the side of the first bending structure 222 closer to the optical component 21 (that is, the second bending structure 223 is closer to the middle of the back panel 22 than the first bending structure 222). The second bending structure 223 is configured to carry the display panel 10, and the second bending structure 223 has a first surface 223a and a second surface 223b that are opposite to each other along the first direction X.

[0098] In some embodiments, the main body 221 has a first side 22a and a second side 22b disposed opposite each other along a second direction Y, and a third side 22c and a fourth side 22d disposed opposite each other along a third direction Z. The third side 22c is configured as the top side of the back plate 22, and the fourth side 22d is configured as the bottom side of the back plate 22. The first side 22a, the second side 22b, and the third side 22c are all provided with a first bending structure 222 and a second bending structure 223, while the fourth side 22d is not provided with a first bending structure 222 and a second bending structure 223, so that an opening 22e is formed on the fourth side 22d, which allows the optical component 21 to be installed between the second bending structure 223 and the main body 221.

[0099] It can be understood that the second bending structure 223 bends from the end of the first bending structure 222 toward the inside of the first bending structure 222.

[0100] In the display device 100 provided in this application embodiment, the first side 22a and the second side 22b can be the left and right sides of the main body 221, respectively, and the third side 22c and the fourth side 22d can be the upper and lower sides of the main body plate, respectively. That is, the first bending structure 222 can be provided along the upper, left and right edges of the main body 221, while the first bending structure 222 is not provided on the bottom side of the main body 221, and an opening 22e is formed on that side for mounting the optical component 21.

[0101] Optionally, a frame (not shown) can be provided on the fourth side 22d of the back plate 22, and the bottom side of the display panel 10 is connected to the frame to ensure that the bottom side can provide sufficient load-bearing capacity and ensure the reliability of the overall structure of the display device 100. Of course, in some other embodiments, the fourth side 22d of the back plate 22 may not be provided with a frame, and a support structure such as a base or bracket may be used for support.

[0102] Continue reading Figure 5 In some embodiments, the display device 100 includes a first adhesive 30, which is bonded between the second bending structure 223 and the display panel 10.

[0103] The first adhesive member 30 has a third surface 30a and a fourth surface 30b arranged opposite to each other. The third surface 30a faces the first surface 223a, and the fourth surface 30b faces the display panel 10.

[0104] It should be noted that the first adhesive component 30 can be a double-sided adhesive component, such as double-sided foam tape, VHB (Very High Bond) double-sided adhesive foam strip, etc. Alternatively, it can be a single-sided adhesive component, such as single-sided foam tape, single-sided silicone pad, etc. This means that the first adhesive component 30 being bonded between the second bending structure 223 and the display panel 10 can refer to the following: both sides of the first adhesive component 30 are bonded to the second bending structure 223 and the display panel 10, respectively. That is, the first adhesive component 30 is a double-sided adhesive component, with the third side 30a of the first adhesive component 30 bonded to the second bending structure 223 and the fourth side 30b of the first adhesive component 30 bonded to the display panel 10. Alternatively, the side of the first adhesive component 30 closest to the second bending structure 223 is bonded to the second bending structure 223, and the side of the first adhesive component 30 away from the second bending structure 223 is attached to the display panel 10. That is, the first adhesive component 30 is a single-sided adhesive component, with the third side 30a of the first adhesive component 30 bonded to the second bending structure 223 and the fourth side 30b of the first adhesive component 30 attached to the display panel 10.

[0105] It is worth noting that when the first adhesive component 30 is a double-sided adhesive component, the display panel 10 can be fixed to the back plate 22 by adhesive. However, when the first adhesive component 30 is a single-sided adhesive component, it acts as a buffer, positioned between the second bending structure 223 and the display panel 10, to cushion the display panel 10 and prevent direct hard contact between it and the back plate 22. In this case, the display panel 10 can be fixed to the back plate 22 by pressing. Exemplarily, the display device 100 also includes a frame that presses against the edge of the display panel 10 to fix it to the back plate 22. The frame is provided on the top, left, and right sides of the display panel 10; the frame can be provided independently or integrally.

[0106] Combination Figure 4 and Figure 5 In some embodiments, a recessed portion 223c is provided on the first surface 223a, and the recessed portion 223c is recessed from the first surface 223a toward the second surface 223b to form a protrusion 223d on the second surface 223b.

[0107] The display device 100 provided in this application uses a second bending structure 223 as a component supporting the display panel 10. A first surface 223a serves as a supporting surface. By providing a recessed portion 223c that is recessed towards the second surface 223b on the supporting surface, and forming a protrusion 223d on the second surface 223b, an effect similar to a reinforcing rib is formed on the second bending structure 223, that is, the cross-sectional shape of the portion supporting the display panel 10 is changed. When the second bending structure 223 is subjected to pressure from the display panel 10 or external impact, the structure formed by the recessed portion 223c and the protrusion 223d can effectively suppress bending deformation caused by external force, thereby significantly improving the structural strength of the second bending structure 223, making the second bending structure 223 less prone to deformation, and thus making the installation of the display panel 10 more reliable.

[0108] Optionally, the recessed portion 223c and the raised portion 223d can be formed by stamping, which is simple to process, efficient, and suitable for mass production.

[0109] In some embodiments, the first adhesive member 30 is at least partially disposed in the recess 223c. That is, the first adhesive member 30, which is bonded to the second bending structure 223 and the display panel 10, is disposed in the recess 223c.

[0110] If the thickness of the first adhesive 30 is thin, the thin first adhesive 30 cannot compensate for the unevenness of the surface of the display panel 10 or the back plate 22, and cannot evenly distribute the force on the display panel 10, such as the force brought by the second bending structure 223 of the back plate 22 or the external pressing force, resulting in light leakage in the force-bearing area.

[0111] To solve the above problems, the first surface 223a serves as the supporting surface for the display panel 10. The recessed portion 223c is recessed from the first surface 223a to the second surface 223b, which increases the distance between the recessed portion 223c and the display panel 10. Combined with the arrangement of the first adhesive 30 between the second bending structure 223 and the display panel 10 located in the recessed portion 223c, a thicker first adhesive 30 can be used while keeping the distance between the display panel 10 and the optical component 21 unchanged. Since the thicker first adhesive 30 has higher compressibility and elasticity, it can absorb the local pressure of the display panel 10, making the display panel 10 bear force evenly. This can prevent light leakage in the pressure area of ​​the display panel 10, thereby solving the problem of pressure-induced light leakage of the display panel 10.

[0112] See Figure 6In some embodiments, the second bending structure 223 includes a first bending portion 2231, which is bent and connected to the end of the first bending structure 222 away from the main body portion 221, and extends along the first direction X toward the main body portion 221. That is, the first bending portion 2231 bends from the first bending structure 222 toward the main body portion 221.

[0113] Optionally, the first bent portion 2231 can be bent from the first bent structure 222 toward the main body 221, bent to be parallel to the first bent structure 222. That is, the first bent structure 222 and the first bent portion 2231 roughly form a U-shaped structure. In this example, the first bent portion 2231 can be fitted to the first bent structure 222, or the first bent portion 2231 can be spaced apart from the first bent structure 222. Alternatively, the first bent portion 2231 can be bent from the first bent structure 222 toward the main body 221, bent to be at an angle to the first bent structure 222. That is, the first bent portion 2231 can roughly form a V-shaped structure with the first bent structure 222.

[0114] In some embodiments, the second bending structure 223 includes a first support portion 2232, which is bent and connected to the first bending portion 2231. The first support portion 2232 is arranged parallel to at least a portion of the main body portion 221. The first support portion 2232 is configured to support the display panel 10. The first support portion 2232 has a first surface 223a and a second surface 223b.

[0115] It can be understood that by dividing the second bending structure 223 into a first bending portion 2231 and a first supporting portion 2232, the first bending portion 2231 bends from the end of the first bending structure 222 toward the main body 221, so that the first supporting portion 2232 is also positioned closer to the main body 221. Both the first bending portion 2231 and the first supporting portion 2232 utilize the thickness space of the first bending structure 222 along the first direction X. That is, the space between the first bending portion 2231 and the first supporting portion 2232 defines a space for mounting the display panel 10, while the space between the first supporting portion 2232, the first bending structure 222, and the main body 221 defines a space for mounting the optical component 21. Both of these spaces utilize the thickness space of the first bending structure 222 along the first direction X.

[0116] With this configuration, without changing the height of the first bending structure 222 along the first direction X, the display panel 10 does not occupy additional thickness space of the display device 100 along the first direction X, thus effectively reducing the overall thickness of the display panel 10 and the back plate 22, which is beneficial to reducing the overall thickness of the display device 100 and thus facilitating the thinner design of the display panel 10.

[0117] Continue reading Figure 5 In some embodiments, the distance between the display panel 10 and the optical component 21 is H1, where H1 ≥ 2 mm. For example, H1 can be 2 mm, 3 mm, or 4 mm, etc.

[0118] If the distance between the display panel 10 and the optical component 21 is less than 2mm, the display panel 10 and the optical component 21 are too close, and during assembly or when subjected to external force, the display panel 10 is prone to contact with the optical component 21, resulting in the optical component 21 being scratched or deformed. Therefore, by limiting the distance between the display panel 10 and the optical component 21 to no less than 2mm, it is possible to facilitate the installation of the optical component 21 and prevent the optical component 21 from being scratched.

[0119] In some embodiments, the distance between the display panel 10 and the optical component 21 is H1, where H1 ≤ 6 mm. For example, H1 can be 4.5 mm, 5 mm, or 6 mm, etc.

[0120] If the distance between the display panel 10 and the optical component 21 is greater than 6mm, the excessive distance will increase the overall thickness of the display device 100, which is detrimental to its thinness. Furthermore, an excessively large distance will also increase the propagation distance of light after it exits the optical component 21, potentially leading to light intensity attenuation and reduced display brightness. Therefore, by limiting the distance between the display panel 10 and the optical component 21 to no more than 6mm, the overall thickness of the display device 100 can be reduced, which is beneficial for the thinning effect of the display device 100.

[0121] In some embodiments, the distance between the display panel 10 and the optical component 21 is H1, where 2mm ≤ H1 ≤ 6mm.

[0122] By limiting the distance between the display panel 10 and the optical component 21 to a reasonable range, it is possible to prevent the optical component 21 from being scratched or deformed, while also preventing the display device 100 from being too thick, thereby facilitating the thinning of the display device 100.

[0123] Combination Figure 5 and Figure 6In some embodiments, the display device 100 further includes a second adhesive member 40, which is adhered to the protrusion 223d and a portion of the second adhesive member 40 is adhered to the second surface 223b. The second adhesive member 40 is spaced apart from the optical component 21 along the first direction X.

[0124] It is worth noting that when the second adhesive member 40 is bonded, it is not only bonded to the position of the protrusion 223d, but also extends to bond with the second surface 223b of the second bending structure 223. This allows the second adhesive member 40 to have a larger bonding area and ensures the reliability of the bonding.

[0125] By providing a second adhesive member 40 on the second surface 223b of the second bending structure 223, the second adhesive member 40 fills part of the space between the optical component 21 and the second bending structure 223, thereby reducing the movement gap of the optical component 21. This allows the optical component 21 to preferentially contact the second adhesive member 40 when subjected to external vibration. Since the second adhesive member 40 is usually a cushioning component such as foam, it can prevent contact damage to the optical component 21. For example, if there is a 2mm gap between the optical components 21, without the second adhesive member 40, the optical component 21 has a 2mm movement margin in the direction of the display panel 10. However, after providing the second adhesive member 40, the optical component 21 can be constrained to a certain extent, reducing the overall movement margin of the optical component 21. This makes it less likely for the optical component 21 to contact the display panel 10, preventing the optical component 21 from being scratched.

[0126] Meanwhile, by setting the second adhesive 40 at a distance from the optical component 21 along the first direction X, that is, by maintaining a certain gap between the second adhesive 40 and the optical component 21, it is possible to facilitate the installation of the optical component 21 and prevent the optical component 21 from wrinkling due to excessive constraint by the second adhesive 40 after installation, thereby ensuring the good performance of the optical component 21.

[0127] Furthermore, a protrusion 223d is formed on the second surface 223b, shortening the minimum distance between the second bent portion 511 and the optical component 21. Since the second adhesive 40 is attached to the protrusion 223d, a thinner second adhesive 40 can be used without changing the distance between the second adhesive 40 and the optical component 21. This reduces the material cost of the second adhesive 40 while preventing damage to the optical component 21. Therefore, the design of providing a recessed portion 223c on the first surface 223a facing the second surface 223b and forming a protrusion 223d on the second surface 223b increases the structural strength of the second bent structure 223, solves the problem of pressure-induced light leakage in the display panel 10, and reduces the material cost of the second adhesive 40.

[0128] Optionally, the second adhesive component 40 can be a single-sided foam tape or a single-sided silicone pad, or other structural components with a cushioning effect.

[0129] In some embodiments, the distance between the surface of the second adhesive 40 facing away from the second surface 223b and the optical component 21 is H2, where H2 ≤ 1 mm. For example, H2 can be 0.5 mm, 0.7 mm, or 1 mm, etc.

[0130] If the distance between the surface of the second adhesive 40 away from the second surface 223b and the optical component 21 is greater than 1mm, the second adhesive 40 will have limited constraint on the optical component 21. When the display device 100 is subjected to vibration or collision during transportation, the excessive distance may result in a large margin for the optical component 21 to move slightly in the direction of the display panel 10, making it easier for the optical component 21 to come into contact with the display panel 10 and cause wear between them, thereby causing the optical component 21 to be scratched.

[0131] Therefore, by limiting the distance between the surface of the second adhesive 40 facing away from the second surface 223b and the optical component 21 to no more than 1 mm, the movement gap of the optical component 21 when subjected to vibration can be effectively reduced, preventing the optical component 21 from contacting the display panel 10, thereby effectively reducing frictional damage to the optical component 21.

[0132] The spacing between the display panel 10 and the optical component 21, as well as the distance between the surface of the second adhesive 40 facing away from the second surface 223b and the optical component 21, are kept within a reasonable range. The thickness of the first adhesive 30 and the thickness of the second adhesive 40 will reasonably allocate the remaining space.

[0133] To make the thickness settings of the first adhesive element 30 and the second adhesive element 40 more reasonable, in some embodiments, the thickness of the first adhesive element 30 is no greater than 3 mm. For example, the thickness of the first adhesive element 30 can be 1.2 mm, 1.66 mm, or 2 mm, etc.

[0134] If the thickness of the first adhesive 30 is greater than 3mm, it means that the allowance for distributing the thickness of the second bending structure 223, the thickness of the second adhesive 40, and H1 between the display panel 10 and the optical component 21 will not exceed 3mm. This cannot effectively ensure that the second bending structure 223 has sufficient thickness to ensure structural strength, while also ensuring that the second adhesive 40 has a certain thickness to effectively buffer against minor movements of the optical component 21, and also ensuring that there is a certain gap between the second adhesive 40 and the optical component 21 for the installation of the optical component 21. In addition, if the thickness of the first adhesive 30 is too thick, the cohesive force of the adhesive layer will be insufficient, which may weaken the bonding strength. Therefore, by limiting the thickness of the first adhesive 30 to be not too thick, while ensuring that the first adhesive has sufficient thickness to solve the problem of compressive light leakage, the thickness of the first adhesive 30 can prevent excessive compression of the gap between the display panel 10 and the optical component 21, thus reserving reasonable allocation space for the second adhesive 40 and the gap between the second adhesive 40 and the optical component 21, and ensuring that the first adhesive 30 has sufficient adhesive strength.

[0135] In some embodiments, the thickness of the second adhesive 40 is not less than 0.2 mm. For example, the thickness of the second adhesive 40 can be 0.2 mm, 0.3 mm, or 0.5 mm, etc.

[0136] If the thickness of the second adhesive 40 is less than 0.2 mm, the thin second adhesive 40 cannot effectively absorb vibration and impact when subjected to vibration, and the optical component 21 is still prone to hard collisions. Therefore, by limiting the thickness of the optical second adhesive 40 to not less than 0.2 mm, the second adhesive 40 can effectively buffer the optical component 21 when it undergoes minor movements, thereby improving the safety of the optical component 21.

[0137] It is evident that by limiting the thickness of the first adhesive 30 to no more than 3 mm and the thickness of the second adhesive 40 to no less than 0.2 mm, the thickness of the first adhesive 30 can prevent excessive compression of the gap between the display panel 10 and the optical component 21. This allows for reasonable allocation space for the second adhesive 40 and the gap between the second adhesive 40 and the optical component 21, while also ensuring that the second adhesive 40 effectively buffers the optical component 21 when it undergoes minor movements, thereby improving the safety of the optical component 21.

[0138] Combination Figure 5 and Figure 6 In one example, the cross-sectional shape of the recess 223c is arc-shaped. That is, the bottom wall of the recess 223c is arc-shaped, and correspondingly, the bottom wall of the protrusion 223d is also arc-shaped. By making the recess 223c arc-shaped, stress concentration caused by sharp corners is avoided, and stress distribution can be made uniform.

[0139] like Figure 7 As shown, in another example, the recess 223c has a rectangular cross-sectional shape. That is, the recess 223c has two opposing inner sidewalls and an inner bottom wall connecting the two inner sidewalls, both of which are perpendicular to the inner bottom wall. Correspondingly, the protrusion 223d has two opposing outer sidewalls and an outer bottom wall connecting the two outer sidewalls, both of which are perpendicular to the outer bottom wall.

[0140] By setting the recess 223c as a rectangle, the processing is simple. With a certain maximum depth of the recess 223c, the first adhesive 30 can be accommodated in more of the recess 223c. That is, the filling rate of the first adhesive 30 is higher. The two sides of the recess 223c can position and constrain the first adhesive 30, and make the adhesion of the first adhesive 30 more reliable.

[0141] like Figure 8 As shown, in another example, the cross-sectional shape of the recess 223c is triangular. That is, the recess 223c has a first inclined wall and a second inclined wall that are inclined in opposite directions, and the first inclined wall and the second inclined wall are symmetrically arranged with respect to the connection.

[0142] By setting the recessed portion 223c as a triangle, a positioning point can be formed at the sharp corner when the first adhesive part 30 is pasted, making it easier for the first adhesive part 30 to be accurately aligned.

[0143] Combination Figure 9 In some embodiments, the second bending structure 223 further has a side surface 223e connected between the first surface 223a and the second surface 223b, the side surface 223e being arranged parallel to the first bending structure 222, and the recess 223c extending to the side surface 223e.

[0144] As a weak point that is prone to deformation due to external forces, the edge region is reinforced by extending the recess 223c to the side surface 223e. That is, the recess 223c is located at the edge of the second bending structure 223, which can disperse the edge stress and reduce the risk of edge warping.

[0145] Combination Figure 5 and Figure 8 In some embodiments, the first adhesive 30 has a third surface 30a facing the first surface 223a, and when the cross-sectional shape of the recess 223c is arc-shaped or triangular, the third surface 30a is configured to fit the shape of the recess 223c.

[0146] By configuring the shape of the third surface 30a of the first adhesive member 30 facing the first surface 223a to match the shape of the recess 223c, for example, when the cross-sectional shape of the recess 223c is arc-shaped, the third surface 30a is also arc-shaped, or when the cross-sectional shape of the recess 223c is triangular, the third surface 30a is also triangular. With this configuration, the bonding area between the first adhesive member 30 and the recess 223c can be increased without changing the width of the first adhesive, which is beneficial to increasing the reliability of the adhesive.

[0147] As described above, the back plate 22 is used not only to support the optical component 21, but also to support the display panel 10. Of course, in some embodiments, the back plate 22 may only be configured to support the optical component 21. In this case, the display device 100 may further include a middle frame 50, which is located on the outer periphery of the back plate 22. It can be understood that the middle frame 50 may be disposed on the first side 22a, the second side 22b, and the third side 22c of the back plate 22, and the middle frames 50 on these three sides may be integrally formed.

[0148] See Figure 10 In some embodiments, the middle frame 50 includes a connecting portion 51 and a second supporting portion 52. The connecting portion 51 is configured to be connected to the back plate 22. The second supporting portion 52 is bent and connected to one end of the connecting portion 51. The second supporting portion 52 is located on the side of the connecting portion 51 near the back plate 22. The second supporting portion 52 is configured to support the display panel 10. The second supporting portion 52 has a first surface 223a and a second surface 223b that are opposite to each other along a first direction X.

[0149] In some embodiments, the first adhesive 30 is bonded between the second carrier portion 52 and the display panel 10.

[0150] In some embodiments, a recessed portion 223c is provided on the first surface 223a. The recessed portion 223c is recessed from the first surface 223a toward the second surface 223b to form a protrusion 223d on the second surface 223b. The first adhesive 30 is located in the recessed portion 223c. The first direction X is the thickness direction of the display device 100.

[0151] The optical assembly 21 is supported by a back plate 22, and the display panel 10 is supported by a middle frame 50 on the outer periphery of the back plate 22. The middle frame 50 is used as an independent component, which can share the stress on the back plate 22 and reduce the risk of deformation of the back plate 22. Furthermore, the middle frame 50 and the back plate 22 are connected to form a double-layer support frame, which can significantly improve the structural rigidity of the display device 100.

[0152] Based on this, a recessed portion 223c is provided on the bearing surface of the recessed portion 223c on the middle frame 50, recessed towards the second surface 223b, and a protrusion 223d is formed on the second surface 223b, so that the second bearing portion 52 has an effect similar to a reinforcing rib, thereby improving the structural strength of the second bearing portion 52 and making the second bearing portion 52 less prone to deformation. At the same time, while keeping the distance between the display panel 10 and the optical component 21 unchanged, a thicker first adhesive 30 can be used to solve the problem of pressure-induced light leakage of the display panel 10.

[0153] In some embodiments, the backplate 22 includes a main body 221 and a first bending structure 222. The main body 221 is configured to carry the optical component 21, and the first bending structure 222 is bent and connected to the edge of the main body 221 and extends along a first direction X.

[0154] In some embodiments, the connecting portion 51 includes a second bend portion 511, which is disposed parallel to at least a portion of the main body portion 221 and connected to the main body portion 221.

[0155] In some embodiments, the connecting portion 51 includes a third bending portion 512, which is bent and connected to the second bending portion 511. The third bending portion 512 is located on the side of the first bending structure 222 away from the optical component 21 and is connected to the first bending structure 222. The second supporting portion 52 is bent and connected to the end of the third bending portion 512 away from the second bending portion 511. The second supporting portion 52 is arranged parallel to the second bending portion 511.

[0156] Of course, in other embodiments, the connecting part 51 may only include the third bending part 512, which is connected to the first bending structure 222 of the back plate 22, and can also satisfy the connection between the middle frame 50 and the back plate 22.

[0157] It is worth noting that when the middle frame 50 is used to support the display panel 10, apart from the different components used for support, the setting of the recessed portion 223c and the protruding portion 223d, as well as the setting of the first adhesive member 30 and the second adhesive member 40, are the same as the design in the aforementioned embodiment. For details, please refer to the description in the aforementioned embodiment, and we will not go into further detail here.

[0158] The display device disclosed in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the display device and its core ideas. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A display device, characterized in that, include: Display panel; Backlight module, the backlight module comprising: Optical components; Backplate, the backplate comprising: Main body, which is configured to carry the optical component; A first bending structure is bent and connected to the edge of the main body and extends along a first direction; The second bending structure is bent and connected to the end of the first bending structure away from the main body, and the second bending structure is located on the side of the first bending structure closer to the optical component. The second bending structure is configured to support the display panel, and the second bending structure has a first surface and a second surface opposite to each other along the first direction. A first adhesive component is bonded between the second bent structure and the display panel; The first surface has a recessed portion, which is recessed from the first surface to the second surface to form a protrusion on the second surface. The first adhesive is at least partially disposed in the recessed portion, and the first direction is the thickness direction of the display device.

2. The display device according to claim 1, characterized in that, The second bending structure includes: The first bend is connected to the end of the first bend structure away from the main body and extends in the first direction toward the main body. A first support portion is bent and connected to a first bend portion. The first support portion is arranged parallel to at least a portion of the main body portion. The first support portion is configured to support the display panel. The first support portion has a first surface and a second surface.

3. The display device according to claim 1, characterized in that, The distance between the display panel and the optical component is H1, where H1 ≥ 2 mm and / or H1 ≤ 6 mm.

4. The display device according to claim 1, characterized in that, The display device further includes: The second adhesive is bonded to the protrusion, and a portion of the second adhesive is bonded to the second surface. The second adhesive is spaced apart from the optical component along the first direction.

5. The display device according to claim 4, characterized in that, The distance between the surface of the second adhesive member facing away from the second surface and the optical component is H2, where H2 ≤ 1 mm.

6. The display device according to claim 5, characterized in that, The distance between the display panel and the optical component is H1, where H1 ≥ 2 mm and / or H1 ≤ 6 mm; The thickness of the first adhesive component is not greater than 3 mm, and the thickness of the second adhesive component is not less than 0.2 mm.

7. The display device according to any one of claims 1-6, characterized in that, The second bending structure also has a side surface connecting the first surface and the second surface, the side surface being arranged parallel to the first bending structure, and the recess extending to the side surface.

8. The display device according to any one of claims 1-6, characterized in that, The cross-sectional shape of the recess is arc-shaped, rectangular, or triangular.

9. The display device according to claim 8, characterized in that, The first adhesive has a third surface facing the first surface, and when the cross-sectional shape of the recess is arc-shaped or triangular, the third surface is configured to fit the shape of the recess.

10. A display device, characterized in that, include: Display panel; Backlight module, the backlight module comprising: Optical components; A backplate configured to support the optical components; The middle frame, located on the outer periphery of the back panel, includes: A connecting portion configured to connect to the back plate; A second support portion is bent and connected to one end of the connecting portion. The second support portion is located on the side of the connecting portion near the back plate. The second support portion is configured to support the display panel. The second support portion has a first surface and a second surface that are opposite to each other along a first direction. A first adhesive member is bonded between the second support portion and the display panel. The first surface has a recessed portion, which is recessed from the first surface to the second surface to form a protrusion on the second surface. The first adhesive is located in the recessed portion, and the first direction is the thickness direction of the display device.

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