Display device

Abstract

The application discloses a display device, comprising a display panel and a backlight module, the backlight module comprising a back plate, a light source, a diffusion plate and a diffusion plate support, the back plate having a mounting surface. The light source is fixed on the mounting surface of the back plate, the diffusion plate is located on the side of the display panel close to the mounting surface, the diffusion plate support is arranged between the back plate and the diffusion plate, and the diffusion plate support is configured to support the diffusion plate. The diffusion plate support comprises a base and a support structure, and the base is fixed on the mounting surface. The support structure comprises a reinforcing portion and a supporting portion, one end of the reinforcing portion is connected to the base, the supporting portion is connected to the other end of the reinforcing portion, the supporting portion is configured as a plate-shaped structure, the supporting portion is integrally arranged with the reinforcing portion, and the area of the connecting portion of the reinforcing portion and the base is larger than the area of the connecting portion of the supporting portion and the reinforcing portion. The display device disclosed by the application can make the support structure of the diffusion plate support have a larger stress area, improve the supporting strength of the support structure, and thus reduce the risk of fracture of the support structure.

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 and a backlight module. The backlight module typically includes a back plate, a light source, and a diffuser plate. The display panel is fixed to the back plate, and the light source and diffuser plate are both mounted on the back plate, with a certain backlight distance maintained between the light source and the diffuser plate.

[0003] In direct-lit backlighting displays, a diffuser support bracket is typically placed between the backplate and the diffuser to prevent the diffuser from collapsing. However, current diffuser support brackets are prone to breakage at the connection point with the base, resulting in insufficient support strength and affecting the reliability of the diffuser support bracket. Utility Model Content

[0004] This application discloses a display device that enables the diffuser plate bracket support structure to have a larger load-bearing area, improves the support strength of the support structure, and thus reduces the risk of support structure breakage.

[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] Back plate, the back plate having a mounting surface;

[0009] A light source, which is fixed to the mounting surface of the back plate;

[0010] A diffuser plate, the diffuser plate being located on the side of the display panel closest to the mounting surface;

[0011] A diffuser plate support is disposed between the back plate and the diffuser plate, and the diffuser plate support is configured to support the diffuser plate. The diffuser plate support includes:

[0012] A base, which is fixed to the mounting surface;

[0013] The support structure includes:

[0014] The reinforcing part, one end of which is connected to the base;

[0015] A support portion is connected to the other end of the reinforcing portion. The support portion is constructed as a plate-like structure. The support portion and the reinforcing portion are integrally formed. The area of ​​the connection between the reinforcing portion and the base is larger than the area of ​​the connection between the support portion and the reinforcing portion.

[0016] The display device provided in this application divides the support structure into a reinforcing part and a supporting part. The supporting part is connected to the base through the reinforcing part. As the part that contacts and supports the diffuser plate when it is subjected to external force, the supporting part is designed as a plate-like structure. When the diffuser plate is subjected to external force, the supporting part undergoes elastic deformation upon contact with the diffuser plate, providing elastic support for the diffuser plate. This allows the supporting part to absorb impact energy, preventing the diffuser plate from breaking due to rigid contact with the supporting part, thereby ensuring the display effect of the display device. Furthermore, the area at the connection between the reinforcing part and the base is set to be larger than the area at the connection between the supporting part and the reinforcing part, giving the reinforcing part a larger stress-bearing area. This makes the support structure less prone to breakage, providing greater bending resistance and improving the support strength of the diffuser plate bracket. Simultaneously, since the supporting part and the reinforcing part are integrally formed, material continuity is achieved between them. When force is transmitted from the supporting part to the reinforcing part, the force transmission is continuous, avoiding stress concentration and thus increasing the overall strength of the support structure.

[0017] As an optional implementation, the support portion is located in the middle of the reinforcing portion, and the support portion extends to the edge of the reinforcing portion on both sides along the first direction, so that a continuous transition surface is formed at the connection between the support portion and the reinforcing portion;

[0018] Wherein, the first direction is perpendicular to the thickness direction of the support portion.

[0019] The support portion extends to the edge of the reinforcing portion on both sides along the first direction (perpendicular to the thickness direction of the support portion), creating a continuous transition surface at the connection between the support portion and the reinforcing portion. On one hand, without changing the size of the reinforcing portion or the thickness of the support portion, the root size of the support portion can be maximized, resulting in a larger contact area between the support portion and the reinforcing portion. This improves the bending resistance of the support portion, thereby enhancing the overall structural strength of the diffuser plate support. On the other hand, the connection between the support portion and the reinforcing portion is not a step but a continuous whole, avoiding abrupt changes in the size and shape of the support structure. This allows force to be smoothly transferred from the support portion to the reinforcing portion, effectively preventing stress concentration.

[0020] As can be seen, this application addresses the weak point at the connection between the support structure and the base by structurally strengthening the root of the support structure. However, it also considers the potential for a new weak point at the connection between the plate-shaped support and the reinforcement. By integrating the support and reinforcement, the force transmission at their connection is continuous, thus reducing stress concentration to some extent. In other words, this application not only strengthens the root of the support structure but also considers the continuity of force between the reinforcement and the support. Furthermore, this application extends the support to the edge of the reinforcement, mitigating the impact of geometric abrupt changes at the connection between the support and the reinforcement, further reducing stress concentration.

[0021] As an alternative implementation, the reinforcing part is configured as a rotating body.

[0022] By constructing the reinforcing section as a body of revolution, meaning its outer circumference is a regular curved surface and the connection between the reinforcing section and the base is arc-shaped, the stress is smoothly distributed along the arc when force is transmitted from the support to the reinforcing section, which is more conducive to force dispersion and reduces stress concentration. Furthermore, compared to a structure where the connection between the reinforcing section and the base is straight, forming a body of revolution with the same connection length shortens the axial span of the reinforcing section. This allows for a more compact support structure with the same material length, reducing the space occupied by the support structure on the base and thus minimizing the impact of the support structure on light propagation.

[0023] Smooth curved surfaces, compared to multi-faceted structures, can reduce light scattering, thus improving the uniformity of backlighting.

[0024] In addition, the rotating body has axisymmetry, and since the support part is located in the middle of the reinforcement part, the force can be distributed more evenly, avoiding local stress concentration.

[0025] As an alternative implementation, the reinforcing part is configured as a frustum structure, and the outer diameter of the reinforcing part gradually decreases from the base to the diffuser plate.

[0026] The reinforcing section is constructed as a frustum, with its outer diameter gradually decreasing from the base to the diffuser plate. This results in a shape that is larger at the top and smaller at the bottom. Firstly, the beveled outer surface of the reinforcing section reduces light obstruction and minimizes its impact on the display effect. Secondly, without changing the contact area between the reinforcing section and the base, it reduces material usage while ensuring strong support.

[0027] As an alternative implementation, the dimension of the support portion gradually decreases along the first direction from the base to the diffuser plate;

[0028] The support portion has a first arcuate surface and a second arcuate surface that are opposite to each other along the first direction, and the first arcuate surface and the second arcuate surface are coplanar with the outer peripheral surface of the reinforcing portion.

[0029] Based on the truncated cone structure of the reinforcing part, the dimension of the supporting part gradually decreases along the first direction from the base to the diffuser plate, and the supporting part has an arc-shaped surface coplanar with the reinforcing part. That is, the supporting part is not independent; it can form part of the outer circumference of the reinforcing part. For example, a complete cone can be cut off from both sides by two planes parallel to the axis, and the remaining middle part becomes the supporting part, while the remaining bottom after cutting constitutes the reinforcing part. This arrangement makes the supporting part and the reinforcing part continuous, forming a continuous force path. Force can be continuously transmitted from the supporting part to the reinforcing part, minimizing stress concentration and greatly improving the overall structural strength of the supporting structure.

[0030] As an alternative implementation, the support portion has a first surface and a second surface opposite to each other along a second direction, the first surface being parallel to a third direction, and the second surface being inclined relative to the third direction, so that the thickness of the support portion gradually decreases from the base to the diffuser plate.

[0031] Wherein, the second direction is the thickness direction of the support portion, and the third direction is the thickness direction of the display device.

[0032] By setting the first surface of the support part vertically along the thickness direction and the second surface inclined, the thickness of the support part gradually decreases from the base to the diffuser plate. The vertical first surface can transmit the force more directly, and the force path is shorter and more direct, while the inclined second surface can play a role in tying and stabilizing. Under the premise of ensuring that the support part can deform elastically, the support part has a certain degree of support.

[0033] As an optional implementation, the angle between the second surface and the plane where the base is located is α1;

[0034] The reinforcing part is constructed as a frustum structure, and the angle between the generatrix of the reinforcing part and the plane of the base is α2.

[0035] In this case, α1 and α2 are equal.

[0036] When light emitted from the light source shines on the support structure, it will be partially blocked, potentially creating shadows on the diffuser plate. Since the support and reinforcement are two structurally different parts, light shining on them separately may create different shadows, affecting the uniformity of the display. Therefore, by setting the tilt angle of the second surface and the tilt angle of the generatrix of the reinforcement to be the same, the outer peripheral surface of the reinforcement and the second surface of the support can be made to roughly form a continuous optical plane. This ensures that the shadows formed after light shining on these two identical inclined surfaces are blocked have the same direction and gradation characteristics, making the shadow shape controllable and thus reducing its impact on the display effect.

[0037] As an optional implementation, both α1 and α2 are not greater than 95°.

[0038] If α1 is too large, the tilt angle of the second surface will be too large, resulting in an excessively thick support section. Conversely, if α2 is too large, the taper of the reinforcing section will be too large, leading to an excessively large outer diameter of the frustum-shaped reinforcing section. This, in turn, increases the overall size of the support structure, thus amplifying its impact on light propagation. Therefore, by limiting the reasonable range of α1 and α2, while ensuring controllable shadow formation due to light obstruction by the support structure, the degree of light obstruction by the support structure can be further reduced, resulting in a better display effect.

[0039] As an optional implementation, the height of the support structure along the third direction is H, and the height of the support part along the third direction is H1, satisfying: H1:H≥1:2, and / or, H1:H≤5:6;

[0040] Wherein, the third direction is the thickness direction of the display device.

[0041] If the H1:H ratio is too small, resulting in a low support height and an excessively high reinforcement height, the support will lack sufficient elasticity to effectively support the diffuser plate, potentially leading to breakage. Furthermore, the reinforcement will be too large, severely obstructing light and affecting optical performance.

[0042] If the H1:H ratio is too large, resulting in an excessively high support section and an excessively low reinforcing section, the force will be transferred to the reinforcing section within a short distance, causing significant stress and hindering its bending resistance. The support section will still face a high risk of breakage.

[0043] Therefore, by limiting H1:H within a reasonable range, the height of the support and the reinforcement can be reasonably distributed. This allows the support to provide elastic support for the diffuser plate and prevent the diffuser plate from breaking. At the same time, it also increases the support strength of the support structure, making it less prone to breakage.

[0044] As an optional implementation, the base has a positioning post on the side facing away from the support, and the mounting surface has a positioning hole corresponding to the positioning post. The positioning post passes through the positioning hole so that the base is connected to the back plate.

[0045] The diffuser plate bracket also includes an adhesive component, through which the base is fixed to the mounting surface.

[0046] In related technologies, a mounting method involves setting positioning posts on the back panel, positioning holes on the base, and fixing the base to the back panel using screws. To accommodate the screw length, the screws typically extend through the back panel to the backlight side, which can interfere with components such as circuit boards. Avoiding this interference increases the space required in the thickness direction of the display device, thus increasing its overall thickness. Therefore, this application sets positioning posts on the base, positions holes on the back panel, and uses adhesive bonding to fix the base. This significantly reduces the space requirements in the thickness direction of the display device, eliminates protrusions on the backlight side of the back panel, prevents interference with components such as circuit boards, and reduces the overall thickness of the display device. This facilitates thinner and lighter display devices and enhances their competitiveness in the ultra-thin display market.

[0047] Compared with the prior art, the beneficial effects of this application are:

[0048] The display device provided in this application divides the support structure into a reinforcing part and a supporting part. The supporting part is connected to the base through the reinforcing part. As the part that contacts and supports the diffuser plate when it is subjected to external force, the supporting part is designed as a plate-like structure. When the diffuser plate is subjected to external force, the supporting part undergoes elastic deformation upon contact with the diffuser plate, providing elastic support for the diffuser plate. This allows the supporting part to absorb impact energy, preventing the diffuser plate from breaking due to rigid contact with the supporting part, thereby ensuring the display effect of the display device. Furthermore, the area at the connection between the reinforcing part and the base is set to be larger than the area at the connection between the supporting part and the reinforcing part, giving the reinforcing part a larger stress-bearing area. This makes the support structure less prone to breakage, providing greater bending resistance and improving the support strength of the diffuser plate bracket. Simultaneously, since the supporting part and the reinforcing part are integrally formed, the material continuity between them is achieved. When force is transmitted from the supporting part to the reinforcing part, the force transmission is continuous, avoiding stress concentration and thus increasing the overall strength of the support structure. Attached Figure Description

[0049] 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.

[0050] Figure 1 This is a schematic diagram of the structure of the display device disclosed in this application;

[0051] Figure 2 This is a front view of the display device disclosed in this application;

[0052] Figure 3 This is an exploded view of the display device disclosed in this application;

[0053] Figure 4 for Figure 2 Sectional view at point AA;

[0054] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0055] Figure 6 This is a schematic diagram of the structure of the diffuser plate support disclosed in this application;

[0056] Figure 7 This is a structural schematic diagram of the diffuser plate support disclosed in this application from another angle;

[0057] Figure 8 This is a front view of the diffuser plate support disclosed in this application;

[0058] Figure 9 This is a side view of the diffuser plate support disclosed in this application;

[0059] Figure 10 This is a structural schematic diagram of the diffuser plate support disclosed in this application from another angle.

[0060] Explanation of reference numerals in the attached figures:

[0061] 1. Display device; 100. Display panel; 200. Backlight module; 10. Back plate; 10a. Mounting surface; 10b. Positioning hole; 20. Light source; 30. Diffuser plate; 40. Reflector sheet; 50. Diaphragm assembly; 60. Diffuser plate bracket; 61. Base; 61a. Positioning post; 62. Support structure; 621. Reinforcing part; 621a. Outer peripheral surface; 622. Support part; 622a. First arc-shaped surface; 622b. Second arc-shaped surface; 622c. First surface; 622d. Second surface; 70. Adhesive component; α1. Angle between the second surface and the plane of the base; α2. Angle between the generatrix of the reinforcing part and the plane of the base; H. Height of the support structure along a third direction; H1. Height of the support part along a third direction; X. First direction; Y. Second direction; Z. Third direction. Detailed Implementation

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (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, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0067] Display devices typically include a display panel and a backlight module. The backlight module typically includes a back plate, a light source, and a diffuser plate. The display panel is fixed to the back plate, and the light source and diffuser plate are both mounted on the back plate, with a certain backlight distance maintained between the light source and the diffuser plate.

[0068] In direct-lit backlighting displays, a diffuser support bracket is typically placed between the backplate and the diffuser to prevent the diffuser from collapsing. However, current diffuser support brackets are prone to breakage at the connection point with the base, resulting in insufficient support strength and affecting the reliability of the diffuser support bracket.

[0069] In related technologies, to improve the supporting strength of the supporting structure, reinforcing blocks are installed on both sides of the supporting structure. These reinforcing blocks are diagonally braced on both sides of the supporting structure to reinforce and support it, preventing deformation and insufficient strength. However, the connection between the reinforcing blocks and the supporting structure may become a new stress concentration point. The force transmitted to the reinforcing blocks is concentrated at this connection point, which can easily lead to cracks over long-term use.

[0070] Based on this, this application divides the support structure into a reinforcing section and a supporting section. The supporting section is connected to the base through the reinforcing section. The plate-like supporting section provides elastic support for the diffuser plate, allowing it to absorb impact energy and preventing the diffuser plate from breaking due to rigid contact with the supporting section, thus ensuring the display effect of the display device. Furthermore, the area at the connection between the reinforcing section and the base is set to be larger than the area at the connection between the supporting section and the reinforcing section, giving the reinforcing section a larger stress-bearing area. This makes the support structure less prone to breakage, providing greater bending resistance and improving the support strength of the diffuser plate bracket. Simultaneously, the supporting section and the reinforcing section are integrally designed, achieving material continuity. When force is transmitted from the supporting section to the reinforcing section, the force transmission is continuous, avoiding stress concentration and thus increasing the overall strength of the support structure.

[0071] The technical solution of this application will be further described below with reference to the embodiments and accompanying drawings.

[0072] See Figure 1 and Figure 2This application discloses a display device 1, which includes, but is not limited to, electronic display products such as televisions, computer monitors, and liquid crystal display panels 100, and can be widely used in places such as homes, offices, conference halls, exhibition halls, stations, hospitals, or shopping malls.

[0073] The display device 1 provided in this application embodiment can be a plate-like structure, such as a rectangular plate-like structure or a square plate-like structure. For ease of understanding, the following explanation and description will take a television set, in which the display device 1 is a rectangular plate-like structure, as an example.

[0074] With the display device 1 in its operational state as a reference, the direction facing the user is the front side, and the direction away from the user is the rear side. The front-rear direction is the thickness direction of the display device 1. The left-right direction, from one side of the display device 1 to the other, is the width direction of the display device 1. The vertical direction, from the top to the bottom of the display device 1, is the up-down direction, which is the height direction of the display device 1.

[0075] See Figures 1 to 3 In some embodiments, the display device 1 includes a display panel 100 for displaying images. The display panel 100 may include, but is not limited to, a liquid crystal display (LCD), an organic light-emitting diode (OLED), or other displays capable of displaying images. This application does not specifically limit the implementation of such displays.

[0076] In some embodiments, the display device 1 further includes a backlight module 200 disposed on the rear side of the display panel 100.

[0077] In some embodiments, the backlight module 200 may include a back plate 10 having a mounting surface 10a. It is understood that the mounting surface 10a is a surface close to the display panel 100 along the thickness direction of the display device.

[0078] Combination Figure 3 and Figure 4 In some embodiments, the backlight module 200 may include a light source 20, which is fixed to the mounting surface 10a of the backplate 10.

[0079] In some embodiments, the backlight module 200 may include a diffuser plate 30 located on the side of the display panel 100 near the mounting surface 10a. The diffuser plate 30 is spaced apart from the light source 20.

[0080] The backlight module 200 may further include a reflective sheet 40 and a diaphragm group 50, which are fixed on the back plate 10. The reflective sheet 40, diffuser plate 30, and diaphragm group 50 are arranged sequentially from back to front. The display panel 100 is located in front of the diaphragm group 50. The light emitted by the light source 20 is reflected by the reflective sheet 40 and then passes through the diffuser plate 30 and the diaphragm group 50 before reaching the display panel 100. The liquid crystal molecules in the front panel are deflected by the electric field, reducing the transmittance of the light emitted from the diaphragm group 50 to the display panel 100, thereby projecting the light into filters of different colors to form an image.

[0081] The diaphragm group 50 may include a light-enhancing film and multiple prism sheets, or may include multiple prism sheets.

[0082] In some embodiments, the backlight module 200 further includes a diffuser plate bracket 60 disposed between the back plate 10 and the diffuser plate 30. The diffuser plate bracket 60 is configured to support the diffuser plate 30 and prevent the diffuser plate 30 from being recessed toward the light source 20.

[0083] Optionally, the number of diffuser plate supports can be multiple, with multiple diffuser plate supports disposed between the back plate and the diffuser plate to provide support to various positions of the diffuser plate, effectively preventing the diffuser plate from collapsing and causing uneven display.

[0084] See Figures 5 to 7 In some embodiments, the diffuser plate support 60 includes a base 61, which is fixed to the mounting surface. The base 61 serves as the foundation of the entire diffuser plate support 60 and can be a plate-like structure, making it thinner and reducing its footprint in the backlight space. Optionally, the base 61 can be square, circular, or similar.

[0085] In some embodiments, the diffuser plate support 60 includes a support structure 62 for supporting the diffuser plate 30.

[0086] In some embodiments, the support structure 62 includes a reinforcing portion 621 and a supporting portion 622. One end of the reinforcing portion 621 is connected to the base 61, and the supporting portion 622 is connected to the other end of the reinforcing portion 621. The supporting portion 622 is connected to the base 61 through the reinforcing portion 621, and the supporting portion 622 is configured to contact the diffuser plate 30 when it is under force, so as to support the diffuser plate 30.

[0087] The support portion 622 is constructed as a plate-like structure, and the support portion 622 and the reinforcing portion 621 are integrally formed. The area of ​​the connection between the reinforcing portion 621 and the base 61 is larger than the area of ​​the connection between the support portion 622 and the reinforcing portion 621. In other words, the contact area between the reinforcing portion 621 and the base 61 is larger than the contact area between the support portion 622 and the reinforcing portion 621.

[0088] It is understandable that if the plate-shaped support 622 extends all the way to connect with the base 61, although it can satisfy the elastic support of the diffuser plate bracket 60, it will result in a small contact area between the support structure 62 and the base 61, which will easily cause stress concentration at the root, thus making the support structure 62 prone to breakage.

[0089] Based on this, the display device 1 provided in this application divides the support structure 62 into a reinforcing part 621 and a supporting part 622. The supporting part 622 is connected to the base 61 through the reinforcing part 621. The supporting part 622 is the part that contacts and supports the diffuser plate 30 when it is subjected to external force. The supporting part 622 is set as a plate-like structure. When the diffuser plate 30 is subjected to external force, the supporting part 622 will elastically deform upon contact with the diffuser plate 30, so that the supporting part 622 can provide elastic support for the diffuser plate 30. This allows the supporting part 622 to absorb impact energy and prevent the diffuser plate 30 from breaking due to rigid contact with the supporting part 622, thereby ensuring the display effect of the display device 1. Furthermore, the area of ​​the connection between the reinforcing part 621 and the base 61 is set to be larger than the area of ​​the connection between the supporting part 622 and the reinforcing part 621, so that the reinforcing part 621 has a larger stress-bearing area, making the support structure 62 less prone to breakage and providing greater bending resistance to the support structure 62, thereby improving the support strength of the diffuser plate bracket 60. Meanwhile, since the support part 622 and the reinforcing part 621 are integrated, the support part 622 and the reinforcing part 621 achieve material continuity. When the force is transmitted from the support part 622 to the reinforcing part 621, the force transmission is continuous, avoiding stress concentration, thereby making the overall strength of the support structure 62 higher.

[0090] It is understandable that the support part 622 and the reinforcing part 621 are integrated, that is, the two are a single structure, thus making the support structure 62 a single piece.

[0091] Alternatively, the base 61 and the reinforcing part 621 can also be integrated, making the diffuser plate support 60 a single structure.

[0092] In some embodiments, the connection between the reinforcing part 621 and the base 61 is rounded to further reduce stress concentration at the connection.

[0093] Combination Figure 8 In some embodiments, the support portion 622 is located in the middle of the reinforcing portion 621, and the support portion 622 extends to the edge of the reinforcing portion 621 on both sides along the first direction X, so that a continuous transition surface is formed at the connection between the support portion 622 and the reinforcing portion 621. The first direction X is perpendicular to the thickness direction of the support portion 622.

[0094] It should be noted that the continuous transition surface means that the connection between the reinforcing part 621 and the supporting part 622 is not a line, and there is no connection interface between the two.

[0095] The support portion 622 extends to the edge of the reinforcing portion 621 on both sides along the first direction X (perpendicular to the thickness direction of the support portion 622), forming a continuous transition surface at the connection between the support portion 622 and the reinforcing portion 621. On the one hand, without changing the size of the reinforcing portion 621 and the thickness of the support portion 622, the size of the root of the support portion 622 can be maximized, resulting in a larger contact area between the support portion 622 and the reinforcing portion 621. This is beneficial for improving the bending resistance of the support portion 622, thereby improving the overall structural strength of the diffuser plate bracket 60. On the other hand, the connection between the support portion 622 and the reinforcing portion 621 is not a step, but a continuous whole, avoiding abrupt changes in the size and shape of the support structure 62. This allows the force to be smoothly transferred from the support portion 622 to the reinforcing portion 621, effectively preventing stress concentration.

[0096] As can be seen, this application addresses the weak point at the connection between the support structure 62 and the base 61 by structurally reinforcing the root of the support structure 62. Furthermore, it considers the potential for a new weak point at the connection between the plate-shaped support portion 622 and the reinforcing portion 621. By integrating the support portion 622 and the reinforcing portion 621, the force transmission at their connection is continuous, thereby reducing stress concentration to some extent. In other words, this application not only strengthens the root of the support structure 62 but also considers the continuity of force between the reinforcing portion 621 and the support portion 622. Moreover, this application extends the support portion 622 to the edge of the reinforcing portion 621, mitigating the impact of geometrical abrupt changes at the connection between the support portion 622 and the reinforcing portion 621, further reducing stress concentration.

[0097] For example, two parts of material are cut off from both sides of the support structure 62 by a cutting process, and the remaining middle part is the support part 622, while the bottom part remaining after cutting constitutes the reinforcement part 621.

[0098] In some embodiments, the reinforcing part 621 is configured as a body of revolution. It can be understood that the body of revolution refers to a three-dimensional shape formed by rotating a plane around a fixed straight line (axis of rotation) within the plane, such as a cylinder or a frustum.

[0099] Optionally, the reinforcing part 621 can be a cylindrical structure, a frustum structure, etc. The following embodiments will explain the case where the reinforcing part 621 is a frustum structure.

[0100] By constructing the reinforcing part 621 as a body of revolution, that is, the outer peripheral surface 621a of the reinforcing part 621 is a regular curved surface, and the connection between the reinforcing part 621 and the base 61 is arc-shaped, when the force is transmitted from the supporting part 622 to the reinforcing part 621, the stress can be smoothly distributed along the arc gradient, which is more conducive to force dispersion and reduces stress concentration. At the same time, compared with the structure where the connection between the reinforcing part 621 and the base 61 is a straight line, when the reinforcing part 621 of the same connection length is formed into a body of revolution, the axial span of the reinforcing part 621 is shortened, so that the same material length can achieve a more compact support structure 62, reducing the space occupied by the support structure 62 on the base 61, thereby reducing the impact of the support structure 62 on light propagation.

[0101] Furthermore, the smooth curved surface reduces light scattering compared to a multi-faceted structure, thus improving the uniformity of backlighting. Additionally, the rotating body exhibits axial symmetry, and since the support portion 622 is located in the center of the reinforcing portion 621, the force can be distributed more evenly, avoiding localized stress concentration.

[0102] In some embodiments, the reinforcing part 621 is configured as a frustum structure, and the outer diameter of the reinforcing part 621 gradually decreases from the base 61 to the diffuser plate 30.

[0103] The reinforcing part 621 is constructed as a frustum structure, so that the outer diameter of the reinforcing part 621 gradually decreases from the base 61 to the diffuser plate 30. That is, the reinforcing part 621 is larger at the top and smaller at the bottom. On the one hand, the outer peripheral surface 621a of the reinforcing part 621 is a slope, which can reduce the obstruction of light and reduce the impact on the display effect. On the other hand, without changing the contact area between the reinforcing part 621 and the base 61, the amount of material used can be reduced while ensuring strong support.

[0104] In some embodiments, the dimension of the support portion 622 along the first direction X gradually decreases from the base 61 to the diffuser plate 30.

[0105] Understandably, the support part 622 has a roughly conical plate-like structure, which makes the support part 622 smaller in size, occupies less space, and can block less light. As a result, the area of ​​the shadow region of the diffuser plate bracket 60 on the diffuser plate 30 is smaller, and the impact on the display effect is also smaller.

[0106] See Figures 6 to 8 In some embodiments, the support portion 622 has a first arcuate surface 622a and a second arcuate surface 622b that are opposite to each other along a first direction X, and the first arcuate surface 622a and the second arcuate surface 622b are coplanar with the outer peripheral surface 621a of the reinforcing portion 621.

[0107] It is worth noting that the first arcuate surface 622a and the second arcuate surface 622b refer to the two opposite sides of the support portion 622. Since the reinforcing portion 621 has a frustum structure, its outer peripheral surface 621a is a conical surface. All three are coplanar, meaning that the first arcuate surface 622a, the second arcuate surface 622b, and the outer peripheral surface 621a all lie on the same curved surface. In other words, if the outer peripheral surface 621a of the reinforcing portion 621 is extended further, it will coincide with the first arcuate surface 622a and the second arcuate surface 622b. The first arcuate surface 622a, the second arcuate surface 622b, and the outer peripheral surface 621a of the reinforcing portion 621 together reconstruct a conical surface.

[0108] Based on the truncated cone structure of the reinforcing part 621, the supporting part 622 gradually decreases in size along the first direction X from the base 61 to the diffuser plate 30, and the supporting part 622 has an arcuate surface coplanar with the reinforcing part 621. That is, the supporting part 622 is not independent; it can form part of the outer peripheral surface 621a of the reinforcing part 621. For example, a complete cone can be cut off from both sides using two planes parallel to the axis, and the remaining middle part becomes the supporting part 622, while the remaining bottom after cutting constitutes the reinforcing part 621. This arrangement makes the supporting part 622 and the reinforcing part 621 continuous, forming a continuous force path. Force can be continuously transmitted from the supporting part 622 to the reinforcing part 621, minimizing stress concentration and greatly improving the overall structural strength of the supporting structure 62.

[0109] In this embodiment, the dimensions of the support structure 62 as a whole along the first direction X gradually change. Specifically, the dimensions gradually decrease from the base 61 toward the diffuser plate 30.

[0110] See Figure 9 In some embodiments, the support portion 622 has a first surface 622c and a second surface 622d opposite to each other along a second direction Y. The first surface 622c is parallel to a third direction Z, and the second surface 622d is inclined relative to the third direction Z, so that the thickness of the support portion 622 gradually decreases from the base 61 to the diffuser plate 30. Here, the second direction Y is the thickness direction of the support portion 622, and the third direction Z is the thickness direction of the display device 1.

[0111] By vertically arranging the first surface 622c of the support part 622 along the thickness direction and inclinedly arranging the second surface 622d, the thickness of the support part 622 gradually decreases from the base 61 to the diffuser plate 30. The vertical first surface 622c can transmit the force more directly, and the force path is shorter and more direct, while the inclined second surface 622d can play a role in tying and stabilizing. Under the premise of ensuring that the support part 622 can be elastically deformed, the support part 622 has a certain degree of support.

[0112] In some embodiments, the angle between the second surface 622d and the plane containing the base 61 is α1, the reinforcing part 621 is constructed as a frustum structure, and the angle between the generatrix of the reinforcing part 621 and the plane containing the base 61 is α2. Wherein, α1 and α2 are equal.

[0113] When light emitted from the light source shines on the support structure 62, it will be partially blocked, potentially creating a shadow on the diffuser plate 30. Since the support portion 622 and the reinforcing portion 621 are two structurally different parts, light shining on the support portion 622 and the reinforcing portion 621 respectively may create different shadows, affecting the uniformity of the display. Based on this, by setting the tilt angle of the second surface 622d and the tilt angle of the generatrix of the reinforcing portion 621 to be the same, the outer peripheral surface 621a of the reinforcing portion 621 and the second surface 622d of the support portion 622 can be made to form approximately a continuous optical plane. This ensures that the shadows formed after the light shining on these two identical inclined surfaces are blocked have the same direction and gradation characteristics, making the shadow shape controllable and thus reducing the impact on the display effect.

[0114] In some embodiments, both α1 and α2 are not greater than 95°. Optionally, α1 and α2 can be 92°, 93°, 94°, or 95°, etc.

[0115] If α1 is too large, the tilt angle of the second surface 622d will be too large, resulting in an excessively thick support portion 622. Conversely, if α2 is too large, the taper of the reinforcing portion 621 will be too large, leading to an excessively large outer diameter of the frustum-shaped reinforcing portion 621. This, in turn, increases the overall size of the support structure 62, thus increasing its impact on light propagation. Therefore, by limiting the reasonable range of α1 and α2, while ensuring that the shadows formed by the support structure 62 are controllable, the degree of light obstruction by the support structure 62 can be further reduced, resulting in a better display effect.

[0116] Continue reading Figure 9 In some embodiments, the height of the support structure 62 along the third direction Z is H, and the height of the support part 622 along the third direction Z is H1, satisfying: H1:H≥1:2.

[0117] If the H1:H ratio is too small, the height of the support portion 622 will be too low, while the height of the reinforcing portion 621 will be too high. This will result in insufficient elasticity of the support portion 622, making it unable to effectively provide elastic support for the diffuser plate 30, which could easily lead to the diffuser plate 30 breaking. Furthermore, it will result in an excessively large volume of the reinforcing portion 621, severely obstructing light and affecting optical performance. Therefore, by limiting the H1:H ratio to satisfy the above relationship, the support portion 622 can provide elastic support for the diffuser plate 30, preventing the diffuser plate 30 from breaking.

[0118] In some embodiments, the height of the support structure 62 along the third direction Z is H, and the height of the support part 622 along the third direction Z is H1, satisfying: H1:H≤5:6.

[0119] If the H1:H ratio is too large, resulting in an excessively high support portion 622 and an excessively low reinforcing portion 621, the force transmitted to the reinforcing portion 621 will undergo a directional change and transfer within a short distance, generating significant stress and failing to effectively resist bending. The support portion 622 will still face a significant risk of fracture. Therefore, by limiting the H1:H ratio to satisfy the aforementioned relationship, the support structure 62 can be made stronger, making it less prone to fracture.

[0120] In some embodiments, the height of the support structure 62 along the third direction Z is H, and the height of the support portion 622 along the third direction Z is H1, satisfying: 1:2 ≤ H1:H ≤ 5:6. Optionally, the ratio between H1 and H can be 1:2 ≤ H1:H ≤ 3:4, 2:3 ≤ H1:H ≤ 3:4, or 2:3 ≤ H1:H ≤ 5:6, etc. For example, H1:H can be 2:3, 3:4, or 5:6, etc.

[0121] By limiting H1:H within a reasonable range, the heights of the support portion 622 and the reinforcing portion 621 are reasonably distributed. This allows the support portion 622 to provide elastic support for the diffuser plate 30, preventing the diffuser plate 30 from breaking. At the same time, it also increases the support strength of the support structure 62, making it less prone to breakage.

[0122] For example, when the height H of the support structure 62 along the third direction Z is 12mm, the height H1 of the support portion 622 along the third direction Z can be 9mm, and the height of the reinforcing portion 621 along the third direction Z can be 3mm. Alternatively, the height H1 of the support portion 622 along the third direction Z can be 10mm, and the height of the reinforcing portion 621 along the third direction Z can be 2mm.

[0123] Combination Figure 4 and Figure 10 In some embodiments, a positioning post 61a is provided on the side of the base 61 away from the support part 622, and a positioning hole 10b corresponding to the positioning post 61a is provided on the mounting surface. The positioning post 61a passes through the positioning hole 10b so that the base 61 is connected to the back plate 10.

[0124] It is understandable that by using the positioning hole 10b and the positioning post 61a together, not only can the installation of the diffuser plate bracket 60 be positioned, but it can also play a limiting role, restricting the position of the base 61 on the plane of the back plate 10.

[0125] Optionally, there can be two positioning posts 61a, located on opposite sides of the support structure 62. The two positioning posts 61a can be positioned along the central axis of the base 61 along its length, ensuring the centered placement of the positioning posts 61a and guaranteeing the reliability of the diffuser plate bracket 60 installation. Furthermore, the two positioning posts 61a are positioned as close as possible to the edge of the base 61, ensuring a sufficiently large distance between them. This results in a smaller straight-line error defined by the two positioning posts 61a and more accurate positioning.

[0126] Optionally, the protrusion height of the positioning post 61a can be 0.5mm to 1.5mm, for example, the protrusion height of the positioning post 61a can be 0.8mm, 1mm or 1.2mm, etc.

[0127] See Figure 10 In some embodiments, the diffuser plate support 60 further includes an adhesive 70, through which the base 61 is fixed to the mounting surface. When the number of positioning posts 61a includes two, the adhesive 70 is located between the two positioning posts 61a.

[0128] In related technologies, the mounting method involves setting a positioning post 61a on the back plate 10, setting a positioning hole 10b on the base 61, and fixing the base 61 to the back plate 10 with screws. To accommodate the screw length, the screws typically extend through the back plate 10 to the backlight side, which can interfere with components such as circuit boards. To avoid this interference, the space required in the thickness direction of the display device 1 is increased, leading to an overall increase in the thickness of the display device 1. Therefore, this application sets a positioning post 61a on the base 61, sets a positioning hole 10b on the back plate 10, and uses adhesive bonding to fix the base 61. This significantly reduces the space requirements in the thickness direction of the display device 1, achieves a non-protruding backlight side of the back plate 10, avoids interference with components such as circuit boards, reduces the overall thickness of the display device 1, facilitates the thinning of the display device 1, and enhances its competitiveness in the ultra-thin device market.

[0129] 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: Back plate, the back plate having a mounting surface; A light source, which is fixed to the mounting surface of the back plate; A diffuser plate, the diffuser plate being located on the side of the display panel closer to the mounting surface; A diffuser plate support is disposed between the back plate and the diffuser plate, and the diffuser plate support is configured to support the diffuser plate. The diffuser plate support includes: A base, which is fixed to the mounting surface; The support structure includes: The reinforcing part, one end of which is connected to the base; A support portion is connected to the other end of the reinforcing portion. The support portion is constructed as a plate-like structure. The support portion and the reinforcing portion are integrally formed. The area of ​​the connection between the reinforcing portion and the base is larger than the area of ​​the connection between the support portion and the reinforcing portion.

2. The display device according to claim 1, characterized in that, The support portion is located in the middle of the reinforcing portion, and the support portion extends to the edge of the reinforcing portion on both sides along the first direction, so that a continuous transition surface is formed at the connection between the support portion and the reinforcing portion; Wherein, the first direction is perpendicular to the thickness direction of the support portion.

3. The display device according to claim 2, characterized in that, The reinforcing part is constructed as a rotating body.

4. The display device according to claim 3, characterized in that, The reinforcing part is constructed as a frustum structure, and the outer diameter of the reinforcing part gradually decreases from the base to the diffuser plate.

5. The display device according to claim 4, characterized in that, The dimension of the support portion gradually decreases along the first direction from the base to the diffuser plate; The support portion has a first arcuate surface and a second arcuate surface that are opposite to each other along the first direction, and the first arcuate surface and the second arcuate surface are coplanar with the outer peripheral surface of the reinforcing portion.

6. The display device according to claim 1, characterized in that, The support portion has a first surface and a second surface that are opposite to each other along a second direction. The first surface is parallel to the third direction, and the second surface is inclined relative to the third direction, so that the thickness of the support portion gradually decreases from the base to the diffuser plate. Wherein, the second direction is the thickness direction of the support portion, and the third direction is the thickness direction of the display device.

7. The display device according to claim 6, characterized in that, The angle between the second surface and the plane containing the base is α1; The reinforcing part is constructed as a frustum structure, and the angle between the generatrix of the reinforcing part and the plane of the base is α2. In this case, α1 and α2 are equal.

8. The display device according to claim 7, characterized in that, Both α1 and α2 are not greater than 95°.

9. The display device according to any one of claims 1-8, characterized in that, The height of the support structure along the third direction is H, and the height of the support part along the third direction is H1, satisfying: H1:H≥1:2, and / or, H1:H≤5:6; Wherein, the third direction is the thickness direction of the display device.

10. The display device according to any one of claims 1-8, characterized in that, The base has a positioning post on the side facing away from the support, and the mounting surface has a positioning hole corresponding to the positioning post. The positioning post passes through the positioning hole so that the base is connected to the back plate. The diffuser plate bracket also includes an adhesive component, and the base is fixed to the mounting surface by the adhesive component.

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