Display device

Abstract

The application discloses a display device, which comprises a liquid crystal panel and a backlight module. The backlight module is arranged on the light-entering side of the liquid crystal panel. The backlight module comprises a back plate, a light source, a diffusion plate and a diffusion plate support. The back plate is used for supporting the liquid crystal panel. The light source is arranged on the side of the back plate facing the liquid crystal panel. The diffusion plate is arranged on the side of the back plate facing the liquid crystal panel. The light source is located between the diffusion plate and the back plate. The diffusion plate is used for homogenizing the light provided by the light source. The diffusion plate support is used for supporting the diffusion plate. The back plate is provided with a through via. The diffusion plate support comprises a fixing part and a supporting part. The fixing part is arranged on the side of the back plate away from the diffusion plate. The supporting part is connected with the fixing part. The supporting part passes through the via on the back plate and is used for supporting the diffusion plate. The display device provided by the application can reduce the influence of the diffusion plate support on the light propagation of the light source, so that the display effect of the display device is improved and the picture quality of the display device is improved.

Description

Technical Field

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

[0002] Direct-lit backlight modules are widely used in LCD devices, especially in LCD TVs or large-sized LCD monitors, due to their ease of scaling up. However, since the LCD panels in LCD monitors are non-self-emissive, they require a backlight module. The backlight module mainly consists of a backplate, a backlight source, and a diffuser plate. The backlight source is mounted inside the backplate, and the diffuser plate is supported inside the backplate and covers the backlight source.

[0003] In direct-lit backlight modules, especially large-sized direct-lit backlight modules, a diffuser plate bracket is usually placed below the diffuser plate to support it. This prevents the diffuser plate and films from bending and deforming under gravity, thereby avoiding defects such as stripes or uneven diffusion in the LCD screen and ensuring the image quality of the LCD screen.

[0004] However, in direct-lit backlight modules in related technologies, the diffuser bracket can easily block the light emitted by the backlight on the back panel, affecting the propagation of light and thus the display effect of the LCD, affecting the picture quality. Utility Model Content

[0005] This application discloses a display device that can reduce the influence of the diffuser plate bracket on the light propagation of the light source, thereby improving the display effect and image quality of the display device.

[0006] To achieve the above objectives, this application discloses a display device, the display device comprising:

[0007] A liquid crystal panel, the liquid crystal panel being used to display image information; and,

[0008] A backlight module, disposed on the light-incident side of the liquid crystal panel, the backlight module being used to provide backlight for the liquid crystal panel, the backlight module comprising:

[0009] A backplate, which supports the liquid crystal panel;

[0010] A light source is disposed on the side of the back panel facing the liquid crystal panel;

[0011] A diffuser plate is disposed on the side of the back panel facing the liquid crystal panel, and the light source is located between the diffuser plate and the back panel. The diffuser plate is used to homogenize the light provided by the light source; and...

[0012] A diffuser plate bracket is disposed on the back plate and is used to support the diffuser plate;

[0013] The back plate is provided with a through hole, and the diffuser plate support includes:

[0014] A fixing part is provided on the side of the back plate facing away from the diffuser plate;

[0015] A support portion is connected to the fixing portion, and the support portion passes through the through hole on the back plate and is used to support the diffuser plate.

[0016] In the display device provided in this application embodiment, by providing a through hole in the back plate and fixing the fixing part of the diffuser plate bracket to the side of the back plate facing away from the diffuser plate, the supporting part of the diffuser plate bracket can pass through the back plate and be located on the side of the back plate facing the diffuser plate to support the diffuser plate. This allows the back plate and the diffuser plate to have only a supporting part and no fixing part, thus avoiding the fixing part from blocking the light emitted by the light source and affecting the light propagation path of the light source. This reduces the impact of the diffuser plate bracket on the light propagation of the light source, ensuring that the light source has a better light propagation path, thereby improving the display effect and screen quality of the display device.

[0017] As an optional implementation, in an embodiment of this application, the diffuser plate support further includes an elastic portion, and the support portion is connected to the fixing portion through the elastic portion. This allows the elastic portion to buffer external forces acting on the diffuser plate, reducing damage to the diffuser plate caused by the diffuser plate support.

[0018] Specifically, when the diffuser plate is subjected to impact or pressure, the support portion acts on the elastic portion, causing the elastic portion to deform, thereby buffering the impact and reducing the force between the diffuser plate and the support portion. This reduces the probability of damage to the diffuser plate and the LCD panel, ensuring stable display quality and reducing the scrap rate. At the same time, since the elastic portion can quickly return to its original shape after the impact or pressure disappears, it also ensures the stability of the diffuser plate position, keeping the light source brightness constant, thus guaranteeing the display effect and image quality of the LCD panel.

[0019] As an optional implementation, in an embodiment of this application, the elastic portion is located on the side of the back plate facing away from the diffuser plate, and the elastic portion has a first end and a second end opposite to each other along its length direction. The first end is connected to the fixing portion, and the second end is connected to the support portion. The length direction of the elastic portion intersects with the direction in which the support portion protrudes relative to the back plate.

[0020] This configuration allows the support and elastic parts to be angled, for example, approximately 90° apart. One end of the elastic part (i.e., the first end) is fixed, while the other end (i.e., the second end) is free. The second end is not fixed, and the elastic part forms a cantilever structure. The support part is located on the free end of the elastic part. Thus, when the diffuser plate is subjected to impact or pressure, the support part acts on the second end of the elastic part, allowing the elastic part to swing relative to the fixed part with its first end as the fulcrum. This structural design makes the elastic part more easily deformed under stress, thereby better buffering the external forces on the diffuser plate and greatly reducing the damage caused to the diffuser plate by the diffuser plate support.

[0021] As an optional implementation, in the embodiments of this application, the length direction of the fixing part intersects the length direction of the elastic part, and the size of the fixing part is larger than the size of the elastic part in the length direction of the fixing part.

[0022] Compared to a method where the size of the fixing part is equal to the size of the elastic part along the length of the fixing part, by making the size of the fixing part larger than the size of the elastic part along the length of the fixing part, the contact area between the fixing part and the back plate can be increased, thereby improving the connection reliability between the fixing part and the back plate.

[0023] As an optional implementation, in an embodiment of this application, the fixing part is provided with a groove, the groove opening direction extends along the length direction of the elastic part, and the groove penetrates the fixing part in the direction in which the supporting part protrudes relative to the back plate;

[0024] The first end of the elastic part is located in the groove and is connected to the bottom surface of the groove.

[0025] This design ensures a large contact area between the fixing part and the back plate, improving the connection reliability between them; it also allows the elastic part to have a longer swing arm, making it easier to deform under stress, thus better buffering the external forces on the diffuser plate and greatly reducing the damage to the diffuser plate caused by the diffuser plate support.

[0026] As an optional implementation, in the embodiments of this application, the fixing part is an elastic structure, and the fixing part has a fixed end and a non-fixed end opposite to each other along its length direction. The fixed end is fixed to the back plate, and the non-fixed end is connected to the support part.

[0027] Because the fixing part is an elastic structure, and one end of the fixing part (i.e., the fixed end) is fixed while the other end is a free end (i.e., the non-fixed end), the support part is set on the free end of the fixing part. Thus, when the diffuser plate is impacted or subjected to pressure, the support part acts on the non-fixed end of the fixing part, causing the fixing part to deform, thereby buffering the impact and reducing the force between the diffuser plate and the support part. This reduces the probability of damage to the diffuser plate and the liquid crystal panel, ensuring stable display quality of the liquid crystal panel and reducing the scrap rate. At the same time, since the fixing part can quickly return to its original shape after the impact or pressure disappears, it can also ensure the stability of the diffuser plate position, keeping the light source brightness unchanged, thereby ensuring the display effect and image quality of the liquid crystal panel.

[0028] In addition, since one end of the fixing part is fixed and the other end is free, the fixing part forms a cantilever structure. When the diffuser plate is impacted or subjected to pressure, the fixing part can swing relative to the back plate with its fixed end as the fulcrum. The fixing part is more likely to deform under force, thereby better buffering the external force on the diffuser plate and greatly reducing the damage to the diffuser plate caused by the diffuser plate support.

[0029] As an optional implementation, in the embodiments of this application, the support portion is an elastic structure.

[0030] Therefore, when the diffuser plate is subjected to impact or pressure, the support can deform to buffer the impact and reduce the force between the diffuser plate and the support, thereby reducing the probability of damage to the diffuser plate and the LCD panel, so as to keep the display quality of the LCD panel stable and reduce the scrap rate. At the same time, since the support can quickly return to its original shape after the impact or pressure disappears, it can also ensure the stability of the diffuser plate position and keep the light source brightness unchanged, thus ensuring the display effect and image quality of the LCD panel.

[0031] As an optional implementation, in the embodiments of this application, the direction in which the support portion protrudes relative to the back plate is the protrusion direction, and the plane perpendicular to the protrusion direction is the first plane;

[0032] In the protruding direction, the cross-sectional area of ​​the support portion intercepted by the first plane is reduced.

[0033] This configuration ensures a large connection area between the support and the fixing parts, improving the reliability of their connection and allowing the support to stably support the diffuser plate, thus reducing the deformation of the diffuser plate under gravity. It also allows the end of the support near the diffuser plate to be smaller, reducing the impact of the support on the propagation of light from the light source, thereby improving the display effect and image quality of the display device.

[0034] As an optional implementation, in the embodiments of this application, the support portion is a sheet-like structure, and the shape of the support portion is triangular or trapezoidal; or,

[0035] The support part has a conical structure.

[0036] This configuration utilizes the stability of a triangle to provide stable support for the diffuser plate, reducing the deformation caused by bending under gravity. It also allows the end of the support closer to the diffuser plate to be smaller, minimizing its impact on the propagation of light from the light source. This, in turn, improves the display effect and image quality of the display device.

[0037] As an optional implementation, in the embodiments of this application, the material of the support portion is white or transparent.

[0038] By using a white or transparent material for the support, the light emitted by the light source can be prevented from being blocked or absorbed, thereby improving the light output efficiency and thus improving the display brightness and display effect of the display device. Attached Figure Description

[0039] 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.

[0040] Figure 1 This is a schematic diagram of the structure of a display device in the related art;

[0041] Figure 2 This is a schematic diagram of the structure of the display device disclosed in the embodiments of this application;

[0042] Figure 3 This is a front view of the display device disclosed in the embodiments of this application;

[0043] Figure 4 The display device disclosed in the embodiments of this application is along Figure 3 A cross-sectional view along the AA direction;

[0044] Figure 5 This is a schematic diagram of the first structure of the backlight module disclosed in the embodiments of this application;

[0045] Figure 6 This is a schematic diagram of the second structure of the backlight module disclosed in the embodiments of this application;

[0046] Figure 7This is a schematic diagram of the third structure of the backlight module disclosed in the embodiments of this application;

[0047] Figure 8 This is a schematic diagram of the first structure between diffusion plates disclosed in the embodiments of this application;

[0048] Figure 9 This is a schematic diagram of a second structure between diffusion plates disclosed in an embodiment of this application;

[0049] Figure 10 The display device along the diffuser plate when it is not under stress, as disclosed in the embodiments of this application. Figure 3 A cross-sectional view along the BB direction in the middle;

[0050] Figure 11 The display device along the diffuser plate when subjected to external force, as disclosed in the embodiments of this application. Figure 3 A cross-sectional view along the BB direction.

[0051] Explanation of main figure symbols

[0052] 1a - Mounting plate;

[0053] 100 - Display device; 11 - Liquid crystal panel; 12 - Backlight module; 121 - Back plate; 1211 - Via; 122 - Light source; 1221 - Light-emitting device; 1222 - Strip circuit board; 123 - Diffuser plate; 124 - Reflective sheet; 125 - Optical film; 126 - Diffuser plate bracket; 1261 - Fixing part; 1261a - Fixing end; 1261b - Non-fixing end; 12611 - First fixing hole; 12612 - Groove; 1262 - Support part; 1263 - Elastic part; 1263a - First end; 1263b - Second end; 13 - Screw. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of this application clearer, the exemplary embodiments of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments. Obviously, the described exemplary embodiments are only some embodiments of this application, and not all embodiments. That is, the specific embodiments described herein are merely used to explain this application and are not intended to limit this application.

[0055] It should be noted that the brief descriptions of terminology used in this application are merely for the purpose of facilitating understanding of the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to limit this application.

[0056] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0057] The terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first end may be referred to as a second end, and similarly, a second end may be referred to as a first end. Both the first end and the second end are ends of a component, but they are not the same end.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0059] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0060] In the description of this application, it should be noted that the singular forms of "a," "an," and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that terms such as "comprising / including" or "having" specify the presence of the stated features, integrals, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, integrals, steps, operations, components, parts, or combinations thereof.

[0061] In addition, the term "and / or" as used in this specification includes any and all combinations of the related listed items. For example, A and / or B can mean: A alone, A and B together, or B alone. That is, the term "and / or" as used in this specification includes any and all combinations of the related listed items.

[0062] With the rapid advancement of liquid crystal display (LCD) manufacturing technology and its advantages such as low power consumption, thinness, and low radiation, LCDs are widely used in various electronic products such as laptops, digital cameras, digital camcorders, mobile phones, computer screens, and LCD TVs. However, because the liquid crystal panel in an LCD is a non-self-emissive display panel, it requires a backlight module to provide a light source to produce a display function.

[0063] The backlight module mainly includes a back panel, a backlight source, and a diffuser plate. The backlight source is installed inside the back panel, and the diffuser plate is supported inside the back panel and covers the backlight source.

[0064] Currently, commonly used backlight modules include edge-lit backlight modules and direct-lit backlight modules. Among them, direct-lit backlight modules are widely used in LCD displays, especially in LCD TVs or larger LCD monitors, because they are easy to scale up.

[0065] In direct-lit backlight modules, especially large-sized direct-lit backlight modules, a diffuser plate bracket is usually placed below the diffuser plate to support it. This prevents the diffuser plate and films from bending and deforming under gravity, thereby avoiding defects such as stripes or uneven diffusion in the LCD screen and ensuring the image quality of the LCD screen.

[0066] However, in direct-lit backlight modules in related technologies, the diffuser bracket is usually fixed to the side of the back panel facing the diffuser. This makes it easy for the diffuser bracket to block the light emitted by the backlight on the back panel, affecting the propagation of light and thus the display effect of the LCD and the picture quality.

[0067] To overcome the above problems, such as Figure 1As shown, the applicant attempts to fix the light source 122 to the back plate 121 via the mounting plate 1a to increase the height of the light source 122, thereby reducing the influence of the fixing part 1261 of the diffuser plate bracket 126 on the light propagation of the light source 122. However, since it is necessary to control the distance between the light source 122 and the diffuser plate 123 to avoid them being too close, an aluminum plate is usually used as the mounting plate 1a so that the thickness of the mounting plate 1a can be relatively thin. Typically, the thickness of the mounting plate 1a is 0.6mm-0.8mm. To save costs, the fixing part 1261 of the diffuser plate bracket 126 is usually an injection molded part made of plastic, silicone, rubber, etc. However, due to the limitations of the injection molding process, the maximum thickness of the fixing part 1261 can only be 1.2mm. That is, the minimum thickness of the fixing part 1261 is 1.2mm. The thickness of the fixing part 1261 is thicker than the thickness of the mounting plate 1a, which means that the diffuser plate bracket 126 will still block the light emitted by the light source 122, affecting the propagation of the light and thus the display effect of the liquid crystal display, affecting the picture quality.

[0068] In view of this, embodiments of this application provide a display device that can reduce the impact of the diffuser bracket on the light propagation of the backlight while taking into account low cost.

[0069] The technical solutions of some 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.

[0070] Please see Figure 2 , Figure 2 This is an exemplary structural diagram of a display device provided in an embodiment of this application. The display device 100 provided in this embodiment can be a television set or a computer monitor, etc.

[0071] like Figure 2 As shown, the display device 100 provided in this application embodiment includes a liquid crystal panel 11, which may be, for example, a liquid crystal display (LCD) and is used to display image information.

[0072] For example, the liquid crystal panel 11 can typically be configured as a rectangle, a square, etc. When the liquid crystal panel 11 is applied to an irregularly shaped display device, its shape adapts to the shape of the display device.

[0073] In some embodiments, such as Figure 3 and Figure 4As shown, the display device 100 provided in this application embodiment also includes a backlight module 12, which is disposed on the light-incident side of the liquid crystal panel 11. The backlight module 12 is used to provide backlight for the liquid crystal panel 11 so that the liquid crystal panel 11 displays images.

[0074] Understandably, the side of the liquid crystal panel 11 used for displaying images is the display side of the liquid crystal panel 11, that is, the front side of the liquid crystal panel 11, while the side opposite to the display side is the light-incident side of the liquid crystal panel 11, that is, the back side of the liquid crystal panel 11. The backlight module 12 is located on the light-incident side of the liquid crystal panel 11. The brightness and light source provided by the backlight module 12 are emitted from the light-incident side of the liquid crystal panel 11 and enter the liquid crystal panel 11 to enable the liquid crystal panel 11 to display images.

[0075] Optionally, the shape and size of the backlight module 12 are adapted to the shape and size of the liquid crystal panel 11. When applied to fields such as televisions or computer displays, the backlight module 12 and the liquid crystal panel 11 are typically rectangular in shape.

[0076] In some embodiments, the backlight module 12 includes a back plate 121, which supports the liquid crystal panel 11 to ensure the stability of the liquid crystal panel 11 and to a certain extent protects the liquid crystal panel 11.

[0077] In some embodiments, the backlight module 12 includes a light source 122, which is disposed on the side of the backplate 121 facing the liquid crystal panel 11, and the light source 122 is used to emit light to provide light for the display module.

[0078] In some embodiments, the backplate 121 may be made of aluminum, iron, aluminum alloy or iron alloy, thereby enabling the backplate 121 to dissipate heat from the light source 122.

[0079] As one example, such as Figure 5 As shown, the light source 122 may include multiple light-emitting devices 1221. These devices 1221 are arranged in a uniform and spaced array along the length and width directions of the back plate 121, thereby enabling the light source 122 to illuminate various areas of the liquid crystal panel 11 relatively uniformly. The length direction of the back plate 121 may be... Figure 5 In the x-axis direction, the width direction of the back plate 121 can be... Figure 5 The y-axis direction in the diagram.

[0080] Optionally, each light-emitting device 1221 can be fixed to the back plate 121 by screws or other connectors, or each light-emitting device 1221 can be glued to the back plate 121.

[0081] As another embodiment, such as Figure 6 and Figure 7 As shown, the light source 122 can be a plurality of parallel light strips arranged at intervals along the first direction. Each light strip typically includes a strip circuit board 1222 and a row of light-emitting devices 1221 disposed on the strip circuit board 1222. Each strip circuit board 1222 can extend along the second direction, and the plurality of light strips can be evenly arranged on the back plate 121 along the first direction, thereby enabling the light source 122 to illuminate each area of ​​the liquid crystal panel 11 more evenly.

[0082] Wherein, one of the first direction and the second direction is the length direction of the back plate 121 (e.g. Figure 6 and Figure 7 The x-axis direction in the first direction and the second direction is the width direction of the back plate 121 (e.g., the x-axis direction in the first direction and the width direction of the second direction). Figure 6 and Figure 7 (y-axis direction in the image).

[0083] Alternatively, the light strip can be fixed to the back plate 121 by screws or other connectors, or the light strip can be pasted onto the back plate 121.

[0084] As another embodiment, the light source 122 can also be a lamp board, which includes a plate-shaped circuit board and a plurality of light-emitting devices 1221 disposed on the plate-shaped circuit board. The plurality of light-emitting devices 1221 can be arranged in an array at uniform intervals along the length and width directions of the plate-shaped circuit board, thereby enabling the light source 122 to illuminate each area of ​​the liquid crystal panel 11 more uniformly.

[0085] Optionally, the shape and size of the light panel are adapted to the shape and size of the back panel 121, with the length of the light panel extending along the length of the back panel 121 and the width of the light panel extending along the width of the back panel 121. Typically, when applied to fields such as television sets or computer displays, the light panel can be square or rectangular. When applied to irregularly shaped display devices 100, its shape and size are adapted to the shape and size of the display devices 100.

[0086] For example, the light-emitting device 1221 can be an LED (Light Emitting Diode), a Mini-LED (Mini-Light Emitting Diode), or a Micro-LED (Micro-Light Emitting Diode). For instance, Mini-LEDs are used because they have advantages such as small size and high brightness. More light-emitting devices 1221 can be placed on the same area of ​​the lamp panel or strip, providing higher backlight brightness and more refined zone control effects. Other types of light-emitting devices 1221 can also be used when applied to different display devices 100 and according to different usage requirements; this is not limited here.

[0087] In some embodiments, such as Figure 4 As shown, the backlight module 12 includes a diffuser plate 123, which is disposed on the side of the back plate 121 facing the liquid crystal panel 11. The light source 122 is located between the diffuser plate 123 and the back plate 121. The diffuser plate 123 is used to homogenize the light provided by the light source 122.

[0088] Specifically, since the diffuser plate 123 can diffuse the incident light, the outgoing light from the light source 122 is fully mixed, making the outgoing light after passing through the diffuser plate 123 more uniform.

[0089] For example, the diffuser plate 123 is provided with scattering particle material. When light is incident on the scattering particle material, it will be continuously refracted and reflected, thereby achieving the effect of scattering the light and realizing the function of uniform light.

[0090] In some embodiments, such as Figure 4 As shown, the backlight module 12 includes a reflective sheet 124, which is stacked on the back plate 121 to reflect the light emitted by the light source 122 onto the diffuser plate 123.

[0091] For example, the reflective sheet 124 can be pasted onto the back plate 121, or the reflective sheet 124 can be fixed to the back plate 121 by screws or the like, or the reflective sheet 124 can be set onto the back plate 121 by a snap-fit ​​connection. The specific choice can be made according to the actual situation, and this application does not make any specific limitation.

[0092] In some specific applications, the reflector 124 and multiple light-emitting devices 1221 are directly mounted on the back plate 121. Small holes can be opened on the reflector 124 at the positions corresponding to the light-emitting devices 1221. After the reflector 124 is mounted on the back plate 121, the light-emitting devices 1221 pass through the small holes on the reflector 124. For each light-emitting device 1221, the reflector 124 is sleeved around the light-emitting device 1221.

[0093] It should be noted that the light emitted by the light source 122 radiates to its surroundings, and most of the light will illuminate the diffuser plate 123. However, a small portion of the light has an incident angle that deviates from the diffuser plate 123 and will illuminate the back plate 121. In order to improve the light efficiency of the light source 122, a reflector 124 is stacked on the back plate 121. The light emitted by the light source 122 towards the back plate 121 illuminates the reflector 124 and then illuminates the diffuser plate 123 after being reflected by the reflector 124. In this way, most of the light emitted by the light source 122 can illuminate the diffuser plate 123, and the backlight module 12 has higher light efficiency.

[0094] That is, the light emitted by the light source 122 and the light reflected by the reflector 124 illuminate the diffuser plate 123, so that the light emitted by the backlight 122 can be diffused to each area of ​​the liquid crystal panel 11 by the diffuser plate 123, thus providing a more uniform light source 122 for the liquid crystal panel 11.

[0095] In some embodiments, such as Figure 4 As shown, the backlight module 12 includes an optical film 125, which is disposed between the liquid crystal panel 11 and the diffuser plate 123. The optical film 125 allows the backlight module 12 to be adapted to a variety of practical applications.

[0096] Optionally, the optical film 125 may include one or more combinations of fluorescent films, prism films, and brightness enhancement films, depending on specific needs, and is not limited here.

[0097] For example, the optical film 125 may include multiple functional films, such as prism film and polarizer. By setting the optical film 125, the angular distribution of light in the backlight module 12 can be improved, the axial brightness of the backlight module 12 can be increased, the total light output flux can be increased, and sufficient brightness can be provided for the liquid crystal panel 11.

[0098] In some embodiments, the optical diaphragm 125 can be fixed to the diffuser plate 123 by double-sided adhesive. Of course, in other embodiments, the optical diaphragm 125 can also be fixed to the diffuser plate 123 by other fixing methods, which are not limited here.

[0099] In some embodiments, such as Figure 4 As shown, the backlight module 12 includes a diffuser plate bracket 126 and a diffuser plate 123 bracket disposed on the back plate 121. The diffuser plate bracket 126 is used to support the diffuser plate 123, so as to prevent the diffuser plate 123 and the optical film 125 from bending and deforming under the action of gravity, thereby avoiding stripes or uneven diffusion in the LCD screen and ensuring the screen quality of the LCD.

[0100] Optionally, there can be multiple diffuser plate supports 126, which can be distributed on the back plate 121. Thus, when the diffuser plate 123 is subjected to external force, the force on the diffuser plate 123 will be distributed to each diffuser plate support 126, thereby effectively reducing the external force on the diffuser plate 123.

[0101] In some embodiments, such as Figure 4 and Figure 5As shown, the back plate 121 is provided with a through hole 1211, and the diffuser plate bracket 126 includes a fixing part 1261 and a supporting part 1262. The fixing part 1261 is provided on the side of the back plate 121 facing away from the diffuser plate 123, and the supporting part 1262 is connected to the fixing part 1261. The supporting part 1262 passes through the through hole 1211 on the back plate 121 and is used to support the diffuser plate 123.

[0102] In the above design, a through hole 1211 is provided in the back plate 121, and the fixing part 1261 of the diffuser plate bracket 126 is fixedly installed on the side of the back plate 121 facing away from the diffuser plate 123. The through hole 1211 on the back plate 121 allows the support part 1262 of the diffuser plate bracket 126 to pass through the back plate 121 and be located on the side of the back plate 121 facing the diffuser plate 123 to support the diffuser plate 123. This ensures that there is only the support part 1262 and no fixing part 1261 between the back plate 121 and the diffuser plate 123, so as to avoid the fixing part 1261 blocking the light emitted by the light source 122 and affecting the light propagation path of the light source 122. This reduces the impact of the diffuser plate bracket 126 on the light propagation of the light source 122, ensuring that the light source 122 has a better light propagation path, which is beneficial to improving the display effect and the picture quality of the display device 100.

[0103] In some embodiments, the fixing part 1261 can be glued to the back plate 121, or the fixing part 1261 can be fixed to the back plate 121 by screws 13 or the like, or the fixing part 1261 can be set to the back plate 121 by a snap-fit ​​connection. The specific choice can be made according to the actual situation, and this application does not make a specific limitation.

[0104] When the fixing part 1261 is fixed to the back plate 121 by screws 13, the fixing part 1261 is provided with a first fixing hole 12611, and the back plate 121 is provided with a second fixing hole (not shown). The screws 13 pass through the first fixing hole 12611 and the second fixing hole to realize the connection and fixation between the fixing part 1261 and the back plate 121.

[0105] The applicant discovered that if the support portion 1262 is rigid, when the diffuser plate 123 is subjected to pressure pointing towards the back plate 121, the force at the contact point between the diffuser plate 123 and the support portion 1262 will increase, which may easily cause damage to the diffuser plate 123 (such as the diffuser plate 123 being pressed into a dot by the end of the support portion 1262 away from the back plate 121), and may even cause damage to the liquid crystal panel 11 (because the liquid crystal panel 11 is usually directly disposed on the diffuser plate 123, and the glass substrate of the liquid crystal panel 11 is usually very thin, making it more susceptible to damage).

[0106] As an optional implementation, the support portion 1262 can be an elastic structure, meaning that the material of the support portion 1262 can be elastic materials such as rubber, plastic, or silicone, allowing it to undergo elastic deformation under stress. Thus, when the diffuser plate 123 is subjected to impact or pressure, the support portion 1262 can deform, thereby buffering the impact and reducing the force between the diffuser plate 123 and the support portion 1262. This reduces the probability of damage to the diffuser plate 123 and the liquid crystal panel 11, ensuring stable display quality and reducing the scrap rate. Simultaneously, since the support portion 1262 can quickly return to its original shape after the impact or pressure disappears, it also ensures the stability of the diffuser plate 123's position, maintaining the brightness of the light source 122, thereby guaranteeing the display effect and image quality of the liquid crystal panel 11.

[0107] In this embodiment, the fixing part 1261 may be made of the same material as the supporting part 1262, or it may be made of a different material than the supporting part 1262.

[0108] It should be noted that the support part 1262 and the fixing part 1261 can be integrally formed, or they can be manufactured separately and connected into a whole by welding, bonding or other methods. The specific choice can be made according to the actual situation, and this application does not make any specific limitation.

[0109] As another alternative implementation method, such as Figure 6 As shown, the fixing part 1261 can be an elastic structure, that is, the material of the fixing part 1261 can be some elastic materials such as rubber, plastic, and silicone, and the fixing part 1261 can undergo elastic deformation when subjected to force. Furthermore, the fixing part 1261 has a fixed end 1261a and a non-fixed end 1261b that are opposite each other along its length direction, wherein the fixed end 1261a is fixed to the back plate 121, and the non-fixed end 1261b is connected to the support part 1262.

[0110] Since the fixing part 1261 is an elastic structure, and one end of the fixing part 1261 (i.e., the fixed end 1261a) is fixed, while the other end (i.e., the non-fixed end 1261b) is a free end, the support part 1262 is disposed on the free end of the fixing part 1261. Thus, when the diffuser plate 123 is subjected to impact or pressure, the support part 1262 acts on the non-fixed end 1261b of the fixing part 1261, causing the fixing part 1261 to deform, thereby buffering the impact and reducing the force between the diffuser plate 123 and the support part 1262. This reduces the probability of damage to the diffuser plate 123 and the liquid crystal panel 11, thereby maintaining the stable display quality of the liquid crystal panel 11 and reducing the scrap rate. At the same time, since the fixing part 1261 can quickly return to its original shape after the impact or pressure disappears, it can also ensure the stability of the position of the diffuser plate 123, keeping the brightness of the light source 122 unchanged, thereby ensuring the display effect and image quality of the liquid crystal panel 11.

[0111] In addition, since one end of the fixing part 1261 is fixed and the other end is free, the fixing part 1261 forms a cantilever structure. When the diffuser plate 123 is subjected to impact or pressure, the fixing part 1261 can swing relative to the back plate 121 with its fixed end 1261a as the fulcrum. This structural design makes the fixing part 1261 easier to deform under force, thereby better buffering the external force on the diffuser plate 123 and greatly reducing the damage to the diffuser plate 123 caused by the diffuser plate support 126.

[0112] In this embodiment, the support portion 1262 may be made of the same material as the fixing portion 1261, or it may be made of a different material than the fixing portion 1261.

[0113] It should be noted that the support part 1262 and the fixing part 1261 can be integrally formed, or they can be manufactured separately and connected into a whole by welding, bonding or other methods. The specific choice can be made according to the actual situation, and this application does not make any specific limitation.

[0114] As another alternative implementation method, such as Figure 7 As shown, the diffuser plate support 126 may further include an elastic portion 1263, and the support portion 1262 is connected to the fixing portion 1261 through the elastic portion 1263. Thus, the elastic portion 1263 can buffer the external force on the diffuser plate 123, reducing the damage caused to the diffuser plate 123 by the diffuser plate support 126.

[0115] Specifically, when the diffuser plate 123 is subjected to impact or pressure, the support portion 1262 acts on the elastic portion 1263, causing the elastic portion 1263 to deform, thereby buffering the impact and reducing the force between the diffuser plate 123 and the support portion 1262. This reduces the probability of damage to the diffuser plate 123 and the liquid crystal panel 11, ensuring stable display quality of the liquid crystal panel 11 and reducing the scrap rate. At the same time, since the elastic portion 1263 can quickly return to its original shape after the impact or pressure disappears, it can also ensure the stability of the position of the diffuser plate 123, keeping the brightness of the light source 122 unchanged, thereby ensuring the display effect and image quality of the liquid crystal panel 11.

[0116] In this embodiment, at least one of the fixing part 1261 and the supporting part 1262 may be made of the same material as the supporting part 1262, or both the fixing part 1261 and the supporting part 1262 may be made of a different material than the supporting part 1262.

[0117] It should be noted that the support part 1262, the fixing part 1261, and the elastic part 1263 can be integrally formed, or they can be manufactured separately and connected into a whole by welding, bonding, or other methods. The specific choice can be made according to the actual situation, and this application does not impose any specific limitations on this.

[0118] In some embodiments, such as Figure 7 , Figure 8 and Figure 9 As shown, the elastic portion 1263 can be located on the side of the back plate 121 facing away from the diffuser plate 123, and the elastic portion 1263 has a first end 1263a and a second end 1263b opposite to each other along its length direction. The first end 1263a is connected to the fixing portion 1261, and the second end 1263b is connected to the support portion 1262. The length direction of the elastic portion 1263 intersects the direction in which the support portion 1262 protrudes relative to the back plate 121. For example, the length direction of the elastic portion 1263 can be... Figure 8 In the x-axis direction, the direction in which the support part 1262 protrudes relative to the back plate 121 can be... Figure 8 The z-axis direction, the length direction of the elastic part 1263 and the direction in which the support part 1262 protrudes relative to the back plate 121 can be set approximately perpendicularly.

[0119] This arrangement allows the support portion 1262 and the elastic portion 1263 to be angled, for example, approximately 90°. One end of the elastic portion 1263 (i.e., the first end 1263a) is fixed, while the other end (i.e., the second end 1263b) is free. The second end 1263b is not fixed, thus forming a cantilever structure. The support portion 1262 is positioned on the free end of the elastic portion 1263. Figure 10 and Figure 11 As shown, where, Figure 10 This represents the state of diffuser plate 123 when it is not under stress. Figure 11 The state of the diffuser plate 123 under external force is shown in the figure. When the diffuser plate 123 is subjected to impact or pressure, the support part 1262 acts on the second end 1263b of the elastic part 1263, so that the elastic part 1263 can swing relative to the fixed part 1261 with its first end 1263a as the fulcrum. This structural design makes the elastic part 1263 more easily deformed under force, thereby better buffering the external force on the diffuser plate 123 and greatly reducing the damage to the diffuser plate 123 caused by the diffuser plate support 126.

[0120] Understandably, in other embodiments, the length direction of the elastic portion 1263 may extend along the direction in which the support portion 1262 protrudes relative to the back plate 121, that is, the length direction of the elastic portion 1263 and the direction in which the support portion 1262 protrudes relative to the back plate 121 may be arranged to be approximately parallel.

[0121] In some embodiments, the length direction of the fixing part 1261 and the length direction of the elastic part 1263 intersect. For example, the length direction of the elastic part 1263 may be... Figure 8 In the x-axis direction, the length direction of the fixing part 1261 can be Figure 8 In the y-axis direction, the length direction of the elastic part 1263 and the length direction of the fixing part 1261 can be arranged approximately perpendicularly. In the length direction of the fixing part 1261, if the size of the fixing part 1261 is larger than the size of the elastic part 1263, then the fixing part 1261 and the elastic part 1263 can be approximately T-shaped or L-shaped.

[0122] Compared to a method where the size of the fixing part 1261 is equal to the size of the elastic part 1263 in the length direction of the fixing part 1261, by making the size of the fixing part 1261 larger than the size of the elastic part 1263 in the length direction of the fixing part 1261, the contact area between the fixing part 1261 and the back plate 121 can be increased, thereby improving the connection reliability between the fixing part 1261 and the back plate 121.

[0123] In some embodiments, such as Figure 9 As shown, the fixing part 1261 is provided with a groove 12612. The groove opening direction of the groove 12612 can extend along the length direction of the elastic part 1263, and the groove 12612 penetrates the fixing part 1261 in the direction in which the supporting part 1262 protrudes relative to the back plate 121. For example, the groove opening direction of the groove 12612 can extend along the length direction of the elastic part 1263. Figure 9 Extending along the x-axis, and in Figure 9 In the z-axis direction, the groove 12612 passes through the fixing part 1261; the first end 1263a of the elastic part 1263 is located in the groove 12612 and is connected to the bottom surface of the groove 12612.

[0124] This configuration ensures a large contact area between the fixing part 1261 and the back plate 121, thereby improving the connection reliability between the fixing part 1261 and the back plate 121. It also allows the elastic part 1263 to have a longer swing arm, making it easier for the elastic part 1263 to deform under force, thus better buffering the external force on the diffuser plate 123 and greatly reducing the damage to the diffuser plate 123 caused by the diffuser plate support 126.

[0125] For ease of description, this application defines the direction in which the support portion 1262 protrudes relative to the back plate 121 as the protrusion direction, and the plane perpendicular to the protrusion direction as the first plane.

[0126] In some embodiments, the cross-sectional area of ​​the support portion 1262 intercepted by the first plane decreases in the protruding direction. For example, the cross-sectional area of ​​the support portion 1262 intercepted by the first plane gradually decreases in the protruding direction. That is, the closer to the diffuser plate 123, the smaller the cross-sectional area of ​​the support portion 1262 intercepted by the first plane.

[0127] This configuration ensures a large connection area between the support portion 1262 and the fixing portion 1261, thereby improving the reliability of their connection and allowing the support portion 1262 to stably support the diffuser plate 123, thus reducing the deformation of the diffuser plate 123 under gravity. It also allows the end of the support portion 1262 closest to the diffuser plate 123 to be smaller, reducing the impact of the support portion 1262 on the light propagation of the light source 122. This, in turn, helps improve the display effect and image quality of the display device 100.

[0128] In some embodiments, the support portion 1262 is a sheet-like structure, and the shape of the support portion 1262 is triangular or trapezoidal; or, the support portion 1262 is a conical structure, such as a conical structure, a frustum-shaped structure, etc.

[0129] This configuration utilizes the stability of a triangle to provide stable support for the diffuser plate 123, reducing the deformation of the diffuser plate 123 under gravity. It also allows the end of the support 1262 closest to the diffuser plate 123 to be smaller, minimizing its impact on the light propagation of the light source 122. This improves the display effect and image quality of the display device 100.

[0130] In some embodiments, the support portion 1262 is made of a white or transparent material. That is, by setting the material of the support portion 1262 to a white or transparent material, the light emitted by the light source 122 can be prevented from being blocked or absorbed by the support portion 1262, thereby improving the light emission efficiency and thus improving the display brightness and display effect of the display device 100.

[0131] For example, the support portion 1262 can be made of polycarbonate (PC) material, but other materials can also be used, and no limitation is made here.

[0132] In some embodiments, the end face of the support portion 1262 that contacts the diffuser plate 123 can be an arc surface, such as a circular arc surface, thereby avoiding the situation where the end face of the support portion 1262 that contacts the diffuser plate 123 has sharp corners, which could damage the diffuser plate 123.

[0133] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0134] Furthermore, the embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the content of this specification should not be construed as a limitation of this application, and the protection scope of this application should be determined by the appended claims.

Claims

1. A display device, characterized in that, The display device includes: A liquid crystal panel, the liquid crystal panel being used to display image information; and, A backlight module, disposed on the light-incident side of the liquid crystal panel, the backlight module being used to provide backlight for the liquid crystal panel, the backlight module comprising: A backplate, which supports the liquid crystal panel; A light source is disposed on the side of the back panel facing the liquid crystal panel; A diffuser plate is disposed on the side of the back plate facing the liquid crystal panel, and the light source is located between the diffuser plate and the back plate. The diffuser plate is used to homogenize the light provided by the light source. A diffuser plate support for supporting the diffuser plate; and... The back plate is provided with a through hole, and the diffuser plate support includes: A fixing part is provided on the side of the back plate facing away from the diffuser plate; A support portion is connected to the fixing portion, and the support portion passes through the through hole on the back plate and is used to support the diffuser plate.

2. The display device according to claim 1, characterized in that, The diffuser plate bracket also includes an elastic part, and the support part is connected to the fixing part through the elastic part.

3. The display device according to claim 2, characterized in that, The elastic portion is located on the side of the back plate facing away from the diffuser plate, and the elastic portion has a first end and a second end opposite to each other along its length direction. The first end is connected to the fixing portion, and the second end is connected to the support portion. The length direction of the elastic portion intersects with the direction in which the support portion protrudes relative to the back plate.

4. The display device according to claim 3, characterized in that, The length direction of the fixing part intersects the length direction of the elastic part, and the size of the fixing part is larger than the size of the elastic part in the length direction of the fixing part.

5. The display device according to claim 4, characterized in that, The fixing part is provided with a groove, the groove opening direction extends along the length direction of the elastic part, and the groove passes through the fixing part in the direction in which the supporting part protrudes relative to the back plate; The first end of the elastic part is located in the groove and is connected to the bottom surface of the groove.

6. The display device according to claim 1, characterized in that, The fixing part is an elastic structure, and the fixing part has a fixed end and a non-fixed end opposite to each other along its length direction. The fixed end is fixed to the back plate, and the non-fixed end is connected to the support part.

7. The display device according to claim 1, characterized in that, The support is an elastic structure.

8. The display device according to any one of claims 1-7, characterized in that, The direction in which the support protrudes relative to the back plate is the protrusion direction, and the plane perpendicular to the protrusion direction is the first plane; In the protruding direction, the cross-sectional area of ​​the support portion intercepted by the first plane is reduced.

9. The display device according to any one of claims 1-7, characterized in that, The support portion is a sheet-like structure, and the shape of the support portion is triangular or trapezoidal; or, The support part has a conical structure.

10. The display device according to any one of claims 1-7, characterized in that, The support is made of white or transparent material.

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