Backlight module and display device

Abstract

The application relates to the technical field of display devices, and specifically discloses a backlight module and a display device. The backlight module comprises a back plate, a plurality of bending pieces and a glue frame. The back plate comprises a bottom plate and a frame body arranged circumferentially around the bottom plate, the frame body and the bottom plate form an accommodating space, the plurality of bending pieces are arranged at intervals on the side of the frame body away from the bottom plate, and the bending pieces are arranged to be bent towards the bottom plate; a gap is formed between the end of the bending piece away from the frame body and the plane of the bottom plate; the frame body is provided with a glue injection hole; the glue frame comprises a first glue frame part, a second glue frame part and a third glue frame part, the first glue frame part is arranged in the accommodating space, the second glue frame part is filled in the glue injection hole, and the third glue frame part is filled in the gap. The application reduces the deformation probability of the bottom of the back plate in the backlight module to improve the display effect of the display device.

Description

Technical Field

[0001] This application relates to the field of display device technology, specifically to a backlight module and a display device. Background Technology

[0002] Display devices include a display panel and a backlight module. The backlight module enables the display device to emit light, and the performance of the backlight module directly affects the display quality of the display device.

[0003] However, the double-folded backplate in the existing backlight module is prone to outward flipping, which transfers the force to the glass components on the display substrate, causing L0 light leakage and / or fragmentation at the edge of the display device, which affects the display effect of the display device. Utility Model Content

[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a backlight module and a display device that improves the display effect of the display device by reducing the probability of deformation at the bottom of the backplate in the backlight module.

[0005] A first aspect of this application provides a backlight module, comprising:

[0006] The back panel includes a base plate and a frame arranged around the base plate, the frame being connected to the base plate and enclosing it to form an accommodating space;

[0007] Multiple bending components are located on the side of the frame away from the bottom plate and are spaced apart from each other; the bending components are bent toward the bottom plate, and there is a gap between the end of the bending component away from the frame and the plane of the bottom plate;

[0008] The back plate is provided with glue injection holes;

[0009] The adhesive frame includes a first adhesive frame portion, a second adhesive frame portion, and a third adhesive frame portion. The first adhesive frame portion is disposed within the receiving space, the second adhesive frame portion fills the glue injection hole, and the third adhesive frame portion fills the gap.

[0010] In some embodiments, a notch is formed between adjacent bent members and the frame;

[0011] The frame includes a fourth frame section;

[0012] The fourth frame portion is accommodated within the notch.

[0013] In some embodiments, the bending member is a structure formed by bending 180 degrees from the inside of the frame to the outside;

[0014] The distance between the end of the bent component away from the frame and the plane where the base plate is located is a first distance, and the distance between the end of the frame away from the base plate and the plane where the base plate is located is a second distance, wherein the first distance is not greater than the second distance.

[0015] In some implementations, at least one of the first distance and the second distance is greater than or equal to 0.4 mm.

[0016] In some embodiments, the second frame portion is located between the first frame portion and the third frame portion, the side of the third frame portion is flush with the frame body, and the bottom surface of the third frame portion is flush with the bottom surface of the base plate.

[0017] In some embodiments, the bending member is a structure formed by bending the outer side of the frame inward by 180 degrees;

[0018] The distance between the end of the bent component away from the frame and the plane where the base plate is located is the third distance, and the distance between the end of the frame away from the base plate and the plane where the base plate is located is the fourth distance, satisfying that the third distance is not less than the fourth distance.

[0019] In some implementations, the third distance is greater than or equal to 1 mm, and the fourth distance is greater than or equal to 0.4 mm.

[0020] In some embodiments, the third frame portion is located between the first frame portion and the second frame portion, the side of the second frame portion is flush with the frame body, and the bottom surface of the second frame portion is flush with the bottom surface of the base plate.

[0021] In some embodiments, the first frame portion, the second frame portion, the third frame portion, and the fourth frame portion are integrally formed.

[0022] In some embodiments, there are multiple injection holes, which are spaced apart on the frame; the central axis of each injection hole forms an angle with the plane of the frame, the angle being greater than 0° and less than 180°.

[0023] In some embodiments, the end of the bent member facing away from the frame is flush with the top of the glue injection hole.

[0024] In some embodiments, the back plate is provided with a glue-gripping opening, which is located on the frame between adjacent bending parts.

[0025] In some embodiments, the back panel is a metal back panel, and the frame is a plastic frame.

[0026] In some embodiments, the backlight module includes a prism assembly disposed within the receiving space.

[0027] A second aspect of this application is to provide a display device, which includes the backlight module described in the first aspect and a display substrate;

[0028] A light-shielding tape is provided between the display substrate and the prism assembly, and the light-shielding tape is respectively abutted against the display substrate and the frame.

[0029] In some embodiments, a sealing tape is provided on the outer side of the back plate, one end of the sealing tape is connected to the display substrate, and the other end of the sealing tape is connected to the back plate.

[0030] The beneficial technical effects of this application are as follows:

[0031] 1. The backlight module provided in this application has good strength and also makes it easier to reduce the probability of deformation at the bottom of the back plate in the backlight module, which is beneficial to improving the support of the back plate.

[0032] 2. The display device provided in this application has good display quality, and the probability of phenomena such as light leakage, grayscale of 0 (L0), and uneven brightness or color (PS Mura) is low. Attached Figure Description

[0033] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0034] Figure 1 An exemplary schematic diagram of a display device according to a partial embodiment of this application is shown;

[0035] Figure 2 An exemplary schematic diagram of another structure of a display device according to a portion of this application is shown;

[0036] Figure 3A An example is shown Figure 2 Enlarged structural diagram of part P in the middle;

[0037] Figure 3B An example is shown Figure 3A Schematic diagram of the backplate structure;

[0038] Figure 4A An example is shown Figure 2 A partial sectional view along the AA direction;

[0039] Figure 4B An example is shown Figure 4AA structural diagram of the components other than the frame;

[0040] Figure 5A An example is shown Figure 2 Another partial sectional view along direction AA;

[0041] Figure 5B An example is shown Figure 5A A schematic diagram of the structure of the components other than the frame.

[0042] The labels in the attached diagram are as follows:

[0043] 10000, Display device;

[0044] 1000, Backlight Module;

[0045] 100. Back panel;

[0046] 110. Base plate; 120. Frame; 1201. Glue injection hole; 1202. Glue gripping port;

[0047] 200, Bending part; 210, First bending section; 220, Second bending section;

[0048] 300, frame; 300a, first frame section; 300b, second frame section; 300c, third frame section; 300d, fourth frame section;

[0049] A. Accommodation space; B. Gap; C. Interval;

[0050] 400. Prism assembly; 410. Upper diffuser; 420. Prism sheet; 430. Lower diffuser; 500. Light guide plate; 600. Reflector;

[0051] 2000, Display substrate; 2100, Upper polarizer; 2200, Color filter; 2300, Driving circuit substrate; 2400, Lower polarizer;

[0052] 3000, light-blocking tape;

[0053] 4000, sealing tape. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described below with reference to the accompanying drawings and specific embodiments. The embodiments in this application can be implemented in many different forms. Those skilled in the art will readily understand that the implementation methods and content can be transformed into various forms without departing from the spirit and scope of this application. Therefore, this application should not be construed as being limited only to the content described in the following embodiments. Without conflict, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0055] The accompanying drawings illustrate various structural schematics according to embodiments of this application. The scale of the drawings can be used as a reference in actual manufacturing processes, but is not limited thereto. For example, the aspect ratio of the channels, the thickness and spacing of each film layer, and the width and spacing of each signal line can be adjusted according to actual needs. The number of pixels in the display substrate and the number of sub-pixels in each pixel are not limited to the quantities shown in the drawings. The drawings described in this application are merely structural schematics, and one aspect of this application is not limited to the shapes or values ​​shown in the drawings.

[0056] In the context of this application, when a layer / element is referred to as being "above" another layer / element, the layer / element may be directly above the other layer / element, or there may be an intermediate layer / element between them. Additionally, if a layer / element is "above" another layer / element in one orientation, then when the orientation is reversed, the layer / element may be "below" the other layer / element.

[0057] In the description of this application, ordinal numbers such as "first" and "second" are used to avoid confusion of constituent elements, rather than to limit the quantity.

[0058] In this specification, for convenience, terms such as "middle," "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are used to indicate orientation or positional relationships in conjunction with the accompanying drawings. This is solely for the purpose of describing this specification and simplifying the description, and does 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, it should not be construed as a limitation of this application. The positional relationships of the constituent elements may be appropriately changed depending on the direction in which each constituent element is described. Therefore, the terminology used is not limited to those described in the specification and may be appropriately replaced as appropriate.

[0059] In this specification, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection, an indirect connection via an intermediate component, or a connection within two components. Those skilled in the art will understand the specific meaning of these terms in this application based on the specific circumstances.

[0060] "A and / or B" includes the following two combinations: A only, B only, and a combination of A and B.

[0061] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0062] This document describes exemplary embodiments with reference to cross-sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and regions is enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Thus, exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. For example, etched regions shown as rectangular would typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the regions of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0063] Display devices, such as communication terminals, game consoles, multimedia players, computers, or imaging devices, typically include a display panel capable of displaying images. These display devices include a display panel and a backlight module, with the backlight module comprising a glue-and-frame integrated structure. The glue-and-frame integrated structure includes a backplate and a frame; the backplate is snapped onto the outside of the frame, and the frame's load-bearing surface supports the display panel. The glue-and-frame integrated structure offers advantages such as small tolerances, narrow bezels, and automated assembly, and its application in display devices, especially notebook computers, is becoming increasingly widespread.

[0064] Narrow-bezel LCD devices have become a major development trend in high-quality display devices due to their simplicity, aesthetics, and large viewable area for the same size. Narrow-bezel LCD devices may employ frameless backlight modules, eliminating the bezel in the backlight module to minimize the thickness and bezel width of the LCD device. However, eliminating the bezel can easily reduce the strength of the backlight module. To address this technical problem, existing technology discloses a double-folded backplate, which refers to a folded edge structure formed by bending the edge of the backplate twice or more. This structure is equivalent to adding "reinforcing ribs" to the edge, significantly improving the strength of the backlight module. However, due to process limitations such as stamping springback and mold precision, the outer fold of the double-folded backplate cannot be flush with the bottom of the backplate, resulting in a certain gap in the vertical direction. This gap makes the bottom of the backplate prone to outward bending when impacted by the edge, transferring the force to the glass components on the display substrate, causing L0 light leakage and / or fragmentation at the edge of the display device, which affects the display effect.

[0065] To address one of the aforementioned technical problems, this application discloses a backlight module and a display device. This application improves the display effect of the display device by enhancing the strength of the backplate in the backlight module and reducing the probability of deformation at the bottom of the backplate.

[0066] The display device 10000 of this application includes Figure 1 , Figure 2 The schematic diagram shows a backlight module 1000 and a display substrate 2000. The backlight module 1000 includes... Figure 3A , Figure 3B , Figure 4A and Figure 4B ,as well as Figure 5A and Figure 5B The illustration shows the back panel 100, multiple bending parts 200, and the plastic frame 300.

[0067] Specifically, the backplate 100 of this application serves as the main support structure in the backlight module 1000, possessing high strength and stability. The bending member 200 of this application is equivalent to adding "reinforcing ribs" to the edge of the backplate 100, significantly improving the strength of the backlight module 1000. The frame 300 of this application serves as a secondary support structure and a main protective frame structure in the backlight module 1000, providing structural support, protecting internal components, and preventing external impacts and dust ingress.

[0068] Combination Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 5A , Figure 5BIt can be seen that the back panel 100 includes a base plate 110 and a frame 120 arranged circumferentially around the base plate 110, the frame 120 and the base plate 110 enclosing a receiving space A; the plastic frame 300 includes a first plastic frame portion 300a, and as shown in the figure Figure 4A , Figure 4B and Figure 5A and Figure 5B As illustrated, the first frame portion 300a is disposed within the aforementioned accommodating space A. Therefore, the first frame portion 300a and the frame 120 of the back plate 100 form an integrated glue-iron structure. This integrated glue-iron structure at this location facilitates support and cushioning for other components within the frame 120. Specifically, even when the first frame portion 300a is subjected to tests such as thermal shock, the deformation of the first frame portion 300a itself can be controlled. Therefore, the first frame portion 300a is less likely to detach from the frame 120. In addition, it can improve the support of the back plate 100, thereby improving the display effect of the display device.

[0069] Further integration Figure 3A , Figure 3B It can be seen that the back panel 100 is provided with an injection hole 1201, which is mainly used to facilitate the formation of the adhesive frame 300. The adhesive frame 300 includes a second adhesive frame portion 300b, such as... Figure 4A , Figure 4B It can be seen that the second glue frame portion 300b fills the glue injection hole 1201.

[0070] In some embodiments, the glue injection hole 1201 of this application may be provided on the frame 120 or on the interface where the frame 120 and the base plate 110 are combined.

[0071] like Figure 3B As illustrated, the frame 120 is provided with a plurality of injection holes 1201 spaced apart. These injection holes 1201 can be arranged along the side of the frame 120, and the spacing between adjacent injection holes 1201 can be flexibly adjusted according to actual needs; any size is within the scope of protection of this application. Furthermore, the central axis of each injection hole 1201 forms an angle with the plane of the frame 120, which is greater than 0° and less than 180° (e.g., 90°). The injection holes 1201 provided on the frame 120, together with other molds, facilitate the formation of a plastic frame 300 with the aforementioned structure.

[0072] In some embodiments of this application, the end of the bent component 200 facing away from the frame 120 is flush with the top of the glue injection hole 1201. Specific details can be found in conjunction with… Figure 3B This design allows for the filling of the third frame portion 300c within the gap C described below.

[0073] In some embodiments of this application, the bending member 200 is disclosed to be bent toward the base plate 110, and a gap C is provided between the end of the bending member 200 away from the frame 120 and the plane of the base plate 110. Specifically, as shown in the figure... Figure 3B As illustrated, in these embodiments, this application discloses that the aforementioned gap C easily causes the bottom of the back panel 100 to flip outward when subjected to edge impact, transmitting the force to the glass components on the display substrate 2000. This results in L0 light leakage and / or fragmentation at the edge of the display device 10000, affecting the display effect of the display device 10000. Therefore, this application further designs a third frame portion 300c, which fills the aforementioned gap C. The third frame portion 300c forms an integrated glue-iron structure with the bending member 200 from one direction. This integrated glue-iron structure at this location facilitates support and cushioning for the bending member 200. Specifically, even when the third frame portion 300c is subjected to tests such as thermal shock, the deformation of the third frame portion 300c itself can be controlled. Furthermore, when the bottom of the back panel 100 is at risk of edge impact, the third frame portion 300c can cushion this force, improving the support of the bending member 200 for the back panel 100 and thus improving the display effect of the display device.

[0074] Further integration Figure 3A , Figure 3B , Figure 4A and Figure 4B It can be seen that multiple bending components 200 are located on the side of the frame 120 away from the bottom plate 110, and the bending components 200 are spaced apart; a gap B is formed between adjacent bending components 200 and the frame 120, and the gap B is as follows: Figure 3B Illustration; the frame 300 also includes a fourth frame portion 300d, combined with Figure 3A , Figure 3BIt is known that the fourth frame portion 300d is disposed within the aforementioned notch B. To facilitate the formation of multiple bent parts 200 on the side of the frame 120 away from the base plate 110, this application chooses to provide a notch B between adjacent bent parts 200 on the frame 120. The placement of the bent parts 200 significantly improves the strength of the backlight module 1000; however, the notch B also increases the risk of edge impact to the bottom of the back plate 100. This application chooses to place the fourth frame portion 300d within the aforementioned notch B to reduce this risk. The fourth frame portion 300d and the adjacent bent parts 200 form an integrated glue-iron structure, which facilitates support and buffering for the adjacent bent parts 200. Specifically, even when the fourth frame portion 300d is subjected to tests such as thermal shock, the deformation of the fourth frame portion 300d itself can be controlled, and when the bottom of the back plate 100 is subject to edge impact risk, the fourth frame portion 300d can buffer the force, improve the support of the bending member 200 to the back plate 100, and improve the display effect of the display device.

[0075] Combination Figure 4A and Figure 4B It can be seen that the bent component 200 is bent towards the base plate 110, and the bent component 200 includes a first bent portion 210 and a second bent portion 220 connected together. Specifically, Figure 4A The diagram illustrates that the bent component 200 is formed by bending the frame 120 180 degrees from the inside out. This structure is convenient to manufacture and significantly improves the strength of the backlight module 1000. However, due to limitations in existing manufacturing processes, there is a gap C between the end of the bent component 200 away from the frame 120 and the plane of the base plate 110. The specific dimensions of this gap C are disclosed in some embodiments of this application, such as... Figure 4B It can be seen that the distance between the end of the bent component 200 away from the frame 120 and the plane where the base plate 110 is located is the first distance h1, and the distance between the end of the frame 120 away from the base plate 110 and the plane where the base plate 110 is located is the second distance h2, satisfying that the first distance h1 is not greater than the second distance h2. Here, "not greater than" includes less than and equal to, thereby ensuring that the bent component 200 plays a role in enhancing the strength of the backlight module 1000.

[0076] In some embodiments, this application also discloses the specific dimensions of the first distance h1 and the second distance h2. Specifically, at least one of the first distance h1 and the second distance h2 is greater than or equal to 0.4 mm. For example, it may be 0.4 mm, 0.41 mm, 0.45 mm, 0.5 mm, etc., and the specific dimensions need to be adjusted according to the actual size of the glue injection hole 1201.

[0077] In some embodiments, such as Figure 4AAs illustrated, the second frame portion 300b is located between the first frame portion 300a and the third frame portion 300c. The side surface of the third frame portion 300c is flush with the frame 120, and the bottom surface of the third frame portion 300c is flush with the bottom surface of the base plate 110. This design helps to further reduce the probability of deformation at the bottom of the back plate 100 in the backlight module 1000, thereby improving the display effect of the display device.

[0078] This application also discloses another structural schematic diagram of the bent component 200 in some embodiments, such as... Figure 5A and Figure 5B The bending member 200 is a structure formed by bending the outer side of the frame 120 inward by 180 degrees. The advantage of this structure is that it also improves the strength of the backlight module 1000, but the disadvantage is that it occupies internal space in the display device. Furthermore, there is a gap C between the end of the bending member 200 away from the frame 120 and the plane of the base plate 110. The specific dimensions of this gap C are disclosed in some embodiments of this application, such as... Figure 5B It can be seen that the distance between the end of the bent piece 200 away from the frame 120 and the plane where the base plate 110 is located is the third distance h3, and the distance between the end of the frame 120 away from the base plate 110 and the plane where the base plate 110 is located is the fourth distance h4, satisfying that the third distance h3 is not less than the fourth distance h4. Here, "not less than" includes greater than or equal to. In some embodiments of this application, the third distance h3 is also disclosed to be ≥ 1 mm, and the fourth distance h4 is ≥ 0.4 mm. For example, the third distance h3 is 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, etc., and h4 is 0.4 mm, 0.5 mm, 0.6 mm, etc. The aforementioned gap C also makes the back plate 100 prone to outward flipping when the bottom is impacted by an edge, transmitting the force to the glass components on the display substrate 2000. This can cause light leakage and / or fragmentation at the edge of the display device 10000, affecting the display effect of the display device 10000. Therefore, this application further designs a third frame portion 300c, which fills the aforementioned gap C. Similarly, the third frame portion 300c forms an integrated glue-iron structure with the bending member 200 from another direction. This integrated glue-iron structure at this location facilitates support and cushioning for the bending member 200. Specifically, even when the third frame portion 300c is subjected to tests such as thermal shock, the deformation of the third frame portion 300c itself can be controlled. Furthermore, when the bottom of the back plate 100 is at risk of edge impact, the third frame portion 300c can cushion this force, improving the support of the bending member 200 for the back plate 100 and thus improving the display effect of the display device.

[0079] In some implementations, such as Figure 5AAs illustrated, the third frame portion 300c is located between the first frame portion 300a and the second frame portion 300b. The side surface of the second frame portion 300b is flush with the frame 120, and the bottom surface of the second frame portion 300b is flush with the bottom surface of the base plate 110. This design helps to further reduce the probability of deformation at the bottom of the back plate 100 in the backlight module 1000, thereby improving the display effect of the display device.

[0080] In some embodiments, such as Figure 4A and Figure 5A As shown, the first frame portion 300a, the second frame portion 300b, and the third frame portion 300c are integrally formed. In some embodiments, such as Figure 3A As shown, the first frame portion 300a, the second frame portion 300b, the third frame portion 300c, and the fourth frame portion 300d are integrally formed. The frame 300 is made of plastic, and the back plate 100 is made of metal, which facilitates the formation of an integrated plastic and metal structure.

[0081] Therefore, the backlight module provided in this application not only has good strength, but also facilitates the reduction of the deformation probability of the bottom of the back plate in the backlight module, which is beneficial to improving the support of the back plate.

[0082] In some embodiments, such as Figure 3B As shown, the back plate 100 is provided with a glue-gripping opening 1202, which is located on the frame 120 between adjacent bending parts 200. The glue-gripping opening 1202 also facilitates the formation of a partial glue frame, the shape of which matches the shape of the glue-gripping opening 1202, further increasing the bonding strength of the glue-iron integrated structure.

[0083] like Figure 4A , Figure 4B , Figure 5A and Figure 5B As can be seen, the backlight module 1000 includes a prism assembly 400, which is disposed within the aforementioned receiving space A. The prism assembly 400 of this application is an optical element made of a transparent material (such as glass or plastic), which has the advantage of optimizing light and is beneficial to improving the brightness of the display device 10000.

[0084] In some embodiments, this application also discloses that a light guide plate 500 and a reflective sheet 600 are provided between the prism assembly 400 and the base plate 110, and this application Figures 4A to 5B The diagram illustrates that the light guide plate 500 and the reflector 600 are stacked together, and the prism assembly 400 is connected to the base plate 110 through the light guide plate 500 and the reflector 600.

[0085] In some embodiments, this application also discloses that the prism assembly 400 includes an upper diffuser 410, a prism sheet 420, and a lower diffuser 430 stacked together. The prism assembly 400 of this application may also include other components conventional in the art, which will not be specifically described in this application.

[0086] The second aspect of this application discloses a display device 10000, which includes the backlight module 1000 described above, and also includes a display substrate 2000; a light-shielding tape 3000 is provided between the display substrate 2000 and the prism assembly 400 described above, and the light-shielding tape 3000 is respectively disposed against the display substrate 2000 and the frame 300.

[0087] The light-blocking tape 3000 of this application not only has the characteristics of blocking light and preventing light leakage, but also has the function of fixing the prism assembly 400.

[0088] In some embodiments, a sealing tape 4000 is provided on the outer side of the back plate 100, one end of the sealing tape 4000 is connected to the display substrate 2000, and the other end of the sealing tape 4000 is connected to the back plate 100.

[0089] The sealing tape 4000 of this application is a key component in the display device that ensures the performance and reliability of the display panel. It facilitates better waterproofing and dustproofing, which helps to improve the service life of the display device.

[0090] In some embodiments, the display substrate 2000 includes an upper polarizer 2100, a color filter 2200, a driving circuit substrate 2300, and a lower polarizer 2400 stacked together.

[0091] The composition and structure of each component in the display substrate 2000 of this application are the same as those in the prior art, and will not be described in detail here.

[0092] Therefore, the display device provided in this application has good display quality, and the probability of phenomena such as light leakage, grayscale of 0 (L0), and uneven brightness or color (PS Mura) is low.

[0093] In summary, the design method provided in this application improves the display effect of the display device by reducing the probability of deformation at the bottom of the backplate in the backlight module.

[0094] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0095] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A backlight module, characterized in that: include: The back panel includes a base plate and a frame arranged around the base plate, the frame being connected to the base plate and enclosing it to form an accommodating space; Multiple bent components are located on the side of the frame away from the bottom plate and are spaced apart from each other. The bending member is bent toward the base plate, and there is a gap between the end of the bending member away from the frame and the plane of the base plate. The back plate is provided with glue injection holes; The adhesive frame includes a first adhesive frame portion, a second adhesive frame portion, and a third adhesive frame portion. The first adhesive frame portion is disposed within the receiving space, the second adhesive frame portion fills the glue injection hole, and the third adhesive frame portion fills the gap.

2. The backlight module according to claim 1, characterized in that: A notch is formed between the adjacent bent parts and the frame; The frame includes a fourth frame section; The fourth frame portion is accommodated within the notch.

3. The backlight module according to any one of claims 1 to 2, characterized in that: The bending member is a structure formed by bending the inner side of the frame outward by 180 degrees; The distance between the end of the bent component away from the frame and the plane where the base plate is located is a first distance, and the distance between the end of the frame away from the base plate and the plane where the base plate is located is a second distance, wherein the first distance is not greater than the second distance.

4. The backlight module according to claim 3, characterized in that: At least one of the first distance and the second distance is greater than or equal to 0.4 mm.

5. The backlight module according to claim 3, characterized in that: The second frame portion is located between the first frame portion and the third frame portion. The side of the third frame portion is flush with the frame body, and the bottom surface of the third frame portion is flush with the bottom surface of the base plate.

6. The backlight module according to any one of claims 1 to 2, characterized in that: The bending component is a structure formed by bending the outer side of the frame inward by 180 degrees. The distance between the end of the bent component away from the frame and the plane where the base plate is located is the third distance, and the distance between the end of the frame away from the base plate and the plane where the base plate is located is the fourth distance, satisfying that the third distance is not less than the fourth distance.

7. The backlight module according to claim 6, characterized in that: The third distance is greater than or equal to 1 mm, and the fourth distance is greater than or equal to 0.4 mm.

8. The backlight module according to claim 6, characterized in that: The third frame portion is located between the first frame portion and the second frame portion. The side of the second frame portion is flush with the frame body, and the bottom surface of the second frame portion is flush with the bottom surface of the base plate.

9. The backlight module according to claim 2, characterized in that: The first frame portion, the second frame portion, the third frame portion, and the fourth frame portion are integrally formed.

10. The backlight module according to any one of claims 1 to 2, characterized in that: There are multiple glue injection holes, which are spaced apart on the frame. The central axis of the glue injection hole and the plane of the frame are at an angle, which is greater than 0° and less than 180°.

11. The backlight module according to claim 10, characterized in that: The end of the bent component facing away from the frame is flush with the top of the glue injection hole.

12. The backlight module according to any one of claims 1 to 2, characterized in that: The back plate is provided with a glue-gripping opening, which is located on the frame between adjacent bending parts.

13. The backlight module according to any one of claims 1 to 2, characterized in that: The backlight module includes a prism assembly disposed within the receiving space.

14. A display device, characterized in that: The backlight module includes any one of claims 1 to 13, and further includes a display substrate; A light-shielding tape is provided between the display substrate and the prism assembly, and the light-shielding tape is respectively abutted against the display substrate and the frame.

15. The display device according to claim 14, characterized in that: The back panel has a sealing tape on its outer side, one end of which is connected to the display substrate and the other end of which is connected to the back panel.

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