Light and thin backlight assembly and display module

Abstract

The utility model provides a light and thin backlight assembly. The light and thin backlight assembly comprises a backlight body, a lamp panel and a diaphragm assembly. The backlight main body comprises a frame body and a rubber shell, and the frame body comprises a substrate, a surrounding plate, a clamping piece and a mounting cavity formed by surrounding the substrate, the surrounding plate and the clamping piece; the base plate is provided with a mounting surface, the clamping piece extends outwards from one side edge of the base plate and then is bent in the direction away from the mounting surface, and the surrounding plate extends from the other edges of the base plate in the direction away from the mounting surface; the rubber shell is arranged in the mounting cavity and connected with the edges of the surrounding plate, the clamping piece and the substrate in an attached mode, and the lamp panel and the diaphragm assembly are arranged on the inner side of the rubber shell. First through holes are formed in the connecting position of the base plate and the surrounding plate and the bending position of the clamping piece. And the rubber shell is correspondingly provided with a first convex point and is embedded and connected to the first through hole. Through the clamping piece, the first through hole and the first protruding point, the structural strength and stability of the backlight body are improved, and the firmness degree under the complex stress condition is improved. The utility model further provides a display module adopting the light and thin backlight assembly.

Description

TECHNICAL FIELD

[0001] The utility model belongs to display module technical field, concretely relates to a kind of light and thin backlight assembly and display module. BACKGROUND

[0002] Display screen gradually develops with the increasing demand occasions of human-computer interaction, and with the increasing demand for display effect and hardware parameters, many better display technologies also emerge.

[0003] In high-order direct backlight display technology, Mini LED Local Dimming backlight technology provides higher contrast and more uniform brightness distribution by realizing more precise light control effect, and becomes one of the popular backlight technologies at present, and is widely used in high-end display products.

[0004] However, with the application of Mini LED Local Dimming backlight technology, thinner, lighter and narrower backlight assembly enters the deep water area of technology. Since the current backlight shell adopts glue-iron integrated forming technology, when the thickness of the backlight shell gradually decreases with the decrease of the thickness of the backlight assembly accessory, the attachment area between the iron frame side and the glue shell also gradually decreases, so that they are more likely to fall off. If the adhesion of the iron frame and the glue shell is improved by using the existing technology, the backlight assembly frame will inevitably be thickened and the weight will be increased. SUMMARY

[0005] In order to solve the deficiencies of the prior art, the utility model provides a light and thin backlight assembly, which is characterized by being provided with a clamping piece on the frame body, a first through hole is arranged at the connection between the base plate and the surrounding plate and the bending position of the clamping piece, and a first protrusion is arranged on the glue shell, the first protrusion is embedded and connected to the first through hole, so that the connection between the frame body and the glue shell can be kept firm when the thickness of the backlight assembly is reduced, and falling off can be avoided.

[0006] The technical effects achieved by the utility model are realized by the following technical aspects:

[0007] In a first aspect, the utility model provides a light and thin backlight assembly, characterized by comprising a backlight main body, a lamp plate and a film piece assembly installed in the backlight main body; the backlight main body comprises:

[0008] A frame body comprising a base plate, a surrounding plate and a clamping piece, the base plate is provided with a mounting surface, the clamping piece is bent to form after extending outward from one side of the base plate, and the surrounding plate is extended to form from the remaining edges of the base plate away from the mounting surface; the base plate, the surrounding plate and the clamping piece form an installation cavity; and

[0009] A glue shell is arranged in the mounting cavity and is connected with the surrounding plate, the clamping piece and the edge of the substrate. The lamp plate and the diaphragm assembly are arranged inside the glue shell.

[0010] The first through hole is arranged at the connection between the substrate and the surrounding plate and at the bending position of the clamping piece. The glue shell is correspondingly provided with a first protrusion, and the first protrusion is embedded and connected in the first through hole.

[0011] In some implementations, the substrate is further provided with a second through hole on the side edge where the clamping piece is arranged. The second through hole is located inside the first through hole. The glue shell is correspondingly provided with a second protrusion, and the second protrusion is embedded and connected in the second through hole.

[0012] In some implementations, the substrate is further provided with a ladder-shaped clamping piece between the clamping pieces. The ladder-shaped clamping piece is formed by extending outward from the edge of the substrate and bending away from the mounting surface. The waist part of the ladder-shaped clamping piece is provided with a clamping groove at the bending position. The glue shell is correspondingly provided with a clamping piece, and the clamping piece is clamped in the clamping groove.

[0013] In some implementations, the surrounding plate, the clamping piece and the ladder-shaped clamping piece are embedded in the glue shell. The waist part of the ladder-shaped clamping piece has the smallest distance at the bending position.

[0014] In some implementations, the lamp plate has a light emitting surface. The side of the lamp plate away from the light emitting surface is covered with a heat dissipation glue. The lamp plate is connected to the mounting surface through the heat dissipation glue. The light emitting surface is arrayed with flip Mini LED chips and barriers. The barriers are arranged in a matrix between the flip Mini LED chips.

[0015] In some implementations, the diaphragm assembly is sequentially provided with a first composite film, a light dispersing film, a second composite film, a first light splitting film, a QD film and a second light splitting film in the direction close to the lamp plate. The diaphragm assembly is covered and connected to the light emitting surface and extends out of the edge of the lamp plate on one side of the clamping piece.

[0016] In some implementations, the glue shell is provided with a limiting boss in the direction of the mounting cavity at the position of the ladder-shaped clamping piece. The first composite film and the light dispersing film are provided with a limiting groove matched with the shape of the limiting boss. During installation, the limiting groove is clamped and connected with the limiting boss.

[0017] In some embodiments, the rubber shell is further provided with a limiting step on both sides of the limiting boss, and all the diaphragms of the diaphragm assembly are respectively provided with a limiting plug matched with the limiting step, and each limiting plug falls into the limiting step in sequence during installation.

[0018] In a second aspect, the utility model provides a display module, including surface release film and shading rubber, and any light and thin backlight assembly above, the lamp plate is connected on the mounting surface, the diaphragm covers the lamp plate, the surface release film is pasted on the side of diaphragm assembly far from the lamp plate, and is fixed on the rubber shell, and the shading rubber is arranged at the edge between the rubber shell and the surface release film.

[0019] In some embodiments, the base plate is further provided with a through hole, the driving plate is fixed to the side of the base plate away from the mounting surface, and the flat cable is used to electrically connect the lamp plate and the driving plate through the through hole.

[0020] In summary, the utility model has at least the following advantages:

[0021] 1、The light and thin backlight assembly provided by the utility model has a plurality of clamping pieces on the frame body, the clamping force between the frame body and the rubber shell is enhanced, the contact area between the frame body and the rubber shell is increased by arranging the first through hole and the first protrusion, the binding force is improved, and the frame body and the rubber shell are prevented from being loose and other adverse phenomena, and the structural strength and stability of the backlight main body are improved.

[0022] 2、The light and thin backlight assembly provided by the utility model has a plurality of clamping pieces on the frame body, the clamping force between the frame body and the rubber shell is enhanced, the contact area between the frame body and the rubber shell is increased by arranging the first through hole and the first protrusion, the binding force is improved, and the frame body and the rubber shell are prevented from being loose and other adverse phenomena, and the structural strength and stability of the backlight main body are improved.

[0023] 3、The display module provided by the utility model adopts the light and thin backlight assembly and externally arranges the driving plate, the thickness is thin, and the display module is convenient to arrange in a display device with light and thin requirements. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is an exploded view of the light and thin backlight assembly structure of the utility model embodiment 1.

[0025] Figure 2 It is an exploded view of the structure of the backlight main body of the utility model embodiment 1.

[0026] Figure 3 It is Figure 2 It is a local enlarged view of the middle A.

[0027] Figure 4 For Figure 2 The back surface is partially enlarged at B.

[0028] Figure 5 For Figure 2 The partial enlarged view at C.

[0029] Figure 6 For Figure 2 The partial enlarged view at D.

[0030] Figure 7 It is the shaft side view when the lamp panel and the backlight main body of the utility model embodiment 2 are installed.

[0031] Figure 8 It is the partial microstructure diagram on the light-emitting surface of the utility model embodiment 2 lamp panel.

[0032] Figure 9 It is the explosion view of the light and thin backlight assembly structure of the utility model embodiment 2.

[0033] Figure 10 It is the explosion view of the display module structure of the utility model embodiment 3.

[0034] Figure 11 It is the display module back view of the utility model embodiment 3.

[0035] Markings in the figure:

[0036] 100, light and thin backlight assembly;

[0037] 1, backlight main body, 11, frame body, 111, base plate, 1111, mounting surface, 1112, first through hole,

[0038] 1113, second through hole, 1114, via hole, 112, coaming, 113, clamping part, 114, mounting cavity,

[0039] 115, trapezoidal clamping part, 1151, waist, 1152, clamping groove, 12, glue shell, 121, first convex point,

[0040] 122, second convex point, 123, clamping part, 124, limiting boss, 125, limiting step;

[0041] 2, lamp panel, 21, light-emitting surface, 22, heat dissipation glue, 23, fixed glue,

[0042] 24, inverted Mini LED chip, 25, dam, 26, base surface;

[0043] 3, diaphragm assembly, 31, first composite film, 311, limiting groove, 32, diffuser film,

[0044] 33, second composite film, 331, limiting plug, 34, first light splitting film, 35, QD film,

[0045] 36, second light splitting film, 37, film fixing glue;

[0046] 200, display module, 201, surface release film, 202, light shielding glue, 203, driving board,

[0047] 204, flat cable. DETAILED DESCRIPTION

[0048] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings and specific embodiments. The preferred embodiments of the present application are shown in the drawings. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0049] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element.

[0050] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0051] 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 the present application belongs. The terms used in the specification of the present application herein are only for the purpose of describing the specific embodiments and are not intended to limit the present application.

[0052] Example 1:

[0053] Please refer to Figures 1-2, the present utility model provides a thin-backlight component 100 for a display module of a display screen to achieve a thin and high-quality display effect. The thin-backlight component 100 includes a backlight main body 1, a lamp board 2 and a film component 3 installed in the backlight main body 1. The backlight main body 1 is made by a glue-iron integrated molding process and includes a frame body 11 and a glue shell 12 integrally formed with the frame body 11.

[0054] The frame body 11 is made of a thin metal plate by punching and bending processes and includes a substrate 111, a surrounding plate 112 and a clamping member 113. Figures 1-2 On the basis of Figure 3 , the substrate 111 is provided with an installation surface 1111. The clamping member 113 extends outward from one side edge of the substrate 111 and then bends away from the installation surface 1111. The surrounding plate 112 extends from the remaining edges of the substrate 111 away from the installation surface 1111. The substrate 111, the surrounding plate 112 and a plurality of clamping members 113 surround to form an installation cavity 114.

[0055] The glue shell 12 is disposed in the installation cavity 114 and is adhesively connected to the edges of the surrounding plate 112, the clamping member 113 and the substrate 111. The lamp board 2 and the film component 3 are disposed inside the glue shell 12, that is, an "open" - shaped structure is formed at the edge in the installation cavity 114. The lamp board 2 and the film component 3 are disposed in the cavity formed by the "open" - shaped structure.

[0056] In actual production, after the frame body 11 is formed, it is placed into a molding die of the glue shell 12 and injection molding is carried out. Finally, after cooling, the glue shell 12 and the frame body 11 are fused with each other to form an integrated backlight main body 1.

[0057] On the basis of Figures 1-2 , referring to Figures 3-4 , the substrate 111 is provided with first through holes 1112 at the connection with the surrounding plate 112 and at the bending position of the clamping member 113. Correspondingly, the glue shell 12 is provided with first bumps 121, and the first bumps 121 are embedded and connected to the first through holes 1112. The first through holes 1112 are formed by punching and then bending the frame body 11, and the first bumps 121 are formed by the flowing glue shell 12 material entering the first through holes 1112 and cooling during the injection molding process. <[

[0058] By providing a plurality of clamping members 113, the grasping force of one side of the frame body 11 on the glue shell 12 is increased. With the top pressure of the surrounding plate 112 on the glue shell 12, the formed glue shell 12 is not easily loosened and dropped. The internal structural strength is better, and it is beneficial to make the backlight main body 1 thinner. More specifically, in order to improve the grasping force of the clamping member 113, an acute angle is formed between the bent part of the clamping member 113 and the installation surface 1111.

[0059] The first through hole 1112 and the first convex point 121 cooperate to increase the contact area between the frame body 11 and the glue shell 12, so that the adhesion between the two is improved, and the connection is more firm. The first through hole 1112 is arranged at a position so that the first convex point 121 has movement restriction in three dimensional directions within the first through hole 1112. When the back light body 1 encounters slight local bending deformation, or due to temperature changes, a gap appears between the frame body 11 and the glue shell 12, the first through hole 1112 and the first convex point 121 can effectively limit the glue shell 12 in the frame body 11, ensuring the stability of the back light body 1 during use.

[0060] In some embodiments, in order to further improve the adhesion, a thinner back light body 1 thickness is achieved. The substrate 111 is further provided with a second through hole 1113 on the side edge where the engaging member 113 is arranged, the second through hole 1113 is located inside the first through hole 1112, and the glue shell 12 is correspondingly provided with a second convex point 122, which is embedded and connected to the second through hole 1113. By arranging the second through hole 1113 and the second convex point 122, when the back light board thickness is thinned, the influence of the weakened gripping force of the surrounding plate 112 and the engaging member 113 on the glue shell 12 is effectively compensated. Of course, in some embodiments, the second through hole 1113 is also arranged on the four corners of the substrate 111, and the second convex point 122 is also arranged at the corresponding position of the glue shell 12.

[0061] Further, as shown in Figures 5-6 between the engaging members 113, the substrate 111 is further provided with a trapezoidal engaging member 115, which is formed by extending outward from the edge of the substrate 111 and then bending away from the mounting surface 1111. The trapezoidal engaging member 115 has a waist portion 1151 on both sides of the bending portion away from the mounting surface 1111, and a clamping groove 1152 is formed on the waist portion 1151. The glue shell 12 is correspondingly provided with a clamping member 123 which is clamped in the clamping groove 1152. The trapezoidal engaging member 115 has a similar structure to the engaging member 113, but the difference is that the bent part of the trapezoidal engaging member 115 is in a trapezoidal structure, and the waist portion 1151 of the trapezoidal structure is located on the two opposite sides of the bending portion which are not parallel to the substrate 111. Because the two waist portions 1151 are not parallel, and the clamping groove 1152 is arranged on the waist portion 1151, and the clamping member 123 of the glue shell 12 is clamped in the clamping groove 1152, the movement of the glue shell 12 along the direction of the edge of the substrate 111 where the engaging member 113 is located is restricted. Further increase the gripping force and adhesion of the frame body 11 to the glue shell 12.

[0062] Continuing to refer to Figures 1-6In the embodiment, the surrounding plate 112, the engaging member 113 and the trapezoidal engaging member 115 are embedded into the glue shell 12, so that the four peripheral edges of the surrounding plate 112, the engaging member 113 and the trapezoidal engaging member 115 are connected with the glue shell 12, and the adhesion between the glue shell 12 and the frame body 11 is maximized without adding new structures. The two side waist portions 1151 of the trapezoidal engaging member 115 are at the minimum distance at the bending position, and the trapezoidal engaging member 115 is in an inverted trapezoidal shape. The two side waist portions 1151 pull the edge of the glue shell 12 towards the base plate 111, thereby increasing the gripping force between the frame body 11 and the glue shell 12.

[0063] In summary, the frame body is provided with a plurality of engaging members, so that the gripping force between the frame body and the glue shell is enhanced. At the same time, the first through hole and the first protrusion are embedded and connected, the contact area between the frame body and the glue shell is increased, and the bonding force is greatly improved. Thus, the frame body and the glue shell are prevented from loosening and other adverse phenomena, and the structural strength and stability of the backlight main body are improved.

[0064] Secondly, the positions of each first through hole and first protrusion realize three-directional freedom constraint. When subjected to slight bending deformation force or temperature change, the first protrusion can be ensured not to be separated from the first through hole, thereby improving the firmness of the backlight main body under complex stress conditions.

[0065] In addition, the engaging member, the first through hole and the first protrusion are simple in structure and easy to produce. When the thickness of the backlight assembly is reduced, the processing cost does not increase exponentially, and the cost performance is high.

[0066] Embodiment 2:

[0067] Please refer to Figures 1-6 , and Figures 7-9 , the embodiment is further optimized on the basis of embodiment 1, and provides a light and thin backlight assembly, which is different in that the lamp plate 2 has a light emitting surface 21, and the side of the lamp plate 2 away from the light emitting surface 21 is covered with a heat dissipation glue 22. The lamp plate 2 is connected to the frame body 11 by the heat dissipation glue 22. The heat generated by the light emitting chip on the lamp plate 2 can be quickly conducted to the frame body 11 through the heat dissipation glue 22, and then dissipated and conducted outward by the frame body 11, thereby reducing the working temperature of the lamp plate 2 during work. In order to further improve the connection firmness of the lamp plate 2 and the frame body 11, a fixing glue 23 is arranged at the edge of the lamp plate 2 and the frame body 11.

[0068] As Figure 8As shown, the light-emitting surface 21 is arrayed with flip Mini LED chips 24 and dams 25, and the dams 25 are arranged in a matrix between the plurality of flip Mini LED chips 24. When the flip Mini LED chips 24 are in operation, light is emitted towards the light-emitting surface 21. Compared with traditional Mini LED chips, the light is softer and the visual experience is better. The dam 25 not only protects the flip Mini LED chip 24, but also avoids light leakage and cross-light between partitions. In the display working condition with high brightness contrast requirement, the light emission effect is better. In this embodiment, the flip Mini LED chips 24 are partitioned in a 3x3 array, and each partition is separated by the dam 25. During production, the dam 25 is arranged on the light-emitting surface 21 by a film pressing process, so that the material consistency at the connection between the dam 25 and the light-emitting surface 21 is good, and the light emission is more uniform at the position of the dam 25.

[0069] In addition, by arranging the dam 25 on the lamp panel 2, the lamp panel 2 has longitudinal and transverse intersecting reinforcing ribs, so that the lamp panel 2 still has good mechanical strength and is not easy to deform even if it is thin.

[0070] In order to improve the light emission effect of the thin backlight assembly 100, as shown, Figure 9 As shown, the film assembly 3 is sequentially provided with a first composite film 31, a light diffusing film 32, a second composite film 33, a first light splitting film 34, a QD film 35, and a second light splitting film 36 in the direction close to the lamp panel 2. Through the above film arrangement, the light emitted by the lamp panel 2 is optimized, the light mixing is sufficient, and better light emission effect is achieved.

[0071] The film assembly 3 covers and is attached to the light-emitting surface 21 of the lamp panel 2, and protrudes from the edge of the lamp panel 2 on the side where the clamping member 113 is located, so as to realize zero OD value (i.e. optical distance, light mixing distance), and the thickness of the backlight assembly can be further reduced, and the display effect is better.

[0072] In some embodiments, at the position of the trapezoidal clamping member 115, the gel shell 12 protrudes a limiting boss 124 towards the mounting cavity 114, and the first composite film 31 and the light diffusing film 32 are provided with a limiting groove 311 matched with the shape of the limiting boss 124, and during installation, the limiting groove 311 is connected with the limiting boss 124 in a clamping manner.

[0073] Further, on both sides of the limiting boss 124, the gel shell 12 is further provided with a limiting step 125, and all the films of the film assembly 3 are respectively provided with a limiting plug 331 matched with the limiting step 125, and during installation, each limiting plug 331 falls into the limiting step 125 in sequence.

[0074] By setting the limiting boss 124 and the limiting groove 311, and setting the limiting step 125 and the limiting plug 331, each film is installed and limited in sequence, avoiding the misinstallation of individual films that causes the light output effect not to meet the design requirements, and also ensuring the stability of each film after installation. Considering the process requirements during the injection molding of the glue shell 12, the limiting boss 124 has a process groove, and the limiting boss 124 is arranged at the position of the trapezoidal clamping piece 115, which can effectively improve the structural strength of the glue shell 12 on the limiting boss 124, so that the limiting boss 124 has reduced weight, and the trapezoidal clamping piece 115 can better clamp the glue shell 12 and is not easy to deform. The limiting groove 311 is arranged on the first composite film 31 and the light dispersion film 32 to ensure that the sequence of the above-mentioned films during installation is correct. In this embodiment, the first composite film 31 has three limiting grooves 311, and the light dispersion film 32 has only one, which is used to distinguish the sequence.

[0075] In addition, in order to improve the firmness of the film installation, in this embodiment, the film fixing glue 37 is arranged between the light dispersion film 32 and the second composite film 33, and on the limiting step 125.

[0076] The light thin backlight assembly provided in this embodiment further thins the thickness of the backlight assembly while ensuring high-quality light output effect and achieving zero OD value. In practice, the light thin backlight assembly of this embodiment can achieve an actual effect of reducing the thickness to 3.07 mm.

[0077] Embodiment 3:

[0078] Please refer to Figures 1-9 , on the basis of Figures 10-11 , this embodiment provides a display module 200, which comprises a surface release film 201 and a light shielding glue 202, and the light thin backlight assembly 100 described in any one of embodiments 1 or 2, and the lamp plate 2 is connected to the installation surface 1111, and the film covers the lamp plate 2. The surface release film 201 is arranged on the side of the film assembly 3 away from the lamp plate 2, and is fixed to the glue shell 12, so as to protect the film assembly 3 and the lamp plate 2 from pollution and corrosion by dust or liquid.

[0079] The light shielding glue 202 is arranged at the edge between the glue shell 12 and the surface release film 201, and the light shielding glue 202 fixes the surface release film 201 to the glue shell 12, which eliminates the middle frame structure, further reduces the thickness of the backlight assembly, and the light shielding glue 202 also shields the dispersed light source from the four sides of the film assembly 3, avoiding the phenomenon of light leakage, light diffusion and other undesirable light output phenomena.

[0080] The display module 200 further comprises a driving plate 203 and a flat cable 204, the driving plate 203 can be connected with the lamp plate 2 through the flat cable 204, and the flip Mini LED chip 24 arranged on the lamp plate 2 is precisely controlled. In order to ensure that the thin backlight assembly 100 is not thickened, the flat cable 204 is made of FPC technology, the substrate 111 is provided with a via hole 1114, the driving plate 203 is fixed on the side of the substrate 111 away from the mounting surface 1111, and the flat cable 204 electrically connects the lamp plate 2 and the driving plate 203 through the via hole 1114.

[0081] The display module provided in the embodiment adopts the thin backlight assembly in the embodiment 1 or the embodiment 2 and externally arranges the driving plate, so that the thickness is thin, and the display module is conveniently arranged in a display device with a thin requirement. Meanwhile, the display device is provided with stable and delicate backlight.

[0082] The above is only an example and description of the structure of the utility model, which is more specific and detailed, but it cannot be understood as a limitation on the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, and these obvious replacement forms belong to the protection scope of the utility model.

Claims

1. A thin backlight assembly, characterized by, The backlight body comprises a back light body, and a lamp plate and a film piece assembly installed in the back light body; the back light body comprises: The frame body comprises a base plate, a surrounding plate and a clamping piece, the base plate is provided with a mounting surface, the clamping piece is bent outward from one side edge of the base plate and then bent away from the mounting surface, and the surrounding plate is bent away from the mounting surface from the remaining edges of the base plate; the base plate, the surrounding plate and the clamping piece form a mounting cavity; and The glue shell is arranged in the mounting cavity and is connected with the surrounding plate, the clamping piece and the edges of the base plate, and the lamp plate and the film piece assembly are arranged on the inner side of the glue shell. The base plate is provided with a first through hole at the connection with the surrounding plate and at the bending position of the clamping piece, and the glue shell is correspondingly provided with a first convex point which is embedded and connected in the first through hole.

2. The thin backlight assembly of claim 1, wherein, The base plate is further provided with a second through hole at the side edge where the clamping piece is arranged, the second through hole is located on the inner side of the first through hole, the glue shell is correspondingly provided with a second convex point which is embedded and connected in the second through hole.

3. The thin backlight assembly of claim 2, wherein, Between the clamping pieces, the base plate is further provided with a trapezoidal clamping piece which is bent outward from the edge of the base plate and then bent away from the mounting surface; the trapezoidal clamping piece is provided with a waist part at the bending position away from the two sides of the mounting surface, and a clamping groove is formed on the waist part; the glue shell is correspondingly provided with a clamping piece which is clamped in the clamping groove.

4. The thin backlight assembly of claim 3, wherein, The surrounding plate, the clamping piece and the trapezoidal clamping piece are embedded in the glue shell, and the waist parts of the trapezoidal clamping piece on the two sides are the smallest at the bending position.

5. The thin backlight assembly of claim 4, wherein, The lamp plate has a light emitting surface, the side of the lamp plate away from the light emitting surface is covered with a heat dissipation glue, and the lamp plate is connected to the mounting surface through the heat dissipation glue; the light emitting surface is arrayed with flip Mini LED chips and dams, and the dams are arranged in a matrix between the flip Mini LED chips.

6. The thin backlight assembly of claim 5, wherein, The film piece assembly is sequentially provided with a first composite film, a light dispersing film, a second composite film, a first light splitting film, a QD film and a second light splitting film in the direction close to the lamp plate; the film piece assembly is covered and connected to the light emitting surface, and extends out of the edge of the lamp plate on one side of the clamping piece.

7. The thin backlight assembly of claim 6, wherein, At the position of the trapezoidal clamping piece, the glue shell is provided with a limiting boss in the direction of the mounting cavity, the first composite film and the light dispersing film are provided with a limiting groove matched with the shape of the limiting boss, and the limiting groove is clamped and connected with the limiting boss during installation.

8. The thin backlight assembly of claim 7, wherein, On both sides of the limiting boss, the glue shell is further provided with a limiting step, and all the films of the film piece assembly are respectively provided with a limiting plug matched with the limiting step, and each limiting plug falls into the limiting step in sequence during installation.

9. A display module, characterized by The light panel is attached to the mounting surface, the film covers the light panel, the surface release film is attached to the side of the film assembly away from the light panel, and is fixed to the glue shell; the light blocking glue is arranged at the edge between the glue shell and the surface release film.

10. The display module of claim 9, wherein, The substrate is provided with a via hole, the driving plate is fixed to the side of the substrate away from the mounting surface, and the flat cable passes through the via hole to electrically connect the light panel and the driving plate.

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