Backlight module, display module and display equipment

Abstract

The embodiment of the utility model discloses a backlight module, a display module and display equipment. The backlight module comprises an optical structure. The optical structure comprises a shading part and an optical composite film, the optical composite film is arranged on the side, away from the reflector plate, of the light guide plate and extends to cover the light emitting source, and the shading part covers the light emitting source and the part, close to the light emitting source, of the light guide plate. It can be understood that the optical composite film is lengthened to shield the light emitting source, the shading part is integrated on the optical composite film, the shading part and the optical composite film are made to be a whole, the situation that in the prior art, due to stripping of shading glue, a light leakage gap occurs can be avoided, and the effect of improving the light leakage prevention effect is achieved; the shading part is integrated on the optical composite film, so that the installation process can be simplified, and the assembly effect can be improved.

Description

Technical Field

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

[0002] In conventional side-lit backlight modules, the LED strip is usually placed on one side of the light guide plate, and the optical film is placed on the light guide plate. Then, light-shielding tape is used to cover the edges of the LED strip and the optical film to prevent light leakage.

[0003] In the process of researching and practicing the existing technology, the inventors of this application discovered that there is a height difference when the light-shielding tape is attached to the light strip and the optical film. Furthermore, due to the influence of the internal stress of the light-shielding tape, the light-shielding tape will arch up, causing gaps between the light strip and the optical film, which in turn causes light leakage. Utility Model Content

[0004] This application provides a backlight module, a display module, and a display device that can reduce the risk of light leakage.

[0005] This application provides a backlight module, which includes:

[0006] Reflector;

[0007] A light guide plate is disposed on the reflective sheet;

[0008] A light-emitting component includes a circuit board and a light-emitting source disposed on the circuit board, the light-emitting source being disposed on one side of the light guide plate; and

[0009] An optical structure includes a light-shielding portion and an optical composite film, wherein the optical composite film is disposed on the side of the light guide plate away from the reflective sheet and extends to cover the light source, and the light-shielding portion covers the light source and the portion of the light guide plate close to the light source.

[0010] Optionally, in some embodiments of this application, the light-shielding portion is disposed on the side of the optical composite film away from the light source;

[0011] And / or, the light-shielding portion is disposed on the side of the optical composite film near the light source.

[0012] Optionally, in some embodiments of this application, the light-shielding portion is configured to be disposed on the surface of the optical composite film by screen printing.

[0013] Optionally, in some embodiments of this application, the optical composite film includes at least two optical functional layers and an optical adhesive layer disposed between two adjacent optical functional layers, wherein the light-shielding portion is disposed in the same layer as and connected to the optical adhesive layer;

[0014] The light-shielding part is a light-shielding adhesive.

[0015] Optionally, in some embodiments of this application, the optical composite film includes a first optical functional layer, a first optical adhesive layer, a second optical functional layer, a second optical adhesive layer, and a third optical functional layer, which are sequentially stacked.

[0016] At least one of the first optical adhesive layer and the second optical adhesive layer is disposed in the same layer as one of the light-shielding portions.

[0017] Optionally, in some embodiments of this application, the length of the light-shielding portion covering the light guide plate is greater than the length of the light-shielding portion covering the light source.

[0018] Optionally, in some embodiments of this application, the circuit board is located on the side of the reflector closer to the light source, and a portion of the light guide plate is stacked on the circuit board. In the thickness direction of the backlight module, with the circuit board as a reference, the height of the light source is greater than the height of the light guide plate.

[0019] The optical structure includes a first bonding portion, a suspended portion, and a second bonding portion connected in sequence. The first bonding portion is bonded to the light source, the second bonding portion is bonded to the light guide plate, and the suspended portion is away from the light guide plate and suspended. A plurality of hole structures are provided at the junction between the second bonding portion and the suspended portion, and the plurality of hole structures are arranged at intervals along the length direction of the circuit board.

[0020] Optionally, in some embodiments of this application, the pore structure is filled with a flexible light-shielding material.

[0021] Optionally, in some embodiments of this application, a plurality of the hole structures penetrate the light-shielding portion and the optical composite film in the thickness direction of the backlight module.

[0022] Optionally, in some embodiments of this application, the backlight module further includes a middle frame, the middle frame including a receiving cavity, the reflective sheet, the light guide plate and the light-emitting component being disposed in the receiving cavity, the optical composite film including at least two optical functional layers and an optical adhesive layer disposed between two adjacent optical functional layers, the at least two optical functional layers including a diffusion film and a prism film;

[0023] The thickness of the reflective sheet is between 0.05 mm and 0.15 mm.

[0024] Accordingly, this application also provides a display module, which includes a backlight module and a display panel as described in any of the above embodiments, wherein the display panel is disposed on the light-emitting side of the backlight module by means of a connecting adhesive;

[0025] The adhesive is attached to the middle frame of the backlight module and extends to the optical structure, with the display panel located on the side of the adhesive away from the backlight module.

[0026] Optionally, in some embodiments of this application, the display module further includes an edge-sealing adhesive, a flexible circuit board, and a printed circuit board. The printed circuit board is connected to the display panel through the flexible circuit board. The printed circuit board is located on the side of the backlight module closer to the light-emitting component. One end of the edge-sealing adhesive is attached to the frame area of ​​the display panel and covers the flexible circuit board, the printed circuit board, and the light-shielding part. The other end of the edge-sealing adhesive is attached to the side of the circuit board and the reflective sheet away from the light guide plate.

[0027] Accordingly, embodiments of this application also provide a display device, the display device including the display module as described in any of the above.

[0028] The backlight module, display module, and display device of this application embodiment include an optical structure. The optical structure includes a light-shielding portion and an optical composite film. The optical composite film is disposed on the side of the light guide plate away from the reflective sheet and extends to cover the light source. The light-shielding portion covers the light source and the portion of the light guide plate close to the light source.

[0029] It is understandable that this application extends the optical composite film to block the light source and integrates the light-shielding part on the optical composite film, so that the light-shielding part and the optical composite film are as a whole. This can avoid the light leakage gap caused by the peeling of the light-shielding adhesive in the prior art, thereby improving the light leakage prevention effect. Secondly, since the light-shielding part is integrated into the optical composite film, the installation process can be simplified and the assembly effect can be improved. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the backlight module provided in the embodiments of this application;

[0031] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle;

[0032] Figure 3 This is a schematic diagram of the optical structure of the backlight module provided in the embodiments of this application;

[0033] Figure 4 This is a top view schematic diagram of the optical structure of the backlight module provided in the embodiments of this application;

[0034] Figure 5 yes Figure 1 Another enlarged schematic diagram of part A in the middle;

[0035] Figure 6This is another schematic diagram of the optical structure of the backlight module provided in the embodiments of this application;

[0036] Figure 7 This is a schematic diagram of the structure of the display module provided in the embodiment of this application;

[0037] Figure 8 This is a schematic diagram of the structure of the display device provided in the embodiments of this application. Detailed Implementation

[0038] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific implementation methods described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, the embodiments can be combined with each other but will not be described in detail one by one. Unless otherwise stated, the directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device; the terms "first," "second," "third," etc. are only used as markings and do not impose numerical requirements or establish a sequence.

[0039] This application provides a backlight module, a display module, and a display device. The display device includes the display module, and the display module includes the backlight module. Detailed descriptions follow. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0040] Please refer to Figure 1 and Figure 2 This application provides a backlight module 10, which includes a reflective sheet 11, a light guide plate 12, a light-emitting component 13, and an optical structure 14.

[0041] The light guide plate 12 is disposed on the reflector 11. The light-emitting component 13 includes a circuit board 131 and a light source 132 disposed on the circuit board 131, with the light source 132 disposed on one side of the light guide plate 12.

[0042] The optical structure 14 includes a light-shielding portion 141 and an optical composite film 142. The optical composite film 142 is disposed on the side of the light guide plate 12 away from the reflector 11 and extends to cover the light source 132. The light-shielding portion 141 covers the light source 132 and the portion of the light guide plate 12 near the light source 132.

[0043] It is understood that the backlight module 10 of this application extends the optical composite film 142 to block the light source 132 and integrates the light-shielding part 141 on the optical composite film 142, so that the light-shielding part 141 and the optical composite film 142 are as a whole. This can avoid the light leakage gap caused by the peeling of the light-shielding adhesive in the prior art, thereby improving the light leakage prevention effect. Secondly, since the light-shielding part 141 is integrated into the optical composite film 142, the installation process can be simplified and the assembly effect can be improved.

[0044] Optionally, in some embodiments of this application, the backlight module 10 further includes a middle frame 15, which includes a receiving cavity 15a. The reflective sheet 11, the light guide plate 12, and the light-emitting component 13 are disposed within the receiving cavity 15a.

[0045] Optionally, in some embodiments, the thickness of the reflective sheet 11 is between 0.05 mm and 0.15 mm.

[0046] It is understandable that the thickness of the reflective sheet 11 is between 0.05 mm and 0.15 mm, which is thicker than that of conventional reflective sheets. Therefore, the reflective sheet 11 has better support and reflective performance. Secondly, based on the better support performance of the reflective sheet 11, the back plate can be saved, so as to achieve the effect of thinning the backlight module.

[0047] Optionally, the thickness of the reflective sheet 11 can be 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.10 mm, 0.11 mm, 0.12 mm, 0.13 mm, 0.14 mm, or 0.15 mm.

[0048] The light source 132 is electrically connected to the circuit board 131. The circuit board 131 is configured to drive the light source 132 to emit light. The circuit board 131 is located on the side of the reflector 11 near the light source 132, and a portion of the light guide plate 12 is stacked on the circuit board 131.

[0049] Optionally, the light source 132 can be a light-emitting device such as a light strip, a light bead, or an LED device.

[0050] Optionally, in some embodiments of this application, the length of the light-shielding portion 141 covering the light guide plate 12 is greater than the length of the light-shielding portion 141 covering the light source 132.

[0051] It is understandable that, since the light-shielding part 141 continuously covers the light source 132 and the light guide plate 12, the longer the length of the light-shielding part 141 covering the light guide plate 12, the better the light-shielding effect of the light-shielding part 141. Secondly, even if the optical composite film 142 arches, the increased coverage of the light-shielding part 141 allows it to maintain the required light-shielding effect.

[0052] Optionally, the optical composite film 142 includes at least two optical functional layers x1 and an optical adhesive layer x2 disposed between two adjacent optical functional layers x1, wherein the at least two optical functional layers x1 include a diffusion film and a prism film.

[0053] For example, such as Figure 3 As shown, the optical composite film 142 includes a first optical functional layer 14a, a first optical adhesive layer 14d, a second optical functional layer 14b, a second optical adhesive layer 14f, and a third optical functional layer 14c, which are stacked sequentially.

[0054] In other words, the optical composite film 142 includes three optical functional layers x1 and two optical adhesive layers x2. The three optical functional layers x1 are the first optical functional layer 14a, the second optical functional layer 14b, and the third optical functional layer 14c, and the two optical adhesive layers x2 are the first optical adhesive layer 14d and the second optical adhesive layer 14f.

[0055] Among them, the first optical functional layer 14a is a diffusion film, and the second optical functional layer 14b and the third optical functional layer 14c are prism films.

[0056] Optionally, in some embodiments, the prism width of the second optical functional layer 14b is different from the prism width of the third optical functional layer 14c. In other embodiments, the prism extension direction of the second optical functional layer 14b is different from the prism extension direction of the third optical functional layer 14c.

[0057] It should be noted that, Figure 3 This is just one structure of the optical composite film 142, but it is not limited to this. For example, the optical composite film 142 may only include two optical functional layers, a diffusion film and a prism film, or the optical composite film 142 may include multiple optical functional layers with different optical functions, such as a diffusion film, a prism film and a quantum dot film; or the optical composite film 142 may include three or more optical functional layers, such as four, five or six layers.

[0058] Optional, please refer to Figure 2 and Figure 3 In some embodiments of this application, the light-shielding part 141 is disposed on the side of the optical composite film 142 away from the light source 132; and / or, the light-shielding part 141 is disposed on the side of the optical composite film 142 close to the light source 132.

[0059] In other words, the light-shielding part 141 can be provided only on one side of the optical composite film 142, or the light-shielding part 141 can be provided on both sides of the optical composite film 142 that are opposite to each other.

[0060] Optionally, in some embodiments of this application, the light-shielding portion 141 is configured to be disposed on the surface of the optical composite film 142 by screen printing.

[0061] It is understandable that the light-shielding part 141 is set on the optical composite film 142 by screen printing, so that the light-shielding part 141 can be accurately and directly attached to the optical composite film 142.

[0062] Optional, please refer to Figure 2 and Figure 4 In some embodiments of this application, in the thickness direction of the backlight module 10, with reference to the circuit board 131, the height h1 of the light source 132 is greater than the height h2 of the light guide plate 12.

[0063] The optical structure 14 includes a first bonding portion 421, a suspended portion 422, and a second bonding portion 423 connected in sequence. The first bonding portion 421 is bonded to the light source 132. The second bonding portion 423 is bonded to the light guide plate 12. The suspended portion 422 is located away from the light guide plate 12 and is suspended. A plurality of hole structures k1 are provided at the junction between the second bonding portion 423 and the suspended portion 422, and the plurality of hole structures k1 are arranged at intervals along the length direction of the circuit board 131.

[0064] Understandably, the hole structures k1 are spaced apart at the junction of the suspended portion 422 and the second bonding portion 423 to release the internal stress between the suspended portion 422 and the second bonding portion 423, thereby reducing the risk of the optical composite film 142 arching due to the height difference between the light source 132 and the light guide plate 12.

[0065] Optionally, in some embodiments of this application, the pore structure k1 is filled with a flexible light-shielding material.

[0066] It is understandable that since the internal stress of the hole structure k1 has been released, filling the hole structure k1 with flexible light-shielding material will not affect the internal stress of the optical composite film 142, and will help the bending setting of the suspended part 422 and further improve the light-shielding effect.

[0067] Optionally, in some embodiments of this application, a plurality of hole structures k1 penetrate the light-shielding portion 141 and the optical composite film 142 in the thickness direction of the backlight module 10.

[0068] It is understood that the hole structure k1 penetrates the light-shielding portion 141 and the optical composite film 142, which can improve the stress relief effect. In some embodiments, the hole structure k1 may also be a blind hole.

[0069] Figure 5 What is shown is Figure 1 Another schematic enlarged view of part A in the middle. Figure 6 This diagram illustrates another possible optical structure of the backlight module according to an embodiment of this application. Compared to... Figure 2 and Figure 3 The corresponding implementation methods, in some embodiments of this application, such as Figure 5 and Figure 6 As shown, the light-shielding part 141 is integrated inside the optical composite film 142 to thin the optical structure 14.

[0070] exist Figure 5 and Figure 6 In this document, parts that differ from the embodiments described above will be described to avoid redundancy.

[0071] Optional, please refer to Figure 5 and Figure 6 The light-shielding part 141 is disposed on the same layer as and connected to the optical adhesive layer x2, and the light-shielding part 141 is a light-shielding adhesive.

[0072] It is understandable that integrating the light-shielding part 141 between two adjacent optical functional layers x1 can not only protect the light-shielding part 141 and reduce the risk of damage to the light-shielding part 141, but also reduce the thickness of the optical structure 14 by setting the light-shielding part 141 and the optical adhesive x2 in the same layer.

[0073] Optionally, in some embodiments of this application, at least one of the first optical adhesive layer 14d and the second optical adhesive layer 14f is disposed in the same layer as a light-shielding portion 141.

[0074] For example, the light-shielding portion 141 may be disposed in the same layer as only one of the first optical adhesive layer 14d and the second optical adhesive layer 14f. Alternatively, there may be two light-shielding portions 141, one disposed in the same layer as the first optical adhesive layer 14d and the other disposed in the same layer as the second optical adhesive layer 14f; that is, each optical adhesive layer x2 has one light-shielding portion 141 disposed in the same layer. It can be understood that the more light-shielding portions 141 are stacked, the better the light-shielding performance of the optical structure 14.

[0075] Please refer to Figure 7 This application also provides a display module 100, which includes a backlight module 10 and a display panel 20 as described in any of the above embodiments. The display panel 20 is disposed on the light-emitting side of the backlight module 10 by a connecting adhesive 21.

[0076] The adhesive 21 is attached to the middle frame 15 of the backlight module 10 and extends to the optical structure 14. The display panel 20 is located on the side of the adhesive 21 away from the backlight module 10.

[0077] Optionally, the adhesive 21 is a joint adhesive.

[0078] It is understood that the display module 100 of this application extends the optical composite film 142 to block the light source 132 and integrates the light-shielding part 141 on the optical composite film 142, so that the light-shielding part 141 and the optical composite film 142 are as a whole. This can avoid the situation of light leakage gaps caused by the peeling of the light-shielding adhesive in the prior art, thereby improving the light leakage prevention effect. Secondly, since the light-shielding part 141 is integrated into the optical composite film 142, the installation process can be simplified and the assembly effect can be improved.

[0079] It should be noted that the structure of the backlight module 10 of the display module 100 in this embodiment is similar to or the same as the structure of the backlight module 10 in any of the above embodiments, so it will not be described again here. For details, please refer to [link / reference]. Figures 1 to 6 The explanation.

[0080] Optionally, in some embodiments of this application, the display module 100 further includes an edge-binding adhesive 22, a flexible circuit board 23, and a printed circuit board 24. The printed circuit board 24 is connected to the display panel 20 via the flexible circuit board 23, and the printed circuit board 24 is located on the side of the backlight module 10 near the light-emitting component 13. One end of the edge-binding adhesive 22 is attached to the frame area of ​​the display panel 20 and covers the flexible circuit board 23, the printed circuit board, and the light-shielding portion 141, while the other end of the edge-binding adhesive 22 is attached to the side of the circuit board 131 and the reflective sheet 11 away from the light guide plate 12.

[0081] Understandably, the edge-sealing adhesive 22 is black. By directly attaching the circuit board 131 and the reflective sheet 11 with the edge-sealing adhesive 22, the back plate is saved, achieving the effect of thinning the display module 100.

[0082] Please refer to Figure 8 This application embodiment also provides a display device 1000, which includes a display module 100 as described in any of the above claims.

[0083] It should be noted that the structure of the display module 100 of the display device 1000 in this application embodiment is similar to or the same as the structure of the display module 100 in any of the above embodiments, so it will not be described again here. For details, please refer to [link / reference]. Figures 1 to 7 The explanation.

[0084] The display device 1000 of this application embodiment includes an optical structure 14. The optical structure 14 includes a light-shielding portion 141 and an optical composite film 142. The optical composite film 142 is disposed on the side of the light guide plate 12 away from the reflective sheet 11 and extends to cover the light source 132. The light-shielding portion 141 covers the light source 132 and the portion of the light guide plate 12 near the light source 132.

[0085] It is understood that the display device 1000 of this application extends the optical composite film 142 to block the light source 132 and integrates the light-shielding part 141 on the optical composite film 142, so that the light-shielding part 141 and the optical composite film 142 are as a whole. This can avoid the situation of light leakage gaps caused by the peeling of the light-shielding adhesive in the prior art, thereby improving the light leakage prevention effect. Secondly, since the light-shielding part 141 is integrated into the optical composite film 142, the installation process can be simplified and the assembly effect can be improved.

[0086] Optionally, the display device 1000 can be applied to and used in a variety of products, including, for example, televisions, laptop computers, monitors, billboards, Internet of Things (IoT) devices, and portable electronic devices including mobile phones, smartphones, tablet computers, mobile communication terminals, electronic notebooks, e-books, portable multimedia players (PMPs), navigation devices, and ultra-mobile personal computers (UMPCs).

[0087] Furthermore, the display device 1000 according to some embodiments can be applied to and used within wearable devices, including smartwatches, watch phones, glasses-type displays, and head-mounted displays (HMDs). Additionally, according to some embodiments, the display device 1000 can be applied to instrument panels for automobiles, displays in central dashboards or central information displays (CIDs) arranged on instrument panels, interior mirror displays replacing side mirrors, and displays for entertainment systems arranged on the back of the front seats for rear-seat passengers in automobiles.

[0088] The foregoing has provided a detailed description of a backlight module, display module, and display device provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A backlight module, characterized in that, include: Reflector; A light guide plate is disposed on the reflective sheet; A light-emitting component includes a circuit board and a light-emitting source disposed on the circuit board, wherein the light-emitting source is disposed on one side of the light guide plate; as well as An optical structure includes a light-shielding portion and an optical composite film, wherein the optical composite film is disposed on the side of the light guide plate away from the reflective sheet and extends to cover the light source, and the light-shielding portion covers the light source and the portion of the light guide plate close to the light source.

2. The backlight module according to claim 1, characterized in that, The light-shielding part is disposed on the side of the optical composite film away from the light source; And / or, the light-shielding portion is disposed on the side of the optical composite film near the light source.

3. The backlight module according to claim 2, characterized in that, The light-shielding portion is configured to be formed on the surface of the optical composite film by screen printing.

4. The backlight module according to claim 1, characterized in that, The optical composite film includes at least two optical functional layers and an optical adhesive layer disposed between two adjacent optical functional layers, wherein the light-shielding part is disposed in the same layer as and connected to the optical adhesive layer; The light-shielding part is a light-shielding adhesive.

5. The backlight module according to claim 4, characterized in that, The optical composite film comprises a first optical functional layer, a first optical adhesive layer, a second optical functional layer, a second optical adhesive layer, and a third optical functional layer, which are sequentially stacked. At least one of the first optical adhesive layer and the second optical adhesive layer is disposed in the same layer as one of the light-shielding portions.

6. The backlight module according to any one of claims 1-4, characterized in that, The length of the light-shielding part covering the light guide plate is greater than the length of the light-emitting part covering the light source.

7. The backlight module according to any one of claims 1-4, characterized in that, The circuit board is located on the side of the reflector closer to the light source, and a portion of the light guide plate is stacked on the circuit board. In the thickness direction of the backlight module, with the circuit board as a reference, the height of the light source is greater than the height of the light guide plate. The optical structure includes a first bonding portion, a suspended portion, and a second bonding portion connected in sequence. The first bonding portion is bonded to the light source, the second bonding portion is bonded to the light guide plate, and the suspended portion is away from the light guide plate and suspended. A plurality of hole structures are provided at the junction between the second bonding portion and the suspended portion, and the plurality of hole structures are arranged at intervals along the length direction of the circuit board.

8. The backlight module according to claim 7, characterized in that, The porous structure is filled with a flexible light-shielding material.

9. The backlight module according to claim 7, characterized in that, Multiple holes penetrate the light-shielding portion and the optical composite film in the thickness direction of the backlight module.

10. The backlight module according to claim 9, characterized in that, The backlight module also includes a middle frame, the middle frame includes a receiving cavity, the reflective sheet, the light guide plate and the light-emitting component are disposed in the receiving cavity, the optical composite film includes at least two optical functional layers and an optical adhesive layer disposed between two adjacent optical functional layers, the at least two optical functional layers include a diffusion film and a prism film; The thickness of the reflective sheet is between 0.05 mm and 0.15 mm.

11. A display module, characterized in that, Includes a backlight module and a display panel as described in any one of claims 1-10, wherein the display panel is disposed on the light-emitting side of the backlight module by means of a connecting adhesive; The adhesive is attached to the middle frame of the backlight module and extends to the optical structure, with the display panel located on the side of the adhesive away from the backlight module.

12. The display module according to claim 11, characterized in that, The display module further includes an edge-sealing adhesive, a flexible circuit board, and a printed circuit board. The printed circuit board is connected to the display panel through the flexible circuit board. The printed circuit board is located on the side of the backlight module closer to the light-emitting component. One end of the edge-sealing adhesive is attached to the frame area of ​​the display panel and covers the flexible circuit board, the printed circuit board, and the light-shielding part. The other end of the edge-sealing adhesive is attached to the side of the circuit board and the reflective sheet away from the light guide plate.

13. A display device, characterized in that, The display device includes the display module as described in claim 11 or 12.

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