Display module, preparation method thereof and display device

Abstract

The application provides a display module, a preparation method thereof and a display device. The display module comprises a first screen body and a second screen body, a polarizer and a cover plate. The first screen body and the second screen body are arranged side by side. The polarizer is arranged on the light-emitting side of the first screen body and the second screen body, and covers the first screen body and the second screen body. The cover plate is arranged on the side of the polarizer away from the first screen body and the second screen body, and covers the first screen body and the second screen body. The display module of the application can reduce the cumulative influence of the fitting tolerance, help to reduce the width of the screen body splicing gap, and thus can reduce a series of problems caused by the excessively wide gap, reduce the risk of impurities invading the screen body, and improve the stability and reliability of the screen body.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display module, its manufacturing method, and a display device. Background Technology

[0002] Organic light-emitting diodes (OLEDs) and flat panel displays based on light-emitting diodes (LEDs) are widely used in various consumer electronics products such as mobile phones, televisions, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body, and wide range of applications, becoming the mainstream of display devices.

[0003] However, current display devices are prone to problems such as screen failure. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a display module and its manufacturing method and display device that help reduce splicing gaps and improve display performance.

[0005] To achieve the above objectives, this application provides a display module comprising:

[0006] The first screen and the second screen are arranged side by side;

[0007] A polarizer is disposed on the light-emitting side of the first screen and the second screen, and the polarizer covers the first screen and the second screen;

[0008] A cover plate is disposed on the side of the polarizer away from the first screen and the second screen, and the cover plate covers the first screen and the second screen.

[0009] In one embodiment, the display module further includes:

[0010] An optical adhesive layer is disposed between the polarizer and the cover plate.

[0011] The polarizer and the cover plate are bonded together by the optical adhesive layer;

[0012] Preferably, the cover plate covers the polarizer;

[0013] Preferably, the area of ​​the optical adhesive layer is equal to the area of ​​the polarizer, and the optical adhesive layer is aligned with the polarizer.

[0014] In one embodiment, the first screen has a first display area and a first non-display area; the second screen has a second display area and a second non-display area; the display module further includes:

[0015] The first light-shielding layer is disposed on the side of the first screen body near the polarizer and is located in the first non-display area;

[0016] The second light-shielding layer is disposed on the side of the second screen body near the polarizer and is located in the second non-display area;

[0017] Preferably, the first light-shielding layer is disposed around the first display area;

[0018] Preferably, the material of the first light-shielding layer includes black pigment;

[0019] Preferably, the material of the first light-shielding layer includes a colloid;

[0020] Preferably, the first screen includes a first substrate and a first encapsulation layer disposed on one side of the first substrate, and the first light-shielding layer is disposed on the side of the first encapsulation layer away from the first substrate;

[0021] Preferably, the second light-shielding layer is disposed in the same layer as the first light-shielding layer;

[0022] Preferably, the second light-shielding layer is disposed around the second display area;

[0023] Preferably, the material of the second light-shielding layer includes black pigment;

[0024] Preferably, the material of the second light-shielding layer includes a colloid;

[0025] Preferably, the second screen includes a second substrate and a second encapsulation layer disposed on one side of the second substrate, and the second light-shielding layer is disposed on the side of the second encapsulation layer away from the second substrate.

[0026] In one embodiment, a first gap is formed between the first screen and the second screen; the display module further includes:

[0027] A filling structure is used to fill the first gap;

[0028] Preferably, the material of the filling structure includes black pigment;

[0029] Preferably, the material of the filling structure includes a colloid.

[0030] In one embodiment, the display module further includes:

[0031] The first support layer is disposed on the side of the first screen body away from the polarizer;

[0032] The second support layer is disposed on the side of the second screen body opposite to the polarizer;

[0033] A second gap is formed between the first support layer and the second support layer, and the filling structure fills the second gap.

[0034] In one embodiment, the display module further includes:

[0035] An electrostatic conductive structure is disposed within the filling structure;

[0036] Preferably, the electrostatic conductive structure includes conductive particles.

[0037] Preferably, the display module further includes:

[0038] A composite film layer is disposed on the side of the first screen and the second screen that is away from the polarizer; the composite film layer is in contact with the filling structure;

[0039] Preferably, the composite film layer comprises a conductive material.

[0040] In one embodiment, a gap is formed between the first screen and the second screen; the display module includes:

[0041] A light-shielding layer is disposed on the side of the first screen and the second screen near the polarizer;

[0042] A filling structure is provided in the gap;

[0043] A composite film layer is disposed on the side of the first screen and the second screen that is away from the polarizer;

[0044] The filling structure electrically connects the light-shielding layer and the composite film layer.

[0045] Based on the same inventive concept, this application also provides a method for manufacturing a display module, comprising:

[0046] The cover plate is attached to the polarizer;

[0047] A first screen and a second screen are arranged side by side on the side of the polarizer away from the cover plate, such that the polarizer covers the first screen and the second screen, and the cover plate covers the first screen and the second screen.

[0048] In one embodiment, bonding the cover plate to the polarizer includes:

[0049] The cover plate and the polarizer are bonded together using an optical adhesive layer;

[0050] Preferably, the optical adhesive layer and the polarizer have the same area and are aligned.

[0051] Preferably, after the first screen and the second screen are arranged side by side on the side of the polarizer away from the cover plate, the preparation method further includes: providing a filling structure in the gap formed between the first screen and the second screen;

[0052] Preferably, an electrostatic conduction structure is provided within the filling structure;

[0053] Preferably, after providing a filling structure in the gap formed between the first screen and the second screen, the preparation method further includes: attaching a composite film layer to the side of the first screen and the second screen away from the polarizer.

[0054] Preferably, the composite film layer is electrically connected to the filling structure.

[0055] Based on the same inventive concept, this application also provides a display device, which includes the above-described display module.

[0056] Compared with the prior art, the display module provided in this application can reduce the cumulative effect of bonding tolerance by setting an integrated polarizer and cover plate on the light-emitting side of the first screen and the second screen, which helps to reduce the width of the splicing gap of the screen. This can reduce a series of problems that may be caused by excessively wide gaps, such as reducing the space for moisture and dust to accumulate in the gaps, reducing the risk of impurities intruding into the screen, and improving the stability and reliability of the screen. Attached Figure Description

[0057] To more clearly illustrate the technical solutions in this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0058] Figure 1 This is a schematic diagram of the hierarchical structure of a display module provided in an embodiment of this application;

[0059] Figure 2 This is a schematic diagram of the hierarchical structure of a display module provided in another embodiment of this application;

[0060] Figure 3 This is a schematic diagram of the structure of a display module provided in another embodiment of this application;

[0061] Figure 4 This is a schematic diagram of the hierarchical structure of a display module provided in another embodiment of this application;

[0062] Figure 5 This is a schematic diagram of the hierarchical structure of a display module provided in another embodiment of this application;

[0063] Figure 6 This is a schematic diagram of the hierarchical structure of a display module provided in another embodiment of this application;

[0064] Figure 7 This is a schematic diagram of the hierarchical structure of a display module provided in another embodiment of this application;

[0065] Figure 8 This is a schematic diagram of the hierarchical structure of a display module provided in another embodiment of this application;

[0066] Figure 9 This is a schematic diagram of the hierarchical structure of a display module provided in another embodiment of this application;

[0067] Figure 10 A flowchart illustrating a method for preparing a display module according to another embodiment of this application.

[0068] Marker explanation:

[0069] 100. Display module;

[0070] 11. First screen; 111. First display area; 112. First non-display area; 113. First substrate; 114. First encapsulation layer; 12. Second screen; 121. Second display area; 122. Second non-display area; 123. Second substrate; 124. Second encapsulation layer; 13. Light-shielding layer; 131. First light-shielding layer; 132. Second light-shielding layer; 141. First support layer; 142. Second support layer;

[0071] 2. Polarizing film; 21. First polarizing film; 22. Second polarizing film;

[0072] 3. Cover plate;

[0073] 4. Optical adhesive layer;

[0074] 5. Filling structure; 51. First gap; 52. Second gap; 50. Electrostatic conduction structure;

[0075] 6. Composite film layer. Detailed Implementation

[0076] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0077] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0078] However, after long-term research, the inventors discovered that in the relevant vehicle dual-screen display structure, due to the ink screen printing tolerance on the cover plate, as well as the thickness tolerance of each film material and the accumulation of errors during the bonding process, unevenness at the splicing point is easily caused, which in turn increases the gap between the screens. Moisture and dust will accumulate in the gap and invade the screen from the side, which can easily cause the screen to fail.

[0079] Based on this, this application provides a display module solution, as detailed in the following embodiments.

[0080] Reference Figure 1 As shown, one embodiment of this application provides a display module 100, which includes a first screen 11 and a second screen 12 arranged side by side. The display module 100 also includes a polarizer 2, which is disposed on the light-emitting side of the first screen 11 and the second screen 12, and simultaneously covers the first screen 11 and the second screen 12. The display module 100 also includes a cover plate 3, which is disposed on the side of the polarizer 2 away from the first screen 11 and the second screen 12, and simultaneously covers the first screen 11 and the second screen 12.

[0081] It should be noted that, in the embodiments of this application, "the first component covering the second component" means that the orthographic projection of the second component in the vertical direction is within the orthographic projection range of the first component in the vertical direction. The area of ​​the first component is greater than or equal to the area of ​​the second component. The two components can be in a position of close contact or contact, or they can be arranged at intervals.

[0082] Specifically, the polarizer 2 is attached to the light-emitting side of the first screen 11 and the second screen 12, which are located within the coverage area of ​​the polarizer 2 and the cover plate 3. By providing an integrated polarizer 2 and an integrated cover plate 3 on the light-emitting side of the first screen 11 and the second screen 12, the cover plate 3 can be attached to the polarizer 2 first, and then attached to the first screen 11 and the second screen 12, which can reduce the bonding tolerance.

[0083] The display module 100 provided in this embodiment uses a shared polarizer 2 and cover plate 3 on the light-emitting side of the first screen 11 and the second screen 12. The polarizer 2 and cover plate 3 are integral structures. Compared with setting independent polarizers and independent cover plates on each screen, the cumulative effect of bonding tolerance can be reduced, which helps to reduce the width of the screen splicing gap. This can reduce a series of problems that may be caused by excessively wide gaps, such as reducing the space for moisture and dust to accumulate in the gaps, reducing the risk of impurities intruding into the screen, and improving the stability and reliability of the screen.

[0084] For example, the first screen 11 and the second screen 12 can be screens with the same structure and function, or screens with similar structure but different functions. For instance, the first screen 11 and the second screen 12 can be a touch screen with touch and display functions and a non-touch screen with only display function, respectively, thus forming a dual-screen display in the vehicle. Of course, the display module 100 can also include more screens such as a third screen, and share the polarizer 2 and cover plate 3 with the first screen 11 and the second screen 12 to form a multi-screen display side by side.

[0085] Reference Figure 2 As shown, in one embodiment, the display module 100 further includes an optical adhesive layer 4, which is disposed between the polarizer 2 and the cover plate 3, and the polarizer 2 and the cover plate 3 are bonded together by the optical adhesive layer 4.

[0086] Specifically, the cover plate 3 and the polarizer 2 are bonded together by the optical adhesive layer 4, and then bonded to the first screen body 11 and the second screen body 12 to form an integrated module structure, which can increase the strength and reduce the superposition of defects caused by individual film materials being bonded to the screen body separately.

[0087] Preferably, the cover plate 3 covers the polarizer 2. That is, the orthographic projection of the polarizer 2 in the vertical direction is located within the range of the orthographic projection of the cover plate 3 in the vertical direction. The area of ​​the cover plate 3 is larger than the area of ​​the polarizer 2.

[0088] Preferably, the area of ​​the optical adhesive layer 4 is equal to the area of ​​the polarizer 2, and the optical adhesive layer 4 and the polarizer 2 are aligned.

[0089] Reference Figure 3 , Figure 4As shown, in one embodiment, the first screen 11 has a first display area 111 and a first non-display area 112. The display module 100 also includes a first light-shielding layer 131, which is disposed on the side of the first screen 11 near the polarizer 2 and located in the first non-display area 112.

[0090] Optionally, the first non-display area 112 may be arranged around the first display area 111, and the first light-shielding layer 131 may cover the first non-display area 112. The first light-shielding layer 131 may also be arranged around the first display area 111.

[0091] Preferably, the material of the first light-shielding layer 131 includes black pigment, so that when the first screen body 11 is in the off state, the color of the first display area 111 and the first non-display area 112 are consistent, achieving a one-piece black effect.

[0092] Preferably, the material of the first light-shielding layer 131 includes a colloid. Specifically, the first light-shielding layer 131 is made of black adhesive.

[0093] Preferably, the first screen 11 includes a first substrate 113 and a first encapsulation layer 114 disposed on one side of the first substrate 113, and a first light-shielding layer 131 disposed on the side of the first encapsulation layer 114 away from the first substrate 113.

[0094] The first light-shielding layer 131 can replace part of the ink layer on the cover plate to prevent light leakage from the first display area 111.

[0095] Accordingly, the second screen 12 has a second display area 121 and a second non-display area 122. The display module 100 also includes a second light-shielding layer 132, which is disposed on the side of the second screen 12 near the polarizer 2 and located in the second non-display area 122.

[0096] Preferably, the second non-display area 122 may surround the second display area 121, and the second light-shielding layer 132 covers the second non-display area 122, and the second light-shielding layer 132 is also arranged around the second display area 121.

[0097] Preferably, the material of the second light-shielding layer 132 includes black pigment, so that when the second screen 12 is in the off state, the color of the second display area 121 is consistent with that of the second non-display area 122.

[0098] Preferably, the material of the second light-shielding layer 132 includes a colloid. Specifically, the second light-shielding layer 132 is made of black adhesive.

[0099] Preferably, the second screen 12 includes a second substrate 123 and a second encapsulation layer 124 disposed on one side of the second substrate 123, and a second light-shielding layer 132 disposed on the side of the second encapsulation layer 124 away from the second substrate 123.

[0100] The second light-shielding layer 132 can replace part of the ink layer on the cover plate to prevent light leakage from the second display area 121.

[0101] Reference Figure 4 , Figure 5 As shown, in one embodiment, a first gap 51 is formed between the first screen body 11 and the second screen body 12, and the display module 100 further includes a filling structure 5, which fills the first gap 51.

[0102] Preferably, the material filling structure 5 includes black pigment.

[0103] Preferably, the material of the filling structure 5 includes a colloid. Specifically, the filling structure 5 also uses black glue.

[0104] The first gap 51 between the first screen body 11 and the second screen body 12 is filled with a structure 5, such as black glue, which can prevent water vapor and dust from entering through the gap between the screen bodies, increase the strength of the module structure, improve the reliability and life of the screen body, and at the same time form an integrated black effect for vehicles.

[0105] Reference Figure 6 , Figure 7 As shown, in one embodiment, the display module 100 further includes a first support layer 141 and a second support layer 142. The first support layer 141 is disposed on the side of the first screen 11 away from the polarizer 2, and the second support layer 142 is disposed on the side of the second screen 12 away from the polarizer 2.

[0106] A second gap 52 is formed between the first support layer 141 and the second support layer 142, and the filling structure 5 also fills the second gap 52.

[0107] Reference Figure 8 As shown, in one embodiment, the display module 100 further includes an electrostatic conduction structure 50, which is disposed inside the filling structure 5. The electrostatic conduction structure 50 is electrically connected to both the first screen 11 and the second screen 12, and can conduct the static electricity accumulated on the first screen 11 and the second screen 12 outward to avoid damage to the screen circuitry caused by static electricity.

[0108] Preferably, the electrostatic conduction structure 50 is specifically a conductive particle, which is disposed within the filling structure 5. The conductive particles within the filling structure 5 can eliminate static electricity on the first screen 11 and the second screen 12.

[0109] Reference Figure 8 As shown, in one embodiment, the display module 100 further includes a composite film layer 6, which is disposed on the side of the first screen 11 and the second screen 12 opposite to the polarizer 2. The composite film layer 6 is in contact with the filling structure 5, which can conduct static electricity from the side of the screen to the composite film layer 6.

[0110] Preferably, the composite film layer 6 covers the first screen 11 and the second screen 12. The composite film layer 6 includes a conductive material and is connected to the circuit board (PCB). Static electricity conducted by the conductive particles in the filling structure 5 can be discharged to the circuit board through the composite film layer 6, thereby releasing static electricity.

[0111] Reference Figure 9 As shown, in another embodiment, a gap is formed between the first screen 11 and the second screen 12. The display module 100 includes a light-shielding layer 13, a filling structure 5, and a composite film layer 6. The light-shielding layer 13 is disposed on the side of the first screen 11 and the second screen 12 closest to the polarizer 2, the filling structure 5 is disposed in the gap, and the composite film layer 6 is disposed on the side of the first screen 11 and the second screen 12 opposite to the polarizer 2.

[0112] The filling structure 5 electrically connects the light-shielding layer 13 and the composite film layer 6 to form an electrostatic conduction path, thereby discharging and releasing the static electricity in the first screen 11 and the second screen 12 along the electrostatic conduction path of the light-shielding layer 13, the filling structure 5, and the composite film layer 6.

[0113] The light-shielding layer 13 is made of black adhesive, and conductive particles may be doped into the black adhesive as needed. The filling structure 5 is made of black adhesive doped with conductive particles. The composite film layer 6 includes a conductive material, such as copper foil. With this configuration, static electricity in the first screen 11 and the second screen 12 is conducted and released through the electrostatic conduction path formed by the light-shielding layer 13, the filling structure 5, and the composite film layer 6.

[0114] Specifically, black glue with conductive particles is filled in the gaps between adjacent screens. This can prevent light leakage and effectively isolate moisture and dust. At the same time, the conductive particles can guide the accumulated static electricity caused by the touch screen to the composite film layer 6 so that the discharged static electricity can dissipate.

[0115] The black adhesive involved in the embodiments of this application may contain a high molecular polymer as a matrix material, and may also contain pigments (such as carbon black) to achieve the function of blocking light.

[0116] Reference Figure 10 As shown, another embodiment of this application provides a method for manufacturing a display module, which includes the following steps:

[0117] Step S10: Attach the cover plate 3 and the polarizer 2 together;

[0118] Step S20: A first screen 11 and a second screen 12 are arranged side by side on the side of the polarizer 2 away from the cover plate 3, so that the polarizer 2 covers the first screen 11 and the second screen 12, and the cover plate 3 also covers the first screen 11 and the second screen 12.

[0119] The method for manufacturing the display module provided in this embodiment uses a shared polarizer 2 and cover plate 3 on the first screen 11 and the second screen 12. The polarizer 2 and cover plate 3 are integral structures. Compared with setting independent polarizers and cover plates on each screen, this method can reduce the cumulative effect of bonding tolerances, help reduce the width of the splicing gap between screens, and thus reduce a series of problems that may be caused by excessively wide gaps. For example, it reduces the space for moisture and dust to accumulate in the gaps, reduces the risk of impurities intruding into the screen, and improves the stability and reliability of the screen.

[0120] In one embodiment, step S10, attaching the cover plate 3 and the polarizer 2 together, includes:

[0121] Step S11: Bond the cover plate 3 and the polarizer 2 together using the optical adhesive layer 4.

[0122] Preferably, the area of ​​the optical adhesive layer 4 is equal to the area of ​​the polarizer 2, and the optical adhesive layer 4 and the polarizer 2 are aligned.

[0123] Preferably, after step S20, the preparation method further includes: step S30, providing a filling structure 5 in the gap formed between the first screen body 11 and the second screen body 12.

[0124] Preferably, an electrostatic conduction structure is provided inside the filling structure 5.

[0125] Preferably, after step S30, the preparation method further includes: step S40, attaching a composite film layer 6 to the side of the first screen 11 and the second screen 12 opposite to the polarizer 2.

[0126] Preferably, the composite film layer 6 is electrically connected to the filling structure 5. Another embodiment of this application provides a display device including the display module 100 from the above embodiments. This display device can be used on smart devices (such as mobile phones, VR devices, computers, televisions, in-vehicle displays, etc.).

[0127] In this embodiment, the display device incorporates an integrated polarizer 2 and cover plate 3 on the light-emitting side of the first screen 11 and the second screen 12. This reduces the cumulative impact of bonding tolerances and helps to reduce the width of the screen splicing gap. Consequently, it can reduce a series of problems that may be caused by excessively wide gaps, such as reducing the space for moisture and dust to accumulate in the gaps, reducing the risk of impurities intruding into the screen, and improving the stability and reliability of the screen.

[0128] Although this application has been described in conjunction with specific embodiments thereof, many substitutions, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description.

[0129] It should be noted that the above description describes some embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0130] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A display module, characterized in that, include: The first screen and the second screen are arranged side by side; A polarizer is disposed on the light-emitting side of the first screen and the second screen, and the polarizer covers the first screen and the second screen; A cover plate is disposed on the side of the polarizer away from the first screen and the second screen, the cover plate covers the first screen and the second screen, and a first gap is formed between the first screen and the second screen; A filling structure is used to fill the first gap; An electrostatic conductive structure is disposed within the filling structure; A composite film layer is disposed on the side of the first screen and the second screen away from the polarizer; the composite film layer includes a conductive material, and the composite film layer is in contact with and electrically connected to the filling structure.

2. The display module as described in claim 1, characterized in that, The display module also includes: An optical adhesive layer is disposed between the polarizer and the cover plate, and the polarizer and the cover plate are bonded together by the optical adhesive layer.

3. The display module as described in claim 2, characterized in that, The cover plate covers the polarizer.

4. The display module as described in claim 2, characterized in that, The area of ​​the optical adhesive layer is equal to the area of ​​the polarizer, and the optical adhesive layer is aligned with the polarizer.

5. The display module as described in claim 1, characterized in that, The first screen has a first display area and a first non-display area; the second screen has a second display area and a second non-display area; the display module further includes: The first light-shielding layer is disposed on the side of the first screen body near the polarizer and is located in the first non-display area; The second light-shielding layer is disposed on the side of the second screen body near the polarizer and is located in the second non-display area.

6. The display module as described in claim 5, characterized in that... The first light-shielding layer is disposed around the first display area.

7. The display module as described in claim 5, characterized in that, The material of the first light-shielding layer includes black pigment.

8. The display module as described in claim 5, characterized in that, The material of the first light-shielding layer includes a colloid.

9. The display module as described in claim 5, characterized in that, The first screen includes a first substrate and a first encapsulation layer disposed on one side of the first substrate, and the first light-shielding layer is disposed on the side of the first encapsulation layer away from the first substrate.

10. The display module as described in claim 5, characterized in that, The second light-shielding layer is disposed in the same layer as the first light-shielding layer.

11. The display module as described in claim 5, characterized in that, The second light-shielding layer is disposed around the second display area.

12. The display module as described in claim 5, characterized in that, The material of the second light-shielding layer includes black pigment.

13. The display module as described in claim 5, characterized in that, The material of the second light-shielding layer includes a colloid.

14. The display module as described in claim 5, characterized in that, The second screen includes a second substrate and a second encapsulation layer disposed on one side of the second substrate, and the second light-shielding layer is disposed on the side of the second encapsulation layer away from the second substrate.

15. The display module as described in claim 1, characterized in that, The material used to fill the structure includes black pigment.

16. The display module as described in claim 1, characterized in that, The material of the filling structure includes colloids.

17. The display module as described in claim 1, characterized in that, The display module also includes: The first support layer is disposed on the side of the first screen body away from the polarizer; The second support layer is disposed on the side of the second screen body opposite to the polarizer; A second gap is formed between the first support layer and the second support layer, and the filling structure fills the second gap.

18. The display module as described in claim 1, characterized in that, The electrostatic conductive structure includes conductive particles.

19. The display module as described in claim 1, characterized in that, The composite film layer covers the first screen and the second screen.

20. The display module as described in claim 1, characterized in that, The display module includes: A light-shielding layer is disposed on the side of the first screen and the second screen near the polarizer; A composite film layer is disposed on the side of the first screen and the second screen that is away from the polarizer; The filling structure electrically connects the light-shielding layer and the composite film layer.

21. A method for manufacturing a display module, characterized in that, include: The cover plate is attached to the polarizer; A first screen and a second screen are arranged side by side on the side of the polarizer away from the cover plate, such that the polarizer covers the first screen and the second screen, and the cover plate covers the first screen and the second screen. A filling structure is provided in the gap formed between the first screen and the second screen, and an electrostatic conduction structure is provided in the filling structure; A composite film layer is attached to the side of the first screen and the second screen that is away from the polarizer, and the composite film layer is electrically connected to the filling structure.

22. The method for preparing a display module as described in claim 21, characterized in that, The process of attaching the cover plate to the polarizer includes: The cover plate and the polarizer are bonded together using an optical adhesive layer.

23. The method for preparing the display module as described in claim 22, characterized in that, The optical adhesive layer has the same area as the polarizer and is aligned with it.

24. A display device, characterized in that, Includes the display module as described in any one of claims 1-20.

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