Display module, display device and mold

Abstract

The present application discloses a display module, a display device and a mold. The display module includes: a cover plate; a screen structure, which is arranged on one side of the cover plate; an auxiliary structure, which is arranged on the side of the screen structure away from the cover plate, and the outer side surface of the auxiliary structure, the outer side surface of the screen structure, the cover plate and the extended surface of the surface where the edge of the cover plate is located enclose a filling area; a filling material, which is arranged in the filling area and covers at least part of the side surface of the screen structure, and the filling material includes a first filling material surface in contact with the outer side edge of the auxiliary structure and a second filling material surface opposite to the first filling material surface, and in the direction from the cover plate to the screen structure, the second filling material surface is arranged obliquely in the direction away from the auxiliary structure.

Description

Technical Field

[0001] The present application belongs to the field of display technology, and in particular, relates to a display module, a display device and a mold. Background Art

[0002] Organic Light Emitting Diode (OLED) and flat panel display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc. due to their advantages such as high image quality, power saving, thin body and wide application range, becoming the mainstream in display devices.

[0003] However, the process performance of current OLED display products needs to be improved. Summary of the invention

[0004] The embodiments of the present application provide a display module, a display device and a mold, aiming to improve the manufacturing yield of the display module.

[0005] An embodiment of the first aspect of the present application provides a display module, including: a cover plate; a screen structure, which is arranged on one side of the cover plate; an auxiliary structure, which is arranged on the side of the screen structure away from the cover plate, and the outer side surface of the auxiliary structure, the outer side surface of the screen structure, the cover plate and the extended surface of the surface where the edge of the cover plate is located together form a filling area; a filling material, the filling material is arranged in the filling area and covers at least part of the side surface of the screen structure, the filling material includes a first filling material surface in contact with the outer edge of the auxiliary structure and a second filling material surface opposite to the first filling material surface, and in the direction from the cover plate to the screen structure, the second filling material surface is inclined in the direction away from the auxiliary structure.

[0006] According to the implementation of the first aspect of the present application, the filling material is in contact with the cover plate, and the angle formed between the second filling material surface and the surface of the cover plate close to the screen structure is between 90° and 110°.

[0007] According to any of the aforementioned embodiments of the first aspect of the present application, the angle formed between the second filling material surface and the cover plate is between 90° and 93°.

[0008] According to any of the aforementioned implementations of the first aspect of the present application, an orthographic projection of the filling material in the thickness direction of the display module is located within an orthographic projection of the cover plate in the thickness direction of the display module.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, the second filling material surface has a first edge on a side close to the cover plate, and the orthographic projection of the first edge in the thickness direction of the display module is spaced apart from the orthographic projection edge of the cover plate in the thickness direction of the display module, and / or, the second filling material surface has a second edge on a side facing away from the cover plate, and the orthographic projection of the second edge in the thickness direction of the display module at least partially overlaps with the orthographic projection edge of the cover plate in the thickness direction of the display module.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, the side of the filling material facing away from the cover plate has a third filling material surface connected to the second filling material surface, the third filling material surface and the surface of the cover plate facing the screen body structure have a first distance, the surface of the auxiliary structure facing away from the cover plate has a second distance from the surface of the cover plate facing the screen body structure, and the first distance is less than or equal to the second distance.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the first distance is the maximum distance between the surface of the third filling material and the surface of the cover plate facing the screen structure, and the second distance is the maximum distance between the surface of the auxiliary structure facing away from the cover plate and the surface of the cover plate facing the screen structure, or, the first distance is the average distance between the surface of the third filling material and the surface of the cover plate facing the screen structure, and the second distance is the average distance between the surface of the auxiliary structure facing away from the cover plate and the surface of the cover plate facing the screen structure.

[0012] According to any of the aforementioned implementations of the first aspect of the present application, the difference between the first distance and the second distance is less than or equal to 100 μm.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, the side of the filling material facing away from the cover plate has a third filling material surface connected to the second filling material surface, and at least a portion of the third filling material surface is recessed toward the cover plate.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, the auxiliary structure is ring-shaped.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, the auxiliary structure encloses a clearance space, and the filling material covers at least a portion of the side wall surface of the auxiliary structure facing away from the clearance space.

[0016] According to any of the aforementioned implementations of the first aspect of the present application, the display module has a display area and a non-display area arranged around the display area, and the auxiliary structure is arranged in the non-display area and around the display area.

[0017] According to any of the aforementioned embodiments of the first aspect of the present application, the width of the auxiliary structure is less than or equal to 0.5 mm.

[0018] According to any of the aforementioned embodiments of the first aspect of the present application, the side of the screen structure facing away from the cover plate has a first type of surface and a second type of surface, the distance between the first type of surface and the surface of the cover plate facing the screen structure is greater than the distance between the second type of surface and the surface of the cover plate facing the screen structure, the auxiliary structure includes a first section arranged on the first type of surface and a second section arranged on the second type of surface, and the size of the first section in the thickness direction of the display module is smaller than the size of the second section in the thickness direction of the display module.

[0019] According to any of the aforementioned embodiments of the first aspect of the present application, a surface of the first section facing away from the cover plate is coplanar with a surface of the second section facing away from the cover plate.

[0020] According to any of the aforementioned embodiments of the first aspect of the present application, part of the filling material extends to cover the first type of surface and / or the second type of surface.

[0021] According to any of the aforementioned embodiments of the first aspect of the present application, the minimum distance between the surface of the filling material facing away from the cover plate and the first type of surface is greater than or equal to 0.2 mm.

[0022] According to any of the aforementioned embodiments of the first aspect of the present application, the screen structure includes a display panel and a functional layer, the display panel includes a first main body portion, a second main body portion and a bending portion, the first main body portion is arranged on a side of the functional layer facing the cover plate, the second main body portion is arranged on a side of the functional layer away from the cover plate, the bending portion is connected between the first main body portion and the second main body portion, the first type of surface is a surface of the second main body portion on a side away from the cover plate, the second type of surface is a partial surface of the functional layer on a side away from the cover plate, and / or the orthographic projection of the second type of surface on the cover plate does not overlap with the orthographic projection of the second main body portion on the cover plate.

[0023] According to any of the aforementioned implementations of the first aspect of the present application, the orthographic projection of the functional layer on the cover plate is located within the orthographic projection of the display panel on the cover plate.

[0024] According to any of the aforementioned embodiments of the first aspect of the present application, part of the filling material extends to cover the functional layer and / or the surface of one side of the second main body portion facing away from the cover plate.

[0025] According to any of the aforementioned embodiments of the first aspect of the present application, the second section covers a portion of the side wall surface of the second main body and is connected to the first section.

[0026] According to any of the aforementioned embodiments of the first aspect of the present application, the second main body portion includes a panel body connected to the first main body portion and a shielding layer arranged on the side of the panel body facing away from the cover plate, and the first type of surface is the surface of the shielding layer facing away from the cover plate.

[0027] According to any of the aforementioned embodiments of the first aspect of the present application, part of the filling material extends to the surface of the side of the covering shielding layer facing away from the cover plate, and the minimum distance between the orthographic projection edge of the first section on the cover plate and the orthographic projection edge of the shielding layer on the cover plate is greater than or equal to 0.5 mm.

[0028] According to any of the aforementioned embodiments of the first aspect of the present application, the screen structure further includes a protective adhesive layer disposed on the side of the bending portion away from the functional layer, and the filling material covers at least a portion of the surface of the protective adhesive layer away from the bending portion.

[0029] According to any of the aforementioned implementations of the first aspect of the present application, the minimum distance between the protective adhesive layer and the surface of the second filling material is greater than or equal to 0.3 mm.

[0030] According to any of the aforementioned implementations of the first aspect of the present application, the screen structure further includes a filling glue filled between the bending portion and the functional layer.

[0031] According to any of the aforementioned embodiments of the first aspect of the present application, part of the filling material extends to the surface of the side of the covering functional layer facing away from the cover plate, and the minimum distance between the orthographic projection edge of the functional layer on the cover plate and the orthographic projection edge of the second section on the cover plate is greater than or equal to 0.3 mm.

[0032] According to any of the aforementioned embodiments of the first aspect of the present application, the functional layer includes a foam layer and a heat dissipation layer arranged on the side of the foam layer facing away from the cover plate, and the second type of surface is a partial surface of the heat dissipation layer facing away from the cover plate.

[0033] According to any of the aforementioned embodiments of the first aspect of the present application, part of the filling material extends to cover the surface of the side of the heat dissipation layer facing away from the cover plate, and the minimum distance between the orthographic projection edge of the heat dissipation layer on the cover plate and the orthographic projection edge of the second section on the cover plate is greater than or equal to 0.3 mm.

[0034] According to any of the aforementioned implementations of the first aspect of the present application, the material of the heat dissipation layer includes a metal material.

[0035] According to any of the aforementioned implementations of the first aspect of the present application, the material of the heat dissipation layer includes copper foil.

[0036] According to any of the aforementioned embodiments of the first aspect of the present application, the functional layer further includes a cushioning layer arranged between the heat dissipation layer and the second main body portion.

[0037] According to any of the aforementioned implementations of the first aspect of the present application, the auxiliary structure includes at least two auxiliary sub-sections stacked in a thickness direction of the display module.

[0038] According to any of the aforementioned implementations of the first aspect of the present application, the dimensions of each auxiliary sub-portion in the thickness direction of the display module are the same.

[0039] According to any of the aforementioned embodiments of the first aspect of the present application, the screen structure has a first type of surface and a second type of surface on the side facing away from the cover plate, the distance between the first type of surface and the cover plate is greater than the distance between the second type of surface and the cover plate, the auxiliary structure includes a first section arranged on the first type of surface and a second section arranged on the second type of surface, and the number of auxiliary sections in the first section is less than the number of auxiliary sections in the second section.

[0040] According to any of the aforementioned embodiments of the first aspect of the present application, the thixotropic index of the auxiliary section is greater than or equal to 3.

[0041] According to any of the aforementioned embodiments of the first aspect of the present application, part of the filling material extends to the surface of the cover plate facing the screen structure, and the minimum spacing between the orthographic projection edge of the screen structure in the thickness direction of the display module and the orthographic projection edge of the cover plate in the thickness direction of the display module is greater than or equal to 0.3 mm.

[0042] According to any of the aforementioned embodiments of the first aspect of the present application, the elongation at break of the auxiliary structure is greater than or equal to 70%, and / or the elongation at break of the filling material is greater than or equal to 70%.

[0043] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the auxiliary structure includes light-curing glue.

[0044] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the auxiliary structure includes at least one of epoxy glue, acrylic glue and silicone photocuring glue.

[0045] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the filling material includes at least one of thermosetting glue or light-curing glue.

[0046] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the filling material includes at least one of epoxy glue and acrylic glue.

[0047] According to any of the aforementioned embodiments of the first aspect of the present application, the thermal expansion coefficient of the auxiliary structure is a, the thermal expansion coefficient of the filling material is b, and the thermal expansion coefficient of the auxiliary structure and the thermal expansion coefficient of the filling material satisfy: |ab|≤b*5%.

[0048] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the auxiliary structure includes light-curing glue.

[0049] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the auxiliary structure includes at least one of epoxy glue, acrylic glue and silicone photocuring glue.

[0050] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the filling material includes at least one of thermosetting glue or light-curing glue.

[0051] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the filling material includes at least one of epoxy glue and acrylic glue.

[0052] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the auxiliary structure is the same as the material of the filling material.

[0053] An embodiment of a second aspect of the present application provides a display device, which includes a display module according to any of the above embodiments.

[0054] An embodiment of the third aspect of the present application provides a mold, comprising: a base plate; a enclosure, which is arranged on one side of the base plate and encloses a receiving space, the enclosure having a side block surface facing the receiving space, and in the direction from the base plate to the enclosure, the side block surface is inclined toward a side away from the receiving space, and the side block surface in the mold is used to contact the filling material of the display module.

[0055] According to an implementation of the third aspect of the present application, the angle formed between the side baffle surface and the bottom plate is between 90° and 110°.

[0056] According to any of the aforementioned embodiments of the third aspect of the present application, the angle formed between the side baffle surface and the bottom plate is between 90° and 93°.

[0057] According to any of the aforementioned embodiments of the third aspect of the present application, the enclosure includes a first baffle and a second baffle arranged on the side of the first baffle facing away from the bottom plate, the second baffle is arranged to protrude from the first baffle toward the accommodating space, and the side baffle surface is the surface of the second baffle facing the side of the accommodating space.

[0058] According to any of the aforementioned embodiments of the third aspect of the present application, the minimum distance between the orthographic projection of the edge of the first baffle plate facing the accommodating space on the bottom plate and the orthographic projection of the edge of the second baffle plate facing the accommodating space on the bottom plate is not less than 60 μm and / or not more than 80 μm.

[0059] According to any of the aforementioned embodiments of the third aspect of the present application, a functional groove is provided on the side of the bottom plate facing the enclosure, and the functional groove is connected to the accommodating space.

[0060] According to any of the aforementioned embodiments of the third aspect of the present application, the mold further includes a vibration mechanism disposed on one side of the bottom plate, the vibration mechanism being used to vibrate the bottom plate, and / or the mold further includes a heating mechanism disposed on one side of the bottom plate, the heating mechanism being used to heat the bottom plate.

[0061] According to any of the aforementioned embodiments of the third aspect of the present application, the mold further includes a demolding component, the bottom plate is provided with a through hole, the through hole is connected to the accommodating space, the demolding component includes a push rod movably arranged in the through hole and the accommodating space along the thickness direction of the bottom plate, and / or the demolding component is used to spray a demolding medium into the accommodating space through the through hole.

[0062] According to any of the aforementioned embodiments of the third aspect of the present application, the demoulding medium includes at least one of a gas or a liquid.

[0063] According to any of the aforementioned embodiments of the third aspect of the present application, the material of the base plate and / or the enclosure includes an elastic material.

[0064] According to any of the aforementioned embodiments of the third aspect of the present application, the Shore hardness of the enclosure is not less than A20 and not greater than A60.

[0065] According to any of the aforementioned embodiments of the third aspect of the present application, the material of the enclosure includes at least one of silicone and rubber.

[0066] According to any of the aforementioned embodiments of the third aspect of the present application, the bottom plate includes a base plate and a support plate arranged on a side of the base plate facing the enclosure, and the material of the support plate includes an elastic material.

[0067] According to any of the aforementioned implementations of the third aspect of the present application, the Shore hardness of the support plate is not less than A20 and not greater than A60.

[0068] According to any of the aforementioned embodiments of the third aspect of the present application, the material of the support plate includes at least one of silicone and rubber.

[0069] According to any of the aforementioned embodiments of the third aspect of the present application, the support plate is made of the same material as the enclosure.

[0070] An embodiment of the fourth aspect of the present application provides a preparation device, which includes a mold of any of the above-mentioned embodiments.

[0071] In a display module provided in an embodiment of the present application, the display module includes a cover plate, a screen structure, an auxiliary structure and a filling material. The screen structure is arranged on one side of the cover plate, the screen structure can be used to realize the luminous display of the display module, the cover plate can be used to protect the screen structure, and the light emitted by the screen structure can be transmitted outward through the cover plate.

[0072] The auxiliary structure is arranged on the side of the screen structure away from the cover plate. The area extending from the outer edge of the auxiliary structure toward the edge of the cover plate to the surface where the edge of the cover plate is located is the filling area. The filling material is arranged in the filling area and covers at least part of the side of the screen structure. The filling material can be used to protect the side of the screen structure.

[0073] During the preparation of the filling material, the auxiliary structure disposed on the side of the screen structure away from the cover plate can be used to participate in limiting the position of the material of the filling material, so that the material of the filling material can be better confined to the filling area, which can facilitate the preparation and molding of the filling material in the filling area. In addition, since the auxiliary structure can be used to participate in limiting the position of the material of the filling material, the structure in the mold used to participate in limiting the material of the filling material can be reduced, thereby reducing the contact area between the material of the filling material and the mold during the preparation of the filling material, so that the prepared filling material is not easy to be affected by the adhesive force of the mold during demolding and detached from the screen structure, which can facilitate the removal of the display module from the mold, so that the display module can have better structural reliability. In addition, it is also made so that the filling material is not easy to cause damage to the mold during demolding, so that the mold can still have good structural stability after multiple preparations.

[0074] The filling material includes a first filling material surface in contact with the outer side of the auxiliary structure and a second filling material surface opposite to the first filling material surface. In the direction from the cover plate to the screen structure, the second filling material surface is tilted in the direction away from the auxiliary structure, so that during the preparation of the filling material, the display module can be released from the mold along the direction from the cover plate to the screen structure, that is, the second filling material surface can be easily released from the mold along the direction from the cover plate to the screen structure, which can reduce the blocking effect of the mold on the filling material when the display module is demolded. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0076] Figure 1 is a structural schematic diagram of a display module provided in an embodiment of the present application;

[0077] Figure 2 is a partial cross-sectional view of a display module provided in an embodiment of the present application;

[0078] Figure 3 is a partial cross-sectional view of a display module and a mold provided in an embodiment of the present application;

[0079] Figure 4 is a partial cross-sectional view of a display module provided by another embodiment of the present application;

[0080] Figure 5 is a partial cross-sectional view of a display module and a mold provided by another embodiment of the present application;

[0081] Figure 6 is a partial cross-sectional view of a display module provided by yet another embodiment of the present application;

[0082] Figure 7 is a partial cross-sectional view of a display module and a mold provided in yet another embodiment of the present application;

[0083] Figure 8 is a partial cross-sectional view of a display module provided by another embodiment of the present application;

[0084] Fig. 9 is a partial cross-sectional view of a display module provided by another embodiment of the present application;

[0085] Fig.10 is a partial cross-sectional view of a display module provided by another embodiment of the present application;

[0086] Fig.11 is a partial cross-sectional view of a display module provided by another embodiment of the present application;

[0087] Fig.12 is a partial cross-sectional view of a display module provided by another embodiment of the present application;

[0088] Fig.13 It is a cross-sectional view of a mold provided in an embodiment of the present application.

[0089] Description of reference numerals: (n, m indicate angle, q indicates spacing)

[0090] 10. Display module;

[0091] 100, cover plate;

[0092] 200, screen structure; 201, first type of surface; 202, second type of surface; 210, display panel; 211, first main body; 212, second main body; 212a, panel body; 212b, shielding layer; 213, bending part; 220, functional layer; 221, foam layer; 222, heat dissipation layer; 223, cushioning layer; 230, protective adhesive layer; 240, filling adhesive;

[0093] 300, auxiliary structure; 300a, make way space; 300b, auxiliary subdivision; 301, outer side; 310, first subdivision; 320, second subdivision;

[0094] 400, filling material; 401, first filling material surface; 402, second filling material surface; 402a, first edge; 402b, second edge; 403, third filling material surface;

[0095] AA, display area; NA, non-display area;

[0096] F. Filling area;

[0097] D1, first distance; D2, second distance;

[0098] Z, thickness direction;

[0099] M. Mould;

[0100] M1, bottom plate; M1a, functional slot; M1b, through hole; M11, base plate; M12, support plate;

[0101] M2, enclosure; M2a, accommodation space; M2b, side baffle; M21, first baffle, M22, second baffle;

[0102] M3, vibration mechanism;

[0103] M4, heating mechanism;

[0104] M5, demoulding assembly; M51, ejector rod; M52, nozzle. DETAILED DESCRIPTION

[0105] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0106] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0107] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or another region, it may mean that it is directly on the other layer or another region, or that other layers or regions are included between it and the other layer or another region. Moreover, if the component is turned over, the layer or a region will be "below" or "beneath" another layer or another region.

[0108] The embodiments of the present application provide a display module, a display device and a mold. The embodiments of the display module, the display device and the mold will be described below in conjunction with the accompanying drawings.

[0109] Figure 1 is a structural schematic diagram of a display module 10 provided in an embodiment of the present application, Figure 2 is a partial cross-sectional view of a display module 10 provided in an embodiment of the present application. Figure 3 1 is a partial cross-sectional view of a display module 10 and a mold M provided in an embodiment of the present application. The Z direction in the figure may be the thickness direction Z of the display module 10. For example, Figure 2 An embodiment of the present application may provide Figure 1 Partial cross-sectional view at point i.

[0110] like Figures 1 to 3 As shown, an embodiment of the first aspect of the present application provides a display module 10, comprising: a cover plate 100; a screen structure 200, which is arranged on one side of the cover plate 100; an auxiliary structure 300, which is arranged on the side of the screen structure 200 away from the cover plate 100, the outer edge of the auxiliary structure 300, the outer edge of the screen structure 200, the cover plate 100 and the surface where the edge of the cover plate 100 is located enclosed to form a filling area, that is, the area extending from the outer edge 301 of the auxiliary structure 300 toward the edge of the cover plate 100 to the surface where the edge of the cover plate 100 is located is the filling area F; a filling material 400, the filling material 400 is arranged in the filling area F and covers at least part of the side of the screen structure 200, the filling material 400 includes a first filling material surface 401 in contact with the outer edge 301 of the auxiliary structure 300 and a second filling material surface 402 opposite to the first filling material surface 401, and in the direction from the cover plate 100 to the screen structure 200, the second filling material surface 402 is inclined in the direction away from the auxiliary structure 300.

[0111] In a display module 10 provided in an embodiment of the present application, the display module 10 includes a cover plate 100, a screen structure 200, an auxiliary structure 300, and a filling material 400. The screen structure 200 is disposed on one side of the cover plate 100, the screen structure 200 can be used to realize the luminous display of the display module 10, the cover plate 100 can be used to protect the screen structure 200, and the light emitted by the screen structure 200 can be transmitted outward through the cover plate 100.

[0112] Optionally, the display module 10 may have a display area AA and a non-display area NA, and the portion of the screen structure 200 located in the display area AA may be used for light-emitting display. Optionally, the non-display area NA may be arranged around the display area AA.

[0113] Optionally, the cover plate 100 may be disposed on the light-emitting side of the screen structure 200, and the cover plate 100 may be used to protect the light-emitting side of the screen structure 200. Optionally, the cover plate 100 may include a transparent material, for example, the cover plate 100 may include transparent glass, so that the cover plate 100 can protect the screen structure 200 while reducing the shading effect of the cover plate 100 on the screen structure 200.

[0114] Optionally, the orthographic projection of the screen structure 200 in the thickness direction Z of the display module 10 may be located within the orthographic projection of the cover plate 100 in the thickness direction Z of the display module 10 , so that the cover plate 100 may have a larger size to better protect the screen structure 200 .

[0115] The auxiliary structure 300 is arranged on the side of the screen structure 200 away from the cover plate 100. The area extending from the outer edge 301 of the auxiliary structure 300 toward the edge of the cover plate 100 to the surface where the edge of the cover plate 100 is located is the filling area F. The filling material 400 is arranged in the filling area F and covers at least part of the side of the screen structure 200. The filling material 400 can be used to protect the side of the screen structure 200.

[0116] For example, the filling material 400 can be used to limit the intrusion of water vapor into the screen structure 200 through the side of the screen structure 200. For example, the filling material 400 can be used to improve the bonding effect between the various film layers in the screen structure 200, and can be used to improve the bonding effect between the screen structure 200 and the cover plate 100, so that the various structures in the display module 10 are not easy to warp at the edges. For example, the filling material 400 can be used for anti-static to better improve the anti-static performance of the display module 10. For example, the filling material 400 can play a side protection role, so that when the display module 10 collides with other objects, the edge of the display module 10 is not easily damaged.

[0117] Optionally, the outer side 301 of the auxiliary structure 300 may refer to the surface of the auxiliary structure facing away from the display area AA.

[0118] During the preparation of the filling material 400, the auxiliary structure 300 disposed on the side of the screen structure 200 away from the cover plate 100 can be used to participate in limiting the position of the material of the filling material 400, so that the material of the filling material 400 can be better confined to the filling area F, which can facilitate the preparation and molding of the filling material 400 in the filling area F. In addition, since the auxiliary structure 300 can be used to participate in limiting the position of the material of the filling material 400, the structure in the mold M used to participate in limiting the material of the filling material 400 can be reduced, thereby reducing the contact area between the material of the filling material 400 and the mold M during the preparation of the filling material 400, so that the prepared filling material 400 is not easy to be separated from the screen structure 200 due to the adhesive force of the mold M during demolding, which can facilitate the removal of the display module 10 from the mold M, so that the display module 10 can have better structural reliability.

[0119] In addition, the filling material 400 is not likely to cause damage to the mold M during demoulding, so that the mold M can still have good structural stability after multiple preparations. For example, when the auxiliary structure 300 is provided to reduce the contact area between the filling material 400 and the mold M during the preparation of the filling material 400, the damage caused by the filling material 400 to the surface of the mold M during demoulding can be reduced, so that after multiple preparations, the surface of the mold M can still have a low degree of roughness, which can facilitate the removal of the display module 10 from the mold M.

[0120] Optionally, the auxiliary structure 300 may be disposed in the non-display area NA. During the preparation of the filling material 400 , the auxiliary structure 300 may be used to restrict the flow of the filling material 400 toward one side of the display area AA.

[0121] Optionally, the auxiliary structure 300 may be annular. Exemplarily, the auxiliary structure 300 may be disposed in the non-display area NA and surround the display area AA, so that during the preparation of the filling material 400, the auxiliary structure 300 may be used to restrict the filling material 400 around the display area AA from flowing toward the display area AA, and the filling material 400 may be formed at the edge of the non-display area NA around the display area AA.

[0122] Optionally, the auxiliary structure 300 encloses a clearance space 300a, and the filling material 400 covers at least a portion of the side wall surface of the auxiliary structure 300 on the side away from the clearance space 300a. By providing the auxiliary structure 300 to enclose a clearance space, the shielding effect of the auxiliary structure 300 on other structures can be reduced, and it is convenient to prepare other structures on the surface of the screen structure 200 on the side away from the cover plate 100.

[0123] Optionally, the outer side 301 may be a side wall surface of the auxiliary structure 300 facing away from the clearance space 300a.

[0124] Optionally, the width of the auxiliary structure 300 may be less than or equal to 0.5 mm, so that the auxiliary structure 300 is not prone to having too large a width, thereby reducing the area occupied by the auxiliary structure 300 in the non-display area NA of the display module 10 and facilitating the reduction of the frame of the display module 10 .

[0125] Optionally, the width of the auxiliary structure 300 may refer to the size of the auxiliary structure 300 in the direction from the display area AA to the non-display area NA, or may refer to the width of the orthographic projection of the auxiliary structure 300 on the cover plate 100 .

[0126] The filling material 400 includes a first filling material surface 401 in contact with the outer side 301 of the auxiliary structure 300 and a second filling material surface 402 opposite to the first filling material surface 401. In the direction from the cover plate 100 to the screen structure 200, the second filling material surface 402 is inclined in the direction away from the auxiliary structure 300, so that during the preparation of the filling material 400, the display module 10 can be released from the mold M along the direction from the cover plate 100 to the screen structure 200, that is, the second filling material surface 402 can be easily separated from the mold M along the direction from the cover plate 100 to the screen structure 200, which can reduce the blocking effect of the mold M on the filling material 400 when the display module 10 is demolded.

[0127] Optionally, the side of the filling material 400 facing away from the cover plate 100 has a third filling material surface 403 connected to the second filling material surface 402. Optionally, the edge of the third filling material surface 403 facing the auxiliary structure 300 may be connected to the first filling material surface 401, and the edge of the third filling material surface 403 away from the auxiliary structure 300 may be connected to the second filling material surface 402.

[0128] In some embodiments of the present application, by reasonably setting the inclination direction of the second filling material surface 402, the display module 10 can be removed from the mold M along the direction from the cover plate 100 to the screen structure 200. Therefore, during the preparation of the filling material 400, the side of the display module 10 to be prepared with the cover plate 100 facing the mold M, and then the display module 10 to be prepared can be placed in the mold M, so that the screen structure 200 in the display module 10 to be prepared can be located on the side of the cover plate 100 away from the bottom of the mold M, so that the filling material 400 can be prepared from the side of the display module 10 to be prepared with the screen structure 200, that is, the filling material 400 can fall directly on the display module 10 to be prepared along the side pointing from the screen structure 200 to the cover plate 100. At this time, the auxiliary structure 300 can limit the flow of the filling material 400 toward the side of the display area AA, and the mold M can limit the flow of the filling material 400 toward the side away from the display area AA. Therefore, after the filling material 400 is prepared and formed, in the process of removing the display module 10 from the mold M, only the second filling material surface 402 on the filling material 400 is in contact with the mold M, and the first filling material surface 401 and the third filling material surface 403 of the filling material 400 are not in contact with the mold M, so that the first filling material surface 401 and the third filling material surface 403 of the filling material 400 are not easily affected by the adhesive force of the mold M, so that the prepared filling material 400 is not easily affected by the adhesive force of the mold M during demolding and separated from the screen structure 200, which can facilitate the removal of the display module 10 from the mold M and enable the display module 10 to have better structural reliability.

[0129] In some optional embodiments, there is a first distance D1 between the third filling material surface 403 and the surface of the cover plate 100 facing the screen body structure 200, and there is a second distance D2 between the surface of the auxiliary structure 300 facing away from the cover plate 100 and the surface of the cover plate 100 facing the screen body structure 200, and the first distance D1 is less than or equal to the second distance D2.

[0130] Optionally, the first distance D1 is the maximum distance between the third filling material surface 403 and the surface of the cover plate 100 facing the screen structure 200, and the second distance D2 is the maximum distance between the surface of the auxiliary structure 300 facing away from the cover plate 100 and the surface of the cover plate 100 facing the screen structure 200.

[0131] Alternatively, the first distance D1 is the average distance between the third filling material surface 403 and the surface of the cover plate 100 facing the screen structure 200, and the second distance D2 is the average distance between the surface of the auxiliary structure 300 facing away from the cover plate 100 and the surface of the cover plate 100 facing the screen structure 200.

[0132] Optionally, the side of the cover plate 100 facing the screen structure 200 may have a flat surface and a curved surface, the first distance D1 may be the distance between the third filling material surface 403 and the surface of the cover plate 100 facing the screen structure 200, and the second distance D2 may be the distance between the surface of the auxiliary structure 300 facing away from the cover plate 100 and the surface of the cover plate 100 facing the screen structure 200.

[0133] In these optional embodiments, by setting the first distance D1 to be less than or equal to the second distance D2, during the preparation of the filling material 400, the material of the filling material 400 is not easy to overflow the auxiliary structure 300, which can reduce the impact of the filling material 400 on other structures in the display module 10 and facilitate the molding of the filling material 400.

[0134] Optionally, the difference between the first distance D1 and the second distance D2 is less than or equal to 100 μm, so that during the preparation process of the filling material 400 , the material of the filling material 400 is not easy to overflow the auxiliary structure 300 , and the filling material 400 can also have a larger size, thereby better improving the protection effect of the filling material 400 .

[0135] In some optional embodiments, such as Figure 2 and Figure 3 As shown, the third filling material surface 403 may be a plane, so that the filling material 400 may have a better size to protect the screen structure 200 and the cover plate 100 .

[0136] Figure 4 is a partial cross-sectional view of a display module 10 provided in another embodiment of the present application. Figure 5 1 is a partial cross-sectional view of a display module 10 and a mold M provided by another embodiment of the present application. For example, Figure 4 Another embodiment of the present application may provide Figure 1 Partial cross-sectional view at point i.

[0137] In some other optional embodiments, Figure 4 and Figure 5 As shown, at least a portion of the third filling material surface 403 may be recessed toward the cover plate 100 .

[0138] In this optional embodiment, when the filling material 400 is injected into the filling area F in the direction from the screen structure 200 to the cover plate 100 during the preparation of the filling material 400, the surface of the filling material 400 facing away from the cover plate 100 is prone to depression, so that the third filling material surface 403 on the prepared filling material 400 is prone to depression toward the cover plate 100. Exemplarily, under the influence of the force between the filling material 400 and the auxiliary structure 300 and the force between the filling material 400 and the mold M, the surface of the filling material 400 facing away from the cover plate 100 is prone to depression.

[0139] Optionally, the filling material 400 may be in contact with the cover plate 100, so that the filling material 400 may also be used to protect the cover plate 100. Exemplarily, the filling material 400 may be in contact with a surface of the cover plate 100 close to the screen structure 200.

[0140] In some optional embodiments, the angle formed between the second filling material surface 402 and the cover plate 100 is between 90° and 110°. For example, the angle formed between the second filling material surface 402 and the cover plate 100 may be 92°, 94°, 96°, 98°, 100°, 102°, 104°, 106° or 108°.

[0141] Exemplarily, the angle formed between the second filling material surface 402 and the cover plate 100 is between 90° and 93°. For example, the angle formed between the second filling material surface 402 and the cover plate 100 may be 91° or 92°.

[0142] Optionally, the angle formed between the second filling material surface 402 and the cover plate 100 may refer to the angle formed between the second filling material surface 402 and the surface of the cover plate 100 close to the screen structure 200. For example, n in the figure may indicate the angle formed between the second filling material surface 402 and the cover plate 100.

[0143] In these optional embodiments, by reasonably setting the angle formed between the second filling material surface 402 and the cover plate 100, the angle formed between the second filling material surface 402 and the cover plate 100 is not too large, so that the filling material 400 above the cover plate 100 can have a larger size to protect the screen structure 200 and the cover plate 100. By reasonably setting the angle formed between the second filling material surface 402 and the cover plate 100, the angle formed between the second filling material surface 400 and the cover plate 100 is not too small, so that the second filling material surface 402 can be easily separated from the mold M in the direction from the cover plate 100 to the screen structure 200, and the blocking effect of the mold M on the filling material 400 when the display module 10 is demolded can be reduced.

[0144] In some optional embodiments, the orthographic projection of the filling material 400 in the thickness direction Z of the display module 10 may be located within the orthographic projection of the cover plate 100 in the thickness direction Z of the display module 10 .

[0145] Optionally, the second filling material surface 402 has a first edge 402a on the side close to the cover plate 100, and the orthographic projection of the first edge 402a in the thickness direction Z of the display module 10 is spaced apart from the orthographic projection edge of the cover plate 100 in the thickness direction Z of the display module 10. This can facilitate the orthographic projection of the filling material 400 in the thickness direction Z of the display module 10 to be located within the orthographic projection of the cover plate 100 in the thickness direction Z of the display module 10, and can also facilitate the inclination of the second filling material surface 402 in the direction from the cover plate 100 to the screen structure 200 toward the direction away from the auxiliary structure 300.

[0146] Optionally, the second filling material surface 402 has a second edge 402b on the side facing away from the cover plate 100, and the orthographic projection of the second edge 402b in the thickness direction Z of the display module 10 at least partially overlaps with the orthographic projection edge of the cover plate 100 in the thickness direction Z of the display module 10, so that the filling material 400 can have a larger size on the cover plate 100, so as to enhance the protective effect of the filling material 400 on the screen structure 200 and the cover plate 100.

[0147] In these optional embodiments, by setting the orthographic projection of the filling material 400 in the thickness direction Z of the display module 10 to be within the orthographic projection of the cover plate 100 in the thickness direction Z of the display module 10, the filling material 400 is not easy to exceed the edge of the cover plate 100, which can facilitate the subsequent arrangement of other structures outside the filling material 400 and outside the cover plate 100, thereby reducing the interference effect of the filling material 400 on other structures. For example, the filling material 400 that does not exceed the edge of the cover plate 100 can facilitate the subsequent connection of the display module 10 with the middle frame.

[0148] Figure 6 is a partial cross-sectional view of a display module 10 provided in yet another embodiment of the present application. Figure 7 1 is a partial cross-sectional view of a display module 10 and a mold M provided in another embodiment of the present application. For example, Figure 6 An embodiment of the present application may provide Figure 1 Partial cross-sectional view at point j in the middle.

[0149] like Figure 6 and Figure 7As shown, in some optional embodiments, the side of the screen structure 200 facing away from the cover plate 100 has a first type of surface 201 and a second type of surface 202, the distance between the first type of surface 201 and the surface of the cover plate 100 facing the screen structure 200 is greater than the distance between the second type of surface 202 and the surface of the cover plate 100 facing the screen structure 200, the auxiliary structure 300 includes a first section 310 arranged on the first type of surface 201 and a second section 320 arranged on the second type of surface 202, and the size of the first section 310 in the thickness direction Z of the display module 10 is smaller than the size of the second section 320 in the thickness direction Z of the display module 10.

[0150] Optionally, the surface of the first sub-portion 310 facing away from the cover plate 100 is coplanar with the surface of the second sub-portion 320 facing away from the cover plate 100. Exemplarily, the surface of the first sub-portion 310 facing away from the cover plate 100 is coplanar with the surface of the second sub-portion 320 facing away from the cover plate 100, which may mean that the surface of the first sub-portion 310 facing away from the cover plate 100 and the surface of the second sub-portion 320 facing away from the cover plate 100 may be coplanar with respect to the same virtual plane.

[0151] Optionally, the first sub-section 310 may be connected to the second sub-section 320 so that the auxiliary structure 300 may have better continuity. Exemplarily, the portion of the second sub-section 320 connected to the first sub-section 310 may be formed integrally with the first sub-section 310 .

[0152] Optionally, part of the filling material 400 may extend to cover the first type of surface 201 and / or the second type of surface 202 , which can better increase the connection area between the filling material 400 and the screen structure 200 , so that the filling material 400 can better provide protection for the screen structure 200 .

[0153] Optionally, the minimum distance between the surface of the filling material 400 facing away from the cover plate 100 and the first type of surface 201 is greater than or equal to 0.2 mm, so that the filling material 400 covering the side of the screen structure 200 facing away from the cover plate 100 can have a better thickness, which can improve the connection effect between the filling material 400 and the screen structure 200, and enable the filling material 400 to better provide protection for the screen structure 200.

[0154] In these optional embodiments, the first type of surface 201 and the second type of surface 202 may be any two surfaces with a height difference on the side of the screen structure 200 facing away from the cover plate 100 . By setting the size of the first division 310 above the first surface 201 in the thickness direction Z of the display module 10 to be smaller than the size of the second division 320 above the second surface 202 in the thickness direction Z of the display module 10, that is, by setting a difference between the height of the first division 310 and the height of the second division 320, the height difference between the first division 310 and the second division 320 can better compensate for the height difference between the first surface 201 and the second surface 202, so that in the thickness direction Z of the display module 10, the surface of the first division 310 on the side away from the cover plate 100 and the surface of the second division 320 on the side away from the cover plate 100 can be located at an approximate or same height, so that in the preparation process of the filling material 400, the first division 310 and the second division 320 can limit the liquid level of the filling material 400 to be approximate or the same, which can facilitate the preparation of the filling material 400.

[0155] Figure 8 An embodiment of the present application may provide Figure 1 Partial cross-sectional view at k Figure 8 is a partial cross-sectional view of a display module 10 provided in another embodiment of the present application. Fig. 9 is a partial cross-sectional view of a display module 10 provided in another embodiment of the present application. Fig.10 FIG. 1 is a partial cross-sectional view of a display module 10 provided in another embodiment of the present application. For example, Figure 8 An embodiment of the present application may provide Figure 1 The local cross-sectional view at k in the figure, Fig. 9 Another embodiment of the present application may provide Figure 1 The local cross-sectional view at i in the figure, Fig.10 Another embodiment of the present application may provide Figure 1 Partial cross-sectional view at point j in the middle.

[0156] like Figures 8 to 10 As shown, in some optional embodiments, the screen structure 200 may include a display panel 210 and a functional layer 220 , and the display panel 210 may be used to realize the luminous display of the display module 10 .

[0157] Optionally, there are various types of display panel 210 . Exemplarily, the display panel 210 may be a display panel 210 based on OLED light emission or a display panel 210 based on LED light emission.

[0158] Optionally, the display panel 210 includes a first main body portion 211, a second main body portion 212 and a bending portion 213, the first main body portion 211 is arranged on the side of the functional layer 220 facing the cover plate 100, the second main body portion 212 is arranged on the side of the functional layer 220 away from the cover plate 100, and the bending portion 213 extends through the side wall surface of the functional layer 220 and is connected between the first main body portion 211 and the second main body portion 212.

[0159] The first main body 211 can be mainly used to realize the light-emitting display of the display module 10. For example, the first main body 211 can be used to realize the light-emitting display toward the side of the cover plate 100. The second main body 212 can be used to connect with other device structures to realize the light-emitting display of the first main body 211. For example, the second main body 212 can be used to connect with a driving chip, and the driving chip can be used to realize the light-emitting display of the first main body 211.

[0160] By providing the bending portion 213 , the second main body portion 212 can be bent to the side of the first main body portion 211 away from the cover plate 100 , thereby reducing the frame size of the display module 10 occupied by the second main body portion 212 and facilitating the reduction of the frame of the display module 10 .

[0161] Optionally, the orthographic projection of the functional layer 220 on the cover plate 100 may be located within the orthographic projection of the display panel 210 on the cover plate 100, so that the setting of the functional layer 220 is not likely to affect the bending of the bending portion 213, and it is also convenient for the filling material 400 to cover the edge of the first main body portion 211 that is not connected to the bending portion 213, so that the filling material 400 can better provide protection for the display panel 210.

[0162] Optionally, the first type of surface 201 may be the surface of the second main body 212 on the side facing away from the cover plate 100, and the second type of surface 202 may be the partial surface of the functional layer 220 on the side facing away from the cover plate 100, that is, there may be a height difference between the partial surface of the second main body 212 on the side facing away from the cover plate 100 and the partial surface of the functional layer 220 on the side facing away from the cover plate 100, the first division 310 may be arranged on the surface of the second main body 212 on the side facing away from the cover plate 100, and the second division 320 may be arranged on the partial surface of the functional layer 220 on the side facing away from the cover plate 100.

[0163] Optionally, part of the filling material 400 extends to the surface of the side of the covering functional layer 220 and / or the second main body 212 facing away from the cover plate 100, so that there can be a larger connection area between the filling material 400 and the screen structure 200, so that the filling material 400 can better provide protection for the screen structure 200.

[0164] Optionally, the orthographic projection of the second type of surface 202 on the cover plate 100 does not overlap with the orthographic projection of the second main body portion 212 on the cover plate 100, that is, the second type of surface 202 may be a surface of the functional layer 220 on the side facing away from the cover plate 100 and not located below the second main body portion 212, and the second branch 320 may not be located below the second main body portion 212, that is, the second branch 320 may be arranged on the surface of the functional layer 220 on the side facing away from the cover plate 100 that is not covered by the second main body portion 212.

[0165] Optionally, the second division 320 covers part of the side wall surface of the second main body portion 212 and is connected to the first division 310, so that the auxiliary structure 300 is not easily affected by the height difference between the functional layer 220 and the second division 320, and the auxiliary structure 300 can be relatively continuous at the edge of the second division 320, which can better enhance the limiting effect of the auxiliary structure 300 on the filling material 400.

[0166] In some optional embodiments, the second main body portion 212 may include a panel body 212a connected to the first main body portion 211 and a shielding layer 212b arranged on the side of the panel body 212a facing away from the cover plate 100. The shielding layer 212b can be used to participate in realizing electrostatic shielding and heat dissipation of the display module 10, thereby better protecting the components in the panel body 212a.

[0167] Optionally, the first type of surface 201 is the surface of the shielding layer 212 b facing away from the cover plate 100 , that is, the first section 310 may be disposed on the surface of the shielding layer 212 b facing away from the cover plate 100 .

[0168] Optionally, part of the filling material 400 may extend to cover the surface of the shielding layer 212b on the side facing away from the cover plate 100, so that the filling material 400 can be used to protect the shielding layer 212b. As an example, the minimum distance between the orthographic projection edge of the first sub-portion 310 on the cover plate 100 and the orthographic projection edge of the shielding layer 212b on the cover plate 100 is greater than or equal to 0.5 mm, so that there is a relatively sufficient spacing between the first sub-portion 310 and the edge of the shielding layer 212b, which can better increase the connection area between the filling material 400 and the surface of the shielding layer 212b on the side facing away from the cover plate 100, so that the filling material 400 can better protect the shielding layer 212b.

[0169] In some optional embodiments, the screen structure 200 further includes a protective adhesive layer 230 disposed on a side of the bending portion 213 away from the functional layer 220 , and the protective adhesive layer 230 can be used to protect the bending portion 213 .

[0170] Optionally, the filling material 400 may cover at least a portion of the surface of the protective adhesive layer 230 that is away from the bending portion 213 , so that the filling material 400 may also be used to protect the protective adhesive layer 230 .

[0171] Optionally, the minimum distance between the protective adhesive layer 230 and the second filling material surface 402 is greater than or equal to 0.3 mm, so that the filling material 400 covering the side of the screen structure 200 corresponding to the bending portion 213 can have a better width, so that the filling material 400 can have a better protective effect on the screen structure 200 corresponding to the bending portion 213.

[0172] Optionally, the screen structure 200 further includes a filling glue 240 filled between the bending portion 213 and the functional layer 220. The filling glue 240 can be used to fill the gap between the bending portion 213 and the functional layer 220, so that the corresponding position of the bending portion 213 has better structural stability.

[0173] In some optional embodiments, part of the filling material 400 extends to cover the surface of the functional layer 220 facing away from the cover plate 100, and the minimum distance between the orthographic edge of the functional layer 220 on the cover plate 100 and the orthographic edge of the second section 320 on the cover plate 100 is greater than or equal to 0.3 mm.

[0174] By reasonably setting the distance between the edge of the functional layer 220 and the edge of the second section 320, the functional layer 220 in the filling area F can expose more surface to facilitate coverage by the filling material 400, which can better improve the connection area between the filling material 400 and the functional layer 220, thereby better improving the protective effect of the filling material 400 on the functional layer 220.

[0175] In some optional embodiments, the functional layer 220 includes a foam layer 221 and a heat dissipation layer 222 disposed on the side of the foam layer 221 away from the cover plate 100. The foam layer 221 can be used to buffer impact and protect the screen structure 200, and the heat dissipation layer 222 can be used to assist the screen structure 200 in heat dissipation.

[0176] Optionally, the material of the heat dissipation layer 222 may include a metal material. For example, the material of the heat dissipation layer 222 may include a copper foil, so that the heat dissipation layer may have a better heat dissipation capability.

[0177] Optionally, the second type of surface 202 may be a partial surface of the heat dissipation layer 222 facing away from the cover plate 100. For example, there may be a height difference between the partial surface of the heat dissipation layer 222 facing away from the cover plate 100 and the partial surface of the second main body 212 facing away from the cover plate 100. The first division 310 may be arranged on the surface of the second main body 212 facing away from the cover plate 100, and the second division 320 may be arranged on the partial surface of the heat dissipation layer 222 facing away from the cover plate 100.

[0178] Optionally, part of the filling material 400 extends to cover the surface of the heat dissipation layer 222 facing away from the cover plate 100, and the minimum distance between the orthographic projection edge of the heat dissipation layer 222 on the cover plate 100 and the orthographic projection edge of the second subdivision 320 on the cover plate 100 is greater than or equal to 0.3 mm. By reasonably setting the distance between the edge of the heat dissipation layer 222 and the edge of the second subdivision 320, the heat dissipation layer 222 in the filling area F can expose more surface to facilitate the covering of the filling material 400, which can better improve the connection area between the filling material 400 and the heat dissipation layer 222, thereby better improving the protective effect of the filling material 400 on the heat dissipation layer 222.

[0179] Optionally, the functional layer 220 further includes a padding layer 223 disposed between the heat dissipation layer 222 and the second main body 212. The padding layer 223 can be used to support the second main body 212 and allow a certain gap between the second main body 212 and the first main body 211, so as to facilitate the arrangement of devices between the second main body 212 and the first main body 211.

[0180] In some optional embodiments, part of the filling material 400 extends to cover the surface of the cover plate 100 facing the screen structure 200, and the minimum spacing between the orthographic projection edge of the screen structure 200 in the thickness direction Z of the display module 10 and the orthographic projection edge of the cover plate 100 in the thickness direction Z of the display module 10 is greater than or equal to 0.3 mm.

[0181] By reasonably setting the distance between the edge of the screen structure 200 and the edge of the cover plate 100, the cover plate 100 in the filling area F can expose more surface to facilitate covering by the filling material 400, which can better improve the connection area between the filling material 400 and the cover plate 100, thereby better improving the protective effect of the filling material 400 on the cover plate 100.

[0182] In some embodiments of the present application, there are many ways to prepare the auxiliary structure 300. For example, the filling material 400 can be prepared by a 3D printing process. For example, the auxiliary structure 300 can be prepared by using piezoelectric valves, screw valves and other equipment.

[0183] Optionally, the filling material 400 may be prepared by stacking the materials of the filling material 400 multiple times through a 3D printing process.

[0184] Fig.11 is a partial cross-sectional view of a display module 10 provided in another embodiment of the present application. Fig.12 FIG. 1 is a partial cross-sectional view of a display module 10 provided in another embodiment of the present application. For example, Fig.11 Another embodiment of the present application may provide Figure 1 The local cross-sectional view at i in the figure, Fig.12 Another embodiment of the present application may provide Figure 1 Partial cross-sectional view at point j in the middle.

[0185] In some optional embodiments, such as Fig.11 and Fig.12 As shown, the auxiliary structure 300 includes at least two auxiliary sub-parts 300 b stacked in the thickness direction Z of the display module 10 .

[0186] Optionally, the auxiliary sub-section 300 b may be prepared by a 3D printing process, and the auxiliary structure 300 may be formed by stacking the auxiliary sub-sections 300 b.

[0187] Optionally, each auxiliary section 300 b may be formed in an integrated manner. For example, the auxiliary section 300 b may be in a strip shape. In a direction away from the cover plate 100 , each auxiliary section 300 b may be connected end to end in sequence.

[0188] Optionally, each auxiliary subdivision 300b can be continuously formed in one preparation by a 3D printing process. For example, the material of the auxiliary structure 300 can be reciprocally printed along the path where the auxiliary structure 300 needs to be placed by a 3D printing process to form a plurality of auxiliary subdivisions 300b stacked on each other, and each auxiliary subdivision 300b can be connected end to end in a direction away from the cover plate 100. Exemplarily, when the printing of the material of the auxiliary structure 300 is completed once along the path where the auxiliary structure 300 needs to be placed, the preparation of one auxiliary subdivision 300b can be achieved. At this time, the printing of the material of the auxiliary structure 300 can be continued without stopping, and the printing of the material of the auxiliary structure 300 can be completed again along the path where the auxiliary structure 300 needs to be placed to form another auxiliary structure 300. Since the printing process is continuous, each auxiliary subdivision 300b can be connected end to end in a direction away from the cover plate 100 and stacked on each other.

[0189] Optionally, the sizes of the auxiliary sub-parts 300 b in the thickness direction Z of the display module 10 are the same, which can improve the overall structural stability of the auxiliary structure 300 and facilitate the control of the height of the auxiliary structure 300 .

[0190] Optionally, the number of auxiliary divisions 300b in the first division 310 is smaller than the number of auxiliary divisions 300b in the second division 320, which can facilitate the realization that the height of the second division 320 is higher than the height of the first division 310, that is, the size of the first division 310 in the thickness direction Z of the display module 10 is smaller than the size of the second division 320 in the thickness direction Z of the display module 10.

[0191] In some embodiments of the present application, there are multiple ways to set the material of the auxiliary structure 300. For example, the material of the auxiliary structure 300 can be reasonably set to facilitate the preparation of the auxiliary structure 300 and enable the auxiliary structure 300 to have better structural strength and structural stability.

[0192] Optionally, the thixotropic index of the auxiliary section 300 b may be greater than or equal to 3.

[0193] Optionally, the elongation at break of the auxiliary structure 300 is greater than or equal to 70%.

[0194] Optionally, the tensile strength of the auxiliary structure 300 may be greater than 20 MPa.

[0195] Optionally, the Shore hardness of the auxiliary structure 300 may be between A60 and D70.

[0196] Optionally, the auxiliary structure 300 may have a temperature resistance between -40°C and 120°C.

[0197] Optionally, the material of the auxiliary structure 300 includes light-curing glue. Exemplarily, the material of the auxiliary structure 300 includes at least one of epoxy glue, acrylic glue and silicone light-curing glue.

[0198] In these optional embodiments, the auxiliary structure 300 can be easily prepared by properly setting the material of the auxiliary structure 300, and the auxiliary structure 300 can have good structural strength and structural stability. For example, by properly setting the material of the auxiliary structure 300, the auxiliary structure 300 can be well prepared by the 3D printing process, and the auxiliary structure 300 prepared by the 3D printing process can have good structural strength and structural stability.

[0199] In some optional embodiments, the thermal expansion coefficient of the auxiliary structure 300 is a, the thermal expansion coefficient of the filling material 400 is b, and the thermal expansion coefficient of the auxiliary structure 300 and the thermal expansion coefficient of the filling material 400 satisfy: |ab|≤b*5%.

[0200] In this optional embodiment, by reasonably setting the relationship between the thermal expansion coefficient of the auxiliary structure 300 and the thermal expansion coefficient of the filling material 400, it is not easy for the thermal expansion coefficient of the auxiliary structure 300 and the thermal expansion coefficient of the filling material 400 to have too large a difference, that is, the thermal expansion coefficient of the auxiliary structure 300 and the thermal expansion coefficient of the filling material 400 can be the same or relatively close, so that during the preparation and use of the display module 10, it is not easy for the auxiliary structure 300 and the filling material 400 to produce interface separation due to temperature changes, so that the auxiliary structure 300 and the filling material 400 can fit better, which can better improve the structural stability of the display module 10.

[0201] In some embodiments of the present application, there are multiple ways to set the material of the filling material 400. The material of the filling material 400 can be the same as that of the auxiliary structure 300, so that the thermal expansion coefficient of the auxiliary structure 300 can be the same as that of the filling material 400. Or the material of the filling material 400 can be different from that of the auxiliary structure 300.

[0202] Optionally, the thixotropic index of the filling material 400 may be greater than or equal to 3.

[0203] Optionally, the elongation at break of the filling material 400 is greater than or equal to 70%.

[0204] Optionally, the tensile strength of the filling material 400 may be greater than 20 MPa.

[0205] Optionally, the Shore hardness of the filling material 400 may be between D20 and D70.

[0206] Optionally, the temperature resistance of the filling material 400 may be between -40°C and 120°C.

[0207] Optionally, the viscosity of the filling material 400 may be less than 10,000 cps.

[0208] Optionally, the material of the filling material 400 includes at least one of thermosetting glue or light-curing glue. Exemplarily, the material of the filling material 400 includes at least one of epoxy glue and acrylic glue.

[0209] In these optional embodiments, the material of the filling material 400 can be reasonably set to facilitate the preparation of the filling material 400, and the filling material 400 can have good structural strength and structural stability. For example, by reasonably setting the material of the filling material 400, when the filling material 400 is prepared on the screen structure 200 and the cover plate 100, for example, when the filling material 400 is prepared on the screen structure 200 and the cover plate 100 using a piezoelectric valve, a screw valve or other equipment, the material of the filling material 400 can be well filled into the side wall gap of the screen structure 200, which can facilitate the preparation of the filling material 400, and the prepared filling material 400 can have good structural strength and structural stability.

[0210] The embodiment of the second aspect of the present application provides a display device, and the display device includes the display module 10 of any of the above-mentioned embodiments. Since the display device provided by the embodiment of the second aspect of the present application includes the display module 10 of any of the above-mentioned first aspects, the display device provided by the embodiment of the second aspect of the present application has the beneficial effects of the display module 10 of any of the above-mentioned first aspects, which will not be repeated here.

[0211] The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0212] Fig.13 It is a cross-sectional view of a mold M provided in an embodiment of the present application.

[0213] Please combine Figures 1 to 10 Also see Fig.13 An embodiment of the third aspect of the present application provides a mold M, comprising: a base plate M1; a baffle M2, which is arranged on one side of the base plate M1 and encloses a receiving space M2a, and the baffle M2 has a side baffle surface M2b on the side facing the receiving space M2a, and in the direction from the base plate M1 to the baffle M2, the side baffle surface M2b is inclined toward the side away from the receiving space M2a, and only the side baffle surface M2b in the mold M is used to contact the filling material 400 of the display module 10.

[0214] Optionally, the mold M provided in the embodiment of the third aspect of the present application can be used to participate in the preparation of the display module 10 in any of the aforementioned embodiments.

[0215] In a display module 10 provided in an embodiment of the present application, the mold M includes a bottom plate M1 and a fence M2. The bottom plate M1 can be used to support the cover plate 100 of the display module 10, that is, when the display module 10 is prepared using the mold M, the display module 10 to be prepared can be placed in the mold M with the side of the display module 10 provided with the cover plate 100 facing the mold M, so that the cover plate 100 can directly contact the bottom plate M1, so that during the preparation of the filling material 400, the material of the filling material 400 will not come into contact with the bottom plate M1, which can better reduce the contact area between the filling material 400 and the mold M during the preparation of the filling material 400, so that the prepared filling material 400 is not easy to be separated from the screen structure 200 due to the adhesive force of the mold M during demoulding, which can facilitate the removal of the display module 10 from the mold M, so that the display module 10 can have better structural reliability.

[0216] Optionally, in the display module 10 to be prepared referred to in the embodiment of the present application, the display module 10 to be prepared may include a cover plate 100 , a screen structure 200 and an auxiliary structure 300 , and the display module 10 to be prepared may not include a filling material 400 .

[0217] The enclosure M2 is disposed on one side of the bottom plate M1 and encloses a receiving space M2a, and the receiving space M2a can be used to receive the display module 10 to be prepared.

[0218] Optionally, the enclosure M2 and the bottom plate M1 may be a split structure, or the enclosure M2 may be formed integrally with at least a portion of the bottom plate M1, which is not specifically limited in this application. Exemplarily, the bottom plate M1 includes a base plate M11 and a support plate M12 disposed on the side of the base plate M11 facing the enclosure M2, the enclosure M2 may be disposed on the side of the support plate M12 facing away from the base plate M11, the enclosure M2 and the support plate M12 may be a split structure, or the enclosure M2 may be formed integrally with the support plate M12, which is not specifically limited in this application.

[0219] Optionally, the shape of the accommodating space M2a may be similar to or identical to the shape of the display module 10 to be prepared, so that the enclosure M2 can better restrict the movement of the display module 10 to be prepared.

[0220] Optionally, when the display module 10 is prepared using the mold M, an interference fit may be formed between the display module 10 to be prepared and the mold M. As an example, the size of the accommodating space M2a may be slightly smaller than the size of the cover plate 100 in the display module 10 to be prepared. For example, the enclosure M2 may be retracted by 0.05 mm to 0.1 mm relative to the cover plate 100 to facilitate the interference fit between the display module 10 to be prepared and the mold M.

[0221] The enclosure M2 has a side block surface M2b on the side facing the accommodating space M2a. In the mold M, only the side block surface M2b can be used to contact the filling material 400 of the display module 10, which can effectively reduce the contact area between the filling material 400 and the mold M during the preparation of the filling material 400, facilitate the removal of the display module 10 from the mold M, and effectively reduce the damage caused to the surface of the mold M by the filling material 400 during demolding, so that after multiple preparations, the surface of the mold M can still have a low degree of roughness, which can facilitate the removal of the display module 10 from the mold M.

[0222] Exemplarily, when the display module 10 is the display module 10 in any of the aforementioned embodiments, that is, when the display module 10 includes the auxiliary structure 300 in any of the aforementioned embodiments, during the preparation of the filling material 400, the auxiliary structure 300 can be used together with the side blocking surface M2b to participate in limiting the position of the filling material 400. For example, during the preparation of the filling material 400, the auxiliary structure 300 can be used to limit the flow of the filling material 400 toward one side of the display area AA, and under the limiting effect of the auxiliary structure 300, a first filling material surface 401 can be formed, and the first filling material surface 401 is attached to the auxiliary structure 300, and the side blocking surface M2b can be used to limit the flow of the filling material 400 toward the side away from the display area AA, and under the limiting effect of the side blocking surface M2b, a second filling material surface 402 can be formed, and the second filling material surface 402 is attached to the side blocking surface M2b, so that the filling material can be better confined to the filling area F in any of the aforementioned embodiments.

[0223] By arranging the side blocking surface M2b to be inclined toward the side away from the accommodating space M2a in the direction from the bottom plate M1 to the enclosure M2, during the preparation of the filling material 400, the display module 10 can be removed from the mold M in the direction from the cover plate 100 to the screen structure 200, that is, the second filling material surface 402 can be easily separated from the mold M in the direction from the cover plate 100 to the screen structure 200, which can reduce the blocking effect of the mold M on the filling material 400 when the display module 10 is demolded.

[0224] Optionally, when the display module 10 to be prepared is placed into the accommodating space M2a, the minimum distance between the surface of the enclosure M2 facing away from the bottom plate M1 and the bottom plate M1 may be greater than the minimum distance between the surface of the auxiliary structure 300 facing away from the bottom plate M1 and the bottom plate M1, so that the filling material 400 is not easy to overflow from the accommodating space M2a during the preparation of the filling material 400.

[0225] In some optional embodiments, the angle formed between the side block surface M2b and the bottom plate M1 is between 90° and 110°. For example, the angle formed between the side block surface M2b and the bottom plate M1 may be 92°, 94°, 96°, 98°, 100°, 102°, 104°, 106° or 108°.

[0226] Exemplarily, the angle formed between the side block surface M2b and the bottom plate M1 is between 90° and 93°. For example, the angle formed between the side block surface M2b and the bottom plate M1 may be 91° or 92°.

[0227] Optionally, the angle formed between the side block surface M2b and the bottom plate M1 may refer to the angle formed between the side block surface M2b and the surface of the bottom plate M1 on the side close to the side block surface M2b. For example, the angle formed between the side block surface M2b and the bottom plate M1 may refer to the angle formed between the side block surface M2b and the surface of the support plate M12 on the side facing away from the substrate M11. Exemplarily, m in the figure may indicate the angle formed between the side block surface M2b and the bottom plate M1.

[0228] Optionally, since the second filling material surface 402 is formed under the restriction of the side block surface M2b, the angle formed between the second filling material surface 402 and the cover plate 100 may be equal to the angle formed between the side block surface M2b and the bottom plate M1.

[0229] In some optional embodiments, the enclosure M2 may include a first baffle M21 and a second baffle M22 arranged on the side of the first baffle M21 facing away from the bottom plate M1, the second baffle M22 may be arranged to protrude from the first baffle M21 toward the accommodating space M2a, and the side baffle surface M2b is the surface of the second baffle M22 facing the side of the accommodating space M2a.

[0230] Optionally, the first baffle M21 and the second baffle M22 may be split structures, or the first baffle M21 and the second baffle M22 may be integrally formed, which is not specifically limited in the present application.

[0231] In these optional embodiments, when the display module 10 to be prepared is placed in the accommodation space M2a, the first baffle M21 can contact the cover plate 100 in the display module 10 to be prepared, and the second baffle M22 can be arranged to protrude from the first baffle M21 toward the accommodation space M2a, so that the second baffle M22 can be partially located above the cover plate 100 in the display module 10 to be prepared, so that the second baffle M22 can better restrict the display module 10 to be prepared from escaping from the accommodation space M2a. In addition, it is also convenient to prepare the second filling material surface 402 that is inclined and does not exceed the edge of the cover plate 100.

[0232] In some optional embodiments, the minimum distance between the orthographic projection of the edge of the first baffle M21 facing the accommodating space M2a on the bottom plate M1 and the orthographic projection of the edge of the second baffle M22 facing the accommodating space M2a on the bottom plate M1 is not less than 60 μm and / or not more than 80 μm.

[0233] Exemplarily, q in the figure may indicate the minimum distance between the orthographic projection of the edge of the first baffle M21 facing the accommodating space M2a on the bottom plate M1 and the orthographic projection of the edge of the second baffle M22 facing the accommodating space M2a on the bottom plate M1.

[0234] In this optional embodiment, by reasonably setting the minimum distance between the orthographic projection of the edge of the first baffle M21 on the side of the accommodation space M2a and the orthographic projection of the edge of the second baffle M22 on the side of the accommodation space M2a on the bottom plate M1, the value of q is not easy to be too large, so that the second baffle M22 is not easy to cause too much blocking effect on the display module 10 to be prepared, so that the display module 10 to be prepared can be squeezed into the accommodation space M2a. In addition, the value of q is not easy to be too small, so that it is easy to prepare the second filling material surface 402 with a good inclination, for example, it is easy to prepare the angle formed between the second filling material surface 402 and the cover plate 100 to be between 90° and 110°.

[0235] In some optional embodiments, a functional groove M1a is opened on the side of the base plate M1 facing the enclosure M2, and the functional groove M1a is connected to the accommodating space M2a. By opening the functional groove M1a on the base plate M1, when the display module 10 to be prepared is placed in the accommodating space M2a, the contact area between the base plate M1 and the display module 10 to be prepared can be reduced, thereby facilitating the subsequent demolding of the display module 10.

[0236] Optionally, the function slot M1a may be set through the bottom plate M1, or the function slot M1a may not be set through the bottom plate M1, which is not specifically limited in this application. When the function slot M1a may not be set through the bottom plate M1, it is convenient to set other components at the bottom of the bottom plate M1.

[0237] Optionally, the functional groove M1a may be provided through the support plate M12 , and / or the functional groove M1a may not extend to the substrate M11 , that is, the substrate M11 may not be provided with the functional groove M1a .

[0238] In some optional embodiments, the mold M further includes a vibration mechanism M3 disposed on one side of the bottom plate M1 , and the vibration mechanism M3 can be used to vibrate the bottom plate M1 .

[0239] Exemplarily, the vibration mechanism M3 may be disposed on a side of the bottom plate M1 away from the enclosure M2. For example, the vibration mechanism M3 may be disposed on a side of the base plate M11 away from the support plate M12.

[0240] By setting up a vibration mechanism M3 that can be used to vibrate the bottom plate M1, during the preparation process of the filling material 400, the vibration mechanism M3 can vibrate the bottom plate M1 to allow the filling material 400 to flow better, so that the filling material 400 can be better filled into the gaps between the screen structure 200 and the cover plate 100, and the filling material 400 can be better leveled, thereby better improving the protective effect of the filling material 400 on the screen structure 200 and the cover plate 100.

[0241] In some optional embodiments, the mold M further includes a heating mechanism M4 disposed on one side of the bottom plate M1 , and the heating mechanism M4 is used to heat the bottom plate M1 .

[0242] Exemplarily, the heating mechanism M4 may be disposed on a side of the bottom plate M1 away from the enclosure M2. For example, the heating mechanism M4 may be disposed on a side of the base plate M11 away from the support plate M12.

[0243] By setting up a heating mechanism M4 that can be used to heat the bottom plate M1, during the preparation process of the filling material 400, the heating mechanism M4 can heat the bottom plate M1 to better improve the flowability of the filling material 400, so that the filling material 400 can be better filled into the gaps between the screen structure 200 and the cover plate 100, and the filling material 400 can be better leveled, thereby better improving the protective effect of the filling material 400 on the screen structure 200 and the cover plate 100.

[0244] In some optional embodiments, the mold M further includes a demoulding component M5 , which can be used to assist in demoulding the display module 10 .

[0245] Optionally, the bottom plate M1 is provided with a through hole M1b, for example, the through hole M1b can be provided through the base plate M11 and the support plate M12. The through hole M1b is connected to the accommodation space M2a, and the demoulding assembly M5 can eject the display module 10 from the accommodation space M2a through the through hole M1b.

[0246] Exemplarily, the demolding assembly M5 may include a push rod M51 movably arranged in the through hole M1b and the accommodating space M2a along the thickness direction Z of the bottom plate M1. For example, the push rod M51 may be a threaded rod. When the display module 10 is demolded, the push rod M51 may move toward one side of the accommodating space M2a to eject the display module 10 from the accommodating space M2a, thereby realizing the demolding of the display module 10.

[0247] Exemplarily, the demolding component M5 is used to spray a demolding medium into the accommodating space M2a through the through hole M1b. For example, the demolding component M5 may include a nozzle M52. When the display module 10 is demolded, the nozzle M52 may spray a demolding medium into the display module 10 through the through hole M1b. The thrust when the demolding medium is sprayed may push the display module 10 out of the accommodating space M2a, thereby realizing the demolding of the display module 10.

[0248] Optionally, the demoulding medium includes at least one of a gas or a liquid.

[0249] In some optional embodiments, the material of the base plate M1 and / or the enclosure M2 includes elastic material.

[0250] Optionally, the Shore hardness of the enclosure M2 is not less than A20 and not greater than A60.

[0251] Optionally, the material of the enclosure M2 includes at least one of silicone and rubber.

[0252] Exemplarily, the material of the bottom plate M1 includes an elastic material, which may specifically mean that the material of the support plate M12 may include an elastic material.

[0253] Optionally, the Shore hardness of the support plate M12 is not less than A20 and not greater than A60.

[0254] Optionally, the material of the support plate M12 includes at least one of silicone and rubber.

[0255] Optionally, the support plate M12 is made of the same material as the enclosure M2.

[0256] In these optional embodiments, by reasonably setting the materials of the base plate M1 and the enclosure M2, when the display module 10 to be prepared is placed in the accommodating space M2a, the mold M can make relatively flexible contact with the display module 10 to be prepared, so that the display module 10 to be prepared can be pressed into the mold M easily, so that when the mold M and the display module 10 to be prepared are interference fit, the mold M is not easy to cause damage to the display module 10 to be prepared.

[0257] Optionally, the material of the substrate M11 may include glass material or stainless steel material, so that the substrate M11 can have good structural strength to support the support plate M12 , so that the mold M as a whole can better support the display module 10 .

[0258] In some embodiments of the present application, during the preparation of the display module 10, the cover plate 100 and the screen structure 200 may be cleaned first to remove impurities on the cover plate 100 and the screen structure 200. For example, the cover plate 100 and the screen structure 200 may be cleaned using plasma cleaning technology.

[0259] Then, the material of the auxiliary structure 300 is prepared on the side of the screen structure 200 away from the cover plate 100. For example, the material of the auxiliary structure 300 can be prepared on the side of the screen structure 200 away from the cover plate 100 using 3D printing technology.

[0260] Then, the material of the auxiliary structure 300 is cured to form the auxiliary structure 300 . For example, an ultraviolet curing process may be used to cure the material of the auxiliary structure 300 to form the auxiliary structure 300 .

[0261] Then, the display module 10 to be prepared, which includes the cover plate 100 , the screen structure 200 and the auxiliary structure 300 , can be pressed into the receiving space M2 a of the mold M.

[0262] Then, the filling material 400 is filled into the filling area F. Exemplarily, after the filling material 400 is filled into the filling area F, the vibration mechanism M3 can be used to vibrate the bottom plate M1, and the heating mechanism M4 can be used to heat the bottom plate M1, so as to better improve the flow performance of the filling material 400, so that the filling material 400 can be better filled into the gaps between the screen structure 200 and the cover plate 100, and the filling material 400 can be better leveled.

[0263] Then, the filling material 400 is cured to form the filling material 400 .

[0264] Finally, the display module 10 including the cover plate 100, the screen structure 200, the auxiliary structure 300 and the filling material 400 is demoulded. Exemplarily, a demoulding assembly M5 can be used to demould the display module 10 including the cover plate 100, the screen structure 200, the auxiliary structure 300 and the filling material 400.

[0265] The embodiment of the fourth aspect of the present application provides a preparation device, and the preparation device includes the mold M of any of the above-mentioned embodiments. Since the preparation device provided by the embodiment of the fourth aspect of the present application includes the display module 10 of any of the above-mentioned third aspects, the preparation device provided by the embodiment of the fourth aspect of the present application has the beneficial effects of the mold M of any of the above-mentioned third aspects, which will not be repeated here.

[0266] Optionally, the preparation device may include a power source, which can be used to drive at least one of the vibration mechanism M3, the heating mechanism M4 and the demolding assembly M5 in the mold M.

[0267] Optionally, the preparation equipment may include a control module, which can be used to control the operation of at least one of the vibration mechanism M3, the heating mechanism M4 and the demoulding component M5 in the mold M.

[0268] According to the embodiments of the present application as above, these embodiments do not describe all the details in detail, nor do they limit the invention to specific embodiments. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can make good use of the present application and the modifications based on the present application. The present application is only limited by the claims and their full scope and equivalents.

Claims

1. A display module, characterized in that: include: Cover plate; A screen structure is arranged on one side of the cover plate; An auxiliary structure is arranged on a side of the screen structure away from the cover plate, and the outer side surface of the auxiliary structure, the outer side surface of the screen structure, the cover plate and an extended surface of the surface where the edge of the cover plate is located enclose a filling area; A filling material is provided in the filling area and covers at least part of the side surface of the screen structure, wherein the filling material comprises a first filling material surface in contact with the outer side edge of the auxiliary structure and a second filling material surface opposite to the first filling material surface, and in a direction from the cover plate to the screen structure, the second filling material surface is inclined in a direction away from the auxiliary structure.

2. The display module according to claim 1, characterized in that: The filling material is in contact with the cover plate, and an angle formed between a surface of the second filling material and a surface of the cover plate close to the screen structure is between 90° and 110°; Preferably, the angle formed between the second filling material surface and the cover plate is between 90° and 93°.

3. The display module according to claim 1, characterized in that: The orthographic projection of the filling material in the thickness direction of the display module is located within the orthographic projection of the cover plate in the thickness direction of the display module; Preferably, the second filling material surface has a first edge on a side close to the cover plate, and the orthographic projection of the first edge in the thickness direction of the display module is spaced apart from the orthographic projection edge of the cover plate in the thickness direction of the display module, and / or, the second filling material surface has a second edge on a side away from the cover plate, and the orthographic projection of the second edge in the thickness direction of the display module at least partially overlaps with the orthographic projection edge of the cover plate in the thickness direction of the display module.

4. The display module according to claim 1, characterized in that: The side of the filling material facing away from the cover plate has a third filling material surface connected to the second filling material surface, a first distance exists between the third filling material surface and a surface of the cover plate facing the screen structure, a second distance exists between a surface of the auxiliary structure facing away from the cover plate and a surface of the cover plate facing the screen structure, and the first distance is less than or equal to the second distance; Preferably, the first distance is the maximum distance between the surface of the third filling material and the surface of the cover plate facing the screen structure, and the second distance is the maximum distance between the surface of the auxiliary structure facing away from the cover plate and the surface of the cover plate facing the screen structure, or the first distance is the average distance between the surface of the third filling material and the surface of the cover plate facing the screen structure, and the second distance is the average distance between the surface of the auxiliary structure facing away from the cover plate and the surface of the cover plate facing the screen structure; Preferably, the difference between the first distance and the second distance is less than or equal to 100 μm.

5. The display module according to claim 1, characterized in that: The side of the filling material facing away from the cover plate has a third filling material surface connected to the second filling material surface, and at least a portion of the third filling material surface is recessed toward the cover plate.

6. The display module according to claim 1, characterized in that: The auxiliary structure is ring-shaped; Preferably, the auxiliary structure encloses a clearance space, and the filling material covers at least a portion of a side wall surface of the auxiliary structure facing away from the clearance space; Preferably, the display module has a display area and a non-display area surrounding the display area, and the auxiliary structure is arranged in the non-display area and surrounds the display area; Preferably, the width of the auxiliary structure is less than or equal to 0.5 mm.

7. The display module according to claim 1, characterized in that: The screen structure has a first type of surface and a second type of surface on a side facing away from the cover plate, the distance between the first type of surface and the surface of the cover plate facing the screen structure is greater than the distance between the second type of surface and the surface of the cover plate facing the screen structure, the auxiliary structure includes a first sub-portion arranged on the first type of surface and a second sub-portion arranged on the second type of surface, the size of the first sub-portion in the thickness direction of the display module is smaller than the size of the second sub-portion in the thickness direction of the display module; Preferably, a surface of the first sub-portion facing away from the cover plate is coplanar with a surface of the second sub-portion facing away from the cover plate; Preferably, part of the filling material extends to cover the first type of surface and / or the second type of surface; Preferably, the minimum distance between the surface of the filling material facing away from the cover plate and the first type of surface is greater than or equal to 0.2 mm; Preferably, the screen structure includes a display panel and a functional layer, the display panel includes a first main body, a second main body and a bending portion, the first main body is arranged on a side of the functional layer facing the cover plate, the second main body is arranged on a side of the functional layer away from the cover plate, and the bending portion is connected between the first main body and the second main body. The first type of surface is the surface of the second main body portion facing away from the cover plate, the second type of surface is a partial surface of the functional layer facing away from the cover plate, and / or the orthographic projection of the second type of surface on the cover plate does not overlap with the orthographic projection of the second main body portion on the cover plate; Preferably, the orthographic projection of the functional layer on the cover plate is located within the orthographic projection of the display panel on the cover plate; Preferably, part of the filling material extends to cover the functional layer and / or a surface of a side of the second main body facing away from the cover plate; Preferably, the second sub-portion covers part of the side wall surface of the second main body and is connected to the first sub-portion; Preferably, the second main body portion includes a panel body connected to the first main body portion and a shielding layer provided on a side of the panel body away from the cover plate, and the first type of surface is a surface of the shielding layer away from the cover plate; Preferably, part of the filling material extends to cover the surface of the shielding layer facing away from the cover plate, and the minimum distance between the orthographic projection edge of the first section on the cover plate and the orthographic projection edge of the shielding layer on the cover plate is greater than or equal to 0.5 mm; Preferably, the screen structure further comprises a protective adhesive layer disposed on a side of the bent portion away from the functional layer, and the filling material covers at least a portion of a surface of the protective adhesive layer away from the bent portion; Preferably, the minimum distance between the protective adhesive layer and the second filling material surface is greater than or equal to 0.3 mm; Preferably, the screen structure further includes a filling glue filled between the bending portion and the functional layer; Preferably, part of the filling material extends to cover the surface of the functional layer facing away from the cover plate, and the minimum distance between the orthographic projection edge of the functional layer on the cover plate and the orthographic projection edge of the second section on the cover plate is greater than or equal to 0.3 mm; Preferably, the functional layer includes a foam layer and a heat dissipation layer arranged on a side of the foam layer away from the cover plate, and the second type of surface is a partial surface of the heat dissipation layer away from the cover plate; Preferably, part of the filling material extends to cover the surface of the heat dissipation layer facing away from the cover plate, and the minimum distance between the orthographic projection edge of the heat dissipation layer on the cover plate and the orthographic projection edge of the second section on the cover plate is greater than or equal to 0.3 mm; Preferably, the material of the heat dissipation layer includes a metal material; Preferably, the material of the heat dissipation layer includes copper foil; Preferably, the functional layer further includes a cushioning layer arranged between the heat dissipation layer and the second main body portion.

8. The display module according to any one of claims 1 to 7, characterized in that: The auxiliary structure comprises at least two auxiliary sub-sections stacked in the thickness direction of the display module; Preferably, the auxiliary sub-sections have the same size in the thickness direction of the display module; Preferably, the screen structure has a first type of surface and a second type of surface on a side facing away from the cover plate, the distance between the first type of surface and the cover plate is greater than the distance between the second type of surface and the cover plate, the auxiliary structure comprises a first subsection arranged on the first type of surface and a second subsection arranged on the second type of surface, and the number of the auxiliary subsections in the first subsection is less than the number of the auxiliary subsections in the second subsection; Preferably, the thixotropic index of the auxiliary portion is greater than or equal to 3.

9. The display module according to any one of claims 1 to 7, characterized in that: Part of the filling material extends to cover the surface of the cover plate facing the screen structure, and the minimum distance between the orthographic projection edge of the screen structure in the thickness direction of the display module and the orthographic projection edge of the cover plate in the thickness direction of the display module is greater than or equal to 0.3 mm.

10. The display module according to any one of claims 1 to 7, characterized in that: The elongation at break of the auxiliary structure is greater than or equal to 70%, and / or the elongation at break of the filling material is greater than or equal to 70%; Preferably, the material of the auxiliary structure includes light-curing glue; Preferably, the material of the auxiliary structure includes at least one of epoxy glue, acrylic glue and silicone photocurable glue; Preferably, the material of the filling material includes at least one of thermosetting glue or light-curing glue; Preferably, the material of the filling material includes at least one of epoxy glue and acrylic glue.

11. The display module according to any one of claims 1 to 7, characterized in that: The thermal expansion coefficient of the auxiliary structure is a, the thermal expansion coefficient of the filling material is b, and the thermal expansion coefficient of the auxiliary structure and the thermal expansion coefficient of the filling material satisfy: |ab|≤b*5%; Preferably, the material of the auxiliary structure includes light-curing glue; Preferably, the material of the auxiliary structure includes at least one of epoxy glue, acrylic glue and silicone photocurable glue; Preferably, the material of the filling material includes at least one of thermosetting glue or light-curing glue; Preferably, the material of the filling material includes at least one of epoxy glue and acrylic glue; Preferably, the material of the auxiliary structure is the same as that of the filling material.

12. A display device, characterized in that: Comprising the display module as described in any one of claims 1 to 11.

13. A mold, characterized in that: include: Base plate; A fence is arranged on one side of the base plate and encloses a storage space. The fence has a side block surface on the side facing the storage space. In the direction from the base plate to the fence, the side block surface is inclined toward the side away from the storage space, and the side block surface in the mold is used to contact the filling material of the display module.

14. The mold according to claim 13, characterized in that The angle formed between the side baffle surface and the bottom plate is between 90° and 110°; Preferably, the angle formed between the side baffle surface and the bottom plate is between 90° and 93°.

15. The mold according to claim 13, characterized in that The enclosure includes a first baffle and a second baffle arranged on a side of the first baffle away from the bottom plate, the second baffle is arranged to protrude from the first baffle toward the accommodation space, and the side baffle surface is a surface of the second baffle facing the accommodation space; Preferably, a minimum distance between an orthographic projection of an edge of the first baffle plate facing the accommodating space on the bottom plate and an orthographic projection of an edge of the second baffle plate facing the accommodating space on the bottom plate is not less than 60 μm and / or not more than 80 μm.

16. The mold according to claim 13, characterized in that A functional groove is formed on one side of the bottom plate facing the enclosure, and the functional groove is communicated with the accommodating space.

17. The mold according to claim 13, characterized in that The mold further comprises a vibration mechanism disposed on one side of the bottom plate, and the vibration mechanism is used for vibrating the bottom plate.

18. The mold according to claim 13, characterized in that The mold further comprises a heating mechanism arranged on one side of the bottom plate, and the heating mechanism is used for heating the bottom plate.

19. The mold according to claim 13, characterized in that: The mold further comprises a demoulding assembly, wherein the bottom plate is provided with a through hole, the through hole is communicated with the accommodating space, the demoulding assembly comprises a push rod movably arranged in the through hole and the accommodating space along the thickness direction of the bottom plate, and / or the demoulding assembly is used to spray a demoulding medium into the accommodating space through the through hole; Preferably, the demoulding medium includes at least one of gas or liquid.

20. The mold according to any one of claims 13 to 18, characterized in that The material of the base plate and / or the enclosure includes elastic material; Preferably, the Shore hardness of the enclosure is not less than A20 and not greater than A60; Preferably, the material of the enclosure includes at least one of silicone and rubber; Preferably, the bottom plate includes a base plate and a support plate arranged on a side of the base plate facing the enclosure, and the material of the support plate includes an elastic material; Preferably, the Shore hardness of the support plate is not less than A20 and not greater than A60; Preferably, the material of the support plate includes at least one of silicone and rubber; Preferably, the support plate is made of the same material as that of the enclosure.

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