Support structure, display module and preparation method thereof, and display device

Abstract

The application provides a support structure, a display module and a preparation method thereof, and a display device. The support structure is applied to the display module and comprises a support base and a filler. The support base has a receiving cavity, the filler is accommodated in the receiving cavity, and the filler can move from the receiving cavity to the outside of the support structure. The support structure can reduce the risk of deformation or even damage of the bending part of the display module when the bending part is extruded by external force, thereby reducing the probability of display panel display failure caused by deformation or damage of the bending part.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) display modules boast advantages such as high color gamut, flexibility, and fast response speed, and their market share is increasing year by year. Flexible displays are currently the mainstream trend in the display industry. Thanks to advancements in curved surface bonding technology, the bezels of displays in mobile devices such as smartphones and smartwatches have been further reduced, significantly increasing the screen-to-body ratio and thus enhancing the visual experience.

[0003] Currently, the screen structure of a display module generally includes a display section, a bending section, and a bonding section. The bonding section is stacked with the display section along the thickness direction of the display module and is connected to the display section through the bending section. However, in existing display modules, the bending section may deform or even be damaged, resulting in poor display performance. Summary of the Invention

[0004] The support structure, display module and its manufacturing method, and display device provided in this application aim to solve the problem that when existing display modules are subjected to external pressure, the bending part may deform or even be damaged, resulting in poor display of the display module.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a support structure for use in a display module, the support structure including a support base and a filler, the support base having a receiving cavity, the filler being housed in the receiving cavity, and the filler being movable from the receiving cavity to the outside of the support structure.

[0006] In one specific embodiment, the number of the receiving cavity is at least one, the receiving cavity includes a cavity opening, and the receiving cavity is connected to the outside through the cavity opening;

[0007] Preferably, the number of the receiving cavities is at least two, and the openings of the plurality of receiving cavities are located on the same side of the supporting base;

[0008] Preferably, the filler comprises an adhesive material;

[0009] Preferably, the width of the receiving cavity gradually decreases or gradually increases in the direction toward the cavity opening.

[0010] In one specific embodiment, the receiving cavity includes a first receiving cavity and a second receiving cavity; the filler includes a first filler and a second filler; the first filler fills the first receiving cavity; and the second filler fills the second receiving cavity.

[0011] Preferably, the receiving cavity further includes a third receiving cavity; the third receiving cavity is located between the first receiving cavity and the second receiving cavity, and the filling material further includes a third filling material; the third filling material fills the third receiving cavity;

[0012] Preferably, the first filler and the second filler are made of the same material, and the third filler is made of a different material than the first filler;

[0013] Preferably, the first filler and the second filler are grease-based adhesives;

[0014] Preferably, the third filler is an adhesive material, and the adhesive material has a viscosity of 100 cP-1000 cP.

[0015] In one specific embodiment, a blocking element is further included, the blocking element being disposed at the opening of the receiving cavity;

[0016] Preferably, the sealing element is a cured layer of the filler after curing;

[0017] Preferably, the thickness of the cured layer is 0.5-1 mm.

[0018] In one specific embodiment, the support substrate includes a first support layer, a second support layer, and an intermediate layer located between the first support layer and the second support layer; the intermediate layer has at least one through hole, which penetrates the intermediate layer along the thickness direction, and the through hole cooperates with the first support layer and the second support layer to form the receiving cavity.

[0019] Preferably, the intermediate layer includes an elastic layer;

[0020] Preferably, the elastic layer is a sponge layer;

[0021] Preferably, the inner wall of the receiving cavity is provided with a barrier membrane layer.

[0022] To solve the above-mentioned technical problems, another technical solution adopted in this application is to provide a display module, including a display panel and a support structure, wherein the support structure is the support structure mentioned above, and the support structure is disposed on the back of the display panel.

[0023] To solve the above-mentioned technical problems, another technical solution adopted in this application is: providing a display module, including: a display panel and a support assembly; the display panel includes a display part, a bending part and a bonding part connected in sequence; the bonding part is located on the back of the display part and is stacked with the display part along the thickness direction of the display module; the support assembly is disposed between the display part and the bonding part, and together with the bending part forms a first receiving cavity; the support assembly includes a shim structure, the shim structure being at least a portion of the filler material of the aforementioned support structure after it moves to the first cavity, and the filler material located in the first cavity solidifies to form a filling medium.

[0024] In one specific embodiment, it further includes:

[0025] The support assembly includes a support film, which includes a first support portion and a second support portion; the first support portion is located on the side of the display portion facing the bonding portion, and the second support portion is located on the side of the bonding portion facing the display portion; the elevation structure is at least one of the first support portion and the second support portion;

[0026] Alternatively, the support component may include a shim block, and the shim structure may be a shim block;

[0027] Alternatively, the support component may include a composite tape comprising a foam layer, a mesh adhesive layer, and a copper foil layer, wherein the shim structure is at least one of the foam layer and the copper foil layer;

[0028] Alternatively, the support assembly may include a support membrane, a shim block, and a composite tape, wherein the shim structure is any one or more of the support membrane, the shim block, and the composite tape.

[0029] In one specific embodiment, the filling medium fills at least 80% of the first cavity;

[0030] Preferably, the raised structure has a second cavity; the second cavity is a cavity after at least a portion of the filler in the receiving cavity has moved to the first cavity, and the second cavity is filled with the filling medium.

[0031] To solve the above-mentioned technical problems, another technical solution adopted in this application is: providing a method for manufacturing a display module, comprising:

[0032] A display body is provided; the display body includes a display panel and a support assembly; the display panel includes a display portion, a bending portion, and a bonding portion connected in sequence, the bonding portion being bent to the back of the display portion and stacked with the display portion in the thickness direction of the display module; the support assembly is disposed between the display portion and the bonding portion, and together with the bending portion, forms a hollow cavity; and the support assembly includes the support structure mentioned above; the opening of the receiving cavity of the support structure faces the hollow cavity;

[0033] A force is applied to the display body so that at least a portion of the filler in the receiving cavity is filled into the hollow cavity through the opening.

[0034] In one specific embodiment, after the step of applying force to the display body to cause at least a portion of the filler in the receiving cavity to fill the hollow cavity through the cavity opening, the method further includes: curing all the filler in the display body to form a filling medium, so that the hollow cavity becomes a first cavity;

[0035] Preferably, the filler is cured by photocuring or thermocuring.

[0036] Preferably, the filling medium fills at least 80% of the first cavity.

[0037] To solve the above-mentioned technical problems, another technical solution adopted in this application is to provide a display device, including the display module as described above, or the display module obtained by the manufacturing method of the display module described above.

[0038] The beneficial effects of this application are as follows: Unlike the prior art, this application provides a support structure, a display module, a method for manufacturing the same, and a display device. The support structure, applied to the display module, includes a support substrate and a filler. The support substrate has a receiving cavity, in which the filler is housed, and the filler can move from the receiving cavity to the outside of the support structure. Thus, when this support structure is applied to the display module, the filler within the support structure can move to the bending area of ​​the display module under external forces, providing support to the bending area and reducing the risk of deformation of the bent portion under external pressure. This effectively avoids display defects caused by deformation of the bent portion; furthermore, it also reduces the risk of damage caused by pressure on the bent portion. Furthermore, by using a filler sourced from the support structure applied to the display module, i.e., from the display module itself, the filler within the support structure can be directly squeezed into the bending area of ​​the display module during the manufacturing process to support the bending portion. Compared to existing technologies, this solution reduces related processes such as dispensing, is simple to operate, and has lower costs. Attached Figure Description

[0039] Figure 1a This is a schematic diagram of the support structure provided in one embodiment of this application;

[0040] Figure 1b This is a schematic diagram of the supporting structure shown in 1a, where the cavity is empty of any filling material.

[0041] Figure 1c for Figure 1b The diagram shows the structure of the through-hole in the intermediate layer;

[0042] Figure 2a This is a schematic diagram of the support structure provided in one embodiment of this application;

[0043] Figure 2b This is a schematic diagram of the supporting structure shown in 2a, where the cavity is empty of any filling material.

[0044] Figure 3a This is a schematic diagram of the structure of the support structure that accommodates the cavity provided in an embodiment of this application;

[0045] Figure 3b A schematic diagram of the structure after the cavity of the support structure shown in 3a is filled with filler material;

[0046] Figure 4a This is a schematic diagram of the support structure provided in one embodiment of this application;

[0047] Figure 4b for Figure 4a Top view of the middle layer of the supporting structure shown;

[0048] Figure 5 This is a schematic diagram of the structure of a display module provided in one embodiment of this application;

[0049] Figure 6a This is a schematic diagram of the structure of a display module without a filling medium in the first cavity provided in an embodiment of this application;

[0050] Figure 6b In order to be in Figure 6a The diagram shown is a schematic of the structure of the first cavity of the display module after it has been filled with the filling medium.

[0051] Figure 7a for Figure 6a The diagram shown is a structural schematic of the shim block in the display module;

[0052] Figure 7b for Figure 7a The diagram shows a structure in which the second cavity of the raised block is not filled with a medium.

[0053] Figure 8 Provided for an embodiment of this application Figure 6b A schematic diagram of the structure of the second cavity on the raised block;

[0054] Figure 9 Provided for an embodiment of this application Figure 6b The diagram shown is a cross-sectional view of the module along the plane containing the intermediate layer.

[0055] Figure 10 A simplified structural diagram of a display device provided in an embodiment of this application;

[0056] Figure 11 A flowchart illustrating a method for fabricating a display module according to an embodiment of this application;

[0057] Figure 12 This is a schematic diagram of the structure of a display module before bending, provided in one embodiment of this application;

[0058] Figure 13 This is a schematic diagram of the structure of a display module after bending, according to an embodiment of this application;

[0059] Explanation of icon numbers:

[0060] 100-Display module; 1-Support structure; 2-Display panel; 3-Support film; 4-Elevating block; 5-Composite tape; 6-Polarizing film; 7-Circuit board; 8-Chip; 9-Protective layer; 11-Supporting substrate; 12-Fill; 13-First support layer; 14-Second support layer; 15-Intermediate layer; 16-Adhesive layer; 21-Display part; 22-Bending part; 23-Bonding part; 31-First support part; 32-Second support part; 10-Receiving cavity; 20-First cavity; 30-Second cavity Cavity; 40-Hollow cavity; 41-Filling medium; 101-First receiving cavity; 102-Second receiving cavity; 103-Third receiving cavity; 121-First filler; 122-Second filler; 123-Third filler; 150-Through hole; 151-Elastic layer; 152-Filling layer; 153-Curing layer; 301-First sub-cavity; 302-Second sub-cavity; 303-Third sub-cavity; 411-First medium section; 412-Second medium section; 413-Third medium section. Detailed Implementation

[0061] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0062] The terms "first," "second," and "third" in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0063] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0064] In related technologies, the display panel in a flexible display module includes a display section, a bending section, and a bonding section connected in sequence. After the display panel is bent, the film layer structure between the display section and the bonding section, together with the bending section, forms a hollow structure. Because the inside of the bending section is a hollow structure, when the display module is subjected to external pressure, such as vertical pressure on the bonding section, the suspended bending section is prone to deformation under the action of external force, resulting in poor display of the display panel; even when the external force exceeds 3 kgf, it can cause damage to the bending section, affecting the normal function of the display module.

[0065] Based on this, embodiments of this application provide a support structure, a display module and its manufacturing method, and a display device. The support structure can reduce the risk of deformation or even damage to the bent portion when subjected to external force, thereby reducing the probability of display panel malfunctions caused by deformation or damage to the bent portion.

[0066] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0067] Please see Figure 1a and Figure 1b , Figure 1a This is a schematic diagram of the support structure provided in one embodiment of this application; Figure 1b The diagram shown in Figure 1a illustrates a support structure without filler material within its accommodating cavity. In this embodiment, a support structure 1 is provided, which can be applied to a display module 100. The support structure 1 includes a support base 11 and filler material 12. The support base 11 has an accommodating cavity 10, and the filler material 12 is housed within the accommodating cavity 10. When a force is applied to the support base 11, at least a portion of the filler material 12 within the accommodating cavity 10 can move from the accommodating cavity 10 to the outside of the support structure 1. Specifically, when the support structure 1 is subjected to external forces, such as pressure, the filler material 12 within the accommodating cavity 10 is compressed and can move to the outside of the support structure 1. Alternatively, other methods can be used to move the filler material 12 to the outside, such as gravity or temperature.

[0068] Thus, when the support structure 1 is applied to the display module 100, since the display module 100 needs to be compressed during bonding bending, the filler 12 in the support structure 1 can be moved to the bending area of ​​the display module 100 under force, thereby providing support to the bending area of ​​the display module 100 and reducing the bending portion 22 of the display module 100 (see...). Figure 5 This reduces the risk of deformation under external pressure, thus avoiding display defects in the display panel 2 caused by deformation of the bending portion 22. Furthermore, it also reduces the risk of damage to the bending portion 22 due to pressure. Additionally, by using the filler 12 from the support structure 1 applied to the display module 100 itself, during the manufacturing process of the display module 100, external force can directly compress the support structure 1, allowing the filler 12 within the support structure 1 to directly enter the bending area of ​​the display module 100 to support the bending portion 22. Compared to existing technologies, this solution reduces the need for dispensing and other related processes in the bending area, simplifying operation and reducing costs.

[0069] like Figure 1b As shown, in some embodiments, the number of receiving cavities 10 is at least one, and each receiving cavity 10 also includes a cavity opening. The receiving cavity 10 is specifically connected to the outside through the cavity opening. When the number of receiving cavities 10 is multiple, that is, at least two, the cavity openings of all receiving cavities 10 on the support structure 1 are located on the same side of the support base 11. In this way, the filling material 12 in the support structure 1 can move to the outside of the support structure 1 in the same direction, so that when the support structure 1 is applied to the display module 100, it can fill the area of ​​a specific side of the display module 100, avoiding the occurrence of contamination of other areas of the display module 100.

[0070] The filler 12 is preferably a liquid filler to ensure that it has a certain degree of fluidity and can more easily flow out of the receiving cavity 10 when squeezed by external force. Specifically, the liquid filler 12 is preferably an adhesive. Of course, the filler 12 can also be other materials such as pastes, semi-solids, fluids, or semi-fluids with certain flow properties.

[0071] See Figure 2a and Figure 2b , Figure 2a This is a schematic diagram of the support structure provided in one embodiment of this application; Figure 2bThis is a schematic diagram of the supporting structure shown in Figure 2a without any filler material inside the cavity. In some embodiments, the thickness d of the cavity 10 gradually increases along the direction towards the cavity opening, so as to better drive the filler material 12 inside the cavity 10 towards the cavity opening when the supporting structure 1 is compressed, thereby improving the filling effect of the filler material 12 on the bending area of ​​the display module 100. Of course, in some other embodiments, the thickness d of the cavity 10 may also gradually decrease along the direction towards the cavity opening, so as to improve the compression effect of the supporting structure 1 on the filler material 12 when compressed by external force. Here, the thickness d of the cavity 10 refers to the dimension of the cavity along the thickness direction Z. Specifically, the cross-section of the cavity 10 along the thickness direction Z may be trapezoidal.

[0072] In some embodiments, the width of the receiving cavity 10 gradually decreases along the direction toward the cavity opening, so as to better drive the filler 12 within the receiving cavity 10 toward the cavity opening when the support structure 1 is compressed, thereby improving the filling effect of the filler 12 on the bending area of ​​the display module 100. Of course, in some other embodiments, the width of the receiving cavity 10 may also gradually increase along the direction toward the cavity opening, so as to improve the compression effect of the support structure 1 on the filler 12 when compressed by external force. Here, the width of the receiving cavity 10 refers to the dimension of the receiving cavity 10 along the second direction Y. Specifically, the cross-section of the receiving cavity 10 along its thickness direction Z may be trapezoidal.

[0073] In some embodiments, see Figure 3a and Figure 3b , Figure 3a This is a schematic diagram of the structure of the support structure that accommodates the cavity provided in an embodiment of this application; Figure 3b This is a schematic diagram of the structure of the support structure shown in 3a after filling the cavity with filler material. The cavity 10 may include a first cavity 101, a second cavity 102, and a third cavity 103 spaced apart; and each of the first cavity 101, the second cavity 102, and the third cavity 103 has an opening, and the openings of the first cavity 101, the second cavity 102, and the third cavity 103 are located on the same side of the support base 11. Specifically, along the second direction Y, which is perpendicular to the first direction X and the thickness direction Z, the second cavity 102 is located on one side of the first cavity 101, and the third cavity 103 is located between the first cavity 101 and the second cavity 102.

[0074] like Figure 3a and 3bAs shown, in this embodiment, the filler 12 includes a first filler 121, a second filler 122, and a third filler 123. The first filler 121 fills the first receiving cavity 101, the second filler 122 fills the second receiving cavity 102, and the third filler 123 fills the third receiving cavity 103. It can be understood that since the first receiving cavity 101, the second receiving cavity 102, and the third receiving cavity 103 all have openings, after a force is applied to the display body, at least a portion of the first filler 121, at least a portion of the second filler 122, and at least a portion of the third filler 123 can move from the openings to the outside of the support structure 1 under external pressure.

[0075] Furthermore, the first filler 121 and the second filler 122 are made of the same material, while the third filler 123 is made of a different material than the first filler 121. Specifically, the third filler 123 is an adhesive material with a viscosity of 100 cP-1000 cP to ensure that the third filler 123 has good flow properties, facilitating better filling of bending areas later. For example, the viscosity of the third filler 123 can be 200 cP, 300 cP, 400 cP, 500 cP, 600 cP, 700 cP, 800 cP, 900 cP, etc. The adhesiveness of the first filler 121 and the second filler 122 can be greater than that of the third filler 123, so as to minimize the probability of the first filler 121 and the second filler 122 overflowing from both ends of the display module 100 along the second direction Y after the support structure 1 is applied to the display module 100 and the first filler 121 and the second filler 122 move to the bending area of ​​the display module 100.

[0076] Specifically, the first filler 121 and the second filler 122 are grease-based adhesives. In this way, the filling medium formed after the first filler 121 and the second filler 122 are cured can be used to prevent external moisture or grease from entering the interior of the display module 100.

[0077] Of course, in some other embodiments, the receiving cavity 10 may only include the third receiving cavity 103, and the filler 12 may only include the third filler 123; or the receiving cavity 10 may include the third receiving cavity 103 and the first receiving cavity 101, and the filler 12 may include the third filler 123 and the first filler 121; or the receiving cavity 10 may include the third receiving cavity 103 and the second receiving cavity 102, and the filler 12 may include the third filler 123 and the second filler 122; or the receiving cavity 10 may include the first receiving cavity 101 and the second receiving cavity 102, and both the first receiving cavity 101 and the second receiving cavity 102 may be filled with the third filler 123. In other embodiments, the first filler 121 and the second filler 122 may also be different adhesive materials. In addition, the first receiving cavity 101, the second receiving cavity 102 and the third receiving cavity 103 may all be filled with the same adhesive material, such as the third filler 123 described above.

[0078] See Figure 4a and Figure 4b , Figure 4a This is a schematic diagram of the support structure provided in one embodiment of this application; Figure 4b for Figure 4a The diagram shows a top view of the intermediate layer of the support structure. The support structure 1 may also include a sealing element disposed at the opening of the receiving cavity 10 to seal the opening of the receiving cavity 10 and prevent uncured filler 12 from flowing out of the opening. Figure 4b As shown, in this embodiment, sealing elements are provided at the openings of the first receiving cavity 101, the second receiving cavity 102 and the third receiving cavity 103. The sealing element is preferably a cured layer 153 formed by curing the filler 12. The thickness of the cured layer 153 along the first direction X is 0.5-1mm, such as 0.6mm, 0.7mm, 0.8mm, 0.9mm, etc.

[0079] Of course, in other embodiments, the sealing element can be other elements, such as a film, which can be torn off before extrusion or punctured by the extrusion force.

[0080] like Figure 1a As shown, in some specific embodiments, the support substrate 11 includes a first support layer 13, a second support layer 14, and an intermediate layer 15 located between the first support layer 13 and the second support layer 14. Wherein, combined with Figure 1b and Figure 1c , Figure 1c for Figure 1bThe diagram shows the structure of the through-hole in the intermediate layer. The intermediate layer 15 has at least one through-hole 150, which penetrates the intermediate layer 15 along the thickness direction Z. The through-hole 150 cooperates with the first support layer 13 and the second support layer 14 to form a receiving cavity 10. In this way, the intermediate layer 15 can be used to block the filler 12 from all other paths except the cavity opening direction, so as to ensure that the filler 12 flows to the outside of the support structure 1 through the cavity opening and prevent the filler 12 from overflowing to the outside from other directions.

[0081] Among them, see Figure 1b A portion of the through hole 150 extends further to one edge of the intermediate layer 15 and is connected to the outside to form an opening for accommodating the cavity 10.

[0082] The intermediate layer 15 includes an elastic layer 151. The elastic layer 151 can not only eliminate the height difference between the filling material 12 and the filling material 12 when under force, making it easier for the filling material 12 to be squeezed out of the receiving cavity 10, but also block other flow paths of the filling material 12.

[0083] In some embodiments, the inner wall of the receiving cavity 10 may be further provided with a barrier membrane layer (not shown) to prevent the filler 12 from overflowing through the intermediate layer 15. The barrier membrane layer can be any membrane layer that does not allow liquid to flow through; for example, high-temperature tape, silicone protective film, or a fully cured colloid.

[0084] Furthermore, along the first direction X, the ratio of the length of the elastic layer 151 to the length of the receiving cavity 10 is no greater than one-third. This allows the elastic layer 151 to seal the side of the receiving cavity 10 away from the opening, and also increases the length of the receiving cavity 10, enabling the support structure 1 to store more filler 12 and ensuring that sufficient filler 12 can be squeezed out when the support structure 1 is compressed. In this embodiment, the ratio of the length of the elastic layer 151 to the length of the receiving cavity 10 is preferably one-third; and the elastic layer 151 is preferably a sponge layer. Of course, the elastic layer 151 can also be other compressible material layers that can be compressed along the thickness direction Z under external force.

[0085] In the above embodiments, the support structure 1 may specifically be the shim block 4.

[0086] Of course, in some other embodiments, the support structure 1 can also be a composite tape 5, and the support substrate 11 includes a foam layer (not shown), a mesh adhesive layer (not shown), and a copper foil layer (not shown), with at least one of the foam layer and the copper foil layer having a receiving cavity 10; the filler 12 is specifically filled into the receiving cavity 10 on the foam layer and / or the copper foil layer. When the receiving cavity 10 is formed in the copper foil layer, the specific structure of the copper foil layer can be the same as described above. Figure 1aThe structure of the supporting substrate 11 shown is similar. Other specific structures of the composite tape 5 are the same as or similar to the specific structures and functions of existing composite tapes used in display modules, as detailed in the prior art.

[0087] In other embodiments, the support structure 1 is a support film 3, and the support substrate 11 includes a first support portion 31 (BPF) and a second support portion 32 (BPF). When the support structure 1 is applied to the display module 100, the first support portion 31 is located on the back side of the display portion 21 of the display module 100, that is, on the side facing the bonding portion 23 of the display module 100 after bending, and the second support portion 32 is located on the back side of the bonding portion 23, that is, on the side facing the display portion 21 after bending; the shim 4 is disposed between the first support portion 31 and the second support portion 32. In this embodiment, the first support portion 31 (BPF) and / or the second support portion 32 (BPF) have a receiving cavity 10.

[0088] Alternatively, in other embodiments, the support structure 1 may be located in any one or more of the support membrane 3, the shim block 4, and the composite tape 5. Specific solutions can be found above.

[0089] The support structure 1 described in the above embodiments can be stored in an environment of -10°C to 30°C, such as -15°C, 20°C, or 25°C. When the support structure 1 needs to be applied to the display module 100, it can be thawed in advance to ensure that the filling material 12 inside the support structure 1 has good flow properties, so that the filling material 12 can flow out from the receiving cavity 10 during use. Of course, it can also be stored at room temperature, but the effect is relatively poor.

[0090] The support structure 1 provided in this embodiment can be applied to a display module 100. The support structure 1 includes a support base 11 and a filler 12. The support base 11 has a receiving cavity 10, and the filler 12 is housed in the receiving cavity 10. When a force is applied to the support base 11, at least a portion of the filler 12 in the receiving cavity 10 can move from the receiving cavity 10 to the outside of the support structure 1.

[0091] Thus, when the support structure 1 is applied to the display module 100, and the display module 100 is subjected to external pressure during bonding bending, the filler 12 in the support structure 1 can move to the bending area of ​​the display module 100 under pressure, thereby providing support to the bending area of ​​the display module 100, reducing the risk of deformation of the bending part 22 of the display module 100 when subjected to external pressure, thereby avoiding the problem of poor display of the display panel 2 caused by deformation of the bending part 22; furthermore, it can also reduce the risk of damage caused by the bending part 22 being squeezed. Furthermore, by having the filler 12 originate from the support structure 1 applied to the display module 100, i.e. from the display module 100 itself, during the fabrication of the display module 100, external force can directly compress the support structure 1, causing the filler 12 within the support structure 1 to directly enter the bending area of ​​the display module 100 to support the bending portion 22. Compared with existing technologies, this solution reduces the need for dispensing, thickness measurement, and inspection in the bending area, resulting in simpler operation and lower costs.

[0092] See Figure 5 , Figure 5 This is a schematic diagram of the structure of a display module provided in one embodiment of this application. In this embodiment, a display module 100 is provided, which may be an OLED display module for displaying images during operation. The display module 100 includes a display panel 2 and a support structure 1, and the support structure 1 is located on the back of the display panel, that is, on the non-light-emitting side of the display panel; the support structure 1 can be any of the support structures described above. Further details are omitted here. It is worth noting that... Figure 5 The support structure 1 marked in the text is only for illustration purposes and does not necessarily have to be 3. Of course, it can be any one of them or two.

[0093] In other embodiments, the display panel 2 can be a flexible display panel for displaying images during operation. For example... Figure 5 As shown, the display panel 2 includes a display section 21, a bending section 22, and a bonding section 23. The display section 21 has a display surface and a back surface facing away from each other, and the display surface of the display section 21 is used to display an image during operation. The bonding section 23 is bent to the back surface of the display section 21 and is stacked with the display section 21 along the thickness direction Z of the display module 100. The bending section 22 connects one end of the display section 21 and one end of the bonding section 23 together; and the bending section 22 may specifically be curved.

[0094] Specifically, the display portion 21 of the display panel 2 is used for display, while the bending portion 22 and bonding portion 23 are used for wiring. The wiring on the bending portion 22 and bonding portion 23 controls the display of the display portion 21. Of course, in some other embodiments, both the display portion 21 and the bending portion 22 of the display panel 2 are used for display to improve the display effect of the display module 100; the bonding portion 23 is used for wiring, and the wiring on the bonding portion 23 controls the display of the display portion 21 and the bending portion 22. Alternatively, the bonding portion 23, the display portion 21, and the bending portion 22 of the display panel 2 can all be used for display to increase the display area of ​​the display module 100. The support structure 1 is disposed on the back of the display panel 2 and is located between the display portion 21 and the bonding portion 23. In this way, a certain distance can be maintained between the display portion 21 and the bonding portion 23 to avoid the bending angle of the bending portion 22 being too large, which would cause the wiring to break; and / or maintain the bending shape of the display module 100.

[0095] The display module 100 provided in this embodiment includes a display panel 2 and a support structure 1 as described in the above embodiment. Thus, when the display module 100 is compressed, the filler 12 in the support structure 1 can be moved to the bending area of ​​the display module 100 (i.e., the hollow cavity 40 described below) to provide support for the bending area of ​​the display module 100, thereby reducing the risk of deformation of the bending part 22 of the display module 100 when subjected to external force, and thus avoiding the problem of poor display of the display panel 2 caused by the deformation of the bending part 22; furthermore, it can also reduce the risk of damage caused by the bending part 22 being squeezed. Furthermore, by having the filler 12 originate from the support structure 1 applied to the display module 100, i.e. from the display module 100 itself, external force can directly compress the support structure 1, causing the filler 12 within the support structure 1 to directly enter the bending area of ​​the display module 100 to support the bending portion 22. Compared with the prior art, this solution reduces related processes such as dispensing, is simple to operate, and has a lower cost.

[0096] See Figure 6a and Figure 6b , Figure 6a This is a schematic diagram of the structure of a display module without a filling medium in the first cavity provided in an embodiment of this application; Figure 6b In order to be in Figure 6a The diagram shows the structure of the first cavity of the display module after it has been filled with a filling medium. In this embodiment, a display module 100 is provided, which may be an OLED display module for displaying images during operation. The display module 100 includes a display panel 2 and a support assembly. The display panel 2 has the same or similar structure and function as described above; please refer to the aforementioned display panel 2 for details, which will not be repeated here.

[0097] A support assembly is disposed between the display portion 21 and the bonding portion 23, and together with the bent portion 22, forms a first cavity 20. In some embodiments, the support assembly includes a shim structure, which is the structure formed after at least a portion of the filler of the support structure 1 described above moves to the first cavity 20, and the filler in the first cavity 20 solidifies to form a filling medium 41, that is, the filling medium 41 is obtained by solidifying the filler 12 that moves from the receiving cavity 10 of the support structure 1 to the first cavity 20. It can be understood that, for example, after the support structure 1 is compressed, the filler 12 in the receiving cavity 10 can move to the first cavity 20, and the filler solidifies to form the filling medium 41, so as to provide support for the bent portion 22 of the display panel 2, reduce the risk of deformation of the bent portion 22 when subjected to external force, thereby avoiding the problem of poor display of the display panel 2 caused by deformation of the bent portion 22; furthermore, it can also reduce the risk of damage to the bent portion 22 caused by compression.

[0098] In some embodiments, the filling medium 41 fills at least 80% of the first cavity 20 to ensure the supporting performance of the filling medium 41 on the bent portion 22 and prevent deformation of the bent portion 22. For example, the filling medium 41 fills 85%, 90%, or 95% of the first cavity 20.

[0099] like Figure 6b As shown, in this embodiment, the support assembly includes a support membrane 3, a shim block 4, and a composite tape 5. The shim structure can be any one or more of the support membrane 3, the shim block 4, and the composite tape 5. It can be understood that the support membrane 3, the shim block 4, and the composite tape 5 in this embodiment are all the structures of the support membrane 3, the shim block 4, and the composite tape 5 involved in the above-mentioned support structure after being compressed.

[0100] The support film 3 includes a first support portion 31 and a second support portion 32. The first support portion 31 is located on the side of the display portion 21 facing the bonding portion 23 and is used to support the display portion 21. The second support portion 32 is located on the side of the bonding portion 23 facing the display portion 21 and is used to support the bonding portion 23. The first support portion 31 and / or the second support portion 32 can be structures with a certain degree of support, such as steel sheets or copper sheets. When the support film 3 is used as the elevation structure, the specific structure and function of the support film 3 can be found in the description of the support structure 1 as the support film 3 in the embodiment described above.

[0101] The shim block 4 is positioned between the first support portion 31 and the second support portion 32. This ensures a certain distance between the display portion 21 and the bonding portion 23, preventing excessive bending angle of the bending portion 22 from causing wiring breakage. In some specific embodiments, since the display panel 2 itself has a certain elasticity, it may cause the folded display panel 2 to return to its unfolded state, thereby causing the second support portion 32 and the shim block 4 to separate from each other, affecting the encapsulation effect. Therefore, the shim block 4 can be bonded and fixed to the second support portion 32 with adhesive. When the shim structure is the shim block 4, the specific structure and function of the shim block 4 can be found in the relevant description of the support structure 1 in the embodiment described above.

[0102] A composite tape 5 is disposed between the raised block 4 and the first support portion 31. The composite tape 5 includes a foam layer, a mesh adhesive layer, and a copper foil layer. The raised structure is at least one of a foam layer and a copper foil layer. In a specific embodiment, the raised block 4, the composite tape 5, the first support portion 31, and the second support portion 32, together with the bent portion 22, form a first cavity 20, and the first cavity 20 is filled with a filling medium 41, which comes from the support structure 1.

[0103] It is understood that in some embodiments, the support assembly may only include the support membrane 3. In these embodiments, the elevation structure may be one of the first support portion 31 and the second support portion 32, or both may be elevation structures. Alternatively, the support assembly may only include the elevation block 4. In these embodiments, the elevation structure may be the elevation block 4. Alternatively, the support assembly may only include the composite tape 5. In these embodiments, the elevation structure may be at least one of the foam layer and the copper foil layer, or both may be elevation structures.

[0104] The following embodiments of this application are illustrated using the example of a support component including a support membrane 3, a shim block 4, and a conformal tape, with the shim block 4 as the shim structure.

[0105] See Figure 7a and Figure 7b , Figure 7a for Figure 6a The diagram shown is a structural schematic of the shim block in the display module; Figure 7b for Figure 7aThe diagram shows a structure where the second cavity of the raised block is not filled with a filling medium. The raised structure has a second cavity 30 communicating with the first cavity 20, and the second cavity 30 is a cavity for accommodating at least a portion of the filling material from the cavity 10 after it has moved to the first cavity 20, such as accommodating a cavity formed by pressure on the cavity 10; wherein both the first cavity 20 and the second cavity 30 are filled with a filling medium 41, and the filling medium 41 fills at least 80% of the first cavity 20 to provide support for the bent portion 22 of the display panel 2, reducing the risk of deformation of the bent portion 22 under external pressure. In some embodiments, combined with Figure 7a The raised structure includes a first support layer 13, a second support layer 14, and an intermediate layer located between the first support layer 13 and the second support layer 14, stacked along the thickness direction Z. The first support layer 13, the second support layer 14, and the intermediate layer cooperate to form a second cavity 30 to accommodate at least a portion of the filling medium 41. It can be understood that the first support layer 13 and the second support layer 14 have the same structure and function as those described above, and the intermediate layer is the structure of the intermediate layer 15 described above after compression.

[0106] In other embodiments, the filler 12 in the support structure 1 may also be completely extruded, that is, the raised structure does not include the filling medium 41, and the filling medium 41 is only contained in the first cavity 20. In this embodiment, the material of the first support layer 13 and the second support layer 14 is preferably polyethylene terephthalate (PET).

[0107] Furthermore, such as Figure 7a As shown, the display module may also include an adhesive layer 16 for fixing the relative positions of the shim block 4, composite tape 5, support film 3 and display panel 2. The material of the adhesive layer is preferably acrylic adhesive.

[0108] Combination Figure 6b and Figure 7a In this embodiment, the filling medium 41 fills the first cavity 20 and the second cavity 30. The filling medium 41 in the first cavity 20 supports the bent portion 22 of the display panel 2, reducing the risk of deformation of the bent portion 22 under external pressure, which could cause display defects in the display panel 2. The filling medium 41 in the second cavity 30 fills the gap between the intermediate layer 15 and the receiving cavity 10.

[0109] See Figure 8 , Figure 8 Provided for an embodiment of this application Figure 6bA schematic diagram of the structure of the second cavity on the raised block. In this embodiment, the second cavity 30 may include a first sub-cavity 301, a second sub-cavity 302, and a third sub-cavity 303; wherein, along the second direction Y, the second sub-cavity 302 is located on one side of the first sub-cavity 301, the third sub-cavity 303 is located between the first sub-cavity 301 and the second sub-cavity 302, and a sponge layer separates the first sub-cavity 301 from the second sub-cavity 302 and the third sub-cavity 303. Figure 9 , Figure 9 Provided for an embodiment of this application Figure 6b The diagram shows a cross-sectional view of the module along the plane of the intermediate layer; the filling medium 41 may also include a first medium section 411, a second medium section 412 and a third medium section 413.

[0110] Combination Figure 6b and Figure 9 A portion of the third medium portion 413 fills the first cavity 20 to support the bent portion 22 and reduce the risk of deformation when the bent portion 22 is subjected to external pressure; another portion fills the third sub-cavity 303 to support the first support layer 13 and the second support layer 14, thereby filling the gap between the intermediate layer 15 and the third sub-cavity 303. In this embodiment, the third medium portion 413 is preferably a high-modulus cured adhesive with a modulus of 400MPa-2000 MPa to improve the compression resistance of the bent portion 22 and the shim block 4.

[0111] A portion of the first medium portion 411 fills the first cavity 20, and another portion fills the first sub-cavity 301. Along the second direction Y, the first medium portion 411 is located on the first side of the third medium portion 413, serving to isolate the first side of the third medium portion 413 from the external environment, thereby protecting the first side of the third medium portion 413 and preventing external moisture or grease from entering it; thus avoiding any impact on the compressive strength of the bent portion 22 and the raised block 4. Preferably, the first medium portion 411 can be a grease-curing adhesive.

[0112] The second medium portion 412 is partially filled within the first cavity 20 and partially within the second sub-cavity 302. It isolates the second side of the third medium portion 413, opposite to the first side, from the external environment, protecting the second side of the third medium portion 413 and preventing external moisture or grease from entering it. This avoids affecting the compression resistance of the bent portion 22 and the raised block 4. In this embodiment, the second medium portion 412 is preferably a grease-cured adhesive.

[0113] Of course, in some other embodiments, the second cavity 30 includes only the third sub-cavity 303, and the filling medium 41 includes only the third medium portion 413; or the second cavity 30 includes the first sub-cavity 301 and the third sub-cavity 303, and the filling medium 41 includes the first medium portion 411 and the third medium portion 413; or the second cavity 30 includes the second sub-cavity 302 and the third sub-cavity 303, and the filling medium 41 includes the second medium portion 412 and the third medium portion 413.

[0114] like Figure 6b As shown, the display module 100 also includes a circuit board 7 and a chip 8 (IC). The circuit board 7 and the chip 8 are electrically connected to the bonding portion 23 and are located on the side of the bonding portion 23 opposite to the second support portion 32. The circuit board 7 is used to control the display panel 2. The circuit board 7 can be a flexible circuit board. Specifically, the circuit board 7 and the chip 8 are located on the side of the bonding portion 23 opposite to the display portion 21.

[0115] Of course, in specific embodiments, such as Figure 6b As shown, the display module 100 also includes structural components such as a polarizer 6, an OCA adhesive layer, a cover plate, and a protective layer 9. The specific structure and function of these structural components can be found in the specific structure and function of related structural components in existing display modules 100, and they can achieve the same or similar technical effects, so they will not be described in detail here.

[0116] The display module 100 provided in this embodiment includes a display panel 2 and a support assembly. The display panel 2 includes a display portion 21, a bending portion 22, and a bonding portion 23 connected in sequence. The bonding portion 23 is bent to the back of the display portion 21 and is stacked with the display portion 21 along the thickness direction Z of the display module 100. The support assembly is disposed between the display portion 21 and the bonding portion 23, and together with the bending portion 22, forms a first cavity 20. The support assembly includes a shim structure, which is the structure of the support structure 1 mentioned above after being pressed and solidified. The first cavity 20 is filled with a filling medium 41, which is obtained by solidifying the filler 12 that moves from the receiving cavity 10 of the support structure 1 to the first cavity 20. By supporting the bending portion 22 of the display module 100, damage to the display module caused by deformation is effectively reduced, thereby ensuring good display performance of the display module 100.

[0117] Please see Figure 10 , Figure 10This is a simplified structural diagram of a display device provided in one embodiment of this application. In this embodiment, a display device is provided that can realize 3D display, i.e., curved surface display; specifically, it can be a watch, smartphone, tablet computer, etc. The display device specifically includes the display module 100 involved in any of the above embodiments. The specific structure and function of the display module 100 can be found in the specific structure and function of the display module 100 provided in the above embodiments, and can achieve the same or similar technical effects, which will not be repeated here.

[0118] Please see Figures 11 to 13 , Figure 11 A flowchart illustrating a method for fabricating a display module according to an embodiment of this application; Figure 12 This is a schematic diagram of the structure of a display module before bending, provided in one embodiment of this application; Figure 13 This is a schematic diagram of the structure of a display module after bending, according to an embodiment of this application. In this embodiment, a method for manufacturing a display module is provided, which can be used to manufacture the display module 100 provided in any of the above embodiments. The method for manufacturing the display module 100 includes:

[0119] S1: Provide a display body; the display body includes a display panel and a support assembly; the display panel includes a display part, a bending part and a bonding part connected in sequence, the bonding part is bent to the back of the display part and is stacked with the display part in the thickness direction of the display module; the support assembly is disposed between the display part and the bonding part, and forms a hollow cavity with the bending part; and the support assembly includes a support structure as described in any of the above embodiments; the cavity opening of the receiving cavity of the support structure faces the hollow cavity.

[0120] In the specific implementation process, combined with Figure 12 and Figure 13 Step S1 specifically includes:

[0121] S11: A support component is provided on the back of the display panel.

[0122] The display panel 2 includes a display portion 21, a bending portion 22, and a bonding portion 23 connected sequentially along a first direction X; the support assembly includes a support film 3, a composite tape 5, and a shim block 4; the support film 3 includes a first support portion 31 and a second support portion 32, the first support portion 31 being disposed on the back side of the display portion 21, and the second support portion 32 being disposed on the back side of the bonding portion 23; the composite tape 5 being disposed on the side surface of the first support portion 31 facing away from the display portion 21; and the shim block 4 being fixed to the side surface of the second support portion 32 facing away from the bonding portion 23.

[0123] For details, please refer to Figure 12The display panel 2 has a display surface m and a back surface n. The circuit board 7 and the chip 8 are electrically connected to the display surface m of the bonding portion 23 of the display panel 2; and a portion of the circuit board 7 is exposed through the display panel 2. The shim structure can be any one or more of the following: a support film 3, a composite tape 5, and a shim block 4.

[0124] S12: Bend the bent portion and make the side surface of the pad block away from the bonding portion fit against the side surface of the first support portion away from the display portion.

[0125] like Figure 13 As shown, the shim block 4 is located between the first support portion 31 and the second support portion 32; and the first support portion 31, the second support portion 32, the shim block 4, the composite tape 5, and the bending portion 22 form a hollow cavity 40, which is the state of the first cavity 20 in the above specific structure before it is compressed. In one embodiment, the shim block 4 has a receiving cavity 10, which is filled with filler 12; it can be understood that... Figure 7b The second cavity 30 shown is a cavity structure formed after part of the filler 12 in the receiving cavity 10 is squeezed out. The volume of the second cavity 30 is smaller than the volume of the receiving cavity 10. Specifically, the length of the second cavity 30 is the same as the length of the receiving cavity 10, and the height of the second cavity 30 along the thickness direction Z is smaller than the height of the receiving cavity 10 along the thickness direction Z.

[0126] Specifically, the bonding portion 23 is bent to the back surface n of the display portion 21 and stacked with the display portion 21 along the thickness direction Z of the display module 100. The first support portion 31 is located on the surface of the display portion 21 facing the bonding portion 23, and the second support portion 32 is located on the surface of the bonding portion 23 facing the display portion 21.

[0127] In this embodiment, the support structure 1 is a raised block 4. The specific structure and function of the raised block 4 can be found in any of the above embodiments, and the same or similar technical effects can be achieved. It will not be repeated here. It should be noted that the raised block 4 provided in this embodiment can be stored at a temperature of -30℃ to -10℃ to ensure that the filling material 12 in its cavity 10 maintains a certain degree of fluidity. The raised block 4 can be thawed in advance when needed.

[0128] It can be understood that the display body prepared in the above embodiments is... Figure 5 The display module shown.

[0129] S2: Apply a force to the display body so that at least a portion of the filler in the receiving cavity is filled into the hollow cavity through the cavity opening.

[0130] Specifically, a pressure-applying element applies a force along the thickness direction Z to the display body, thereby ensuring stable adhesion between the display panel 2, the support film 3, and the shim 4, and extruding at least a portion of the filler 12 within the receiving cavity 10. In practice, the pressure-applying element can employ methods such as uniform pressure, rolling, or movement; for example, along... Figure 13 As shown, pressure is gradually applied to the display body from left to right in the direction towards the cavity opening. Pressure can be applied from the bonding part side to enhance the squeezing effect on the filler 12, so that the filler 12 fills the hollow cavity 40 as much as possible. During the application of force, the display part 21 and the bonding part 23, which are close to each other, squeeze the padding structure, such as the padding block 4. The sponge layer contracts along the thickness direction Z under the compression of the first support layer 13 and the second support layer 14, so that at least a portion of the first filler 121, at least a portion of the second filler 122 and at least a portion of the third filler 123 overflow into the hollow cavity 40 along the first direction X, until the filler 12 fills the hollow cavity 40, forming the first cavity 20.

[0131] Combination Figure 3a and Figure 8 After a force is applied to the display body, the receiving cavity 10 is compressed along the thickness direction Z to form the second cavity 30, and the hollow cavity 40 is compressed along the thickness direction Z to form the first cavity 20. Specifically, the first receiving cavity 101 is compressed to form the first sub-cavity 301, and the portion of the first filler 121 remaining in the first sub-cavity 301 is cured to form the first medium portion 411. The second receiving cavity 102 is compressed to form the second sub-cavity 302, and the portion of the second filler 122 remaining in the second sub-cavity 302 is cured to form the second medium portion 412. The third receiving cavity 103 is compressed to form the third sub-cavity 303, and the portion of the third filler 123 remaining in the third sub-cavity 303 is cured to form the third medium portion 413.

[0132] Those skilled in the art will understand that the volume of the first sub-cavity 301 is smaller than the volume of the first receiving cavity 101; specifically, the length of the first sub-cavity 301 is the same as the length of the first receiving cavity 101, and the height of the first sub-cavity 301 along the thickness direction Z is smaller than the height of the first receiving cavity 101 along the thickness direction Z. The volume of the second sub-cavity 302 is smaller than the volume of the second receiving cavity 102; specifically, the length of the second sub-cavity 302 is the same as the length of the second receiving cavity 102, and the height of the second sub-cavity 302 along the thickness direction Z is smaller than the height of the second receiving cavity 102 along the thickness direction Z. The volume of the third sub-cavity 303 is smaller than the volume of the third receiving cavity 103; specifically, the length of the third sub-cavity 303 is the same as the length of the third receiving cavity 103, and the height of the third sub-cavity 303 along the thickness direction Z is smaller than the height of the third receiving cavity 103 along the thickness direction Z.

[0133] It should be noted that in some embodiments, the intermediate layer 15 may only include an elastic layer 151, with the edge of the elastic layer 151 flush with the edges of the first support layer 13 and the second support layer 14, and the filler 12 stored within the elastic layer 151. After a force is applied to the display body, the filler 12 overflows from the elastic layer 151 and moves into the first cavity 20. Of course, the filler 12 may also partially remain within the elastic layer 151. In this case, the intermediate layer 15 includes the elastic layer 151 and the filler 12 filled within the elastic layer 151. In other embodiments, the intermediate layer 15 may only include a filler layer 152. After a force is applied to the display body, the filler 12 of the filler layer 152 overflows from the padding block 4, and the first support layer 13 and the second support layer 14 can be directly attached, with the filler 12 only contained within the first cavity 20.

[0134] After step S2, the method further includes: curing all the fillers within the display body to form a filling medium.

[0135] Specifically, in combination Figure 3b and Figure 9 In this embodiment, the filler 12 can be cured by light curing, heat curing, or room temperature curing to form the filling medium 41; the specific curing method can be selected according to the different materials of the filler 12. Specifically, after the third filler 123 is cured, it forms the third medium part 413 to improve the compression resistance of the bent part 22 and the raised block 4. After the second filler 122 is cured, it forms the second medium part 412, and after the first filler 121 is cured, it forms the first medium part 411; this prevents external moisture or grease from entering the third medium part 413, thereby avoiding any impact on the compression resistance of the bent part 22 and the raised block 4.

[0136] See Figure 4a and Figure 4b Before step S2, the process further includes: curing the portion of the filler exposed through the cavity opening to form a cured layer. This step can be performed before step S11, for example, during the preparation of support structure 1; or after step S11 and before step S12; or after step S12.

[0137] In this embodiment, ultraviolet light can be used to irradiate the portion of the filler 12 exposed through the cavity opening to cure the exposed filler 12 and form a cured layer 153. The filler 12 within the receiving cavity 10 remains in a liquid state. Specifically, the thickness of the cured layer 153 along the first direction X is 0.5-1 mm. When a force is applied to the display body, the uncured filler 12 breaks through the cured layer 153 under the pressure of the first support layer 13 and the second support layer 14, and moves into the hollow cavity 40. In other embodiments, the cured layer 153 can also be formed by thermosetting or room temperature curing, depending on the type of adhesive.

[0138] The method for manufacturing a display module 100 provided in this application embodiment involves providing a display body; the display body includes a display panel 2 and a support assembly; the display panel 2 includes a display portion 21, a bending portion 22 and a bonding portion 23 connected in sequence, the bonding portion 23 is bent to the back of the display portion 21 and is stacked with the display portion 21 in the thickness direction of the display module 100; the support assembly is disposed between the display portion 21 and the bonding portion 23, and surrounds the bending portion 22 to form a hollow cavity 40; and the support assembly includes a support structure 1 as described in any of the above embodiments; the cavity opening of the receiving cavity 10 of the support structure 1 faces the hollow cavity 40; then a force is applied to the display body so that at least a portion of the filler 12 in the receiving cavity 10 is filled into the hollow cavity 40 through the cavity opening. This method involves using a filler 12 that originates from the support structure 1 applied to the display module 100, i.e., from the display module 100 itself. Thus, during the fabrication of the display module 100, external force can directly compress the support structure 1, causing the filler 12 within the support structure 1 to directly enter the bending area of ​​the display module 100 to support the bending portion 22. Compared with existing technologies, this solution reduces related processes such as dispensing, is simple to operate, and has a lower cost.

[0139] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A support structure applied to a display module, characterized by, The support structure comprises a support base body and a filler, the support base body has a receiving cavity, the filler is accommodated in the receiving cavity, and the filler can move from the receiving cavity to the outside of the support structure; The number of the receiving cavities is at least one, the receiving cavities comprise cavity openings, and the receiving cavities are connected with the outside through the cavity openings; The receiving cavities comprise a first receiving cavity and a second receiving cavity; the filler comprises a first filler and a second filler; the first filler is filled in the first receiving cavity; the second filler is filled in the second receiving cavity; the receiving cavities further comprise a third receiving cavity, the third receiving cavity is located between the first receiving cavity and the second receiving cavity along a second direction perpendicular to the first direction and the thickness direction; the filler further comprises a third filler; the third filler is filled in the third receiving cavity; and the viscosity of the first filler and the second filler is greater than the viscosity of the third filler.

2. The support structure of claim 1, wherein, The filler comprises a glue material.

3. The support structure of claim 1, wherein, The width of the receiving cavity gradually decreases or gradually increases in the direction towards the cavity opening.

4. The support structure of claim 1, wherein, The material of the first filler and the second filler is the same, and the material of the third filler is different from that of the first filler.

5. The support structure of claim 1, wherein, The first filler and the second filler are grease glue materials.

6. The support structure of claim 1, wherein, The third filler is a glue material, and the viscosity of the glue material is 100 cP-1000 cP.

7. The support structure of claim 1, wherein, Further comprising a sealing element, the sealing element is arranged at the cavity opening of the receiving cavity.

8. The support structure of claim 7, wherein, The sealing element is a solidified layer after the filler is solidified.

9. The support structure of claim 8, wherein, The thickness of the solidified layer is 0.5-1 mm.

10. Support structure according to any of claims 1-9, characterized in that The support base body comprises a first support layer, a second support layer, and an intermediate layer located between the first support layer and the second support layer; The intermediate layer has at least one through hole, the through hole penetrates the intermediate layer along the thickness direction of the intermediate layer, and the through hole cooperates with the first support layer and the second support layer to form the receiving cavity.

11. The support structure of claim 10, wherein, The intermediate layer comprises an elastic layer.

12. The support structure of claim 11, wherein, The elastic layer is a sponge layer.

13. The support structure of claim 1, wherein, The inner wall of the receiving cavity is provided with a barrier film layer.

14. A display module, characterized by Comprise: A display panel and a support structure, the support structure is the support structure in any one of claims 1-13, and the support structure is arranged at the back of the display panel.

15. A display module, characterized by Comprise: A display panel and a support assembly; the display panel comprises a display part, a bending part and a bonding part connected in sequence; the bonding part is located at the back of the display part and is arranged in a stacked manner with the display part along the thickness direction of the display module; the support assembly is arranged between the display part and the bonding part and surrounds the bending part to form a first cavity; the support assembly comprises a height-raising structure, the height-raising structure is a structure after at least part of the filler of the support structure in any one of claims 1-13 moves to the first cavity, and the filler in the first cavity is solidified to form a filling medium.

16. The display module of claim 15, wherein, Further comprise: The support assembly comprises a support film, the support film comprises a first support part and a second support part; the first support part is located on the side of the display part facing the bonding part, and the second support part is located on the side of the bonding part facing the display part; the cushioning structure is at least one of the first support part and the second support part; Alternatively, the support assembly comprises a cushioning block, and the cushioning structure is a cushioning block. Alternatively, the support assembly comprises a composite tape, the composite tape comprises a foam layer, a grid adhesive layer, and a copper foil layer, and the cushioning structure is at least one of the foam layer and the copper foil layer. Alternatively, the support assembly comprises a support film, a cushioning block, and a composite tape, and the cushioning structure is any one or more of the support film, the cushioning block, and the composite tape.

17. The display module of claim 15, wherein, The filling medium fills at least 80% of the first cavity.

18. The display module of claim 15, wherein, The cushioning structure has a second cavity; the second cavity is a cavity after at least part of the filling of the containing cavity moves to the first cavity, and the second cavity is filled with the filling medium.

19. A method for manufacturing a display module, characterized by, Comprising: A display body is provided; the display body comprises a display panel and a support assembly; the display panel comprises a display part, a bending part, and a bonding part connected in sequence, the bonding part is bent to the back of the display part and is stacked with the display part in the thickness direction of the display module; the support assembly is arranged between the display part and the bonding part and surrounds the bending part to form a hollow cavity; and the support assembly comprises the support structure according to any one of claims 1-13; the cavity opening of the containing cavity of the support structure faces the hollow cavity; An acting force is applied to the display body, so that at least part of the filling in the containing cavity fills into the hollow cavity through the cavity opening.

20. The method of claim 19, wherein, After the step of applying the acting force to the display body so that at least part of the filling in the containing cavity fills into the hollow cavity through the cavity opening, the method further comprises: curing all the fillings in the display body to form a filling medium, so that the hollow cavity becomes a first cavity.

21. The method of claim 20, wherein, The fillings are cured by light curing or heat curing.

22. The method of claim 20, wherein, The filling medium fills at least 80% of the first cavity.

23. A display device comprising: The display module comprises the display module according to any one of claims 14-18 or the display module prepared by the preparation method of the display module according to claims 19-22.

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