Support structure, display module and preparation method therefor, and display apparatus

Abstract

A support structure (1), a display module (100) and a preparation method therefor, and a display apparatus. The support structure (1) is applied to the display module (100), and comprises a support substrate (11) and a filler (12); the support substrate (11) is provided with an accommodating cavity (10), the filler (12) is accommodated in the accommodating cavity (10), and the filler (12) can move from the accommodating cavity (10) to the outside of the support structure (1). The support structure (1) can reduce the risk of deformation or even damage of a bent portion (22) of the display module (100) when being pressed by an external force, thereby reducing the probability of poor display of a display panel (2) caused by the deformation or damage of the bending portion (22).

Description

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

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority based on Chinese patent application 2023107211996, filed on June 16, 2023, entitled “Support structure, display module, preparation method thereof, and display device,” and all of its contents are incorporated herein by reference.

Technical field

[0003] The present application relates to the field of display technology, and in particular to a support structure, a display module and a preparation method thereof, and a display device. [Background Technology]

[0004] Organic Light Emitting Diode (OLED) display modules offer advantages such as high color gamut, flexibility, and fast response speed, and their market share is increasing year by year. Flexible displays are currently a mainstream trend in the display industry. Advances in curved surface lamination technology have further reduced the bezels of displays on mobile devices such as mobile phones and smartwatches, significantly increasing the screen-to-body ratio and, in turn, enhancing the visual experience.

[0005] Currently, the screen structure of a display module generally includes a display portion, a bent portion, and a bonding portion. The bonding portion is stacked with the display portion along the thickness of the display module and connected to the display portion via the bent portion. However, in existing display modules, the bent portion can deform or even damage, resulting in poor display quality.

[0006] Application Contents

[0007] The support structure, display module, preparation method thereof, and display device provided in this application are intended to solve the problem that when the existing display module is squeezed by external force, the bending portion may be deformed or even damaged, thereby causing poor display of the display module.

[0008] In order to solve the above technical problems, a technical solution adopted in this application is: to provide a support structure, applied to the display module, the support structure includes a support base and a filler, the support base has a accommodating cavity, the filler is accommodated in the accommodating cavity, and the filler can move from the accommodating cavity to the outside of the support structure.

[0009] To solve the above technical problems, another technical solution adopted in this application is: providing a display module, including: a display panel and a supporting structure, the supporting structure is the supporting structure involved above, and the supporting structure is arranged on the back of the display panel.

[0010] In order to solve the above technical problems, another technical solution adopted in the present 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 arranged between the display part and the bonding part, and is surrounded by the bending part to form a first accommodating cavity; the support assembly includes a cushioning structure, and the cushioning structure is a structure after at least part of the filler of the support structure involved above is moved to the first cavity, and the filler located in the first cavity is solidified to form a filling medium.

[0011] To solve the above technical problems, another technical solution adopted in this application is to provide a method for preparing a display module, comprising:

[0012] 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 provided between the display portion and the bonding portion and is formed with the bending portion to form a hollow cavity; the support assembly includes the support structure mentioned above; the cavity of the accommodating cavity of the support structure faces the hollow cavity;

[0013] Applying force to the display body to enable at least a portion of the filler in the accommodating cavity to be filled into the hollow cavity through the cavity opening.

[0014] In order to solve the above technical problems, another technical solution adopted in the present application is: providing a display device, including the display module as mentioned above, or a display module manufactured by the method for manufacturing the display module as mentioned above.

[0015] Beneficial effects of the present application: Different from the prior art, the present application provides a support structure, a display module, a preparation method thereof, and a display device; the support structure is applied to the display module, and includes a support base and a filler; wherein the support base has a receiving cavity, the filler is received in the receiving cavity, and the filler can move from the receiving cavity to the outside of the support structure. In this way, when the support structure is applied to the display module, the display module can be affected by the outside world, and the filler in the support structure can be moved to the bending area of ​​the display module, thereby providing support for the bending area of ​​the display module, reducing the risk of deformation of the bending portion of the display module when squeezed by external force, thereby effectively avoiding the problem of poor display of the display panel due to deformation of the bending portion; further, the risk of damage caused by squeezing of the bending portion can also be reduced. In addition, by making the filler come from the support structure applied to the display module, that is, from the display module itself; in this way, during the preparation of the display module, the support structure can be directly extruded so that the filler in the support structure enters the bending area of ​​the display module to support the bending portion; compared with the existing technology, this solution reduces related processes such as dispensing, is simple to operate, and has low cost.

Brief Description of the Drawings

[0016] FIG1a is a schematic structural diagram of a support structure provided in one embodiment of the present application;

[0017] FIG1b is a schematic structural diagram of the support structure shown in FIG1a without fillers in the accommodating cavity;

[0018] FIG1c is a schematic structural diagram of the through hole in the middle layer shown in FIG1b;

[0019] FIG2a is a schematic structural diagram of a support structure provided in one embodiment of the present application;

[0020] FIG2b is a schematic structural diagram of the support structure shown in FIG2a without fillers in the accommodating cavity;

[0021] FIG3a is a schematic structural diagram of a receiving cavity on a support structure provided in one embodiment of the present application;

[0022] FIG3 b is a schematic structural diagram of the support structure shown in FIG3 a after the receiving cavity is filled with a filler;

[0023] FIG4a is a schematic structural diagram of a support structure provided in an embodiment of the present application;

[0024] FIG4b is a top view of the middle layer of the support structure shown in FIG4a;

[0025] FIG4c is a schematic diagram of the stacked structure of a composite tape provided in one embodiment of the present application;

[0026] FIG5 is a schematic structural diagram of a display module provided in one embodiment of the present application;

[0027] FIG6 a is a schematic structural diagram of a display module according to an embodiment of the present application, wherein the first cavity is not filled with a filling medium;

[0028] FIG6 b is a schematic structural diagram of the display module shown in FIG6 a after the first cavity is filled with a filling medium;

[0029] FIG7a is a schematic structural diagram of a spacer block in the display module shown in FIG6a;

[0030] FIG7 b is a schematic structural diagram of the second cavity of the spacer block shown in FIG7 a without a filling medium;

[0031] FIG8 is a schematic structural diagram of the second cavity on the raising block in FIG6b according to an embodiment of the present application;

[0032] FIG9 is a cross-sectional view of the display module shown in FIG6b along the plane where the middle layer is located, provided by an embodiment of the present application;

[0033] FIG10 is a simplified structural diagram of a display device provided in one embodiment of the present application;

[0034] FIG11 is a flow chart of a method for preparing a display module according to an embodiment of the present application;

[0035] FIG12 is a schematic structural diagram of a display module before bending according to an embodiment of the present application;

[0036] FIG13 is a schematic diagram of the structure of a display module after being bent according to an embodiment of the present application;

[0037] Explanation of the accompanying figures: 100-display module; 1-support structure; 2-display panel; 3-support film; 4-pad; 5-composite tape; 51-grid adhesive layer; 52-foam layer; 53-copper foil layer; 6-polarizer; 7-circuit board; 8-chip; 9-protective layer; 11-support base; 12-filler; 13-first support layer; 14-second support layer; 15-middle layer; 16-adhesive layer; 21-display part; 22-bending part; 23-bonding part; 31-first support part; 32-second support part; 10-accommodating cavity; 20-first cavity; 30-second cavity; 40-hollow cavity; 41- Filling medium; 101-first accommodating cavity; 102-second accommodating cavity; 103-third accommodating 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 part; 412-second medium part; 413-third medium part. [Specific implementation method]

[0038] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0039] The terms "first," "second," and "third" in this application are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of such features. In the description of this application, "multiple" means at least two, for example, two, three, etc., unless otherwise specifically defined. All directional indications in the embodiments of this application (such as up, down, left, right, front, back...) are only used to explain the relative positional relationship, movement, etc. between the components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications also change accordingly. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. 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 that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products, or devices.

[0040] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0041] In related art, the display panel in a flexible display module includes a display portion, a bending portion, and a bonding portion, which are connected in sequence. After the display panel is bent, the membrane structure between the display portion and the bonding portion, along with the bending portion, forms a hollow structure. Because the inner side of the bending portion is hollow, if the display module is subjected to external forces, such as vertical pressure on the bonding portion, the suspended bending portion can easily deform under the external force, resulting in poor display quality on the display panel. Even when the external force exceeds 3 kgf, the bending portion can be damaged, affecting the normal function of the display module.

[0042] Based on this, the embodiments of the present application provide a support structure, a display module, a preparation method thereof, and a display device. The support structure can reduce the risk of deformation or even damage of the bent portion when subjected to external force, thereby reducing the probability of poor display problems of the display panel caused by deformation or damage of the bent portion.

[0043] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0044] Please refer to Figures 1a and 1b. Figure 1a is a schematic diagram of a support structure provided in one embodiment of the present application; Figure 1b is a schematic diagram of the support structure shown in Figure 1a without a filler within a receiving cavity. In this embodiment, a support structure 1 is provided, which can be used in 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 accommodated within the receiving cavity 10. When a force is applied to the support base 11, at least a portion of the filler 12 within the receiving cavity 10 can move from the receiving cavity 10 to the exterior of the support structure 1. Specifically, when the support structure 1 is subjected to an external force, such as a force, the filler 12 within the receiving cavity 10 is squeezed and moved to the exterior of the support structure 1. Of course, other methods can also be used to cause the filler 12 to move to the exterior, such as gravity or temperature.

[0045] In this way, when the support structure 1 is applied to the display module 100, since the display module 100 needs to be squeezed when it is bonded and bent, the filler 12 in the support structure 1 can be moved to the bending area of ​​the display module 100 under the force, thereby providing support for the bending area of ​​the display module 100, reducing the risk of deformation of the bending portion 22 (see Figure 5) of the display module 100 when squeezed by external force, thereby avoiding the problem of poor display of the display panel 2 due to deformation of the bending portion 22; further, the risk of damage caused by squeezing the bending portion 22 can also be reduced. In addition, by making the filler 12 come from the support structure 1 applied to the display module 100, that is, from the display module 100 itself; in this way, during the preparation of the display module 100, external force can directly squeeze the support structure 1, so that the filler 12 in the support structure 1 directly enters the bending area of ​​the display module 100 to support the bending portion 22; compared with the existing technology, this solution reduces related processes such as dispensing in the bending area, is simple to operate, and has low cost.

[0046] As shown in Figure 1b, in some embodiments, the number of accommodating cavities 10 is at least one, and each accommodating cavity 10 also includes a cavity opening. The accommodating cavity 10 is specifically connected to the outside through the cavity opening. When the number of accommodating cavities 10 is multiple, that is, the number is at least two, the cavity openings of all accommodating cavities 10 on the supporting structure 1 are located on the same side of the supporting base 11; in this way, the filler 12 in the supporting structure 1 can move toward the same side to the outside of the supporting structure 1, so that when the supporting structure 1 is applied to the display module 100, the area position on a specific side of the display module 100 can be filled, thereby avoiding contamination of other areas of the display module 100.

[0047] The filler 12 is preferably a liquid filler to ensure that the filler 12 has a certain degree of fluidity, so that it can more easily flow out of the receiving cavity 10 when squeezed by an external force. Specifically, the liquid filler 12 is preferably a glue material. Of course, the filler 12 can also be a paste, semi-solid, fluid, or semi-fluid material with certain flow properties.

[0048] Referring to Figures 2a and 2b, Figure 2a is a structural schematic diagram of the support structure provided by an embodiment of the present application; Figure 2b is a structural schematic diagram of the support structure shown in 2a without filler in the accommodating cavity. In some embodiments, the thickness d of the accommodating cavity 10 gradually increases in the direction toward the cavity opening, so as to better drive the filler 12 in the accommodating cavity 10 to move toward the cavity opening when the support structure 1 is squeezed, 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 thickness d of the accommodating cavity 10 can also gradually decrease in the direction toward the cavity opening, so as to improve the squeezing effect of the support structure 1 on the filler 12 when the external force is squeezed. Among them, the thickness d of the accommodating cavity 10 refers to the size of the accommodating cavity along the thickness direction Z. Specifically, the cross-section of the accommodating cavity 10 along the thickness direction Z may be trapezoidal.

[0049] In other embodiments, the width of the accommodating cavity 10 gradually decreases toward the cavity opening to better drive the filler 12 in the accommodating cavity 10 toward the cavity opening when the support structure 1 is squeezed, thereby improving the filling effect of the filler 12 on the bending area of ​​the display module 100. Of course, in other embodiments, the width of the accommodating cavity 10 may also gradually increase toward the cavity opening to improve the squeezing effect on the filler 12 when the support structure 1 is squeezed by an external force. The width of the accommodating cavity 10 refers to the dimension of the accommodating cavity 10 along the second direction Y. Specifically, the cross-section of the accommodating cavity 10 perpendicular to its thickness direction Z may be trapezoidal.

[0050] In some embodiments, referring to Figures 3a and 3b, Figure 3a is a schematic diagram of the structure of a accommodating cavity on a support structure provided in one embodiment of the present application; Figure 3b is a schematic diagram of the structure of the support structure shown in Figure 3a after the accommodating cavity is filled with a filler. The accommodating cavity 10 may include a first accommodating cavity 101, a second accommodating cavity 102, and a third accommodating cavity 103, which are spaced apart. The first accommodating cavity 101, the second accommodating cavity 102, and the third accommodating cavity 103 all have openings, and the openings of the first accommodating cavity 101, the second accommodating cavity 102, and the third accommodating cavity 103 are located on the same side of the support base 11. In a second direction Y perpendicular to the first direction X and the thickness direction Z, the second accommodating cavity 102 is located on one side of the first accommodating cavity 101, and the third accommodating cavity 103 is located between the first accommodating cavity 101 and the second accommodating cavity 102.

[0051] As shown in Figures 3a and 3b, in this embodiment, the filler 12 includes a first filler 121, a second filler 122, and a third filler 123. The first filler 121 is filled in the first accommodating cavity 101, the second filler 122 is filled in the second accommodating cavity 102, and the third filler 123 is filled in the third accommodating cavity 103. It can be understood that because the first accommodating cavity 101, the second accommodating cavity 102, and the third accommodating cavity 103 all have cavities, 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 be moved from the cavities to the outside of the support structure 1 under the pressure of the external force.

[0052] 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 with a viscosity of 100 cP-1000 cP to ensure good flowability and facilitate subsequent filling of the bend area. 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, and so on. The viscosity of the first filler 121 and the second filler 122 can be greater than the viscosity of the third filler 123, so as to reduce as much as possible the probability of the first filler 121 and the second filler 122 overflowing from the two 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.

[0053] Specifically, the first filler 121 and the second filler 122 are grease adhesives. Thus, the filling medium formed by curing the first filler 121 and the second filler 122 can prevent external moisture or grease from entering the interior of the display module 100 .

[0054] Of course, in some other embodiments, the accommodating cavity 10 may also include only the third accommodating cavity 103, and the filler 12 may include only the third filler 123; or the accommodating cavity 10 may include the third accommodating cavity 103 and the first accommodating cavity 101, and the filler 12 may include the third filler 123 and the first filler 121; or the accommodating cavity 10 may include the third accommodating cavity 103 and the second accommodating cavity 102, and the filler 12 may include the third filler 123 and the second filler 122; or the accommodating cavity 10 may include the first accommodating cavity 101 and the second accommodating cavity 102, and both the first accommodating cavity 101 and the second accommodating 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 adhesives. In addition, the first accommodating cavity 101, the second accommodating cavity 102, and the third accommodating cavity 103 may all be filled with the same adhesive, for example, the third filler 123 described above.

[0055] Referring to Figures 4a and 4b, Figure 4a is a schematic structural diagram of a support structure provided in one embodiment of the present application; Figure 4b is a top view of the intermediate layer of the support structure shown in Figure 4a. The support structure 1 may also include a blocking element provided at the cavity opening of the accommodating cavity 10 to block the cavity opening of the accommodating cavity 10 and prevent the uncured filler 12 in the accommodating cavity 10 from flowing out of the cavity opening. As shown in Figure 4b, in this embodiment, blocking elements are provided at the cavity openings of the first accommodating cavity 101, the second accommodating cavity 102, and the third accommodating cavity 103. The blocking element is preferably a solidified layer 153 formed by the solidification of the filler 12; and along the first direction X, the thickness of the solidified layer 153 is 0.5-1 mm; for example, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, etc.

[0056] Of course, in other embodiments, the blocking element may be other elements, such as a film, which may be torn off before squeezing, or may be broken through by the force of squeezing.

[0057] As shown in Figure 1a, in some specific embodiments, the support substrate 11 includes a stacked 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. In conjunction with Figures 1b and 1c, Figure 1c is a schematic structural diagram of the through-holes in the intermediate layer shown in Figure 1b; the intermediate layer 15 has at least one through-hole 150, and the through-hole 150 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 the accommodating cavity 10. In this way, the intermediate layer 15 can be used to block other paths of the filler 12 except the cavity opening, thereby ensuring that the filler 12 flows through the cavity opening to the outside of the support structure 1 and preventing the filler 12 from overflowing to the outside from other directions.

[0058] 1 b , a portion of the through hole 150 further extends to an edge of the middle layer 15 and communicates with the outside to form a cavity opening of the accommodating cavity 10 .

[0059] The middle layer 15 includes an elastic layer 151 . The elastic layer 151 can not only eliminate the height difference with the filler 12 when subjected to force, thereby facilitating the filler 12 to extrude out of the accommodating cavity 10 , but also block other flow paths of the filler 12 .

[0060] In some embodiments, the inner wall of the receiving cavity 10 may be further provided with a barrier film layer (not shown) to prevent the filler 12 from overflowing through the intermediate layer 15. The barrier film layer may be any film layer that does not allow liquid to flow through, such as high-temperature tape, silicone protective film, or fully cured colloid.

[0061] Furthermore, along the first direction X, the ratio of the length of the elastic layer 151 to the length of the accommodating cavity 10 is no greater than one-third. This allows the elastic layer 151 to block the side of the accommodating cavity 10 facing away from the cavity opening, while also increasing the length of the accommodating cavity 10. This allows the support structure 1 to store more filler 12 and ensures that sufficient filler 12 can be extruded 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 accommodating 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 made of other compressible materials that can be compressed along the thickness direction Z under the action of an external force.

[0062] In the above embodiment, the supporting structure 1 may specifically be a spacer block 4 .

[0063] Of course, in some other embodiments, see Figure 4c, which is a schematic diagram of the stacked structure of the composite tape provided in one embodiment of the present application; the support structure 1 can also be a composite tape 5, and the composite tape 5 includes a grid adhesive layer 51, a foam layer 52 and a copper foil layer 53 stacked in sequence, and the grid adhesive layer 51 is used to be bonded and fixed to the display panel 2. At least one of the foam layer 52 and the copper foil layer 53 has a receiving cavity 10; the filler 12 is specifically filled in the receiving cavity 10 on the foam layer 52 and / or the copper foil layer 53. Among them, when the receiving cavity 10 is formed in the copper foil layer 53, the specific structure of the copper foil layer 53 may be similar to the structure of the support base 11 shown in Figure 1b above. The other specific structures of the composite tape 5 are the same or similar to the specific structures and functions of the existing composite tapes used in display modules. For details, please refer to the prior art.

[0064] In other embodiments, the support structure 1 is a support film 3, and the support base 11 includes a first support portion 31 (BPF) and a second support portion 32 (BPF). When the support structure 1 is applied to a 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, it is bent toward the bonding portion 23 of the display module 100, and the second support portion 32 is located on the back side of the bonding portion 23, that is, it is bent toward the display portion 21. The spacer 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.

[0065] Alternatively, in other embodiments, the support structure 1 is located at any one or more of the support film 3, the spacer block 4, and the composite tape 5. Specific solutions can be found above.

[0066] The support structure 1 of the above embodiment can be stored in an environment of -10°C to -30°C, for example, in an environment of -15°C, 20°C, or 25°C. When the support structure 1 is to be used in the display module 100, it can be thawed in advance to ensure that the filler 12 in the support structure 1 has good fluidity, so that the filler 12 can flow out of the accommodating cavity 10 during use. Of course, storage at room temperature is also possible, but the effect is relatively poor.

[0067] 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 received within the receiving cavity 10. When a force is applied to the support base 11, at least a portion of the filler 12 within the receiving cavity 10 can move from the receiving cavity 10 to the outside of the support structure 1.

[0068] In this way, when the support structure 1 is applied to the display module 100, the display module 100 is squeezed by external force when it is bonded and bent. The filler 12 in the support structure 1 can be moved to the bending area of ​​the display module 100 under the force, thereby providing support for the bending area of ​​the display module 100, reducing the risk of deformation of the bending portion 22 of the display module 100 when squeezed by external force, thereby avoiding the problem of poor display of the display panel 2 due to deformation of the bending portion 22; further, the risk of damage caused by squeezing the bending portion 22 can also be reduced. In addition, by making the filler 12 come from the support structure 1 applied to the display module 100, that is, from the display module 100 itself; in this way, during the preparation of the display module 100, external force can directly squeeze the support structure 1, so that the filler 12 in the support structure 1 directly enters the bending area of ​​the display module 100 to support the bending portion 22; compared with the existing technology, this solution reduces the related processes such as dispensing, thickness measurement, and detection in the bending area, and is simple to operate and low in cost.

[0069] Refer to Figure 5, which is a structural diagram of a display module provided in one embodiment of the present application; in this embodiment, a display module 100 is provided, and the display module 100 can 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 is any of the above-mentioned support structures. No further description is given here. It is worth noting that the support structures 1 marked in Figure 5 are multiple for illustration purposes only, and it is not necessary to have three. Of course, it can be any one of them, or it can be two.

[0070] In other embodiments, the display panel 2 may be a flexible display panel for displaying images during operation. As shown in FIG5 , the display panel 2 includes a display portion 21, a bending portion 22, and a bonding portion 23. The display portion 21 has a display surface and a back surface facing each other, and the display surface of the display portion 21 is used to display images during operation. The bonding portion 23 is bent to the back surface of the display portion 21 and is stacked with the display portion 21 along the thickness direction Z of the display module 100. The bending portion 22 connects one end of the display portion 21 and one end of the bonding portion 23 together; and the bending portion 22 may be specifically curved.

[0071] Specifically, the display portion 21 of the display panel 2 is used for display, while the bent portion 22 and the bonding portion 23 are used for wiring. The wiring on the bent portion 22 and the bonding portion 23 controls the display of the display portion 21. Of course, in other embodiments, both the display portion 21 and the bent portion 22 of the display panel 2 are used for display, thereby improving the display quality 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 bent portion 22. Alternatively, the bonding portion 23, the display portion 21, and the bent portion 22 of the display panel 2 can all be used for display, thereby increasing the display area of ​​the display module 100. The support structure 1 is disposed on the back of the display panel 2, between the display portion 21 and the bonding portion 23. This ensures a certain distance between the display portion 21 and the bonding portion 23, preventing the bent portion 22 from bending at an excessive angle and causing wiring breakage, and / or maintaining the bent shape of the display module 100.

[0072] The display module 100 provided in this embodiment includes a display panel 2 and the support structure 1 involved in the above embodiment. In this way, when the display module 100 is under pressure, 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) under force to provide support for the bending area of ​​the display module 100, thereby reducing the risk of deformation of the bending portion 22 of the display module 100 when squeezed by external force, thereby avoiding the problem of poor display of the display panel 2 due to deformation of the bending portion 22; further, the risk of damage to the bending portion 22 due to squeezing can also be reduced. In addition, by making the filler 12 come from the support structure 1 applied to the display module 100, that is, from the display module 100 itself; in this way, the external force can directly squeeze the support structure 1, so that the filler 12 in the support structure 1 directly enters the bending area of ​​the display module 100 to support the bending portion 22; compared with the existing technology, this solution reduces related processes such as dispensing, is simple to operate, and has low cost.

[0073] Referring to Figures 6a and 6b, Figure 6a is a schematic diagram of the structure of a display module provided in one embodiment of the present application, without a filling medium within the first cavity; Figure 6b is a schematic diagram of the structure of the display module shown in Figure 6a after the first cavity is filled with a filling medium. In this embodiment, a display module 100 is provided. This display module 100 may be an OLED display module for displaying an image during operation; this display module 100 includes a display panel 2 and a support assembly. The structure and function of this display panel 2 are the same or similar to those of the aforementioned display panel 2. For details, please refer to the aforementioned display panel 2 and will not be further described here.

[0074] The support assembly is disposed between the display portion 21 and the bonding portion 23, and encloses the first cavity 20 with the bent portion 22. In some embodiments, the support assembly includes a cushioning structure. This cushioning structure is formed after at least a portion of the filler of the support structure 1 described above moves into the first cavity 20. The filler in the first cavity 20 solidifies to form a filling medium 41. Specifically, the filling medium 41 is formed by solidifying the filler 12 that moves from the accommodating cavity 10 of the support structure 1 into the first cavity 20. It is understood that, for example, when the support structure 1 is subjected to pressure, the filler 12 in the accommodating cavity 10 can move into the first cavity 20. After solidification, the filler forms the filling medium 41, providing support for the bent portion 22 of the display panel 2, reducing the risk of deformation of the bent portion 22 when subjected to external pressure, thereby preventing poor display quality of the display panel 2 caused by deformation of the bent portion 22. Furthermore, the risk of damage to the bent portion 22 caused by compression can be reduced.

[0075] In some embodiments, the filling medium 41 fills at least 80% of the first cavity 20 to ensure that the filling medium 41 supports the bending portion 22 and prevents deformation of the bending portion 22. For example, the filling medium 41 fills 85%, 90%, or 95% of the first cavity 20.

[0076] As shown in Figure 6b, in this embodiment, the support assembly includes a support film 3, a spacer block 4, and a composite tape 5. The spacer structure is any one or more of the support film 3, the spacer block 4, and the composite tape 5. It should be understood that the support film 3, the spacer block 4, and the composite tape 5 corresponding to this embodiment are all the structures of the support film 3, the spacer block 4, and the composite tape 5 involved in the above-mentioned support structure after being compressed.

[0077] The supporting film 3 includes a first supporting portion 31 and a second supporting portion 32. The first supporting 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 supporting 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 supporting portion 31 and / or the second supporting portion 32 can be a structure with a certain support property, such as a steel sheet or a copper sheet. When the raising structure is the supporting film 3, the specific structure and function of the supporting film 3 can refer to the relevant description of the embodiment in which the supporting structure 1 is the supporting film 3.

[0078] The spacer block 4 is disposed between the first support portion 31 and the second support portion 32. This ensures a certain spacing distance between the display portion 21 and the bonding portion 23, preventing the bending portion 22 from bending or folding at an excessively large angle, which may result in wiring breakage. In some specific embodiments, since the display panel 2 itself has a certain degree of elasticity, the folded display panel 2 may be driven to return to its unfolded state, thereby causing the second support portion 32 and the spacer block 4 to separate from each other, affecting the packaging effect. To this end, the spacer block 4 may be bonded and fixed to the second support portion 32 using an adhesive. When the spacer structure is the spacer block 4, the specific structure and function of the spacer block 4 can be found in the description of the embodiment in which the support structure 1 is the spacer block 4.

[0079] The composite tape 5 is positioned between the elevating block 4 and the first support portion 31. The composite tape 5 comprises a foam layer, a mesh adhesive layer, and a copper foil layer. The elevating structure comprises at least one of the foam layer and the copper foil layer. In a specific embodiment, the elevating block 4, the composite tape 5, the first support portion 31, the second support portion 32, and the bent portion 22 enclose a first cavity 20. This cavity 20 is filled with a filling medium 41 derived from the support structure 1.

[0080] It is understood that in some embodiments, the support assembly may include only the support film 3. In these embodiments, the raised structure may be one of the first support portion 31 and the second support portion 32, or both. Alternatively, the support assembly may include only the raised block 4. In these embodiments, the raised structure may be the raised block 4. Alternatively, the support assembly may include only the composite tape 5. In these embodiments, the raised structure may be at least one of the foam layer and the copper foil layer, or both.

[0081] The following embodiments of the present application are all described by taking the example that the support assembly includes a support film 3, a raising block 4 and a compliant tape, and the raising structure is the raising block 4.

[0082] Referring to Figures 7a and 7b, Figure 7a is a schematic diagram of the structure of the spacer block in the display module shown in Figure 6a; Figure 7b is a schematic diagram of the structure of the spacer block shown in Figure 7a without a filling medium in the second cavity. The spacer structure comprises a second cavity 30 connected to the first cavity 20. The second cavity 30 is a cavity formed after at least a portion of the filling material of the cavity 10 moves into the first cavity 20, such as a cavity formed by the pressure of the cavity 10. 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 and reduce the risk of deformation of the bent portion 22 when subjected to external pressure. In some embodiments, in conjunction with Figure 7a, the spacer structure includes a first supporting layer 13, a second supporting layer 14, and an intermediate layer located between the first supporting layer 13 and the second supporting layer 14, stacked along the thickness direction Z. The first supporting layer 13, the second supporting 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 is understood that the first supporting layer 13 and the second supporting layer 14 have the same structure and function as the first supporting layer 13 and the second supporting layer 14 mentioned above, and the intermediate layer is the structure of the intermediate layer 15 mentioned above after being compressed.

[0083] In other embodiments, the filler 12 in the support structure 1 can also be completely extruded, that is, the elevated 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).

[0084] Furthermore, as shown in FIG. 7 a , the display module may further include an adhesive layer 16 for fixing the relative positions of the raising block 4 , the composite tape 5 , the support film 3 and the display panel 2 . The material of the adhesive layer is preferably acrylic adhesive.

[0085] In conjunction with Figure 6b and Figure 7a, in this embodiment, the filling medium 41 fills no less than 80% of the first cavity 20 and no less than 80% of the second cavity 30 (see Figure 7b). Preferably, the filling medium 41 fills no less than 95% of the first cavity 20 and no less than 95% of the second cavity 30. The filling medium 41 filled in the first cavity 20 is used to support the bent portion 22 of the display panel 2, thereby reducing the risk of deformation of the bent portion 22 when squeezed by external forces, resulting in poor display of the display panel 2. The filling medium 41 filled in the second cavity 30 is used to fill the gap between the intermediate layer 15 and the accommodating cavity 10.

[0086] Referring to Figure 8 , Figure 8 is a schematic diagram of the structure of the second cavity on the raised block in Figure 6b according to one embodiment of the present application. 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 the sponge layer separates the first sub-cavity 301 from the second sub-cavity 302 and the third sub-cavity 303. In conjunction with Figure 9 , Figure 9 is a cross-sectional view of the display module shown in Figure 6b according to one embodiment of the present application, taken along the plane where the intermediate layer is located; the filling medium 41 may also include a first medium portion 411, a second medium portion 412, and a third medium portion 413.

[0087] 6b and 9 , a portion of the third dielectric portion 413 is filled within 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 compression. Another portion is filled within the third sub-cavity 303 to support the first supporting layer 13 and the second supporting layer 14, thereby bridging the gap between the intermediate layer 15 and the third sub-cavity 303. In this embodiment, the third dielectric portion 413 is preferably made of a high-modulus curing adhesive with a modulus of 400 MPa to 2000 MPa to improve the compression resistance of the bent portion 22 and the spacer 4.

[0088] A portion of the first dielectric portion 411 fills the first cavity 20, while another portion fills the first sub-cavity 301. Along the second direction Y, the first dielectric portion 411 is located on the first side of the third dielectric portion 413, isolating the first side of the third dielectric portion 413 from the external environment. This protects the first side of the third dielectric portion 413 from moisture or grease, thereby preventing it from entering the third dielectric portion 413 and thereby preventing any impact on the anti-extrusion capabilities of the bent portion 22 and the raised block 4. Preferably, the first dielectric portion 411 may be a grease-cured adhesive.

[0089] The second dielectric portion 412 is partially filled within the first cavity 20, and the remaining portion is filled within the second sub-cavity 302. This serves to isolate the second side of the third dielectric portion 413, which is opposite the first side, from the external environment, thereby protecting the second side of the third dielectric portion 413 and preventing external moisture or grease from entering the third dielectric portion 413, thereby preventing the bending portion 22 and the spacer block 4 from compressing. In this embodiment, the second dielectric portion 412 is preferably a grease-cured adhesive.

[0090] Of course, in some other embodiments, the second cavity 30 only includes the third sub-cavity 303, and the filling medium 41 only includes 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.

[0091] As shown in Figure 6b, the display module 100 also includes a circuit board 7 and a chip (IC) 8. The circuit board 7 and chip 8 are electrically connected to the bonding portion 23 and are located on the side of the bonding portion 23 facing away from the second support portion 32. The circuit board 7 is used to control the display of the display panel 2. The circuit board 7 may be a flexible printed circuit board. Specifically, the circuit board 7 and chip 8 are located on the side of the bonding portion 23 facing away from the display portion 21.

[0092] Of course, in a specific embodiment, as shown in Figure 6b, 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 refer to the specific structure and function of the relevant structural components in the existing display module 100, and the same or similar technical effects can be achieved, so they will not be repeated here.

[0093] 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 bent portion 22, and a bonding portion 23, which are sequentially connected. 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 bent portion 22, forms a first cavity 20. The support assembly includes a cushioning structure, which is the pressure-cured structure of the support structure 1 mentioned above. The first cavity 20 is filled with a filling medium 41, which is formed by curing the filler 12 that has moved from the accommodating cavity 10 of the support structure 1 into the first cavity 20. The filling medium 41 supports the bent portion 22 of the display module 100, effectively reducing damage to the display module caused by deformation, thereby improving the display performance of the display module 100.

[0094] Please refer to Figure 10, which is a simplified structural diagram of a display device provided in one embodiment of the present application. In this embodiment, a display device is provided that can achieve 3D display, i.e., curved display; the device can be a watch, a smartphone, a tablet computer, etc. The display device specifically includes the display module 100 involved in any of the above-mentioned embodiments. The specific structure and functions of the display module 100 can refer to the specific structure and functions of the display module 100 provided in the above-mentioned embodiments, and can achieve the same or similar technical effects, so it will not be repeated here.

[0095] Please refer to Figures 11 to 13. Figure 11 is a flow chart of a method for preparing a display module according to an embodiment of the present application; Figure 12 is a schematic diagram of the structure of a display module according to an embodiment of the present application before bending; and Figure 13 is a schematic diagram of the structure of a display module according to an embodiment of the present application after bending. In this embodiment, a method for preparing a display module is provided, which can be used to prepare the display module 100 according to any of the above embodiments. The method for preparing the display module 100 includes:

[0096] S1: Provide a display body; the display body includes a display panel and a supporting assembly; the display panel includes a display portion, a bending portion and a bonding portion connected in sequence, the bonding portion is bent to the back of the display portion and is stacked with the display portion in the thickness direction of the display module; the supporting assembly is arranged between the display portion and the bonding portion, and is surrounded by the bending portion to form a hollow cavity; and the supporting assembly includes a supporting structure as involved in any of the above embodiments; the cavity opening of the accommodating cavity of the support structure faces the hollow cavity.

[0097] In the specific implementation process, with reference to FIG12 and FIG13 , step S1 specifically includes:

[0098] S11: Setting a support assembly on the back of the display panel.

[0099] Among them, the display panel 2 includes a display part 21, a bending part 22 and a bonding part 23 connected in sequence along a first direction X; the supporting assembly includes a supporting film 3, a composite tape 5 and a padding block 4; the supporting film 3 includes a first supporting part 31 and a second supporting part 32, the first supporting part 31 is arranged on the back of the display part 21, and the second supporting part 32 is arranged on the back of the bonding part 23; the composite tape 5 is arranged on the side surface of the first supporting part 31 away from the display part 21; the padding block 4 is fixed to the side surface of the second supporting part 32 away from the bonding part 23.

[0100] Specifically, referring to Figure 12 , the display panel 2 has a display surface m and a back surface n facing each other. A circuit board 7 and a chip 8 are electrically connected to the display surface m of the bonding portion 23 of the display panel 2; a portion of the circuit board 7 is exposed through the display panel 2. The raised structure can be any one or more of a support film 3, a composite tape 5, and a raised block 4.

[0101] S12: bending the bending portion, and making the surface of the raising block facing away from the bonding portion fit with the surface of the first supporting portion facing away from the display portion.

[0102] As shown in FIG13 , the raising 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 raising block 4, the composite tape 5, and the bending portion 22 enclose 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 raising block 4 has a accommodating cavity 10, which is filled with a filler 12; it can be understood that the second cavity 30 shown in FIG7b is a cavity structure formed after part of the filler 12 in the accommodating cavity 10 is squeezed out, and the volume of the second cavity 30 is smaller than the volume of the accommodating cavity 10; specifically, the length dimension of the second cavity 30 is the same as the length dimension of the accommodating cavity 10, and the height of the second cavity 30 along the thickness direction Z is smaller than the height of the accommodating cavity 10 along the thickness direction Z.

[0103] 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 supporting portion 31 is located on the side of the display portion 21 facing the bonding portion 23, and the second supporting portion 32 is located on the side of the bonding portion 23 facing the display portion 21.

[0104] In this embodiment, the support structure 1 is a spacer 4. The specific structure and function of the spacer 4 can refer to the specific structure and function of the spacer 4 provided in any of the above embodiments, and can achieve the same or similar technical effects, so they will not be repeated here. It should be noted that the spacer 4 provided in the embodiment of the present application can be stored at a temperature of -30°C to -10°C to ensure that the filler 12 in its receiving cavity 10 maintains a certain degree of fluidity. The spacer 4 can be thawed in advance when needed.

[0105] It can be understood that the display body prepared in the above embodiment is the display module shown in FIG. 5 .

[0106] S2: applying a force to the display body so that at least a portion of the filler in the accommodating cavity is filled into the hollow cavity through the cavity opening.

[0107] Specifically, a pressure element is used to apply a force along the thickness direction Z to the display body to ensure stable bonding between the display panel 2, the support film 3, and the spacer block 4, and to squeeze out at least a portion of the filler 12 in the accommodating cavity 10. In a specific implementation, the pressure element can be applied by a method such as full pressure, rolling, or movement. For example, along the orientation shown in FIG13 , pressure can be gradually applied to the display body from left to right in the direction toward the cavity opening. Pressure can be applied from one side of the bonding portion to enhance the squeezing effect on the filler 12, so that the filler 12 is filled into the hollow cavity 40 as much as possible. During the process of applying the force, the display portion 21 and the bonding portion 23 approaching each other squeeze the cushioning structure, such as the cushioning block 4, and the sponge layer shrinks along the thickness direction Z under the squeezing of the first supporting layer 13 and the second supporting layer 14, so that at least part of the first filler 121, at least part of the second filler 122 and at least part 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 to form a first cavity 20.

[0108] In conjunction with Figure 3a and Figure 8 , after a force is applied to the display body, the accommodating 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 accommodating 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 dielectric portion 411. The second accommodating 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 dielectric portion 412. The third accommodating 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 dielectric portion 413.

[0109] Those skilled in the art will appreciate that the volume of the first sub-cavity 301 is smaller than the volume of the first accommodating cavity 101; specifically, the length of the first sub-cavity 301 is the same as the length of the first accommodating cavity 101, and the height of the first sub-cavity 301 along the thickness direction Z is smaller than the height of the first accommodating cavity 101 along the thickness direction Z. The volume of the second sub-cavity 302 is smaller than the volume of the second accommodating cavity 102; specifically, the length of the second sub-cavity 302 is the same as the length of the second accommodating cavity 102, and the height of the second sub-cavity 302 along the thickness direction Z is smaller than the height of the second accommodating cavity 102 along the thickness direction Z. The volume of the third sub-cavity 303 is smaller than the volume of the third accommodating cavity 103; specifically, the length of the third sub-cavity 303 is the same as the length of the third accommodating cavity 103, and the height of the third sub-cavity 303 along the thickness direction Z is smaller than the height of the third accommodating cavity 103 along the thickness direction Z.

[0110] It should be noted that in some embodiments, the intermediate layer 15 may comprise only an elastic layer 151, with the edges of the elastic layer 151 flush with the edges of the first supporting layer 13 and the second supporting layer 14. The filler 12 is 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, some filler 12 may remain within the elastic layer 151. In this case, the intermediate layer 15 comprises the elastic layer 151 and the filler 12 within the elastic layer 151. In other embodiments, the intermediate layer 15 may comprise only a filling layer 152. After a force is applied to the display body, the filler 12 in the filling layer 152 overflows from the spacer block 4, allowing the first supporting layer 13 and the second supporting layer 14 to be directly bonded, with the filler 12 contained solely within the first cavity 20.

[0111] After step S2 , the method further includes: curing all fillers in the display body to form a filling medium.

[0112] Specifically, in conjunction with 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 a third dielectric portion 413 to improve the extrusion resistance of the bending portion 22 and the spacer block 4. After the second filler 122 is cured, it forms the second dielectric portion 412, and after the first filler 121 is cured, it forms the first dielectric portion 411; prevent external moisture or grease from entering the third dielectric portion 413, thereby avoiding affecting the extrusion resistance of the bending portion 22 and the spacer block 4.

[0113] Referring to Figures 4a and 4b , prior to 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, such as during the preparation of the support structure 1; or after step S11 and before step S12; or after step S12.

[0114] In this embodiment, ultraviolet light can be used to irradiate the portion of the filler 12 exposed through the cavity opening to solidify the exposed filler 12 to form a solidified layer 153. The filler 12 in the accommodating cavity 10 remains in liquid form. Specifically, the thickness of the solidified 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 solidified layer 153 under the pressure of the first supporting layer 13 and the second supporting layer 14, and moves into the hollow cavity 40. In other embodiments, the solidified layer 153 can also be formed by thermal curing or room temperature curing. The appropriate curing method can be selected according to the type of adhesive.

[0115] The preparation method of the display module 100 provided in the embodiment of the present application is by providing a display body; the display body includes a display panel 2 and a supporting assembly; the display panel 2 includes a display part 21, a bending part 22 and a bonding part 23 connected in sequence, the bonding part 23 is bent to the back of the display part 21 and is stacked with the display part 21 in the thickness direction of the display module 100; the supporting assembly is arranged between the display part 21 and the bonding part 23, and is surrounded by the bending part 22 to form a hollow cavity 40; and the supporting assembly includes a supporting structure 1 as involved in any of the above embodiments; the cavity opening of the accommodating cavity 10 of the supporting structure 1 faces the hollow cavity 40; and then a force is applied to the display body so that at least part of the filler 12 in the accommodating cavity 10 is filled into the hollow cavity 40 through the cavity opening. This method ensures that the filler 12 comes from the support structure 1 applied to the display module 100, that is, from the display module 100 itself. In this way, during the preparation of the display module 100, external force can directly squeeze the support structure 1, so that the filler 12 in the support structure 1 directly enters the bending area of ​​the display module 100 to support the bending portion 22. Compared with the existing technology, this solution reduces related processes such as dispensing, is simple to operate, and has low cost.

[0116] The above is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A support structure, applied to a display module, comprising a support base and a filler, wherein the support base has a receiving cavity, the filler is received in the receiving cavity, and the filler can move from the receiving cavity to the outside of the support structure.

2. The support structure according to claim 1, wherein: The number of the accommodating cavity is at least one, and the accommodating cavity comprises a cavity opening, through which the accommodating cavity is connected with the outside.

3. The support structure according to claim 2, wherein: The number of the accommodating cavities is at least two, and the cavity openings of the plurality of accommodating cavities are located on the same side of the supporting substrate.

4. The support structure according to claim 2, wherein: The width of the accommodating cavity gradually decreases or increases in a direction toward the cavity opening.

5. The support structure according to claim 2, wherein: The accommodating cavity includes a first accommodating cavity and a second accommodating cavity; the filler includes a first filler and a second filler; the first filler is filled in the first accommodating cavity; and the second filler is filled in the second accommodating cavity.

6. The support structure according to claim 5, wherein: The accommodating cavity further includes a third accommodating cavity; the third accommodating cavity is located between the first accommodating cavity and the second accommodating cavity, and the filler further includes a third filler; the third filler is filled in the third accommodating cavity.

7. The support structure according to claim 6, wherein: The first filler and the second filler are made of the same material, and the third filler is made of a different material from the first filler.

8. The support structure according to claim 7, wherein: The first filler and the second filler are grease glue; the third filler is glue, and the viscosity of the glue is 100cP-1000cP.

9. The support structure according to claim 2, wherein: It also includes a blocking element, which is arranged at the cavity opening of the accommodating cavity.

10. The support structure according to claim 9, wherein: The blocking element is a solidified layer of the filler after solidification.

11. The support structure according to claim 1, wherein: The support substrate comprises a stacked first support layer, a second support layer and an intermediate layer located between the first support layer and the second support layer; The middle layer has at least one through hole, and along the thickness direction of the middle layer, the through hole penetrates the middle layer, and the through hole cooperates with the first supporting layer and the second supporting layer to form the accommodating cavity.

12. The support structure according to claim 11, wherein: The intermediate layer includes an elastic layer; and / or the inner wall of the accommodating cavity is provided with a barrier film layer.

13. A display module, comprising: A display panel and a supporting structure, wherein the supporting structure is the supporting structure described in any one of claims 1 to 12, and the supporting structure is arranged on the back side of the display panel.

14. A display module, comprising: A display panel and a supporting assembly; the display panel comprises a display portion, a bending portion and a bonding portion connected in sequence; The bonding portion is located on the back side of the display portion and is stacked with the display portion along the thickness direction of the display module; the supporting component is arranged between the display portion and the bonding portion, and is surrounded by the bending portion to form a first cavity; the supporting component includes a cushioning structure, which is a structure after at least part of the filler of the supporting structure as described in any one of claims 1 to 12 moves to the first cavity, and the filler located in the first cavity is solidified to form a filling medium.

15. The display module according to claim 14, wherein: Also includes: The support assembly includes a support film, and the support film 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 cushioning structure is at least one of the first support portion and the second support portion; Alternatively, the support assembly includes a padding block, and the padding structure is a padding block; Alternatively, the support assembly includes a composite tape, the composite tape includes a foam layer, a mesh adhesive layer and a copper foil layer, and the padding structure is at least one of the foam layer and the copper foil layer; Alternatively, the support assembly includes a support film, a padding block and a composite tape, and the padding structure is any one or more of the support film, the padding block and the composite tape.

16. The display module according to claim 14, wherein: The filling medium fills at least 80% of the first cavity.

17. The display module according to claim 16, wherein: The cushioning structure has a second cavity; the second cavity is the cavity after at least part of the filler in the accommodating cavity moves to the first cavity, and the second cavity is filled with the filling medium.

18. A method for preparing a display module, comprising: Providing a display body; the display body comprises a display panel and a supporting assembly; The display panel comprises a display portion, a bending portion and a bonding portion connected in sequence, the bonding portion is bent to the back of the display portion and is stacked with the display portion in the thickness direction of the display module; the support component is arranged between the display portion and the bonding portion, and is surrounded by the bending portion to form a hollow cavity; and the support component comprises the support structure according to any one of claims 1 to 12; the cavity opening of the accommodating cavity of the support structure faces the hollow cavity; A force is applied to the display body so that at least a portion of the filler in the accommodating cavity is filled into the hollow cavity through the cavity opening.

19. The preparation method according to claim 18, wherein: After the step of applying force to the display body so that at least part of the filler in the accommodating cavity is filled into the hollow cavity through the cavity opening, the method further includes: curing all the fillers in the display body to form a filling medium so that the hollow cavity becomes a first cavity.

20. A display device, comprising the display module according to any one of claims 13 to 17, or a display module manufactured by the method for manufacturing a display module according to claim 18 or 19.

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