Display module and display device

Abstract

The invention provides a display module and a display device. The display module comprises a display panel; the supporting layer is located on one side of the backlight face of the display panel and used for bearing the display panel; the side, close to the display panel, of the supporting layer is provided with a graphical part, and the graphical part comprises a plurality of grooves which are distributed in multiple columns at intervals in the first direction. According to the display module, the formation of stress concentration areas can be reduced, the stripping phenomenon caused by bending is reduced, and meanwhile, the portability of equipment is ensured.

Description

Technical Field

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

[0002] With the rapid development of display technology, flexible display devices, especially flexible organic light-emitting diode (OLED) display modules, have gradually become mainstream applications in the market. Flexible OLED modules have been widely used in portable devices such as smartphones and tablets due to their bendable and foldable properties.

[0003] However, traditional flexible display modules still face multiple technical challenges during the folding and curling process. First, the frame design of the flexible display module has an important impact on the overall size of the device, especially in folding devices. The narrow frame design can not only increase the display ratio of the screen, but also optimize the user's visual experience. However, since the flexible display material will produce a large stress concentration during the bending process, it is easy to cause peeling at the edge of the module, which in turn affects the display performance and module life. Secondly, the volume and weight of the curling structure are also one of the main challenges facing flexible OLED modules. Traditional curling designs often take up more space, increase the thickness and weight of the module, and affect the portability of the device. In addition, the stress accumulation during the curling process will increase the risk of damage to the module and reduce its durability.

[0004] Therefore, how to effectively reduce stress and peeling phenomenon while ensuring the portability of flexible display modules has become an urgent problem to be solved in the industry.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the invention

[0006] Based on this, the embodiments of the present application provide a display module and a display device, which can reduce the formation of stress concentration areas, reduce the peeling phenomenon caused by bending, and ensure the portability of the device.

[0007] According to some embodiments, the present application provides a display module, including:

[0008] Display panel;

[0009] A supporting layer, located on a backlight side of the display panel, and used for supporting the display panel;

[0010] The support layer has a patterned portion on one side close to the display panel, and the patterned portion includes a plurality of grooves spaced apart and distributed in a plurality of rows along a first direction.

[0011] In some embodiments, the ratio of the depth of the groove to the thickness of the support layer ranges from 1 / 30 to 1 / 3.

[0012] In some embodiments, the two grooves located in adjacent rows have different widths in the first direction; and / or the two grooves located in adjacent rows have different depths in the thickness direction of the display module.

[0013] In some embodiments, the groove comprises a strip-shaped groove extending along a second direction, and the second direction intersects with the first direction.

[0014] In some embodiments, the plurality of grooves are further spaced apart and distributed in a plurality of rows along a second direction, and the second direction intersects with the first direction.

[0015] In some embodiments, two grooves located in adjacent rows have the same size in the first direction and the second direction.

[0016] In some embodiments, the plurality of rows of grooves include first rows of grooves and second rows of grooves that are alternately distributed; wherein,

[0017] The ratio of the depth of the first row of grooves to the depth of the second row of grooves is in the range of 0.5 to 0.8; and / or the ratio of the width of the first row of grooves to the width of the second row of grooves is in the range of 0.5 to 0.8.

[0018] In some embodiments, the patterned portion includes a plurality of chain-shaped grooves that are spaced apart and extend in the same direction; wherein:

[0019] Each of the chain-shaped grooves includes a plurality of sub-segments connected in sequence, and an orthographic projection of each of the sub-segments on the display panel forms an angle with any edge of the display panel in the extending direction.

[0020] In some embodiments, the plurality of chain-shaped grooves include first chain-shaped grooves and second chain-shaped grooves that are alternately distributed;

[0021] The ratio of the depth of the first chain-shaped groove to the depth of the second chain-shaped groove is in the range of 0.5 to 0.8; and / or the ratio of the width of the sub-segment of the first chain-shaped groove to the width of the sub-segment of the second chain-shaped groove is in the range of 0.5 to 0.8.

[0022] In some embodiments, the distance between any two adjacent grooves ranges from 1 mm to 3 mm.

[0023] In some embodiments, the patterned portion is formed by patterning a surface of the support layer on a side close to the display panel using an etching process and / or a laser processing process.

[0024] In some embodiments, the patterned portion further includes an adhesive structure filled in the groove.

[0025] According to some embodiments, the present application further provides a display device, including the display module provided in some of the above embodiments.

[0026] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application.

[0027] The embodiments of the present application may or at least have the following advantages:

[0028] In the embodiment of the present application, a patterned portion is provided on a side of the support layer close to the display panel, and the patterned portion includes multiple rows of grooves spaced apart along a first direction, so that stress can be effectively dispersed during the bending or curling process of the display module. Since the patterned portion is provided as multiple rows of grooves spaced apart, it is beneficial to buffer stress transfer and reduce the formation of stress concentration areas, so that stress of the display module is effectively released when it is folded or curled, thereby reducing the peeling phenomenon caused by bending, avoiding damage to the display module caused by frequent folding, improving the durability and reliability of the display module, and thus improving the service life of the display device.

[0029] In addition, by introducing multiple rows of grooves in the support layer as the patterned part, the material usage of the support layer can be reduced, effectively reducing the overall weight of the display module. The design of the patterned part reduces the weight of the display module without significantly increasing the thickness of the module, thus maintaining the thin and light characteristics of the display module, which has great application value for portable devices (such as foldable screen mobile phones, tablets, etc.), and can further improve the portability of the device.

[0030] Other advantages, objectives and features of the present application will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or can be taught from the practice of the present application to some extent. The objectives and other advantages of the present application can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings.

[0032] Figure 1A schematic diagram of a top view of a display module provided in some embodiments of the present application;

[0033] Figure 2 A schematic diagram of a top view of a curled display module provided in some embodiments of the present application;

[0034] Figure 3 A schematic diagram of a cross-sectional structure of a display module provided in some embodiments of the present application;

[0035] Figure 4 A schematic diagram of a top view of a display module provided in some other embodiments of the present application;

[0036] Figure 5 A schematic diagram of a cross-sectional structure of a display module provided in some other embodiments of the present application;

[0037] Figure 6 A schematic diagram of a top view of a display module provided in some embodiments of the present application;

[0038] Figure 7 A schematic diagram of a cross-sectional structure of a display module provided in some other embodiments of the present application;

[0039] Figure 8 A schematic diagram of the structure of a display device provided in some embodiments of the present application.

[0040] Description of reference numerals:

[0041] 11. Support layer; 111. Grooves; 112. Adhesive structure; 11a. Strip-shaped grooves; 111a. First row of grooves; 112a. Second row of grooves; 11d. Chain-shaped grooves; 11d'. Sub-segment; 111d. First chain-shaped grooves; 112d. Second chain-shaped grooves; 10. Display module; 12. Display panel; 1. Display device. DETAILED DESCRIPTION

[0042] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0044] In the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity. It is understood that when a layer or element is referred to as being "on" another layer or substrate, the layer or element may be directly on the other layer or substrate, or there may be intervening layers. In addition, it is also understood that when a layer is referred to as being "between" two layers, the layer may be the only layer between the two layers, or there may be one or more intervening layers. In addition, the same reference numerals always represent the same elements.

[0045] Hereinafter, although terms such as "first", "second", etc. may be used to describe various components, these components are not necessarily limited to the above terms. The above terms are only used to distinguish one component from another. It will also be understood that expressions used in the singular include plural expressions unless the expression in the singular has an obviously different meaning in the context.

[0046] The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items. As used in the application documents, the term "and / or" includes any and all combinations of one or more of the relevant listed items. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0047] Traditional flexible display modules face multiple technical challenges during the folding and curling process. First, the frame design of the flexible display module has an important impact on the overall size of the device, especially in folding devices. The narrow frame design can not only increase the display ratio of the screen, but also optimize the user's visual experience. However, since the flexible display material will produce a large stress concentration during the bending process, it is easy to cause peeling at the edge of the module, which in turn affects the display performance and module life. Secondly, the volume and weight of the curling structure are also one of the main challenges facing flexible OLED modules. Traditional curling designs often take up more space, increase the thickness and weight of the module, and affect the portability of the device. In addition, the stress accumulation during the curling process will increase the risk of damage to the module and reduce its durability.

[0048] In view of the above-mentioned deficiencies, the present application provides a display module and a display device, which can reduce the formation of stress concentration areas, reduce the peeling phenomenon caused by bending, and ensure the portability of the device.

[0049] See also Figures 1 to 3 The present application provides a display module, which includes a display panel and a support layer 11 .

[0050] The support layer 11 is located on the backlight side of the display panel and is used to support the display panel. Figure 1 and Figure 3 As shown, the support layer 11 has a patterned portion on one side close to the display panel, and the patterned portion may include a first direction (eg Figure 1 and Figure 3 A plurality of grooves 111 are spaced apart and distributed in a plurality of rows (in the x direction shown in FIG. 1 ).

[0051] In the above display module, a patterned portion is provided on a side of the support layer 11 close to the display panel, and the patterned portion includes a first direction (eg Figure 1 and Figure 3 The multiple rows of grooves 111 spaced apart (in the x direction shown in FIG) can effectively disperse stress during the bending or curling of the display module. Since the patterned portion is configured as multiple rows of grooves 111 spaced apart, it is beneficial to buffer stress transfer and reduce the formation of stress concentration areas, so that the stress of the display module is effectively released when it is folded or curled, thereby reducing the peeling phenomenon caused by bending, avoiding damage to the display module due to frequent folding, improving the durability and reliability of the display module, and thus improving the service life of the display device.

[0052] In addition, the introduction of multiple rows of grooves 111 in the support layer 11 as the patterned portion can also reduce the material usage of the support layer 11, effectively reducing the overall weight of the display module. The design of the patterned portion reduces the weight of the display module without significantly increasing the thickness of the module, thereby maintaining the thin and light characteristics of the display module, which has great application value for portable devices (such as foldable screen mobile phones, tablet computers, etc.), and can further improve the portability of the device.

[0053] The present application embodiment does not specifically limit the thickness of the support layer 11. The thickness of the support layer 11 specifically refers to the thickness of the support layer 11 in a direction perpendicular to the bottom surface of the support layer 11 (for example, Figure 3 The thickness in the z direction (shown in FIG. 1 ) is 20 .

[0054] As an example, the thickness range of the support layer 11 may include 0.15mm to 0.3mm. For example, the thickness of the support layer 11 may be 0.15mm, 0.2mm or 0.3mm, etc. The support layer 11 with a thickness range of 0.15mm to 0.3mm has sufficient strength to effectively support and protect the display panel, and prevent deformation or breakage during daily use and multiple bending and curling processes; at the same time, this thickness range of the support layer 11 is conducive to reducing the overall thickness of the display module while meeting the structural strength, so that the device maintains its light and thin characteristics, while taking into account the flexibility requirements of the device.

[0055] Therefore, controlling the thickness of the support layer 11 between 0.15 mm and 0.3 mm is particularly important for flexible display devices (such as foldable screen mobile phones and tablets) that require portability and aesthetics, so that users can get a lighter product experience.

[0056] The embodiment of the present application does not specifically limit the spacing between any two adjacent grooves 111 in the support layer 11. In some embodiments, the spacing between any two adjacent grooves 111 may range from 1 mm to 3 mm. For example, the spacing between any two adjacent grooves 111 in the support layer 11 may be 1 mm, 1.5 mm, 2 mm, 2.5 mm, or 3 mm, etc. By controlling the spacing between adjacent grooves 111 to be between 1 mm and 3 mm, the grooves 111 are distributed based on a more moderate spacing, which is conducive to dispersing stress more evenly during the bending process, thereby further reducing the stress concentration area.

[0057] The embodiment of the present application does not specifically limit the size of the groove 111 provided in the support layer 11. The depth of the groove 111 specifically refers to the direction in which the groove 111 is perpendicular to the surface of the support layer 11 (for example, Figure 3 The depth in the z direction (shown in ).

[0058] In some embodiments, the ratio of the depth of the groove 111 to the thickness of the support layer 11 may range from 1 / 30 to 1 / 3. For example, the ratio of the depth of the groove 111 to the thickness of the support layer 11 may be 1 / 30, 1 / 20, 1 / 10, 1 / 5 or 1 / 3, etc.

[0059] As an example, the depth range of the groove 111 may include 0.01mm to 0.05mm. For example, the depth of the groove 111 may be 0.01mm, 0.03mm or 0.05mm, etc. By controlling the depth of the groove 111 to be between 0.01mm and 0.05mm, the groove 111 can effectively disperse stress when bending or curling, and will not weaken the structural strength of the support layer 11 due to excessive depth. In this way, the strength of the support layer 11 is maintained, and the bending requirements of the display module during use can be met.

[0060] In addition, the shallow groove 111 as above is also convenient for precise processing, which is beneficial to improving the production efficiency of the display module and reducing the production cost.

[0061] In some embodiments, two grooves 111 located in adjacent rows may be arranged in a first direction (eg Figure 3 have different widths in the x-direction (shown in FIG. ).

[0062] For example Figure 3 As shown in FIG. 1 , two grooves 111 located in adjacent rows are arranged in a first direction (eg Figure 3 In the x-direction (shown in FIG. 1 ), the two electrodes have different widths w1 and w2 , respectively.

[0063] In the above embodiment, by setting adjacent grooves 111 to different widths, the grooves 111 in adjacent columns are made to have different widths, thereby providing variable structural support points for the supporting layer 11, which is beneficial to alleviate material fatigue during multiple bending processes, thereby further improving the reliability of the display module and avoiding fatigue accumulation caused by uniform groove design.

[0064] Furthermore, the groove design with different widths can be flexibly adjusted according to actual application requirements. For example, in the part where the flexibility of the bending area needs to be enhanced, the width of the groove 111 can be increased; and in the area where the support and stability need to be enhanced, the width of the groove 111 can be reduced. Therefore, the groove design with different widths is flexible, which can make the display module more adaptable and meet the specific needs of different devices.

[0065] In some embodiments, two grooves 111 located in adjacent rows may also have different depths in the thickness direction of the display module, and the details will be further described in subsequent embodiments.

[0066] See also Figure 4 In some embodiments, the groove 111 may specifically include a strip-shaped groove 11 a extending along the second direction.

[0067] It should be noted that, in this article, the second direction intersects with the first direction, for example Figure 4 The y direction shown in .

[0068] The strip-shaped groove 11a can provide a continuous stress release path, so that during the bending or curling process, the support layer 11 can evenly disperse the stress along the extension direction (second direction) of the strip-shaped groove 11a. Therefore, setting the groove 111 as a strip-shaped groove 11a is conducive to further reducing the risk of stress concentration in a local area, thereby avoiding the display module from cracking or peeling after multiple bending.

[0069] Moreover, the shape of the strip groove 11a is easy to be quickly processed and formed by etching or laser processing, and the process flow is relatively simplified. The continuous pattern design similar to the strip groove 11a is not only easy to control the size and depth of the groove 111, but also can reduce the error in the processing process, thereby improving the production efficiency and product consistency of the display module.

[0070] In some other embodiments, the plurality of grooves 111 may also be arranged along the second direction (eg Figure 1The plurality of grooves 111 are arranged in an array, and each groove 111 shares and releases stress in different directions, which helps to avoid the phenomenon of stress concentration in a single direction or position, and further reduces the risk of peeling and breaking of the display module during use. In particular, when used repeatedly, the plurality of grooves 111 arranged in an array can reduce material loss and extend the service life of the display module.

[0071] For example, Figure 1 As shown, two grooves 111 located in adjacent rows are arranged in a first direction (eg Figure 1 ) and a second direction (eg, Figure 1 y direction shown in FIG. 1 ) have the same size.

[0072] For ease of description, please combine Figure 4 and Figure 5 It is understood that in the following embodiments, the plurality of rows of grooves 111 are defined to include first rows of grooves 111 a and second rows of grooves 111 b that are alternately distributed.

[0073] In some embodiments, the ratio of the width of the first row of grooves 111 to the width of the second row of grooves 111 may range from 0.5 to 0.8. For example, the ratio of the width of the first row of grooves 111 to the width of the second row of grooves 111 may be 0.5, 0.6, 0.7 or 0.8, etc.

[0074] For example, Figure 5 In the display module shown in , the ratio of the width w1 of the first column of grooves 111 to the width w2 of the second column of grooves 111 may range from 0.5 to 0.8.

[0075] Please continue reading Figure 5 ,exist Figure 5 In the display module shown in FIG. 1 , two grooves 111 located in adjacent rows (a first row of grooves 111 a and a second row of grooves 111 b adjacent thereto) have different depths in the thickness direction of the display module.

[0076] For example, the ratio of the depth h1 of the first row of grooves 111a to the depth h2 of the second row of grooves 111b may range from 0.5 to 0.8. For example, the ratio of the depth h1 of the first row of grooves 111a to the depth h2 of the second row of grooves 111b may be 0.5, 0.6, 0.7 or 0.8, etc.

[0077] In the above embodiment, by setting adjacent grooves 111 to different depths, variable structural support points are provided for the supporting layer 11, which is beneficial to alleviate material fatigue during multiple bending processes, thereby further improving the reliability of the display module and avoiding fatigue accumulation caused by uniform groove design.

[0078] Furthermore, the groove design of different depths can be flexibly adjusted according to actual application requirements. For example, in the part where the flexibility of the bending area needs to be enhanced, the depth of the groove 111 can be increased; and in the area where the support and stability need to be enhanced, the depth of the groove 111 can be reduced. Therefore, the groove design of different depths is flexible, which can make the display module more adaptable and meet the specific needs of different devices.

[0079] See also Figure 6 and Figure 7 In some embodiments, the patterned portion may further include a plurality of chain-shaped grooves 11d that are spaced apart and extend in the same direction.

[0080] like Figure 6 As shown, in the above embodiment, each chain-shaped groove 11d may specifically include a plurality of sub-segments 11d' connected in sequence. The orthographic projection of each sub-segment 11d' on the display panel has an angle with any edge of the display panel in the extension direction. When subjected to force, the design of the chain-shaped groove 11d can better disperse the stress and further reduce the risk of the display module being broken or deformed.

[0081] For ease of description, please combine Figure 6 and Figure 7 It is understood that, in the following embodiments, the plurality of chain-shaped grooves 11 d are defined to include first chain-shaped grooves 111 d and second chain-shaped grooves 112 d that are alternately distributed.

[0082] For example, Figure 7 In the display module shown in , the depth of the first chain-shaped groove 111 d and the depth of the second chain-shaped groove 112 d may be the same.

[0083] In addition, in other embodiments, the ratio of the depth of the first chain-shaped groove 111d to the depth of the second chain-shaped groove 112d may also range from 0.5 to 0.8. For example, the ratio of the depth of the first chain-shaped groove 111d to the depth of the second chain-shaped groove 112d may be 0.5, 0.6, 0.7 or 0.8, etc.

[0084] Furthermore, in some embodiments, the width of the sub-segment 11d' of the first chain-shaped groove 111d is substantially the same as the width of the sub-segment 11d' of the second chain-shaped groove 112d. Figure 6 The width ratio range of the first chain-shaped groove 111d and the second chain-shaped groove 112d may include 0.5 to 0.8. Figure 6 The width ratio (not marked) can be 0.5, 0.6, 0.7 or 0.8, etc.

[0085] In the embodiment of the present application, the patterned portion can be formed by patterning the surface of the support layer 11 on one side close to the display panel using an etching process and / or a laser processing process.

[0086] The etching process and the laser processing process can achieve a detailed and precise graphical processing on the surface of the support layer 11, so that the formed groove 111 has a depth and width that highly meets the design requirements. This precise processing can help more effectively disperse the stress generated by the display module during bending or curling, reduce the occurrence of stress concentration areas, and further reduce the risk of display module peeling.

[0087] Since the etching process and the laser processing process are highly controllable, the use of the etching process and the laser processing process can also simplify the process steps to facilitate large-scale production, thereby helping to improve production efficiency.

[0088] It can be understood that in the embodiment of the present application, although the support layer 11 reduces material usage through the groove 111 design, the groove design of its patterned portion enables the support layer 11 to form a certain structural reinforcement effect on its surface, thereby maintaining the overall structural strength of the display module.

[0089] In some embodiments, the patterned portion may further include an adhesive structure 112 filled in the groove 111. By filling the groove 111 with an adhesive structure 112 having an enhanced adhesive effect, the display panel can be more firmly fixed to the surface of the support layer 11, which helps to further improve the structural strength and stability of the display module and reduce the risk of deformation of the display module during curling and unfolding.

[0090] Specifically, a pressure-sensitive adhesive (PSA) material may be injected into the groove 111 by dispensing to serve as the bonding structure 112 , but the present invention is not limited thereto.

[0091] By dispensing the PSA adhesive into the groove 111, the PSA adhesive can closely adhere to the surface of the support layer 11 along the contour of the groove 111, thereby effectively increasing the actual bonding area between the support layer 11 and the display panel. In this way, the geometric characteristics of the groove 111 can be better utilized to evenly distribute the PSA adhesive inside each groove 111.

[0092] In addition, by dispensing the PSA adhesive into the groove 111 to form the bonding structure 112 , the filling amount and distribution position of the PSA adhesive can be controlled to avoid excessive overflow or concentrated accumulation of the PSA adhesive, thereby ensuring the uniformity and stability of the bonding structure 112 .

[0093] Those skilled in the art will appreciate that the structures shown in the accompanying drawings are merely schematic diagrams of parts of the structures related to the present application, and do not constitute limitations on other components to which the present application is applied. In actual embodiments, the display module may include more or fewer components than those shown in the drawings, or combine certain components, or have a different arrangement of components.

[0094] Based on the same inventive concept, the present application also provides a display device. Figure 8 The display device 1 includes a display module 10 as provided in the above embodiment. The display module 10 includes a display panel 12 and a support layer 11 . The support layer 11 is located on the backlight side of the display panel 12 and is used to support the display panel 12 .

[0095] Exemplarily, the display device 1 can be any electronic device with a display function, such as a vehicle-mounted display device, a mobile phone, a computer, a smart wearable device (for example, a smart watch), etc., and the embodiments of the present application are not limited to this.

[0096] The specific limitations of the display module 10 have been described in detail in the above embodiments, and will not be repeated here. The technical effects that can be achieved by the above display module 10 can also be achieved by the display device 1, and will not be described in detail here.

[0097] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features of the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0098] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A display module, characterized in that: include: Display panel; A supporting layer, located on a backlight side of the display panel, and used for supporting the display panel; The support layer has a patterned portion on one side close to the display panel, and the patterned portion includes a plurality of grooves spaced apart and distributed in a plurality of rows along a first direction.

2. The display module according to claim 1, characterized in that: The ratio of the depth of the groove to the thickness of the support layer ranges from 1 / 30 to 1 / 3.

3. The display module according to claim 1, characterized in that: The two grooves located in adjacent rows have different widths in the first direction; and / or the two grooves located in adjacent rows have different depths in the thickness direction of the display module.

4. The display module according to claim 1, characterized in that: The groove includes a strip-shaped groove extending along a second direction, and the second direction intersects with the first direction.

5. The display module according to claim 1, characterized in that: The plurality of grooves are also spaced apart and distributed in a plurality of rows along a second direction, and the second direction intersects with the first direction.

6. The display module according to claim 5, characterized in that: Two grooves located in adjacent rows have the same size in the first direction and the second direction.

7. The display module according to claim 1, characterized in that: The plurality of rows of grooves include a first row of grooves and a second row of grooves that are alternately distributed; wherein, The ratio of the depth of the first row of grooves to the depth of the second row of grooves is in the range of 0.5 to 0.8; and / or the ratio of the width of the first row of grooves to the width of the second row of grooves is in the range of 0.5 to 0.

8.

8. The display module according to claim 1, characterized in that: The patterned portion includes a plurality of chain-shaped grooves that are spaced apart and extend in the same direction; wherein, Each of the chain-shaped grooves includes a plurality of sub-segments connected in sequence, and an orthographic projection of each of the sub-segments on the display panel forms an angle with any edge of the display panel in the extending direction.

9. The display module according to claim 8, characterized in that: The plurality of chain-shaped grooves include first chain-shaped grooves and second chain-shaped grooves that are alternately distributed; The ratio of the depth of the first chain-shaped groove to the depth of the second chain-shaped groove is in the range of 0.5 to 0.8; and / or the ratio of the width of the sub-segment of the first chain-shaped groove to the width of the sub-segment of the second chain-shaped groove is in the range of 0.5 to 0.

8.

10. The display module according to claim 1, characterized in that: The distance between any two adjacent grooves ranges from 1 mm to 3 mm.

11. The display module according to any one of claims 1 to 10, characterized in that: The patterned portion is formed by patterning a surface of the support layer on one side close to the display panel using an etching process and / or a laser processing process.

12. The display module according to any one of claims 1 to 10, characterized in that: The patterning portion further includes an adhesive structure filled in the groove.

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

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