Display module and electronic device

By setting up a distribution area of support columns in the display module, and using support columns to effectively support the packaging cover plate, especially in the corner areas, the poor display effect caused by the Newton ring phenomenon is solved, and the display effect of electronic devices is improved.

CN114709352BActive Publication Date: 2025-07-22KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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Patent Information

Application Number
CN202210365959.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-04-08
Publication Date
2025-07-22
Estimated Expiration
2042-04-08

AI Technical Summary

Technical Problem

When electronic equipment is used outdoors, the display effect is affected by the Newtonian ring phenomenon, especially in the case of strong ambient light, resulting in poor user experience.

Method used

In the display module, by setting up a distribution area of support columns to extend its outer circumference along the packaging layer on the packaging cover plate, and the distance between the corner area and the packaging layer is not greater than the distance at other positions, the supporting columns are used to effectively support the packaging cover plate, especially in the corner area, so as to reduce the size difference of the microcavity and reduce the deformation of the packaging cover plate.

Benefits of technology

It effectively reduces the deformation curvature of the packaging cover plate, reduces the dimensional difference between microcavities, reduces the impact of the Newtonian ring phenomenon, and improves the display effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The display module and electronic device provided by the embodiments of the present application relate to the field of display technology. In the display module, the outer periphery of the support pillar distribution area extends along the extension direction of the encapsulation layer on the encapsulation cover plate, and the distance between the outer periphery of the support pillar distribution area and the encapsulation layer at the corner area of the display module is not greater than the distance between the outer periphery of the support pillar distribution area and the encapsulation layer at the long side and wide side positions of the display module. Such a design can effectively support the encapsulation cover plate through the support pillars arranged in the display substrate after encapsulating the encapsulation cover plate and the display substrate, especially effectively support the encapsulation cover plate corresponding to the corner area of the display module, thereby reducing the size difference of different microcavities formed between the display substrate and the encapsulation cover plate, so as to achieve the purpose of weakening the Newton's ring phenomenon and improving the display effect.
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Description

Technical Field

[0001] This application relates to the field of display technologies, and more particularly, to a display module and an electronic device. Background Art

[0002] When an electronic device (such as a smart terminal device) is in use, there is an obvious Newton's ring phenomenon, especially outdoors where the ambient light is strong. This phenomenon is more obvious, which affects the display effect and causes a bad user experience. Therefore, weakening the influence of the Newton's ring phenomenon on the display effect has become an urgent technical problem to be solved by those skilled in the art. Summary of the Invention

[0003] In order to overcome the technical problems mentioned in the above technical background, embodiments of this application provide a display module and an electronic device.

[0004] In a first aspect of this application, a display module is provided. The display module includes a display substrate, a packaging cover plate, and a packaging layer;

[0005] The packaging layer is close to the edges of the display substrate and the packaging cover plate and is located between the display substrate and the packaging cover plate;

[0006] The display substrate includes a substrate layer and support columns provided on the substrate layer. The support columns are distributed in the area enclosed by the packaging layer;

[0007] The outer periphery of the support column distribution area extends along the extension direction of the packaging layer on the packaging cover plate; the distance between the outer periphery of the support column distribution area and the packaging layer at the corner area of the display module is not greater than the distance between the outer periphery of the support column distribution area and the packaging layer at the long side and wide side positions of the display module.

[0008] In a possible embodiment of this application, the outer periphery of the support column distribution area is parallel to the extension direction of the packaging layer on the packaging cover plate.

[0009] In a possible embodiment of this application, the outer periphery of the support column distribution area bulges towards the packaging layer at the corner area of the display module.

[0010] In a possible embodiment of this application, the outer periphery of the support column distribution area includes a convex area towards the packaging layer at the area of the long side or wide side of the display module;

[0011] Preferably, the convex area is located at the quarter or half area of the long side or wide side of the display module.

[0012] In a possible embodiment of the present application, in the corner region of the display module, the distance between the outer periphery of the support pillar distribution region and the encapsulation layer is 0.9 mm to 1.7 mm;

[0013] The distance between the outer periphery of the support pillar distribution region and the encapsulation layer is 0.9 mm to 1.3 mm.

[0014] In a possible embodiment of the present application, in the direction perpendicular to the light-emitting surface of the display module, the support pillar is compressed, and the compression height of the support pillar is the height by which the support pillar protrudes relative to the encapsulation layer.

[0015] In a possible embodiment of the present application, the material of the encapsulation layer includes glass powder, filler, and binder. Among them, the mass percentage of the glass powder is 20% to 80%, the mass percentage of the filler is 5% to 40%, and the mass percentage of the binder is 10% to 40%;

[0016] The material of the support pillar is polyimide.

[0017] In a possible embodiment of the present application, the compression height of the support pillar is 0 μm to 1.59 μm;

[0018] Preferably, the compression height of the support pillar is 0.44 μm to 0.6 μm.

[0019] In a possible embodiment of the present application, the height of the support pillar increases from the center of the support pillar distribution region to the outer periphery of the support pillar distribution region.

[0020] In a second aspect of the present application, there is provided an electronic device, and the electronic device includes the display module in any one of the possible embodiments in the first aspect.

[0021] The embodiments of the present application provide a display module and an electronic device. In the display module, the outer periphery of the support pillar distribution region extends along the extension direction of the encapsulation layer on the encapsulation cover plate. The distance between the outer periphery of the support pillar distribution region and the encapsulation layer at the corner region of the display module is not greater than the distance between the outer periphery of the support pillar distribution region and the encapsulation layer at the long side and wide side positions of the display module. Such a design can effectively support the encapsulation cover plate through the support pillars provided in the display substrate after encapsulating the encapsulation cover plate and the display substrate, especially effectively support the encapsulation cover plate corresponding to the corner region of the display module, reduce the deformation of the encapsulation cover plate at the corner region, so as to reduce the deformation curvature of the entire encapsulation cover plate, and further reduce the size difference of different microcavities formed between the display substrate and the encapsulation cover plate, so that the optical path difference between the lights reflected by different microcavities is reduced, achieving the purpose of weakening the Newton's ring phenomenon and ensuring the display effect. Description of the Drawings

[0022] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0023] Figure 1 Schematic diagram showing a partial film layer structure of an existing display module before encapsulation;

[0024] Figure 2 Schematic diagram showing a partial film layer structure of an existing display module after encapsulation;

[0025] Figure 3 Schematic diagram showing the positional relationship between the support pillar distribution area and the encapsulation layer;

[0026] Figure 4 Schematic diagram showing the film layer structure of the display module provided by the embodiment of the present application after encapsulation;

[0027] Figure 5 Schematic diagram showing one of the positional relationships between the support pillar distribution area provided by the embodiment of the present application and the encapsulation layer;

[0028] Figure 6 Schematic diagram showing another of the positional relationships between the support pillar distribution area provided by the embodiment of the present application and the encapsulation layer;

[0029] Figure 7 Schematic diagram showing yet another of the positional relationships between the support pillar distribution area provided by the embodiment of the present application and the encapsulation layer;

[0030] Figure 8 Schematic diagram showing a partial film layer structure of the display module provided by the embodiment of the present application before encapsulation;

[0031] Figure 9 Schematic diagram showing the relationship between the height difference between different support pillars and the encapsulation cover plate deformation amount provided by the embodiment of the present application;

[0032] Figure 10 Schematic diagram showing the distribution of a support pillar provided by the embodiment of the present application.

[0033] Icons: 10 - display module; 110 - display substrate; 101 - corner area; 1101 - substrate layer; 1102 - support pillar; 120 - encapsulation cover plate; 130 - encapsulation layer; 300 - support pillar distribution area; 310 - outer periphery of the support pillar distribution area; 3101 - raised area; 20 - microcavity. Detailed implementation manners

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. Usually, the components of the embodiments of this application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of this application that is claimed, but merely represents selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of this application without making creative efforts fall within the scope of protection of this application.

[0036] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0037] In the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is customarily placed during use. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0038] It should be noted that, without conflict, the different features in the embodiments of this application can be combined with each other.

[0039] To facilitate the description of the specific reasons for the technical problems mentioned in the foregoing background art, the following first introduces the film layer structure of the display module. Please refer to Figure 1 and Figure 2 , Figure 1 which illustrates a partial schematic diagram of the film layer structure of the display module 10 before encapsulation. Figure 2The figure exemplifies a partial film layer structure schematic diagram of the display module 10 after packaging. Among them, the display module 10 may include a display substrate 110, a packaging cover plate 120, and a packaging layer 130. The packaging layer 130 is located on one side of the packaging cover plate 120 and extends along the edge of the packaging cover plate 120 near the edge of the packaging cover plate 120. The display substrate 110 may include a substrate layer 1101 and support pillars 1102 provided on the substrate layer 1101. The support pillars 1102 may be provided between adjacent light-emitting pixels and are used to support the packaging cover plate 120 to prevent the packaging cover plate 120 from pressing and damaging the light-emitting pixels. After the display substrate 110 and the packaging cover plate 120 are hermetically packaged through the packaging layer 130, a quasi-vacuum environment (atmospheric pressure is very small) is formed in the internal space between the display substrate 110 and the packaging cover plate 120. Under the action of the external atmospheric pressure and the self-gravity of the packaging cover plate 120, the packaging cover plate 120 may undergo microscopic deformation to form a concave surface with a certain curvature similar to a bathtub. In this way, many microcavities 20 are formed in the internal space between the display substrate 110 and the packaging cover plate 120. In the direction perpendicular to the light-emitting surface of the display module 10, there are significant differences in the size d of the microcavities 20 at different positions. When ambient light is incident on the display module 10, there are differences in the optical paths of the reflected light on the upper and lower surfaces of different microcavities 20, and they will interfere with each other after reflection, resulting in the appearance of Newton's rings in the display module 10 and affecting the display effect. Among them, the greater the curvature of the concave surface, the greater the deformation of the corresponding packaging cover plate 120, the greater the difference in the size d between different microcavities 20, and the more obvious the Newton's rings phenomenon.

[0040] The inventors further studied and found that, please refer to again Figure 2 , the deformation amount of the packaging cover plate 120 is relatively large in its edge region, and the corner region 101 is more likely to deform compared to other edge regions. By disassembling the display module 10, the inventors found that, please refer to Figure 3 , in the corner region 101, the distance H1 between the outer periphery 310 of the support pillar distribution area and the packaging layer 130 is larger than the distance between the outer periphery 310 of the support pillar distribution area and the packaging layer in other regions (the distance H2 between the outer periphery 310 of the support pillar distribution area and the packaging layer 130 at the wide side position of the display module 10, or the distance H3 between the outer periphery 310 of the support pillar distribution area and the packaging layer 130 at the long side position of the display module 10). As a result, the packaging cover plate 120 in the corner region 101 is not effectively supported, causing the deformation of the packaging cover plate 120 to extend from the edge of the packaging cover plate 120 towards the central region of the packaging cover plate 120, resulting in a relatively large deformation of the entire packaging cover plate 120. Furthermore, the difference in the size d between different microcavities 20 is relatively large, which will make the Newton's rings phenomenon more serious.

[0041] To solve the above technical problems, the inventor has innovatively designed the following technical solutions. The specific implementation solutions of the present application will be described in detail below with reference to the accompanying drawings.

[0042] It should be noted that the defects existing in the above prior art solutions are all the results obtained by the inventor through practice and careful research. Therefore, the process of discovering the above technical problems and the solutions proposed by the embodiments of the present application below for the above problems should be the contributions made by the inventor to the present application during the invention creation process, rather than being understood as the technical content known to those skilled in the art.

[0043] To better describe the technical solutions provided by the embodiments of the present application, please refer to Figure 4 and Figure 5 , Figure 4 shows a schematic diagram of the film layer structure of the display module provided by the embodiment of the present application; Figure 5 shows one of the schematic diagrams of the positional relationship between the support pillar distribution area 300 and the encapsulation layer 130 provided by the embodiment of the present application. Specifically, in this embodiment, the display module 10 may include a display substrate 110, an encapsulation cover plate 120, and an encapsulation layer 130. The encapsulation layer 130 is close to the edges of the display substrate 110 and the encapsulation cover plate 120 and is located between the display substrate 110 and the encapsulation cover plate 120. The display substrate 110 may include a substrate layer 1101 and support pillars 1102 provided on the substrate layer 1101. The support pillars 1102 are distributed in the area surrounded by the encapsulation layer 130.

[0044] In this embodiment, the support pillars 1102 are distributed within the area enclosed by the encapsulation layer 130 to form a support pillar distribution area 300. The outer periphery 310 of the support pillar distribution area extends along the extension direction of the encapsulation layer 130 on the encapsulation cover plate 120. The distance H1 between the outer periphery 310 of the support pillar distribution area and the encapsulation layer 130 at the corner area 101 of the display module is not greater than the distance H2 between the outer periphery 310 of the support pillar distribution area and the encapsulation layer 130 at the wide side position of the display module 10 and the distance H3 between the outer periphery 310 of the support pillar distribution area and the encapsulation layer 130 at the long side position of the display module 10. Here, the distance from the encapsulation layer 130 can be the distance to the side of the support pillar distribution area 300 facing the encapsulation layer 130, and the distances H2 and H3 can be the same or different. The long side and the wide side of the display module 10 are adjacent. The long side of the display module 10 corresponds to the longer one of the edges of the display module 10, and the wide side of the display module 10 corresponds to the shorter one of the edges of the display module 10. When the lengths of two adjacent edges of the display module 10 are the same, one of the edges can be taken as the long side of the display module 10, and the other edge can be taken as the wide side of the display module 10. The corner area 101 is formed by the intersection of the long side and the wide side of the display module 10. Exemplarily, the corner area 101 can be an arc-shaped area.

[0045] In the above structure, after the encapsulation cover plate 120 and the display substrate 110 are encapsulated, the support pillars 1102 provided in the display substrate 110 can effectively support the encapsulation cover plate 120, especially effectively support the encapsulation cover plate 120 corresponding to the corner area 101 of the display module 10, thereby reducing the deformation amount of the encapsulation cover plate 120 in the corner area 101 and reducing the deformation of the encapsulation cover plate 120 at the corner area 101. In this way, the deformation curvature of the entire encapsulation cover plate 120 can be reduced, thereby reducing the size difference of different microcavities 20 formed between the display substrate 110 and the encapsulation cover plate 120, so as to achieve the purpose of weakening the Newton's ring phenomenon and ensuring the display effect.

[0046] In a possible implementation manner of the embodiment of the present application, the outer periphery 310 of the support pillar distribution area is parallel to the extension direction of the encapsulation layer 130 on the encapsulation cover plate 120, that is, at any position, the distance between the outer periphery 310 of the support pillar distribution area and the encapsulation layer 130 is equal (distance H1 = distance H2 = distance H3). With such a design, after the encapsulation cover plate 120 and the display substrate 110 are encapsulated, the area of the encapsulation cover plate 120 close to the encapsulation layer 130 can be effectively supported, thereby reducing the deformation amount of the encapsulation cover plate 120.

[0047] Please refer to Figure 6 , Figure 6Schematic diagram II showing the positional relationship between the support column distribution area 300 and the encapsulation layer 130 provided by an embodiment of the present application is illustrated. In another possible implementation manner of the embodiment of the present application, the outer periphery 310 of the support column distribution area bulges towards the encapsulation layer 130 in the corner area 101 of the display module 10. The formed bulge can make the distance H1 between the outer periphery 310 of the support column distribution area and the encapsulation layer 130 at the corner area 101 of the display module 10 less than the distance H2 between the outer periphery 310 of the support column distribution area and the encapsulation layer 130 at the wide side position of the display module 10 and the distance H3 between the outer periphery 310 of the support column distribution area and the encapsulation layer 130 at the long side position of the display module 10. In this way, the support area of the encapsulation cover plate 120 at the corner area 101 can be increased, so that the deformation amount of the encapsulation cover plate 120 at the corner area 101 can be well controlled, and thus the overall deformation amount of the encapsulation cover plate 120 can be reduced.

[0048] The inventors further found through research that during encapsulation, generally, the method of laser sintering the encapsulation material layer is adopted. By controlling the laser to move uniformly along the extension direction of the encapsulation material layer, there will be a problem of uneven heating of the encapsulation material during the sintering process. For example, when the starting position point is heated for 2 seconds, the encapsulation material near this position will be affected by the laser at the starting position point, and its starting temperature for sintering will be higher than that of the starting position point. In the case of the same laser action time, there will be a difference in the height of the finally formed encapsulation layer 130. In addition, when the encapsulation layer 130 is made on the encapsulation cover plate 120, the uneven coating of the encapsulation material will also cause a difference in the height of the finally formed encapsulation layer 130. To solve the above problems, please refer to Figure 7 , Figure 7 Schematic diagram III showing the positional relationship between the support column distribution area 300 and the encapsulation layer 130 provided by an embodiment of the present application is illustrated. Further, in the embodiment of the present application, the outer periphery 310 of the support column distribution area includes a convex area 3101 facing the encapsulation layer 130 in the area of the long side or the wide side of the display module 10. The support columns 1102 in the convex area 3101 can effectively support the encapsulation cover plate 120 at the edge position to offset the pressure difference of the encapsulation cover plate 120 caused by the height difference of the encapsulation layer 130, ensuring that the overall deformation amount of the entire encapsulation cover plate 120 after encapsulation will not be too large. Preferably, the convex area 3101 can be located at the quarter and / or half area of the long side or the wide side of the display module 10, where the quarter area and the half area refer to the areas whose centers are located at the quarter and half positions respectively.

[0049] The inventor found through a large number of experiments that when the distance between the outer periphery 310 of the support pillar distribution area and the encapsulation layer 130 is 0.9 mm to 1.7 mm at the corner area 101 of the display module 10, the deformation amount of the encapsulation cover plate 120 in the corner area 101 is relatively small, and the curvature of the entire encapsulation cover plate 120 deforming and bending is also relatively small. Preferably, the distance between the outer periphery 310 of the support pillar distribution area and the encapsulation layer 130 is 0.9 mm to 1.3 mm.

[0050] Furthermore, in the embodiment of the present application, in the direction perpendicular to the light-emitting surface of the display module 10, the support pillars 1102 are compressed. Please refer to Figure 8 , when the display substrate 110 and the encapsulation cover plate 120 are aligned during encapsulation, the compressed height of the support pillars 1102 is the difference between the distance H4 between the encapsulation layer 130 and the display substrate 110 and the distance H5 between the support pillars 1102 and the encapsulation cover plate 120. Among them, the difference between the distance H4 and the distance H5 is defined as the height by which the support pillars 1102 protrude above the encapsulation layer 130 before encapsulation.

[0051] In the embodiment of the present application, the material of the encapsulation layer 130 may include glass powder, filler, and adhesive. Among them, the mass percentage of the glass powder is 20% to 80%, the mass percentage of the filler is 5% to 40%, the mass percentage of the adhesive is 10% to 40%, and the material of the support pillars is polyimide. The glass powder may include V2O5, P2O5, Fe2O3, TeO2, BaO, SiO2, B2O3, PbO, and SnO. The filler may include ceramic powder or refractory oxide, and the adhesive may include diethylene glycol monobutyl ether.

[0052] Please refer to Figure 9 , Figure 9 illustrates the relationship diagram between the height difference between different support pillars 1102 and the encapsulation layer 130 and the deformation amount of the encapsulation cover plate 120. Among them, a negative height difference indicates that the height of the support pillars 1102 is lower than the height of the encapsulation layer 130, and a positive height difference indicates that the height of the support pillars 1102 is higher than the height of the encapsulation layer 130; the deformation amount of the encapsulation cover plate refers to the maximum deformation amount of the encapsulation cover plate 120, and the larger the value, the more severe the deformation; the path - deformation amount of the encapsulation cover plate represents the deformation amount on the connection path of the two maximum deformation positions in the encapsulation cover plate 120. The larger the path - deformation amount of the encapsulation cover plate, the more severe the deformation, and the greater the deformation curvature between the two deformation positions. In this embodiment, the path - deformation amount of the encapsulation cover plate is used to quantify the deformation of the encapsulation cover plate 120. As Figure 9As shown, when the height difference is between 0 and 1.59 um, the deformation of the path-encapsulation cover plate remains within 25 nm, while the deformation of the path-encapsulation cover plate corresponding to other height differences is relatively large. Specifically, when the height difference is 0.44 um, the deformation of the path-encapsulation cover plate of the encapsulation cover plate 120 is 3.1 nm. When the height difference is between 0.44 um and 0.6 um, the deformation of the path-encapsulation cover plate is relatively small (for example, within 18 nm).

[0053] The inventors also found that the deformation pressure on the encapsulation cover plate 120 in the area close to the encapsulation layer 130 is greater than that in the area far from the encapsulation layer 130. Please refer to Figure 10 , Figure 10 which exemplifies a distribution schematic diagram of the support columns 1102. In the embodiments of the present application, the height of the support columns 1102 increases from the center of the support column distribution area 300 to the outer periphery 310 (the arrow direction in the figure) of the support column distribution area, so as to arrange higher support columns 1102 in the area with greater deformation pressure. By arranging support columns 1102 with different heights according to different deformation pressures, the encapsulation cover plate 120 can be effectively supported, the deformation amount of the entire encapsulation cover plate 120 can be reduced, thereby weakening the Newton's ring effect and improving the display effect.

[0054] The embodiments of the present application also provide an electronic device, which may include the display module 10 described in the previous embodiments. The electronic device adopting the display module 10 has good display performance and can improve the user experience.

[0055] In the display module provided by the embodiments of the present application, the outer periphery of the support column distribution area extends along the extension direction of the encapsulation layer on the encapsulation cover plate. The distance between the outer periphery of the support column distribution area and the encapsulation layer at the corner area of the display module is not greater than the distance between the outer periphery of the support column distribution area and the encapsulation layer at the long side and wide side positions of the display module. Such a design can effectively support the encapsulation cover plate through the support columns provided in the display substrate after encapsulating the encapsulation cover plate and the display substrate, especially effectively support the encapsulation cover plate corresponding to the corner area of the display module, reduce the deformation of the encapsulation cover plate at the corner area, so as to reduce the deformation curvature of the entire encapsulation cover plate, and further reduce the size difference of different microcavities formed between the display substrate and the encapsulation cover plate, making the optical path difference of the light reflected by different microcavities smaller, achieving the purpose of weakening the Newton's ring phenomenon and improving the display effect.

[0056] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A display module, characterized in that, The display module includes a display substrate, a packaging cover plate, and a packaging layer; The packaging layer is close to the edges of the display substrate and the packaging cover plate and is located between the display substrate and the packaging cover plate; The display substrate includes a substrate layer and support pillars provided on the substrate layer, and the support pillars are distributed in the area enclosed by the packaging layer; The outer periphery of the support pillar distribution area extends along the extending direction of the packaging layer on the packaging cover plate; the distance between the outer periphery of the support pillar distribution area and the packaging layer at the corner area of the display module is not greater than the distance between the outer periphery of the support pillar distribution area and the packaging layer at the long side and wide side positions of the display module, where the distance from the packaging layer is the distance from the side of the packaging layer facing the support pillar distribution area.

2. The display module according to claim 1, wherein The outer periphery of the support pillar distribution area is parallel to the extending direction of the packaging layer on the packaging cover plate.

3. The display module according to claim 1, wherein, The outer periphery of the support pillar distribution area bulges towards the packaging layer at the corner area of the display module.

4. The display module according to claim 3, wherein The outer periphery of the support pillar distribution area includes a convex area facing the packaging layer at the area of the long side or wide side of the display module.

5. The display module according to claim 4, wherein The convex area is located at the quarter and / or half area of the long side or wide side of the display module.

6. The display module according to any one of claims 2-5, characterized in that, At the corner area of the display module, the distance between the outer periphery of the support pillar distribution area and the packaging layer is 0.9 mm to 1.7 mm.

7. The display module according to claim 6, wherein The distance between the outer periphery of the support pillar distribution area and the packaging layer is 0.9 mm to 1.3 mm.

8. The display module according to claim 6, wherein In the direction perpendicular to the light-emitting surface of the display module, the support pillar is compressed, and the compression height of the support pillar is the height by which the support pillar protrudes relative to the packaging layer.

9. The display module according to claim 8, wherein The material of the packaging layer includes glass powder, filler, and adhesive, wherein the mass percentage of the glass powder is 20% to 80%, the mass percentage of the filler is 5% to 40%, and the mass percentage of the adhesive is 10% to 40%; The material of the support pillar is polyimide.

10. The display module according to claim 8, wherein, The compression height of the support pillar is 0 μm to 1.59 μm.

11. The display module according to claim 10, wherein The compression height of the support pillar is 0.44 μm to 0.6 μm.

12. The display module according to claim 6, wherein The height of the support pillar increases from the center of the support pillar distribution area to the outer periphery of the support pillar distribution area.

13. An electronic device, characterized in that, The electronic device includes the display module according to any one of claims 1-12.

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