Support plate, display device and electronic device

Abstract

The present invention discloses a support plate, a display device and an electronic device, wherein the support plate comprises a flat area, a bending area and a pattern area, wherein the flat areas are multiple and include a first flat area and a second flat area spaced apart along a first direction, the bending area is connected between the first flat area and the second flat area, and the bending area can be bent along the first direction, the pattern area at least covers the bending area, and the pattern area is provided with multiple groups of openings arranged along the first direction, each opening group includes multiple openings spaced apart along the second direction, at least two of the multiple openings in the portion of the pattern area covering the bending area are formed as oblique holes, the central axis of the oblique hole intersects with the thickness direction of the bending area at a non-zero angle, wherein the second direction is perpendicular to the first direction, the central axis of the oblique hole is located in a first reference plane, and the first reference plane is parallel to a plane formed by the intersection of the thickness direction of the bending area and the first direction. The support plate according to the present invention has good structural performance and bending performance.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a support plate, a display device and an electronic device. Background Art

[0002] In a foldable mobile phone, a reinforcing steel sheet is used to support the display panel of the foldable mobile phone, and the bending performance of the reinforcing steel sheet will affect the performance of the foldable mobile phone. In the related art, the bending performance of the reinforcing steel sheet is poor. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a support plate having good structural performance and bending performance.

[0004] The present invention also provides a display device having the supporting plate.

[0005] The present invention also provides an electronic device having the above display device.

[0006] The support plate according to the first aspect of the present invention comprises: a flat area, which is multiple and includes a first flat area and a second flat area spaced apart along a first direction; a bending area, which is connected between the first flat area and the second flat area, and can be bent along the first direction; a pattern area, which at least covers the bending area, and is provided with a plurality of groups of openings arranged along the first direction, each of the opening groups includes a plurality of openings spaced apart along the second direction, and at least two of the plurality of openings in the portion of the pattern area covering the bending area are formed as inclined holes, and the central axis of the inclined hole intersects the thickness direction of the bending area at a non-zero angle, wherein the second direction is perpendicular to the first direction, and the central axis of the inclined hole is located in a first reference plane, and the first reference plane is parallel to a plane formed by the intersection of the thickness direction of the bending area and the first direction.

[0007] According to the support plate of the present invention, inclined holes are provided in the bending area of ​​the support plate to improve the stress distribution of the support plate when bending and optimize the overall performance of the support plate, thereby enhancing the bending performance of the support plate by changing the structure of the support plate.

[0008] In some embodiments, the plurality of openings in at least one group of the plurality of groups of openings in the portion of the pattern area covering the bending area are formed as the oblique holes.

[0009] In some embodiments, the angle α between the central axis of the inclined hole and the thickness direction of the bending zone satisfies: 0°<α≤45°.

[0010] In some embodiments, the plurality of openings in the bending zone are all formed as through holes; or, the plurality of openings in the bending zone are all formed as blind holes; or, at least one of the plurality of openings in the bending zone is formed as a through hole, and at least one of the plurality of openings is formed as a blind hole.

[0011] In some embodiments, the pattern area includes a first pattern area and a second pattern area, and the first pattern area and the second pattern area are each provided with multiple groups of the opening groups, the first pattern area covers the bending area, and the second pattern area covers a portion of at least one of the first flat area and the second flat area.

[0012] In some embodiments, the area of ​​the pattern region does not exceed 1 / 3 of the sum of the areas of the flat region and the bending region.

[0013] In some embodiments, the plurality of openings in the pattern area are all formed as the inclined holes; or, at least two of the plurality of openings in the portion of the pattern area covering the bending area are formed as straight holes, and the central axis of the straight holes is parallel to the thickness direction of the bending area.

[0014] In some embodiments, the bending zone has a center line, the center line extends along the second direction, and the plurality of groups of opening groups are symmetrically arranged about the center line.

[0015] In some embodiments, the bending zone includes a central bending zone and a transition bending zone arranged along the first direction, the transition bending zone is multiple and includes a first transition bending zone and a second transition bending zone, the first transition bending zone and the second transition bending zone are respectively arranged on both sides of the central bending zone in the first direction, and are symmetrically arranged about the central bending zone, the first transition bending zone is connected between the central bending zone and the first flat zone, the second transition bending zone is connected between the central bending zone and the second flat zone, and multiple groups of the opening groups are provided in the central bending zone and the transition bending zone, and the multiple openings in the multiple groups of the opening groups in the transition bending zone are all formed as the inclined holes.

[0016] In some embodiments, the openings in the central bending zone are all formed as straight holes, and the central axes of the straight holes are parallel to the thickness direction of the bending zone; or, the openings in the central bending zone are all formed as inclined holes, and the central axes of the inclined holes in the central bending zone are all located in a second reference plane, and the second reference plane is parallel to a plane formed by the intersection of the thickness direction of the bending zone and the second direction.

[0017] In some embodiments, the inclined holes in the first transition bending zone include a first inclined hole and a second inclined hole, and the central axis of the first inclined hole is not parallel to the central axis of the second inclined hole. The inclined holes in the second transition bending zone include a third inclined hole and a fourth inclined hole, and the central axis of the third inclined hole is not parallel to the central axis of the fourth inclined hole.

[0018] In some embodiments, in the first direction, the second inclined hole is located between the first inclined hole and the central bending zone, and in the first direction, the fourth inclined hole is located between the third inclined hole and the central bending zone, wherein the angle α1 between the central axis of the first inclined hole and the thickness direction of the bending zone is smaller than the angle α2 between the central axis of the second inclined hole and the thickness direction of the bending zone, and the angle α3 between the central axis of the third inclined hole and the thickness direction of the bending zone is smaller than the angle α4 between the central axis of the fourth inclined hole and the thickness direction of the bending zone; or, the angle α1 between the central axis of the first inclined hole and the thickness direction of the bending zone is larger than the angle α2 between the central axis of the second inclined hole and the thickness direction of the bending zone, and the angle α3 between the central axis of the third inclined hole and the thickness direction of the bending zone is larger than the angle α4 between the central axis of the fourth inclined hole and the thickness direction of the bending zone.

[0019] In some embodiments, the first transition bending zone includes a first transition zone and a second transition zone arranged along a first direction, an end of the first transition zone away from the second transition zone is connected to the first flat zone, an end of the second transition zone away from the first transition zone is connected to the central bending zone, the inclined holes in the first transition zone are all the first inclined holes, and the inclined holes in the second transition zone are all the second inclined holes, the second transition bending zone includes a third transition zone and a fourth transition zone arranged along the first direction, an end of the third transition zone away from the fourth transition zone is connected to the second flat zone, an end of the fourth transition zone away from the third transition zone is connected to the central bending zone, the inclined holes in the third transition zone are all the third inclined holes, and the inclined holes in the fourth transition zone are all the fourth inclined holes.

[0020] A display device according to a second aspect of the present invention comprises a display panel and a support plate according to the first aspect of the present invention, wherein the support plate supports a back side of the display panel.

[0021] According to the display device of the present invention, by providing the support plate of the first aspect, it is easy to ensure that the display device has good bending performance.

[0022] In some embodiments, a back film and a heat dissipation film layer are provided between the display panel and the support plate, the back film is located between the display panel and the heat dissipation film layer, a touch module, a filter module and a cover plate are provided on the front side of the display panel, the touch module and the filter module are both located between the display panel and the cover plate, and the touch module is located between the filter module and the display panel.

[0023] An electronic device according to a third aspect of the present invention comprises the display device according to the second aspect of the present invention.

[0024] According to the electronic device of the present invention, by adopting the above-mentioned display device, the bending performance of the electronic device is improved.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of a support plate according to an embodiment of the present invention;

[0027] Figure 2 yes Figure 1 Another schematic diagram of the support plate shown in ;

[0028] Figure 3 yes Figure 2 The enlarged view of the O part circled in the middle;

[0029] Figure 4 yes Figure 3 A schematic diagram of the first inclined hole shown in ;

[0030] Figure 5 yes Figure 3 A schematic diagram of the second oblique hole shown in ;

[0031] Figure 6 yes Figure 3 A schematic diagram of the third inclined hole shown in ;

[0032] Figure 7 yes Figure 3 A schematic diagram of the fourth oblique hole shown in ;

[0033] Figure 8 yes Figure 3 Schematic diagram of the straight hole shown in;

[0034] Fig. 9 is a schematic diagram of a support plate according to another embodiment of the present invention;

[0035] Fig.10 is a schematic diagram of an inclined hole according to another embodiment of the present invention;

[0036] Fig.11 is a schematic diagram of a straight hole according to another embodiment of the present invention;

[0037] Fig.12 is a schematic diagram of a support plate according to yet another embodiment of the present invention;

[0038] Fig.13 A cross-sectional view of a display device according to an embodiment of the present invention.

[0039] Reference numerals:

[0040] Display device 200,

[0041] Display panel 101, back film 102, heat dissipation film layer 103, touch module 104, filter module 105, cover plate 106,

[0042] The first sub-cover plate 1061, the second sub-cover plate 1062, the UTG 1063,

[0043] Support plate 100, first reference plane A1, second reference plane A2,

[0044] Flat area 1, first flat area 11, second flat area 12,

[0045] Bending zone 2, center line 2a,

[0046] Central bending zone 21, transition bending zone 22,

[0047] The first transition bending zone 221, the first transition zone 221a, the second transition zone 221b,

[0048] The second transition bending zone 222, the third transition zone 222a, the fourth transition zone 222b,

[0049] Pattern area 3, first pattern area 3a, second pattern area 3b,

[0050] Opening group 3A, opening 30,

[0051] The inclined hole 30a, the central axis L1 of the inclined hole,

[0052] The first inclined hole 30c, the second inclined hole 30d, the third inclined hole 30e, the fourth inclined hole 30f,

[0053] Straight hole 30b, central axis L2 of the straight hole. DETAILED DESCRIPTION

[0054] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0055] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific processes and examples of materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0056] The support plate 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings. The support plate 100 can be used in a folding device such as a folding mobile phone to support a display panel, but is not limited thereto. For example, the support plate 100 can also be used for a rolled display panel, etc. In the following description of the present application, the support plate 100 is applied to a flexible display panel as an example for explanation.

[0057] like Figure 1 and Figure 2 As shown, the support plate 100 includes a flat area 1, a bending area 2 and a pattern area 3, there are multiple flat areas 1, and the multiple flat areas 1 include a first flat area 11 and a second flat area 12 spaced apart along a first direction (for example, the AA' direction of Figure 1), the bending area 2 is connected between the first flat area 11 and the second flat area 12, and the bending area 2 can be bent along the first direction, then the bending area 2 can be unfolded or bent, the pattern area 3 at least covers the bending area 2, then the area of ​​the pattern area 3 is greater than or equal to the area of ​​the bending area 2.

[0058] like Figure 1 As shown, the pattern area 3 is provided with a plurality of groups of openings 3A arranged along a first direction, each opening group 3A includes a plurality of openings 30 arranged at intervals along a second direction (e.g., the BB' direction in FIG. 1 ), at least two of the plurality of openings 30 in the portion of the pattern area 3 covering the bending area 2 are formed as oblique holes 30a, and the central axis L1 of the oblique hole 30a is aligned with the thickness direction (e.g., the thickness direction) of the bending area 2. Figure 2 The second direction is perpendicular to the first direction, and the central axis L1 of the inclined hole 30a is located on the first reference plane A1 (for example, Figure 2 In the paper plane where the structure shown in FIG. 1 is located, the first reference plane A1 is parallel to the plane formed by the intersection of the thickness direction of the bending zone 2 and the first direction, that is, the thickness direction of the bending zone 2 and the first direction intersect to define the first reference plane, and the first reference plane A1 is parallel to the first reference plane. Therefore, the setting of the inclined hole 30a can better match the bending of the support plate 100 along the first direction to improve the bending performance of the bending zone 2 in the first direction.

[0059] Obviously, multiple groups of openings 3A are provided in the bending zone 2, or in other words, multiple groups of openings 3A are provided on the portion of the support plate 100 located in the bending zone 2, and at least two of the multiple openings 30 in the bending zone 2 are formed as oblique holes 30a. In the description of the present invention, "multiple" means two or more.

[0060] During the bending process, the shape of the bending zone 2 can be changed; for example, Figure 1 and Figure 2 In the example, the bending zone 2 has a flattened state, and the bending zone 2 and the flat zone 1 can be located in the same plane. The support plate 100 can be formed into a flat plate structure. The bending zone 2 also has a bent state, and the bending zone 2 and the flat zone 1 are not located in the same plane. The portion of the support plate 100 located in the bending zone 2 can extend along a curve in the first direction.

[0061] Among them, the central axis L1 of the inclined hole 30a intersects with the thickness direction of the bending zone 2 at a non-zero angle, and the central axis L1 of the inclined hole 30a is located on the first reference plane A1. It can be understood that, in the first reference plane A1, the central axis L1 of the inclined hole 30a intersects with the thickness direction of the bending zone 2 at the position of the inclined hole 30a at a non-zero angle. The thickness direction of the bending zone 2 can be understood as the normal direction of the thickness center plane of the support position located in the bending zone 2. When the thickness center plane of the bending zone 2 is a plane (for example, the bending zone 2 is in a flattened state), the thickness direction of the bending zone 2 is unique. When the thickness center plane of the bendable section is a curved surface (for example, the bending zone 2 is in a bent state), the thickness direction at a certain position of the bending zone 2 can be understood as the normal direction of the thickness center plane at the above position.

[0062] The inventor of the present application simulated the structures of setting straight holes and inclined holes on the support plate, respectively, and compared the mechanical properties of the two structures when bending, and concluded that setting inclined holes on the support plate can improve the bending performance of the support plate.

[0063] For example, two support plates of 130mm*160mm*0.03mm are established, and a straight hole is drawn on one support plate, for example, in the middle of the support plate, and the central axis of the straight hole is parallel to the thickness direction of the support plate; an inclined hole is drawn in the middle of the other support plate, for example, and the central axis of the inclined hole intersects the thickness direction of the support plate at an angle of 15°. The central axis of the inclined hole is located in the longitudinal section of the support plate, that is, the central axis of the inclined hole is located in the plane where the support plate undergoes bending deformation; the two ends of the two support plates are fixed, and a uniformly distributed load of 100MPa is applied above the support plates to obtain the stress distribution of the two support plates. The comparison results show that for the support plate with straight holes, the maximum stress occurs at the fixed positions at both ends, and for the support plate with inclined holes, the maximum stress occurs at the edge of the inclined hole, not on the flat surface of the support plate, and the maximum stress values ​​of the two support plates are not much different; therefore, an inclined hole 30a is set in the bending area 2 of the support plate 100. Due to the mechanical properties of the inclined hole 30a, the maximum stress of the support plate 100 is concentrated on the edge of the inclined hole 30a rather than the flat area 1 of the support plate 100. Therefore, when the support plate 100 is used to support the flexible display panel, the influence of the optical adhesive (OCA2) layer between the support plate 100 and the flexible display panel when the support plate 100 is bent can be effectively reduced, the force applied to the optical adhesive when bent can be reduced, and the risk of peeling can be reduced, thereby ensuring the connection reliability between the support plate 100 and the flexible display panel.

[0064] Compared with some technologies, a Pattern structure is set on the support plate, and the Pattern structure is a straight hole, and the central axis of the straight hole is parallel to the thickness of the pattern area of ​​the support plate to ensure the bending performance of the support plate; in the present application, at least two of the multiple openings 30 in the bending zone 2 are set as inclined holes 30a, so that the central axis L1 of the inclined hole 30a intersects with the thickness direction of the bending zone 2 at a non-zero angle, which can further optimize the structural performance of the support plate 100 and further improve the bending performance of the support plate 100.

[0065] Therefore, according to the support plate 100 of the embodiment of the present invention, by setting the inclined hole 30a in the bending area 2 of the support plate 100, the central axis of the inclined hole 30a is located in the first reference plane A1, so as to improve the stress distribution of the support plate 100 when it is bent in the first direction, optimize the overall performance of the support plate 100, and enhance the bending performance of the support plate 100 by changing the structure of the support plate 100.

[0066] Optionally, the opening 30 may be formed as a circular hole, an elliptical hole, a polygonal hole, or the like.

[0067] In some embodiments, Figure 1 and Figure 3As shown, at least one of the plurality of openings 30 in the plurality of opening groups 3A in the portion of the pattern area 3 covering the bending area 2 is formed as an inclined hole 30a, so that at least one opening group 3A is formed as an inclined hole 30a group, and the inclined hole 30a group includes a plurality of inclined holes 30a spaced apart along the second direction. Thus, the arrangement of the inclined holes 30a matches the bending direction of the bending area 2, so as to improve the bending performance of the bending area 2 in the first direction, thereby improving the bending performance of the support plate 100.

[0068] In some embodiments, Figure 4 As shown, the angle α between the central axis L1 of the inclined hole 30a and the thickness direction of the bending zone 2 satisfies 0°<α≤45°. For example, α can be 10°, or 15°, or 20°, or 30°, or 45°, etc., which enriches the design diversity of the support plate 100 to better meet actual needs.

[0069] It can be understood that the angles between the central axis L1 of the multiple inclined holes 30a in the bending zone 2 and the thickness direction of the bending zone 2 can be equal or not completely equal, which includes the following situations: 1. The angles between the central axis L1 of the multiple inclined holes 30a and the thickness direction of the bending zone 2 are equal; 2. The angles between the central axis L1 of any two of the multiple inclined holes 30a and the thickness direction of the bending zone 2 are not equal, that is, the angles between the central axis L1 of the multiple inclined holes 30a and the thickness direction of the bending zone 2 are completely different; 3. The angles between the central axis L1 of at least two of the multiple inclined holes 30a and the thickness direction of the bending zone 2 are equal, and are not equal to the angles between the central axis L1 of the remaining inclined holes 30a and the thickness direction of the bending zone 2; in other words, the central axis L1 of the multiple inclined holes 30a in the bending zone 2 are parallel to each other, or the central axis L1 of at least one of the multiple inclined holes 30a is not parallel to the central axis L1 of the remaining inclined holes 30a. Thus, it is further convenient for the diversified design of the support plate 100.

[0070] Furthermore, the angle α between the central axis L1 of the inclined hole 30a and the thickness direction of the bending zone 2 satisfies 0°<α≤30°, so that the angle between the central axis L1 of the inclined hole 30a and the thickness direction of the bending zone 2 is appropriately reduced, which facilitates the processing of the inclined hole 30a while ensuring the bending performance of the support plate 100.

[0071] In some embodiments, Figure 3-Figure 8 As shown, the plurality of openings 30 in the bending zone 2 are formed as through holes, and each opening 30 in the bending zone 2 penetrates the surfaces on both sides of the thickness direction of the support plate 100 in the thickness direction. Of course, the present invention is not limited thereto. In other embodiments, such as Fig.10 and Fig.11As shown, the multiple openings 30 in the bending zone 2 are all formed as blind holes, then in the thickness direction of the bending zone 2, each opening 30 in the bending zone 2 does not penetrate the support plate 100; in some further embodiments, at least one of the multiple openings 30 in the bending zone 2 is formed as a through hole, and at least one of the multiple openings 30 is formed as a blind hole, then in the thickness direction of the bending zone 2, at least one of the multiple openings 30 penetrates the support plate 100, and at least one of the multiple openings 30 does not penetrate the support plate 100.

[0072] Therefore, the multiple openings 30 in the bending area 2 are flexibly arranged, so that the structure of the support plate 100 has diversity, so as to better meet actual needs.

[0073] In some embodiments, Fig.12 As shown, the pattern area 3 includes a first pattern area 3a and a second pattern area 3b, and multiple groups of opening groups 3A are provided in the first pattern area 3a and the second pattern area 3b. The first pattern area 3a covers the bending area 2, and the second pattern area 3b covers a part of the flat area 1. Then the pattern area 3 covers the entire bending area 2, and the pattern area 3 covers a part of at least one of the first flat area 11 and the second flat area 12. For example, the pattern area 3 covers a part of the first flat area 11, or the pattern area 3 covers a part of the second flat area 12, or the pattern area 3 covers a part of the first flat area 11 and a part of the second flat area 12, so that multiple groups of opening groups 30A are provided in the bending area 2, and multiple groups of opening groups 3A are also provided in a part of at least one of the first flat area 11 and the second flat area 12. In this way, the stress distribution of the flat area 1 can be improved, and the structural performance of the flat area 1 can be guaranteed.

[0074] In some embodiments, the area of ​​the pattern region 3 does not exceed 1 / 3 of the sum of the areas of the flat region 1 and the bending region 2, thereby ensuring the rigidity of the support plate 100 and preventing the pattern region 3 from being too large and causing mold imprint.

[0075] In some embodiments, the plurality of openings 30 in the pattern area 3 are all formed as oblique holes 30a, and at this time, the central axes L1 of the plurality of oblique holes 30a may be parallel or non-parallel. It is understandable that when the pattern area 3 only covers the bending area 2, the plurality of openings 30 in the bending area 2 are all formed as oblique holes 30a; when the pattern area 3 covers the bending area 2 and a part of the flat area 1, the plurality of openings 30 in the bending area 2 and the plurality of openings 30 in the flat area 1 are all formed as oblique holes 30a.

[0076] Of course, the present invention is not limited to this. In other embodiments, Figure 3As shown, at least two of the multiple openings 30 in the portion of the pattern area 3 covering the bending area 2 are formed as straight holes 30b, then at least two of the multiple openings 30 in the bending area 2 are formed as straight holes 30b, and the central axis L2 of the straight hole 30b is parallel to the thickness direction of the bending area 2, then the angle between the central axis L2 of the straight hole 30b and the thickness direction of the bending area 2 is 0°.

[0077] Therefore, the structure of the plurality of openings 30 in the pattern area 3 is flexibly arranged, thereby enriching the structural diversity of the support plate 100 .

[0078] In some embodiments, Figure 1 As shown, the bending area 2 has a center line 2a, the center line 2a extends along the second direction, and the multiple groups of openings 3A are symmetrically arranged about the center line 2a, and the oblique holes 30a in the multiple openings 30 are also symmetrically arranged about the center line 2a, thereby evenly improving the bending performance of the support plate 100. Of course, the multiple groups of openings 3A in the pattern area 3 can also be arranged asymmetrically about the center line 2a.

[0079] In some embodiments, Figure 1 As shown, the bending zone 2 includes a central bending zone 21 and a transition bending zone 22 arranged along a first direction, there are multiple transition bending zones 22, and the multiple transition bending zones 22 include a first transition bending zone 221 and a second transition bending zone 222, the first transition bending zone 221 and the second transition bending zone 222 are respectively arranged on both sides of the central bending zone 21 in the first direction, and the first transition bending zone 221 and the second transition bending zone 222 are symmetrically arranged about the central bending zone 21, then the first transition bending zone 221 and the second transition bending zone 222 can be symmetrically arranged about the center line 2a of the bending zone 2, the first transition bending zone 221 is connected between the central bending zone 21 and the first flat zone 11, and the second transition bending zone 222 is connected between the central bending zone 21 and the second flat zone 12, so that the support plate 100 can be better adapted to a flexible display panel such as a "water drop-type" flexible display screen, so that the support plate 100 plays a good supporting role for the flexible display panel. Multiple groups of openings 3A are provided in the central bending zone 21 and the transition bending zone 22, and multiple openings 30 of the multiple groups of openings 3A in the transition bending zone 22 are formed as oblique holes 30a, which effectively improves the bending performance of the transition bending zone 22, ensures the bending transition between the central bending zone 21 and the flat zone 1, and facilitates meeting the differentiated requirements of the central bending zone 21 and the transition bending zone 22 for bending performance. Among them, the central axes L1 of the multiple oblique holes 30a in the transition bending zone 22 can be parallel or non-parallel.

[0080] In some embodiments, Figure 1 and Figure 3As shown, multiple groups of opening groups 3A are provided in the central bending zone 21 and the transition bending zone 22, and the multiple openings 30 of the multiple groups of opening groups 3A in the transition bending zone 22 are all formed as inclined holes 30a, and the bending zone 2 has a center line 2a extending along the second direction. During the bending process of the bending zone 2, the center line 2a can be used as the bending axis of the bending zone 2, and the multiple groups of opening groups 3A in the pattern zone 3 are symmetrically arranged about the center line 2a. Then, the multiple groups of opening groups 3A in the central bending zone 21 are symmetrically arranged about the center line 2a, and the multiple inclined holes 30a in the transition bending zone 22 are symmetrically arranged about the center line 2a, so that during the bending process of the bending zone 2, the support plate 100 remains symmetrical about the center line 2a, thereby ensuring the regularity of the bending shape of the support plate 100 to better match the flexible display panel.

[0081] It can be understood that when the openings 30 in the bending transition zone are all formed as inclined holes 30a, the openings 30 in the central bending zone 21 are all formed as straight holes 30b, or the openings 30 in the central bending zone 21 are all formed as inclined holes 30a, or a part of the openings 30 in the central bending zone 21 are formed as straight holes 30b and the other part are formed as inclined holes 30a.

[0082] In some embodiments, Figure 2 and Figure 3 As shown, the central axis L1 of the inclined hole 30a in the first transition bending zone 221 and the second transition bending zone 222 are both located in the first reference plane A1, and the bending zone 2 has a center line 2a extending along the second direction. During the bending process of the bending zone 2, the center line 2a can be used as the bending axis of the bending zone 2, and the first transition bending zone 221 and the second transition bending zone 222 are arranged opposite to each other about the center line 2a, and the inclined hole 30a in the first transition bending zone 221 and the inclined hole 30a in the second transition bending zone 222 are symmetrically arranged about the center line 2a.

[0083] Therefore, when the bending zone 2 is in the unfolded state, in the thickness direction of the support plate 100, the center axis L1 of the inclined hole 30a in the first transition bending zone 221 and the center axis L1 of the inclined hole 30a in the second transition bending zone 222 can extend in a direction close to each other or in a direction away from each other, so as to ensure a balanced improvement in the bending performance of the support plate 100. At the same time, the setting of the inclined hole 30a can better match the bending along the first direction. For example, in the direction from one side of the thickness of the support plate 100 toward the other side of the thickness of the support plate 100, the central axis L1 of the inclined hole 30a in the first transition bending zone 221 extends toward the direction close to the central bending zone 21, and the central axis L1 of the inclined hole 30a in the second transition bending zone 222 extends toward the direction close to the central bending zone 21; or, in the direction from the above-mentioned thickness side of the support plate 100 toward the above-mentioned thickness side of the support plate 100, the central axis L1 of the inclined hole 30a in the first transition bending zone 221 extends toward the direction away from the central bending zone 21, and the central axis L1 of the inclined hole 30a in the second transition bending zone 222 extends toward the direction away from the central bending zone 21.

[0084] In some embodiments, Figure 3 As shown, the opening 30 in the central bending zone 21 is formed as a straight hole 30b, and the central axis L2 of the straight hole 30b is parallel to the thickness direction of the bending zone 2, which can meet the bending performance of the central bending zone 21. Of course, the present invention is not limited to this. In other embodiments, the openings 30 in the central bending zone 21 are all formed as oblique holes 30a, and the central axes L1 of the oblique holes 30a in the central bending zone 21 are all located in the second reference plane A2, and the second reference plane A2 is parallel to the plane formed by the intersection of the thickness direction of the bending zone 2 and the second direction. Then, the thickness direction of the bending zone 2 and the second direction intersect to define a second reference plane, and the second reference plane A2 is parallel to the second reference plane, which facilitates the symmetrical arrangement of the openings 30 in the central bending zone 21 about the center line 2a of the bending zone 2, so as to evenly improve the bending performance of the central bending zone 21 in the first direction.

[0085] In some embodiments, Figure 3 and Fig. 9 As shown, the inclined hole 30a in the first transition bending zone 221 includes a first inclined hole 30c and a second inclined hole 30d, and the central axis L1 of the first inclined hole 30c is not parallel to the central axis L1 of the second inclined hole 30d, so as to meet the different requirements for bending performance at different positions in the first transition bending zone 221; the inclined hole 30a in the second transition bending zone 222 includes a third inclined hole 30e and a fourth inclined hole 30f, and the central axis L1 of the third inclined hole 30e is not parallel to the central axis L1 of the fourth inclined hole 30f, so as to meet the different requirements for bending performance at different positions in the second transition bending zone 222.

[0086] It can be understood that when the multiple groups of opening groups 3A in the bending zone 2 are symmetrically arranged about the center line 2a, the first inclined hole 30c can be symmetrically arranged with the third inclined hole 30e about the center line 2a, and the second inclined hole 30d can be symmetrically arranged with the fourth inclined hole 30f about the center line 2a.

[0087] In some embodiments, Fig. 9 As shown, in the first direction, the angle between the central axis of the inclined hole 30a in the first transition bending zone 221 and the thickness direction of the bending zone 2 increases along the direction approaching the central bending zone 21; similarly, the angle between the central axis of the inclined hole 30a in the second transition bending zone 222 and the thickness direction of the bending zone 2 increases along the direction approaching the central bending zone 21.

[0088] like Fig. 9 As shown, in the first direction, the second inclined hole 30d is located between the first inclined hole 30c and the central bending zone 21, then in the first direction, the distance between the second inclined hole 30d and the central bending zone 21 is closer than the distance between the first inclined hole 30c and the central bending zone 21, and the angle α1 between the central axis L1 of the first inclined hole 30c and the thickness direction of the bending zone 2 is smaller than the angle α2 between the central axis L1 of the second inclined hole 30d and the thickness direction of the bending zone 2; in the first direction, the fourth inclined hole 30f is located between the third inclined hole 30e and the central bending zone 21, then in the first direction, the distance between the fourth inclined hole 30f and the central bending zone 21 is closer than the distance between the third inclined hole 30e and the central bending zone 21, and the angle α3 between the central axis L1 of the third inclined hole 30e and the thickness direction of the bending zone 2 is smaller than the angle α4 between the central axis L1 of the fourth inclined hole 30f and the thickness direction of the bending zone 2. Therefore, it is easy to realize the gradual setting of the inclination angle of the inclined hole 30a in the transition bending zone 22 of the support plate 100, which is beneficial to realize the balanced improvement of the bending performance of the support plate 100, thereby further optimizing the bending performance of the support plate 100.

[0089] In other embodiments, Figure 3 As shown, in the first direction, the angle between the central axis of the inclined hole 30a in the first transition bending zone 221 and the thickness direction of the bending zone 2 decreases along the direction approaching the central bending zone 21; similarly, the angle between the central axis of the inclined hole 30a in the second transition bending zone 222 and the thickness direction of the bending zone 2 decreases along the direction approaching the central bending zone 21.

[0090] like Figure 3As shown, in the first direction, the second inclined hole 30d is located between the first inclined hole 30c and the central bending zone 21, then in the first direction, the distance between the second inclined hole 30d and the central bending zone 21 is closer than the distance between the first inclined hole 30c and the central bending zone 21, and the angle α1 between the central axis L1 of the first inclined hole 30c and the thickness direction of the bending zone 2 is greater than the angle α2 between the central axis L1 of the second inclined hole 30d and the thickness direction of the bending zone 2; in the first direction, the fourth inclined hole 30f is located between the third inclined hole 30e and the central bending zone 21, then in the first direction, the distance between the fourth inclined hole 30f and the central bending zone 21 is closer than the distance between the third inclined hole 30e and the central bending zone 21, and the angle α3 between the central axis L1 of the third inclined hole 30e and the thickness direction of the bending zone 2 is greater than the angle α4 between the central axis L1 of the fourth inclined hole 30f and the thickness direction of the bending zone 2. Therefore, it is also convenient to realize the gradual setting of the inclination angle of the inclined hole 30 a in the transition bending zone 22 of the support plate 100 , thereby further optimizing the bending performance of the support plate 100 .

[0091] In some embodiments, Figure 3 and Fig. 9 As shown, the first transition bending zone 221 includes a first transition zone 221a and a second transition zone 221b arranged along the first direction, the end of the first transition zone 221a away from the second transition zone 221b is connected to the first flat zone 11, and the end of the second transition zone 221b away from the first transition zone 221a is connected to the central bending zone 21, so the first transition zone 221a is connected between the first flat zone 11 and the second transition zone 221b, and the second transition zone 221b is connected between the first transition zone 221a and the central bending zone 21. Among them, the inclined holes 30a in the first transition zone 221a are all first inclined holes 30c, and the inclined holes 30a in the second transition zone 221b are all second inclined holes 30d. For example, in Figure 1-Figure 3 and Fig. 9 In the example, the first oblique holes 30c in the first transition zone 221a are arranged in multiple rows and columns in the first direction and the second direction, and the second oblique holes 30d in the second transition zone 221b are arranged in multiple rows and columns in the first direction and the second direction.

[0092] The second transition bending zone 222 includes a third transition zone 222a and a fourth transition zone 222b arranged along the first direction, the end of the third transition zone 222a away from the fourth transition zone 222b is connected to the second flat zone 12, and the end of the fourth transition zone 222b away from the third transition zone 222a is connected to the central bending zone 21, so the third transition zone 222a is connected between the second flat zone 12 and the fourth transition zone 222b, and the fourth transition zone 222b is connected between the third transition zone 222a and the central bending zone 21. Among them, the inclined holes 30a in the third transition zone 222a are all third inclined holes 30e, and the inclined holes 30a in the fourth transition zone 222b are all fourth inclined holes 30f. For example, in Figure 1-Figure 3 and Fig. 9 In the example, the third oblique holes 30e in the third transition zone 222a are arranged in multiple rows and columns in the first direction and the second direction, and the fourth oblique holes 30f in the fourth transition zone 222b are arranged in multiple rows and columns in the first direction and the second direction. Thus, while ensuring the optimization of the bending performance of the support plate 100, it is helpful to simplify the structure of the support plate 100 and facilitate processing.

[0093] For example, in Fig. 9 In the example, the angle α1 between the central axis L1 of the first inclined hole 30c and the thickness direction of the bending zone 2 is 10°, the angle α2 between the central axis L1 of the second inclined hole 30d and the thickness direction of the bending zone 2 is 15°, the angle α3 between the central axis L1 of the third inclined hole 30e and the thickness direction of the bending zone 2 is 10°, and the angle α4 between the central axis L1 of the fourth transition zone 222b and the thickness direction of the bending zone 2 is 15°. Of course, the angle settings of α1, α2, α3 and α4 are not limited thereto, for example, α1, α2, α3 and α4 can be any value within the range of 0° to 30° (including 30°), as long as α1<α2, α3<α4 are satisfied.

[0094] For example, in Figure 3-Figure 7 In the example, the angle α1 between the central axis L1 of the first inclined hole 30c and the thickness direction of the bending zone 2 is 15°, the angle α2 between the central axis L1 of the second inclined hole 30d and the thickness direction of the bending zone 2 is 10°, the angle α3 between the central axis L1 of the third inclined hole 30e and the thickness direction of the bending zone 2 is 15°, and the angle α4 between the central axis L1 of the fourth transition zone 222b and the thickness direction of the bending zone 2 is 10°. Of course, the angle settings of α1, α2, α3 and α4 are not limited thereto, for example, α1, α2, α3 and α4 can be any value within the range of 0° to 30° (including 30°), as long as α1>α2, α3>α4 are satisfied.

[0095] In some embodiments, the support plate 100 is a stainless steel plate, such as SUS, and the support plate 100 has relatively good hardness and rigidity, and can provide good overall support and rigidity supplement for the flexible display panel, playing a reinforcing role. Of course, the support plate 100 can also be made of other materials.

[0096] The display device 200 according to the second embodiment of the present invention comprises a display panel 101 and a support plate 100 according to the first embodiment of the present invention, wherein the support plate 100 is supported on the back side of the display panel 101. The "back side" can be understood as the side of the display panel 101 facing away from the user.

[0097] In some embodiments, Fig.13 As shown, the display panel 101 is provided with a back film 102 (or BF) and a heat dissipation film layer 103 (such as foam) between the support plate 100, the back film 102 is located between the display panel 101 and the heat dissipation film layer 103, the front side of the display panel 101 is provided with a touch module 104 (such as FMLOC), a filter module 105 (such as POL) and a cover plate 106, the touch module 104 and the filter module 105 are both located between the display panel 101 and the cover plate 106, and the touch module 104 is located between the filter module 105 and the display panel 101. Thus, the reliability of the display device 200 is effectively guaranteed.

[0098] For example, the cover plate 106 is connected to the filter module 105 through optical glue, and the cover plate 106 includes a first sub-cover plate 1061, a second sub-cover plate 1062 and UTG1063. UTG1063 is located between the first sub-cover plate 1061 and the second sub-cover plate 1062, and UTG1063 is respectively connected to the first sub-cover plate 1061 and the second sub-cover plate 1062 through optical glue.

[0099] The display device 200 according to the embodiment of the present invention adopts the above-mentioned support plate 100, so as to ensure that the display device 200 has good bending performance.

[0100] The electronic device according to the embodiment of the third aspect of the present invention comprises the display device 200 according to the embodiment of the second aspect of the present invention.

[0101] The electronic device according to the embodiment of the present invention adopts the above-mentioned display device 200, so as to improve the bending performance of the electronic device.

[0102] Optionally, the electronic device is a foldable mobile phone, a foldable computer, etc.

[0103] Other structures and operations of the electronic device according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0104] Reference below Figure 1-Figure 8 The support plate 100 according to the embodiment of the present invention is described in detail with a specific embodiment. It is worth noting that the following description is only an exemplary description and is not a specific limitation of the present invention.

[0105] like Figure 1-Figure 3 As shown, the support plate 100 includes a flat area 1, a bending area 2, and a pattern area 3. The flat area 1 is two and includes a first flat area 11 and a second flat area 12 arranged at intervals along the first direction. The bending area 2 includes a central bending area 21, a first transition bending area 221 and a second transition bending area 222 arranged along the first direction. The first transition bending area 221 and the second transition bending area 222 are respectively arranged on both sides of the central bending area 21 in the first direction, and are symmetrically arranged about the central bending area 21. The first transition bending area 221 is connected between the central bending area 21 and the first flat area 11, and the second transition bending area 222 is connected between the central bending area 21 and the second flat area 12; the pattern area 3 only covers the entire bending area 2, and a plurality of opening groups 3A arranged along the first direction are provided in the pattern area 3, and each opening group 3A includes a plurality of openings 30 arranged at intervals along the second direction, then the central bending area 21, the first transition bending area 221 and the second transition bending area 222 are each provided with a plurality of openings 30. The second direction is perpendicular to the first direction.

[0106] like Figure 3 As shown, the multiple openings 30 in the first transition bending zone 221 and the multiple openings 30 in the second transition bending zone 222 are all formed as oblique holes 30a, and the oblique holes 30a in the first transition bending zone 221 and the oblique holes 30a in the second transition bending zone 222 are symmetrically arranged about the center line 2a extending along the second direction of the bending zone 2, and the center axis L1 of the oblique hole 30a in the first transition bending zone 221 and the center axis L1 of the oblique hole 30a in the second transition bending zone 222 are both located in the first reference plane A1; the multiple openings 30 in the central bending zone 21 are all formed as straight holes 30b. Among them, the center axis L1 of the oblique hole 30a intersects with the thickness direction of the bending zone 2 at a non-zero angle, the center axis L2 of the straight hole 30b is parallel to the thickness direction of the bending zone 2, and the first reference plane A1 is parallel to the plane formed by the intersection of the thickness direction of the bending zone 2 and the first direction.

[0107] like Figure 3As shown, the first transition bending zone 221 includes a first transition zone 221a and a second transition zone 221b arranged along the first direction, the end of the first transition zone 221a away from the second transition zone 221b is connected to the first flat zone 11, and the end of the second transition zone 221b away from the first transition zone 221a is connected to the central bending zone 21; the second transition bending zone 222 includes a third transition zone 222a and a fourth transition zone 222b arranged along the first direction, the end of the third transition zone 222a away from the fourth transition zone 222b is connected to the second flat zone 12, and the end of the fourth transition zone 222b away from the third transition zone 222a is connected to the central bending zone 21.

[0108] The inclined hole 30a in the first transition bending zone 221 includes a first inclined hole 30c and a second inclined hole 30d, the first inclined hole 30c is formed in the first transition zone 221a, and the second inclined hole 30d is formed in the second transition zone 221b; the inclined hole 30a in the second transition bending zone 222 includes a third inclined hole 30e and a fourth inclined hole 30f, the third inclined hole 30e is formed in the third transition zone 222a, and the fourth inclined hole 30f is formed in the fourth transition zone 222b. Among them, the first inclined hole 30c and the third inclined hole 30e are symmetrically arranged about the center line 2a, the second inclined hole 30d and the fourth inclined hole 30d are symmetrically arranged about the center line 2a, and the angle α1 between the central axis L1 of the first inclined hole 30c and the thickness direction of the bending zone 2 and the angle α3 between the central axis L1 of the third inclined hole 30e and the thickness direction of the bending zone 2 are both 15°, the angle α2 between the central axis L1 of the second inclined hole 30d and the thickness direction of the bending zone 2 and the angle α4 between the central axis L1 of the fourth inclined hole 30f and the thickness direction of the bending zone 2 are both 10°.

[0109] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by terms such as “center”, “thickness”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial” and “circumferential” are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0110] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0111] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0112] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0113] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A support plate, characterized in that: include: A plurality of flat areas, the flat areas including a first flat area and a second flat area spaced apart along a first direction; A bending area, wherein the bending area is connected between the first flat area and the second flat area, and the bending area can be bent along a first direction; a pattern area, the pattern area at least covers the bending area, a plurality of groups of openings arranged along the first direction are provided in the pattern area, each of the opening groups includes a plurality of openings arranged at intervals along the second direction, at least two of the plurality of openings in the portion of the pattern area covering the bending area are formed as inclined holes, the central axis of the inclined hole intersects the thickness direction of the bending area at a non-zero angle, wherein the second direction is perpendicular to the first direction, the central axis of the inclined hole is located in a first reference plane, and the first reference plane is parallel to a plane formed by the intersection of the thickness direction of the bending area and the first direction; The pattern area includes a first pattern area and a second pattern area, wherein the first pattern area and the second pattern area are both provided with a plurality of groups of the opening groups, the first pattern area covers the bending area, and the second pattern area covers a portion of at least one of the first flat area and the second flat area; The plurality of openings in the second pattern area are all formed as oblique holes.

2. The support plate according to claim 1, characterized in that: The plurality of openings in at least one group of the plurality of opening groups in the portion of the pattern area covering the bending area are formed as the oblique holes.

3. The support plate according to claim 1, characterized in that: An angle α between a central axis of the inclined hole and a thickness direction of the bending zone satisfies: 0°<α≤45°.

4. The support plate according to claim 1, characterized in that: The plurality of openings in the bending zone are all formed as through holes; or, The plurality of openings in the bending zone are all formed as blind holes; or, At least one of the plurality of openings in the bending zone is formed as a through hole, and at least one of the plurality of openings is formed as a blind hole.

5. The support plate according to claim 1, characterized in that: The area of ​​the pattern region does not exceed 1 / 3 of the sum of the areas of the flat region and the bending region.

6. The support plate according to claim 1, characterized in that: The plurality of openings in the pattern area are all formed as the oblique holes; or, At least two of the plurality of openings in the portion of the pattern area covering the bending area are formed as straight holes, and central axes of the straight holes are parallel to a thickness direction of the bending area.

7. The support plate according to claim 6, characterized in that: The bending area has a center line, the center line extends along the second direction, and the plurality of opening groups are symmetrically arranged about the center line.

8. The support plate according to claim 6 or 7, characterized in that: The bending zone includes a central bending zone and a transition bending zone arranged along the first direction, the transition bending zone is multiple and includes a first transition bending zone and a second transition bending zone, the first transition bending zone and the second transition bending zone are respectively arranged on both sides of the central bending zone in the first direction, and are symmetrically arranged about the central bending zone, the first transition bending zone is connected between the central bending zone and the first flat zone, the second transition bending zone is connected between the central bending zone and the second flat zone, a plurality of groups of opening groups are provided in the central bending zone and the transition bending zone, and the plurality of openings in the plurality of groups of opening groups in the transition bending zone are all formed as the inclined holes.

9. The support plate according to claim 8, characterized in that: The openings in the central bending zone are all formed as straight holes, and the central axis of the straight holes is parallel to the thickness direction of the bending zone; or, The openings in the central bending zone are all formed as the inclined holes, and the central axes of the inclined holes in the central bending zone are all located in a second reference plane, and the second reference plane is parallel to a plane formed by the intersection of the thickness direction of the bending zone and the second direction.

10. The support plate according to claim 8, characterized in that: The inclined holes in the first transition bending zone include a first inclined hole and a second inclined hole, and the central axis of the first inclined hole is not parallel to the central axis of the second inclined hole. The inclined holes in the second transition bending zone include a third inclined hole and a fourth inclined hole, and a central axis of the third inclined hole is not parallel to a central axis of the fourth inclined hole.

11. The support plate according to claim 10, characterized in that: In the first direction, the second inclined hole is located between the first inclined hole and the central bending area, and in the first direction, the fourth inclined hole is located between the third inclined hole and the central bending area. wherein the angle α1 between the central axis of the first inclined hole and the thickness direction of the bending zone is smaller than the angle α2 between the central axis of the second inclined hole and the thickness direction of the bending zone, and the angle α3 between the central axis of the third inclined hole and the thickness direction of the bending zone is smaller than the angle α4 between the central axis of the fourth inclined hole and the thickness direction of the bending zone; or, The angle α1 between the central axis of the first inclined hole and the thickness direction of the bending zone is greater than the angle α2 between the central axis of the second inclined hole and the thickness direction of the bending zone, and the angle α3 between the central axis of the third inclined hole and the thickness direction of the bending zone is greater than the angle α4 between the central axis of the fourth inclined hole and the thickness direction of the bending zone.

12. The support plate according to claim 11, characterized in that: The first transition bending zone includes a first transition zone and a second transition zone arranged along a first direction, an end of the first transition zone away from the second transition zone is connected to the first flat zone, an end of the second transition zone away from the first transition zone is connected to the central bending zone, the inclined holes in the first transition zone are all the first inclined holes, and the inclined holes in the second transition zone are all the second inclined holes, The second transition bending zone includes a third transition zone and a fourth transition zone arranged along the first direction, an end of the third transition zone away from the fourth transition zone is connected to the second flat zone, an end of the fourth transition zone away from the third transition zone is connected to the central bending zone, the inclined holes in the third transition zone are all third inclined holes, and the inclined holes in the fourth transition zone are all fourth inclined holes.

13. A display device, characterized in that: The device comprises a display panel and a support plate according to any one of claims 1 to 12, wherein the support plate is supported on the back side of the display panel.

14. The display device according to claim 13, characterized in that: A back film and a heat dissipation film layer are provided between the display panel and the support plate, the back film is located between the display panel and the heat dissipation film layer, a touch module, a filter module and a cover plate are provided on the front side of the display panel, the touch module and the filter module are both located between the display panel and the cover plate, and the touch module is located between the filter module and the display panel.

15. An electronic device, characterized in that: Comprising the display device according to claim 13 or 14.

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