Supporting plate and display device

Abstract

The invention discloses a supporting plate and a display device. The supporting plate is provided with a bending area and a non-bending area which are connected with each other, and comprises a plate body, and an auxiliary groove is formed in the part, located in the bending area, of the plate body; and at least part of the auxiliary structure is filled in the auxiliary groove, and the auxiliary structure and the plate body are made of different materials. The supporting plate provided by the embodiment of the invention has relatively good supporting capability.

Description

Technical Field

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

[0002] With the development of the display technology industry, people's demand for the use of display devices has increased, and flexible display devices with good flexibility have also emerged. The flexible display panel in the flexible display device can be deformed during use, so that the flexible display panel can have a bent state and a flat state. When the flexible display panel is in the bent state, the flexible display panel can have a good bending ability for easy carrying, and when the flexible display panel is in the flat state, the flexible display panel can have a good display effect.

[0003] In existing flexible display devices, a support plate used to support a flexible display panel is often grooved so that the support plate has better deformation ability to better adapt to the deformation of the flexible display panel. However, the groove structure opened on the support plate is likely to affect the supporting effect of the support plate on the flexible display panel. Summary of the invention

[0004] The embodiments of the present application provide a support plate and a display device, aiming to improve the supporting capacity of the support plate.

[0005] An embodiment of the first aspect of the present application provides a support plate, which has a bending area and a non-bending area connected to each other, and the support plate includes: a plate body, an auxiliary groove is opened on the plate body located in the bending area; an auxiliary structure, at least part of the auxiliary structure is filled in the auxiliary groove, and the material of the auxiliary structure is different from that of the plate body.

[0006] According to an implementation of the first aspect of the present application, the elastic modulus of the plate body is greater than the elastic modulus of the auxiliary structure.

[0007] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the plate body includes a metal material, and / or the material of the auxiliary structure includes an organic material.

[0008] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the plate body includes at least one of titanium alloy and stainless steel, and / or the material of the auxiliary structure includes at least one of OCA material, OCR material, TPU material and PET material.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, the elastic modulus of the auxiliary structure ranges from 1 MPa to 1000 MPa.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, the non-bending area is arranged on at least one side of the bending area in the first direction, at least one auxiliary groove is extended and formed along the second direction, and the first direction intersects with the second direction.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the auxiliary grooves include a first type of grooves extending along a first direction and a second type of grooves extending along a second direction, and both the first type of grooves and the second type of grooves are filled with auxiliary structures.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, the first type of grooves are connected to the second type of grooves.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, the number of the second type of grooves is multiple, the multiple second type of grooves are distributed at intervals in the first direction, and / or the multiple second type of grooves are distributed at intervals in the second direction.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, there are multiple first-type grooves, and the multiple first-type grooves are distributed at intervals in the first direction, and / or the multiple first-type grooves are distributed at intervals in the second direction.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, a single first-type groove is connected to at least two second-type grooves adjacent to each other in the second direction.

[0016] According to any of the aforementioned embodiments of the first aspect of the present application, the second type of grooves are arranged through the plate body.

[0017] According to any of the aforementioned embodiments of the first aspect of the present application, the dimension of the first type of groove in the thickness direction of the plate body is smaller than the thickness of the plate body, the plate body has a first plate surface and a second plate surface opposite to each other in the thickness direction of the plate body, and the first type of groove is opened on the first plate surface and / or the second plate surface.

[0018] According to any of the aforementioned embodiments of the first aspect of the present application, a dimension of the first type of groove in the thickness direction of the plate body is less than 0.5 times the thickness of the plate body.

[0019] According to any of the aforementioned embodiments of the first aspect of the present application, the auxiliary grooves include second-type grooves and third-type grooves, the second-type grooves are extended and formed along the second direction, the size of the third-type grooves in the thickness direction of the plate body is smaller than the thickness of the plate body, the plate body has a first plate surface and a second plate surface opposite to each other in the thickness direction of the plate body, the third-type grooves are opened on the first plate surface and / or the second plate surface, and a single third-type groove is connected to all the second-type grooves.

[0020] According to any of the aforementioned embodiments of the first aspect of the present application, a dimension of the third type groove in the thickness direction of the plate body is less than 0.5 times the thickness of the plate body.

[0021] According to any of the aforementioned embodiments of the first aspect of the present application, the third type of groove is arranged along the first direction passing through the bending zone, and / or the third type of groove is arranged along the second direction passing through the bending zone.

[0022] According to any of the aforementioned embodiments of the first aspect of the present application, the board body has a first board surface and a second board surface opposite to each other in the thickness direction of the board body, the first board surface is used to support the display panel, at least part of the auxiliary groove passes through the first board surface, and the surface of at least part of the auxiliary structure close to the first board surface is coplanar with the first board surface.

[0023] According to any of the aforementioned embodiments of the first aspect of the present application, at least part of the auxiliary grooves are arranged through the plate body.

[0024] According to any of the aforementioned embodiments of the first aspect of the present application, the board body has a first board surface and a second board surface opposite to each other in the thickness direction of the board body, the first board surface is used to support the display panel, at least part of the auxiliary groove is opened on the second board surface, and the size of the auxiliary groove opened on the second board surface in the thickness direction of the board body is smaller than the thickness of the board body.

[0025] According to any of the aforementioned embodiments of the first aspect of the present application, the minimum distance between the first plate surface and the bottom wall of the auxiliary groove close to the first plate surface is less than 50 μm.

[0026] According to any of the aforementioned embodiments of the first aspect of the present application, the board body has a first board surface and a second board surface opposite to each other in the thickness direction of the board body, the first board surface is used to support the display panel, and the auxiliary structure and the second board surface are spaced apart in the thickness direction of the board body.

[0027] According to any of the aforementioned embodiments of the first aspect of the present application, the support plate further includes a support member located in the bending area and attached to the second plate surface, and the auxiliary structure is spaced apart from the support member.

[0028] According to any of the aforementioned embodiments of the first aspect of the present application, the dimension of the auxiliary groove in the thickness direction of the plate body is a, the dimension of the auxiliary structure in the thickness direction of the plate body is b, and 0.5a≤b<a.

[0029] According to any of the aforementioned embodiments of the first aspect of the present application, the board body has a first board surface and a second board surface opposite to each other in the thickness direction of the board body, the first board surface is used to support the display panel, the auxiliary groove extends to the second board surface, and the auxiliary structure extends from inside the auxiliary groove to outside the auxiliary groove and covers at least part of the second board surface.

[0030] According to any of the aforementioned embodiments of the first aspect of the present application, the auxiliary structure includes a first auxiliary part and a second auxiliary part that are interconnected, the first auxiliary part is located in the auxiliary groove, and the second auxiliary part covers each auxiliary groove and at least a portion of the second plate surface.

[0031] According to any of the aforementioned embodiments of the first aspect of the present application, the dimension of the auxiliary groove in the thickness direction of the plate body is a, the dimension of the auxiliary structure in the thickness direction of the plate body is b, and a<b≤1.5a.

[0032] An embodiment of a second aspect of the present application provides a display device, comprising: a support plate of any of the above embodiments; and a display panel connected to the support plate.

[0033] According to an implementation of the second aspect of the present application, the display device further includes a glue layer disposed between the display panel and the support plate, and the elastic modulus of the auxiliary structure is greater than the elastic modulus of the glue layer.

[0034] In a support plate provided in an embodiment of the present application, the support plate includes a plate body and an auxiliary structure. The support plate can be used to support a display panel. The support plate has a bending area and a non-bending area connected to each other. The support plate located in the bending area can be used to support a portion of the display panel that can be bent, and the support plate located in the non-bending area can be used to support a portion of the display panel that cannot be bent. An auxiliary groove is provided on the plate body located in the bending area, so that the plate body located in the bending area can be more easily bent and deformed, so that when the support plate is attached to the display panel, the plate body located in the bending area can better follow the bending deformation of the display panel to produce a corresponding bending deformation.

[0035] At least part of the auxiliary structure is filled in the auxiliary groove, so that the auxiliary structure can be used to flatten the step difference of the support plate at the auxiliary groove, so that the support plate can have better continuity in the bending area, so that when the support plate and the display panel are bonded, the support plate located in the bending area can provide more continuous support to the display panel, thereby improving the supporting effect of the support plate on the display panel, making it difficult for the display panel to produce bonding marks due to the setting of the auxiliary groove.

[0036] The materials of the auxiliary structure and the plate body are different, so that by reasonably adjusting the material of the auxiliary structure, the auxiliary structure filled in the auxiliary groove can be used to balance the structural strength of the support plate in the bending area, so that the auxiliary structure filled in the auxiliary groove is not easy to interfere with the bending deformation of the support plate in the bending area, and the support plate in the bending area is not easy to have too small structural strength due to the setting of the auxiliary groove, thereby improving the supporting effect of the support plate on the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0038] Figure 1is a structural schematic diagram of a support plate in a bent state provided in an embodiment of the present application;

[0039] Figure 2 is a structural schematic diagram of a support plate in a flattened state provided in an embodiment of the present application;

[0040] Figure 3 It is a schematic diagram of a partial structure of a plate body provided in an embodiment of the present application;

[0041] Figure 4 is a partial cross-sectional view of a support plate provided in an embodiment of the present application;

[0042] Figure 5 is a partial cross-sectional view of a support plate provided in another embodiment of the present application;

[0043] Figure 6 is a partial cross-sectional view of a support plate provided in yet another embodiment of the present application;

[0044] Figure 7 is a partial cross-sectional view of a support plate provided in another embodiment of the present application;

[0045] Figure 8 is a schematic diagram of a partial structure of a plate provided by another embodiment of the present application;

[0046] Fig. 9 is a partial cross-sectional view of a support plate provided in another embodiment of the present application;

[0047] Fig.10 is a partial cross-sectional view of a support plate provided in another embodiment of the present application;

[0048] Fig.11 This is a schematic diagram of a partial structure of a plate provided in yet another embodiment of the present application;

[0049] Fig.12 is a partial cross-sectional view of a support plate provided in another embodiment of the present application;

[0050] Fig.13 is a partial cross-sectional view of a support plate provided in another embodiment of the present application;

[0051] Fig.14 is a partial cross-sectional view of a support plate provided in another embodiment of the present application;

[0052] Fig.15 It is a partial cross-sectional view of a display device provided in an embodiment of the present application.

[0053] Description of reference numerals:

[0054] 10. Support plate;

[0055] 100, plate body; 101, auxiliary groove; 101a, first type groove; 101b, second type groove; 101c, third type groove; 110, first plate surface; 120, second plate surface;

[0056] 200, auxiliary structure; 210, first auxiliary part; 220, second auxiliary part;

[0057] 300, support member;

[0058] 20. Display panel;

[0059] 30. Adhesive layer;

[0060] A1, bending area;

[0061] A2, non-bending area;

[0062] T, virtual axis;

[0063] X, first direction;

[0064] Y, second direction;

[0065] Z, thickness direction. DETAILED DESCRIPTION

[0066] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0067] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0068] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or another region, it may mean that it is directly on the other layer or another region, or that other layers or regions are included between it and the other layer or another region. Moreover, if the component is turned over, the layer or a region will be "below" or "beneath" another layer or another region.

[0069] With the development of the display technology industry, people's demand for the use of display devices has increased, and flexible display devices with good flexibility have also emerged. The flexible display panel in the flexible display device can be deformed during use, so that the flexible display panel can have a bent state and a flat state. When the flexible display panel is in the bent state, the flexible display panel can have a good bending ability for easy carrying, and when the flexible display panel is in the flat state, the flexible display panel can have a good display effect.

[0070] In existing flexible display devices, the support plate used to support the flexible display panel is often grooved so that the support plate can have a better deformation ability to better adapt to the deformation of the flexible display panel. However, the groove structure formed on the support plate is likely to affect the support effect of the support plate on the flexible display panel. For example, when the support plate supports the flexible display panel, the groove structure is likely to affect the support continuity of the support structure on the flexible display panel, and the flexible display panel is likely to produce fitting marks (such as mold printing) under the support of the support plate, which makes the support effect of the support plate on the flexible display panel poor, which is likely to affect the display effect of the display device.

[0071] In order to solve the above problems, the embodiments of the present application provide a support plate and a display device. The embodiments of the support plate and the display device will be described below in conjunction with the accompanying drawings.

[0072] Figure 1 is a structural schematic diagram of a support plate 10 in a bent state provided in an embodiment of the present application, Figure 2 is a structural schematic diagram of a support plate 10 in a flattened state provided in an embodiment of the present application. Figure 3 is a partial structural diagram of a plate body 100 provided in an embodiment of the present application. Figure 4 1 is a partial cross-sectional view of a support plate 10 provided in an embodiment of the present application. The X direction in the figure is the first direction X, the Y direction in the figure is the second direction Y, and the Z direction in the figure may be the thickness direction Z of the plate body 100. When the support plate 10 is in a flattened state, the first direction X, the second direction Y, and the thickness direction Z of the plate body 100 may intersect in pairs. For example, when the support plate 10 is in a flattened state, the first direction X, the second direction Y, and the thickness direction Z of the plate body 100 may be perpendicular in pairs.

[0073] like Figures 1 to 4As shown, an embodiment of the first aspect of the present application provides a support plate 10, the support plate 10 has a bending area A1 and a non-bending area A2 connected to each other, and the support plate 10 includes: a plate body 100, an auxiliary groove 101 is opened on the plate body 100 located in the bending area A1; an auxiliary structure 200, at least a part of the auxiliary structure 200 is filled in the auxiliary groove 101, and the material of the auxiliary structure 200 is different from that of the plate body 100.

[0074] In a support plate 10 provided in an embodiment of the present application, the support plate 10 includes a plate body 100 and an auxiliary structure 200. The support plate 10 can be used to support a display panel 20. The support plate 10 has a bending area A1 and a non-bending area A2 connected to each other. The support plate 10 located in the bending area A1 can be used to support a portion of the display panel 20 that can be bent, and the support plate 10 located in the non-bending area A2 can be used to support a portion of the display panel 20 that can not be bent. An auxiliary groove 101 is provided on the plate body 100 located in the bending area A1, so that the plate body 100 located in the bending area A1 can be easily bent and deformed, so that when the support plate 10 and the display panel 20 are attached, the plate body 100 located in the bending area A1 can better follow the bending deformation of the display panel 20 to produce a corresponding bending deformation.

[0075] like Figure 1 and Figure 2 As shown, for example, the number of non-bending areas A2 may be two, and the bending area A1 may be connected between two non-bending areas A2. The support plate 10 may have a bending state and a flattened state. In the bending state of the support plate 10, the bending area A1 may be bent and deformed, so that the non-bending areas A2 connected to the bending area A1 may be close to each other to achieve the bending of the support plate 10. In the flattened state of the support plate 10, the bending area A1 may be relatively flat, and a portion of the surface of the bending area A1 may be coplanar with a portion of the surface of the two non-bending areas A2 to achieve the flattening of the support plate 10.

[0076] Optionally, the non-bending area A2 may be arranged on at least one side of the bending area A1 in the first direction X. The bending area A1 may be bent and deformed relative to the virtual rotation axis T, the first direction X may be the radial direction of the virtual rotation axis T, and the axial direction of the virtual rotation axis T may be the second direction Y. When the bending area A1 is bent and deformed relative to the virtual rotation axis T, the non-bending area A2 connected to the bending area A1 may rotate circumferentially around the virtual rotation axis T. For example, when the number of the non-bending areas A2 is two and the bending area A1 is bent and deformed relative to the virtual rotation axis T, the non-bending areas A2 connected to the bending area A1 may rotate circumferentially around the virtual rotation axis T to get closer to each other to achieve the bending of the support plate 10, or the non-bending areas A2 connected to the bending area A1 may rotate circumferentially around the virtual rotation axis T to get away from each other to achieve the flattening of the support plate 10.

[0077] Optionally, the number of auxiliary grooves 101 may be multiple, and the multiple auxiliary grooves 101 may be spaced apart to improve the bending deformation ability of the plate body 100 in the bending area A1. For example, the multiple auxiliary grooves 101 are spaced apart in the first direction X, and / or the multiple auxiliary grooves 101 are spaced apart in the second direction Y.

[0078] Optionally, at least one auxiliary groove 101 may be extended and formed along the second direction Y, which can facilitate the bending deformation of the bending area A1 along the virtual rotation axis T, and can better improve the deformation capacity of the support plate 10.

[0079] At least part of the auxiliary structure 200 is filled in the auxiliary groove 101, so that the auxiliary structure 200 can be used to flatten the step difference of the support plate 10 at the auxiliary groove 101, so that the support plate 10 can have better continuity at the bending area A1, so that when the support plate 10 is bonded to the display panel 20, the support plate 10 located in the bending area A1 can provide more continuous support to the display panel 20, thereby enhancing the supporting effect of the support plate 10 on the display panel 20, so that the display panel 20 is not easy to produce bonding marks due to the setting of the auxiliary groove 101.

[0080] The materials of the auxiliary structure 200 and the plate body 100 are different, so that by reasonably adjusting the material of the auxiliary structure 200, the auxiliary structure 200 filled in the auxiliary groove 101 can be used to balance the structural strength of the support plate 10 at the bending area A1, so that the auxiliary structure 200 filled in the auxiliary groove 101 can not easily interfere with the bending deformation of the support plate 10 in the bending area A1, and also make it difficult for the support plate 10 at the bending area A1 to have too small structural strength due to the setting of the auxiliary groove 101, thereby improving the supporting effect of the support plate 10 on the display panel 20.

[0081] In some embodiments of the present application, there are various ways to configure the materials of the plate body 100 and the auxiliary structure 200 .

[0082] In some optional embodiments, the elastic modulus of the plate body 100 is greater than the elastic modulus of the auxiliary structure 200 .

[0083] Optionally, the material of the plate body 100 includes a metal material. Exemplarily, the material of the plate body 100 includes at least one of a titanium alloy and stainless steel.

[0084] Optionally, the material of the auxiliary structure 200 includes an organic material. Exemplarily, the material of the auxiliary structure 200 includes at least one of an OCA material, an OCR material, a TPU material, and a PET material.

[0085] Optionally, the elastic modulus of the auxiliary structure 200 ranges from 1 MPa to 1000 MPa.

[0086] In these optional embodiments, by reasonably setting the elastic modulus and material of the plate body 100, the plate body 100 can have a good structural strength, so that the plate body 100 can provide a good support for the display panel 20. By reasonably setting the elastic modulus and material of the auxiliary structure 200, the elastic modulus of the auxiliary structure 200 is not easy to be too large, so that the auxiliary structure 200 arranged in the auxiliary groove 101 is not easy to interfere with the bending deformation of the support plate 10 in the bending area A1, which can facilitate the switching of the support plate 10 between the bending state and the flattened state, and the elastic modulus of the auxiliary structure 200 is not easy to be too small, so that the support plate 10 at the bending area A1 is not easy to have too small structural strength due to the setting of the auxiliary groove 101, thereby improving the support effect of the support plate 10 on the display panel 20.

[0087] As an example, the patterning process of the plate body 100 material can be completed first to form a plate body 100 with an auxiliary groove 101, and then the material of the auxiliary structure 200 is prepared in the auxiliary groove 101 by using Pattern dispensing or coating of organic materials, and then the material of the auxiliary structure 200 in the auxiliary groove 101 is heated and cured to form the auxiliary structure 200, thereby completing the preparation of the support plate 10.

[0088] In some embodiments of the present application, there are multiple ways to position the auxiliary groove 101. Exemplarily, the board body 100 has a first board surface 110 and a second board surface 120 that are opposite to each other in the thickness direction Z of the board body 100, the first board surface 110 is used to support the display panel 20, and there are multiple ways to position the auxiliary groove 101 relative to the first board surface 110 and the second board surface 120.

[0089] In some optional embodiments, such as Figure 4 As shown, at least part of the auxiliary groove 101 is set through the plate body 100. Exemplarily, at least part of the auxiliary groove 101 can be set through the plate body 100 along the thickness direction Z of the plate body 100, so that the plate body 100 located in the bending area A1 can have better bending deformation ability.

[0090] Figure 5 is a partial cross-sectional view of a support plate 10 provided in another embodiment of the present application. Figure 6 It is a partial cross-sectional view of a support plate 10 provided in yet another embodiment of the present application.

[0091] In some optional embodiments, a size of at least a portion of the auxiliary grooves 101 in the thickness direction Z of the plate body 100 is smaller than the thickness of the plate body 100 .

[0092] Optional, such as Figure 5As shown, a portion of the auxiliary groove 101 may be arranged to penetrate the plate body 100 , and a size of another portion of the auxiliary groove 101 in the thickness direction Z of the plate body 100 is smaller than the thickness of the plate body 100 .

[0093] Optional, such as Figure 6 As shown, the dimensions of all auxiliary grooves 101 in the thickness direction Z of the plate body 100 are smaller than the thickness of the plate body 100 .

[0094] In these optional embodiments, by setting the size of at least part of the auxiliary groove 101 in the thickness direction Z of the plate body 100 to be smaller than the thickness of the plate body 100, that is, setting at least part of the auxiliary groove 101 not to penetrate the plate body 100, the structural strength of the plate body 100 can be better adjusted, so that the plate body 100 is not prone to have too low structural strength at the auxiliary groove 101, thereby better improving the supporting effect of the support plate 10 on the display panel 20.

[0095] In some optional embodiments, such as Figures 4 to 6 As shown, at least part of the auxiliary groove 101 passes through the first plate surface 110 , and at least part of the surface of the auxiliary structure 200 close to the first plate surface 110 is coplanar with the first plate surface 110 .

[0096] Optionally, the surface of at least part of the auxiliary structure 200 close to the first board surface 110 is coplanar with the first board surface 110, which may mean that the surface of at least part of the auxiliary structure 200 close to the first board surface 110 is connected to the first board surface 110, for example, the surface of at least part of the auxiliary structure 200 close to the first board surface 110 may be connected to the first board surface 110 relatively smoothly.

[0097] In these optional embodiments, when at least part of the auxiliary groove 101 passes through the first board surface 110, the surface of the auxiliary structure 200 located in the auxiliary groove 101 passing through the first board surface 110 and close to the first board surface 110 can be coplanar with the first board surface 110, so that when the support plate 10 is bonded to the display panel 20, the surface of the support plate 10 facing the display panel 20 can be relatively flat, so that the support plate 10 can support the display panel 20 more continuously, that is, the first board surface 110 of the board body 100 and the surface of the auxiliary structure 200 facing the display panel 20 and coplanar with the first board surface 110 can support the display panel 20 more continuously, thereby enhancing the supporting effect of the support plate 10 on the display panel 20, so that the display panel 20 is not easily prone to bonding marks due to the setting of the auxiliary groove 101.

[0098] Figure 7 It is a partial cross-sectional view of a support plate 10 provided in yet another embodiment of the present application.

[0099] In some optional embodiments, such as Figure 7As shown, at least part of the auxiliary grooves 101 are opened on the second plate surface 120 , and the size of the auxiliary grooves 101 opened on the second plate surface 120 in the thickness direction Z of the plate body 100 is smaller than the thickness of the plate body 100 .

[0100] In this optional embodiment, by opening at least part of the auxiliary groove 101 on the second board surface 120, and setting the auxiliary groove 101 opened on the second board surface 120 to have a size in the thickness direction Z of the board body 100 that is smaller than the thickness of the board body 100, at least part of the auxiliary groove 101 may not extend to the first board surface 110, so that the setting of the auxiliary groove 101 is not likely to cause too much impact on the flatness of the first board surface 110, that is, the first board surface 110 can have a larger size to directly fit with the display panel 20, so that the support plate 10 can support the display panel 20 more continuously, and the display panel 20 is not likely to produce fitting marks due to the setting of the auxiliary groove 101.

[0101] Optionally, when the auxiliary groove 101 is opened on the second board surface 120, and the size of the auxiliary groove 101 opened on the second board surface 120 in the thickness direction Z of the board body 100 is smaller than the thickness of the board body 100, the minimum distance between the first board surface 110 and the bottom wall of the auxiliary groove 101 close to the first board surface 110 can be less than 50μm, so that the auxiliary groove 101 is not easy to have an excessively large size, and the part of the board body 100 close to the first board surface 110 where the auxiliary groove 101 is not provided can have a better thickness, which can better improve the structural strength of the board body 100, and make it difficult for the first board surface 110 of the board body 100 to produce a depression at the auxiliary groove 101, so that the support plate 10 can support the display panel 20 more continuously, and the display panel 20 is not easy to produce fitting marks due to the setting of the auxiliary groove 101.

[0102] In some embodiments of the present application, in order to facilitate the bending of the support plate 10 and the support of the display panel 20 , there are various ways to dispose the auxiliary groove 101 .

[0103] In some optional embodiments, such as Figure 3 As shown, each auxiliary groove 101 can be formed by extending in the same direction. For example, each auxiliary groove 101 can be formed by extending in the second direction Y, which can facilitate the bending area A1 to bend and deform along the virtual axis T, and can better improve the deformation capacity of the support plate 10.

[0104] Figure 8 is a partial structural diagram of a plate body 100 provided in another embodiment of the present application. Fig. 9 is a partial cross-sectional view of a support plate 10 provided in another embodiment of the present application. Fig.10 It is a partial cross-sectional view of a support plate 10 provided in another embodiment of the present application.

[0105] In some optional embodiments, such as Figures 8 to 10 As shown, the auxiliary groove 101 includes a first type groove 101a extending along a first direction X and a second type groove 101b extending along a second direction Y. The first type groove 101a and the second type groove 101b are both filled with auxiliary structures 200 .

[0106] Optionally, there are multiple second-type grooves 101b, and the multiple second-type grooves 101b are distributed at intervals in the first direction X, and / or the multiple second-type grooves 101b are distributed at intervals in the second direction Y.

[0107] Optionally, there are multiple first-type grooves 101 a , and the multiple first-type grooves 101 a are distributed at intervals in the first direction X, and / or the multiple first-type grooves 101 a are distributed at intervals in the second direction Y.

[0108] Optionally, the second type of groove 101 b may be provided throughout the plate body 100 .

[0109] Optional, such as Fig. 9 and Fig.10 As shown, the size of the first type groove 101a in the thickness direction Z of the plate body 100 is smaller than the thickness of the plate body 100. The plate body 100 has a first plate surface 110 and a second plate surface 120 opposite to each other in the thickness direction Z of the plate body 100. The first type groove 101a is opened on the first plate surface 110 and / or the second plate surface 120.

[0110] Optionally, the dimension of the first type groove 101a in the thickness direction Z of the plate body 100 is less than 0.5 times the thickness of the plate body 100, so that the first type groove 101a is not easy to have too large a depth, and the setting of the first type groove 101a is not easy to greatly affect the structural strength of the plate body 100.

[0111] In these optional embodiments, by providing the first type of grooves 101a and the second type of grooves 101b with different extension directions, the arrangement area and density of the auxiliary grooves 101 can be better improved, and the overall bending deformation capacity of the bending area A1 can be better improved.

[0112] In some optional embodiments, the first type groove 101a may be connected to the second type groove 101b.

[0113] Optionally, a single first-type groove 101 a is connected to at least two second-type grooves 101 b adjacent to each other in the second direction Y.

[0114] In these optional embodiments, the first type of groove 101a is connected to the second type of groove 101b, so that the auxiliary structure 200 in the first type of groove 101a can be connected to the auxiliary structure 200 in the second type of groove 101b. For example, the auxiliary structure 200 in the first type of groove 101a can be integrated with the auxiliary structure 200 in the second type of groove 101b, so that when the plate body 100 in the bending area A1 is bent and deformed relative to the virtual rotation axis T, the auxiliary structure 200 in the second type of groove 101b extending along the second direction Y can be affected by the first type of groove 101a. Due to the limiting effect of the auxiliary structure 200 extending along the first direction X in the first type of groove 101a, the auxiliary structure 200 in the second type of groove 101b is not easy to be deformed too much in the first direction X, and the auxiliary structure 200 in the second type of groove 101b is not easy to be separated from the inner walls of the second type of groove 101b on both sides in the first direction X, that is, the surfaces of the auxiliary structure 200 on both sides in the first direction X and the inner walls of the second type of groove 101b are not easy to be separated, thereby improving the working stability and structural reliability of the support plate 10. For example, after the support plate 10 is bent and deformed for many times, the auxiliary structure 200 in the support plate 10 is not easy to fall off from the auxiliary groove 101, and the auxiliary structure 200 can still be relatively stably located in the auxiliary groove 101, so that the support plate 10 can have better working stability and structural reliability.

[0115] Fig.11 is a partial structural diagram of a plate body 100 provided in yet another embodiment of the present application. Fig.12 It is a partial cross-sectional view of a support plate 10 provided in another embodiment of the present application.

[0116] In some optional embodiments, such as Fig.11 and Fig.12 As shown, the auxiliary groove 101 includes a second type of groove 101b and a third type of groove 101c. The second type of groove 101b is extended along the second direction Y. The size of the third type of groove 101c in the thickness direction Z of the plate body 100 is smaller than the thickness of the plate body 100. The third type of groove 101c is opened on the first plate surface 110 and / or the second plate surface 120. A single third type of groove 101c is connected to all the second type of grooves 101b.

[0117] Optionally, the third type of groove 101c is arranged along the first direction X through the bending zone A1, and / or the third type of groove 101c is arranged along the second direction Y through the bending zone A1. Exemplarily, the third type of groove 101c is arranged along the first direction X through the bending zone A1, which may mean that the size of the third type of groove 101c in the first direction X may be equal to the size of the bending zone A1. The third type of groove 101c is arranged along the second direction Y through the bending zone A1, which may mean that the size of the third type of groove 101c in the second direction Y may be equal to the size of the bending zone A1.

[0118] Optionally, the dimension of the third type groove 101c in the thickness direction Z of the plate body 100 is less than 0.5 times the thickness of the plate body 100, so that the third type groove 101c is not easy to have too large a depth, and the setting of the third type groove 101c is not easy to greatly affect the structural strength of the plate body 100.

[0119] Optionally, the third type of groove 101c may be located on at least one side of the second groove in the thickness direction Z of the plate body 100. For example, when the third type of groove 101c is provided on the first plate surface 110, the third type of groove 101c may be located on the side of the second groove in the thickness direction Z of the plate body 100 close to the first plate surface 110. For example, when the third type of groove 101c is provided on the second plate surface 120, the third type of groove 101c may be located on the side of the second groove in the thickness direction Z of the plate body 100 close to the second plate surface 120.

[0120] In these optional embodiments, a single third-type groove 101c is provided to be connected to all the second-type grooves 101b, so that the third-type groove 101c can have a larger area, and the auxiliary structure 200 filled in the third-type groove 101c can be relatively complete and continuous, so that when the support plate 10 and the display panel 20 are bonded, the support plate 10 can provide relatively continuous support to the display panel 20, thereby improving the supporting effect of the support plate 10 on the display panel 20, so that the display panel 20 is not prone to produce bonding marks due to the setting of the auxiliary groove 101.

[0121] Fig.13 It is a partial cross-sectional view of a support plate 10 provided in another embodiment of the present application.

[0122] like Fig.13 As shown, in some optional embodiments, the auxiliary structure 200 and the second plate surface 120 are spaced apart in the thickness direction Z of the plate body 100 .

[0123] Optionally, the dimension of the auxiliary groove 101 in the thickness direction Z of the plate body 100 is a, the dimension of the auxiliary structure 200 in the thickness direction Z of the plate body 100 is b, 0.5a≤b<a, so as to realize the auxiliary structure 200 and the second plate surface 120 being spaced apart in the thickness direction Z of the plate body 100.

[0124] Optionally, the support plate 10 also includes a support member 300 located in the bending area A1 and attached to the second plate surface 120. The auxiliary structure 200 and the support member 300 are spaced apart. The support member 300 can be used to support the plate body 100 in the bending area A1, so that the plate body 100 in the bending area A1 is not easy to collapse after multiple bendings, thereby better improving the structural reliability of the support plate 10.

[0125] In these optional embodiments, the auxiliary structure 200 is spaced apart from the second plate surface 120 in the thickness direction Z of the plate body 100, so that when other devices (such as the support member 300) are arranged on the second plate surface 120 of the plate body 100, the auxiliary structure 200 is not easily contacted with the other devices attached to the second plate surface 120, so that when the other devices attached to the second plate surface 120 are subjected to corresponding bending deformation as the plate body 100 is bent in the bending area A1, the auxiliary structure 200 is not easily affected by the deformation of the other devices attached to the second plate surface 120, so that the auxiliary structure 200 can have better structural reliability.

[0126] Fig.14 It is a partial cross-sectional view of a support plate 10 provided in another embodiment of the present application.

[0127] like Fig.14 As shown, in some optional embodiments, the auxiliary structure 200 extends from inside the auxiliary groove 101 to outside the auxiliary groove 101 and covers at least a portion of the second plate surface 120 .

[0128] Optionally, the dimension of the auxiliary groove 101 in the thickness direction Z of the plate body 100 is a, and the dimension of the auxiliary structure 200 in the thickness direction Z of the plate body 100 is b, a<b≤1.5a, so that the auxiliary structure 200 extends from inside the auxiliary groove 101 to outside the auxiliary groove 101 and covers at least part of the second plate surface 120.

[0129] Optionally, the auxiliary structure 200 includes a first auxiliary portion 210 and a second auxiliary portion 220 connected to each other, the first auxiliary portion 210 is located in the auxiliary groove 101 , and the second auxiliary portion 220 covers each auxiliary groove 101 and at least a portion of the second plate surface 120 .

[0130] In these optional embodiments, an auxiliary structure 200 is provided to extend from the inside of the auxiliary groove 101 to the outside of the auxiliary groove 101 and cover at least a portion of the second plate surface 120, so that the auxiliary structure 200 extending to the second plate surface 120 can be reused as a support member 300, that is, the auxiliary structure 200 extending to the second plate surface 120 can be used to support the plate body 100 at the bending area A1, so that the plate body 100 at the bending area A1 is not easy to collapse after multiple bendings, thereby better improving the structural reliability of the support plate 10.

[0131] Fig.15 It is a partial cross-sectional view of a display device provided in an embodiment of the present application.

[0132] See also Figures 1 to 15 An embodiment of the second aspect of the present application provides a display device, comprising: a support plate 10 of any of the above-mentioned embodiments; and a display panel 20 connected to the support plate 10 .

[0133] Since the display device provided in the second aspect embodiment of the present application includes the support plate 10 of any one of the first aspect embodiments described above, the display device provided in the second aspect embodiment of the present application has the beneficial effects of the support plate 10 of any one of the first aspect embodiments described above, which will not be repeated here.

[0134] The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0135] Optionally, the display device may further include an adhesive layer 30 disposed between the display panel 20 and the support plate 10 , and the support plate 10 and the display panel 20 may be connected via the adhesive layer 30 .

[0136] In some optional embodiments, the elastic modulus of the auxiliary structure 200 is greater than the elastic modulus of the adhesive layer 30 .

[0137] For example, the elastic modulus of the adhesive layer 30 may range from 0.05 MPa to 0.1 MPa.

[0138] In this optional embodiment, by setting the elastic modulus of the auxiliary structure 200 to be greater than the elastic modulus of the adhesive layer 30, the elastic modulus of the auxiliary structure 200 is not easy to be too small, and the support plate 10 at the bending area A1 is not easy to have too low structural strength due to the setting of the auxiliary groove 101, thereby improving the supporting effect of the support plate 10 on the display panel 20.

[0139] According to the embodiments of the present application as above, these embodiments do not describe all the details in detail, nor do they limit the invention to specific embodiments. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can make good use of the present application and the modifications based on the present application. The present application is only limited by the claims and their full scope and equivalents.

Claims

1. A support plate, characterized in that: The support plate has a bending area and a non-bending area connected to each other, and the support plate includes: A plate body, wherein the plate body located in the bending area is provided with an auxiliary groove; An auxiliary structure, at least a part of which is filled in the auxiliary groove, and the auxiliary structure is made of a different material from that of the plate body.

2. The support plate according to claim 1, characterized in that: The elastic modulus of the plate body is greater than the elastic modulus of the auxiliary structure; Preferably, the material of the plate body includes a metal material, and / or the material of the auxiliary structure includes an organic material; Preferably, the material of the plate body includes at least one of titanium alloy and stainless steel, and / or the material of the auxiliary structure includes at least one of OCA material, OCR material, TPU material and PET material; Preferably, the elastic modulus of the auxiliary structure ranges from 1 MPa to 1000 MPa.

3. The support plate according to claim 1, characterized in that: The non-bending area is arranged on at least one side of the bending area in the first direction, at least one of the auxiliary grooves is extended and formed along the second direction, and the first direction intersects with the second direction.

4. The support plate according to claim 3, characterized in that: The auxiliary grooves include a first type of groove extending along the first direction and a second type of groove extending along the second direction, and the first type of grooves and the second type of grooves are both filled with the auxiliary structure; Preferably, the first type of groove is connected to the second type of groove; Preferably, there are a plurality of the second type grooves, and the plurality of the second type grooves are spaced apart in the first direction, and / or the plurality of the second type grooves are spaced apart in the second direction; Preferably, there are a plurality of the first type of grooves, and the plurality of the first type of grooves are distributed at intervals in the first direction, and / or the plurality of the first type of grooves are distributed at intervals in the second direction; Preferably, a single first-type groove is connected to at least two second-type grooves adjacent to each other in the second direction; Preferably, the second type of groove is arranged through the plate body; Preferably, the size of the first type of groove in the thickness direction of the plate body is smaller than the thickness of the plate body, the plate body has a first plate surface and a second plate surface opposite to each other in the thickness direction of the plate body, and the first type of groove is opened on the first plate surface and / or the second plate surface; Preferably, the dimension of the first type groove in the thickness direction of the plate body is less than 0.5 times the thickness of the plate body.

5. The support plate according to claim 3, characterized in that: The auxiliary grooves include second-type grooves and third-type grooves, the second-type grooves are extended and formed along the second direction, the size of the third-type grooves in the thickness direction of the plate body is smaller than the thickness of the plate body, the plate body has a first plate surface and a second plate surface opposite to each other in the thickness direction of the plate body, the third-type grooves are opened on the first plate surface and / or the second plate surface, and a single third-type groove is connected to all the second-type grooves; Preferably, the dimension of the third type groove in the thickness direction of the plate body is less than 0.5 times the thickness of the plate body; Preferably, the third type of groove is arranged along the first direction and passes through the bending zone, and / or the third type of groove is arranged along the second direction and passes through the bending zone.

6. The support plate according to claim 1, characterized in that: The board body comprises a first board surface and a second board surface which are opposite to each other in the thickness direction of the board body, the first board surface is used to support the display panel, at least part of the auxiliary grooves penetrate the first board surface, and at least part of the surface of the auxiliary structure close to the first board surface is coplanar with the first board surface; Preferably, at least part of the auxiliary grooves are arranged through the plate body.

7. The support plate according to claim 1, characterized in that: The plate body comprises a first plate surface and a second plate surface which are opposite to each other in the thickness direction of the plate body, the first plate surface is used to support the display panel, at least part of the auxiliary groove is opened in the second plate surface, and the dimension of the auxiliary groove opened in the second plate surface in the thickness direction of the plate body is smaller than the thickness of the plate body; Preferably, a minimum distance between the first plate surface and a bottom wall of the auxiliary groove close to the first plate surface is less than 50 μm.

8. The support plate according to any one of claims 1 to 7, characterized in that: The plate body comprises a first plate surface and a second plate surface which are opposite to each other in the thickness direction of the plate body, the first plate surface is used to support the display panel, and the auxiliary structure and the second plate surface are spaced apart in the thickness direction of the plate body; Preferably, the support plate further comprises a support member located in the bending area and attached to the second plate surface, and the auxiliary structure is spaced apart from the support member; Preferably, a dimension of the auxiliary groove in the thickness direction of the plate body is a, a dimension of the auxiliary structure in the thickness direction of the plate body is b, and 0.5a≤b<a.

9. The support plate according to any one of claims 1 to 7, characterized in that: The board body comprises a first board surface and a second board surface which are opposite to each other in the thickness direction of the board body, the first board surface is used to support the display panel, the auxiliary groove extends to the second board surface, and the auxiliary structure extends from the inside of the auxiliary groove to the outside of the auxiliary groove and covers at least a part of the second board surface; Preferably, the auxiliary structure comprises a first auxiliary part and a second auxiliary part connected to each other, the first auxiliary part is located in the auxiliary groove, and the second auxiliary part covers each auxiliary groove and at least a part of the second plate surface; Preferably, a dimension of the auxiliary groove in the thickness direction of the plate body is a, a dimension of the auxiliary structure in the thickness direction of the plate body is b, and a<b≤1.5a.

10. A display device, characterized in that: include: The support plate according to any one of claims 1 to 9; The display panel is connected to the support plate.

11. The display device according to claim 10, characterized in that: The display device further includes a glue layer disposed between the display panel and the support plate, and the elastic modulus of the auxiliary structure is greater than the elastic modulus of the glue layer.

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