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CN-121982969-A - Support piece, preparation method thereof, flexible display module and electronic equipment

CN121982969ACN 121982969 ACN121982969 ACN 121982969ACN-121982969-A

Abstract

The application provides a support member and a preparation method thereof, a flexible display module and electronic equipment, wherein the support member is provided with a first bending area, the support member comprises a plurality of fiber layers which are arranged in a laminated way, the plurality of fiber layers comprise a first support component, and the second support component is arranged in a lamination manner with the first support component, the first support component is used for supporting the flexible screen, and the second support component positioned in the first bending region is provided with a first bending hole penetrating through the second support component. According to the support piece provided by the application, the first bending holes are formed in the second support component, so that the support piece has an ultrathin blind groove structure, and the support piece has the advantages of bending, flatness and supportability, and the crease, the shadow, the extrusion resistance and the like of the whole machine are greatly improved.

Inventors

  • LIN ZHILONG
  • CHEN SHIFENG
  • CHEN ZHIBIN
  • DING YI

Assignees

  • OPPO广东移动通信有限公司

Dates

Publication Date
20260505
Application Date
20241030

Claims (15)

  1. 1. The utility model provides a support piece, its characterized in that, support piece has first district of buckling, support piece is including the multilayer fibrous layer of range upon range of setting, multilayer fibrous layer include first supporting component, and with the second supporting component that first supporting component range upon range of setting, first supporting component is used for supporting flexible screen, be located the second supporting component in first district of buckling has seted up run through in the first hole of buckling of second supporting component.
  2. 2. The support of claim 1, wherein the first support assembly comprises a first fiber layer and a second fiber layer, the first fiber layer is used for supporting the flexible screen, the second fiber layer is arranged between the first fiber layer and the second support assembly, a first included angle A is formed between the extending direction of the fibers in the first fiber layer and the bending axis of the support, a second included angle B is formed between the extending direction of the fibers in the second fiber layer and the bending axis of the support, and the angle A is not less than 80 degrees and not more than 100 degrees, and the angle B is not less than 0 degrees and not more than 10 degrees.
  3. 3. The support of claim 2, wherein the second support member comprises a third fibrous layer and a fourth fibrous layer, the third fibrous layer being further from the first support member than the fourth fibrous layer, wherein the direction of extension of the fibers in the third fibrous layer is the same as the direction of extension of the fibers in the first fibrous layer, and wherein the direction of extension of the fibers in the fourth fibrous layer is the same as the direction of extension of the fibers in the second fibrous layer.
  4. 4. The support of claim 3, wherein the first fibrous layer, the second fibrous layer, the third fibrous layer, and the fourth fibrous layer satisfy at least one of: The elastic modulus of the first fiber layer is smaller than that of the second fiber layer, and the elastic modulus of the third fiber layer is smaller than that of the fourth fiber layer; The first fiber layer has a lower grammage than the second fiber layer, and the third fiber layer has a lower grammage than the fourth fiber layer.
  5. 5. The support member of claim 1 wherein said support member has two second bending regions on opposite sides of said first bending region, a second bending hole is provided in a second support member located in said second bending region in a direction away from said first support member, said second bending hole extending through a portion of the fibrous layer of said second support member, and a direction of bending of said support member in said first bending region is opposite to a direction of bending of said support member in said second bending region when said support member is in a bent state.
  6. 6. The support of claim 5, wherein the support has a support surface for supporting the flexible screen and two side surfaces bent to connect opposite sides of the support surface, the first bending hole and the second bending hole satisfying at least one of: the first bending hole penetrates through the surface of the second supporting component, which is away from the supporting surface, and the two side surfaces; the second bending hole penetrates through the surface, away from the supporting surface, of the second supporting component and the two side surfaces.
  7. 7. The support of claim 5, wherein the support has a support surface for supporting the flexible screen, the first bend aperture has a first top wall proximate the support surface, the second bend aperture has a second top wall proximate the support surface, the support satisfying at least one of: The vertical distance from the supporting surface to the first top wall is 0.03mm-0.09mm; the vertical distance from the supporting surface to the second top wall is 0.06mm-0.12mm.
  8. 8. A method of making a support member having a first inflection region, the method comprising: providing a plurality of fibrous layers; laminating a part of the fiber layers in the plurality of fiber layers to obtain a first supporting component; Sequentially laminating the rest fiber layers on one side of the first support assembly to obtain a second support assembly, wherein the lamination direction of the fiber layers in the second support assembly is consistent with the lamination direction of the fiber layers in the first support assembly; Connecting the first support component with the multi-layer fiber layer in the second support component through a molding process to obtain an initial support piece; and forming a first bending hole penetrating through the second supporting component on the second supporting component in the first bending region to obtain the supporting piece.
  9. 9. The method of manufacturing according to claim 8, further comprising, after said layering a portion of said fiber layers of said plurality of fiber layers to obtain a first support assembly: The first supporting component comprises a fiber layer which is used for being close to the second supporting component, and a protective layer is formed on the surface of the fiber layer close to the second supporting component; Removing the protective layer positioned in the first bending area and exposing one fiber layer; forming an isolation layer on the exposed surface of the fiber layer; And removing the protective layer.
  10. 10. The method of claim 8, wherein the sequentially stacking the remaining fiber layers on one side of the first support assembly to obtain a second support assembly comprises: providing a fiber layer, wherein a protective layer is formed on the surface of the fiber layer; Removing the protective layer positioned in the first bending area and exposing one fiber layer; forming an isolation layer on the exposed surface of the fiber layer; removing the protective layer; Laminating one side of the fiber layer, provided with the isolation layer, on one side of the first support component; And sequentially stacking the rest fiber layers on one side of the fiber layer, which is away from the first support assembly, to obtain a second support assembly.
  11. 11. The method of claim 8, wherein the sequentially stacking the remaining fiber layers on one side of the first support assembly to obtain a second support assembly comprises: each of the remaining fiber layers comprises a first part and a second part, and the first part and the second part are arranged at intervals, so that a first hole is formed by surrounding the first part and the second part, and the first hole corresponds to the first bending area; Sequentially laminating the rest fiber layers on one side of the first supporting component to obtain a plurality of first holes which are mutually communicated, wherein the first holes form a first bending hole; Providing a filling piece, filling the filling piece in the first bending hole, and enabling the filling piece to be abutted against the hole wall of the first bending hole; forming a first bending hole in the second supporting component located in the first bending region and exposing the first supporting component, and obtaining the supporting component comprises: and removing the filling piece to form the first bending hole and exposing the first supporting component to obtain the supporting piece.
  12. 12. The method of claim 8, wherein the sequentially stacking the remaining fiber layers on one side of the first support assembly to obtain a second support assembly comprises: The rest fiber layers comprise a first fiber layer group and a second fiber layer group, each fiber layer in the first fiber layer group comprises a first part and a second part, the first part and the second part are arranged at intervals, so that a first hole is formed by surrounding the first part and the second part, and the first hole corresponds to the first bending area; Sequentially laminating fiber layers in the first fiber layer group on one side of the first support component to obtain a plurality of first holes which are mutually communicated; Providing a filling member, filling the filling member in a plurality of first holes, and enabling the filling member to be abutted against the wall of each first hole; Sequentially laminating fiber layers in the second fiber layer group on one side of the first fiber layer group, which is away from the first support component, to obtain a second support component; forming a first bending hole in the second supporting component located in the first bending region and exposing the first supporting component, and obtaining the supporting component comprises: forming a second hole in the fiber layer in the second fiber layer group corresponding to the first holes and exposing the filling piece, wherein the second hole is communicated with the first holes, and the second hole and the first hole form a first bending hole; and removing the filling piece to form the first bending hole and exposing the first supporting component to obtain the supporting piece.
  13. 13. The method of manufacturing according to claim 11 or 12, further comprising, after said providing the filler: and forming an isolation layer on the appearance surface of the filling piece.
  14. 14. A flexible display module, characterized in that the flexible display module comprises a flexible screen and a support member according to any of claims 1-7, the flexible screen has a display surface, and the first support member of the support member is arranged on the side of the flexible screen facing away from the display surface.
  15. 15. An electronic device, comprising a first housing, a second housing, a folding device, and the flexible display module according to claim 14, wherein opposite ends of the folding device are respectively connected to the first housing and the second housing, and the flexible display module is disposed on the same side of the first housing, the second housing, and the folding device.

Description

Support piece, preparation method thereof, flexible display module and electronic equipment Technical Field The application belongs to the technical field of flexible display, and particularly relates to a support piece, a preparation method of the support piece, a flexible display module and electronic equipment. Background Flexible screens are one of the important components in foldable electronic devices, and in order to improve the support performance of the flexible screen, a support is usually provided on the back of the flexible screen. How to improve the bending reliability on the premise of not affecting the bending performance of the flexible screen is a problem to be solved urgently in the current industry. Disclosure of Invention In view of this, the first aspect of the present application provides a support, the support has a first bending region, the support includes a plurality of fiber layers stacked and disposed, the plurality of fiber layers includes a first support component and a second support component stacked and disposed with the first support component, the first support component is used for supporting a flexible screen, and the second support component located in the first bending region is provided with a first bending hole penetrating through the second support component. The support member provided by the first aspect of the present application is formed by stacking a plurality of fiber layers, and compared with the support member prepared by adopting a metal material in the related art, the weight of the support member can be reduced, and the support member is lighter and thinner. Secondly, divide into the first supporting component and the second supporting component that the range upon range of setting with the multilayer fibrous layer, wherein first supporting component mainly used supports flexible screen, and one side that first supporting component deviates from flexible screen is located to the second supporting component, and the below of first supporting component is located to the second supporting component promptly. According to the application, the first bending holes penetrating through the second support component are formed at the positions, corresponding to the first bending regions, of the second support component, and the first support component is exposed, in other words, the first bending holes are formed at the surfaces, deviating from the flexible screen, of the support component, the surfaces, used for supporting the flexible screen, of the support component are not perforated, namely, the first bending holes do not penetrate through the surfaces of the upper side and the lower side of the support component, so that the bending performance of the support component is not affected, and the support component still has excellent bending performance. And, because the first supporting component does not have the trompil, consequently when flexible screen setting in support piece and buckling, the support effect and the roughness of the flexible screen of first district department of buckling, whole shadow effect is better, still can alleviate the crease. In addition, as the support is arranged below the flexible screen and the step is not provided, the extrusion resistance of the flexible screen can be improved. In a second aspect, the present application provides a method for preparing a support member having a first bending region, the method comprising: providing a plurality of fibrous layers; laminating a part of the fiber layers in the plurality of fiber layers to obtain a first supporting component; Sequentially laminating the rest fiber layers on one side of the first support assembly to obtain a second support assembly, wherein the lamination direction of the fiber layers in the second support assembly is consistent with the lamination direction of the fiber layers in the first support assembly; Connecting the first support component with the multi-layer fiber layer in the second support component through a molding process to obtain an initial support piece; and forming a first bending hole penetrating through the second supporting component on the second supporting component in the first bending region to obtain the supporting piece. The preparation method of the support piece provided by the second aspect of the application has simple process, and the bending performance of the support piece can not be influenced by forming the first bending hole only at the second support component, the support effect and the flatness of the flexible screen can be improved, the overall shadow effect and the extrusion resistance are better, and the crease can be lightened. The third aspect of the application provides a flexible display module, which comprises a flexible screen and the support piece provided by the first aspect of the application, wherein the flexible screen is provided with a display surface, and the first support component of the support piece is