Display screen supporting assembly, foldable display screen and electronic equipment

Abstract

The display screen supporting assembly comprises middle supporting plates and side supporting plates, the multiple middle supporting plates are arranged in the width direction of the middle supporting plates and spliced with one another, and each middle supporting plate comprises two opposite side faces; the multiple middle supporting plates are arranged between every two adjacent side supporting plates, the multiple middle supporting plates can be bent or unfolded so that the display screen supporting assembly can be in a folded state or a flattened state, and the length direction of each middle supporting plate is parallel to the folding axis of the display screen supporting assembly; when the display screen supporting assembly is in the flattened state, the side faces of every two adjacent middle supporting plates are close to each other, no gap exists between every two adjacent middle supporting plates, and therefore the front impact resisting effect of the bendable area is good. The invention further provides a foldable display screen and electronic equipment.

Description

Technical Field

[0001] The present invention relates to the field of electronic terminals, and in particular to a display screen support component, a foldable display screen having the display screen support component, and an electronic device having the foldable display screen. Background Art

[0002] At present, existing foldable electronic devices such as foldable mobile phones or foldable tablet computers can achieve large-screen display in a flattened state; the foldable electronic device can be convenient for users to carry in a folded state. The flexible display screen of the current foldable electronic device is generally supported by a bendable support sheet, that is, the support sheet is stacked on the side of the flexible display screen away from the light-emitting surface. The flexible display screen includes a bendable area. The existing support sheet generally has a hole in the area facing the bendable area to weaken the rigidity of the support sheet and optimize the bending effect of the support sheet, so that the support sheet can bend with the flexible display screen. However, since the existing support sheet is provided with an opening, when the flexible display screen is in a flattened state, the flexible display screen facing the opening of the support sheet has poor anti-frontal impact effect. If the user happens to touch a sharp object while using the foldable electronic device, the flexible display screen facing the opening of the support sheet is more likely to be stabbed and damaged by the sharp object. Summary of the invention

[0003] The embodiments of the present application provide a display screen support assembly, a foldable display screen and an electronic device to solve the above-mentioned problems.

[0004] On the one hand, a display screen support assembly is provided, comprising a middle support plate and side support plates, wherein a plurality of the middle support plates are arranged along the width direction thereof, the plurality of the middle support plates are spliced ​​with each other, and each of the middle support plates comprises two opposite side surfaces; the plurality of the middle support plates are arranged between two adjacent side support plates, the plurality of the middle support plates can be bent or unfolded so that the display screen support assembly is in a folded state or a flattened state, and the length direction of the middle support plate is parallel to the folding axis of the display screen support assembly; when the display screen support assembly is in a flattened state, the side surfaces of two adjacent middle support plates are close to each other.

[0005] On the other hand, a foldable display screen is also provided, including a display screen main body and a display screen support assembly, wherein the display screen main body includes a bendable area and non-bendable areas respectively arranged on opposite sides of the bendable area, and the bendable area can be bent or unfolded to put the display screen main body in a folded state or an unfolded state; the display screen support assembly includes a middle support plate and side support plates, a plurality of the middle support plates are arranged along the width direction thereof, a plurality of the middle support plates are spliced ​​with each other, and each of the middle support plates includes two opposite side surfaces; a plurality of the middle support plates are arranged between two adjacent side support plates, and a plurality of the side support plates are spliced ​​with each other. The middle support plate can be bent or unfolded so that the display screen support assembly is in a folded state or a flattened state, and the length direction of the middle support plate is parallel to the folding axis of the display screen support assembly; when the display screen support assembly is in a flattened state, the side surfaces of two adjacent middle support plates are close to each other; multiple middle support plates are stacked on the bendable area to support the bendable area; the two side support plates of the display screen support assembly are respectively stacked on the two non-bendable areas to support the non-bendable areas; multiple middle support plates can be bent or unfolded along with the bendable area.

[0006] On the other hand, an electronic device is provided, which includes a foldable display screen, wherein the foldable display screen includes a display screen body and a display screen support assembly, wherein the display screen body includes a bendable area and non-bendable areas respectively arranged on opposite sides of the bendable area, wherein the bendable area can be bent or unfolded so that the display screen body is in a folded state or an unfolded state; the display screen support assembly includes a middle support plate and side support plates, wherein a plurality of the middle support plates are arranged along the width direction thereof, the plurality of the middle support plates are spliced ​​with each other, and each of the middle support plates includes two opposite side surfaces; the plurality of the middle support plates are arranged between two adjacent side support plates Between the support plates, the multiple middle support plates can be bent or unfolded so that the display screen support assembly is in a folded state or a flattened state, and the length direction of the middle support plate is parallel to the folding axis of the display screen support assembly; when the display screen support assembly is in a flattened state, the side surfaces of two adjacent middle support plates are close to each other; the multiple middle support plates are stacked in the bendable area to support the bendable area; the two side support plates of the display screen support assembly are respectively stacked on the two non-bendable areas to support the non-bendable areas; the multiple middle support plates can be bent or unfolded along with the bendable area.

[0007] The display screen support assembly of the foldable display screen in the present application includes a plurality of middle support plates for supporting the bendable area of ​​the display screen body, the plurality of middle support plates are spliced ​​with each other, and the plurality of middle support plates can be folded or flattened along with the bendable area to realize the folding or flattening of the foldable display screen; when the foldable display screen is in a flattened state, the plurality of outer middle support plates are also in a flattened state, and the sides of two adjacent middle support plates are close to each other, so that there is no gap between the two adjacent middle support plates. At this time, the plurality of middle support plates have a better anti-frontal impact effect on the bendable area, and even if the user happens to touch a sharp object while using the electronic device, the sharp object is not easy to poke and damage the foldable display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0009] Figure 1 is a schematic diagram of a three-dimensional structure of an electronic device in an embodiment of the present application;

[0010] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the electronic device in FIG.

[0011] Figure 3 yes Figure 2 A schematic diagram of the three-dimensional structure of the folded shell;

[0012] Figure 4 yes Figure 3 A schematic diagram of a three-dimensional structure of the folding shell from another perspective;

[0013] Figure 5 yes Figure 2 A schematic diagram of a three-dimensional structure decomposition of a foldable display screen;

[0014] Figure 6 yes Figure 5 A schematic diagram of a three-dimensional structure decomposition of a display screen support member;

[0015] Figure 7 yes Figure 6 An enlarged view of part VII in FIG.

[0016] Figure 8 yes Figure 6 A schematic diagram of the three-dimensional structure of the display screen support sheet from another perspective;

[0017] Fig. 9 yes Figure 8 An enlarged view of section IX in FIG.

[0018] Fig.10 yes Figure 8 A schematic diagram of the front structure of the display screen support sheet;

[0019] Fig.11 yes Fig. 9 A schematic diagram of the back structure of the display screen support sheet;

[0020] Fig.12 yes Fig.11 An enlarged view of section XII in FIG.

[0021] Fig.13 yes Figure 8 A schematic diagram of a partial end surface structure of a display screen support sheet;

[0022] Fig.14 yes Figure 8 A schematic diagram of a three-dimensional structure of a display screen support sheet in a folded state;

[0023] Fig.15 yes Figure 1 A schematic diagram of a three-dimensional structure of an electronic device in a folded state;

[0024] Fig.16 yes Fig.15 A structural schematic diagram of a foldable display screen in a folded state;

[0025] Fig.17 yes Fig.16 A partial cross-sectional view of a foldable display in FIG.

[0026] Fig.18 is a partial cross-sectional view of a foldable display screen in another embodiment of the present application;

[0027] Fig.19 is a partial cross-sectional view of a foldable display screen in another embodiment of the present application;

[0028] Fig. 20 is a partial cross-sectional view of a foldable display screen in another embodiment of the present application;

[0029] Fig.21 It is a partial cross-sectional view of a foldable display screen in yet another embodiment of the present application.

[0030] Main markings:

[0031] 100. electronic device; 20. foldable housing; 22. frame; 221. front; 223. back; 2230. countersunk hole; 224. side; 225. end face; 226. mounting groove; 24. folding device; 242. supporting mechanism; 2421. middle supporting hinge; 2423. side supporting hinge; 246. folding assisting mechanism; 2461. base; 2463. rotating mechanism; 2465. connecting rod; 30. foldable display screen; 32. display screen body; 321 , bendable area; 323, bendable area; 325, non-bendable area; 35, display screen support assembly; 351, middle support plate; 3511, side; 3512, front; 3513, gap; 3514, back; 3516, side; 3517, end face; 353, side support plate; 3530, groove; 3532, outer bending area; 3532a, bending part; 3532b, straight part; 3534, straight area; 355, connecting piece; 3552, connecting edge. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Please also read Figures 1 to 7The electronic device 100 in one embodiment of the present application includes a foldable housing 20 and a foldable display screen 30 disposed on the foldable housing 20. The foldable display screen 30 can be bent or flattened along with the foldable housing 20. The foldable housing 20 includes a frame 22 and a folding device 24. The folding device 24 is located between two adjacent frames 22. The opposite sides of the folding device 24 are respectively connected to the two frames 22. The foldable display screen 30 is connected to the front of the two frames 22 and the front of the folding device 24. The two frames 22 are folded or flattened by the folding device 24 to realize the folding or unfolding of the foldable display screen 30. The foldable display screen 30 includes a display screen body 32 and a display screen supporting assembly 35. The display screen body 32 includes a bendable area 321 corresponding to the folding device 24, and non-bendable areas 325 arranged on opposite sides of the bendable area 321. The bendable area 321 can be bent or unfolded to put the display screen body 32 in a folded state or an unfolded state; specifically, when the bendable area 321 is in a bent state, the display screen body 32 is in a folded state; when the bendable area 321 is in an unfolded state, the display screen body 32 is in an unfolded state. The display screen support assembly 35 includes a strip-shaped middle support plate 351 and a rectangular side support plate 353. Multiple middle support plates 351 are arranged along the width direction thereof. Multiple middle support plates 351 are spliced ​​with each other, and each middle support plate 351 includes two opposite side surfaces 3511. Multiple middle support plates 351 are arranged between two adjacent side support plates 353. Multiple middle support plates 351 can be bent or unfolded so that the display screen support assembly 35 is in a folded state or a flattened state. The length direction of the middle support plate 351 is parallel to the folding axis of the display screen support assembly 35. When the display screen support assembly 35 is in a flattened state, the side surfaces of two adjacent middle support plates 351 are close to each other. The multiple middle support plates 351 of the display screen support assembly 35 are stacked on the bendable area 321 of the display screen body 32 to support the bendable area 321; the two side support plates 353 of the display screen support assembly 35 are respectively stacked on the two non-bendable areas 325 of the display screen body 32 to support the non-bendable areas 325; the multiple middle support plates 351 can be bent or unfolded along with the bendable area 321. The foldable display screen 30 can be, but is not limited to, a flexible display screen, a flexible touch screen, a flexible touch display screen, and other flexible components with corresponding functions, or a flexible component fixedly attached with a flexible support plate, such as a flexible display screen attached with a flexible steel plate, a flexible touch screen, and the like.

[0034] In this embodiment, the foldable housing 20 of the electronic device 100 includes a foldable device 24 and two frames 22, and the opposite sides of the foldable device 24 are respectively connected to the two frames 22; the display screen body 32 includes a bendable area 321 and two non-bendable areas 325, and the two non-bendable areas 325 are respectively located on the opposite sides of the bendable area 321; the display screen support assembly 35 includes two side support plates 353 and a plurality of middle support plates located between the two side support plates 353. Support plate 351; the front sides of the two side support plates 353 are respectively stacked on the sides of the two non-bendable areas 325 away from the light-emitting surface, the front sides of the multiple middle support plates 351 are stacked on the sides of the bendable area 321 away from the light-emitting surface, the back sides of the two side support plates 353 are respectively stacked on the front sides of the two frames 22, the back sides of the multiple middle support plates 351 are stacked on the front sides of the folding device 24, and the multiple middle support plates 351 and the bendable area 321 are bent or unfolded along with the folding device 24.

[0035] In some embodiments, the folding shell 20 of the electronic device 100 may include two or more folding devices 24 and three or more frames 22, with a folding device 24 provided between each two adjacent frames; the display screen body 32 may include two or more bendable areas 321 and three or more non-bendable areas 325, with a bendable area 321 provided between each two adjacent non-bendable areas 325; the display screen support assembly 35 may include three or more side support plates 353, with multiple middle support plates 351 provided between each two adjacent side support plates 353; three or more The front sides of the side support plates 353 are respectively stacked on the sides of three or more non-bendable areas 325 away from the light-emitting surface, the front sides of the multiple middle support plates 351 between each two adjacent side support plates 353 are stacked on the sides of the corresponding bendable areas 321 away from the light-emitting surface, the back sides of the three or more side support plates 353 are respectively stacked on the front sides of three or more frames 22, the back sides of the multiple middle support plates 351 between each two adjacent side support plates 353 are stacked on the front sides of the corresponding folding devices 24, and the multiple middle support plates 351 and the corresponding bendable areas 321 can be bent or flattened along with the corresponding folding devices 24.

[0036] In this embodiment, the front side refers to the side facing the same direction as the light-emitting side of the foldable display screen 30, and the back side refers to the side facing away from the light-emitting side of the foldable display screen 30. The front side of the foldable housing 20 has an opening, and the foldable display screen 30 is carried on the foldable housing 20 and covers the opening; that is, the front sides of the two frames 22 are respectively provided with openings, and the foldable display screen 30 is connected to the two frames 22 and covers the openings. The frame 22 and the foldable display screen 30 form a sealed receiving space, which is used to accommodate the processor, memory, circuit board and other components in the electronic device 100. The electronic device 100 involved in the embodiment of the present application may include various mobile phones, tablet computers, digital cameras and other handheld devices with display screens, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of user equipment (UE), mobile stations (MS), etc. For the convenience of description, the above-mentioned devices are collectively referred to as electronic devices.

[0037] The electronic device 100 also includes other components, which are irrelevant to the improvement of the present invention and will not be described in detail.

[0038] The foldable display screen 30 of the electronic device 100 of the present invention includes a display screen body 32 and a display screen support assembly 35. The display screen support assembly 35 includes a plurality of middle support plates 351 for supporting the bendable area 321 of the display screen body 32. The plurality of middle support plates 351 are spliced ​​with each other, and the plurality of middle support plates 351 can be folded or flattened along with the bendable area 321 to achieve the folding or flattening of the foldable display screen 30. When the bendable area 321 is in a flattened state, the plurality of middle support plates 351 are also in a flattened state, and the sides of two adjacent middle support plates 351 are close to each other, so that there is no gap between the two adjacent middle support plates 351; at this time, the plurality of middle support plates 351 have a better anti-frontal impact effect on the bendable area 321, and even if the user happens to touch a sharp object during the use of the electronic device 100, the sharp object is not easy to poke and damage the foldable display screen 30.

[0039] Optionally, the foldable display screen 30 can be bent into a U-shaped curved structure or a water drop-shaped curved structure. In this embodiment, the display screen body 32 also includes a bendable area 323 connected between each non-bendable area 325 and the bendable area 321. The bendable area 323 can be bent or unfolded. The bending or unfolding of the bendable area 321 and the bendable area 323 can put the display screen body 32 in a folded state or an unfolded state. Specifically, when the bendable area 321 and the two bendable areas 323 are both in a bent state, the bendable area 321 is bent into an arc-shaped curved structure, and the two bendable areas 323 are bent toward each other, so that the display screen body 32 is in a water drop-shaped folded state; when the bendable area 321 and the two bendable areas 323 are both in a flattened state, the display screen body 32 is in a flattened state.

[0040] In some embodiments, the bendable area 323 of the foldable display screen 30 can be omitted, and the opposite sides of the bendable area 321 are directly connected to the two non-bendable areas 325 respectively. When the bendable area 321 is in a bent state, the bendable area 321 is bent into a U-shaped bent structure, and the two non-bendable areas 325 are parallel to each other, so that the display screen body 32 is in a U-shaped folded state; when the bendable area 321 is in a flattened state, the front of the bendable area 323 and the front of the two non-bendable areas 325 are coplanar, so that the display screen body 32 is in a flattened state, and the side surfaces of the two adjacent middle support plates 351 are close to each other, so that there is no gap between the two adjacent middle support plates 351, and the multiple middle support plates 351 have a better effect of resisting frontal impact on the bendable area 321.

[0041] Optionally, the side support plate 353 includes an outer curved area 3532 close to the side of the middle support plate 351 and a straight area 3534 away from the side of the middle support plate 351, the front sides of the outer curved areas 3532 of the two side support plates 353 are respectively stacked on the back sides of the two bendable areas 323 of the display screen body 32, and the front sides of the straight areas 3534 of the two side support plates 353 are respectively stacked on the two non-bendable areas 325 of the display screen body 32, and the two outer curved areas 3532 are respectively bent or flattened along with the two bendable areas 323.

[0042] like Figure 2-Figure 4As shown, the frame 22 includes a front face 221, a back face 223, two opposite side faces 224 and two end faces 225. The folding device 24 is connected between two adjacent end faces 225 of the two frames 22. The bendable area 321 of the foldable display screen 30 is attached to the front face of the folding device 24. The two non-bending areas 323 of the foldable display screen 30 are respectively connected to the front faces 221 of the two frames 22. An installation groove 226 is provided at one end of the front face 221 of each frame 22 close to the folding device 24. The installation groove 226 passes through the front face 221 of the frame 22, and the opposite ends of the installation groove 226 extend to the opposite side faces 224 close to the frame 22. The opposite sides of the folding device 24 are respectively accommodated in the mounting grooves 226 of the two frames 22. Specifically, a plurality of countersunk holes 2230 are provided on the back side 223 of the frame 22 near the folding device 24. Each countersunk hole 2230 is connected to the mounting groove 226. The plurality of countersunk holes 2230 are arranged along the length direction of the mounting groove 226. A plurality of receiving spaces (not shown) are provided on the back side of the frame 22. The receiving spaces are used to install electronic components such as circuit boards and batteries.

[0043] The folding device 24 includes a supporting mechanism 242 and a folding assisting mechanism 246, wherein the folding assisting mechanism 246 is disposed on the back of the supporting mechanism 242. In this embodiment, there are three folding assisting mechanisms 246, wherein two folding assisting mechanisms 246 are disposed on opposite ends of the back of the supporting mechanism 242, and another folding assisting mechanism 246 is disposed in the middle of the back of the supporting mechanism 242. The support mechanism 242 includes a middle support hinge 2421 and two side support hinges 2423 connected to opposite sides of the middle support hinge 2421. The folding assisting mechanism 246 includes a base 2461, two rotating mechanisms 2463 and two connecting rods 2465. The two rotating mechanisms 2463 are rotatably connected to opposite sides of the base 2461, respectively. The two connecting rods 2465 are rotatably connected to opposite sides of the base 2461, respectively. The ends of the two connecting rods 2465 away from the base 2461 are slidably connected to the ends of the two rotating mechanisms 2463 away from the base 2461. The two side support hinges 2423 are movably connected to the two rotating mechanisms 2463 and the two first connecting rods 2465, respectively. The back of the foldable display screen 30 is attached to the front of the middle support hinge 2421 and the side support hinges 2423. One of the rotating mechanisms 2463 rotates relative to the base 2461 to drive the other rotating mechanism 2463 to rotate synchronously relative to the base 2461 through the linkage mechanism, so as to realize the synchronous bending or synchronous unfolding of the supporting mechanism 242. The multiple middle supporting plates 351 and the bendable area 321 of the display screen body 32 are bent or unfolded along with the supporting mechanism 242.

[0044] like Figure 6-Figure 13As shown, the display screen support assembly 35 also includes a connector 355 connected to the middle support plate 351. Multiple middle support plates 351 are connected by the connector 355 to achieve splicing, and two adjacent middle support plates 351 can be folded or flattened with each other. The connector 355 can be but not limited to thermoplastic polyurethane rubber (TPU) or silicone, etc. The connector 355 connects multiple middle support plates 351 together. Multiple middle support plates 351 are arranged along a folding axis direction perpendicular to the two frames 22, so that two adjacent middle support plates 351 can be rotatably spliced ​​with each other.

[0045] Optionally, the middle support plate 351 further includes a front side 3512 and a back side 3514 facing away from the front side 3512, and the connector 355 is connected to the front side 3512 or the back side 3514 of the plurality of middle support plates 351, so that the plurality of middle support plates 351 are spliced ​​together, and two adjacent middle support plates 351 can be foldably connected to each other. In this embodiment, the connector 355 is connected to the back side 3514 of the plurality of middle support plates 351. Specifically, the middle support plate 351 is a rectangular plate, which includes a front side 3512 facing the foldable display screen 30, a back side 3514 facing away from the foldable display screen 30, two opposite side surfaces 3516, and two opposite end surfaces 3517; the connector 355 is connected to the back side 3514 of the plurality of rectangular plates. When the multiple middle support plates 351 are in a flattened state, the front sides 3512 of the multiple middle support plates 351 are coplanar, and the side sides 3516 of two adjacent middle support plates 351 are in contact with each other; when the multiple middle support plates 351 are in a folded state, the front sides 3512 of the multiple middle support plates 351 are bent into an arc-shaped surface.

[0046] In some embodiments, the middle support plate 351 may also be a strip plate of other shapes, such as a sinusoidal wave plate.

[0047] Optionally, the connecting member 355 of the display screen support assembly 35 is connected to the side of the outer curved area 3532 of the side support plate 353 away from the display screen body 32. Specifically, the connecting member 355 covers the back surface 3514 of the plurality of middle support plates 351 and the side of the outer curved area 3532 of the two side support plates 353 away from the display screen body 32.

[0048] Please also read Figure 8-Figure 9 and Figure 11-13, the plurality of middle support plates 351 include a first bending axis L1 located in the middle of the bend, and the outer bending area 3532 of each side support plate 353 is provided with a second bending axis L2 near the middle, that is, each outer bending area 3532 covers the corresponding second bending axis L2. The outer bending area 3532 includes a bending portion 3532a and a straight portion 3532b, and the straight portion 3532b is closer to the plurality of middle support plates 351 than the bending portion 3532a, that is, the side of the straight portion 3532b away from the bending portion 3532a is connected to the middle support plate 351 at the most side.

[0049] like Figure 14-16 As shown, when the electronic device 100 is folded, the display screen body 32 and the display screen support assembly 35 are bent; specifically, the foldable display screen 30 is bent with the first bending axis L1 in the middle position of the multiple middle support plates 351 as the axis, and at the same time, the two outer bending areas 3532 of the foldable display screen 30 are bent with the two second bending axes L2 as the axes, respectively, thereby forming a water drop-shaped bending structure similar to a water drop.

[0050] A plurality of grooves 3530 that do not penetrate the side support plate 353 are formed on the side of the bending portion 3532a facing away from the display screen body 32. The plurality of grooves 3530 are arranged at intervals along a first direction from the middle support plate 351 to the side support plate 353, and each groove 3530 extends along a second direction; the second direction is perpendicular to the first direction.

[0051] Optionally, the connecting member 355 of the display screen support assembly 35 is connected to the side of the outer curved area 3532 of the side support plate 353 away from the display screen body 32, and part of the connecting member 355 is accommodated in the groove 3530. Specifically, the connecting member 355 is connected to the back surface 3514 and the two outer curved areas 3532 of the plurality of middle support plates 351, so that the plurality of middle support plates 351 and the two side support plates 353 are connected as one body, and part of the connecting member 355 is accommodated in each groove 3530.

[0052] In some embodiments, each groove 3530 extends along the second direction to two ends of the bending portion 3532a, that is, two opposite ends of each groove 3530 pass through two opposite end surfaces of the side support plate 353 along the second direction.

[0053] In other embodiments, at least part of the groove 3530 may not extend to both ends of the bent portion 3532a, but may form a groove having an opening only on the side of the bent portion 3532a facing away from the display screen body 32. For example, in some embodiments, part of the groove 3530 on the side of the bent portion 3532a facing away from the display screen body 32 extends along the second direction to both ends of the bent portion 3532a, and part of the groove 3530 does not extend to both ends of the bent portion 3532a.

[0054] The sizes of the plurality of grooves 3530 along the first direction may be the same or different. The size of the groove 3530 along the first direction is the width of the groove 3530 , that is, the widths of the plurality of grooves 3530 may be the same or different.

[0055] Preferably, the width of the groove 3530 located in the middle of the bending portion 3532a is greater than the width of the grooves 3530 located on both sides of the bending portion 3532a. Further, the width of the plurality of grooves 3530 gradually decreases from the middle of the bending portion 3532a along the first direction, so as to facilitate the bending of the outer bending area 3532.

[0056] By designing the bending portion 3532a to have a plurality of grooves 3530 that do not penetrate the side support plates 353 on the side facing away from the display screen body 32, the bending portion 3532a can also bend when the display screen body 32 is bent at the positions corresponding to the plurality of middle support plates 351, thereby meeting the requirements of the foldable display screen 30 when being folded. The bending portion 3532a can effectively support the corresponding positions of the display screen body 32 when the display screen body 32 is unfolded.

[0057] The middle support plate 351 and the side support plates 353 can be support plates made of hard materials, for example, hard plastic, aluminum, iron, copper, etc. The thickness of the middle support plate 351 and the side support plates 353 can be thin, for example, 0.5 mm.

[0058] like Figure 1-Figure 8As shown, when assembling the electronic device 100, the folding device 24 is placed between the two frames 22, so that the opposite sides of the folding device 24 are respectively accommodated in the mounting grooves 226 of the two frames 22, that is, the two rotating mechanisms 2463 on the opposite sides of each folding assisting mechanism 246 are respectively accommodated in the mounting grooves 226 of the two frames 22 on one side away from the base 2461, and the rotating mechanisms 2463 are connected to the corresponding frames 21; then the display screen support assembly 35 is assembled, specifically, a plurality of middle support plates 351 are arranged along the width direction thereof, and two side support plates 353 are placed between the plurality of middle support plates 351 and the side support plates 353. 51, the connector 355 is connected to the back of the middle support plates 351 and the back of the outer bending area 3532 of the two connectors 355, so that the middle support plates 351 and the two connectors 355 are connected as one; the display screen body 32 is arranged on the front of the display screen support assembly 35, specifically, the bendable area 321 is stacked on the front of the middle support plates 351, the two bendable areas 323 are respectively stacked on the front of the outer bending area 3532 of the two side support plates 353, and the two non-bendable areas 325 are respectively stacked on the straight areas 3534 of the two side support plates 353. The back of the foldable display screen 30 is stacked on the front of the foldable housing 20, specifically, the connector 355 is stacked on the front of the support mechanism 242, and the two side support plates 353 are respectively stacked on the front 221 of the two frames 22. At this time, the middle support plates 351 support the bendable area 321.

[0059] Optionally, the number of the outer bending areas 3532 is two, and the two outer bending areas 3532 are symmetrically distributed with the first bending axis L1 as a symmetry axis, and the two outer bending areas 3532 are respectively connected to opposite sides of the plurality of middle support plates 351 .

[0060] like Figure 14-17 As shown, when the electronic device 100 is folded, the foldable display screen 30 is folded along with the foldable housing 20, the plurality of middle support plates 351 and the bendable area 321 are bent along the first bending axis L1, and the two bendable areas 323 are bent along the corresponding second bending axis L2 at the positions corresponding to the two outer bending areas 3532, thereby forming Fig.16 When the electronic device 100 is flattened, the foldable display screen 30 is flattened along with the foldable housing 20, the middle support plates 351 and the bendable area 321 are unfolded with the first bending axis L1 as the axis, and the two bendable areas 323 are flattened with the corresponding second bending axis L2 at the positions corresponding to the two outer bending areas 3532, until the front faces of the middle support plates 351 and the front faces of the two side support plates 351 are coplanar, so that the light-emitting surface of the foldable display screen 30 is horizontal.

[0061] like Fig.17 As shown, the display screen body 32 includes a flexible film cover 320, an optical adhesive film 322, a polarizer 324, a touch film layer 326, a flexible screen body 327 and a flexible substrate layer 328 stacked in sequence, a plurality of middle support plates 351 and two side support plates 353 of the display screen support assembly 35 are stacked on a side of the flexible substrate layer 328 facing away from the flexible screen body 327, and a connecting member 355 is connected to a side of the plurality of middle support plates 351 and two side support plates 353 facing away from the display screen body 32.

[0062] When the foldable display screen 30 is in a flattened state, the multiple middle support plates 351 are also in a flattened state, and the side surfaces 3516 of each two adjacent middle support plates 351 fit together, and the two side support plates 351 respectively fit together with the side surfaces 3516 of the corresponding two middle support plates 351, so that the front of the display screen support assembly 35 has no grooves or openings, etc., so that the display screen support assembly 35 has better anti-frontal impact effect on the display screen body 32. Even if the user happens to touch a sharp object while using the electronic device 100, the sharp object is not easy to poke and damage the foldable display screen 30.

[0063] See also Fig.18 , Fig.18 : is a partial cross-sectional view of a foldable display screen 30a in another embodiment of the present application. The structure of the foldable display screen 30a in another embodiment of the present application is similar to that of the foldable display screen 30 in the above embodiment, except that: there is a gap 3513 between two adjacent middle support plates 351, and part of the connecting member 355 is located in the gap 3513 to form a connecting edge 3552, and the connecting edge 3552 is connected to the middle support plate 351, so that the connection of the multiple middle support plates 351 is more secure. When the multiple middle support plates 351 are in a flattened state, the front faces of the multiple middle support plates 351 are coplanar, and the sides of the two adjacent middle support plates 351 are close to each other, so that the multiple middle support plates 351 have a better anti-frontal impact effect. Optionally, the width of the middle support plate 351 facing the display screen body 32 is greater than the width of the middle support plate 351 away from the display screen body 32, that is, the side of the middle support plate 351 is an inclined surface; the side surfaces of two adjacent middle support plates 351 away from the display screen body 32 form a gap 3513, and the connecting edge 3552 is accommodated in the gap 3513.

[0064] See also Fig.19 , Fig.19: is a partial cross-sectional view of a foldable display screen 30b in another embodiment of the present application. The structure of the foldable display screen 30b in another embodiment of the present application is similar to that of the foldable display screen 30 in the above embodiment, except that: a connecting member 355 is connected to the front of multiple middle support plates 351, so that multiple middle support plates 351 are spliced ​​together, and two adjacent middle support plates 351 are foldably connected; when multiple middle support plates 351 are in a flattened state, the sides of two adjacent middle support plates 351 fit each other without gaps, so that multiple middle support plates 351 have a better anti-frontal impact effect on the display screen body 32. Optionally, the connecting member 355 is connected between the front of multiple middle support plates 351 and the flexible substrate layer 328 of the display screen body 32. Optionally, the connecting member 355 is connected to the front of multiple middle support plates 351 and the front of two side support plates 353.

[0065] See also Fig. 20 , Fig. 20 : is a partial cross-sectional view of a foldable display screen 30c in another embodiment of the present application. The structure of the foldable display screen 30c in another embodiment of the present application is similar to the structure of the foldable display screen 30b in the above embodiment, except that: there is a gap 3513 between two adjacent middle support plates 351, and part of the connecting member 355 is located in the gap 3513 to form a connecting edge 3552, and the connecting edge 3552 is connected to the middle support plate 351, so that the connection of the multiple middle support plates 351 is more secure. When the multiple middle support plates 351 are in a flattened state, the front faces of the multiple middle support plates 351 are coplanar, and the two adjacent middle support plates 351 are close to each other, so that the multiple middle support plates 351 have a better anti-frontal impact effect on the display screen body 32. Optionally, the connecting member 355 is connected between the front faces of the multiple middle support plates 351 and the front faces of the two side support plates 353 and the flexible substrate layer 328.

[0066] See also Fig.21 , Fig.21 : is a partial cross-sectional view of a foldable display screen 30d in another embodiment of the present application. The structure of the foldable display screen 30d in another embodiment of the present application is similar to that of the foldable display screen 30 in the above embodiment, except that: the connector 355 covers the front, back and opposite sides of the middle support plate 351; optionally, the connector 355 covers the front, back and opposite sides of each middle support plate 351, and the connector 355 covers the front, back and sides facing the middle support plate 351 of the two side support plates 353, so that the splicing of multiple middle support plates 351 is more secure. Optionally, the connector 355 wraps each middle support plate 351 so that multiple middle support plates 351 are spliced ​​into a whole.

[0067] In the present application, the connector 355 of the foldable display screen 30 foldably connects the plurality of middle support plates 351 together to support the bendable area 321 of the display screen body 32, and the plurality of middle support plates 351 are folded or flattened along with the bendable area 321. When the display screen body 32 is in a flattened state, the sides of two adjacent middle support plates 351 are attached to each other, so that there is no gap on the front of the plurality of middle support plates 351, and the plurality of middle support plates 351 have a better anti-frontal impact effect on the bendable area 321.

[0068] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0069] The embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A display screen support assembly, characterized in that: The display screen support assembly comprises: A middle support plate, wherein a plurality of the middle support plates are arranged along the width direction thereof, the plurality of the middle support plates are spliced ​​with each other, and each of the middle support plates includes two opposite side surfaces; and Side support plates, multiple middle support plates are arranged between two adjacent side support plates, multiple middle support plates can be bent or unfolded so that the display screen support assembly is in a folded state or a flattened state, and the length direction of the middle support plate is parallel to the folding axis of the display screen support assembly; when the display screen support assembly is in a flattened state, the side surfaces of the two adjacent middle support plates are close to each other.

2. The display screen support assembly according to claim 1, characterized in that: The display screen support assembly also includes a connector connected to the middle support plate, and a plurality of the middle support plates are connected by the connector to achieve splicing, and two adjacent middle support plates can be folded or flattened with each other.

3. The display screen support assembly according to claim 2, characterized in that: The middle support plate also includes a front side, and the connecting member is connected to the front sides of the plurality of middle support plates.

4. The display screen support assembly according to claim 3, characterized in that: There is a gap between two adjacent middle support plates, and part of the connecting members is located in the gap and connected to the middle support plates.

5. The display screen support assembly according to claim 2, characterized in that: The middle support plate also includes a back surface, and the connecting member is connected to the back surfaces of the plurality of middle support plates.

6. The display screen support assembly according to claim 5, characterized in that: There is a gap between two adjacent middle support plates, and part of the connecting members is located in the gap and connected to the middle support plates.

7. The display screen support assembly according to claim 2, characterized in that: The middle support plate also includes a front side and a back side, and the connecting member covers the front side, the back side and two opposite side surfaces of the middle support plate.

8. The display screen support assembly according to claim 2, characterized in that: The connecting piece wraps each of the middle support plates so that the plurality of middle support plates are spliced ​​into a whole.

9. The display screen support assembly according to claim 2, characterized in that: The connecting piece is made of TPU or silicone.

10. A foldable display screen, characterized in that: The foldable display screen comprises: A display screen body, the display screen body comprising a bendable area and non-bendable areas respectively arranged on opposite sides of the bendable area, the bendable area can be bent or unfolded so that the display screen body is in a folded state or an unfolded state; and The display screen support assembly as described in any one of claims 1 to 9, wherein a plurality of middle support plates of the display screen support assembly are stacked on the bendable area to support the bendable area; the two side support plates of the display screen support assembly are respectively stacked on the two non-bendable areas to support the non-bendable areas; and the plurality of middle support plates can be bent or unfolded along with the bendable area.

11. The foldable display screen according to claim 10, characterized in that: The display screen body also includes a bendable area connected to each of the non-bendable areas and the bendable area, the side support plate includes an outer bending area on a side close to the middle support plate, the outer bending areas of the two side support plates are respectively stacked on the two bendable areas, and the outer bending areas are bent or flattened along with the corresponding bendable areas.

12. The foldable display screen according to claim 11, characterized in that: The connecting piece of the display screen supporting assembly is connected to a side of the outer curved area of ​​the side supporting plate which faces away from the display screen body.

13. The foldable display screen according to claim 11, characterized in that: A side of the outer curved area facing away from the display screen body is provided with a plurality of grooves which do not penetrate the side support plate, and the plurality of grooves are arranged at intervals along a first direction from the middle support plate to the side support plate, and each groove extends along a second direction, and the second direction is perpendicular to the first direction.

14. The foldable display screen according to claim 13, characterized in that: The connecting piece of the display screen supporting assembly covers a side of the outer curved area of ​​the side supporting plate away from the display screen body, and a part of the connecting piece is accommodated in the groove.

15. An electronic device, characterized in that: The electronic device comprises a foldable display screen as described in any one of claims 10-14.

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