CN112740307A

CN112740307A - Foldable display device

Info

Publication number: CN112740307A
Application number: CN201880094174.5A
Authority: CN
Inventors: 刘文俊; 陈松亚
Original assignee: Shenzhen Royole Technologies Co Ltd
Current assignee: Shenzhen Royole Technologies Co Ltd
Priority date: 2018-08-09
Filing date: 2018-08-21
Publication date: 2021-04-30
Also published as: CN208922657U; WO2020029483A1; CN112639666A; CN209860956U; WO2020029605A1; WO2020029322A1; CN112640398A; WO2020029795A1; CN112639662A

Abstract

A foldable display device (100) includes a first housing (10), a second housing (20), a rotation shaft assembly (30), a first support (50), a flexible protector (40), and a flexible screen assembly (60). The flexible screen assembly (60) is stacked on the first shell (10), the second shell (20) and the rotating shaft assembly (30), the first supporting piece (50) is fixed on the rotating shaft assembly (30) and supports the edge area of the flexible screen assembly (60), and the flexible protecting piece (40) is fixed on the first supporting piece (50) and covers the rotating shaft assembly (30). Through cladding flexible protection piece (40) on pivot subassembly (30) to prevent that pivot subassembly (30) from exposing outside, avoid pivot subassembly (30) to receive external influence and rust, damage etc. avoid pivot subassembly (30) to clip the user's of holding equipment palm, in order to protect the user.

Description

Foldable display device

Technical Field

The invention relates to the technical field of display, in particular to a foldable display device.

Background

The foldable devices of the prior art are generally connected by a rotating shaft assembly to connect structures on two sides of the device, so as to realize the folding of the device. The rotating shaft assembly generally has a larger difference in structural appearance from both sides thereof. The exposed rotating shaft component is easy to clamp the palm of a user holding the equipment, so that the human body is injured. In addition, the exposed rotating shaft assembly is not protected, and is easily rusted and damaged by the influence of the outside.

Disclosure of Invention

The invention provides a foldable display device for protecting a rotating shaft assembly and a user.

The foldable display device comprises a first shell, a second shell, a rotating shaft assembly, a first supporting piece, a flexible protection piece and a flexible screen assembly, wherein two opposite sides of the rotating shaft assembly are respectively connected with the first shell and the second shell, the flexible screen assembly is stacked on the first shell, the second shell and the rotating shaft assembly, the first supporting piece is fixed on the rotating shaft assembly and supports the edge area of the flexible screen assembly, and the flexible protection piece is fixed on the first supporting piece and covers the rotating shaft assembly.

According to the foldable display device provided by the invention, the rotating shaft assembly is coated with the flexible protection piece, so that the rotating shaft assembly is prevented from being exposed outside through the flexible protection piece, and the rotating shaft assembly is prevented from rusting, being damaged and the like due to the influence of the outside. And the rotating shaft assembly is covered with the flexible protection piece, so that the exposed rotating shaft assembly is prevented from clamping the palm of a user holding the equipment, and the user is protected.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is an exploded view illustrating a structure of the foldable display device according to an embodiment of the present invention;

FIG. 2 is a schematic front view of the foldable display device of the embodiment of FIG. 1;

FIG. 3 is a schematic side view of the foldable display device of the embodiment of FIG. 1 after being folded;

FIG. 4 is a schematic structural view of the spindle assembly according to an embodiment of the present invention;

FIG. 5 is a schematic view of a first support member according to an embodiment of the present invention after bending;

FIG. 6 is a schematic structural diagram of a first supporting member and a second supporting member according to an embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of the foldable display device of the embodiment of FIG. 1;

fig. 8 is an enlarged schematic view of position II of the foldable display device of the embodiment of fig. 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a foldable display device 100, and the foldable display device 100 may be a mobile phone, a tablet, an electronic reader, a computer, an electronic display screen, and other display devices. The foldable display device 100 includes a first housing 10, a second housing 20, a hinge assembly 30, a first support 50, and a flexible screen assembly 60. The rotating shaft assembly 30 is located between the first housing 10 and the second housing 20 and connected to the first housing 10 and the second housing 20, so that the rotating shaft assembly 30 realizes the relative rotation of the first housing 10 and the second housing 20, and further realizes the folding of the foldable display device 100. The flexible screen assembly 60 is stacked on the first housing 10, the second housing 20, and the rotation shaft assembly 30 to support the flexible screen assembly 60 through the first housing 10, the second housing 20, and the rotation shaft assembly 30. The flexible screen assembly 60 can be folded, and the rotating shaft assembly 30 is folded or unfolded to drive the flexible screen assembly 60 to fold or unfold and drive the first supporting member 50 to bend.

Referring to fig. 4, the rotating shaft assembly 30 includes at least one bending shaft, and the rotating shaft assembly 30 is folded by the bending shaft. It should be understood that the bending axis of the present invention is not limited to a physical axis, but may be a virtual axis, i.e. the bending axis can be considered as long as the rotating shaft assembly 30 bends around one axis. In this embodiment, the rotating shaft assembly 30 includes at least two rotating shafts 31, and two adjacent rotating shafts 31 are connected by a bending shaft, so that the rotating shaft assembly 30 can rotate by using the bending shaft at the connecting position of the two adjacent rotating shafts 31 as a shaft. It is understood that in other embodiments of the present invention, the rotating shaft assembly 30 includes at least two rods, adjacent rods can be rotatably connected through a damping piece, and the damping piece is rotatably connected with the rods connected with the damping piece, so that the rotating shaft assembly 30 uses the rods as bending axes.

Further, in this embodiment, there are a plurality of the rotating shafts 31, and the plurality of the rotating shafts 31 are disposed along the direction from the first casing 10 to the second casing 20. The extending direction of the rotating shafts 31 is perpendicular to the direction from the first casing 10 to the second casing 20, and the adjacent rotating shafts 31 are connected by a bending shaft. A first connecting plate 32 perpendicular to the extending direction of the rotating shaft 31 is arranged on the rotating shaft 31 close to the first housing 10, and the first connecting plate 32 connects the rotating shaft 31 and the first housing 10, so that the rotating shaft assembly 31 is connected with the first housing 10. Specifically, one end of the first connection plate 32 is fixed to the rotation shaft 31, and the other end is inserted into the first housing 10 and moves relative to the inner wall of the first housing 10. Wherein, a first stroke hole 321 is arranged at one end of the first connecting plate 32 connected with the first housing 10. The first stroke hole 321 extends in a direction perpendicular to the extending direction of the rotation shaft 31, i.e., in the same direction as the extending direction of the first connection plate 32. The inner wall of the first housing 10 is provided with a first fixing member (not shown), which passes through the first stroke hole 321 and moves in the first stroke hole 321 along the extending direction thereof. When the rotating shaft assembly 30 is bent or flattened, the first fixing piece moves along the first stroke hole 321, so that the length of the rotating shaft assembly 30 between the first shell 10 and the second shell 20 facing the flexible screen assembly 60 along the direction from the first shell 10 to the second shell 20 is kept unchanged by the movement of the first fixing piece in the first stroke hole 321, and the problem that the flexible screen assembly 60 is stretched when the rotating shaft assembly 30 is converted from a flat state to a bent state is avoided.

Further, a second connecting plate 33 perpendicular to the extending direction of the rotating shaft 31 is disposed on the rotating shaft 31 near the second housing 20, and the second connecting plate 33 connects the rotating shaft 31 and the second housing 20, so that the rotating shaft assembly 31 is connected with the second housing 20. Specifically, one end of the second connecting plate 33 is fixed to the rotating shaft 31, and the other end is inserted into the second housing 20 and moves relative to the inner wall of the second housing 20. Wherein, the end of the second connecting plate 33 connected with the second housing 20 is provided with a second stroke hole 331. The second stroke hole 331 extends in a direction perpendicular to the extension direction of the rotation shaft 31, i.e., in the same direction as the extension direction of the second link plate 33. The inner wall of the first housing 10 is provided with a second fixing member (not shown), which passes through the second stroke hole 331 and moves in the second stroke hole 331 along the extending direction thereof. When the rotating shaft assembly 30 is bent or flattened, the second fixing member moves along the second stroke hole 331, so that the length of the rotating shaft assembly 30 between the first shell 10 and the second shell 20 facing the flexible screen assembly 60 along the direction from the first shell 10 to the second shell 20 is kept unchanged by the movement of the second fixing member in the second stroke hole 331, thereby avoiding the problem that the flexible screen assembly 60 is stretched when the rotating shaft assembly 30 is converted from a flat state to a bent state, and ensuring the quality of the flexible screen assembly 60.

Referring to fig. 1, 4 and 5, the first supporting element 50 is an elastic element, and can be bent to form a smooth circular arc shape along with the bending of the rotating shaft element 30. In this embodiment, the first supporting member 50 is made of steel sheet. The first supporting member 50 is partially fixed on an end surface of one end of the rotating shaft assembly 30, and the other portion is bent toward the flexible screen assembly 60 and presses against an edge of the flexible screen assembly 60, so that when the foldable display device 100 is folded or unfolded, the first supporting member 50 can be bent with the same curvature as the flexible screen assembly 60 along with the bending of the flexible screen assembly 60. In this embodiment, the first supporting element 50 is located between the first casing 10 and the second casing 20, that is, the first supporting element 50 only presses the edge of the portion of the flexible screen assembly 60 corresponding to the rotating shaft assembly 30.

The first supporting member 50 includes an elastic piece 51 extending along the first casing 10 toward the second casing 20, and a plurality of first supporting pieces 52 spaced along a length direction of the elastic piece 51. The flexible panel assembly 60 includes a display surface and a back surface opposite to the display surface, the elastic sheet 51 is laminated on an edge of the display surface of the flexible panel assembly 60, and the first support sheet 52 extends from the elastic sheet 51 toward an end surface of one end of the rotation shaft assembly 30 and is fixed to the end surface of the rotation shaft assembly 30. In this embodiment, each of the first supporting pieces 52 is fixed to an end surface of one of the rotating shafts 31. The elastic piece 51 is integrally formed with the first support piece 52.

The elastic piece 51 is a strip-shaped rectangle, and the extending direction of the elastic piece is the same as the extending direction of the side edge of the flexible screen assembly 60 and is parallel to the surface of the flexible screen assembly 60, so that the edge of the flexible screen assembly 60 can be pressed by a larger contact area. When the flexible screen assembly 60 is bent, the elastic pieces are also bent with the same curvature. In this embodiment, the elastic piece 51 is a steel strip. The first support pieces 52 are connected to the elastic piece 51 at equal intervals in the longitudinal direction of the elastic piece 51, and a gap is provided between adjacent first support pieces 52. The surface of the first supporting piece 52 is attached to the end surface of the rotating shaft assembly 30 and fixed to the end surface of the rotating shaft assembly 30 by means of dispensing or magnetic attraction, fastening, and the like, so that the first supporting piece 50 is fixed to the rotating shaft assembly 30. Specifically, in this embodiment, the rotating shaft assembly 30 includes a plurality of rotating shafts 31, the first supporting pieces 52 are also provided in plurality, the first supporting pieces 52 correspond to the rotating shafts 31 one by one, and each first supporting piece 52 is fixed on an end surface of the corresponding rotating shaft 31. In this embodiment, a magnet 34 is embedded in an end surface of each of the rotating shafts 31, and the first supporting piece 52 is made of a magnetic material and can be fixed to the magnet 34 by magnetic attraction, so that the first supporting piece 50 and the rotating shaft assembly 30 are fixed by magnetic attraction. In this embodiment, the first supporting member 50 is formed of a steel sheet.

Referring to fig. 1, fig. 4 and fig. 6, further, the foldable display device 100 further includes a second supporting member 70, and the second supporting member 70 covers and is fixed to a surface of the rotating shaft assembly 30 away from the flexible screen assembly 60 and a side surface of a part of the rotating shaft assembly 30. In this embodiment, the second supporting member 70 includes a plurality of second sub-supporting members 71 disposed at intervals, and each of the second sub-supporting members 71 is fixed to one of the rotating shafts 31. Each of the second sub-supports 71 is fixed to the same rotating shaft 31 as one of the first support pieces 52 and aligned in the extending direction of the rotating shaft 31. The second sub-supporting member 71 includes a first portion 711 disposed on a surface of the rotating shaft assembly 30 facing away from the flexible screen assembly 60 and a second portion 712 disposed on a side surface of the rotating shaft assembly 30, and the second portion 712 bends and extends from two ends of the first portion 711 toward the first supporting sheet 52. Each of the first supporting pieces 52 and the second portion 712 of one of the second sub-supporting members 71 cover an end surface of the rotating shaft 31, and the first portion 711 of the second sub-supporting member 71 covers a surface of the rotating shaft 31 facing away from the flexible screen assembly 60. The end of the first support sheet 52 remote from the elastic sheet 51 is close to and spaced apart from the end of the second portion 712 of the second sub-support 71 by a gap. The width of the first support sheet 52 is equal to or similar to the width of the second portion 712. In this embodiment, a groove is formed on a surface of the rotating shaft 31 facing away from the flexible screen assembly, and the first portion 711711 of the second sub-support 71 is partially or completely embedded in the groove, so that the thickness of the whole foldable display device 100 can be reduced.

In this embodiment, a magnet 34 is disposed on a surface of each of the rotating shafts 31 facing away from the flexible screen assembly 60 and a side surface of each of the rotating shafts 31, and the second sub-supporting members 71 are made of a magnetic material and can be fixed to the magnet 34 by magnetic attraction, so that the second sub-supporting members 71 and the rotating shaft assembly 30 are fixed by magnetic attraction. In this embodiment, the second sub-supporting member 71 is made of the same metal magnetic material as the first supporting member 50 and is made of a steel sheet.

In this embodiment, the position of the gap between the magnet on the side of the rotating shaft 31 and the end of the second part 712 of the second sub-support 71 and the end of the first support piece 52 corresponds, i.e. the magnet can simultaneously attract the second part 712 and the first support piece 52.

Further, a fastening portion 713 is disposed at an end of the first portion 711 of the second sub-supporting member 71 away from the second portion 712, a fastening hole 311 is disposed on the rotating shaft 31, and the fastening portion 713 of the second sub-supporting member 71 is fastened in the fastening hole 311, that is, in this embodiment, the second sub-supporting member 71 and the rotating shaft 31 are fixed by a combination of magnetic attraction and fastening. The engaging portion 713 is formed by bending the first portion 711 integrally, and the bending direction thereof is substantially the same as the bending direction of the second portion 712.

Referring to fig. 1, 6 to 8, the foldable display device 100 further includes a flexible protection member 40, wherein the flexible protection member 40 is located between the first housing 10 and the second housing 20 and covers the rotating shaft assembly 30. The flexible protection member 40 covers the rotation shaft assembly 30 to prevent the rotation shaft assembly 30 from being directly exposed to the outside, thereby improving the appearance effect of the foldable display device 100, and preventing external impurities from entering the rotation shaft assembly 30 or entering the interior of the foldable display device 100 through the rotation shaft assembly 30, thereby ensuring the quality of the foldable display device 100. Meanwhile, the user can be prevented from being injured by the clamp when the rotating shaft assembly 30 is bent. The first support member 50 and the second support member 70 are located between the rotating shaft assembly 30 and the flexible protection member 40, and the flexible protection member 40 is fixed on the first support member 50 and the second support member 70, so that the flexible protection member 40 is supported by the first support member 50 and the second support member 70, and the flexible protection member 40 is fixed on the rotating shaft assembly 30. In this embodiment, the flexible protection member 40 is integrally formed with the first support 50 and the second support 70 by a molding technique such as in-mold injection molding, and the first support 50 and the second support 70 are both located on an inner surface of the flexible protection member 40, so that the flexible protection member 40 is supported by the first support 50 and the second support 70. Because the first supporting member 50, the second supporting member 70 and the rotating shaft assembly 30 are detachably fixed in a magnetic attracting and buckling manner, the flexible protecting member 40 integrated with the first supporting member 50 and the second supporting member 70 and the rotating shaft assembly 30 are detachably fixed in a magnetic attracting and buckling manner, so that the flexible protecting member 40 covers the rotating shaft assembly 30 and is convenient to disassemble and assemble.

The flexible protector 40 is made of a flexible material and can be bent along with the bending of the rotation shaft assembly 30, thereby preventing the flexible protector 40 from affecting the foldable display device 100. In this embodiment, the flexible protection member 40 is made of a silicone material. The flexible protection member 40 includes a flexible cover 41, and

side plates

42 and 43 located on both sides of the flexible cover 41 and connected to the flexible cover 41. The flexible cover plate 41 covers a side of the rotating shaft assembly 30 away from the flexible screen assembly 60, the first portion 711 of the second supporting member 70 is located on an inner surface of the flexible cover plate 41, and the side plate 42 and the side plate 43 cover opposite sides of the rotating shaft assembly 30 and are detachably fixed to two sides of the rotating shaft assembly 30, that is, the second portion 712 of the second supporting member 70 and the first supporting piece 52 of the first supporting member 50 are located on inner surfaces of the side plate 42 and the side plate 43, so that the rotating shaft assembly 30 is covered by the flexible protecting member 40, and the flexible screen assembly 60 can be conveniently detached. Further, opposite ends of the flexible protector 40 are inserted into the first housing 10 and the second housing 20, respectively. When the flexible protection member 40 bends or flattens along with the rotating shaft assembly 30, the rotating shaft assembly 30 performs a travel avoiding position through the first travel hole 321 and/or the second travel hole 331, and when the length of the rotating shaft assembly 30 between the first housing 10 and the second housing 20 towards the flexible screen assembly 60 along the direction of the first housing 10 towards the second housing 20 is kept unchanged, two ends of the flexible protection member 40 can correspondingly move relative to the first housing 10 and the second housing 20, respectively, so that the problem that the flexible protection member 40 is stretched or compressed to generate wrinkles and the like in the folding or flattening process of the rotating shaft assembly 30 is avoided, and the quality of the flexible protection member 40 and the overall appearance of the foldable display device are ensured. Specifically, in this embodiment, each of the first housing 10 and the second housing 20 includes a receiving cavity 11, one end of the flexible protection member 40 facing the first housing 10 and one end of the second housing 20 are respectively inserted into the receiving cavities 11 of the first housing 10 and the second housing 20, and an outer surface of the flexible protection member 40 contacts and moves relative to inner surfaces of the first housing 10 and the second housing 20. The receiving cavity 11 serves as a space for sliding the flexible protection member 40 relative to the first housing 10 and the second housing 20.

Referring to fig. 1 and 2, the free ends of the side plate 42 and the side plate 43 of the flexible protection member 40 form a folded edge 44. The flap 44 is parallel to the flexible screen assembly 60 and extends in the direction from the first housing 10 to the second housing 20. The flap 44 abuts a side edge of the display surface of the flexible screen assembly 60. The elastic piece 51 of the first support 50 is embedded in the inner surface of the folded edge 44 facing the flexible screen assembly 60. The elastic piece 51 can disperse the stress concentration caused by the rotation of the rotating shaft assembly 40 on the folding edge 44, so that the folding edge 44 is not easy to damage. Specifically, each of the rotating shafts 31 of the rotating shaft assembly 30 is substantially rectangular. When the rotating shaft assembly 40 is bent, the adjacent rotating shafts 31 close to the sides of the flexible display screen 60 are separated from each other due to rotation, so that the parts with sharp sides directly press the flexible display screen assembly 60 after rotation, and the stress concentration occurs at the pressed positions. If the flexible sheet 52 is not integrated in the folded edge 44, the concentrated stress is applied to the folded edge 44 through the flexible screen assembly 60, which tends to cause the folded edge 44 to be locally convex, thereby affecting the overall appearance and easily damaging the flexible protector 40. By integrating the elastic sheet 52 in the folded edge 44, the local stress is dispersed by the folded edge 44 after acting on the folded edge 44, so that the folded edge 44 does not have the phenomenon of local bulge, and the same curvature as that of the flexible screen assembly 60 can be kept to be bent into a smooth arc shape. Further, flange 44 may also provide relief from concentrated stresses on flexible screen assembly 60 such that flexible screen assembly 60 may be bent into a desired arc.

The thickness of the flexible protection member 40 inserted into the two ends of the first and

second housings

10 and 20 is smaller than the thickness of the middle region between the two ends, so that the two ends can slide in the receiving cavities of the first and

second housings

10 and 20 after being inserted into the first and

second housings

10 and 20.

Further, a sealing member 80 is disposed between the flexible protection member 40 and the inner walls of the first housing 10 and the second housing 20, and the sealing member 80 seals a gap between the flexible protection member 40 and the first housing 10 and the second housing 20. Specifically, the opposite ends of the flexible protection member 40 are respectively inserted into the first housing 10 and the second housing 20, a ring of sealing member 80 is disposed on the inner surface of the position where the first housing 10 and the second housing 20 are connected to the flexible protection member 40 or the outer surface of the position where the two ends of the flexible protection member 40 are connected to the first housing 10 and the second housing 20, and the sealing member 80 may be an elastic ring such as rubber, so that the first housing 10, the second housing 20 and the flexible protection member 40 are in sealing fit, external water, dust and the like are prevented from entering the first housing 10 and the second housing 20 through the gap between the flexible protection member 40 and the first housing 10 and the second housing 20, and the normal operation of elements disposed in the first housing 10 and the second housing 20 is protected. In this embodiment, the surfaces of the first and

second housings

10 and 20 facing the ends of the flexible protection member 40 are provided with grooves, and the sealing member 80 is accommodated in the grooves.

According to the foldable display device 100 provided by the invention, by arranging the first supporting sheet 50 and enabling part of the first supporting sheet 50 to press against the edge of the flexible screen assembly 60, when the foldable display device 100 is folded or unfolded, the edge of the first supporting member 50 can generate a force action on the edge of the flexible screen assembly 60, so that the position, corresponding to the rotating shaft assembly 30, of the flexible screen assembly 60 forms a smooth arc shape with the same curvature as that of the first supporting member 50, and therefore, the flexible screen assembly 60 is prevented from generating stress concentration and generating wrinkles at the position, corresponding to the bending shaft of the rotating shaft assembly 30, and the service life of the foldable display device 100 is prolonged.

The flexible screen assembly 60 of the present invention is not limited to the screen itself capable of displaying images, but also includes other films or substrates attached to the screen, such as a cover plate, a substrate, an optical adhesive, a polarizing layer, and a phase film. Further, the flexible screen assembly 60 is not limited to the display area itself, and may further include a frame area around the display area, a sealant area between the display area or the frame area and the first casing 10 and the second casing 20, and the like.

It can be understood that, besides abutting against the display surface of the flexible screen assembly 60, the elastic sheet may also abut against the back surface of the flexible screen assembly 60, that is, abut against the edge area of the back surface of the flexible screen assembly 60, and at this time, the folded edge 44 directly covers the edge area of the display surface of the flexible screen assembly, that is, the flexible screen assembly 60 is sandwiched between the folded edge 44 and the elastic sheet 51, which may also have the effect of preventing stress concentration. Further, other elements, materials, etc. (such as supporting steel sheets, silicone cushions, etc.) may be interposed between the elastic sheet 51 and the flexible screen assembly 60, as long as the elastic sheet 51 can support the edge region of the flexible screen assembly 60.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

A foldable display device is characterized by comprising a first shell, a second shell, a rotating shaft component, a first supporting piece, a flexible protecting piece and a flexible screen component, wherein two opposite sides of the rotating shaft component are respectively connected with the first shell and the second shell, the flexible screen component is stacked on the first shell, the second shell and the rotating shaft component, the first supporting piece is fixed on the rotating shaft component and supports the edge area of the flexible screen component, and the flexible protecting piece is fixed on the first supporting piece and covers the rotating shaft component.
The foldable display device of claim 1, wherein a bending curvature of the first support is the same as a bending curvature of the flexible screen assembly.
The foldable display device of claim 1, wherein the first support sheet bends with the rotation shaft assembly when the rotation shaft assembly bends.
The foldable display device of claim 1, wherein the flexible screen assembly comprises a display surface and a back surface opposite the display surface, the flexible protector comprising a flap covering an edge region of the display surface of the flexible screen assembly.
The foldable display device of claim 4, wherein the first support sheet comprises an elastic sheet sandwiched between the flexible protector flange and an edge area of the display surface of the flexible screen assembly.
The foldable display device of claim 5, wherein the elastic sheet abuts against an edge area of the display surface of the flexible screen assembly and is fixed to the fold edge of the flexible protection member.
The foldable display device of claim 6, wherein when the rotation shaft assembly is bent, the elastic piece follows the bending of the rotation shaft assembly and a hem supporting the flexible protector is formed in a smooth arc shape.
The foldable display device of claim 4, wherein the first support member further comprises a first support piece protruding from a side edge of the elastic piece, and the first support piece is fixed to an end surface of the rotation shaft assembly.
The foldable display device of claim 8, wherein the first support piece is fixed with the flexible protector and detachably fixed with an end face of the rotation shaft assembly.
The foldable display device of claim 8 or 9, wherein a magnet is disposed on an end surface of the rotation shaft assembly, and the first supporting piece and the rotation shaft assembly are fixed by magnetic attraction.
The foldable display device of claim 10, wherein the end face of the rotation shaft assembly has a plurality of magnets, the first support pieces are provided in a one-to-one correspondence with the magnets on the end face of the rotation shaft assembly, and each of the first support pieces is disposed at an interval on the elastic piece and is attracted to the corresponding magnet.
The foldable display device of claim 8, wherein the foldable display device comprises a second support member covering and secured to a side of the hinge assembly facing away from the flexible screen assembly.
The foldable display device of claim 12, wherein the hinge assembly comprises a plurality of hinges rotatably connected, and the second support member comprises a plurality of second sub-support members spaced apart from each other, each of the second sub-support members being fixed to one of the hinges.
The foldable display device of claim 13, wherein a surface of the rotation shaft facing away from the flexible screen assembly is provided with a groove, and the second sub-support is embedded in the groove.
The foldable display device of claim 13, wherein a magnet is disposed on a side of each of the rotation shafts facing away from the flexible screen assembly, and each of the second sub-supporting members is magnetically fixed to the rotation shaft.
The foldable display device of claim 13, wherein the end face of the rotation shaft assembly is provided with a plurality of magnets, and both ends of each second sub-support member extend to the end face of the rotation shaft assembly and are fixed by being attracted to the corresponding magnets on the end face of the rotation shaft assembly.
The foldable display device of claim 13, wherein each second sub-support member extends to an end surface of the rotation shaft assembly near an end of the corresponding first support sheet away from the elastic sheet and is separated by a gap.
The foldable display device of claim 13, wherein a fastening portion is disposed at one end of the second sub-supporting member, a fastening hole is disposed on the rotation shaft, and the fastening portion of the second sub-supporting member is fastened in the fastening hole to fix the second sub-supporting member and the rotation shaft.
The foldable display device of claim 12, wherein the flexible protection member is integrally formed with the first and second supports.
The foldable display device of claim 1, wherein opposite ends of the flexible protection member are inserted into the first housing and the second housing, respectively.
The foldable display device of claim 20, wherein both ends of the flexible protection member are relatively moved with respect to the first housing and the second housing, respectively, when the rotation shaft assembly is bent or unfolded.
The foldable display device of claim 20 or 21, wherein a seal is provided between the flexible protector and the inner walls of the first and second housings, the seal sealing a gap between the flexible protector and the first and second housings.