Flexible display device

Abstract

This application provides a flexible display device, including a housing forming a storage cavity, a winding mechanism, a flexible display screen, and a stretching mechanism. An opening is formed in the storage cavity. The flexible display screen is disposed outside the housing, with one end extending through the opening and connected to the winding mechanism. The housing includes a first housing, a second housing, and a connecting member connecting the first and second housings. The storage cavity is disposed within the first housing and / or the second housing. When the flexible display screen is in a first state, the first and second housings are flattened around the connecting member, and the stretching mechanism moves in a direction away from the housing to pull the flexible display screen out of the winding mechanism. When the flexible display screen is in a second state, the stretching mechanism moves in a direction toward the housing to retract the flexible display screen into the winding mechanism, and the first and second housings are folded around the connecting member. This application results in a smaller overall size of the flexible display device when not in use, and the housing can protect the internal flexible display screen from damage.

Description

[0001] This application is a divisional application of application number 201910362478.1 filed on April 30, 2019, entitled "Flexible Display Device". Technical Field

[0002] This application relates to the field of display technology, and more particularly to a flexible display device. Background Technology

[0003] Flexible display devices have the advantage of good bending resistance, and can be made smaller in size and occupy less space by folding and rolling, so they are becoming increasingly popular in the market.

[0004] Existing flexible display devices mainly use inward or outward bending to house the flexible display screen, but the flexible display devices folded in these two ways are still relatively large and cannot meet the needs of portability.

[0005] Therefore, existing flexible display devices have the technical problem of excessively large volume after the flexible display screen is rolled up, and improvements are needed. Summary of the Invention

[0006] This invention provides a flexible display device to alleviate the technical problem of excessively large volume of the flexible display screen after it is rolled up in existing flexible display devices.

[0007] To solve the above problems, the technical solution provided by the present invention is as follows:

[0008] This invention provides a flexible display device, comprising:

[0009] A housing, wherein a storage cavity is formed inside the housing, and an opening is formed on at least one of the opposite sides of the storage cavity;

[0010] At least one winding mechanism is disposed within the receiving cavity;

[0011] A flexible display screen is disposed outside the housing, with one end of the flexible display screen extending into the opening and connected to the winding mechanism;

[0012] At least one stretching mechanism is disposed within the receiving cavity, and each stretching mechanism is connected to one of the winding mechanisms.

[0013] When the flexible display screen is in the first state, the stretching mechanism pulls the winding mechanism to move in a direction away from the housing, pulling the flexible display screen out of the winding mechanism; when the flexible display screen is in the second state, the stretching mechanism pulls the winding mechanism to move in a direction toward the housing, winding the flexible display screen into the winding mechanism.

[0014] In the flexible display device of the present invention, the housing includes a first housing, a second housing, and a connecting member connecting the first housing and the second housing. A first storage cavity is formed inside the first housing, and a second storage cavity is formed inside the second housing. At least one of the first storage cavity and the second storage cavity has an opening on the side away from the connecting member. When the flexible display screen is in a first state, the first housing and the second housing are flattened around the connecting member. When the flexible display screen is in a second state, the first housing and the second housing are folded around the connecting member.

[0015] In the flexible display device of the present invention, the first winding mechanism includes a winding member with parallel axes and a first roller that does not contact each other. The first roller is disposed between the winding member and the opening. The winding member and the first roller are fixed on the tensioning mechanism. One end of the flexible display screen is connected to the winding member and extends out of the housing from the opening around the first roller.

[0016] In the flexible display device of the present invention, the winding member is a coil spring.

[0017] In the flexible display device of the present invention, the winding mechanism further includes a driving member, which drives the winding member to pull the flexible display screen out or retract the first housing.

[0018] In the flexible display device of the present invention, the first winding mechanism further includes a second roller, the second roller and the first roller are disposed on both sides of the winding member, the distance between the second roller and the opening is greater than the distance between the first roller and the opening, the axes of the first roller and the second roller are parallel, one end of the flexible display screen is connected to the winding member, and extends out of the housing from the opening by passing around the second roller and the first roller in sequence.

[0019] In the flexible display device of the present invention, the diameter of the first roller is equal to or greater than the diameter of the second roller.

[0020] In the flexible display device of the present invention, the first winding mechanism further includes a third roller, which is disposed between the first roller and the winding member. The axes of the third roller and the first roller are parallel. One end of the flexible display screen is connected to the winding member and extends out of the housing from the opening by passing around the third roller, the second roller and the first roller in sequence.

[0021] In the flexible display device of the present invention, the diameter of the third roller is less than or equal to the diameter of the second roller.

[0022] In the flexible display device of the present invention, the first stretching mechanism is a drawer, the drawer is provided with a first slider, the first housing is provided with a corresponding first slide rail, and the first slider slides along the first slide rail.

[0023] In the flexible display device of the present invention, the first slider is a slider bar or a pulley.

[0024] In the flexible display device of the present invention, the first slide rail is disposed on the bottom surface of the first housing.

[0025] In the flexible display device of the present invention, the first slide rail is disposed on the side of the first housing.

[0026] In the flexible display device of the present invention, a pull rod is also provided on the drawer.

[0027] In the flexible display device of the present invention, the flexible display device further includes a limiting plate, which is disposed on the bottom surface of the housing.

[0028] The beneficial effects of this invention are as follows: This invention provides a flexible display device, including a housing, at least one winding mechanism, a flexible display screen, and at least one stretching mechanism. The housing has an internal storage cavity, with an opening on at least one of its opposite sides. At least one winding mechanism is disposed within the storage cavity. The flexible display screen is disposed outside the housing, with one end extending through the opening and connected to the winding mechanism. At least one stretching mechanism is disposed within the storage cavity, and each stretching mechanism is connected to one winding mechanism. When the flexible display screen is in a first state, the stretching mechanism pulls the winding mechanism, moving it away from the housing to pull the flexible display screen out of the winding mechanism. When the flexible display screen is in a second state, the stretching mechanism pulls the winding mechanism, moving it towards the housing to retract the flexible display screen into the winding mechanism. By providing the stretching and winding mechanisms, the flexible display screen can be rolled up in the housing when not in use, resulting in a smaller overall size of the flexible display device, and the housing can protect the internal flexible display screen from damage. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments or prior art, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of a first structure of the flexible display device provided in an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of a second structure of the flexible display device provided in an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of a third structure of the flexible display device provided in an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of a fourth structure of the flexible display device provided in an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of a fifth structure of the flexible display device provided in an embodiment of the present invention;

[0035] Figure 6 This is a first exploded view of the fifth structure of the flexible display device provided in an embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the connection of the housing in the fifth structure of the flexible display device provided in the embodiment of the present invention;

[0037] Figure 8 A schematic diagram of the first connection between the tensioning mechanism and the housing in the fifth structure of the flexible display device provided in an embodiment of the present invention;

[0038] Figure 9 A schematic diagram of a second connection between the tensioning mechanism and the housing in a fifth structure of the flexible display device provided in an embodiment of the present invention;

[0039] Figure 10 This is a second exploded view of the fifth structure of the flexible display device provided in the embodiments of the present invention;

[0040] Figure 11 A schematic diagram of the first state of the fifth structure of the flexible display device provided in the embodiment of the present invention;

[0041] Figure 12 A schematic diagram of a flexible display screen in the first state of the fifth structure of the flexible display device provided in an embodiment of the present invention;

[0042] Figure 13 This is a schematic diagram of the second state of the fifth structure of the flexible display device provided in the embodiments of the present invention;

[0043] Figure 14 A schematic diagram of a flexible display screen in the second state of the fifth structure of the flexible display device provided in an embodiment of the present invention;

[0044] Figure 15 This is a schematic diagram of the sixth structure of the flexible display device provided in an embodiment of the present invention. Detailed Implementation

[0045] The following descriptions of the embodiments are with reference to the accompanying illustrations, illustrating specific embodiments in which the invention can be implemented. Directional terms used in this invention, such as [up], [down], [front], [back], [left], [right], [inner], [outer], [side], etc., are merely for reference to the accompanying illustrations. Therefore, the directional terms used are for illustrating and understanding the invention, and not for limiting the invention. In the figures, structurally similar units are denoted by the same reference numerals.

[0046] This invention provides a flexible display device to alleviate the technical problem of excessively large volume of the flexible display screen after it is rolled up in existing flexible display devices.

[0047] like Figure 1 The diagram shown is a first structural schematic of a flexible display device provided in an embodiment of the present invention. The flexible display device includes a housing 10, a winding mechanism, a flexible display screen 30, and a stretching mechanism.

[0048] The housing 10 has a storage cavity 100 inside, and at least one of the opposite sides of the storage cavity 100 has an opening.

[0049] At least one winding mechanism is provided inside the storage cavity 100.

[0050] The flexible display screen 30 is disposed outside the housing 10, with one end of the flexible display screen 30 extending into the opening and connected to the winding mechanism.

[0051] The first winding mechanism 21 pulls the flexible display screen 30 into or out of the housing 10 by winding and unwinding.

[0052] The storage cavity 100 is also equipped with at least one stretching mechanism. Each stretching mechanism is connected to a winding mechanism, that is, the number of stretching mechanisms is equal to the number of winding mechanisms, and each stretching mechanism is used in conjunction with a winding mechanism.

[0053] When the flexible display screen 30 is in the first state, the stretching mechanism pulls the winding mechanism to move in the direction away from the connecting member 13, pulling the flexible display screen 30 out of the winding mechanism; when the flexible display screen 30 is in the second state, the stretching mechanism pulls the winding mechanism to move in the direction toward the connecting member 13, winding the flexible display screen 30 into the winding mechanism.

[0054] The housing 10 can have one or two openings, and the number of winding and stretching mechanisms is equal to the number of openings. When the number of openings is different, the flexible display screen 30 has different storage methods.

[0055] In this embodiment, the number of openings is one. For example... Figure 1As shown, the housing 10 is typically a hollow cubic structure with an internal cavity 100. A first opening 101 is formed on the left side of the cavity 100, and the size of the first opening 101 is less than or equal to the size of the side at that location.

[0056] In one embodiment, no side is provided on the left side of the housing 10, where the first opening 101 is formed directly.

[0057] In one embodiment, a side surface is first provided on the left side of the housing 10, and then a hole is drilled in the side surface to form a first opening 101. The shape and size of the first opening 101 can be designed as needed.

[0058] A first winding mechanism 21 and a first stretching mechanism 41 are provided inside the storage cavity 100.

[0059] The first winding mechanism 21 includes a first winding member 210 and a first roller 211 with parallel axes that do not contact each other. The first roller 211 is disposed between the first winding member 210 and the first opening 101. The winding member 210 and the first roller 211 are fixed to the first tensioning mechanism 41. The first end 31 of the flexible display screen 30 is connected to the first winding member 210 and extends out of the housing 10 from the first opening 101, bypassing the first roller 211. The second end 32 of the flexible display screen 30 can be fixed to the right side of the housing 10, or a gap can be formed on the right side of the housing 10, through which the second end 32 extends into the interior of the housing 10 and is fixed.

[0060] The first winding member 210 is used to pull the flexible display screen 30 into or out of the housing 10. The first winding member 210 can retract automatically or retract under the action of external force.

[0061] In one embodiment, the first winding member 210 is a coil spring, which can continuously provide a large restoring force in a confined space and automatically pull the flexible display screen 30 into the housing 10 when it needs to be stored.

[0062] In one embodiment, the flexible display device further includes a driving member (not shown) that drives a first winding member 210 to pull the flexible display screen 30 out of or retract it from the housing 10. The driving member may be a structure such as a motor that provides driving force.

[0063] By setting the first roller 211, as the flexible display screen 30 moves from the first winding member 210 around the first roller 211 until it extends out of the housing 10, there is a certain distance between the first winding member 210 and the first roller 211. Therefore, only part of the flexible display screen 30 is wrapped around the first winding member 210 and the first roller 211 inside the housing 10, while the rest remains in a flat state. This winding method makes the degree of curling of the flexible display screen 30 small, and the force on the flexible display screen 30 is also small when it is retracted and extended, making it less prone to damage.

[0064] The first stretching mechanism 41 can move in the direction away from the housing 10 and towards the housing 10. Since the first stretching mechanism 41 and the first winding mechanism 21 are connected to each other and used in conjunction, when the flexible display screen 30 is in the first state, the first stretching mechanism 41 pulls the first winding mechanism 21 and moves in the direction away from the housing 10, pulling the flexible display screen 30 out of the first winding mechanism 21; when the flexible display screen is in the second state, the first stretching mechanism 41 pulls the first winding mechanism 21 and moves in the direction towards the housing 10, winding the flexible display screen 30 into the first winding mechanism 21.

[0065] During the pulling out and retracting process, the second end 32 of the flexible display screen 30 is always fixed on the other side of the housing 10. The first end 31 of the flexible display screen 30 is pulled out and retracted from the first winding mechanism 21 under the drive of the first stretching mechanism 41, thereby controlling the size of the display surface of the flexible display screen 30 outside the housing 10.

[0066] In one embodiment, the flexible display device further includes a support layer (not shown), on which the flexible display screen 30 is disposed. The area of ​​the flexible display screen 30 may be equal to or smaller than the area of ​​the support layer. When the flexible display screen 30 switches between a first state and a second state, the support layer can be used to protect the flexible display screen 30 and prevent it from being damaged during stretching.

[0067] The support layer is typically rectangular in structure, with good bending and curling properties and minimal stretching under tension. It is usually made of stainless steel or amorphous material. In one embodiment, the thickness of the support layer is 30 micrometers.

[0068] The flexible display device also includes an adhesive layer (not shown in the figure), which is disposed between the support layer and the flexible display screen 30. The flexible display screen 30 is fixed to the support layer by the adhesive layer. The adhesive layer can be made of optical adhesive, which bonds the flexible display screen 30 and the support layer after curing. However, the present invention is not limited to this, and other materials that can fix the flexible display screen 30 to the support layer can also be used to form the adhesive layer.

[0069] In one embodiment, the flexible display device further includes a limiting plate 50, which is disposed on the bottom surface of the housing 10 or on the side surface of the housing 10.

[0070] When the first stretching mechanism 41 slides toward the housing 10, in order to avoid excessive sliding distance, a limiting plate 50 is provided inside the housing 10 to ensure that the first stretching mechanism 41 is blocked after sliding to the appropriate position and cannot continue to slide, thereby protecting the first end 31 of the flexible display screen 30 from colliding with the right side of the housing 10 and causing damage.

[0071] By setting up a stretching mechanism and a winding mechanism, the flexible display screen 30 can be wound into the housing 10 when not in use and pulled out of the housing 10 when in use. This allows for flexible control of the display area of ​​the flexible display screen 30, and the overall size of the flexible display device is smaller after being stored. The housing 10 can also protect the internal flexible display screen 30 from damage.

[0072] like Figure 2 The diagram shown illustrates a second structural design of the flexible display device provided in an embodiment of the present invention. The flexible display device includes a housing 10, a winding mechanism, a flexible display screen 30, and a stretching mechanism.

[0073] and Figure 1 The difference in structure is that, in this embodiment, the first winding mechanism 21 further includes a second roller 212. The second roller 212 and the first roller 211 are disposed on both sides of the first winding member 210. The distance between the second roller 212 and the first opening 101 is greater than the distance between the first roller 211 and the first opening 101. The axes of the first roller 211 and the second roller 212 are parallel. The first end 31 of the flexible display screen 30 is fixed in the first winding member 210, then passes around the second roller 212, then around the first roller 211, and finally extends out from the first opening 101.

[0074] The diameter of the first roller 211 is equal to or greater than the diameter of the second roller 212, so that the flexible display screen 30 will not come into contact with the first winding member 210 on the path from the second roller 212 to the first roller 211, thus avoiding damage to the flexible display screen 30.

[0075] like Figure 3 The diagram shown is a third structural schematic of the flexible display device provided in an embodiment of the present invention. The flexible display device includes a housing 10, a winding mechanism, a flexible display screen 30, and a stretching mechanism.

[0076] and Figure 2The difference in structure is that, in this embodiment, the first winding mechanism 21 further includes a third roller 213, which is disposed between the first roller 211 and the first winding member 210. The axes of the third roller 213 and the first roller 211 are parallel. The first end 31 of the flexible display screen 30 is fixed in the first winding member 210, and then passes around the third roller 213, then around the second roller 212, then around the first roller 211, and finally extends out from the first opening 101.

[0077] In one embodiment, the axes of the first roller 211, the second roller 212, and the third roller 213 are on the same horizontal plane. The diameter of the third roller 213 is less than or equal to the diameter of the second roller 212, and the diameter of the second roller 212 is greater than the diameter of the first roller 211. In this way, the flexible display screen 30 will not come into contact with the first winding member 210 on the path from the third roller 213 to the second roller 212 and then to the first roller 211, thus avoiding damage to the flexible display screen 30.

[0078] like Figure 4 The diagram shown illustrates a fourth structural embodiment of the flexible display device provided by this invention. The flexible display device includes a housing 10, a winding mechanism, a flexible display screen 30, and a stretching mechanism.

[0079] In this embodiment, two openings are formed on the housing 10, such as Figure 2 As shown, a first opening 101 is formed on the left side of the storage cavity 100, and a second opening 102 is formed on the opposite right side. Inside the storage cavity 100, a first winding mechanism 21 and a first stretching mechanism 41 are provided on the left side, and a second winding mechanism 22 and a second stretching mechanism 42 are provided on the right side. The first stretching mechanism 41 is connected to the first winding mechanism 21, and the second stretching mechanism 42 is connected to the second winding mechanism 22.

[0080] The first end 31 of the flexible display screen 30 extends into the first opening 101 and is connected to the first winding mechanism 21. The second end 32 of the flexible display screen 30 extends into the second opening 102 and is connected to the second winding mechanism 22. Both the first stretching mechanism 41 and the second stretching mechanism 42 can move in directions away from the housing 10 and toward the housing 10.

[0081] When the flexible display screen 30 is in the first state, the first stretching mechanism 41 pulls the first winding mechanism 21, causing it to move in the direction away from the housing 10. Figure 2 The leftward movement of the flexible display screen 30 pulls it out of the first winding mechanism 21. Simultaneously, the second stretching mechanism 42 pulls the second winding mechanism 22, moving it in a direction away from the housing 10. Figure 2 Move to the right in the middle to pull the flexible display screen 30 out of the second winding mechanism 22;

[0082] When the flexible display screen is in the second state, the first stretching mechanism 41 pulls the first winding mechanism 21, moving it in the direction toward the housing 10, that is... Figure 2 The flexible display screen 30 moves to the right, retracting into the first winding mechanism 21. Simultaneously, the second stretching mechanism 42 pulls the second winding mechanism 22, moving it towards the housing 10. Figure 2 The flexible display screen 30 is moved to the left and then into the second winding mechanism 22.

[0083] The first end 31 of the flexible display screen 30 is pulled out and retracted from the first winding mechanism 21 under the drive of the first stretching mechanism 41, and the second end 32 of the flexible display screen 30 is pulled out and retracted from the second winding mechanism 22 under the drive of the second stretching mechanism 42, thereby controlling the size of the display surface of the flexible display screen 30 outside the housing 10.

[0084] In one embodiment, the flexible display device further includes a limiting plate 50, which is disposed on the bottom surface of the housing 10, or alternatively on the side surface of the housing 10. The limiting plate 50 is located between the first tensioning mechanism 41 and the second tensioning mechanism 42.

[0085] To prevent the first stretching mechanism 41 and the second stretching mechanism 42 from sliding too far when sliding towards the connecting member 13, a limiting plate 50 is provided between the first stretching mechanism 41 and the second stretching mechanism 42 to ensure that the first stretching mechanism 41 and the second stretching mechanism 42 are blocked after sliding to the appropriate position and cannot continue to slide, thereby protecting the two ends of the flexible display screen 30 from colliding and causing damage.

[0086] By setting up a stretching mechanism and a winding mechanism, the flexible display screen 30 can be wound into the housing 10 when not in use and pulled out of the housing 10 when in use. This allows for flexible control of the display area of ​​the flexible display screen 30, and the overall size of the flexible display device is smaller after being stored. The housing 10 can also protect the internal flexible display screen 30 from damage.

[0087] In this embodiment, the first winding mechanism 21 includes a first winding member 210, a first roller 211, a second roller 212, and a third roller 213, and the second winding mechanism 22 includes a second winding member 220, a fourth roller 221, a fifth roller 222, and a sixth roller 223. The second winding member 220 corresponds to the first winding member 210, the fourth roller 221 corresponds to the first roller 211, the fifth roller 222 corresponds to the second roller 212, and the sixth roller 223 corresponds to the third roller 213.

[0088] It should be noted that the number of rollers in the first winding mechanism 21 and the second winding mechanism 22 is not limited to this. Each winding mechanism may have only one roller, or it may have two, three, or more rollers. The number of rollers can be designed according to the size of the receiving cavity 100 in the housing 10. The arrangement of the rollers and the winding method of the flexible display screen 30 are related to... Figures 1 to 3 Similar to the Chinese.

[0089] The structures of the first winding mechanism 21 and the second winding mechanism 22 may be the same or different, but the principle of pulling out and retracting the flexible display screen 30 in the flexible display device is the same.

[0090] In one embodiment, the first winding mechanism 21 and the second winding mechanism 22 are identical and symmetrical about the center of the housing, meaning that the first winding mechanism 21 and the second winding mechanism 22 have the same shape, size, and structure. The specific description of the first winding mechanism 21 and the first stretching mechanism 41 in this invention also applies to the structure and working principle of the second winding mechanism 22 and the second stretching mechanism 42.

[0091] like Figure 5 The diagram shown is a fifth structural schematic of the flexible display device provided in an embodiment of the present invention. The flexible display device includes a housing 10, a winding mechanism, a flexible display screen 30, and a stretching mechanism.

[0092] and Figure 4 The difference in structure is that, in this embodiment, the housing 10 includes a first housing 11, a second housing 12, and a connecting member 13 connecting the first housing 11 and the second housing 12. A first storage cavity 110 is formed inside the first housing 11, and a second storage cavity 120 is formed inside the second housing 12. A first opening 101 is formed on the side of the first storage cavity 110 away from the connecting member 13, and a second opening 102 is formed on the side of the second storage cavity 120 away from the connecting member 13.

[0093] The first housing 11 and the second housing 12 are rotatable around the connecting member 13. In one embodiment, the first housing 11 and the second housing 12 are hinged together with the connecting member 13.

[0094] A first connecting hole 103 is formed on the first housing 11, a second connecting hole 104 is formed on the second housing 12, and a third connecting hole 105 and a fourth connecting hole 106 are formed on the connecting member 13. When the first housing 11 is connected to the connecting member 13, the first connecting hole 103 and the third connecting hole 105 coincide; when the second housing 12 is connected to the connecting member 13, the second connecting hole 104 and the third connecting hole 105 coincide. Partial areas of the first housing 11 and the connecting member 13 overlap, and partial areas of the second housing 12 and the connecting member 13 also overlap.

[0095] A first winding mechanism 21 and a first stretching mechanism 41 are provided in the first storage cavity 110, and a second winding mechanism 22 and a second stretching mechanism 42 are provided in the second storage cavity 120. The first stretching mechanism 41 is connected to the first winding mechanism 21, and the second stretching mechanism 42 is connected to the second winding mechanism 22.

[0096] The flexible display screen 30 is disposed outside the housing. The first end 31 of the flexible display screen 30 extends into the first opening 101 and is connected to the first winding mechanism 21. The second end 32 of the flexible display screen 30 extends into the second opening 102 and is connected to the second winding mechanism 22. Both the first stretching mechanism 41 and the second stretching mechanism 42 can move in directions away from the housing 10 and toward the housing 10.

[0097] When the flexible display screen 30 is in the first state, the first housing 11 and the second housing 12 are flattened around the connecting member 13, and the first stretching mechanism 41 pulls the first winding mechanism 21 to move in the direction away from the housing 10. Figure 2 The leftward movement of the flexible display screen 30 pulls it out of the first winding mechanism 21. Simultaneously, the second stretching mechanism 42 pulls the second winding mechanism 22, causing it to move away from the housing 10. Figure 2 Move to the right and pull the flexible display screen 30 out of the second winding mechanism 22.

[0098] When the flexible display screen 30 is in the second state, the first stretching mechanism 41 pulls the first winding mechanism 21, moving it in the direction toward the housing 10, that is... Figure 2 The flexible display screen 30 moves to the right, retracting into the first winding mechanism 21. Simultaneously, the second stretching mechanism 42 pulls the second winding mechanism 22, moving it towards the housing 10. Figure 2 The flexible display screen 30 is moved to the left and retracted into the second winding mechanism 22, and the first housing 11 and the second housing 12 are folded around the connecting member 13.

[0099] In this embodiment, the first winding mechanism 21 includes a first winding member 210, a first roller 211, a second roller 212, and a third roller 213, and the second winding mechanism 22 includes a second winding member 220, a fourth roller 221, a fifth roller 222, and a sixth roller 223. The second winding member 220 corresponds to the first winding member 210, the fourth roller 221 corresponds to the first roller 211, the fifth roller 222 corresponds to the second roller 212, and the sixth roller 223 corresponds to the third roller 213.

[0100] It should be noted that the number of rollers in the first winding mechanism 21 and the second winding mechanism 22 is not limited to this. Each winding mechanism may have only one roller, or it may have two, three, or more rollers. The number of rollers can be designed according to the size of the receiving cavity 100 in the housing 10. The arrangement of the rollers and the winding method of the flexible display screen 30 are related to... Figures 1 to 3 Similar to the Chinese.

[0101] The structures of the first winding mechanism 21 and the second winding mechanism 22 may be the same or different, but the principle of pulling out and retracting the flexible display screen 30 in the flexible display device is the same.

[0102] In one embodiment, the first winding mechanism 21 and the second winding mechanism 22 are identical and symmetrical about the center of the housing, meaning that the first winding mechanism 21 and the second winding mechanism 22 have the same shape, size, and structure. The specific description of the first winding mechanism 21 and the first stretching mechanism 41 in this invention also applies to the structure and working principle of the second winding mechanism 22 and the second stretching mechanism 42.

[0103] In one embodiment, the flexible display device further includes a limiting plate 50, which is disposed on the bottom surface of the housing 10, or alternatively on the side surface of the housing 10. The limiting plate 50 is located between the first tensioning mechanism 41 and the second tensioning mechanism 42.

[0104] To prevent the first stretching mechanism 41 and the second stretching mechanism 42 from sliding too far when sliding towards the connecting member 13, a limiting plate 50 is provided between the first stretching mechanism 41 and the second stretching mechanism 42 to ensure that the first stretching mechanism 41 and the second stretching mechanism 42 are blocked after sliding to the appropriate position and cannot continue to slide, thereby protecting the two ends of the flexible display screen 30 from colliding and causing damage.

[0105] like Figure 6 The image shown is a first exploded view of the fifth structure of the flexible display device provided in an embodiment of the present invention. The following is a combined view... Figures 5 to 15 The structure of each part in the flexible display device is described in detail.

[0106] The first housing 11 is typically a hollow cubic structure with an internal first receiving cavity 110, including a first top surface 111 and a first bottom surface 112, and a first side surface 113 and a second side surface 114 connected to the first top surface 111 and the first bottom surface 112. A first opening 101 is formed on the side of the first housing 11 away from the connecting member 13, and the size of the first opening 101 is less than or equal to the size of the side surface at that location. The side surface of the first housing 11 near the connecting member 13 may or may not be provided.

[0107] In one embodiment, the first housing 11 is not provided with a side surface on the side away from the connecting member 13, where the first opening 101 is directly formed.

[0108] In one embodiment, a side surface is first provided on the side of the first housing 11 away from the connecting member 13, and then a hole is drilled in the side surface to form a first opening 101. The shape and size of the first opening 101 can be designed as needed.

[0109] In one embodiment, the first bottom surface 112 may not be provided, that is, the first housing 11 only includes the first top surface 111, the first side surface 113 and the second side surface 114.

[0110] A first connecting hole 103 is provided on the first side 113 of the first housing 11, and extends through to the second side 114.

[0111] The second housing 12 is typically a hollow cubic structure with an internal second receiving cavity 120, including a second top surface 121, a second bottom surface 122, and a third side surface 123 and a fourth side surface 124 connected to the second top surface 121 and the second bottom surface 122. A second opening 102 is formed on the side of the second housing 12 away from the connecting member 13, and the size of the second opening 102 is less than or equal to the size of that side surface. The side surface of the second housing 12 near the connecting member 13 may or may not be provided.

[0112] In one embodiment, the second housing 12 is not provided with a side surface on the side away from the connecting member 13, where the second opening 102 is formed directly.

[0113] In one embodiment, a side surface is first provided on the side of the second housing 12 away from the connecting member 13, and then a hole is drilled in the side surface to form a second opening 102. The shape and size of the second opening 102 can be designed as needed.

[0114] In one embodiment, the second bottom surface 122 may not be provided, that is, the second housing 12 only includes the second top surface 121, the third side surface 123 and the fourth side surface 124.

[0115] Similarly, a second connecting hole 104 is also provided on the third side 123 of the second housing 12, extending through to the fourth side 124.

[0116] The connecting member 13 is used to connect the first housing 11 and the second housing 12. The first housing 11 and the second housing 12 can rotate around the connecting member 13, and can be flattened or folded. In this embodiment, the connecting member 13 has a U-shaped structure, including a connecting bottom surface 132, a first connecting side surface 133, and a second connecting side surface 134. The first connecting side surface 133 is provided with a third connecting hole 105 and a fourth connecting hole 106, which extend to the second connecting side surface 134.

[0117] The connecting member 13 connects the first housing 11 and the second housing 12 together, and the specific connection structure is as follows: Figure 7 As shown.

[0118] like Figure 7 As shown in Figure a, the first connecting hole 103 of the first housing 11 is aligned with the third connecting hole 105 of the connecting member 13, and the second connecting hole 104 of the second housing 12 is aligned with the fourth connecting hole 106 of the connecting member 13. The aligned holes can be fixed by a hinge member (not shown in the figure), such as a bolt. After fixing, the first housing 11 can rotate clockwise around the connecting member 13, and the second housing 12 can rotate counterclockwise around the connecting member 13. At this time, the first housing 11 and the connecting member 13 have a partially overlapping area, and the second housing 12 and the connecting member 13 also have a partially overlapping area.

[0119] When the flexible display screen 30 is in the first state, that is, when the flexible display screen 30 needs to display, the first housing 11 and the second housing 12 are flattened around the connecting member 13. When flattened, the first top surface 111 of the first housing 11 and the second top surface 121 of the second housing 112 are on the same horizontal plane.

[0120] like Figure 7 As shown in b, when the flexible display screen 30 is in the second state, that is, when the flexible display screen 30 does not need to display but needs to be stored, the first shell 11 and the second shell 12 are folded around the connecting member 13. That is, the first shell 11 rotates 90 degrees clockwise around the connecting member 13, and the second shell 12 rotates 90 degrees counterclockwise around the connecting member 13 until the first top surface 111 of the first shell 11 and the second top surface 121 of the second shell 12 are parallel.

[0121] Of course, the structure of the connecting member 13 is not limited to this. Other structures that can connect the first housing 11 and the second housing 12 and ensure that the first housing 11 and the second housing 12 can be rotated, flattened and folded can also be used as the connecting member 13 of the present invention.

[0122] exist Figure 5 and Figure 6 In this embodiment, the flexible display device includes a first stretching mechanism 41 and a second stretching mechanism 42. The first stretching mechanism 41 is a drawer, which is placed within a first receiving cavity 110 and can be pushed in and pulled out of the first housing 11 via a first opening 101. A first slider 401 is provided on the first stretching mechanism 41, and a corresponding first slide rail 402 is provided on the first housing 11. The first slider 404 slides along the first slide rail 402.

[0123] like Figure 8As shown, the height of the first tensioning mechanism 41 is less than the height of the first housing 11. The first tensioning mechanism 41 is mounted in the first slide rail 402 of the first housing 11 via a first slider 401. The first slider 401 can be a slider, a pulley, or other components that can slide in the first slide rail 402. The first tensioning mechanism 41 can move along the first slide rail 402 in a direction away from the connecting member 13 and in a direction toward the connecting member 13.

[0124] In one embodiment, the first slider 401 is disposed under the third bottom surface 412 of the first tensioning mechanism 41. Only one first slider 401 may be disposed, or two or more first sliders 401 may be disposed. The first slide rail 402 is disposed on the first bottom surface 112 of the first housing 11. The number and position of the first slide rail 402 correspond to the first slider 401.

[0125] In one embodiment, the first slider 401 is disposed on the fifth side 413 or the sixth side 414 of the first tensioning mechanism 41. Only one first slider 401 may be disposed, or two or more first sliders 401 may be disposed. The first slide rail 402 is disposed on the first side 113 or the second side 114 of the first housing 11. The number and position of the first slide rail 402 correspond to the first slider 401.

[0126] In one embodiment, a first slider 401 is provided on both the fifth side 413 and the sixth side 414 of the first tensioning mechanism 41. Each side may have only one first slider 401, or two or more first sliders 401. A first slide rail 402 is correspondingly provided on the first side 113 and the second side 114 of the first housing 11. The number and position of the first slide rail 402 correspond to the first slider 401.

[0127] In one embodiment, the first tensioning mechanism 41 is further provided with a pull rod (not shown in the figure), which can be pushed or pulled to perform the operation when the first tensioning mechanism 41 is pushed or pulled out of the first housing 11.

[0128] Similarly, the height of the second tensioning mechanism 42 is less than the height of the second housing 12. The second tensioning mechanism 42 is mounted in the second slide rail 404 of the second housing 12 via a second slider 403. The second slider 403 can be a slide bar, a pulley, or other component that can slide in the second slide rail 404. The second tensioning mechanism 42 can move along the second slide rail 404 in a direction away from the connecting member 13 and in a direction toward the connecting member 13.

[0129] In one embodiment, the second slider 403 is disposed under the fourth bottom surface 422 of the second tensioning mechanism 42. Only one second slider 403 may be disposed, or two or more second sliders 403 may be disposed. The second slide rail 404 is disposed on the second bottom surface 122 of the second housing 12. The number and position of the second slide rail 404 correspond to the second slider 403.

[0130] In one embodiment, the second slider 403 is disposed on the seventh side 423 or the eighth side 424 of the second tensioning mechanism 42. Only one second slider 403 may be disposed, or two or more second sliders 403 may be disposed. The second slide rail 404 is disposed on the third side 123 or the fourth side 124 of the second housing 12. The number and position of the second slide rail 404 correspond to the second slider 403.

[0131] In one embodiment, a second slider 403 is provided on both the seventh side 423 and the eighth side 424 of the second tensioning mechanism 42. Each side may have only one second slider 403, or two or more second sliders 403. The second slide rail 404 is correspondingly provided on the third side 123 and the fourth side 124 of the second housing 12. The number and position of the second slide rail 404 correspond to the second slider 403.

[0132] In one embodiment, the second stretching mechanism 42 is further provided with a pull rod (not shown in the figure), which can be pushed or pulled to perform the operation when the second stretching mechanism 42 is pushed or pulled out of the second housing 12.

[0133] Figure 8 The connection diagram between the tensioning mechanism and the housing is not a structural schematic diagram; the actual connection diagram is as follows: Figure 9 As shown. The first stretching mechanism 41 on the left is provided with a first slider 401, and the first housing 11 contains a first slide rail 402. The second stretching mechanism 42 on the right is provided with a second slider 403, and the second housing 12 contains a second slide rail 404.

[0134] like Figure 9 As shown in Figure a, when the flexible display screen 30 needs to be pulled out, the first stretching mechanism 41 slides to the left along the first slide rail 402, and the first slider 401 gradually slides out of the first slide rail 402. The second stretching mechanism 42 slides to the right along the second slide rail 404, and the second slider 403 gradually slides out of the second slide rail 404. The first stretching mechanism 41 and the second stretching mechanism 42 drive the flexible display screen 30 to be pulled out, thereby increasing the display area of ​​the flexible display screen 30.

[0135] like Figure 9As shown in b, when the flexible display screen 30 needs to be retracted, the first stretching mechanism 41 slides to the right along the first slide rail 402, and the first slider 401 gradually slides into the first slide rail 402. The second stretching mechanism 42 slides to the left along the second slide rail 404, and the second slider 403 gradually slides into the second slide rail 404. The first stretching mechanism 41 and the second stretching mechanism 42 drive the flexible display screen 30 to retract.

[0136] like Figure 6 As shown, the first winding mechanism 21 is fixed in the first stretching mechanism 41. Specifically, the first roller 211, the second roller 212, and the third roller 213 are fixed in the first stretching mechanism 41. Since the first stretching mechanism 41 is a drawer structure, and the first roller 211, the second roller 212, and the third roller 213 are cylindrical structures, the two end faces of each roller can be fixed to the fifth side 413 and the sixth side 414 of the first stretching mechanism 41, respectively.

[0137] The second winding mechanism 22 is fixed within the second stretching mechanism 42. Specifically, the fourth roller 221, the fifth roller 222, and the sixth roller 223 are fixed within the second stretching mechanism 42. Since the second stretching mechanism 42 is a drawer structure, and the fourth roller 221, the fifth roller 222, and the sixth roller 223 are cylindrical structures, the two end faces of each roller can be fixed to the seventh side 423 and the eighth side 424 of the second stretching mechanism 42, respectively.

[0138] Figure 6 The exploded view of the fifth structure of the flexible display device shown is only a structural schematic diagram. The actual exploded views of the various components of the flexible display device are as follows: Figure 10 As shown, the first housing 11 includes a first fixing member 130. The first fixing member 130 can be disposed on the side of the first housing 11 or can be formed directly from the side, that is, the first fixing member 130 itself constitutes the side of the first housing 11.

[0139] The first fixing member 130 has a first fixing hole 107 and a second fixing hole 108 formed thereon, wherein the first fixing hole 107 and the second fixing hole 108 are formed thereon. Figure 6 The first connecting hole 103 corresponds to the first fixing hole 107, which is aligned with and hinged to the third connecting hole 105 on the connecting member 13, allowing the first housing 11 to rotate around the connecting member 13. The second fixing hole 108 can be used to connect the first slide rail 402, and the first slider 401 on the first tensioning mechanism 41 can slide back and forth along the first slide rail 402. Figure 10The right side shows the internal structure of the second slide rail 404, which is located on the side of the second housing 12. The second slide rail 404 can be fixed by a second fixing member (not shown). The second fixing member has the same structure and principle as the first fixing member 130. The fixing hole on the second fixing member is aligned with the fourth connecting hole 106 on the connecting member and hinged together, allowing the second housing 12 to rotate around the connecting member 13. The second slider 403 on the second tensioning mechanism 42 slides back and forth along the second slide rail 404. A limit block 150 is also provided on the second slide rail 404. When the second slider 403 slides past the position of the limit block 150, the limit block 150 provides resistance, causing the second tensioning mechanism 42 to stop sliding at that position. The number and spacing of the limit blocks 150 can be set as needed.

[0140] like Figure 11 The diagram shown is a schematic diagram of the first state of the fifth structure of the flexible display device provided in the embodiment of the present invention.

[0141] When the flexible display screen 30 is in the first state, that is, when the flexible display screen 30 needs to display, firstly, the first housing 11 and the second housing 12 are flattened around the connecting member 13. When flattened, the first top surface 111 of the first housing 11 and the second top surface 121 of the second housing 112 are on the same horizontal plane, and the flexible display screen 30 is laid flat on the first top surface 111 of the first housing 11 and the second top surface 121 of the second housing 112.

[0142] Then, the first stretching mechanism 41 slides in the direction away from the connecting member 13, causing the first winding mechanism 21 fixed on it to also slide in the direction away from the connecting member 13. At this time, the first winding member 210 gradually releases the flexible display screen 30 wound in it outward. The distance that the first stretching mechanism 41 slides in the direction away from the connecting member 13 is the length that the first end 31 of the flexible display screen 30 is pulled out.

[0143] At the same time, the second stretching mechanism 42 also slides in the direction away from the connecting member 13, causing the second winding mechanism 22 fixed on it to also slide in the direction away from the connecting member 13. At this time, the second winding member 220 gradually releases the flexible display screen 30 wound in it outward. The distance that the second stretching mechanism 42 slides in the direction away from the connecting member 13 is the length that the second end 32 of the flexible display screen 30 is pulled out.

[0144] like Figure 12 The diagram shown is a schematic representation of the flexible display screen in the first state of the fifth structure of the flexible display device provided in an embodiment of the present invention. (In conjunction with...) Figure 11It can be seen that after the first housing 11 and the second housing 12 are flattened, and the first stretching mechanism 41 and the second stretching mechanism 42 are stretched, the final display area length of the flexible display screen 30 is approximately equal to the sum of the length of the first top surface 111 of the first housing 11, the length of the second top surface 121 of the second housing 12, the distance that the first stretching mechanism 41 slides in the direction away from the connecting member 13, and the distance that the second stretching mechanism 42 slides in the direction away from the connecting member 13. The flexible display screen 30 exhibits a larger display area.

[0145] In this way, a larger screen can be displayed when the flexible display 30 needs to display, enhancing the display effect and user experience.

[0146] like Figure 13 The diagram shown is a schematic diagram of the second state of the fifth structure of the flexible display device provided in the embodiment of the present invention.

[0147] When the flexible display screen 30 is in the second state, that is, when the flexible display screen 30 does not need to be displayed but needs to be stored, firstly, the first stretching mechanism 41 slides along the direction toward the connecting member 13, which drives the first winding mechanism 21 fixed on it to also slide along the direction toward the connecting member 13. At this time, the first winding member 210 gradually rolls the excess flexible display screen 30 inward. The distance that the first stretching mechanism 41 slides along the direction toward the connecting member 13 is the length of the first end 31 of the flexible display screen 30 that is rolled up. When the first stretching mechanism 41 is completely pushed into the first housing 11, the flexible display screen 30 is only provided on the first top surface 111 of the first housing 11. The rest of the flexible display screen 30 is rolled up into the first winding mechanism 21 and hidden in the first stretching mechanism 41.

[0148] Simultaneously, the second stretching mechanism 42 also slides along the direction toward the connecting member 13, causing the second winding mechanism 22 fixed on it to also slide along the direction toward the connecting member 13. At this time, the second winding member 220 gradually rolls the excess flexible display screen 30 inward. The distance that the second stretching mechanism 42 slides along the direction toward the connecting member 13 is the length of the second end 32 of the flexible display screen 30 that is rolled up. When the second stretching mechanism 42 is completely pushed into the second housing 12, the flexible display screen 30 is only provided on the second top surface 121 of the second housing 12. The rest of the flexible display screen 30 is rolled up into the second winding mechanism 22 and hidden in the second stretching mechanism 42.

[0149] Then, the first housing 11 and the second housing 12 are folded around the connecting member 13, that is, the first housing 11 is rotated 90 degrees clockwise around the connecting member 13, and the second housing 12 is rotated 90 degrees counterclockwise around the connecting member 13, until the first top surface 111 of the first housing 11 and the second top surface 121 of the second housing 12 are parallel. At this time, the flexible display screen 30, which is laid flat on the first top surface 111 of the first housing 11 and the second top surface 121 of the second housing 12, is folded inward into the gap formed by the first top surface 111 of the first housing 11 and the second top surface 121 of the second housing 12 as the first housing 11 and the second housing 12 are rotated and folded.

[0150] like Figure 14 The diagram shown is a schematic representation of the flexible display screen in the second state of the fifth structure of the flexible display device provided in an embodiment of the present invention. (In conjunction with...) Figure 13 It can be seen that after the retraction of the first stretching mechanism 41 and the second stretching mechanism 42, and the folding of the first housing 11 and the second housing 12, the display area of ​​the flexible display screen 30 can be folded inward and stored. This method can not only make the entire flexible display device smaller and more portable, but also the first housing 11 and the second housing 12 can better protect the internal flexible display screen 30, making it less susceptible to damage.

[0151] like Figure 15 As shown, the flexible display device also includes an elastic member 160, which passes through the first housing 11 and the second housing 12. As shown in 15a, when the first housing 11 and the second housing 12 are flattened, the elastic member 160 is parallel to the top surfaces of the first housing 11 and the second housing 12. As shown in 15b, when the first housing 11 and the second housing 12 are folded, the elastic member 160 also folds. At the connection between the first housing 11 and the second housing 12, the elastic member 160 has an arc-shaped structure. This arc-shaped structure provides a locking force, which keeps the first housing 11 and the second housing 12 in a folded state. They will not separate when no external force is applied, and external impurities will not enter, protecting the flexible display screen 30 from damage. When it is necessary to flatten the first housing 11 and the second housing 12 again, a certain external force needs to be applied to separate the first housing 11 and the second housing 12, and then the elastic member 160 also returns from the bent state to the flattened state.

[0152] In one embodiment, the flexible display device further includes a support layer (not shown), on which the flexible display screen 30 is disposed. The area of ​​the flexible display screen 30 may be equal to or smaller than the area of ​​the support layer. When the flexible display screen 30 switches between a first state and a second state, the support layer can be used to protect the flexible display screen 30 and prevent it from being damaged during stretching.

[0153] The support layer is typically rectangular in structure, with good bending and curling properties and minimal stretching under tension. It is usually made of stainless steel or amorphous material. In one embodiment, the thickness of the support layer is 30 micrometers.

[0154] The flexible display device also includes an adhesive layer (not shown in the figure), which is disposed between the support layer and the flexible display screen 30. The flexible display screen 30 is fixed to the support layer by the adhesive layer. The adhesive layer can be made of optical adhesive, which bonds the flexible display screen 30 and the support layer after curing. However, the present invention is not limited to this, and other materials that can fix the flexible display screen 30 to the support layer can also be used to form the adhesive layer.

[0155] By setting up a stretching mechanism, a winding mechanism, and a connecting member 13, the flexible display screen 30 can be rolled up in the housing 10 and folded in half when not in use, and pulled out of the housing 10 and flattened when in use. This allows for flexible control of the display area of ​​the flexible display screen 30, and the entire flexible display device is smaller after being stored. The housing 10 can also protect the internal flexible display screen 30 from damage.

[0156] As can be seen from the above embodiments:

[0157] This invention provides a flexible display device, comprising a housing, at least one winding mechanism, a flexible display screen, and at least one stretching mechanism. The housing has an internal storage cavity with an opening on at least one of its opposite sides. The at least one winding mechanism is disposed within the storage cavity. The flexible display screen is disposed outside the housing, with one end extending through the opening and connected to the winding mechanism. At least one stretching mechanism is disposed within the storage cavity, each stretching mechanism connected to a winding mechanism. When the flexible display screen is in a first state, the stretching mechanism pulls the winding mechanism, moving it away from the housing to pull the flexible display screen out of the winding mechanism. When the flexible display screen is in a second state, the stretching mechanism pulls the winding mechanism, moving it towards the housing to retract the flexible display screen into the winding mechanism. By incorporating the stretching and winding mechanisms, the flexible display screen can be wound into the housing when not in use, resulting in a smaller overall size of the flexible display device, and the housing can protect the internal flexible display screen from damage.

[0158] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A flexible display device, characterized in that, include: A housing, wherein a storage cavity is formed inside the housing, and an opening is formed on at least one of the opposite sides of the storage cavity; At least one winding mechanism is disposed within the receiving cavity; A flexible display screen is disposed outside the housing, with one end of the flexible display screen extending into the opening and connected to the winding mechanism; At least one stretching mechanism is disposed within the receiving cavity, and each stretching mechanism is connected to one of the winding mechanisms. The housing includes a first housing, a second housing, and a connecting member connecting the first housing and the second housing; the storage cavity is disposed within the first housing and / or the second housing. When the flexible display screen is in the first state, the first housing and the second housing are flattened around the connecting member, and the stretching mechanism pulls the winding mechanism to move in the direction away from the housing, pulling the flexible display screen out of the winding mechanism; When the flexible display screen is in the second state, the stretching mechanism pulls the winding mechanism to move in the direction toward the housing, and the flexible display screen is wound into the winding mechanism, and the first housing and the second housing are folded around the connecting member.

2. The flexible display device as described in claim 1, characterized in that, The first housing, the second housing, and the connecting member are hinged together.

3. The flexible display device as described in claim 2, characterized in that, A first connecting hole is formed on the first housing, a second connecting hole is formed on the second housing, and a third connecting hole and a fourth connecting hole are formed on the connecting member; The first connecting hole and the third connecting hole are arranged to overlap, and the second connecting hole and the fourth connecting hole are arranged to overlap.

4. The flexible display device as described in claim 3, characterized in that, The first housing includes a first top surface, a first side surface and a second side surface connected to and disposed opposite to the first top surface; the first connecting hole is disposed on the first side surface and extends through to the second side surface; The second housing includes a second top surface, a third side surface and a fourth side surface connected to and opposite to the second top surface; the second connecting hole is disposed on the third side surface and extends through to the fourth side surface; The connecting member includes a bottom surface, a first connecting side surface and a second connecting side surface connected to and opposite to the bottom surface, and the third connecting hole and the fourth connecting hole are disposed on the first connecting side surface and extend through to the second connecting side surface.

5. The flexible display device as described in claim 4, characterized in that, When the flexible display screen is in the first state, the first housing and the second housing are flattened around the connecting member, and the first top surface of the first housing and the second top surface of the second housing are on the same horizontal plane when flattened. When the flexible display screen is in the second state, the first housing and the second housing are folded around the connecting member until the first top surface of the first housing and the second top surface of the second housing are parallel.

6. The flexible display device according to any one of claims 3 to 5, characterized in that, The first housing has a first storage cavity inside, and the second housing has a second storage cavity inside; the first storage cavity has a first opening on the side away from the connecting member, and the second storage cavity has a second opening on the side away from the connecting member. The at least one winding mechanism includes a first winding mechanism disposed in the first storage cavity and a second winding mechanism disposed in the second storage cavity; the at least one stretching mechanism includes a first stretching mechanism disposed in the first storage cavity and a second stretching mechanism disposed in the second storage cavity; the first stretching mechanism is connected to the first winding mechanism, and the second stretching mechanism is connected to the second winding mechanism; The flexible display screen includes a first end and a second end disposed opposite to each other; the first end of the flexible display screen extends into the first opening and is connected to the first winding mechanism; the second end of the flexible display screen extends into the second opening and is connected to the second winding mechanism.

7. The flexible display device as claimed in claim 6, characterized in that, When the flexible display screen is in the first state, the first housing and the second housing are flattened around the connecting member. The first stretching mechanism pulls the first winding mechanism to move in the direction away from the housing, pulling the flexible display screen out of the first winding mechanism. At the same time, the second stretching mechanism pulls the second winding mechanism to move in the direction away from the housing, pulling the flexible display screen out of the second winding mechanism. When the flexible display screen is in the second state, the first stretching mechanism pulls the first winding mechanism to move in the direction toward the housing, and the flexible display screen is wound into the first winding mechanism. At the same time, the second stretching mechanism pulls the second winding mechanism to move in the direction toward the housing, and the flexible display screen is wound into the second winding mechanism. The first housing and the second housing are folded around the connecting member.

8. The flexible display device as described in claim 6, characterized in that, The flexible display device further includes a limiting plate located within the housing, the limiting plate being situated between the first stretching mechanism and the second stretching mechanism.

9. The flexible display device as claimed in claim 6, characterized in that, The first stretching mechanism is provided with at least one first slider, and the first housing is provided with at least one first slide rail, wherein the at least one first slider and the at least one first slide rail are slidably connected in a one-to-one correspondence; the second stretching mechanism is provided with at least one second slider, and the second housing is provided with at least one second slide rail, wherein the at least one second slider and the at least one second slide rail are slidably connected in a one-to-one correspondence; The first slide rail is disposed on the bottom or side of the first housing, and the second slide rail is disposed on the bottom or side of the second housing.

10. The flexible display device as claimed in claim 9, characterized in that, The first slide rail is disposed on the side of the first housing, and the second slide rail is disposed on the side of the second housing; The first housing further includes a first fixing member located on the side of the first housing. The first fixing member has a first fixing hole and a second fixing hole formed on it. The first fixing hole corresponds to the first connecting hole and is aligned with and hinged to the third connecting hole on the connecting member. The second fixing hole is connected to the first slide rail. The second housing also includes a second fixing member, which has the same structure as the first fixing member. One of the fixing holes on the second fixing member is aligned with and hinged to the fourth connecting hole on the connector, and the other fixing hole on the second fixing member is connected to the second slide rail.

11. The flexible display device as claimed in claim 9, characterized in that, The first stretching mechanism is a drawer, which is disposed in the first storage cavity; the second stretching mechanism is a drawer, which is disposed in the second storage cavity; the first winding mechanism is fixed in the first stretching mechanism, and the second winding mechanism is fixed in the second stretching mechanism.

12. The flexible display device as claimed in claim 1, characterized in that, The flexible display device further includes an elastic member that penetrates through the first housing and the second housing; at least a portion of the flexible display screen is located on the side of the elastic member away from the housing. When the first housing and the second housing are unfolded, the elastic member is arranged parallel to the top surface of the first housing and the second housing; when the first housing and the second housing are folded, the elastic member is also folded and arranged between the first housing and the second housing. At the connection between the first housing and the second housing, the elastic member has an arc-shaped structure, and the arc-shaped structure provides a locking force to keep the first housing and the second housing in the folded state.

13. The flexible display device as claimed in claim 1, characterized in that, The winding mechanism includes a winding member with parallel axes that do not contact each other, a first roller, and a second roller. The first roller is disposed between the winding member and the opening. The second roller and the first roller are disposed on both sides of the winding member. The distance between the second roller and the opening is greater than the distance between the first roller and the opening. The winding member is fixed to the tensioning mechanism. The diameter of the first roller is equal to or greater than the diameter of the second roller. One end of the flexible display screen is connected to the winding member and extends out of the housing from the opening, passing sequentially around the second roller and the first roller. The winding member is used to pull the flexible display screen into or out of the housing.

14. The flexible display device as claimed in claim 13, characterized in that, The winding mechanism further includes a third roller, which is disposed between the first roller and the winding member. The axes of the third roller and the first roller are parallel. One end of the flexible display screen is connected to the winding member and extends out of the housing from the opening by passing around the third roller, the second roller and the first roller in sequence. The diameter of the third roller is less than or equal to the diameter of the second roller.

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