Display device and curvature adjusting structure of flexible display screen

Abstract

The invention provides a display device and a curvature adjusting structure of a flexible display screen. The display device comprises a flexible display screen and a curvature adjusting structure. The flexible display screen has a backplane. The curvature adjusting structure comprises a linkage assembly, a first swing arm and a second swing arm. The linkage assembly is connected to the back plate. The first swing arm is provided with a first pivoting end and a first swing end, the first pivoting end is pivoted to the back plate and connected with one side of the linkage assembly, and the first swing end is connected with the back plate and adjacent to the first side of the back plate. The second swing arm is provided with a second pivoting end and a second swing end, the second pivoting end is pivoted to the back plate and connected with the other side of the linkage assembly, and the second swing end is connected with the back plate and adjacent to the second side of the back plate. When the linkage assembly is actuated, the first swing arm and the second swing arm swing synchronously, so that the first swing end and the second swing end simultaneously drive the first side and the second side of the back plate to move so as to change the curvature of the flexible display screen.

Description

Technical Field

[0001] The present invention relates to a display device, and in particular to a display device in which a flexible display screen can synchronously adjust the curvatures of two sides of the flexible display screen through a curvature adjustment structure. Background Art

[0002] Generally, screen panels are available in two forms: curved and flat. Curved screen panels are manufactured according to a preset curvature during the process so that each curved screen panel can achieve a consistent curvature. Therefore, currently curved screen panels can only provide fixed curvature viewing. However, with the increase in electronic working methods, users have different requirements for screen panels. For example, when processing general text tasks or browsing documents, a flat screen panel is more suitable. When playing audio and video or playing games, using a curved screen panel can provide an immersive feeling. If you have both text tasks and game needs, you can only accommodate a screen panel with a single curvature. Summary of the invention

[0003] The object of the present invention is to provide a display device and a curvature adjustment structure of a flexible display screen to solve at least one of the above problems.

[0004] In view of this, in some embodiments, a display device includes a flexible display screen and a curvature adjustment structure. The flexible display screen has a back plate, and the back plate has a first side and a second side opposite to each other. The curvature adjustment structure includes a linkage component, a first swing arm, and a second swing arm. The linkage component is connected to the back plate and is located between the first side and the second side. The first swing arm is located between the first side and the linkage component, and the first swing arm has a first pivot end and a first swing end, the first pivot end is pivoted on the back plate and connected to one side of the linkage component, and the first swing end is connected to the back plate and adjacent to the first side. The second swing arm is located between the second side and the linkage component, and the second swing arm has a second pivot end and a second swing end, the second pivot end is pivoted on the back plate and connected to the other side of the linkage component, and the second swing end is connected to the back plate and adjacent to the second side. When the linkage component is actuated, the first swing arm and the second swing arm swing synchronously, so that the first swing end and the second swing end simultaneously drive the first side and the second side of the back plate to move, thereby changing the curvature of the flexible display screen.

[0005] In some embodiments, the linkage assembly includes a fixed plate and a stopper. The fixed plate has a first wall surface and a second wall surface, the first wall surface has a first sliding hole, and the second wall surface has a second sliding hole. The stopper is slidably pivoted to the first sliding hole and the second sliding hole, respectively, and the two sides of the stopper have a first rack and a second rack, respectively, the first pivot end is engaged with the first rack, and the second pivot end is engaged with the second rack.

[0006] In some embodiments, the linkage assembly includes a fixed plate and a gear set. The fixed plate has a first wall surface and a second wall surface. The gear set is pivotally disposed between the first wall surface and the second wall surface, the first pivot end is connected to one side of the gear set, and the second pivot end is connected to the other side of the gear set. When the linkage assembly is actuated, the gear set synchronously links the first swing arm and the second swing arm.

[0007] In some embodiments, the linkage assembly includes a fixed plate and a connecting rod assembly. The fixed plate has a first wall surface and a second wall surface. The connecting rod assembly is pivotally disposed between the first wall surface and the second wall surface, the first pivot end is connected to one side of the connecting rod assembly, and the second pivot end is connected to the other side of the connecting rod assembly. When the linkage assembly is actuated, the connecting rod assembly synchronously links the first swing arm and the second swing arm.

[0008] In some embodiments, the display device further comprises a first slide rail and a second slide rail. The first slide rail is fixed to the first side, and the first swing end is pivotally connected to the first slide rail. The second slide rail is fixed to the second side, and the second swing end is pivotally connected to the second slide rail. When the linkage assembly is actuated, the first swing end is limited by the first slide rail, and the second swing end is limited by the second slide rail.

[0009] In some embodiments, the display device further includes a connecting rod and a friction plate, the first swing end is pivotally connected to the first slide rail by the connecting rod, and the friction plate is located between the head of the connecting rod and the first slide rail.

[0010] In some embodiments, the first swing arm and the second swing arm are of equal length and extend to the first side and the second side respectively.

[0011] In some embodiments, there is a central axis between the first side and the second side, and when the first swing arm and the second swing arm swing synchronously, the flexible display screen generates the same curvature change on opposite sides of the central axis.

[0012] In some embodiments, the first swing arm has a first branch segment and a second branch segment, the first branch segment is adjacent to the linkage assembly, the second branch segment is adjacent to the first side, and the length of the first branch segment is less than half of the length of the second branch segment.

[0013] In some embodiments, an edge of the first side and an edge of the second side are respectively connected to a force bearing block.

[0014] In some embodiments, a curvature adjustment structure of a flexible display screen is provided, which is used to change the curvature of the flexible display screen. The curvature adjustment structure includes a linkage component, a first swing arm, and a second swing arm. The first swing arm has a first pivot end and a first swing end, the first pivot end is connected to one side of the linkage component, and the first swing end is used to connect to the flexible display screen. The second swing arm has a second pivot end and a second swing end, the second pivot end is connected to the other side of the linkage component, and the second swing end is used to connect to the flexible display screen. When the linkage component is actuated, the first swing arm and the second swing arm swing synchronously, so that the first swing end and the second swing end are actuated simultaneously.

[0015] In summary, a flexible display screen and its curvature adjustment structure are provided according to some embodiments. The curvature adjustment structure is connected to the back plate of the flexible display screen. When any side of the flexible display screen is adjusted, the linkage assembly can synchronously actuate the first swing arm and the second swing arm so that the first swing arm and the second swing arm reach the same swing amplitude. In addition, during the swinging process, the first swing arm and the second swing arm can synchronously push both sides of the flexible display screen so that both sides of the flexible display screen are bent to the same curvature. Thus, under different usage requirements of the flexible display screen, the operator can adjust the curvature of both sides of the flexible display screen through the curvature adjustment structure. In addition, the linkage assembly can synchronously actuate the first swing arm and the second swing arm, so the operator only needs to operate one side of the flexible display screen to simultaneously adjust the curvature of both sides of the flexible display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional appearance diagram of a display device in some embodiments of the present invention.

[0017] Figure 2 FIG. 4 is a schematic diagram of a display device before being bent in some embodiments of the present invention.

[0018] Figure 3 FIG. 1 is a schematic diagram of a display device after being bent in some embodiments of the present invention.

[0019] Figure 4 This is a schematic diagram of the display device before being bent in some embodiments of the present invention, showing the relative positions of the first swing arm and the second swing arm when the linkage component is a rack.

[0020] Figure 5 This is a schematic diagram of a display device after being bent in some embodiments of the present invention, showing the relative positions of the first swing arm and the second swing arm when the linkage component is a rack.

[0021] Figure 6 This is a schematic diagram of the display device before being bent in some embodiments of the present invention, showing the relative positions of the first swing arm and the second swing arm when the linkage component is a gear set.

[0022] Figure 7 This is a schematic diagram of a display device after being bent in some embodiments of the present invention, showing the relative positions of the first swing arm and the second swing arm when the linkage component is a gear set.

[0023] Figure 8 This is a schematic diagram of the display device before being bent in some embodiments of the present invention, showing the relative positions of the first swing arm and the second swing arm when the linkage assembly is a connecting rod assembly.

[0024] Fig. 9This is a schematic diagram of a display device after being bent in some embodiments of the present invention, showing the relative positions of the first swing arm and the second swing arm when the linkage assembly is a connecting rod assembly.

[0025] The reference numerals are as follows:

[0026] 10: Display device

[0027] 102: Flexible display screen

[0028] 104: Curvature adjustment structure

[0029] 106: Back panel

[0030] 107: Long side

[0031] 108: First side

[0032] 109: Short side

[0033] 110: Second side

[0034] 112: Linkage components

[0035] 114: First swing arm

[0036] 116: Second swing arm

[0037] 118: first pivot end

[0038] 119: first toothing part

[0039] 120: first swing end

[0040] 122: Second pivot end

[0041] 123: Second toothing part

[0042] 124: Second swing end

[0043] 126: The first section

[0044] 128: Second section

[0045] 130:Fixed plate

[0046] 132: Limiting piece

[0047] 134: First wall

[0048] 136: Second wall

[0049] 138: First slide hole

[0050] 140: Second slide hole

[0051] 142: First rack

[0052] 144: Second rack

[0053] 146: Gear set

[0054] 148: First gear

[0055] 150: Second gear

[0056] 152: Connecting rod assembly

[0057] 154: First connecting rod

[0058] 156: Second connecting rod

[0059] 158: Third connecting rod

[0060] 160: First slide rail

[0061] 162: Second slide rail

[0062] 164: Connecting rod

[0063] 165: Head

[0064] 166: Friction plate

[0065] 168: Load-bearing block

[0066] L1, L2: Central axis

[0067] L3, L4: Length DETAILED DESCRIPTION

[0068] Various embodiments are provided below for detailed description. However, the embodiments are only used as examples and do not limit the scope of the invention. In addition, some elements are omitted in the drawings in the embodiments to clearly show the technical features of the invention. The same reference numerals will be used to represent the same or similar elements in all drawings.

[0069] See also Figure 1 , Figure 2 and Figure 3 . Figure 1 This is a three-dimensional appearance diagram of a display device in some embodiments of the present invention. Figure 2 FIG. 4 is a schematic diagram of a display device before being bent in some embodiments of the present invention. Figure 3 FIG. 1 is a schematic diagram of a display device after being bent in some embodiments of the present invention. Figure 1 , Figure 2 and Figure 3As shown, the display device 10 includes a flexible display screen 102 and a curvature adjustment structure 104. The flexible display screen 102 has a back plate 106, and the back plate 106 has a first side 108 and a second side 110 opposite to each other. The curvature adjustment structure 104 includes a linkage component 112, a first swing arm 114 and a second swing arm 116. The linkage component 112 is connected to the back plate 106 and is located between the first side 108 and the second side 110. The first swing arm 114 is located between the first side 108 and the linkage component 112, and the first swing arm 114 has a first pivot end 118 and a first swing end 120. The first pivot end 118 is pivotally disposed on the back plate 106 and connected to one side of the linkage component 112, and the first swing end 120 is connected to the back plate 106 and is adjacent to the first side 108. The second swing arm 116 is located between the second side 110 and the linkage assembly 112. The second swing arm 116 has a second pivot end 122 and a second swing end 124. The second pivot end 122 is pivoted on the back plate 106 and connected to the other side of the linkage assembly 112. The second swing end 124 is connected to the back plate 106 and is adjacent to the second side 110. When the linkage assembly 112 is actuated, the first swing arm 114 and the second swing arm 116 swing synchronously, so that the first swing end 120 and the second swing end 124 simultaneously drive the first side 108 and the second side 110 of the back plate 106 to move, thereby changing a curvature of the flexible display screen 102.

[0070] The flexible display screen 102 and the back plate 106 are fixed to each other. When force is applied to either the flexible display screen 102 or the back plate 106, the flexible display screen 102 and the back plate 106 can be bent to the same curvature. The back plate 106 can refer to an outer shell of the flexible display screen 102, or another plate fixed to the outer shell of the flexible display screen 102. The first side 108 and the second side 110 of the back plate 106 can refer to Figure 1 The first side 108 and the second side 110 respectively generate a force arm with the curvature adjustment structure 104 when an operator adjusts the curvature of the flexible display screen 102 , so that the operator can easily bend the flexible display screen 102 .

[0071] The curvature adjustment structure 104 can synchronously drive the first swing arm 114 and the second swing arm 116 through the linkage component 112. Specifically, the first swing end 120 is used to connect the flexible display screen 102 (for example, fixed to the back plate 106), and the second swing end 124 is used to connect the flexible display screen 102 (for example, fixed to the back plate 106). When the first side 108 is bent, the first swing arm 114 can swing relative to the linkage component 112, and the linkage component 112 can synchronously drive the second swing arm 116 according to the swing of the first swing arm 114, so that the first swing arm 114 and the second swing arm 116 can reach the same swing amplitude. When the first swing arm 114 and the second swing arm 116 are driven, the first swing end 120 can push the first side 108 of the flexible display screen 102, and the second swing end 124 can push the second side 110 of the flexible display screen 102. So that the two sides (108, 110) of the flexible display screen 102 can be synchronously bent. The linkage assembly 112 can be fixed to the back plate 106 by screws or adhesives. In some embodiments, the linkage assembly 112 can be actuated by manually operating one or both sides of the flexible display screen 102, or by a motor (described later).

[0072] In some embodiments, the first swing arm 114 and the second swing arm 116 are of equal length and extend to the first side 108 and the second side 110 (opposite sides of the linkage assembly) respectively. Figure 2 and Figure 3 As shown, the linkage assembly 112 can be fixed at a central position of the back plate 106. The central position can refer to any position on a central axis L1 between the first side 108 and the second side 110, and a central axis L2 of the linkage assembly 112 coincides with the central axis L1, so that the first swing end 120 and the second swing end 124 can be mirror-symmetrical to the central axis L1 of the back plate 106. Therefore, when the first swing arm 114 and the second swing arm 116 have the same length, the first swing arm 114 and the second swing arm 116 extend to opposite sides of the linkage assembly 112 at equal lengths. The central position can also refer to the position where a midline in the middle of the long side 107 and a midline in the middle of the short side 109 intersect each other (i.e. Figure 1 In some embodiments, the linkage component 112 may be, for example, a rack, a gear set, or a connecting rod component (to be described later).

[0073] In some embodiments, when the first swing arm 114 and the second swing arm 116 swing synchronously, the central axis L1 to the first side 108 and the central axis L1 to the second side 110 have the same curvature change. Figure 2As shown, when the first swing arm 114 swings, the linkage assembly 112 can synchronously link the first swing arm 114 and the second swing arm 116, so that the first swing arm 114 and the second swing arm 116 can swing with the same amplitude. Figure 3 As shown, when the first swing arm 114 stops swinging, the second swing arm 116 also stops swinging. During the synchronous swinging of the first swing arm 114 and the second swing arm 116, the flexible display screen 102 will be pushed against the first swing arm 114 and the second swing arm 116 at the same time. At this moment, there is a first curvature change from the central axis L1 to the first side 108, and there is a second curvature change from the central axis L1 to the second side 110. The first curvature change may refer to the change in curvature at all positions between the central axis L1 and the first side 108, and the second curvature change may refer to the change in curvature at all positions between the central axis L1 and the second side 110. The curvature change of the first side 108 is consistent with the curvature change of the second side 110. In this way, when the operator is operating the flexible display screen 102 , the operator only needs to actuate the first swing arm 114 or the second swing arm 116 (ie, bend the first side 108 or the second side 110 ) to make the two sides of the flexible display screen 102 have the same curvature.

[0074] For example Figure 2 As shown, in some embodiments, the first swing arm 114 has a first branch section 126 and a second branch section 128, the first branch section 126 is adjacent to the linkage assembly 112, the second branch section 128 is adjacent to the first side 108, and the length L3 of the first branch section 126 is less than half of the length L4 of the second branch section 128. Taking a 21-inch flexible display screen 102 as an example, if the length L4 of the second branch section 128 is 24 mm, the length L3 of the first branch section 126 can be 12 mm. As a result, the operator can achieve a labor-saving effect when bending the first side 108 or the second side 110. It should be noted that the lengths (L3, L4) of the first branch section 126 and the second branch section 128 can be adjusted according to the size of the flexible display screen 102 (such as the length of the long side 107 of the flexible display screen 102). Similarly, the second swing arm 116 also has a first branch section 126 and a second branch section 128 . The second swing arm 116 has the same structure as the first swing arm 114 . Please refer to the description of the first swing arm 114 .

[0075] See also Figure 1 , Figure 4 and Figure 5 . Figure 4 This is a schematic diagram of the display device before being bent in some embodiments of the present invention, showing the relative positions of the first swing arm and the second swing arm when the linkage component is a rack. Figure 5 FIG. 1 is a schematic diagram of a display device after bending in some embodiments of the present invention, showing the relative positions of the first swing arm and the second swing arm when the linkage component is a rack. Figure 4 and Figure 5 As shown, the linkage assembly 112 includes a fixed plate 130 and a stopper 132. The fixed plate 130 has a first wall surface 134 and a second wall surface 136. The first wall surface 134 has a first sliding hole 138, and the second wall surface 136 has a second sliding hole 140. The stopper 132 is slidably pivoted in the first sliding hole 138 and the second sliding hole 140, and the two sides of the stopper 132 are respectively provided with a first rack 142 and a second rack 144. The first pivot end 118 is engaged with the first rack 142, and the second pivot end 122 is engaged with the second rack 144. The aforementioned "the stopper 132 is slidably pivoted in the first sliding hole 138 and the second sliding hole 140" may mean that when the linkage assembly 112 is actuated, the stopper 132 moves along the first sliding hole 138 and the second sliding hole 140, and synchronously links the first swing arm 114 and the second swing arm 116. In some embodiments, the first pivot end 118 has a first toothed portion 119, and the first toothed portion 119 is used to be engaged with the first rack 142. The second pivot end 122 has a second toothed portion 123, and the second toothed portion 123 is used to be engaged with the second rack 144. The first toothed portion 119 and the second toothed portion 123 are half-tooth structures, and the first pivot end 118 can limit the swing position of the first swing arm 114 within the coverage range of the first toothed portion 119. Similarly, the second pivot end 122 can limit the swing position of the second swing arm 116 within the coverage range of the second toothed portion 123.

[0076] Please also read Figure 1 , Figure 6 and Figure 7 . Figure 6 This is a schematic diagram of the display device before being bent in some embodiments of the present invention, showing the relative positions of the first swing arm and the second swing arm when the linkage component is a gear set. Figure 7 FIG. 1 is a schematic diagram of a display device after bending in some embodiments of the present invention, showing the relative positions of the first swing arm and the second swing arm when the linkage assembly is a gear set. Figure 6 and Figure 7As shown, the linkage assembly 112 includes a fixed plate 130 and a gear set 146. The fixed plate 130 has a first wall surface 134 and a second wall surface 136. The gear set 146 is pivotally disposed between the first wall surface 134 and the second wall surface 136, and the first pivot end 118 is connected to one side of the gear set 146, and the second pivot end 122 is connected to the other side of the gear set 146. When the linkage assembly 112 is actuated, the gear set 146 synchronously links the first swing arm 114 and the second swing arm 116. Specifically, the gear set 146 includes at least a first gear 148 and a second gear 150. The first gear 148 is adjacent to the first side 108 and meshes with the first meshing portion 119 of the first pivot end 118. The second gear 150 is adjacent to the second side 110 and meshes with the second meshing portion 123 of the second pivot end 122. Taking the operation of the first side 108 as an example, when the first swing arm 114 is actuated, the first toothed portion 119 of the first pivot end 118 can drive the first gear 148 to rotate. The first gear 148 can drive the second gear 150, so that the second gear 150 drives the second toothed portion 123 of the second pivot end 122 to swing the second swing arm 116 synchronously. Thus, the first swing arm 114 and the second swing arm 116 can swing synchronously through the gear set 146, so that the curvature of the flexible display screen 102 on the first side 108 and the second side 110 can be consistent. In some embodiments, the gear set 146 can include a motor (not shown), and the motor can be connected to the first gear 148 or the second gear 150. When the motor is actuated, the motor can drive one of the first gear 148 and the second gear 150, and synchronously rotate the other of the first gear 148 and the second gear 150.

[0077] Please also read Figure 1 , Figure 8 and Fig. 9 . Figure 8 This is a schematic diagram of the display device before being bent in some embodiments of the present invention, showing the relative positions of the first swing arm and the second swing arm when the linkage assembly is a connecting rod assembly. Fig. 9 FIG. 1 is a schematic diagram of a display device after bending in some embodiments of the present invention, showing the relative positions of the first swing arm and the second swing arm when the linkage assembly is a connecting rod assembly. Figure 8 and Fig. 9As shown, the linkage assembly 112 includes a fixed plate 130 and a connecting rod assembly 152. The fixed plate 130 has a first wall surface 134 and a second wall surface 136. The connecting rod assembly 152 is pivoted between the first wall surface 134 and the second wall surface 136, the first pivot end 118 is connected to one side of the connecting rod assembly 152, and the second pivot end 122 is connected to the other side of the connecting rod assembly 152. When the linkage assembly 112 is actuated, the connecting rod assembly 152 synchronously links the first swing arm 114 and the second swing arm 116. Specifically, the connecting rod assembly 152 at least includes a first connecting rod 154, a second connecting rod 156 and a third connecting rod 158. The third connecting rod 158 is fixed to the fixed plate 130, and the two ends of the third connecting rod 158 are pivoted to the first connecting rod 154 and the second connecting rod 156 respectively. The first connecting rod 154 is connected to the first pivot end 118, and the second connecting rod 156 is connected to the second pivot end 122. Taking the operation of the first side 108 as an example, when the first swing arm 114 is actuated, the first pivot end 118 can link the first link 154. The first link 154 can link the second link 156 through the third link 158, so that the second link 156 links the second pivot end 122 to synchronously swing the second swing arm 116. Thus, the first swing arm 114 and the second swing arm 116 can be synchronously swung through the link assembly 152, so that the curvature of the flexible display screen 102 on the first side 108 and the second side 110 can be consistent.

[0078] For example Figure 2 and Figure 3 As shown, in some embodiments, the display device 10 further includes a first slide rail 160 and a second slide rail 162. The first slide rail 160 is fixed to the first side 108, and the first swing end 120 is pivotally connected to the first slide rail 160. The second slide rail 162 is fixed to the second side 110, and the second swing end 124 is pivotally connected to the second slide rail 162. When the linkage assembly 112 is actuated, the first swing end 120 is limited by the first slide rail 160, and the second swing end 124 is limited by the second slide rail 162. Thus, the first slide rail 160 and the second slide rail 162 can respectively limit the swing amplitude of the first swing arm 114 and the second swing arm 116, so that the curvature of the flexible display screen 102 can be limited within a specified range. It should be noted that the curvature range can be set in advance, so that when the operator adjusts the curvature of the flexible display screen 102, the best viewing experience can be obtained within the preset curvature range.

[0079] For example Figure 2 and Figure 3As shown, in some embodiments, the display device 10 further includes a connecting rod 164 and a friction plate 166. The first swing end 120 is pivotally connected to the first slide rail 160 by the connecting rod 164, and the friction plate 166 is located between a head 165 of the connecting rod 164 and the first slide rail 160. When the first swing arm 114 is actuated by an external force, the head 165 is normally pressed against the surface of the friction plate 166 to generate a friction force. When the external force disappears, the first swing end 120 is affected by the friction force and is fixed in the lower position of the first slide rail 160, and the curvature of the flexible display screen 102 on the first side 108 is maintained. Similarly, the friction plate 166 can also be set on the second swing arm 116 or the linkage component 112 to increase the friction force of the curvature adjustment structure 104 as a whole.

[0080] For example Figure 1 As shown, in some embodiments, a force block 168 is connected to an edge of the first side 108 and the second side 110, respectively. The force block 168 can be directly fixed to the back plate 106. When the operator applies force to the force block 168, the force block 168 can evenly apply force to the first side 108 or the second side 110 to which it is connected. In some embodiments, the force block 168 can be arranged in the middle of the short side 109. The force block 168 and the curvature adjustment structure 104 can be located on the same axis, so that the force applied by the operator can be more completely input to the first swing end 120 or the second swing end 124. In some embodiments, the length of the force block 168 is equal to the length of the short side 109. The force applied by the operator at any position of the short side 109 can be evenly distributed by the force block 168 to each position of the short side 109.

[0081] In summary, in some embodiments, a display device 10 includes a flexible display screen 102 and a curvature adjustment structure 104. The curvature adjustment structure 104 is connected to the back plate 106 of the flexible display screen 102. When any side of the flexible display screen 102 is adjusted, the linkage assembly 112 can synchronously actuate the first swing arm 114 and the second swing arm 116, so that the first swing arm 114 and the second swing arm 116 reach the same swing amplitude. In addition, during the swinging process, the first swing arm 114 and the second swing arm 116 can synchronously push the two sides of the flexible display screen 102, so that the two sides of the flexible display screen 102 are bent to the same curvature. Therefore, under different usage requirements of the flexible display screen 102, the operator can adjust the curvature of the two sides (108, 110) of the flexible display screen 102 through the curvature adjustment structure 104. In addition, the linkage assembly 112 can synchronously actuate the first swing arm 114 and the second swing arm 116 , so the operator only needs to operate one side of the flexible display screen 102 to simultaneously adjust the curvature of both sides ( 108 , 110 ) of the flexible display screen 102 .

[0082] The embodiments described above are only for illustrating the technical ideas and features of the present invention, and their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They cannot be used to limit the patent scope of the present invention, that is, any equivalent changes or modifications made according to the spirit disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A display device, characterized in that: Include: A flexible display screen has a back plate having a first side and a second side opposite to each other; and A curvature adjustment structure, comprising: A linkage assembly connected to the back plate and located between the first side and the second side; a first swing arm, located between the first side and the linkage assembly, the first swing arm having a first pivot end and a first swing end, the first pivot end being pivotally disposed on the back plate and connected to one side of the linkage assembly, the first swing end being connected to the back plate and adjacent to the first side; and a second swing arm, located between the second side and the linkage assembly, the second swing arm having a second pivot end and a second swing end, the second pivot end being pivotally disposed on the back plate and connected to the other side of the linkage assembly, the second swing end being connected to the back plate and adjacent to the second side; When the linkage assembly is actuated, the first swing arm and the second swing arm swing synchronously, so that the first swing end and the second swing end simultaneously drive the first side and the second side of the back plate to move to change a curvature of the flexible display screen.

2. The display device according to claim 1, wherein: The linkage assembly includes: A fixed plate having a first wall surface and a second wall surface, the first wall surface having a first sliding hole, the second wall surface having a second sliding hole; and A limiter is slidably pivoted on the first sliding hole and the second sliding hole, and two sides of the limiter are respectively provided with a first rack and a second rack, the first pivot end is geared with the first rack, and the second pivot end is geared with the second rack.

3. The display device according to claim 1, wherein: The linkage assembly includes: A fixed plate having a first wall surface and a second wall surface; A gear set is pivotally disposed between the first wall surface and the second wall surface, the first pivot end is connected to one side of the gear set, and the second pivot end is connected to the other side of the gear set; When the linkage assembly is actuated, the gear set synchronously links the first swing arm and the second swing arm.

4. The display device according to claim 1, wherein: The linkage assembly includes: A fixed plate having a first wall surface and a second wall surface; A connecting rod assembly is pivotally disposed between the first wall surface and the second wall surface, wherein the first pivot end is connected to one side of the connecting rod assembly, and the second pivot end is connected to the other side of the connecting rod assembly; When the linkage assembly is actuated, the connecting rod assembly synchronously links the first swing arm and the second swing arm.

5. The display device according to claim 1, wherein: Also includes: A first slide rail fixed to the first side, the first swing end being pivotally connected to the first slide rail; and A second slide rail fixed to the second side, the second swing end being pivotally connected to the second slide rail; When the linkage assembly is actuated, the first swing end is limited by the first slide rail, and the second swing end is limited by the second slide rail.

6. The display device according to claim 5, characterized in that It also includes a connecting rod and a friction plate. The first swing end is pivotally connected to the first slide rail through the connecting rod. The friction plate is located between a head of the connecting rod and the first slide rail.

7. The display device according to claim 1, wherein: The first swing arm and the second swing arm are of equal length and extend to the first side and the second side respectively.

8. The display device according to claim 1, wherein: There is a central axis between the first side and the second side. When the first swing arm and the second swing arm swing synchronously, the central axis to the first side and the central axis to the second side have the same curvature change.

9. The display device according to claim 1, wherein: The first swing arm has a first branch section and a second branch section, the first branch section is adjacent to the linkage assembly, the second branch section is adjacent to the first side, and the length of the first branch section is less than half of the length of the second branch section.

10. The display device according to claim 1, wherein: An edge of the first side and an edge of the second side are respectively connected to a force bearing block.

11. A curvature adjustment structure of a flexible display screen, used to change a curvature of the flexible display screen, characterized in that: Include: A linkage assembly; a first swing arm having a first pivot end and a first swing end, the first pivot end being connected to one side of the linkage component, and the first swing end being used to connect to the flexible display screen; and a second swing arm having a second pivot end and a second swing end, wherein the second pivot end is connected to the other side of the linkage assembly, and the second swing end is used to connect to the flexible display screen; When the linkage assembly is actuated, the first swing arm and the second swing arm swing synchronously, so that the first swing end and the second swing end are actuated simultaneously.

12. The curvature adjustment structure of the flexible display screen according to claim 11, characterized in that: The linkage assembly includes: A fixed plate having a first wall surface and a second wall surface, the first wall surface having a first sliding hole, the second wall surface having a second sliding hole; and A stopper, pivotally mounted on the first sliding hole and the second sliding hole, respectively, with a first rack and a second rack respectively disposed on two sides of the stopper, the first pivot end being engaged with the first rack, and the second pivot end being engaged with the second rack; When the linkage assembly is actuated, the position-limiting member moves along the first sliding hole and the second sliding hole, and synchronously links the first swing arm and the second swing arm.

13. The curvature adjustment structure of the flexible display screen according to claim 11, characterized in that: The linkage assembly includes: A fixed plate having a first wall surface and a second wall surface; A gear set is pivotally disposed between the first wall surface and the second wall surface, the first pivot end is connected to one side of the gear set, and the second pivot end is connected to the other side of the gear set; When the linkage assembly is actuated, the gear set synchronously links the first swing arm and the second swing arm.

14. The curvature adjustment structure of the flexible display screen according to claim 11, wherein: The linkage assembly includes: A fixed plate having a first wall surface and a second wall surface; A connecting rod assembly is pivotally disposed between the first wall surface and the second wall surface, wherein the first pivot end is connected to one side of the connecting rod assembly, and the second pivot end is connected to the other side of the connecting rod assembly; When the linkage assembly is actuated, the connecting rod assembly synchronously links the first swing arm and the second swing arm.

15. The curvature adjustment structure of the flexible display screen according to claim 11, characterized in that: The first swing end is pivotally connected to a first slide rail, and the second swing end is pivotally connected to a second slide rail. When the linkage assembly is actuated, the first swing end is limited by the first slide rail, and the second swing end is limited by the second slide rail.

16. The curvature adjustment structure of the flexible display screen according to claim 15, characterized in that: It also includes a connecting rod and a friction plate. The first swing end is pivotally connected to the first slide rail through the connecting rod. The friction plate is located between a head of the connecting rod and the first slide rail.

17. The curvature adjustment structure of the flexible display screen according to claim 11, characterized in that: The first swing arm and the second swing arm are respectively and equally extended to opposite sides of the linkage component.

18. The curvature adjustment structure of the flexible display screen according to claim 11, characterized in that: When the first swing arm and the second swing arm are bent synchronously, the first swing arm and the second swing arm have the same displacement distance on an axis.

19. The curvature adjustment structure of the flexible display screen according to claim 11, wherein: The first swing arm and the second swing arm respectively have a first branch section and a second branch section, the first branch section is adjacent to the linkage component, the second branch section is respectively located on two opposite sides of the linkage component, and the length of the first branch section is less than half of the length of the second branch section.

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