A curling assembly and display device

Abstract

The application discloses a curling assembly and a display device. The curling assembly comprises a flexible display panel and a supporting mechanism. The supporting mechanism comprises a first supporting member and a second supporting member which are cross matched. The height difference between the first supporting surface of the first supporting member and the second supporting surface of the second supporting member in the direction perpendicular to the flexible display panel is within an error range. The curling assembly has a first state and a second state. The flexible display panel has a first surface and a second surface in the first state and the second state respectively. The area of the first surface is smaller than that of the second surface. In the first state, the sum of the areas of the first supporting surface and the second supporting surface is not less than that of the first surface. In the second state, the sum of the areas of the first supporting surface and the second supporting surface is not less than that of the second surface. The supporting mechanism can support the flexible display panel with any length without gap, so that the flatness, touch performance and strength uniformity of the flexible display panel are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display screens, and in particular to a curling assembly and a display device. BACKGROUND

[0002] Display screens are important components of electronic products. With the rapid development of electronic products and the diversification of user demand for electronic products, people have increasingly high requirements for display screens, such as the requirement that a display screen should have a large display area and should be easy to store. In order to meet this requirement, a curling screen assembly has emerged. The curling screen assembly has an unfolded state and a storage state.

[0003] The curling screen assembly is referred to as a curling screen. The curling screen includes a display surface and a surface to be supported. In an electronic product, a support device for supporting the curling screen is usually arranged on one side of the surface to be supported. However, in order to be able to support curling screens of different unfolded lengths, the support device usually needs to switch its own state to change the support length of the curling screen. In the process of switching its own state, the support device inevitably appears to support part of the curling screen in a hollowed-out manner, thereby making the display surface of the curling screen uneven, seriously affecting the touch performance and strength uniformity of the curling screen, and reducing the user experience. SUMMARY

[0004] A first object of the present application is to provide a curling assembly, which has a high flatness of a flexible display panel after being unfolded, and improves the touch performance and strength uniformity thereof.

[0005] To achieve this object, the present application adopts the following technical solutions:

[0006] A curling assembly includes a flexible display panel and a support mechanism located away from a light-emitting surface of the flexible display panel. The support mechanism includes a first support member and a second support member that cross each other. The first support member has a first support surface close to the flexible display panel, and the second support member has a second support surface close to the flexible display panel. The height difference between the first support surface and the second support surface in the direction perpendicular to the flexible display panel is within an error range. The curling assembly has a first state and a second state. In the vertical direction of the light-emitting surface, the flexible display panel has a first surface in the first state, and the flexible display panel has a second surface in the second state. The area of the first surface is smaller than the area of the second surface. In the first state, the sum of the areas of the first support surface and the second support surface is not less than the area of the first surface. In the second state, the sum of the areas of the first support surface and the second support surface is not less than the area of the second surface.

[0007] The present application has the following advantages:

[0008] The curling assembly provided by the application comprises a flexible display panel and a supporting mechanism located away from a light-emitting surface of the flexible display panel; the supporting mechanism comprises a first supporting member and a second supporting member which are cross-fitted, the first supporting member has a first supporting surface close to the flexible display panel, the second supporting member has a second supporting surface close to the flexible display panel, and a height difference between the first supporting surface and the second supporting surface in a direction perpendicular to the flexible display panel is within an error range; the curling assembly has a first state and a second state, in the vertical light-emitting direction, the flexible display panel has a first surface in the first state, and the flexible display panel has a second surface in the second state, an area of the first surface is smaller than an area of the second surface; in the first state, a sum of areas of the first supporting surface and the second supporting surface is not less than the area of the first surface, and in the second state, the sum of the areas of the first supporting surface and the second supporting surface is not less than the area of the second surface. The supporting mechanism can support the flexible display panel of any unfolded length without a gap, thereby improving the flatness of the flexible display panel and improving the touch performance and strength uniformity of the flexible display panel.

[0009] The display device provided by the application comprises the curling assembly which can support the flexible display panel without a gap through the supporting mechanism, thereby improving the flatness of the flexible display panel, improving the touch performance and strength uniformity of the display device, and improving the performance of the display device. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a schematic view of the curling assembly provided by the first embodiment of the application in the first state;

[0011] Figure 2 is a schematic view of the structure shown in another perspective view; Figure 1

[0012] Figure 3 is a top view of the structure shown; Figure 1

[0013] Figure 4 is a bottom view of the structure shown; Figure 1

[0014] Figure 5 is a front view of the structure shown; Figure 1

[0015] Figure 6 is a schematic view of the curling assembly provided by the first embodiment of the application in the second state;

[0016] Figure 7 is a schematic view of the structure shown in another perspective view; Figure 6

[0017] Figure 8 Figure 6 ​​​​​​Top view of the structure shown;

[0018] Figure 9 yes Figure 6 A bottom view of the structure shown;

[0019] Figure 10 yes Figure 6 Front view of the structure shown;

[0020] Figure 11 This is a schematic diagram of the first support surface of a first support member provided in Embodiment 1 of the present invention;

[0021] Figure 12 This is a schematic diagram of the second support surface of a second support member provided in Embodiment 1 of the present invention;

[0022] Figure 13 This is a schematic diagram of the first support surface of another first support member provided in Embodiment 1 of the present invention;

[0023] Figure 14 This is a schematic diagram of the second support surface of another second support member provided in Embodiment 1 of the present invention;

[0024] Figure 15 This is a schematic diagram of the structure of the first support member provided in Embodiment 1 of the present invention;

[0025] Figure 16 yes Figure 15 A schematic diagram of the structure shown from another perspective;

[0026] Figure 17 This is a schematic diagram of the structure of the second support member provided in Embodiment 1 of the present invention;

[0027] Figure 18 yes Figure 17 A schematic diagram of the structure shown from another perspective;

[0028] Figure 19 This is a schematic diagram of the support mechanism provided in Embodiment 1 of the present invention in its first state;

[0029] Figure 20 yes Figure 19 Top view of the structure shown;

[0030] Figure 21 yes Figure 19 A bottom view of the structure shown;

[0031] Figure 22 yes Figure 19 Front view of the structure shown;

[0032] Figure 23 This is a schematic diagram of the support mechanism provided in Embodiment 1 of the present invention in the second state;

[0033] Figure 24 is Figure 23 a top view of the structure shown in FIG. 1 1 1 ;

[0034] Figure 25 is Figure 23 a bottom view of the structure shown in FIG. 1 1 1 ;

[0035] Figure 26 is Figure 23 a front view of the structure shown in FIG. 1 1 1 ;

[0036] Figure 27 is a dimension view of the first support member provided by the first embodiment of the present application;

[0037] Figure 28 is Figure 27 a sectional view of A1-A1 in FIG. 1 1 1 ;

[0038] Figure 29 is Figure 27 a sectional view of A2-A2 in FIG. 1 1 1 ;

[0039] Figure 30 is a dimension view of the second support member provided by the first embodiment of the present application;

[0040] Figure 31 is Figure 30 a sectional view of A3-A3 in FIG. 1 1 1 ;

[0041] Figure 32 is Figure 30 a sectional view of A4-A4 in FIG. 1 1 1 ;

[0042] Figure 33 is a front view of the support mechanism provided by the first embodiment of the present application in the first state and when the first distance is greater than 0;

[0043] Figure 34 is a schematic view of the curling assembly, the first rotating shaft and the second rotating shaft provided by the first embodiment of the present application in the first state;

[0044] Figure 35 is Figure 34 a schematic view of the structure shown in FIG. 1 1 1 from another perspective;

[0045] Figure 36 is a schematic view of the curling assembly, the first rotating shaft and the second rotating shaft provided by the first embodiment of the present application in the second state;

[0046] Figure 37 is Figure 36 a schematic view of the structure shown in FIG. 1 1 1 from another perspective;

[0047] Figure 38 is a schematic view of the first rotating shaft provided by the first embodiment of the present application;

[0048] Figure 39 is a schematic view of a second rotating shaft provided by Embodiment One of the present application;

[0049] Figure 40 is a view of a state after a first support member is unfolded provided by Embodiment Two of the present application;

[0050] Figure 41 is a view of a state after a second support member is unfolded provided by Embodiment Two of the present application;

[0051] Figure 42 is a front view of a state when a support mechanism is not unfolded provided by Embodiment Two of the present application;

[0052] Figure 43 is a view of a state after a first support member is unfolded provided by Embodiment Three of the present application;

[0053] Figure 44 is a view of a state after a second support member is unfolded provided by Embodiment Three of the present application;

[0054] Figure 45 is a front view of a state when a support mechanism is not unfolded provided by Embodiment Three of the present application;

[0055] Figure 46 is a schematic view of a display device in a first state when a curling assembly thereof is provided by Embodiment Four of the present application;

[0056] Figure 47 is a schematic view of a display device in a second state when a curling assembly thereof is stretched by both sides provided by Embodiment Four of the present application;

[0057] Figure 48 is a first schematic view of a display device in a second state when a curling assembly thereof is stretched by one side provided by Embodiment Four of the present application;

[0058] Figure 49 is a second schematic view of a display device in a second state when a curling assembly thereof is stretched by one side provided by Embodiment Four of the present application.

[0059] in the drawings:

[0060] 100, flexible display panel; 101, first surface; 102, second surface; 110, first portion; 120, second portion; 130, third portion;

[0061] 10, support mechanism; 200, first support member; 201, first support surface; 210, first main body portion; 211, first recessed portion; 212, first protruding strip portion; 220, first connecting portion; 221, first flat portion; 222, first curling portion; 2221, second tooth-shaped structure; 2222, second tooth groove;

[0062] 300, second support; 301, second support surface; 310, second main body portion; 311, second recessed portion; 312, second protruded portion; 320, second connecting portion; 321, second flat portion; 322, second curled portion; 3221, fourth tooth structure; 3222, fourth tooth groove;

[0063] 400, first rotation shaft; 410, first tooth structure; 420, first tooth groove;

[0064] 500, second rotation shaft; 510, third tooth structure; 520, third tooth groove;

[0065] 1. A display device. DETAILED DESCRIPTION

[0066] The application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the application, and not to limit the application. In addition, it should be noted that, for the convenience of description, only the parts related to the application are shown in the drawings, not all the structures.

[0067] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0068] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0069] In the description of the present embodiment, the terms "upper", "lower", "right", and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0070] Embodiment One

[0071] The embodiment discloses a curling assembly which can be used in a display device as a display component of the display device. As shown in Figures 1 to 10 , the curling assembly comprises a flexible display panel 100 and a supporting mechanism 10.

[0072] Referring to Figure 1 and Figure 6 , the curling assembly comprises a flexible display panel 100 and a supporting mechanism 10. The supporting mechanism 10 is located at a side of the flexible display panel 100 away from a light emitting direction and is used for supporting the flexible display panel 100. The flexible display panel 100 is capable of being unfolded and rolled up in a second direction, as shown in Figure 1 and Figure 6 , the second direction has a forward direction and a reverse direction, and at least one end portion of the flexible display panel 100 is capable of being unfolded to an unfolded state with a larger light emitting surface and rolled up to a rolled up state with a smaller light emitting surface under the action of an external force.

[0073] The curling assembly has a first state and a second state. For the convenience of description, the rolled up state is defined as the first state as shown in Figures 1 to 5 , and the unfolded state is defined as the second state as shown in Figures 6 to 10 . Referring to Figure 3 , in the first state, the flexible display panel 100 has a first surface 101 in a direction perpendicular to the light emitting direction, the first surface 101 being the surface of the flexible display panel 100 in the virtual frame in the first state, and the area of the first surface 101 being represented by S01; referring to Figure 8 , in the second state, the flexible display panel 100 has a second surface 102 in the direction perpendicular to the light emitting direction, the second surface 102 being the surface of the flexible display panel 100 in the virtual frame in the second state, and the area of the second surface 102 being represented by S02, the area of the first surface 101 being smaller than the area of the second surface 102. For details, refer to Figure 1 and Figure 2 , wherein Figure 1 and Figure 2 are schematic views of the curling assembly in the first state, i.e., the rolled up state, and the light emitting direction of the flexible display panel 100 is Figure 3 , the direction perpendicular to the paper surface outward, the direction perpendicular to the light emitting direction, the flexible display panel 100 has the first surface 101, and the first surface 101 comprises a display area X1 and a non-display area NX1 surrounding the display area. Figure 6 and Figure 7This is a schematic diagram of the roll-up assembly in the second state, i.e., the unfolded state. In this state, the light emission direction of the flexible display panel 100 is the same as that in the first state, perpendicular to the light emission direction. The flexible display panel 100 has a second surface 102, which includes a display area X2 and a non-display area X2 surrounding the display area. It can be understood that the second state, i.e., the unfolded state, involves unfolding a portion of the flexible display panel 100 that is in a roll-up state. This portion of the flexible display panel 100 can be fully unfolded or partially unfolded. Both fully and partially unfolded states fall within the protection scope of this application. Because the display area / light emission area of ​​the flexible display panel 100 increases in the unfolded state, meaning the area of ​​the second surface 102 is larger than the area of ​​the first surface 101, the display area of ​​the flexible display panel 100 can be freely adjusted as needed.

[0074] Continue to refer to Figure 1 As shown, the flexible display panel 100 is in a first state. The flexible display panel 100 includes a first portion 110, a second portion 120, and a third portion 130. The second portion 120 and the third portion 130 are respectively formed on both sides of the first portion 110 in a second direction. The first portion 110 is flat in the second direction, and the second portion 120 and the third portion 130 are in a rolled-up state. At this time, the first portion 110 has a first surface 101. Continuing to refer to... Figure 6 As shown, under the action of external force, the second part 120 can unfold in the opposite direction of the second direction, and the third part 130 can unfold in the positive direction of the second direction. The first part 110, the second part 120, and the third part 130 are connected to form the display surface / light-emitting surface of the flexible display panel 100. At this time, the flexible display panel 100 has a second surface 102. As mentioned above, the second part 120 and the third part 130 do not need to be fully unfolded. They can be partially unfolded as needed to achieve the purpose of freely adjusting the size of the display area.

[0075] In this embodiment, both the second portion 120 and the third portion 130 of the flexible display panel 100 can undergo curling and unfolding actions. When the flexible display panel 100 in the first state needs to switch to the second state, that is, from... Figure 5 The status shown has switched to Figure 10 In the indicated state, the two ends of the flexible display panel 100 are stretched bilaterally, meaning that the second part 120 and the third part 130 of the flexible display panel 100, which are in a rolled-up shape, can both unfold in the positive upward direction or the opposite direction of the second direction, respectively; when the flexible display panel 100 in the second state needs to switch to the first state, that is, from Figure 10 The status shown has switched to Figure 5In the state shown, the two ends of the flexible display panel 100 are double-wound, i.e. the second portion 120 and the third portion 130 of the flexible display panel 100 can be respectively curled in the positive direction of the second direction or in the reverse direction of the second direction.

[0076] With continued reference to Figure 1 and Figure 6 As shown, the support mechanism 10 comprises a first support 200 and a second support 300 cross-fitted, the first support 200 and the second support 300 can be relatively moved in the second direction, i.e. when one of the first support 200 and the second support 300 moves in the positive direction of the second direction, the other moves in the reverse direction of the second direction. The first support 200 and the second support 300 are both supported at the flexible display panel 100 in the third direction.

[0077] With reference to Figure 11 and Figure 13 As shown, the first support 200 has a first support surface 201 close to the flexible display panel 100, the area of the first support surface 201 is defined as S1, i.e. the sum of the areas of the portions of the first support 200 within the dashed frame and capable of supporting the flexible display panel 100 is S1. With reference to Figure 12 and Figure 14 As shown, the second support 300 has a second support surface 301 close to the flexible display panel 100, the area of the second support surface 301 is S2, i.e. the sum of the areas of the portions of the second support 300 within the dashed frame and capable of supporting the flexible display panel 100 is S2.

[0078] It should be noted that, Figure 11 is a schematic view of a first support 200 in the second state; Figure 12 is a schematic view of a second support 300 in the second state; Figure 11 The first support 200 shown in Figure 12 The second support 300 shown in Figure 13 is a schematic view of another first support 200 in the second state; Figure 14 is a schematic view of another second support 300 in the second state; Figure 13 The first support 200 shown in Figure 14 The second support 300 shown in

[0079] It should be noted that the third direction is the light-out direction of the flexible display panel 100 or the direction perpendicular to the first surface 101 or the second surface 102 of the flexible display panel 100, and the second direction is the direction parallel to the first surface 101 or the second surface 102 of the flexible display panel 100. In a specific embodiment, the third direction is the vertical direction, and the second direction is the horizontal direction.

[0080] When the flexible display panel 100 in the first state is stretched bilaterally in the second direction, i.e., one of the second portion 120 and the third portion 130 of the flexible display panel 100 expands in the positive direction of the second direction, and the other expands in the negative direction of the second direction, the first support 200 and the second support 300 move in the opposite direction in the second direction, i.e., one of the first support 200 and the second support 300 moves in the positive direction of the second direction, and the other moves in the negative direction of the second direction, and the first support surface 201 and the second support surface 301 both increase.

[0081] When the flexible display panel 100 in the second state is rolled bilaterally in the second direction, i.e., one of the second portion 120 and the third portion 130 of the flexible display panel 100 rolls in the positive direction of the second direction, and the other rolls in the negative direction of the second direction, the first support 200 and the second support 300 move in the opposite direction in the second direction, i.e., one of the first support 200 and the second support 300 moves in the positive direction of the second direction, and the other moves in the negative direction of the second direction, and the first support surface 201 and the second support surface 301 both decrease.

[0082] Regardless of whether in the second state or in the first state, the height difference between the first support surface 201 and the second support surface 301 in the direction perpendicular to the flexible display panel 100 is within the error range. That is, regardless of whether the first support surface 201 or the second support surface 301, the distance between the flexible display panel 100 is always within the allowable error range, so that the support plane formed by the first support surface 201 and the second support surface 301 can stably support the flexible display panel 100.

[0083] And, in the first state and the second state, the sum of the areas of the first support surface 201 and the second support surface 301 is not less than the display area of the flexible display panel 100. That is, in the first state, the sum S1+S2 of the area S1 of the first support surface 201 and the area S2 of the second support surface 301 is not less than the area S01 of the first surface 101 of the flexible display panel 100; and in the second state, the sum S1+S2 of the area S1 of the first support surface 201 and the area S2 of the second support surface 301 is not less than the area S02 of the second surface 102 of the flexible display panel 100. 总 总 ​​

[0084] In some embodiments, the sum of the areas of the first support surface 201 and the second support surface 301 is S 总 The ratio of the area of ​​the flexible display panel 100 to the area of ​​the flexible display panel 100 is 1-1.2. That is, in the first state, the sum of the areas of the first support surface 201 and the second support surface 301 is S. 总 The ratio Q1 to the area S01 of the first surface 101 of the flexible display panel 100 is 1-1.2. Exemplarily, Q1 can be 1, 1.1, or 1.2, or other values ​​within the range of 1-1.2. In the second state, the sum of the areas S01 of the first support surface 201 and the second support surface 301 is S01. 总 The ratio Q2 to the area S02 of the second surface 102 of the flexible display panel 100 is 1-1.2. For example, Q2 can be 1, 1.1 or 1.2, or other values ​​in the range of 1-1.2.

[0085] By adjusting the shapes of the interlocking first support member 200 and the second support member 300, the size relationship between the areas of the first support surface 201 (S1) and the second support surface 301 (S2) can be changed. An example is shown below:

[0086] In one embodiment, refer to Figure 11 and Figure 12 As shown, the first support member 200 and the second support member 300 have the same shape, and the area S1 of the first support surface 201 of the first support member 200 and the area S2 of the second support surface 301 of the second support member 300 are equal within the error range. That is, in the first state, the area S1 of the first support surface 201 and the area S2 of the second support surface 301 are equal within the error range; and in the second state, the area S1 of the first support surface 201 and the area S2 of the second support surface 301 are equal within the error range.

[0087] In one parallel embodiment, reference is made to Figure 13 and Figure 14 As shown, the first support member 200 and the second support member 300 have different shapes. The area S1 of the first support surface 201 of the first support member 200 is larger than the area S2 of the second support surface 301 of the second support member 300. That is, in the first state, the area S1 of the first support surface 201 is larger than the area S2 of the second support surface 301; and in the second state, the area S1 of the first support surface 201 is larger than the area S2 of the second support surface 301.

[0088] In other words, the first support surface 201 and the second support surface 301 are always coplanar and non-overlapping; wherein, during the unfolding process or the retraction process of the flexible display panel 100, the area of the first support surface 201 and the area of the second support surface 301 are synchronously increased or synchronously decreased with the display area of the flexible display panel 100, and in the direction perpendicular to the flexible display panel 100, the projection of the first support surface 201 on the flexible display panel 100 and the projection of the second support surface 301 on the flexible display panel 100 cover the flexible display panel 100.

[0089] Compared with the prior art device which cannot realize full support of the flexible display panel, the support mechanism 10 provided by the present application can support the flexible display panel 100 of any length without gap, which not only improves the flatness of the flexible display panel 100, but also improves the touch performance and strength uniformity of the flexible display panel 100.

[0090] Referring to Figure 15 and Figure 16 , the first support piece 200 includes a first body part 210 and a first connecting part 220 connected to each other, the first body part 210 is provided with a first recess 211 penetrating in the second direction, in the first direction, the first body part 210 forms a first protruding strip part 212 on the side of the first recess 211, the first protruding strip part 212 and the first recess 211 are arranged adjacent to each other, and the first connecting part 220 is connected to the first protruding strip part 212. The top surface of the first protruding strip part 212 in the third direction and the top surface of at least part of the first connecting part 220 in the third direction constitute the first support surface 201. Optionally, the first recess 211 is a rectangular slot, and the first connecting part 220 is a rectangular strip.

[0091] Referring to Figure 17 and Figure 18 , the second support piece 300 includes a second body part 310 and a second connecting part 320 connected to each other, the second body part 310 is provided with a second recess 311 penetrating in the second direction, in the first direction, the second body part 310 forms a second protruding strip part 312 on the side of the second recess 311, the second protruding strip part 312 and the second recess 311 are arranged adjacent to each other, and the second connecting part 320 is connected to the second protruding strip part 312. The top surface of the second protruding strip part 312 in the third direction and the top surface of at least part of the second connecting part 320 in the third direction constitute the second support surface 301. Optionally, the second recess 311 is a rectangular slot, and the second connecting part 320 is a rectangular strip.

[0092] Referring to Figures 19 to 26As shown, when the first support 200 and the second support 300 are assembled into the support mechanism 10, the first main body 210 and the second connecting part 320 are stacked in the third direction, and the second main body 310 and the first connecting part 220 are stacked in the third direction, so that the first connecting part 220 is slidably placed in the second recess 311, and the second connecting part 320 is slidably placed in the first recess 211. In the first state, at least part of the first connecting part 220 fills in the second recess 311, and at least part of the second connecting part 320 fills in the first recess 211.

[0093] Referring to Figures 27 to 29 As shown, the following definitions are made: the maximum thickness D of the first main body 210; the first depth D1 of the first recess 211; the first width W1 of the first recess 211; the first length L1 of the first recess 211; the fourth width W4 of the first connecting part 220; the fifth width W5 of the first protruding strip 212; and the second thickness H2 of the first connecting part 220.

[0094] Referring to Figures 30 to 32 As shown, the following definitions are made: the second depth D2 of the second recess 311; the third thickness H3 of the second recess 311; the third width W3 of the second recess 311; the sixth width W6 of the second protruding strip 312; the first thickness H1 of the second connecting part 320; the second width W2 of the second connecting part 320; and the second length L2 of the second recess 311.

[0095] In some embodiments, along the direction perpendicular to the flexible display panel 100 (i.e. in the third direction), the first depth D1 of the first recess 211 is equal to the first thickness H1 of the second connecting part 320 filled in the first recess 211, and the second depth D2 of the second recess 311 is equal to the second thickness H2 of the first connecting part 220 filled in the second recess 311. In this way, the first support surface 201 and the second support surface 301 can be guaranteed to be at the same height.

[0096] In some embodiments, along the direction perpendicular to the flexible display panel 100, the maximum thickness D of the first main body 210 is equal to the sum of the second thickness H2 of the first connecting part 220 and the third thickness H3 of the second recess 311 filled by the first connecting part 220. In this way, the overall thickness of the first support 200 can be guaranteed to be consistent with the overall thickness of the second support 300, which is conducive to improving the support effect of the entire support mechanism 10.

[0097] In some embodiments, the ratio of the first width W1 of the first recess 211 to the second width W2 of the second connecting portion 320 filled in the first recess 211 is between 1-10:9 along the first direction. Such arrangement can ensure that the second connecting portion 320 is smoothly filled into the first recess 211, and the gap between the two is small, which does not affect the supporting effect on the flexible display panel 100.

[0098] In some embodiments, the ratio of the third width W3 of the second recess 311 to the fourth width W4 of the first connecting portion 220 filled in the second recess 311 is between 1-10:9. Such arrangement can ensure that the first connecting portion 220 is smoothly filled into the second recess 311, and the gap between the two is small, which does not affect the supporting effect on the flexible display panel 100.

[0099] In some embodiments, the fourth width W4 of the first connecting portion 220 is equal to the fifth width W5 of the first protruding strip portion 212 connected thereto along the first direction. Such arrangement makes the first support 200 easy to manufacture, and in addition, such arrangement makes it easy to control the hollowed-out positions between the first connecting portions 220 and the widths of the first recesses 211 between the first protruding strip portions 212. In the process of unfolding or rolling up, the gap between the second support 300 and the first support 200 is avoided and the jamming phenomenon is avoided, and in addition, the cutting trajectory does not need to be changed when the first connecting portion 220 and the first protruding strip portion 212 are integrally formed or integrally cut.

[0100] In some embodiments, the second width W2 of the second connecting portion 320 is equal to the sixth width W6 of the second protruding strip portion 312 connected thereto. Such arrangement makes the second support 300 easy to manufacture, and in addition, such arrangement makes it easy to control the hollowed-out positions between the second connecting portions 320 and the widths of the second recesses 311 between the second protruding strip portions 312. In the process of unfolding or rolling up, the gap between the second support 300 and the first support 200 is avoided and the jamming phenomenon is avoided, and in addition, the cutting trajectory does not need to be changed when the second connecting portion 320 and the second protruding strip portion 312 are integrally formed or integrally cut.

[0101] In some embodiments, the first lengths L1 of the at least two first recesses 211 are different. When the first lengths L1 of the first recesses 211 are different, the lengths of the second connecting portions 320 matched with the first recesses 211 are also different.

[0102] In one embodiment, the first lengths L1 of the first recesses 211 arranged adjacently are different, and are arranged alternately in a long-short manner along the first direction. Alternatively, the first lengths L1 of the first recesses 211 in odd positions are longer, and the first lengths L1 of the first recesses 211 in even positions are shorter. Alternatively, the first lengths L1 of the first recesses 211 in even positions are longer, and the first lengths L1 of the first recesses 211 in odd positions are shorter.

[0103] In one parallel embodiment, the first lengths L1 of the first recesses 211 on the first body portion 210 increase or decrease successively along the first direction from one end to the other end of the first body portion 210.

[0104] In some embodiments, the second lengths L2 of the at least two second recesses 311 are different. When the second lengths L2 of the second recesses 311 are different, the lengths of the first connecting portions 220 cooperating with the second recesses 311 are also different.

[0105] In one embodiment, the second lengths L2 of the second recesses 311 arranged adjacently are different, and are arranged alternately in a long-short manner along the first direction. Alternatively, the second lengths L2 of the second recesses 311 in odd positions are longer, and the second lengths L2 of the second recesses 311 in even positions are shorter. Alternatively, the second lengths L2 of the second recesses 311 in even positions are longer, and the second lengths L2 of the second recesses 311 in odd positions are shorter.

[0106] In one parallel embodiment, the second lengths L2 of the second recesses 311 on the second body portion 310 increase or decrease successively along the first direction from one end to the other end of the second body portion 310.

[0107] In some embodiments, the first recesses 211 have first depths D1 along the direction perpendicular to the flexible display panel 100, and the first depths D1 of the at least two first recesses 211 are different. When the first depths D1 of the first recesses 211 are different, the first thicknesses H1 of the second connecting portions 320 cooperating with the first recesses 211 are also different.

[0108] In some embodiments, the second recesses 311 have second depths D2 along the direction perpendicular to the flexible display panel 100, and the second depths D2 of the at least two second recesses 311 are different. When the second depths D2 of the second recesses 311 are different, the second thicknesses H2 of the first connecting portions 220 cooperating with the second recesses 311 are also different.

[0109] In the present embodiment, the first support 200 and the second support 300 are laminated and fitted, the first body part 210 and the second body part 310 are arranged side by side in the second direction, and the bottom surface of the first body part 210 and the bottom surface of the second body part 310 are substantially in the same plane, i.e., the distance between the two bottom surfaces in the third direction is within an error range. The first recess 211 provides a space for accommodating the second connecting part 320, and the second recess 311 provides a space for accommodating the first connecting part 220. The top surface of the second connecting part 320 fitted in the first recess 211 and the top surface of the first connecting part 220 fitted in the second recess 311 are substantially in the same plane, i.e., the distance between the two top surfaces in the third direction is within an error range.

[0110] In other words, the maximum thickness of the first support 200 in the third direction is substantially equal to the maximum thickness of the second support 300 in the third direction, and substantially equal to the maximum thickness of the support mechanism 10 formed by laminating and fitting.

[0111] In the first state, the first point of the first body part 210 and the second point of the second body part 310 have a first distance therebetween; in the second state, the first point of the first body part 210 and the second point of the second body part 310 have a second distance therebetween, the second distance being greater than the first distance, and the first distance being greater than or equal to 0. The first point is as shown by point A in Figure 22 、 Figure 26 and Figure 33 The second point is as shown by point B in Figure 22 、 Figure 26 and Figure 33 For the convenience of identification, the first point and the second point are both circled with "O".

[0112] In one embodiment, as shown in Figure 22 , in the first state, the first body part 210 and the second body part 310 abut each other, so that the first distance between the first point A of the first body part 210 and the second point B of the second body part 310 is 0.

[0113] In another parallel embodiment, as shown in Figure 33 , in the first state, the first body part 210 and the second body part 310 are separated from each other, so that the first distance between the first point A of the first body part 210 and the second point B of the second body part 310 is greater than 0.

[0114] It should be noted that in the second state, as shown in Figure 25 and Figure 26 , the first body part 210 and the second body part 310 have a first gap J1 therebetween, and the first connecting part 220 and the second connecting part 320 are distributed in the first gap J1 in sequence. Figure 33In the first state shown in FIG. 1, the first body part 210 and the second body part 310 have a second gap J2 therebetween, and the length of the second gap J2 in the second direction is the first distance. In addition, the length of the first gap J1 in the second direction is greater than the length of the second gap J2 in the second direction.

[0115] When the flexible display panel 100 in the first state is stretched in the second direction, the first support part 200 and the second support part 300 move relatively in the second direction, the first connecting part 220 moves in the second recess part 311, and the first connecting part 220 originally not in the second recess part 311 moves into the second recess part 311, so that the second recess part 311 is always filled; at the same time, the second connecting part 320 moves in the first recess part 211, and the second connecting part 320 originally not in the first recess part 211 moves into the first recess part 211, so that the first recess part 211 is always filled, so that the area of the first support surface 201 of the first support part 200 and the area of the second support surface 301 of the second support part 300 are always equal, and the sum of the areas of the first support surface 201 and the second support surface 301 is always not less than the display area of the flexible display panel 100.

[0116] The number of the first connecting part 220 can be one or more according to requirements, and the number of the second connecting part 320 can be one or more according to requirements.

[0117] When the first connecting part 220 is provided with one, the first protruding strip part 212 is correspondingly provided with one, and the first recess part 211 is formed on one side or both sides of the first protruding strip part 212, so that the first support part 200 is in the shape of “L” or “T”. When the second connecting part 320 is provided with one, the second protruding strip part 312 is correspondingly provided with one, and the second recess part 311 is formed on one side or both sides of the first protruding strip part 212, so that the first support part 200 is in the shape of “L” or “T”.

[0118] Continuing to refer to FIGS. 1 and 2, Figure 15 and Figure 16 When the number of the first connecting part 220 is multiple, the first protruding strip part 212 is correspondingly provided with multiple, and the multiple first connecting parts 220 are arranged in sequence and at intervals in the first direction, and the adjacent first connecting parts 220 are hollowly arranged and form a first comb structure. Continuing to refer to FIGS. 1 and 2, Figure 17 and Figure 18 When the number of the second connecting part 320 is multiple, the second protruding strip part 312 is correspondingly provided with multiple, and the multiple second connecting parts 320 are arranged in sequence and at intervals in the first direction, and the adjacent second connecting parts 320 are hollowly arranged and form a second comb structure.

[0119] In some embodiments, continuing to refer to FIGS. 1 and 2,Figure 15 and Figure 16 As shown in FIG. 2A and FIG. 2B, the first connecting portion 220 includes a first flat portion 221 and a first curling portion 222 which can be curled. In the first state, the first flat portion 221 overlaps the second recessed portion 311 in the direction perpendicular to the flexible display panel 100; in the second state, at least part of the structure of the first curling portion 222 overlaps the second recessed portion 311.

[0120] Continuing to refer to Figure 17 and Figure 18 As shown in FIG. 2A and FIG. 2B, the second connecting portion 320 includes a second flat portion 321 and a second curling portion 322 which can be curled, and the second flat portion 321 overlaps the first recessed portion 211. In the first state, the second flat portion 321 overlaps the first recessed portion 211 in the direction perpendicular to the flexible display panel 100; in the second state, at least part of the structure of the second curling portion 322 overlaps the first recessed portion 211.

[0121] The first connecting portion 220 can be made of a single material. The first connecting portion 220 made of a single material not only has a lower cost, but also is easy to manufacture.

[0122] In one specific embodiment, the first connecting portion 220 is a flexible structure which can be bent as a whole, for example, the first connecting portion 220 is an integrally formed rubber strip.

[0123] In another specific embodiment, the first connecting portion 220 is a rigid structure which can be curled, and the first connecting portion 220 is a steel strip, similar to a “steel tape measure”.

[0124] Alternatively, the first connecting portion 220 can also be made of multiple materials.

[0125] In one embodiment, the first curling portion 222 and the first flat portion 221 are made of different materials. Optionally, the first curling portion 222 is a rubber strip, and the first flat portion 221 is a steel strip. The first connecting portion 220 made of rigid and flexible materials has both support stability and deformation flexibility.

[0126] In another specific embodiment, the first curling portion 222 includes multiple flexible strips which are connected in sequence, and at least part of the multiple flexible strips are made of different materials. For example, part of the multiple flexible strips are rubber strips, and part of the multiple flexible strips are silica gel strips.

[0127] In another specific embodiment, the first flat portion 221 includes multiple rigid strips which are connected in sequence, and at least part of the multiple rigid strips are made of different materials. For example, part of the multiple rigid strips are stainless steel strips, and part of the multiple rigid strips are low-carbon alloy steels with different compositions.

[0128] The second connecting part 320 can be made of a single material. The second connecting part 320 made of a single material not only has low cost, but also is convenient to manufacture.

[0129] In one specific embodiment, the second connecting part 320 is a flexible structure capable of bending as a whole, for example, the second connecting part 320 is a rubber strip integrally formed.

[0130] In another specific embodiment, the second connecting part 320 is a rigid structure capable of curling, and the second connecting part 320 is a steel strip, similar to a “steel tape measure”.

[0131] Alternatively, the second connecting part 320 is made of multiple materials.

[0132] In one specific embodiment, the second curling part 322 and the second straight part 321 are made of different materials. Alternatively, the second curling part 322 is a rubber strip, and the second straight part 321 is a steel strip. The second connecting part 320 made of rigid and flexible materials has both support stability and flexible deformation.

[0133] In another specific embodiment, the second curling part 322 includes multiple flexible strips connected in sequence, and at least part of the multiple flexible strips are made of different materials. For example, part of the multiple flexible strips are rubber strips, and part of the multiple flexible strips are silica gel strips.

[0134] In another specific embodiment, the second straight part 321 includes multiple rigid strips connected in sequence and capable of curling at least in part, and at least part of the multiple rigid strips are made of different materials. For example, part of the multiple rigid strips are stainless steel strips, and part of the multiple rigid strips are low-carbon alloy steels with different compositions.

[0135] It should be noted that the types and categories of the materials of the first connecting part 220 and the second connecting part 320 can be the same or different. That is, the first connecting part 220 and the second connecting part 320 can both be flexible strips, or both be rigid strips; or one of the first connecting part 220 and the second connecting part 320 can be a flexible strip, and the other can be a rigid strip; or one of the first connecting part 220 and the second connecting part 320 can be made of a single material, and the other can be made of multiple materials.

[0136] Continuing to refer to Figures 34 to 37 As shown, in order to provide power to the flexible display panel 100 which needs to be stretched and contracted on both sides, the curling assembly further includes a first rotating shaft 400 and a second rotating shaft 500. The first rotating shaft 400 is capable of moving along the second direction and rotating around its central axis (defined as the first axis). The second rotating shaft 500 is capable of moving along the second direction and rotating around its central axis (defined as the second axis).

[0137] Two end portions of the flexible display panel 100 are respectively laminated with two end portions of the support mechanism 10. Specifically, referring to Figure 34 As shown, the second portion 120 of the flexible display panel 100 is wound on the first rotating shaft 400, and the end portion of the first connecting portion 220 is also wound on the first rotating shaft 400. Under the action of an external force, the first rotating shaft 400 simultaneously moves in the second direction and rotates about the first axis, the movement in the second direction can simultaneously release and deploy the first connecting portion 220 and the flexible display panel 100 wound on the first rotating shaft 400, and the rotation about the first axis can push the first connecting portion 220 to relatively move with the second support 300.

[0138] Continuing to refer to Figure 34 As shown, the third portion 130 of the flexible display panel 100 is wound on the second rotating shaft 500, and the end portion of the second connecting portion 320 is also wound on the second rotating shaft 500. Under the action of an external force, the second rotating shaft 500 simultaneously moves in the second direction and rotates about the second axis, the movement in the second direction can simultaneously release and deploy the second connecting portion 320 and the flexible display panel 100 wound on the second rotating shaft 500, and the rotation about the second axis can push the second connecting portion 320 to relatively move with the first support 200.

[0139] It should be noted that the rotation direction of the first rotating shaft 400 is different from the rotation direction of the second rotating shaft 500, that is, when one of the first rotating shaft 400 and the second rotating shaft 500 rotates clockwise, the other rotates counterclockwise, so that the first support 200 and the second support 300 can move towards each other or move away from each other.

[0140] Continuing to refer to Figure 15 , Figure 16 and Figure 38 In order to improve the stability of driving, the first rotating shaft 400 is provided as a gear shaft, and at least part of the first connecting portion 220 is provided as a rack. Specifically, the first rotating shaft 400 is provided with a first toothed structure 410 and a first tooth groove 420 formed between the first toothed structure 410, and the first connecting portion 220 is provided with a second toothed structure 2221, and a second tooth groove 2222 is formed between adjacent second toothed structures 2221. The first toothed structure 410 and the first tooth groove 420 are engaged with the second toothed structure 2221 and the second tooth groove 2222. When the first rotating shaft 400 rotates about the first axis, the mutual engagement between the first rotating shaft 400 and the first connecting portion 220 can make the first connecting portion 220 stably expand or retract, and is not prone to slipping.

[0141] Continuing to refer to Figure 17 , Figure 18 and Figure 39As shown, the second rotating shaft 500 is a gear shaft, and at least part of the second connecting portion 320 is a rack. Specifically, the second rotating shaft 500 is provided with third toothed structures 510 and third tooth grooves 520 formed between the third toothed structures 510. As shown in the figure, the second connecting portion 320 is provided with fourth toothed structures 3221, and fourth tooth grooves 3222 are formed between adjacent fourth toothed structures 3221. The third toothed structures 510 and the third tooth grooves 520 are engaged with the fourth toothed structures 3221 and the fourth tooth grooves 3222. When the second rotating shaft 500 rotates around the second axis, the mutual engagement between the second rotating shaft 500 and the second connecting portion 320 can make the second connecting portion 320 stably expand or retract, and it is not easy to cause the sliding phenomenon. Figure 10 and Figure 11 As shown, the second connecting portion 320 is provided with fourth toothed structures 3221, and fourth tooth grooves 3222 are formed between adjacent fourth toothed structures 3221. The third toothed structures 510 and the third tooth grooves 520 are engaged with the fourth toothed structures 3221 and the fourth tooth grooves 3222. When the second rotating shaft 500 rotates around the second axis, the mutual engagement between the second rotating shaft 500 and the second connecting portion 320 can make the second connecting portion 320 stably expand or retract, and it is not easy to cause the sliding phenomenon.

[0142] The curling assembly further comprises a first driving mechanism (not shown in the figure), which is used to drive the relative movement of the first rotating shaft 400 in the second direction.

[0143] In one specific embodiment, the first driving mechanism is a mechanism capable of directly outputting linear motion, such as a linear motor, a gas cylinder, etc.; in another specific embodiment, the first driving mechanism is a combination of a power element capable of outputting rotating motion and a transmission structure capable of converting rotating motion into linear motion, such as a combination of a motor and a gear rack, a combination of a motor and a screw nut, etc.

[0144] In addition to being able to drive the first rotating shaft 400 to move in the second direction, the first driving mechanism can also drive the first rotating shaft 400 to rotate around the first axis. In one specific embodiment, the first driving mechanism includes a translation output module capable of outputting linear motion and a rotation output module capable of outputting rotating motion. The translation output module capable of outputting linear motion is the linear motor, the gas cylinder, the combination of the motor and the gear rack, the combination of the motor and the screw nut, etc. described above, and the rotation output module is a rotating motor provided on the output end of the translation output module. The motor shaft of the rotating motor can be directly connected with the first rotating shaft 400 coaxially, or can be transmissionally connected with the first rotating shaft 400 through a gear assembly.

[0145] The curling assembly further comprises a second driving mechanism (not shown in the figure), which is used to drive the relative movement of the second rotating shaft 500 in the second direction.

[0146] In one specific embodiment, the second driving mechanism is a mechanism capable of directly outputting linear motion, such as a linear motor, a gas cylinder, etc.; in another specific embodiment, the second driving mechanism is a combination of a power element capable of outputting rotating motion and a transmission structure capable of converting rotating motion into linear motion, such as a combination of a motor and a gear rack, a combination of a motor and a screw nut, etc.

[0147] The second driving mechanism can drive the second rotating shaft 500 to move relatively in the second direction and to rotate about the second axis. In a specific embodiment, the second driving mechanism comprises a translation output module capable of outputting linear motion and a rotation output module capable of outputting rotary motion. The translation output module is the linear motor, the combination of the motor and the gear rack, the combination of the motor and the screw nut, etc. described above. The rotation output module is a rotary motor arranged at the output end of the translation output module. The motor shaft of the rotary motor can be directly connected coaxially with the second rotating shaft 500 or connected with the second rotating shaft 500 through a gear assembly.

[0148] When the flexible display panel 100 is switched between the second state and the first state, the relative movement of the first support 200 and the second support 300 will inevitably cause wear to the flexible display panel 100. In order to protect the flexible display panel 100 and prolong the service life of the flexible display panel 100, the curling assembly further comprises a protective layer arranged between the flexible display panel 100 and the support mechanism 10.

[0149] In a specific embodiment, the protective layer is a silica gel layer. The silica gel layer is arranged between the flexible display panel 100 and the support mechanism 10, attached to the flexible display panel 100, and the two ends of the silica gel layer are wound around the first rotating shaft 400 and the second rotating shaft 500, respectively. The silica gel layer has a buffering effect, which can reduce the impact of external force on the flexible display panel 100, thereby playing a protective role.

[0150] It should be noted that the area of the protective layer is not less than the maximum support area of the support mechanism 10 after being unfolded. In this way, the flexible display panel 100 and the support mechanism 10 can be effectively isolated in all directions, thereby avoiding wear of the flexible display panel 100. In a specific embodiment, the protective layer completely covers the flexible display panel 100.

[0151] Of course, the protective layer can also be made of other materials according to requirements, and is not limited to a silica gel layer. The protective layer can be a single-layer structure or a multi-layer structure.

[0152] In another specific embodiment, the protective layer comprises a medium layer, a protective layer, and a silica gel layer. The medium layer can be a glue layer, and the protective layer can be attached to the flexible display panel 100 through the medium layer. The protective layer can be a tempered glass layer or a resin layer, which can improve the overall strength and impact resistance. The silica gel layer has a buffering effect.

[0153] To improve the support stability of the support mechanism 10 to the flexible display panel 100, the support mechanism 10 further comprises a third support member (not shown in the figure), which is arranged on the side of the first support member 200 and the second support member 300 away from the flexible display panel 100 in the third direction, and abuts with at least one of the first support member 200 and the second support member 300, so that the first support member 200 and the second support member 300 can abut with the protective layer to stably support the flexible display panel 100.

[0154] In a specific embodiment, the third support member comprises an elastic body and a support plate, the bottom end of the elastic body is fixedly arranged, and the top end of the elastic body is connected with the support plate. Under the action of the elastic body, the support plate elastically abuts on the first support member 200 and the second support member 300. Optionally, a plurality of third support members are arranged, and the plurality of third support members are arranged at intervals, for example, in a row and column arrangement. Optionally, the elastic body is a spiral spring, and the support plate is a rectangular plate.

[0155] Embodiment two:

[0156] The embodiment discloses a curling assembly, and the main difference between the structure of the curling assembly provided in the embodiment and the structure of the curling assembly provided in Embodiment one is that: 1, the unfolding and retracting modes of the flexible display panel 100 are different; 2, the structure of the support mechanism 10 is different.

[0157] In the embodiment, of the two end portions of the flexible display panel 100 in the second direction, one end portion (defined as a fixed end) is fixedly arranged and cannot be curled and unfolded, and the other end portion (defined as a movable end) can be curled and unfolded. When the flexible display panel 100 in the first state needs to be switched to the second state, the movable end of the flexible display panel 100 is stretched on one side, and the curled movable end can be unfolded in the second direction; when the flexible display panel 100 in the second state needs to be switched to the first state, the movable end of the flexible display panel 100 is retracted on one side, that is, the movable end of the flexible display panel 100 can be curled in the second direction.

[0158] As shown in Figures 40 to 42 The support mechanism 10 comprises a first support member 200 and a second support member 300 that cross and cooperate, and the first support member 200 and the second support member 300 can move relatively in the second direction. The first support member 200 and the second support member 300 are supported at the flexible display panel 100 along the third direction. The first support member 200 has a first support surface 201 facing the flexible display panel 100, and the second support member 300 has a second support surface 301 facing the flexible display panel 100.

[0159] When the flexible display panel 100 in the first state is unilaterally stretched in the second direction, one of the first support 200 and the second support 300 moves in the second direction away from the other. When the flexible display panel 100 in the second state is unilaterally contracted in the second direction, one of the first support 200 and the second support 300 moves in the second direction towards the other.

[0160] Regardless of whether in the second state or in the first state, the height difference between the first support surface 201 and the second support surface 301 in the direction perpendicular to the flexible display panel 100 is within the error range. That is, regardless of whether the first support surface 201 or the second support surface 301, the distance between the flexible display panel 100 is always within the allowable error range, so that the support plane composed of the first support surface 201 and the second support surface 301 can stably support the flexible display panel 100.

[0161] And, in the first state and the second state, the sum of the areas of the first support surface 201 and the second support surface 301 is not less than the display area of the flexible display panel 100. Optionally, in some embodiments, the ratio of the sum of the areas of the first support surface 201 and the second support surface 301 to the display area of the flexible display panel 100 is 1-1.2.

[0162] In one embodiment, the area of the first support surface 201 of the first support 200 and the area of the second support surface 301 of the second support 300 are always equal, and the sum of the areas of the first support surface 201 and the second support surface 301 is always not less than the display area of the flexible display panel 100.

[0163] In a parallel embodiment, the area of the first support surface 201 of the first support 200 is greater than the area of the second support surface 301 of the second support 300, and the sum of the areas of the first support surface 201 and the second support surface 301 is always not less than the display area of the flexible display panel 100.

[0164] In other words, the first support surface 201 and the second support surface 301 are always coplanar and do not overlap; wherein during the expansion process or the contraction process of the flexible display panel 100, the area of the first support surface 201 and the area of the second support surface 301 increase or decrease synchronously with the display area of the flexible display panel 100, and in the direction perpendicular to the flexible display panel 100, the projection of the first support surface 201 on the flexible display panel 100 and the projection of the second support surface 301 on the flexible display panel 100 cover the flexible display panel 100.

[0165] Compared with the prior art device which cannot realize full support of the flexible display panel, the support mechanism 10 can support the flexible display panel 100 of any length without gap, which improves the flatness of the flexible display panel 100 and the touch performance and strength uniformity of the flexible display panel 100.

[0166] It should be noted that the area of the first support surface 201 is smaller in the first state than in the second state, and the area of the second support surface 301 is smaller in the first state than in the second state. Since either end of the flexible display panel 100 can be used as a fixed end and the other end can be used as a movable end, the first support 200 is fixedly arranged, the second support 300 is movably arranged, and the end of the flexible display panel 100 corresponding to the first support 200 is defined as the fixed end, and the end of the flexible display panel 100 corresponding to the second support 300 is defined as the movable end.

[0167] Referring to Figure 40 The first support 200 arranged fixedly includes a first main body 210 and a first connecting portion 220 connected to each other, the first support surface 201 on the side of the first main body 210 facing the flexible display panel 100 is a plane, the fourth width W4 of the first connecting portion 220 in the first direction is smaller than the width of the first main body 210 in the first direction, so that one side of the first connecting portion 220 in the first direction forms a first gap. The top surface of the first main body 210 in the third direction and the top surface of at least part of the first connecting portion 220 in the third direction form the first support surface 201.

[0168] Referring to Figure 41 The second support 300 arranged movably includes a second main body 310 and a second connecting portion 320, the second main body 310 is provided with a second recess 311 penetrating in the second direction, in the first direction, the second main body 310 forms a second protruding strip portion 312 on the side of the second recess 311, the second protruding strip portion 312 is arranged adjacent to the second recess 311, and the second connecting portion 320 is connected to the second protruding strip portion 312. The top surface of the second main body 310 in the third direction and the top surface of the second connecting portion 320 in the third direction form the second support surface 301.

[0169] Referring to Figure 42As shown, when the first support 200 and the second support 300 are assembled into the support mechanism 10 in the first state, part of the first connecting portion 220 can be placed in the second recess 311, the second protruding block is filled in the first gap, and the second connecting portion 320 is hidden on the side of the first main body portion 210 away from the flexible display panel 100 as a whole. When the flexible display panel 100 is switched from the first state to the second state, the first connecting portion 220 located outside the second recess 311 gradually fills into the second recess 311, and the second connecting portion 320 gradually fills into the first gap with a gap.

[0170] Further, the first connecting portion 220 includes the first flat portion 221 and the first curled portion 222 connected to each other, and the second connecting portion 320 includes the second flat portion 321 and the second curled portion 322 connected to each other, and the second flat portion 321 is connected to the second protruding portion 312.

[0171] When the first support 200 and the second support 300 are assembled into the support mechanism 10 in the first state, the first flat portion 221 can be filled in the second recess 311, the second flat portion 321 is filled in the first gap, and the second curled portion 322 is hidden on the side of the second flat portion 321 away from the flexible display panel 100. When the flexible display panel 100 is in the second state, at least part of the first curled portion 222 is unfolded and filled into the second recess 311, and at least part of the second curled portion 322 is unfolded and filled into the first gap.

[0172] The number of the first connecting portion 220 and the number of the second connecting portion 320 have been introduced in Embodiment One, and will not be repeated here. The material of the first connecting portion 220 and the second connecting portion 320 has also been introduced in Embodiment One, and will not be repeated here.

[0173] In order to provide power for the flexible display panel 100 which needs to be stretched and contracted on one side, the curled assembly includes the first rotating shaft 400 and the third rotating shaft arranged at intervals, the first rotating shaft 400 can move along the second direction and rotate around the first axis, and the third rotating shaft can only rotate around the central axis of itself (defined as the third rotating shaft).

[0174] The movable end of the flexible display panel 100 and part of the first connecting portion 220 are wound on the first rotating shaft 400, the fixed end of the flexible display panel 100 is fixedly arranged on the first main body portion 210, and part of the second connecting portion 320 is wound on the third rotating shaft. Under the action of an external force, the first rotating shaft 400 simultaneously moves in the second direction and rotates about the first axis, so that the second connecting portion 320 wound on the first rotating shaft 400 and the movable end of the flexible display panel 100 are simultaneously released and unfolded; and with the rotation of the third rotating shaft, the third rotating shaft can release the second connecting portion 320 in the second direction by rotating about the third axis.

[0175] In order to improve the stability of driving, the first rotating shaft 400 is provided with the gear shaft in the first embodiment, and at least part of the first connecting portion 220 is provided with a rack. Specifically, the first rotating shaft 400 is provided with a first tooth-shaped structure 410 and a first tooth groove 420 formed between the first tooth-shaped structures 410, and the first connecting portion 220 is provided with a second tooth-shaped structure 2221, and a second tooth groove 2222 is formed between adjacent second tooth-shaped structures 2221. The first tooth-shaped structure 410 and the first tooth groove 420 are engaged with the second tooth-shaped structure 2221 and the second tooth groove 2222. When the first rotating shaft 400 rotates about the first axis, the mutual engagement between the first rotating shaft 400 and the first connecting portion 220 can make the first connecting portion 220 stably expand or retract, and the slipping phenomenon is not easy to occur.

[0176] The third rotating shaft is provided with the gear shaft, and at least part of the second connecting portion 320 is provided with the rack. Specifically, the third rotating shaft is provided with a fifth tooth-shaped structure and a fifth tooth groove formed between the fifth tooth-shaped structures, and the second connecting portion 320 is provided with a fourth tooth-shaped structure 3221, and a fourth tooth groove 3222 is formed between adjacent fourth tooth-shaped structures 3221. The fifth tooth-shaped structure and the fifth tooth groove are engaged with the fourth tooth-shaped structure 3221 and the fourth tooth groove 3222. When the third rotating shaft rotates about the third axis, the mutual engagement between the third rotating shaft and the second connecting portion 320 can make the second connecting portion 320 stably expand or retract, and the slipping phenomenon is not easy to occur.

[0177] The curling assembly further comprises a first driving mechanism for driving the first rotating shaft 400 to relatively move in the second direction. The specific structure of the first driving mechanism has been described in detail in the first embodiment, and will not be repeated here.

[0178] The curling assembly further comprises a third driving mechanism capable of driving the third rotating shaft to rotate about the third axis. Optionally, the third driving mechanism can be a rotary motor, and the motor shaft of the rotary motor can be directly connected with the third rotating shaft coaxially, or can be transmissionally connected with the third rotating shaft through a gear assembly.

[0179] When the flexible display panel 100 switches between the second state and the first state, the movement of the second support 300 relative to the first support 200 will inevitably cause abrasion to the flexible display panel 100. In order to protect the flexible display panel 100 and prolong the service life of the flexible display panel 100, the curling assembly further comprises a protective layer, which is arranged between the flexible display panel 100 and the support mechanism 10. The structure of the protective layer has been described in Embodiment One and will not be repeated here.

[0180] In order to improve the support stability of the support mechanism 10 to the flexible display panel 100, the support mechanism 10 further comprises a third support, which is arranged in the third direction on the side of the first support 200 and the second support away from the flexible display panel 100. The third support abuts against at least one of the first support 200 and the second support 300, so that the first support 200 and the second support 300 can abut against the protective layer and stably support the flexible display panel 100. The structure of the third support has been described in Embodiment One and will not be repeated here.

[0181] Embodiment Three

[0182] The curling assembly disclosed in the present embodiment is different from the curling assembly provided in Embodiment One in that the structure of the support mechanism 10 is different.

[0183] Referring to Figure 43 In the present embodiment, the first support 200 comprises a first main body 210 and a first connecting portion 220 connected to each other. The first support surface 201 of the first main body 210 on the side facing the flexible display panel 100 is a plane. The fourth width W4 of the first connecting portion 220 in the first direction is smaller than the width of the first main body 210 in the first direction, so that one side of the first connecting portion 220 in the first direction forms a first gap. The first connecting portion 220 comprises a first flat portion 221 and a first curling portion 222 connected to each other.

[0184] Referring to Figure 44 In the present embodiment, the second support 300 comprises a second main body 310 and a second connecting portion 320 connected to each other. The second support surface 301 of the second main body 310 on the side facing the flexible display panel 100 is a plane. The second width W2 of the second connecting portion 320 in the first direction is smaller than the width of the second main body 310 in the first direction, so that one side of the second connecting portion 320 in the first direction forms a second gap. The second connecting portion 320 comprises a second flat portion 321 and a second curling portion 322 connected to each other.

[0185] Referring to Figure 45As shown, in the first state, the first flat portion 221 fills in the second gap, the first curled portion 222 hides at the side of the first flat portion 221 away from the flexible display panel 100, the second flat portion 321 fills in the first gap, and the second curled portion 322 hides at the side of the second flat portion 321 away from the flexible display panel 100. In the second state, at least part of the first curled portion 222 is unfolded and fills in the second gap, and at least part of the second curled portion 322 is unfolded and fills in the first gap.

[0186] The number of the first connecting portions 220 and the number of the second connecting portions 320 have been introduced in Embodiment One, and will not be repeated here. The material of the first connecting portions 220 and the second connecting portions 320 have also been introduced in Embodiment One, and will not be repeated here.

[0187] In order to provide power for the flexible display panel 100 which needs to be stretched on one side and shrunk on one side, the curled assembly further comprises a first rotating shaft 400 and a second rotating shaft 500. The first rotating shaft 400 is capable of moving along the second direction and rotating around a first axis. The second rotating shaft 500 is capable of moving along the second direction and rotating around a second axis. One end of the flexible display panel 100 is wound around the first rotating shaft 400, and the other end of the flexible display panel 100 is wound around the second rotating shaft 500. The first rotating shaft 400 is capable of releasing the flexible display panel 100 in the second direction by rotating around the first axis, and the second rotating shaft 500 is capable of releasing the flexible display panel 100 in the second direction by rotating around the second axis.

[0188] In order to provide power for the relative movement of the first support 200 and the second support 300, the curled assembly further comprises a third rotating shaft and a fourth rotating shaft. The second connecting portions 320 are partially wound around the third rotating shaft, and the first connecting portions 220 are partially wound around the fourth rotating shaft. The third rotating shaft is capable of releasing the second connecting portions 320 in the second direction by rotating around a third axis, and the fourth rotating shaft is capable of releasing the first connecting portions 220 in the second direction by rotating around a fourth axis.

[0189] The curled assembly further comprises a first driving mechanism and a second driving mechanism. The first driving mechanism is used to drive the first rotating shaft 400, and the second driving mechanism is used to drive the second rotating shaft 500. The specific structure of the first driving mechanism and the second driving mechanism has been introduced in Embodiment One, and will not be repeated here.

[0190] The curled assembly further comprises a third driving mechanism and a fourth driving mechanism. The third driving mechanism is used to drive the third rotating shaft, and the fourth driving mechanism is used to drive the fourth rotating shaft. The specific structure of the third driving mechanism has been introduced in Embodiment Two, and will not be repeated here. The fourth driving mechanism can adopt the same mechanism as the third driving mechanism, and will not be described in detail here.

[0191] This is Example 4:

[0192] like Figures 46 to 49 As shown, based on Embodiments 1 to 3, this embodiment also provides a display device 1, which includes the roll-up component provided in Embodiments 1 to 3. By using the aforementioned roll-up component, the flexible display panel 100 of the display device 1 has high flatness after unfolding, and the user experience of touching the flexible display panel 100 is good.

[0193] like Figure 46 The diagram shows the display device 1 in the first state (i.e., the winding state) of the winding assembly in Embodiments 1 to 3. In this state, in Embodiment 1, the winding assembly is in... Figures 1 to 5 As shown, the flexible display panel 100 has the following characteristics: Figure 3 The smaller light-emitting surface shown is supported by the support mechanism 10. Figures 19 to 22 The state shown. In Embodiment 2, the support mechanism 10 is in the state shown. Figure 42 The state shown. In Embodiment 3, the support mechanism 10 is in the state shown. Figure 45 The state shown.

[0194] like Figure 47 The diagram shows the display device 1 when the curling component is in the second state (i.e., the unfolded state) in Embodiments 1 and 3. It should be noted that... Figure 47 The dashed lines in the diagram represent the boundary lines of the flexible display panel 100 when it is not unfolded (i.e., Figure 46 The solid boundary line at the corresponding position of the flexible display panel 100 shown in the figure, through the... Figure 46 The flexible display panel 100 shown can be stretched on both sides to allow it to expand to... Figure 47 The state shown.

[0195] In this state, in Embodiment 1, the curling component is in Figures 6 to 10 As shown, the flexible display panel 100 has the following characteristics: Figure 8 The larger light-emitting surface shown is supported by the support mechanism 10. Figures 23 to 26 The state shown. In Embodiment 3, the first support member 200 of the curling assembly is in the position shown. Figure 40 As shown, the second support member 300 is in the position indicated. Figure 41 The state shown.

[0196] like Figure 48 and Figure 49 The diagram shown illustrates the display device 1 when the curling component is in the second state (i.e., the unfolded state) in Embodiment 2. It should be noted that... Figure 48 The dashed lines in the diagram represent the boundary lines of the flexible display panel 100 when it is not unfolded (i.e., Figure 46the solid line boundary line at the corresponding position of the flexible display panel 100 shown in FIG. 1) by applying a single-side tension to the flexible display panel 100 shown in FIG. 1. Figure 46 The single-side tension applied to the flexible display panel 100 shown in FIG. 1 can cause the flexible display panel 100 to be unfolded to a state shown in FIG. 2. Figure 48 The single-side tension applied to the flexible display panel 100 shown in FIG. 1 can cause the flexible display panel 100 to be unfolded to a state shown in FIG. 2.

[0197] As shown in FIG. 1, the flexible display panel 100 is in a state of being rolled up. Figure 48 As shown in FIG. 1, the flexible display panel 100 is in a state of being rolled up. Figure 49 The difference between the structures shown in FIG. 1 and FIG. 2 is that the direction of the unfolding of the flexible display panel 100 is different. Figure 48 As shown in FIG. 1, the flexible display panel 100 is in a state of being rolled up. Figure 49 As shown in FIG. 1, the flexible display panel 100 is in a state of being rolled up. In Embodiment Two, the first support 200 of the roll assembly is in a state shown in FIG. 3, and the second support 300 is in a state shown in FIG. 4. Figure 43 As shown in FIG. 1, the flexible display panel 100 is in a state of being rolled up. In Embodiment Two, the first support 200 of the roll assembly is in a state shown in FIG. 3, and the second support 300 is in a state shown in FIG. 4. Figure 44 As shown in FIG. 1, the flexible display panel 100 is in a state of being rolled up. In Embodiment Two, the first support 200 of the roll assembly is in a state shown in FIG. 3, and the second support 300 is in a state shown in FIG. 4.

[0198] Obviously, the above embodiments of the present application are merely for the purpose of illustrating the present application clearly, and are not intended to limit the embodiments of the present application. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the scope of the present application. Here, it is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A crimping assembly characterized by, The flexible display panel and a support mechanism located away from a light-out surface of the flexible display panel; The support mechanism comprises a first support member and a second support member which are cross-fitted, the first support member has a first support surface close to the flexible display panel, the second support member has a second support surface close to the flexible display panel, and a height difference between the first support surface and the second support surface in a direction perpendicular to the flexible display panel is within an error range; The curling assembly has a first state and a second state, in the first state, the flexible display panel has a first surface in a direction perpendicular to a light-out direction, and in the second state, the flexible display panel has a second surface, an area of the first surface is smaller than an area of the second surface; In the first state, a sum of areas of the first support surface and the second support surface is not less than the area of the first surface, and in the second state, the sum of the areas of the first support surface and the second support surface is not less than the area of the second surface; The first support member has a first main body portion and a first connecting portion which are connected to each other, and the second support member has a second main body portion and a second connecting portion which are connected to each other; The first main body portion and the second connecting portion are arranged in a stacking manner in the light-out direction, the second main body portion and the first connecting portion are arranged in a stacking manner in the light-out direction, the first main body portion and the second main body portion are arranged side by side in a second direction, a bottom surface of the first main body portion and a bottom surface of the second main body portion are substantially located in a same plane, in the first state, the first main body portion and the second main body portion abut each other or are separated from each other along the second direction, and the second direction is parallel to the first surface or the second surface.

2. The crimp assembly of claim 1, wherein, An area of the first support surface is greater than or equal to an area of the second support surface.

3. The crimp assembly of claim 2, wherein, A plurality of the first connecting portions are arranged in a spaced manner along a first direction, and the first connecting portions are hollowed out; A plurality of the second connecting portions are arranged in a spaced manner along the first direction, and the second connecting portions are hollowed out; In the first state, a first point of the first main body portion and a second point of the second main body portion have a first distance therebetween, in the second state, the first point of the first main body portion and the second point of the second main body portion have a second distance therebetween, the second distance is greater than the first distance, and the first distance is greater than or equal to 0.

4. The crimp assembly of claim 3, wherein, The first main body portion has a first protruding strip portion connected to the first connecting portion, in the first direction, a side of the first protruding strip portion forms a first recess portion, and the first protruding strip portion is arranged adjacent to the first recess portion; The second main body portion has a second protruding strip portion connected to the second connecting portion, in the first direction, a side of the second protruding strip portion forms a second recess portion, and the second protruding strip portion is arranged adjacent to the second recess portion; The first protruding strip portion and at least part of the first connecting portion constitute the first support surface, and the second protruding strip portion and at least part of the second connecting portion constitute the second support surface. In the first state, at least part of the first connecting portion is filled in the second recess, and at least part of the second connecting portion is filled in the first recess.

5. The crimp assembly of claim 4, wherein, The area of the first support surface in the first state is smaller than the area in the second state, and the area of the second support surface in the first state is smaller than the area in the second state.

6. The crimp assembly of claim 4, wherein, In a direction perpendicular to the flexible display panel, a first depth D1 of the first recess is equal to a first thickness H1 of the second connecting portion filled in the first recess, and a second depth D2 of the second recess is equal to a second thickness H2 of the first connecting portion filled in the second recess.

7. The crimp assembly of claim 4, wherein, In a direction perpendicular to the flexible display panel, a maximum thickness D of the first main body portion is equal to a sum of the second thickness H2 of the first connecting portion and a third thickness H3 of the second recess filled by the first connecting portion.

8. The crimp assembly of claim 5, wherein, In the first direction, a ratio of a first width W1 of the first recess to a second width W2 of the second connecting portion filled in the first recess is between 1-10:9, and a ratio of a third width W3 of the second recess to a fourth width W4 of the first connecting portion filled in the second recess is between 1-10:

9.

9. The crimp assembly of claim 7, wherein, In the first direction, the fourth width W4 of the first connecting portion is equal to a fifth width W5 of the first protruding strip portion connected thereto, and the second width W2 of the second connecting portion is equal to a sixth width W6 of the second protruding strip portion connected thereto.

10. The crimp assembly of claim 4, wherein, In the first state, the first main body portion and the second main body portion are in contact. In the second direction, the first recess has a first length L1, and the first lengths L1 of at least two first recesses are different; and the second recess has a second length L2, and the second lengths L2 of at least two second recesses are different.

11. The crimp assembly of claim 10, wherein, In the first direction, the first lengths L1 of the first recesses arranged adjacently are different and arranged alternately in a long-short manner. In the first direction, the second lengths L2 of the second recesses arranged adjacently are different and arranged alternately in a long-short manner.

12. The crimp assembly of claim 10, wherein, In the first direction, from one end of the first main body portion to the other end, the first lengths L1 of the first recesses on the first main body portion sequentially increase or sequentially decrease. In the first direction, from one end of the second main body portion to the other end, the second lengths L2 of the second recesses on the second main body portion sequentially increase or sequentially decrease.

13. The crimp assembly of claim 4, wherein, In a direction perpendicular to the flexible display panel, the first recess has a first depth D1, and the first depths D1 of at least two first recesses are different. In a direction perpendicular to the flexible display panel, the second recess has a second depth D2, and the second depths D2 of at least two second recesses are different.

14. The crimp assembly of claim 3, wherein, In the second state, the first main body portion and the second main body portion have a first gap J1 therebetween, and the first connecting portion and the second connecting portion are distributed in the first gap J1 in sequence.

15. The crimp assembly of claim 4, wherein, The first connecting portion comprises a first flat portion and a first curled portion connected to each other. The second connecting part comprises a second flat part and a second curling part connected with each other; In the first state, the first flat part overlaps with the second recess part and the second flat part overlaps with the first recess part in the direction perpendicular to the flexible display panel; In the second state, the first curling part at least partially overlaps with the second recess part and the second curling part at least partially overlaps with the first recess part.

16. The crimp assembly of claim 15, wherein, The first body part and the first flat part are rigid structures, the second body part and the second flat part are rigid structures, and the first curling part and the second curling part comprise curling materials.

17. The crimp assembly of claim 16, wherein, The first curling part and the second curling part are rubber strips. The first flat part and the second flat part are steel strips.

18. The crimp assembly of claim 16, wherein, The first flat part and the second flat part each comprise a plurality of rigid strips connected in sequence, and at least part of the plurality of rigid strips are made of different materials. The first curling part and the second curling part each comprise a plurality of flexible strips connected in sequence, and at least part of the plurality of flexible strips are made of different materials.

19. The crimp assembly of claim 16, wherein, The curling assembly further comprises a first rotating shaft and a second rotating shaft arranged at two ends, the first rotating shaft is provided with a first tooth-shaped structure and a first tooth groove formed between the first tooth-shaped structures, and the second rotating shaft is provided with a third tooth-shaped structure and a third tooth groove formed between the third tooth-shaped structures. The first curling part is provided with a second tooth-shaped structure, and a second tooth groove is formed between the second tooth-shaped structures, the second curling part is provided with a fourth tooth-shaped structure, and a fourth tooth groove is formed between the fourth tooth-shaped structures. The first tooth-shaped structure and the first tooth groove are engaged with the second tooth-shaped structure and the second tooth groove. The third tooth-shaped structure and the third tooth groove are engaged with the fourth tooth-shaped structure and the fourth tooth groove.

20. The crimp assembly of claim 19, wherein, The flexible display panel comprises a first part, a second part and a third part connected with the first part and arranged at two ends of the first part; In the first state, the first part overlaps with the first body part and the second body part, the second part overlaps with the first curling part, and the third part overlaps with the second curling part in the direction perpendicular to the flexible display panel.

21. The crimp assembly of claim 19, wherein, The curling assembly further comprises a first driving mechanism for driving the first rotating shaft to relatively move in a second direction. The curling assembly further comprises a second driving mechanism for driving the second rotating shaft to relatively move in the second direction.

22. The crimp assembly of claim 1, wherein, The curling assembly further comprises a protective layer arranged between the flexible display panel and the supporting mechanism.

23. A display device, characterized by The curling assembly comprises any one of claims 1-22.

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