Slide and display device

Abstract

The present invention provides a sliding device, comprising a main body and a sliding support part, wherein the sliding support part is arranged around the main body and is used to at least support the sliding and rolling area of ​​the flexible screen; the sliding support part comprises a plurality of strip support members, wherein the plurality of strip support members are arranged in parallel and spaced apart; the arrangement direction of the plurality of strip support members forms an angle greater than 0° and less than 180° with the length direction of the strip support members; the arrangement direction of the plurality of strip support members is the same as the sliding direction of the flexible screen; the sliding device further comprises a flexible support sheet, which is located on the side of the sliding support part away from the main body and is connected to the sliding support part; the side of the flexible support sheet away from the sliding support part is used to set the flexible screen; a first hole array is provided on the flexible support sheet at least in the area corresponding to the sliding support part, and the orthographic projection of the first hole array on the sliding support part is at least located in the spaced area between the strip support members. The sliding device prevents the strip support members from peeling off from the flexible screen during the sliding and rolling process.

Description

Technical Field

[0001] The invention belongs to the field of display technology, and in particular relates to a sliding roll device and a display device. Background Art

[0002] At present, flexible screens that can be slid and rolled up are widely used and are very popular among people.

[0003] In the related art, the flexible screen is rolled up and unfolded by sliding around a U-shaped track, and the flexible screen is supported by a strip support during the sliding and rolling process. The strip support fits tightly with the flexible screen, but because the flexible screen is a multi-layer film stacking structure, the flexible screen sliding to the U-shaped track will generate a large rebound force during the sliding and rolling process of the flexible screen. As the sliding and rolling movement proceeds, it is easy to cause delamination and debonding between the strip support and the flexible screen, resulting in peeling between the strip support and the flexible screen; causing the sliding and rolling of the flexible screen to jam, and the flexible screen to display poorly. Summary of the invention

[0004] In view of the above problems, the present invention provides a sliding roll device for assisting a flexible screen in sliding roll-up and unfolding, comprising a main body and a sliding roll support portion, wherein the sliding roll support portion is arranged around the main body and is used to at least support the sliding roll-up area of ​​the flexible screen;

[0005] The sliding support portion includes a plurality of strip support members, and the plurality of strip support members are arranged in parallel and spaced apart; the arrangement direction of the plurality of strip support members forms an angle greater than 0° and less than 180° with the length direction of the strip support members; the arrangement direction of the plurality of strip support members is the same as the sliding direction of the flexible screen;

[0006] The sliding device further comprises a flexible support sheet, which is located on a side of the sliding support portion away from the main body portion and connected to the sliding support portion; the side of the flexible support sheet away from the sliding support portion is used to set the flexible screen;

[0007] The flexible support sheet is provided with a first hole array at least in a region corresponding to the sliding support portion, and the orthographic projection of the first hole array on the sliding support portion is at least located in the spacing region between the strip-shaped support members.

[0008] Optionally, a row of the first holes is distributed in the spacing area between any two adjacent strip-shaped support members.

[0009] Optionally, each column of the first holes is located on the midline of the spacing area between two adjacent strip-shaped support members;

[0010] The center line of the spacing area between the strip-shaped support members is parallel to the length direction of the strip-shaped support members.

[0011] Optionally, two rows of the first holes are distributed in the spacing area between any two adjacent strip-shaped support members.

[0012] Optionally, in the two rows of the first holes located in the spacing area between the two strip-shaped support members, the first side edge of the first holes in the first row is flush with the first side edge of one of the strip-shaped support members adjacent thereto; and the second side edge of the first holes in the second row is flush with the second side edge of another of the strip-shaped support members adjacent thereto;

[0013] The first side edge of the first hole in the first column and the first side edge of one of the strip-shaped support members are adjacent edges of the first hole in the first column and the strip-shaped support member;

[0014] The second side edge of the first holes in the second column and the second side edge of another of the strip-shaped support members are adjacent edges of the first holes in the second column and the strip-shaped support members.

[0015] Optionally, the flexible support sheet comprises a first area, a second area and a third area, and the first area, the second area and the third area are arranged in sequence along the length direction of the strip-shaped support member;

[0016] The distribution density of the first holes in the first zone and the third zone is smaller than the distribution density of the first holes in the second zone.

[0017] Optionally, in the first area, the second area and the third area, at least one row of the first holes is distributed in the interval area between any two adjacent strip-shaped support members;

[0018] In the second area, each of the strip-shaped support members is further provided with at least one row of the first holes within the orthographic projection area on the main body.

[0019] Optionally, in the second area, each column of the first holes distributed in the orthographic projection area of ​​the strip-shaped support members and each column of the first holes distributed in the spacing area between any two adjacent strip-shaped support members are at least partially staggered in the same row direction.

[0020] Optionally, in the first area, the second area and the third area, at least one row of the first holes is distributed in the interval area between any two adjacent strip-shaped support members;

[0021] In the second area, at least one second hole is distributed in the interval area between any two adjacent rows of the first holes;

[0022] The second hole extends along the sliding direction of the flexible screen.

[0023] Optionally, the second hole comprises a strip-shaped slit hole,

[0024] The length of the second hole is the length of a row of the first hole array.

[0025] Optionally, the first hole comprises a strip-shaped slit hole; the length direction of the first hole is parallel to the length direction of the strip-shaped support member;

[0026] The width of the first hole ranges from 0.1 to 0.5 mm, and the length of the first hole ranges from 3 to 10 mm.

[0027] Optionally, the flexible screen further includes a flattening keeping area; the flattening keeping area is spliced ​​with the sliding and rolling area;

[0028] The sliding and rolling support portion and the sliding and rolling area overlap with the orthographic projection on the main body;

[0029] The sliding and rolling device further comprises a fixed support plate, which is located on the main body and is used to support the flattening holding area;

[0030] The orthographic projections of the fixed support plate and the sliding support portion on the main body portion do not overlap;

[0031] The flexible support sheet also extends to a side of the fixed support plate away from the main body, and the flexible support sheet is connected to the fixed support plate;

[0032] The area of ​​the flexible supporting sheet corresponding to the fixed supporting plate is planar.

[0033] Optionally, the main body comprises a fixed housing, a sliding housing and a sliding track, the sliding housing is movably connected to the fixed housing via the sliding track, the sliding housing can be received into the fixed housing via the sliding track and be buckled with the fixed housing, and the sliding housing can be pulled out of the fixed housing via the sliding track and separated from the fixed housing;

[0034] The sliding and rolling device also includes a hook structure connected to both ends of the strip-shaped support member;

[0035] The hook structure includes a moving part and a card platform, the moving part is fixedly connected or movably connected to the card platform, the moving part is nested in the sliding track, and can slide or roll along the sliding track; the card platform is used to accommodate the edges of the flexible support sheet and the flexible screen and form support for them;

[0036] When the sliding roll device is in a reeled state, the sliding roll support portion, the flexible support sheet and the fixed support plate are accommodated in a space formed by the fastening of the fixed housing and the sliding housing;

[0037] When the sliding roll device is in an unfolded state, the sliding roll support portion and the flexible support sheet are flattened as the hook structure moves along the drawn-out sliding track.

[0038] Optionally, it further comprises a flexible spacer layer, which is located on a side of the flexible support sheet away from the sliding support portion;

[0039] The flexible spacer layer is connected to the flexible support sheet; a side of the flexible spacer layer facing away from the flexible support sheet is used to set the flexible screen.

[0040] Optionally, the flexible support sheet is made of any one of carbon fiber, stainless steel, and titanium alloy;

[0041] The flexible spacer layer is made of any one of foam, polyethylene terephthalate plastics and polyimide.

[0042] The present invention also provides a display device, comprising the above-mentioned sliding and rolling device, and also comprising a flexible screen;

[0043] The flexible screen is arranged on a side of the flexible support sheet in the sliding and rolling device away from the sliding and rolling support portion, and the sliding and rolling device can assist the flexible screen in sliding, rolling and unfolding.

[0044] Beneficial effects of the present invention: The sliding and rolling device provided by the present invention, by providing a first hole array on the flexible support sheet at least in the area corresponding to the sliding and rolling support part, can, on the one hand, reduce the rebound force of the flexible support sheet during the sliding and rolling process, and avoid excessive peeling force at the connection interface between it and the strip support member (that is, the bonding interface between the adhesive layer and the flexible support sheet) during the sliding and rolling process; on the other hand, it can also reduce the rebound force of the flexible screen during the sliding and rolling process, and reduce the peeling risk between the connection interface between the flexible support sheet and the strip support member (that is, the bonding interface between the adhesive layer and the sliding and rolling support part); by making the orthographic projection of the first hole array on the sliding and rolling support part at least located in the interval area between the strip support members, it can ensure that the bonding area between the adhesive layer and the flexible support sheet is maximized, and reduce the risk of peeling due to the small bonding area of ​​the bonding interface between the adhesive layer and the flexible support sheet; thereby ultimately avoiding peeling between the strip support member and the flexible screen during the sliding and rolling process.

[0045] The display device provided by the present invention, by adopting the above-mentioned sliding and rolling device, can avoid the peeling of the sliding and rolling support part and the flexible screen during the sliding and rolling process while realizing the sliding and rolling of the flexible screen, thereby ensuring that the flexible screen will not be stuck during the sliding and rolling process, and further ensuring that the flexible screen will not have poor display during the sliding and rolling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1aIt is a schematic diagram of the flexible screen in a closed state;

[0047] Figure 1b It is a schematic diagram of the state of the display surface when the flexible screen is in a closed state;

[0048] Figure 1c It is a schematic diagram of the flexible screen in the unfolded state;

[0049] Figure 1d It is a schematic diagram of the local structure of the end of the U-shaped track;

[0050] Figure 1e A schematic diagram of peeling between the strip support and the flexible screen at the U-shaped track;

[0051] Figure 2 Schematic diagram of the stacking structure of the sliding and rolling device and the flexible screen in the unfolded state according to an embodiment of the present invention;

[0052] Figure 3 It is a schematic diagram of the back structure of the sliding and rolling device in the unfolded state according to an embodiment of the present invention;

[0053] Figure 4 It is a front structural schematic diagram of the fixed support plate and the sliding support part in the unfolded state according to the embodiment of the present invention;

[0054] Figure 5a This is a schematic diagram of the front structure of a flexible support sheet in an embodiment of the present invention;

[0055] Figure 5b This is a schematic diagram of the back structure of a sliding roll device in an embodiment of the present invention;

[0056] Figure 6a is a schematic diagram of the front structure of another flexible support sheet in an embodiment of the present invention;

[0057] Figure 6b It is a schematic diagram of the back structure of another sliding roll device in an embodiment of the present invention;

[0058] Figure 7a is a front structural schematic diagram of yet another flexible support sheet in an embodiment of the present invention;

[0059] Figure 7b for Figure 7a The enlarged schematic diagram of the P part;

[0060] Figure 7c for Figure 7a A further enlarged schematic diagram of the second area in the middle P portion;

[0061] Figure 8a is a front structural schematic diagram of yet another flexible support sheet in an embodiment of the present invention;

[0062] Figure 8b for Figure 8a A magnified schematic diagram of the middle Q section;

[0063] Figure 8c for Figure 8a A further enlarged schematic diagram of the middle Q part;

[0064] Figure 8d This is a schematic diagram of the back structure of another sliding roll device in an embodiment of the present invention;

[0065] Fig. 9 It is an exploded schematic diagram of the cooperation between the hook structure on the strip support and the sliding track at a viewing angle in an embodiment of the present invention;

[0066] Fig.10 It is a schematic diagram of the cooperation between the hook structure on the strip support and the sliding track at another viewing angle in the embodiment of the present invention;

[0067] Fig.11 This is a schematic diagram of the front structure of a flexible screen provided on the sliding and rolling device in an embodiment of the present invention;

[0068] Fig.12 It is a schematic diagram of the side structure of a flexible screen provided on the sliding and rolling device in an embodiment of the present invention.

[0069] The accompanying drawings are denoted as follows:

[0070] 1. Flexible screen; 101. Sliding and rolling area; 102. Keeping flat area; 2. Sliding and rolling support part; 21. Strip support member; 3. Flexible support sheet; 30. First hole; 31. Second hole; 301. First area; 302. Second area; 303. Third area; 4. Adhesive layer; 5. Fixed support plate; 6. Fixed housing; 7. Sliding housing; 8. Sliding track; 9. Hook structure; 91. Moving part; 92. Card table; 10. Flexible spacer layer. DETAILED DESCRIPTION

[0071] In order to enable those skilled in the art to better understand the technical solution of the present invention, a sliding device and a display device of the present invention are further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0072] In related technologies, such as Figure 1a-Figure 1e As shown, the flexible screen that can be rolled up and unfolded has two display states: Figure 1a It is a schematic diagram of the flexible screen in a closed state; Figure 1b Schematic diagram of the display surface when the flexible screen is in a closed state; at this time, the display surface of the flexible screen 1 is partially flattened, and the display surface area is relatively small, such as the flexible screen 1 can be used as a mobile phone screen for display; Figure 1cIt is a schematic diagram of the flexible screen in the unfolded state; at this time, the display surface of the flexible screen 1 is fully unfolded, and the display surface area is relatively large, such as the flexible screen 1 can be used as a tablet computer for display.

[0073] like Figure 1d and Figure 1e As shown, the sliding reeling and unfolding of the flexible screen 1 is achieved by sliding the flexible screen 1 along a U-shaped track. During the sliding, reeling and unfolding process of the flexible screen 1 along the U-shaped track, the flexible screen 1 is supported by a strip support 21 arranged on the track to achieve its sliding along the U-shaped track. The strip support 21 fits tightly with the flexible screen 1, but because the flexible screen 1 is a multi-layer film stacking structure, during the sliding and reeling process of the flexible screen 1, the flexible screen 1 sliding to the U-shaped track will generate a large rebound force. As the sliding and reeling movement proceeds, it is easy to cause delamination between the strip support 21 and the flexible screen 1, resulting in peeling between the strip support 21 and the flexible screen 1; causing the sliding and reeling of the flexible screen 1 to become stuck, and the flexible screen 1 to display poorly.

[0074] It should be noted that the front of the rolling device, the front of the rolling support part, and the front of the flexible support sheet in the drawings of the embodiments of the present invention refer to the side surface of the device or the corresponding component on which the flexible screen is provided; the back of the rolling device, the back of the rolling support part, and the back of the flexible support sheet in the drawings refer to the side surface of the device or the corresponding component opposite to the side surface on which the flexible screen is provided. In addition, since the main body in the rolling device of the present invention is not a major improved component, the structure of the main body is not shown in the front and back schematic diagrams of the device or the corresponding component in the embodiments of the present invention.

[0075] In order to solve the problem that the flexible screen is prone to delamination and peeling from the strip support during the sliding and rolling process, an embodiment of the present invention provides a sliding and rolling device, such as Figure 2-Figure 4 As shown, it is used to assist the flexible screen 1 in sliding reeling and unfolding, and includes a main body and a sliding support part 2, the sliding support part 2 is arranged around the main body, and is used to form support for at least the sliding reeling area 101 of the flexible screen 1; the sliding support part 2 includes a plurality of strip support members 21, and the plurality of strip support members 21 are arranged in parallel and spaced apart; the arrangement direction of the plurality of strip support members 21 and the length direction of the strip support members 21 form an angle greater than 0° and less than 180°; the arrangement direction of the plurality of strip support members 21 is the same as the sliding direction L of the flexible screen 1; the sliding device also includes a flexible support sheet 3, which is located on the side of the sliding support part 2 away from the main body and is connected to the sliding support part 2; the side of the flexible support sheet 3 away from the sliding support part 2 is used to set the flexible screen 1; a first hole 30 array is opened on the flexible support sheet 3 at least in the area corresponding to the sliding support part 2, and the orthographic projection of the first hole 30 array on the sliding support part 2 is at least located in the interval area between the strip support members 21.

[0076] Among them, the main body is used to form support for the sliding support part 2. The strip support member 21 can be made of a material with a certain strength, such as a steel bar. The sliding support part 2 is formed by a plurality of strip support members 21 arranged in parallel and spaced apart, which can realize the flexible winding of the sliding support part 2 along the sliding direction of the flexible screen 1, thereby facilitating the formation of support for the sliding and winding flexible screen 1 during the sliding process. The flexible support sheet 3 and the sliding support part 2 are bonded and connected by an adhesive layer 4. The flexible screen 1 is bonded and connected to the side of the flexible support sheet 3 away from the sliding support part 2. The first hole 30 array on the flexible support sheet 3 can be a uniformly distributed first hole 30 array, or it can be an unevenly distributed first hole 30 array. The first hole 30 is preferably a through hole opened on the flexible support sheet 3. Of course, the first hole 30 can also be a blind hole opened on the flexible support sheet 3.

[0077] Optionally, the flexible support sheet 3 is made of a highly elastic metal sheet, such as any one of carbon fiber, stainless steel, and titanium alloy. Optionally, the thickness of the flexible support sheet 3 is in the range of 0.03 to 0.2 mm.

[0078] Optionally, the strip support members 21 have a width ranging from 0.3 to 2.5 mm, a thickness ranging from 0.2 to 1.0 mm, any adjacent strip support members 21 are arranged at equal intervals, and a width ranging from 0.3 to 1.5 mm is provided in the interval area between adjacent strip support members 21 .

[0079] In this embodiment, by providing a first hole 30 array on the flexible support sheet 3 at least in the area corresponding to the sliding support part 2, on the one hand, the rebound force of the flexible support sheet 3 during the sliding and winding process can be reduced, thereby avoiding excessive peeling force at the connection interface A between the flexible support sheet 3 and the strip support member 21 (i.e., the bonding interface between the adhesive layer 4 and the flexible support sheet 3) during the sliding and winding process; on the other hand, the rebound force of the flexible screen 1 during the sliding and winding process can be reduced, thereby reducing the risk of peeling at the connection interface B between the flexible support sheet 3 and the strip support member 21 (i.e., the bonding interface between the adhesive layer 4 and the sliding support part 2); by making the orthographic projection of the first hole 30 array on the sliding support part 2 at least located in the interval area between the strip support members 21, it can ensure that the bonding area between the adhesive layer 4 and the flexible support sheet 3 is maximized, thereby reducing the risk of peeling due to the bonding area of ​​the bonding interface A between the adhesive layer 4 and the flexible support sheet 3 being too small; thereby ultimately avoiding peeling between the strip support member 21 and the flexible screen 1 during the sliding and winding process.

[0080] Optionally, the flexible screen 1 also includes a flattening area 102; the flattening area 102 is spliced ​​with the sliding and rolling area 101; the sliding and rolling support part 2 coincides with the orthographic projection of the sliding and rolling area 101 on the main body; the sliding and rolling device also includes a fixed support plate 5, which is located on the main body and is used to support the flattening area 102; the orthographic projections of the fixed support plate 5 and the sliding and rolling support part 2 on the main body do not overlap; the flexible support sheet 3 also extends to the side of the fixed support plate 5 away from the main body, and the flexible support sheet 3 is connected to the fixed support plate 5; the area of ​​the flexible support sheet 3 corresponding to the fixed support plate 5 is planar.

[0081] The flattening area 102 of the flexible screen 1 is always kept in a flat state, so the flattening area 102 does not need to be supported by the sliding support part 2, but is fixedly supported by the fixed support plate 5. The fixed support plate 5 is bonded to the flexible support sheet 3 by adhesive.

[0082] In this embodiment, by providing the sliding support portion 2 and the fixed support plate 5 on the main body, the flattening area 102 of the flexible screen 1 can be kept flat all the time, and the sliding retracting area 101 of the flexible screen 1 can also be slidably rolled up and unfolded, so as to achieve the following Figure 1a The closed state of the flexible screen and Figure 1c The flexible screen is in an unfolded state, thereby realizing partial flattening display and full flattening display of the display surface of the flexible screen 1, making the application scenarios of the flexible screen 1 more extensive.

[0083] Alternatively, if Figure 5a and Figure 5b As shown, a row of first holes 30 is distributed in the spacing area between any two adjacent strip-shaped support members 21 .

[0084] Optionally, each column of first holes 30 is located on the midline of the spacing area between two adjacent strip support members 21; the midline of the spacing area between the strip support members 21 is parallel to the length direction of the strip support member 21. In this embodiment, the first hole 30 is located in the middle of the spacing area between the strip support members 21, and the strip support member 21 is not provided with the first hole 30 in the orthographic projection area on the main body, which can reduce the rebound force of the flexible screen 1 during the sliding and rolling process, and reduce the risk of peeling between the connection interface B between the flexible support sheet 3 and the strip support member 21 (i.e., the bonding interface between the adhesive layer 4 and the sliding support part 2); it can also ensure that the bonding area between the adhesive layer 4 and the flexible support sheet 3 is maximized, and reduce the risk of peeling due to the bonding area of ​​the bonding interface A between the adhesive layer 4 and the flexible support sheet 3 being too small; thereby ultimately avoiding the strip support member 21 and the flexible screen 1 from peeling during the sliding and rolling process.

[0085] Alternatively, if Figure 6a and Figure 6bAs shown, two rows of first holes 30 are distributed in the spacing area between any two adjacent strip-shaped support members 21 .

[0086] Optionally, in the two columns of first holes 30 located in the spacing area between two strip support members 21, the first side edge of the first column of first holes 30 is flush with the first side edge of a strip support member 21 adjacent to it; the second side edge of the second column of first holes 30 is flush with the second side edge of another strip support member 21 adjacent to it; the first side edge of the first column of first holes 30 and the first side edge of one strip support member 21 are adjacent edges of the first column of first holes 30 and the strip support member 21; the second side edge of the second column 30 first holes and the second side edge of another strip support member 21 are adjacent edges of the second column of first holes 30 and the strip support member 21.

[0087] In this embodiment, two rows of first holes 30 are arranged in the interval area between two adjacent strip support members 21, which can further reduce the rebound force of the flexible screen 1 during the sliding and rolling process; the first side edge of the first hole 30 in the first row is flush with the first side edge of a strip support member 21 close to it; the second side edge of the first hole 30 in the second row is flush with the second side edge of another strip support member 21 close to it; the edge stress concentration of the flexible support sheet 3 during sliding and rolling can be reduced, thereby reducing the edge stress concentration of the flexible screen 1 during sliding and rolling.

[0088] Alternatively, if Figure 7a , Figure 7b and Figure 7c As shown, the flexible support sheet 3 includes a first zone 301, a second zone 302 and a third zone 303, and the first zone 301, the second zone 302 and the third zone 303 are arranged in sequence along the length direction of the strip support member 21; the distribution density of the first holes 30 in the first zone 301 and the third zone 303 is less than the distribution density of the first holes 30 in the second zone 302.

[0089] Optionally, in the first zone 301, the second zone 302 and the third zone 303, at least one row of first holes 30 is distributed in the spacing area between any two adjacent strip-shaped support members 21; in the second zone 302, each strip-shaped support member 21 also has at least one row of first holes 30 distributed in the orthographic projection area on the main body.

[0090] Among them, the first zone 301 and the third zone 303 are respectively located at the edge areas of the two ends of the flexible support sheet 3 along the length direction of the strip support member 21. The test results show that the peeling phenomenon between the edge areas of the two ends of the flexible support sheet 3 along the length direction of the strip support member 21 and the strip support member 21 during the sliding and winding process is more serious than that of the second zone 302. In order to improve or avoid the peeling phenomenon of the edge areas at both ends of the flexible support sheet 3, it is necessary to increase the effective bonding area between the first zone 301 and the third zone 303 and the strip support member 21. The opening areas of the first zone 301 and the third zone 303 on the flexible support sheet 3 are small, which can ensure the effective bonding area of ​​the connection interface A between the flexible support sheet 3 and the strip support member 21, and the constraint force arm of the flexible support sheet 3 along the direction perpendicular to the main body is short, so that it can better overcome the rebound force of the edge of the flexible support sheet 3 during the sliding and winding process, and then better overcome the rebound force of the edge of the flexible screen 1 during the sliding and winding process, and better improve or avoid the peeling phenomenon between the edge areas at both ends of the flexible support sheet 3 and the strip support member 21. The second area 302 is far away from the edge areas of both ends of the flexible support sheet 3 along the length direction of the strip support member 21. On the one hand, the rigidity of the strip support member 21 corresponding to the second area 302 is limited. On the other hand, the second area 302 of the flexible support sheet 3 and the area corresponding to the second area 302 of the flexible screen 1 are prone to arching during the sliding and winding process. In order to further reduce the rebound force of the second area 302 of the flexible support sheet 3 and the area corresponding to the second area 302 of the flexible screen 1 during the sliding and winding process, the first holes 30 in the second area 302 are arranged more densely. On the one hand, it has a certain weight reduction effect on the flexible support sheet 3, so that the part of the strip support member 21 with limited rigidity corresponding to the second area 302 can form a good support for the second area 302 of the flexible support sheet 3; on the other hand, it can improve the flatness of the second area 302 during the sliding and winding process, thereby improving the flatness of the area corresponding to the second area 302 of the flexible screen 1 during the sliding and winding process, and avoiding the flexible support sheet 3 and the flexible screen 1 from arching during the sliding and winding process.

[0091] Optionally, in the second area 302 , each column of first holes 30 distributed in the orthographic projection area of ​​the strip support members 21 and each column of first holes 30 distributed in the spacing area between any two adjacent strip support members 21 are at least partially staggered in the same row direction M. That is, along any row direction M of the first hole 30 array, the first holes 30 distributed in the positive projection area of ​​the strip support 21 and the first holes 30 distributed in the spacing area between two adjacent strip support members 21 are arranged alternately in sequence, and any two adjacent first holes 30 are at least partially staggered, so that along any row direction M of the first hole 30 array, the first holes 30 distributed in the positive projection area of ​​the strip support 21 and the first holes 30 distributed in the spacing area between two adjacent strip support members 21 are in a bite-like shape with each other, so that the supporting effect of the part of the strip support 21 with limited stiffness corresponding to the second area 302 on the second area 302 of the flexible support sheet 3 can be further improved; at the same time, the flatness of the second area 302 during the sliding and rolling process and the flatness of the area of ​​the flexible screen 1 corresponding to the second area 302 during the sliding and rolling process can be further improved.

[0092] Alternatively, if Figure 8a , Figure 8b , Figure 8c and Figure 8d As shown, in the first zone 301, the second zone 302 and the third zone 303, at least one column of first holes 30 is distributed in the spacing area between any two adjacent strip-shaped support members 21; in the second zone 302, at least one second hole 31 is also distributed in the spacing area between any two adjacent rows of first holes 30; the second hole 31 extends along the sliding direction L of the flexible screen 1.

[0093] Among them, by setting a second hole 31 extending along the sliding direction L of the flexible screen 1 in the interval area between any two adjacent rows of first holes 30 in the second area 302, the second hole 31 extends through the entire arrangement area of ​​the multiple strip support members 21, which can effectively reduce the rebound force of the second area 302 of the flexible support sheet 3 during the sliding and winding process, thereby effectively reducing the rebound force of the area corresponding to the second area 302 of the flexible screen 1 during the sliding and winding process, thereby improving or avoiding the risk of peeling between the flexible support sheet 3 and the flexible screen 1 and the strip support member 21 during the sliding and winding process; at the same time, the second holes 31 and the first holes 30 in the second area 302 form a plurality of "horizontal ladder" structures, which can not only ensure the tensile strength of the second area 302 of the flexible support sheet 3, but also ensure the effective area of ​​the bonding interface between the second area 302 of the flexible support sheet 3 and the adhesive layer 4, reducing the risk of peeling caused by the bonding area of ​​the bonding interface between the adhesive layer 4 and the second area 302 of the flexible support sheet 3 being too small; thereby ultimately avoiding the strip support member 21 and the flexible screen 1 from peeling off during the sliding and winding process.

[0094] Optionally, the second holes 31 include strip-shaped slit holes, and the length of the second holes 31 is the length of a row of the first hole 30 array.

[0095] Optionally, the first hole 30 comprises a strip-shaped slit hole; the length direction of the first hole 30 is parallel to the length direction of the strip-shaped support member 21; the width of the first hole 30 ranges from 0.1 to 0.5 mm, and the length of the first hole 30 ranges from 3 to 10 mm.

[0096] Alternatively, if Figure 1a , Figure 1c , Figure 9-12 As shown, the main body includes a fixed housing 6, a sliding housing 7 and a sliding track 8, the sliding housing 7 is movably connected to the fixed housing 6 through the sliding track 8, the sliding housing 7 can be received into the fixed housing 6 through the sliding track 8 and snapped with the fixed housing 6, and the sliding housing 7 can be pulled out of the fixed housing 6 through the sliding track 8 and separated from the fixed housing 6; the sliding device also includes a hook structure 9, which is connected to both ends of the strip support 21; the hook structure 9 includes a moving member 91 and a card table 92, the moving member 91 is fixedly connected or movably connected to the card table 92, the moving member 91 is nested in the sliding track 8, and can slide or roll along the sliding track 8; the card table 92 is used to accommodate the edges of the flexible support sheet 3 and the flexible screen 1 and form support for them; when the sliding device is in the rolled state, the sliding support part, the flexible support sheet 3 and the fixed support plate are accommodated in the space formed by the snapping of the fixed housing 6 and the sliding housing 7; when the sliding device is in the unfolded state, the sliding support part and the flexible support sheet 3 are flattened as the hook structure 9 moves along the pulled-out sliding track 8.

[0097] Among them, the sliding track 8 is U-shaped. The hook structure 9 is fixedly connected to the two ends of the strip support member 21 respectively, and the hook structure 9 and the strip support member 21 constitute an overall support structure to provide support for the flexible support sheet 3 and the flexible screen during the sliding and winding process. The moving part 91 of the hook structure 9 slides along the U-shaped sliding track 8, thereby driving the sliding and winding of the sliding support part, the flexible support sheet 3 and the flexible screen 1 along the U-shaped sliding track 8. The moving part 91 is nested with the sliding track 8, and the sliding track 8 limits the rebound of the moving part 91 in the direction of leaving the sliding track 8, thereby limiting the arching of the flexible support sheet 3 and the flexible screen 1 in the direction perpendicular to the sliding support part, thereby further improving or avoiding the risk of mutual peeling of the flexible support sheet 3 and the flexible screen 1 from the sliding support part during the sliding and winding process. The edges of the flexible support sheet 3 and the flexible screen 1 are accommodated in the card base 92, the display surface of the flexible screen 1 is flush with or higher than the top surface of the card base 92 on the side away from the strip support member 21, and the edge of the card base 92 and the flexible support sheet 3 are bonded together by adhesive; the card base 92 can protect the edges of the flexible support sheet 3 and the flexible screen 1, and the card base 92 can prevent the edges of the flexible support sheet 3 and the flexible screen 1 from peeling off from the strip support member 21.

[0098] Alternatively, if Figure 2 and Fig.12 As shown, the sliding device also includes a flexible spacer layer 10, which is located on the side of the flexible support sheet 3 away from the sliding support part 2; the flexible spacer layer 10 is connected to the flexible support sheet 3; and the side of the flexible spacer layer 10 away from the flexible support sheet 3 is used to set the flexible screen 1.

[0099] Optionally, the flexible spacer layer 10 is made of any one of foam, polyethylene terephthalate plastic (PET material), and polyimide. The flexible spacer layer 10 is bonded to the flexible support sheet 3 by adhesive, and the flexible spacer layer 10 is bonded to the flexible screen 1 by adhesive. The flexible spacer layer 10 can protect the flexible screen 1 from being affected by the stress concentration conducted by the bottom sliding support part 2 during the sliding and rolling process.

[0100] The sliding and rolling device provided in the embodiment of the present invention can reduce the rebound force of the flexible support sheet during the sliding and rolling process by providing a first hole array on the flexible support sheet at least in the area corresponding to the sliding and rolling support part. This can avoid excessive peeling force at the connection interface between the flexible support sheet and the strip support member (i.e., the bonding interface between the adhesive layer and the flexible support sheet) during the sliding and rolling process. On the other hand, it can also reduce the rebound force of the flexible screen during the sliding and rolling process, and reduce the risk of peeling between the connection interface between the flexible support sheet and the strip support member (i.e., the bonding interface between the adhesive layer and the sliding and rolling support part). By making the orthographic projection of the first hole array on the sliding and rolling support member at least located in the interval area between the strip support members, it can ensure that the bonding area between the adhesive layer and the flexible support sheet is maximized, and reduce the risk of peeling due to the small bonding area of ​​the bonding interface between the adhesive layer and the flexible support sheet. This can ultimately avoid peeling between the strip support member and the flexible screen during the sliding and rolling process.

[0101] An embodiment of the present invention also provides a display device, including the sliding device in the above embodiment, and also including a flexible screen; the flexible screen is arranged on the side of the flexible support sheet in the sliding device away from the sliding support part, and the sliding device can assist the flexible screen to slide, retract and unfold.

[0102] By adopting the sliding and rolling device in the above-mentioned embodiment, the display device can avoid the peeling of the sliding and rolling support part and the flexible screen during the sliding and rolling process while realizing the sliding and rolling and unfolding of the flexible screen, thereby ensuring that the flexible screen will not be stuck during the sliding and rolling process, and further ensuring that the flexible screen will not have poor display during the sliding and rolling process.

[0103] The display device provided by the present invention can be any product or component with a display function, such as an OLED panel, an OLED TV, an OLED billboard, a display, a mobile phone, a navigator, etc.

[0104] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A sliding roll device, used to assist a flexible screen in sliding roll-up and unfolding, comprising a main body and a sliding roll-up support portion, wherein the sliding roll-up support portion is arranged around the main body and is used to support at least a sliding roll-up area of ​​the flexible screen; The sliding support portion includes a plurality of strip-shaped support members, and the plurality of strip-shaped support members are arranged in parallel and at intervals; The arrangement direction of the plurality of strip-shaped support members forms an angle greater than 0° and less than 180° with the length direction of the strip-shaped support members; the arrangement direction of the plurality of strip-shaped support members is the same as the sliding direction of the flexible screen; The sliding device further comprises a flexible support sheet, which is located on a side of the sliding support portion away from the main body portion and connected to the sliding support portion; the side of the flexible support sheet away from the sliding support portion is used to set the flexible screen; It is characterized in that a first hole array is provided on the flexible support sheet at least in an area corresponding to the sliding support portion, and an orthographic projection of the first hole array on the sliding support portion is at least located in a spacing area between the strip-shaped support members.

2. The sliding reel device according to claim 1, characterized in that: A row of the first holes is distributed in the spacing area between any two adjacent strip-shaped support members.

3. The sliding reel device according to claim 2, characterized in that: The first holes in each column are located on the midline of the spacing area between two adjacent strip-shaped support members; The center line of the spaced area between the strip-shaped support members is parallel to the length direction of the strip-shaped support members.

4. The sliding reel device according to claim 1, characterized in that: Two rows of the first holes are distributed in the spacing area between any two adjacent strip-shaped support members.

5. The sliding reel device according to claim 4, characterized in that: In the two rows of the first holes located in the spacing area between the two strip-shaped support members, the first side edge of the first holes in the first row is flush with the first side edge of one of the strip-shaped support members adjacent thereto; the second side edge of the first holes in the second row is flush with the second side edge of another of the strip-shaped support members adjacent thereto; The first side edge of the first hole in the first column and the first side edge of one of the strip-shaped support members are adjacent edges of the first hole in the first column and the strip-shaped support member; The second side edge of the first holes in the second column and the second side edge of another of the strip-shaped support members are adjacent edges of the first holes in the second column and the strip-shaped support members.

6. The sliding reel device according to claim 1, characterized in that: The flexible support sheet comprises a first area, a second area and a third area, and the first area, the second area and the third area are arranged in sequence along the length direction of the strip support member; The distribution density of the first holes in the first zone and the third zone is smaller than the distribution density of the first holes in the second zone.

7. The sliding reel device according to claim 6, characterized in that: In the first area, the second area and the third area, at least one row of the first holes is distributed in the interval area between any two adjacent strip-shaped support members; In the second area, each of the strip-shaped support members is further provided with at least one row of the first holes within the orthographic projection area on the main body.

8. The sliding reel device according to claim 7, characterized in that: In the second area, each column of the first holes distributed in the orthographic projection area of ​​the strip-shaped support members and each column of the first holes distributed in the spacing area between any two adjacent strip-shaped support members are at least partially staggered in the same row direction.

9. The sliding reel device according to claim 6, characterized in that: In the first area, the second area and the third area, at least one row of the first holes is distributed in the interval area between any two adjacent strip-shaped support members; In the second area, at least one second hole is distributed in the interval area between any two adjacent rows of the first holes; The second hole extends along the sliding direction of the flexible screen.

10. The sliding reel device according to claim 9, characterized in that: The second hole comprises a strip-shaped slit hole, The length of the second hole is the length of a row of the first hole array.

11. The sliding reel device according to any one of claims 1 to 9, characterized in that: The first hole comprises a strip-shaped slit hole; the length direction of the first hole is parallel to the length direction of the strip-shaped support member; The width of the first hole ranges from 0.1 to 0.5 mm, and the length of the first hole ranges from 3 to 10 mm.

12. The sliding reel device according to claim 1, characterized in that: The flexible screen also includes a flattening keeping area; the flattening keeping area is spliced ​​with the sliding and rolling area; The sliding and rolling support portion and the sliding and rolling area overlap with the orthographic projection on the main body; The sliding and rolling device further comprises a fixed support plate, which is located on the main body and is used to support the flattening holding area; The orthographic projections of the fixed support plate and the sliding support portion on the main body portion do not overlap; The flexible support sheet also extends to a side of the fixed support plate away from the main body, and the flexible support sheet is connected to the fixed support plate; The area of ​​the flexible supporting sheet corresponding to the fixed supporting plate is planar.

13. The sliding reel device according to claim 12, characterized in that: The main body comprises a fixed housing, a sliding housing and a sliding track, wherein the sliding housing is movably connected to the fixed housing through the sliding track, the sliding housing can be received into the fixed housing through the sliding track and be engaged with the fixed housing, and the sliding housing can be pulled out of the fixed housing through the sliding track and separated from the fixed housing; The sliding and rolling device also includes a hook structure connected to both ends of the strip-shaped support member; The hook structure includes a moving part and a card platform, the moving part is fixedly connected or movably connected to the card platform, the moving part is nested in the sliding track, and can slide or roll along the sliding track; the card platform is used to accommodate the edges of the flexible support sheet and the flexible screen and form support for them; When the sliding roll device is in a reeled state, the sliding roll support portion, the flexible support sheet and the fixed support plate are accommodated in a space formed by the fastening of the fixed housing and the sliding housing; When the sliding roll device is in an unfolded state, the sliding roll support portion and the flexible support sheet are flattened as the hook structure moves along the drawn-out sliding track.

14. The sliding reel device according to claim 12, characterized in that: It also includes a flexible spacer layer, which is located on a side of the flexible support sheet away from the sliding support portion; The flexible spacer layer is connected to the flexible support sheet; a side of the flexible spacer layer facing away from the flexible support sheet is used to set the flexible screen.

15. The sliding reel device according to claim 14, characterized in that: The flexible support sheet is made of any one of carbon fiber, stainless steel and titanium alloy; The flexible spacer layer is made of any one of foam, polyethylene terephthalate plastics and polyimide.

16. A display device, characterized in that: A sliding and rolling device comprising any one of claims 1 to 15, further comprising a flexible screen; The flexible screen is arranged on a side of the flexible support sheet in the sliding and rolling device away from the sliding and rolling support portion, and the sliding and rolling device can assist the flexible screen in sliding, rolling and unfolding.

Images