Flexible display device and rolling method thereof

Abstract

The present invention relates to the field of display technology, and proposes a flexible display device and a rolling method thereof. The flexible display device includes a housing, a flexible display panel, a fixed support, a rolling shaft and a support; the flexible display panel has a first end and a second end arranged opposite to each other; the fixed support is fixedly connected to the first end of the flexible display panel, used to support the first end of the flexible display panel, and movably connected to the housing; the flexible display panel is rolled up on the rolling shaft, and is rotatably arranged in the housing; the support is rolled up on the rolling shaft and is located between the rolling shaft and the flexible display panel, one end of the support is fixedly connected to the rolling shaft, and the other end of the support is fixedly connected to the fixed support, and the support is used to support the flexible display panel when the flexible display panel is unfolded. The flexible display panel is not easily damaged when used by the user, and will not cause poor display or poor touch in the area during use, and the warping amount of the flexible display panel can be reduced.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a flexible display device and a sliding and rolling method of the flexible display device. Background Art

[0002] With the vigorous development of science and technology, flexible display panels have gradually achieved mass production and productization. At present, the mainstream application form of flexible display panels on the market is foldable, and the folding form can be further divided into inward folding and outward folding according to whether the display surface is facing inward or outward when folded. The folding form brings consumers a new terminal experience, but the folding form also has another limitation, that is, the display area of ​​the flexible display panel can only be switched between two display areas.

[0003] Rolling is another innovative application area of ​​flexible display panels. This form enables consumers to switch the display area of ​​the flexible panel at will according to their needs. This is not only convenient for users to carry around, but also provides users with a better user experience than folding display panels. It is an important direction for the development of flexible display panels. However, in the current rolling mechanism, the flexible display panel does not have good support when the rolling area is in the flat state, causing the flexible display panel to be easily damaged when the user uses it, resulting in poor display. In addition, the touch of this area is poor during use, resulting in poor user experience.

[0004] The above information disclosed in the Background section is only for enhancement of understanding of the background of the present disclosure and therefore it may include information that does not constitute the prior art that is already known to one of ordinary skill in the art. Summary of the invention

[0005] The object of the present invention is to overcome the above-mentioned disadvantage of the prior art that the rolling area has no support in the flattened state, and to provide a flexible display device in which the rolling area has support in the flattened state.

[0006] Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

[0007] According to one aspect of the present disclosure, there is provided a flexible display device, comprising:

[0008] case;

[0009] A flexible display panel having a first end and a second end arranged opposite to each other;

[0010] a fixed support member, fixedly connected to the first end of the flexible display panel and used to support the first end of the flexible display panel, wherein the fixed support member is movably connected to the housing;

[0011] a scroll shaft, on which the flexible display panel is rolled up, and the scroll shaft is rotatably disposed in the housing;

[0012] A support member is wound on the sliding scroll and is located between the sliding scroll and the flexible display panel. One end of the support member is fixedly connected to the sliding scroll, and the other end of the support member is fixedly connected to the fixed support member. The support member is used to support the flexible display panel when the flexible display panel is unfolded.

[0013] In an exemplary embodiment of the present disclosure, the support member comprises:

[0014] A plurality of rigid support plates extending along the axial direction of the sliding reel, with a spacing space being provided between two adjacent rigid support plates;

[0015] A plurality of flexible support plates extend along the axial direction of the sliding scroll, and one flexible support plate is connected between two adjacent rigid support plates.

[0016] In an exemplary embodiment of the present disclosure, the rigid support plate is made of magnetically conductive metal.

[0017] In an exemplary embodiment of the present disclosure, a coil is wound around the rigid support plate; the flexible display panel includes a metal support layer, the metal support layer is located on the side that is in contact with the support member, the material of the metal support layer is magnetic conductive metal, and the metal support layer can be attracted to the rigid support plate after power is applied.

[0018] In an exemplary embodiment of the present disclosure, the sliding reel comprises:

[0019] Slide reel column;

[0020] Two baffles are fixed at opposite ends of the sliding reel column respectively, and the diameter of the baffles is greater than the diameter of the sliding reel column.

[0021] In an exemplary embodiment of the present disclosure, a plurality of annular grooves arranged side by side along the axial direction of the sliding reel are provided on the sliding reel column, and the annular grooves are arranged coaxially with the sliding reel column.

[0022] In an exemplary embodiment of the present disclosure, the support member includes a plurality of support bars, and the plurality of support bars are arranged side by side along the axial direction of the sliding reel, and each of the support bars cooperates with the annular groove.

[0023] In an exemplary embodiment of the present disclosure, the width of the annular groove close to the baffle is greater than the width of the annular groove away from the baffle, and the width of the support bar close to the baffle is greater than the width of the support bar away from the baffle.

[0024] In an exemplary embodiment of the present disclosure, a surface of the support member that cooperates with the flexible display panel is provided with a plurality of first convex strips, and the first convex strips extend along the axial direction of the scroll shaft.

[0025] In an exemplary embodiment of the present disclosure, a surface of the flexible display panel that cooperates with the support member is provided with a plurality of grooves that cooperate with the first convex strips, and the grooves extend along the axial direction of the scroll shaft.

[0026] In an exemplary embodiment of the present disclosure, the flexible display device further includes:

[0027] An elastic member is connected between the housing and the second end of the flexible display panel.

[0028] In an exemplary embodiment of the present disclosure, the support member is configured to be in a plate shape, a plurality of through holes are provided on the support member, and the material of the support member is metal or colloid.

[0029] According to one aspect of the present disclosure, a rolling method of a flexible display device is provided, which is used for any one of the above-mentioned flexible display devices, comprising:

[0030] The sliding reel is moved toward a side away from the fixed support member, and the support member and the flexible display panel wound on the sliding reel are unfolded, and the support member supports the flexible display panel.

[0031] In an exemplary embodiment of the present disclosure, when the flexible display panel is unfolded to a preset position, the coil on the rigid support plate is energized to attract the rigid support plate and the flexible display panel.

[0032] It can be seen from the above technical solution that the present invention has at least one of the following advantages and positive effects:

[0033] In the flexible display device of the present invention, one end of the flexible display panel is supported by a fixed support member, and the support member and the rest of the flexible display panel are rolled up on a sliding scroll. When the flexible display panel is unfolded, the support member is also unfolded to support the flexible display panel. Thus, the flexible display panel is supported when it is flattened, and it is not easy to be damaged when the user uses it, which will not cause poor display, poor touch in the area during use, and poor user experience. Moreover, the flexible display panel does not need to be designed to be too thick to support itself. After the thickness of the flexible display panel is thinned, the warping of the flexible display panel can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

[0035] Figure 1A schematic diagram of the structure of the warping deformation of the flexible display panel when folded outward in the related art shown;

[0036] Figure 2 is a schematic structural diagram of an exemplary embodiment of a flexible display device of the present invention;

[0037] Figure 3 yes Figure 2 A schematic diagram of the structure of the flexible display panel;

[0038] Figure 4 yes Figure 2 A schematic structural diagram of the flexible display device when unfolded;

[0039] Figure 5 yes Figure 2 A schematic diagram of the structure of the support member;

[0040] Figure 6 is a schematic structural diagram of another exemplary embodiment of a support member;

[0041] Figure 7 is with Figure 6 A schematic diagram of a portion of the structure of a flexible display panel matched with a support member;

[0042] Figure 8 is a structural schematic diagram of another exemplary embodiment of a support member;

[0043] Fig. 9 yes Figure 2 A schematic diagram of the structure of the sliding scroll;

[0044] Fig.10 is a schematic structural diagram of another exemplary embodiment of a sliding reel;

[0045] Fig.11 It is a schematic structural diagram of another exemplary embodiment of a support member connected to a fixed support member.

[0046] The main components in the figure are described as follows:

[0047] 1. Shell; 11. Opening;

[0048] 2. Flexible display panel; 21. Metal support layer; 22. First optical adhesive layer; 23. Back film; 24. First PSA silicone layer; 25. Display layer; 26. Second PSA silicone layer; 27. Polarizer; 28. Second optical adhesive layer; 29. ​​Cover plate;

[0049] 3. Fix the support parts;

[0050] 4. sliding reel; 41. sliding reel column; 42. baffle; 43. annular groove;

[0051] 5. Support member; 51. Rigid support plate; 52. Flexible support plate; 53. Support strip; 54. First convex strip; 55. Strip-shaped through hole;

[0052] 6. Elastic member; 7. Second convex strip; 8. Concave groove. DETAILED DESCRIPTION

[0053] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0054] Reference Figure 1 The schematic diagram of the warping deformation structure of the flexible display panel when folded outward in the related art shown in the figure shows that in the related art, the sliding area of ​​the flexible display panel 2 can be designed to be thicker to support itself, but the thicker the flexible display panel 2, the greater the warping amount H after being wound on the sliding roller 4, and the greater the rebound force; in this way, when the flexible display panel 2 is curled, the neutral layer of the functional layers (display functional layer and touch functional layer) of the flexible display panel 2 will move downward, the strain of the functional layer will increase, and the risk of bending failure will increase.

[0055] This exemplary embodiment first provides a flexible display device, referring to Figure 2 The structural schematic diagram of an example embodiment of the flexible display device of the present invention is shown, and the flexible display device may include a shell 1, a flexible display panel 2, a fixed support member 3, a sliding scroll 4, a support member 5 and an elastic member 6; the flexible display panel 2 has a first end and a second end arranged opposite to each other; the fixed support member 3 is fixedly connected to the first end of the flexible display panel 2, and is used to support the first end of the flexible display panel 2; the flexible display panel 2 is rolled up on the sliding scroll 4; the support member 5 is rolled up on the sliding scroll 4 and is located between the sliding scroll 4 and the flexible display panel 2, one end of the support member 5 is fixedly connected to the sliding scroll 4, and the other end of the support member 5 is fixedly connected to the fixed support member 3, and the support member 5 is used to support the flexible display panel 2 when the flexible display panel 2 is unfolded.

[0056] In this example implementation, refer to Figure 3 shown Figure 2The flexible display panel 2 may include a metal support layer 21, a first optical adhesive layer 22, a back film 23, a first PSA silicone layer 24, a display layer 25, a second PSA silicone layer 26, a polarizer 27, a second optical adhesive layer 28, and a cover plate 29. The first optical adhesive layer 22 is disposed on the metal support layer 21, the back film 23 is disposed on a side of the first optical adhesive layer 22 away from the metal support layer 21, the first PSA silicone layer 24 is disposed on a side of the back film 23 away from the metal support layer 21, the display layer 25 is disposed on a side of the first PSA silicone layer 24 away from the metal support layer 21, the second PSA silicone layer 26 is disposed on a side of the display layer 25 away from the metal support layer 21, the polarizer 27 is disposed on a side of the second PSA silicone layer 26 away from the metal support layer 21, the second optical adhesive layer 28 is disposed on a side of the polarizer 27 away from the metal support layer 21, and the cover plate 29 is disposed on a side of the second optical adhesive layer 28 away from the metal support layer 21. The material of the cover plate 29 is transparent polyimide resin. The thickness of the metal support layer 21 can be greater than or equal to 30 μm and less than or equal to 40 μm.

[0057] Please continue to refer to Figure 2 As shown, in this exemplary embodiment, the housing 1 may be configured as a rectangular parallelepiped, and an opening 11 is provided on the housing 1 , through which the flexible display panel 2 may perform display.

[0058] The fixed support member 3 can be set in a plate shape, and the side of the first end of the flexible display panel 2 opposite to the display surface can be bonded to the fixed support member 3, and the fixed support member 3 can support the first end of the flexible display panel 2. The width of the fixed support member 3 is greater than the width of the flexible display panel 2, so that the two ends of the fixed support member 3 in the width direction protrude from the flexible display panel 2. A guide groove (not shown in the figure) can be set on the two opposite inner side walls of the housing 1, and the extension direction of the guide groove is consistent with the moving direction of the fixed support member 3. The two ends of the fixed support member 3 protruding from the flexible display panel 2 are located in the guide groove, so that the fixed support member 3 can slide in the guide groove, thereby moving relative to the housing 1. Linear bearings can also be set at the two ends of the fixed support member 3 to cooperate with the guide groove. Of course, it can be understood that guide rails can also be set on the two opposite inner side walls of the housing 1, and a slider can be set on the fixed support member 3, and the slider can slide in the guide rail, thereby driving the fixed support member 3 to move.

[0059] In this exemplary embodiment, the width refers to the dimension of the sliding reel 4 in the axial direction, and the length refers to the dimension in the direction perpendicular to the axial direction of the sliding reel 4 .

[0060] In this example embodiment, both ends of the sliding reel 4 can be fixed to the opposite inner walls of the housing 1 through bearings, and the opposite inner walls of the sliding reel 4 and the opposite inner walls of the fixed support 3 are the same.

[0061] The elastic member 6 is connected between the housing 1 and the second end of the flexible display panel 2. The elastic member 6 may be a spring with a constant tension, i.e., a constant tension spring. The elastic member 6 may provide a constant tension to the flexible display panel 2, keep the flexible display panel 2 in a tensioned state, and make the flexible display panel 2 and the support member 5, and the support member 5 and the scroll 4 fit tightly. In other exemplary embodiments of the present invention, the elastic member 6 may also be a rubber band.

[0062] One end of the support member 5 can be fixedly connected to the sliding reel 4 by welding, hinge, screws, etc., and the other end of the support member 5 can also be fixedly connected to the fixed support member 3 by welding, hinge, screws, etc. The support member 5 is rolled up on the sliding reel 4 and located between the sliding reel 4 and the flexible display panel 2, that is, the support member 5 and the flexible display panel 2 are rolled up on the sliding reel 4 in sequence.

[0063] Reference Figure 4 shown Figure 2 Schematic diagram of the structure of the flexible display device when unfolded. When the flexible display panel 2 is unfolded, the support member 5 is also unfolded, and the support member 5 can support the flexible display panel 2. As a result, the flexible display panel 2 is supported when it is flattened, and the flexible display panel 2 is not easily damaged when the user uses it, which will not cause poor display, poor touch in the area during use, and poor user experience. Moreover, the flexible display panel 2 does not need to be designed to be too thick to support itself. After the thickness of the flexible display panel 2 is thinned, the warping amount H of the flexible display panel 2 can be reduced.

[0064] In this example implementation, refer to Figure 5As shown, the support member 5 may include a plurality of rigid support plates 51 and a plurality of flexible support plates 52. The rigid support plate 51 is configured in a strip shape, and the flexible support plate 52 is also configured in a strip shape. The length direction of the rigid support plate 51 extends along the axial direction of the scroll 4, that is, the length direction of the rigid support plate 51 is consistent with the axial direction of the scroll 4. The length direction of the flexible support plate 52 extends along the axial direction of the scroll 4, that is, the length direction of the flexible support plate 52 is consistent with the axial direction of the scroll 4. An interval space is provided between two adjacent rigid support plates 51, and the flexible support plate 52 is connected between the two adjacent rigid support plates 51. The material of the flexible support plate 52 may be silicone, or rubber, plastic, etc. The support member 5 may be a plurality of rigid support plates 51 and silicone injection molded into one body. The rigid support plate 51 can provide support for the flexible display panel 2, and the flexible support plate 52 is connected to the rigid support plate 51, and facilitates the bending of the support member 5. The thickness of the support member 5 may be greater than or equal to 100 microns and less than or equal to 200 microns. The length of the support member 5 is approximately 150 mm and the width is approximately 12 mm. Of course, the length and width of the support member 5 can be determined according to the length and width of the flexible display panel 2 to be supported. Generally, the width of the support member 5 needs to be slightly larger than the width of the flexible display panel 2.

[0065] The material of the rigid support plate 51 can be a magnetic metal, for example, it can be iron, cobalt, nickel and any substance containing iron, cobalt and nickel, preferably soft iron or silicon steel. A conductive winding (coil) matching its power is wound outside the rigid support plate 51, so that each rigid support plate 51 forms an electromagnet, and multiple rigid support plates 51 form multiple electromagnets. The four rigid support plates 51 can be wound in sequence by a wire, and the winding direction can be set as needed; that is, the four rigid support plates 51 form a common magnetic body, and gain or lose magnetism at the same time. The wire wound around the four rigid support plates 51 leads to two terminals, and the power supply is connected to the two terminals, so that the support member 5 can be magnetic, and the magnetic support member 5 can be attracted to the metal support layer 21 on the flexible display panel 2. Of course, in this case, the material of the metal support layer 21 is also a magnetic metal, for example, it can be iron, cobalt, nickel and any substance containing iron, cobalt and nickel, preferably soft iron or silicon steel, and the metal support layer 21 can be attracted to the rigid support plate 51 after power is turned on. The support member 5 can be controlled to be magnetic when the flexible display device is in a flat state, and the support member 5 can be attracted to the metal support layer 21 on the flexible display panel 2; when in a curled state, rolled up or unrolled, the support member 5 is not magnetic and cannot be attracted to the metal support layer 21 on the flexible display panel 2. The magnetic segmentation of the rigid support plate 51 can be set to meet the requirements of segmented deployment of the flexible display device, that is, the rigid support plate 51 in the flat state is magnetic, and the rigid support plate 51 in the curled state is non-magnetic. Of course, in other exemplary embodiments of the present invention, two, three, five or more rigid support plates 51 can also be set as a group to form an electromagnet, which can have or lose magnetism at the same time.

[0066] In addition, in some other exemplary embodiments of the present invention, referring to Figure 6 As shown, a plurality of first ridges 54 may be provided on a side of the support member 5 that cooperates with the flexible display panel 2. The first ridges 54 extend along the axial direction of the scroll shaft 4. The cross-sectional shape of the first ridges 54 perpendicular to the axial direction of the scroll shaft 4 may be set to an isosceles trapezoid. The long side of the isosceles trapezoid is connected to the support member 5, and the short side of the isosceles trapezoid is away from the support member 5. The plurality of first ridges 54 are arranged parallel to each other, and a spacing space is provided between two adjacent first ridges 54. Figure 7As shown, a plurality of grooves 8 cooperating with the first convex strips 54 are provided on one side of the flexible display panel 2 that cooperates with the support member 5, and the grooves 8 extend along the axial direction of the scroll shaft 4. The cross-sectional shape of the groove 8 perpendicular to the axial direction of the scroll shaft 4 can be set to an isosceles trapezoid, and the length, width and depth of the groove 8 are correspondingly greater than the length, width and height of the first convex strips 54, and the long side of the isosceles trapezoid is close to the flexible display panel 2, and the short side of the isosceles trapezoid is far away from the flexible display panel 2. It can be understood that the groove 8 is surrounded by the second convex strips 7 provided on the side of the flexible display panel 2 that cooperates with the support member 5, and the second convex strips 7 extend along the axial direction of the scroll shaft 4. After the support member 5 cooperates with the flexible display panel 2, the second convex strips 7 are inserted into the interval space between two adjacent first convex strips 54, and the first convex strips 54 are inserted into the grooves 8 formed by two adjacent second convex strips 7. It can be understood that the setting of the first convex strips 54 and the grooves 8 can be based on the above-mentioned structure of setting the rigid support plate 51 as an electromagnet, or it can not be based on the structure of setting the rigid support plate 51 as an electromagnet.

[0067] The structure of the support member 5 is not limited to the above description. In some further exemplary embodiments of the present invention, Figure 8 As shown, the support member 5 may include a rigid support plate 51, on which a plurality of strip-shaped through holes 55 are arranged, and the plurality of strip-shaped through holes 55 may be arranged in an array or in a non-array. The strip-shaped through holes 55 may be filled with silicone, rubber, etc. The shape of the strip-shaped through holes 55 may be a round hole, an ellipse, a rectangle, etc., and of course, it may also be set as a circular through hole, a square through hole, etc. It is also possible not to fill the strip-shaped through holes with silicone. It is also possible to use a whole-surface rigid support plate 51, and the thickness of the rigid support plate 51 may be greater than or equal to 30 microns and less than or equal to 50 microns. It is also possible to use a whole-surface colloidal material, such as silicone, rubber, etc., and the thickness of the colloidal material may be less than or equal to 1 mm. Of course, it is also possible to use a flat plate of colloidal material with a pattern, that is, to set through holes on the flat plate of the colloidal material, and the thickness of the flat plate of the colloidal material may be less than or equal to 2 mm.

[0068] In this example implementation, refer to Fig. 9 As shown, the scroll 4 may include a scroll column 41 and two baffles 42, and the two baffles 42 are fixed to the opposite ends of the scroll column 41, that is, a baffle 42 is fixed to one end surface of the scroll column 41. The baffle 42 may be set as a circular plate. The diameter of the baffle 42 is greater than the diameter of the scroll column 41. The flexible display panel 2 is wound around the scroll column 41 to avoid deviation from the scroll column 41. Of course, the baffle 42 may also be set in a variety of shapes such as a rectangle, a triangle, a trapezoid, etc., as long as the cylindrical surface protruding from the scroll column 41 blocks the flexible display panel 2.

[0069] In other exemplary embodiments of the present invention, reference is made to Fig.10As shown, a plurality of annular grooves 43 arranged side by side along the axial direction of the sliding reel 4 can be provided on the sliding reel column 41, and the annular grooves 43 are arranged coaxially with the sliding reel column 41, and a spacing space is provided between two adjacent annular grooves 43. That is, a plurality of annular grooves 43 coaxially with the sliding reel column 41 are arranged at intervals on the cylindrical surface of the sliding reel column 41, so that the cylindrical surface of the sliding reel column 41 forms a structure of one circle of depression and one circle of protrusion. The width of the annular groove 43 can be greater than or equal to 20 mm and less than or equal to 50 mm. Of course, the width of the annular groove 43 can be flexibly designed as needed. The width of the annular groove 43 can be the same or different, and the width of the annular groove 43 near the two ends of the sliding reel 4 can be designed to be wider, that is, the width of the annular groove 43 near the baffle 42 is greater than the width of the annular groove 43 away from the baffle 42.

[0070] In this case, refer to Fig.11 As shown, the support member 5 is arranged side by side as a plurality of support bars 53 along the axial direction of the scroll shaft 4, that is, the support member 5 may include a plurality of support bars 53 arranged side by side along the axial direction of the scroll shaft 4. The width of the support bar 53 may be greater than or equal to 20 mm and less than or equal to 50 mm. Each support bar 53 cooperates with the annular groove 43, that is, a support bar 53 may be embedded in an annular groove 43. Of course, a spacing space is provided between two adjacent support bars 53, and the spacing space cooperates with the protrusion on the scroll shaft column 41. The width of the support bar 53 may be flexibly designed as needed. The widths of the plurality of support bars 53 may be the same or different. The widths of the support bars 53 near the two ends of the scroll shaft 4 may be designed to be wider, that is, the width of the support bar 53 near the baffle 42 is greater than the width of the support bar 53 away from the baffle 42, so as to support the edges on both sides of the width direction of the flexible display panel 2, so that the flexible display panel 2 has better flatness. Of course, a plurality of bosses cooperating with the annular groove 43 may also be provided on the side of the support member 5 cooperating with the sliding reel 4 , and the bosses may be stuck in the annular groove 43 .

[0071] It should be noted that the above Figure 5 An exemplary embodiment of the support member 5 shown in FIG. 5 , an exemplary embodiment of the support member 5 with a coil wound on a rigid support plate 51 , Figure 8 The exemplary embodiments of the support member 5 shown in the drawings can all arrange the support member 5 as a plurality of support strips 53 arranged side by side along the axial direction of the reel 4 .

[0072] Furthermore, this exemplary embodiment also provides a rolling method of a flexible display device, which is used for any of the flexible display devices described above. The rolling method may include the following steps:

[0073] The sliding reel 4 is moved to a side away from the fixed support member 3 , and the support member 5 and the flexible display panel 2 wound on the sliding reel 4 are unfolded, and the support member 5 supports the flexible display panel 2 .

[0074] In this exemplary embodiment, when the flexible display panel 2 is unfolded to a preset position, the coil on the rigid support plate 51 is energized so that the rigid support plate 51 and the flexible display panel 2 are attracted.

[0075] Specifically, when in use, the user pulls the housing 1 and the fixed support member 3 relatively, and the fixed support member 3 slides outward in the guide groove in the housing 1, and the fixed support member 3 drives the flexible display panel 2 and the support member 5 to move outward. At the same time, the flexible display panel 2 and the support member 5 rolled on the sliding scroll 4 are slowly flattened. In this process, the support member 5 drives the sliding scroll 4 to rotate, and the elastic member 6 is stretched with a constant pulling force. When the flexible display panel 2 is unfolded to the preset position, the coil on the rigid support plate 51 is energized to make the rigid support plate 51 and the flexible display panel 2 engage. When rewinding, the fixed support member 3 is released, and under the pulling force of the elastic member 6, the flexible display panel 2 is driven to retract into the housing and be rolled on the sliding scroll 4. At the same time, the flexible display panel 2 drives the support member 5 to retract into the housing and be rolled on the sliding scroll 4. In this process, the sliding scroll 4 also rotates; the support member 5 and the flexible display panel 2 drive the fixed support member 3 to slide to the original position.

[0076] The features, structures or characteristics described above may be combined in one or more embodiments in any suitable manner, and if possible, the features discussed in each embodiment are interchangeable. In the above description, many specific details are provided to provide a full understanding of the embodiments of the present invention. However, those skilled in the art will appreciate that the technical solution of the present invention may be practiced without one or more of the specific details, or other methods, components, materials, etc. may be adopted. In other cases, known structures, materials or operations are not shown or described in detail to avoid blurring various aspects of the present invention.

[0077] The terms "about" and "approximately" used in this specification generally mean within 20%, preferably within 10%, and more preferably within 5% of a given value or range. The numbers given here are approximate numbers, which means that in the absence of specific instructions, the meanings of "about", "approximately", "roughly" and "approximately" can still be implied.

[0078] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of the illustration to another component, these terms are used in this specification only for convenience, such as according to the orientation of the examples described in the drawings. It is understood that if the device of the illustration is turned upside down, the component described as "upper" will become the component "lower". When a structure is "on" other structures, it may mean that the structure is formed integrally on the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.

[0079] In this specification, the terms "a", "an", "the" and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising", "including" and "having" are used to express an open-ended inclusion and mean that there may be additional elements / components / etc. in addition to the listed elements / components / etc.; the terms "first", "second" and "third" etc. are used only as labels and are not intended to limit the quantity of their objects.

[0080] It should be understood that the present invention is not limited in its application to the detailed structure and arrangement of the components proposed in this specification. The present invention can have other embodiments and can be implemented and executed in a variety of ways. The aforementioned variations and modifications fall within the scope of the present invention. It should be understood that the present invention disclosed and defined in this specification extends to all alternative combinations of two or more individual features mentioned or evident in the text and / or the drawings. All these different combinations constitute multiple alternative aspects of the present invention. The embodiments described in this specification illustrate the best mode known for implementing the present invention and will enable those skilled in the art to utilize the present invention.

Claims

1. A flexible display device, characterized in that: include: a housing having an opening; A flexible display panel having a first end and a second end arranged opposite to each other, wherein the flexible display panel displays through the opening; a fixed support member, fixedly connected to the first end of the flexible display panel and used to support the first end of the flexible display panel, wherein the fixed support member is movably connected to the housing; A scroll shaft, on which the flexible display panel is rolled up, the scroll shaft is rotatably arranged in the housing, the scroll shaft comprises a scroll shaft column and two baffles, the two baffles are correspondingly fixed at opposite ends of the scroll shaft column, the scroll shaft column is provided with a plurality of annular grooves arranged side by side along the axial direction of the scroll shaft, and the annular grooves are arranged coaxially with the scroll shaft column; A support member is wound on the sliding scroll and is located between the sliding scroll and the flexible display panel, one end of the support member is fixedly connected to the sliding scroll, and the other end of the support member is fixedly connected to the fixed support member, the support member is used to support the flexible display panel when the flexible display panel is unfolded, the support member includes a plurality of support bars, the plurality of support bars are arranged side by side along the axial direction of the sliding scroll, and each of the support bars cooperates with the annular groove; the width of the annular groove close to the baffle is greater than the width of the annular groove away from the baffle, and the width of the support bar close to the baffle is greater than the width of the support bar away from the baffle.

2. The flexible display device according to claim 1, characterized in that: The support member comprises: A plurality of rigid support plates extending along the axial direction of the sliding reel, with a spacing space being provided between two adjacent rigid support plates; A plurality of flexible support plates extend along the axial direction of the sliding scroll, and one flexible support plate is connected between two adjacent rigid support plates.

3. The flexible display device according to claim 2, characterized in that: The material of the rigid support plate is magnetic conductive metal.

4. The flexible display device according to claim 3, characterized in that: A coil is wound around the rigid support plate; the flexible display panel includes a metal support layer, the metal support layer is located on the side in contact with the support member, the material of the metal support layer is magnetic conductive metal, and the metal support layer can be attracted to the rigid support plate after power is supplied.

5. The flexible display device according to claim 4, characterized in that: The diameter of the baffle is greater than the diameter of the sliding reel column.

6. The flexible display device according to claim 4, characterized in that: A surface of the support member that cooperates with the flexible display panel is provided with a plurality of first convex strips, and the first convex strips extend along the axial direction of the scroll shaft.

7. The flexible display device according to claim 6, characterized in that: A surface of the flexible display panel that cooperates with the support member is provided with a plurality of grooves that cooperate with the first convex strips, and the grooves extend along the axial direction of the scroll shaft.

8. The flexible display device according to claim 4, characterized in that: The flexible display device further includes: An elastic member is connected between the housing and the second end of the flexible display panel.

9. The flexible display device according to claim 1, characterized in that: The support member is configured in a plate shape, a plurality of through holes are provided on the support member, and the material of the support member is metal or colloid.

10. A rolling method for a flexible display device, used for the flexible display device according to any one of claims 1 to 9, characterized in that: include: The sliding reel is moved toward a side away from the fixed support member, and the support member and the flexible display panel wound on the sliding reel are unfolded, and the support member supports the flexible display panel.

11. The rolling method of the flexible display device according to claim 10, used for the flexible display device according to any one of claims 4 to 8, characterized in that: When the flexible display panel is unfolded to a preset position, the coil on the rigid support plate is energized to make the rigid support plate and the flexible display panel engage with each other.

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