Display apparatus and manufacturing method therefor

Abstract

The present application belongs to the technical field of display, and discloses a display apparatus. The display apparatus comprises a flexible display panel and a supporting piece. The supporting piece is used for supporting a display surface of the flexible display panel to be switched between a flat surface and a curved surface. The supporting piece comprises a fixing part, a supporting unit, and a telescopic connecting rod, the fixing part being fixedly connected to one end of the flexible display panel, the fixing part being connected to one end of the supporting unit, and the supporting unit being slidably connected to the flexible display panel. The telescopic connecting rod is connected to the supporting unit, and the direction of extension of the telescopic connecting rod intersects with a first plane, the first plane being the plane in which the display surface of the flexible display panel is located when a flat surface. The present application can achieve the effect of prolonging the service life of a flexible display panel.

Description

Display device and manufacturing method thereof

[0001] The present application claims priority from the Chinese patent application No. 202410417424.1 filed on April 08, 2024 and entitled "Display device and manufacturing method thereof", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of display, in particular to a display device and a manufacturing method thereof. BACKGROUND

[0003] The display device capable of switching between curved display and flat display has a wide range of application scenarios in life, such as vehicle-mounted display device, billboards and other electronic devices. The support is an important component of the display device, which is used to support the flexible display panel.

[0004] In the related art, the flexible display panel is pasted on the support, and the flexible display panel changes with the change of the shape of the support to realize the functions of curved display and flat display.

[0005] However, since the flexible display panel is pasted on the support, when the display device switches between flat and curved, the stress generated by the extrusion or stretching of the partial area of the flexible display panel is difficult to release, which affects the service life of the flexible display panel. SUMMARY

[0006] Embodiments of the present application provide a display device and a manufacturing method thereof, which can realize the functions of flat display and curved display, and have less impact on the service life of the flexible display panel. The technical solution is as follows:

[0007] On the one hand, a display panel is provided, the display device includes a flexible display panel and a support, the support is used to support the flexible display panel to switch between a first state and a second state, a display surface of the flexible display panel is a plane in the first state, and the display surface is a curved surface in the second state; the support includes a fixed part, a support unit and an extension link, the fixed part is fixedly connected with one end of the flexible display panel, the fixed part is connected with one end of the support unit, and the support unit is slidingly connected with the flexible display panel; the extension link is connected with the support unit, an extension direction of the extension link intersects a first plane, and the first plane is a plane in which the display surface of the flexible display panel is located in the first state.

[0008] Optionally, the support unit has a sliding groove, the flexible display panel includes a back plate, a cover plate and a display structure between the back plate and the cover plate, and an edge of the back plate is located in the sliding groove.

[0009] Optionally, the support unit comprises a plurality of track blocks connected in sequence, and the telescopic connecting rod is connected with one of the plurality of track blocks.

[0010] Optionally, the support unit comprises a plurality of track blocks connected in sequence, and the telescopic connecting rod is connected with one of the plurality of track blocks.

[0011] Optionally, the length direction of the fixed part intersects with the length direction of the flexible display panel, the support unit comprises two support units, the length direction of the support unit is the same as the length direction of the flexible display panel, and each of the support units is connected with two ends of the fixed part.

[0012] Optionally, the plurality of track blocks comprises a first track block and at least one second track block connected in sequence, the first track block is located on the side of the at least one second track block away from the fixed part, the first track block has a first connecting part, and the second track block has a second connecting part; one of the first connecting part and the second connecting part is a first strip-shaped groove, and the other is a first strip-shaped column, the first strip-shaped column is located in the first strip-shaped groove, the length direction of the first strip-shaped groove, the length direction of the first strip-shaped column and the length direction of the support unit are the same; the track block with the first strip-shaped groove further comprises a first driving structure connected with the first strip-shaped column, and the first driving structure is used to drive the first strip-shaped column and the first strip-shaped groove to move relatively along the direction parallel to the length direction of the flexible display panel.

[0013] Optionally, the plurality of telescopic connecting rods comprises one telescopic connecting rod connected with the first track block.

[0014] Optionally, the first strip-shaped groove is linear in shape, and the first strip-shaped column is linear in shape; or the first strip-shaped groove is arc-shaped in shape and convex in the direction away from the flexible display panel in the orthogonal projection on the second plane, the first strip-shaped column is arc-shaped in shape and convex in the direction away from the flexible display panel in the orthogonal projection on the second plane, and the second plane is perpendicular to the first plane and parallel to the length direction of the flexible display panel.

[0015] Optionally, the surface of the first driving structure has a gear structure, and the surface of the first strip-shaped column has a gear structure matched with the gear structure.

[0016] Optionally, the plurality of track blocks further comprises a plurality of third track blocks connected in sequence by rotation, the plurality of third track blocks are located on a side of the first track block away from the fixed part, and one of the plurality of third track blocks is rotationally connected with the first track block.

[0017] Optionally, the fixed part is connected with the second track block, the second track block connected with the fixed part further has a third connecting part, the fixed part has a fourth connecting part; one of the third connecting part and the fourth connecting part is a second strip-shaped slot, and the other is a second strip-shaped column, the second strip-shaped column is located in the second strip-shaped slot, the length direction of the second strip-shaped slot, the length direction of the second strip-shaped column and the length direction of the support unit are the same; the fixed part or the second track block having the second strip-shaped slot further comprises a second driving structure connected with the second strip-shaped column, the second driving structure is used to drive the second strip-shaped column and the second strip-shaped slot to move relatively along a direction parallel to the length direction of the flexible display panel.

[0018] Optionally, the second strip-shaped slot is linear in shape, and the second strip-shaped column is linear in shape; or, the second strip-shaped slot is arc-shaped in shape in a direction away from the flexible display panel in a second plane, and the second strip-shaped column is arc-shaped in shape in the direction away from the flexible display panel in the second plane, the second plane is perpendicular to the first plane and parallel to the length direction of the flexible display panel.

[0019] Optionally, the main body part of at least some of the plurality of track blocks has a first cross section and a second cross section, the first cross section is located on a side of the second cross section away from the display surface of the flexible display panel; in the length direction of the flexible display panel, the size of the second cross section is less than or equal to the size of the first cross section.

[0020] Optionally, the display device further comprises a housing, one end of the telescopic connecting rod is fixedly connected with the housing.

[0021] Optionally, the back plate has a first region, a second region and a third region connected in sequence in the length direction of the flexible display panel, the third region is close to the fixed part; the second region has a plurality of first hollow structures, the plurality of first hollow structures are strip-shaped and the extension direction is perpendicular to the length direction of the flexible display panel; the third region has a plurality of second hollow structures, the plurality of second hollow structures are strip-shaped and the extension direction is the same as the length direction of the flexible display panel.

[0022] On the other hand, a method for manufacturing a display device is provided, the method comprising: providing a support member and a flexible display panel; connecting the support member and the flexible display panel; wherein the support member comprises a fixing portion, a supporting unit and a telescopic link, the fixing portion is connected to one end of the supporting unit, the fixing portion is fixedly connected to one end of the flexible display panel, the supporting unit is slidably connected to the flexible display panel, the support member is used to support the flexible display panel to switch between a first state and a second state, the display surface of the flexible display panel is a plane in the first state, and the display surface is a curved surface in the second state, the telescopic link is connected to the support unit, and the extension direction of the telescopic link intersects with a first plane, and the first plane is the plane where the display surface of the flexible display panel is located in the first state.

[0023] The beneficial effects brought about by the technical solution provided by the embodiments of the present application include at least the following: by providing a display device including a flexible display panel and a support member, the support member includes a fixing portion, a support unit, and a telescopic link. The extension direction of the telescopic link intersects with the first plane, the telescopic link is connected to the support unit, one end of the support unit is connected to the fixing portion, and the fixing portion is fixedly connected to one end of the flexible display panel. Therefore, when the telescopic link is extended or retracted, the shape of the support unit can be changed, and the position of the fixing portion and one end of the flexible display panel connected to the fixing portion can be changed in turn, so that the flexible display panel switches between the first state and the second state. Since the flexible display panel and the support unit are slidably connected, the stress generated by the flexible display panel during the switching process can be released in time, which is beneficial to extending the service life of the flexible display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] FIG1 is a schematic diagram of a partial structure of a display device provided in an embodiment of the present application;

[0026] FIG2 is a schematic diagram of a partial structure of a display device provided in an embodiment of the present application;

[0027] FIG3 is a schematic plan view of the structure of a display device including a flexible display panel in a first state provided by an embodiment of the present application;

[0028] FIG4 is a schematic plan view of the structure of a display device including a flexible display panel in a second state provided by an embodiment of the present application;

[0029] FIG. 5 is a schematic view of a planar structure of another display device according to an embodiment of the present application;

[0030] FIG. 6 is a schematic view of a planar structure of another display device according to an embodiment of the present application;

[0031] FIG. 7 is a schematic view of a perspective structure and a planar structure at multiple angles of a first track block according to an embodiment of the present application;

[0032] FIG. 8 is a schematic view of a perspective structure and a planar structure at multiple angles of a second track block according to an embodiment of the present application;

[0033] FIG. 9 is a schematic view of a perspective structure and a planar structure at multiple angles of a fixed part according to an embodiment of the present application;

[0034] FIG. 10 is a schematic view of a perspective structure and a planar structure at multiple angles of a third track block according to an embodiment of the present application;

[0035] FIG. 11 is a schematic view of a planar structure of another display device including a flexible display panel in a first state according to an embodiment of the present application;

[0036] FIG. 12 is a schematic view of a planar structure of another display device including a flexible display panel in a second state according to an embodiment of the present application;

[0037] FIG. 13 is a schematic view of a driver viewing a display device in a first state and a second state respectively according to an embodiment of the present application;

[0038] FIG. 14 and FIG. 15 are schematic views of a planar structure of a flexible display panel at two viewing angles respectively according to an embodiment of the present application;

[0039] FIG. 16 is a schematic view of a planar structure of a back plate according to an embodiment of the present application;

[0040] FIG. 17 is a flowchart of a manufacturing method of a display device according to an embodiment of the present application. DETAILED DESCRIPTION

[0041] To make the objectives, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0042] FIG. 1 and FIG. 2 are schematic diagrams of partial structures of a display device according to an embodiment of the present application. FIG. 3 is a schematic diagram of a planar structure of a display device including a flexible display panel in a first state according to an embodiment of the present application, and FIG. 4 is a schematic diagram of a planar structure of a display device including a flexible display panel in a second state according to an embodiment of the present application. In combination with FIG. 1 to FIG. 4, the display device includes a flexible display panel 1 and a support 2 for supporting the flexible display panel 1 to switch between the first state and the second state, and a display surface of the flexible display panel 1 is planar in the first state and curved in the second state. The support 2 includes a fixed part 21, a support unit 22, and an extension link 23, the fixed part 21 is fixedly connected to one end of the flexible display panel 1, the fixed part 21 is connected to one end of the support unit 22, and the support unit 22 is slidably connected to the flexible display panel 1. The extension link 23 is connected to the support unit 22, and an extension direction of the extension link 23 intersects a first plane a, and the first plane a is a plane on which the display surface of the flexible display panel 1 lies in the first state. It should be noted that in FIG. 1 and FIG. 2, only the fixed part 21 and the support unit 22 of the support 2 are shown, and the structure of the extension link 23 is not shown.

[0043] Since the extension direction of the extension link 23 intersects the first plane a, and the extension link is connected to the support unit 22, when the extension link is extended or retracted, the shape of the support unit 22 can change. Since the fixed part 21 is connected to one end of the support unit 22, and the fixed part 21 is fixedly connected to one end of the flexible display panel 1, the change in the shape of the support unit 22 can cause the position of the fixed part 21 to change, and in turn cause the position of the one end of the flexible display panel 1 connected to the fixed part 21 to change, so that the display surface of the flexible display panel 1 switches between the plane and the curved surface. When the support supports the flexible display panel to switch between the first state and the second state, since the flexible display panel 1 is slidably connected to the support unit 22, if a local area of the flexible display panel 1 is subjected to stress due to extrusion or stretching during the switching between the first state and the second state, this part of stress can be released in time, and cannot be released in time due to the fixed connection between the flexible display panel and the support unit, which is beneficial to prolong the service life of the flexible display panel.

[0044] It should be noted that the fixed connection between the fixed part 21 and the one end of the flexible display panel 1 at M is at the M mark in the embodiments shown in FIG. 3 and FIG. 4. For example, the fixed part 21 and the one end of the flexible display panel 1 are fixedly connected by means of adhesion. Alternatively, the fixed part 21 and the one end of the flexible display panel 1 are fixedly connected by means of double-sided pressure sensitive adhesive (PSA) or very high bond (VHB) double-sided adhesive.

[0045] Exemplarily, as shown in FIG. 3 and FIG. 4, the display device further comprises a housing 3. The housing 3 shields one end of the flexible display panel 1 away from the fixed part 21, and the part of the display panel whose display surface is not shielded is the display area AA.

[0046] In summary, the display device provided by the embodiments of the present application comprises a flexible display panel and a support, the support comprises a fixed part, a support unit and an extension link. The extension direction of the extension link intersects the first plane, the extension link is connected with the support unit, one end of the support unit is connected with the fixed part, and the fixed part is fixedly connected with one end of the flexible display panel. Therefore, when the extension link extends or retracts, the shape of the support unit changes, and in turn the position of the fixed part and the end of the flexible display panel connected with the fixed part changes, so that the flexible display panel switches between the first state and the second state. Since the flexible display panel and the support unit are slidingly connected, the stress generated by the flexible display panel during switching can be released in time, which is beneficial to prolong the service life of the flexible display panel.

[0047] Exemplarily, as shown in FIG. 3 and FIG. 4, one end of the extension link 23 is fixedly connected with the housing 3. By fixing one end of the extension link 23 on the housing, the angle between the extension link 23 and the first plane can be adjusted by driving the extension link 23 to extend or retract at the end connected with the support unit 22 at the same time, so as to determine the position of the end of the extension link 23 connected with the support unit 22. For example, in the first condition, the motor drives the extension link 23 to form a first angle with the first plane, and the extension link 23 has a first length; in the second condition, the motor drives the extension link 23 to form a second angle with the first plane, and the extension link 23 has a second length. In these two cases, the positions of the end of the extension link 23 connected with the support unit 22 are different, and the curvature of the display surface is different. If one end of the extension link is fixed on a movable structure, it is possible that the positions of the end of the extension link 23 connected with the support unit 22 in the first condition and the second condition are the same, which further causes the curvature of the display surface of the flexible display panel 1 in these two conditions to be the same, thereby interfering with the operation of the motor.

[0048] Optionally, the extension link 23 comprises a sleeve and a column body connected with each other, the column body is connected with the support unit 22, the sleeve is connected with the housing 3, and the column body is located in the sleeve. The sleeve and the column body can also be connected by means of threaded connection or the like.

[0049] Optionally, the telescopic connecting rod 23 can also be a first connecting rod and a second connecting rod connected by a rotating connection, the second connecting rod being connected with the support unit 22, and the first connecting rod being connected with the casing 3. Under the driving of the motor, different angles can be formed between the first connecting rod and the second connecting rod, so that the telescopic connecting rod 23 can be telescopic, and the angle between the line connecting the connecting position of the telescopic connecting rod 23 with the casing and the connecting position of the telescopic connecting rod 23 with the support unit 22 and the first plane can be adjusted.

[0050] In a possible embodiment, as shown in FIG. 1, the support unit 22 has a sliding groove 220, the flexible display panel 1 includes a back plate 11, a cover plate 12, and a display structure 13 between the back plate 11 and the cover plate 12, and the edge of the back plate 11 is located in the sliding groove 220. During the switching of the flexible display panel 1 between the first state and the second state, the setting of the edge of the back plate 11 in the sliding groove 220 can play a limiting role to prevent the flexible display panel 1 from sliding out and falling off.

[0051] In a possible embodiment, the support unit 22 includes a plurality of track blocks 221 connected in sequence, and the telescopic connecting rod 23 is connected with one of the plurality of track blocks 221. By providing the plurality of track blocks 221 in the support unit 22, the shape of the support unit 22 can be more easily changed. Moreover, the process of the support unit with the telescopic connecting rod 23 connected with one of the plurality of track blocks 221 is relatively simple, that is, the switching of the flexible display panel 1 between the first state and the second state can be realized by using a relatively simple process. In other possible embodiments, the support unit 22 does not include the plurality of track blocks 221, but includes a support strip with a length direction parallel to the length direction x of the flexible display panel 1, and the support strip has a sliding groove with a length direction parallel to the length direction x of the flexible display panel 1, and the edge of the back plate 1 is located in the sliding groove.

[0052] Exemplarily, as shown in FIGS. 1 to 4, the length direction of the fixed part 21 intersects the length direction x of the flexible display panel 1, the support 2 includes two support units 22, the length direction of the support unit 22 is the same as the length direction x of the flexible display panel 1, and each support unit 22 is connected with the two ends of the fixed part 21, respectively. By providing the two support units 22 connected with the two ends of the fixed part 21, respectively, the support can have two opposite sliding grooves 220, and the opposite edges of the back plate 11 can be located in the two sliding grooves 220, respectively, so that the flexible display panel 1 is more stable during the switching between the first state and the second state and will not fall out.

[0053] FIG. 5 is a planar structural schematic diagram of another display device provided by an embodiment of the present application. As shown in FIG. 5, the support 2 comprises a plurality of telescopic links 23, the number of the plurality of telescopic links 23 is less than the number of the plurality of track blocks 221, and each telescopic link 23 is connected with the plurality of track blocks 221 respectively. In other possible embodiments, the number of the plurality of telescopic links 23 is equal to the number of the plurality of track blocks 221. By arranging the plurality of telescopic links 23, the position of each track block 221 connected with the telescopic link 23 can be controlled independently by controlling the telescopic degree of each telescopic link 23 and the angle between the telescopic link and the first plane respectively, so that the shape of the support unit 22 can be controlled more finely.

[0054] In a possible embodiment, the plurality of track blocks 221 comprises a first track block 2211 and at least one second track block 2212 connected in sequence, and the first track block 2211 is located on the side of the at least one second track block 2212 away from the fixed part 21.

[0055] The connection mode between the first track block and the second track block will be described below.

[0056] Exemplarily, the first track block 2211 has a first connecting part, and the second track block 2212 has a second connecting part. One of the first connecting part and the second connecting part is a first strip-shaped slot a, and the other is a first strip-shaped column b, the first strip-shaped column b is located in the first strip-shaped slot a, the length direction of the first strip-shaped slot a, the length direction of the first strip-shaped column b and the length direction of the support unit 22 are all the same, i.e., the length direction of the first strip-shaped slot a, the length direction of the first strip-shaped column b and the length direction x of the flexible display panel 1 are all the same. The track block 221 with the first strip-shaped slot a further comprises a first driving structure c connected with the first strip-shaped column b, and the first driving structure c is used to drive the first strip-shaped column b and the first strip-shaped slot a to move relatively in a direction parallel to the length direction x of the flexible display panel.

[0057] For example, as shown in FIG. 3 and FIG. 4, the plurality of track blocks 221 includes a first track block 2211 and a second track block 2212 connected in sequence. The first connecting part of the first track block 2211 is a first strip-shaped groove a, and the first track block 2211 further includes a first driving structure c. The second connecting part of the second track block 2212 is a first strip-shaped column b. By providing the first strip-shaped groove a, the second strip-shaped column b and the first driving structure c on the first track block 2211 and the second track block 2212, the first driving structure c is used to drive the relative movement of the first strip-shaped column b and the first strip-shaped groove a in the direction parallel to the length direction x of the flexible display panel, so that the length of the support unit 22 can be extended or shortened in the length direction x of the flexible display panel, thereby increasing or reducing the area of the display area AA of the display surface of the flexible display panel 1. In cooperation with the telescopic connecting rod 23, the display surface of the flexible display panel 1 can be switched between a plane and a curved surface while expanding or reducing the display area AA.

[0058] In other possible embodiments, the first connecting part of the first track block 2211 is a first strip-shaped column b, the second connecting part of the second track block 2212 is a first strip-shaped groove a, and the second track block 2212 further includes a first driving structure c.

[0059] In other possible embodiments, more second track blocks 2212 can also be designed according to the user's requirements for the length of the flexible display panel 1, or the curvature of the curved surface formed by the display surface of the flexible display panel 1 when the length of the telescopic connecting rod 23 is unchanged. Each second track block 2212 can include a first strip-shaped column b and a second strip-shaped groove d, and the first strip-shaped column b and the second strip-shaped groove d are matched to connect the adjacent two second track blocks 2212 through the first strip-shaped column b and the second strip-shaped groove d. In addition, the second track block 2212 with the second strip-shaped groove d also has a second driving structure f, which is used to drive the relative movement of the adjacent two second track blocks 2212 in the direction parallel to the length direction x of the flexible display panel.

[0060] FIG. 6 is a schematic diagram of the planar structure of another display device provided by an embodiment of the present application. Compared with the embodiment shown in FIG. 4, in the embodiment shown in FIG. 6, the display surface of the flexible display panel 1 is a curved surface. In the length direction x of the flexible display panel, the size of the display area AA in the embodiment shown in FIG. 6 is larger than that in the embodiment shown in FIG. 4, that is, the area of the display area AA in the embodiment shown in FIG. 6 is larger than that in the embodiment shown in FIG. 4.

[0061] Exemplarily, the plurality of telescopic links 23 includes one telescopic link connected with the first track block 2211. Since the first driving structure 2211 is located on the side of the second driving structure 2212 away from the fixed part 21, and the relative position between the first driving structure 2211 and the second driving structure 2212 can be controlled by the first driving structure c, if the support 2 includes one telescopic link 23, the telescopic link 23 is connected with the first track block 2211, as shown in FIG. 3, FIG. 4 or FIG. 6; or if the support 2 includes a plurality of telescopic links 23, at least one telescopic link 23 is connected with one first track block 2211, as shown in FIG. 5. In this way, the power for changing the position of the first track block 2211 and other structures (for example, other track blocks 221 except the first track block 2211 and the second track block 2212) located on the side of the first track block 2211 away from the fixed part 21 is provided by the telescopic link 23, while the power for changing the position of the second track block 2212 located on the side of the first track block 2211 close to the fixed part 21 is provided by the first driving structure c.

[0062] In a possible embodiment, the first strip-shaped groove a is in the shape of an arc convex to the direction away from the flexible display panel 1 in the orthographic projection of the second plane, and the first strip-shaped column b is in the shape of an arc convex to the direction away from the flexible display panel 1 in the orthographic projection of the second plane, the second plane being perpendicular to the first plane and parallel to the plane parallel to the length direction x of the flexible display panel 1. By setting the first strip-shaped groove a and the first strip-shaped column b in the shape of an arc, the first track block 2211 and the second track block 2212 connected therewith can be relatively away from each other to increase the area of the display area AA under the driving of the first driving structure c, and at the same time, the display surface above the first track block 2211 and the second track block 2212 can be curved, so that even if the telescopic link 23 is not elongated or shortened, and only the first track block 2211 and the second track block 2212 are relatively away from each other, the purpose of changing the display surface from a plane to a curved surface, or from a curved surface to a curved surface with a greater bending degree can be achieved.

[0063] In another possible embodiment, the first strip-shaped groove a is in the shape of a straight line, and the first strip-shaped column b is in the shape of a straight line. The straight-line-shaped first strip-shaped groove a and the first strip-shaped column b can cooperate to achieve the purpose of increasing or decreasing the area of the display area AA.

[0064] FIG. 7 is a perspective structural schematic diagram and plan structural schematic diagrams at multiple angles of a first track block according to an embodiment of the present application. As shown in FIG. 7, the first track block 2211 has a first strip-shaped groove a and a first driving structure c, and the surface of the first driving structure c has a gear structure (not shown in the figure). FIG. 8 is a perspective structural schematic diagram and plan structural schematic diagrams at multiple angles of a second track block according to an embodiment of the present application. As shown in FIG. 8, the second track block 2212 has a first strip-shaped column b, and the surface of the first strip-shaped column a has a gear structure matching the gear structure. The first driving structure c drives the matching gear structure by rotating the gear structure of the surface, thereby driving the first strip-shaped column b to move away from or close to the first strip-shaped groove a in the length direction x of the flexible display panel 1. Exemplarily, the first driving structure is a motor driving structure.

[0065] The connection mode between the second track block and the fixed part will be described below.

[0066] In a possible embodiment, the fixed part 21 is connected with the second track block 2212, and the second track block 2212 connected with the fixed part 21 further has a third connecting part, and the fixed part 21 has a fourth connecting part. One of the third connecting part and the fourth connecting part is a second strip-shaped groove d, and the other is a second strip-shaped column e, the second strip-shaped column e is located in the second strip-shaped groove d, and the length direction of the second strip-shaped groove d, the length direction of the second strip-shaped column, and the length direction of the support unit are the same, i.e., the length direction of the second strip-shaped groove d, the length direction of the second strip-shaped column e, and the length direction x of the flexible display panel 1 are the same. The fixed part 21 or the second track block 2212 having the second strip-shaped groove d further includes a second driving structure f connected with the second strip-shaped column d, and the second driving structure f is used to drive the second strip-shaped column e to move relatively in a direction parallel to the length direction x of the flexible display panel.

[0067] For example, as shown in FIG. 3, FIG. 4, and FIG. 6, the fourth connecting part of the fixed part 21 is the second strip-shaped column e, the third connecting part of the second track block 2212 connected with the fixed part 21 is the second strip-shaped groove d, and the second track block 2212 further includes the second driving structure f. By providing the second strip-shaped groove d, the second strip-shaped column e, and the second driving structure f on the second track block 2212 and the fixed part 21, the second driving structure f is used to drive the second strip-shaped column e and the second strip-shaped groove d to move relatively in a direction parallel to the length direction x of the flexible display panel, so that the length of the support unit 22 can be lengthened or shortened in the length direction x of the flexible display panel, thereby the area of the display area AA of the display surface of the flexible display panel 1 can be increased or reduced. In cooperation with the stretching and contracting of the stretching and contracting connecting rod 23, the display surface of the flexible display panel 1 can be switched between a plane and a curved surface while expanding or reducing the display area AA.

[0068] In other possible embodiments, the third connecting part of the second track block 2212 connected with the fixed part 21 is a second strip-shaped column e, the fourth connecting part of the fixed part 21 is a second strip-shaped groove d, and the fixed part 21 further comprises a second driving structure f.

[0069] In a possible embodiment, the second strip-shaped groove d is in the shape of an arc convex to the direction away from the flexible display panel 1 in the orthographic projection of the second plane, and the second strip-shaped column e is in the shape of an arc convex to the direction away from the flexible display panel 1 in the orthographic projection of the second plane. By setting the second strip-shaped groove d and the second strip-shaped column e in the shape of an arc, the connected fixed part 21 and the second track block 2212 can be relatively distanced apart under the driving of the second driving structure f to increase the area of the display region AA, and at the same time, the display surface above the second track block 2212 connected with the fixed part 21 can be made to have a curved arc, so that even if the telescopic connecting rod 23 is not elongated or shortened, only the relative distance between the fixed part 21 and the second track block 2212, the purpose of changing the display surface from a plane to a curved surface or from a curved surface to a curved surface with a greater bending degree can be achieved.

[0070] In another possible embodiment, the second strip-shaped groove d is in the shape of a straight line, and the second strip-shaped column e is in the shape of a straight line. The straight-line-shaped second strip-shaped groove d and the straight-line-shaped second strip-shaped column e can cooperate to achieve the purpose of increasing the area of the display region AA.

[0071] As shown in FIG. 8, the second track block 2212 connected with the fixed part 21 further comprises a second strip-shaped groove d and a second driving structure f, and the surface of the second driving structure f has a gear structure (not shown in the figure). FIG. 9 is a perspective structural schematic diagram of a fixed part and planar structural schematic diagrams at multiple angles provided in an embodiment of the present application. As shown in FIG. 9, the fixed part 21 has a second strip-shaped column e, and the surface of the second strip-shaped column e has a gear structure matched with the sawtooth structure. The second driving structure f drives the matched gear structure by rotating the gear structure on the surface, so as to drive the second strip-shaped column e and the second strip-shaped groove d to relatively move away from or close to each other in the length direction x of the flexible display panel 1. Exemplarily, the second driving structure is a motor driving structure.

[0072] The following describes other structures of the support unit 22 on the side of the first track block 2211 away from the fixed part 21.

[0073] In a possible embodiment, as shown in FIG. 3 and FIG. 4, the plurality of track blocks 221 further comprises a plurality of third track blocks 2213 connected in sequence by rotation, the plurality of third track blocks 2213 are located on the side of the first track block 2211 away from the fixed part 32, and one of the plurality of third track blocks 2213 is connected with the first track block 2211 by rotation. By arranging the plurality of third track blocks 2213, when the telescopic connecting rod 23 drives the first track block 2211 to move, the side of the plurality of third track blocks 2213 close to the flexible display panel 1 can naturally form an arc or recover to a plane under the drive of the first track block 2211, so as to switch the display surface above the plurality of third track blocks 2213 between a plane and a curved surface.

[0074] FIG. 10 is a perspective structural schematic view and a plan structural schematic view at multiple angles of a third track block provided in an embodiment of the present application. In combination with FIG. 2 and FIG. 10, two adjacent third track blocks 2213 are connected by a hole-shaft structure. For example, for two adjacent third track blocks 2213, the third track block 2213 away from the first track block 2211 has a connecting shaft h, and the third track block 2213 close to the first track block 2211 has a connecting hole g, the connecting shaft h matches the connecting hole g and is located in the connecting hole g. Alternatively, for two adjacent third track blocks 2213, the third track block 2213 away from the first track block 2211 has a connecting hole g, and the third track block 2213 close to the first track block 2211 has a connecting shaft h.

[0075] Exemplarily, in the direction parallel to the first plane and perpendicular to the length direction x of the flexible display panel 1, the size of the connecting shaft h is smaller than the size of the third track block 2213, so as to avoid damaging the flexible display panel 1.

[0076] Exemplarily, the first track block 2211 and the third track block 2213 connected with the first track block 2211 are also connected by a hole-shaft structure. As shown in FIG. 2, FIG. 7 and FIG. 10, the first track block 2211 has a connecting hole g, and the third track block 2213 connected with the first track block 2211 has a connecting shaft h.

[0077] In the embodiments shown in FIG. 1 to FIG. 10, the support unit 22 only comprises 3 third track blocks 2213. In other possible embodiments, more second track blocks 2212 can be designed according to the length and other requirements of the flexible display panel 1 by the user. FIG. 11 is a plan structural schematic view of a display device provided in an embodiment of the present application, which comprises a flexible display panel in a first state, and FIG. 12 is a plan structural schematic view of a display device provided in an embodiment of the present application, which comprises a flexible display panel in a second state. As shown in FIG. 11 and FIG. 12, the support unit 22 can also comprise 6 third track blocks 2213.

[0078] In the embodiments shown in FIGS. 1-12, the support unit 22 further comprises a bearing portion 222 connected to one of the third track blocks 2213 farthest from the distance fixing portion 21. In a direction parallel to the length direction x of the flexible display panel 1, the bearing portion 222 has a size larger than that of the track block 221, and the size of the bearing portion 222 affects the size of the area in the display surface of the flexible display panel 1 in which a curved surface cannot be formed. Alternatively, the fourth track block 222 is connected to the third track block 2213 by a hole-shaft structure.

[0079] The position of the sliding groove 220 is described below by way of example.

[0080] In one possible embodiment, in combination with FIGS. 2 and 7, the projection of the sliding groove 220 on the second plane at least partially overlaps the projection of the connecting hole g of the first track block 2211 on the second plane; in combination with FIGS. 2 and 10, the projection of the sliding groove 220 on the second plane at least partially overlaps the projection of the connecting hole g of the third track block 2213 on the second plane, and the projection of the sliding groove 220 on the second plane at least partially overlaps the projection of the connecting shaft h of the third track block 2213 on the second plane.

[0081] In other possible embodiments, the projection of the sliding groove 220 on the second plane can also be located on the side of the projection of the connecting hole g of the first track block 2211 on the second plane close to the cover plate 11, and simultaneously, the projection of the sliding groove 220 on the second plane is located on the side of the projection of the connecting hole g of the third track block 2213 on the second plane close to the cover plate 11, and the projection of the sliding groove 220 on the second plane is located on the side of the projection of the connecting shaft h of the third track block 2213 on the second plane close to the cover plate 11. In this embodiment, in a direction parallel to the first plane and perpendicular to the length direction x of the flexible display panel 1, the size of the connecting shaft h connecting two adjacent third track blocks 2213 or connecting the third track block 2213 and the first track block 2211 does not affect the flexible display panel 1.

[0082] The display device shown in the embodiments of the present application can be a vehicle-mounted display device, which is convenient for the driver to use. When not in use, the display device can be set to the first state, i.e., the display surface is a flat surface, to provide more space in the vehicle; when driving, the driver can set the display device to bend towards the driver to become an arc shape according to the driver's height and driving habits, etc., so that the driver has a larger viewing angle and a more comfortable visual experience when looking at the screen. In comparison, if a curved display device is directly arranged in the vehicle, the curved display device will occupy a larger space in the vehicle, and the user experience will be poor.

[0083] FIG. 13 is a schematic diagram of a driver viewing the display device in the first state and the second state according to an embodiment of the present application. As shown in FIG. 13, in the condition that the size of the display region AA in the length direction x of the flexible display panel 1 is the same, the angle between the line of sight of the driver and the display surface is the smallest α when the display surface is curved, and the angle between the line of sight of the driver and the display surface is the smallest β when the display surface is flat, and α > β. In this application scenario, since the driver can only be located at one side of the display device, the display surface only needs to be bent towards the driver.

[0084] For example, the display region of the vehicle display device includes two parts, an instrument area and a center control area, and the center control area is located at the side of the instrument area close to the fixed part 21. For example, when driving, the center control area can be bent into an arc towards the driver under the cooperation of the telescopic connecting rod 23, the support unit 22 and the fixed part 21, and the flexible display panel can also be slid to pull out the part of the flexible display panel 1 blocked by the casing 3, thereby increasing the area of the display region AA. In this process, the flexible display panel extends forward like a runway, and the dynamic variable bending radius and the adjustment of the area of the display region can give the vehicle a stronger sense of technology and dynamic beauty, and give people a shocking visual impact.

[0085] In a possible embodiment, in combination with FIG. 7, FIG. 8 and FIG. 10, at least part of the track blocks 221 has a first cross section and a second cross section, and the first cross section is located at the side of the second cross section away from the display surface of the flexible display panel 1. In the length direction x of the flexible display panel 1, the size k of the second cross section is less than or equal to the size j of the first cross section. When only the display surface needs to be bent in one direction from a flat surface to form a curved surface, k can be set to be less than or equal to j to prevent the display surface from being bent in the opposite direction. For the track blocks in FIG. 7, FIG. 8 or FIG. 10, when the first cross section and the second cross section are both located in the upper half of the track block, or the first cross section is located in the lower half of the track block and the second cross section is located in the upper half of the track block, in the length direction x of the flexible display panel 1, the size k of the second cross section is less than the size j of the first cross section; when the first cross section and the second cross section are both located in the lower half of the track block, the size k of the second cross section is equal to the size j of the first cross section. Here, the upper half refers to the side of the track block close to the sliding groove 220 and the lower half refers to the side of the track block away from the cover plate 11.

[0086] It should be noted that, for the first track block 2211, in the embodiment shown in FIG. 7, the main body part of the first track block 2211 refers to the part other than the connecting hole g; for the second track block 2212, in the embodiment shown in FIG. 8, the second track block 2212 refers to the part other than the strip-shaped column b; for the third track block 2213, in the embodiment shown in FIG. 10, the third track block refers to the part other than the connecting hole g and the connecting shaft h.

[0087] It should be noted that the shape of each third track block 2213 can be different, for example, in the embodiments shown in FIG. 3 or FIG. 4, the upper half part of the third track block 2213 farthest from the fixed part 21 is different in shape from the upper half part of the other third track blocks 2213.

[0088] In other possible embodiments, the display device can also be a billboard or the like product, and the viewers can be located at multiple positions relative to the display device, so that the flexible display panel can have two bending directions to facilitate the viewers at different positions to watch. In this application scenario, in the length direction x of the flexible display panel 1, the size k of the second cross section can be not less than or equal to the size j of the first cross section. Instead, in the length direction x of the flexible display panel 1, the size of the upper half part of the track block is less than the size at the part of the track block for arranging the sliding groove 220, and the size of the lower half part of the track block is less than the size at the part of the track block for arranging the sliding groove 220, so as to facilitate the display panel to bend in two directions. Here, the meanings of the upper half part of the track block and the lower half part of the track block have been explained in the foregoing, and will not be repeated here.

[0089] The structure of the flexible display panel will be described below.

[0090] FIG. 14 and FIG. 15 are schematic diagrams of the planar structure of a flexible display panel provided in an embodiment of the present application at two viewing angles, respectively. As shown in FIG. 1, FIG. 2, FIG. 14 and FIG. 15, the flexible display panel includes a back plate 11, a cover plate 12 and a display structure 13 located between the back plate 11 and the cover plate 12, wherein the opposite two edges of the back plate 11 are located in the sliding grooves 220 of the two support units 22, respectively.

[0091] As shown in FIG. 14 and FIG. 15, the display structure 13 includes a display screen 131. The display screen 131 can be a liquid crystal display screen, an OLED (Organic Light Emitting Diode) display screen, a QLED (Quantum Dot Light Emitting Diode) display screen or the like, which is not specifically limited in the embodiments of the present application.

[0092] Exemplarily, the flexible display panel 1 further comprises a packaging circuit board 14 connected with the display screen 131. Optionally, as shown in FIG. 14, the packaging circuit board 14 can be a Chip On Film (COF) circuit board, the packaging circuit board 14 comprises a film circuit board body, i.e., a COF film, and the film circuit board has a driving chip 15 thereon. In other possible embodiments, the packaging circuit board 14 can also be a Chip On Glass (COG) circuit board or a Chip On Pi (COP) circuit board. Exemplarily, an end of the packaging circuit board 14 away from the display screen 131 is fixed to the back of the display screen 130 through a first adhesive layer 140.

[0093] Exemplarily, as shown in FIG. 14, the flexible display panel further comprises a main board 16 connected with the packaging circuit board 14. The main board 16 controls the driving chip 15 on the packaging circuit board 14, and thus controls the display screen 131 to display a picture. Exemplarily, the main board 16 is fixed to the back of the display screen 131 through a second adhesive layer 160.

[0094] Exemplarily, as shown in FIG. 14, the display structure 13 further comprises a polarizer 132, which is located on the side of the display screen 131 close to the cover plate 12, i.e., the polarizer 132 is located on the light-out surface of the display screen 131. The display structure further comprises a connecting layer 133, which can be made of an optically clear adhesive (OCA), such as a liquid optical clear adhesive (LOCA) or a thermal-melt optical clear adhesive (TOCA). The connecting layer 133 can also be made of other materials having adhesive effect, such as ultraviolet curing adhesive.

[0095] Exemplarily, as shown in FIG. 14, the display structure 13 further comprises a support sheet 134, which is located on the side of the display screen 131 away from the cover plate 12, i.e., the support sheet 134 is located on the back of the display screen 131, to support the display screen 131.

[0096] Exemplarily, as shown in FIG. 14, the display structure further comprises a first adhesive layer 135 and a second adhesive layer 136, the first adhesive layer 135 is used to connect the support sheet 134 and the display screen 131, and the second adhesive layer 136 is used to connect the support sheet 134 and the back plate 11. Optionally, the first adhesive layer 135 and the second adhesive layer 136 are both PSA layers.

[0097] FIG. 16 is a schematic view of a planar structure of a backboard according to an embodiment of the present application. As shown in FIG. 16, the backboard 11 has a first region 111, a second region 112 and a third region 113 connected in sequence in the length direction x of the flexible display panel, and the third region 113 is close to the fixed part 21. It should be noted that in FIG. 16, the reference numeral 220 is used to show the part of the flexible display panel 1 located in the sliding groove 220 of the support unit 22 in the length direction x perpendicular to the flexible display panel.

[0098] As shown in FIG. 16, the second region 112 has a plurality of first hollow structures 1120, and the plurality of first hollow structures 1120 are in a strip shape and extend in a direction intersecting the length direction x of the flexible display panel; the third region 113 has a plurality of second hollow structures 1130, and the plurality of second hollow structures 1130 are in a strip shape and extend in the same direction as the length direction x of the flexible display panel. Since the third region needs to be able to bend and drive the entire flexible display panel 1 to move, the design shown in FIG. 16 can make the third region 113 connected with the fixed part 21 have a certain bending performance (the bending performance of the third region 113 is between the bending performance of the first region 111 and the bending performance of the second region 112), and the third region 113 also has a certain supporting force (the supporting force of the third region 113 is between the supporting force of the first region 111 and the supporting force of the second region 112).

[0099] FIG. 17 is a flowchart of a manufacturing method of a display device according to an embodiment of the present application. As shown in FIG. 17, the method comprises the following steps:

[0100] In step 1701, a support member and a flexible display panel are provided.

[0101] In step 1702, the support member and the flexible display panel are connected.

[0102] The support member comprises a fixed part, a support unit and an extension link, the fixed part is connected with one end of the support unit, the fixed part is fixedly connected with one end of the flexible display panel, the support unit is slidingly connected with the flexible display panel, the support member is used to support the flexible display panel to switch between a first state and a second state, the display surface of the flexible display panel is a plane in the first state, and the display surface is a curved surface in the second state, the extension link is connected with the support unit, and the extension link extends in a direction intersecting a first plane, and the first plane is a plane in which the display surface of the flexible display panel is located in the first state.

[0103] In summary, the manufacturing method of the display device provided by the embodiments of the present application manufactures a display device including a flexible display panel and a support. The support includes a fixed part, a support unit and a telescopic connecting rod. The extension direction of the telescopic connecting rod intersects the first plane, the telescopic connecting rod is connected with the support unit, one end of the support unit is connected with the fixed part, and the fixed part is fixedly connected with one end of the flexible display panel. Therefore, when the telescopic connecting rod is extended or retracted, the shape of the support unit can be changed, and the position of the fixed part and the one end of the flexible display panel connected with the fixed part is changed in turn, so that the flexible display panel is switched between the first state and the second state. Since the flexible display panel and the support unit are slidingly connected, the stress generated by the flexible display panel during the switching process can be released in time, which is beneficial to prolong the service life of the flexible display panel.

[0104] It should be noted that the terms used in the part of the embodiments of the present application are only used to explain the embodiments of the present application, and are not intended to limit the present application. Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be understood as the usual meaning understood by those skilled in the art to which the embodiments of the present application belong. The terms "first", "second", "third" and similar terms used in the specification and claims of the patent application of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "a" and similar terms do not represent a quantity limitation, but represent the existence of at least one. The terms "include" or "contain" and similar terms mean that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, and do not exclude other elements or objects. The orientation terms mentioned in the embodiments of the present application, such as "top", "bottom", "upper", "lower", "left" or "right", are only the direction of the drawings, therefore, the orientation terms are used to better and more clearly illustrate and understand the embodiments of the present application, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0105] The above is only an optional embodiment of the present application, and does not limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A display device, characterized in that: The display device includes a flexible display panel and a support member, wherein the support member is used to support the flexible display panel to switch between a first state and a second state, wherein a display surface of the flexible display panel is a flat surface in the first state and a curved surface in the second state; The support member includes a fixing portion, a supporting unit, and a telescopic connecting rod, wherein the fixing portion is fixedly connected to one end of the flexible display panel, the fixing portion is connected to one end of the supporting unit, and the supporting unit is slidably connected to the flexible display panel; The telescopic connecting rod is connected to the supporting unit, and an extending direction of the telescopic connecting rod intersects with a first plane, where the first plane is a plane where the display surface of the flexible display panel is located in the first state.

2. The display device according to claim 1, wherein The supporting unit has a sliding groove, and the flexible display panel includes a back plate, a cover plate, and a display structure located between the back plate and the cover plate. The edge of the back plate is located in the sliding groove.

3. The display device according to claim 2, wherein: The supporting unit includes a plurality of track blocks connected in sequence, and the telescopic connecting rod is connected to one of the plurality of track blocks.

4. The display device according to claim 3, wherein The support member includes a plurality of telescopic links, the number of which is less than or equal to the number of the track blocks, and each of the telescopic links is connected to the track blocks respectively.

5. The display device according to claim 3 or 4, characterized in that The length direction of the fixing portion intersects with the length direction of the flexible display panel. The supporting member includes two supporting units. The length direction of the supporting unit is the same as the length direction of the flexible display panel. Each of the supporting units is connected to both ends of the fixing portion.

6. The display device according to claim 5, wherein: The plurality of track blocks include a first track block and at least one second track block connected in sequence, the first track block is located on a side of the at least one second track block away from the fixing portion, the first track block has a first connecting portion, and the second track block has a second connecting portion; One of the first connecting portion and the second connecting portion is a first strip groove, and the other is a first strip column. The first strip column is located in the first strip groove. The length direction of the first strip groove, the length direction of the first strip column, and the length direction of the supporting unit are all the same. The track block having the first strip groove further includes a first driving structure, which is connected to the first strip column and is used to drive the first strip column and the first strip groove to move relative to each other in a direction parallel to the length direction of the flexible display panel.

7. The display device according to claim 6, wherein: The plurality of telescopic links include one telescopic link connected to the first track block.

8. The display device according to claim 6 or 7, characterized in that The shape of the first strip groove is a straight line, and the shape of the first strip column is a straight line; or, The orthographic projection of the first strip groove on the second plane is an arc convex in the direction away from the flexible display panel, the orthographic projection of the first strip column on the second plane is an arc convex in the direction away from the flexible display panel, and the second plane is a plane perpendicular to the first plane and parallel to the length direction of the flexible display panel.

9. The display device according to claim 6 or 7, characterized in that: The surface of the first driving structure has a gear tooth structure, and the surface of the first bar-shaped column has a spoke structure matching the sawtooth structure.

10. The display device according to claim 6 or 7, characterized in that: The plurality of track blocks further include a plurality of third track blocks rotatably connected in sequence. The plurality of third track blocks are located on a side of the first track block away from the fixing portion, and one of the plurality of third track blocks is rotatably connected to the first track block.

11. The display device according to claim 6 or 7, characterized in that: The fixing portion is connected to the second track block, the second track block connected to the fixing portion further has a third connecting portion, and the fixing portion has a fourth connecting portion; One of the third connecting portion and the fourth connecting portion is a second strip groove, and the other is a second strip column, the second strip column is located in the second strip groove, and the length direction of the second strip groove, the length direction of the second strip column and the length direction of the supporting unit are the same; The fixing portion or the second track block having the second strip groove also includes a second driving structure, which is connected to the second strip column, and the second driving structure is used to drive the second strip column and the second strip groove to move relative to each other in a direction parallel to the length direction of the flexible display panel.

12. The display device according to claim 11, wherein The second strip groove is in a straight line shape, and the second strip column is in a straight line shape; or, The orthographic projection of the second strip groove on the second plane is an arc convex in the direction away from the flexible display panel, and the orthographic projection of the second strip column on the second plane is an arc convex in the direction away from the flexible display panel. The second plane is a plane perpendicular to the first plane and parallel to the length direction of the flexible display panel.

13. The display device according to any one of claims 3 to 4, claims 6 to 7 and claim 12, characterized in that: The main body of at least some of the track blocks of the plurality of track blocks has a first cross section and a second cross section, wherein the first cross section is located on a side of the second cross section away from the display surface of the flexible display panel; In the length direction of the flexible display panel, a size of the second cross-section is smaller than or equal to a size of the first cross-section.

14. The display device according to any one of claims 1 to 4, claims 6 to 7 and claim 12, characterized in that: The display device further includes a housing, and one end of the telescopic connecting rod is fixedly connected to the housing.

15. The display device according to claims 2 to 4, claims 6 to 7 and claim 12, characterized in that The back plate has a first area, a second area, and a third area that are sequentially connected in the length direction of the flexible display panel, and the third area is close to the fixing portion; The second area has a plurality of first hollow structures, and the plurality of first hollow structures are strip-shaped and extend in a direction intersecting with a length direction of the flexible display panel; The third area has a plurality of second hollow structures, and the plurality of second hollow structures are in a strip shape and extend in the same direction as the length direction of the flexible display panel.

16. A method for manufacturing a display device, characterized in that: The method comprises: providing a support member and a flexible display panel; connecting the support member and the flexible display panel; In which, the support member includes a fixed part, a support unit and a telescopic connecting rod, the fixed part is connected to one end of the support unit, the fixed part is fixedly connected to one end of the flexible display panel, the support unit is slidably connected to the flexible display panel, and the support member is used to support the flexible display panel to switch between a first state and a second state, the display surface of the flexible display panel is a plane in the first state, and the display surface is a curved surface in the second state, the telescopic connecting rod is connected to the support unit, and the extension direction of the telescopic connecting rod intersects with the first plane, and the first plane is the plane where the display surface of the flexible display panel is located in the first state.

Images