Display device and method of manufacturing the same

Abstract

The application discloses a display device, and belongs to the technical field of display. The display device comprises a flexible display panel and a support. The support is used for supporting the display surface of the flexible display panel to switch between a plane and a curved surface. The support comprises a fixed part, a supporting unit and a telescopic connecting rod. The fixed part is fixedly connected with one end of the flexible display panel. The fixed part is connected with one end of the supporting unit. The supporting unit is slidably connected with the flexible display panel. The telescopic connecting rod is connected with the supporting unit. The extension direction of the telescopic connecting rod intersects with a first plane. The first plane is a plane where the display surface of the flexible display panel is located when the display surface is a plane. The application realizes the effect of prolonging the service life of the flexible display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display device and a method for manufacturing the same. Background Technology

[0002] Display devices capable of switching between curved and flat displays have a wide range of applications in daily life, such as in-vehicle displays and electronic devices like billboards. Support components are an important part of display devices, used to support the flexible display panel.

[0003] In related technologies, flexible display panels are attached to a support structure, and the flexible display panels change shape with the support structure to achieve curved and flat display functions.

[0004] However, since the flexible display panel is attached to the support, when the display device switches between flat and curved surfaces, the stress generated by compression or stretching in some areas of the flexible display panel is difficult to release, affecting the service life of the flexible display panel. Summary of the Invention

[0005] This application provides a display device and its manufacturing method, which can realize both flat and curved display functions, and has minimal impact on the lifespan of the flexible display panel. The technical solution is as follows:

[0006] On one hand, a display panel is provided. The display device includes a flexible display panel and a support member. The support member supports the flexible display panel in switching between a first state and a second state. The display surface of the flexible display panel is planar in the first state and curved in the second state. The support member includes a fixing part, a support unit, and a telescopic link. The fixing part is fixedly connected to one end of the flexible display panel and connected to one end of the support unit. The support unit is slidably connected to the flexible display panel. The telescopic link is connected to the support unit, and the extension direction of the telescopic link intersects a first plane, which is the plane where the display surface of the flexible display panel is located in the first state.

[0007] Optionally, the support unit has a 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, with the edge of the back plate located within the groove.

[0008] Optionally, the support unit includes a plurality of track blocks connected in sequence, and the telescopic link is connected to one of the plurality of track blocks.

[0009] Optionally, the support member includes a plurality of telescopic links, the number of which is less than or equal to the number of which are the plurality of track blocks, and each of the telescopic links is connected to the plurality of track blocks respectively.

[0010] Optionally, the length direction of the fixing part intersects with the length direction of the flexible display panel, and the support member includes two support units. The length direction of the support unit is the same as the length direction of the flexible display panel, and each support unit is connected to both ends of the fixing part.

[0011] Optionally, 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 the side of the at least one second track block away from the fixing 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 groove, and the other is a first strip column. The first strip column is located in the first strip groove, and the length direction of the first strip groove, the length direction of the first strip column, and the length direction of the support unit are all the same. The track block with the first strip groove further includes a first driving structure. The first driving structure is connected to the first strip column, and the first driving structure 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.

[0012] Optionally, the plurality of telescopic links includes one of the telescopic links connected to the first track block.

[0013] Optionally, the first strip groove is straight in shape, and the first strip column is straight in shape; or, the orthographic projection of the first strip groove onto the second plane is an arc protruding in a direction away from the flexible display panel, and the orthographic projection of the first strip column onto the second plane is an arc protruding in a direction away from the flexible display panel, wherein the second plane is a plane perpendicular to the first plane and parallel to the length direction of the flexible display panel.

[0014] Optionally, the surface of the first drive structure has a toothed structure, and the surface of the first strip column has a wheel-shaped structure that matches the toothed structure.

[0015] Optionally, the plurality of track blocks further includes a plurality of third track blocks that are rotatably connected in sequence. The plurality of third track blocks are located on the side of the first track block away from the fixed part, and one of the plurality of third track blocks is rotatably connected to the first track block.

[0016] Optionally, the fixing part is connected to the second track block, and the second track block connected to the fixing part also has a third connecting part, and the fixing part has a fourth connecting part; one of the third connecting part and the fourth connecting part 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 support unit are the same; the fixing part or the second track block having the second strip groove further includes a second driving structure, the second driving structure 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.

[0017] Optionally, the second strip groove is straight in shape, and the second strip column is straight in shape; or, the orthographic projection of the second strip groove onto the second plane is an arc protruding in a direction away from the flexible display panel, and the orthographic projection of the second strip column onto the second plane is an arc protruding in a direction away from the flexible display panel, wherein the second plane is a plane perpendicular to the first plane and parallel to the length direction of the flexible display panel.

[0018] Optionally, at least a portion of the track blocks have a first cross section and a second cross section in their main body portion, the first cross section being located on the side of the second cross section away from the display surface of the flexible display panel; and 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.

[0019] Optionally, the display device further includes a housing, and one end of the telescopic link is fixedly connected to the housing.

[0020] Optionally, the back plate has a first region, a second region, and a third region that are sequentially connected along the length of the flexible display panel, the third region being close to the fixing part; the second region has a plurality of first hollow structures, the plurality of first hollow structures being strip-shaped and extending in a direction intersecting the length of the flexible display panel; the third region has a plurality of second hollow structures, the plurality of second hollow structures being strip-shaped and extending in the same direction as the length of the flexible display panel.

[0021] 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 includes a fixing part, a support unit and a telescopic link, the fixing part is connected to one end of the support unit, the fixing part is fixedly connected to one end of the flexible display panel, the support 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 planar in the first state and curved in the second state, the telescopic link is connected to the support unit, the extension direction of the telescopic link intersects with a first plane, the first plane being the plane where the display surface of the flexible display panel is located in the first state.

[0022] The beneficial effects of the technical solution provided in this application include at least the following: By providing a display device comprising a flexible display panel and a support member, the support member includes a fixing part, a support unit, and a telescopic link. The extension direction of the telescopic link intersects with a first plane. The telescopic link is connected to the support unit, one end of the support unit is connected to the fixing part, and the fixing part is fixedly connected to one end of the flexible display panel. Therefore, when the telescopic link extends or retracts, the shape of the support unit can change, and in turn, the positions of the fixing part and one end of the flexible display panel connected to the fixing part change, allowing the flexible display panel to switch between a first state and a second state. Because 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 a timely manner, which helps to extend the service life of the flexible display panel. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a partial structural schematic diagram of a display device provided in an embodiment of this application;

[0025] Figure 2 This is a partial structural schematic diagram of a display device provided in an embodiment of this application;

[0026] Figure 3 This is a schematic diagram of a planar structure of a display device including a flexible display panel in a first state, provided by an embodiment of this application;

[0027] Figure 4This is a schematic diagram of a planar structure of a display device including a flexible display panel in a second state, provided in an embodiment of this application;

[0028] Figure 5 This is a schematic diagram of the planar structure of another display device provided in an embodiment of this application;

[0029] Figure 6 This is a schematic diagram of the planar structure of another display device provided in this application embodiment;

[0030] Figure 7 This application provides a three-dimensional structural diagram of a first track block and a planar structural diagram from multiple angles.

[0031] Figure 8 This application provides a three-dimensional structural diagram of a second track block and a planar structural diagram from multiple angles.

[0032] Figure 9 This application provides a three-dimensional structural diagram of a fixing part and a planar structural diagram from multiple angles.

[0033] Figure 10 This application provides a three-dimensional structural diagram of a third track block and a planar structural diagram from multiple angles.

[0034] Figure 11 This is a schematic diagram of a planar structure of a display device including a flexible display panel in a first state, as provided in an embodiment of this application.

[0035] Figure 12 This is a schematic diagram of a planar structure of a display device including a flexible display panel in a second state, as provided in an embodiment of this application.

[0036] Figure 13 This is a schematic diagram of a driver viewing a display device that is in a first state and a second state, as provided in an embodiment of this application;

[0037] Figure 14 and Figure 15 This is a schematic diagram of the planar structure of a flexible display panel provided in an embodiment of this application from two different viewing angles;

[0038] Figure 16 This is a schematic diagram of the planar structure of a backplate provided in an embodiment of this application;

[0039] Figure 17 This is a flowchart illustrating a method for manufacturing a display device according to an embodiment of this application. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0041] Figure 1 and Figure 2 This is a partial structural schematic diagram of a display device provided in an embodiment of this application. Figure 3 This 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 this application. Figure 4 This is a schematic planar structure diagram of a display device including a flexible display panel in a second state, according to an embodiment of this application. (Combined with...) Figures 1 to 4 The display device includes a flexible display panel 1 and a support member 2. The support member 2 supports the flexible display panel 1 in switching between a first state and a second state. The display surface of the flexible display panel 1 is planar in the first state and curved in the second state. The support member 2 includes a fixing part 21, a support unit 22, and a telescopic connecting rod 23. The fixing part 21 is fixedly connected to one end of the flexible display panel 1 and to one end of the support unit 22. The support unit 22 is slidably connected to the flexible display panel 1. The telescopic connecting rod 23 is connected to the support unit 22, and its extension direction intersects with a first plane a, which is the plane where the display surface of the flexible display panel 1 is located in the first state. It should be noted that... Figure 1 and Figure 2 Only the fixing part 21 and the support unit 22 in the flexible display panel 1 and the support member 2 are shown; the structure of the telescopic link 23 is not shown.

[0042] Since the extension direction of the telescopic link 23 intersects with the first plane a, and the telescopic link is connected to the support unit 22, the shape of the support unit 22 can change when the telescopic link extends or retracts. Since the fixing part 21 is connected to one end of the support unit 22, and the fixing 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 fixing part 21 to change, thereby causing the position of one end of the flexible display panel 1 connected to the fixing part 21 to change, so that the display surface of the flexible display panel 1 can switch between a plane and a curved surface. When the support member 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 the flexible display panel 1 is subjected to compression or stretching stress in a local area during the switching process between the first state and the second state, this stress can be released in time. It will not be unable to be released in time because the flexible display panel is fixedly connected to the support unit, which is beneficial to extending the service life of the flexible display panel.

[0043] It should be noted that the fixing part 21 and one end of the flexible display panel 1 are fixedly connected at point M. Figure 3 and Figure 4 The M mark in the illustrated embodiment. Exemplarily, the fixing part 21 is fixedly connected to one end of the flexible display panel 1 by adhesive. Optionally, the fixing part 21 is fixed to one end of the flexible display panel 1 by double-sided pressure-sensitive adhesive (PSA) or very high bond (VHB) double-sided adhesive.

[0044] For example, such as Figure 3 and Figure 4 As shown, the display device also includes a housing 3. The housing 3 covers the end of the flexible display panel 1 away from the fixing part 21, and the uncovered part of the display surface of the flexible display panel is the display area AA.

[0045] In summary, the display device provided in this application includes a flexible display panel and a support member. The support member includes a fixing part, 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 part, and the fixing part is fixedly connected to one end of the flexible display panel. Therefore, when the telescopic link extends or retracts, the shape of the support unit can change, which in turn causes the position of the fixing part and the one end of the flexible display panel connected to the fixing part to change, allowing the flexible display panel to switch between a first state and a second state. Because 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 a timely manner, which helps to extend the service life of the flexible display panel.

[0046] For example, such as Figure 3 and Figure 4 As shown, one end of the telescopic link 23 is fixedly connected to the housing 3. Fixing one end of the telescopic link 23 to the housing allows for adjustment of the angle between the telescopic link 23 and the first plane while simultaneously extending or shortening the end of the telescopic link 23 connected to the support unit 22 via a motor drive or other means. This allows for determining the position of the end of the telescopic link 23 connected to the support unit 22. For example, in the first condition, the motor drives the telescopic link 23 to form a first angle with the first plane, giving the telescopic link 23 a first length; in the second condition, the motor drives the telescopic link 23 to form a second angle with the first plane, giving the telescopic link 23 a second length. The positions of the ends of the telescopic link 23 connected to the support unit 22 differ in these two conditions, resulting in different curvatures of the display surface. If one end of the telescopic link is fixed to a movable structure, it may lead to the same position of the end of the telescopic link 23 connected to the support unit 22 under both conditions, resulting in the same curvature of the display surface of the flexible display panel 1 under these two conditions, interfering with motor operation.

[0047] Optionally, the telescopic link 23 includes a connected sleeve and a column. The column is connected to the support unit 22, and the sleeve is connected to the housing 3. The column is located inside the sleeve. The sleeve and the column can also be connected by means of threaded connection or other methods.

[0048] Optionally, the telescopic link 23 may also include a first link and a second link that are rotatably connected. The second link is connected to the support unit 22, and the first link is connected to the housing 3. Under the drive of the motor, the first link and the second link can form different angles, so that the telescopic link 23 can extend and retract, and adjust the angle between the line connecting the telescopic link 23 to the housing and the line connecting the telescopic link 23 to the support unit 22 and the first plane.

[0049] In one possible embodiment, such as Figure 1 As shown, the support unit 22 has a sliding groove 220, and the flexible display panel 1 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. The edge of the back plate 11 is located within the sliding groove 220. During the switching process between the first state and the second state, setting the edge of the back plate 11 within the sliding groove 220 can play a limiting role, preventing the flexible display panel 1 from sliding out and falling off.

[0050] In one possible embodiment, the support unit 22 includes a plurality of track blocks 221 connected in sequence, and a telescopic link 23 is connected to one of the track blocks 221. By providing multiple track blocks 221 in the support unit 22, the shape of the support unit 22 can be made more flexible. Furthermore, the manufacturing process of this support unit, where the telescopic link 23 is connected to one of the track blocks 221, is simpler, allowing the flexible display panel 1 to switch between a first state and a second state using a simpler process. In other possible embodiments, the support unit 22 does not include multiple track blocks 221, but instead includes a support strip whose length direction is parallel to the length direction x of the flexible display panel 1. This support strip has a groove whose length direction is parallel to the length direction x of the flexible display panel 1, and the edge of the back plate 1 is located within the groove.

[0051] For example, such as Figures 1 to 4 As shown, the length direction of the fixing part 21 intersects the length direction x of the flexible display panel 1. The support member 2 includes two support units 22, the length direction of which is the same as the length direction x of the flexible display panel 1. Each support unit 22 is connected to both ends of the fixing part 21. By providing two support units 22 connected to both ends of the fixing part 21, the support member has two opposing sliding grooves 220, and the two opposing edges of the back plate 11 are respectively located within the two sliding grooves 220, making the flexible display panel 1 more stable and preventing it from falling off when switching between the first and second states.

[0052] Figure 5 This is a schematic diagram of the planar structure of another display device provided in an embodiment of this application. For example... Figure 5 As shown, the support member 2 includes multiple telescopic links 23, the number of which is less than the number of track blocks 221. Each telescopic link 23 is connected to one of the track blocks 221. In other possible embodiments, the number of telescopic links 23 is equal to the number of track blocks 221. By providing multiple telescopic links 23, the position of each track block 221 connected to a telescopic link 23 can be independently controlled by controlling the extension degree of each telescopic link 23 and the angle between the telescopic link and the first plane, thereby enabling more precise control of the shape of the support unit 22.

[0053] In one possible embodiment, the plurality of track blocks 221 include a first track block 2211 and at least one second track block 2212 connected in sequence, wherein the first track block 2211 is located on the side of the at least one second track block 2212 away from the fixing part 21.

[0054] The connection method between the first track block and the second track block is explained below.

[0055] For example, the first track block 2211 has a first connecting portion, and the second track block 2212 has a second connecting portion. One of the first connecting portion and the second connecting portion is a first strip groove a, and the other is a first strip post b. The first strip post b is located within the first strip groove a. The length direction of the first strip groove a, the length direction of the first strip post b, and the length direction of the support unit 22 are all the same, that is, the length direction of the first strip groove a, the length direction of the first strip post b, and the length direction x of the flexible display panel 1 are all the same. The track block 221 with the first strip groove a further includes a first driving structure c, which is connected to the first strip post b. The first driving structure c is used to drive the first strip post b and the first strip groove a to move relative to each other in a direction parallel to the length direction x of the flexible display panel.

[0056] For example Figure 3 and Figure 4As shown, the multiple track blocks 221 include 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 groove a, and the first track block 2211 also includes a first driving structure c. The second connecting part of the second track block 2212 is a first strip column b. By setting the first strip groove a, the second strip 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 first strip column b and the first strip groove a to move relative to each other in a direction parallel to the length direction x of the flexible display panel. This allows the length of the support unit 22 to be extended or shortened in the length direction x of the flexible display panel, thereby increasing or decreasing the area of ​​the display area AA of the display surface of the flexible display panel 1. With the extension and retraction of the telescopic link 23, the display surface of the flexible display panel 1 can be switched between a plane and a curved surface, while the display area AA is expanded or reduced.

[0057] In other possible embodiments, the first connecting portion of the first track block 2211 is a first strip post b, the second connecting portion of the second track block 2212 is a first strip groove a, and the second track block 2212 further includes a first driving structure c.

[0058] In other possible embodiments, more second track blocks 2212 can be designed according to user requirements regarding the length of the flexible display panel 1 or the curvature of the surface formed by the flexible display panel 1 when the length of the telescopic link 23 remains constant. Each second track block 2212 may include a first strip post b and a second strip groove d, and the first strip post b and the second strip groove d are matched so that adjacent two second track blocks 2212 are connected by the first strip post b and the second strip groove d. In addition, the second track block 2212 with the second strip groove d also has a second driving structure f, which is used to drive adjacent two second track blocks 2212 to move relative to each other in a direction parallel to the length direction x of the flexible display panel.

[0059] Figure 6 This is a schematic diagram of the planar structure of another display device provided in this application embodiment. Figure 4 Compared to the embodiments shown, Figure 6 In the embodiment shown, the display surface of the flexible display panel 1 is curved. Along the length x-direction of the flexible display panel, Figure 6 The size ratio of the display area AA in the illustrated embodiment Figure 4 In the illustrated embodiment, the size of the display area AA is large, that is... Figure 6 The area ratio of display region AA in the illustrated embodiment Figure 4 The display area AA in the illustrated embodiment has a large area.

[0060] For example, the plurality of telescopic links 23 include one telescopic link connected to the first track block 2211. Since the first drive structure 2211 is located on the side of the second drive structure 2212 away from the fixed part 21, and the relative position between the first drive structure 2211 and the second drive structure 2212 can be controlled by the first drive structure c, therefore... Figure 3 , Figure 4 or Figure 6 As shown, if the support member 2 includes a telescopic link 23, then the telescopic link 23 is connected to the first track block 2211; or, as... Figure 5 As shown, if the support member 2 includes multiple telescopic links 23, then at least one telescopic link 23 is connected to a first track block 2211. The power to change the position of the first track block 2211 and other structures located away from the fixed part 21 (e.g., other track blocks 221 besides the first track block 2211 and the second track block 2212) is provided by the telescopic link 23, while the power to change the position of the second track block 2212 located on the side of the first track block 2211 closer to the fixed part 21 is provided by the first drive structure c.

[0061] In one possible embodiment, the first strip groove a is projected onto the second plane as an arc protruding away from the flexible display panel 1, and the first strip column b is also projected onto the second plane as an arc protruding away from the flexible display panel 1. The second plane is perpendicular to the first plane and parallel to the length direction x of the flexible display panel 1. By setting the shapes of the first strip groove a and the first strip column b to arc, under the drive of the first driving structure c, the connected first track block 2211 and second track block 2212 can be moved away from each other to increase the area of ​​the display area AA. At the same time, the display surface above the first track block 2211 and second track block 2212 can have a curved arc. Thus, even if the telescopic link 23 does not extend or shorten, only the first track block 2211 and second track block 2212 are moved 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 degree of curvature, can be achieved.

[0062] In another possible embodiment, the first strip groove a is straight in shape, and the first strip pillar b is straight in shape. The straight first strip groove a and the first strip pillar b work together to increase or decrease the area of ​​the display area AA.

[0063] Figure 7 These are a three-dimensional structural diagram and a planar structural diagram of a first track block provided in an embodiment of this application, shown from multiple angles. Figure 7 As shown, the first track block 2211 has a first strip groove a and a first drive structure c, and the surface of the first drive structure c has a gear tooth structure (not shown in the figure). Figure 8 These are three-dimensional structural diagrams and planar structural diagrams of a second track block provided in embodiments of this application, shown from multiple angles. Figure 8 As shown, the second track block 2212 has a first strip post b, and the surface of the first strip post a has a wheel structure that matches the sawtooth structure. The first drive structure c drives the matching wheel structure by rotating the wheel tooth structure on the surface, thereby driving the first strip post b and the first strip groove a to move away from or closer to each other in the length direction x of the flexible display panel 1. Exemplarily, the first drive structure is a motor drive structure.

[0064] The connection method between the second track block and the fixing part is explained below.

[0065] In one possible embodiment, the fixing part 21 is connected to the second track block 2212, and the second track block 2212 connected to the fixing part 21 also has a third connecting part, while the fixing part 21 has a fourth connecting part. One of the third connecting part and the fourth connecting part is a second strip groove d, and the other is a second strip column e. The second strip column e is located within the second strip groove d. The length direction of the second strip groove d, the length direction of the second strip column, and the length direction of the support unit are the same, that is, the length direction of the second strip groove d, the length direction of the second strip column e, and the length direction x of the flexible display panel 1 are all the same. The fixing part 21 or the second track block 2212 with the second strip groove d also includes a second driving structure f. The second driving structure f is connected to the second strip column d and is used to drive the second strip column e to move relative to the flexible display panel along a direction parallel to the length direction x of the flexible display panel.

[0066] For example Figure 3 , Figure 4 and Figure 6 As shown, the fourth connecting part of the fixing part 21 is the second strip-shaped column e, and the third connecting part of the second track block 2212 connected to the fixing part 21 is the second strip-shaped groove d. The second track block 2212 also includes a 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 fixing part 21, the second driving structure f drives the second strip-shaped column e and the second strip-shaped groove d to move relative to each other in a direction parallel to the length direction x of the flexible display panel. This allows the length of the support unit 22 to be extended or shortened in the length direction x of the flexible display panel, thereby increasing or decreasing the area of ​​the display area AA of the display surface of the flexible display panel 1. With the extension and retraction of the telescopic link 23, the display surface of the flexible display panel 1 can be switched between a flat surface and a curved surface, while simultaneously expanding or shrinking the display area AA.

[0067] In other possible embodiments, the third connecting portion of the second track block 2212 connected to the fixing portion 21 is a second strip post e, the fourth connecting portion of the fixing portion 21 is a second strip groove d, and the fixing portion 21 also includes a second driving structure f.

[0068] In one possible embodiment, the second strip groove d is projected onto the second plane as an arc protruding in a direction away from the flexible display panel 1, and the second strip column e is also projected onto the second plane as an arc protruding in a direction away from the flexible display panel 1. By setting the shapes of the second strip groove d and the second strip column e to arc, under the drive of the second drive structure f, the connected fixing part 21 and the second track block 2212 can be moved relatively away to increase the area of ​​the display area AA. At the same time, the display surface above the second track block 2212 connected to the fixing part 21 can have a curved arc. Thus, even if the telescopic link 23 does not extend or shorten, and only the fixing part 21 and the second track block 2212 are moved relatively away, 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 degree of curvature, can be achieved.

[0069] In another possible embodiment, the second strip groove d is straight in shape, and the second strip column e is straight in shape. The straight second strip groove d and the second strip column e work together to increase the area of ​​the display area AA.

[0070] like Figure 8 As shown, the second track block 2212 connected to the fixing part 21 also has a second strip groove d and a second drive structure f, the surface of the second drive structure f having a gear tooth structure (not shown in the figure). Figure 9 These are three-dimensional structural diagrams and planar structural diagrams of a fixing part provided in embodiments of this application. For example... Figure 9 As shown, the fixing part 21 has a second strip-shaped post e, and the surface of the second strip-shaped post e has a wheel structure that matches the sawtooth structure. The second driving structure f drives the matching wheel structure by rotating the wheel tooth structure on the surface, thereby driving the second strip-shaped post e and the second strip-shaped groove d to move away from or closer to each other in the longitudinal direction x of the flexible display panel 1. Exemplarily, the second driving structure is a motor driving structure.

[0071] The other structures in the support unit 22 located on the side of the first track block 2211 away from the fixing part 21 will be described below.

[0072] In one possible embodiment, such as Figure 3 and Figure 4As shown, the multiple track blocks 221 also include multiple third track blocks 2213 rotatably connected in sequence. The multiple third track blocks 2213 are located on the side of the first track block 2211 away from the fixing part 32, and one of the multiple third track blocks 2213 is rotatably connected to the first track block 2211. By setting multiple third track blocks 2213, when the telescopic link 23 drives the first track block 2211 to move, the side of the multiple third track blocks 2213 near the flexible display panel 1 can naturally form an arc or return to a flat surface under the action of the first track block 2211, thereby allowing the display surface above the multiple third track blocks 2213 to switch between a flat surface and a curved surface.

[0073] Figure 10 This application provides a three-dimensional structural diagram of a third track block and planar structural diagrams from multiple angles. (Combined with...) Figure 2 and Figure 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 farther from the first track block 2211 has a connecting shaft h, and the third track block 2213 closer to the first track block 2211 has a connecting hole g. The connecting shaft h matches the connecting hole g, and the connecting shaft is located within the connecting hole g. Alternatively, for two adjacent third track blocks 2213, the third track block 2213 farther from the first track block 2211 may have a connecting hole g, and the third track block 2213 closer to the first track block 2211 may have a connecting shaft h.

[0074] For example, 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 is smaller than the size of the third track block 2213, so as to avoid damage to the flexible display panel 1.

[0075] For example, the first track block 2211 and the third track block 2213 connected to the first track block 2211 are also connected via a hole-shaft structure. Figure 2 , Figure 7 and Figure 10 As shown, the first track block 2211 has a connecting hole g, and the third track block 2213 connected to the first track block 2211 has a connecting shaft h.

[0076] exist Figures 1 to 10 In the embodiment shown, the support unit 22 includes only three third track blocks 2213. In other possible embodiments, more second track blocks 2212 can be designed according to the user's requirements for the length of the flexible display panel 1. Figure 11 This is a schematic diagram of a planar structure of a display device including a flexible display panel in a first state, as provided in an embodiment of this application. Figure 12This is a schematic diagram of a planar structure of a display device including a flexible display panel in a second state, as provided in an embodiment of this application. Figure 11 and Figure 12 As shown, the support unit 22 may also include 6 third track blocks 2213.

[0077] exist Figures 1 to 12 In the illustrated embodiment, the support unit 22 further includes a carrier portion 222, which is connected to the third track block 2213 furthest from the fixing portion 21. In the direction parallel to the length x of the flexible display panel 1, the size of the carrier portion 222 is larger than the size of the track block 221, and the size of the carrier portion 222 affects the area of ​​the display surface of the flexible display panel 1 where a curved surface can be formed. Optionally, the fourth track block 222 is connected to the third track block 2213 via a hole-shaft structure.

[0078] The position of the slide 220 is illustrated below.

[0079] In one possible embodiment, combined with Figure 2 and Figure 7 The orthographic projection of the slide groove 220 on the second plane at least partially coincides with the orthographic projection of the connecting hole g of the first track block 2211 on the second plane; combined Figure 2 and Figure 10 The orthographic projection of the slide groove 220 on the second plane at least partially coincides with the orthographic projection of the connecting hole g of the third track block 2213 on the second plane, and the orthographic projection of the slide groove 220 on the second plane at least partially coincides with the orthographic projection of the connecting shaft h of the third track block 2213 on the second plane.

[0080] In other possible embodiments, the orthographic projection of the groove 220 on the second plane may also be located on the side of the orthographic projection of the connecting hole g of the first track block 2211 on the second plane near the cover plate 11. Simultaneously, the orthographic projection of the groove 220 on the second plane may be located on the side of the orthographic projection of the connecting hole g of the third track block 2213 on the second plane near the cover plate 11, and the orthographic projection of the groove 220 on the second plane may be located on the side of the orthographic projection of the connecting shaft h of the third track block 2213 on the second plane near the cover plate 11. In this embodiment, the dimensions 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, in the direction parallel to the first plane and perpendicular to the length direction x of the flexible display panel 1, do not affect the flexible display panel 1.

[0081] The display device shown in this application embodiment can be an in-vehicle display device, convenient for drivers to use. When not in use, the display device can be set to a first state, i.e., the display surface is flat, to give more space inside the vehicle; while driving, the driver can adjust the display device to curve towards the driver according to their height and driving habits, so that the driver has a wider viewing angle and a more comfortable visual experience. In contrast, if a curved display device is directly installed in the vehicle, it will occupy a large amount of interior space and result in a poor user experience.

[0082] Figure 13 This is a schematic diagram of a display device provided in an embodiment of this application, showing the driver viewing a display in a first state and a second state respectively. Figure 13 As shown, assuming the display area AA has the same dimension along the length x of the flexible display panel 1, when the display surface is curved, the angle formed between the driver's line of sight and the display surface is minimum α; when the display surface is flat, the angle is minimum β, where α > β. In this application scenario, since the driver can only be located on one side of the display device, the display surface only needs to be bent towards the driver.

[0083] For example, the display area of ​​the vehicle display device includes two parts: the instrument panel area and the center console area. The center console area is located on the side of the instrument panel area closer to the fixing part 21. For example, when driving, with the cooperation of the telescopic link 23, the support unit 22 and the fixing part 21, the center console area can be set to bend towards the driver into an arc shape. It can also make the flexible display panel slide, pulling out the part of the flexible display panel 1 that is covered by the housing 3, increasing the area of ​​the display area AA. In this process, the flexible display panel extends forward like a runway. The dynamically variable curvature and the adjustment of the area of ​​the display area can give the vehicle a stronger sense of technology and dynamic aesthetics, giving people a shocking visual impact.

[0084] In one possible embodiment, combined with Figure 7 , Figure 8 and Figure 10 At least some of the multiple track blocks 221 have a first cross-section and a second cross-section, with the first cross-section located on the side of the second cross-section away from the display surface of the flexible display panel 1. In the longitudinal direction x of the flexible display panel 1, the dimension k of the second cross-section is less than or equal to the dimension j of the first cross-section. When only the display surface needs to be bent from a plane in one direction to form a curved surface, k can be set to be less than or equal to j to prevent the display surface from bending in the opposite direction. For Figure 7 , Figure 8 or Figure 10In the track block, when both the first and second cross sections are located in the upper half of the track block, or when 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, the dimension k of the second cross section is smaller than the dimension j of the first cross section along the length x of the flexible display panel 1; when both the first and second cross sections are located in the lower half of the track block, the dimension k of the second cross section is equal to the dimension j of the first cross section. Here, the upper half refers to the side of the track block located in the slide groove 220 near the cover plate 11, and the lower half refers to the side of the track block located in the slide groove 220 away from the cover plate 11.

[0085] It should be noted that, for the first track block 2211, in Figure 7 In the illustrated embodiment, the main body of the first track block 2211 refers to the portion other than the connecting hole g; for the second track block 2212, in Figure 8 In the illustrated embodiment, the second track block 2212 refers to the portion other than the strip column b; for the third track block 2213, in Figure 10 In the embodiment shown, the third track block refers to all parts other than the connecting hole g and the connecting shaft h.

[0086] It should be noted that the shape of each third track block 2213 can be different, for example in Figure 3 or Figure 4 In the embodiment shown, the upper half of the third track block 2213 that is furthest from the fixing part 21 has a different shape than the upper half of the other third track blocks 2213.

[0087] In other possible embodiments, the display device may also be a product such as a billboard, and viewers may be located in multiple positions relative to the display device. Therefore, the flexible display panel may have two bending directions to facilitate viewing by viewers in different positions. In this application scenario, in the length direction x of the flexible display panel 1, the dimension k of the second cross-section may not be less than or equal to the dimension j of the first cross-section. Instead, in the length direction x of the flexible display panel 1, the dimension of the upper half of the track block is smaller than the dimension of the track block where the groove 220 is set, and the dimension of the lower half of the track block is smaller than the dimension of the track block where the groove 220 is set, so as to facilitate bidirectional bending of the display surface. Here, the meanings of the upper half and the lower half of the track block have been explained above and will not be repeated here.

[0088] The structure of a flexible display panel is illustrated below.

[0089] Figure 14 and Figure 15 This is a schematic diagram of the planar structure of a flexible display panel provided in an embodiment of this application from two different viewing angles. Combined with... Figure 1 , Figure 2 , Figure 14 and Figure 15 As shown, 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 two opposite edges of the back plate 11 are respectively located in the grooves 220 of the two support units 22.

[0090] like Figure 14 and Figure 15 As shown, 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, etc., and is not specifically limited in this embodiment.

[0091] Exemplarily, the flexible display panel 1 also includes an encapsulation circuit board 14 connected to the display screen 131. Optionally, as Figure 14 As shown, the encapsulation circuit board 14 can be a chip-on-film (COF) circuit board, which includes a film circuit board body, i.e., a COF film, and a driver chip 15 is mounted on the film circuit board. In other possible embodiments, the encapsulation circuit board 14 can also be a chip-on-glass (COG) circuit board or a chip-on-pi (COP) flexible material circuit board. Exemplarily, the end of the encapsulation circuit board 14 away from the display screen 131 is fixed to the back of the display screen 130 by a first adhesive layer 140.

[0092] For example, such as Figure 14 As shown, the flexible display panel also includes a motherboard 16, which is connected to the encapsulation circuit board 14. The motherboard 16 controls the display screen 131 to display images by controlling the driver chip 15 on the encapsulation circuit board 14. Exemplarily, the motherboard 16 is fixed to the back of the display screen 131 by a second adhesive layer 160.

[0093] For example, such as Figure 14As shown, the display structure 13 also includes a polarizer 132, which is located on the side of the display screen 131 near the cover plate 12, i.e., the polarizer 132 is located on the light-emitting surface of the display screen 131. The display structure also includes a connecting layer 133, which can be made of optically clear adhesive (OCA), such as liquid optical clear adhesive (LOCA) or thermosetting optical clear hot melt adhesive (TOCA). The connecting layer 133 can also be made of other materials with adhesive properties, such as UV-curable adhesive.

[0094] For example, such as Figure 14 As shown, the display structure 13 also includes a support piece 134, which is located on the side of the display screen 131 away from the cover plate 12, that is, the support piece 134 is located on the back of the display screen 131 to support the display screen 131.

[0095] For example, such as Figure 14 As shown, the display structure also includes 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, both the first adhesive layer 135 and the second adhesive layer 136 are PSA layers.

[0096] Figure 16 This is a schematic diagram of the planar structure of a backplate provided in an embodiment of this application. For example... Figure 16 As shown, the back panel 11 has a first region 111, a second region 112, and a third region 113 connected sequentially along the longitudinal direction x of the flexible display panel, with the third region 113 located near the fixing part 21. It should be noted that... Figure 16 In the figure, reference numeral 220 is used to indicate the portion of the flexible display panel 1 located within the groove 220 of the support unit 22 in the length direction x perpendicular to the flexible display panel.

[0097] like Figure 16 As shown, the second region 112 has multiple first hollow structures 1120, which are strip-shaped and extend in a direction intersecting the length direction x of the flexible display panel; the third region 113 has multiple second hollow structures 1130, which are strip-shaped and extend in the same direction as the length direction x of the flexible display panel. Since the third region needs to be both bendable and able to move the entire flexible display panel 1, therefore... Figure 16The design shown allows the third region 113 connected to the fixing part 21 to 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 also allows the third region 113 to have 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).

[0098] Figure 17 This is a schematic flowchart illustrating a method for manufacturing a display device according to an embodiment of this application, as shown below. Figure 17 As shown, the method includes:

[0099] Step 1701: Provide a support and a flexible display panel.

[0100] Step 1702: Connect the support and the flexible display panel.

[0101] The support component includes a fixing part, a support unit, and a telescopic link. The fixing part is connected to one end of the support unit and is fixedly connected to one end of the flexible display panel. The support unit is slidably connected to the flexible display panel. The support component is used to support the flexible display panel in switching between a first state and a second state. The display surface of the flexible display panel is a plane in the first state and 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 the first plane, which is the plane where the display surface of the flexible display panel is located in the first state.

[0102] In summary, the manufacturing method of the display device provided in this application produces a display device including a flexible display panel and a support member. The support member includes a fixing part, a support unit, and a telescopic link. The extension direction of the telescopic link intersects with a first plane. The telescopic link is connected to the support unit, one end of the support unit is connected to the fixing part, and the fixing part is fixedly connected to one end of the flexible display panel. Therefore, when the telescopic link extends or retracts, the shape of the support unit changes, which in turn causes the positions of the fixing part and the one end of the flexible display panel connected to the fixing part to change, allowing the flexible display panel to switch between a first state and a second state. Because 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 a timely manner, which helps to extend the service life of the flexible display panel.

[0103] It should be noted that the terminology used in the implementation section of the embodiments of this application is only for explaining the embodiments of this application and is not intended to limit the embodiments of this application. Unless otherwise defined, the technical or scientific terms used in the implementation of the embodiments of this application should have the ordinary meaning understood by a person skilled in the art to which the embodiments of this application pertain. The words "first," "second," "third," and similar terms used in the patent application specification and claims of the embodiments of this application do not indicate any order, quantity, or importance, but are only used to distinguish different components. Similarly, the words "a" or "an" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The words "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects. The directional terms mentioned in the embodiments of this application, such as "top", "bottom", "up", "down", "left" or "right", are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0104] The above are merely optional embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A display device, characterized in that, The display device includes a flexible display panel and a support member. 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 a curved surface in the second state. The support component includes a fixing part, a support unit, and a telescopic connecting rod. The fixing part is fixedly connected to one end of the flexible display panel, and the length direction of the fixing part intersects with the length direction of the flexible display panel. The fixing part is connected to one end of the support unit, and the length direction of the support unit is the same as the length direction of the flexible display panel. The support unit is slidably connected to the flexible display panel. The telescopic link is connected to the support unit, and the extension direction of the telescopic link intersects with the first plane, which is the plane where the display surface of the flexible display panel is located in the first state; The support unit includes a plurality of track blocks connected in sequence. 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 the side of the at least one second track block away from the fixing 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 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, and the length directions of the first strip groove, the first strip column and the support unit are all the same. The track block having the first strip groove also includes a first driving structure, which is connected to the first strip column. The first driving structure 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.

2. The display device according to claim 1, characterized in that, The support 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, with the edge of the back plate located within the sliding groove.

3. The display device according to claim 2, characterized in that, The telescopic link is connected to one of the plurality of track blocks.

4. The display device according to claim 3, characterized in that, The support includes multiple telescopic links, the number of which is less than or equal to the number of multiple track blocks, and each of the telescopic links is connected to the multiple track blocks respectively.

5. The display device according to claim 3 or 4, characterized in that, The support includes two support units, each of which is connected to both ends of the fixing part.

6. The display device according to claim 5, characterized in that, The plurality of telescopic links includes one of the telescopic links connected to the first track block.

7. The display device according to claim 1 or 6, characterized in that, The first strip groove is straight in shape, and the first strip column is straight in shape; or... The first strip groove is projected onto the second plane as an arc protruding away from the flexible display panel, and the first strip column is projected onto the second plane as an arc protruding 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.

8. The display device according to claim 1 or 6, characterized in that, The surface of the first drive structure has a toothed structure, and the surface of the first strip column has a wheel-strip structure that matches the toothed structure.

9. The display device according to claim 1 or 6, characterized in that, The plurality of track blocks further includes a plurality of third track blocks that are rotatably connected in sequence. The plurality of third track blocks are located on the side of the first track block away from the fixed part, and one of the plurality of third track blocks is rotatably connected to the first track block.

10. The display device according to claim 1 or 6, characterized in that, The fixing part is connected to the second track block, and the second track block connected to the fixing part also has a third connecting part, and the fixing part has a fourth connecting part; One of the third connecting part and the fourth connecting part 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 support unit are the same. The fixing part or the second track block having the second strip groove further includes a second driving structure, which is connected to the second strip column. 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.

11. The display device according to claim 10, characterized in that, The second strip groove is straight in shape, and the second strip column is straight in shape; or, The second strip groove is projected onto the second plane as an arc protruding away from the flexible display panel, and the second strip column is projected onto the second plane as an arc protruding away from the flexible display panel. The second plane is perpendicular to the first plane and parallel to the length direction of the flexible display panel.

12. The display device according to any one of claims 1, 3, 4, 6, and 11, characterized in that, At least a portion of the track blocks have a first cross section and a second cross section in their main body portion, the first cross section being located on the side of the second cross section away from the display surface of the flexible display panel; Along the length 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.

13. The display device according to any one of claims 1 to 4, 6 and 11, characterized in that, The display device also includes a housing, and one end of the telescopic link is fixedly connected to the housing.

14. The display device according to any one of claims 1 to 4, 6 and 11, characterized in that, 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 back plate has a first region, a second region, and a third region that are sequentially connected in the length direction of the flexible display panel, and the third region is close to the fixing part. The second region has multiple first hollow structures, which are strip-shaped and extend in a direction that intersects the length direction of the flexible display panel; The third region has multiple second hollow structures, which are strip-shaped and extend in the same direction as the length of the flexible display panel.

15. A method for manufacturing a display device, characterized in that, The method includes: Provide support components and flexible display panels; Connect the support member and the flexible display panel; The support member includes a fixing part, a support unit, and a telescopic link. The fixing part is connected to one end of the support unit, and the length direction of the support unit is the same as the length direction of the flexible display panel. The fixing part is fixedly connected to one end of the flexible display panel, and the length direction of the fixing part intersects with the length direction of the flexible display panel. The support 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 planar in the first state and curved 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, which is the plane where the display surface of the flexible display panel is located in the first state. The support unit includes, in sequence... The system comprises multiple interconnected track blocks, including a first track block and at least one second track block connected sequentially. The first track block is located on the side of the at least one second track block away from the fixing 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 groove, and the other is a first strip column. The first strip column is located within the first strip groove, and the length direction of the first strip groove, the length direction of the first strip column, and the length direction of the support unit are all the same. The track block with the first strip groove further includes a first driving structure connected to the first strip column. The first driving structure 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.

Images