Display device

Abstract

The present application provides a display device, including a flexible display panel and a panel support device, wherein the display panel is configured to be able to curl or stretch along a first direction, and the panel support device includes an elastic member, an elastic member and a guide assembly, wherein the elastic member includes a plurality of strip-shaped protrusions and strip-shaped grooves alternately arranged along the first direction, wherein the protrusions are fixed to the back of the display panel, and the grooves and the back of the display panel form a strip-shaped cavity; the width of the grooves in a natural state gradually decreases in a direction approaching the display panel; movable members are movably arranged in the cavity of the grooves in a one-to-one correspondence, and the guide assembly is configured to move relative to the elastic member along the first direction and change the position of the movable members in the cavity, so that the display panel stretches or curls. The panel support device of the present application utilizes the elastic deformation of the elastic member itself to drive the flexible display panel to achieve stretching or curling, and has a simple structure, a low difficulty in processing technology, is not easy to be damaged, and has a high mechanical reliability.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular, to a display device. Background Art

[0002] At present, flexible display panels usually use hinges or rigid rotating shafts to achieve the folding or curling of the panel. However, this structure has certain defects. On the one hand, the preparation technology of hinges or rigid rotating shafts is difficult, resulting in a high cost for the entire display device. On the other hand, foreign matter entering the mechanical hinge can easily cause the hinge to break, and the product falling can easily cause the hinge to break, so the overall mechanical reliability is insufficient.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the invention

[0004] The purpose of the present application is to provide a display device to solve one or more problems existing in the prior art.

[0005] According to one aspect of the present application, a display device is provided, including a flexible display panel and a panel supporting device, wherein the display panel is configured to be curled or stretched along a first direction, and the panel supporting device includes:

[0006] an elastic member, the elastic member comprising a plurality of protrusions and a plurality of grooves alternately arranged along the first direction, the protrusions and the grooves both extending along a second direction to form a through strip, the second direction being perpendicular to the first direction; the protrusions are fixed to the back of the display panel, the grooves and the back of the display panel form a strip-shaped cavity; the width of the grooves in a natural state gradually decreases in a direction close to the display panel;

[0007] A plurality of movable members, the movable members extending in the second direction in a strip shape, the plurality of movable members corresponding to each other and movably arranged in the cavities of the plurality of grooves, the length of the movable member in the second direction being greater than the length of the elastic member in the second direction, the width of the movable member in the first direction being greater than the minimum width of the groove in a natural state, and less than or equal to the maximum width of the groove in a natural state;

[0008] A guide component, wherein the guide component is configured to move along the first direction relative to the elastic member and contact with at least one of the movable members to move the movable member from a side of the cavity away from the display panel to a side close to the display panel, so that the movable member stretches the two side walls of the groove portion close to the display panel and makes the display panel stretched; or, the movable member is moved from a side of the cavity close to the display panel to a side away from the display panel, so that the two side walls of the groove portion close to the display panel naturally shrink and the display panel is curled.

[0009] In an exemplary embodiment of the present application, the guide assembly includes a first guide block and a second guide block, the first guide block and the second guide block are located at one end of the movable member extending beyond the elastic member; the first guide block includes a first arcuate guide surface, the opening of the first arcuate guide surface faces the side away from the display panel, and when the first guide block moves along the first direction, the first arcuate guide surface can contact a side of the movable member away from the display panel, so as to move the movable member from the side of the cavity away from the display panel to the side close to the display panel, so that the movable member opens two side walls of the groove portion close to the display panel;

[0010] The second guide block includes a second arc-shaped guide surface, and the opening of the second arc-shaped guide surface faces the side close to the display panel. When the second guide block moves along the first direction, the second arc-shaped guide surface can contact the side of the movable part close to the display panel to move the movable part from the side close to the display panel in the cavity to the side away from the display panel, so that the side of the groove part close to the display panel naturally shrinks.

[0011] In an exemplary embodiment of the present application, the first guide block and the second guide block are both semi-cylindrical.

[0012] In an exemplary embodiment of the present application, the first guide block and the second guide block in the guide assembly are located on the same side of the elastic member.

[0013] In an exemplary embodiment of the present application, a first limiting structure and a second limiting structure are provided on the inner wall of the groove portion of the elastic member, the first limiting structure is located on a side close to the display panel, and the second limiting structure is located on a side away from the display panel; the first limiting structure is configured to limit the movable member on a side close to the display panel in the cavity, so that the movable member stretches the two side walls of the groove portion close to the display panel; the second limiting structure is configured to limit the movable member on a side close to the display panel in the cavity, so that the two side walls of the groove portion close to the display panel naturally shrink.

[0014] In an exemplary embodiment of the present application, the first limiting structure includes two first card slots, which are respectively arranged at corresponding positions of two side walls of the groove portion close to the display panel, and two opposite edges of the movable member can be stuck in the two first card slots;

[0015] The second limiting structure includes two second card slots, which are respectively arranged at corresponding positions of two side walls of the groove portion away from the display panel, and two opposite edges of the movable member can be stuck in the two second card slots.

[0016] In an exemplary embodiment of the present application, the point at which the first arcuate guide surface is closest to the display panel is in the same straight line as the two first card slots, and the point at which the second arcuate guide surface is farthest from the display panel is in the same straight line as the two second card slots.

[0017] In an exemplary embodiment of the present application, in the guide assembly, the distance between the first guide block and the second guide block is less than or equal to the width of the movable member.

[0018] In an exemplary embodiment of the present application, both ends of the movable part extend to the outside of the elastic part, and there are two groups of guide components. The two groups of guide components are respectively located at both ends of the movable part extending outside the elastic part, and the first guide blocks in the two groups of guide components correspond to the same movable part, and can simultaneously move the movable part from the side of the cavity away from the display panel to the side close to the display panel; the second guide blocks in the two groups of guide components correspond to the same movable part, and can simultaneously move the movable part from the side of the cavity close to the display panel to the side away from the display panel.

[0019] In an exemplary embodiment of the present application, the length of the elastic member along the second direction is less than the length of the display panel along the second direction, and the length of the movable member along the second direction is less than or equal to the length of the display panel along the second direction.

[0020] In an exemplary embodiment of the present application, the display device also includes a shell, the flexible display panel and the panel supporting device are both arranged in the shell, the panel supporting device is fixed to the shell, and the flexible display panel is configured to be movable along the first direction so that the first guide block moves the movable part from a side of the cavity away from the display panel to a side close to the display panel, or the second guide block moves the movable part from a side of the cavity close to the display panel to a side away from the display panel.

[0021] In an exemplary embodiment of the present application, the display device also includes a shell, and the flexible display panel and the panel support device are both arranged in the shell; the guide assembly also includes a connecting member, which connects the first guide block and the second guide block, and the connecting member can be movably arranged on the shell along the first direction; the connecting member moves along the first direction so that the first guide block moves the movable member from a side of the cavity away from the display panel to a side close to the display panel, or the second guide block moves the movable member from a side of the cavity close to the display panel to a side away from the display panel.

[0022] In an exemplary embodiment of the present application, a strip-shaped hole extending along a first direction is provided on the housing, and the connecting member passes through the strip-shaped hole and can move along the strip-shaped hole.

[0023] In an exemplary embodiment of the present application, the elastic member is made of steel, copper, beryllium bronze, natural rubber or thermoplastic polyurethane elastomer rubber.

[0024] In an exemplary embodiment of the present application, an adhesive layer is provided between the display panel and the raised portion of the elastic member.

[0025] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A schematic diagram of an exploded structure of a display device according to an embodiment of the present application;

[0028] Figure 2 A three-dimensional structural diagram of a display device according to an embodiment of the present application;

[0029] Figure 3 A top view of the structure of a display device according to an embodiment of the present application;

[0030] Figure 4 A schematic cross-sectional structure diagram of an elastic member and a display panel according to an embodiment of the present application;

[0031] Figure 5 is a schematic diagram of a cross-sectional structure of a display panel when it is extended according to an embodiment of the present application;

[0032] Figure 6 A schematic diagram of a cross-sectional structure of a display panel when rolled according to an embodiment of the present application;

[0033] Figure 7 This is a schematic diagram of the working principle of the panel support device according to the embodiment of the present application;

[0034] Figure 8 A top view of a structure with a housing according to an embodiment of the present application;

[0035] Fig. 9 A structural side view of a housing according to an embodiment of the present application;

[0036] Fig.10 Another top view of the structure of the display device according to the embodiment of the present application;

[0037] Fig.11 This is a bottom-up structural diagram of the movable parts and display panel of an implementation scheme of the present application.

[0038] In the figure: 1, flexible display panel; 2, elastic member; 3, movable member; 4, guide assembly; 41, first guide block; 42, second guide block; 411, first arc-shaped guide surface; 421, first arc-shaped guide surface; 21, raised portion; 22, groove portion; 221, first slot; 222, second slot; 5, connecting member; 6, outer shell; 61, strip hole. DETAILED DESCRIPTION

[0039] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0040] In an embodiment of the present application, a display device is provided, referring to Figure 1-Figure 3, comprising a flexible display panel 1 and a panel support device, wherein the flexible display panel 1 is configured to be able to be rolled or stretched along a first direction, and the panel support device is used to assist the display panel 1 in rolling and stretching, and comprises an elastic member 2, a plurality of movable members 3 and a guide assembly. In this embodiment, the x direction as shown in the figure is taken as the first direction.

[0041] The elastic member 2 as a whole looks like a flat plate with serrations. The elastic member 2 includes a plurality of protrusions 21 and a plurality of grooves 22 arranged alternately along a first direction. The protrusions 21 and the grooves 22 extend along a second direction to form a through strip. The second direction is perpendicular to the first direction, that is, the second direction is the y direction shown in the figure. Figure 4 The figure shows a schematic cross-sectional view of the elastic member 2 in the X direction, and the cross-sectional shape thereof is similar to a sawtooth, with the raised portion 21 and the groove portion 22 arranged alternately. The elastic member 2 is located as a whole on the back of the display panel 1, and its raised portion 21 is fixed to the back of the display panel 1, and the groove portion 22 forms a strip-shaped cavity with the back of the display panel 1. The elastic member 2 is made of an elastic material, and in a natural state, the width of its groove portion 22 gradually decreases in the direction close to the display panel 1, that is, the groove portion 22 shown in the figure is wide at the bottom and narrow at the top. Therefore, in the absence of external force, the side of the entire elastic member 2 close to the display panel 1 shrinks relative to the side away from the display panel 1, thereby curling upward. Since the raised portion 21 between each two groove portions 22 is fixed to the back of the display panel 1, the curling of the elastic member 2 will drive the flexible display panel 1 to curl upward, thereby realizing the folding or bending of the display panel 1.

[0042] like Figure 1-3 As shown, the movable member 3 extends in the y direction in a strip shape, and a plurality of movable members 3 are arranged one by one in the cavity of each groove portion 22 and can be movably disposed. The movable member 3 can be specifically a long plate as shown in the figure, with the dimension of the movable member 3 in the x direction as the width and the dimension in the y direction as the length. The length of the movable member 3 in the y direction is greater than the length of the elastic member 2 in the y direction, that is, at least one end of the movable member 3 extends to the outside of the groove portion 22. Figure 5, the width of the movable part 3 in the x direction is greater than the minimum width of the groove portion 22 in the natural state, that is, when all the movable parts 3 are located at the upper part of the cavity, the upper ends of the two side walls of the groove portion 22 can be stretched open, that is, the upper ends of the two side walls of the groove portion 22 are opened by external forces, so that the entire elastic part 2 is stretched on the side close to the display panel 1. It can be understood that the larger the width of the movable part 3, the larger the width of the upper ends of the two side walls of the groove portion 22, and the flatter the display panel 1 stretches. Obviously, when the movable part 3 stretches the upper ends of the two side walls of the groove portion 22 to the same width as the lower end, the entire elastic part 2 is in a flat state, and the display panel 1 is also stretched into a plane. Since the width of the movable part 3 is less than or equal to the maximum width of the lower part of the groove portion 22 in the natural state, when all the movable parts 3 are located at the lower part of the cavity, the upper end of the groove portion 22 is free of the force of the movable part 3, and relies on its own elasticity to recover to the original smaller width, so that the upper part of the entire elastic part 2 shrinks and curls upward, such as Figure 6 As shown, it can be seen that the upper and lower positions of the movable member 3 in the cavity determine the different shapes of the elastic member 2, thereby determining the different shapes of the display panel 1.

[0043] The guide assembly is used to control the movable member 3 to move up and down in the cavity, that is, to move along the z direction, so that the elastic member 2 can drive the flexible display panel 1 to form different shapes. The guide assembly is configured to move along the first direction relative to the elastic member 2 and contact at least one movable member 3 to move the movable member 3 from the side of the cavity away from the display panel 1 to the side close to the display panel 1, that is, from the bottom to the top, so that the movable member 3 opens the upper ends of the two side walls of the groove portion 22 and makes the display panel 1 stretched. The guide assembly is also configured to move along the first direction relative to the elastic member 2 and contact at least one movable member 3 to move the movable member 3 from the side of the cavity close to the display panel 1 to the side away from the display panel 1, so that the side of the groove portion 22 close to the display panel 1 naturally shrinks and makes the display panel 1 curled.

[0044] The panel support device of the present application utilizes the elastic deformation of the elastic member 2 itself to achieve stretching or curling, thereby driving the display panel 1 to stretch or curl. Compared with mechanical structures such as hinges or rigid rotating shafts, its structure is simple and the processing difficulty is relatively low, which reduces the cost of the entire display device. Moreover, since the elastic member 2 is a whole-surface elastic structure, it is not easy to be damaged and has high mechanical reliability. In addition, the guide assembly and the movable member 3 have a simple structure, are easy to match, occupy a small space, and have strong practicality.

[0045] The display device according to the embodiment of the present application is described in detail below:

[0046] In the present application, the elasticity of the elastic member 2 affects its ability to recover from deformation, and thus affects the full and stretched state of the display panel 1. It is understandable that the greater the elasticity of the elastic member 2, the stronger the ability to recover the curled state after the external force is removed, and the greater the bending or folding angle of the display panel 1. Therefore, the elastic member 2 is preferably made of a metal or non-metal material with greater elasticity, such as steel, copper, beryllium bronze, natural rubber, thermoplastic polyurethane elastomer rubber, etc.

[0047] like Figure 4 As shown, it is the cross-sectional shape of the elastic member 2 in the natural state in this embodiment, the raised portion 21 opens downward and the two sides are gradually retracted, the groove portion 22 opens upward and the two sides are gradually retracted, and multiple raised portions 21 and multiple groove portions 22 are combined into a serrated elastic member 2. The parameters such as angles and sizes shown in the figure are only an example. When the parameters change, the cross-sectional shapes of the raised portions 21 and the groove portions 22 can also be other shapes, which will not be repeated here. In this embodiment, the elastic member 2 can be integrally formed by mechanical methods such as stamping. In this embodiment, an adhesive layer (not shown in the figure) can be provided between the raised portion 21 and the flexible display panel 1, and the elastic member 2 and the flexible display panel 1 are bonded together by the adhesive layer, which has little effect on the display effect and bending ability of the display panel 1. Of course, in other embodiments, it can also be fixed by other mechanical methods.

[0048] In the present application, the material of the movable member 3 is preferably a metal, plastic, ceramic, etc. with high rigidity, so that a stable supporting force can be provided to the groove portion 22 of the elastic member 2, so that the groove portion 22 can maintain a stable shape in the unfolded state. Figure 1-2 As shown, in this embodiment, the movable member 3 is a strip-shaped thin plate structure, and its width is greater than the minimum width between the two side walls of the groove portion 22 in the natural state, and is equal to the maximum width between the two side walls. When the movable member 3 is moved to the upper side of the cavity of the groove portion 22 by the guide assembly, the movable member 3 is placed horizontally and the two sides are against the inner wall of the groove portion 22, and the two side walls of the groove portion 22 are stretched to be equal to the maximum width. At this time, the display panel 1 is fully stretched and flat. When the movable member 3 is moved to the lower side of the cavity of the groove portion 22 by the guide assembly, it is exactly located at the widest part of the groove portion 22.

[0049] like Figure 7As shown, the guide assembly includes a first guide block 41 and a second guide block 42, and the first guide block 41 and the second guide block 42 are located at one end of the movable member 3 extending outside the groove portion 22. The first guide block 41 is configured to move along the first direction relative to the elastic member 2 and contact with at least one movable member 3, so as to move the movable member 3 from the side of the cavity away from the display panel 1 to the side close to the display panel 1, that is, from the bottom to the top, so that the movable member 3 opens the upper ends of the two side walls of the groove portion 22 and makes the display panel 1 stretched. The second guide block 42 is configured to move along the first direction relative to the elastic member 2 and contact with at least one movable member 3, so as to move the movable member 3 from the side of the cavity close to the display panel 1 to the side away from the display panel 1, so that the side of the groove portion 22 close to the display panel 1 naturally shrinks and makes the display panel 1 curled. Taking the direction indicated by the arrow in the figure as an example, the first guide block 41 moves to the right along the x direction, and sequentially pushes the movable members 3 originally located below the cavity to the top of the cavity one by one, so that the elastic member 2 originally in a curled shape is stretched flat from left to right, and finally the flexible display panel 1 is unfolded. The second guide block 42 moves to the left along the x direction, and sequentially presses the movable members 3 originally located above the cavity downward to the bottom of the cavity one by one, so that the elastic member 2 originally unfolded gradually shrinks and curls from right to left, and finally the flexible display panel 1 is curled.

[0050] refer to Figure 4-7 In order to stabilize the position of the movable part 3 in the cavity of the groove portion 22, the embodiment of the present application is provided with a first limiting structure and a second limiting structure on the inner wall of the groove portion 22 of the elastic member 2, the first limiting structure is located on the side close to the display panel 1, and the second limiting structure is located on the side away from the display panel 1; the first limiting structure is used to limit the movable part 3 on the side close to the display panel 1 in the cavity, so that the movable part 3 opens the two side walls of the groove portion 22 close to the display panel 1; the second limiting structure is used to limit the movable part 3 on the side away from the display panel 1 in the cavity, so that the two side walls of the groove portion 22 close to the display panel 1 naturally shrink.

[0051] In this embodiment, the first limiting structure includes two first card slots 221, which are respectively arranged at corresponding positions above the two side walls of the groove portion 22, and the two opposite edges of the movable member 3 can be stuck in the two first card slots 221 to stabilize at this position and open the two side walls of the groove portion 22 close to the display panel 1. The second limiting structure includes two second card slots 222, which are respectively arranged at corresponding positions below the two side walls of the groove portion 22, and the two opposite edges of the movable member 3 can be stuck in the two second card slots 222 to stabilize at this position. In the embodiment of the present application, the card slot protruding from the side wall as shown in the figure can be directly stamped outward on the side wall of the groove portion 22.

[0052] In this application, Figure 1, 2 7 is a schematic diagram of an exemplary structure of the first guide block 41, the first guide block 41 includes a first arcuate guide surface 411, the opening of the first arcuate guide surface 411 faces downward, when the first guide block 41 moves from left to right relative to the elastic member 2, the first arcuate guide surface 411 can contact the lower surface of the movable member 3, and can push the movable member 3 located in the second card slot 222 from the bottom of the cavity to the bottom, until the movable member 3 is stuck in the first card slot 221. Therefore, the highest point of the first arcuate guide surface 411, that is, the point closest to the display panel 1, is exactly on the same straight line as the positions of the two first card slots 221.

[0053] The second guide block 42 includes a second arc-shaped guide surface 421, the opening of which faces upward. When the second guide block 42 moves from right to left relative to the elastic member 2, the second arc-shaped guide surface 421 can contact the upper surface of the movable member 3, and can move the movable member 3 located in the first slot 221 from the upper part of the cavity to the lower part, until the movable member 3 is stuck in the second slot 222. Therefore, the lowest point of the second arc-shaped guide surface 421, that is, the point farthest from the display panel 1, is exactly in the same straight line as the positions of the two second slots 222.

[0054] In an exemplary embodiment, Figure 7 As shown, the first guide block 41 and the second guide block 42 are both semi-cylindrical, and the two semi-cylinders are placed in opposite directions, so that the arc surface of one semi-cylinder opens downward, and the arc surface of the other semi-cylinder opens upward. In this embodiment, the first guide block 41 and the second guide block 42 are equal in size, and the arc surface of each guide block only contacts one movable part 3 at a time. In other embodiments, the curvature and the size along the x direction of the first arc-shaped guide surface 411 and the second arc-shaped guide surface 421 can be larger, so that they can contact multiple movable parts 3 at the same time, and the positions of multiple movable parts 3 can be changed simultaneously during the relative movement process.

[0055] In this embodiment, if Figure 7 As shown, the distance between the first guide block 41 and the second guide block 42 in the guide assembly is smaller than the width of the movable member 3, that is, the first guide block 41 and the second guide block 42 can accommodate at most one movable member 3, and when the first guide block 41 and the second guide block 42 move to the leftmost end or the rightmost end relative to the elastic member 2 at the same time, the movable members 3 at both ends can be pushed up or pressed down. If the distance between the first guide block 41 and the second guide block 42 is too large, one of the guide blocks cannot contact the movable member 3 at the edge, and the movable member 3 at the edge cannot be pushed up or pressed down, resulting in the display panel 1 being unable to fully extend or curl.

[0056] exist Figure 1-3In the display device shown, there is only one set of guide components, and the two guide blocks of the set of guide components are located on the same side of the elastic member 2. In order to make the guide component control the moving position of the movable member 3 more stable, in an exemplary embodiment, reference Fig.10 , including two sets of guide components, which are respectively located on both sides of the elastic member 2, that is, both ends of the movable member 3 extend to the outside of the elastic member 2, and a set of guide components are respectively arranged at both ends of the movable member 3, and the two first guide blocks 41 in the two guide components correspond to the same movable member 3, and can simultaneously move the movable member 3 from the bottom of the cavity to the top of the cavity; the two second guide blocks 42 in the two guide components correspond to the same movable member 3, and can simultaneously move the movable member 3 from the top of the cavity to the bottom of the cavity. In this way, both ends of the movable member 3 can be lifted up or pressed down at the same time, ensuring that the entire movable member 3 can smoothly enter the first slot 221 or the second slot 222. It can be understood that if the two guide components need to move synchronously, then the two guide components can be connected and controlled by a connecting shaft, or they can be controlled by manual synchronous operation, which will not be repeated here.

[0057] exist Figure 1-3 In the above-mentioned embodiment, the length of the elastic member 2 along the second direction is equal to the length of the display panel 1 along the second direction. Therefore, the movable member 3 extends out of both ends of the display panel 1, and the guide assembly is also arranged outside the display panel 1, which occupies a large space outside the display panel 1, making it difficult to achieve a narrow frame design. In order to solve this problem, in an exemplary embodiment, the length of the elastic member 2 along the second direction is less than the length of the display panel 1 along the second direction, and the length of the movable member 3 along the second direction is less than or equal to the length of the display panel 1 along the second direction. Fig.11 As shown, under this structure, the guide assembly can be disposed as a whole below the display panel 1, and no longer needs to occupy the outer space of the display panel 1, which is conducive to realizing a narrow frame design. At the same time, although the area of ​​the elastic member 2 becomes smaller, it does not affect its control over the shape of the display panel 1.

[0058] In the present application, the flexible display panel and the guide assembly move relative to each other to achieve stretching or curling. Then, the flexible display panel or the guide assembly may actually move.

[0059] In one embodiment, Figure 8 The display device shown further includes a housing 6, in which the flexible display panel and the panel support device are both disposed; a first guide block 41 and a second guide block 42 are mounted on the housing 6 and are movable along a first direction.

[0060] In order to simplify the operation of the guide block, Figure 8In the embodiment shown, the first guide block 41 and the second guide block 42 are connected together by a connecting member 5. The connecting member 5 can be arranged on the housing 6 and can move along the first direction, so that the two guide blocks can be driven to move by moving the connecting member 5. Figure 8 and Fig. 9 , is an exemplary embodiment of a connecting member 5, a strip hole 61 extending along a first direction is provided on the housing 6, and the connecting member 5 passes through the strip hole 61 and is fixed to two guide blocks. The two guide blocks can be driven to move by moving the connecting member 5 along 61, thereby realizing the stretching or curling of the display panel 1. Since the highest point of the first guide block 41 is not higher than the movable member 3, and the lowest point of the second guide block 42 is not lower than the movable member 3, they will not interfere with each other when moving at the same time, thereby making it possible to conveniently and quickly control the shape of the display panel 1. Of course, in other embodiments, the first guide block 41 and the second guide block 42 can also be controlled separately, which will not be described in detail here.

[0061] In another embodiment, the display device includes a housing, and the flexible display panel and the panel support device are both arranged in the housing; the first guide block 41 and the second guide block 42 are fixedly mounted on the housing. The flexible display panel is configured to be movable along the x direction, that is, movable relative to the guide assembly, so that the first guide block 41 can move the movable part from the bottom of the cavity to the top, or the second guide block 42 can move the movable part from the top of the cavity to the bottom. With this structure, the flexible display panel can be directly pulled to curl or stretch when in use.

[0062] In addition, no matter which of the above structures is used, a cut-off structure can be provided at both ends of the elastic member so that the flexible display panel and the guide block can stop when they move to the ends.

[0063] It should also be noted that the flexible display panel 1 of the present application may be an OLED flexible display panel, or a quantum dot flexible display panel, etc. As long as it is a bendable or foldable flexible display panel, it can be curled or stretched by the above panel support device.

[0064] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of the illustration to another component, these terms are used in this specification only for convenience, such as according to the orientation of the examples described in the drawings. It is understood that if the device of the illustration is turned upside down, the component described as "upper" will become the component "lower". When a structure is "on" other structures, it may mean that the structure is formed integrally on the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.

[0065] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0066] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the appended claims.

Claims

1. A display device, characterized in that: The invention comprises a flexible display panel and a panel supporting device, wherein the display panel is configured to be curled or stretched along a first direction, and the panel supporting device comprises: an elastic member, the elastic member comprising a plurality of protrusions and a plurality of grooves alternately arranged along the first direction, the protrusions and the grooves both extending along a second direction to form a through strip, the second direction being perpendicular to the first direction; the protrusions are fixed to the back of the display panel, the grooves and the back of the display panel form a strip-shaped cavity; the width of the grooves in a natural state gradually decreases in a direction close to the display panel; A plurality of movable members, the movable members extending in the second direction are strip-shaped, the plurality of movable members are corresponding to each other and are movably arranged in the cavities of the plurality of grooves, the length of the movable member in the second direction is greater than the length of the elastic member in the second direction, the width of the movable member in the first direction is greater than the minimum width of the groove in a natural state, and less than or equal to the maximum width of the groove in a natural state; the material of the movable member is metal, plastic or ceramic; A guide component, wherein the guide component is configured to move along the first direction relative to the elastic member and contact with at least one of the movable members to move the movable member from a side of the cavity away from the display panel to a side close to the display panel, so that the movable member stretches the two side walls of the groove portion close to the display panel and makes the display panel stretched; or, the movable member is moved from a side of the cavity close to the display panel to a side away from the display panel, so that the two side walls of the groove portion close to the display panel naturally shrink and the display panel is curled.

2. The display device according to claim 1, characterized in that The guide assembly comprises a first guide block and a second guide block, wherein the first guide block and the second guide block are located at one end of the movable member extending beyond the elastic member; the first guide block comprises a first arc-shaped guide surface, wherein the opening of the first arc-shaped guide surface faces the side away from the display panel, and when the first guide block moves along the first direction, the first arc-shaped guide surface can contact a side of the movable member away from the display panel, so as to move the movable member from the side away from the display panel in the cavity to the side close to the display panel, so that the movable member opens the two side walls of the groove portion close to the display panel; The second guide block includes a second arc-shaped guide surface, and the opening of the second arc-shaped guide surface faces the side close to the display panel. When the second guide block moves along the first direction, the second arc-shaped guide surface can contact the side of the movable part close to the display panel to move the movable part from the side close to the display panel in the cavity to the side away from the display panel, so that the side of the groove part close to the display panel naturally shrinks.

3. The display device according to claim 2, characterized in that: The first guide block and the second guide block are both semi-cylindrical.

4. The display device according to claim 3, characterized in that: The first guide block and the second guide block in the guide assembly are located on the same side of the elastic member.

5. The display device according to claim 2, characterized in that: The inner wall of the groove portion of the elastic member is provided with a first limiting structure and a second limiting structure, the first limiting structure is located on a side close to the display panel, and the second limiting structure is located on a side away from the display panel; the first limiting structure is configured to limit the movable member on a side close to the display panel in the cavity, so that the movable member opens the two side walls of the groove portion close to the display panel; the second limiting structure is configured to limit the movable member on a side away from the display panel in the cavity, so that the two side walls of the groove portion close to the display panel naturally shrink.

6. The display device according to claim 5, characterized in that: The first limiting structure includes two first card slots, which are respectively arranged at corresponding positions of two side walls of the groove portion close to the display panel, and two opposite edges of the movable member can be stuck in the two first card slots; The second limiting structure includes two second card slots, which are respectively arranged at corresponding positions of two side walls of the groove portion away from the display panel, and two opposite edges of the movable member can be stuck in the two second card slots.

7. The display device according to claim 6, characterized in that: The point of the first arc-shaped guide surface closest to the display panel is in the same straight line as the two first slots, and the point of the second arc-shaped guide surface farthest from the display panel is in the same straight line as the two second slots.

8. The display device according to claim 2, characterized in that: In the guide assembly, the distance between the first guide block and the second guide block is less than or equal to the width of the movable member.

9. The display device according to claim 2, characterized in that: Both ends of the movable part extend to the outside of the elastic part. There are two groups of guide components, which are respectively located at both ends of the movable part extending outside the elastic part. The first guide blocks in the two groups of guide components correspond to the same movable part, and can simultaneously move the movable part from a side of the cavity away from the display panel to a side close to the display panel; the second guide blocks in the two groups of guide components correspond to the same movable part, and can simultaneously move the movable part from a side of the cavity close to the display panel to a side away from the display panel.

10. The display device according to claim 2, characterized in that: The length of the elastic member along the second direction is less than the length of the display panel along the second direction, and the length of the movable member along the second direction is less than or equal to the length of the display panel along the second direction.

11. The display device according to claim 2, characterized in that: The display device also includes a shell, the flexible display panel and the panel supporting device are both arranged in the shell, the panel supporting device is fixed to the shell, and the flexible display panel is configured to be movable along the first direction so that the first guide block moves the movable part from a side of the cavity away from the display panel to a side close to the display panel, or the second guide block moves the movable part from a side of the cavity close to the display panel to a side away from the display panel.

12. The display device according to claim 2, characterized in that: The display device also includes a shell, and the flexible display panel and the panel supporting device are both arranged in the shell; the guide assembly also includes a connecting member, which connects the first guide block and the second guide block, and the connecting member can be movably arranged on the shell along the first direction; the connecting member moves along the first direction so that the first guide block moves the movable member from a side of the cavity away from the display panel to a side close to the display panel, or the second guide block moves the movable member from a side of the cavity close to the display panel to a side away from the display panel.

13. The display device according to claim 12, characterized in that: The shell is provided with a strip-shaped hole extending along a first direction, and the connecting member passes through the strip-shaped hole and can move along the strip-shaped hole.

14. The display device according to claim 1, characterized in that The elastic member is made of steel, copper, beryllium bronze, natural rubber or thermoplastic polyurethane elastomer rubber.

15. The display device according to claim 1, characterized in that: An adhesive layer is arranged between the display panel and the raised portion of the elastic member.

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