Curvature deformation display device

Abstract

This invention discloses a curved / straight deformable display device, comprising a flexible screen, a central support assembly, and at least two deformable components. The flexible screen has a first bent position and a second straight position. The central support assembly is located on the back side of the flexible screen and connected to it. The side of the central support assembly facing the flexible screen has several spaced-apart unidirectional damping elements. The deformable components are fixed relative to the back side of the flexible screen along its length. When the flexible screen is in the first position, the deformable components bend with the screen, and each unidirectional damping element presses against its corresponding deformable component to prevent it from springing back. When the flexible screen is in the second position, the deformable components are arranged side-by-side with the screen, and the unidirectional damping elements are spaced apart from them. The flexible screen of this curved / straight deformable display device can freely switch between bent and straight states, meeting user needs and providing a good user experience.

Description

Technical Field

[0001] This invention relates to the field of display device technology, and in particular to a curved and straight deformation display device. Background Technology

[0002] With the continuous development of OLED technology, flexible screen technology is becoming more and more mature, and deformable display devices are increasingly favored by consumers. For example, foldable phones are currently a symbol of high-end mobile phones, while large-screen products such as computers and TVs pursue curved deformation for optimal viewing.

[0003] As display devices get larger and larger, consumers' viewing distance is often limited, and the experience of watching large screens at close range is not good, especially for computer monitors, where the viewing distance is less than one meter. Moreover, most people use computers all day long, and prolonged close-range viewing of large screens has a significant impact on eye health. Therefore, many curved screens have appeared on the market, placing the human eye in the center of the screen, providing a clearer viewing angle and relieving eye fatigue.

[0004] However, not all displays need to be curved. If the shape can be changed according to the user's needs, the effect is better. For example, flat displays are suitable for office use such as drawing and spreadsheet making; curved displays are suitable for entertainment use such as gaming and watching movies. Each has its advantages. Summary of the Invention

[0005] The purpose of this invention is to provide a curved and straight deformable display device that can change its shape according to the user's needs.

[0006] The technical solution of the present invention is as follows:

[0007] To achieve the above objectives, the present invention provides a curved / straight deformation display device, comprising:

[0008] The flexible screen has a first curved position and a second flat position.

[0009] A central support assembly is disposed on the back side of the flexible screen and connected to the flexible screen. The side of the central support assembly facing the flexible screen is provided with a plurality of spaced unidirectional damping elements.

[0010] At least two deformable components are fixed relative to each other on the back of the flexible screen body along the length direction of the flexible screen body. When the flexible screen body is in the first position, the deformable components bend with the flexible screen body, and each of the one-way damping elements presses against the corresponding deformable components to prevent the deformable components from rebounding. When the flexible screen body is in the second position, the deformable components are arranged side by side with the flexible screen body, and the one-way damping elements are spaced apart from the deformable components.

[0011] Furthermore, two deformation components are provided, and the two deformation components are arranged side by side on the back of the flexible screen. Each deformation component includes a cover plate and two deformation frames. The cover plate is installed on the side of the deformation frame away from the flexible screen. When the flexible screen is in the first position, the deformation frame and the cover plate bend with the flexible screen, and the one-way damping member presses against the cover plate.

[0012] Furthermore, the deformation frame includes at least two deformable strips arranged side by side. One deformable strip near the flexible screen is fixed to the back of the flexible screen, and the other deformable strip is fixed to the cover plate. When the flexible screen switches between the first position and the second position, adjacent deformable strips can slide and bend relative to each other; and / or,

[0013] The deformable assembly also includes a side cover fixed to the cover plate. Both ends of the side cover are provided with a storage groove and a locking block located on the inner wall of the storage groove. The end of the deformable frame away from the middle support assembly is provided with an embedding groove. The deformable frame is inserted into the storage groove, and the locking block is locked in the embedding groove.

[0014] Furthermore, the middle support assembly includes an upper middle support, a lower middle support, a central controller for electrical connection with the flexible screen, and a plurality of the unidirectional damping components. The upper middle support and the lower middle support are respectively fixed to the upper and lower ends of the central controller. Both the upper middle support and the lower middle support are connected to the middle position of the flexible screen. The plurality of unidirectional damping components are evenly installed on the upper middle support and the lower middle support.

[0015] Furthermore, the middle support assembly also includes several limiting rods for restricting the movement of the deformable component. Both the upper middle support and the lower middle support are provided with several mounting holes. The deformable component is provided with several strip-shaped limiting holes. One end of the limiting rod is installed on the mounting hole and the other end is inserted into the limiting hole. When the flexible screen body switches between the first position and the second position, the limiting rod can slide from one end of the strip-shaped limiting hole to the other end.

[0016] Furthermore, the middle support assembly also includes a plurality of first fasteners. Both the upper middle support and the lower middle support are provided with a plurality of first threaded holes. One end of the first fastener is installed on the first threaded hole, and the other end is pressed against the deformable component.

[0017] Furthermore, the deformable component is provided with a plurality of positioning holes along its length direction, and one end of the first fastener is installed on the first threaded hole and the other end is embedded in one of the plurality of positioning holes.

[0018] Furthermore, the curved and straight deformation display device also includes a column, which is installed at the end of the middle support assembly away from the flexible screen body, and both deformation components are movably connected to the column.

[0019] Furthermore, the bending and straightening deformation display device also includes several second fasteners, the column is provided with several second threaded holes, one end of the second fastener is installed on the second threaded hole, and the other end presses the deformation component against the unidirectional damping component.

[0020] Furthermore, the column includes a frame, a gear, and two racks. The gear is rotatably mounted on the frame, and the two racks are fixedly connected to the two deformable components respectively. The two racks are located at the upper and lower ends of the gear and are meshed with the gear.

[0021] Compared with the prior art, the beneficial effects of the present invention include at least the following:

[0022] The two deformable components of this invention are respectively fixed to the two sides of the back of the flexible screen. When the flexible screen needs to be in the first position, i.e., bent, the two sides of the flexible screen can be grasped by hand and force is applied forward. The flexible screen and the two deformable components will deform simultaneously. The one-way damping element on the middle support component presses against the corresponding deformable component. The one-way damping element and the deformable component generate a one-way rebound friction force to prevent the deformable component from rebounding and keep the flexible screen in an arc state. When the flexible screen needs to be in the second position, i.e., straight, the force balance can be broken by applying a reverse force by hand, and the flatness of the flexible screen and the deformable components can be restored. The flexible screen of this curved and straight deformable display device can switch freely between bent and straight states, which meets the needs of users and has a good user experience. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the curved and straight deformation display device provided in an embodiment of the present invention;

[0024] Figure 2 for Figure 1 Exploded view;

[0025] Figure 3 This is a partial top view of the bending deformation display device provided in an embodiment of the present invention;

[0026] Figure 4 for Figure 3 Top view of the deformation components inside the curved-straight deformation display device;

[0027] Figure 5 This is a partial top view of the curved / straight deformation display device provided in an embodiment of the present invention when it is flat;

[0028] Figure 6 for Figure 5Top view of the deformation components inside the curved-straight deformation display device;

[0029] Figure 7 An exploded view of the deformable component provided in an embodiment of the present invention;

[0030] Figure 8 for Figure 7 A magnified view of a portion of point A in the middle;

[0031] Figure 9 for Figure 7 A magnified view of a portion of point B in the middle;

[0032] Figure 10 for Figure 7 A magnified view of a portion of point C in the middle;

[0033] Figure 11 This is a partial structural schematic diagram of the cover plate provided in an embodiment of the present invention;

[0034] Figure 12 This is a schematic diagram of the structure of the support assembly provided in an embodiment of the present invention;

[0035] Figure 13 for Figure 12 Exploded view;

[0036] Figure 14 This is a top view of the curved deformation display device provided in an embodiment of the present invention after partial cross-section in a curved state;

[0037] Figure 15 This is a top view of the curved and straight deformation display device provided in an embodiment of the present invention after a cross-section of the part in a straight state;

[0038] Figure 16 This is a top view of a curved deformation display device in a curved state, provided in another embodiment of the present invention.

[0039] Figure 17 This is a top view of the curved and straight deformation display device in a flat state, provided in another embodiment of the present invention;

[0040] Figure 18 A schematic diagram of the curved and straight deformation display device provided in an embodiment of the present invention after removing the column and cover plate;

[0041] Figure 19 for Figure 18 A magnified view of a portion of point D in the middle;

[0042] Figure 20 This is a schematic diagram of the curved and straight deformation display device provided in an embodiment of the present invention after removing the support frame;

[0043] Figure 21A schematic diagram of the curved and straight deformation display device provided in an embodiment of the present invention after removing the flexible screen and the central controller;

[0044] Figure 22 This is a schematic diagram of the structure of the support frame provided in an embodiment of the present invention;

[0045] Figure 23 This is a schematic diagram of the gear structure provided in an embodiment of the present invention.

[0046] In the picture:

[0047] 10. Column; 11. Frame; 111. Accommodation space; 112. Insertion hole; 113. Third threaded hole; 114. Clearance hole; 12. Gear; 121. Wire hole; 122. Gear body; 123. Sleeve; 124. Annular baffle; 13. Rack; 20. Flexible screen body; 30. Middle support assembly; 31. One-way damping component; 32. Upper middle support; 321. Mounting hole; 322. First threaded hole; 323. Slot; 324. Accommodation slot; 325. Column; 326. Through hole; 33. Lower middle support; 34. Central controller; 341. Central control plate; 342 35. Central control module; 36. Limiting rod; 47. First fastener; 48. Deformation component; 49. Cover plate; 40. Limiting hole; 412. Positioning hole; 413. First clearance notch; 414. Second clearance notch; 42. Side cover; 421. Side support plate; 422. Sealing cover; 4221. Storage slot; 4222. Locking block; 43. Deformation frame; 441. Deformation strip; 432. First flexible strip; 433. Second flexible strip; 434. Middle flexible strip; 4341. Slot; 4342. Locking head; 4343. Groove; 435. Embedding slot; 50. Second fastener. Detailed Implementation

[0048] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0049] Please see Figures 1 to 6 ,as well as Figure 12 As shown, this embodiment of the invention discloses a bending and straightening deformation display device, including a column 10, a flexible screen 20, a central support assembly 30, and at least two deformation components 40. The flexible screen 20 is an OLED display made of flexible material and can be bent.

[0050] In this embodiment, the flexible screen 20 has a first bent position and a second straight position. The middle support assembly 30 is electrically connected to the flexible screen 20 and is sandwiched between the flexible screen 20 and the column 10. The front and rear ends of the middle support assembly 30 are respectively connected to the back side of the flexible screen 20 and the front side of the column 10. The side of the middle support assembly 30 facing the flexible screen 20 is provided with several spaced unidirectional damping elements 31. The deformable assembly 40 is fixed relative to the back side of the flexible screen 20 along the length direction of the flexible screen 20. There are two deformable assemblies 40, which are equivalent to being set on both sides of the middle support assembly 30. The two deformable assemblies 40 are not connected. Both deformable assemblies 40 are movably connected to the column 10. The two deformable assemblies 40 have the same structure and adopt a left-right universal design. The unidirectional damping elements 31 are unidirectional damping rubber.

[0051] When adjusting the curved-to-straight deformable display device, the flexible screen 20 can be grasped by hand and applied forward or backward to give it a first bent position and a second straight position. When the flexible screen 20 is in the first position, the deformable component 40 bends with the flexible screen 20, and each one-way damping component 31 presses against the corresponding deformable component 40 to prevent the deformable component 40 from rebounding. The one-way damping component 31 can lock the curvature of the bent flexible screen 20. When the flexible screen 20 is in the second position, the deformable component 40 is arranged side by side with the flexible screen 20, and the one-way damping component 31 is spaced apart from the deformable component 40. This curved-to-straight deformable display device allows the flexible screen 20 to be deformed manually, combining the advantages of both the bent and straight states of the flexible screen 20. The usage state of the flexible screen 20 can be manually changed according to the user's needs, resulting in good performance, low cost, and ease of mass production and promotion. Furthermore, the curved-to-straight deformable display device is thinner and lighter, with a better appearance.

[0052] Please refer to further information. Figures 7 to 19 As shown, in this embodiment, two deformable components 40 are arranged side by side on the back of the flexible screen 20. The deformable component 40 includes a cover plate 41, a side cover 42, and two deformation frames 43. The two deformation frames 43 are arranged side by side on the back of the flexible screen 20. The cover plate 41 is installed on the side of the deformation frame 43 away from the flexible screen 20. The cover plate 41 is made of spring steel plate material, which has strength and toughness, can be repeatedly deformed uniformly, and can return to flatness. The side cover 42 is fixed to the end of the cover plate 41 away from the middle support component 30 and connected to one end of the deformation frame 43. The cover plate 41 is movably connected to the column 10. The cover plate 41 forms an upper and lower double steel plate structure when combined with the back plate of the flexible screen 20. When the flexible screen 20 is in the first position, the deformation frame 43 and the cover plate 41 bend with the flexible screen 20. The cover plate 41 and the two spring steel plates of the flexible screen 20 are the basis for maintaining uniform arc deformation. The one-way damping member 31 presses against the cover plate 41.

[0053] The deformation frame 43 includes at least two deformation strips 431 arranged side by side. The deformation strip 431 on the side closer to the flexible screen 20 is fixed to the back of the flexible screen 20, and the deformation strip 431 on the other side is fixed to the cover plate 41. One end of each deformation strip 431 is fixedly connected to the corresponding side cover 42. The deformation frame 43 formed by the superposition of multiple deformation strips 431 creates a certain distance between the cover plate 41 and the flexible screen 20. The distance is a necessary condition for the ease of deformation and uniformity of the flexible screen 20. The deformation frame 43 composed of multiple deformation strips 431 will not cause much resistance to the deformation of the flexible screen 20. When the flexible screen 20 switches between the first position and the second position, the two adjacent deformation strips 431 can slide and bend against each other.

[0054] In this embodiment, the plurality of deformable strips 431 include a first flexible strip 432, a second flexible strip 433, and a plurality of interlocking intermediate flexible strips 434. The first flexible strip 432 is fixed to the back of the flexible screen 20, the second flexible strip 433 is fixed to the cover plate 41, and the plurality of intermediate flexible strips 434 are sandwiched between the first flexible strip 432 and the second flexible strip 433. The two outermost intermediate flexible strips 434 are respectively connected to the first flexible strip 432 and the second flexible strip 433, and one end of the first flexible strip 432, the second flexible strip 433, and the intermediate flexible strips 434 are all fixedly connected to the corresponding side cover 42. When the flexible screen 20 switches between the first position and the second position, the first flexible strip 432, the second flexible strip 433, and the intermediate flexible strips 434 can bend and slide against each other.

[0055] In some embodiments, each intermediate flexible strip 434 is provided with a slot 4341 and a head 4342 spaced apart from the slot 4341. The slot 4341 and the head 4342 are both provided along the length direction of the intermediate flexible strip 434 on the front and rear sides of the intermediate flexible strip 434. The first flexible strip 432 is provided with a head 4342, and the second flexible strip 433 is provided with a slot 4341. The first flexible strip 432 is spaced apart from an adjacent intermediate flexible strip 434, and the second flexible strip 433 is spaced apart from an adjacent intermediate flexible strip 434. The intermediate flexible strips 434 are connected to each other and to adjacent intermediate flexible strips 434 through the cooperation of the matching slots 4341 and the heads 4342. In this embodiment, the cross-sections of the slots 4341 and the heads 4342 are both "T" shaped structures, which can allow the deformation frames 43 to be continuously combined and stacked to a certain height. Of course, the slots 4341 and the heads 4342 can also be other shapes, and the first flexible strip 432 and the second flexible strip 433 can also have the same structure as the intermediate flexible strip 434.

[0056] In this embodiment, four sets of deformation frames 43 are fixed behind the flexible screen 20. The deformation frames 43 are symmetrical from left to right and parallel from top to bottom. Each set of deformation frames 43 is composed of multiple deformation strips 431 with suitable toughness and strength. Adjacent deformation strips 431 are inserted and engaged by T-shaped clips 4342 and clips 4341, so that the deformation strips 431 can be misaligned but not separated during deformation. Cover plates 41 are attached to the deformation strips 431 on the two sets of deformation frames 43 on the left and right sides to form deformation components 40. The two sets of deformation components 40 control the deformation action of the entire flexible screen 20. When the side of the flexible screen 20 is subjected to a tension perpendicular to the surface of the flexible screen 20, the flexible screen 20 deforms, which at the same time drives the deformation components 40 to deform. The outer arc length of the deformation component 40 is greater than the inner arc length. The cover plate 41 and the deformation strips 431 will be displaced and misaligned outward. The one-way damping component 31 can prevent the cover plate 41 from rebounding and keep the displacement distance of the deformation component 40 unchanged, thus maintaining the arc state. The deformation frame 43 keeps the cover plate 41 and the back plate of the flexible screen 20 at a certain distance, so that the tension on the entire flexible screen 20 and the deformation component 40 is constant, thus maintaining uniform arc deformation and preventing V-shaped or wave-shaped deformation.

[0057] In some embodiments, both ends of the side cover 42 are provided with a storage groove 4221 and a locking block 4222 located on the inner wall of the storage groove 4221. The end of the deformable frame 43 away from the middle support assembly 30 is provided with an embedding groove 435. Each deformable strip 431 is provided with a groove 4343. Multiple grooves 4343 are spliced ​​together to form the embedding groove 435. The end of the deformable frame 43 is inserted into the storage groove 4221, and the locking block 4222 is locked in the embedding groove 435. The side cover 42 covers the end of the deformable frame 43 to cover the end face and side face of the deformable frame 43. The cooperation of the locking block 4222 and the embedding groove 435 can make the deformable strip 431 shift outward with the side cover 42 during the deformation process of the deformable frame 43.

[0058] In some embodiments, the side cover 42 includes a side support plate 421, a cover 422, and several third fasteners. The side support plate 421 is fixed to the back of the flexible screen 20, and the cover 422 is installed on the side support plate 421 from the side by several third fasteners. The storage groove 4221 and the locking block 4222 are both provided on the side support plate 421. In this embodiment, when assembling the deformable component 40, the deformable strip 431 and the side cover 42 can be installed first, and the cover plate 41 can be pasted last to ensure the accuracy of the pasting position of the cover plate 41. At the same time, the buckle design formed by the deformable strip 431 and the cover plate 41 is both a deformable component 40 and an appearance part. There is no need to add an additional appearance part to cover up the unsightly parts, avoiding the influence of appearance parts on deformation. At the same time, it makes the deformable component 40 thin, with a suitable width, and a better appearance. The third fasteners are ordinary screws.

[0059] In this embodiment, the middle support assembly 30 includes an upper middle support 32, a lower middle support 33, a central controller 34 for electrical connection with the flexible screen 20, and several unidirectional damping components 31. The upper middle support 32 and the lower middle support 33 are respectively fixed to the upper and lower ends of the central controller 34 and are both connected to the column 10. The upper middle support 32 and the lower middle support 33 are each provided with several grooves 323. Several unidirectional damping components 31 are evenly installed on the grooves 323 of the upper middle support 32 and the lower middle support 33. The upper middle support 32, the lower middle support, and the central controller 34 can serve as sealing components for the openings of the two sets of deformable components 40 at the middle position of the flexible screen 20. The upper middle support 32 and the lower middle support 33 are both connected to the middle position of the flexible screen 20. The upper middle support 32 and the lower middle support 33 have the same structure and are interchangeable.

[0060] In some embodiments, the central controller 34 includes a central control board 341 and a central control module 342 fixed on the central control board 341. The upper central support 32 and the lower central support 33 are respectively fixed at the upper and lower ends of the central control board 341. The central control module 342 is electrically connected to the flexible screen 20 and is used to control the signal display and other functions of the flexible screen 20.

[0061] Specifically, the central controller 34, the upper middle bracket 32, and the lower middle bracket 33 are fixed together at the internal center of the two deformable components 40. The central control plate 341 is fixed in the center relative to the flexible screen 20 and the deformable components 40, and is suspended on both sides, that is, in the center of space. The central control plate 341 and the flexible screen 20 are kept at a certain distance from the cover plate 41, so that the central control plate 341 is not affected during the deformation process. In addition, in the structure of the central controller 34, the internal wires are as short as possible. After testing, FFC wires are prone to screen distortion or failure to light up. Therefore, special wires can be customized to place the central control plate 341 in the column 10.

[0062] The middle support assembly 30 also includes several limiting rods 35 for restricting the movement of the deformable assembly 40. The upper middle support 32 and the lower middle support 33 are each provided with several mounting holes 321. The deformable assembly 40 is provided with several strip-shaped limiting holes 411. One end of the limiting rod 35 is installed on the mounting hole 321 and the other end is inserted into the limiting hole 411. When the flexible screen 20 switches between the first position and the second position, the limiting rod 35 can slide from one end of the inner wall of the strip-shaped limiting hole 411 to the other end of the inner wall of the limiting hole 411. The limiting hole 411 in this embodiment has two limit points with the maximum bending arc of the flexible screen 20 and the straight state, which can prevent excessive operation from causing excessive arc and damaging the internal components and the flexible screen 20.

[0063] The middle support assembly 30 also includes several first fasteners 36. The upper middle support 32 and the lower middle support 33 are both provided with several first threaded holes 322. One end of the first fastener 36 is installed on the first threaded hole 322 and the other end is pressed against the deformation assembly 40. The first fastener 36 is a ball screw. The first fastener 36 is used in conjunction with the one-way damping component 31 to adjust the error value of the one-way damping component 31, which helps to position the curvature of the cover plate 41 and improve the tactile operation of deformation.

[0064] In some embodiments, the deformable component 40 has a plurality of positioning holes 412 along its length, and the plurality of positioning holes 412 are provided on the cover plate 41. One end of the first fastener 36 is installed on the first threaded hole 322, and the other end is embedded in one of the plurality of positioning holes 412. The flexible screen body 20 can be adjusted in various curvatures. The first fastener 36 is embedded in the positioning holes 412 on the cover plate 41 to generate resistance and a tactile feel, so as to further adjust the error value of the unidirectional damping component 31. The depth adjustment of the first fastener 36 can adjust the resistance. Figure 15 When the first fastener 36 is embedded in the outermost positioning hole 412, this is the positioning point for the flexible screen 20 to be in the second flat position. Figure 14 When the first fastener 36 is embedded in the innermost positioning hole 412, this is the positioning point where the flexible screen 20 is in the first bent position.

[0065] In another embodiment, please refer to Figure 16 and Figure 17 The bending and straightening deformation display device also includes several second fasteners 50. The column 10 is provided with several second threaded holes. One end of the second fastener 50 is installed on the second threaded hole, and the other end presses against the deformation component 40 on the one-way damping member 31. The second fastener 50 presses the cover plate 41 against the one-way damping member 31. At this time, during the deformation process of the flexible screen body 20, the two cover plates 41 move to the two outer sides respectively. The one-way damping member 31 is equivalent to a brake pad to prevent the cover plate 41 from rebounding. The second fastener 50 is a ball screw. When the second fastener 50 presses the cover plate 41, the cover plate 41 will not be scratched by the second fastener 50 during the movement. The resistance can be adjusted by adjusting the depth of the second fastener 50.

[0066] When the flexible screen 20 is subjected to force and arc deformation, the cover plate 41 and the deformation strip 431 will be displaced outward. When the displacement distance of the one-way damping component 31 that prevents rebound relative to the cover plate 41 remains unchanged, this state can be locked to maintain the arc state. The one-way damping component 31 is made of a material similar to brake rubber, with a large one-way resistance to resist the rebound force and a small reverse resistance, which has little impact on the reverse force of deformation. The resistance can be adjusted by adjusting the clamping force.

[0067] In some embodiments, both sides of the upper middle support 32 and both sides of the lower middle support 33 are provided with receiving grooves 324 for accommodating the deformation frame 43. The end of the deformation frame 43 away from the side cover 42 is inserted into the corresponding receiving groove 324. The upper middle support 32 and the lower middle support 33 cover the end of the deformation frame 43. The deformation frame 43 will not fall out of the receiving groove 324 during the deformation and misalignment process. The receiving groove 324 can cover up the deformation frame 43.

[0068] Please refer to further information. Figures 20 to 23 As shown, in this embodiment, the column 10 includes a frame 11, a gear 12, and two racks 13. The gear 12 is rotatably mounted on the frame 11, and the two racks 13 are fixedly connected to the two deformable components 40 respectively. The two racks 13 are located at the upper and lower ends of the gear 12 respectively and are meshed with the gear 12. By rotating the gear 12, the two deformable components 40 can extend outward synchronously during the deformation process, so that the left and right sides deform synchronously and the left and right sides have equal curvature, that is, the curvature of the entire screen is uniform. At the same time, it is also convenient to provide a technical basis for the later realization of electric deformation, that is, to use a motor to drive the gear 12 to rotate so that the two deformable components 40 are displaced to the sides to produce arc deformation.

[0069] In some embodiments, the support frame 11 is provided with a receiving space 111 and an insertion hole 112 communicating with the receiving space 111. A wire hole 121 is provided through the middle of the gear 12. The gear 12 includes a gear body 122, a sleeve 123, and an annular baffle 124. The sleeve 123 protrudes from the side of the gear body 122 away from the flexible screen 20. The annular baffle 124 protrudes from the outer wall of the sleeve 123 and abuts against the gear body 122. The gear body 122 meshes with two racks 13. 23 is inserted into the insertion hole 112 to facilitate the formation of a rotating shaft. The cover plate 41 is provided with a "C"-shaped first clearance notch 413 for avoiding the gear 12. The annular baffle 124 abuts against the column 10. The annular baffle 124 can be used as an extension design to prevent the gear 12 from falling downwards when it is inserted, and to facilitate the installation of the gear 12. The wire hole 121 passes through the gear body 122 and the sleeve 123 in sequence. The wire hole 121 is connected to the receiving space 111. The wire hole 121 can be used for the wiring of the middle bracket assembly 30.

[0070] In some embodiments, the middle support assembly 30 further includes a plurality of fourth fasteners. The upper middle support 32 and the lower middle support 33 are also provided with a plurality of pillars 325. The pillars 325 are provided with through holes 326. The uprights 10 are provided with third threaded holes 113. The cover plate 41 is provided with a "C"-shaped second clearance notch 414 for avoiding the pillars 325. The upper middle support 32 and the lower middle support 33 are both fixed to the third threaded holes 113 by a plurality of fourth fasteners. The fourth fasteners are ordinary screws.

[0071] In some embodiments, the support frame 11 is further provided with a clearance hole 114 for avoiding the movement of the limiting rod 35. The clearance hole 114 is a strip structure and is provided in correspondence with the limiting hole 411.

[0072] The present invention employs an ultra-thin, large-flat flexible screen body 20, an ultra-thin and ultra-narrow deformable component 40, and an ultra-thin and ultra-narrow column 10, thereby making the curved and straight deformable display device lighter, thinner, and more aesthetically pleasing.

[0073] Working principle of the curved and straight deformation display device:

[0074] When the flexible screen 20 needs to be adjusted to the first position for bending, when you grasp the two sides of the flexible screen 20 and apply force forward, the two sides of the flexible screen 20 will deform forward. At the same time, the deformation component 40 will deform simultaneously. The deformation strips 431 of the deformation component 40 will deform in stages. The bottom deformation strip 431 is fixed to the back of the flexible screen 20 without misalignment. The top deformation strip 431 is pasted to the cover plate 41 with the largest misalignment of the outermost circle of the arc (like the principle of bending a book page). During the deformation process, the deformation strips 431 only misalign in the horizontal direction. The vertical direction remains unchanged due to the limiting distance between the T-shaped clip 4342 and the slot 4341. This provides the necessary conditions for uniform arc deformation. The one-way damping component 31 in the middle part causes the cover plate 41 to generate a one-way rebound friction force. The friction force is very small during the deformation process. The hand force only needs to overcome the deformation force of the flexible screen 20. When the hand force is removed, the reverse friction force comes into play, keeping the flexible screen 20 in an arc state and preventing the flexible screen 20 from rebounding.

[0075] When it is necessary to adjust the flexible screen 20 from the first position to the second position so that the flexible screen 20 is in a flat state, the force balance is broken when a reverse force is applied by hand, so that the flexible screen 20 is restored to flatness. At this time, the deformation component 40 is arranged side by side with the flexible screen 20, and the unidirectional damping component 31 is spaced apart from the deformation component 40.

[0076] In summary, the two deformable components 40 of this invention are respectively fixed to the two sides of the back of the flexible screen 20. When the flexible screen 20 needs to be in the first position, i.e., the bent state, it can be grasped by hand on both sides of the flexible screen 20 and force is applied forward. The flexible screen 20 and the two deformable components 40 will deform simultaneously. The one-way damping element 31 on the middle support assembly 30 presses against the corresponding deformable component 40. The one-way damping element 31 and the deformable component 40 generate a one-way rebound friction force to prevent the deformable component 40 from rebounding, so that the flexible screen 20 maintains the arc state. When the flexible screen 20 needs to be in the second position, i.e. the straight state, the force balance can be broken by applying a reverse force by hand, and the flatness of the flexible screen 20 and the deformable components 40 can be restored. The flexible screen 20 of this curved and straight deformable display device can switch freely between the bent and straight states, which meets the needs of users and has a good user effect.

[0077] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A curved / straight deformation display device, characterized in that, include: The flexible screen has a first curved position and a second flat position. A central support assembly is disposed on the back side of the flexible screen and connected to the flexible screen. The side of the central support assembly facing the flexible screen is provided with a plurality of spaced unidirectional damping elements. At least two deformable components are fixed relative to each other on the back of the flexible screen body along the length direction of the flexible screen body. When the flexible screen body is in the first position, the deformable components bend with the flexible screen body, and each of the one-way damping elements presses against the corresponding deformable components to prevent the deformable components from rebounding. When the flexible screen body is in the second position, the deformable components are arranged side by side with the flexible screen body, and the one-way damping elements are spaced apart from the deformable components. Two deformation components are provided, and the two deformation components are arranged side by side on the back of the flexible screen. Each deformation component includes a cover plate and two deformation frames. Each deformation frame includes at least two deformation strips arranged side by side. The deformation strip on the side of the deformation frame closer to the flexible screen is fixed to the back of the flexible screen, and the deformation strip on the other side is fixed to the cover plate. Adjacent deformation strips are engaged by T-shaped clips and slots, so that the deformation strips can be misaligned but not separated during deformation. When the flexible screen switches between the first position and the second position, adjacent two deformation strips can slide and bend against each other. The deformable assembly also includes a side cover fixed to the cover plate. Both ends of the side cover are provided with a storage groove and a locking block located on the inner wall of the storage groove. The end of the deformable frame away from the middle support assembly is provided with an embedding groove. The deformable frame is inserted into the storage groove, and the locking block is locked in the embedding groove.

2. The curved / straight deformation display device according to claim 1, characterized in that, The cover plate is installed on the side of the deformation frame away from the flexible screen. When the flexible screen is in the first position, the deformation frame and the cover plate bend with the flexible screen, and the one-way damping member presses against the cover plate.

3. The curved / straight deformation display device according to claim 1, characterized in that, The middle support assembly includes an upper middle support, a lower middle support, a central controller for electrical connection with the flexible screen, and a plurality of unidirectional damping components. The upper middle support and the lower middle support are respectively fixed to the upper and lower ends of the central controller. The upper middle support and the lower middle support are both connected to the middle position of the flexible screen. The plurality of unidirectional damping components are evenly installed on the upper middle support and the lower middle support.

4. The curved / straight deformation display device according to claim 3, characterized in that, The middle support assembly also includes several limiting rods for restricting the movement of the deformable component. The upper middle support and the lower middle support are each provided with several mounting holes. The deformable component is provided with several strip-shaped limiting holes. One end of the limiting rod is installed on the mounting hole and the other end is inserted into the limiting hole. When the flexible screen body switches between the first position and the second position, the limiting rod can slide from one end of the strip-shaped limiting hole to the other end.

5. The curved / straight deformation display device according to claim 3, characterized in that, The middle support assembly also includes a number of first fasteners. Both the upper middle support and the lower middle support are provided with a number of first threaded holes. One end of the first fastener is installed on the first threaded hole and the other end is pressed against the deformable component.

6. The curved / straight deformation display device according to claim 5, characterized in that, The deformable component is provided with a plurality of positioning holes along its length direction, and one end of the first fastener is installed on the first threaded hole and the other end is embedded in one of the plurality of positioning holes.

7. The curved / straight deformation display device according to claim 1, characterized in that, The curved and straight deformation display device also includes a column, which is installed at the end of the middle support assembly away from the flexible screen body, and both deformation components are movably connected to the column.

8. The curved / straight deformation display device according to claim 7, characterized in that, The bending and straight deformation display device also includes several second fasteners. The column is provided with several second threaded holes. One end of the second fastener is installed on the second threaded hole, and the other end presses the deformation component against the unidirectional damping component.

9. The curved / straight deformation display device according to claim 7, characterized in that, The column includes a frame, a gear, and two racks. The gear is rotatably mounted on the frame, and the two racks are fixedly connected to the two deformable components respectively. The two racks are located at the upper and lower ends of the gear and are meshed with the gear.

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