A flexible screen support frame

Abstract

The present invention provides a flexible screen support frame, which includes a connecting base plate, multiple angle adjustment blocks, and a pull rope; the connecting base plate and multiple angle adjustment blocks are arranged in sequence along a set dimension and are respectively connected to the flexible screen; two adjacent angle adjustment blocks are rotatably connected within a set angle; the first end of the pull rope is connected to the connecting base plate, and the second end of the pull rope is connected to the angle adjustment block farthest from the connecting base plate, which is used to maintain or adjust the angle between the angle adjustment blocks, and thus maintain or adjust the curvature of the flexible screen. The present invention has an ingenious structure and can be applied to adjust the curvature of larger flexible screens. The adjustment process is simple and the adjustment accuracy is precise and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of display support frames, and in particular to a flexible screen support frame. Background Art

[0002] With the development of flexible screen technology, many new electronic devices have emerged, such as foldable screen phones and roll-up screen phones. Flexible screens usually require a bendable flexible bracket to support them.

[0003] However, existing flexible screen support structures are mostly suitable for small-screen electronic devices such as mobile phones and notebooks, but there is a lack of a flexible support structure suitable for large or ultra-large screens. Summary of the Invention

[0004] The object of the present invention is to provide a flexible screen support frame to solve at least one of the above-mentioned technical problems existing in the prior art.

[0005] In order to solve the above technical problems, the present invention provides a flexible screen support frame, comprising: a connecting seat plate, a plurality of angle adjustment blocks and a pull rope;

[0006] The connecting seat plate and the plurality of angle adjustment blocks are arranged in sequence along the set dimension and are respectively connected to the flexible screen;

[0007] The two adjacent angle adjustment blocks are rotatably connected within a set angle;

[0008] The first end of the pull rope is connected to the connecting seat plate, and the second end of the pull rope is connected to the angle adjustment block farthest from the connecting seat plate, which is used to maintain or adjust the angle between the angle adjustment blocks, and thus maintain or adjust the curvature of the flexible screen.

[0009] Furthermore, it also includes a torsion spring, and the two adjacent angle adjustment blocks are rotatably connected through a pivot shaft. The torsion spring is mounted on the pivot shaft. The torsion spring tends to overcome the tension of the pull rope to increase the angle between the two adjacent angle adjustment blocks.

[0010] The torsion spring and the pull rope cooperate to maintain the angle or swing angle between the angle adjustment blocks, that is, to maintain the flexible screen in a certain curvature state after adjustment.

[0011] Furthermore, the angle adjustment block as a whole is in a trapezoidal shape in a plane containing the set dimension and perpendicular to the flexible screen; the side length of the trapezoid is shorter on the side close to the flexible screen, and is longer on the side away from the flexible screen.

[0012] In this way, the flexible screen can be bent to form a concave curved screen.

[0013] Preferably, the trapezoid is an isosceles trapezoid.

[0014] Furthermore, an angle limiting structure for limiting the set angle is provided between two adjacent angle adjustment blocks.

[0015] Furthermore, the angle limiting structure includes: a limiting protrusion and a limiting platform; the limiting protrusion is fixedly set on one of the two adjacent angle adjustment blocks, and the limiting platform is fixedly set on the other of the two adjacent angle adjustment blocks; when the two angle adjustment blocks swing relative to each other, the limiting protrusion abuts against the limiting platform, thereby limiting the maximum swinging angle of the two angle adjustment blocks.

[0016] Preferably, the connecting seat plate is fixedly connected to the flexible screen.

[0017] Furthermore, part or all of the angle adjustment blocks can be relatively slidably pressed against the back of the flexible screen.

[0018] When the pull rope is tightened or loosened, part or all of the angle adjustment blocks slide along the back of the flexible screen, thereby pressing against the flexible screen and forcing its curvature to change.

[0019] Furthermore, a slider or a slide groove is provided on the back of the flexible screen, and a slide groove or a slider adapted thereto is provided on the angle adjustment block.

[0020] The slide groove is set along the set dimension. When the pull rope is tightened or loosened, the slider slides along the slide groove, ensuring that the angle adjustment block is close to the flexible screen while forcing the curvature of the flexible screen to change.

[0021] Furthermore, it also includes a clamping plate made of elastic material; the clamping plate is arranged in parallel and spaced apart on the back of the flexible screen; and a plurality of the angle adjustment blocks are clamped between the clamping plate and the flexible screen.

[0022] A splint made of elastic material can be prefabricated with a specific curvature, replacing the above-mentioned torsion spring and tending to force the flexible screen to maintain a specific curvature until its curvature is changed by tightening or loosening the pull rope.

[0023] Furthermore, the angle adjustment block closest to the connecting seat plate is fixedly connected to the clamping plate, and the other angle adjustment blocks can be slidably arranged along the set dimension in the interlayer between the clamping plate and the flexible screen.

[0024] Furthermore, the outer end of the splint away from the connecting seat plate is fixedly connected to the flexible screen; the inner end of the splint close to the connecting seat plate can be slidably arranged relative to the flexible screen.

[0025] Furthermore, it also includes a plurality of support columns, one end of which is fixedly connected to the flexible screen, and the other end is connected to the splint, for maintaining the spacing distance between the splint and the flexible screen.

[0026] Preferably, the set dimension is a horizontal direction. Of course, the set dimension can also be a vertical direction.

[0027] Furthermore, at least two rows of the support columns are included, and each row includes a plurality of the support columns arranged at intervals; and a plurality of the angle adjustment blocks are arranged between the two rows.

[0028] Furthermore, the support columns farthest from the connecting seat plate in each row are fixedly connected to the clamping plate; the other support columns are slidably connected to the clamping plate along the set dimension.

[0029] Furthermore, a guide limiting groove is provided on the clamping plate, and the other end of the other supporting column can be slidably inserted into the guide limiting groove.

[0030] Preferably, the cross section of the guide limit groove is T-shaped (or dovetail groove), and a T-shaped guide limit block (T-shaped block or dovetail block) adapted to the T-shaped guide limit groove is provided on the other end of the support column;

[0031] Alternatively, the other end of the support column is provided with a cap-shaped structure such as a nut or a screw cap, and the cap-shaped structure rests on the outer edge of the guide limiting groove.

[0032] The above structures are all used to keep the spacing distance between the splint and the flexible screen unchanged. When the curvature of the series structure of the angle adjustment block changes, the sandwich structure can be used to force the curvature of the flexible screen and the splint to change.

[0033] The splint can be a thin plate made of stainless steel, copper alloy, hard plastic or other materials, which has a certain rigidity to provide support, and a certain elasticity to change with the curvature of the flexible screen.

[0034] Furthermore, it also includes a curvature adjustment mechanism for tightening or loosening the pull rope, thereby adjusting the angle between the angle adjustment blocks and the curvature of the flexible screen;

[0035] The curvature adjustment mechanism includes: a connecting block and an actuator;

[0036] The connecting block is fixedly arranged on the clamping plate and close to one end of the connecting seat plate;

[0037] A pin is provided on the connecting seat plate, and one end of the pull rope is fixedly connected to the connecting block after passing through the pin;

[0038] The actuator is arranged between the connecting seat plate and the connecting block, and is used to push the connecting block to move along the set dimension, thereby tightening or loosening the pull rope.

[0039] Furthermore, the actuator is an electric or manual telescopic mechanism, and the telescopic end of the telescopic mechanism is fixedly connected to the connecting block.

[0040] Furthermore, the actuator includes: a fixed block and a rotating block that are coaxially arranged to rotate relative to each other;

[0041] The fixing block is fixedly arranged on the connecting base plate, and a first cam structure is provided on the end surface of the fixing block; the first cam structure includes a plurality of first slots arranged at different heights along the set dimension;

[0042] A second cam structure adapted to the first cam structure is provided on one end surface of the rotating block; the second cam structure includes a second protrusion adapted to the first slot; the other end surface of the rotating block abuts against the connecting block;

[0043] By rotating the rotating block, the second protrusion can selectively engage with one of the first slots to adjust the axial distance between the rotating block and the fixed block, thereby adjusting the position of the connecting block in the set dimension and tightening or loosening the pull rope.

[0044] Furthermore, it also includes a column and a base, the column is vertically placed on the base; the connecting seat plate is arranged on the column via a connecting shaft.

[0045] Preferably, the connecting shaft is fixedly connected to the column; the fixing block is fixedly connected to the connecting base plate, and the fixing block and the connecting base plate are relatively rotatable and sleeved on the connecting shaft;

[0046] The rotating block is fixed relative to the connecting shaft in the circumferential direction and can be translated relative to the connecting shaft in the axial direction;

[0047] When adjusting the pitch viewing angle of the flexible screen, the flexible screen drives the fixed block to rotate through the connecting seat plate. The fixed block rotates relative to the rotating block, and the rotating block is forced to translate axially through the first cam structure and the second cam structure, and then the curvature of the flexible screen is adjusted through the angle adjustment block.

[0048] Furthermore, it includes two groups of connecting seat plates, multiple angle adjustment blocks and pull ropes that are symmetrically arranged on the left and right; that is, the connecting seat plates are arranged in the middle of the flexible screen, and the multiple angle adjustment blocks are arranged in sequence from the middle of the flexible screen to the edges on both sides.

[0049] Furthermore, the number of the angle adjustment blocks is 5-100.

[0050] By adopting the above technical solution, the present invention has the following beneficial effects:

[0051] The flexible screen support frame provided by the present invention has an ingenious structure and can be applied to adjust the curvature of a larger flexible screen. The adjustment process is simple and the adjustment accuracy is precise and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0053] Figure 1 A three-dimensional diagram of a flexible screen support frame provided in an embodiment of the present invention;

[0054] Figure 2 for Figure 1 A partial enlarged view of point C in the middle;

[0055] Figure 3 A front view of a flexible screen support frame provided by an embodiment of the present invention;

[0056] Figure 4 for Figure 3 BB cross-sectional view in;

[0057] Figure 5 for Figure 4 The enlarged view of point D in the figure;

[0058] Figure 6 is a three-dimensional diagram of the curvature adjustment structure in the embodiment;

[0059] Figure 7 This is the front view of the curvature adjustment structure after removing the splint and flexible screen;

[0060] Figure 8 for Figure 7 Middle AA section view.

[0061] Reference numerals:

[0062] 1-flexible screen; 10-column; 11-base; 20-plywood; 21-guide limit groove; 30-connecting seat plate; 31-pin shaft; 32-pull rope; 40-angle adjustment block; 40a-proximal adjustment block; 40b-distal adjustment block; 41-limiting protrusion; 42-limiting platform; 50-support column; 60-connecting block; 70-fixed block; 80-rotating block; 81-connecting shaft. DETAILED DESCRIPTION

[0063] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0064] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0065] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0066] The present invention will be further explained below with reference to specific embodiments.

[0067] like Figure 1-8 As shown, this embodiment provides a flexible screen support frame, comprising: a connecting seat plate 30, a plurality of angle adjustment blocks 40 and a pull rope 32; the connecting seat plate 30 and the plurality of angle adjustment blocks 40 are arranged in sequence along a set dimension and are respectively connected to the flexible screen 1; two adjacent angle adjustment blocks 40 are rotatably connected within a set angle; the first end of the pull rope 32 is connected to the connecting seat plate 30. The angle adjustment blocks 40 include a distal adjustment block 40b farthest from the connecting seat plate 30; the second end of the pull rope 32 is connected to the distal adjustment block 40b, and is used to maintain or adjust the angle between the angle adjustment blocks 40, thereby maintaining or adjusting the curvature of the flexible screen 1.

[0068] Specifically, the angle adjustment block 40 is provided with a through hole, and the pull rope 32 passes through the through holes on all the angle adjustment blocks 40 in sequence and is fixedly connected to the outer end surface of the farthest angle adjustment block 40.

[0069] Optionally, this embodiment may further include a torsion spring (not shown). Two adjacent angle adjustment blocks 40 are pivotally connected via a pivot shaft. The torsion spring is mounted on the pivot shaft. The torsion spring tends to overcome the tension of the pull cord 32, thereby increasing the angle between the two adjacent angle adjustment blocks 40. The torsion spring cooperates with the pull cord 32 to maintain the angle or pivot angle between the angle adjustment blocks 40, that is, to maintain the flexible screen 1 in a certain curvature state after adjustment.

[0070] Furthermore, the angle adjustment block 40 is shaped as a trapezoid in a plane containing the set dimension and perpendicular to the flexible screen 1. The trapezoid has shorter sides closer to the flexible screen 1 and longer sides farther from the flexible screen 1. This allows the flexible screen 1 to be bent to form a concave curved surface. Preferably, the trapezoid is an isosceles trapezoid.

[0071] More preferably, an angle limiting structure for limiting the set angle is provided between two adjacent angle adjustment blocks 40 .

[0072] Furthermore, the angle limiting structure includes: a limiting protrusion 41 and a limiting platform 42; the limiting protrusion 41 is fixedly set on one of the two adjacent angle adjustment blocks 40, and the limiting platform 42 is fixedly set on the other of the two adjacent angle adjustment blocks 40; when the two angle adjustment blocks 40 swing relative to each other, the limiting protrusion 41 abuts against the limiting platform 42, thereby limiting the maximum swinging angle of the two angle adjustment blocks 40.

[0073] Preferably, the connecting seat plate 30 is fixedly connected to the flexible screen 1. Part or all of the angle adjustment blocks 40 can be relatively slidably pressed against the back of the flexible screen 1 along the set dimension. When the pull cord 32 is tightened or loosened, part or all of the angle adjustment blocks 40 slide against the back of the flexible screen 1, and then press against the flexible screen 1 and force its curvature to change. Optionally, a slider or a slide groove is provided on the back of the flexible screen 1, and a slide groove or slider adapted thereto is provided on the angle adjustment block 40. The slide groove is provided along the set dimension, and when the pull cord 32 is tightened or loosened, the slider slides along the slide groove, ensuring that the angle adjustment block 40 is pressed against the flexible screen 1 while forcing the curvature of the flexible screen 1 to change.

[0074] More preferably, based on the above solution, this embodiment further includes a clamping plate 20 made of an elastic material; the clamping plates 20 are arranged in parallel and spaced relation on the back of the flexible screen 1; and a plurality of the angle adjustment blocks 40 are clamped between the clamping plates 20 and the flexible screen 1. The clamping plates 20 made of elastic material can be prefabricated with a specific curvature, replacing the aforementioned torsion spring to tend to force the flexible screen 1 to maintain a specific curvature until the curvature is changed by tightening or loosening the pull cord 32.

[0075] Reference Figure 4 As shown, the angle adjustment block 40 includes a proximal adjustment block 40a closest to the connecting seat plate 30, and the proximal adjustment block 40a is fixedly connected to the splint 20. The other angle adjustment blocks 40 can be slidably arranged along the set dimension in the interlayer between the splint 20 and the flexible screen 1.

[0076] Reference Figure 3 As shown, the outer end of the splint 20 away from the connecting seat plate 30 is fixedly connected to the flexible screen 1; the inner end of the splint 20 close to the connecting seat plate 30 can be slidably arranged relative to the flexible screen 1.

[0077] Furthermore, it also includes a plurality of support columns 50, one end of each support column 50 is fixedly connected to the flexible screen 1, and the other end is connected to the splint 20, for maintaining the spacing distance between the splint 20 and the flexible screen 1.

[0078] In this embodiment, the predetermined dimension is horizontal. Furthermore, the support column 50 comprises at least two rows, each row comprising a plurality of support columns 50 spaced apart from each other. A plurality of angle adjustment blocks 40 are disposed between the two rows. The support column 50 in each row furthest from the connecting seat plate 30 is fixedly connected to the clamping plate 20; the remaining support columns 50 are slidably connected to the clamping plate 20 along the predetermined dimension.

[0079] See also Figure 2 As shown, a guide limit groove 21 is provided on the clamping plate 20 , and the other end of the other support column 50 can be slidably inserted into the guide limit groove 21 .

[0080] Preferably, the cross-section of the guide limit groove 21 is T-shaped (or a dovetail groove), and a T-shaped guide limit block (T-shaped block or dovetail block) adapted to the T-shaped guide limit groove 21 is provided on the other end of the support column 50; or, a cap-shaped structure such as a nut or a nut is provided on the other end of the support column 50, and the cap-shaped structure rests on the outer edge of the guide limit groove 21.

[0081] The above structures are used to maintain the spacing between the clamping plate 20 and the flexible screen 1. When the curvature of the series structure of the angle adjustment blocks 40 changes, the sandwich structure can be used to force the curvature of the flexible screen 1 and the clamping plate 20 to change. At the same time, it prevents the clamping plate 20 from separating from the flexible screen 1.

[0082] The splint 20 can be a thin plate made of stainless steel, copper alloy, hard plastic or other materials, which has a certain rigidity to provide support, and a certain elasticity to change with the curvature of the flexible screen 1 .

[0083] See also Figure 2As shown, it also includes a curvature adjustment mechanism for tightening or loosening the pull rope 32, thereby adjusting the angle between the angle adjustment blocks 40 and the curvature of the flexible screen 1; the curvature adjustment mechanism includes: a connecting block 60 and an actuator;

[0084] The connecting block 60 is fixedly arranged on the splint 20 and close to one end of the connecting seat plate 30; a pin shaft 31 is provided on the connecting seat plate 30, and one end of the pull rope 32 is fixedly connected to the connecting block 60 after passing through the pin shaft 31; the actuator is arranged between the connecting seat plate 30 and the connecting block 60, and is used to push the connecting block 60 to move along the set dimension, thereby tightening or loosening the pull rope 32.

[0085] The actuator may be an electric or manual telescopic mechanism, and the telescopic end of the telescopic mechanism is fixedly connected to the connecting block 60 .

[0086] In this embodiment, the actuator includes: a fixed block 70 and a rotating block 80 that are coaxially rotatable relative to each other; the fixed block 70 is fixedly mounted on the connecting base plate 30, and a first cam structure is provided on the end surface of the fixed block 70; the first cam structure includes a plurality of first slots arranged at different heights along the set dimension; a second cam structure that is adapted to the first cam structure is provided on one end surface of the rotating block 80; the second cam structure includes a second protrusion that is adapted to the first slot; and the other end surface of the rotating block 80 abuts against the connecting block 60;

[0087] By rotating the rotating block 80, the second protrusion can selectively engage with one of the first slots to adjust the axial distance between the rotating block and the fixed block 70, thereby adjusting the position of the connecting block 60 in the set dimension and tightening or loosening the pull rope 32.

[0088] Furthermore, it also includes a column 10 and a base 11 , wherein the column 10 is vertically disposed on the base 11 ; and the connecting seat plate 30 is disposed on the column 10 via a connecting shaft 81 .

[0089] Preferably, the connecting shaft 81 is relatively fixedly connected to the column 10; the fixed block 70 is fixedly connected to the connecting seat plate 30, and the fixed block 70 and the connecting seat plate 30 are relatively rotatable and mounted on the connecting shaft 81; the rotating block 80 is relatively fixed to the connecting shaft 81 in the circumferential direction and can be translated relative to the connecting shaft 81 in the axial direction; when adjusting the pitch viewing angle of the flexible screen, the flexible screen drives the fixed block 70 to rotate through the connecting seat plate 30, and the fixed block 70 rotates relative to the rotating block 80, and the rotating block 80 is forced to translate axially through the first cam structure and the second cam structure, and then the curvature of the flexible screen is adjusted by the angle adjustment block.

[0090] The cross-sectional shape of the connecting portion between the connecting shaft 81 and the rotating block 80 can be polygonal, flat, or non-circular such as a chord section, and the cross-sectional shape of the connecting shaft hole of the rotating block 80 can also be polygonal, flat, or non-circular such as a chord section, thereby achieving the purpose of circumferential fixation.

[0091] Preferably, the system comprises two sets of symmetrically arranged connecting base plates 30, multiple angle adjustment blocks 40, and pull cords 32. Specifically, the connecting base plates 30 are arranged in the middle of the flexible screen 1, and the multiple angle adjustment blocks 40 are arranged sequentially from the middle to the edges of the flexible screen 1. The number of angle adjustment blocks 40 ranges from 5 to 100.

[0092] The present invention has an ingenious structure and can be applied to the curvature adjustment of a larger flexible screen 1 . The adjustment process is simple and the adjustment accuracy is precise and reliable.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flexible screen support frame, characterized in that: include: Connect the seat plate, multiple angle adjustment blocks and pull ropes; The connecting seat plate and the plurality of angle adjustment blocks are arranged in sequence along the set dimension and are respectively connected to the flexible screen; The two adjacent angle adjustment blocks are rotatably connected within a set angle; The first end of the pull rope is connected to the connecting seat plate, and the second end of the pull rope is connected to the angle adjustment block farthest from the connecting seat plate, so as to maintain or adjust the angle between the angle adjustment blocks, thereby maintaining or adjusting the curvature of the flexible screen; The device further comprises a torsion spring, wherein two adjacent angle adjustment blocks are rotatably connected via a pivot shaft, and the torsion spring is mounted on the pivot shaft. The torsion spring tends to overcome the tension of the pull rope to increase the angle between the two adjacent angle adjustment blocks. The angle adjustment block has a trapezoidal shape as a whole in a plane containing the set dimension and perpendicular to the flexible screen; the side of the trapezoid is shorter on the side close to the flexible screen and longer on the side away from the flexible screen; An angle limiting structure for limiting the set angle is provided between two adjacent angle adjustment blocks; The connecting seat plate is fixedly connected to the flexible screen.

2. The flexible screen support frame according to claim 1, characterized in that: The trapezoid is an isosceles trapezoid.

3. The flexible screen support frame according to claim 1, characterized in that: The angle limiting structure includes: a limiting protrusion and a limiting platform; the limiting protrusion is fixedly set on one of the two adjacent angle adjustment blocks, and the limiting platform is fixedly set on the other of the two adjacent angle adjustment blocks; when the two angle adjustment blocks swing relative to each other, the limiting protrusion abuts against the limiting platform, thereby limiting the maximum swinging angle of the two angle adjustment blocks.

4. The flexible screen support frame according to claim 1, characterized in that: Part or all of the angle adjustment blocks can be relatively slidably pressed against the back of the flexible screen.

5. The flexible screen support frame according to claim 4, characterized in that: The back of the flexible screen is provided with a slider or a slide groove, and the angle adjustment block is provided with a slide groove or a slider adapted therewith.

6. The flexible screen support frame according to claim 1, characterized in that: It also includes a clamping plate made of elastic material; the clamping plates are arranged in parallel and at intervals on the back of the flexible screen; and a plurality of the angle adjustment blocks are clamped between the clamping plate and the flexible screen.

7. The flexible screen support frame according to claim 6, characterized in that: The angle adjustment block closest to the connecting seat plate is fixedly connected to the clamping plate, and the other angle adjustment blocks can be slidably arranged along the set dimension in the interlayer between the clamping plate and the flexible screen.

8. The flexible screen support frame according to claim 7, characterized in that: The outer end of the splint away from the connecting seat plate is fixedly connected to the flexible screen; the inner end of the splint close to the connecting seat plate can be slidably arranged relative to the flexible screen.

9. The flexible screen support frame according to claim 8, characterized in that: It also includes a plurality of support columns, one end of which is fixedly connected to the flexible screen, and the other end of which is connected to the splint, so as to maintain the spacing distance between the splint and the flexible screen.

10. The flexible screen support frame according to claim 1, characterized in that: The set dimension is the horizontal direction.

11. The flexible screen support frame according to claim 9, characterized in that: At least two rows of support columns are included, each row includes a plurality of support columns arranged at intervals; and a plurality of angle adjustment blocks are arranged between the two rows.

12. The flexible screen support frame according to claim 11, characterized in that: The support columns in each row that are farthest from the connecting seat plate are fixedly connected to the clamping plate; the other support columns are slidably connected to the clamping plate along the set dimension.

13. The flexible screen support frame according to claim 12, characterized in that: The clamping plate is provided with a guide limiting groove, and the other end of the other supporting column can be slidably inserted into the guide limiting groove.

14. The flexible screen support frame according to claim 13, characterized in that: The cross section of the guide limit groove is T-shaped, and a T-shaped guide limit block adapted to the T-shaped guide limit groove is provided on the other end of the support column; Alternatively, a cap-shaped structure is provided at the other end of the support column, and the cap-shaped structure rests on the outer edge of the guide limiting groove.

15. The flexible screen support frame according to claim 6, characterized in that: It also includes a curvature adjustment mechanism for tightening or loosening the pull rope, thereby adjusting the angle between the angle adjustment blocks and the curvature of the flexible screen; The curvature adjustment mechanism includes: a connecting block and an actuator; The connecting block is fixedly arranged on the clamping plate and close to one end of the connecting seat plate; A pin is provided on the connecting seat plate, and one end of the pull rope is fixedly connected to the connecting block after passing through the pin; The actuator is arranged between the connecting seat plate and the connecting block, and is used to push the connecting block to move along the set dimension, thereby tightening or loosening the pull rope.

16. The flexible screen support frame according to claim 15, characterized in that: The actuator is an electric or manual telescopic mechanism, and the telescopic end of the telescopic mechanism is fixedly connected to the connecting block.

17. The flexible screen support frame according to claim 15, characterized in that: The actuator comprises: a fixed block and a rotating block which are coaxially arranged and can rotate relative to each other; The fixing block is fixedly arranged on the connecting base plate, and a first cam structure is provided on the end surface of the fixing block; the first cam structure includes a plurality of first slots arranged at different heights along the set dimension; A second cam structure adapted to the first cam structure is provided on one end surface of the rotating block; the second cam structure includes a second protrusion adapted to the first slot; the other end surface of the rotating block abuts against the connecting block; By rotating the rotating block, the second protrusion can selectively engage with one of the first slots to adjust the axial distance between the rotating block and the fixed block, thereby adjusting the position of the connecting block in the set dimension and tightening or loosening the pull rope.

18. The flexible screen support frame according to claim 17, characterized in that: It also includes a column and a base, wherein the column is vertically arranged on the base; and the connecting seat plate is arranged on the column through a connecting shaft.

19. The flexible screen support frame according to claim 18, characterized in that: The connecting shaft is relatively fixedly connected to the column; the fixing block is fixedly connected to the connecting base plate, and the fixing block and the connecting base plate are relatively rotatable and sleeved on the connecting shaft; The rotating block is fixed relative to the connecting shaft in the circumferential direction and can be translated relative to the connecting shaft in the axial direction; When adjusting the pitch viewing angle of the flexible screen, the flexible screen drives the fixed block to rotate through the connecting seat plate. The fixed block rotates relative to the rotating block, and the rotating block is forced to translate axially through the first cam structure and the second cam structure, and then the curvature of the flexible screen is adjusted through the angle adjustment block.

20. The flexible screen support frame according to claim 1, characterized in that: It includes two groups of connecting seat plates, multiple angle adjustment blocks and pull ropes that are symmetrically arranged on the left and right; that is, the connecting seat plates are arranged in the middle of the flexible screen, and the multiple angle adjustment blocks are arranged in sequence from the middle of the flexible screen to the edges on both sides.

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