WO2021217954A1

WO2021217954A1 - Arc fixing structure and display screen

Info

Publication number: WO2021217954A1
Application number: PCT/CN2020/109458
Authority: WO
Inventors: 李强强; 陆晨
Original assignee: 深圳市雷迪奥视觉技术有限公司
Priority date: 2020-04-30
Filing date: 2020-08-17
Publication date: 2021-11-04
Also published as: CN111402749A

Abstract

An arc fixing structure and a display screen. The arc fixing structure comprises a middle frame (2) and side frames (3) located at both sides of the middle frame. The middle frame (2) and each side frame (3) are slidably connected by means of an arc adjustment structure, the arc adjustment structure comprises an arc-shaped groove (4) connected to the middle frame (2) and a sliding structure (5) connected to the side frame (3), and when the sliding structure (5) slides in the arc-shaped groove (4), the side frame (3) is driven to move, so that the moving trajectory of the side frame (3) is in an arc shape. Different from the situation in which after the existing assembled large curved screen forms a curved surface, both ends of the curved screen are straight, for the curved screen formed in the present invention, both ends of the curved screen formed by the bending of the arc fixing structures can be bent into an arc shape, so that a real curved surface is obtained, greatly improving the bending effect, and further effectively improving the curved display effect of the display screen.

Description

Fixed arc structure and display

Technical field

The invention relates to the technical field of display screens, in particular to a fixed arc structure and a display screen.

Background technique

Current spliced LED displays usually focus on seamless splicing and the convenience and stability of splicing installation. That is to say, the existing spliced LED displays are basically flat, with very few large curved screens. When curved surfaces need to be assembled, arc connection locks are usually used to connect multiple screens to assemble large curved screens, but this curved surface effect is not a true curved surface. Especially after the curved surface is curved, the curvature may be more uniform in the middle, but the sides will be relatively straight, so that the curve formed by the curved surface is similar to a parabola, which affects the display effect of the curved surface of the display screen.

technical problem

The technical problem to be solved by the present invention is to provide a fixed arc structure capable of improving the display effect of the curved surface of the display screen and a display screen with the fixed arc structure.

Technical solutions

In order to solve the above technical problems, the technical solution adopted by the present invention is: a fixed-arc structure, including a middle frame and side frames on both sides thereof, the middle frame and the side frame are slidingly connected by an arc adjustment structure, and the arc adjustment structure includes a connection with the middle frame The arc-shaped groove and the sliding structure connected with the side frame. When the sliding structure slides in the arc-shaped groove, it drives the side frame to move, so that the moving trajectory of the side frame is in an arc shape.

In order to solve the above technical problems, the present invention also adopts the following technical solutions: the display screen includes a bendable display module, and also includes the above-mentioned fixed arc structure, and the bendable display module is arranged on the fixed arc structure.

Beneficial effect

The beneficial effect of the present invention is that the two ends of the curved screen are straight after the existing large curved screen is assembled to form a curved surface, and the two ends of the curved screen formed by the bending of the fixed arc structure can be bent to form an arc. In this way, a true curved surface is obtained, so that the splicing position of adjacent screen bodies does not form a splicing angle but a circular arc, which greatly improves the bending effect and effectively improves the display effect of the curved surface of the display screen.

Description of the drawings

FIG. 1 is a schematic diagram of a curved track of a display screen according to the first embodiment of the present invention;

2 is a schematic diagram of the overall structure of the fixed-arc structure of the first embodiment of the present invention;

3 is a schematic structural diagram of the arc adjustment structure in the fixed arc structure of the first embodiment of the present invention;

4 is an exploded view of the arc adjustment structure in the fixed arc structure of the first embodiment of the present invention;

5 is a cross-sectional view of the arc adjustment structure in the fixed arc structure of the first embodiment of the present invention.

Label description:

1. Bendable display module; 2. Middle frame; 3. Side frame; 4. Arc-shaped groove; 5. Sliding structure; 6. Extension arm; 7. First handle; 8. First connecting plate; 9. Two connecting plates; 10, second handle; 11, sliding rod; 12, boss; 13, arc chute; 14, lock rod; 15, movable groove; 16, spacer; 17, handle; 18, pressing Pieces; 19. Pressing pieces; 20. Teeth; 21. Elastic positioning pieces.

Embodiments of the present invention

In order to describe in detail the technical content, the achieved objectives and effects of the present invention, the following description will be given in conjunction with the embodiments and the accompanying drawings.

The most critical idea of the present invention is that the side frame can draw an arc-shaped movement track through the cooperation of the sliding structure and the arc-shaped groove.

Please refer to Figures 1 to 5, the fixed-arc structure includes a middle frame 2 and side frames 3 located on both sides thereof. The middle frame 2 and the side frame 3 are slidingly connected by an arc adjustment structure, and the arc adjustment structure includes a connection with the middle frame 2. The arc-shaped groove 4 and the sliding structure 5 connected with the side frame 3, when the sliding structure 5 slides in the arc-shaped groove 4, drive the side frame 3 to move, so that the movement trajectory of the side frame 3 is in an arc shape.

From the above description, the beneficial effects of the present invention are: different from the existing assembled large curved screen to form a curved surface, the two ends of the curved screen are straight, and the two ends of the curved screen formed by bending the fixed arc structure The arc can be bent to obtain a true curved surface, so that the splicing angle of the adjacent screen bodies will not form a splicing angle but a circular arc, which greatly improves the bending effect and effectively improves the curved surface of the display screen. display effect.

Furthermore, the side frame 3 is also provided with a connecting area for connecting the ends of the bendable display module 1, and when the side frame 3 slides relative to the middle frame 2, the moving track of the connecting area is in an arc shape.

Further, the moving track line of the side frame 3 and the center line of the arc-shaped groove 4 are co-circular.

It can be seen from the above description that when the side frame 3 slides relative to the middle frame 2, the side frame 3 will draw the end of the bendable display module 1 to draw an arc-shaped movement track, thereby avoiding the end of the bendable display module 1 from appearing Out of a straight line.

Further, the sliding structure 5 is a sliding rod 11.

Further, the middle frame 2 has an extension arm 6 extending toward the side frame 3, and the arc adjustment structure is provided at an end of the extension arm 6 close to the side frame 3.

It can be seen from the above description that the arrangement of the arc adjustment structure close to the side frame 3 can make the sliding of the side frame 3 more sensitive, reduce the hysteresis of the angle change at the end of the bendable display module 1, and help further enhance the bendable display module 1. The bending effect.

Further, a first handle 7 is provided on the extension arm 6.

It can be seen from the above description that the arrangement of the first handle 7 is convenient for the user to carry and install the fixed-arc structure.

Further, the plane of the center line of the arc-shaped slot 4 is perpendicular to the display surface of the display screen.

It can be seen from the above description that when the side frame 3 is sliding, the display surface of the display screen will not be distorted.

Further, the arc adjustment structure further includes a first connecting plate 8 provided on the middle frame 2 and a second connecting plate 9 provided on the side frame 3. The arc-shaped groove 4 is provided on the first connecting plate 8, and the sliding structure 5 Connected to the second connecting plate 9.

It can be seen from the above description that the connecting structure of the middle frame 2 and the side frame 3 is simple, which is convenient for processing and assembly.

Further, the sliding structure 5 includes a second handle 10 and a sliding rod 11. The second handle 10 is rotatably connected to the first connecting plate 8, and the second handle 10 is fixed to the second connecting plate 9 by a sliding rod 11 passing through the arc-shaped groove 4 For connection, the first connecting plate 8 and the second connecting plate 9 are coordinated and guided by a guiding device.

It can be seen from the above description that the lever principle enables the second handle 10 to be set up so that the second handle becomes a fulcrum when the user uses the first handle to slide the side frame 3, which saves effort, which is beneficial to enhance the user experience.

Further, the guide device includes a boss 12 provided on the second connecting plate 9 and an arc-shaped sliding groove 13 provided on the first connecting plate 8, and the boss 12 is slidably arranged in the arc-shaped sliding groove 13.

Further, the arc-shaped groove 4 is connected to the arc-shaped sliding groove 13, and the sliding rod 11 is connected to the boss 12 through the arc-shaped groove 4.

It can be seen from the above description that the guide device can make the side frame 3 slide more stably and smoothly.

Further, the second handle 10 is provided with a locking mechanism. The locking mechanism includes a lock rod 14 which penetrates the arc-shaped groove 4 to connect to the second connecting plate 9. The lock rod 14 is slidably arranged along the arc-shaped groove 4, and the second handle 10 A movable groove 15 is provided on the upper part, and the lock rod 14 is slidably arranged along the movable groove 15.

It can be seen from the above description that the locking mechanism can lock the relative positional relationship between the middle frame 2 and the side frame 3, which is beneficial to ensure the working stability of the display screen.

Further, the second handle 10 has a concave shape, and at least one end of the second handle 10 is provided with the locking mechanism.

It can be seen from the above description that the second handle 10 has a large holding area, which is convenient for the user to operate.

Further, the locking mechanism further includes a pad 16 sleeved on the lock lever 14 and a handle 17 with a cam portion. The handle 17 is rotatably connected to the lock lever 14, and the cam portion of the handle 17 abuts the pad 16 to make the pad 16 16 presses the first connecting plate 8.

From the above description, it can be seen that the working principle of the locking mechanism is simple and the working stability is good. Turning the handle can make the cushion block 16 press against the first connecting plate 8, forcing the first connecting plate 8 and the second connecting plate 9 to hold together tightly, thereby preventing the first and second connecting plates from rotating unexpectedly to achieve The purpose of locking the middle frame 2 and the side frame 3. In addition, the cushion block 16 as a buffer component can fill up the errors caused by processing, can reduce the processing accuracy requirements of the middle frame 2 and the side frame 3, and help reduce the manufacturing cost of the fixed-arc structure.

Further, the cushion block 16 includes a pressing piece 18 and a pressing piece 19 that are in contact with each other. The pressing piece 19 abuts the cam portion of the handle 17, and the pressing piece 18 presses the first connecting plate 8.

It can be seen from the above description that the pressing member 18 and the pressing member 19 can be made of materials of different materials, which is beneficial to prolong the service life of the cushion block 16. For example, the material of the pressing member 18 is PUM polyurethane glue, and the material of the pressing member 19 is stainless steel.

Further, the first connecting plate 8 has a plurality of teeth 20 arranged along the arc groove, and the teeth 20 are used to resist the spacer 16.

It can be seen from the above description that the arrangement of the teeth 20 can make the locking effect of the locking mechanism more stable.

Furthermore, the first connecting plate 8 is provided with an elastic positioning member 21, and the second connecting plate 9 is provided with a plurality of positioning holes that cooperate with the elastic positioning member 21.

It can be seen from the above description that the setting of the elastic positioning member 21 can remind the user of the sliding angle of the side frame 3 relative to the middle frame 2, which is convenient for the user to operate and is beneficial to enhance the user experience.

Further, the arc adjustment structure is symmetrically arranged with respect to the center line of the middle frame 2 into two groups.

The display screen includes a bendable display module 1 and the above-mentioned fixed-arc structure. The bendable display module 1 is arranged on the fixed-arc structure.

It can be seen from the above description that this display screen is an adjustable curved display screen in the true sense and has an excellent curved display effect.

Example one

1 to FIG. 5, the first embodiment of the present invention is: as shown in FIG. 1, a display screen includes a bendable display module 1 and a fixed arc structure, and the bendable display module 1 is set at a fixed arc structure. Arc structure.

1 and 2, the fixed-arc structure includes a middle frame 2 and side frames 3 on both sides thereof. The middle frame 2 and the side frames 3 are slidingly connected by an arc adjustment structure, and the arc adjustment structure includes a connection with the middle frame 2. The arc-shaped groove 4 and the sliding structure 5 connected with the side frame 3, the center line of the arc-shaped groove 4 lies in a plane perpendicular to the display surface of the display screen, and the sliding structure 5 drives the side frame 3 when sliding in the arc-shaped groove 4 Move, so that the movement trajectory of the side frame 3 is in an arc shape. The two side frames 3 are arranged symmetrically with respect to the center line of the middle frame 2. It is easy to understand that the arc adjustment structure is arranged symmetrically with respect to the center line of the middle frame 2 into two groups.

Specifically, the side frame 3 is also provided with a connecting area (not shown) for connecting the ends of the bendable display module 1. When the side frame 3 slides relative to the middle frame 2, the moving track of the connecting area is in an arc shape. In this embodiment, the side frame 3 is elongated, and the connecting area is arranged along the length direction of the side frame 3. There is a row of connecting parts that cooperate with the bendable display module 1 in the connecting area. The connecting parts may be magnetic attractors. In this way, the end of the bendable display module 1 can be allowed to appear relative to the side frame 3 Slight displacement to prevent the side frame 3 from excessively pulling the bendable display module 1 during the sliding process, causing the bendable display module 1 to be damaged. At the same time, it can reduce the processing accuracy requirements of the fixed-arc structure, which is beneficial to control the fixed-arc structure manufacturing cost.

The movement trajectory line of the side frame 3 and the center line of the arc-shaped groove 4 are co-centered. Preferably, the arc-shaped groove 4 is a circular arc groove. In this way, the movement trajectory line of the side frame 3 is similar to a circular arc, and the display mold can be bent. The group 1 can approximate a regular circle, thereby further improving the bending effect and curved surface display effect of the bendable display module 1.

As shown in FIG. 2, further, the middle frame 2 has an extension arm 6 extending toward the side frame 3, the arc adjustment structure is provided at one end of the extension arm 6 close to the side frame 3, and a first handle 7 is provided on the extension arm 6. It is easy to understand that the extension arm 6 and the main body part of the middle frame 2 can be either an integrated structure or a split structure connected by a first connecting member. The integral structure of the extension arm 6 and the main body of the middle frame 2 can reduce mold opening and save cost.

2 to 5, in this embodiment, the arc adjustment structure further includes a first connecting plate 8 provided on the middle frame 2 and a second connecting plate 9 provided on the side frame 3, and the arc-shaped slot 4 is provided in On the first connecting plate 8, the sliding structure 5 is connected to the second connecting plate 9. Specifically, in the arc adjustment structure, the number of the first connecting plate 8 and the number of the second connecting plate 9 are two respectively, and the two second connecting plates 9 are both located between the two first connecting plates 8. The first connecting plates 8 are respectively connected to the extension arm 6, and the two second connecting plates 9 are connected by a connecting frame. The connecting frame is connected to the side frame 3. It is easy to understand that the connecting frame and the side frame 3 can be It is a one-piece structure, or a split structure connected by a second connector. In the same way, the first connecting plate 8 and the extension arm 6 may be an integral structure, or may be a split structure connected by a third connecting member.

Move the arc-adjusting fulcrum from the middle position of the prior art to a position close to the side frame, that is, the setting of the extension arm 6 makes the arc groove and the sliding structure closer to the side frame, that is, the arc-adjusting fulcrum is toward both sides of the screen. The module between the arc-adjusting fulcrum and the side frame will obtain greater bending when the arc-shaped groove and sliding structure move. The bending of the module located between the arc-adjusting positions Smaller, which can form a better arc surface.

The sliding structure 5 includes a second handle 10 and a sliding rod 11. The second handle 10 is rotatably connected to the first connecting plate 8, and the second handle 10 is fixedly connected to the second connecting plate 9 through the sliding rod 11 passing through the arc-shaped groove 4. A connecting plate 8 and a second connecting plate 9 are coordinated and guided by a guiding device. The guiding device includes a boss 12 provided on the second connecting plate 9 and an arc-shaped sliding groove 13 provided on the first connecting plate 8. The platform 12 is slidably disposed in the arc-shaped sliding groove 13. Optionally, the arc-shaped groove 4 is connected to the arc-shaped sliding groove 13, and the sliding rod 11 is connected to the boss 12 through the arc-shaped groove 4.

In order to lock the relative position of the middle frame 2 and the side frame 3, the second handle 10 is provided with a locking mechanism. The locking mechanism includes a lock rod 14, which penetrates the arc-shaped slot 4 and is connected to the second connecting plate 9, and the lock rod 14 extends along the arc The groove 4 is slidably arranged, the second handle 10 is provided with an elongated hole-shaped movable groove 15, and the lock rod 14/sliding rod 11 is slidably arranged along the movable groove 15. The center of the center line of the arc-shaped groove 4 is not the rotational connection point of the second handle 10 and the first connecting plate 8, therefore, the provision of the movable groove 15 is particularly necessary.

3 and 4, in detail, the second handle 10 has a concave shape, and at least one end of the second handle 10 is provided with the locking mechanism. When only one end of the second handle 10 is provided with a locking mechanism, one of the two sliding rods 11 in the above-mentioned arc adjustment structure can be used as the lock rod 14; when both ends of the second handle 10 are provided with a locking mechanism At this time, the two sliding rods 11 in the above-mentioned arc adjustment structure can be used as the lock rod 14; effect.

3 to 5, in more detail, the locking mechanism also includes a cushion block 16 sleeved on the lock lever 14 and a handle 17 with a cam. The handle 17 is rotatably connected to the lock lever 14, and the cam of the handle 17 The part abuts the cushion block 16 so that the cushion block 16 presses the first connecting plate 8. In order to prolong the service life of the cushion block 16, the cushion block 16 includes a pressing piece 18 and a pressing piece 19 that are in contact with each other. The pressing piece 19 is in contact with the cam portion of the handle 17, and the pressing piece 18 presses the first connecting plate 8. Yes, the pressing member 18 and the pressing member 19 are fixedly connected together. Preferably, a spring is sleeved on the lock rod 14 to drive the cushion block 16 to keep in contact with the cam portion, so as to prevent the cushion block 16 from unintended shaking causing abnormal noise, which is beneficial to enhance user experience.

In order to ensure the stability of the locking mechanism, the first connecting plate 8 has a plurality of teeth 20 arranged along the arc groove. The teeth 20 are used to resist the spacer 16 to increase the first connecting plate 8 and the pressing member. The friction between 18.

In order to improve the operating feel of the fixed arc structure and prompt the degree of change of the arc, the first connecting plate 8 is provided with an elastic positioning member 21, and the second connecting plate 9 is provided with a plurality of positioning holes that cooperate with the elastic positioning member 21. The elastic positioning member 21 may have a glass bead limiting structure.

The adjustment process of the fixed arc structure of this embodiment is briefly described as follows: unlock the locking mechanism, push the second handle 10 to drive the side frame 3 to slide along the arc line relative to the middle frame 2, and the slide bar 11/lock bar 14 is When the arc groove 4 slides, it also slides along the movable groove 15 on the second handle 10. When the side frame 3 slides to a predetermined position, the user turns the handle 17 so that the cam portion presses the pad 16 and the pad 16 presses down At the same time, the first connecting plate 8 and the lock rod 14 will also pull up the second connecting plate 9, so that the first and second connecting plates can be tightly held together, thereby completing the adjustment and locking of the fixed arc structure.

In summary, in the fixed arc structure and display screen provided by the present invention, the two ends of the curved screen formed by bending the fixed arc structure can bend an arc, thereby obtaining a true curved surface, which greatly improves The bending effect effectively improves the curved display effect of the display screen.

The above are only the embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent transformations made using the content of the description and drawings of the present invention, or directly or indirectly applied in related technical fields, are included in the same reasoning. Within the scope of patent protection of the present invention.

Claims

The fixed-arc structure is characterized in that it includes a middle frame and side frames located on both sides thereof, the middle frame and the side frame are slidingly connected by an arc adjustment structure, and the arc adjustment structure includes an arc-shaped groove connected with the middle frame and a side frame connected with the side frame. Sliding structure. When the sliding structure slides in the arc-shaped groove, it drives the side frame to move, so that the movement track of the side frame is in an arc shape.
The fixed arc structure according to claim 1, characterized in that: the side frame is also provided with a connection area for connecting the ends of the bendable display module, and when the side frame slides relative to the middle frame, the movement track of the connection area is arc.
The fixed-arc structure according to claim 1, wherein the moving trajectory line of the side frame and the center line of the arc-shaped groove are co-circular.
The fixed arc structure according to claim 1, wherein the sliding structure is a sliding rod.
The fixed arc structure according to claim 1, wherein the middle frame has an extension arm extending toward the side frame, and the arc adjustment structure is provided at an end of the extension arm close to the side frame.
The fixed arc structure according to claim 5, wherein the extension arm is provided with a first handle.
The fixed arc structure according to claim 1, wherein the plane of the center line of the arc groove is perpendicular to the display surface of the display screen.
The fixed-arc structure according to claim 1, wherein the arc-adjusting structure further comprises a first connecting plate arranged on the middle frame and a second connecting plate arranged on the side frame, and the arc-shaped groove is arranged on the first connecting plate. On the board, the sliding structure is connected to the second connecting board.
The fixed arc structure according to claim 8, wherein the sliding structure comprises a second handle and a sliding rod, the second handle is rotatably connected with the first connecting plate, and the second handle is connected to the second handle through the sliding rod penetrating the arc groove. The connecting plate is fixedly connected, and the first connecting plate and the second connecting plate are matched and guided by a guiding device.
The fixed-arc structure according to claim 9, wherein the guide device comprises a boss provided on the second connecting plate and an arc-shaped sliding groove provided on the first connecting plate, and the boss is slidably arranged on the arc-shaped sliding groove. In the slot.
The fixed-arc structure according to claim 10, wherein the arc-shaped groove is connected to the arc-shaped sliding groove, and the sliding rod is connected to the boss through the arc-shaped groove.
The fixed arc structure according to claim 9, characterized in that: the second handle is provided with a locking mechanism, the locking mechanism includes a lock rod, the lock rod penetrates the arc-shaped groove and is connected to the second connecting plate, and the lock rod is slidably arranged along the arc-shaped groove , The second handle is provided with a movable groove, and the lock rod is slidably arranged along the movable groove.
The fixed arc structure according to claim 12, wherein the second handle has a concave shape, and at least one end of the second handle is provided with the locking mechanism.
The fixed arc structure according to claim 12, characterized in that: the locking mechanism further comprises a pad sleeved on the lock rod and a handle with a cam part, the handle is rotatably connected with the lock rod, and the cam part of the handle is in contact with the pad Block so that the cushion block presses the first connecting plate.
The fixed-arc structure according to claim 14, wherein the cushion block comprises a pressing member and a pressing member that are in contact with each other, the pressing member is in contact with the cam portion of the handle, and the pressing member is pressed against the first connecting plate.
The fixed-arc structure according to claim 14, wherein the first connecting plate has a plurality of teeth arranged along the arc groove, and the teeth are used to resist the spacer.
The fixed arc structure according to claim 8, wherein the first connecting plate is provided with an elastic positioning member, and the second connecting plate is provided with a plurality of positioning holes that cooperate with the elastic positioning member.
The fixed arc structure according to any one of claims 1-17, wherein the arc adjustment structure is symmetrically arranged in two groups with respect to the center line of the middle frame.
The display screen includes a bendable display module, and is characterized in that it further comprises the fixed arc structure according to any one of claims 1-18, and the bendable display module is arranged on the fixed arc structure.