Modular LED display screen

Abstract

The application relates to the technical field of display screens, in particular to a modular LED display screen. The modular LED display screen comprises a frame plate, sliding groove frames are fixedly connected to four corners of the frame plate, top seats are slidably connected in the two sliding groove frames at the upper end, fixed rods are fixedly connected to the two top seats, bases are fixedly connected to the lower ends of the two fixed rods, cylinders are sleeved on the two fixed rods, two clockwork springs are fixedly connected between the cylinders and the corresponding fixed rods, and the two ends of a flexible LED display screen are fixedly connected to the two cylinders. The two ends of the frame plate are fixedly connected with side frames, a guide rod is fixedly connected between the two side frames, the two top seats are slidably connected to the two ends of the guide rod, compression springs are sleeved on the two ends of the guide rod, and the two ends of the compression springs are fixedly connected with the top seats and the side frames. The beneficial effect is that the area of the flexible LED display screen can be adjusted according to requirements, and the flexible LED display screen can be quickly and conveniently unfolded and used.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more specifically to a modular LED display screen. Background Technology

[0002] Flexible transparent displays are a new type of LED display technology that has developed rapidly in recent years. Due to their strong flexibility, thinness and space-saving design, they are widely used in glass, shop windows, glass curtain walls and other locations.

[0003] A Chinese patent application (application number 2018116382324) discloses a flexible LED display screen, comprising a display section and a control section. The display section includes several transparent flexible screens and several flexible light-transmitting plates. With the display screen's playback surface as a reference surface, the transparent flexible screens and flexible light-transmitting plates are arranged perpendicular to the reference surface, overlapping each other, and filled with an insulating lubricant. The transparent flexible screens internally encapsulate a transparent conductive film and several LED chips, with the light-emitting surface of the LED chips facing the reference surface. A driving interface is connected to the transparent conductive film, and the driving interface is connected to the control section. The control section includes a main control block and several sub-control blocks. The transparent flexible screens are connected to the sub-control blocks through the driving interface, and the sub-control blocks are connected to the main control block. This invention can display three-dimensional images with a strong sense of depth and high user comfort. The screen is flexible and has a wide range of applications. However, this display screen cannot adjust the unfolded area of ​​the flexible LED display screen according to needs. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides a modular LED display screen, which has the advantage of being able to adjust the area of ​​the flexible LED display screen to be used according to needs, and is quick and convenient to use.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] A modular LED display screen includes a frame, with sliding brackets fixed at each of the four corners of the frame. Top seats are slidably connected to the two upper sliding brackets, and fixing rods are fixed to the two top seats. Bases are fixed to the lower ends of the two fixing rods, and the two bases are slidably connected to the two lower sliding brackets. Each fixing rod has a cylinder fitted on it, and two spring-loaded springs are fixed between the cylinders and the corresponding fixing rods. The two ends of the flexible LED display screen are fixed to the two cylinders respectively.

[0007] Both ends of the frame are fixedly connected to side frames, and a guide rod is fixedly connected between the two side frames. Two top seats are slidably connected to the two ends of the guide rod, and both ends of the guide rod are fitted with compression springs. The two ends of the compression springs are fixedly connected to the top seats and the side frames, respectively.

[0008] A top block is fixedly connected to the frame plate, and a dual-axis motor is fixedly connected to the top block. Both output shafts of the dual-axis motor are connected to lead screws via couplings. Push blocks are threadedly connected to both lead screws. The two push blocks are slidably connected to both ends of the guide rod, and both push blocks are located between the two top seats.

[0009] A bracket is inserted into the middle of the frame, and a round roller is fixed to the front end of the bracket. Attached Figure Description

[0010] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0011] Figure 1 A schematic diagram of a modular LED display screen with a flexible LED display installed on it.

[0012] Figure 2 A schematic diagram of the overall structure of a modular LED display screen. Figure 1 ;

[0013] Figure 3 A schematic diagram of the overall structure of a modular LED display screen. Figure 2 ;

[0014] Figure 4 This is a structural diagram of the front of the frame.

[0015] Figure 5 This is a structural schematic diagram of the fixed rod;

[0016] Figure 6 This is a schematic diagram of a clockwork spring.

[0017] Figure 7 This is a schematic diagram of the cylindrical structure;

[0018] Figure 8 This is a schematic diagram of the structure of the limiting ring II;

[0019] Figure 9 This is a schematic diagram of the top seat structure;

[0020] Figure 10 This is a schematic diagram of the side roller structure;

[0021] Figure 11 This is a schematic diagram of the structure on the back.

[0022] Figure 12 This is a schematic diagram of the articulated arm.

[0023] In the diagram: Frame plate 101; Slide rail frame 102; Top block 104; Flexible LED display screen 105; Fixed rod 201; Top seat 202; Base 203; Spring 204; Limiting ring I 205; Cylinder 206; Compression spring 207; Insert frame 301; Circular roller 302; Limiting ring II 303; Hinge arm 304; Hinge seat 305; Trapezoidal rod 306; Screw 307; Guide rod 401; Side frame 402; Lead screw 403; Dual-axis motor 404; Push block 405; Rotating shaft 501; Shaft frame 502; Side roller 503. Detailed Implementation

[0024] like Figures 1 to 7 As shown:

[0025] A modular LED display screen includes a frame plate 101. Slide rails 102 are fixedly connected to the four corners of the frame plate 101. Top seats 202 are slidably connected to the two upper slide rails 102. Fixing rods 201 are fixedly connected to the two top seats 202. Bases 203 are fixedly connected to the lower ends of the two fixing rods 201. The two bases 203 are slidably connected to the two lower slide rails 102. Cylinders 206 are sleeved on the two fixing rods 201. Two spring-loaded springs 204 are fixedly connected between the cylinders 206 and the corresponding fixing rods 201. The two ends of the flexible LED display screen 105 are fixedly connected to the two cylinders 206 respectively.

[0026] Drill holes at the four corners of the frame plate 101 and insert screws to fix the frame plate 101 in the designated position; the top seat 202 and the base 203 can both slide in the corresponding slide rail 102, so that the two fixed rods 201 can slide closer or further apart; under normal conditions, under the elastic force of the spring 204, the two fixed rods 201 are in a state of close proximity, at which time the flexible LED display screen 105 is rolled up on the two cylinders 206. When the two top seats 202 are simultaneously subjected to external force and slide away from each other, the distance between the two fixed rods 201 increases, the two cylinders 206 rotate, the spring 204 on both sides is tightened, so that the flexible LED display screen 105 is unfolded for use. By adjusting the distance between the two fixed rods 201, the usable area of ​​the unfolded flexible LED display screen 105 can be controlled, so that the usable area of ​​the unfolded flexible LED display screen 105 can be adjusted according to the needs, making unfolding and use quick and convenient.

[0027] like Figure 9 As shown:

[0028] Both ends of the frame plate 101 are fixedly connected to side frames 402, and a guide rod 401 is fixedly connected between the two side frames 402. Two top seats 202 are slidably connected to the two ends of the guide rod 401, and both ends of the guide rod 401 are fitted with compression springs 207. The two ends of the compression springs 207 are fixedly connected to the top seat 202 and the side frame 402 respectively.

[0029] A top block 104 is fixedly connected to the frame plate 101, and a dual-axis motor 404 is fixedly connected to the top block 104. Both output shafts of the dual-axis motor 404 are connected to lead screws 403 via couplings. Push blocks 405 are threadedly connected to both lead screws 403. The two push blocks 405 are slidably connected to both ends of the guide rod 401, and both push blocks 405 are located between the two top seats 202.

[0030] Two compression springs 207 exert an inward pushing force on the two top seats 202, causing the two fixed rods 201 to be in a state of close proximity under normal conditions. At this time, the clock springs 204 on both sides are also in a relaxed state, and the flexible LED display screen 105 is wound up on the two cylinders 206. When the dual-axis motor 404 starts, it drives the two lead screws 403 to rotate. The two lead screws 403 drive the two push blocks 405 to move away from each other. The two push blocks 405 push the top seats 202 to both sides. The two top seats 202 drive the two fixed rods 201 to move away from each other. The two compression springs 207 are compressed, and the two cylinders... When 206 rotates, the springs 204 on both sides are tightened, and the flexible LED display 105 is unfolded for use. When it is necessary to rewind the flexible LED display 105, the dual-axis motor 404 is controlled to start in reverse, driving the two push blocks 405 to move closer to each other and no longer pressing the two top seats 202. Under the elastic force of the compression spring 207, the two top seats 202 and the two fixed rods 201 are driven to move closer to each other. Under the elastic force of the spring 204, the two cylinders 206 are driven to rotate in the opposite direction, thereby realizing the automatic rewinding of the flexible LED display 105.

[0031] like Figure 8 As shown:

[0032] A bracket 301 is inserted into the middle of the frame plate 101, and a round roller 302 is fixed to the front end of the bracket 301.

[0033] When the insert 301 drives the roller 302 to slide forward, the roller 302 will push forward to the middle of the flexible LED display 105, thereby making the flexible LED display 105 form a V-shape, thus transforming the flat flexible LED display 105 into a V-shape, switching one side to two sides for display and use, so that people on both sides can also see the information on the flexible LED display 105.

[0034] When the insert 301 slides backward and is retracted into the frame plate 101, the roller 302 does not contact the flexible LED display screen 105. At this time, the flexible LED display screen 105 switches to a flat form for use.

[0035] like Figure 10 As shown:

[0036] Two side rollers 503 are symmetrically mounted on the insert 301;

[0037] When the axes of the two side rollers 503 are coplanar with the axis of the circular roller 302, the V-shaped flexible LED display screen 105 is transformed into a trapezoidal shape, thereby allowing the flexible LED display screen 105 to switch from two sides to three sides for display and use. At the same time, it makes it easier for people on the front and sides to see the information on the flexible LED display screen 105, increasing the surface area available for display.

[0038] like Figure 10 As shown:

[0039] Two rotating shafts 501 are symmetrically rotatably connected to the insert 301. Both ends of the two side rollers 503 are fixedly connected to shaft brackets 502. The four shaft brackets 502 are respectively fixedly connected to the two ends of the two rotating shafts 501. A reduction motor capable of driving the two rotating shafts 501 to rotate is fixedly connected to the insert 301.

[0040] When the geared motor starts, it can drive the rotating shaft 501 to rotate. The rotating shaft 501 drives the side roller 503 to rotate around the axis of the rotating shaft 501, so that the side roller 503 can be stored in the insert 301 without contacting the flexible LED display screen 105. At this time, the flexible LED display screen 105 switches to a V-shaped shape, so that the flexible LED display screen 105 can be used in a variety of shapes. The shape of the flexible LED display screen 105 can be adjusted according to the needs.

[0041] like Figures 11 to 12 As shown:

[0042] Two trapezoidal rods 306 are symmetrically fixed to the back of the frame plate 101. Each trapezoidal rod 306 is slidably connected to a hinge seat 305. Two hinge arms 304 are symmetrically hinged to the insert frame 301. The two hinge arms 304 are respectively hinged to the two hinge seats 305. Two drive motors are fixed to the insert frame 301. Each output shaft of the two drive motors is connected to a screw 307 through a coupling. The two hinge seats 305 are respectively threaded to the two screws 307.

[0043] Two drive motors start and drive two screws 307 to rotate. The two screws 307 drive two hinge seats 305 to move closer and then further apart. The two hinge seats 305 drive the insert frame 301 to move forward or backward through two hinge arms 304, thereby controlling the extension or retraction of the circular roller 302.

[0044] like Figure 4 As shown:

[0045] A storage slot 103 is provided in the middle of the shelf 101;

[0046] When the two side rollers 503 are stored inside the insert 301, the insert 301 drives the round roller 302 to move backward, and the two gathered side rollers 503 will be stored in the storage groove 103.

[0047] like Figures 7 to 8 As shown:

[0048] Both ends of the roller 302 are fixedly connected to limit rings II 303; both ends of the two cylinders 206 are fixedly connected to limit rings I 205.

[0049] The limiting rings I 205 on the two cylinders 206 limit the flexible LED display screen 105 from both sides in the vertical direction, and the two limiting rings II 303 limit the flexible LED display screen 105 from the middle, thereby preventing the flexible LED display screen 105 from shifting when it is rolled up or unfolded.

Claims

1. A modular LED display screen, characterized in that, The device includes a frame (101), with slide rails (102) fixedly connected to each of the four corners of the frame (101). Top seats (202) are slidably connected to the two slide rails (102) at the upper end. Fixed rods (201) are fixedly connected to the two top seats (202). Bases (203) are fixedly connected to the lower ends of the two fixed rods (201). The two bases (203) are slidably connected to the two fixed rods (201) at the lower end of the two slide rails (102). Cylinders (206) are fitted on the two fixed rods (201). Two spring-loaded springs (204) are fixedly connected between the cylinders (206) and the corresponding fixed rods (201). The two ends of the flexible LED display screen (105) are fixedly connected to the two cylinders (206).

2. The display screen according to claim 1, characterized in that, Both ends of the frame plate (101) are fixedly connected to side frames (402), and a guide rod (401) is fixedly connected between the two side frames (402). Two top seats (202) are slidably connected to the two ends of the guide rod (401). Both ends of the guide rod (401) are fitted with compression springs (207), and the two ends of the compression springs (207) are fixedly connected to the top seats (202) and the side frames (402) respectively.

3. The display screen according to claim 2, characterized in that, A top block (104) is fixedly connected to the frame plate (101), and a dual-axis motor (404) is fixedly connected to the top block (104). Both output shafts of the dual-axis motor (404) are connected to lead screws (403) via couplings. Push blocks (405) are threadedly connected to both lead screws (403). The two push blocks (405) are slidably connected to both ends of the guide rod (401), and both push blocks (405) are located between the two top seats (202).

4. The display screen according to claim 3, characterized in that, A bracket (301) is inserted in the middle of the frame plate (101), and a round roller (302) is fixed to the front end of the bracket (301).

5. The display screen according to claim 4, characterized in that, Two side rollers (503) are symmetrically installed on the insert (301).

6. The display screen according to claim 5, characterized in that, The insert (301) is symmetrically rotatably connected to two rotating shafts (501), and the two ends of the two side rollers (503) are fixedly connected to shaft brackets (502). The four shaft brackets (502) are respectively fixedly connected to the two ends of the two rotating shafts (501). A reduction motor capable of driving the two rotating shafts (501) to rotate is fixedly connected to the insert (301).

7. The display screen according to claim 6, characterized in that, Two trapezoidal rods (306) are symmetrically fixed to the back of the frame plate (101). Each trapezoidal rod (306) is slidably connected to a hinge seat (305). Two hinge arms (304) are symmetrically hinged to the insert (301). The two hinge arms (304) are respectively hinged to the two hinge seats (305). Two drive motors are fixed to the insert (301). Each of the output shafts of the two drive motors is connected to a screw (307) through a coupling. The two hinge seats (305) are respectively threaded to the two screws (307).

8. The display screen according to claim 1, characterized in that, A storage slot (103) is provided in the middle of the shelf (101).

9. The display screen according to claim 4, characterized in that, Both ends of the roller (302) are fixed with limit rings II (303).

10. The display screen according to claim 1, characterized in that, Both ends of the two cylinders (206) are fixed with limit rings I (205).

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