A flexible LCD display screen with a winding function and its operation method

Abstract

The present invention relates to the technical field of LCD display screens, and particularly relates to a flexible LCD display screen with a winding function and an operation method thereof. The present invention provides such a flexible LCD display screen with a winding function, which includes a guiding frame, a sliding frame, a first winding roller, a flexible LCD display screen, an offset compensation component, etc. The sliding frames are slidably connected to the guiding frame, and a first winding roller for winding the flexible LCD display screen is rotatably connected between the two sliding frames. The flexible LCD display screen is wound around the first winding roller, and an offset compensation component is provided inside the housing. In the present invention, by controlling the electric push rod to drive the retractable cover to move to the right, and at the same time controlling the reduction motor and the gearbox to drive the first winding roller to rotate, the retractable cover pulls the flexible LCD display screen to the right, and the rollers will move downward along the inclined surface of the support frame, thereby driving the first winding roller and the flexible LCD display screen to move downward. In this way, the bottom of the flexible LCD display screen can be kept in the horizontal direction to prevent damage.

Description

Technical Field

[0001] The present invention relates to the technical field of LCD display screens, and in particular to a flexible LCD display screen with a winding function and an operation method thereof. Background Art

[0002] An LCD display screen refers to a liquid crystal display screen, which has the advantages of low power consumption, long service life, and low cost. Among them, a flexible LCD display screen can be deformed and bent. Therefore, the flexible LCD display screen can be wound up, which is convenient for storage and carrying. However, when manually winding up the flexible LCD display screen, it is difficult to wind up the flexible LCD display screen neatly, and wrinkles are likely to occur on the surface. Moreover, when the flexible LCD display screen is collided, it is easy to be worn, affecting the use performance.

[0003] A Chinese patent with the patent publication number CN111724686B discloses a flexible LED display screen, which includes a winding bin; a first shaft is rotatably connected in the winding bin, a roller is fixedly connected to the outer circumference of the first shaft through a bracket, a display screen is wound and fixed on the outer circumference of the roller, and one end of the display screen far from the outer circumference of the first shaft extends to the outside of the winding bin through an inlet and outlet opened at the top of the winding bin; a limiting rod is fixedly connected to one end of the display screen located outside the winding bin, and the limiting rod is used to prevent the display screen from being overly wound; an elastic cushion layer is arranged on one side of the display screen, and the cushion layer is wound on the roller together with the display screen.

[0004] The above patent winds up the display screen through a roller. However, when the display screen is pulled out for use, the number of turns of the display screen wound on the roller will decrease, and the guide roller will limit the front end of the display screen, resulting in a change in the angle between the pulled-out section and the wound section of the display screen, causing the pulled-out section of the display screen to deviate downward from the horizontal direction, so that the display screen will rub against the inner wall of the winding bin, causing damage and affecting the use performance of the display screen. Summary of the Invention

[0005] In order to overcome the drawback that when the existing technology pulls out and uses a flexible LCD display screen, the display screen will rub against the inner wall of the winding bin, causing damage and affecting the use performance of the display screen, the technical problem is: to provide a flexible LCD display screen with a winding function and an operation method thereof that can prevent the display screen from being damaged.

[0006] The technical solution of the present invention is: a flexible LCD display screen with a winding function, which includes a housing, a guiding frame, a sliding frame, a first winding roller, a flexible LCD display screen, a threaded rod, a driving component, an offset compensation component, and a retracting and unfolding mechanism. Two guiding frames are connected to the inner bottom of the housing. The guiding frames are both slidably connected with sliding frames. A first winding roller for winding the flexible LCD display screen is rotatably connected between the two sliding frames. The flexible LCD display screen is wound around the first winding roller. Threaded rods are connected to both ends of the first winding roller. The driving component is used to drive the first winding roller to rotate. An offset compensation component is provided inside the housing. The retracting and unfolding mechanism is used to retract and unfold the flexible LCD display screen.

[0007] Furthermore, the driving component includes a reduction motor and a gearbox. Gearboxes are connected to the mutually remote sides of the sliding frames. Reduction motors for driving the first winding roller to wind the flexible LCD display screen are connected to the mutually remote sides of the gearboxes. The output shaft of the reduction motor is connected to the input shaft of the gearbox. The output shaft of the gearbox is connected to the first winding roller.

[0008] Furthermore, the offset compensation component includes a limiting block, a support frame, a nut, and a roller. Limiting blocks are connected to the mutually remote sides of the sliding frames. Support frames are connected to the guiding frames. The upper part of the support frame is an inclined surface. Nuts are threadedly connected to the threaded rods. The nuts are located between the support frame and the limiting block. Rollers are rotatably connected to the nuts. The rollers are all in contact with the adjacent support frame.

[0009] Furthermore, the retracting and unfolding mechanism includes an electric push rod, a telescopic frame, and a retracting and unfolding cover. The telescopic frame is installed on the inner bottom of the housing. An electric push rod for controlling the pulling out of the flexible LCD display screen is connected to one side of the telescopic frame. A retracting and unfolding cover is slidably connected to the side of the telescopic frame away from the electric push rod. The retracting and unfolding cover is connected to the end of the flexible LCD display screen away from the first winding roller. The retracting and unfolding cover is in sealed contact with the housing.

[0010] Furthermore, a support mechanism is also included. The support mechanism includes a support block, a second winding roller, a torsion spring, and a support backplate. Two support blocks are connected to the inner bottom of the housing. A second winding roller is rotatably connected between the two support blocks. The second winding roller is parallel to the first winding roller. Torsion springs are connected between the second winding roller and the support blocks. A support backplate for supporting the flexible LCD display screen is wound around the second winding roller. The end of the support backplate away from the second winding roller is connected to the retracting and unfolding cover.

[0011] Further, it further includes a cleaning mechanism, which includes a fixed block, a liquid storage tank, a sealing cover, a cleaning sponge, and a liquid replenishment control component. A fixed block is connected inside the housing. The fixed block is connected with a liquid storage tank. One end of the liquid storage tank passes through the housing. The liquid storage tank is covered with a sealing cover. A number of liquid replenishment holes are spaced apart on the liquid storage tank. A cleaning sponge for cleaning the flexible LCD display screen is connected to the liquid storage tank. The cleaning sponge contacts the flexible LCD display screen. The liquid replenishment control component is used to control the liquid replenishment amount of the cleaning sponge.

[0012] Further, the liquid replenishment control component includes a connecting block, a first magnet, a compression spring, a stop block, a second magnet, and a sealing block. A number of connecting blocks are spaced and connected to the inner wall of the liquid storage tank. A sealing block is slidably connected between the connecting blocks. The sealing block blocks the liquid replenishment holes. Compression springs are connected between the connecting blocks and the sealing block. Two first magnets are connected to the sealing block. The first magnets are both in contact with the inner wall of the liquid storage tank. Two stop blocks are connected inside the liquid storage tank. The first magnets will contact the adjacent stop blocks. Two second magnets are connected to the retractable cover. The second magnets are both in contact with the liquid storage tank.

[0013] Further, it further includes a limiting mechanism, which includes a connecting frame and a limiting roller. Two connecting frames are connected to the inner bottom of the housing. Two limiting rollers for limiting the support back plate are rotatably connected between the connecting frames. The support back plate passes through between the two limiting rollers.

[0014] The present invention also provides an operation method for a flexible LCD display screen with a winding function, including the following steps: driving the telescopic frame to extend through the electric push rod, so that the retractable cover can pull the flexible LCD display screen to the right. At this time, the threaded rod can be driven to rotate, so that the nuts move towards the mutually separated sides. Under the action of gravity, the flexible LCD display screen will slowly drop a certain height to keep the bottom of the flexible LCD display screen in the horizontal direction.

[0015] The beneficial effects are: 1. The present invention controls the electric push rod to drive the retractable cover to move to the right, and at the same time controls the reduction motor and the gearbox to drive the first winding roller to rotate, so that the retractable cover pulls the flexible LCD display screen to the right. The rollers will move down along the inclined surface of the support frame, thereby driving the first winding roller and the flexible LCD display screen to move down. In this way, the bottom of the flexible LCD display screen can be kept in the horizontal direction to prevent damage.

[0016] 2. The retractable cover of the present invention can pull out the flexible LCD display screen and the support back plate synchronously. The support back plate is located at the bottom of the flexible LCD display screen and plays a supporting role. When the retractable cover moves to the left, the support back plate can be automatically wound through the torsion spring.

[0017] 3. The liquid storage tank of the present invention can hold an appropriate amount of display screen cleaner. When the second magnet moves to the right, the display screen cleaner can flow out from the liquid replenishing hole onto the cleaning sponge, thereby cleaning the flexible LCD display screen. When the second magnet continues to move to the right, the sealing block will block the liquid replenishing hole again to prevent the cleaning sponge from sucking in excessive display screen cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic diagram of the present invention.

[0019] Figure 2 It is a three-dimensional structure schematic diagram of the interior of the present invention.

[0020] Figure 3 It is a three-dimensional structure schematic diagram of the driving component and the offset compensation component of the present invention.

[0021] Figure 4 It is a three-dimensional structure schematic diagram of the driving component and the unfolding and retracting mechanism of the present invention.

[0022] Figure 5 It is a three-dimensional structure schematic diagram of the unfolding and retracting mechanism of the present invention.

[0023] Figure 6 It is a three-dimensional structure schematic diagram of the flexible LCD display screen, the unfolding and retracting cover, the second winding roller, the torsion spring, the support backplate and the limiting mechanism of the present invention.

[0024] Figure 7 It is a three-dimensional structure schematic diagram of the flexible LCD display screen, the unfolding and retracting cover and the cleaning mechanism of the present invention.

[0025] Figure 8 It is a three-dimensional structure schematic diagram of the cleaning mechanism and the second magnet of the present invention.

[0026] Figure 9 It is a three-dimensional structure schematic diagram of the liquid storage tank and the liquid replenishing hole of the present invention.

[0027] Figure 10 It is a three-dimensional structure schematic diagram of the fixing block, the liquid storage tank, the cleaning sponge, the connecting block, the first magnet, the compression spring, the stop block and the sealing block of the present invention.

[0028] Figure 11 It is a three-dimensional structure schematic diagram of the liquid storage tank, the connecting block, the first magnet, the compression spring, the stop block and the sealing block of the present invention.

[0029] In the attached drawing reference numerals: 1 - outer shell, 2 - guide frame, 3 - sliding frame, 4 - first winding roller, 5 - flexible LCD display screen, 6 - threaded rod, 7 - drive assembly, 71 - reduction motor, 72 - gearbox, 8 - offset compensation assembly, 81 - limit block, 82 - support frame, 83 - nut, 84 - roller, 9 - retraction and extension mechanism, 91 - electric push rod, 92 - telescopic frame, 93 - retraction and extension cover, 10 - support mechanism, 101 - support block, 102 - second winding roller, 103 - torsion spring, 104 - support backplate, 11 - cleaning mechanism, 111 - fixed block, 112 - liquid storage tank, 113 - liquid replenishment hole, 114 - sealing cover, 115 - cleaning sponge, 12 - liquid replenishment control assembly, 121 - connecting block, 122 - first magnet, 123 - compression spring, 124 - stop block, 125 - second magnet, 126 - sealing block, 13 - limit mechanism, 131 - connecting frame, 132 - limit roller. Detailed implementation mode

[0030] The present invention will be specifically introduced below in conjunction with the attached drawings and specific embodiments.

[0031] Embodiment 1

[0032] A flexible LCD display screen with a winding function and its operation method, as Figures 1 - 5 shown, includes an outer shell 1, a guide frame 2, a sliding frame 3, a first winding roller 4, a flexible LCD display screen 5, a threaded rod 6, a drive assembly 7, an offset compensation assembly 8 and a retraction and extension mechanism 9. On the right side of the inner bottom of the outer shell 1, guide frames 2 are symmetrically welded front and back. The upper parts of the guide frames 2 are all connected with sliding frames 3 in a sliding manner. A first winding roller 4 is rotatably connected between the two sliding frames 3. When the first winding roller 4 rotates, the flexible LCD display screen 5 can be relaxed, and when the first winding roller 4 rotates in reverse, the flexible LCD display screen 5 can be wound. The flexible LCD display screen 5 is wound around the first winding roller 4. Threaded rods 6 are connected to both front and rear ends of the first winding roller 4. The drive assembly 7 is used to drive the first winding roller 4 to rotate. An offset compensation assembly 8 is arranged inside the outer shell 1, and the retraction and extension mechanism 9 is used to retract and extend the flexible LCD display screen 5.

[0033] As Figures 2 - 4 shown, the drive assembly 7 includes a reduction motor 71 and a gearbox 72. Gearboxes 72 are connected to the mutually remote sides of the sliding frames 3. Reduction motors 71 are bolted to the mutually remote sides of the gearboxes 72. The output shaft of the reduction motor 71 is connected to the input shaft of the gearbox 72, and the output shaft of the gearbox 72 is connected to the first winding roller 4. By means of the reduction motor 71 and the gearbox 72, the first winding roller 4 can be driven to rotate in reverse, so as to wind the flexible LCD display screen 5.

[0034] As Figure 2 and Figure 3As shown, the offset compensation assembly 8 includes a limit block 81, a support frame 82, a nut 83, and a roller 84. Limit blocks 81 are welded to the right parts of the mutually remote sides of the sliding frame 3. Support frames 82 are welded to the middle parts of the guide frames 2. The upper parts of the support frames 82 are inclined planes. Nuts 83 are threadedly connected to the threaded rods 6. The nuts 83 are located between the support frames 82 and the limit blocks 81. Rollers 84 are rotatably connected to the upper parts of the nuts 83. The rollers 84 are all in contact with the adjacent support frames 82. When the rollers 84 move downward along the inclined planes of the support frames 82, they can drive the flexible LCD display screen 5 to move downward, so as to keep the bottom of the flexible LCD display screen 5 in the horizontal direction.

[0035] As Figure 1 , Figure 2 , Figure 4 and Figure 5 shown, the unfolding and folding mechanism 9 includes an electric push rod 91, a telescopic frame 92, and an unfolding and folding cover 93. The telescopic frame 92 is installed at the inner bottom of the housing 1. The left side of the telescopic frame 92 is connected to the electric push rod 91. The right side of the telescopic frame 92 is slidably connected to the unfolding and folding cover 93. By controlling the electric push rod 91, the telescopic frame 92 can be driven to extend, driving the unfolding and folding cover 93 to move to the right, so as to pull out the flexible LCD display screen 5. The upper left part of the unfolding and folding cover 93 is connected to one end of the flexible LCD display screen 5 away from the first winding roller 4. The unfolding and folding cover 93 is in sealed contact with the housing 1.

[0036] Initially, the housing 1 and the unfolding and folding cover 93 keep the flexible LCD display screen 5 in a sealed space, which can protect and dust-proof the flexible LCD display screen 5. When the flexible LCD display screen 5 needs to be used, control the telescopic rod of the electric push rod 91 to shorten, drive the telescopic frame 92 to extend, so as to push the unfolding and folding cover 93 to move to the right. At the same time, by controlling the reduction motor 71 and the gearbox 72, drive the first winding roller 4 and the threaded rod 6 to rotate, so that the first winding roller 4 relaxes the flexible LCD display screen 5. At this time, the unfolding and folding cover 93 can pull the flexible LCD display screen 5 to the right. The limit blocks 81 and the support frames 82 are respectively located on the left and right sides of the nut 83, which can laterally limit the nut 83, so that the threaded rod 6 can drive the nut 83 to move to the mutually remote sides, driving the rollers 84 to move to the mutually remote sides. When the rollers 84 are separated from the support frames 82, due to the action of gravity, the rollers 84 can move downward along the inclined planes of the support frames 82, so as to drive the nut 83, the first winding roller 4, and the flexible LCD display screen 5 to move downward. In this way, when the number of turns of the first winding roller 4 winding the flexible LCD display screen 5 decreases, the first winding roller 4 can adaptively drop a certain height, so as to keep the bottom of the flexible LCD display screen 5 in the horizontal direction and prevent the flexible LCD display screen 5 from being damaged.

[0037] Embodiment 2

[0038] On the basis of Embodiment 1, asFigure 2 and Figure 6 As shown in Figure 2 and Figure 6 , it further includes a support mechanism 10. The support mechanism 10 includes a support block 101, a second winding roller 102, a torsion spring 103, and a support backplate 104. Support blocks 101 are symmetrically welded to the front and rear of the left side of the inner bottom of the housing 1. A second winding roller 102 is rotatably connected between the two support blocks 101. When the second winding roller 102 rotates, it can relax the support backplate 104. When the second winding roller 102 rotates in reverse, it can wind up the support backplate 104. The second winding roller 102 is parallel to the first winding roller 4. Torsion springs 103 are connected between the second winding roller 102 and the support blocks 101. The support backplate 104 is wound around the outside of the second winding roller 102. When the support backplate 104 is pulled out, the support backplate 104 is located at the bottom of the flexible LCD display screen 5, enabling the support backplate 104 to support the flexible LCD display screen 5. The right end of the support backplate 104 is connected to the middle of the left side of the retractable cover 93. When the retractable cover 93 moves to the right, it drives the support backplate 104 to move to the right, thereby driving the second winding roller 102 to rotate, and the torsion spring 103 deforms. In this way, the flexible LCD display screen 5 and the support backplate 104 can be pulled out synchronously. The support backplate 104 is located at the bottom of the flexible LCD display screen 5 and plays a supporting role for the flexible LCD display screen 5, facilitating people to use the flexible LCD display screen 5. When the retractable cover 93 moves to the left, the torsion spring 103 returns to its original state, driving the second winding roller 102 to rotate in reverse, thereby automatically winding up the support backplate 104.

[0039] As Figure 1 、 Figure 2 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10 As shown in ,

[0039] , Figure 1 , Figure 2 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , it further includes a cleaning mechanism 11. The cleaning mechanism 11 includes a fixed block 111, a liquid storage tank 112, a sealing cover 114, a cleaning sponge 115, and a liquid replenishment control component 12. The fixed block 111 is welded to the right side inside the housing 1. The liquid storage tank 112 for loading and taking the display screen cleaner is welded to the left side of the fixed block 111. The front end of the liquid storage tank 112 passes through the housing 1. The sealing cover 114 covers the front side of the liquid storage tank 112. A number of liquid replenishment holes 113 are spaced apart on the left side of the liquid storage tank 112. The cleaning sponge 115 is connected to the left side of the liquid storage tank 112. When the cleaning sponge 115 absorbs the display screen cleaner, the cleaning sponge 115 can clean the flexible LCD display screen 5. The lower side of the cleaning sponge 115 contacts the flexible LCD display screen 5. The liquid replenishment control component 12 is used to control the liquid replenishment amount for the cleaning sponge 115.

[0040] As Figure 2 、 Figure 8 、 Figure 10 and Figure 11As shown, the liquid replenishment control component 12 includes a connecting block 121, a first magnet 122, a compression spring 123, a stop block 124, a second magnet 125 and a sealing block 126. A plurality of connecting blocks 121 are welded at intervals on the right inner wall of the liquid storage tank 112. A sealing block 126 is slidably connected between the connecting blocks 121. The sealing block 126 blocks the liquid replenishment hole 113. Compression springs 123 are connected between the connecting blocks 121 and the sealing block 126. First magnets 122 are symmetrically connected to the front and back of the right side of the sealing block 126. The first magnets 122 are in contact with the inner wall of the liquid storage tank 112. Stop blocks 124 are symmetrically connected to the front and back of the inner bottom of the liquid storage tank 112. When the first magnets 122 move to the right, they will contact the stop blocks 124. Second magnets 125 are connected to both sides of the front and back of the retractable cover 93. The second magnets 125 are in contact with the liquid storage tank 112. When the first magnets 122 move to the right, the display screen cleaner can flow out onto the cleaning sponge 115. When the first magnets 122 continue to move to the right, the sealing block 126 can seal the liquid replenishment hole 113 to prevent the cleaning sponge 115 from sucking in too much display screen cleaner.

[0041] Initially, the first magnets 122 and the second magnets 125 are longitudinally aligned and attract each other. First, open the sealing cover 114, load an appropriate amount of display screen cleaner into the liquid storage tank 112, and then close the sealing cover 114. When the retractable cover 93 moves to the right, it drives the second magnets 125 to move to the right, thereby driving the first magnets 122 and the sealing block 126 to move to the right. The compression springs 123 are compressed, so that the sealing block 126 no longer blocks the liquid replenishment hole 113. The display screen cleaner flows out of the liquid replenishment hole 113 onto the cleaning sponge 115 due to gravity. At this time, the cleaning sponge 115 soaked with the display screen cleaner can clean the flexible LCD display screen 5. When the first magnets 122 contact the stop blocks 124, the stop blocks 124 block the first magnets 122, while the second magnets 125 continue to move to the right, so that the second magnets 125 no longer attract the first magnets 122. The compression springs 123 return to their original state, driving the sealing block 126 and the first magnets 122 to move to the left and reset. The sealing block 126 re-blocks the liquid replenishment hole 113, so that the display screen cleaner no longer flows out, which can prevent the cleaning sponge 115 from sucking in too much display screen cleaner. When the flexible LCD display screen 5 is retracted, the cleaning sponge 115 can clean the flexible LCD display screen 5 again.

[0042] As Figure 2 and Figure 6As shown, it further includes a limiting mechanism 13. The limiting mechanism 13 includes a connecting frame 131 and a limiting roller 132. The left side of the inner bottom of the outer shell 1 is symmetrically welded with connecting frames 131 front and back. Two limiting rollers 132 are rotatably connected between the connecting frames 131. The support carapace 104 passes through between the two limiting rollers 132, enabling the bottom of the support carapace 104 to be in the horizontal direction. When the support carapace 104 is pulled out, the limiting roller 132 can limit the support carapace 104, thereby keeping the bottom of the support carapace 104 in the horizontal direction, and the support carapace 104 can drive the limiting roller 132 to rotate, with a relatively small frictional force, thus reducing the wear degree of the support carapace 104.

[0043] An operation method of a flexible LCD display screen with a winding function includes the following steps: driving the telescopic frame 92 to extend through the electric push rod 91, so that the retractable cover 93 can pull the flexible LCD display screen 5 to the right. At this time, the threaded rod 6 can be driven to rotate, so that the nuts 83 move towards the mutually remote sides. Under the action of gravity, the flexible LCD display screen 5 will slowly drop a certain height to keep the bottom of the flexible LCD display screen 5 in the horizontal direction.

[0044] As described above, only the specific implementation manners of the present invention are provided, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A flexible LCD display screen with a winding function, characterized in that, it includes a housing, a guide frame, a sliding frame, a first winding roller, a flexible LCD display screen, a threaded rod, a driving component, an offset compensation component and a retracting and extending mechanism. Two guide frames are connected to the inner bottom of the housing. The sliding frames are slidably connected to the guide frames. A first winding roller for winding the flexible LCD display screen is rotatably connected between the two sliding frames. The flexible LCD display screen is wound around the first winding roller. Threaded rods are connected to both ends of the first winding roller. The driving component is used to drive the first winding roller to rotate. An offset compensation component is arranged inside the housing. The retracting and extending mechanism is used to retract and extend the flexible LCD display screen; The offset compensation component includes a limit block, a support frame, a nut and a roller. Limit blocks are welded to the right parts of the mutually remote sides of the sliding frames. Support frames are welded to the middle parts of the guide frames. The upper parts of the support frames are inclined planes. Nuts are threadedly connected to the threaded rods. The nuts are located between the support frames and the limit blocks. Rollers are rotatably connected to the upper parts of the nuts. The rollers are all in contact with the adjacent support frames. When the rollers move downward along the inclined planes of the support frames, they can drive the flexible LCD display screen to move downward, so as to keep the bottom of the flexible LCD display screen in the horizontal direction.

2. The flexible LCD display screen with a winding function according to claim 1, characterized in that, the driving component includes a reduction motor and a gearbox. Gearboxes are connected to the mutually remote sides of the sliding frames. Reduction motors for driving the first winding roller to wind the flexible LCD display screen are connected to the mutually remote sides of the gearboxes. The output shaft of the reduction motor is connected to the input shaft of the gearbox. The output shaft of the gearbox is connected to the first winding roller.

3. The flexible LCD display screen with a winding function according to claim 1, characterized in that, the retracting and extending mechanism includes an electric push rod, a telescopic frame and a retracting and extending cover. The telescopic frame is installed on the inner bottom of the housing. An electric push rod for controlling the pulling out of the flexible LCD display screen is connected to one side of the telescopic frame. The retracting and extending cover is slidably connected to the side of the telescopic frame away from the electric push rod. The retracting and extending cover is connected to the end of the flexible LCD display screen away from the first winding roller. The retracting and extending cover is in sealed contact with the housing.

4. The flexible LCD display screen with a winding function according to claim 3, characterized in that, it further includes a support mechanism. The support mechanism includes a support block, a second winding roller, a torsion spring and a support back shell. Two support blocks are connected to the inner bottom of the housing. A second winding roller is rotatably connected between the two support blocks. The second winding roller is parallel to the first winding roller. Torsion springs are connected between the second winding roller and the support blocks. A support back shell for supporting the flexible LCD display screen is wound around the second winding roller. The end of the support back shell away from the second winding roller is connected to the retracting and extending cover.

5. The flexible LCD display screen with a winding function according to claim 1, characterized in that, It further includes a cleaning mechanism, which includes a fixed block, a liquid storage tank, a sealing cover, a cleaning sponge and a liquid replenishment control component. A fixed block is connected inside the housing, and a liquid storage tank is connected to the fixed block. One end of the liquid storage tank passes through the housing, and a sealing cover is covered on the liquid storage tank. A number of liquid replenishment holes are spaced apart on the liquid storage tank. A cleaning sponge for cleaning the flexible LCD display screen is connected to the liquid storage tank. The cleaning sponge contacts the flexible LCD display screen. The liquid replenishment control component is used to control the liquid replenishment amount for the cleaning sponge.

6. A flexible LCD display screen with a winding function according to claim 5, characterized in that the liquid replenishment control component includes a connecting block, a first magnet, a compression spring, a stop block, a second magnet and a sealing block. A number of connecting blocks are spaced and connected to the inner wall of the liquid storage tank. A sealing block is slidably connected between the connecting blocks. The sealing block blocks the liquid replenishment holes. Compression springs are connected between the connecting blocks and the sealing block. Two first magnets are connected to the sealing block, and the first magnets are all in contact with the inner wall of the liquid storage tank. Two stop blocks are connected inside the liquid storage tank. The first magnet will contact the adjacent stop block. Two second magnets are connected to the unfolding cover, and the second magnets are all in contact with the liquid storage tank.

7. A flexible LCD display screen with a winding function according to claim 6, characterized in that it further includes a limiting mechanism, which includes a connecting frame and a limiting roller. Two connecting frames are connected to the inner bottom of the housing. Two limiting rollers for limiting the supporting backplate are rotatably connected between the connecting frames. The supporting backplate passes between the two limiting rollers.

8. An operation method of a flexible LCD display screen with a winding function, using the flexible LCD display screen with a winding function according to any one of claims 1-7, characterized in that it includes the following steps: Drive the telescopic frame to extend through the electric push rod, so that the unfolding cover can pull the flexible LCD display screen to the right. At this time, the threaded rod can be driven to rotate, so that the nuts move towards the mutually separated sides, driving the rollers to move towards the mutually separated sides. When the rollers are separated from the support frame, the rollers can move down along the inclined surface of the support frame under the action of gravity, thereby driving the nuts, the first winding roller and the flexible LCD display screen to move down. Under the action of gravity, the flexible LCD display screen will slowly drop a certain height, keeping the bottom of the flexible LCD display screen in the horizontal direction.

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