Tablet computer panel display brightness uniformity monitoring device and monitoring method thereof

Abstract

The invention belongs to the technical field of electronic panel monitoring, and discloses a tablet personal computer panel display brightness uniformity monitoring device and a monitoring method thereof.The tablet personal computer panel display brightness uniformity monitoring device comprises a base, a support is fixedly installed at the top end of the base, an imaging brightness meter is installed at the bottom of the support and arranged above the base, and a cleaning assembly is arranged at the top of the base; during working, the motor is started to drive the cleaning box to move, and the cleaning box moves to drive the fiber cloth to move so as to wipe the surface of the panel of the tablet computer; meanwhile, a cleaning box moves to drive a first gear to move, when the first gear moves to be meshed with a rack plate, the first gear rotates, rotation of the first gear drives a winding roller to rotate, the winding roller winds the fiber cloth, the wiped part is wound away, and the exposed clean cloth cover continues to be wiped; it is ensured that a clean area is used during wiping each time, the efficient cleaning capacity is kept, and the accuracy of a monitoring result is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of electronic panel monitoring, and specifically relates to a monitoring device and a monitoring method for the display brightness uniformity of a tablet computer panel. Background Art

[0002] With the development of the consumer electronics industry towards high resolution, high dynamic range (HDR), and flexible display, the display performance requirements of tablet computer panels have been significantly improved. Among them, display brightness uniformity, as one of the core indicators for measuring screen quality, directly affects the user's visual experience, product yield, and market competitiveness.

[0003] After retrieval, for example, in the patent: CN218411631U, a display screen illumination brightness monitoring device, including a base, a detection groove is opened inside the base, an adjustment mechanism is installed on one side above the base, one end of a cleaning rod is connected above the detection groove on the outside of the adjustment mechanism, a fixing mechanism is connected to the end of the cleaning rod, one end of a bracket is connected above the left side of the base, and the other end of the bracket is connected to an imaging brightness meter. This utility model stores the display screen through the detection groove inside the base, monitors through the imaging brightness meter at the top of the bracket, detects and compares the brightness. At the same time, before detection, the cleaning rod is driven to move through the screw sleeve inside the adjustment mechanism, driving the cleaning cotton strip inside the fixing mechanism to clean the surface of the display screen. The fixing mechanism facilitates the replacement of the cleaning cotton strip, improving the practicability and monitoring accuracy.

[0004] Currently, when the monitoring device works, it cleans the floating dust on the surface of the display screen by moving the cleaning cotton strip to improve the monitoring accuracy. However, since the cotton strip can only remove large particle floating dust with a size of ≥50μm and is ineffective for fine dust with a size of 20 - 50μm (accounting for 70% of the total industrial environment dust), and the shedding of cotton strip fibers (≥5 fibers per square centimeter) will generate new pollutants, easily causing secondary pollution, thereby affecting the accuracy of the monitoring results. Summary of the Invention

[0005] The purpose of the present invention is to provide a monitoring device and a monitoring method for the display brightness uniformity of a tablet computer panel to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A monitoring device for the display brightness uniformity of a tablet computer panel, including a base, a bracket is fixedly installed at the top of the base, an imaging brightness meter is installed at the bottom of the bracket, the imaging brightness meter is arranged above the base, and a cleaning component is arranged on the top of the base.

[0007] The cleaning component includes a cleaning box arranged on the top of the base. A fiber cloth is arranged inside the cleaning box. A winding roller, a releasing roller and a guiding roller are installed inside the fiber cloth. The winding roller and the releasing roller are both rotatably installed inside the cleaning box. A slider is arranged at the bottom of one end of the cleaning box. The slider is slidably installed inside the base. The inner wall of the slider is threadedly connected with a first threaded rod. One end of the first threaded rod is installed with a motor;

[0008] One end of the winding roller is installed with a first gear. A rack plate is arranged on one side of the first gear. The rack plate is fixedly installed at the top end of the base.

[0009] As a further technical solution of the present invention, an elastic plate is fixedly installed at the bottom of the guiding roller. A spring is installed inside the elastic plate.

[0010] As a further technical solution of the present invention, a liquid storage cavity is formed inside the guiding roller. A roller is rotatably installed on the inner wall of the guiding roller. The rollers are evenly distributed.

[0011] As a further technical solution of the present invention, a side plate is installed on one side of the cleaning box through bolts.

[0012] As a further technical solution of the present invention, a plugging block is embedded at the top of the guiding roller.

[0013] As a further technical solution of the present invention, one end of the winding roller is fixedly connected with a connecting block. The connecting block is slidably installed inside the first gear.

[0014] As a further technical solution of the present invention, a second gear is rotatably installed inside the slider. The top end of the second gear is fixedly installed with a second threaded rod. The second threaded rod is embedded inside the cleaning box and is threadedly connected;

[0015] One side of the second gear is meshed with a tooth block. The tooth block is installed on the inner wall of the base.

[0016] As a further technical solution of the present invention, two groups of tooth blocks are provided.

[0017] As a further technical solution of the present invention, each tooth block is rotatably installed on the inner wall of the base through a rotating shaft. A torsion spring is installed on the outer wall of the rotating shaft.

[0018] A monitoring method for a monitoring device of the display brightness uniformity of a tablet computer panel includes the following steps:

[0019] S1: During work, first place the tablet computer panel inside the base so that it is located below the imaging luminance meter;

[0020] S2: Then start the motor to drive the first threaded rod to rotate. The rotation of the first threaded rod drives the movement of the slider, the movement of the slider drives the movement of the cleaning box, and the movement of the cleaning box drives the movement of the fiber cloth to wipe the surface of the tablet panel;

[0021] S3: At the same time, the movement of the cleaning box drives the movement of the first gear. When the first gear moves and meshes with the rack plate, the first gear rotates. The rotation of the first gear drives the rotation of the winding roller, so that the winding roller winds the fiber cloth, rolls away the wiped part, and exposes a clean cloth surface for continuous wiping, ensuring that each wipe uses a clean area;

[0022] S4: When the winding roller winds the fiber cloth, the fiber cloth unwinds on the outer wall of the unwinding roller. During the movement of the fiber cloth, it drives the roller to rotate, so that the roller carries the cleaning liquid and applies it to the surface of the fiber cloth. After being absorbed by the fiber cloth, it wipes the panel;

[0023] S5: When the cleaning box moves to one side of the bracket to wipe the panel, when the cleaning box moves back to its original position, the second gear meshes with one set of tooth blocks and rotates. The rotation of the second gear drives the rotation of the second threaded rod. When the second threaded rod rotates, the cleaning box moves up a little distance to separate the fiber cloth from the surface of the panel, so that the fiber cloth wipes the surface of the panel only in one direction. When the cleaning box returns to its original position, the second gear is driven to rotate by the other set of tooth blocks to move the cleaning box down to its original position.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. Through the setting of the cleaning component, during operation, first place the tablet panel in the base so that it is located below the imaging luminance meter. Then start the motor to drive the first threaded rod to rotate. The rotation of the first threaded rod drives the movement of the slider, the movement of the slider drives the movement of the cleaning box, and the movement of the cleaning box drives the movement of the fiber cloth to wipe the surface of the tablet panel; at the same time, the movement of the cleaning box drives the movement of the first gear. When the first gear moves and meshes with the rack plate, the first gear rotates. The rotation of the first gear drives the rotation of the winding roller, so that the winding roller winds the fiber cloth, rolls away the wiped part, and exposes a clean cloth surface for continuous wiping, ensuring that each wipe uses a clean area, avoiding stain residue, preventing the fiber cloth from adsorbing dust on the panel during the wiping process. If the same area of the same cloth is continuously used for wiping, the adsorbed stains may be re-contaminated onto the panel, resulting in the problem of secondary pollution. Through the above usage method, high cleaning ability can be maintained to ensure the accuracy of the monitoring results.

[0026] 2. In the present invention, the roller is installed in the liquid storage cavity. During operation, when the winding roller winds the fiber cloth, the fiber cloth unwinds on the outer wall of the unwinding roller. During the movement of the fiber cloth, the roller is driven to rotate, so that the roller carries the cleaning liquid and applies it to the surface of the fiber cloth. After being absorbed by the fiber cloth, the panel is wiped, which helps to improve the cleaning efficiency and effect.

[0027] 3. In the present invention, when the cleaning box moves upward during resetting, after the cleaning box moves to one side of the bracket to wipe the panel and then moves back to its original position, the second gear meshes with the tooth block and rotates. The rotation of the second gear drives the rotation of the second threaded rod. When the second threaded rod rotates, the cleaning box moves upward a certain distance, separating the fiber cloth from the surface of the panel, so that the fiber cloth wipes the surface of the panel only in one direction, avoiding repeated application of stains to the cleaned area, thereby improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 is a schematic sectional view of the structure at the cleaning box of the present invention;

[0030] Figure 3 is a front view of the sectional structure at the cleaning box of the present invention;

[0031] Figure 4 is a schematic sectional view of the overall structure of the present invention;

[0032] Figure 5 of the present invention Figure 4 is an enlarged schematic view of the structure at A in;

[0033] Figure 6 is a schematic view of the structure at the slider of the present invention;

[0034] Figure 7 is a schematic view of the structure at the first gear of the present invention;

[0035] Figure 8 is a side view of the overall structure of the present invention.

[0036] In the figure: 1. Base; 2. Bracket; 3. Imaging luminance meter; 4. Cleaning box; 5. Winding roller; 6. Unwinding roller; 7. Guide roller; 8. Fiber cloth; 9. Connecting block; 10. First gear; 11. Slider; 12. First threaded rod; 13. Motor; 14. Rack plate; 15. Liquid storage cavity; 16. Roller; 17. Elastic plate; 18. Spring; 19. Plugging block; 20. Side plate; 21. Second threaded rod; 22. Second gear; 23. Tooth block; 24. Rotating shaft; 25. Torsion spring; 28. Sensor. DETAILED DESCRIPTION OF THE INVENTION

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] As Figures 1 to 8 shown, in an embodiment of the present invention, a monitoring device for the display brightness uniformity of a tablet computer panel includes a base 1. A bracket 2 is fixedly installed at the top end of the base 1. An imaging luminance meter 3 is installed at the bottom of the bracket 2. The imaging luminance meter 3 is arranged above the base 1. A cleaning component is arranged at the top of the base 1;

[0039] The cleaning component includes a cleaning box 4 arranged at the top of the base 1. A fiber cloth 8 is arranged inside the cleaning box 4. A winding roller 5, a unwinding roller 6 and a guide roller 7 are installed inside the fiber cloth 8. Both the winding roller 5 and the unwinding roller 6 are rotatably installed inside the cleaning box 4. A slider 11 is arranged at the bottom of one end of the cleaning box 4. The slider 11 is slidably installed inside the base 1. The inner wall of the slider 11 is threadedly connected with a first threaded rod 12. One end of the first threaded rod 12 is installed with a motor 13;

[0040] One end of the winding roller 5 is installed with a first gear 10. A rack plate 14 is arranged on one side of the first gear 10. The rack plate 14 is fixedly installed at the top end of the base 1.

[0041] Existing: CN218411631U discloses a display screen illumination brightness monitoring device. The base 1, the bracket 2 and the imaging luminance meter 3 proposed in the present application document are disclosed in this patent. These technical means will not be elaborated one by one here;

[0042] The fiber cloth 8 is specifically an ultra-fine fiber cloth 8, which has extremely strong water absorption and dust absorption capabilities, can easily remove fingerprints, oil stains and dust on the screen, and will not scratch the screen surface;

[0043] During operation, first place the tablet computer panel in the base 1 so that it is located below the imaging luminance meter 3. Then start the motor 13 to drive the first threaded rod 12 to rotate. The rotation of the first threaded rod 12 drives the movement of the slider 11. The movement of the slider 11 drives the movement of the cleaning box 4. The movement of the cleaning box 4 drives the movement of the fiber cloth 8 to wipe the surface of the tablet computer panel;

[0044] The movement of the cleaning box 4 drives the movement of the first gear 10. When the first gear 10 moves and meshes with the rack plate 14, the first gear 10 rotates. The rotation of the first gear 10 drives the rotation of the winding roller 5, so that the winding roller 5 winds the fiber cloth 8, rolls away the wiped part, exposes a clean cloth surface for continuous wiping, ensures that each wipe uses a clean area, avoids stain residue, and prevents the fiber cloth 8 from adsorbing dust on the panel during the wiping process. If the same area of the same cloth is continuously used for wiping, the adsorbed stains may be re-contaminated onto the panel, resulting in the problem of secondary pollution. Through the above usage method, high cleaning ability can be maintained to ensure the accuracy of the monitoring results.

[0045] A sensor 28, specifically a distance sensor, is installed at the bottom of the imaging luminance meter 3 to ensure that the imaging luminance meter 3 maintains a constant distance (typical value: 3 × the screen diagonal length) from the panel, calibrates the measurement reference, and reduces the overall error of the flat panel brightness detection.

[0046] As Figure 3 shown, an elastic plate 17 is fixedly installed at the bottom of the guide roller 7, and a spring 18 is installed inside the elastic plate 17.

[0047] The elastic plate 17 is elastically arranged and is hollow inside;

[0048] Due to the elastic potential energy of the spring 18, the elastic plate 17 always has a tendency to move downward, which is convenient for stretching the fiber cloth 8, making the fiber cloth 8 have a certain tension, remaining flat during the wiping process, ensuring uniform force application, avoiding excessive or insufficient local cleaning, and improving the overall cleaning effect.

[0049] As Figure 3 shown, a liquid storage cavity 15 is formed inside the guide roller 7, and rollers 16 are rotatably installed on the inner wall of the guide roller 7 and are evenly distributed.

[0050] The liquid storage cavity 15 stores a special cleaning liquid for the electronic screen, and part of the rollers 16 is located inside the liquid storage cavity 15;

[0051] During operation, when the winding roller 5 winds the fiber cloth 8, the fiber cloth 8 unwinds on the outer wall of the unwinding roller 6. During the movement of the fiber cloth 8, the rollers 16 are driven to rotate, so that the rollers 16 carry the cleaning liquid and apply it to the surface of the fiber cloth 8. After being absorbed by the fiber cloth 8, it wipes the panel, which helps to improve the cleaning efficiency and effect.

[0052] As Figure 1 and Figure 2 shown, a side plate 20 is installed on one side of the cleaning box 4 through bolts.

[0053] One end of the guide roller 7 away from the side plate 20 is fixedly connected to the inner wall of the cleaning box 4;

[0054] By removing the side plate 20, it is convenient to replace or install the fiber cloth 8.

[0055] As Figure 2 shown, a plugging block 19 is embedded at the top of the guiding roller 7.

[0056] The setting of the plugging block 19 facilitates adding the special cleaning liquid for the electronic screen into the liquid storage cavity 15.

[0057] As Figure 7 shown, one end of the winding roller 5 is fixedly connected with a connecting block 9, and the connecting block 9 is slidably installed inside the first gear 10.

[0058] During operation, the first gear 10 drives the winding roller 5 to rotate to wind the fiber cloth 8 by the connecting block 9 being embedded in the inner wall of the first gear 10;

[0059] During maintenance, first remove the side plate 20, and then slide the winding roller 5 and the unwinding roller 6 out of the cleaning box 4, so as to facilitate replacing the fiber cloth 8;

[0060] As Figure 4 , Figure 5 and Figure 6 shown, a second gear 22 is rotatably installed inside the slider 11, and the top end of the second gear 22 is fixedly installed with a second threaded rod 21, and the second threaded rod 21 is embedded inside the cleaning box 4 and is in threaded connection;

[0061] One side of the second gear 22 is meshed with a tooth block 23, and the tooth block 23 is installed on the inner wall of the base 1.

[0062] When the cleaning box 4 moves to one side of the bracket 2 to wipe the panel and then moves back to its original position, the second gear 22 meshes with the tooth block 23 and rotates. The rotation of the second gear 22 drives the rotation of the second threaded rod 21. When the second threaded rod 21 rotates, the cleaning box 4 moves up a certain distance, separating the fiber cloth 8 from the surface of the panel, so that the fiber cloth 8 wipes the surface of the panel only in one direction, avoiding the stain being repeatedly smeared to the cleaned area, thereby improving the cleaning efficiency.

[0063] As Figure 4 shown, there are two groups of tooth blocks 23.

[0064] A first sliding groove for the slider 11 to slide is formed inside the base 1, and the two groups of tooth blocks 23 are respectively arranged at both ends of the first sliding groove;

[0065] One group of tooth blocks 23 close to the bracket 2 is used to move the cleaning box 4 up, and one group of tooth blocks 23 away from the bracket 2 is used to move the cleaning box 4 down to reset.

[0066] As Figure 4 and Figure 5As shown, each tooth block 23 is rotatably mounted on the inner wall of the base 1 through a rotating shaft 24, and a torsion spring 25 is mounted on the outer wall of the rotating shaft 24.

[0067] One side of each tooth block 23 is inclined, and a second sliding groove for the rotation of the tooth block 23 is provided inside the base 1;

[0068] When the slider 11 moves, the second gear 22 contacts the inclined surface of the tooth block 23, causing the tooth block 23 to turn into the second sliding groove. At this time, the second gear 22 does not rotate, and at the same time, the torsion spring 25 deforms to store elastic potential energy. When the second gear 22 separates from the tooth block 23, the elastic potential energy is released through the torsion spring 25 to reset, so that the second gear 22 can only rotate in one direction when contacting the two groups of tooth blocks 23, thereby ensuring the stability and reliability of the device.

[0069] A monitoring method for a monitoring device of the display brightness uniformity of a tablet computer panel includes the following steps:

[0070] S1: During operation, first place the tablet computer panel in the base 1 so that it is located below the imaging luminance meter 3;

[0071] S2: Then start the motor 13 to drive the first threaded rod 12 to rotate. The rotation of the first threaded rod 12 drives the movement of the slider 11, the movement of the slider 11 drives the movement of the cleaning box 4, and the movement of the cleaning box 4 drives the movement of the fiber cloth 8 to wipe the surface of the tablet computer panel;

[0072] S3: At the same time, the movement of the cleaning box 4 drives the movement of the first gear 10. When the first gear 10 moves and meshes with the rack plate 14, the first gear 10 rotates. The rotation of the first gear 10 drives the rotation of the winding roller 5, so that the winding roller 5 winds the fiber cloth 8 and rolls away the wiped part, exposing a clean cloth surface for continuous wiping to ensure that each wipe uses a clean area;

[0073] S4: When the winding roller 5 winds the fiber cloth 8, the fiber cloth 8 unwinds on the outer wall of the unwinding roller 6. During the movement of the fiber cloth 8, it drives the roller 16 to rotate, so that the roller 16 carries the cleaning liquid and applies it to the surface of the fiber cloth 8. After being absorbed by the fiber cloth 8, it wipes the panel;

[0074] S5: When the cleaning box 4 moves to one side of the bracket 2 to wipe the panel and then moves back to its original position, the second gear 22 meshes with one group of tooth blocks 23 and rotates. The rotation of the second gear 22 drives the rotation of the second threaded rod 21. When the second threaded rod 21 rotates, the cleaning box 4 moves up a little distance to separate the fiber cloth 8 from the panel surface, so that the fiber cloth 8 wipes the panel surface only in one direction. When the cleaning box 4 returns to its original position, the other group of tooth blocks 23 drives the second gear 22 to rotate, causing the cleaning box 4 to move down and reset.

[0075] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A monitoring device for the display brightness uniformity of a tablet computer panel, comprising a base (1), characterized in that: A bracket (2) is fixedly installed at the top end of the base (1), an imaging luminance meter (3) is installed at the bottom of the bracket (2), the imaging luminance meter (3) is arranged above the base (1), and a cleaning component is arranged at the top of the base (1); The cleaning component includes a cleaning box (4) arranged at the top of the base (1), a fiber cloth (8) is arranged inside the cleaning box (4), a winding roller (5), a unwinding roller (6) and a guiding roller (7) are installed inside the fiber cloth (8), the winding roller (5) and the unwinding roller (6) are both rotatably installed inside the cleaning box (4), a slider (11) is arranged at the bottom of one end of the cleaning box (4), the slider (11) is slidably installed inside the base (1), the inner wall of the slider (11) is threadedly connected with a first threaded rod (12), and one end of the first threaded rod (12) is installed with a motor (13); One end of the winding roller (5) is installed with a first gear (10), a rack plate (14) is arranged on one side of the first gear (10), and the rack plate (14) is fixedly installed at the top end of the base (1).

2. The monitoring device for the display brightness uniformity of a tablet computer panel according to claim 1, wherein: An elastic plate (17) is fixedly installed at the bottom of the guiding roller (7), and a spring (18) is installed inside the elastic plate (17).

3. The monitoring device for the display brightness uniformity of a tablet computer panel according to claim 1, characterized in that: A liquid storage cavity (15) is formed inside the guiding roller (7), and rollers (16) are rotatably installed on the inner wall of the guiding roller (7), and the rollers (16) are evenly distributed.

4. A monitoring device for the display brightness uniformity of a tablet computer panel according to claim 1, characterized in that: One side of the cleaning box (4) is installed with a side plate (20) through bolts.

5. The monitoring device for the display brightness uniformity of a tablet computer panel according to claim 1, wherein: A blocking block (19) is embedded at the top of the guiding roller (7).

6. The monitoring device for the display brightness uniformity of a tablet computer panel according to claim 1, wherein: One end of the winding roller (5) is fixedly connected with a connecting block (9), and the connecting block (9) is slidably installed inside the first gear (10).

7. The monitoring device for the display brightness uniformity of a tablet computer panel according to claim 1, characterized in that: A second gear (22) is rotatably installed inside the slider (11), a second threaded rod (21) is fixedly installed at the top end of the second gear (22), and the second threaded rod (21) is embedded inside the cleaning box (4) and is threadedly connected; One side of the second gear (22) is meshed with a tooth block (23), and the tooth block (23) is installed on the inner wall of the base (1).

8. A monitoring device for the display brightness uniformity of a tablet computer panel according to claim 7, characterized in that: There are two groups of the tooth blocks (23).

9. The monitoring device for the display brightness uniformity of a tablet panel according to claim 7, characterized in that: Each of the tooth blocks (23) is rotatably installed on the inner wall of the base (1) through a rotating shaft (24), and a torsion spring (25) is installed on the outer wall of the rotating shaft (24).

10. A monitoring method for a monitoring device of the display brightness uniformity of a tablet computer panel, which is applicable to the monitoring device of the display brightness uniformity of a tablet computer panel described in the above claims 1-9, characterized in that, Including the following steps: S1: During work, first place the tablet computer panel inside the base (1) so that it is located below the imaging luminance meter (3); S2: Then start the motor (13) to drive the first threaded rod (12) to rotate. The rotation of the first threaded rod (12) drives the movement of the slider (11). The movement of the slider (11) drives the movement of the cleaning box (4). The movement of the cleaning box (4) drives the movement of the fiber cloth (8) to wipe the surface of the tablet computer panel; S3: The movement of the cleaning box (4) drives the movement of the first gear (10). When the first gear (10) moves and meshes with the rack plate (14), the first gear (10) rotates. The rotation of the first gear (10) drives the rotation of the winding roller (5), so that the winding roller (5) winds the fiber cloth (8), rolls away the wiped part, exposes a clean cloth surface for continuous wiping, and ensures that a clean area is used for each wiping. S4: When the winding roller (5) winds the fiber cloth (8), the fiber cloth (8) unwinds on the outer wall of the unwinding roller (6). During the movement of the fiber cloth (8), the roller (16) is driven to rotate, so that the roller (16) carries the cleaning liquid and applies it to the surface of the fiber cloth (8). After being absorbed by the fiber cloth (8), it wipes the panel. S5: When the cleaning box (4) moves to one side of the bracket (2) to wipe the panel and then moves back to its original position, the second gear (22) meshes with one set of tooth blocks (23) and rotates. The rotation of the second gear (22) drives the rotation of the second threaded rod (21). When the second threaded rod (21) rotates, the cleaning box (4) moves up a certain distance, separating the fiber cloth (8) from the panel surface, so that the fiber cloth (8) wipes the panel surface in only one direction. When the cleaning box (4) returns to its original position, the other set of tooth blocks (23) drives the second gear (22) to rotate, causing the cleaning box (4) to move down and return to its original position.

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