Cleaning Liquid Air Drying System and Method for the Backplane Cleaning Process of a Curved Display Screen

Abstract

The present invention discloses a cleaning liquid air-drying system for a curved display backplane cleaning process, which includes a conveyor belt. There is an air-drying station on the conveyor belt, and the conveyor belt can transport the curved display backplane to the air-drying station. The curved display backplane is placed flat on the conveyor belt with the convex surface facing down and moves synchronously with the conveyor belt. Above the curved display backplane at the air-drying station of the conveyor belt, there are three groups of air-drying units. The three groups of air-drying units are respectively located at the upper left diagonal, directly above, and upper right diagonal of the air-drying station, and respectively include a positive pressure blower, a positive pressure blower, and a positive pressure blower. The present invention can achieve all-round air-drying of the arc display backplane without suspension.

Description

Technical Field

[0001] The present invention belongs to the field of display backplane processes. Background Art

[0002] The display screen of a curved display screen adapts to the curvature of the human eye's retina, and the visual experience of its large screen is better than that of a flat display screen. For the aluminum alloy backplane of this curved display screen to adapt to the curved display structure, its structure is also correspondingly an arc surface structure;

[0003] When processing the metal backplane with such an arc surface structure, a large amount of process debris and other attachments remain on its surface. Therefore, each display backplane needs to undergo a cleaning process. After the cleaning process is completed, in order to quickly enter the next process, it needs to be quickly air-dried. If residual moisture remains, it will cause risks such as later rusting;

[0004] In order to improve the thoroughness of air-drying, the existing drying process requires each arc surface metal backplane to be air-dried to be suspended by a special mechanism, and then air-dried from all directions by a blower. While relying on the suspension mechanism, it is also necessary to control the blower to reach multiple positions of the suspended arc surface backplane for dead-angle-free air-drying. This process is cumbersome, and due to the special nature of the arc surface structure, a special suspension device also needs to be designed, resulting in high costs. Summary of the Invention

[0005] Object of the Invention: In order to overcome the deficiencies in the prior art, the present invention provides a cleaning liquid air-drying system for the cleaning process of a curved display screen backplane, which can achieve all-round air-drying of the curved display screen backplane without suspension.

[0006] Technical Solution: To achieve the above object, the cleaning liquid air-drying system for the cleaning process of the curved display screen backplane of the present invention includes a conveyor belt. There is an air-drying station on the conveyor belt, and the conveyor belt can convey the curved display screen backplane to the air-drying station;

[0007] The curved display screen backplane is placed flat on the conveyor belt with the convex surface facing downwards and moves synchronously with the conveyor belt;

[0008] Above the curved display screen backplane at the air-drying station of the conveyor belt, there are three groups of air-drying units; the three groups of air-drying units are respectively located at the upper left diagonal, directly above, and upper right diagonal of the air-drying station, and respectively include a positive pressure blower, a b positive pressure blower, and a c positive pressure blower.

[0009] Further, one group of air-drying units directly above the curved display screen backplane at the air-drying station includes a positive pressure blower. The a air outlet pipe of the a positive pressure blower faces downwards. One side of the a positive pressure blower is provided with a blower deflection motor at a fixed position. One end of the rotating shaft of the blower deflection motor is fixedly connected to the casing of the a positive pressure blower, and the blower deflection motor drives the a positive pressure blower to deflect around the axis of the rotating shaft through the rotating shaft.

[0010] Further, a vertical median line intersecting the axis of the rotating shaft is set. Under normal conditions, the a air outlet of the a air duct faces downward, and the extension line of the jet direction of the gas ejected from the a air outlet coincides with the vertical median line; the gas ejected downward from the a air outlet just sprays towards the concave center of the curved display screen backplane at the air-drying station of the conveyor belt. The curved display screen backplane maintains a balanced posture under the balanced force composed of the wind pressure from directly above and the supporting force of the conveyor belt.

[0011] Further, based on the fact that the a air duct of the a positive pressure fan faces vertically downward: after the a air duct of the a positive pressure fan deflects leftward by a° around the axis of the rotating shaft, the a air outlet correspondingly shifts leftward, so that the gas ejected from the a air outlet gradually changes from originally spraying towards the concave center of the curved display screen backplane to spraying towards the left end of the concave surface of the curved display screen backplane. As a result, the left side of the concave surface of the curved display screen backplane is subjected to the wind pressure from the a air outlet. Under the action of the wind pressure from the a air outlet, the left part of the curved display screen backplane is like a seesaw, causing the left end of the backplane to descend and the right end of the backplane to rise, and forming a gradually expanding right air-drying blowing inlet between the lower side of the right part of the curved display screen backplane and the conveyor belt.

[0012] Further, a set of air-drying units in the upper right oblique direction of the curved display screen backplane at the air-drying station includes a fixedly installed c positive pressure fan. The c air outlet of the c air duct of the c positive pressure fan faces the lower left oblique direction and is opposite to the formed right air-drying blowing inlet. The gas jet ejected from the c air outlet can just obliquely blow into the formed right air-drying blowing inlet.

[0013] Further, based on the fact that the a air duct of the a positive pressure fan faces vertically downward: after the a air duct of the a positive pressure fan deflects rightward by a° around the axis of the rotating shaft, the a air outlet correspondingly shifts rightward, so that the gas ejected from the a air outlet gradually changes from originally spraying towards the concave center of the curved display screen backplane to spraying towards the right end of the concave surface of the curved display screen backplane. As a result, the right side of the concave surface of the curved display screen backplane is subjected to the wind pressure from the a air outlet. Under the action of the wind pressure from the a air outlet, the right part of the curved display screen backplane is like a seesaw, causing the right end of the backplane to descend and the left end of the backplane to rise, and forming a gradually expanding left air-drying blowing inlet between the lower side of the left part of the curved display screen backplane and the conveyor belt.

[0014] Further, a set of air-drying units in the upper left oblique direction of the curved display screen backplane at the air-drying station includes a fixedly installed b positive pressure fan. The b air outlet of the b air duct of the b positive pressure fan faces the lower right oblique direction and is opposite to the formed left air-drying blowing inlet. The gas jet ejected from the b air outlet can just obliquely blow into the formed left air-drying blowing inlet.

[0015] Further, the a air duct, the b air duct, and the c air duct are all flat.

[0016] Further: An a-arm and a b-arm are symmetrically arranged on both sides of a positive pressure fan respectively, and an a-attitude restraint ball and a b-attitude restraint ball are fixed at the ends of the a-arm and the b-arm respectively.

[0017] Further, under the driving of the wind pressures generated by the three fans, the attitude of the backplane of the curved display screen automatically changes, so that the middle part of the concave surface, the left side of the concave surface, the right side of the concave surface, the left half of the convex surface and the right half of the convex surface of the backplane of the curved display screen are all thoroughly dried without leaving any dead corners.

[0018] Beneficial effects: The present invention can achieve all-round drying of the backplane of the arc-shaped display screen without hanging. After going through "Step 1" to "Step 4" of this solution, under the driving of the wind pressures generated by the three fans, the attitude of the backplane of the curved display screen automatically changes, so that the middle part of the concave surface, the left side of the concave surface, the right side of the concave surface, the left half of the convex surface and the right half of the convex surface of the backplane of the curved display screen are all thoroughly dried without leaving any dead corners. Description of the Drawings

[0019] Attached Figure 1 is a schematic diagram of the state at the end of "Step 2";

[0020] Attached Figure 2 is a schematic diagram when the left part of the backplane of the curved display screen in "Step 3" is under the action of the wind pressure from the a air outlet, like a seesaw, causing the left end of the backplane to descend and the right end of the backplane to rise until it contacts the b attitude restraint ball and cannot rise further;

[0021] Attached Figure 3 is a schematic diagram of the state at the end of "Step 4";

[0022] Attached Figure 4 is for "Attached Figure 3 " three-dimensional schematic diagram;

[0023] Attached Figure 5 is a schematic diagram of the structure of the a positive pressure fan;

[0024] Attached Figure 6 is a schematic diagram of the cooperation between the cleaning workshop and the conveyor belt. Detailed Embodiment

[0025] The present invention will be further described below with reference to the drawings.

[0026] As shown in the attached Figures 1 to 6 0The cleaning liquid drying system of the backplane cleaning process of the curved display screen shown, as Figure 6, including a cleaning workshop 30 and a horizontal conveyor belt 10 that shuttles inside and outside the cleaning workshop 30. There is a drying station 33 outside the cleaning workshop 30 on the conveyor belt 10. The conveyor belt 10 can successively convey the curved display backplane 1 that has been cleaned inside the cleaning workshop 30 to the outside of the cleaning workshop 30 and reach the drying station 33 of the conveyor belt 10.

[0027] The curved display backplane 1 is placed flat on the conveyor belt 10 with the convex surface facing down and moves synchronously with the conveyor belt 10. In order to achieve a certain limiting effect, as Figure 1 shown, at both ends of each curved display backplane 1 placed flat on the conveyor belt 10, a first limiting strip 2.1 and a second limiting strip 2.2 fixed to the surface of the conveyor belt 10 are respectively provided.

[0028] Above the curved display backplane 1 at the drying station 33 of the conveyor belt 10, there are three groups of drying units; the three groups of drying units are respectively located at the upper left, directly above, and upper right of the drying station 33, and respectively include a positive pressure blower 3, a positive pressure blower 6, and a positive pressure blower 13; in order to improve the drying effect, this solution also includes a hot air supply pipe 18, a hot air supply pipe 7, and a hot air supply pipe 12. The air inlet ends of the a positive pressure blower 3, the b positive pressure blower 6, and the c positive pressure blower 13 are respectively connected to the a hot air supply pipe 18, the b hot air supply pipe 7, and the c hot air supply pipe 12.

[0029] Since the a positive pressure blower 3 has a deflection requirement during operation, the a hot air supply pipe 18 is a flexible hose to adapt to the movement requirements of the a positive pressure blower 3.

[0030] As Figure 1 , a group of drying units directly above the curved display backplane 1 at the drying station 33 includes a positive pressure blower 3. The a air outlet pipe 9 of the a positive pressure blower 3 faces down. On one side of the a positive pressure blower 3, there is a fixed-position fan deflection motor 14. One end of the rotating shaft 17 of the fan deflection motor 14 is fixedly connected to the housing of the a positive pressure blower 3. The fan deflection motor 14 drives the a positive pressure blower 3 to deflect around the axis of the rotating shaft 17 through the rotating shaft 17.

[0031] Let a vertical median line 15 that intersects the axis of the rotating shaft 17 be set. Under normal conditions, the a air outlet 19 of the a air outlet pipe 9 faces down, and the extension line 16 of the gas ejection direction of the a air outlet 19 coincides with the vertical median line 15; the gas ejected downward from the a air outlet 19 just sprays onto the concave center of the curved display backplane 1 at the drying station 33 of the conveyor belt 10. The curved display backplane 1 maintains a balanced posture under the balanced force composed of the wind pressure from directly above and the supporting force of the conveyor belt 10; as Figure 1 shown.

[0032] Based on the fact that the air outlet pipe 9 of the positive pressure fan 3 is vertically downward: After the air outlet pipe 9 of the positive pressure fan 3 deflects leftward by an angle a around the axis of the rotating shaft 17, as Figure 2 shown, the corresponding air outlet 19 deflects leftward, causing the gas ejected from the air outlet 19 to gradually change from spraying towards the center of the concave surface of the curved display screen backplane 1 to spraying towards the left end of the concave surface of the curved display screen backplane 1. As a result, the left side of the concave surface of the curved display screen backplane 1 is subjected to the wind pressure from the air outlet 19. Under the action of the wind pressure from the air outlet 19, the left part of the curved display screen backplane 1 is like a seesaw, causing the left end 1.1 of the backplane to descend and the right end 1.2 of the backplane to rise, and forming a gradually expanding right air drying and blowing inlet 22 between the lower side of the right part of the curved display screen backplane 1 and the conveyor belt 10;

[0033] A set of air drying units located at the upper right diagonal of the curved display screen backplane 1 at the air drying station 33 includes a fixedly installed positive pressure fan 13. The air outlet 20 of the air outlet pipe 11 of the positive pressure fan 13 faces the left lower diagonal direction and is opposite to the formed right air drying and blowing inlet 22. The gas jet ejected from the air outlet 20 can just be obliquely blown into the formed right air drying and blowing inlet 22.

[0034] Based on the fact that the air outlet pipe 9 of the positive pressure fan 3 is vertically downward: After the air outlet pipe 9 of the positive pressure fan 3 deflects rightward by an angle a around the axis of the rotating shaft 17, as Figure 3 shown, the corresponding air outlet 19 deflects rightward, causing the gas ejected from the air outlet 19 to gradually change from spraying towards the center of the concave surface of the curved display screen backplane 1 to spraying towards the right end of the concave surface of the curved display screen backplane 1. As a result, the right side of the concave surface of the curved display screen backplane 1 is subjected to the wind pressure from the air outlet 19. Under the action of the wind pressure from the air outlet 19, the right part of the curved display screen backplane 1 is like a seesaw, causing the right end 1.2 of the backplane to descend and the left end 1.1 of the backplane to rise, and forming a gradually expanding left air drying and blowing inlet 23 between the lower side of the left part of the curved display screen backplane 1 and the conveyor belt 10; as Figure 3 shown.

[0035] A set of air drying units located at the upper left diagonal of the curved display screen backplane 1 at the air drying station 33 includes a fixedly installed positive pressure fan 6. The air outlet 21 of the air outlet pipe 8 of the positive pressure fan 6 faces the right lower diagonal direction and is opposite to the formed left air drying and blowing inlet 23. The gas jet ejected from the air outlet 21 can just be obliquely blown into the formed left air drying and blowing inlet 23.

[0036] As Figure 4 and Figure 5 shown, in order to improve the coverage of the uniformity of air drying, the air outlet pipe 3, the air outlet pipe 8, and the air outlet pipe 11 of this solution are all flat.

[0037] On both sides of the positive pressure fan 3, an a-arm 5.1 and a b-arm 5.2 are symmetrically arranged respectively. At the ends of the a-arm 5.1 and the b-arm 5.2, an a-attitude restraint ball 4.1 and a b-attitude restraint ball 4.2 are fixed respectively;

[0038] Under the action of the wind pressure from the a-air outlet 19, the left part of the backplane 1 of the curved display screen is like a seesaw. The left end 1.1 of the backplane descends, and the right end 1.2 of the backplane rises until it is in limit contact with the b-attitude restraint ball 4.2 and cannot rise further;

[0039] Under the action of the wind pressure from the a-air outlet 19, the right part of the backplane 1 of the curved display screen is like a seesaw, causing the right end 1.2 of the backplane to descend, and the left end 1.1 of the backplane to rise until it is in limit contact with the a-attitude restraint ball 4.1 and cannot rise further, so as to achieve a certain limiting effect.

[0040] The overall method of this solution is: under the action of the wind pressure generated by the three fans, the attitude of the backplane 1 of the curved display screen automatically changes, so that the middle part of the concave surface, the left side of the concave surface, the right side of the concave surface, the left half of the convex surface and the right half of the convex surface of the backplane of the curved display screen are all thoroughly dried without leaving any dead corners.

[0041] The detailed steps are as follows:

[0042] Step 1, the manipulator in the cleaning workshop 30 will manually place a backplane 1 of the curved display screen that has been cleaned in a state with the convex surface facing down flat on the conveyor belt 10. Then the conveyor belt 10 conveys this backplane 1 of the curved display screen to be dried out of the cleaning workshop 30 and reaches the drying station 33 of the conveyor belt 10 to wait for drying;

[0043] Step 2, under normal conditions, the a-air outlet 19 of the a-air duct 9 is vertically downward. Control the b positive pressure fan 6 and the c positive pressure fan 13 not to run. At the same time, control the a positive pressure fan 3 to run, so that the gas ejected downward from the a-air outlet 19 just sprays onto the central part of the concave surface of the backplane 1 of the curved display screen at the drying station 33 of the conveyor belt 10. The backplane 1 of the curved display screen maintains attitude balance under the balanced force composed of the wind pressure from directly above and the supporting force of the conveyor belt 10; the middle part of the concave surface of the backplane 1 of the curved display screen is quickly dried;

[0044] Step 3: On the basis of keeping the a positive pressure fan 3 running, control the fan deflection motor 14 to gradually deflect the a air outlet pipe 9 of the a positive pressure fan 3 to the left by a° around the axis of the rotating shaft 17. The a air outlet 19 will gradually shift to the left accordingly, so that the gas ejected from the a air outlet 19 gradually changes from spraying towards the center of the concave surface of the curved display screen backplane 1 to spraying towards the left end of the concave surface of the curved display screen backplane 1, quickly drying the left side of the concave surface of the curved display screen backplane 1. At the same time, the left side of the concave surface of the curved display screen backplane 1 is subjected to the wind pressure from the a air outlet 19. Under the action of the wind pressure from the a air outlet 19, the left part of the curved display screen backplane 1 is like a seesaw, causing the left end 1.1 of the backplane to descend and the right end 1.2 of the backplane to rise until it comes into contact with the b attitude constraint ball 4.2 and cannot rise further. Thus, a gradually expanding right air drying inlet 22 is formed between the lower side of the right part of the curved display screen backplane 1 and the conveyor belt 10;

[0045] At this time, start the c positive pressure fan 13. The c air outlet 20 of the c air outlet pipe 11 of the c positive pressure fan 13 is opposite to the formed right air drying inlet 22, and the hot gas jet ejected from the c air outlet 20 just obliquely blows into the formed right air drying inlet 22, quickly drying the right half of the convex surface of the curved display screen backplane 1;

[0046] After the right half of the concave surface of the curved display screen backplane 1 is quickly dried, turn off the c positive pressure fan 13, control the fan deflection motor 14 to gradually deflect the a air outlet pipe 9 of the a positive pressure fan 3 to the right to the vertical, returning to the state at the end of "Step 2";

[0047] Step 4: On the basis of keeping the a positive pressure fan 3 running, control the fan deflection motor 14 to deflect the a air outlet pipe 9 of the a positive pressure fan 3 to the right by a° around the axis of the rotating shaft 17. The a air outlet 19 will shift to the right accordingly, so that the gas ejected from the a air outlet 19 gradually changes from spraying towards the center of the concave surface of the curved display screen backplane 1 to spraying towards the right end of the concave surface of the curved display screen backplane 1, quickly drying the right side of the concave surface of the curved display screen backplane 1. At the same time, the right side of the concave surface of the curved display screen backplane 1 is subjected to the wind pressure from the a air outlet 19. Under the action of the wind pressure from the a air outlet 19, the right part of the curved display screen backplane 1 is like a seesaw, causing the right end 1.2 of the backplane to descend and the left end 1.1 of the backplane to rise until it comes into contact with the a attitude constraint ball 4.1 and cannot rise further, forming a gradually expanding left air drying inlet 23 between the lower side of the left part of the curved display screen backplane 1 and the conveyor belt 10;

[0048] At this time, start the b positive pressure fan 6. The b air outlet 21 of the b air outlet pipe 8 of the b positive pressure fan 6 is opposite to the formed left air drying inlet 23, and the gas jet ejected from the b air outlet 21 just obliquely blows into the formed left air drying inlet 23; quickly drying the left half of the convex surface of the curved display screen backplane 1;

[0049] So far, the middle of the concave surface, the left side of the concave surface, the right side of the concave surface, the left half of the convex surface, and the right half of the convex surface of the curved display backplane 1 have all been thoroughly air-dried without leaving any dead corners.

[0050] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. Cleaning liquid air-drying system for the cleaning process of the backplane of a curved display screen, characterized in that: It includes a conveyor belt (10). There is a drying station (33) on the conveyor belt (10), and the conveyor belt (10) can convey the backplane (1) of the curved display screen to the drying station (33). The backplane (1) of the curved display screen is placed flat on the conveyor belt (10) with the convex surface facing down and moves synchronously with the conveyor belt (10). Above the backplane (1) of the curved display screen at the drying station (33) of the conveyor belt (10), there are three groups of drying units. The three groups of drying units are respectively located at the upper left, directly above, and upper right of the drying station (33), and respectively include a positive pressure fan (3), a positive pressure fan (6), and a positive pressure fan (13). One group of drying units directly above the backplane (1) of the curved display screen at the drying station (33) includes a positive pressure fan (3). On one side of the positive pressure fan (3), there is a fixed-position fan deflection motor (14). One end of the rotating shaft (17) of the fan deflection motor (14) is fixedly connected to the housing of the positive pressure fan (3), and the fan deflection motor (14) drives the positive pressure fan (3) to deflect around the axis of the rotating shaft (17) through the rotating shaft (17). Suppose a vertical median line (15) that intersects the axis of the rotating shaft (17). Under normal conditions, the a air outlet (19) of the a air outlet pipe (9) of the positive pressure fan (3) faces downward, and the extension line (16) of the gas ejection direction of the a air outlet (19) coincides with the vertical median line (15). The gas ejected downward from the a air outlet (19) just sprays onto the center of the concave surface of the backplane (1) of the curved display screen at the drying station (33) of the conveyor belt (10). The backplane (1) of the curved display screen maintains a balanced posture under the balanced force composed of the wind pressure from directly above and the supporting force of the conveyor belt (10).

2. The cleaning liquid air-drying system of the curved display backplane cleaning process according to claim 1, wherein: Based on the fact that the a air outlet pipe (9) of the positive pressure fan (3) faces vertically downward: After the a air outlet pipe (9) of the positive pressure fan (3) deflects leftward by a° around the axis of the rotating shaft (17), the a air outlet (19) correspondingly shifts leftward, so that the gas ejected from the a air outlet (19) gradually changes from spraying onto the center of the concave surface of the backplane (1) of the curved display screen to spraying onto the left end of the concave surface of the backplane (1) of the curved display screen. As a result, the left side of the concave surface of the backplane (1) of the curved display screen receives the wind pressure from the a air outlet (19). Under the action of the wind pressure from the a air outlet (19), the left part of the backplane (1) of the curved display screen is like a seesaw, causing the left end (1.1) of the backplane to descend and the right end (1.2) of the backplane to rise, and forming a gradually expanding right drying air inlet (22) between the lower side of the right part of the backplane (1) of the curved display screen and the conveyor belt (10).

3. The cleaning liquid air drying system for the curved display backplane cleaning process according to claim 2, wherein: One group of drying units at the upper right of the backplane (1) of the curved display screen at the drying station (33) includes a fixedly installed positive pressure fan (13). The c air outlet (20) of the c air outlet pipe (11) of the positive pressure fan (13) faces the lower left direction and is opposite to the formed right drying air inlet (22). The gas jet ejected from the c air outlet (20) can just be obliquely blown into the formed right drying air inlet (22).

4. The cleaning liquid air-drying system of the curved display backplane cleaning process according to claim 3, characterized in that: Based on the fact that the air outlet pipe (9) of a positive pressure fan (3) faces vertically downward: after the air outlet pipe (9) of the positive pressure fan (3) deflects to the right by an angle a around the axis of the rotating shaft (17), the corresponding air outlet (19) deflects to the right, causing the gas ejected from the air outlet (19) to gradually change from spraying towards the center of the concave surface of the curved display screen backplane (1) to spraying towards the right end of the concave surface of the curved display screen backplane (1). As a result, the right side of the concave surface of the curved display screen backplane (1) receives the wind pressure from the air outlet (19). Under the action of the wind pressure from the air outlet (19), the right part of the curved display screen backplane (1) acts like a seesaw, causing the right end (1.2) of the backplane to descend and the left end (1.1) of the backplane to rise, and forming a gradually expanding left air drying inlet (23) between the lower side of the left part of the curved display screen backplane (1) and the conveyor belt (10).

5. The cleaning liquid air-drying system of the curved display backplane cleaning process according to claim 4, characterized in that: A set of air drying units located in the upper left diagonal of the curved display screen backplane (1) at the air drying station (33) includes a fixed-mounted b positive pressure fan (6). The b air outlet (21) of the b air outlet pipe (8) of the b positive pressure fan (6) faces the lower right diagonal direction and is opposite to the formed left air drying inlet (23). The gas jet ejected from the b air outlet (21) can just be obliquely blown into the formed left air drying inlet (23).

6. The cleaning liquid air-drying system of the curved display backplane cleaning process according to claim 5, characterized in that: An a arm (5.1) and a b arm (5.2) are symmetrically arranged on both sides of the positive pressure fan (3) respectively. An a attitude constraint ball (4.1) and a b attitude constraint ball (4.2) are fixed at the ends of the a arm (5.1) and the b arm (5.2) respectively.

7. The air drying method of the air drying system for the cleaning liquid of the curved display backplane cleaning process according to claim 1, characterized in that: Under the drive of the wind pressures generated by the three fans, the attitude of the curved display screen backplane (1) automatically changes, enabling the middle part of the concave surface, the left side of the concave surface, the right side of the concave surface, the left half of the convex surface, and the right half of the convex surface of the curved display screen backplane to be thoroughly air dried without leaving any dead corners.

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