Manufacturing method of flexible touch display screen
By introducing the design of curved plate and strip plate filtration system, lifting structure and flexible screen fixing mechanism in ultrasonic cleaning equipment, the problem of increased impurities in cleaning fluid in traditional equipment is solved, and efficient cleaning and low-cost cleaning fluid management are achieved.
Patent Information
- Application Number
- CN202510531951.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2025-09-12
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
After multiple cleanings, traditional ultrasonic cleaning equipment will increase the amount of particulate impurities in the cleaning fluid, reduce the cleaning effect, and have a low reuse rate of the cleaning fluid, which increases production costs.
An ultrasonic cleaning equipment was designed, which adopted a curved plate and strip plate filtering mechanism, combined with a lifting structure and a flexible screen fixing mechanism. The special structure of the curved plate prevented the residue of cleaning fluid, and the channel and impurity removal structure were used to separate particulate impurities. The impurities were then centrally cleaned through the discharge mechanism, thereby improving the utilization rate of the cleaning fluid.
It can effectively separate particulate impurities in the cleaning liquid, improve the cleaning effect, reduce the frequency of cleaning liquid replacement, reduce the cost of use, adapt to the cleaning of flexible substrates of different sizes, and improve the cleaning efficiency.
Smart Images
Figure CN120618947A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of semiconductor device cleaning equipment, and in particular to a method for manufacturing a flexible touch display screen. Background Art
[0002] With the rapid development of flexible electronic technology, flexible substrates are increasingly being used in fields such as displays and sensors. However, flexible substrates are prone to generating particulate contaminants during the production process, such as detached substrate material or surface coatings. These contaminants can seriously affect product performance and reliability. While traditional ultrasonic cleaning equipment can effectively remove particulate contaminants, after multiple cleanings, the amount of particulate impurities in the cleaning fluid gradually increases, resulting in a decrease in cleaning effectiveness and the need for frequent cleaning fluid replacement, which increases production costs. In addition, existing equipment has difficulty effectively separating and collecting particulate impurities during the cleaning process, resulting in a low reuse rate of the cleaning fluid.
[0003] In view of this, the present invention proposes a method for manufacturing a flexible touch display screen, which solves the above technical problems. Summary of the Invention
[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.
[0005] In a first aspect, a method for manufacturing a flexible touch display screen comprises the following steps: Provide a flexible substrate: Select polyimide or polyethylene terephthalate as the flexible substrate, and use ultrasonic cleaning equipment to clean the substrate surface to remove impurities; Forming a transparent conductive layer: forming a transparent conductive layer on the flexible substrate by sputtering or coating technology, wherein the transparent conductive layer includes indium tin oxide or silver nanowires; Patterning: forming a touch sensor pattern on the transparent conductive layer through photolithography and etching processes; Laminating the protective layer: The patterned transparent conductive layer and the protective layer are bonded with an adhesive and laminated under high temperature and high pressure conditions to ensure that the layers are tightly bonded; Cutting and forming: Cutting the laminated materials into individual displays and bending or folding the displays as needed; Testing and packaging: Test the touch function and display effect of the cut display screen, and use the packaging process to package the display screen with a protective film or frame; Integration and final testing: The packaged flexible touch display is integrated with other components of the device and subjected to functional and durability testing to ensure the performance and reliability of the display.
[0006] In a second aspect, an ultrasonic cleaning device includes a housing, wherein a filtering mechanism is disposed within the housing, the filtering mechanism including a plurality of curved plates, each having filter holes disposed thereon, the plurality of curved plates being fixedly connected by strip plates, a center plate being fixedly connected to the middle of a structure formed by the plurality of curved plates and the plurality of strip plates, a plate-like structure formed by the plurality of curved plates, the plurality of strip plates, and the center plate being slidably connected within the housing, a lifting structure being disposed on the center plate, and a debris removal structure being disposed on the strip plates; The lifting structure includes a No. 1 lead screw, which is threadedly connected to the center plate, and the lower end of the No. 1 lead screw is fixedly connected to the output shaft of the motor; Among them, the impurity removal structure includes channels, and multiple channels are opened on the strip plate. The lower end of the channel is abutted with a closing plug, and the upper end of the closing plug is fixedly connected to the inside of the channel through a reset spring.
[0007] A further improvement of the technical solution of the present invention is that the convex surface of the arc-shaped plate faces upward, and the overall height of the arc-shaped plate is located above the strip plate.
[0008] A further improvement of the technical solution of the present invention is that the upper end surface of the strip plate between two adjacent arc-shaped plates is concave, and the channel is located at the lowest point of the concave surface. A further improvement of the technical solution of the present invention is that an ultrasonic mechanism is provided in the box, the ultrasonic mechanism includes an ultrasonic generator, the ultrasonic generator is fixedly connected to the bottom of the box, the upper end of the ultrasonic generator is fixedly connected to the bottom plate, a drain valve is provided on one side of the bottom plate, and the motor is fixedly connected to the bottom of the box.
[0009] A further improvement of the technical solution of the present invention is that a flexible screen fixing mechanism is provided on the plate-like structure formed by multiple arc plates, multiple strip plates and a central plate. The flexible screen fixing mechanism includes multiple splints, and both ends of the splints slide through a No. 2 lead screw. The No. 2 lead screw connects the multiple splints in series, and the upper end of the No. 2 lead screw is threadedly connected with a fixing nut.
[0010] A further improvement of the technical solution of the present invention is that the lower end of the No. 2 screw is fixedly connected to a sliding plate, the sliding plate is slidably connected to the slide rail, and the slide rail is provided on a plate-like structure formed by multiple arc plates, multiple strip plates and a central plate.
[0011] A further improvement of the technical solution of the present invention is that: a discharge mechanism is provided on one side of the interior of the box body, the discharge mechanism includes an upper cover plate, the upper cover plate is fixedly connected to the inner wall of the box body, the upper cover plate is located above the bottom plate, the upper cover plate, the bottom plate and the inner wall of the box body form a space that can accommodate impurities, one side of the upper cover plate is sealingly and slidingly connected to a side sealing plate, the lower end face of the side sealing plate is fixedly connected to a sealing strip, and the upper end face of the side sealing plate is fixedly connected to a telescopic tube.
[0012] A further improvement of the technical solution of the present invention is that a sliding push block is slidably connected to the impurity accommodating space formed by the upper cover plate, the bottom plate and the inner wall of the box body, a cleaning door is provided on one side of the sliding push block, and a No. 2 drainage hole and a No. 1 drainage hole are respectively provided on the end of the upper cover plate and the side sealing plate close to the cleaning door, an air guide pipe is fixedly connected to the upper cover plate, and the other end of the air guide pipe is fixedly connected to the upper end of the telescopic tube.
[0013] A further improvement of the technical solution of the present invention is that the height of one end of the bottom plate close to the discharge mechanism is lower than that of the other end.
[0014] Beneficial effects of the present invention: The present invention can effectively separate particulate impurities in the cleaning liquid through the design of the filtering mechanism and the impurity removal structure, ensuring that the flexible substrate is always in contact with the cleaning liquid without particulate impurities during the cleaning process, thereby significantly improving the cleaning effect. Secondly, the special structure of the arc plate and the strip plate not only prevents the residual cleaning liquid, but also facilitates the particulate impurities to slide down and concentrate in the channel, further improving the utilization rate of the cleaning liquid. In addition, the equipment can adapt to flexible substrates of different sizes through the cooperation of the lifting structure and the flexible screen fixing mechanism, and realize the simultaneous cleaning of multiple substrates, thereby improving the cleaning efficiency. Finally, the design of the discharge mechanism enables the particulate impurities to be cleaned centrally, reducing the frequency of replacement of the cleaning liquid and reducing the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0016] in: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 A magnified schematic diagram of the structure at center A; Figure 3 Schematic diagram of the connection structure inside the box body of the present invention; Figure 4 for Figure 3A magnified schematic diagram of the structure at B in the middle; Figure 5 for Figure 3 A magnified schematic diagram of the structure at position C in the middle; Figure 6 Schematic diagram of the connection structure of the discharge mechanism in the present invention; Figure 7 for Figure 6 A magnified schematic diagram of the structure at D in the middle; Figure 8 Schematic diagram of the connection structure of the filtering mechanism and the discharge mechanism in the present invention; Figure 9 for Figure 8 A magnified schematic diagram of the structure at E in the middle; Figure 10 Schematic diagram of the connection structure of the telescopic tube in the present invention; In the picture: 1. Ultrasonic mechanism; 11. Box; 12. Ultrasonic generator; 13. Bottom plate; 14. Drain valve; 2. Filter mechanism; 21. Curved plate; 22. Filter hole; 23. Strip plate; 24. Impurity removal mechanism; 241. Closing plug; 242. Return spring; 243. Channel; 25. Center plate; 26. Lifting mechanism; 261. Lead screw No. 1; 262. Motor; 3. Flexible screen fixing mechanism; 31. Clamp; 32. Lead screw No. 2; 33. Fixing nut; 34. Sliding plate; 35. Slide rail; 4. Discharge mechanism; 41. Telescopic tube; 42. Air guide tube; 43. Upper cover; 44. Side sealing plate; 45. Sealing strip; 46. Sliding push block; 47. Drain hole No. 1; 48. Drain hole No. 2; 49. Cleaning door. DETAILED DESCRIPTION
[0017] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0018] Embodiment 1: A method for manufacturing a flexible touch display screen, comprising the following steps: Provide a flexible substrate: Select polyimide or polyethylene terephthalate as the flexible substrate, and use ultrasonic cleaning equipment to clean the substrate surface to remove impurities; Forming a transparent conductive layer: forming a transparent conductive layer on the flexible substrate by sputtering or coating technology, wherein the transparent conductive layer includes indium tin oxide or silver nanowires; Patterning: forming a touch sensor pattern on the transparent conductive layer through photolithography and etching processes; Laminating the protective layer: The patterned transparent conductive layer and the protective layer are bonded with an adhesive and laminated under high temperature and high pressure conditions to ensure that the layers are tightly bonded; Cutting and forming: Cutting the laminated materials into individual displays and bending or folding the displays as needed; Testing and packaging: Test the touch function and display effect of the cut display screen, and use the packaging process to package the display screen with a protective film or frame; Integration and final testing: The packaged flexible touch display is integrated with other components of the device and subjected to functional and durability testing to ensure the performance and reliability of the display.
[0019] like Figure 1 、 Figure 3 、 Figure 4 、 Figure 6 and Figure 8 As shown, on the basis of the first embodiment, the present invention further provides an ultrasonic cleaning device for a flexible substrate, comprising a housing 11, a filtering mechanism 2 provided in the housing 11, the filtering mechanism 2 comprising a plurality of curved plates 21, the curved plates 21 being provided with filter holes 22, the plurality of curved plates 21 being fixedly connected by strip plates 23, a center plate 25 being fixedly connected to the middle of the structure formed by the plurality of curved plates 21 and the plurality of strip plates 23, a plate-like structure formed by the plurality of curved plates 21, the plurality of strip plates 23 and the center plate 25 being slidably connected to the interior of the housing 11, a lifting structure 26 being provided on the center plate 25, and a debris removal structure 24 being provided on the strip plates 23; The lifting structure 26 includes a first screw 261, which is threadedly connected to the center plate 25, and the lower end of the first screw 261 is fixedly connected to the output shaft of the motor 262; the lifting structure 26 is used to drive the flexible substrate up and down to form a cleaning; The impurity removal structure 24 includes a channel 243. The strip plate 23 is provided with a plurality of channels 243. The lower end of the channel 243 is abutted against a closing plug 241. The upper end of the closing plug 241 is fixedly connected to the interior of the channel 243 by a return spring 242. The closing plug 241 is conical. The upper end surface of the strip plate 23 between two adjacent arc-shaped plates 21 is concave, and the channel 243 is located at the lowest point of the concave surface.
[0020] In this embodiment, the driving motor 262 drives the No. 1 lead screw 261 to rotate after it works, and the No. 1 lead screw 261 drives the center plate 25 and the flexible screen fixing mechanism 3 to enter the ultrasonic cleaning liquid as a whole. After reaching the preset position, the motor 262 stops working, and the flexible screen fixing mechanism 3 stops descending. At this time, the flexible substrate is in the cleaning liquid and is cleaned, and the particles on the flexible substrate are shaken off (the particles are the substrate material or surface layer that has fallen off the flexible substrate). After a period of cleaning, the motor 262 drives the No. 1 lead screw 261 to rotate in the opposite direction, so that the center plate 25 and the flexible screen fixing mechanism 3 move upward and reset, so that the flexible substrate is away from the ultrasonic cleaning liquid. During the cleaning process, a portion of the cleaning liquid enters the bottom through the filter hole 22 of the arc plate 21 (this portion of the cleaning liquid is mixed with particles, but the particles cannot pass through the filter hole 22, so the particles will slide into the concave surface of the upper end surface of the strip plate 23, or enter the channel 243). Due to the gravity of the cleaning liquid, another portion of the cleaning liquid will squeeze the closing plug 241, causing the return spring 242 to stretch, thereby opening the channel 243. At this time, the accumulated particles and the cleaning liquid enter the bottom together, so that the particles and cleaning liquid above the center plate 25 can enter the bottom. At this time, the user can take out the cleaned flexible substrate.
[0021] When the flexible substrate is cleaned for the next time, the plate-like structure formed by the same curved plate 21, strip plate 23 and center plate 25 as last time will drive the flexible substrate to move downward. At this time, due to the elastic force of the return spring 242, the channel 243 is always in a closed state. At this time, the cleaning liquid can only reach the top of the plate-like structure from the filter hole 22 of the curved plate 21 to clean the flexible substrate. The filter hole 22 can only allow the cleaning liquid to pass through, but not particulate impurities. In this way, the cleaning liquid is filtered before contacting the flexible substrate. The cleaning liquid contacted by the flexible substrate does not contain particulate impurities, thereby improving the cleaning effect.
[0022] It should be noted that after multiple cleanings, the cleaning fluid in traditional ultrasonic cleaning machines will contain too many mixed particulate impurities, which will lead to a decrease in cleaning effect. Therefore, users need to frequently replace the cleaning fluid. However, this device can actively block the particulate impurities at the bottom, so that the cleaning fluid in contact with the flexible substrate is free of particulate impurities, which not only improves the cleaning effect but also saves the cost of using the cleaning fluid.
[0023] It is also necessary to understand that the special structure of the arc plate 21 can prevent the residue of cleaning liquid, and at the same time facilitate the granular impurities to slide onto the strip plate 23. The special shape of the strip plate 23 can facilitate the granular impurities to enter the channel 243, so that the granular impurities can reach the bottom and be blocked.
[0024] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 and Figure 8 As shown, an ultrasonic mechanism 1 is provided in the box 11, and the ultrasonic mechanism 1 includes an ultrasonic generator 12. The ultrasonic generator 12 is fixedly connected to the bottom of the box 11, and the upper end of the ultrasonic generator 12 is fixedly connected to the bottom plate 13. A drain valve 14 is provided on one side of the bottom plate 13, and the motor 262 is fixedly connected to the bottom of the box 11; the ultrasonic generator 12 is used to generate ultrasonic waves to the cleaning liquid in the box 11, thereby forming a cleaning effect, and the drain valve 14 is used to replace the cleaning liquid.
[0025] A flexible screen fixing mechanism 3 is provided on the plate-like structure formed by multiple curved plates 21, multiple strip plates 23, and a central plate 25. The flexible screen fixing mechanism 3 includes multiple clamping plates 31. A second screw 32 slides through each end of the clamping plates 31. The second screw 32 connects the multiple clamping plates 31 in series. The upper end of the second screw 32 is threadedly connected to a fixing nut 33. The lower end of the second lead screw 32 is fixedly connected to a sliding plate 34 , which is slidably connected to a slide rail 35 . The slide rail 35 is provided on a plate-like structure formed by a plurality of arc-shaped plates 21 , a plurality of strip plates 23 and a center plate 25 .
[0026] In this embodiment, the user fills the ultrasonic cleaning liquid into the box 11, then starts the ultrasonic generator 12 and adjusts the ultrasonic generator 12 to a preset intensity. Then, the two ends of the flexible substrate are placed between adjacent clamps 31. Through the cooperation of the sliding plate 34 and the slide rail 35, flexible substrates of different lengths can be accommodated. Because there are multiple clamps 31, multiple flexible substrates can be fixed at one time, and gaps are created between the multiple flexible substrates, thereby improving the ultrasonic cleaning effect. Finally, the fixing nut 33 is rotated so that the fixing nut 33 has a downward squeezing effect on the clamp 31, thereby completing the fixation of the multiple flexible substrates.
[0027] like Figure 3 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10 As shown, a discharge mechanism 4 is provided on one side of the interior of the box body 11. The discharge mechanism 4 includes an upper cover plate 43, which is fixedly connected to the inner wall of the box body 11. The upper cover plate 43 is located above the bottom plate 13. The upper cover plate 43, the bottom plate 13 and the inner wall of the box body 11 form a space for accommodating impurities. A side sealing plate 44 is sealingly and slidably connected to one side of the upper cover plate 43. A sealing strip 45 is fixedly connected to the lower end surface of the side sealing plate 44. The upper end surface of the side sealing plate 44 is fixedly connected to the telescopic tube 41. A sliding push block 46 is slidably connected to the impurity accommodation space formed by the upper cover plate 43, the bottom plate 13, and the inner wall of the box body 11. A cleaning door 49 is provided on one side of the sliding push block 46. A second drainage hole 48 and a first drainage hole 47 are respectively provided on the ends of the upper cover plate 43 and the side sealing plate 44 near the cleaning door 49. An air guide tube 42 is fixedly connected to the upper cover plate 43, and the other end of the air guide tube 42 is fixedly connected to the upper end of the telescopic tube 41. The height of one end of the bottom plate 13 close to the discharge mechanism 4 is lower than that of the other end.
[0028] In this embodiment, since the bottom plate 13 is arranged at an angle, particulate impurities will slide into the space formed by the upper cover plate 43, the bottom plate 13 and the inner wall of the box body 11, and accumulate in this space. When the plate-like structure formed by the multiple curved plates 21, the multiple strip plates 23 and the center plate 25 slides downward, the telescopic tube 41 will drive the side sealing plates 44 and the sealing strips 45 to contact the bottom plate 13, so that the space formed by the upper cover plate 43, the bottom plate 13 and the inner wall of the box body 11 is sealed, and at the same time, particulate impurities inside the space will not leak. When the telescopic tube 41 is continuously compressed, the gas in the telescopic tube 41 enters the space formed by the upper cover plate 43, the bottom plate 13 and the inner wall of the box body 11 through the air guide pipe 42 (the telescopic tube 41 is as shown in FIG. Figure 10 As shown, when continuously compressed, the gas will eventually overflow from the air guide pipe 42). The connection position of the air guide pipe 42 and the upper cover plate 43 needs to be at the left end of the initial position of the sliding push block 46. At this time, the gas entering the space pushes the sliding push block 46 to slide in the direction close to the cleaning door 49. When the sliding push block 46 slides in the space, it pushes the particulate impurities accumulated in the space. At the same time, the cleaning liquid in the space can be discharged from the first drainage hole 47 and the second drainage hole 48. Finally, the sliding push block 46 pushes the impurity particles out of the cleaning door 49, completing the cleaning of the accumulated particulate impurities, thereby reducing the content of particulate impurities in the cleaning liquid and improving the cleaning effect. At the same time, there is no need to frequently replace the cleaning liquid. Subsequently, the plate-like structure formed by multiple arc plates 21, multiple strip plates 23 and the center plate 25 slides upward and resets. At this time, the spring in the telescopic tube 41 stretches, causing the air guide pipe 42 to inhale air into the space formed by the upper cover plate 43, the bottom plate 13 and the inner wall of the box body 11, thereby causing the sliding push block 46 to reset to its initial position.
[0029] The workflow is as follows: The user fills the ultrasonic cleaning liquid into the box 11, then starts the ultrasonic generator 12 and adjusts the ultrasonic generator 12 to a preset intensity. Then, the two ends of the flexible substrate are placed between adjacent clamps 31. Through the cooperation of the sliding plate 34 and the slide rail 35, flexible substrates of different lengths can be adapted. Because there are multiple clamps 31, multiple flexible substrates can be fixed at one time, and gaps are left between the multiple flexible substrates, thereby improving the ultrasonic cleaning effect. Finally, the fixing nut 33 is rotated so that the fixing nut 33 has a downward squeezing effect on the clamp 31, thereby completing the fixation of the multiple flexible substrates. Then, after the driving motor 262 works, it drives the No. 1 lead screw 261 to rotate, and the No. 1 lead screw 261 drives the center plate 25 and the flexible screen fixing mechanism 3 to enter the ultrasonic cleaning liquid as a whole. After reaching the preset position, the motor 262 stops working and the flexible screen fixing mechanism 3 stops descending. At this time, the flexible substrate is in the cleaning liquid and is cleaned, and the particles on the flexible substrate are shaken off. After a period of cleaning, the motor 262 drives the No. 1 lead screw 261 to rotate in the opposite direction, so that the center plate 25 and the flexible screen fixing mechanism 3 move upward and reset, so that the flexible substrate leaves the cleaning liquid. In this process, a part of the cleaning liquid enters the bottom from the filter hole 22 of the curved plate 21. Due to the gravity of the cleaning liquid, another part of the cleaning liquid will squeeze the closing plug 241, causing the reset spring 242 to stretch, thereby opening the channel 243. At this time, the accumulated particles and the cleaning liquid enter the bottom together, so that the particles and cleaning liquid above the center plate 25 can enter the bottom. At this time, the user can take out the cleaned flexible substrate.During this process, due to the inclined setting of the bottom plate 13, particulate impurities will slide into the space formed by the upper cover plate 43, the bottom plate 13 and the inner wall of the box body 11, and gather in this space. When the plate-like structure formed by multiple curved plates 21, multiple strip plates 23 and the center plate 25 slides downward, the telescopic tube 41 will drive the side sealing plates 44 and the sealing strips 45 to contact the bottom plate 13, so that the space formed by the upper cover plate 43, the bottom plate 13 and the inner wall of the box body 11 is sealed, and at the same time, the particulate impurities inside the space will not leak. When the telescopic tube 41 is continuously compressed, the gas in the telescopic tube 41 enters the space formed by the upper cover plate 43, the bottom plate 13 and the inner wall of the box body 11 through the air guide pipe 42. The connection position of the air guide pipe 42 and the upper cover plate 43 needs to be at the left end of the initial position of the sliding push block 46. At this time, the air entering the air The gas in the space pushes the sliding push block 46 to slide in the direction close to the cleaning door 49. When the sliding push block 46 slides in the space, it pushes the particulate impurities accumulated in the space. At the same time, the cleaning fluid in the space can be discharged from the No. 1 drain hole 47 and the No. 2 drain hole 48. Finally, the sliding push block 46 pushes the impurity particles out of the cleaning door 49, completing the cleaning of the accumulated particulate impurities, thereby reducing the content of particulate impurities in the cleaning fluid and improving the cleaning effect. At the same time, there is no need to frequently replace the cleaning fluid. Subsequently, the plate-like structure formed by multiple curved plates 21, multiple strip plates 23 and the center plate 25 slides upward and resets. At this time, the spring in the telescopic tube 41 stretches, causing the air guide tube 42 to inhale air into the space formed by the upper cover plate 43, the bottom plate 13 and the inner wall of the box body 11, thereby returning the sliding push block 46 to its initial position.
[0030] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A method for manufacturing a flexible touch display screen, characterized in that: The following steps are involved: Provide a flexible substrate: Select polyimide or polyethylene terephthalate as the flexible substrate, and use ultrasonic cleaning equipment to clean the substrate surface to remove impurities; Forming a transparent conductive layer: forming a transparent conductive layer on the flexible substrate by sputtering or coating technology, wherein the transparent conductive layer includes indium tin oxide or silver nanowires; Patterning: forming a touch sensor pattern on the transparent conductive layer through photolithography and etching processes; Laminating the protective layer: The patterned transparent conductive layer and the protective layer are bonded with an adhesive and laminated under high temperature and high pressure conditions to ensure that the layers are tightly bonded; Cutting and forming: Cutting the laminated materials into individual displays and bending or folding the displays as needed; Testing and packaging: Test the touch function and display effect of the cut display screen, and use the packaging process to package the display screen with a protective film or frame; Integration and final testing: Integrate the packaged flexible touch display with other components of the device and perform functional and durability testing to ensure the performance and reliability of the display. The ultrasonic cleaning device comprises a box (11), a filter mechanism (2) is provided in the box (11), the filter mechanism (2) comprises a plurality of arc-shaped plates (21), the arc-shaped plates (21) are provided with filter holes (22), the plurality of arc-shaped plates (21) are fixedly connected to each other via strip plates (23), a center plate (25) is fixedly connected to the middle of the structure formed by the plurality of arc-shaped plates (21) and the plurality of strip plates (23), a plate-like structure formed by the plurality of arc-shaped plates (21), the plurality of strip plates (23) and the center plate (25) is slidably connected inside the box (11), a lifting structure (26) is provided on the center plate (25), and a debris removal structure (24) is provided on the strip plates (23); The lifting structure (26) includes a first screw (261), the first screw (261) and the center plate (25) are threadedly connected, and the lower end of the first screw (261) is fixedly connected to the output shaft of the motor (262); The impurity removal structure (24) includes a channel (243), a plurality of channels (243) are provided on the strip plate (23), the lower end of the channel (243) is in contact with a closing plug (241), and the upper end of the closing plug (241) is fixedly connected to the interior of the channel (243) via a return spring (242); The upper end surface of the strip plate (23) between two adjacent arc-shaped plates (21) in the ultrasonic cleaning device is concave, and the channel (243) is located at the lowest point of the concave surface.
2. The method for manufacturing a flexible touch display screen as claimed in claim 1, wherein: The convex surface of the arc-shaped plate (21) in the ultrasonic cleaning device faces upward, and the overall height of the arc-shaped plate (21) is located above the strip plate (23).
3. The method for manufacturing a flexible touch display screen as claimed in claim 2, wherein: An ultrasonic mechanism (1) is provided in a box (11) of the ultrasonic cleaning device. The ultrasonic mechanism (1) includes an ultrasonic generator (12). The ultrasonic generator (12) is fixedly connected to the bottom of the box (11). The upper end of the ultrasonic generator (12) is fixedly connected to a bottom plate (13). A drain valve (14) is provided on one side of the bottom plate (13). The motor (262) is fixedly connected to the bottom of the box (11).
4. The method for manufacturing a flexible touch display screen as claimed in claim 1, wherein: A flexible screen fixing mechanism (3) is provided on a plate-like structure formed by a plurality of arc-shaped plates (21), a plurality of strip plates (23) and a central plate (25) in the ultrasonic cleaning device. The flexible screen fixing mechanism (3) includes a plurality of clamping plates (31). Both ends of the clamping plates (31) slide through a second lead screw (32). The second lead screw (32) connects the plurality of clamping plates (31) in series. The upper end of the second lead screw (32) is threadedly connected to a fixing nut (33).
5. The method for manufacturing a flexible touch display screen as claimed in claim 4, wherein: The lower end of the second lead screw (32) in the ultrasonic cleaning device is fixedly connected to a sliding plate (34), and the sliding plate (34) is slidably connected to a slide rail (35). The slide rail (35) is provided on a plate-like structure formed by a plurality of arc-shaped plates (21), a plurality of strip-shaped plates (23) and a center plate (25).
6. The method for manufacturing a flexible touch display screen as claimed in claim 1, wherein: A discharge mechanism (4) is provided on one side of the interior of the box (11) in the ultrasonic cleaning device. The discharge mechanism (4) includes an upper cover (43), which is fixedly connected to the inner wall of the box (11). The upper cover (43) is located above the bottom plate (13). The upper cover (43), the bottom plate (13) and the inner wall of the box (11) form a space capable of accommodating impurities. One side of the upper cover (43) is sealingly and slidably connected to a side sealing plate (44), the lower end surface of the side sealing plate (44) is fixedly connected to a sealing strip (45), and the upper end surface of the side sealing plate (44) is fixedly connected to a telescopic tube (41).
7. The method for manufacturing a flexible touch display screen as claimed in claim 6, wherein: A sliding push block (46) is slidably connected to the impurity accommodating space formed by the upper cover plate (43), the bottom plate (13) and the inner wall of the box body (11) in the ultrasonic cleaning equipment. A cleaning door (49) is provided on one side of the sliding push block (46). A second drainage hole (48) and a first drainage hole (47) are respectively provided on one end of the upper cover plate (43) and the side sealing plate (44) near the cleaning door (49). An air guide tube (42) is fixedly connected to the upper cover plate (43), and the other end of the air guide tube (42) is fixedly connected to the upper end of the telescopic tube (41).
8. The method for manufacturing a flexible touch display screen as claimed in claim 7, wherein: The height of one end of the bottom plate (13) in the ultrasonic cleaning device, which is close to the discharge mechanism (4), is lower than that of the other end.