Manufacturing and production process of LED backlight source
By using positioning grooves and rolling devices in LED backlight manufacturing, high-precision and low-cost bonding of LED beads and LED strips is achieved, solving the problems of high cost and low precision in existing technologies and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-26
- Publication Date
- 2026-04-14
AI Technical Summary
In current LED backlight manufacturing, the adhesion of LED beads and LED strips requires costly mechanical methods combined with automation or low-precision manual application, making it difficult to achieve low-cost and high-precision adhesion.
By employing a positioning device and a rolling device, and by setting a positioning groove with a matching width on the positioning strip, and utilizing the linkage gear and flexible layer of the rolling device, the LED bead strip and LED strip are precisely positioned and pressed together.
It reduced the cost of automated equipment, improved the bonding accuracy and efficiency, reduced the defect rate, protected the integrity of the LED beads, and improved production efficiency and product quality.
Smart Images

Figure CN121865775A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of LED backlight manufacturing technology, and in particular to an LED backlight manufacturing process. Background Technology
[0002] LED backlight power supply is a core power supply device designed specifically for LED backlight systems. Its function is to convert the input AC or DC power into stable and efficient DC power, providing precise voltage and current control for LED chips, thereby ensuring uniform backlight display effect, adjustable brightness and long life.
[0003] In the prior art, during the assembly of LED lamp beads in the production of LED backlight power supplies, it is necessary to adhere the lamp bead strips to the light strip. Since the lamp bead strips are very thin, it is necessary to ensure that the two sides are aligned with the two ends of the light strip during adhesion. The mechanical perspective combined with automation method currently used is too expensive, while manual adhesion has low accuracy. Therefore, this application proposes an LED backlight manufacturing process that ensures low cost while ensuring adhesion accuracy. Summary of the Invention
[0004] In view of the shortcomings of the existing technology, the purpose of this application is to provide an LED backlight manufacturing process to solve the technical problems in the background art.
[0005] The above-mentioned objective of this application is achieved through the following technical solution: an LED backlight manufacturing process, comprising the following steps: S1. Visually inspect the light strips and LED beads, and install positioning devices; S2. The LED strip and LED chip are precisely attached together using a positioning device; S3. Assemble the metal backplate, reflector, diffuser film, and brightness enhancement film of the backlight power supply assembly in a set order to generate the backlight source assembly. S4. After completing the component, test it, then package and encapsulate it or put it into use directly.
[0006] Furthermore, the positioning device in step S1 includes a positioning base and a placement plate fixedly connected to both ends of the positioning base. The upper end of the placement plate is provided with a glue tube assembly for placing the glue strip, and the bottom of the glue tube assembly is provided with a transport seat fixedly connected to the positioning base. The two ends of the transport seat are provided with positioning plates, and positioning strips are installed on the positioning plates. Positioning grooves matching the width of the LED bead strip and LED strip are opened on the positioning strips. A rolling device for pressing and bonding the LED bead strip and LED strip is provided on one side of the positioning strip.
[0007] By adopting the above technical solution, when positioning and pressing the LED strip and LED strip, the adhesive strip of the adhesive tube assembly is first glued to the LED strip. Then, the LED strip and LED strip are placed together in the positioning groove. Since the width of the positioning groove is the same as the width of the LED strip and LED strip, the two ends of the LED strip and the two ends of the LED strip will be aligned. Then, the two are pressed together by the subsequent rolling device to complete the positioning and bonding.
[0008] In this application, a positioning groove is opened in the positioning strip and then combined with a rolling device to achieve high-precision positioning. Compared with the current method of combining visual inspection with automated equipment, the cost is greatly reduced, making it more suitable for small and medium-sized manufacturing industries. At the same time, the accuracy and efficiency are greatly improved compared with manual visual inspection and bonding.
[0009] Furthermore, the positioning strip has multiple rows of positioning grooves, and the width of each row of positioning grooves is different. The positioning strip has positioning hole threads at both ends, the positioning plate has multiple sets of locking threaded holes at both ends, and the transport seat has a slot for placing the positioning strip.
[0010] By adopting the above technical solution, since the light strips are produced in multiple parallel connections, multiple sets of positioning grooves can be directly opened in this application. During positioning and bonding, the light strips can be placed in the positioning grooves together, and the LED strips can be placed on the light strips in sequence and pushed towards the rolling device to complete the simultaneous positioning and extrusion of multiple LED strips and the light strip.
[0011] Furthermore, the rolling device includes rolling plates disposed at both ends of the transport seat, a first roller and a second roller are rotatably disposed on the rolling plate, and a meshing linkage gear is fixedly disposed at the end of each of the first roller and the second roller, a drive motor for driving the first roller is disposed on the rolling plate, a groove for placing the second roller is provided on the transport seat, and a flexible layer is fixedly disposed on the outer side of each of the first roller and the second roller.
[0012] By adopting the above technical solution, the first roller is driven by a drive motor to rotate, which in turn drives the linkage gear at the end of the first roller to rotate, thereby driving the linkage gear on the second roller to rotate in the opposite direction, thus completing the extrusion and auxiliary transportation work.
[0013] By pushing the LED strip and LED strip into the first roller and the second roller, the first roller and the second roller will squeeze the LED strip and LED strip to complete the extrusion bonding work. The flexible layer on the outside of the first roller and the second roller ensures that the LEDs on the LED strip will not be damaged during the extrusion bonding process.
[0014] Furthermore, a guide block is fixedly mounted on the transport seat in the groove, one side of the guide block is in contact with the second roller, and a guide groove is provided at the upper end of the guide block.
[0015] By adopting the above technical solution, considering the actual situation, after the LED strip and LED chip are pushed into the first roller and the second roller, they may fall into the groove when they leave. If they continue to be pushed by the first roller and the second roller, the LED strip may be bent. Therefore, in this application, a guide block and a guide groove are set to guide the LED strip that has been attached to the other end to avoid it falling into the groove.
[0016] Furthermore, a pair of guide clamping plates are installed on the upper end of the transport seat, and a sliding groove is provided on the transport seat. A sliding frame that is slidably connected to the sliding groove is fixedly provided at the bottom of each clamping plate, and an adjustment component for simultaneously adjusting the guide clamping plate is provided at the bottom of the guide clamping plate.
[0017] By adopting the above technical solution, the guide clamping plate is designed to ensure that there is no deviation when the LED strip is pushed simultaneously, and that it is aligned directly with the positioning groove. Furthermore, by adjusting the components, the guide clamping plate can be adjusted according to the actual situation.
[0018] Furthermore, the adjustment assembly includes an adjustment chamber located inside the positioning and transport base. The upper end of the adjustment chamber is fixedly connected to a connecting plate. A neutral plate is fixedly installed on the connecting plate. Push springs are fixedly installed at both ends of the neutral plate. The other end of the push spring is fixedly connected to a sliding frame.
[0019] Furthermore, the adjustment assembly also includes a rotating sleeve rotatably connected to the connecting plate. Both ends of the rotating sleeve are fixedly provided with soft steel strips, and the other end of the soft steel strips is fixedly connected to the sliding frame. A rotating assembly for driving the rotating sleeve to rotate is provided on one side of the positioning base.
[0020] By adopting the above technical solution, the sliding frame is pushed outward by the pushing spring, thereby pushing the guide clamping plate at its upper end to the side away from each other. The rotating sleeve driven by the rotating component is used to pull the soft steel bar of Li Dan by rotation, thereby adjusting the distance between the guide clamping plates.
[0021] Specifically, when the guide clamping plate needs to be brought closer, the rotating assembly drives the rotating sleeve to rotate, thereby winding up the soft steel strip and pulling the sliding frames on both sides to bring the wire clamping plate at its upper end closer. Conversely, when the guide clamping plate needs to be moved away, the rotating sleeve rotates in the opposite direction, causing the soft steel strip to open. The pushing force of the spring pushes the sliding frame, thereby achieving the separation of the guide positioning plate.
[0022] Furthermore, the rotating assembly includes a rotating motor mounted on a positioning base, a pair of plug-in blocks are fixedly provided on the output end of the rotating motor, a positioning plug-in groove matching the plug-in blocks is opened on the inner side of the rotating sleeve, and a connecting seat is fixedly provided on the rotating motor, the connecting seat is installed on the positioning base by screws.
[0023] By adopting the above technical solution, the rotating sleeve is rotated by a rotating motor to achieve the adjustment of the guide positioning plate. At the same time, in this application, the rotating motor and the rotating sleeve are detachable, which facilitates installation, disassembly and maintenance.
[0024] Furthermore, the glue tube assembly includes a glue tube shaft mounted on a placement plate, a cylinder for holding glue rolls is fixedly provided in the middle of the glue tube shaft, and docking grooves are provided at both ends of the glue tube shaft, and a connecting groove that docks with the docking grooves is provided at the upper end of the placement plate.
[0025] By adopting the above technical solution, during installation, the two ends of the rubber tube shaft are joined to the connecting groove on the placement plate, and during use, the rubber strip roll is installed onto the cylinder.
[0026] In summary, this application includes the following beneficial technical effects: the positioning strip in the positioning device has multiple rows of positioning grooves with varying widths in each row, which can accommodate different specifications of light strips. It can be flexibly adjusted according to actual production needs, accurately placing the light strip in the positioning groove, and then placing the LED strips sequentially on the light strip. Simultaneously, the distance between the guide clamping plates can be flexibly adjusted by the adjusting components. The rotating sleeve is driven by a rotating motor to coil or unwind the soft steel strip, thereby pulling or pushing the sliding frame to move the guide clamping plates closer or further away. This ensures that there is no deviation when simultaneously pushing the LED strips, and that they are aligned directly with the positioning groove, effectively improving the accuracy of the assembly of the LED strips and light strip, reducing defects caused by inaccurate positioning, and improving product quality.
[0027] The rolling process offers excellent bonding and protects the LED chips: In the rolling device, a drive motor rotates the first roller, which, through a linkage gear, causes the second roller to rotate in the opposite direction. This pushes the LED strip and LED chip into the space between the first and second rollers for compression bonding. Both the first and second rollers have flexible layers on their outer sides, effectively preventing damage to the LED chips on the LED strip during the compression process, ensuring product integrity and performance. Simultaneously, the rotation of the rollers also assists in transporting the LED strip and LED chip, improving production efficiency.
[0028] The guiding design prevents product damage: A guide block is set in the groove, with one side of the guide block fitting into the second roller, and a guide groove at the top. When the LED strip and LED chip are pushed away by the first and second rollers, the guide block and guide groove guide the attached LED strip to the other end, preventing it from falling into the groove and bending, thus further protecting the product and reducing losses during production.
[0029] The overall process improves production efficiency and quality stability: This production process forms a complete and rational workflow, from the positioning and bonding of LED strips and LED beads to the assembly of backlight components and final product testing. Each step works closely together, ensuring precise positioning, excellent roll bonding, and product protection, reducing defect rates and losses during production and improving efficiency. At the same time, the standardized production process helps guarantee the consistency and stability of product quality, enabling the produced LED backlights to better meet market demands. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of the overall structure in the embodiment; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the adjustment component structure in the embodiment; Figure 4 This is a schematic diagram of the side structure of the rolling device in the embodiment; Figure 5 This is a structural diagram of the rubber sleeve assembly in the embodiment.
[0031] Reference numerals: 1. Positioning base; 11. Transport seat; 12. Groove; 13. First roller; 14. Second roller; 15. Flexible layer; 16. Guide block; 17. Rolling plate; 18. Linkage gear; 2. Placement plate; 21. Rubber cylinder shaft; 22. Cylinder; 23. Connecting groove; 24. Docking groove; 3. Positioning strip; 31. Positioning plate; 32. Positioning groove; 4. Guide positioning plate; 41. Sliding frame; 42. Connecting plate; 43. Neutral plate; 44. Rotating sleeve; 45. Soft steel strip; 46. Push spring; 47. Insertion groove; 48. Rotating motor; 49. Insertion block. Detailed Implementation
[0032] The present application will be further described in detail below with reference to the accompanying drawings.
[0033] Example, refer to Figures 1-5 An LED backlight manufacturing process includes the following steps: S1, visually inspecting the LED strip and LED bead strip, and setting up a positioning device; S2, precisely attaching the LED bead strip and LED strip together using the positioning device; S3, assembling the metal backplate, reflector, diffuser film, and brightness enhancement film of the backlight power supply assembly in a set order to generate a backlight assembly; S4, testing the completed assembly, and then packaging or putting it directly into use.
[0034] In this embodiment, the positioning device includes a positioning base 1 and a placement plate 2 fixedly connected to both ends of the positioning base. The upper end of the placement plate 2 is provided with a glue tube assembly for placing the glue strip. The bottom of the glue tube assembly is provided with a transport seat 11 fixedly connected to the positioning base 1. The two ends of the transport seat 11 are provided with positioning plates 31. Positioning strips 3 are installed on the positioning plates 31. Positioning grooves 32 that match the width of the LED bead strip and the LED strip are opened on the positioning strips 3. A rolling device for pressing and bonding the LED bead strip and the LED strip is provided on one side of the positioning strip 3.
[0035] When positioning and pressing the LED strip and LED strip, first, the adhesive strip of the adhesive tube assembly is glued to the LED strip. Then, the LED strip and LED strip are placed together in the positioning groove 32. Since the width of the positioning groove 32 is the same as the width of the LED strip and LED strip, the two ends of the LED strip and the two ends of the LED strip will be aligned. Then, the two are pressed together by the subsequent rolling device to complete the positioning and bonding.
[0036] In this application, a positioning groove 32 is opened in the positioning strip 3, and then combined with a rolling device, which can achieve high-precision positioning. Compared with the current perspective combined with automated equipment, the cost is greatly reduced, making it more suitable for small and medium-sized manufacturing industries. At the same time, the accuracy and efficiency are greatly improved compared with manual visual inspection bonding.
[0037] In this embodiment, the positioning grooves 32 on the positioning strip 3 are arranged in multiple rows, and the width of each row of positioning grooves 32 is different. The positioning strip 3 has positioning threaded holes at both ends, and the positioning plate 31 has multiple sets of locking threaded holes at both ends. The transport seat 11 has a slot for placing the positioning strip 3. Since the light strip is produced in multiple parallel strips, multiple sets of positioning grooves 32 are directly provided in this application. During positioning and bonding, the light strip can be placed in the positioning grooves 32 together, and the LED strips can be placed on the light strip in sequence and pushed towards the rolling device to complete the simultaneous positioning and extrusion of multiple LED strips and the light strip.
[0038] In this embodiment, the rolling device includes rolling plates 17 disposed at both ends of the transport seat 11. A first roller 13 and a second roller 14 are rotatably disposed on the rolling plates 17. Both the first roller 13 and the second roller 14 have meshing linkage gears 18 fixedly disposed at their ends. A drive motor for driving the first roller 13 is disposed on the rolling plates 17. A groove 12 for placing the second roller 14 is provided on the transport seat 11. Flexible layers 15 are fixedly disposed on the outer sides of both the first roller 13 and the second roller 14. The drive motor drives the first roller 13 to rotate, which in turn drives the linkage gear 18 at the end of the first roller 13 to rotate, thereby driving the linkage gear 18 on the second roller 14 to rotate in the opposite direction, thus completing the pressing and auxiliary transport work.
[0039] By pushing the LED strip and LED strip into the first roller 13 and the second roller 14, the first roller 13 and the second roller 14 will squeeze the LED strip and LED strip to complete the squeezing and bonding work. The flexible layer 15 on the outside of the first roller 13 and the second roller 14 ensures that the LEDs on the LED strip will not be damaged during the squeezing and bonding process.
[0040] In this embodiment, a guide block 16 is fixedly mounted on the transport seat 11 in the groove 12. One side of the guide block 16 is in contact with the second roller 14, and a guide groove is provided at the upper end of the guide block 16.
[0041] In practice, after the LED strip and LED light strip are pushed into the first roller 13 and the second roller 14, they may fall into the groove 12 as they leave. If they continue to be pushed by the first roller 13 and the second roller 14, the LED strip may be bent. Therefore, in this application, a guide block 16 and a guide groove are provided to guide the LED strip that has been attached to the other end, so as to avoid it falling into the groove 12.
[0042] A pair of guide clamping plates are installed on the upper end of the transport seat 11. The transport seat 11 has a sliding groove. The bottom of each clamping plate is fixedly provided with a sliding frame 41 that is slidably connected to the sliding groove. The bottom of the guide clamping plate is provided with an adjustment component for simultaneously adjusting the guide clamping plate.
[0043] The guide clamping plate is designed to ensure that there is no deviation when the LED strip is pushed simultaneously, and it can be aligned directly with the positioning slot 32. At the same time, the guide clamping plate can be adjusted according to the actual situation by adjusting the components.
[0044] The adjustment assembly includes an adjustment chamber located inside the positioning and transport base. The upper end of the adjustment chamber is fixedly connected to the connecting plate 42. A neutral plate 43 is fixedly installed on the connecting plate 42. Push springs 46 are fixedly installed at both ends of the neutral plate 43. The other end of the push spring 46 is fixedly connected to the sliding frame 41.
[0045] The adjustment assembly also includes a rotating sleeve 44 rotatably connected to the connecting plate 42. Both ends of the rotating sleeve 44 are fixedly provided with soft steel strips 45. The other end of the soft steel strips 45 is fixedly connected to the sliding frame 41. A rotating assembly for driving the rotating sleeve 44 to rotate is provided on one side of the positioning base 1.
[0046] By pushing the spring 46, the sliding frame 41 is kept pushing outward, thereby pushing the guide clamping plate at its upper end toward the opposite side. The rotating sleeve 44 driven by the rotating assembly is used to pull the soft steel bar 45 of Li Dan by rotating, thereby adjusting the distance between the guide clamping plates.
[0047] Specifically, when the guide clamping plate needs to be brought closer, the rotating assembly drives the rotating sleeve 44 to rotate, thereby winding up the soft steel strip 45, which in turn pulls the sliding frames 41 on both sides to bring the wire clamping plate at its upper end closer. Conversely, when the guide clamping plate needs to be moved away, the rotating sleeve 44 rotates in the opposite direction, causing the soft steel strip 45 to open, and the sliding frame 41 is pushed by the thrust of the spring 46, thereby achieving the separation of the guide positioning plate 431.
[0048] The rotating assembly includes a rotating motor 48 mounted on the positioning base 1. A pair of plug-in blocks are fixedly installed on the output end of the rotating motor 48. A positioning plug-in groove 47 matching the plug-in blocks is opened on the inner side of the rotating sleeve 44. A connecting seat is fixedly installed on the rotating motor 48, and the connecting seat is installed on the positioning base 1 by screws. The rotating sleeve 44 is rotated by the rotating motor 48 to realize the adjustment of the guide positioning plate 431. At the same time, in this application, the rotating motor 48 and the rotating sleeve 44 are detachable, which facilitates installation, disassembly and maintenance.
[0049] The glue roll assembly includes a glue roll shaft 21 mounted on a placement plate 2. A cylinder 22 for holding the glue roll is fixedly disposed in the middle of the glue roll shaft 21. Both ends of the glue roll shaft 21 have mating grooves 24. The upper end of the placement plate 2 has a connecting groove 23 that mates with the mating grooves 24. During installation, the mating grooves at both ends of the glue roll shaft 21 are aligned with the connecting grooves 23 on the placement plate 2. During use, the glue roll is installed onto the cylinder 22.
[0050] Specific implementation process: First, visually inspect the light strips and LED beads to ensure they meet quality requirements. Simultaneously, set up a positioning device, which includes a positioning base 1 and placement plates 2 fixedly connected to both ends of the positioning base. A rubber tube assembly is installed on the upper end of the placement plate 2 (during installation, the mating grooves 24 at both ends of the rubber tube shaft 21 are aligned with the connecting grooves 23 on the placement plate 2, and then the rubber strip roll is installed onto the cylinder 22). The bottom of the rubber tube assembly is a transport seat 11 fixedly connected to the positioning base 1. Positioning plates 31 are set at both ends of the transport seat 11, and positioning strips 3 are installed on the positioning plates 31. Multiple rows of positioning grooves 32 with varying widths are opened on the positioning strips 3, and both ends of the positioning strips 3 have threaded positioning holes. Multiple sets of locking threaded holes are opened at both ends of the positioning plates 31. Placement grooves for the positioning strips 3 are opened on the transport seat 11. A pair of guide clamping plates are installed on the upper end of the transport seat 11, and the transport seat 11 has a sliding... The moving groove, the bottom of the clamping plate is fixedly set with a sliding frame 41 that is slidably connected to the sliding groove, the positioning and transport base is set with an adjustment chamber, the upper end of the adjustment chamber is fixedly connected to the connecting plate 42, the connecting plate 42 is fixedly set with a neutral plate 43, the two ends of the neutral plate 43 are set with push springs 46, the other end of the push springs 46 is fixedly connected to the sliding frame 41, the connecting plate 42 is rotatably connected with a rotating sleeve 44, the two ends of the rotating sleeve 44 are fixedly set with soft steel strips 45, the other end of the soft steel strips 45 is fixedly connected to the sliding frame 41, a rotating assembly is installed on one side of the positioning base 1 (the rotating assembly includes a rotating motor 48 installed on the positioning base 1, the output end of the rotating motor 48 is fixedly set with a pair of plug-in blocks, the inner side of the rotating sleeve 44 is opened with a positioning plug-in groove 47 that matches the plug-in blocks, the rotating motor 48 is fixedly set with a connecting seat, and the connecting seat is installed on the positioning base 1 by screws).Next, the adhesive strip of the rubber sleeve assembly is glued to the light strip. Since multiple light strips are produced in parallel, they are placed together in the positioning groove 32. Then, the LED strips are placed on the light strip one by one. At this time, the distance between the guide clamping plates is adjusted by adjusting the assembly according to the actual situation. When the guide clamping plates need to be closer, the rotating motor 48 of the rotating assembly drives the rotating sleeve 44 to rotate, which winds up the soft steel strip 45 and pulls the sliding frames 41 on both sides to bring the upper wire clamping plates closer. When the guide clamping plates need to be moved away, the rotating sleeve 44 is rotated in the opposite direction, which opens the soft steel strip 45. The sliding frame is pushed by the thrust of the spring 46. 41. Separate the guide positioning plate 431 to ensure that the LED strip does not deviate when pushed simultaneously and is aligned with the positioning groove 32. Then, push the LED strip and LED strip assembly into the rolling device. The rolling device includes rolling plates 17 at both ends of the transport seat 11. A first roller 13 and a second roller 14 are rotatably mounted on the rolling plates 17. The ends of the first roller 13 and the second roller 14 are fixedly equipped with meshing linkage gears 18. A drive motor for driving the first roller 13 is mounted on the rolling plate 17. A groove 12 for placing the second roller 14 is provided on the transport seat 11. Flexible layers 15 are fixedly installed on the outer sides of rollers 14. A drive motor rotates the first roller 13, and the linkage gear 18 at the end of the first roller 13 drives the linkage gear 18 on the second roller 14, causing the second roller 14 to rotate in the opposite direction. This pushes the LED strip and LED light strip into the first roller 13 and the second roller 14. The first roller 13 and the second roller 14 compress the LED strip and LED light strip to complete the compression and bonding process. The flexible layers 15 ensure that the LEDs on the LED strip are not damaged during the compression process. Simultaneously, the rotation of the first roller 13 and the second roller 14 assists in transporting the LED strip and LED light strip. Furthermore, a fixed transport mechanism is provided in the groove 12. The guide block 16 on the base 11 is attached to the second roller 14 on one side. The guide block 16 has a guide groove at the upper end. When the LED strip and LED strip are pushed away by the first roller 13 and the second roller 14, the guide block 16 and the guide groove guide the attached LED strip to the other end, preventing it from falling into the groove 12 and bending. After the LED strip and LED strip are positioned, squeezed and bonded, the metal back plate, reflector, diffuser film, brightness enhancement film and other components of the backlight power supply assembly are assembled in the set order to generate the backlight assembly. Finally, the backlight assembly is tested. After passing the test, it is packaged or put into use directly.
[0051] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A manufacturing process for an LED backlight, characterized in that, Includes the following steps: S1. Visually inspect the light strips and LED beads, and install positioning devices; S2. The LED strip and LED chip are precisely attached together using a positioning device; S3. Assemble the metal backplate, reflector, diffuser film, and brightness enhancement film of the backlight power supply assembly in a set order to generate the backlight source assembly. S4. After completing the component, test it, then package and encapsulate it or put it into use directly.
2. The LED backlight manufacturing process according to claim 1, characterized in that, The positioning device in step S1 includes a positioning base (1) and a placement plate (2) fixedly connected to both ends of the positioning base. The upper end of the placement plate (2) is provided with a glue tube assembly for placing the glue strip. The bottom of the glue tube assembly is provided with a transport seat (11) fixedly connected to the positioning base (1). The two ends of the transport seat (11) are provided with positioning plates (31). Positioning strips (3) are installed on the positioning plates (31). Positioning grooves (32) matching the width of the LED bead strip and the LED strip are opened on the positioning strip (3). A rolling device for squeezing and bonding the LED bead strip and the LED strip is provided on one side of the positioning strip (3).
3. The LED backlight manufacturing process according to claim 2, characterized in that, The positioning groove (32) on the positioning strip (3) is provided in multiple rows, and the width of each row of the positioning groove (32) is different. The positioning strip (3) is provided with positioning hole threads at both ends. The positioning plate (31) is provided with multiple sets of locking threaded holes at both ends. The transport seat (11) is provided with a slot for placing the positioning strip (3).
4. The LED backlight manufacturing process according to claim 3, characterized in that, The rolling device includes rolling plates (17) disposed at both ends of the transport seat (11). A first roller (13) and a second roller (14) are rotatably disposed on the rolling plate (17). The ends of the first roller (13) and the second roller (14) are fixedly provided with intermeshing linkage gears (18). A drive motor for driving the first roller (13) is disposed on the rolling plate (17). A groove (12) for placing the second roller (14) is opened on the transport seat (11). A flexible layer (15) is fixedly disposed on the outer side of the first roller (13) and the second roller (14).
5. The LED backlight manufacturing process according to claim 4, characterized in that, A guide block (16) is fixedly mounted on the transport seat (11) in the groove (12). One side of the guide block (16) is in contact with the second roller (14), and a guide groove is provided at the upper end of the guide block (16).
6. The LED backlight manufacturing process according to claim 5, characterized in that, A pair of guide clamping plates are installed on the upper end of the transport seat (11). A sliding groove is provided on the transport seat (11). A sliding frame (41) that is slidably connected to the sliding groove is fixedly provided at the bottom of each clamping plate. An adjustment component for simultaneously adjusting the guide clamping plate is provided at the bottom of the guide clamping plate.
7. The LED backlight manufacturing process according to claim 6, characterized in that, The adjustment assembly includes an adjustment chamber located inside the positioning and transport base. The upper end of the adjustment chamber is fixedly connected to the connecting plate (42). A neutral plate (43) is fixedly installed on the connecting plate (42). Push springs (46) are fixedly installed at both ends of the neutral plate (43). The other end of the push springs (46) is fixedly connected to the sliding frame (41).
8. The LED backlight manufacturing process according to claim 7, characterized in that, The adjustment assembly also includes a rotating sleeve (44) rotatably connected to the connecting plate (42). Both ends of the rotating sleeve (44) are fixedly provided with soft steel strips (45). The other end of the soft steel strips (45) is fixedly connected to the sliding frame (41). A rotating assembly for driving the rotating sleeve (44) to rotate is provided on one side of the positioning base (1).
9. The LED backlight manufacturing process according to claim 8, characterized in that, The rotating assembly includes a rotating motor (48) mounted on a positioning base (1). A pair of plug-in blocks are fixedly provided on the output end of the rotating motor (48). A positioning plug-in groove (47) matching the plug-in blocks is opened on the inner side of the rotating sleeve (44). A connecting seat is fixedly provided on the rotating motor (48). The connecting seat is installed on the positioning base (1) by screws.
10. The LED backlight manufacturing process according to claim 9, characterized in that, The glue tube assembly includes a glue tube shaft (21) mounted on a placement plate (2). A cylinder (22) for holding glue rolls is fixedly provided in the middle of the glue tube shaft (21). Both ends of the glue tube shaft (21) are provided with docking grooves (24). The upper end of the placement plate (2) is provided with a connecting groove (23) that docks with the docking grooves (24).