Structure for improving four bright edges of module and preparation method thereof

Abstract

The invention relates to the technical field of backlight sources, and discloses a preparation method for improving a structure of bright edges on four sides of a module, which comprises the following steps of: cutting an optical film by using cutting equipment, and loading the cut optical film on a light guide plate. By enlarging the size of the light guide plate, designing the bosses on the edge of the light guide plate and replacing an original rubber frame to fiber the optical film, the problem that the optical film and the edge of the light guide plate are too close to a visual area, and consequently the strabismus bright edge occurs is solved, assembly is fast and convenient, and cost is low.

Description

Technical Field

[0001] The present invention relates to the technical field of backlight sources, and in particular to an improved module four-side bright edge structure and a preparation method thereof. Background Art

[0002] Most of the existing backlight modules are equipped with a rubber frame, which serves as a limiting structure for the optical film and the light guide plate to play a positioning and limiting role. However, since the rubber frame has injection-molded plastic parts and has certain thickness and width requirements for molding, the appearance of many narrow-frame projects, optical films, and light guide plates is limited and narrow, which is prone to bright edge problems. For this reason, we propose a method for improving the bright edge structure of the four sides of the module and a preparation method thereof. Summary of the invention

[0003] In order to solve the technical problem that the existing backlight module is prone to bright edge problems, the present invention provides a structure for improving the bright edges of four sides of the module and a preparation method thereof.

[0004] The present invention is implemented by the following technical solution: A preparation method for improving the bright edge structure of four sides of a module, comprising the following steps:

[0005] S1: Use cutting equipment to cut the optical film;

[0006] S2: Loading the cut optical film onto the light guide plate.

[0007] As a further improvement of the above scheme, the cutting equipment includes a processing table, a support plate 1 is fixed at one end of the processing table, a support plate 2 is fixed at the other end of the processing table, a lower driving shaft is provided on one side of the processing table, an upper driving shaft is provided above the lower driving shaft, a lower driving roller is fixedly sleeved on the outer wall of the lower driving shaft, an upper driving roller is fixedly sleeved on the outer wall of the upper driving shaft, and a cutting component is provided above the processing table. Through the operation of the above components, the optical film can be transported to the processing table, and the optical film on the processing table can be cut.

[0008] As a further improvement of the above scheme, the top side of the lower driving roller is at the same horizontal height as the top side of the processing table, and the lower driving shaft and the upper driving shaft are located between support plate one and support plate two. The optical film located between the lower driving roller and the upper driving roller can be transported to the processing table through the lower driving roller and the processing table being at the same horizontal height.

[0009] As a further improvement of the above scheme, one end of the lower driving shaft is rotatably connected to support plate 1, the other end of the lower driving shaft is transmission-connected to motor 1, and motor 1 is fixed to support plate 2. One end of the upper driving shaft close to support plate 2 is transmission-connected to motor 2, and both ends of the upper driving shaft are provided with fixed blocks, and motor 2 is fixed to the fixed block located at one end of the upper driving shaft, and one end of the upper driving shaft away from motor 2 is rotatably connected to the fixed block located at the other end of the upper driving shaft, and a plurality of hydraulic cylinders 1 are provided above the fixed blocks, and the hydraulic cylinders 1 The piston end is fixed on the adjacent fixed block, the hydraulic cylinder 1 located at one end of the upper drive shaft is fixed on the support plate 1, and the hydraulic cylinder 1 located at the other end of the upper drive shaft is fixed on the support plate 2. The operation of the motor 1 can drive the lower drive shaft to rotate, and the operation of the motor 2 can drive the upper drive shaft to rotate. The operation of the hydraulic cylinder 1 can drive the fixed block to move vertically, and drive the motor 2, the upper drive shaft and the upper drive roller to move vertically. At this time, the distance between the lower drive roller and the upper drive roller can be adjusted according to the thickness of the optical film.

[0010] As a further improvement of the above scheme, the cutting assembly comprises a mounting plate arranged above the processing table, the mounting plate is provided with a slide slot, the interior of the slide slot is slidably connected with a loading block, a cutting knife is fixed to the bottom of the loading block, and sliding slots are provided on the inner walls at both ends of the slide slot, the interior of the sliding slot is slidably connected with a sliding block fixed on the loading block, a linkage plate is provided at both ends of the mounting plate, a pressure plate is fixed at both ends of the linkage plate, a plurality of positioning holes are provided at both ends of the mounting plate, a positioning rod is slidably penetrated inside the positioning hole, the two ends of the positioning rod are respectively fixed to adjacent pressure plates, a return spring is provided on the external movable sleeve of the positioning rod, a hydraulic cylinder 2 is provided on the side of the loading block away from the cutting knife, a piston end of the hydraulic cylinder 2 is fixed on the loading block, a driving frame is provided on one side of the hydraulic cylinder 2, a plurality of transmission blocks are fixed on one end of the driving frame close to the hydraulic cylinder 2, and the end of the transmission block away from the driving frame is fixed on the hydraulic cylinder 2 The cam is provided with a plurality of teeth on the inner walls of both sides of the driving frame, and a connecting shaft 1 is slidably penetrated inside the driving frame, and the outer wall of the connecting shaft 1 is fixedly sleeved with a half gear rotating inside the driving frame, and the half gear meshes with the meshing teeth inside the driving frame, and the supporting plate 2 is provided with a plurality of mounting holes, and the mounting holes are slidably penetrated with a mounting block fixed on the driving frame. A connecting shaft 2 is provided on one side of the lower driving shaft, and a driving gear 1 is fixedly sleeved on the outer wall of the connecting shaft 2, and a driving gear 2 meshing with the driving gear 1 is fixedly sleeved on the outer wall of the lower driving shaft, and a driving gear 2 meshing with the driving gear 1 is fixedly sleeved on the outer wall of the connecting shaft 1 and the outer wall of the connecting shaft 2 are both fixedly sleeved with a transmission wheel, and a transmission belt matched with the transmission wheel is provided on the outside of the transmission wheel. Through the operation of the above components, the optical film on the processing table can be fixed, and the cutting knife can be driven to perform reciprocating horizontal displacement, thereby effectively cutting the optical film on the processing table and improving the cutting range of the cutting knife.

[0011] As a further improvement of the above solution, one end of the return spring is fixed on the mounting plate, and the other end of the return spring is fixed on the adjacent pressure plate. The elasticity of the return spring can push the displaced pressure plate to perform a return displacement.

[0012] As a further improvement of the above solution, both ends of the connecting shaft 1 are rotatably connected with a fixing plate 1, and the fixing plate 1 is fixed on a supporting plate 2. The connecting shaft 1 can be supported by the fixing plate 1.

[0013] As a further improvement of the above solution, two ends of the connecting shaft 2 are rotatably connected with a fixing plate 2, and the fixing plate 2 is fixed on a supporting plate 2. The connecting shaft 2 can be supported by the fixing plate 2.

[0014] As a further improvement of the above scheme, the cutting knife is located above the processing table, and the distance between the pressure plate close to the processing table and the processing table is smaller than the distance between the cutting knife and the processing table. The optical film on the top of the processing table can be effectively cut by the cutting knife located above the processing table.

[0015] An improved bright edge structure on four sides of a module, wherein the light guide plate is provided with a boss, and an optical film is provided inside the boss. Through the cooperation of the above components, the bright edge problem at a large viewing angle can be avoided.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention enlarges the size of the light guide plate, designs a boss at the edge of the light guide plate, and replaces the original rubber frame to fiberize the optical film, thereby avoiding the problem of squinting bright edges caused by the optical film and the edge of the light guide plate being too close to the viewing area. The assembly is not only quick and convenient, but also low in cost.

[0018] 2. The present invention can rapidly and continuously cut optical films, and can adaptively adjust the cutting equipment according to the thickness of the optical film, so as to cut optical films of different thicknesses within a certain range. The cut optical films can be limited to avoid the displacement of the optical films during the cutting process, thereby improving the cutting accuracy. During the cutting process of the optical film, the cutting tool can be driven to move, thereby increasing the cutting range of the cutting tool, and the working performance is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of a structure for improving the bright edge structure of the four sides of the module;

[0020] Figure 2 A schematic diagram of a cutting device in a method for preparing a bright edge structure on four sides of a module;

[0021] Figure 3 is a schematic diagram of a drive frame in a cutting device;

[0022] Figure 4 is a schematic diagram of a fixing block in a cutting device;

[0023] Figure 5 is a schematic diagram of a press plate in a cutting device;

[0024] Figure 6 A cross-sectional view of a mounting plate in a cutting device;

[0025] Figure 7 It is a schematic diagram of the structure of the mounting plate in the cutting equipment.

[0026] Description of main symbols:

[0027] 1. Processing table; 2. Support plate 1; 3. Support plate 2; 4. Lower drive shaft; 5. Lower drive roller; 6. Upper drive shaft; 7. Upper drive roller; 8. Mounting plate; 9. Slide; 10. Loading block; 11. Cutter; 12. Hydraulic cylinder 2; 13. Positioning rod; 14. Press plate; 15. Interlocking plate; 16. Return spring; 17. Fixed block; 18. Hydraulic cylinder 1; 19. Drive frame; 20. Connecting shaft 1; 21. Half gear; 22. Transmission block; 23. Drive gear 2; 24. Drive gear 1; 25. Fixed plate 1; 26. Fixed plate 2; 27. Optical film; 28. Light guide plate. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0029] Embodiment 1:

[0030] A preparation method for improving the bright edge structure of four sides of a module according to this embodiment includes the following steps:

[0031] S1: cutting the optical film 27 using a cutting device;

[0032] S2: Loading the cut optical film 27 on the light guide plate 28 .

[0033] Embodiment 2:

[0034] Combination Figure 2 and Figure 3On the basis of Example 1, the present embodiment is further improved in that: the cutting equipment comprises a processing table 1, a support plate 1 2 is fixed at one end of the processing table 1, a support plate 2 3 is fixed at the other end of the processing table 1, a lower driving shaft 4 is provided on one side of the processing table 1, an upper driving shaft 6 is provided above the lower driving shaft 4, a lower driving roller 5 is fixedly sleeved on the outer wall of the lower driving shaft 4, an upper driving roller 7 is fixedly sleeved on the outer wall of the upper driving shaft 6, and a cutting assembly is provided above the processing table 1. When it is necessary to cut the optical film 27, the optical film 27 can be placed between the lower driving roller 5 and the upper driving roller 7, and the lower driving roller 5 and the upper driving roller 7 are driven to rotate by the rotation of the lower driving shaft 4 and the upper driving shaft 6, so as to drive the optical film 27 between the lower driving roller 5 and the upper driving roller 7 to move onto the processing table 1, and the optical film 27 on the processing table 1 is cut by the cutting assembly.

[0035] The top side of the lower driving roller 5 is at the same horizontal height as the top side of the processing table 1, and the lower driving shaft 4 and the upper driving shaft 6 are located between the support plate 1 2 and the support plate 2 3. The optical film 27 located between the lower driving roller 5 and the upper driving roller 7 can be transported to the processing table 1 through the lower driving roller 5 and the processing table 1 which are at the same horizontal height.

[0036] Embodiment 3:

[0037] Combination Figure 4 On the basis of Example 2, this embodiment is further improved in that: one end of the lower driving shaft 4 is rotatably connected to the support plate 1 2, the other end of the lower driving shaft 4 is transmission-connected with motor 1, which is a forward and reverse stepping motor, and is fixed on the support plate 2 3, and one end of the upper driving shaft 6 close to the support plate 2 3 is transmission-connected with motor 2, which is a forward and reverse stepping motor, and both ends of the upper driving shaft 6 are provided with fixed blocks 17, and motor 2 is fixed on the fixed block 17 located at one end of the upper driving shaft 6, and the end of the upper driving shaft 6 away from motor 2 is rotationally connected to the fixed block 17 located at the other end of the upper driving shaft 6, and a plurality of hydraulic Cylinder 18, the piston end of hydraulic cylinder 18 is fixed on the adjacent fixed block 17, the hydraulic cylinder 18 located at one end of the upper drive shaft 6 is fixed on the support plate 2, and the hydraulic cylinder 18 located at the other end of the upper drive shaft 6 is fixed on the support plate 2 3. Through the operation of motor 1, the lower drive shaft 4 can be driven to rotate, and through the operation of motor 2, the upper drive shaft 6 can be driven to rotate. Through the operation of hydraulic cylinder 18, the fixed block 17 is driven to perform vertical displacement, and the motor 2, the upper drive shaft 6 and the upper drive roller 7 are driven to perform vertical displacement. At this time, the distance between the lower drive roller 5 and the upper drive roller 7 can be adjusted according to the thickness of the optical film 27.

[0038] Embodiment 4:

[0039] Combination Figure 5 , Figure 6and Figure 7 On the basis of Example 2, the present embodiment is further improved in that: the cutting assembly includes a mounting plate 8 arranged above the processing table 1, the mounting plate 8 is provided with a slide groove 9, the interior of the slide groove 9 is slidably connected with a loading block 10, a cutting knife 11 is fixed to the bottom of the loading block 10, the inner walls of the two ends of the slide groove 9 are provided with sliding grooves, the interior of the sliding groove is slidably connected with a sliding block fixed on the loading block 10, the two ends of the mounting plate 8 are provided with a linkage plate 15, the two ends of the linkage plate 15 are fixed with a pressing plate 14, a plurality of positioning holes are provided at the two ends of the mounting plate 8, a positioning rod 13 is slidably penetrated inside the positioning hole, the two ends of the positioning rod 13 are respectively fixed on the adjacent pressing plates 14, the external movable sleeve of the positioning rod 13 is provided with a reset spring 16, the loading block 10 is away from A hydraulic cylinder 2 12 is provided on one side of the cutting knife 11, and the piston end of the hydraulic cylinder 2 12 is fixed on the loading block 10. A driving frame 19 is provided on one side of the hydraulic cylinder 2 12. A plurality of transmission blocks 22 are fixed on one end of the driving frame 19 close to the hydraulic cylinder 2 12, and an end of the transmission block 22 away from the driving frame 19 is fixed on the hydraulic cylinder 2 12. A plurality of teeth are fixed on the inner walls on both sides of the driving frame 19, and a connecting shaft 20 is slidably penetrated inside the driving frame 19, and a half gear 21 rotating inside the driving frame 19 is fixedly sleeved on the outer wall of the connecting shaft 20, and the half gear 21 is meshed with the teeth inside the driving frame 19. A plurality of mounting holes are provided on the support plate 2 3, and a mounting block fixed on the driving frame 19 is slidably penetrated inside the mounting hole, and a lower driving shaft 4 is provided on one side. Connecting shaft 2, the outer wall of connecting shaft 2 is fixedly sleeved with a driving gear 1 24, the outer wall of the lower driving shaft 4 is fixedly sleeved with a driving gear 23 meshing with the driving gear 1 24, the outer wall of the connecting shaft 1 20 and the outer wall of the connecting shaft 2 are fixedly sleeved with a transmission wheel, and the outside of the transmission wheel is provided with a transmission belt that cooperates with the transmission wheel. When the optical diaphragm 27 moves to the top side of the processing table 1, the operation of the hydraulic cylinder 2 12 drives the loading block 10 to move vertically downward, and drives the mounting plate 8, the cutting knife 11, the positioning rod 13, the pressing plate 14 and the linkage plate 15 to move vertically downward. When the pressing plate 14 contacts the optical diaphragm 27, the optical diaphragm 27 is fixed on the processing table 1 by the pressing plate 14, and the cutting knife 11 continues to move vertically downward. When the cutting knife 11 contacts the optical film 27 on the processing table 1, the optical film 27 on the processing table 1 can be cut by the displaced cutting knife 11. When the lower driving shaft 4 rotates, the driving gear 23 will be driven to rotate, the driving gear 1 24 will be driven to rotate, and the connecting shaft 2 will be driven to rotate. Through the transmission cooperation of the transmission wheel and the transmission belt, the connecting shaft 1 20 will be driven to rotate, the half gear 21 will be driven to rotate, the driving frame 19 will be driven to reciprocate horizontally, and the transmission block 22, the hydraulic cylinder 2 12, the loading block 10 and the cutting knife 11 will be driven to reciprocate horizontally. The optical film 27 on the processing table 1 is effectively cut, and the cutting range of the cutting knife 11 is increased.

[0040] One end of the return spring 16 is fixed on the mounting plate 8 , and the other end of the return spring 16 is fixed on the adjacent pressing plate 14 . The elasticity of the return spring 16 can push the displaced pressing plate 14 to perform a return displacement.

[0041] The two ends of the connecting shaft 20 are rotatably connected with a fixing plate 25, and the fixing plate 25 is fixed on the supporting plate 2 3. The connecting shaft 20 can be supported by the fixing plate 25.

[0042] The two ends of the second connecting shaft are rotatably connected with the second fixing plate 26 , and the second fixing plate 26 is fixed on the second supporting plate 3 . The second connecting shaft can be supported by the second fixing plate 26 .

[0043] The cutting knife 11 is located above the processing table 1. The distance between the pressure plate 14 close to the processing table 1 and the processing table 1 is smaller than the distance between the cutting knife 11 and the processing table 1. The cutting knife 11 located above the processing table 1 can effectively cut the optical film 27 on the top of the processing table 1.

[0044] Embodiment 5:

[0045] Combination Figure 1 An improved bright edge structure on all four sides of the module is provided. A boss is provided on the light guide plate 28. An optical film 27 is provided inside the boss. The size of the light guide plate 28 is expanded outward, and a boss is designed on the edge to replace the original rubber frame. At the same time, the size of the optical film 27 is expanded outward to avoid the bright edge problem at a large viewing angle.

[0046] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A method for improving the bright edge structure of four sides of a module, comprising the following steps: S1: Use cutting equipment to cut the optical film; S2: Loading the cut optical film onto the light guide plate; The cutting equipment includes a processing table, a support plate 1 is fixed at one end of the processing table, a support plate 2 is fixed at the other end of the processing table, a lower driving shaft is provided on one side of the processing table, an upper driving shaft is provided above the lower driving shaft, a lower driving roller is fixedly sleeved on the outer wall of the lower driving shaft, an upper driving roller is fixedly sleeved on the outer wall of the upper driving shaft, and a cutting component is provided above the processing table.

2. A method for improving the bright edge structure of four sides of a module as claimed in claim 1, characterized in that: The top side of the lower driving roller is at the same level as the top side of the processing table, and the lower driving shaft and the upper driving shaft are located between the first support plate and the second support plate.

3. A method for improving the bright edge structure of four sides of a module as claimed in claim 1, characterized in that: One end of the lower driving shaft is rotatably connected to support plate 1, and the other end of the lower driving shaft is transmission connected to motor 1, and motor 1 is fixed on support plate 2. One end of the upper driving shaft close to support plate 2 is transmission connected to motor 2, and fixed blocks are provided at both ends of the upper driving shaft, and motor 2 is fixed to the fixed block located at one end of the upper driving shaft, and the end of the upper driving shaft away from motor 2 is rotatably connected to the fixed block located at the other end of the upper driving shaft, and multiple hydraulic cylinders 1 are provided above the fixed block, and the piston ends of the hydraulic cylinders 1 are fixed to adjacent fixed blocks, the hydraulic cylinder 1 located at one end of the upper driving shaft is fixed to support plate 1, and the hydraulic cylinder 1 located at the other end of the upper driving shaft is fixed to support plate 2.

4. A method for improving the bright edge structure of four sides of a module as claimed in claim 1, characterized in that: The cutting assembly comprises a mounting plate arranged above the processing table, the mounting plate is provided with a slide groove, the interior of the slide groove is slidably connected with a loading block, a cutting knife is fixed to the bottom of the loading block, the inner walls at both ends of the slide groove are provided with sliding grooves, the interior of the sliding groove is slidably connected with a sliding block fixed on the loading block, the two ends of the mounting plate are provided with a linkage plate, the two ends of the linkage plate are fixed with a pressure plate, the two ends of the mounting plate are provided with a plurality of positioning holes, the interior of the positioning holes is slidably penetrated with a positioning rod, the two ends of the positioning rod are respectively fixed to adjacent pressure plates, the external movable sleeve of the positioning rod is provided with a return spring, a hydraulic cylinder 2 is provided on the side of the loading block away from the cutting knife, the piston end of the hydraulic cylinder 2 is fixed on the loading block, a driving frame is provided on one side of the hydraulic cylinder 2, and the driving frame is close to the hydraulic cylinder 2. A plurality of transmission blocks are fixed at one end, and an end of the transmission block away from the driving frame is fixed on the hydraulic cylinder 2, and a plurality of meshing teeth are fixed on the inner walls of both sides of the driving frame, and a connecting shaft 1 is slidably penetrated inside the driving frame, and a half gear rotating inside the driving frame is fixedly sleeved on the outer wall of the connecting shaft 1, and the half gear meshes with the meshing teeth inside the driving frame, and a plurality of mounting holes are opened on the support plate 2, and a mounting block fixed on the driving frame is slidably penetrated inside the mounting holes, and a connecting shaft 2 is provided on one side of the lower driving shaft, and a driving gear 1 is fixedly sleeved on the outer wall of the connecting shaft 2, and a driving gear 2 meshing with the driving gear 1 is fixedly sleeved on the outer wall of the lower driving shaft, and a transmission wheel is fixedly sleeved on the outer wall of the connecting shaft 1 and the outer wall of the connecting shaft 2, and a transmission belt matched with the transmission of the transmission wheel is provided on the outside of the transmission wheel.

5. A method for improving the bright edge structure of four sides of a module as claimed in claim 4, characterized in that: One end of the return spring is fixed on the mounting plate, and the other end of the return spring is fixed on the adjacent pressing plate.

6. A method for improving the bright edge structure of four sides of a module as claimed in claim 4, characterized in that: The two ends of the connecting shaft 1 are rotatably connected with a fixing plate 1, and the fixing plate 1 is fixed on a supporting plate 2.

7. A method for improving the bright edge structure of four sides of a module as claimed in claim 4, characterized in that: Two ends of the second connecting shaft are rotatably connected with a second fixing plate, and the second fixing plate is fixed on a second supporting plate.

8. A method for improving the bright edge structure of four sides of a module as claimed in claim 4, characterized in that: The cutting knife is located above the processing table, and the distance between the pressing plate close to the processing table and the processing table is smaller than the distance between the cutting knife and the processing table.

9. The method for improving the bright edge structure of four sides of a module as claimed in claim 1, characterized in that: The light guide plate is provided with a boss, and an optical film is arranged inside the boss.

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