Liquid crystal photo-alignment device for liquid crystal manufacturing

Abstract

The utility model discloses a liquid crystal light alignment equipment for liquid crystal manufacturing relates to light alignment equipment technical field, this liquid crystal light alignment equipment for liquid crystal manufacturing includes workstation, the top of workstation installs the heat equalizer, the top of heat equalizer places glass substrate, the both ends of workstation top are provided with first horizontal groove, the inside rotation of first horizontal groove is connected with first threaded rod, wherein the side of first threaded rod of front end is installed with first drive motor, and the outer wall screw thread connection of two first threaded rods has first sliding block, the top of first sliding block installs the supporting plate, the top of supporting plate installs the drying -out box, the top of drying -out box installs the hot -blast oven, the top of hot -blast oven installs the fan, and the present scheme has solved the light alignment equipment of existing in the process of using and needs by different equipment to complete pre -baking, solid baking and light alignment, and needs the carrying and cleaning process of middle, leads to the problem of long -time product manufacturing.

Description

Technical Field

[0001] This utility model relates to the field of photoalignment equipment technology, specifically a liquid crystal photoalignment device for liquid crystal manufacturing. Background Technology

[0002] The existing photoalignment method for liquid crystal display panels mainly includes the following manufacturing process: First, a photoalignment liquid is coated on a glass substrate; the photoalignment liquid on the glass substrate is pre-baked using a heating device to evaporate the solvent; an alignment film is formed by solid baking; ultrasonic dry cleaning is performed to remove foreign matter from the glass substrate; the alignment film is irradiated with linearly polarized ultraviolet light; foreign matter on the photoaligned glass substrate is evaporated; and the substrate is washed with water.

[0003] In the existing production process described above, the pre-baking and curing processes are completed by heating equipment, while the photoalignment step is completed by photoalignment equipment. After the glass substrate is pre-baked and cured by heating equipment, it is usually necessary to transport the glass substrate to a storage space. When performing the photoalignment step, it is taken out of the storage space and cleaned by a cleaning machine. After cleaning, the glass substrate is irradiated with linearly polarized ultraviolet light by photoalignment equipment so that the alignment film has alignment capability.

[0004] The photoalignment methods provided by the above-mentioned prior art require different equipment to complete pre-baking, solid baking and photoalignment during use, and require intermediate handling and cleaning processes, resulting in a long product manufacturing time. Therefore, we propose a liquid crystal photoalignment device for liquid crystal manufacturing to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a liquid crystal photoalignment device for liquid crystal manufacturing, in order to solve the problem mentioned in the background art that the existing photoalignment devices require different equipment to complete the pre-baking, solid baking and photoalignment during use, and require intermediate handling and cleaning processes, resulting in a long product manufacturing time.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a liquid crystal photoalignment device for liquid crystal manufacturing, comprising a worktable, a heat spreader plate installed on the top of the worktable, a glass substrate placed on the top of the heat spreader plate, first transverse grooves provided at both ends of the top of the worktable, first threaded rods rotatably connected inside the first transverse grooves, a first drive motor installed on one side of the first threaded rod at the front end, first sliders threadedly connected to the outer walls of the two first threaded rods, a support plate installed on the top of the first sliders, a drying chamber installed on the top of the support plate, a hot air box installed on the top of the drying chamber, a fan installed on the top of the hot air box, and multiple sets of second air outlets evenly distributed at the bottom of the drying chamber.

[0007] Preferably, hot air pipes are installed at both ends of the hot air box, a diversion pipe is installed at the top inside the drying box, the other end of the hot air pipe is connected to the diversion pipe, and multiple sets of first air outlets are evenly arranged at the bottom and both sides of the diversion pipe.

[0008] Preferably, a honeycomb baffle is installed at the bottom of the interior of the drying oven.

[0009] Preferably, the worktable is provided with second transverse grooves at both ends, and second threaded rods are rotatably connected inside the second transverse grooves. A second drive motor is installed on one side of the second threaded rod at the front end. The outer walls of the two second threaded rods are threadedly connected to second sliders. A vertical plate is installed on the top of the second sliders. An ultraviolet lamp box is installed on the upper part between the two vertical plates.

[0010] Preferably, the bottom of the ultraviolet lamp box is set as an opening, an ultraviolet lamp is installed inside the ultraviolet lamp box, a reflector is installed on the inner top of the ultraviolet lamp box, and the bottom of the reflector is set as an arc.

[0011] Preferably, both ends of the ultraviolet lamp box are fixedly connected to the upright plate via fixing rods, one end of the fixing rod is fixedly connected to the ultraviolet lamp box, and the other end of the fixing rod is rotatably connected to the upright plate via a bearing.

[0012] Preferably, a large gear is installed on the outer wall of the fixed rod at the front end, and a third drive motor is installed at one end of the upper part of the upright plate at the front end. A small gear is installed on the output shaft of the third drive motor, and the large gear meshes with the small gear.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model integrates the heat spreader and the drying oven on the workbench, which can directly complete the baking at the placement position of the glass substrate without transferring it to other heating equipment. After baking, the ultraviolet lamp box can be directly switched to the working position through the moving structure composed of the second horizontal groove, the second threaded rod, the second drive motor, the second slider and the vertical plate. There is no need to transport the glass substrate to the photo-alignment equipment, eliminating intermediate transportation and waiting time. This solves the problem that the existing photo-alignment equipment requires different equipment to complete the pre-baking, solid baking and photo-alignment during use, and requires intermediate transportation and cleaning processes, resulting in a long product manufacturing time.

[0015] (2) The hot air is initially dispersed through the multi-directional first air outlet of the split pipe, and the airflow is further homogenized through the honeycomb guide plate. With the stable conduction of the heat spreader, the surface temperature difference of the glass substrate can be effectively reduced, avoiding local under-baking or over-baking.

[0016] (3) The rotation adjustment of the ultraviolet lamp box can adapt to the different requirements of alignment angle for different display modes, and can complete the processing of multiple types of glass substrates without changing equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a front cross-sectional view of the present invention.

[0019] Figure 3 This is a schematic diagram of the right-side cross-sectional structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the left-side cross-sectional structure of this utility model;

[0021] In the diagram: 1. Workbench; 2. Heat spreader; 3. Glass substrate; 4. First transverse groove; 5. First threaded rod; 6. First drive motor; 7. First slider; 8. Support plate; 9. Drying oven; 10. Fan; 11. Hot air box; 12. Hot air duct; 13. Diverter pipe; 14. First air outlet; 15. Second air outlet; 16. Honeycomb guide plate; 17. Second transverse groove; 18. Second threaded rod; 19. Second drive motor; 20. Second slider; 21. Vertical plate; 22. Ultraviolet lamp box; 23. Ultraviolet lamp; 24. Reflector; 25. Fixing rod; 26. Bearing; 27. Large gear; 28. Third drive motor; 29. ​​Small gear. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4 This utility model provides an embodiment of a liquid crystal photoalignment device for liquid crystal manufacturing, comprising a worktable 1, a heat spreader 2 mounted on the top of the worktable 1, a glass substrate 3 placed on the top of the heat spreader 2, first transverse grooves 4 at both ends of the top of the worktable 1, first threaded rods 5 rotatably connected inside the first transverse grooves 4, a first drive motor 6 mounted on one side of the first threaded rod 5 at the front end, first sliders 7 threadedly connected to the outer walls of the two first threaded rods 5, a support plate 8 mounted on the top of the first sliders 7, a drying chamber 9 mounted on the top of the support plate 8, a hot air box 11 mounted on the top of the drying chamber 9, a fan 10 mounted on the top of the hot air box 11, and multiple sets of second air outlets 15 evenly distributed at the bottom of the drying chamber 9. (Please refer to...) Figure 3Hot air ducts 12 are installed at both ends of the hot air box 11. A distribution pipe 13 is installed at the top inside the drying chamber 9. The other end of the hot air duct 12 is connected to the distribution pipe 13. Multiple sets of first air outlets 14 are evenly arranged at the bottom and both sides of the distribution pipe 13. Please refer to... Figure 2 A honeycomb baffle plate 16 is installed at the bottom inside the drying oven 9. When the glass substrate 3 needs to be pre-baked, the glass substrate 3 is first placed on the heat spreader 2 on top of the workbench 1. The heat spreader 2 provides a stable heat source for the glass substrate 3 through its own heat conduction. At the same time, the fan 10 is turned on, and the outside air is drawn into the hot air box 11 and heated by the internal heating wire to form hot air. The hot air enters the distribution pipe 13 inside the drying oven 9 through the hot air pipe 12. The multiple sets of first air outlets 14 at the bottom and sides of the distribution pipe 13 initially disperse the hot air to avoid the hot air concentrating on a single area. The dispersed hot air flows downward through the honeycomb baffle plate 16. The honeycomb structure inside the honeycomb baffle plate 16 can further divide the airflow into uniform parallel airflows, which finally pass through the drying oven. The second air outlet 15, evenly distributed at the bottom of the 9th layer, blows vertically onto the surface of the glass substrate 3, ensuring uniform surface temperature and preventing localized solvent residue or uneven polymerization. The first drive motor 6 is activated, driving the first threaded rod 5 at the front end to rotate, which in turn moves the first slider 7 at the front end. Through the fixed connection between the support plate 8 and the drying chamber 9, and the rotational connection of the first threaded rod 5, the first slider 7 at the rear end can move synchronously, thereby moving the drying chamber 9 horizontally and preventing angular displacement during movement. The position of the drying chamber 9 can be adjusted according to the size of the glass substrate 3 or baking requirements, covering the entire area of ​​the glass substrate 3. (See also...) Figure 1 and Figure 3 The workbench 1 has second transverse grooves 17 at both ends, and second threaded rods 18 are rotatably connected inside the second transverse grooves 17. A second drive motor 19 is installed on one side of the front end of the second threaded rod 18. Second sliders 20 are threadedly connected to the outer walls of the two second threaded rods 18. A vertical plate 21 is installed on the top of the second slider 20, and an ultraviolet lamp box 22 is installed in the upper part between the two vertical plates 21. Please refer to [link / reference]. Figure 2The bottom of the ultraviolet lamp box 22 is open, and an ultraviolet lamp 23 is installed inside the ultraviolet lamp box 22. A reflector 24 is installed on the top inner part of the ultraviolet lamp box 22, and the bottom of the reflector 24 is arc-shaped. After the glass substrate 3 is baked, the second threaded rod 18 at the front end is driven to rotate by the second drive motor 19, which drives the second slider 20 at the front end to move. Through the fixed connection of the upright plate 21, the ultraviolet lamp box 22 and the fixed rod 25, and the rotational connection of the second threaded rod 18, the second slider 20 at the rear end can be driven to move synchronously, thereby driving the ultraviolet lamp box 22 to move horizontally to directly above the glass substrate 3. After the ultraviolet lamp 23 is turned on, it emits ultraviolet light. The arc-shaped reflector 24 at the top inner part of the ultraviolet lamp box 22 reflects and converges the diffused ultraviolet light, so that the ultraviolet light is concentrated on the alignment film on the surface of the glass substrate 3. The arc-shaped design of the reflector 24 can reduce the light intensity attenuation and ensure that the ultraviolet light intensity on the glass substrate 3 is consistent. The horizontal movement of the ultraviolet lamp box 22 can cover the entire area of ​​the glass substrate 3.

[0024] Please see Figure 4 The two ends of the ultraviolet lamp box 22 are fixedly connected to the upright plate 21 via fixing rods 25. One end of the fixing rod 25 is fixedly connected to the ultraviolet lamp box 22, and the other end of the fixing rod 25 is rotatably connected to the upright plate 21 via a bearing 26. Please refer to [link / reference]. Figure 4 A large gear 27 is mounted on the outer wall of the front-end fixing rod 25, and a third drive motor 28 is mounted on one end of the upper part of the front-end upright plate 21. A small gear 29 is mounted on the output shaft of the third drive motor 28, and the large gear 27 and the small gear 29 are meshed together. When the third drive motor 28 is started, it drives the small gear 29 to rotate. Through the meshing transmission between the small gear 29 and the large gear 27, the fixing rod 25 and the ultraviolet lamp box 22 can be rotated, which can adjust the irradiation angle of the ultraviolet lamp 23, thereby changing the angle between the ultraviolet light and the glass substrate 3 and improving the alignment adaptability.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A liquid crystal photoalignment device for liquid crystal manufacturing, comprising a worktable (1), characterized in that: A heat spreader plate (2) is installed on the top of the workbench (1), and a glass substrate (3) is placed on the top of the heat spreader plate (2). A first transverse groove (4) is provided at both ends of the top of the workbench (1). A first threaded rod (5) is rotatably connected inside the first transverse groove (4). A first drive motor (6) is installed on one side of the first threaded rod (5) at the front end. A first slider (7) is threadedly connected to the outer wall of the two first threaded rods (5). A support plate (8) is installed on the top of the first slider (7). A drying box (9) is installed on the top of the support plate (8). A hot air box (11) is installed on the top of the drying box (9). A fan (10) is installed on the top of the hot air box (11). Multiple sets of second air outlets (15) are provided at the bottom of the drying box (9). Multiple sets of second air outlets (15) are evenly distributed at the bottom of the drying box (9).

2. The liquid crystal photoalignment device for liquid crystal manufacturing according to claim 1, characterized in that: Hot air pipes (12) are installed at both ends of the hot air box (11), and a diversion pipe (13) is installed at the top inside the drying box (9). The other end of the hot air pipe (12) is connected to the diversion pipe (13). Multiple sets of first air outlets (14) are evenly arranged at the bottom and sides of the diversion pipe (13).

3. The liquid crystal photoalignment apparatus for liquid crystal manufacturing according to claim 1, characterized in that: A honeycomb baffle plate (16) is installed at the bottom inside the drying oven (9).

4. The liquid crystal photoalignment apparatus for liquid crystal manufacturing according to claim 1, characterized in that: The workbench (1) has a second transverse groove (17) at both ends. The second transverse groove (17) is rotatably connected to a second threaded rod (18). A second drive motor (19) is installed on one side of the second threaded rod (18) at the front end. The outer walls of the two second threaded rods (18) are threadedly connected to a second slider (20). A vertical plate (21) is installed on the top of the second slider (20). An ultraviolet lamp box (22) is installed on the upper part between the two vertical plates (21).

5. A liquid crystal photoalignment apparatus for liquid crystal manufacturing according to claim 4, characterized in that: The bottom of the ultraviolet lamp box (22) is set as an opening, an ultraviolet lamp (23) is installed inside the ultraviolet lamp box (22), a reflector (24) is installed on the inner top of the ultraviolet lamp box (22), and the bottom of the reflector (24) is set as an arc.

6. A liquid crystal photoalignment apparatus for liquid crystal manufacturing according to claim 4, characterized in that: The two ends of the ultraviolet lamp box (22) are fixedly connected to the upright plate (21) by fixing rods (25). One end of the fixing rod (25) is fixedly connected to the ultraviolet lamp box (22), and the other end of the fixing rod (25) is rotatably connected to the upright plate (21) by bearings (26).

7. A liquid crystal photoalignment apparatus for liquid crystal manufacturing according to claim 6, characterized in that: A large gear (27) is installed on the outer wall of the fixed rod (25) at the front end, and a third drive motor (28) is installed at one end of the upper part of the upright plate (21) at the front end. A small gear (29) is installed on the output shaft of the third drive motor (28), and the large gear (27) meshes with the small gear (29).

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