A coating structure for surface processing of a light guide plate

Abstract

The utility model discloses a kind of film coating structures for light guide plate surface processing, related to film coating structure technical field, the film coating structure for light guide plate surface processing includes film coating frame body, film coating evaporator source and film coating chamber are respectively installed on the upper end of the film coating frame body, and film coating evaporator source is installed in the upper end inboard of film coating frame body;The left side of the film coating evaporator source is connected with film coating chamber;The utility model, rotary seat drives light guide plate workpiece frame rotation, let light guide plate surface all-around contact film coating steam, further strengthen film layer uniformity;Light guide plate workpiece frame is connected with the upper end snap groove of rotary seat, convenient rotary seat and light guide plate workpiece frame disassembly and assembly, cooperate continuous vacuum film coating process, improve production efficiency.

Description

Technical Field

[0001] This utility model specifically relates to the field of detection device technology, and more specifically to a coating structure for processing the surface of a light guide plate. Background Technology

[0002] In the field of display technology, the light guide plate, as a core component of the backlight module, plays a crucial role in the display effect due to its surface optical properties. To optimize the light guide plate's transmittance, uniformity, and other indicators, surface coating processes have become an important method, endowing the light guide plate with functions such as anti-glare, anti-reflection, and wear resistance. However, traditional light guide plate coating equipment has many shortcomings and struggles to meet the demands of high-quality production.

[0003] From a structural layout perspective, early equipment consisted mostly of disparate components pieced together, lacking integrated design. Each functional module was relatively independent, not only occupying a large amount of production space but also increasing the difficulty of installation and debugging, as well as later maintenance costs due to complex connections, resulting in poor production line layout flexibility. In terms of vacuum environment control, the sealing structure was rudimentary, with low efficiency in vacuum extraction and maintenance, and large fluctuations in air pressure within the chamber. This made it easy for air impurities to mix in during the coating process, causing bubbles and impurity defects in the film layer, thus reducing the optical quality of the light guide plate.

[0004] The poor synergy between the sublimation and deposition processes of the coating material is also a significant issue. In traditional equipment, the heating and sublimation of the coating material is uneven, and the gaseous material is disordered within the chamber, making it impossible to deposit precisely and evenly on the surface of the light guide plate. This results in inconsistent film thickness, affecting the uniformity of light output from the light guide plate. Furthermore, the light guide plate support mechanism is often functionally limited, being fixed in place, making it difficult to ensure that the light guide plate surface receives the coating material uniformly from all directions. This is especially problematic for large-size light guide plates, where there is a significant difference in film thickness between the edges and the center, failing to meet the high-precision requirements of high-end display products. Utility Model Content

[0005] The purpose of this utility model is to provide a coating structure for processing the surface of a light guide plate. The coating device is installed in an integrated structure with a coating chamber and a coating evaporation source, and the coating material is deposited uniformly, thereby improving production efficiency and safety. This solves the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A coating structure for processing the surface of a light guide plate, comprising:

[0008] The coating machine frame has a coating evaporation source and a coating chamber installed on its upper end, with the coating evaporation source installed on the inner side of the upper end of the coating machine frame; the left side of the coating evaporation source is connected to the coating chamber.

[0009] The coating chamber includes a main coating chamber, the upper end of which is connected to the coating cover. A rotating shaft and two latches are connected between the outer side of the upper end of the main coating chamber and the outer side of the coating cover, respectively. An observation window is provided on the front side of the main coating chamber, and an observation window is also installed on the upper surface of the coating cover.

[0010] The lower end of the coating main cavity is rotatably connected to a rotating seat, and the upper end of the rotating seat is rotatably connected to the light guide plate workpiece holder in a slotted manner. The light guide plate workpiece is mounted on the inner side of the coating main cavity. The lower end of the rotating seat is connected to a drive shaft, and the lower end of the drive shaft is connected to a drive motor.

[0011] As a further technical solution of this utility model, a steam diversion plate is installed on the right side of the inner cavity of the coating main cavity; a vacuum suction head is provided on the lower left side of the inner cavity of the coating main cavity, and the lower end of the vacuum suction head is connected to the connecting pipe.

[0012] As a further technical solution of this utility model, the lower end of the connecting pipe is connected to the vacuum pump; the lower end of the coating main cavity is fixedly installed on the upper surface of the side auxiliary cabinet, and a drive motor mounting seat is installed on the inner side of the upper end of the side auxiliary cabinet, and a drive motor is installed on the drive motor mounting seat; the vacuum pump is fixedly connected to the inner side of the lower end of the side auxiliary cabinet.

[0013] As a further technical solution of this utility model, the right side of the auxiliary cabinet is connected to the equipment base cabinet, the upper end of the equipment base cabinet is connected to the upper functional cabinet, and a warning light is installed on the upper surface of the upper functional cabinet.

[0014] As a further technical solution of this utility model, the right side of the steam diversion plate is connected to the connecting pipe, the outside of the connecting pipe is wrapped with a sublimation heater, and the other end of the connecting pipe is connected to the glass tube.

[0015] As a further technical solution of this utility model, the four corners of the lower end of the sublimation heater are all connected with fixing bolts, and the lower ends of the multiple fixing bolts are fixedly connected to the inner side of the lower end of the upper functional cabinet; the other end of the glass tube is rotatably connected to the sealing sleeve, and the inner side of the glass tube is provided with a coating material hopper.

[0016] As a further technical solution of this utility model, the glass tube and the sealing sleeve are wrapped with a heating sleeve. The lower end of the heating sleeve is placed on the mounting base, which is fixedly mounted on the mounting plate. Fixing bolts are connected to the four corners of the mounting plate. The lower ends of the multiple fixing bolts are fixedly connected to the inner side of the lower end of the upper functional cabinet. The heating sleeve is located on the right side of the sublimation heater.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this utility model, the rotating seat drives the light guide plate workpiece holder to rotate, allowing the surface of the light guide plate to come into full contact with the coating vapor, further enhancing the uniformity of the film layer; the light guide plate workpiece holder is connected to the upper end of the rotating seat by a slot, which facilitates the assembly and disassembly of the rotating seat and the light guide plate workpiece holder, and improves production efficiency in conjunction with the continuous vacuum coating process.

[0019] 2. In this utility model, the vacuum pump and vacuum suction head work together with the main coating cavity and coating cover to efficiently construct a stable vacuum environment, reduce the interference of air on the quality of the coating layer, and improve the purity and uniformity of the coating; the vapor distribution plate evenly disperses the gaseous material, avoids local excessive thickness or thinness, ensures the uniformity of the light guide plate film layer, and ensures consistent light transmission.

[0020] 3. This utility model features warning lights and observation windows that provide real-time feedback on equipment status and timely warnings of malfunctions; the cabinet structure isolates the power area from the work area, reducing operational risks and preventing personnel from directly contacting high-temperature and high-pressure components;

[0021] 4. This utility model features segmented heating of the sublimation heater and heating jacket, which precisely controls the sublimation rate of the material. By changing the material in the coating material hopper and adjusting the heating parameters and rotation speed, it can be adapted to different film layers, such as the processing of light guide plates for anti-reflective films and anti-scratch films, thus enhancing the versatility of the equipment. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This utility model Figure 1 Top view.

[0024] Figure 3 This utility model Figure 2 A schematic diagram showing the split structure.

[0025] Figure 4 This utility model Figure 3 The left view.

[0026] Figure 5 This utility model Figure 4 A schematic diagram of the split structure.

[0027] Figure 6 This utility model Figure 5 A schematic diagram of the split structure.

[0028] Figure 7 This utility model Figure 6 A schematic diagram of the split structure.

[0029] Figure 8 This utility model Figure 7 A magnified view of a portion of the image.

[0030] In the diagram: 1-Coating machine frame, 2-Coating evaporation source, 3-Coating chamber;

[0031] 11-Equipment base cabinet, 12-Upper functional cabinet, 13-Warning light, 14-Side auxiliary cabinet, 15-Drive motor mounting bracket;

[0032] 21-Mounting plate, 22-Fixing bolt, 23-Mounting base, 24-Heating jacket, 25-Glass tube, 26-Coated material hopper, 27-Sealing sleeve, 28-Connecting pipe, 29-Sublimation heater;

[0033] 31-Coating main cavity; 32-Coating cover; 33-Steam distribution plate; 34-Light guide plate workpiece holder; 35-Rotating seat; 36-Drive shaft; 37-Drive motor; 38-Vacuum suction head; 39-Connecting pipe; 310-Vacuum pump. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Please see Figure 1-8 In this embodiment of the present invention, a coating structure for processing the surface of a light guide plate includes a coating machine frame 1. A coating evaporation source 2 and a coating chamber 3 are respectively installed on the upper end of the coating machine frame 1, and the coating evaporation source 2 is installed on the inner side of the upper end of the coating machine frame 1; the left side of the coating evaporation source 2 is connected to the coating chamber 3.

[0036] The coating chamber 3 includes a coating main cavity 31, the upper end of which is connected to the coating cover 32. A rotating shaft and two latches are respectively connected between the outer side of the upper end of the coating main cavity 31 and the outer side of the coating cover 32. An observation window is provided on the front side of the coating main cavity 31, and an observation window is also installed on the upper surface of the coating cover 32.

[0037] The lower end of the coating main cavity 31 is rotatably connected to a rotating seat 35. The upper end of the rotating seat 35 is rotatably connected to the light guide plate workpiece holder 34 in a slotted manner. The light guide plate workpiece holder 34 is located inside the coating main cavity 31. The lower end of the rotating seat 35 is connected to a drive shaft 36, and the lower end of the drive shaft 36 is connected to a drive motor 37.

[0038] By adopting the above technical solution, the rotating seat 35 drives the light guide plate workpiece holder 34 to rotate, allowing the surface of the light guide plate to come into full contact with the coating vapor, further enhancing the uniformity of the film layer; the light guide plate workpiece holder 34 is connected to the upper end of the rotating seat 35 by a slot, which facilitates the assembly and disassembly of the rotating seat 35 and the light guide plate workpiece holder 34, and improves production efficiency in conjunction with the continuous vacuum coating process.

[0039] In this embodiment, a steam diversion plate 33 is installed on the right side of the inner cavity of the coating main cavity 31, and a vacuum suction head 38 is provided on the lower left side of the inner cavity of the coating main cavity 31, and the lower end of the vacuum suction head 38 is connected to the connecting pipe 39.

[0040] The lower end of the connecting pipe 39 is connected to the vacuum pump 310; the lower end of the coating main cavity 31 is fixedly installed on the upper surface of the side auxiliary cabinet 14, and a drive motor mounting seat 15 is installed on the inner side of the upper end of the side auxiliary cabinet 14, and a drive motor 37 is installed on the drive motor mounting seat 15; the vacuum pump 310 is fixedly connected to the inner side of the lower end of the side auxiliary cabinet 14.

[0041] By adopting the above technical solution, the vacuum pump 310 and vacuum suction head 38 work together with the coating main cavity 31 and coating cover 32 to efficiently build a stable vacuum environment, reduce the interference of air on the quality of the film layer, and improve the purity and uniformity of the coating. The vapor distribution plate 33 evenly disperses the gaseous material, avoids local excessive thickness or thinness, ensures the uniformity of the light guide plate film layer, and ensures the consistency of light transmission.

[0042] In this embodiment, the right side of the side auxiliary cabinet 14 is connected to the equipment base cabinet 11, the upper end of the equipment base cabinet 11 is connected to the upper functional cabinet 12, and a warning light 13 is installed on the upper surface of the upper functional cabinet 12.

[0043] By adopting the above technical solutions, the warning light 13 and the observation window provide real-time feedback on the equipment status and timely warning of faults; the cabinet structure isolates the power area from the work area, reducing operational risks and avoiding direct contact between personnel and high-temperature and high-pressure components.

[0044] In this embodiment, the right side of the steam diversion plate 33 is connected to the connecting pipe 28, the outside of the connecting pipe 28 is wrapped with a sublimation heater 29, and the other end of the connecting pipe 28 is connected to the glass tube 25.

[0045] The sublimation heater 29 is connected to four corners of its lower end with fixing bolts 22, and the lower ends of the multiple fixing bolts 22 are fixedly connected to the inner side of the lower end of the upper functional cabinet 12; the other end of the glass tube 25 is rotatably connected to the sealing sleeve 27, and the inner side of the glass tube 25 is provided with a coating material hopper 26.

[0046] The glass tube 25 and the sealing sleeve 27 are wrapped with a heating sleeve 24. The lower end of the heating sleeve 24 is placed on the mounting base 23. The mounting base 23 is fixedly installed on the mounting plate 21, and the four corners of the mounting plate 21 are all connected with fixing bolts 22. The lower ends of the multiple fixing bolts 22 are fixedly connected to the inner side of the lower end of the upper functional cabinet 12. The heating sleeve 24 is located on the right side of the sublimation heater 29.

[0047] By adopting the above technical solution, the sublimation heater 29 and heating jacket 24 are heated in segments to precisely control the sublimation rate of the material; by changing the material in the coating material hopper 26 and adjusting the heating parameters and rotation speed, it can be adapted to the processing of light guide plates for different film layers, such as anti-reflection film and anti-scratch film, thereby enhancing the versatility of the equipment.

[0048] The working principle of this utility model is as follows: when the vacuum pump 310 is started, the air inside the coating main cavity 31 is extracted through the connecting pipe 39 and the vacuum suction head 38. With the sealing connection between the coating cover 32 and the coating main cavity 31, a stable low-pressure vacuum environment is constructed to provide the basic conditions for coating.

[0049] The coating material in the coating material hopper 26 is heated by the heating jacket 24 to heat the glass tube 25 and the sublimation heater 29 to heat the connecting pipe 28, and gradually sublimates into a gaseous state; the steam is evenly dispersed into the coating main cavity 31 through the steam distribution plate 33 to ensure the uniform distribution of the material.

[0050] The drive motor 37 drives the rotating seat 35 to rotate through the transmission shaft 36, causing the light guide plate workpiece holder 34, which is clamped on the rotating seat 35, to rotate synchronously, so that the surface of the light guide plate can uniformly receive the gaseous coating material and achieve film deposition.

[0051] The rotating seat 35 drives the light guide plate workpiece holder 34 to rotate, allowing the surface of the light guide plate to come into full contact with the coating vapor, further enhancing the uniformity of the film layer; the light guide plate workpiece holder 34 is connected to the upper end of the rotating seat 35 by a slot, which facilitates the assembly and disassembly of the rotating seat 35 and the light guide plate workpiece holder 34, and improves production efficiency in conjunction with the continuous vacuum coating process.

[0052] The vacuum pump 310 and vacuum suction head 38 work in conjunction with the coating main cavity 31 and coating cover 32 to efficiently construct a stable vacuum environment, reduce the interference of air on the quality of the coating layer, and improve the purity and uniformity of the coating. The vapor distribution plate 33 evenly disperses the gaseous material, avoids local excessive thickness or thinness, ensures the uniformity of the light guide plate film layer, and ensures consistent light transmission.

[0053] Warning lights 13 and observation windows provide real-time feedback on equipment status and timely warnings of malfunctions; the cabinet structure isolates the power area from the work area, reducing operational risks and preventing personnel from directly contacting high-temperature and high-pressure components;

[0054] The sublimation heater 29 and heating jacket 24 provide segmented heating to precisely control the material sublimation rate. By changing the material in the coating material hopper 26 and adjusting the heating parameters and rotation speed, it can be adapted to the processing of light guide plates for different film layers, such as anti-reflective films and anti-scratch films, thus enhancing the equipment's versatility.

[0055] 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.

[0056] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A coating structure for processing the surface of a light guide plate, characterized in that: include A coating machine frame (1) is provided, with a coating evaporation source (2) and a coating chamber (3) installed on the upper end of the coating machine frame (1), and the coating evaporation source (2) is installed on the inner side of the upper end of the coating machine frame (1); the left side of the coating evaporation source (2) is connected to the coating chamber (3); The coating chamber (3) includes a coating main cavity (31), the upper end of which is connected to the coating cover (32). A rotating shaft and two latches are connected between the outer side of the upper end of the coating main cavity (31) and the outer side of the coating cover (32). An observation window is provided on the front side of the coating main cavity (31), and an observation window is also installed on the upper surface of the coating cover (32). The lower end of the coating main cavity (31) is rotatably connected to a rotating seat (35), and the upper end of the rotating seat (35) is rotatably connected to the light guide plate workpiece holder (34) in a slotted manner. The light guide plate workpiece holder (34) is located inside the coating main cavity (31). The lower end of the rotating seat (35) is connected to the transmission shaft (36), and the lower end of the transmission shaft (36) is connected to the drive motor (37).

2. The coating structure for processing the surface of the light guide plate according to claim 1, characterized in that: A steam diversion plate (33) is installed on the right side of the inner cavity of the coating main cavity (31). A vacuum suction head (38) is provided on the lower left side of the inner cavity of the coating main cavity (31). The lower end of the vacuum suction head (38) is connected to the connecting pipe (39).

3. The coating structure for processing the surface of the light guide plate according to claim 2, characterized in that: The lower end of the connecting pipe (39) is connected to the vacuum pump (310); the lower end of the coating main cavity (31) is fixedly installed on the upper surface of the side auxiliary cabinet (14), and a drive motor mounting seat (15) is installed on the inner side of the upper end of the side auxiliary cabinet (14), and a drive motor (37) is installed on the drive motor mounting seat (15); the vacuum pump (310) is fixedly connected to the inner side of the lower end of the side auxiliary cabinet (14).

4. The coating structure for processing the surface of the light guide plate according to claim 3, characterized in that: The right side of the auxiliary cabinet (14) is connected to the equipment base cabinet (11), the upper end of the equipment base cabinet (11) is connected to the upper functional cabinet (12), and a warning light (13) is installed on the upper surface of the upper functional cabinet (12).

5. The coating structure for processing the surface of a light guide plate according to claim 4, characterized in that: The right side of the steam diversion plate (33) is connected to the connecting pipe (28), the outside of the connecting pipe (28) is wrapped with a sublimation heater (29), and the other end of the connecting pipe (28) is connected to the glass tube (25).

6. The coating structure for processing the surface of a light guide plate according to claim 5, characterized in that: The sublimation heater (29) is connected to four corners of the lower end with fixing bolts (22), and the lower ends of the multiple fixing bolts (22) are fixedly connected to the inner side of the lower end of the upper functional cabinet (12); the other end of the glass tube (25) is rotatably connected to the sealing sleeve (27), and the inner side of the glass tube (25) is provided with a coating material hopper (26).

7. The coating structure for processing the surface of a light guide plate according to claim 6, characterized in that: The glass tube (25) and sealing sleeve (27) are wrapped with a heating sleeve (24). The lower end of the heating sleeve (24) is placed on the mounting base (23). The mounting base (23) is fixedly installed on the mounting plate (21). The mounting plate (21) is connected to four corners with fixing bolts (22). The lower ends of the multiple fixing bolts (22) are fixedly connected to the inner side of the lower end of the upper functional cabinet (12). The heating sleeve (24) is located on the right side of the sublimation heater (29).

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