A lamp mounting structure adapted to photo-alignment and UV curing processes

Abstract

The utility model relates to optical film manufacturing field discloses a lamp mounting structure suitable for light orientation and UV solidification procedure, including box, the projection opening and the air outlet opening of opening in the upper surface of box, lamp stand, exhaust hood, the bottom of box is provided with the light transmission glass, the lamp stand supports the lamp, makes the lamp towards the light transmission glass, the lamp and lamp stand are detachably connected, the orientation component that can realize 0 the orientation component of 360 degree orientation function is optionally arranged in the lamp stand. Through the combination of a set of lamps and two lamp mounting structures, replace the special lamp configuration of traditional two sets of independent equipment and realize 0 through the component of orientation function, avoid the repeated purchase of high -value core components such as imported special light source, high -precision reflector, polaroid, filter and rotating platform, directly reduce equipment procurement cost, and only need to maintain a set of lamps and a set of polaroid and filter, reduce the replacement and overhaul cost of daily operation spare parts.

Description

Technical Field

[0001] This utility model relates to the field of optical film manufacturing, and in particular to a lamp mounting structure adapted to light alignment and UV curing processes. Background Technology

[0002] The manufacturing of existing phase retardation films typically includes core processes such as alignment layer preparation, liquid crystal layer coating and curing. Among these, alignment layer preparation (photoalignment process) and liquid crystal layer curing (UV curing process) are key steps that determine the optical performance of the phase retardation film, and both rely on specialized optical equipment.

[0003] The photoalignment process requires the use of photoalignment equipment to irradiate the alignment film coating on the substrate surface with polarized ultraviolet light of a specific wavelength (usually 200-400nm), causing the alignment film molecules to align in the direction of light illumination and form a uniform alignment structure, which provides guidance for the subsequent orderly alignment of liquid crystal molecules. The core functional components of this equipment are lamps, polarizing plates and filters for alignment, as well as a rotating stage and cooling water pan to achieve different alignment angles. It must meet requirements such as precise wavelength control, energy uniformity (error ≤5%), rotatable polarization direction, and stable optical axis.

[0004] After the liquid crystal material coating is completed, it needs to be irradiated with ultraviolet light (wavelength is usually 300-400nm) using a UV curing device. This causes the liquid crystal molecules to be fixed in their alignment under the guidance of the alignment layer, and the coating is cured through photopolymerization to form a stable liquid crystal functional layer. The core functional components of this device are UV curing lamps and water-cooled rollers, which need to meet requirements such as controllable light energy, energy uniformity, long-term continuous operation stability, and nitrogen protection.

[0005] In the two key processes mentioned above, both the photoalignment equipment and the UV curing equipment use lamps as core functional components. Because these lamps need to meet the requirements of optical performance (wavelength, intensity, uniformity) and industrial reliability (lifespan, stability), they usually use imported special light sources, high-precision reflectors and optical filters. Their cost accounts for 35%-50% of the total cost of a single unit. In addition, the alignment and rotation components that can be optically controlled and achieve alignment at different angles account for a large portion of the cost of the photoalignment equipment, and are the main cost items for equipment procurement and maintenance.

[0006] However, in the existing technology, photoorientation equipment and UV curing equipment are two independent systems that require dedicated lamps. Although the two types of lamps target different processes, their core technical principle is the generation of ultraviolet light. The only difference lies in parameters such as optical control and cooling methods. They have the technical basis for parameter adaptation and functional reuse. The two processes are usually arranged continuously in the production line, which requires a large space for the equipment. Furthermore, the lamps need to be maintained separately, which further increases the equipment operation and maintenance costs and the complexity of production line management.

[0007] Therefore, in order to reduce equipment procurement and maintenance costs, it is hoped that the photo-alignment process and the UV curing process can share the same set of lamps, and that a lamp installation and switching structure adapted to the two types of processes can be developed. Utility Model Content

[0008] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a lamp installation structure that is adapted to the light alignment and UV curing process.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: A lamp mounting structure adapted for light alignment and UV curing processes includes a housing, a projection port and an exhaust port on the upper surface of the housing, a lamp holder at the projection port, and an exhaust hood at the exhaust port. The bottom of the housing has a light-transmitting opening with a light-transmitting glass at the opening. The lamp holder can support and position a downward-facing lamp so that the lamp faces the light-transmitting glass. The lamp and the lamp holder are detachably connected. An alignment component can be optionally installed inside the lamp holder between the light-transmitting glass and the lamp.

[0010] As a further improvement to the above technical solution, under top-view projection, the lamp holder is square tube shaped and includes a front panel, a rear panel, a left side panel, a right side panel, and a bottom support ring edge, which is fixed to the bottom surface of the front panel, rear panel, left side panel, and right side panel.

[0011] As a further improvement to the above technical solution, the height of the front panel is lower than the height of the rear panel, and the left and right side panels are right-angled trapezoids when viewed from the left.

[0012] As a further improvement to the above technical solution, support arms are provided on the outer surfaces of both the left and right side panels and are fixed to the top of the box via the support arms.

[0013] As a further improvement to the above technical solution, heat dissipation and airflow guiding notches are provided on both horizontal sides of the bottom support ring.

[0014] As a further improvement to the above technical solution, the lamp holder is fitted with the projection port, and the bottom of the lamp holder extends into the housing.

[0015] As a further improvement to the above technical solution, the bottom of the exhaust hood forms a flat cover interface that connects with the exhaust port, and the top of the exhaust hood forms a flange interface that connects with the exhaust pipe.

[0016] As a further improvement to the above technical solution, the alignment component includes an inverted bracket, a polarizing module and a filtering module inserted into the bracket and placed in layers, wherein the filtering module is located above the polarizing module and is closer to the lamp than the polarizing module.

[0017] As a further improvement to the above technical solution, the filtering module includes a second plate and a filter, and the polarizing module includes a first plate and a polarizer.

[0018] As a further improvement to the above technical solution, mounting lugs are provided at the corners of the housing, and positioning holes are provided on the mounting lugs.

[0019] Beneficial effects: Compared with existing technologies, the lamp mounting structure provided by this utility model can simultaneously adapt to lamp installation in both light alignment and UV curing processes. By combining one lamp and two lamp mounting structures, it replaces the traditional configuration of two separate sets of dedicated lamps, avoiding the repeated purchase of expensive core components such as imported special light sources, high-precision reflectors, polarizers, and filters, directly reducing equipment procurement costs. Furthermore, only one set of lamps needs maintenance, reducing daily maintenance costs for spare parts replacement and repair. The lamp and lamp holder are detachably connected, and the two lamp mounting structures are close together, making it easy to move the lamp and select whether to install the alignment component during process switching. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a luminaire mounted on a luminaire mounting structure.

[0021] Figure 2 Schematic diagram of the lamp mounting structure provided by this utility model Figure 1 .

[0022] Figure 3 Schematic diagram of the lamp mounting structure provided by this utility model Figure 2 .

[0023] Figure 4 This is a structural diagram of the box.

[0024] Figure 5 Schematic diagram of the lamp holder structure Figure 1 .

[0025] Figure 6 Schematic diagram of the lamp holder structure Figure 2 .

[0026] Figure 7 This is a schematic diagram of the alignment component.

[0027] Figure 8 This is a schematic diagram of the structure of the first type of polarizing module.

[0028] Figure 9 This is a schematic diagram of the second type of polarization module.

[0029] Figure 10 This is a schematic diagram of the third type of polarization module.

[0030] Figure 11 This is a schematic diagram of the fourth type of polarization module.

[0031] Figure 12 This is a schematic diagram of the fifth type of polarization module.

[0032] Figure 13 This is a schematic diagram of the sixth type of polarization module.

[0033] Figure 14 This is a schematic diagram of the seventh type of polarization module.

[0034] Figure 15 This is a schematic diagram of the luminaire installed in the first luminaire mounting structure during the light alignment process.

[0035] Figure 16 This is a schematic diagram showing the installation of the lamps in the second lamp mounting structure during the UV curing process.

[0036] Key component symbols: 1-Box body, 11-Projection port, 12-Exhaust vent, 13-Mounting lug, 2-Lamp holder, 21-Front panel, 22-Rear panel, 23-Left side panel, 24-Right side panel, 25-Bottom support ring, 251-Heat dissipation and airflow guide notch, 26-Support arm, 3-Exhaust hood, 31-Flat cover interface, 32-Flange interface, 4-Transparent glass, 5-Orientation assembly, 51-Bracket, 52-Polarizing module, 521-First plate, 522-Polarizing film, 523-First loading window, 53-Filter module, 531-Second plate, 532-Filter film, 61-First lamp mounting structure, 62-Second lamp mounting structure, 63-Roller, 64-Cold water pan, 65-Lamp, 66-Membrane material. Detailed Implementation

[0037] This utility model provides a lamp mounting structure adapted to light alignment and UV curing processes. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0038] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0039] Please see Figures 1 to 14 As shown, this utility model provides a lamp installation structure adapted to light alignment and UV curing processes, including a housing 1, a projection port 11 and an exhaust port 12 on the upper surface of the housing 1, a lamp holder 2 set at the projection port 11, and an exhaust hood 3 set at the exhaust port 12. The bottom of the housing 1 has a light-transmitting opening and a light-transmitting glass 4 is set at the light-transmitting opening. The lamp holder 2 can support and position a downward-facing lamp 65, so that the lamp 65 faces the light-transmitting glass 4. The lamp 65 is detachably connected to the lamp holder 2. An alignment component 5 can be selectively set inside the lamp holder 2 between the light-transmitting glass 4 and the lamp 65. The alignment component 5 includes a bracket 51, a polarizing module 52 and a filtering module 53 layered on the bracket. The filtering module 53 is located above the polarizing module 52 and is closer to the lamp 65 than the polarizing module 52.

[0040] In fact, the winding rack 63 is equipped with a cold water pan 64 and a cold water roller. Correspondingly, two lamp mounting structures are configured: the first lamp mounting structure 61 is positioned above the cold water pan 64 on the winding rack 63, and the second lamp mounting structure 62 is positioned above the cold water roller on the winding rack 63. The housing 1 of the lamp mounting structure provides the mounting carrier, the projection port 11 is for inserting the lamp 65, the light-transmitting port and the light-transmitting glass 4 allow for the directional projection of ultraviolet light onto the membrane material 66, and the exhaust port 12 and the exhaust hood 3 can promptly discharge heat or volatile gases generated during the process, ensuring stable equipment operation.

[0041] See Figure 15As shown, in the photoalignment process, the lamp 65 is installed on the first lamp mounting structure 61 above the cooling water pan 64 of the rack: the alignment component 5 (used to achieve polarized ultraviolet light control) is installed in the lamp holder 2, and the lamp 65 is fixed downwards on the lamp holder 2 and aligned with the light-transmitting glass 4; the film material 66, after being coated with the alignment layer and baked, passes between the cooling water pan 64 and the first lamp mounting structure 61. The ultraviolet light of a specific wavelength emitted by the lamp 65 passes through the filter module, the polarization module (forming polarized light), and the light-transmitting glass in sequence, and accurately irradiates the alignment layer on the surface of the film material, so that the alignment film molecules are oriented and aligned. The film material 66 that has completed photoalignment is wound up as a semi-finished photoalignment film.

[0042] See Figure 16 As shown, in the UV curing process, the same lamp 65 is unloaded from the first lamp mounting structure 61 and transported to the second lamp mounting structure 62 above the cold water roller on the winding rack 63 (the two lamp mounting structures are set up adjacently for easy quick transfer). However, the lamp holder 2 of the second lamp mounting structure 62 is not assembled with the aligning component 5, and the lamp 65 is still fixed downwards and aligned with the light-transmitting glass 4. The semi-finished film material 66, after being coated with liquid crystal and baked, is wound around the cold water roller and passes between the cold water roller and the second lamp mounting structure 62. The high-intensity ultraviolet light emitted by the lamp 65 directly passes through the light-transmitting glass 4 and irradiates the liquid crystal coating, causing the liquid crystal molecules to be fixedly arranged and complete photopolymerization and curing. Finally, it is wound up into a finished compensation film.

[0043] Compared with existing technologies, this method replaces the traditional configuration of two separate sets of dedicated lamps 65 by combining one set of lamps 65 and two lamp mounting structures. This avoids the repeated purchase of expensive core components such as imported special light sources and high-precision reflectors, directly reducing equipment procurement costs. Furthermore, only one set of lamps 65 needs to be maintained, reducing the cost of daily maintenance, spare parts replacement, and repair. The lamps 65 and lamp holders 2 are detachably connected, and the two lamp mounting structures are located close to each other. During process changes, the lamps 65 can be moved and the alignment assembly 5 can be selected for installation, simplifying the operation.

[0044] Furthermore, existing technologies rely on rotary tables to achieve different alignment angles. Rotary tables, as high-precision moving parts, are not only costly to manufacture but also require supporting drive, control, and positioning systems, increasing the overall complexity of the equipment. This solution eliminates the need for a rotary table; the alignment component 5 uses a static, layered support structure to configure suitable filter and polarizing modules, directly saving the cost of a rotary table and related supporting systems. Simultaneously, it simplifies the structure of the alignment component, reduces the number of core components, and further lowers the equipment procurement threshold and maintenance costs for the optical alignment process.

[0045] For details, see Figure 5As shown, the lamp 65 has a regular rectangular structure. Correspondingly, in a top-view projection, the lamp holder 2 is square-shaped, including a front panel 21, a rear panel 22, a left side panel 23, a right side panel 24, and a bottom support ring 25. The bottom support ring 25 is fixed to the bottom surfaces of the front panel 21, rear panel 22, left side panel 23, and right side panel 24 to form a surrounding support surface. When the rectangular lamp 65 is placed downwards, the bottom surface of the lamp 65 is in full contact with the bottom support ring 25. Through the uniform force distribution of the bottom support ring 25, the lamp 65 is prevented from tilting due to single-point support, ensuring that the lamp 65 maintains a stable posture during long-term operation (such as continuous operation for long periods of UV curing).

[0046] The front panel 21, rear panel 22, left side panel 23, and right side panel 24 form a square tube-shaped four-sided enclosure structure. After the cuboid lamp 65 is installed into the lamp holder 2, its four sides are respectively attached to the four side panels of the lamp holder 2. This design restricts the displacement of the lamp 65 in the horizontal direction, ensuring that the light-emitting center of the lamp 65 can be accurately aligned with the light-transmitting glass 4 below each time it is installed, avoiding the deviation of the ultraviolet light projection position due to the offset of the lamp 65 (such as the polarized light not being able to uniformly cover the film 66 in the photo-alignment process, or the uneven energy distribution in the UV curing process).

[0047] The hollow, square-shaped structure provides ample internal space, allowing for the selective installation of alignment components 5 (such as polarizers, optical filters, etc.) between the luminaire 65 and the translucent glass 4. During the light alignment process, the top of the alignment component 5 can fit against the bottom of the luminaire 65, while the bottom is supported by the bottom support ring 25. Furthermore, the sides of the alignment component 5 are positioned by the front panel 21, rear panel 22, left side panel 23, and right side panel 24. Understandably, the lamp holder 2 has no complex locking mechanism and is positioned solely by the enclosure and the weight of the luminaire 65 itself. Combined with the detachable connection between the luminaire 65 and the lamp holder 2, the luminaire 65 can be quickly assembled and disassembled, facilitating transfer between two adjacent installation structures.

[0048] The height of the front panel 21 is lower than the height of the rear panel 22. In the left view projection, the left side panel 23 and the right side panel 24 are right trapezoids. The short base of the right trapezoid is connected to the bottom of the front panel 21, and the long base is connected to the bottom of the rear panel 22, so that the square tube-shaped internal space enclosed by the four panels forms a fixed tilt angle (non-horizontal). The shape of this space is perfectly matched with the shape of the cuboid lamp 65, ensuring that the lamp 65 can naturally fit against the inner wall of the lamp holder 2 after being installed, forming a tilted placement posture.

[0049] The cuboid lamp 65 has a fixed center of gravity. When placed at an angle, its center of gravity will naturally shift towards the lower front panel 21. The tilted structure of the lamp holder 2 makes the bottom support ring 25 form a tilted support surface that is lower in the front and higher in the back, so that the center of gravity of the lamp 65 is completely within the support range of the bottom support ring 25, avoiding the tendency of the lamp 65 to tilt forward or backward due to the shift of the center of gravity, and eliminating the risk of detaching from the lamp holder 2 from the root.

[0050] See Figure 2 and Figure 3 As shown, both the left side plate 23 and the right side plate 24 are provided with support arms 26 on their outer surfaces and are fixed to the top of the housing 1 by the support arms 26 and screws. The support arms 26 extend from the outer side of the side plate and can distribute the weight of the lamp holder 2 and the lamp 65 to the top of the housing 1 (instead of concentrating it at the local contact point between the lamp holder 2 and the housing 1), thus preventing the lamp holder 2 from deforming due to long-term stress; the rigid locking of the screws further prevents the tilted lamp holder 2 from loosening and shifting, and completely eliminates the hidden danger of the lamp 65 detaching from the lamp holder 2 or the lamp holder 2 detaching from the housing 1.

[0051] Compared to non-removable connections such as welding, the combination of screws and support arm 26 allows the lamp holder 2 to be disassembled independently. When it is necessary to inspect the inside of the lamp holder 2 or maintain the top structure of the housing 1, the lamp holder 2 can be removed simply by unscrewing the screws, without damaging the lamp holder 2 or the housing 1, thus reducing maintenance difficulty and time costs.

[0052] Preferred, see Figure 5 As shown, heat dissipation and airflow guiding notches 251 are provided on both horizontal sides of the bottom support ring 25. When the lamp 65 is working, it continuously generates a large amount of heat. A complete bottom support ring 25 easily forms a closed hot zone at the bottom of the lamp 65, leading to heat accumulation. The heat dissipation and airflow guiding notches 251 on the horizontal sides can break the seal, allowing cool air to enter the bottom of the lamp 65 from the side of the light-transmitting glass 4 or the outside of the lamp holder 2. Hot air flows rapidly downwards through the heat dissipation and airflow guiding notches 251 and is then drawn away by the negative pressure of the exhaust vent 12 and the exhaust cover 3 of the housing 1, forming a directional convection heat dissipation channel. This effectively prevents the bottom temperature of the lamp 65 from becoming too high, which could cause attenuation of the imported special light source, deformation of the high-precision reflector, or drift in optical parameters.

[0053] Furthermore, the lamp holder 2 is fitted into the projection port 11, and the bottom of the lamp holder 2 extends into the housing 1. On the one hand, the bottom of the lamp holder 2 extending into the housing 1 causes the position of the lamp 65 fixed in the lamp holder 2 to move downwards synchronously, closer to the light-transmitting glass 4 at the bottom of the housing 1, directly shortening the propagation distance of ultraviolet light from the lamp 65 to the light-transmitting glass 4. This can effectively reduce the scattering and energy attenuation of light in the air, and at the same time, it can also reduce the risk of polarization direction shift of polarized light in the photo-alignment process, and improve the uniformity of the alignment film molecular arrangement. On the other hand, after the bottom of the lamp holder 2 extends into the housing 1, the main body of the lamp 65 is closer to the exhaust area inside the housing 1. The heat generated by the lamp 65 when it is working can directly form a close-range airflow circulation of heat dissipation of the lamp 65 and exhaust of the housing 1 inside the housing 1, without having to diffuse to the outside first and then be drawn away. Combined with the heat dissipation guide notch 251 of the bottom support ring edge 25, hot air can quickly enter the interior of the housing 1 through the heat dissipation guide notch 251 and then be efficiently extracted by the exhaust system, which greatly improves the heat dissipation efficiency and avoids the performance degradation or shortened life of the lamp 65 due to high temperature.

[0054] The fitting structure between the lamp holder 2 and the projection port 11 creates a certain sealing effect, preventing dust and impurities from the production line environment from entering the housing 1 through the gap between the projection port 11 and the lamp holder 2. This protects the light-transmitting glass 4 and the alignment assembly 5 inside the housing 1, reduces optical performance problems caused by external contaminants, and also reduces the frequency of cleaning and maintenance of the internal components of the housing 1, indirectly saving on operation and maintenance costs.

[0055] Specifically, the bottom of the exhaust hood 3 forms a flat cover interface 31 that connects with the exhaust port 12. The flat cover structure maximizes the contact area at the interface and reduces the gap between the two. The top of the exhaust hood 3 forms a flange interface 32 that connects with the exhaust pipe. The flange interface 32 on the top of the exhaust hood 3 is a standardized structure for industrial pipe connections, which has evenly distributed bolt holes and can be tightly locked with the exhaust pipe by bolts.

[0056] For details, see Figure 7 As shown, the bracket 51 has an inverted U-shape structure, and the polarizing module 52 and the filtering module 53 are inserted into the bracket 51. The polarizing module 52 includes a first plate 521 with at least one first loading window 523 and a polarizing sheet 522 adapted to the first loading window 523. The open insertion structure of the inverted bracket 51 can form a dual positioning of left and right limit and upper and lower support for the polarizing module 52 and the filtering module 53, ensuring that the two mirrors always remain parallel and the spacing is fixed, avoiding optical path disorder caused by mirror tilting or offset. At the same time, the layered placement strictly matches the light propagation path (the light goes from the lamp 65 to the filtering module 53 and then to the polarizing module 52, and finally is projected onto the film material 66), so that the light passes through wavelength screening and polarization treatment in sequence, ensuring that the ultraviolet light with precise wavelength and stable polarization direction that finally illuminates the alignment film directly meets the requirements of the photoalignment process and improves the uniformity of molecular arrangement of the alignment film.

[0057] Specifically, the filtering module 53 includes a second plate 531 with a second loading window and a filter 532, and the polarizing module 52 includes a first plate 521 with at least one first loading window 523 and a polarizing film 522 adapted to the first loading window 523. The second plate 531 of the filtering module 53 and the first plate 521 of the polarizing module 52 can completely wrap or fix the filter 532 and the polarizing film 522, preventing the lens from directly contacting the I-shaped bracket 51 and the lamp holder 2, reducing scratch damage during handling or installation. At the same time, the external dimensions of the metal plate can be precisely matched with the internal space of the I-shaped bracket 51 of the alignment assembly 5. During installation, the metal plate can quickly align with the limiting structure of the bracket 51, ensuring that the center of the lens is completely coaxial with the light-emitting center of the lamp 65 and the center of the light-transmitting glass 4, avoiding optical path deviation caused by lens misalignment.

[0058] See Figures 8 to 14As shown in the figure, the length extension direction of the first plate 521 is the same as the width direction of the membrane material, and the width extension direction of the first plate 521 is the same as the conveying direction of the membrane material. In fact, the setting angle range of the first loading window 523 is 0°~360°. By opening the first loading window 523 at different angles (such as 0°, 15°, 45°, 75°) to fix the polarizer 522, different alignment requirements can be achieved directly by replacing the polarizer module 52 with different angle frames. There is no need to customize polarizers 522 with multiple angles, nor is it necessary to adjust the installation posture of the lamp holder 2 or the lamp 65. See Figures 8 to 11 As shown, when the width of a single polarizer 522 cannot cover the wide film material 66 of the production line, multiple polarizers 522 can be spliced ​​together in the width direction to achieve polarized light coverage across the entire width range of the film material 66.

[0059] This design significantly improves the versatility of the alignment component 5, avoids the cost of re-customizing lenses due to changes in product specifications, and shortens the adjustment time when switching products.

[0060] It should be noted that the seam between the two first loading windows 523 is very small and opaque, and the seam is covered by opaque metal or other materials.

[0061] See Figure 10 As shown, the long side of the polarizer is 0° (if 0° is defined as the absorption axis of the polarizer, then 90° is the transmission direction of light, that is, the long side is defined as 90° as the transmission direction). The short sides of the polarizer are spliced ​​along the width direction, then the width direction (TD) is the absorption axis direction, and the optical axis of the compensation film in the film direction (MD) is generally 0°; along the film direction, clockwise rotation is +, such as rotating the polarization light absorption axis clockwise by 45°, which is +45", and rotating it counterclockwise by 45°, which is -45°.

[0062] Of course, the bracket 51, the second plate 531 and the first plate 521 of the alignment assembly 5 are also provided with heat dissipation guide notches 251 corresponding to the heat dissipation guide notches 251 of the bottom support ring edge 25.

[0063] Further details can be found here. Figure 4As shown, mounting lugs 13 are provided at the corners of the housing 1, and positioning holes are provided on the mounting lugs 13. The mounting lugs 13 are located at the corners of the housing 1, and their positions correspond precisely to the preset mounting positions of the winding frame 63. The positioning holes can be rigidly fixed to the frame by bolts, pins and other connecting parts, which can directly limit the displacement and angular deviation of the housing 1 in the horizontal and vertical directions. This ensures that the two lamp mounting structures (located above the cold water pan 64 and the cold water roller, respectively) can be accurately fixed in the preset positions, avoiding the light emission centers of the lamp holder 2 and the lamp 65 from deviating from the transmission path of the film material 66 due to the offset of the housing 1. This ensures the uniform coverage of polarized light on the film material 66 in the photo-alignment process and the precise energy projection requirements of the UV curing process, and prevents problems such as uneven alignment and incomplete curing caused by the positional deviation of the housing 1.

[0064] In this embodiment, the lamp 65 is an electrodeless mercury lamp or a standard mercury lamp with electrodes, and the lamp holder 2 is an aluminum lamp holder 2, which has good heat dissipation performance.

[0065] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims of this utility model.

Claims

1. A lamp mounting structure adapted for light alignment and UV curing processes, characterized in that, The device includes a housing, a projection port and an exhaust port on the upper surface of the housing, a lamp holder at the projection port, and an exhaust hood at the exhaust port. The bottom of the housing has a light-transmitting opening with a light-transmitting glass at the opening. The lamp holder supports and positions a downward-facing lamp so that the lamp faces the light-transmitting glass. The lamp is detachably connected to the lamp holder. The lamp holder can optionally house an alignment component located between the light-transmitting glass and the lamp. The alignment component includes a bracket, a polarizing module and a filtering module mounted in layers on the bracket, with the filtering module located above the polarizing module and closer to the lamp than the polarizing module.

2. The lamp mounting structure for adapting to light alignment and UV curing processes according to claim 1, characterized in that, In a top-down projection, the lamp holder is square-shaped and includes a front panel, a rear panel, a left side panel, a right side panel, and a bottom support ring, which is fixed to the bottom surface of the front panel, rear panel, left side panel, and right side panel.

3. The lamp mounting structure for adapting to light alignment and UV curing processes according to claim 2, characterized in that, The height of the front panel is lower than the height of the rear panel, and the left and right side panels are right-angled trapezoids when viewed from the left.

4. The lamp mounting structure for adapting to light alignment and UV curing processes according to claim 2, characterized in that, Both the left and right side panels are equipped with support arms on their outer surfaces and are fixed to the top of the box via these support arms.

5. The lamp mounting structure for adapting to light alignment and UV curing processes according to claim 2, characterized in that, The bottom support ring has heat dissipation and airflow guiding notches on both horizontal sides.

6. The lamp mounting structure for adapting to light alignment and UV curing processes according to any one of claims 1-5, characterized in that, The lamp holder fits into the projection port, and the bottom of the lamp holder extends into the housing.

7. The lamp mounting structure for adapting to light alignment and UV curing processes according to claim 1, characterized in that, The bottom of the exhaust hood forms a flat cover interface that connects with the exhaust port, and the top of the exhaust hood forms a flange interface that connects with the exhaust pipe.

8. The lamp mounting structure for adapting to light alignment and UV curing processes according to claim 1, characterized in that, The bracket has an i-shaped structure, and the polarizing module and the filtering module are inserted into the bracket. The polarizing module includes a first plate with at least one first loading window and a polarizer adapted to the first loading window. The setting angle range of the first loading window is 0° to 360°.

9. The lamp mounting structure for adapting to light alignment and UV curing processes according to claim 8, characterized in that, The filtering module includes a second plate with a second loading window and a filter that is adapted to the second loading window.

10. The lamp mounting structure for adapting to light alignment and UV curing processes according to claim 1, characterized in that, The box body is provided with mounting lugs at the corners, and the mounting lugs are provided with positioning holes.

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