High-performance modular pattern light guide plate, processing technology thereof, optical system and lamp

Abstract

The application discloses a high-performance modular pattern light guide plate and a processing technology, an optical system and a lamp thereof. A side surface of the light guide plate in the thickness direction is provided with a set of surface light emitting optical textures through at least one times of compression molding. The set of surface light emitting optical textures is composed of a plurality of micro-nano optical structures. The other side surface of the light guide plate in the thickness direction has a plurality of light emitting sub-regions corresponding to the set of surface light emitting optical textures respectively. The optical system adopts a mini LED lamp group arranged along the light guide plate light inlet part for side light. The processing of the light guide plate includes compression mold electroforming, substrate injection molding, surface activation, compression adhesive coating, vacuum compression, ultraviolet curing, demolding and heat treatment. The light guide plate can consider static transparent effect, uniform surface light emitting effect and curved surface installation capacity, has excellent versatility, can realize modular design, shortens the development cycle, and the lamp has high brightness and good surface light emitting uniformity, and can be used as various types of lamps.

Description

Technical Field

[0001] This invention relates to the field of lighting equipment technology, specifically to a high-performance modular patterned light guide plate and its processing technology, optical system, and luminaire. Background Technology

[0002] Traditional vehicle surface light source modules typically use thick-walled light guides as the main light guide, with the LED light source positioned on one outer edge of the thick-walled light guide. The surface or interior of the thick-walled light guide has light-guiding structures such as light guide teeth. Light enters from the light-inlet edge of the light guide, propagates within the light guide, and is reflected and refracted by the various light-guiding structures before exiting from the light-emitting surface, thus achieving a surface light emission effect. However, this existing technical solution has many limitations in practical applications and development, making it difficult to meet the ever-increasing market demands.

[0003] Firstly, in terms of design and development, the luminescent patterns of existing thick-walled light guides rely on optical teeth, typically in the millimeter range. This structure makes modular design difficult; even minor adjustments to the details of the luminescent pattern often require redesigning and remolding the entire light guide plate. This not only leads to lengthy development cycles but also significantly increases development costs and reduces the flexibility of product iteration. Furthermore, traditional light guides are usually manufactured in a single injection molding process. For different types of lamps, precision injection molds need to be re-processed, resulting in long mold manufacturing cycles, high development costs, and inconvenient pattern iteration.

[0004] Secondly, in terms of structure and form, due to limitations in structural design and manufacturing processes, existing thick-walled light guides typically have significant thickness and weight. This directly results in a large lamp body volume, hindering the lightweight and thinner design of the entire vehicle lighting system. Especially in the currently popular through-type taillights or headlight designs with continuous curved surfaces, thick-walled light guides are not easily bent and are difficult to adapt to curved surfaces with small radii and irregular installation spaces, greatly limiting the designer's creative expression.

[0005] Secondly, regarding optical performance, light experiences continuous propagation loss as it travels from the light-inlet end of a light guide towards areas farther from the light source. Using a light guide structure with uniform density can easily lead to uneven brightness, with areas closer to the light source exhibiting higher brightness and areas farther away exhibiting lower brightness. This is particularly problematic for light guides with curved sections, where the propagation path and total internal reflection conditions change, easily causing localized bright spots at corners and severely affecting the consistency and uniformity of light emission.

[0006] Finally, regarding the aesthetics, to improve light output brightness, existing surface light source optical systems typically require a reflective film to be attached to the back of the light guide. This design results in the optical system appearing opaque or pure black when not illuminated, lacking a sense of transparency. As consumers increasingly demand a premium look for their vehicles, this "dead black" visual effect is no longer sufficient to meet expectations for a refined and transparent aesthetic even when the headlights are off.

[0007] Solving these problems is now a top priority. Summary of the Invention

[0008] To address the technical problems of existing surface-emitting light guides being thick and heavy, difficult to shape into curved surfaces, having poor lighting effects and static visual effects, and being unable to achieve modular design, this invention provides a high-performance modular patterned light guide plate, its processing technology, optical system, and lighting fixture.

[0009] The technical solution is as follows:

[0010] The first aspect of this application relates to a high-performance modular patterned light guide plate, comprising a light guide plate body, wherein the light guide plate body is a thin plate structure capable of bending and deformation, and one side surface of the light guide plate body in the thickness direction is formed by at least one imprinting of at least two sets of semi-transparent or fully transparent surface-emitting optical textures, wherein the set of surface-emitting optical textures is composed of multiple micro-nano optical structures, and the other side surface of the light guide plate body in the thickness direction has photon-emitting regions corresponding to each set of surface-emitting optical textures, wherein at least one light guide plate light-inlet section is provided on the circumferential outer edge of the light guide plate body, and after light enters the light guide plate body from each light guide plate light-inlet section, it is reflected and / or refracted by the micro-nano optical structures of each set of surface-emitting optical textures and emitted to the corresponding photon-emitting region.

[0011] By using the above high-performance modular patterned light guide plate, the following technical effects were achieved:

[0012] 1. Different facet luminescent optical texture sets can adopt different shapes, and by combining various facet luminescent optical texture sets, relatively complex combined patterns can be formed, and modular design of combined patterns can be realized. Only some patterns need to be adjusted according to requirements, without the need for complete redesign, which shortens the development cycle of lighting fixtures and reduces development costs. At the same time, by cooperating with light sources, relatively complex lighting effects such as zoned lighting, color-separated lighting effects, and dynamic flowing light effects can be achieved.

[0013] 2. The light guide plate body is a thin plate structure, with an overall thickness much smaller than that of traditional light guide plates, which allows the light guide plate body to be bent freely to a great extent, adapting to different application scenarios and having good versatility;

[0014] 3. Because the micro-nano optical structures formed on the surface of the light guide plate are at the micrometer or nanometer scale, they not only ensure the efficiency of light reflection and / or refraction to each photon-emitting region, but also significantly reduce light propagation loss. Even with the most conventional design of uniformly distributed micro-nano optical structures in a set of surface-emitting optical textures, there is almost no problem of higher brightness near the light source and lower brightness far from the light source in the corresponding photon-emitting regions. Furthermore, there are no obvious bright spots at the bends of the light guide plate, further improving the uniformity of light emission in each photon-emitting region. Therefore, high-performance modular patterned light guide plates can be easily designed with curved or irregular shapes. At the same time, the micrometer-scale micro-nano optical structures are visually semi-transparent, and the nanometer-scale micro-nano optical structures are visually completely transparent, greatly enhancing the transparency of the static appearance of the light guide plate and thus improving the premium feel of the lighting fixture.

[0015] 4. The light guide plate substrate formed by injection molding before embossing can be used interchangeably among multiple products with the same requirements for the shape and size of the light guide plate. Only different embossing molds need to be used according to different light emission patterns. Correspondingly, products with the same light emission pattern can use embossing molds with the same pattern. Only the corresponding light guide plate substrate needs to be injection molded according to different product sizes, thus realizing modular design. This helps to shorten the product development cycle and reduce mold iteration costs. At the same time, the embossing process has good stability and high product yield, which can significantly reduce the production cost after mass production.

[0016] In some embodiments, the light guide plate body includes a light guide plate substrate made of a transparent material. The light guide plate substrate is a thin sheet structure that can be bent and deformed. Each photon emission region is disposed on one side surface of the light guide plate substrate in the thickness direction. The other side surface of the light guide plate substrate in the thickness direction is formed with adhesive cured with a transparent material to form an adhesive cured layer block in a number not exceeding the number of photon emission regions.

[0017] When the number of adhesive curing layer blocks is 1, the projection of the adhesive curing layer block on the side surface of the light guide plate substrate where the photon emission area is set covers all the photon emission areas. The side surface of the adhesive curing layer block away from the light guide plate substrate is formed with the set of surface luminescent optical textures that correspond one-to-one with each photon emission area.

[0018] When the number of adhesive curing layer blocks is greater than 1 and less than the number of photon emitting regions, the projection of each adhesive curing layer block on the side surface of the light guide plate substrate where the photon emitting region is located covers at least one photon emitting region, and the side surface of each adhesive curing layer block away from the light guide plate substrate is formed with a plurality of surface-emitting optical texture sets that are respectively matched with the corresponding photon emitting region.

[0019] When the number of adhesive curing layer blocks is equal to the number of photon emitting regions, the projection of each adhesive curing layer block on the side surface of the light guide plate substrate where the photon emitting region is located covers a corresponding photon emitting region. Each adhesive curing layer block has a set of surface-emitting optical textures that match the corresponding photon emitting region formed on the side surface away from the light guide plate substrate.

[0020] With the above design, the light guide plate body is made on only one light guide plate substrate. The modular design is highly flexible and the overall structure is stable. It is not only not easy to crack, but also has better bending performance, which can achieve a minimum bending radius of 40mm. This allows the light guide plate to be adapted to the curved surface, corner surface or irregular continuous curved surface inside the lamp, and has good versatility.

[0021] In some embodiments, the surface of the light guide plate substrate away from the adhesive curing layer block is covered with an anti-light-spreading structure. The anti-light-spreading structure, made of opaque material, is integrally formed with the light guide plate substrate through a two-color injection molding process. The anti-light-spreading structure has pattern constraint holes that correspond one-to-one with each photon emission area.

[0022] By adopting the above design, a layer of anti-light-spreading structural component is formed on the surface of the light guide plate substrate using a two-color injection molding process, which effectively improves the structural strength of the light guide plate body. At the same time, the pattern constraint holes ensure that only the photon-emitting area is exposed on the outer surface of the light guide plate substrate. This not only allows for secondary definition of the lighting pattern of each photon-emitting area by the shape design of each pattern constraint hole, but also allows for different shapes of each pattern constraint hole, thereby enabling arbitrary splicing and combination of various patterns. Furthermore, the anti-light-spreading structural component can effectively solve the problem of stray light overflow between adjacent photon-emitting areas and in the light mixing area of ​​the light guide plate substrate.

[0023] In some embodiments, the light guide plate body includes an anti-light-spreading structural component and at least two light guide plate substrates disposed on one side of the thickness direction of the anti-light-spreading structural component. The anti-light-spreading structural component, made of opaque material, and each light guide plate substrate, made of transparent material, are integrally formed by a two-color injection molding process. Each light guide plate substrate has at least one photon-emitting region on the side near the anti-light-spreading structural component. The anti-light-spreading structural component has pattern constraint holes corresponding to each photon-emitting region. Each light guide plate substrate has at least one adhesive curing layer block on the side away from the anti-light-spreading structural component, which is cured with transparent adhesive. The projection of each adhesive curing layer block on the surface of the corresponding light guide plate substrate on the side where the photon-emitting region is disposed covers at least one photon-emitting region. The surface of each adhesive curing layer block on the side away from the corresponding light guide plate substrate is imprinted with a plurality of surface-emitting optical texture sets that match the corresponding photon-emitting region.

[0024] By adopting the above design, the anti-light-spreading structural component and multiple light guide plate substrates are integrally molded through a two-color injection molding process, which effectively improves the structural strength of the light guide plate body. At the same time, the number of light guide plate substrates can be flexibly set according to the needs of the process and application. Furthermore, the pattern constraint holes ensure that only the photon-emitting area is exposed on the outer surface of each light guide plate substrate. This not only allows for secondary definition of the lighting pattern of each photon-emitting area using the shape design of each pattern constraint hole, but also allows for different shapes of each pattern constraint hole, thereby enabling arbitrary splicing and combination of various patterns. In addition, the anti-light-spreading structural component can also effectively solve the problem of stray light overflow between adjacent photon-emitting areas and the mixed light areas of each light guide plate substrate.

[0025] In some embodiments, the light guide plate body is integrally formed by a light-blocking anti-light-spreading structural component made of opaque material and multiple light guide plate substrates made of transparent material through a two-color injection molding process. Adjacent light guide plate substrates are separated by anti-light-spreading partition ribs of the anti-light-spreading structural component. One side of each light guide plate substrate in the thickness direction is a photon-emitting region, and the other side of each light guide plate substrate in the thickness direction is formed by curing a transparent adhesive to form an adhesive curing layer block. The surface of each adhesive curing layer block away from the corresponding photon-emitting region is embossed with a set of surface-emitting optical textures that match the corresponding photon-emitting region.

[0026] Using the above design, the anti-light-crossing structural component and each light guide plate substrate are integrally molded using a two-color injection molding process. The anti-light-crossing partition ribs of the anti-light-crossing structural component separate adjacent light guide plate substrates, which can effectively solve the problem of light cross-cutting between adjacent photon emission areas. At the same time, the anti-light-crossing structural component can block the light mixing area of ​​each light guide plate substrate, which can effectively solve the problem of stray light overflow in the light mixing area of ​​each light guide plate substrate. Furthermore, the number of light guide plate substrates can be flexibly set according to application requirements, and the lighting pattern of each photon emission area can be further defined by the shape design of the anti-light-crossing structural component. Since the shape design of the constraint holes of each pattern can be different, it is possible to arbitrarily splice and combine various patterns.

[0027] In some embodiments, the length, width, and height of the micro-nano optical structure are all less than or equal to 10 μm, or the length, width, and height of the micro-nano optical structure are all less than or equal to 300 nm;

[0028] The spacing between adjacent micro / nano optical structures shall not exceed 20 times the maximum value of the length, width, and height of the micro / nano optical structure.

[0029] Using the above design, when the length, width, and height of the micro-nano optical structure are all less than or equal to 10 μm, a visual semi-transparent or high-transparent effect can be achieved. When the length, width, and height of the micro-nano optical structure are all less than or equal to 300 nm, a visually completely transparent effect can be achieved. At the same time, limiting the spacing between adjacent micro-nano optical structures to within 20 times the maximum size can avoid the formation of obvious light-emitting particles, breakpoints, or local dark areas due to excessively sparse micro-nano optical structures, which is beneficial to improving the continuity of surface emission.

[0030] In some embodiments, the circumferential outer edge of each light guide plate substrate is sealed with reflective strips at positions other than the light guide plate light inlet to prevent light from passing through.

[0031] By employing the above design, reflective strips are placed at positions other than the light-incoming portion of the light guide plate. This reduces light leakage from the non-light-incoming edge of the light guide plate substrate and allows some edge light to return to the interior of the light guide plate substrate for continued propagation, thereby improving light utilization and the brightness of each photon-emitting region. Since the reflective strips are only located on the circumferential outer edge of the light guide plate substrate, they do not compromise the frontal transparency of the substrate when it is not illuminated.

[0032] The second aspect of this application relates to an optical system, including a bracket and the aforementioned high-performance modular patterned light guide plate. The light guide plate body is mounted on the bracket, and at least one lamp plate is mounted on the bracket. Each lamp plate integrates at least one set of mini LED lamp groups. Each light guide plate light intake section is equipped with one set of the mini LED lamp groups, and each mini LED lamp group consists of a row of mini LED beads arranged along the length direction of the corresponding light guide plate light intake section.

[0033] The optical system described above not only possesses all the advantages of the high-performance modular patterned light guide plate, but also utilizes mini LED light groups for light intake. Due to the small size and spacing of the mini LED beads, a shorter mixing distance is required between the light-intake part of the light guide plate and the surface-emitting optical texture set. This reduces the bright and dark stripes and shadows generated by adjacent beads, while significantly increasing the brightness of the photon-emitting area. The average brightness of the photon-emitting area can reach over 3000 nits, further enhancing the overall lighting effect of the lamp. Therefore, a reflective film is not required on the back of the light guide plate, and the static appearance is transparent when the optical system is not lit, thus enhancing the high-end feel of the lamp.

[0034] The third aspect of this application relates to a lamp fixture, including a lamp housing, a lamp shade, and the aforementioned optical system, wherein the lamp shade covers the lamp housing and together with the lamp housing forms a mounting cavity, and the optical system is installed in the mounting cavity, with the light emission direction of all photon emission regions facing the lamp shade.

[0035] By using the above-mentioned lamps, all the advantages of the aforementioned optical system can be achieved.

[0036] The fourth aspect of this application relates to a processing method for the above-mentioned high-performance modular patterned light guide plate, which is carried out according to the following steps:

[0037] S1. A prototype of an imprinting mold with a reverse micro-nano texture set is prepared by photolithography. The imprinting mold prototype is made conductive, and nickel-cobalt alloy electroforming is performed on the working surface of the imprinting mold prototype after the conductive treatment. After separating the imprinting mold prototype, an imprinting mold is obtained. The working surface of the imprinting mold has at least one reverse micro-nano texture set that is adapted to the surface-emitting optical texture set.

[0038] S2. First, polish the surface of the embossing mold opposite to the working surface, then stress anneal the embossing mold, and finally form an anti-stick layer on the working surface of the embossing mold.

[0039] S3. A light guide plate body without glue curing layer blocks is formed by injection molding. The light guide plate body is composed of a light guide plate substrate made of transparent thermoplastic resin, or it is composed of an anti-light-spreading structural component made of opaque thermoplastic resin and several light guide plate substrates made of transparent thermoplastic resin.

[0040] S4. The surface of all light guide plate substrates prepared in step S3 away from the photon emission region is sequentially degreased and cleaned, oxygen plasma activated, pre-coated with a base film, and cleaned.

[0041] S5. After applying a layer of UV-curable imprinting adhesive of a set thickness to at least one area on the side of all light guide plate substrates away from the photon emission area after step S4, the UV-curable imprinting adhesive of each area is heated in a low vacuum environment so that the UV-curable imprinting adhesive of each area is uniformly attached to the side of the corresponding light guide plate substrate away from the photon emission area in a semi-cured state.

[0042] S6. Perform the following steps simultaneously on all light guide plate substrates or on each light guide plate substrate individually in a vacuum environment: simultaneously press the working surface of the imprinting mold onto the semi-cured UV-curable imprinting adhesive in all regions, so that the UV-curable imprinting adhesive in each region fills the reverse micro-nano texture set on the working surface of the imprinting mold, and then irradiate the UV-curable imprinting adhesive in each region by passing UV light through the light guide plate substrate, so that the side surface of the light guide plate substrate away from the photon emission region is cured to form at least one adhesive curing layer block, and the side surface of each adhesive curing layer block away from the light guide plate substrate has at least one surface-emitting optical texture set, and then separate the imprinting mold from all adhesive curing layer blocks.

[0043] S7. Heat treatment is performed on the high-performance modular patterned light guide plate after demolding so that each glue curing layer block and the corresponding light guide plate substrate are completely cured into one piece and the residual stress between each glue curing layer block and the corresponding light guide plate substrate layer is released to obtain a high-performance modular patterned light guide plate finished product.

[0044] S8. Repeat steps S3-S7 until the number of finished high-performance modular patterned light guide plates reaches the set value.

[0045] Using the above processing methods, the embossing mold is prepared by photolithography and nickel-cobalt alloy electroforming, which can produce reverse micro-nano texture assemblies with high precision and give the embossing mold high hardness, wear resistance and dimensional stability. Polishing and stress annealing the back of the embossing mold can improve the flatness of the embossing mold and reduce warping and dimensional drift during long-term use. Forming an anti-stick layer on the working surface can reduce the adhesion between the embossing adhesive and the mold, and reduce mold sticking and micro-nano structure tearing. The light guide plate substrate is subjected to degreasing cleaning, oxygen plasma activation, pre-coating of the base film and dust-free treatment in sequence. The process improves the wettability and interfacial bonding strength of the imprinted adhesive on the light guide plate substrate surface, reducing pinholes, bubbles, and interlayer delamination. Imprinting under vacuum removes air between the mold's micro-nano texture and the imprinted adhesive, improving the integrity of the micro-nano texture filling. UV exposure on one side of the light guide plate substrate allows for curing without a transparent metal mold, reducing mold costs. Post-demolding heat treatment promotes further curing of the adhesive curing layer and releases residual stress between the cured adhesive layer and the light guide plate substrate, improving product performance stability. Furthermore, the injection mold is universal across multiple products with the same light guide plate dimensional requirements; different imprinting molds are needed for different light-emitting patterns, and vice versa. Products with the same light-emitting pattern can use the same imprinting mold, requiring only the injection molding of the corresponding light guide plate substrate according to different product dimensions, thus achieving modular design. Attached Figure Description

[0046] Figure 1 A schematic diagram of the layered structure of the light guide plate substrate and the adhesive curing layer block;

[0047] Figure 2 This is a schematic diagram of the front structure of the high-performance modular patterned light guide plate of Example 1;

[0048] Figure 3 This is a schematic diagram of the back structure of the high-performance modular patterned light guide plate of Example 1;

[0049] Figure 4 This is a schematic diagram of the back structure of the high-performance modular patterned light guide plate in Example 2;

[0050] Figure 5This is a schematic diagram of the back structure of the high-performance modular patterned light guide plate in Example 3;

[0051] Figure 6 This is a schematic diagram of the front structure of the high-performance modular patterned light guide plate of Example 7;

[0052] Figure 7 This is a schematic diagram of the back structure of the high-performance modular patterned light guide plate in Example 7;

[0053] Figure 8 This is a schematic diagram of the front structure of the high-performance modular patterned light guide plate of Example 6;

[0054] Figure 9 This is a schematic diagram of the back structure of the high-performance modular patterned light guide plate in Example 6;

[0055] Figure 10 This is a schematic diagram of the front structure of the high-performance modular patterned light guide plate in Example 5;

[0056] Figure 11 This is a schematic diagram of the back structure of the high-performance modular patterned light guide plate in Example 5;

[0057] Figure 12 This is a schematic diagram of the optical system in Example 9;

[0058] Figure 13 Optical effects of Examples 5-7 Figure 1 ;

[0059] Figure 14 Optical effects of Examples 5-7 Figure 2 ;

[0060] Figure 15 This is a schematic diagram of the structure of embodiment 1 of the micro-nano optical structure;

[0061] Figure 16 This is a schematic diagram of the structure of embodiment 2 of the micro-nano optical structure;

[0062] Figure 17 This is a schematic diagram of the structure of embodiment 3 of the micro-nano optical structure;

[0063] Figure 18 This is a schematic diagram illustrating the processing steps of a high-performance modular patterned light guide plate.

[0064] Explanation of reference numerals in the attached figures:

[0065] 1. Light guide plate body; 1a. Light guide plate substrate; 1a1. Photon emission area; 1b. Adhesive curing layer block; 1b1. Micro-nano optical structure; 1c. Light guide plate light inlet; 1d. Short-distance light mixing section; 2. Reflector strip; 3. Bracket; 3a. Light shield; 4. Lamp board; 4a. Mini LED lamp bead; 5. Lamp housing; 6. Lamp shade; 7. Mounting frame; 7a. Light shield; 7b. Light emission pattern constraint hole. Detailed Implementation

[0066] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0067] Example 1:

[0068] like Figures 1-3 As shown, a high-performance modular patterned light guide plate mainly includes a light guide plate body 1, which is a thin plate structure that can be bent and deformed. Specifically, the light guide plate body 1 includes a light guide plate substrate 1a made of transparent material and an adhesive curing layer block 1b formed on one side surface of the light guide plate substrate 1a in the thickness direction. The two together constitute a double-layer structure.

[0069] The light guide plate substrate 1a is a thin, flexible sheet structure made of transparent thermoplastic resin. Optical-grade PMMA or PC is preferred as the transparent thermoplastic resin, offering advantages such as high light transmittance and low shrinkage. At least two photon-emitting regions 1a1 are provided on one side of the light guide plate substrate 1a along its thickness direction. Both photon-emitting regions 1a1 are continuous, smooth surfaces without any visible frosted texture or optical serrations. The photon-emitting regions 1a1 can be planar, or they can be curved surfaces, freeform surfaces, or composite surfaces formed according to the shape of the luminaire.

[0070] The adhesive curing layer block 1b is cured and formed on the surface of the light guide plate substrate 1a away from the photon emission region 1a1. The adhesive curing layer block 1b is made of a transparent ultraviolet-curable resin. In this embodiment, the adhesive curing layer block 1b is preferably made of PDMS dimethyl silicone oil (water-soluble silicone oil), which has the advantages of being transparent after curing, having good adhesion to the light guide plate substrate 1a, having a low curing shrinkage rate, being able to bend with the light guide plate substrate 1a, and being less prone to cracking and delamination. Furthermore, in order to reduce the reflection loss at the interface between the light guide plate substrate 1a and the adhesive curing layer block 1b, the light guide plate substrate 1a and the adhesive curing layer block 1b are preferably made of materials with similar refractive indices.

[0071] In this embodiment, the thickness of the light guide plate substrate 1a is greater than or equal to 1.5 mm, which can provide a continuous propagation channel for light while maintaining thinness and flexibility, and meet the basic structural strength requirements under injection molding, clamping, and vehicle vibration environments. The adhesive curing layer block 1b has a thickness of 0.4-0.6 mm, which can cover the microscopic defects on the surface of the light guide plate substrate and provide sufficient material for the imprinting of micro-nano optical structures, while avoiding the increase in overall stiffness, increased material consumption, or insufficient curing caused by an excessively thick adhesive curing layer block.

[0072] In this embodiment, at least two semi-transparent or fully transparent surface-emitting optical texture sets are imprinted on the surface of the adhesive curing layer block 1b away from the light guide plate substrate 1a. Each surface-emitting optical texture set is composed of multiple micro-nano optical structures 1b1.

[0073] The micro / nano optical structure 1b1 can be a protruding structure, a grooved structure, or a combination of protruding and grooved structures. The three-dimensional shape of the micro / nano optical structure 1b1 is a microprism, a micro-pit, or a micro-protrusion, etc. Please refer to [link / reference]. Figures 14-16 The figures show micro / nano optical structures 1b1 with different morphologies and light-gathering methods. The specific shapes shown in the figures are for illustrative purposes only. In actual production, the micro / nano optical structure 1b1 with the corresponding structure can be selected according to the light guiding direction, the target light emission angle, the illuminated pattern, and the requirements for light emission uniformity.

[0074] In one structural size scheme, the length, width, and height of each micro / nano optical structure 1b1 are all less than or equal to 10 μm. For example, a single micro / nano optical structure 1b1 has a length of 5 μm, a width of 4 μm, and a height of 2 μm. The spacing between adjacent micro / nano optical structures 1b1 can be 10-20 μm, and does not exceed 20 times the maximum value among the length, width, and height. This size scheme can form a strong light-gathering effect through reflection, refraction, or scattering when illuminated, while in the unilluminated state, a single micro / nano optical structure 1b1 is not easily visible to the human eye, thus making the light guide plate body 1 appear translucent or highly transparent as a whole.

[0075] In another structural size scheme, the length, width, and height of each micro / nano optical structure 1b1 are all less than or equal to 300 nm. For example, a single micro / nano optical structure 1b1 has a length of 250 nm, a width of 200 nm, and a height of 150 nm. The spacing between adjacent micro / nano optical structures 1b1 can be 0.5-1 μm and does not exceed 20 times their maximum size. This size scheme makes the micro / nano optical structures 1b1 completely invisible when not illuminated, thus making the light guide plate body 1 a completely transparent thin plate.

[0076] In this embodiment, at least one section of light guide plate light-inlet portion 1c is provided on the circumferential outer edge of the light guide plate body 1.

[0077] When the light guide plate body 1 has only one section of light-inlet portion 1c, the density of the micro-nano optical structures 1b1 of the luminescent optical textures on each surface generally increases with the increase of the distance between them and the light-inlet portion 1c. That is, the micro-nano optical structures 1b1 are sparsely distributed in the near-light source region, have a medium density in the middle region, and are densely distributed in the far-light source region. The density of the micro-nano optical structures 1b1 can be continuously and gradually varied, or it can be varied in a multi-level stepwise manner.

[0078] When the light guide plate body 1 is provided with two or more light guide plate light inlet sections 1c, for any position in the surface-emitting optical texture set, the distance from that position to each light guide plate light inlet section 1c can be calculated, and then the arithmetic mean of these distances can be calculated. Based on this average distance, the density of the corresponding micro-nano optical structure 1b1 can be determined.

[0079] In this embodiment, the outer circumferential edge of the light guide plate body 1 is sealed with a reflective strip 2 at the position other than the light-incoming part 1c of the light guide plate. The reflective strip 2 is preferably made of white polyester reflective film or reflective coated tape. The reflective strip 2 only covers the corresponding side edge of the light guide plate body 1, thereby both recovering light leaking from the non-light-incoming edge and maintaining the overall transparency of the light guide plate body 1 when it is not lit.

[0080] In this embodiment, the light guide plate body 1 can be bent without causing obvious cracking, permanent creases, or delamination of the adhesive cured layer block 1b. The minimum bending radius of the light guide plate body 1 is 40mm, which allows the light guide plate to adapt to the curved surface, corner surface, or irregular continuous curved surface inside the lamp, thus providing good versatility.

[0081] For the high-performance modular patterned light guide plate of this embodiment, when the external light source is not lit, ambient light can pass through the light guide plate substrate 1a and the adhesive curing layer block 1b, and the micro-nano optical structure 1b1 is not easily visible to the naked eye. Therefore, the light guide plate body 1 presents a completely transparent or semi-transparent sheet effect. When the external light source is lit, light enters the light guide plate body 1 from the light guide plate light inlet 1c and propagates in the composite structure formed by the light guide plate substrate 1a and the adhesive curing layer block 1b. After the light reaches the micro-nano optical structure 1b1, its propagation direction changes through reflection, refraction and / or scattering. At least a portion of the light is directed toward the corresponding photon emission region 1a1 and emitted from the corresponding photon emission region 1a1. That is, each photon emission region 1a1 is lit by the light attracted by the corresponding surface-emitting optical texture set and presents a predetermined pattern of the surface-emitting optical texture set.

[0082] Example 2:

[0083] Please see Figure 1 , Figure 2 and Figure 4 This embodiment discloses a high-performance modular patterned light guide plate, which is basically the same as that in embodiment 1, except that the number of adhesive curing layer blocks 1b is greater than 1 and less than the number of photon emitting regions 1a1.

[0084] Therefore, the projection of each adhesive-cured layer block 1b onto the side surface of the light guide plate substrate 1a where a photon-emitting region 1a1 is located covers at least one photon-emitting region 1a1. The side surface of each adhesive-cured layer block 1b away from the light guide plate substrate 1a is formed with a plurality of surface-emitting optical texture sets that match the corresponding photon-emitting region 1a1, i.e., each surface-emitting optical texture set corresponds one-to-one with each photon-emitting region 1a1. The design of Embodiment 2 enables the adhesive-cured layer blocks 1b to be presented on the light guide plate substrate 1a in the number of times they are present during the processing of high-performance modular patterned light guide plates, thereby reducing the size of the imprinting mold.

[0085] Example 3:

[0086] Please see Figure 1 , Figure 2 and Figure 5 This embodiment discloses a high-performance modular patterned light guide plate, which is basically the same as that in embodiment 1, except that the number of adhesive curing layer blocks 1b is equal to the number of photon emitting regions 1a1.

[0087] Each adhesive-cured layer block 1b projects onto one side surface of the light guide plate substrate 1a, where a photon-emitting region 1a1 is located, covering a corresponding photon-emitting region 1a1. Each adhesive-cured layer block 1b has a surface-emitting optical texture set matching the corresponding photon-emitting region 1a1 formed on the side surface away from the light guide plate substrate 1a. The design of Example 3 is suitable for manufacturing ultra-large light guide plate bodies 1, while also ensuring high processing precision for each surface-emitting optical texture set.

[0088] Example 4:

[0089] Please see Figure 18 A method for processing a high-performance modular patterned light guide plate for Embodiment 1, Embodiment 2, or Embodiment 3, comprising the following steps:

[0090] S1. A prototype of an imprinting mold with a reverse micro-nano texture set is prepared by photolithography. The imprinting mold prototype is made conductive, and nickel-cobalt alloy electroforming is performed on the working surface of the imprinting mold prototype after the conductive treatment. After separating the imprinting mold prototype, an imprinting mold is obtained. The working surface of the imprinting mold has at least one reverse micro-nano texture set that is adapted to the surface-emitting optical texture set.

[0091] Specifically, step S1 includes the following steps:

[0092] S101. Photoresist is coated on a glass substrate or silicon substrate, and a reverse micro-nano texture set prototype is formed on the glass substrate or silicon substrate through exposure, development and etching processes. After completion, an imprint mold prototype with reverse micro-nano texture set is obtained.

[0093] S102. Prepare a nickel-based electroforming solution with aminosulfonic acid, controlling the nickel ion concentration at 120-150 g / L, the cobalt ion concentration at 1-3 g / L, and the pH value at 3.8-4.2. Maintain the electroforming solution temperature at 45-50℃. During the electroforming process, circulate and filter the electroforming solution to remove solid impurities.

[0094] S103. Connect the conductive die prototype to the cathode, and connect the high-purity nickel-cobalt anode plate to the anode. The distance between the cathode and the anode should be controlled at 10-15 cm. Stir the electroforming solution at low speed to ensure that the metal ions are evenly distributed inside the electroforming tank.

[0095] S104. Segmented constant current electroforming deposition, following these steps:

[0096] First, initial deposition is performed at a current density of 0.2 A / dm², which allows the nickel-cobalt alloy to preferentially fill small trenches such as microgrooves and micropores, avoiding abnormal thickening or burrs at the structural tips caused by high current density.

[0097] After the initial deposition is completed, the current density is gradually increased to 0.5-0.8 A / dm² to continue the thickening electroforming process. In this embodiment, the electroforming time is approximately 4-8 hours, and the final nickel-cobalt alloy layer thickness is 0.3-0.5 mm.

[0098] After electroforming, the mold blank is removed, rinsed thoroughly with deionized water to remove residual electroforming solution from the surface, and then dried with low-temperature clean hot air.

[0099] S105. Immerse the electroformed blank with the imprinting mold prototype into a photoresist stripping solution at 80°C for 20-40 minutes to allow the photoresist to fully swell and decompose. Then, slowly separate the metal mold and the substrate (glass substrate or silicon substrate) along the edge of the substrate to obtain the imprinting mold. The working surface of the imprinting mold has a reverse micro-nano texture set that is adapted to the surface-emitting optical texture set.

[0100] Furthermore, the internal structure of the microgrooves in the metal mold is cleaned with plasma water to remove residual adhesive residue and ensure that the microstructure outline remains intact and unobstructed.

[0101] S2. First, polish the surface of the embossing mold opposite to the working surface, then stress anneal the embossing mold, and finally form an anti-stick layer on the working surface of the embossing mold.

[0102] Specifically, firstly, the back of the embossing mold without patterns is finely ground with diamond grinding discs, and then mirror polished until the surface roughness Ra≤0.01μm, thereby controlling the overall thickness and flatness of the embossing mold, eliminating warping, and ensuring uniform force during embossing.

[0103] Then, the embossing mold is placed in a nitrogen-protected oven and annealed at 200°C for 30 minutes to release residual stress formed during the electroforming process and prevent dimensional drift and warping from occurring during long-term embossing. After annealing, it is allowed to cool naturally to room temperature.

[0104] Finally, due to the high surface energy of the imprinting mold, the UV-cured adhesive is prone to sticking and tearing the microstructure during imprinting. Therefore, a low surface energy anti-sticking coating is required: the imprinting mold is placed in an oxygen plasma treatment device, and the side with the reverse micro-nano texture is activated for about 1 minute. Then, the imprinting mold is placed in a vacuum deposition chamber for vapor deposition with perfluorooctyltrichlorosilane, and held at 120°C for 15 minutes. After deposition, nitrogen gas is introduced for purging to remove excess silane, forming a low surface energy anti-sticking layer on the side of the imprinting mold with the reverse micro-nano texture.

[0105] S3. A light guide plate substrate 1a, which is made of transparent thermoplastic resin in one injection mold and is capable of transmitting light.

[0106] Specifically, the transparent thermoplastic resin used to prepare the light guide plate substrate 1a is preferably optical-grade PC or PMMA material, which has the advantages of high light transmittance and low shrinkage. After the light guide plate substrate 1a is injection molded, its surface needs to be screened, and light guide plate substrates 1a without bubbles, flow marks, and with a smooth surface need to be selected to proceed to the next step.

[0107] S4. The surface of the light guide plate substrate 1a obtained in step S3 away from the photon emission region 1a1 is sequentially subjected to degreasing cleaning, oxygen plasma activation treatment, pre-coating of the base film, and dust-free treatment.

[0108] Specifically, firstly, the light guide plate substrate 1a is immersed in a cleaning solution suitable for the plastic material for ultrasonic cleaning for 3 minutes to remove residual mold release agent, grease, and particulate contaminants from the injection molding process. After cleaning, it is rinsed with deionized water and dried with low-temperature clean hot air.

[0109] Then, the cleaned light guide plate substrate 1a is placed in an oxygen plasma treatment chamber, oxygen is introduced, and it is treated at 100 W RF power for 30-40 seconds. This generates hydroxyl groups (-OH) on the surface of the light guide plate substrate 1a, which greatly improves the spreadability and interfacial adhesion of the photocurable adhesive.

[0110] According to product requirements, an acrylic base film with a thickness of about 50 nm can be spin-coated onto the activated surface to fill the minor unevenness on the surface of the light guide plate substrate 1a and improve the interfacial bonding strength between the UV-curable imprinting adhesive and the light guide plate substrate 1a.

[0111] Finally, within 10 minutes after the oxygen plasma treatment ends, proceed to step S5 to prevent the surface hydroxyl groups from failing.

[0112] S5. After applying a layer of UV-curable imprinting adhesive of a set thickness to the surface of the light guide plate substrate 1a away from the photon emission region 1a1 after the processing in step S4, the UV-curable imprinting adhesive is heated in a low vacuum environment so that the UV-curable imprinting adhesive is uniformly attached to the surface of the light guide plate substrate 1a away from the photon emission region 1a1 in a semi-cured state.

[0113] Specifically, PDMS dimethyl silicone oil, which can cure under ultraviolet light, was selected as the UV-curable imprinting adhesive. The UV-curable imprinting adhesive was applied to the surface of the light guide plate substrate 1a away from the photon emission region 1a1 using a spin coating method at a speed of 400-600 r / min. In this embodiment, the thickness of the UV-curable imprinting adhesive was controlled to be 0.4-0.6 mm.

[0114] After coating is completed, the light guide plate body 1 is subjected to a low vacuum degassing treatment for about 30 seconds to remove tiny air bubbles inside the UV-curable imprinting adhesive and at the interface between the UV-curable imprinting adhesive and the light guide plate substrate 1a.

[0115] S6. Under vacuum conditions, the working surface of the imprinting mold is pressed onto the semi-cured UV-curable imprinting adhesive, causing the UV-curable imprinting adhesive to fill the reverse micro-nano texture set on the working surface of the imprinting mold. Then, the UV-curable imprinting adhesive is irradiated with UV light through the light guide plate substrate 1a, causing at least one adhesive curing layer block 1b to be cured on the side of the light guide plate substrate 1a away from the photon emission region 1a1. Each adhesive curing layer block 1b has at least one surface-emitting optical texture set on the side of the light guide plate substrate 1a away from it. Subsequently, the imprinting mold is separated from the adhesive curing layer block 1b.

[0116] Specifically, an imprinting mold treated with anti-sticking is installed on an imprinting device, with the side having the reverse micro-nano texture set facing the UV-cured imprinting adhesive.

[0117] The positioning mechanism aligns the imprinting mold with the UV-curable imprinting adhesive. After alignment, the imprinting chamber is closed and a vacuum of 0.01 Pa is applied to prevent incomplete filling and air bubble defects.

[0118] In a vacuum environment, the imprinting mold is gradually brought into contact with UV-cured imprinting adhesive, and an initial pressing pressure of 0.1-0.3 MPa is applied. The pressing pressure is evenly transmitted from the center area to the periphery, allowing the imprinting adhesive to fully fill the microprism grooves of the imprinting mold.

[0119] During the imprinting process, keep the light guide plate body 1 and the imprinting mold parallel to prevent excessive local pressure from causing uneven thickness of the UV-cured imprinting adhesive or lateral deformation of the formed surface luminescent optical texture assembly.

[0120] Then, the UV-curable imprinting adhesive is irradiated by passing UV light through the light guide plate substrate 1a. The UV light wavelength is 365nm, the light intensity is 15mW / cm², and the irradiation time is 15-30s.

[0121] During the ultraviolet exposure process, the pressing pressure is maintained at 0.2-0.4 MPa, so that the ultraviolet-cured imprinting adhesive still adheres to the surface of the imprinting mold when it cures and shrinks, reducing the collapse of the top of the structure, the tilting of the side walls and the dimensional shrinkage. Finally, each adhesive curing layer block 1b is formed, and each adhesive curing layer block 1b has at least one set of surface-emitting optical textures on the side surface away from the light guide plate substrate 1a.

[0122] S7. Heat-treat the high-performance modular patterned light guide plate after demolding to completely solidify each adhesive curing layer block 1b and the light guide plate substrate 1a into one piece and release the residual stress between each adhesive curing layer block 1b and the light guide plate substrate 1a, thereby obtaining a finished high-performance modular patterned light guide plate.

[0123] Specifically, after curing, the embossing mold is slowly raised and peeled off at a uniform speed. The embossing mold can be reused tens of thousands of times after cleaning.

[0124] The demolded light guide plate body 1 is placed in a nitrogen-protected oven and treated at 110℃ for 15-25 minutes. This heat treatment is mainly used to promote further curing of the imprinting adhesive, release residual stress, and improve interface stability. After the heat treatment, a high-performance modular patterned light guide plate is obtained.

[0125] S8. Repeat steps S3-S7 until the number of finished high-performance modular patterned light guide plates reaches the set value.

[0126] Example 5:

[0127] Please see Figure 10 and Figure 11This embodiment discloses a high-performance modular patterned light guide plate, which is basically the same as one of the embodiments 1, 2 and 3. The difference is that: the surface of the light guide plate substrate 1a away from the glue curing layer block 1b is covered with an anti-light-spreading structure 1d. The anti-light-spreading structure 1d, which is made of opaque material, is integrally formed with the light guide plate substrate 1a through a two-color injection molding process. The anti-light-spreading structure 1d has pattern constraint holes 1d1 that correspond one-to-one with each photon emission area 1a1. That is, the projection of each photon emission area 1a1 on the anti-light-spreading structure 1d completely covers the corresponding pattern constraint hole 1d1.

[0128] Through this design, by using the above design, a layer of anti-light-spreading structural component 1d is formed on the surface of the light guide plate substrate 1a using a two-color injection molding process. Although this increases the thickness of the light guide plate body 1, it effectively improves the structural strength of the light guide plate body 1. At the same time, the light guide plate body 1 still has excellent bending performance, and no obvious bright spots appear at the bending points of the light guide plate body, ensuring the uniformity of the light emission effect of each photon-emitting region of the light guide plate. This allows the high-performance modular patterned light guide plate of this embodiment to still be very convenient for curved and irregular shape designs. In addition, since each pattern constraint hole exposes only the photon-emitting region on the outer surface of the light guide plate substrate, the shape design of each pattern constraint hole can not only further define the lighting pattern of each photon-emitting region, but also the shape design of each pattern constraint hole can be different, thereby realizing arbitrary splicing and combination of various patterns. Furthermore, the anti-light-spreading structural component can also effectively solve the problem of stray light overflow between adjacent photon-emitting regions and the light mixing region of the light guide plate substrate.

[0129] It should be noted that the number of adhesive curing layer blocks 1b can be 1, and the relationship between the set of light-emitting optical textures on each surface and the adhesive curing layer blocks 1b is the same as in Example 1. The number of adhesive curing layer blocks 1b can also be greater than 1 and less than the number of photon-emitting regions 1a1. The relationship between the set of light-emitting optical textures on each surface and the adhesive curing layer blocks 1b is the same as in Example 2. The number of adhesive curing layer blocks 1b can even be equal to the number of photon-emitting regions 1a1. The relationship between the set of light-emitting optical textures on each surface and the adhesive curing layer blocks 1b is the same as in Example 3.

[0130] Lighting effects Figure 13 and Figure 14 As shown, different surfaces of luminescent optical texture sets can take different shapes, and by combining the various surfaces of luminescent optical texture sets, relatively complex combined patterns can be formed. Furthermore, by cooperating with the light source, relatively complex lighting effects such as zoned lighting, color-separated lighting effects, and dynamic flowing light effects can be achieved.

[0131] Example 6:

[0132] Please see Figure 8 and Figure 9 This embodiment discloses a high-performance modular patterned light guide plate, which is basically the same as that of embodiment 5, except that: the light guide plate body 1 includes an anti-light-spreading structural component 1d and at least two light guide plate substrates 1a disposed on one side of the thickness direction of the anti-light-spreading structural component 1d. The anti-light-spreading structural component 1d, which is made of opaque material, and each light guide plate substrate 1a, which is made of transparent material, are integrally formed by a two-color injection molding process. Each light guide plate substrate 1a has at least one photon emission region 1a1 on the side near the anti-light-spreading structural component 1d. The anti-light-spreading structural component 1d has a photon emission region 1a1 that is connected to each photon emission region 1a1. Each photon region 1a1 corresponds to a pattern constraint hole 1d1. On the side of each light guide plate substrate 1a away from the anti-light-spreading structure 1d, at least one adhesive curing layer block 1b is formed by curing with transparent adhesive. The projection of each adhesive curing layer block 1b on the side surface of the corresponding light guide plate substrate 1a where the photon region 1a1 is set covers at least one photon region 1a1. On the side surface of each adhesive curing layer block 1b away from the corresponding light guide plate substrate 1a, a plurality of surface-emitting optical texture sets that match the corresponding photon region 1a1 are imprinted.

[0133] In this embodiment, the anti-light-spreading structural component and multiple light guide plate substrates are integrally molded using a two-color injection molding process, which effectively improves the structural strength of the light guide plate body. At the same time, the number of light guide plate substrates can be flexibly set according to the needs of the process and application. Furthermore, the pattern constraint holes ensure that only the photon-emitting area is exposed on the outer surface of each light guide plate substrate. This not only allows for secondary definition of the lighting pattern of each photon-emitting area using the shape design of each pattern constraint hole, but also allows for different shapes of each pattern constraint hole, thereby enabling arbitrary splicing and combination of various patterns. Moreover, the anti-light-spreading structural component can also effectively solve the problem of stray light overflow between adjacent photon-emitting areas and the light mixing area of ​​each light guide plate substrate.

[0134] Example 7:

[0135] Please see Figure 6 and Figure 7 This embodiment discloses a high-performance modular patterned light guide plate, which is basically the same as that in embodiment 6. The difference is that the light guide plate body 1 is integrally formed by a light-blocking anti-light-spreading structural component 1d made of opaque material and multiple light guide plate substrates 1a made of transparent material through a two-color injection molding process. Adjacent light guide plate substrates 1a are separated by anti-light-spreading partition ribs 1d2 of the anti-light-spreading structural component 1d. One side of each light guide plate substrate 1a in the thickness direction is a photon-emitting region 1a1. The other side of each light guide plate substrate 1a in the thickness direction is formed by curing a glue layer block 1b with transparent material. The surface of each glue layer block 1b away from the corresponding photon-emitting region 1a1 is embossed with a set of surface-emitting optical textures that match the corresponding photon-emitting region 1a1.

[0136] In this embodiment, the anti-light-crossing structural component and each light guide plate substrate are integrally molded using a two-color injection molding process. The anti-light-crossing partition ribs of the anti-light-crossing structural component separate adjacent light guide plate substrates, which can effectively solve the problem of light cross-cutting between adjacent photon emission areas. At the same time, the anti-light-crossing structural component can block the light mixing area of ​​each light guide plate substrate, which can effectively solve the problem of stray light overflow in the light mixing area of ​​each light guide plate substrate. Furthermore, the number of light guide plate substrates can be flexibly set according to application requirements, and the lighting pattern of each photon emission area can be further defined by the shape design of the anti-light-crossing structural component. Since the shape design of the constraint holes of each pattern can be different, it is possible to achieve arbitrary splicing and combination of various patterns.

[0137] Example 8:

[0138] Please see Figure 18 A processing method for a high-performance modular patterned light guide plate for Embodiment 5, Embodiment 6, or Embodiment 7, the main steps of which are basically the same as those of Embodiment 4, the difference being that step S3 is different.

[0139] Specifically, the light-blocking structural component 1d, which is integrally formed from opaque thermoplastic resin using a two-color injection molding process, and several light guide plate substrates 1a, which are formed from transparent thermoplastic resin.

[0140] The following is a reference example:

[0141] Step 301: First injection molding after mold closing: Close the injection mold, inject optical grade PC or PMMA hard plastic into the first injection barrel, melt at 130~250℃, press at 0.8~1MPa, hold pressure for 12min, and form each light guide plate substrate 1a in one step;

[0142] Step 302: Mold opening turntable repositioning: The moving mold rotates 180° to transfer the cavity with each light guide plate substrate 1a to the second injection station, and the new empty cavity enters the first injection station for synchronous injection molding.

[0143] Step 303: Second injection molding: The second injection barrel injects opaque PC or ABS, which is fused and wrapped around each light guide plate substrate 1a to form a two-color injection molded part;

[0144] Step 304: Gradient cooling demolding: Cool to room temperature at a uniform rate of 30℃ / min, cool for 5 minutes to release the internal stress of injection molding and prevent the light guide plate from warping and deforming after imprinting;

[0145] Step 305: Initial inspection of the substrate: Select two-color injection molded parts that are free of bubbles, flow marks, and have a smooth surface, and proceed to step S4.

[0146] Example 9:

[0147] Please see Figure 12An optical system includes a bracket 3, at least one lamp plate 4, and a high-performance modular patterned light guide plate of any one of Embodiments 1-3 and 5-7.

[0148] The light guide plate body 1 and each lamp plate 4 are mounted on the bracket 3, which is used to position and support the light guide plate body 1 and the lamp plates 4. In this embodiment, the bracket 3 is provided with a light guide plate mounting groove and a lamp plate mounting position. The circumferential edge of the light guide plate body 1 is embedded in the light guide plate mounting groove, and each lamp plate 4 is fixed in the lamp plate mounting position.

[0149] Furthermore, an elastic buffer pad is preferably provided at the contact position between the bracket 3 and the light guide plate body 1 to avoid excessive assembly pressure causing local indentation, stress cracking, or detachment of the adhesive curing layer 1b on the light guide plate substrate 1a.

[0150] In this embodiment, each light panel 4 integrates at least one set of mini LED light groups, and each light guide plate light inlet 1c is equipped with one set of the aforementioned mini LED light groups. Each mini LED light group consists of a row of mini LED beads 4a arranged along the length of the corresponding light guide plate light inlet 1c. The emitting surface of each mini LED bead 4a faces the corresponding light guide plate light inlet 1c, so that the light enters the light guide plate body 1 in a side-incident manner. Adjacent mini LED beads 4a are preferably arranged at equal intervals. The mini LED beads 4a are monochrome LEDs or RGB LEDs. For position lights, brake lights, or taillights, red mini LEDs can be used; for turn signals, yellow mini LEDs can be used; and for daytime running lights, white mini LEDs can be used. When using multi-color LEDs, different emitting colors and working modes can be switched by a controller.

[0151] Example 10:

[0152] A lamp includes a lamp housing, a lamp shade, and an optical system as described in Embodiment 9. The lamp shade covers the lamp housing and together with the lamp housing forms an installation chamber. The optical system is installed in the installation chamber, and the light emission direction of the photon emission region 1a1 is all towards the lamp shade.

[0153] The lamp in this embodiment can be used as a common automotive lamp or other lamp, such as a vehicle position light, brake light, turn signal, daytime running light, or combination taillight. When used as a vehicle taillight, multiple luminous pattern constraint holes 7b can be arranged laterally along the vehicle to create a continuous visual effect.

[0154] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention. Those skilled in the art, under the guidance of the present invention, can make various similar representations without departing from the spirit and claims of the present invention, and such modifications all fall within the protection scope of the present invention.

Claims

1. A high-performance modular patterned light guide plate, comprising a light guide plate body, characterized in that, The light guide plate body is a thin plate structure that can be bent and deformed. One side surface of the light guide plate body in the thickness direction is formed by at least one imprinting of at least two semi-transparent or completely transparent surface-emitting optical texture sets. The surface-emitting optical texture sets are composed of multiple micro-nano optical structures. The other side surface of the light guide plate body in the thickness direction has photon-emitting regions that correspond one-to-one with each surface-emitting optical texture set. At least one light guide plate light-inlet section is provided on the circumferential outer edge of the light guide plate body. After light enters the light guide plate body from each light guide plate light-inlet section, it is reflected and / or refracted by the micro-nano optical structures of each surface-emitting optical texture set and emitted to the corresponding photon-emitting region.

2. The high-performance modular patterned light guide plate according to claim 1, characterized in that, The light guide plate body includes a light guide plate substrate made of transparent material. The light guide plate substrate is a thin sheet structure that can be bent and deformed. Each photon emission region is disposed on one side surface of the light guide plate substrate in the thickness direction. The other side surface of the light guide plate substrate in the thickness direction is formed by curing a transparent adhesive to form an adhesive curing layer block with a number not exceeding the number of photon emission regions. When the number of adhesive curing layer blocks is 1, the projection of the adhesive curing layer block on the side surface of the light guide plate substrate where the photon emission area is set covers all the photon emission areas. The side surface of the adhesive curing layer block away from the light guide plate substrate is formed with the set of surface luminescent optical textures that correspond one-to-one with each photon emission area. When the number of adhesive curing layer blocks is greater than 1 and less than the number of photon emitting regions, the projection of each adhesive curing layer block on the side surface of the light guide plate substrate where the photon emitting region is located covers at least one photon emitting region, and the side surface of each adhesive curing layer block away from the light guide plate substrate is formed with a plurality of surface-emitting optical texture sets that are respectively matched with the corresponding photon emitting region. When the number of adhesive curing layer blocks is equal to the number of photon emitting regions, the projection of each adhesive curing layer block on the side surface of the light guide plate substrate where the photon emitting region is located covers a corresponding photon emitting region. Each adhesive curing layer block has a set of surface-emitting optical textures that match the corresponding photon emitting region formed on the side surface away from the light guide plate substrate.

3. The high-performance modular patterned light guide plate according to claim 2, characterized in that, The surface of the light guide plate substrate away from the adhesive curing layer is covered with an anti-light-spreading structural component. The anti-light-spreading structural component, made of opaque material, is integrally formed with the light guide plate substrate through a two-color injection molding process. The anti-light-spreading structural component has pattern constraint holes that correspond one-to-one with each photon emission area.

4. The high-performance modular patterned light guide plate according to claim 1, characterized in that, The light guide plate body includes an anti-light-spreading structural component and at least two light guide plate substrates disposed on one side of the thickness direction of the anti-light-spreading structural component. The anti-light-spreading structural component, made of opaque material, and each light guide plate substrate, made of transparent material, are integrally formed by a two-color injection molding process. Each light guide plate substrate has at least one photon-emitting region on the side near the anti-light-spreading structural component. The anti-light-spreading structural component has pattern constraint holes corresponding to each photon-emitting region. Each light guide plate substrate has at least one adhesive curing layer block on the side away from the anti-light-spreading structural component, which is cured with transparent adhesive. The projection of each adhesive curing layer block on the surface of the corresponding light guide plate substrate with a photon-emitting region covers at least one photon-emitting region. The surface of each adhesive curing layer block away from the corresponding light guide plate substrate is imprinted with a plurality of surface-emitting optical texture sets that match the corresponding photon-emitting region.

5. The high-performance modular patterned light guide plate according to claim 1, characterized in that, The light guide plate body is integrally formed by a light-blocking anti-light-spreading structural component made of opaque material and multiple light guide plate substrates made of transparent material through a two-color injection molding process. Adjacent light guide plate substrates are separated by anti-light-spreading partition ribs of the anti-light-spreading structural component. One side of each light guide plate substrate in the thickness direction is a photon-emitting region. The other side of each light guide plate substrate in the thickness direction is formed by curing a transparent adhesive to form an adhesive curing layer block. The surface of each adhesive curing layer block away from the corresponding photon-emitting region is embossed with a set of surface-emitting optical textures that match the corresponding photon-emitting region.

6. The high-performance modular patterned light guide plate according to any one of claims 2-5, characterized in that, The length, width, and height of the micro-nano optical structure are all less than or equal to 10 μm, or the length, width, and height of the micro-nano optical structure are all less than or equal to 300 nm. The spacing between adjacent micro / nano optical structures shall not exceed 20 times the maximum value of the length, width, and height of the micro / nano optical structure.

7. The high-performance modular patterned light guide plate according to any one of claims 2-5, characterized in that, The outer circumferential edge of each light guide plate substrate is sealed with reflective strips at the non-light guide plate light inlet positions to prevent light from passing through.

8. An optical system, characterized in that, The light guide plate includes a bracket and a high-performance modular patterned light guide plate as described in any one of claims 1-7. The light guide plate body is mounted on the bracket, and at least one light plate is mounted on the bracket. Each light plate integrates at least one set of mini LED light groups. Each light guide plate light intake section is equipped with one set of the mini LED light groups. Each mini LED light group consists of a row of mini LED beads arranged along the length direction of the corresponding light guide plate light intake section.

9. A lamp, characterized in that, The system includes a lamp housing, a lamp shade, and the optical system as described in claim 8. The lamp shade covers the lamp housing and together with the lamp housing forms a mounting chamber. The optical system is installed in the mounting chamber, and the light emission direction of all photon emission regions is towards the lamp shade.

10. A method for processing a high-performance modular patterned light guide plate according to any one of claims 2-7, characterized in that, Follow these steps: S1. A prototype of an imprinting mold with a reverse micro-nano texture set is prepared by photolithography. The imprinting mold prototype is made conductive, and nickel-cobalt alloy electroforming is performed on the working surface of the imprinting mold prototype after the conductive treatment. After separating the imprinting mold prototype, an imprinting mold is obtained. The working surface of the imprinting mold has at least one reverse micro-nano texture set that is adapted to the surface-emitting optical texture set. S2. First, polish the surface of the embossing mold opposite to the working surface, then stress anneal the embossing mold, and finally form an anti-stick layer on the working surface of the embossing mold. S3. A light guide plate body without glue curing layer blocks is formed by injection molding. The light guide plate body is composed of a light guide plate substrate made of transparent thermoplastic resin, or it is composed of an anti-light-spreading structural component made of opaque thermoplastic resin and several light guide plate substrates made of transparent thermoplastic resin. S4. The surface of all light guide plate substrates prepared in step S3 away from the photon emission region is sequentially degreased and cleaned, oxygen plasma activated, pre-coated with a base film, and cleaned. S5. After applying a layer of UV-curable imprinting adhesive of a set thickness to at least one area on the side of all light guide plate substrates away from the photon emission area after step S4, the UV-curable imprinting adhesive of each area is heated in a low vacuum environment so that the UV-curable imprinting adhesive of each area is uniformly attached to the side of the corresponding light guide plate substrate away from the photon emission area in a semi-cured state. S6. Perform the following steps simultaneously on all light guide plate substrates or on each light guide plate substrate individually in a vacuum environment: simultaneously press the working surface of the imprinting mold onto the semi-cured UV-curable imprinting adhesive in all regions, so that the UV-curable imprinting adhesive in each region fills the reverse micro-nano texture set on the working surface of the imprinting mold, and then irradiate the UV-curable imprinting adhesive in each region by passing UV light through the light guide plate substrate, so that the side surface of the light guide plate substrate away from the photon emission region is cured to form at least one adhesive curing layer block, and the side surface of each adhesive curing layer block away from the light guide plate substrate has at least one surface-emitting optical texture set, and then separate the imprinting mold from all adhesive curing layer blocks. S7. Heat treatment is performed on the high-performance modular patterned light guide plate after demolding so that each glue curing layer block and the corresponding light guide plate substrate are completely cured into one piece and the residual stress between each glue curing layer block and the corresponding light guide plate substrate layer is released to obtain a high-performance modular patterned light guide plate finished product. S8. Repeat steps S3-S7 until the number of finished high-performance modular patterned light guide plates reaches the set value.

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