Patterned flexible light guide decoration device

Abstract

The utility model relates to a patterned flexible light guide decoration device, which comprises a first base material layer; the first light guide layer is arranged on one side of the first base material layer, and the light guide layer comprises at least one group of light guide microstructures; the micro-nano structure layer is arranged on the other side of the first base material layer; the decorative coating is arranged on the side, away from the first base material layer, of the micro-nano structure layer. According to the patterned flexible light guide decoration device, the micro-nano structure layer is used for hidden display, or the effects of laser, platinum and three-dimensional embossment can be displayed. The patterned flexible light guide decorative device realizes uniform display of various light guide patterns, also has a decorative effect, forms different effects through various different combinations, and is rich in effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to display decoration technical field especially, it is a kind of patterned flexible light guide decorative device. BACKGROUND

[0002] Optoelectronic material field, optical engineering field and thin film technology field are important research direction in modern science and technology, involve the transmission, control and utilization of light. Among them, light guide film and optical decorative film are two important thin film materials, they have wide application in optoelectronic equipment, display and lighting equipment. The main function of light guide film is to evenly distribute light. In patent CN109557609B, light guide plate is used in the field of liquid crystal display, and warning message is displayed by means other than liquid crystal display when display fails. However, light guide plate has not been applied in decoration field. SUMMARY

[0003] Therefore, the utility model provides a kind of patterned flexible light guide decorative device, it is characterized by, including, first substrate layer;First light guide layer, the first light guide layer is set on the side of the first substrate layer, the first light guide layer includes at least one group of light guide microstructure group, the light guide microstructure group includes multiple light guide microstructures, the light guide microstructure is patterned arrangement, the light guide microstructure group is incident light to specific direction, carries out light guide, and presents pattern after emission;Micro-nano structure layer, the micro-nano structure layer is set on the other side of first substrate layer;Decorative coating, the decorative coating is set on the side of the micro-nano structure layer away from the first substrate layer.

[0004] In a feasible implementation mode, the micro-nano structure layer includes multiple convex structures, and the gap of the convex structure is filled with ink.

[0005] In a feasible implementation mode, the shape of the convex structure is cylinder or multi-prism, the width of the convex structure ranges from 5 μm to 80 μm, the height of the convex structure ranges from 6 μm to 8 μm, the height of the ink ranges from 2 μm to 5 μm; the ratio of the height of the ink to the height of the convex structure ranges from 1 / 3 to 2 / 3.

[0006] In a feasible implementation mode, the micro-nano structure layer includes multiple micro-nano structures, and a film coating layer is arranged in the shape of the micro-nano structure.

[0007] In a feasible implementation mode, the cross section of the micro-nano structure is one or more of micron or nanometer level structure of rectangle, triangle, wave shape, semicircle and step shape, the width of the micro-nano structure ranges from 300 nm to 200 μm, the height ranges from 50 nm to 20 μm, and the interval is 0-198 μm.

[0008] In one possible implementation, the decorative coating is a wood grain coating, or a technology grain coating, or a semi-transparent color coating, and the thickness of the decorative coating is 3-7 μm.

[0009] In one possible implementation, a hardening layer is further included, which is arranged on the decorative coating, away from the side of the substrate layer, and the thickness of the hardening layer is 3-4 μm.

[0010] In one possible implementation, the light-incident surface of the light guide microstructure is a trapezoidal plane, or an arc surface, or a combination of a plane and an arc surface; the groove type of the light guide microstructure includes a rectangular groove, or an elliptical groove, or a triangular groove, or a trapezoidal groove, or a rhombic groove, and the length of the groove type ranges from 20 μm to 200 μm, the width ranges from 5 μm to 20 μm, and the depth ranges from 3 μm to 10 μm; the included angle between the light-incident surface of the light guide microstructure and the reflecting surface of the first light guide layer ranges from 30° to 55°.

[0011] In one possible implementation, a first barrier layer is further included, which is located on the side of the first light guide layer away from the first substrate layer.

[0012] The material of the first barrier layer includes one or more of silver paste and titanium white powder.

[0013] The thickness of the first barrier layer is 20%-50% of the depth of the light guide microstructure on the first light guide layer.

[0014] The thickness of the first barrier layer is 4-5 μm.

[0015] In one possible implementation, a first low-refraction material layer is further included, which is located on the side of the first barrier layer away from the first substrate layer, the refractive index of the first low-refraction material layer is less than that of the first light guide layer, and the thickness of the first low-refraction material layer is 2-3 μm.

[0016] In one possible implementation, at least one light guide sheet layer is further included, which includes a second substrate layer and a second light guide layer arranged on the second substrate layer, the light guide sheet layer is arranged on the first light guide layer in a stacked manner, and the second substrate layer is adjacent to the first light guide layer.

[0017] In a feasible implementation, the second light guide layer comprises at least one set of light guide microstructure groups, each of the light guide microstructure groups comprises a plurality of light guide microstructures arranged in a pattern, and the light guide microstructure group guides, emits and presents a pattern for specific direction incident light; the light-incident surface of the light guide microstructure is a trapezoidal plane, or an arc surface, or a combination of a plane and an arc surface; the groove type of the light guide microstructure comprises a rectangular groove, an elliptical groove, a triangular groove, a trapezoidal groove or a rhombic groove, the length of the groove type ranges from 20 to 200 microns, the width ranges from 5 to 20 microns, and the depth ranges from 3 to 10 microns; and the included angle between the light-incident surface of the light guide microstructure and the reflecting surface of the second light guide layer ranges from 30 to 55 degrees.

[0018] In a feasible implementation, the second light guide layer comprises at least one set of light guide microstructure groups, each of the light guide microstructure groups comprises a plurality of light guide microstructures arranged in a pattern, and the light guide microstructure group guides, emits and presents a pattern for specific direction incident light; the light-incident surface of the light guide microstructure is a trapezoidal plane, or an arc surface, or a combination of a plane and an arc surface; the groove type of the light guide microstructure comprises a rectangular groove, an elliptical groove, a triangular groove, a trapezoidal groove or a rhombic groove, the length of the groove type ranges from 20 to 200 microns, the width ranges from 5 to 20 microns, and the depth ranges from 3 to 10 microns; and the included angle between the light-incident surface of the light guide microstructure and the reflecting surface of the second light guide layer ranges from 30 to 55 degrees.

[0019] The second barrier layer is made of one or more of silver paste and titanium white powder.

[0020] The thickness of the second barrier layer is 20 to 50 percent of the depth of the light guide microstructure on the second light guide layer.

[0021] The thickness of the second barrier layer is 4 to 5 microns.

[0022] In a feasible implementation, the second light guide layer comprises at least one set of light guide microstructure groups, each of the light guide microstructure groups comprises a plurality of light guide microstructures arranged in a pattern, and the light guide microstructure group guides, emits and presents a pattern for specific direction incident light; the light-incident surface of the light guide microstructure is a trapezoidal plane, or an arc surface, or a combination of a plane and an arc surface; the groove type of the light guide microstructure comprises a rectangular groove, an elliptical groove, a triangular groove, a trapezoidal groove or a rhombic groove, the length of the groove type ranges from 20 to 200 microns, the width ranges from 5 to 20 microns, and the depth ranges from 3 to 10 microns; and the included angle between the light-incident surface of the light guide microstructure and the reflecting surface of the second light guide layer ranges from 30 to 55 degrees.

[0023] The utility model discloses the beneficial effect lies in:

[0024] 1. The utility model discloses a micro -nano structure layer is set up in one side of first base material, and the micro -nano structure layer adopts the convex structure, and the clearance of convex structure is filled with ink, and the other side of base material sets up first light guide layer, and when there is no incident light, only the effect of decorative coating is shown, and the pattern of first light guide layer is not shown, thereby realizes the effect of hidden display, and when there is incident light, the pattern of first light guide layer is shown. The ratio range of the height of ink and the height of convex structure is 1 / 3~2 / 3, can satisfy the hidden effect when there is no incident light, and the light guide pattern brightness is even when there is incident light.

[0025] 2. The utility model discloses a plurality of micro-nano structures are arranged on the micro-nano structure layer, and the film coating layer is arranged in the micro-nano structure, and the plurality of micro-nano structures cross section is rectangle, triangle, wave shape, semicircle, step shape, and the effect such as laser, platinum, stereoscopic embossing is presented. When there is no incident light, the effect of micro-nano structure and decorative coating combination is displayed, that is, the effect structure of laser, platinum, stereoscopic embossing and decorative coating, and the effect is more rich, when there is incident light, the pattern of the first light guide layer is displayed. The film coating layer is arranged in the micro-nano structure, and the micro-nano structure is protected, and the micro-nano structure is filled with the decorative coating, and the light cannot be affected.

[0026] 3. The utility model discloses the included angle of the light receiving surface L1 of light guide microstructure 1211 with the reflection surface L2 of the first light guide layer is 30 DEG ~ 55 DEG, thereby making light can be close to the angle of normal incidence of the eye.

[0027] 4. The utility model discloses still through the first barrier layer, the appearance of light guide microstructure is protected, makes the patterned flexible light guide decorative device can and other materials are compounded, and the thickness of first barrier layer is 20% to 50% of the depth of the light guide microstructure on the first light guide layer, making the light can continue to spread to the light guide microstructure far from the light source, and the pattern brightness is uniform. The first low refractive material layer is arranged for protecting the first barrier layer, and because the refractive index of the first low refractive material layer is less than the refractive index of the first light guide layer, the light can be reduced, and the light can be reflected into the eye, and the light utilization rate is improved.

[0028] 5. The utility model discloses still through setting a plurality of light guide microstructure groups in the first light guide layer, and the light guide microstructure in each light guide microstructure group is arranged according to the set pattern, and each light guide microstructure group corresponds to the incident light of one direction, so that the pattern corresponding to the light guide microstructure group is presented after the light of the direction is shot, and different patterns are displayed in the same light guide layer under different direction incident light.

[0029] 6. The utility model discloses still through setting at least one light guide sheet layer, and the multilayer light guide sheet layer is stacked on the first light guide layer, and each light guide sheet layer reflects the incident light of a specific direction and displays the pattern of the light guide sheet layer, and the multilayer light guide sheet layer can display different patterns under different direction incident light, and a plurality of patterns can also be displayed on each light guide sheet layer, and the effect is more rich. Each light guide sheet layer can be processed independently, and the yield is higher, and the flexibility is good, and the light guide sheet layer can be selected more flexibly according to the display requirements of different patterns.

[0030] 7. The utility model discloses still can set up the second barrier layer on the light guide sheet layer of the outermost layer, and the thickness of second barrier layer is the 20% to 50% of the light guide microstructure depth on the second light guide layer, make light can continue to spread to the light guide microstructure far from the light source, and the pattern brightness is even. Set up the second low fold material layer for protecting the second barrier layer, and because the refractive index of second low fold material layer is less than the refractive index of second light guide layer, can reduce the light emission, is more favorable to the reflection of light and enters the human eye, improves the utilization of light. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is the schematic diagram of the patterned flexible light guide decorative device of the utility model embodiment one;

[0032] Figure 2 It is the schematic diagram of the light guide microstructure of the utility model embodiment one;

[0033] Figure 3 It is the light guide microstructure of different groove type of the utility model embodiment one, including: (a) rectangular groove, (b) oval groove, (c) triangular groove, (d) trapezoidal groove, (e) rhombic groove;

[0034] Figure 4 It is the light guide pattern schematic diagram of the patterned flexible light guide decorative device of the utility model embodiment one;

[0035] Figure 5 It is the schematic diagram of the patterned flexible light guide decorative device of the utility model embodiment two;

[0036] Figure 6 It is the schematic diagram of the micro-nano structure cross section shape of the patterned flexible light guide decorative device of the utility model embodiment two.

[0037] Figure 7 It is the schematic diagram of the patterned flexible light guide decorative device of the utility model embodiment three;

[0038] Figure 8 It is the schematic diagram of the light guide microstructure and first barrier layer of the utility model embodiment three;

[0039] Figure 9 It is the schematic diagram of the patterned flexible light guide decorative device of the utility model embodiment four;

[0040] Figure 10 It is the light guide pattern schematic diagram of the patterned flexible light guide decorative device of the utility model embodiment four;

[0041] Figure 11 It is the schematic diagram of the patterned flexible light guide decorative device of the utility model embodiment five. DETAILED DESCRIPTION

[0042] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0043] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0045] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0046] Example 1

[0047] like Figures 1-4 As shown, Figure 1 This is a schematic diagram of one embodiment of the patterned flexible light guide decorative device provided by this utility model, as shown below. Figure 1 As shown, the patterned flexible light guide decorative device 100 includes a first substrate layer 11, a first light guide layer 12, a micro / nano structure layer 13, a decorative coating 14, and a hardening layer 15. The first light guide layer 12 is disposed on one side of the first substrate layer 11; the micro / nano structure layer 13 is disposed on the other side of the first substrate layer 11; the decorative coating 14 is disposed on the side of the micro / nano structure layer 13 away from the first substrate layer 11; and the hardening layer 15 is disposed on the decorative coating 14 on the side away from the substrate layer 11.

[0048] In the embodiment, the micro-nano structure layer 13 comprises a plurality of convex structures 131, and gaps between the convex structures 131 are filled with ink 132. Preferably, the convex structures 131 are in the shape of a cylinder or a polygonal prism, the width of the convex structures 131 ranges from 5 μm to 80 μm, the height of the convex structures 131 ranges from 6 μm to 8 μm, and the height of the filled ink 132 ranges from 2 μm to 5 μm; the ratio of the height of the ink 132 to the height of the convex structures 131 ranges from 1 / 3 to 2 / 3.

[0049] In the embodiment, the first light guide layer 12 comprises at least one group of light guide micro-structures 121, each group of light guide micro-structures 121 comprises a plurality of light guide micro-structures 1211 arranged in a pattern, and each group of light guide micro-structures 121 guides light in a specific direction, such as light from a light source like an LED lamp, and emits and presents a pattern. Figure 2 As shown by arrows, the light changes the direction of emission after passing through the light-incident surface L1 of the light guide micro-structure 1211, and the light-incident surface L1 of the light guide micro-structure 1211 is a trapezoidal plane, or an arc surface, or a combination of a plane and an arc surface. Figure 3 As shown, the groove type of the light guide micro-structure 1211 comprises a rectangular groove, or an elliptical groove, or a triangular groove, or a trapezoidal groove, or a rhombic groove, the length of the groove type ranges from 20 μm to 200 μm, the width ranges from 5 μm to 20 μm, and the depth ranges from 3 μm to 10 μm; and the included angle between the light-incident surface L1 of the light guide micro-structure 1211 and the reflecting surface L2 of the first light guide layer 12 ranges from 30° to 55°.

[0050] In the embodiment, the decorative coating layer 14 is a wood grain coating layer, or a science and technology pattern coating layer, or a semi-transparent color coating layer, and the thickness of the decorative coating layer ranges from 3 μm to 7 μm.

[0051] In the embodiment, the hardening layer 15 plays a protective role and improves the scratch resistance, the scratch resistance, and the chemical resistance, and the thickness of the hardening layer ranges from 3 μm to 4 μm.

[0052] In the embodiment, since the micro-nano structure layer adopts convex structures and the gaps between the convex structures are filled with ink, when there is no incident light into the first light guide layer, the effect of the decorative coating layer is displayed; when there is incident light into the first light guide layer, the light guide micro-structures in the group of light guide micro-structures are arranged in a pattern, so that the pattern of the first light guide layer is displayed. When the light-incident surface of the light guide micro-structure is an arc surface, the light guide effect is more uniform, and the light bar is eliminated. The included angle between the light-incident surface of the light guide micro-structure and the reflecting surface of the first light guide layer ranges from 30° to 55°, so that the emitted light is perpendicular to the reflecting surface and enters the eye directly.

[0053] As shown in FIG. 1, the display device comprises a first light guide layer 12, a micro-nano structure layer 13, a decorative coating layer 14, and a hardening layer 15. Figure 4As shown, in the embodiment, the first light guide layer 12 includes two groups of light guide microstructure groups 121 and 122. The light guide microstructure group 121 presents a five-pointed star pattern, and the light guide microstructure group 122 presents a smiling face pattern. When the light of the light source such as an LED is incident on the first light guide layer 12 in the direction of incident light A, the incident light A is guided and emitted to display the five-pointed star pattern. When the light of the light source such as an LED is incident on the first light guide layer 12 in the direction of incident light B, the incident light B is guided and emitted to display the smiling face pattern. In other embodiments, more groups of light guide microstructure groups can be provided to display different patterns for light incident in different directions.

[0054] Compared with the prior art, the technical scheme has the following beneficial effects:

[0055] 1. When there is no incident light of the light source such as an LED, only the effect of the decorative coating is displayed, and the pattern of the first light guide layer is not displayed, thereby realizing the hidden display effect. When there is incident light of the light source such as an LED, the pattern of the first light guide layer is displayed.

[0056] 2. The first light guide layer is provided with a plurality of light guide microstructure groups, and the light guide microstructures in each light guide microstructure group are arranged in a set pattern. Each group of light guide microstructure groups corresponds to incident light in a direction, so that the pattern of the corresponding light guide microstructure group is presented after the light in the direction is incident, thereby realizing display of different patterns for different directions of incident light on the same light guide layer.

[0057] 3. The included angle between the light receiving surface L1 of the light guide microstructure 1211 and the reflecting surface L2 of the first light guide layer is in the range of 30°-55°, so that the light can be emitted at an angle close to the normal direction of the eye.

[0058] 4. The ratio of the height of the ink to the height of the convex structure is in the range of 1 / 3-2 / 3. If the ratio is too low, the hiding effect cannot be realized when there is no incident light, and the rear light guide microstructure is displayed. If the ratio is too high, there are obvious bright and dark areas on the pattern of the first light guide layer displayed when there is incident light, which affects the uniformity of the light guide pattern display. When the ratio is in the range of 1 / 3-2 / 3, the hiding effect can be realized when there is no incident light, and the light guide pattern displayed when there is incident light is bright and uniform.

[0059] Embodiment Two

[0060] As shown, the difference between the embodiment and Embodiment 1 is that the micro-nano structure layer is different. Figures 5-6 Figure 5 ​As shown, the patterned flexible light guide decorative device 200 includes a first substrate layer 21, a first light guide layer 22, a micro / nano structure layer 23, a decorative coating 24, and a hardening layer 25. The first light guide layer 22 is disposed on one side of the first substrate layer 21; the micro / nano structure layer 23 is disposed on the other side of the first substrate layer 21; the decorative coating 24 is disposed on the side of the micro / nano structure layer 23 away from the first substrate layer 21; and the hardening layer 25 is disposed on the decorative coating 24 on the side away from the substrate layer 21.

[0061] In this embodiment, the micro / nano structure layer 23 includes a plurality of micro / nano structures 231 and a coating layer 232 that is contoured to the micro / nano structures. For example... Figure 6 As shown, the cross-section of the micro / nano structure is one or more of the following micrometer- or nanometer-scale structures: rectangular, triangular, wavy, semi-circular, and stepped. The width of the micro / nano structure ranges from 300 nm to 200 μm, the height ranges from 50 nm to 20 μm, and the spacing is from 0 to 198 μm. A decorative coating 24 is applied to the micro / nano structure layer 23. The micro / nano structure can form optical effects such as laser, platinum, and three-dimensional relief. The coating layer 232 is used to protect the micro / nano structure 231, preventing it from being unable to react to ambient light after being filled with the decorative coating 24, thus preventing it from producing any effects.

[0062] In this embodiment, when there is no incident light, the patterned flexible light guide decorative device 200 displays the effect of the combination of micro-nano structure and decorative coating; when there is incident light, such as an LED light source, the pattern of the first light guide layer is displayed.

[0063] 1. When there is no incident light, the effect of the combination of micro-nano structure and decorative coating is displayed, and the pattern of the first light guide layer is not displayed. The laser, platinum, three-dimensional relief and other effects of the micro-nano structure under ambient light, together with the effect structure of the decorative coating, make the presented effect richer. When there is incident light, the pattern of the first light guide layer is displayed.

[0064] 2. A coating layer is set on the micro-nano structure to protect it and prevent it from being filled with decorative coatings. This prevents it from reacting with ambient light and thus avoids producing effects such as laser, platinum, or three-dimensional relief.

[0065] 3. The angle between the light-facing surface L1 of the light-guiding microstructure 1211 and the reflective surface L2 of the first light-guiding layer ranges from 30° to 55°, so that the light can be emitted at an angle close to the eye.

[0066] Example 3

[0067] like Figures 7-8 As shown, the difference between this embodiment and Embodiments 1 and 2 is that the patterned flexible light guide decorative device 300 is further provided with a first barrier layer 36 and a first low-refractive-index material layer 37, such as...Figure 7 As shown in the figure, the patterned flexible light guide decorative device 300 includes a first substrate layer 31, a first light guide layer 32, a micro-nano structure layer 33, a decorative coating layer 34, and a hardening layer 35. The first light guide layer 32 is arranged on one side of the first substrate layer 31; the micro-nano structure layer 33 is arranged on the other side of the first substrate layer 31; the decorative coating layer 34 is arranged on the side of the micro-nano structure layer 33 away from the first substrate layer 31; and the hardening layer 35 is arranged on the side of the decorative coating layer 34 away from the substrate layer 31. The first light guide layer 32 includes at least one set of light guide microstructure groups 322, and each light guide microstructure group includes a plurality of light guide microstructures 3221

[0068] In this embodiment, the first barrier layer 36 is located on the side of the first light guide layer 32 away from the first substrate layer 31; the material of the first barrier layer 36 includes one or more of silver paste and titanium white powder, and the silver paste or titanium white powder is filled into the light guide microstructures 3221 of the first light guide layer 32 in a filling manner and is stably baked and cured in the light guide microstructures 3221, such as Figure 8 As shown in the figure, the thickness h2 of the first barrier layer 36 is 20% to 50% of the depth h1 of the light guide microstructure 3221; and the thickness h2 of the first barrier layer 36 is 4 μm to 5 μm. Part of the light is reflected by the first barrier layer 36, and the thickness of the first barrier layer 36 is 20% to 50% of the depth of the light guide microstructure 3221, and the other part of the light passes through the light guide microstructure 3221 without the first barrier layer and reaches the light guide microstructure 3221 behind. If the thickness of the first barrier layer 36 is too large, more than 50%, most of the light will be reflected into the human eye by the light guide microstructure 3221 close to the light source, and the light entering the light guide microstructure 3221 far from the light source will be greatly weakened, resulting in uneven brightness of the presented pattern.

[0069] In this embodiment, the first low-refractive material layer 37 is located on the side of the first barrier layer 36 away from the first substrate layer 31, the refractive index of the first low-refractive material layer 37 is less than the refractive index of the first light guide layer 32, and the thickness of the first low-refractive material layer 37 is 2 μm to 3 μm. The first low-refractive material layer 37 is used to protect the first barrier layer 36, and because the refractive index of the first low-refractive material layer 37 is less than the refractive index of the first light guide layer 32, the light can be reduced, which is more conducive to reflecting the light into the human eye and improving the utilization of light.

[0070] In this embodiment, the micro-nano structure layer can be the micro-nano structure layer in Embodiment 1, which includes a plurality of convex structures, and the gaps of the convex structures are filled with ink, so that only the effect of the decorative coating is displayed when there is no incident light, and the pattern of the first light guide layer is displayed when there is incident light; the micro-nano structure layer can also be the micro-nano structure layer in Embodiment 2, which includes a plurality of micro-nano structures and a film layer arranged in a shape of the micro-nano structures, and the micro-nano structures can form optical effects such as laser, platinum, and three-dimensional relief, and when there is no incident light, the effect of the combination of the micro-nano structures and the decorative coating is displayed, and when there is incident light, the pattern of the first light guide layer is displayed.

[0071] Compared with the prior art, the technical scheme has the following beneficial effects:

[0072] 1. The thickness of the first barrier layer is 20% to 50% of the depth of the light guide microstructure on the first light guide layer. If the thickness of the first barrier layer is too large and higher than 50% of the depth of the light guide microstructure on the first light guide layer, most of the light will be reflected into the human eye by the light guide microstructure close to the light source, and the light entering the light guide microstructure far from the light source will be greatly weakened, resulting in uneven brightness of the presented pattern. The technical scheme makes the light continue to propagate to the light guide microstructure far from the light source, and the brightness of the presented pattern is uniform.

[0073] 2. The first low-refractive material layer is arranged to protect the first barrier layer, and because the refractive index of the first low-refractive material layer is smaller than the refractive index of the first light guide layer, the light can be reduced to exit, which is more conducive to reflecting the light into the human eye and improving the utilization rate of light.

[0074] 3. The first barrier layer is adopted in the scheme to protect the morphology of the light guide microstructure, so that the patterned flexible light guide decorative device can be compounded with other materials. If there is no first barrier layer, the adhesive layer coated when compounded with other materials will fill the light guide microstructure, so that the light guide microstructure cannot act on the light, which is greatly weakened, and even no light guide effect is generated.

[0075] Embodiment Four

[0076] As Figures 9-10As shown, the difference between this embodiment and embodiments one to three is that the patterned flexible light guide decorative device includes two light guide layers. The patterned flexible light guide decorative device 400 includes a first substrate layer 41, a first light guide layer 42, a micro-nano structure layer 43, a decorative coating 44, and a hardening layer 45. The first light guide layer 42 is disposed on one side of the first substrate layer 41; the micro-nano structure layer 43 is disposed on the other side of the first substrate layer 41; the decorative coating 44 is disposed on the side of the micro-nano structure layer 43 away from the first substrate layer 41; and the hardening layer 45 is disposed on the side of the decorative coating 44 away from the substrate layer 41. It also includes at least one light guide sheet layer 20, which includes a second substrate layer 201 and a second light guide layer 202 disposed on the second substrate layer 201. The light guide sheet layer 20 is superimposed on the first light guide layer 42, and the second substrate layer 201 is adjacent to the first light guide layer 42. This superposition can be achieved by assembly without the need for an adhesive layer.

[0077] The second light guide layer 202 includes at least one group of light guide microstructures, each group comprising a plurality of light guide microstructures arranged in a patterned manner. The light guide microstructure group guides incident light in a specific direction, emitting and displaying a pattern. The light-facing surface of each light guide microstructure is a trapezoidal plane, an arc surface, or a combination of a plane and an arc surface. The groove shape of the light guide microstructure includes a rectangular groove, an elliptical groove, a triangular groove, a trapezoidal groove, or a rhomboid groove. The length of the groove ranges from 20 μm to 200 μm, the width ranges from 5 μm to 20 μm, and the depth ranges from 3 μm to 10 μm. The angle between the light-facing surface of the light guide microstructure and the reflective surface of the second light guide layer ranges from 30° to 55°.

[0078] like Figure 10 As shown, the light-guiding microstructure group in the first light-guiding layer 42 presents a smiley face pattern, and the light-guiding microstructure group in the second light-guiding layer 202 presents a five-pointed star pattern. When the light from the LED light source is incident on the first light-guiding layer 42 in the direction of incident light A, the incident light A is guided and emitted to display the smiley face pattern. When the light from another LED light source is incident on the second light-guiding layer 202 in the direction of incident light B, the incident light B is guided and emitted to display the five-pointed star pattern. In other embodiments, there may also be multiple light-guiding layers to achieve different patterns displayed by light incident from different directions; there may also be multiple light-guiding layers, and each light-guiding layer may have multiple groups of light-guiding microstructures to achieve the display of more patterns.

[0079] In this embodiment, the micro-nano structure layer can be the micro-nano structure layer in Embodiment 1, which includes a plurality of convex structures, and the gaps of the convex structures are filled with ink, so that only the effect of the decorative coating is displayed when there is no incident light, and the pattern of the first light guide layer or the second light guide layer is displayed when there is incident light; the micro-nano structure layer can also be the micro-nano structure layer in Embodiment 2, which includes a plurality of micro-nano structures and a film layer arranged in a shape corresponding to the micro-nano structures, and the micro-nano structures can form optical effects such as laser, platinum, and three-dimensional relief, and when there is no incident light, the effect of the combination of the micro-nano structures and the decorative coating is displayed, and when there is incident light, the pattern of the first light guide layer or the second light guide layer is displayed.

[0080] Compared with the prior art, the technical scheme has the following beneficial effects:

[0081] 1. At least one light guide sheet layer is arranged, and a plurality of light guide sheet layers are arranged on the first light guide layer, each light guide sheet layer reflects incident light in a specific direction to display the pattern of the light guide sheet layer, and the plurality of light guide sheet layers can display different patterns for incident light in different directions; meanwhile, a plurality of patterns can also be displayed on each light guide sheet layer, and the effect is more rich. In this scheme, each light guide sheet layer can be processed separately, the yield is higher, and the flexibility is better, and the light guide sheet layer can be selected more flexibly according to the display requirements of different patterns.

[0082] Embodiment five

[0083] As shown in Figure 11 The difference between this embodiment and Embodiments 1 to 4 is that the patterned flexible light guide decorative device includes three light guide layers. The patterned flexible light guide decorative device 500 includes a first substrate layer 51, a first light guide layer 52, a micro-nano structure layer 53, a decorative coating layer 54, and a hardening layer 55. The first light guide layer 52 is arranged on one side of the first substrate layer 51. The micro-nano structure layer 53 is arranged on the other side of the first substrate layer 51. The decorative coating layer 54 is arranged on the side of the micro-nano structure layer 53 away from the first substrate layer 51. The hardening layer 55 is arranged on the side of the decorative coating layer 54 away from the substrate layer 51. The patterned flexible light guide decorative device further includes a light guide sheet layer 20 and a light guide sheet layer 20'. The light guide sheet layer 20 includes a second substrate layer 201 and a second light guide layer 202 arranged on the second substrate layer 201. The light guide sheet layer 20 is arranged on the first light guide layer 52, and the second substrate layer 201 is adjacent to the first light guide layer 52. The light guide sheet layer 20' includes a second substrate layer 201' and a second light guide layer 202' arranged on the second substrate layer 201'. The light guide sheet layer 20' is arranged on the light guide sheet layer 20.

[0084] The light guide sheet layer 20' can further be provided with a second isolation layer 203' on the light guide sheet layer 20' when it is the outermost layer, the second isolation layer 203' is located on the side of the second light guide layer 202' away from the second base material layer 201', and further comprises a second low-refraction material layer 204' located on the side of the second isolation layer 203' away from the second base material layer 201'.

[0085] The second light guide layer 202' comprises at least one set of light guide microstructure groups, each of which comprises a plurality of light guide microstructures arranged in a pattern, and the light guide microstructure group guides, emits and presents a pattern for light incident in a specific direction; the light-incident surface of the light guide microstructure is a trapezoidal plane, or an arc surface, or a combination of a plane and an arc surface; the groove type of the light guide microstructure includes a rectangular groove, an elliptical groove, a triangular groove, a trapezoidal groove, or a rhombic groove, and the length of the groove type ranges from 20 to 200 microns, the width ranges from 5 to 20 microns, and the depth ranges from 3 to 10 microns; the included angle between the light-incident surface of the light guide microstructure and the reflecting surface of the second light guide layer ranges from 30 to 55 degrees.

[0086] The material of the second isolation layer 203' includes one or more of silver paste and titanium white powder; the thickness of the second isolation layer 203' is 20% to 50% of the depth of the light guide microstructure on the second light guide layer 202'; and the thickness of the second isolation layer 203' is 4 to 5 microns. The refractive index of the second low-refraction material layer 204' is less than that of the second light guide layer 202', and the thickness of the second low-refraction material layer 204' is 2 to 3 microns.

[0087] Compared with the prior art, the technical scheme has the following beneficial effects:

[0088] 1. The second isolation layer is arranged on the outermost light guide sheet layer, which protects the morphology of the light guide microstructure on the second light guide layer, so that the patterned flexible light guide decorative device can be combined with other materials, and the thickness of the second isolation layer is 20% to 50% of the depth of the light guide microstructure on the second light guide layer; if the thickness of the second isolation layer is too large and higher than 50% of the depth of the light guide microstructure on the second isolation layer, most of the light will be reflected into the human eye by the light guide microstructure close to the light source, and the light entering the light guide microstructure far from the light source will be greatly weakened, resulting in uneven brightness of the presented pattern. The technical scheme enables the light to continuously propagate to the light guide microstructure far from the light source, and the presented pattern has uniform brightness.

[0089] 2. The second low-refraction material layer is arranged to protect the second isolation layer, and since the refractive index of the second low-refraction material layer is less than that of the second light guide layer, the light emission can be reduced, which is more conducive to reflecting the light into the human eye and improving the utilization rate of light.

[0090] Each of the technical features of the above-described embodiments can be combined arbitrarily, and for the sake of brevity, each of the technical features in the above-described embodiments is not described for all possible combinations, however, as long as the combinations of the technical features do not contradict, it should be considered as the scope of the description.

[0091] The above-described embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as a limitation on the scope of the application patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the application patent should be subject to the appended claims.

Claims

1. A patterned flexible light guiding decorative device, characterized in that, The first substrate layer; the first light guide layer is arranged on one side of the first substrate layer, the first light guide layer includes at least one group of light guide microstructure groups, the light guide microstructure group includes a plurality of light guide microstructures, the light guide microstructures are arranged in a pattern, the light guide microstructure group guides the light of a specific direction, emits and presents a pattern; The micro-nano structure layer is arranged on the other side of the first substrate layer; The decorative coating is arranged on the side of the micro-nano structure layer away from the first substrate layer.

2. The patterned flexible light guide decorative device of claim 1, wherein, The micro-nano structure layer includes a plurality of convex structures, and the gap of the convex structure is filled with ink.

3. The patterned flexible light guide decorative device of claim 2, wherein, The shape of the convex structure is a cylinder or a multi-prism, the width of the convex structure ranges from 5μm to 80μm, the height of the convex structure ranges from 6μm to 8μm, and the height of the ink ranges from 2μm to 5μm; the ratio of the height of the ink to the height of the convex structure ranges from 1 / 3 to 2 / 3.

4. The patterned flexible light guide decorative device of claim 1, wherein, The micro-nano structure layer includes a plurality of micro-nano structures and a plating film layer arranged in a shape of the micro-nano structure.

5. The patterned flexible light guide decorative device of claim 4, wherein, The cross section of the micro-nano structure is a micron or nanometer structure in one or more of a rectangle, a triangle, a wave shape, a semicircle, and a step shape, the width of the micro-nano structure ranges from 300nm to 200μm, the height ranges from 50nm to 20μm, and the interval ranges from 0 to 198μm.

6. The patterned flexible light guide decorative device of claim 1, wherein, The decorative coating is a wood grain coating, a technology pattern coating, or a semi-transparent color coating, and the thickness of the decorative coating ranges from 3μm to 7μm.

7. The patterned flexible light guide decorative device of claim 1, wherein, A hardening layer is further included, which is arranged on the side of the decorative coating away from the substrate layer, and the thickness of the hardening layer ranges from 3μm to 4μm.

8. The patterned flexible light guide decorative device of claim 1, wherein: The light-accepting surface of the light guide microstructure is a trapezoidal plane, an arc surface, or a combination of a plane and an arc surface; the groove type of the light guide microstructure includes a rectangular groove, an elliptical groove, a triangular groove, a trapezoidal groove, or a rhombic groove, the length of the groove type ranges from 20μm to 200μm, the width ranges from 5μm to 20μm, and the depth ranges from 3μm to 10μm; the included angle between the light-accepting surface of the light guide microstructure and the reflecting surface of the first light guide layer ranges from 30° to 55°.

9. The patterned flexible light guide decorative device of claim 8, wherein, A first barrier layer is further included, which is located on the side of the first light guide layer away from the first substrate layer; The thickness of the first barrier layer is 20% to 50% of the depth of the light guide microstructure on the first light guide layer; The thickness of the first barrier layer ranges from 4μm to 5μm.

10. The patterned flexible light guide decorative device of claim 9, wherein, A first low-refraction material layer is further included, which is located on the side of the first barrier layer away from the first substrate layer, the refractive index of the first low-refraction material layer is less than that of the first light guide layer, and the thickness of the first low-refraction material layer ranges from 2μm to 3μm.

11. The patterned flexible light guide decorative device of any one of claims 1-8, wherein, At least one light guide sheet layer is further included, which includes a second substrate layer and a second light guide layer arranged on the second substrate layer, the light guide sheet layer is arranged on the first light guide layer, and the second substrate layer is adjacent to the first light guide layer.

12. The patterned flexible light guide decorative device of claim 11, wherein, The second light guide layer comprises at least one set of light guide microstructure groups, each light guide microstructure group comprises a plurality of light guide microstructures arranged in a pattern, and the light guide microstructure group guides, emits and presents a pattern for specific direction incident light; the light-incident surface of the light guide microstructure is a trapezoidal plane, or an arc surface, or a combination of a plane and an arc surface; the groove type of the light guide microstructure comprises a rectangular groove, or an elliptical groove, or a triangular groove, or a trapezoidal groove, or a rhombic groove, the length of the groove type ranges from 20 μm to 200 μm, the width ranges from 5 μm to 20 μm, and the depth ranges from 3 μm to 10 μm; the included angle between the light-incident surface of the light guide microstructure and the reflecting surface of the second light guide layer ranges from 30° to 55°.

13. The patterned flexible light guide decorative device of claim 12, wherein, Further comprising a second barrier layer, the second barrier layer is located on the side of the second light guide layer away from the second substrate layer; The thickness of the second barrier layer is 20% to 50% of the depth of the light guide microstructure on the second light guide layer; The thickness of the second barrier layer is 4 μm to 5 μm.

14. The patterned flexible light guide decorative device of claim 13, wherein, Further comprising a second low-refraction material layer, the second low-refraction material layer is located on the side of the second barrier layer away from the second substrate layer, the refractive index of the second low-refraction material layer is less than that of the second light guide layer, and the thickness of the second low-refraction material layer is 2 μm to 3 μm.

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