TWM567487U - Optical film with decoration effect and laminate structure thereof - Google Patents

Abstract

The present invention is a decorative optical film comprising a substrate and a structural layer, the structural layer being combined with the substrate, and the structural layer comprising a plurality of optical geometries by the substrate The nature of the light transmission and the plurality of optical geometric structures allow the light to be reflected and exhibit a special visual effect of the reflected light pattern, thereby providing a product having the reflective optical film in addition to the design effect of the appearance texture. High-intensity directional astigmatism reflection effect under illumination, can improve the visibility of the optical film in low light environment, effectively improve the existing decorative materials can only increase the aesthetics and texture of the product, and can not provide further products The user has other shortcomings of practical utility.

Description

Decorative optical film and its composite structure

The present invention relates to an optical film, and more particularly to an optical film having a decorative effect.

Existing decorative materials are more and more common in the case of products such as 3C products, electrical products, trunks and helmets. For example, existing decorative materials can be combined with a suitcase or a helmet. The surface, by virtue of the visual characteristics of the existing decorative material, produces a unique visual effect, and can present different patterns or colors on the surface of the product, thereby increasing the commercial quality and the effect of selling.

However, the existing decorative materials can only increase the aesthetics and texture of the product, have a single function, and fail to further provide other practical functions of the user of the product, for example, when walking in a dimly lit space, the user wears an existing decoration. The safety helmet of the material or the suitcase with the existing decorative materials is not only due to the dim light, but the visual effects such as the pattern and color of the existing decorative materials are difficult to be presented and are noticed by others. Therefore, other people also It is difficult to notice the user because of the attraction of the existing decorative materials, thereby creating the effect of ensuring user safety. In addition, although there are two kinds of reflective materials, including a granular triangular pyramid reflective film and a glass bead reflective film. , is added to the above products to increase night safety, but the production of granular triangular cone reflective film is difficult, resulting in difficult production and high cost, low product promotion and practicality; although the glass bead reflective film is easy to produce, but reflective Low degree of appearance, poor decorative appearance, low added value to the product and safety guarantee for users Good, therefore, the conventional decorative materials which may be improvement.

In order to solve the defects that the existing decorative materials can only increase the appearance and texture of the product, have a single function, and fail to further provide other practical functions of the user of the product, the present invention provides a reflective optical film having an optical structure with astigmatism reflection effect. Providing the variability of the appearance texture of the reflective optical film, in addition to the design effect of the appearance texture, the product provided with the reflective optical film can exhibit high-intensity directional astigmatism reflection effect under illumination, and improve the lack of light In the environment, the visibility of the reflective optical film is provided, and the user is provided with a layer of safety in a dim environment. The detailed structure of the reflective optical film is further described below.

The present invention provides a reflective optical film having a decorative effect, comprising: a substrate transparent to the substrate and including an outer surface and an inner surface; and a structural layer disposed on the substrate On one side of the inner surface, the structural layer includes a plurality of optical geometries disposed on one side of the inner surface of the substrate.

The reflective optical film having a decorative effect, wherein the reflective optical film having a decorative effect further comprises a functional layer, the functional layer is combined with the substrate, and is disposed on the inner surface or the inner surface, and if When the functional layer is disposed on the inner surface, it is interposed between the substrate and the structural layer, and the functional layer is a photochromic material, a thermochromic material, a fluorescent material or a mixture of the materials. A toning layer, or a patterned printed layer of pigment.

Further, the reflective optical film having a decorative effect, wherein the reflective optical film having a decorative effect further comprises a reflective layer, the reflective layer being combined with the structural layer, and disposed on the plurality of optical geometric structures away from the substrate On the surface, the reflective layer is a metal plating layer composed of gold, silver, copper, aluminum, nickel or an alloy thereof, and the reflective layer has a thickness of 5 nm to 500 nm.

Further, in the above reflective optical film having a decorative effect, the cross-sectional shape of the plurality of optical geometric structures may be a triangle, an arc, a polygon, or the like.

Still further, the reflective optical film having a decorative effect, wherein each optical geometric structure may be distributed on a side of an inner surface of the substrate along a straight line or a curved line, and the plurality of optical geometric structures are parallel to each other. And the distance between two adjacent optical geometries may be equally spaced or have different sizes.

Still further, the above-mentioned reflective optical film having a decorative effect, wherein the surface of each optical geometric structure is a smooth surface, a rough surface having a surface roughness greater than 1 micrometer or a surface having a diffraction pattern, wherein a cross section of each optical geometric structure In the case of a triangle, each optical geometry has two bevels, and the intersection of the two bevels forms the apex angle of the triangular section of the optical geometry, which may be from 20 to 160 degrees.

Preferably, the reflective optical film having a decorative effect, wherein the plurality of optical geometric structures are a light-transmitting polymer material, a photochromic material, a thermochromic material, a fluorescent material or a mixture of the materials; Optical geometry.

The present invention further provides a multi-layer structure having a reflective optical film, comprising: a reflective optical film as described above; a protective film attached to one side of the substrate of the reflective optical film, and the protection The film is a colorless or colored light transmissive film; and a substrate layer bonded to one side of the structural layer of the reflective optical film.

According to the above technical features, the novel optical transmission property of the substrate and the plurality of optical geometric structures of the structural layer enable the light to be reflected and exhibit a special visual effect of the reflected light pattern due to the interference phenomenon, thereby presenting the appearance. In addition to the design effect of the texture, the product provided with the reflective optical film can exhibit high-intensity directional astigmatism reflection under illumination, improve the visibility of the reflective optical film in a low-light environment, and provide use in a dim environment. One layer of security; further, the user can change the pattern of reflected light patterns by changing the distribution and pattern of the plurality of optical geometries, and further provide additional structures on each optical geometry to provide astigmatism The reflection effect or the diffracted light interference effect increases the illumination range of the reflected light pattern and the soft visual effect; preferably, the user can further increase the pattern and color change of the light pattern through the functional layer and the reflective layer. And the reflectivity of light, therefore, the present invention effectively improves the existing decorative materials can only increase the aesthetics and quality of the goods. Single function, but failed to provide further product efficacy practical disadvantages of other users, and thereby provide a reflective optical film having a multi-layer structure of a decorative effect.

In order to understand the technical features and practical effects of the present invention in detail, and in accordance with the contents of the specification, the detailed description of the preferred embodiment is further illustrated as follows:

The present invention is a reflective optical film having a decorative effect. The first preferred embodiment is as shown in FIGS. 1 and 2, and includes a substrate 10 and a structural layer 20, wherein:

The substrate 10 can be a light transmissive polymer material such as polyethylene terephthalate (PET), polycarbonate (PC), polyvinyl chloride (PVC), polymethacrylic acid. a light transmissive layered structure made of methyl ester (acrylic; PMMA) or a composite material of the materials, the substrate 10 including an outer surface 11 and an inner surface 12, and the outer surface 11 and The inner surfaces 12 are respectively disposed on both sides of the substrate 10.

The structural layer 20 is formed integrally with the substrate 10 or embossed by an ultraviolet (UV) curing material, and the structural layer 20 can be made of a light-transmitting polymer material, a photochromic material, and a thermochromic material. a material, a fluorescent material, or a mixture of the materials, and the structural layer 20 includes a plurality of optical geometries 21 that are linearly and parallel to each other and protrude from the inner surface 12, and each The optical geometry 21 has a triangular cross section. Further, each optical geometry 21 has two inclined faces 211, each of which has a smooth surface, and the two inclined faces 211 are joined to form a triangular bevel of the optical geometry 21. The apex angle may be from 20 degrees to 160 degrees. In the preferred embodiment, each optical geometry 21 extends along the length of the substrate 10 to form a straight strip, and as shown in FIG. A section having an isosceles right triangle with a vertex angle of 90 degrees.

Referring to FIG. 1 and FIG. 2, by the above technical feature, when a light source is irradiated on the outer surface 11 of the substrate 10, and the light passes through the substrate 10 and the plurality of optical geometries 21, Due to the interference phenomenon of light, the reflected light will exhibit a reflected light pattern perpendicular to the plurality of optical geometries 21 along the width direction of the substrate 10.

Referring to the second preferred embodiment of the present invention, please refer to FIG. 3, which differs from the first preferred embodiment in that the decorative optical film further includes a functional layer 30 and a reflective layer 40. The functional layer 30 is disposed between the substrate 10 and the structural layer 20, and the functional layer 30 can be a fluorescent material, a photochromic material, a thermochromic material, a pigment or the like coated on the inner surface 12. a toning layer or a pattern printing layer formed by a mixture of materials to provide a variety of visual effects after the light is reflected; the reflective layer 40 is disposed on a side of the structural layer 20 away from the substrate 10. The reflective layer 40 is a metal coating layer having a thickness of 5 nanometers (nm) to 500 nanometers, and the material thereof may be gold, silver, copper, aluminum, nickel or alloys thereof, etc., by providing the reflective layer. 40 can greatly increase the reflectivity of the decorative reflective optical film and improve the brightness of the reflected light.

Further, as shown in FIG. 3A and FIG. 3B, the cross section of each optical geometric structure 21 of the structural layer 20 may also be an arc shape or a non-triangular shape such as a polygon.

A third preferred embodiment of the present invention is shown in FIG. 4, which differs from the second preferred embodiment in that the functional layer 30 is disposed on a side of the substrate 10 away from the structural layer 20, that is, On the surface 11, the functional layer 30 can be a tinted layer or a patterned printed layer composed of a fluorescent material, a photochromic material, a thermochromic material, a pigment or a mixture of the materials coated on the outer surface 11. In order to provide a variety of visual effects after the light reflection.

Referring to the fourth preferred embodiment of the present invention, please refer to FIG. 5, which differs from the first preferred embodiment in that each optical geometric layer 21 has a width W and an adjacent optical geometry. 21 spacing setting, by changing the width W, different reflected light patterns can be achieved, and the plurality of optical geometric structures 21 can also have different width W spacing, and exhibit a sparse distribution.

Further, the plurality of optical geometries 21 of the structural layer 20 are not limited to a straight strip-like distribution pattern, and may be curved or concentric or line-like random interlaced and other distribution forms, thereby changing the reflected light pattern. kind.

Referring to FIG. 6 and FIG. 7, the fifth preferred embodiment of the present invention is different from the first preferred embodiment in that each optical geometric structure 21A is curved and parallel to the inner surface 12. Therefore, when a light source is irradiated on the outer surface 11, a reflected light pattern perpendicular to the curve of the plurality of optical geometric structures 21A is exhibited due to the interference phenomenon; as shown in FIG. 7, the optical geometric structure 21A has a cross section of An isosceles triangle, and the apex angle of the isosceles triangle is not a right angle. Preferably, each optical geometry 21A further forms an additional structure 212A on the two slopes 211A, so that each optical geometry 21A has a roughness. The surface of the additional structure 212A may be a regular or an irregularly distributed arc-shaped dot structure, a polygonal dot structure, a strip grating structure or a diffraction pattern structure as shown in FIG. The rectangular structure of the pattern-like structure provides a grating effect for imparting a diffractive optical effect to the light pattern, the additional structure 212A having each optical geometry 21A having a surface ranging from 1 micrometer to 200 micrometers (micrometer) Roughness, in the present preferred embodiment, the additional structure 212A each optical geometry 21A having greater than 3 micrometers (μm; micrometer) surface roughness.

As shown in FIG. 7, the additional structure 212A on the surface of each optical geometry 21A provides an optical effect of astigmatism or diffraction after the light is incident, thereby reducing the effect of concentrated light concentration. Therefore, the reflected light pattern is compared with the first preferred embodiment. The ratio is distributed over a larger range and presents a softer and rainbow-like visual effect.

Referring to FIG. 9 , the sixth preferred embodiment of the present invention differs from the fifth preferred embodiment in that the decorative optical film further includes a functional layer 30 and a reflective layer 40 . The functional layer 30 is disposed between the substrate 10 and the structural layer 20A. The functional layer 30 can be a fluorescent material, a photochromic material, a thermochromic material, a pigment or the materials coated on the inner surface 12. a coating formed by the mixture to provide a versatile visual effect after the light is reflected; the reflective layer 40 is disposed on a side of the structural layer 20A away from the substrate 10, and the reflective layer 40 is a thickness 10 nanometer (nm; nanometer) to 500 nanometer metal coating layer, the material of which may be gold, silver, copper, aluminum, nickel or alloy thereof, by providing the reflective layer 40 can greatly increase the decorative reflection The reflectivity of the optical film increases the brightness of the reflected light.

When the reflective optical film having the decorative effect provided by the sixth preferred embodiment of the present invention is used, the reflective optical film having the decorative effect can be bonded to a substrate layer 60, and the substrate layer 60 can be a Polycarbonate (PC), Acrylonitrile Butadiene Styrene (ABS resin), Polypropylene (PP), Thermoplastic Polyurethane (TPU), Polystyrene (Polycarbonate; PC) Polyvinyl chloride; PVC), carbon fiber or glass fiber, etc., or a layered structure made of a cloth, a nylon cloth or a polyester fiber cloth, such that the structural layer 20A is located at the base Between the material 10 and the substrate layer 60, a protective film 70 is adhered to the outer surface 11 of the substrate 10. The protective film 70 can be a colorless or colored transparent film material. The material layer 60 has a visual and aesthetic visual effect, and can exhibit different visual effects through different aspects of the structural layer 20A and the functional layer 30.

With the above technical features, the present invention transmits light through the substrate 10 and the plurality of optical geometries 21, 21A of the structural layer 20, 20A, so that the light is reflected and exhibits a special visual reflection due to the interference phenomenon. In addition to the design effect of presenting the appearance texture, the article providing the reflective optical film can exhibit a high-intensity directional astigmatism reflection effect under illumination, and the reflective optical film can be improved in a low-light environment. Visibility, while providing users with one layer of security in dimly lit environments.

Further, the user can change the reflection light pattern by changing the distribution and the pattern of the plurality of optical geometries 21, 21A, such as adjacent continuous distribution, intermittent intermittent distribution, and spaced apart dense distribution. Or the shape of the optical geometry 21, 21A such as a straight line or a curved shape; further, the optical structure 21A may further be provided with an additional structure 212A to provide a reflection effect of astigmatism or a dispersion effect of the diffracted light, and to increase the reflection light pattern. The illumination range and the soft visual effect and the light effect variability; preferably, the user can further increase the pattern and color change of the light pattern and the reflectance of the light through the functional layer 30 and the reflective layer 40.

Therefore, the present invention effectively improves the existing decorative materials only by increasing the aesthetics and texture of the product, has a single function, and fails to further provide the disadvantages of other practical functions of the user of the product, thereby providing a reflective optical film.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any one of ordinary skill in the art may use the present invention without departing from the scope of the present invention. Equivalent embodiments of the various changes or modifications made by the disclosed technical content, and without departing from the technical solutions of the present invention, are still within the scope of the technical solutions of the present invention.

10‧‧‧Substrate
11‧‧‧ outer surface
12‧‧‧ inner surface
20, 20A‧‧‧ structural layer
21, 21A‧‧‧Optical geometry
211, 211A‧‧‧ bevel
212A‧‧‧Additional structure
30‧‧‧ functional layer
40‧‧‧reflective layer
60‧‧‧Substrate layer
70‧‧‧Protective film

1 is a schematic perspective view of a first preferred embodiment of the present invention. Figure 2 is a side elevational view of the first preferred embodiment of the present invention. Figure 3 is a side elevational view of a first aspect of the second preferred embodiment of the present invention. Figure 3A is a side elevational view of a second aspect of the second preferred embodiment of the present invention. Figure 3B is a side elevational view of a third aspect of the second preferred embodiment of the present invention. Figure 4 is a side elevational view of a third preferred embodiment of the present invention. Figure 5 is a side elevational view of a fourth preferred embodiment of the present invention. Fig. 6 is a perspective view showing the operation of the fifth preferred embodiment of the present invention. Figure 7 is a side elevational view of the fifth preferred embodiment of the present invention. Figure 8 is a schematic illustration of another aspect of the additional structure of the fifth preferred embodiment of the present invention. Figure 9 is a schematic view showing the state of use of the sixth preferred embodiment of the present invention.

Claims (10)

An optical film having a decorative effect, comprising: a substrate transparent to the substrate and including an outer surface and an inner surface; and a structural layer disposed on the inner surface of the substrate On the side, the structural layer includes a plurality of optical geometries disposed on one side of the inner surface of the substrate. The decorative optical film of claim 1, wherein the decorative optical film further comprises a functional layer, the functional layer is combined with the substrate, and is disposed on the inner surface or the inner surface. And if the functional layer is disposed on the inner surface, between the substrate and the structural layer, the functional layer is a photochromic material, a thermochromic material, a fluorescent material or a mixture of the materials A tonal layer is formed, or a patterned printed layer of pigment. The decorative optical film of claim 1, wherein the decorative optical film further comprises a reflective layer, the reflective layer is combined with the structural layer, and the plurality of optical geometric structures are disposed away from the On the surface of the substrate, the reflective layer is a metal plating layer composed of gold, silver, copper, aluminum, nickel or an alloy thereof, and the reflective layer has a thickness of 5 nm to 500 nm. The decorative optical film of claim 2, wherein the decorative optical film further comprises a reflective layer, the reflective layer is combined with the structural layer, and the plurality of optical geometric structures are disposed away from the base On the surface of the material, the reflective layer is a metal plating layer composed of gold, silver, copper, aluminum, nickel or an alloy thereof, and the reflective layer has a thickness of 5 nm to 500 nm. The decorative optical film of any one of claims 1 to 4, wherein the plurality of optical geometric structures have a cross-sectional shape of a triangle, an arc, a polygon, or the like. The decorative optical film of claim 5, wherein each of the optical geometries may be distributed along a straight line or a curved line on a side of the inner surface of the substrate, and the plurality of optical geometries are mutually Parallel, and the distance between two adjacent optical geometries may be equally spaced or have different sizes. The decorative optical film of claim 6, wherein the surface of each optical geometry is a smooth surface, a rough surface having a surface roughness greater than 1 micron, or a surface having a diffraction pattern, wherein When the optical geometry has a triangular cross section, each optical geometry has two slopes, and the intersection of the two slopes forms a vertex angle of the triangular section of the optical geometry, and the vertex angle can be 20 degrees to 160 degrees. The decorative optical film according to claim 7, wherein the plurality of optical geometric structures are a light-transmitting polymer material, a photochromic material, a thermochromic material, a fluorescent material or a mixture of the materials. Optical geometry. A multi-layer structure having an optical film, comprising: an optical film having a decorative effect as claimed in claim 8; a protective film attached to one side of the substrate of the optical film, and The protective film is a colorless or colored light transmissive film; and a substrate layer bonded to one side of the structural layer of the optical film. A multi-layer structure having an optical film, comprising: an optical film having a decorative effect as claimed in claim 1; a protective film attached to one side of the substrate of the optical film, and The protective film is a colorless or colored light transmissive film; and a substrate layer bonded to one side of the structural layer of the optical film.