CN112462456B - Optical film, manufacturing method and electronic equipment cover plate carrying same - Google Patents
Optical film, manufacturing method and electronic equipment cover plate carrying same Download PDFInfo
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- CN112462456B CN112462456B CN202011366243.9A CN202011366243A CN112462456B CN 112462456 B CN112462456 B CN 112462456B CN 202011366243 A CN202011366243 A CN 202011366243A CN 112462456 B CN112462456 B CN 112462456B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
- G02B5/045—Prism arrays
Abstract
The application provides an optical film, a manufacturing method and an electronic equipment cover plate with the optical film. The optical film comprises: the micro-nano structure layer is configured on one side of the substrate, and comprises: the triangular prism that the setting is arranged to the plural number, the triangular prism extends along straight line or curve, and to at least part the cylinder of triangular prism is along the cutting of presetting length or along the cutting of thickness direction and form cutting part, cutting part is along the direction of extension interval variation setting of triangular prism, and/or, cutting part is in parameter variation setting between the triangular prism, or, the micro-nano structure layer includes: a plurality of rectangular pyramids arranged in an array, at least a portion of the rectangular pyramids being arranged such that a top thereof includes a curved surface. Various transition of light and shadow from real to virtual can be realized on the same optical film.
Description
Technical Field
The application relates to the technical field of films, in particular to an optical film with a light and shadow effect, a manufacturing method and an electronic equipment cover plate carrying the same.
Background
The traditional optical film with the light and shadow effect has the visual effect that the whole surface is transparent or the whole surface is fog in general, and the optical film cannot be compatible with the light and shadow effects which exist on the same film at the same time and can be mutually and naturally transited. The conventional optical film with fog-sensitive shadow effect is structurally provided with a micro structure which is configured into one or a combination of a plurality of grids, gradient structures, lattices, line segments or silk-drawing lines. The manufacturing process of the optical film is more complex, and the optical film usually has macroscopic impurities.
Thus, there is a need for a new optical film.
Disclosure of Invention
In order to solve the above-mentioned drawbacks, an object of the present application is to: the optical film with the atomization effect has the advantages that the two light and shadow effects which can be mutually and naturally transited can be simultaneously existing on the optical film, and various transition of the light and shadow from real to virtual can be easily realized.
In order to achieve the above purpose, the application adopts the following technical scheme,
an optical film, comprising: the micro-nano structure layer is configured on one side of the substrate, and comprises:
the triangular prisms are arranged in a plurality, extend along a straight line or a curve, and cut parts formed by cutting at least part of the triangular prism columns along the preset length in the arrangement direction or along the thickness direction, wherein the cut parts are arranged at intervals along the extending direction of the triangular prisms, and/or the cut parts are arranged at parameter changes among the triangular prisms,
or, the micro-nano structure layer comprises: a plurality of rectangular pyramids arranged in an array, at least a portion of the rectangular pyramids being arranged such that a top thereof includes a curved surface.
In one embodiment, the cutting portion includes: the first cutting parts are formed by cutting the columns of the triangular prism in the arrangement direction, and the first cutting parts are arranged at intervals along the extending direction of the triangular prism.
In one embodiment, the cutting portion includes: and the second cutting part is formed by cutting part of the cylinders of at least part of the triangular prisms along the thickness direction, and the second cutting part is arranged in the parameter variation among the triangular prisms.
In one embodiment, the top of the second cutting portion has a flat or concave surface.
In one embodiment, the rectangular pyramid comprises a shaped rectangular pyramid comprising: a base and a vertebral body arranged on the base,
two opposite surfaces of the cone are triangular, and four sides of the base are regular or irregular quadrangles.
In one embodiment, the triangular prism has a triangular cross section, and the heights of two adjacent triangular prisms are equal or unequal.
In one embodiment, the optical film includes a carrier layer having a transparent imprinting layer formed from a transparent imprinting layer disposed thereon.
The embodiment of the application provides a manufacturing method of an optical film, which is characterized by comprising the following steps:
forming a texture layer with a triangular prism structure,
cutting a plurality of cylinders with the same or different lengths in the arrangement direction of at least part of the triangular prisms based on the jig to respectively form first cutting parts, and/or cutting a plurality of cylinder parts with certain lengths in the arrangement direction of at least part of the triangular prisms based on the jig to respectively form second cutting parts comprising special-shaped triangular prisms,
or alternatively, the first and second heat exchangers may be,
when the jig is used for cutting the cylinder of the triangular prism, the cutting interval is controlled so as to form textures with the rectangular pyramid, and the depth of the jig is controlled during cutting so that part of the rectangular pyramid is cut into the special-shaped rectangular pyramid.
The embodiment of the application provides a manufacturing method of an optical film, which is characterized in that,
manufacturing a die, engraving the die with a structure matched with the triangular prism and a pattern matched with the first cutting part and/or the second cutting part,
and (3) coating imprinting glue, imprinting, solidifying and demolding by using the mold.
The embodiment of the application provides an electronic equipment cover plate, which is provided with the optical film.
Advantageous effects
Compared with the scheme in the prior art, the film with the atomization effect provided by the application has the advantages that the film with the atomization effect has the two light and shadow effects which can be mutually and naturally transited, various transition of the light and shadow from real to virtual can be realized, the light and shadow is fine, poor appearance such as miscellaneous points can not occur, and the microstructure is much larger than that of the traditional film.
Drawings
For a clearer description of embodiments of the present description or of solutions in the prior art, the drawings that are required to be used in the description of the embodiments or of the prior art will be briefly described, it being apparent that the drawings in the description below are only some of the embodiments described in the description, from which, without inventive faculty, other drawings can also be obtained for a person skilled in the art:
FIG. 1 is a schematic view of an optical film according to an embodiment of the present application;
FIGS. 2-6 are schematic diagrams of transparent imprinting glue layers according to embodiments of the present application;
fig. 8 is a schematic structural view of the shaped rectangular pyramid of fig. 7.
Detailed Description
In order to make the technical solution proposed by the present application better understood by those skilled in the art, the technical solution in the embodiments of the present specification will be clearly and completely described in the following with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only some embodiments, not all embodiments in the present specification. All other embodiments, which can be made by one or more persons of ordinary skill in the art without undue burden from the present disclosure, are intended to be within the scope of the present application.
The present application provides an optical film comprising: the substrate, micro-nano structure layer disposes in substrate one side, micro-nano structure layer includes: the triangular prism that the plural arrangement set up, triangular prism extend along straight line or curve, and to the cutting part that the cylinder of at least part triangular prism was formed along the cutting of the length of predetermineeing in the direction of arranging or along cutting of thickness direction, the cutting part is along the setting of the change of the extending direction interval of triangular prism to/or, the parameter variation setting of cutting part between the triangular prism, perhaps, the micro-nano structure layer includes: the plurality of rectangular pyramids are arranged in an array, at least part of the rectangular pyramids being arranged such that the tops thereof comprise curved surfaces. Thus, the optical film can realize transparent light shadows with different bases visually.
The optical film according to the present application is described in detail below.
FIG. 1 is a schematic view of an optical film 10 according to an embodiment of the present application, the optical film 10 comprising: the transparent imprinting adhesive layer 11 is configured on one side of the substrate 12, and the transparent imprinting adhesive layer 11 has a micro-texture structure, wherein the micro-texture structure comprises one or a combination of triangular prisms, rectangular pyramids, special triangular prisms or special rectangular pyramids (not shown), and is formed by corresponding straight lines or curved lines. In this embodiment, the substrate is made of glass or plastic or is a flexible substrate.
The transparent imprinting glue layer according to the present application will be described with reference to fig. 2-6.
Fig. 2 is a schematic diagram of a transparent imprint adhesive layer according to an embodiment of the application, where the micro-texture structure of the transparent imprint adhesive layer 101 includes triangular prisms 102 with triangular cross sections 102a, and various basic transparent shadows are realized by adjusting the shapes of the triangular cross sections and the arrangement paths of the triangular prisms. Specifically, the first cutting portions are formed by cutting the whole section of the column body of the part of triangular prism with the preset length (the same length or different lengths in the arrangement direction), and the first cutting portions are arranged at intervals along the extending direction of the triangular prism. For a certain cutting area, the first cutting portions are combined to form a pattern, such as a triangular shape of the combined pattern shown in fig. 2, and the patterns are arranged at intervals in the arrangement direction of the triangular prisms (i.e. the intervals may be the same or different, or the patterns are arranged in a gradient manner in the arrangement direction of the triangular prisms). The transparency of the area where the pattern is located is different from that of other areas, so that the optical film can realize transparent light shadows with different bases visually. In this embodiment, three sides (e.g., one side 102 a) of the triangular prism are regular or irregular. In an embodiment, lengths (length L in the arrangement direction, see fig. 3) of two adjacent triangular prisms 202 arranged on a curve (as shown in fig. 4) may be equal or unequal to achieve transparent shadows of various bases.
In an embodiment, for a certain cutting area, the plurality of first cutting portions are combined to form a pattern, such as a stripe shape (square shape) of the pattern shown in fig. 4, the intervals t1 between the patterns may be the same or different (see fig. 5), or the patterns may be arranged in a gradient manner/inclined to a certain direction (I direction in fig. 6) in the arrangement direction of the triangular prisms. The transparency of the area where the pattern is located is different from that of other areas, so that the optical film can realize various basic transparent shadows on the whole vision, and defects such as miscellaneous points and the like can not appear on the vision. In this embodiment, the triangular prisms are arranged intermittently in a curved shape in one arrangement direction (as shown in fig. 4 and 5), and in other embodiments, the triangular prisms are arranged continuously in a curved shape in the arrangement direction.
As a modification of the embodiment of fig. 2, fig. 6 is a schematic diagram showing the micro-texture structure of the transparent imprinting glue layer 301 according to an embodiment of the present application, where the micro-texture structure includes: triangular prism 302, triangular prism 304, and shaped triangular prism 303, and the shaped triangular prism 303 has a flat portion 303a (the flat portion may have a constant curvature) on the top. The triangular prisms 302, 304 and 303 are arranged according to a predetermined pattern (e.g., according to a straight line or a curved line path), wherein the triangular prisms have triangular cross sections (may be any triangle, such as an equilateral triangle, an isosceles triangle, etc.), three sides of the triangular prisms are regular or irregular quadrilaterals, and the heights of two adjacent triangular prisms arranged on a straight line or a curved line may be equal or unequal, and a special triangular prism with a missing top exists between two adjacent triangular prisms arranged on a straight line or a curved line. The cross section of the special triangular prism can be any quadrilateral, and four sides of the special triangular prism are regular quadrilaterals or irregular quadrilaterals. And setting the parameter variation of the adjacent special triangular prisms. Such as: the height of the special triangular prism gradually decreases/gradually increases/periodically changes from one side to the other side. In the present embodiment, triangular prisms 302 are arranged continuously, triangular prisms 304 are arranged intermittently,
when the triangular prism is manufactured, the triangular prisms are arranged in advance, the cylinders of the triangular prisms are partially cut (in the preset direction in the thickness direction) to form second cutting parts, the second cutting parts are arranged in the parameter change mode among the partial triangular prisms, the transparency of the cut-out remaining parts (the second cutting parts) is different from that of the non-cut triangular prisms, the atomization effect is visually displayed, and the atomization degree of the whole atomization effect is gradually deepened from top to bottom. Or the top (as shown in fig. 6) of the triangular prism is the same in the bottom surface in fig. 6, the height H1 (also called thickness) of the triangular prism with different cutting sizes in the thickness direction is different (namely, the size of the top flat part 303a of each row of the triangular prism can be adjusted), so that the atomization effect with different degrees can be increased on the basis of transparent light shadow, various transition from real to virtual of the light shadow can be realized on the same optical film, and the visual effect can be improved. In this embodiment, the intervals t between two adjacent triangular prisms 304 may be the same or different. The height H1 of the shaped triangular prism gradually decreases/gradually increases/periodically changes from one side to the other side in the I direction. In other embodiments, the high H1 period of the shaped triangular prism varies or varies randomly, thus increasing the atomization effect to different degrees on the basis of the transmitted light shadow. In this embodiment, the lengths of the shaped triangular prisms in the direction of the straight or curved path may be the same or different.
In an embodiment, the transparent imprint adhesive layer is configured with the first cutting portion and the second cutting portion at the same time.
As shown in fig. 7, the micro-texture structure of the transparent imprinting adhesive layer 401 according to an embodiment of the present application includes four pyramids 403 and a special-shaped four pyramids 402 arranged in a row, which are arranged in a straight line or a curved line, wherein the four triangular sections of the four pyramids 403 may be arbitrary triangles, and the bottom surface of the four pyramids 403 may be regular or irregular. In the present embodiment, the shaped rectangular pyramid 402 (see fig. 8) has: a base 4021 of a certain height H; four sides 4022 of the base 4021 are regular or irregular quadrangles; two opposite faces of the cone of the special-shaped rectangular pyramid above the base are triangular 4022, and the other two opposite faces are trapezoid 4023. Thus, various basic transparent shadows can be realized by adjusting the shape and the arrangement path of the rectangular pyramid; the atomization effect of different degrees can be increased on the basis of transparent light shadow by adjusting the height H of the special-shaped rectangular pyramid base 4021 and the shapes of four side surfaces, so that various transition of the light shadow from real to virtual can be realized on the same optical film.
The application provides a manufacturing method of an optical film, which comprises the following steps:
a texture layer with a triangular prism structure is manufactured,
the cutting of preset patterns is carried out on the triangular prism based on the jig, and depth change/depth period change is carried out when the triangular prism is cut, so that the lower side of the cut-off part presents an atomization effect, and the atomization effect is gradually deepened from top to bottom.
The preset direction further comprises the step of cutting along the direction perpendicular to the triangular prism based on the jig, wherein the depth is changed when cutting (such as cutting from one side to the other side gradually becomes shallow, so that the shallow side forms a special-shaped rectangular pyramid). The light and shadow atomization degree of the texture layer can be controlled through the design, and then various transition of light and shadow from real to virtual can be easily realized by the optical film with the texture. The manufacturing process is simple, and the shape of the triangular prism is adjusted, namely the whole or partial cutting is carried out on the column body of the triangular prism, so that the cutting area and the non-cutting area have different transparency, and the optical film has transparent light shadows with different transparency visually. When the column body part of the triangular prism is cut, the size of the missing part at the top of each row of triangular prism (the height of the irregular triangular prism after cutting) can be controlled to increase atomization effects of different degrees on the basis of transparent light shadow, so that various transition from real to virtual of the light shadow is realized on the same optical film, and poor appearance such as mixed points can not occur.
In an embodiment, the preset direction further includes cutting the triangular prism based on a jig at an angle to an arrangement direction of the triangular prism.
The application provides a manufacturing method of an optical film with quadrangular pyramid textures, which comprises the following steps:
the texture layer with triangular prism is manufactured, the texture layer with the triangular prism is cut out based on a jig and the interval of the texture layer is controlled, the depth of the jig is controlled (the depth of the cut is inconsistent) while the cutting is performed, part of the rectangular prism is provided with a base and some side faces are trapezoid (please refer to fig. 7, the transverse direction (x direction) is the triangular prism priming, the vertical direction (vertical to the x direction) is the cutting direction, the cutting depth gradually becomes shallow from bottom to top, so the top of the upper rectangular prism is not a sharp point but a line (such as a curve), the jig is a cutter, a laser emitting device, a chemical agent spraying device and the like, various transition of the light shadow from real to virtual can be realized on the same piece of optical film, and appearance defects such as miscellaneous points cannot occur.
In one embodiment, the micro-texture of the transparent imprinting layer comprises four pyramids and/or shaped rectangular pyramids.
The application provides an electronic equipment cover plate, which is provided with the optical film. By means of the design, the visual effect of the cover plate is improved.
In the design of the transparent imprinting adhesive layer, the micro-texture structure is formed by arranging corresponding straight lines or curves, wherein the micro-texture structure comprises triangular columns and/or special triangular columns. When the triangular prism is configured, the triangular prism column body is integrally cut in a certain length in the arrangement direction, so that the cut area and the non-cut area have different transparency, and the area with the cut area visually presents fog feeling. Or the column body part of the triangular prism with a certain length L along the arrangement direction is cut, the size of the missing part at the top of the triangular prism (the height of the irregular triangular prism after cutting) is controlled, so that the transparency of the triangular prism with different irregular shapes in the cutting area is different, the transparency of the triangular prism with different non-cutting areas is also different, the atomization effect with different degrees can be increased on the basis of transparent light shadow in vision, and the appearance defects such as miscellaneous points and the like can not occur.
In the design of the transparent imprinting adhesive layer, the micro-texture structure is one or a combination of micro-texture structures including rectangular pyramid and/or special-shaped rectangular pyramid, and is formed by corresponding straight lines or curves. For example, when the micro-texture structure comprises a (special-shaped) rectangular pyramid, various basic transparent shadows can be realized by adjusting the shape and the arrangement path of the rectangular pyramid; the atomization effect of different degrees can be increased on the basis of transparent light shadow by adjusting the height of the special-shaped rectangular pyramid base and the shapes of the four sides, so that various transition of the light shadow from real to virtual is realized on the same optical film, and appearance flaws such as miscellaneous points can not occur.
In the design of the transparent imprinting glue layer, the transparent imprinting glue layer comprises a bearing layer, and the transparent imprinting glue layer formed by the transparent imprinting glue is arranged on the bearing layer.
In the design of the ink layer, it is disposed on a transparent imprinting glue layer or on a substrate. Preferably, the photochromic material is arranged on the ink layer, so that the optical film carrying the photochromic material is overlapped and discolored at the same time of various transition of the light and shadow from real to virtual, and the visual effect is further improved.
It should be noted that in other embodiments, only one or more of the features of the "transparent embossed adhesive layer", "ink layer", "carrier layer", etc. may be included for the same optical film.
That is, the above features may be combined in any arrangement and used for improvement of an optical film.
The above embodiments are provided to illustrate the technical concept and features of the present application, and are intended to enable those skilled in the art to understand the present application and implement the same according to the present application, not to limit the scope of the present application. All equivalent changes or modifications made by the spirit of the application are intended to be covered by the scope of the application.
Claims (10)
1. An optical film, comprising: the substrate is provided with a plurality of holes,
the micro-nano structure layer, the micro-nano structure layer disposes in base one side, the micro-nano structure layer includes:
the triangular prism that the setting is arranged to the plural number, the triangular prism extends along straight line or curve, and to at least part the cylinder of triangular prism is along the cutting of presetting length or along the cutting of thickness direction and form cutting part in the direction of arranging, cutting part is along the direction of extension interval variation setting of triangular prism, and/or, cutting part is in parameter variation setting between the triangular prism, cutting part includes: the first cutting parts are formed by cutting the columns of the triangular prism along the arrangement direction, the first cutting parts are combined to form patterns in a certain cutting area, the transparency of the areas where the patterns are located is different from that of other areas, the cutting of the preset patterns is performed on the triangular prism based on the jig, the depth change/depth period change is performed while the cutting is performed, the lower side of the cut part shows an atomization effect, and the atomization effect is gradually deepened;
or alternatively, the first and second heat exchangers may be,
the micro-nano structure layer comprises: a plurality of rectangular pyramids arranged in an array, at least part of the rectangular pyramids being arranged such that the tops thereof comprise curved surfaces; the rectangular pyramid includes a shaped rectangular pyramid comprising: a base and a vertebral body arranged on the base; two opposite surfaces of the cone body are triangular, and the other two opposite surfaces are trapezoidal; when in cutting, the atomization effect of different degrees is increased on the basis of transparent light shadow by adjusting the height of the base of the special-shaped rectangular pyramid, the shape of the triangle and the shape of the trapezoid.
2. An optical film as recited in claim 1, wherein the first cut portions are disposed at intervals along the direction of extension of the triangular prism.
3. The optical film according to claim 1 or 2, wherein the cutting portion comprises: and the second cutting part is formed by cutting part of the cylinders of at least part of the triangular prisms along the thickness direction, and the second cutting part is arranged in the parameter variation among the triangular prisms.
4. An optical film as recited in claim 3, wherein a top portion of the second cut portion has a flat portion or a concave surface.
5. The optical film of claim 1, wherein the rectangular pyramid comprises a shaped rectangular pyramid comprising: a base and a vertebral body arranged on the base,
two opposite surfaces of the cone are triangular, and four sides of the base are regular or irregular quadrangles.
6. An optical film as recited in claim 1, wherein the triangular prisms have a triangular cross-section and the heights of adjacent triangular prisms are equal or unequal.
7. The optical film of claim 1, comprising a carrier layer having disposed thereon a transparent embossed adhesive layer formed from a transparent embossed adhesive.
8. A method for producing an optical film, comprising the steps of:
forming a texture layer with a triangular prism structure,
cutting a plurality of cylinders with the same or different lengths in the arrangement direction of at least part of triangular prisms on the basis of a jig to form first cutting parts respectively, and/or cutting a plurality of cylinders with certain lengths in the arrangement direction of at least part of triangular prisms on the basis of a jig to form second cutting parts comprising special-shaped triangular prisms respectively, cutting preset patterns on the triangular prisms on the basis of a jig, and simultaneously carrying out depth change/depth period change, wherein the lower side of the cut part presents an atomization effect, and the atomization effect is gradually deepened;
or alternatively, the first and second heat exchangers may be,
when the jig is used for cutting the cylinder of the triangular prism, the cutting interval is controlled so as to form textures with the rectangular pyramid, and the depth of the jig is controlled during cutting so that part of the rectangular pyramid is cut into the special-shaped rectangular pyramid; the shaped rectangular pyramid, comprising: a base and a vertebral body arranged on the base; two opposite surfaces of the cone body are triangular, and the other two opposite surfaces are trapezoidal; by adjusting the height of the base of the special-shaped rectangular pyramid, the shape of the triangle and the trapezoid, atomization effects of different degrees are increased on the basis of transparent light shadows.
9. A method for manufacturing an optical film is characterized in that,
manufacturing a mold engraved with a structure matching the triangular prism and a pattern matching the first cutting portion and/or the second cutting portion of any one of claims 1 to 7,
and (3) coating imprinting glue, imprinting, solidifying and demolding by using the mold.
10. An electronic device cover sheet, wherein the optical film according to any one of claims 1 to 7 is mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011366243.9A CN112462456B (en) | 2020-11-29 | 2020-11-29 | Optical film, manufacturing method and electronic equipment cover plate carrying same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011366243.9A CN112462456B (en) | 2020-11-29 | 2020-11-29 | Optical film, manufacturing method and electronic equipment cover plate carrying same |
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| CN112462456A CN112462456A (en) | 2021-03-09 |
| CN112462456B true CN112462456B (en) | 2023-10-20 |
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| CN101981474A (en) * | 2008-04-02 | 2011-02-23 | 3M创新有限公司 | Light directing film and method for making the same |
| JP2010113126A (en) * | 2008-11-06 | 2010-05-20 | Goyo Paper Working Co Ltd | Scratch-resistant prism sheet and method for producing the same |
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