CN117348122A - Optical film and electronic device cover plate - Google Patents
Optical film and electronic device cover plate Download PDFInfo
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- CN117348122A CN117348122A CN202311215959.2A CN202311215959A CN117348122A CN 117348122 A CN117348122 A CN 117348122A CN 202311215959 A CN202311215959 A CN 202311215959A CN 117348122 A CN117348122 A CN 117348122A
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- 239000012788 optical film Substances 0.000 title claims abstract description 67
- 239000002086 nanomaterial Substances 0.000 claims abstract description 28
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- 239000000758 substrate Substances 0.000 claims description 35
- 230000008859 change Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000003491 array Methods 0.000 claims description 4
- 239000011800 void material Substances 0.000 claims description 4
- 229910003460 diamond Inorganic materials 0.000 claims 1
- 239000010432 diamond Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 74
- 238000005491 wire drawing Methods 0.000 description 12
- 239000011521 glass Substances 0.000 description 10
- 239000003292 glue Substances 0.000 description 10
- 230000000007 visual effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 9
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- 229910052751 metal Inorganic materials 0.000 description 4
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- 230000003287 optical effect Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
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- 238000001723 curing Methods 0.000 description 3
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- 238000000016 photochemical curing Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
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- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
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- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
- G02B30/29—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays characterised by the geometry of the lenticular array, e.g. slanted arrays, irregular arrays or arrays of varying shape or size
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention discloses an optical film, which comprises a bearing layer and a micro-nano structure layer. The bearing layer comprises an edge area positioned at the edge of the bearing layer and an inland area positioned at the inner side of the edge area, wherein the edge area comprises a first edge adjacent to the inland area and a second edge opposite to the first edge and positioned at the outer side. The micro-nano structure layer comprises edge textures arranged in the edge area; wherein the edge texture varies from the first edge to the second edge such that a stereoscopic effect is visually present in the edge region. Therefore, the edge of the optical film presents a 3D effect, and when the optical film is applied to the cover plate of the electronic equipment, the cover plate of the electronic equipment can be made into a 2.5D cover plate or a 3D cover plate. In addition, the invention also discloses an electronic equipment cover plate with the optical film.
Description
The application is filed with the application number 201710826557.4, the application date 2017, 09 and 14, and the application name is 'optical film and electronic equipment cover plate'.
Technical Field
The invention relates to the field of optics, in particular to an optical film and an electronic equipment cover plate.
Background
In recent years, with the increasing development of the scientific industry, electronic devices such as mobile phones or tablet computers have been increasingly widely used in daily life. The use of these products is becoming more common and advancing towards convenient, versatile and aesthetically pleasing designs. When consumers purchase these products, the aesthetic feeling of the design has become an important purchase factor in addition to the software and hardware functions.
In pursuit of science and technology and aesthetic appeal, more and more electronic device covers began to use 2.5D glass. The 2.5D glass is characterized in that the front surface is a plane, the edge part is sunken downwards to form an arc-shaped glass, and compared with common glass, the 2.5D glass has good touch feeling and visual effect, and the color value of the mobile phone is improved. However, the 2.5D glass processing technology is complex, difficult, unstable in process and easy to break, so that the development of the 2.5D electronic equipment cover plate is limited.
Disclosure of Invention
Based on this, it is necessary to provide an optical film to solve the above technical problems.
The technical scheme of the invention is as follows:
an optical film, comprising:
the bearing layer comprises an edge area positioned at the edge of the bearing layer and an inland area positioned at the inner side of the edge area, wherein the edge area comprises a first edge adjacent to the inland area and a second edge opposite to the first edge and positioned at the outer side;
the micro-nano structure layer comprises edge textures which are arranged in the edge area;
wherein the edge texture varies from the first edge to the second edge such that a stereoscopic effect is visually present in the edge region.
In one embodiment, the change means that there is a difference in the parameters of the edge texture.
In one embodiment, the edge texture is different in one or more of type, length, width, height, radius, relief, angle, density, and area parameters.
In one embodiment, one or more parameters of the edge texture change regularly or randomly from the first edge to the second edge.
In one embodiment, the edge texture is at least one of square wiredrawing, small short lines, micro lenses, curved linear cylindrical mirrors and curved cylindrical mirrors.
In one embodiment, the edge texture is cylindrical mirrors, the cylindrical mirrors extend along the edge and are arranged from the first edge to the second edge in the edge area, and the cylindrical mirrors in the same row are different.
In one embodiment, at least one of the width, the height, the cross-sectional shape, the concave-convex type, and the pitch size of the cylindrical mirror is different.
In one embodiment, the edge texture is a square drawing, the square drawing is a plurality of drawing textures which are arranged in an array and are mutually independent in square areas, and the drawing textures between the square areas have different extending directions in the arrangement direction from the first edge to the second edge.
In one embodiment, the edge texture is a small short line, the small short lines are arranged in the edge area, and the small short lines in the same row are different from the first edge to the second edge.
In one embodiment, the small short lines have at least one of different lengths, widths, heights, irregularities, linear shapes, cross-sectional shapes, deflection angles, and pitch sizes.
In one embodiment, the edge texture is a microlens, the plurality of microlens arrays are arranged in the edge region, and the microlenses in the same row are different from the first edge to the second edge.
In one embodiment, the microlenses differ in at least one of height, width, cross-sectional shape, and pitch size.
In one embodiment, the edge textures of the two oppositely disposed edges are mirror image or the same.
In one embodiment, at least one edge of the peripheral edges of the bearing layer is set as the edge area, and the edge area is internally provided with the edge texture; and/or the preset position at the non-peripheral edge of the bearing layer is a void area, at least one edge of the void area is set as an edge area, and the edge area is internally provided with the edge texture.
In one embodiment, the micro-nano structure layer does not extend to the inland area, or the micro-nano structure layer is a flat surface in the inland area.
In one embodiment, the micro-nano structure layer further includes inland textures arranged in the inland region, and the inland textures are uniformly arranged, regularly changed or randomly changed.
In one embodiment, the inland texture is of the same type, length, width, height, concavity and convexity, angle, density and area parameters, and the inland texture is one of square wiredrawing, short lines, micro lenses, linear cylindrical mirrors and curved cylindrical mirrors.
In one embodiment, at least one parameter of the type, length, width, height, concave-convex, angle, density or area of the inland texture is changed regularly or randomly, and the inland texture is at least one of square drawing, small short lines, micro lenses and cylindrical mirrors.
In one embodiment, the micro-nano structure layer is made of a colored material.
The invention also discloses an electronic equipment cover plate which comprises a substrate and the optical film arranged on the substrate.
In one embodiment, the substrate is a glass substrate, a metal substrate, a ceramic substrate, a plastic substrate, or a composite substrate.
The invention has the beneficial effects that: the edge textures which are changed from the first edge to the second edge of the edge area have different effects of reflection, refraction and the like on light, so that the edge of the optical film presents a 3D effect, and when the optical film is applied to an electronic equipment cover plate, the electronic equipment cover plate can be made into a 2.5D cover plate or a 3D cover plate, and the optical film has good visual effect, low process difficulty, stable manufacturing process and difficult breaking.
Drawings
FIG. 1 is a schematic view of an optical film according to the present invention;
FIG. 2 is a schematic cross-sectional view taken along line A-A' of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the device of FIG. 2;
FIG. 4 is a schematic view of another optical film according to the present invention;
FIG. 5 is a schematic view of another optical film according to the present invention;
FIG. 6 is an enlarged view of circle B of FIG. 5;
FIG. 7 is a schematic view of another optical film according to the present invention;
FIG. 8 is an enlarged view of circle C and C' of FIG. 7;
FIG. 9 is an enlarged view of yet another of FIG. 8;
FIG. 10 is a schematic view of another optical film according to the present invention;
FIG. 11 is a schematic view of another optical film according to the present invention;
FIG. 12 is a schematic view of a cover plate of an electronic device according to the present invention;
FIG. 13 is a schematic cross-sectional view taken along line D-D' of FIG. 12;
fig. 14 is a schematic cross-sectional view of the further embodiment of fig. 13.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, 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 belongs. The terminology used herein in the description of the invention 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.
The invention discloses an optical film, which comprises a bearing layer and a micro-nano structure layer. The bearing layer comprises an edge area positioned at the edge of the bearing layer and an inland area positioned at the inner side of the edge area, wherein the edge area comprises a first edge adjacent to the inland area and a second edge opposite to the first edge and positioned at the outer side. The micro-nano structure layer comprises edge textures which are arranged in the edge area. The edge texture varies from the first edge to the second edge such that the edge area is visually stereoscopic. The edge textures which are changed from the first edge to the second edge of the edge area have different effects of reflection, refraction and the like on light, so that the edge of the optical film presents a 3D effect, and when the optical film is applied to an electronic equipment cover plate, the electronic equipment cover plate can be made into a 2.5D cover plate or a 3D cover plate, and the optical film has good visual effect, low process difficulty, stable manufacturing process and difficult breaking.
Preferably, the variation refers to the difference in edge texture parameters. In particular to one or more of the type, length, width, height, concave-convex, angle, density and area parameters of the edge texture. One or more parameters of the edge texture change regularly or randomly from the first edge to the second edge. Such as the gradual decrease in the height of the edge texture, or the random variation of the bias angle of the edge texture, etc.
Preferably, the edge texture is at least one of square wiredrawing, short lines, micro lenses, linear cylindrical mirrors and curved cylindrical mirrors.
Preferably, the edge texture is a cylindrical mirror. The cylindrical mirrors extend along the edges and are arranged from the first edge to the second edge in the edge area, and the cylindrical mirrors in the same row are different. Specifically, at least one of the width, height, cross-sectional shape, concave-convex type, and pitch size of the cylindrical mirror is different. For example, the cross-sectional shape of the cylindrical mirror is a major arc, and the radius becomes gradually larger from the first side to the second side. The cylindrical mirror can be a linear cylindrical mirror, a curve cylindrical mirror, an arc cylindrical mirror, a fold-line cylindrical mirror and the like.
Preferably, the edge texture is square drawing. The square wire drawing is a plurality of wire drawing textures which are arranged in an array and are arranged in the square areas independently of each other. The wiredrawing textures between the square areas have different extending directions in the arrangement direction from the first edge to the second edge. The drawn textures in the same square area are randomly arranged and have different gaps, lengths, widths, undulations and the like, but the drawn textures in the same square area extend in the same direction. The extending directions of the drawing textures in different square areas in the same row are different, and the extending directions of the drawing textures in the square areas in the same column are the same. Adjacent square areas can be arranged in a clearance way or can be arranged in a clearance way.
Preferably, the edge texture is a small stub. The plurality of short lines are arranged in the edge area and the short lines in the same row are different from the first edge to the second edge. Specifically, at least one of the length, width, height, concavity and convexity, line shape, cross-sectional shape, deflection angle, and pitch of the minor short line is different.
Preferably, the edge texture is a microlens. The plurality of micro lens arrays are arranged in the edge area, and the micro lenses in the same row are different from the first edge to the second edge. Specifically, at least one of the height, width, cross-sectional shape, pitch size of the microlenses is different.
Preferably, the edge textures of the two opposite edges are arranged in mirror image. For example, when the optical film is applied to the back cover of the mobile phone, the edge textures of the upper edge and the lower edge are arranged in a mirror image mode, and the edge textures of the left edge and the right edge are also arranged in a mirror image mode.
Preferably, at least one edge of the peripheral edge of the bearing layer is set as an edge area, and edge textures are arranged in the edge area. In other embodiments, the bearing layer is cut at the non-peripheral edge, i.e. the middle position, to form the empty region, and the bearing layer forms an edge region at least at one edge of the empty region, and edge textures are arranged in the edge region. Even if the empty area is not cut out, but a predetermined area, such as when the optical film is attached to the rear cover of the mobile phone, the position of the dual cameras of the rear cover of the mobile phone is the empty area, and the empty area can be actually cut out, or can be defined without cutting out, the circumference of the empty area is also set as an edge area, and the edge area is also provided with edge textures.
Preferably, the micro-nano structure layer does not extend to the inland region, or the micro-nano structure layer is a flat surface in the inland region. Only the edge area is provided with textures, so that an inland area is avoided. Or only the edge area is formed with concave-convex texture, and the inland area is not formed with texture. When the optical film is applied to a product, the inland area does not have an optical effect, and the edge area can generate a 3D optical effect, so that the cover plate of the product becomes a 2.5D cover plate.
Preferably, the micro-nano structure layer further comprises an inland texture arranged in the inland region. The inland textures are uniformly arranged, regularly changed or randomly changed. Specifically, parameters such as type, length, width, height, concave-convex, angle, density and area of the inland texture are the same, and the inland texture can be one of square wiredrawing, small short lines, micro lenses and cylindrical mirrors. Or, specifically, at least one parameter of the type, length, width, height, concave-convex, angle, density or area of the inland texture changes regularly or randomly, and the inland texture can be at least one of square wiredrawing, small short lines, micro lenses and cylindrical mirrors. When the optical film is applied to a product, the optical effect can be generated due to uniform arrangement of inland textures of the inland region, so that the shell of the product has a 3D effect.
Preferably, the material of the micro-nano structure layer can be thermosetting glue or photo-curing glue, and is formed by means of imprinting or photoetching. The micro-nano structure layer can also comprise a residual adhesive layer after imprinting or photoetching, and after curing, the residual adhesive layer and the bearing layer can be fused into a one-piece structure. Of course, the micro-nano structure layer also can be provided with no residual adhesive layer. In some embodiments, the stub layer may serve the role of the carrier layer. The bearing layer can also be any one or a combination of PET, PC, PMMA or PE. For example, if the bearing layer is a PET layer, coating photo-curing glue on the PET layer, embossing and curing to form a micro-nano structure layer, and leaving a residual glue layer; the micro-nano structure layer can also be directly formed on the PET layer by printing and the like, and the micro-nano structure layer is not provided with a residual adhesive layer. The micro-nano structure layer can be colorless or colored, such as using colored thermosetting glue or photo-curing glue, etc. The carrier layer may be colorless or colored, such as with colored PET, PC, PMMA or PE, etc.
Preferably, the optical film further comprises a reflecting layer covered on the micro-nano structure layer and a coloring layer covered on the reflecting layer. The reflecting layer is used for enhancing the optical effect, and the coloring layer can bring color to the optical film. The material of the reflective layer may be selected from metals, metal oxides or non-metal oxides. The material of the coloring layer may be selected from coloring materials, metallic oxides, or nonmetallic oxides.
Preferably, the optical film further comprises a protective layer arranged on the micro-nano structure layer, wherein the refractive index of the protective layer is different from that of the micro-nano structure layer, and the refractive index difference is more than or equal to 0.5.
Preferably, the micro-nano structure layer is made of a colored material, specifically a colored polymer material, colored ink and colored curing glue. Such as colored UV glue. Preferably, the edge texture is formed by colored materials, so that the color is more gorgeous, the color mixing is easy, and the coating film can be weakened, thereby simplifying the process.
The invention also discloses an electronic equipment cover plate which comprises a substrate and the optical film arranged on the substrate. The substrate may be a glass substrate, a metal substrate, a ceramic substrate, a plastic substrate, a composite substrate, or the like. The optical film is attached to the substrate or directly formed on the substrate, so that the cover plate of the electronic equipment can have a 2.5D or 3D effect, the visual effect is good, the color value of the product is improved, the process difficulty is low, the manufacturing procedure is stable, and the electronic equipment is not easy to break.
The optical film of the present invention is illustrated by referring to the drawings.
Referring to fig. 1 and 2, the present invention discloses an optical film 100, which includes a carrier layer 11 and a micro-nano structure layer 12. The carrier layer 11 comprises an edge region 111 at the edge of the carrier layer and an inland region 112 at the inner side of the edge region. The edge region 111 includes a first edge adjacent to the inland region 112 and a second edge opposite to and outside the first edge. The micro-nano structured layer 12 comprises an edge texture 121 arranged in the edge region 111. The edge texture 121 is a cylindrical mirror extending along the edge and arranged from the first side to the second side in the edge region, and the heights of the cylindrical mirrors in the same row are different. The cross-sectional areas of the cylindrical mirrors are in arc-shaped, equal-width and equidistant arrangement, and the height of the cylindrical mirrors close to the first side is larger than that of the cylindrical mirrors close to the second side. The heights of the cylindrical mirrors gradually decrease from the first side to the second side, and the cylindrical mirrors in the edge areas on the left side and the right side are arranged in a mirror image mode. The micro-nano structured layer 12 is flat in the inland area, i.e. has no concave-convex texture. After the UV glue is applied to the carrier layer 11, the edge area is embossed with the edge texture, while the inland area is not embossed with the flat UV glue.
Referring to fig. 3, another cross-sectional example of an optical film is different from the above embodiment in that the cylindrical mirror of the edge texture 121' is a concave structure, and the depth of the concave gradually increases from the first edge to the second edge.
Referring to fig. 4, the optical film 100 "differs from the optical film 100 in that the width of the cylindrical mirror of the edge texture 121" varies randomly from the first edge to the second edge.
Referring to fig. 5 and 6, an optical film 200 is disclosed, which includes a carrier layer 21 and a micro-nano structured layer 22. The carrier layer 21 comprises an edge region 211 at the edge of the carrier layer and an inland region 212 located inside the edge region 211. The edge region 211 includes a first edge adjacent to the inland region 212 and a second edge opposite to and outside the first edge. The micro-nano-structured layer 22 comprises an edge texture 221 arranged in the edge region 211. The edge texture 221 is a square drawing. The square wire drawing is a plurality of wire drawing textures which are arranged in an array and are mutually independent in the square areas, and the wire drawing textures among the square areas have different extending directions in the arrangement direction from the first edge to the second edge. The lengths of the wiredrawing textures in the same square area are different and are randomly distributed, but have the same extending direction. For defining the angle α between the extending direction and the horizontal direction, taking the circled portion in fig. 5 as an example, please refer to the enlarged view of fig. 6, the square drawing in the edge region 211 on the right side is gradually increased from the first side to the second side. The square drawing of the left edge region 211 is arranged identically to the square drawing of the right edge region 211. I.e. the square of the left edge region 211 is drawn from the first side to the second side, a becomes smaller. The square areas are arranged at intervals, the drawing textures of square drawing from the first side to the second side in the same row are gradually changed, and the drawing textures of square drawing in the same row are arranged identically. The micro-nano-structure layer 22 does not extend to the inland region 212 such that the inland region 212 is substantially free of space relative to the edge region 211.
Referring to fig. 7 and 8, an optical film 300 is disclosed, which includes a carrier layer 31 and a micro-nano structure layer 32. The carrier layer 31 comprises an edge region 311 at the edge of the carrier layer and an inland region 312 at the inner side of the edge region. The edge region 311 includes a first edge adjacent to the inland region 312 and a second edge opposite to and outside the first edge. The micro-nano-structured layer 32 includes an edge texture 321 arranged in the edge region 311. The edge texture 321 is a plurality of micro lenses arranged in the edge region 311, and the radii of the micro lenses in the same row gradually decrease from the first side to the second side. In the same row, the circle centers of the microlenses are positioned on a straight line, and the distances between the adjacent microlenses are different. According to the direction of viewing fig. 7, the edges of the left and right sides of the carrier layer 31 are defined as edge regions 311, and edge textures are disposed in the edge regions 311, wherein the edge textures are a plurality of microlenses arranged, and the microlenses of the edge regions 311 on the left and right sides are mirror images. The micro-nano-structure layer 32 does not extend to the inland region 312, such that the inland region 312 is substantially free of space relative to the edge region 311.
Referring to fig. 9, the difference is that the edge texture 321' is in the same row from the first edge to the second edge of the edge region, and the radius of the micro lens is gradually increased compared with fig. 8.
Referring to fig. 10, an optical film 400 is disclosed, which includes a carrier layer 41 and a micro-nano structured layer 42. The carrier layer 41 comprises an edge region 411 at the edge of the carrier layer and an inland region 412 at the inner side of the edge region 411. The edge region 411 includes a first edge adjacent to the inland region 412 and a second edge disposed opposite and outboard of the first edge. The micro-nano structured layer 42 comprises an edge texture 421 arranged in the edge area 411. The edge texture 421 is a small short line, and a plurality of small short lines are arranged in the edge region, and the deflection angles of the small short lines in the same row are different from the first edge to the second edge. The small short lines are linear cylindrical mirrors and are cuboid, the center points of the small short lines are located on the same straight line in the same row, the small short lines are offset from the center points of the small short lines, the offset angles of the small short lines in the same row gradually become larger from the first side to the second side, and the small short lines in the same row have the same offset angle. With the angle of viewing fig. 10, the left and right sides define edge areas 411, and the edge areas are respectively provided with a plurality of short lines, and the short lines on the left and right sides are arranged in mirror images. The micro-nano structured layer 42 also includes an inland texture 422 located in the inland region. The inland texture is small short lines, the small short line arrays are uniformly arranged, and the bias of each small short line is the same and is 0 degrees. The inland texture of the inland region is uniformly arranged, and there is no variation between the minor short lines. Therefore, when the optical film 400 is arranged on the electronic equipment cover plate, the electronic equipment cover plate can show a 3D effect, the visual effect is good, the process is not complex, the manufacturing process is stable, and the electronic equipment cover plate is not easy to break. In other embodiments, the small short lines of the inland texture may be regularly arranged, for example, the small short lines are arranged in an equal angle offset manner, so that the inland texture can present light and shadow stripes varying with the visual angle, and the decorative effect of the optical film is improved. Of course, in other embodiments, the short lines of the inland texture may be randomly arranged, such as random width, random length, random deflection angle, or random distribution, and the like, to generate the shadow effect.
Referring to fig. 11, the optical film 400 'is different from the optical film 400 in that the offset angles of the minor short lines in the same row become sequentially smaller from the first side to the second side of the edge texture 421'. The offset angles of the minor stubs of the inland texture 422' are all the same, and are all 90 degrees.
Referring to fig. 12, 13 and 14, an electronic device cover plate S100 of the present invention is disclosed, which includes a substrate S1 and any one of the optical films S2 disposed on the substrate S1. The substrate s1 is a glass substrate, a metal substrate, a ceramic substrate, a plastic substrate, or a composite substrate. The optical film s2 is attached to the upper side or the lower side of the substrate s1, or the optical film s2 is molded to the upper side (fig. 13) or the lower side (fig. 14) of the substrate s 1. The edge area of the optical film S2 is provided with edge textures, and the edge textures change from the first edge to the second edge, so that the edge of the optical film S2 can present the visual effect of chamfering indicated by a dotted line L, and the electronic equipment cover plate S100 presents the visual effect of 2.5D or 3D. The electronic equipment cover plate is made into the 2.5D cover plate or the 3D cover plate by arranging the optical film on the substrate, and the method is simple in process, stable in manufacturing process and not easy to break, so that a good market prospect is obtained. The bank area of the optical film is provided with image-text textures, the image-text textures change from the inner side to the outer side, so that the bank area of the optical film can show a visual effect shown by a broken line L, namely, the effect of the image-text textures of the optical film on light rays can make the edge of the substrate visually look like a chamfer angle when the optical film is arranged on the substrate, and the visual effect of 2.5D or 3D formed after chamfering the glass substrate can be achieved. The optical film has the advantages of simple process, stable manufacturing process, difficult breaking, no limitation of the type of the substrate and great expansion of application.
The foregoing embodiments of the invention are explained in detail with reference to the accompanying drawings so that the above objects, features and advantages of the invention can be more clearly understood. In the above description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms than described above and similar modifications may be made by those skilled in the art without departing from the spirit of the invention, and it is therefore not to be limited to the specific embodiments disclosed above. In addition, the technical features of the above-described embodiments may be combined arbitrarily, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description of the present specification.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. An optical film, comprising:
the bearing layer comprises an edge area positioned at the edge of the bearing layer and an inland area positioned at the inner side of the edge area, wherein the edge area comprises a first edge adjacent to the inland area and a second edge opposite to the first edge and positioned at the outer side;
the micro-nano structure layer comprises edge textures which are arranged in the edge area; one or more parameters of the edge texture change regularly or randomly from the first edge to the second edge, and the edge of the optical film presents a 3D effect.
2. An optical film as recited in claim 1, wherein the parameters of the edge texture include type, length, width, height, radius, relief, angle, density, and area.
3. An optical film as recited in claim 1, wherein the edge texture is at least one of diamond wire, small stubs, microlenses, rectilinear cylindrical mirrors, curvilinear cylindrical mirrors.
4. An optical film as recited in claim 1, wherein the edge texture is cylindrical mirrors extending along an edge and arranged from a first side to a second side at an edge region, the cylindrical mirrors of a same row differing in at least one of width, height, cross-sectional shape, type of relief, pitch, and size.
5. An optical film according to claim 1, wherein the edge texture is a square drawing, the square drawing is a drawing texture provided in a plurality of square areas arranged in an array and independent from each other, and the drawing textures between square areas have different extending directions from the first side to the second side in the arrangement direction.
6. An optical film as recited in claim 1, wherein the edge texture is small short lines, a plurality of the small short lines are arranged in the edge region, and at least one of a length, a width, a height, a concave-convex, a line shape, a cross-sectional shape, a deflection angle, a pitch, and a size of the small short lines in the same row is different from the first edge to the second edge.
7. The optical film according to claim 1, wherein the edge texture is a microlens, and the plurality of microlens arrays are arranged in the edge region, and at least one of a height, a width, a cross-sectional shape, and a pitch of the microlenses in the same row is different from the first side to the second side.
8. An optical film as recited in claim 1, wherein the edge textures of the two oppositely disposed edges are mirror image or the same.
9. An optical film as recited in claim 1, wherein at least one of the peripheral edges of the carrier layer is configured as the edge region, the edge region having the edge texture disposed therein; and/or the preset position at the non-peripheral edge of the bearing layer is a void area, at least one edge of the void area is set as the edge area, and the edge area is internally provided with the edge texture.
10. An electronic device cover comprising a substrate and the optical film of claims 1 to 9 disposed on the substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311215959.2A CN117348122A (en) | 2017-09-14 | 2017-09-14 | Optical film and electronic device cover plate |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311215959.2A CN117348122A (en) | 2017-09-14 | 2017-09-14 | Optical film and electronic device cover plate |
| CN201710826557.4A CN109507763A (en) | 2017-09-14 | 2017-09-14 | Optical thin film and electronic equipment cover board |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710826557.4A Division CN109507763A (en) | 2017-09-14 | 2017-09-14 | Optical thin film and electronic equipment cover board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117348122A true CN117348122A (en) | 2024-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311215959.2A Pending CN117348122A (en) | 2017-09-14 | 2017-09-14 | Optical film and electronic device cover plate |
| CN201710826557.4A Pending CN109507763A (en) | 2017-09-14 | 2017-09-14 | Optical thin film and electronic equipment cover board |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710826557.4A Pending CN109507763A (en) | 2017-09-14 | 2017-09-14 | Optical thin film and electronic equipment cover board |
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| CN (2) | CN117348122A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112839120B (en) * | 2020-12-28 | 2023-01-10 | 北京小米移动软件有限公司 | Electronic device |
| CN114697413B (en) * | 2020-12-29 | 2023-10-10 | Oppo广东移动通信有限公司 | Display assembly, manufacturing method thereof and electronic equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279425B (en) * | 2010-06-11 | 2013-09-25 | 迎辉科技股份有限公司 | Hardened film with three-dimensional grain |
| CN203894424U (en) * | 2014-05-26 | 2014-10-22 | 东莞市纳利光学材料有限公司 | Optical protection film having 3D visual effect |
| CN205179574U (en) * | 2015-12-04 | 2016-04-20 | 深圳市金凯新瑞光电股份有限公司 | Sheet metal housing decoration |
| CN205365001U (en) * | 2015-12-17 | 2016-07-06 | 昇印光电（昆山）股份有限公司 | Device with decorative pattern |
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2017
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| CN109507763A (en) | 2019-03-22 |
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