CN109471208B - Optical film, mold and electronic equipment cover plate - Google Patents
Optical film, mold and electronic equipment cover plate Download PDFInfo
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- CN109471208B CN109471208B CN201710804310.2A CN201710804310A CN109471208B CN 109471208 B CN109471208 B CN 109471208B CN 201710804310 A CN201710804310 A CN 201710804310A CN 109471208 B CN109471208 B CN 109471208B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0037—Arrays characterized by the distribution or form of lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/12—Reflex reflectors
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Abstract
The invention discloses an optical film, comprising: a carrier layer; the texture structure area is positioned on one side of the bearing layer and is provided with a raised and/or depressed texture structure; the first window is located in the texture structure area, and a raised and/or recessed first micro-nano structure is/are arranged in the area where the first window is located. The invention provides an optical film, the texture structure of the film comprises a texture area and a first window, and the texture structure of the texture area and the first texture of the first window are manufactured at the same time, so that the preparation time of different textures in different areas is greatly reduced, and the manufacturing cost is also greatly reduced; the film can not only enable the micro-nano structure at the flash lamp to be formed by one-time stamping, but also enable the micro-nano structure at the camera window to be formed by one-time stamping of a die; the preparation process flow is saved.
Description
Technical Field
The invention relates to the technical field of optical films and equipment cover plates, in particular to an optical film, a mold and an electronic equipment cover plate.
Background
With the development of science and technology, decorative films are widely applied to the surfaces of electronic products such as mobile phones and computers, household appliances such as refrigerators, air conditioners and washing machines, and products such as automobiles.
Conventional decorative films are used as surface materials for mobile devices such as mobile phones and notebook computers, and as surface materials for molding of household appliances such as refrigerators, washing machines, and air conditioners, and are used by embodying various patterns and metallic textures by gravure printing.
For example, a flash lamp window on a rear cover plate of a mobile phone generally forms an opening on the decorative film (or the optical film), then a fresnel lens is made on the rear cover of the mobile phone, and finally the fresnel lens is aligned and attached; such a process greatly increases the manufacturing cost and the yield may be reduced. Therefore, it is necessary to provide an optical film, a mold and an electronic device cover plate to solve the existing technical problems.
Disclosure of Invention
In view of the above, it is desirable to provide an optical film, a mold and an electronic device cover plate to solve the above problems.
The technical scheme of the invention is as follows:
an optical film, comprising:
a carrier layer;
the texture structure area is positioned on one side of the bearing layer and is provided with a raised and/or depressed texture structure;
the first window is located in the texture structure area, and a raised and/or recessed first micro-nano structure is/are arranged in the area where the first window is located.
In one embodiment, a second window is further arranged and located in the texture structure region, the second window includes a perspective region and a second micro-nano structure region, and the second micro-nano structure region is provided with a raised and/or recessed second micro-nano structure.
In one embodiment, the texture structure area and the second micro-nano structure area are provided with a reflecting layer, and the reflecting layer covers the texture structure area and the second micro-nano structure area;
or the texture structure area is provided with a reflecting layer, and the reflecting layer covers the texture structure area.
In one embodiment, coloring layers are arranged on the reflecting layer and one side of the second micro-nano structure region, which is far away from the bearing layer.
In one embodiment, the texture structure and the first micro-nano structure are directly formed on the surface of the bearing layer and are integrated with the bearing layer.
In one embodiment, the texture structure, the first micro-nano structure and the second micro-nano structure are directly formed on the surface of the bearing layer and are integrated with the bearing layer.
In one embodiment, the carrier layer is a thermosetting or photocurable polymer.
In one embodiment, a substrate layer is further arranged on one side of the bearing layer away from the texture structure area; or the base material layer is connected with one side, far away from the texture structure area, of the bearing layer through the bonding layer.
In one embodiment, the first micro-nano structure can change the transmission direction of light.
In one embodiment, the texture structure is selected from one or a combination of more than two of a linear cylindrical lens, a curved cylindrical lens, a small short line, a micro lens, a relief texture, a CD texture and a Fresnel lens; the first micro-nano structure is a Fresnel lens.
In one embodiment, the second micro-nano structure is selected from one or more of a linear cylindrical lens, a curved cylindrical lens, a small short line, a micro lens, a relief texture, a CD texture and a fresnel lens.
A mold for making an optical film comprising:
a substrate layer;
the bearing layer is positioned on one side of the substrate layer;
the texture structure area is positioned on one side, far away from the base material layer, of the bearing layer, and is provided with a raised and/or recessed texture structure;
the first window is located in the texture structure area, and a raised and/or recessed first micro-nano structure is/are arranged in the area where the first window is located.
In one embodiment, a second window is further arranged and located in the texture structure region, the second window includes a perspective region and a second micro-nano structure region, and the second micro-nano structure region is provided with a raised and/or recessed second micro-nano structure.
In one embodiment, a shielding piece is arranged between the substrate layer and the bearing layer.
An electronic device cover comprising the optical film of any of the preceding claims.
The invention has the beneficial effects that:
the invention provides an optical film, the texture structure of the film comprises a texture area and a first window, and the texture structure of the texture area and the first texture of the first window are manufactured simultaneously, so that the preparation time of different textures in different areas is greatly reduced, and the manufacturing cost is also greatly reduced;
according to the optical film provided by the invention, the micro-nano structure at the flash lamp can be formed by one-time stamping, and the micro-nano structure at the camera window can also be formed by one-time stamping of the mold; the preparation process flow is saved.
Drawings
FIG. 1 is a schematic diagram of a cover plate of an electronic device according to the present invention;
FIG. 2 is a schematic view of an optical film structure according to the present invention;
FIG. 3 is a schematic structural diagram of an optical film with a reflective layer according to the present invention;
FIG. 4 is a schematic view of a structure of an optical film with a color layer according to the present invention;
FIG. 5 is a schematic view of another structure of an optical film with a reflective layer according to the present invention;
FIG. 6 is a schematic view of another structure of an optical film with a colored layer according to the present invention;
FIG. 7 is a schematic view of another structure of an optical film according to the present invention;
FIG. 8 is a schematic view of another structure of an optical film according to the present invention
FIG. 9 is a schematic diagram of a first micro-nano structure in a decorative sheet according to the invention;
FIG. 10 is a schematic structural view of a mold for manufacturing a decorative sheet according to the present invention; .
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described below. 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 as used herein are for illustrative purposes only and do not represent the only embodiments.
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. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 2, an optical film includes:
the bearing layer 11 may be a thermosetting adhesive or a light-curing adhesive, the thermosetting adhesive or the light-curing adhesive may also be colored, and a colored layer may also be disposed on one side or both sides of the bearing layer 11;
the texture structure area 10 is positioned on one side of the bearing layer 11, and the texture structure area 10 is provided with a raised and/or depressed texture structure 22; the texture structure 22 can be embossed on the carrier layer 11 by a mold, and then solidified to form a complementary raised and/or depressed texture structure 22 on the mold; of course, embossing is only one way, and the texture structure may also be formed by photolithography, screen printing, or inkjet printing. The texture structure 22 may be one or a combination of two or more of a linear cylindrical lens, a curved cylindrical lens, a small short line, a micro lens, a relief texture, a micro-nano structure arranged continuously, a CD texture and a Fresnel lens.
The first window 30 is located in the texture structure region 10, and a raised and/or recessed first micro-nano structure 31 is/are arranged in the region where the first window 30 is located. Referring to fig. 2, the first micro-nano structure 31 is a fresnel lens, that is, the first micro-nano structure 31 is used for collecting diffused light and emitting light rays in parallel as much as possible, and here, the first window 30 is used for collecting light rays; of course, the first window 30 may also be a window of a camera (not shown in the figure), and if the first window is a window of a camera, the structure of the first window is the same as that of the second window. Of course, the first window may also have anti-reflection, light direction changing or moth-eye functions, so that the first micro-nano structure may be not only a fresnel lens, but also a moth-eye structure, or a deformed structure of a fresnel lens (as shown in fig. 9).
Referring to fig. 2, in an embodiment, a second window 20 is further provided, the second window 20 is located in the texture structure region 10, the second window 20 includes a perspective region and a second micro-nano structure region, the second micro-nano structure region is provided with a raised and/or recessed second micro-nano structure 21, and when the second window 20 is used as a window of a camera, the second window 20 includes the perspective region and the second micro-nano structure region; of course, the second window 20 may also be a flash window (not shown), and if the second window is a flash window, the second window has the same structure as the first window.
Referring to fig. 3, in an embodiment, a reflective layer 40 is disposed in the texture region 10 and the second micro-nano structure region, and the reflective layer 40 covers the texture 22 region and the second micro-nano structure region 21; the second window 20 in fig. 2 is a camera window, so that the texture region 22 and the second micro-nano structure region 21 in the second window 20 cover the reflective layer, 40; the reflecting layer 40 is not conductive, and the transmittance of the reflecting layer 40 is 5% -80%; the reflective layer 40 serves to reflect light and may also serve to present color.
Referring to fig. 5, in one embodiment, the texture region 10 is provided with a reflective layer 41, and the reflective layer 41 covers the texture region 10; the reflective layer 41 described here covers the textured area 10, but the first window 30 and the second window 20 are not provided with the reflective layer 41; because the first window 30 is used as a flash lamp window, a reflective layer is not needed, and the second micro-nano structure region of the second window 20 may also not be provided with a reflective layer.
Referring to fig. 4, in an embodiment, coloring layers 50 and 51 are disposed on sides of the reflective layer 40 and the second micro-nano structure region, which are far away from the carrier layer 11, and the coloring layers 50 and 51 may play a role in priming and shading, and also may play a role in color matching or color rendering, or play a role in color matching with other color layers.
Referring to fig. 2 to 6, in an embodiment, the texture structure 22 and the first micro-nano structure 31 are directly formed on the surface of the bearing layer 11 and are integrated with the bearing layer 11, that is, the bearing layer 11 is a thermosetting or photo-curing adhesive, and a structure is directly formed on the surface of the bearing layer, so that the optical film has no substrate, is a bearing layer, is greatly reduced in thickness, is suitable for ultrathin products, and reduces the thickness, cost, and the like of final products.
Referring to fig. 2 to 6, in one embodiment, the texture structure 22, the first micro-nano structure 31, and the second micro-nano structure 21 are directly formed on the surface of the bearing layer 11 and are integrated with the bearing layer 11, that is, the bearing layer 11 is a thermosetting or photo-curing adhesive, and a structure is directly formed on the surface of the bearing layer, so that the optical film has no substrate and is a bearing layer, the thickness is greatly reduced, the optical film is suitable for ultra-thin products, and the thickness, the cost, and the like of final products are reduced.
Referring to fig. 7 and 8, in one embodiment, a substrate layer 12 is further disposed on a side of the carrying layer 11 away from the textured region 10; or still include substrate layer 12, substrate layer 12 through tie coat 13 with the texture district one side connection is kept away from to carrier layer 11, the substrate layer can be in PET, PC, PMMA, glass, metal or sapphire glass one or the combination more than two, and when the substrate layer was one, the substrate layer can be coloured material or be in substrate layer one side is equipped with coloured material or coloured membrane, and when the substrate layer was the composite sheet more than two, one of them panel was coloured material or coloured panel, or was equipped with coloured material or coloured membrane in a table of composite sheet.
In one embodiment, the second micro-nano structure 21 is selected from one or a combination of two or more of a linear cylindrical lens, a curved cylindrical lens, a small short line, a micro lens, a relief texture, a CD texture and a fresnel lens; at this time, the second micro-nano structure 21 serves as a window decoration texture of the camera, so that the area of the camera looks more beautiful.
The invention provides an optical film, wherein the texture structure of the film comprises a texture area and a first window, so that the texture structure of the texture area and the first texture of the first window are manufactured simultaneously, the preparation time of different textures in different areas is greatly reduced, and the manufacturing cost is also greatly reduced; the film can not only enable the micro-nano structure at the flash lamp to be formed by one-time stamping, but also enable the micro-nano structure at the camera window to be formed by one-time stamping through a die; the preparation process flow is saved.
Referring to fig. 9, a mold for manufacturing an optical film includes:
a base material layer 14; the same as the substrate layer 12 in fig. 8, except for different reference numerals in different product structures, for convenience of description;
the bearing layer is positioned on one side of the base material layer 14; the bearing layer can be made of heat curing glue or light curing glue;
the texture structure region 10 'is positioned on one side, far away from the base material layer 14, of the bearing layer, and the texture structure region 10' is provided with a raised and/or recessed texture structure; the texture structure can be selected from one or more than two combinations of linear cylindrical lenses, curved cylindrical lenses, small short lines, micro lenses, relief textures, continuously arranged micro-nano structures, CD (compact disc) patterns and Fresnel lenses;
a first window 30', wherein the first window 30' is located in the texture structure region 10', and a raised and/or recessed first micro-nano structure is/are arranged in the region where the first window 30' is located; the first texture structure can be a Fresnel lens and a micro-nano structure which can enable light rays to gather; however, when the first window is used as a camera window (not shown in the figure), the first micro-nano structure may be one or a combination of two or more selected from a linear cylindrical lens, a curved cylindrical lens, a small short line, a micro lens, a relief texture, a micro-nano structure arranged continuously, a CD texture and a fresnel lens.
Referring to fig. 9, in an embodiment, a second window 20 'is further provided, where the second window 20' is located in the texture structure region 10', and the second window 20' includes a see-through region and a second micro-nano structure region, where the second micro-nano structure region is provided with a raised and/or recessed second micro-nano structure; the second micro-nano structure can be one or a combination of more than two of a linear cylindrical lens, a curved cylindrical lens, a small short line, a micro lens, a relief texture, a continuously arranged micro-nano structure, a CD (compact disc) texture and a Fresnel lens; however, when the second micro-nano structure is used as a flash lamp window, the second micro-nano structure is a micro-nano structure for gathering light rays, such as a Fresnel lens.
Referring to fig. 9, in one embodiment, a shielding member 60 is disposed between the substrate layer 14 and the carrier layer, so that during the use process, the texture of some regions may need to be retained or removed, and the shielding member 60 is used for shielding, and the pattern selection is performed during the curing or forming process.
Referring to fig. 1, an electronic device cover plate includes any one of the optical films shown in fig. 2 to 8; the electronic device may be a 3C product as well as a white home appliance.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail. In the above description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will recognize without departing from the spirit and scope of the present invention. Moreover, the technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (13)
1. An optical film, comprising:
a carrier layer;
the texture structure area is positioned on one side of the bearing layer and is provided with a raised and/or depressed texture structure;
the first window is a flash lamp window, the first window is positioned in the texture structure area, and a raised and/or recessed first micro-nano structure is/are arranged in the area where the first window is positioned;
the second window is a camera window and is positioned in the texture structure area, the second window comprises a perspective area and a second micro-nano structure area, and the second micro-nano structure area is provided with a raised and/or recessed second micro-nano structure;
the reflecting layer covers the texture structure area and the second micro-nano structure area, but perspective areas of the first window and the second window are not provided with the reflecting layer;
the texture structure, the first micro-nano structure and the second micro-nano structure are formed on the same flat surface; the texture structure, the first micro-nano structure and the second micro-nano structure are directly formed on the surface of the bearing layer and are integrated with the bearing layer.
2. An optical film according to claim 1, wherein coloring layers are arranged on the sides of the reflecting layer and the second micro-nano structure region far away from the bearing layer.
3. An optical film according to claim 1, wherein the texture structure and the first micro-nano structure are directly formed on the surface of the carrier layer and are integrated with the carrier layer.
4. An optical film according to claim 1, wherein the texture structure, the first micro-nano structure and the second micro-nano structure are directly formed on the surface of the bearing layer and are integrated with the bearing layer.
5. An optical film as recited in claim 3 or 4, wherein the carrier layer is a thermally cured or photo-cured polymer.
6. An optical film as recited in claim 1, wherein the carrier layer further comprises a substrate layer on a side thereof remote from the textured region; or the base material layer is connected with one side, far away from the texture structure area, of the bearing layer through the bonding layer.
7. An optical film according to claim 1, wherein the first micro-nano structure can change the transmission direction of light.
8. An optical film as recited in claim 1, wherein the texture structure is selected from one or a combination of two or more of linear lenticular lens, curved lenticular lens, small short line, micro-lens, embossed texture, CD texture, and fresnel lens; the first micro-nano structure is a Fresnel lens.
9. An optical film according to claim 1, wherein the second micro-nano structure is selected from one or more of linear cylindrical lens, curved cylindrical lens, small short line, micro-lens, embossed texture, CD texture and Fresnel lens.
10. A mold for producing the optical film according to any one of claims 1 to 9, comprising:
a substrate layer;
the bearing layer is positioned on one side of the substrate layer;
the texture structure area is positioned on one side, far away from the base material layer, of the bearing layer, and is provided with a raised and/or recessed texture structure;
the first window is located in the texture structure area, and a raised and/or recessed first micro-nano structure is/are arranged in the area where the first window is located.
11. The mold for manufacturing an optical film according to claim 10, further comprising a second window, wherein the second window is located in the texture structure region, the second window comprises a transparent region and a second micro-nano structure region, and the second micro-nano structure region is provided with a second raised and/or recessed micro-nano structure.
12. The mold of claim 10, wherein a shielding member is disposed between the substrate layer and the carrier layer.
13. An electronic device cover plate comprising the optical film according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710804310.2A CN109471208B (en) | 2017-09-08 | 2017-09-08 | Optical film, mold and electronic equipment cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710804310.2A CN109471208B (en) | 2017-09-08 | 2017-09-08 | Optical film, mold and electronic equipment cover plate |
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| Publication Number | Publication Date |
|---|---|
| CN109471208A CN109471208A (en) | 2019-03-15 |
| CN109471208B true CN109471208B (en) | 2022-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710804310.2A Active CN109471208B (en) | 2017-09-08 | 2017-09-08 | Optical film, mold and electronic equipment cover plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111016522B (en) * | 2019-12-29 | 2021-10-29 | 昇印光电（昆山）股份有限公司 | Decorative membrane, mold, preparation method of decorative membrane and electronic equipment cover plate |
| CN112203458A (en) * | 2020-10-15 | 2021-01-08 | 深圳市锐尔觅移动通信有限公司 | Shell, preparation method of shell, shell assembly and electronic equipment |
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| CN206387924U (en) * | 2017-01-18 | 2017-08-08 | 昇印光电（昆山）股份有限公司 | Optical thin film and the mould for manufacturing the optical thin film |
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