CN210519122U - Optical diaphragm and electronic product cover - Google Patents

Abstract

The utility model discloses an optical diaphragm, it includes the basic unit and receives the structural layer a little. The micro-nano structure layer is arranged on one side of the base layer and comprises a first micro-nano structure unit, the first micro-nano structure unit comprises a plurality of first micro-nano substructures which are randomly arranged, and the first micro-nano substructures are protruding structures and/or recessed structures. The first micro-nano sub-structures which are randomly distributed are arranged on one side of the optical membrane, so that the optical membrane can have a frosting effect without sand blasting; the haze of the frosted surface is controlled by setting different density.

Description

Optical diaphragm and electronic product cover

Technical Field

The utility model relates to an electronic equipment technical field especially relates to an optics diaphragm and electronic product lid.

Background

In recent years, as the technology industry has been developed, some terminal products such as mobile phones or tablet computers have been widely used in daily life. The use of these end products is becoming more and more common and is moving towards convenient, versatile and aesthetically pleasing designs. When consumers shop for these products, the aesthetic appearance of the design has become an important purchasing factor besides the functions of software and hardware.

The design of the cover plate of the electronic device at present mainly comprises the selection of colors and the surface treatment, such as the selection of black, white, silver and golden colors, and the surface treatment of metal texture and wire drawing. However, neither the selection of the color nor the treatment of the surface is slightly monotonous, so that the decorative effect is insufficient. In order to enrich the color and effect of the cover plate, a traditional painting mode or other rendering modes can be adopted, however, the color is easy to fall off in such a mode, and the process is not easy to control.

At present, the sanding effect of the mobile phone backboard diaphragm mainly realizes the effect of unevenness by using a sand blasting processing mode, and the sanding effect is achieved. This approach is limited by the fineness of the grit blasting process, and it is difficult to control the smooth progression of the sanding effect from fog to transmission, and it is not possible to precisely control the haze of the frosted area to achieve a combination of different haze in a particular area.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an optics diaphragm and adoption the electronic product lid of optics diaphragm, it can make the optics diaphragm does not carry out sandblast processing and also can present the dull polish effect.

In order to achieve the above object, according to the utility model discloses an aspect, the utility model provides an optical diaphragm, optical diaphragm includes the basic unit and receives the structural layer a little. The micro-nano structure layer is arranged on one side of the base layer and comprises a first micro-nano structure unit, the first micro-nano structure unit comprises a plurality of first micro-nano substructures which are randomly arranged, each first micro-nano substructure comprises a protruding structure and/or a recessed structure, and at least one of arrangement density and arrangement patterns of the first micro-nano substructures is preset and randomly arranged.

In a preferred embodiment, the width of the first micro-nano sub-structure is 2um to 40um, and the height of the protrusion and/or the depth of the recess of the first micro-nano sub-structure is 0.1um to 5 um.

In a preferred embodiment, the first surface of the first micro-nano substructure is square, rectangular, circular, triangular, polygonal, or a combination of two or more arbitrary shapes; the transverse cross section of the first micro-nano substructure is arc-shaped, triangular, square, rectangular, trapezoidal or a combination of more than two arbitrary shapes.

In a preferred embodiment, the micro-nano structure layer further comprises a second micro-nano structure unit, the second micro-nano structure unit is an image-text structure, the image-text structure comprises a convex structure and/or a concave structure, and the first micro-nano structure unit and the second micro-nano structure unit are nested with each other.

In a preferred embodiment, the image-text structure is a lenticular lens, a microlens, a CD pattern, a wire pattern or a fresnel lens.

In a preferred embodiment, the micro-nano structure layer is any one of a photo-curing adhesive layer, a thermosetting adhesive layer, a colored photo-curing adhesive layer, a colored thermosetting adhesive layer, or a combination of at least two of the above layers.

In a preferred embodiment, the optical film further comprises a reflecting layer and a coloring layer, the reflecting layer at least covers the micro-nano structure layer, and the coloring layer is arranged on one side of the reflecting layer away from the base layer.

According to another aspect of the present invention, the present invention provides an electronic product cover. The electronic product cover body comprises a cover plate and an optical diaphragm arranged on one side of the cover plate. The optical membrane comprises a base layer and a micro-nano structure layer. The micro-nano structure layer is arranged on one side of the base layer and comprises a first micro-nano structure unit, the first micro-nano structure unit comprises a plurality of first micro-nano substructures which are randomly arranged, and the first micro-nano substructures are protruding structures and/or recessed structures.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages: in the utility model, the first micro-nano sub-structures which are randomly arranged are arranged on one side of the optical diaphragm, so that the optical diaphragm can also present the frosting effect without sand blasting; the haze of the frosted surface is controlled by setting different density. The first micro-nano sub-structure which is randomly arranged can be photoetched on an image-text structure, so that the frosting effect is increased on the effect of the original image-text structure.

Drawings

Fig. 1 is a schematic view of an optical film according to the present invention;

FIG. 2 is an enlarged schematic view of a portion of the optical film of FIG. 1;

fig. 3 is a schematic diagram of a transverse cross-sectional structure in a first micro-nano structure unit in an optical membrane of the present invention;

fig. 4 is a schematic diagram of a transverse cross-sectional structure of a second micro-nano structure unit in the optical film of the present invention;

fig. 5 is a schematic diagram of a structure of a transverse section of the optical film in which a first micro-nano structure unit and a second micro-nano structure unit are nested.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be given with reference to the accompanying drawings and preferred embodiments.

The utility model provides an optical diaphragm, it can make optical diaphragm does not carry out sandblast processing and also can present the dull polish effect.

The first embodiment is as follows: see fig. 1-3. An optical membrane 100 comprises a base layer 1 and a micro-nano structure layer 2 arranged on one side of the base layer 1, wherein the micro-nano structure layer 2 comprises a first micro-nano structure unit 210. The first micro-nano structure unit 210 comprises a plurality of first micro-nano sub-structures 211 which are randomly arranged, and each first micro-nano sub-structure 211 comprises a convex structure and/or a concave structure. The first surface of the first micro-nano sub-structure 211 can be square, rectangular, circular, triangular, polygonal, irregular, or a combination of at least two arbitrary shapes. As shown in fig. 2, at least one of the arrangement density and the arrangement pattern of the first micro-nano sub-structure 211 is preset and randomly arranged. The width of the first micro-nano sub-structure 211 is 2um to 40um, and the protruding height and/or the sunken depth of the first micro-nano sub-structure 211 is 0.1um to 5 um. The optical membrane is enabled to show a frosted effect through the randomly arranged first micro-nano sub-structures; the haze of the frosted surface can be controlled by arranging the density of the first micro-nano sub-structure 211; by arranging the patterns on the first micro-nano sub-structure 211, a certain pattern area shows a frosted effect, and other areas are not frosted; due to the arrangement density and the arrangement pattern of the first micro-nano sub-structure 211, the frosting in different pattern areas has different haze, for example, the frosting effect with gradually changed haze. Therefore, the optical diaphragm can show frosted effect without a sand blasting process.

Example two: see fig. 1-5. An optical membrane 100 comprises a base layer 1 and a micro-nano structure layer 2 arranged on one side of the base layer 1, wherein the micro-nano structure layer 2 comprises a first micro-nano structure unit and a second micro-nano structure unit 220. The first micro-nano structure unit 210 comprises a plurality of first micro-nano sub-structures 211 which are randomly arranged, and each first micro-nano sub-structure 211 comprises a convex structure and/or a concave structure; the second micro-nano structure unit 220 is an image-text structure, and the image-text structure comprises a convex structure and/or a concave structure. The first micro-nano structure unit 210 and the second micro-nano structure unit 220 are nested with each other. A second micro-nano structure unit 220 (as shown in fig. 4) may be formed on the micro-nano structure layer 2; then, a first micro-nano structure unit 210 is formed on the micro-nano structure layer 2 (as shown in fig. 3), so that the first micro-nano structure unit 210 and the second micro-nano structure unit 220 are nested with each other (as shown in fig. 5). The second micro-nano structure unit 220 may be distributed over the entire micro-nano structure layer 2, or may be only disposed in a partial region of the micro-nano structure layer 2. The image-text structure is a cylindrical lens, a micro lens, a CD pattern, a wire drawing pattern or a Fresnel lens. The frosting effect of the image-text structure is realized, the effect of the original image-text structure is kept, and the frosting effect is increased; different haze degrees are presented through the arrangement of the arrangement density of the first micro-nano sub-structure 211; by arranging the patterns on the first micro-nano sub-structure 211, a frosted effect can be achieved in a set pattern area, and the frosted effect is not achieved in other parts; through the arrangement density and the arrangement pattern of the first micro-nano sub-structure 211, the haze difference of different pattern regions, such as the frosting effect with gradually changed haze, can be realized. The base layer 1 may be a polymer, or a mixed polymer, such as PET, PVC, PC, or PMMA, or a light-curable adhesive or a heat-curable adhesive, such as UV adhesive or OCA. The micro-nano structure layer 2 can transfer the designed pattern (the micro-nano structure unit pattern which is well arranged) to the base layer 1(PET, PVC and the like) through mould pressing to form the convex-concave micro-nano structure unit 11. Of course, in other embodiments, the micro-nano structure layer 2 may also be independent of the base layer 1. The micro-nano structure layer 2 is any one of a photocuring adhesive layer, a thermocuring adhesive layer, a colored photocuring adhesive layer and a colored thermocuring adhesive layer or a combination of at least two of the photocuring adhesive layer, the thermocuring adhesive layer and the colored photocuring adhesive layer.

As shown in fig. 3 to 5, the optical film 1 may further include a reflective layer 10 and a colored layer 9. The reflective layer 10 is obtained by vacuum evaporation, magnetron sputtering or electron beam evaporation. The reflecting layer 10 at least covers the micro-nano structure layer 2, and the coloring layer 9 is arranged on one side of the reflecting layer 10 far away from the base layer 1. The coloring layer 9 obtains different colors through printing ink printing, and has different visual effects by combining the micro-nano structure layer 2.

According to another aspect of the present invention, the present invention further provides an electronic product cover, such as a cover of a smart phone, the cover can include a cover plate and the optical film sheet 100 disposed on one side of the cover plate. The cover plate may be a glass cover plate. When the optical film 100 in this embodiment is used for decorating a cover of an electronic product, the outer edge of the optical film 100 is matched with the cover plate and attached to the inner side of the cover plate, and the optical film 100 may have a frosted effect.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.

The features of the embodiments and embodiments described herein above may be combined with each other without conflict.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (8)

1. An optical film, comprising: it includes:

a base layer; and

the micro-nano structure layer is arranged on one side of the base layer and comprises a first micro-nano structure unit, the first micro-nano structure unit comprises a plurality of randomly arranged first micro-nano substructures, each first micro-nano substructure comprises a protruding structure and/or a recessed structure, and at least one of arrangement density and arrangement patterns of the first micro-nano substructures is preset and randomly arranged.

2. The optical film of claim 1, wherein:

the width of the first micro-nano sub-structure is 2um to 40um, and the height of the first micro-nano sub-structure protrusion and/or the depth of the first micro-nano sub-structure recess are 0.1um to 5 um.

3. The optical film of claim 1, wherein:

the first surface of the first micro-nano sub-structure is square, rectangular, circular, triangular, polygonal or a combination of more than two arbitrary shapes;

the transverse cross section of the first micro-nano substructure is arc-shaped, triangular, square, rectangular, trapezoidal or a combination of more than two arbitrary shapes.

4. The optical film of claim 1, wherein:

the micro-nano structure layer further comprises a second micro-nano structure unit, the second micro-nano structure unit is of an image-text structure, the image-text structure comprises a protruding structure and/or a recessed structure, and the first micro-nano structure unit and the second micro-nano structure unit are nested with each other.

5. The optical film of claim 4, wherein: the image-text structure is a cylindrical lens, a micro lens, a CD pattern, a wire drawing pattern or a Fresnel lens.

6. The optical film according to claim 1 or 4, wherein: the micro-nano structure layer is any one of a photocuring adhesive layer, a thermocuring adhesive layer, a colored photocuring adhesive layer and a colored thermocuring adhesive layer or a combination of at least two of the photocuring adhesive layer, the thermocuring adhesive layer and the colored photocuring adhesive layer.

7. The optical film according to claim 1 or 4, wherein: the optical film further comprises a reflecting layer and a coloring layer, the reflecting layer at least covers the micro-nano structure layer, and the coloring layer is arranged on one side, far away from the base layer, of the reflecting layer.

8. An electronic product cover body is characterized in that: it includes:

a cover plate;

the optical film of any one of claims 1 to 7 disposed on one side of the cover plate.

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