CN117644680A - Thermoprintable three-dimensional full-view display film and preparation method thereof - Google Patents
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Abstract
The invention provides a thermoprintable three-dimensional full-view display film and a preparation method thereof, wherein the preparation method is characterized in that arbitrary space object modeling is created by taking images and sampling in multiple angles or by computer modeling, in the manufacturing process, image-text information data and a micro-lens array are overlapped together in the digital information processing process, and are processed into templates at one time by utilizing a micro-nano manufacturing mode, so that the image-text and micro-lens array alignment procedure is omitted, the alignment error problem is avoided, the production efficiency and the yield are greatly improved, and the production cost is reduced. Meanwhile, the three-dimensional effect of stronger and more vivid effects can be added for products or information, and brand image, attraction and market competitiveness are improved. The thermoprintable three-dimensional full-view stereoscopic imaging film prepared by the method can realize full-view observation under a daily light source, has continuous space vision in vision, is vivid in imaging and has strong visual impact.
Description
Technical Field
The invention relates to the technical field of anti-counterfeiting, in particular to a thermoprintable three-dimensional full-view display film and a preparation method thereof.
Background
The stereo anti-fake film with microlens array is one new kind of technology for anti-fake.
The stereo anti-fake film with micro lens array is one innovative micro-nano technology and has special structure and optical effect to realize anti-fake effect. The microlens array is composed of a large number of micro lenses, which can change the propagation direction and optical characteristics of light during the propagation of light. By accurately designing and manufacturing the microlens array, various anti-counterfeiting effects such as three-dimensional patterns, dynamic effects, multi-angle observation and the like can be realized.
The microlens array three-dimensional anti-counterfeiting film has wide application fields, including currency, credentials, packaging materials and the like. The anti-counterfeiting and anti-counterfeiting method can effectively prevent counterfeiting and counterfeiting products, and protect interests of enterprises and rights of consumers. Meanwhile, development and application of the microlens array three-dimensional anti-counterfeiting film also promote development of micro-nano technology in the anti-counterfeiting field, and a new thought and method are provided for innovation of the anti-counterfeiting technology.
The existing microlens array stereoscopic imaging anti-counterfeiting technology mainly applies the principle of moire magnification of the microlens array to graphics context, and different imaging depth of field is realized by changing the period of the graphics context array. For example, chinese patent application publication No. CN114851745a discloses an optical anti-counterfeiting element with additive micro-relief three-dimensional structure, product and preparation method, the optical anti-counterfeiting element is formed by arranging a micro-relief three-dimensional structure layer formed by adding and superposing on one side surface of a substrate, and arranging a reflective medium layer on the surface of the micro-relief three-dimensional structure array layer, so that a unique 3D visual effect can be provided, meanwhile, the production cost is low, and the preparation method can reduce the production difficulty, simplify the process flow and further reduce the cost; the refractive index range of the optical anti-counterfeiting element is 1.3-1.7, and the moire magnification imaging quality is high; because the micro image-text layer array of the optical anti-counterfeiting element can be set to be overlapped by a plurality of images with different periods, moire images with different depths of field can be displayed in the moire amplified image, and three-dimensional moire images with upward floating, downward sinking, upward floating, staggered and downward sinking and upward floating transitional to upward floating are generated, so that the visual effect is more prominent, and the anti-counterfeiting performance is better. However, the image formed by the method has simple modes of single-layer floating, sinking and moving, and in the manufacturing process, the micro lens array and the image-text array are required to be respectively processed into films and then are subjected to counterpoint imprinting, so that the process is complex, the efficiency is low and the cost is high. The principle of the microlens array stereoscopic imaging film manufactured by the Moire imaging principle is simple, the film is well known and held by the industry, the formed stereoscopic image has obvious layering phenomenon, the film is difficult to have spatial continuity of different heights, and the stereoscopic imaging of a three-dimensional model with any modeling is difficult to realize.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a thermoprintable three-dimensional full-view display film and a preparation method thereof.
In order to achieve the technical scheme, the invention provides a preparation method of a thermoprintable three-dimensional full-view display film, which comprises the following steps:
s1, three-dimensional sampling is carried out on an object in a shooting or virtual modeling mode, and an image array P (I, J) containing all-view angle information of the object is obtained;
s2, setting a first layer convolution kernel K 1 (m, n) matrix, with a core radius (r) m ＝(m-1)/2，r n = (n-1)/2), where m, n are preferably odd, edge filling is performed on each sampled image, and the number of filled pixels is equal to the first layer convolution kernel radius;
s3, dividing each image into areas according to a unified mode, wherein each area unit uses P (I,J)(x，y) (x ', y') represents the image of the I th row and the J th column in the image array, (x, y) represents the x-th row and the y-th column of the image which are segmented, and (x ', y') represents the x '-th row and the y' -th column of the region (x, y);
s4, utilizing convolution kernel K 1 And (3) respectively convolving the (x, y) th areas in all pictures of the image array to respectively obtain:
O1 (I,J)(x，y) (x′，y′)＝∑ m ∑ n P (I，J)(x，y) (x′+m，y′+n)*K 1 (m，n)；
s5, pair O1 b(I，J)(x，y) (x ', y') pooling to obtain a first pooled layer, and mapping the first pooled layer information block coordinate system to a new coordinate system, labeled O1 b(I，J)(x，y) (x″，y″)；
S6, the information block O1 of the first pooling layer b(I，J)(x，y) (x ", y") is denoted as a data unit and is mapped to a new coordinate system, denoted O1 (x，y) (i，j)；
S7, setting a second layer convolution kernel K 2 (m ', n') matrix with a core radius (r) m′ ＝(m′-1)/2，r n′ = (n ' -1)/2), where m ', n ' are preferentially odd; for the firstPerforming edge filling on each information block of the pooling layer, wherein the number of filled data is equal to the radius of a convolution kernel of the second layer; wherein all (x, y) identical data blocks are taken as a set and are combined with a second convolution kernel K 2 And (3) carrying out convolution to obtain:
O2 (x，y) (i，j)＝∑ m′ ∑ n′ 01 (x，y) (i+m′，j+n′)*K 2 (m′，n′)；
and block O2 (x，y) (i, j) mapping to a new coordinate system, denoted O2 (x，y) (i′，j′)，O2 (x，y) (I ', J') contains the (x, y) th region information of all images in the original image array P (I, J);
s8, carrying out convolution on the information block O2 obtained by the second time (x，y) (i ', j') performing a second pooling to obtain a second pooled layer, and mapping the second pooled layer to a new coordinate system, denoted O2 (x，y) (i″，j″)；
S9, setting a gray level diagram of the micro lens unit, converting the gray level diagram into a digital matrix lambdan, and enabling the digital matrix lambdan to be matched with O2 of the second pooling layer (x，y) (i ', j') are of uniform size, and the information blocks O2 of the second pooling layer are to be pooled (x，y) And (i ', j') are respectively overlapped with the digital matrix lambdan to obtain a three-dimensional full-view information block set, namely:
O3(x，y)＝O2 (x，y) (i″，j″)+λen；
o3 (x, y) fuses the lens and the (x, y) th area information of all images in the original image array; mapping an information block O3 (x, y) coordinate system to a new coordinate system, re-marking the new coordinate system as O3 (I ', J'), arranging and splicing according to a row-column mode to obtain a full-view three-dimensional information graphic photoetching file which can be subjected to photoetching processing and mould pressing mass production at one time, and manufacturing the photoetching file into a template through micro-nano processing;
s10, manufacturing a template into a final finished product through plate making, coating, embossing, coating film and gluing.
Preferably, in the step S5, the first pooling adopts one pooling method of maximum pooling, mean pooling, random pooling, median pooling, fractional maximum pooling and combined pooling, so as to achieve data compression and enhance anti-interference performance of information.
Preferably, in the step S8, the second pooling adopts one pooling method of maximum pooling, mean pooling, random pooling, median pooling, fractional maximum pooling and combined pooling, so as to implement information stitching, fusion and data compression of the image area.
Preferably, the first layer convolution kernel K 1 (m, n) is a two-dimensional matrix of m rows and n columns, and the region extraction, smoothing or sharpening or noise reduction of the original image is achieved by convolution with the region of each image (x ', y') in the original image array.
Preferably, the second layer convolution kernel K 2 (m ', n') is a two-dimensional matrix of m 'rows and n' columns, and the (x, y) regions extracted from each image are combined, ordered and stitched by convolution with the first pooling layer.
The invention also provides a thermoprintable three-dimensional full view display film, which is characterized by comprising: a substrate layer for carrying respective coating layers applied thereon; the release layer is coated on the upper surface of the substrate layer and is used for enabling the information layer to be better transferred to a product or a product package after thermoprinting; the protective layer is coated on the upper surface of the release layer and is used for protecting the information layer from being worn; a molded information layer coated on the upper surface of the protective layer, the molded information layer being mass-stamped from the master plate manufactured by the method of any one of claims 1 to 5; the metal film layer is coated on the upper surface of the mould pressing information layer and is used for reflecting light rays and enhancing the surface brightness, chromaticity and glossiness of the mould pressing information layer; and the adhesive layer is coated on the upper surface of the metal film layer and is used for bonding the film system on the object to be hot stamped.
Preferably, the molding information layer is a micro-relief three-dimensional structure formed by overlapping image information and a lens gray pattern by using thermoplastic resin and carrying out batch imprinting by using the template prepared by the method of any one of claims 1-5, wherein the thickness is 0.5 μm-10 μm.
Preferably, the substrate layer is a stretchable polyester film with a thickness of 10-50 μm, the release layer is formed by coating with organic silicon resin with a thickness of 1-10 μm, and the protective layer is formed by coating with thermoplastic resin with a thickness of 1.5-10 μm.
Preferably, the metal film layer is made of aluminum film material, and the thickness is 0.01-0.1 mu m.
Preferably, the adhesive layer is a hot melt adhesive, and is at least one of polyacrylic adhesive, polyester adhesive, polyether adhesive, polyurethane adhesive, silane adhesive, silicone adhesive, phenolic adhesive, epoxy adhesive, and synthetic rubber, and has a thickness of 1 μm-5 μm.
The thermoprintable three-dimensional full-view display film and the preparation method thereof have the beneficial effects that:
1) The preparation method creates any space object model by shooting and sampling the real object at multiple angles or by computer modeling, and then the preparation method provided by the invention is used for preparing the thermoprintable three-dimensional full-view stereoscopic imaging film, so that full-angle observation can be realized under a daily light source, continuous space vision is realized in vision, imaging is lifelike, and strong visual impact is realized. In addition, in the manufacturing process, the image-text information data and the micro-lens array are overlapped in the digital information processing process, and the micro-nano manufacturing mode (such as photoetching) is utilized to process the micro-nano manufacturing mode into a template at one time, so that the image-text and micro-lens array alignment procedure is omitted, the alignment error problem is avoided, the production efficiency and the yield are greatly improved, and the production cost is reduced. Meanwhile, the three-dimensional effect of stronger and more vivid effects can be added for products or information, and brand image, attraction and market competitiveness are improved.
2) The three-dimensional full-view display film which can be thermoprinted and manufactured by the manufacturing method can clearly see different surfaces of an object when the film is rotated and observed around the object by 360 degrees under a daily light source, and has very strong spatial third dimension.
Drawings
FIG. 1 is a flow chart of a method for preparing a thermoprintable three-dimensional full view display film according to the present invention.
Fig. 2a is a schematic representation of a determinant arrangement of information blocks of a embossed information layer according to the present invention.
Fig. 2b is a schematic diagram of a honeycomb arrangement of compressed information layer information blocks in the present invention.
Fig. 3 is a schematic structural view of a thermoprintable three-dimensional full view display film according to the present invention.
FIG. 4 shows the display effect of the thermoprintable three-dimensional full view display film of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art without making any inventive effort are within the scope of the present invention.
Example 1: a preparation method of a thermoprintable three-dimensional full-view display film.
Referring to fig. 1, a method for preparing a thermoprintable three-dimensional full view display film specifically includes the following steps:
in the first step, three-dimensional sampling is performed on the object by means of image capturing or virtual modeling, so as to obtain a two-dimensional image array P (I, J) containing I rows and I columns of full-view angle information. The two-dimensional image array P (I, J) contains the topographical information of the object over all angles. The maximum value of I and J is determined according to actual needs, and the more the acquired image information is, the finer the finally displayed space stereoscopic image is, but the longer the time consumption is.
Second, a first layer convolution kernel K is set 1 (m, n) matrix, with a core radius (r) m ＝(m-1)/2，r n = (n-1)/2), where m, n are preferably odd. And carrying out edge filling on each sampling image, wherein the number of filled pixels is equal to the radius of the convolution kernel of the first layer. K in the present embodiment 1 Setting value K 1 (3, 3), i.e. a matrix of 3 rows and 3 columns with a core radius of 1:
third, dividing each image into regions in rows and columns, each region unit using P (1，J)(x，y) (x ', y') representsWhere (I, J) represents the I-th row and J-th column image in the image array, (x, y) represents the x-th row and y-th column region in the image, and (x ', y') represents the x '-th row and y' -th column element in the region (x, y).
Fourth step, utilizing convolution kernel K 1 Respectively convolving (x, y) th areas in all pictures of the image array to obtain a first convolution layer discrete information block set, namely:
O1 (I，J)(x，y) (x′，y′)＝∑ m ∑ n P (I，J)(x，y) (x′+m，y′+n)*K 1 (m，n)。
fifth step S5, p O1 (I，J)(x，y) (x ', y') performing first pooling to obtain a first pooled layer. For ease of identification, the first pooled layer information block coordinate system is mapped to a new coordinate system, labeled O1 (I，J)(x，y) (x″，y″)。
And the first pooling adopts one pooling method of maximum value pooling, average value pooling, random pooling, median pooling, fractional order maximum value pooling and combined pooling. The method mainly realizes data compression and enhances the anti-interference performance of information.
Sixth step, the information block O1 of the first pooling layer (I，J)(x，y) (x ", y") is denoted as a data unit, which is mapped to a new coordinate system for ease of recognition, denoted O1 (x，y) (i，j)。
Seventh step S7, setting a second layer convolution kernel K 2 (m ', n') matrix with a core radius (r) m′ ＝(m′-1)/2，r n′ = (n ' -1)/2), where m ', n ' are preferentially odd. And filling edges of each information block of the first pooling layer, wherein the filled data number is equal to the radius of the convolution kernel of the second layer. K in the present embodiment 2 Setting value K 2 (3, 3), i.e. a 3 row 3 column identity matrix with a core radius of 1:
wherein all (x, y) identical data blocks are taken as one set and convolved with a second convolutionCore K 2 And (3) carrying out convolution to obtain:
for ease of identification, the information block O2 is (x，y) (i, j) mapping to a new coordinate system, denoted O2 (x，y) (i′，j′)。O2 (x，y) (I ', J') contains the (x, y) th region information of all images in the original image array P (I, J).
Eighth step, the information block O2 obtained by the second convolution (x ， y) And (i ', j') carrying out secondary pooling to obtain a second pooling layer. For ease of identification, the second pooling layer is mapped to a new coordinate system, denoted O2 (x ， y) (i″，j″)。
And the second pooling adopts one pooling method of maximum value pooling, average pooling, random pooling, median pooling, fractional order maximum value pooling and combined pooling. The method mainly realizes information splicing, fusion and data compression of the image area.
Ninth, setting the gray level diagram of the micro lens unit, converting the gray level diagram into a digital matrix lambdan, and enabling the digital matrix lambdan to be matched with O2 of the second pooling layer (x，y) (i ', j') are of uniform size. Information block O2 of the second pooling layer (x，y) And (i ', j') are respectively overlapped with the digital matrix lambdan to obtain a three-dimensional full-view information block set, namely:
O3(x，y)＝O2 (x，y) (i″，j″)+λen
finally, O3 (x, y) fuses the (x, y) th area information of the lens and all images in the original image array.
In order to facilitate identification, the information block O3 (x, y) coordinate system is mapped to a new coordinate system, is re-marked as O3 (I ', J'), is arranged and spliced according to a row-column mode, and the full-view three-dimensional information graphic photoetching file which can be subjected to one-time photoetching processing and mould pressing mass production is obtained, and is manufactured into a template through micro-nano processing.
S10, manufacturing a template into a final finished product through plate making, coating, embossing, coating film and gluing.
In this embodiment, the first layer convolution kernel K 1 Is a 3-row 3-column two-dimensional matrix, and realizes the region extraction, smoothing or sharpening or noise reduction of the original image by convolution with the original image array. Second layer convolution kernel K 2 Is a 3-row, 3-column two-dimensional matrix, and by convolving the first pooling layer, it is achieved that the (x, y) regions extracted from each image are combined, ordered, and stitched. By modifying K 2 Elements within the core further smooth noise reduction of the data while achieving the above functions.
The preparation method of the thermoprintable three-dimensional full-view display film can be used for preparing a thermoprintable three-dimensional full-view stereoscopic imaging film by shooting and sampling objects at multiple angles or creating any space object model through computer modeling, and the preparation method provided by the invention can be used for realizing full-view observation under a daily light source, realizing continuous space vision in vision, realizing vivid imaging and having strong visual impact. In addition, in the manufacturing process, the image-text information data and the micro-lens array are overlapped in the digital information processing process, and the micro-nano manufacturing mode (such as photoetching) is utilized to process the micro-nano manufacturing mode into a template at one time, so that the image-text and micro-lens array alignment procedure is omitted, the alignment error problem is avoided, the production efficiency and the yield are greatly improved, and the production cost is reduced. Meanwhile, the three-dimensional effect of stronger and more vivid effects can be added for products or information, and brand image, attraction and market competitiveness are improved.
Example 2: a thermoprintable three-dimensional full view display film.
Referring to fig. 3, a thermoprintable three-dimensional full view display film has a structure mainly including a substrate layer 31, a release layer 32, a protective layer 33, a mold information layer 34, a metal film layer 35 and an adhesive layer 36 from bottom to top. The substrate layer 31 is made of a stretchable polyester film and is mainly used for bearing each coating thereon, and the thickness of the substrate layer is 25 mu m; the release layer 32 is coated by organic silicon resin, has good shedding performance, and has the main function of enabling the functional layers such as the mould pressing information layer 34 and the like to be better transferred to a product or a product package after thermoprinting, and the thickness of the release layer 32 is 2 mu m; the protective layer 33 and the embossed information layer 34 are made of thermoplastic resin, the thickness of the embossed information layer 34 is 5 μm, the template manufactured by the method of the embodiment 1 is embossed in batches, the structure is a micro-nano relief three-dimensional structure containing image information and lens information, and the arrangement mode of the information blocks of the embossed information layer is determinant arrangement shown in figure 2a or honeycomb arrangement shown in figure 2 b; the protective layer 33 has a thickness of 2 μm and serves to protect the embossed information layer 34 from abrasion; the metal film layer 35 is plated on the surface of the mould pressing information layer 34, plays a role in reflecting light and enhancing the brightness, chromaticity and glossiness of the surface of the information layer, and has the thickness of 0.05 mu m, and the metal film layer material can be all metal film plating materials, preferably Al materials; the adhesive layer 36 is mainly made of at least one of a polyacrylic adhesive, a polyester adhesive, a polyether adhesive, a polyurethane adhesive, a silane adhesive, a silicone adhesive, a phenolic adhesive, an epoxy adhesive, and a synthetic rubber adhesive, and has a main function of bonding the film system to the object to be hot stamped, and has a thickness of 3 μm.
The visual effect of the thermoprintable three-dimensional full-view display film provided by the invention is shown in fig. 4, different surfaces of an object can be clearly seen when the film is observed around the object in 360-degree rotation under a daily light source, and the spatial stereoscopic impression is very strong.
Example 3: a thermoprintable three-dimensional full view display film.
Referring to fig. 3, a thermoprintable three-dimensional full view display film has a structure mainly including a substrate layer 31, a release layer 32, a protective layer 33, a mold information layer 34, a metal film layer 35 and an adhesive layer 36 from bottom to top. The thickness of the base material layer 31 is 10 μm; the thickness of the release layer 32 is 1 μm; the embossed information layer 34 having a thickness of 0.5 μm was mass-embossed with the master plate manufactured by the method described in example 1, and had a micro-nano relief three-dimensional structure including image information and lens information, and the embossed information layer had a honeycomb arrangement of information blocks as shown in fig. 2 b; the protective layer 33 has a thickness of 1.5 μm; the thickness of the metal film layer 35 is 0.01 mu m, and the metal film layer 35 adopts a dielectric coating with high refractive index; the adhesive layer 36 has a thickness of 1 μm. The other technical features are the same as those of example 2.
Example 4: a thermoprintable three-dimensional full view display film.
Referring to fig. 3, a thermoprintable three-dimensional full view display film has a structure mainly including a substrate layer 31, a release layer 32, a protective layer 33, a mold information layer 34, a metal film layer 35 and an adhesive layer 36 from bottom to top. The thickness of the base material layer 31 is 50 μm; the release layer 32 had a thickness of 10 μm: the embossed information layer 34 has a thickness of 10 μm; the protective layer 33 has a thickness of 10 μm; the thickness of the metal film layer 35 is 0.1 μm; the adhesive layer 36 has a thickness of 5 μm. The other technical features are the same as those of example 2.
The foregoing is a preferred embodiment of the present invention, but the present invention should not be limited to the embodiment and the disclosure of the drawings, so that the equivalents and modifications can be made without departing from the spirit of the disclosure.
Claims (10)
1. The preparation method of the thermoprintable three-dimensional full-view display film is characterized by comprising the following steps of:
s1, three-dimensional sampling is carried out on an object in a shooting or virtual modeling mode, and an image array P (I, J) containing all-view angle information of the object is obtained;
s2, setting a first layer convolution kernel K 1 (m, m) matrix, with a core radius (r) m ＝(m-1)/2,r n = (n-1)/2), where m, n are preferably odd, edge filling is performed on each sampled image, and the number of filled pixels is equal to the first layer convolution kernel radius;
s3, dividing each image into areas according to a unified mode, wherein each area unit uses P (I,J)(x,y) (x ', y') represents the image of the I th row and the J th column in the image array, (x, y) represents the x-th row and the y-th column of the image which are segmented, and (x ', y') represents the x '-th row and the y' -th column of the region (x, y);
s4, utilizing convolution kernel K 1 And (3) respectively convolving the (x, y) th areas in all pictures of the image array to respectively obtain:
O1 (I,J)(x,y) (x′,y′)＝∑ m ∑ n P (I，J)(x，y) (x′+m,y′+n)*K 1 (m,n)；
S5、for O1 (I,J)(x,y) (x ', y') pooling to obtain a first pooled layer, and mapping the first pooled layer information block coordinate system to a new coordinate system, labeled O1 (I,J)(x,y) (x”,y”)；
S6, the information block O1 of the first pooling layer (I,J)(x,y) (x ", y") is denoted as a data unit and is mapped to a new coordinate system, denoted O1 (x,y) (i,j)；
S7, setting a second layer convolution kernel K 2 (m ', n') matrix with a core radius (r) m' ＝(m'-1)/2,r n' = (n ' -1)/2), where m ', n ' are preferentially odd; performing edge filling on each information block of the first pooling layer, wherein the number of filled data is equal to the radius of the convolution kernel of the second layer; wherein all (x, y) identical data blocks are taken as a set and are combined with a second convolution kernel K 2 And (3) carrying out convolution to obtain:
O2 (x,y) (i,j)＝∑ m' ∑ n' O1 (x,y) (i+m′,j+n′)*K 2 (m′,n′)；
and block O2 (x,y) (i, j) mapping to a new coordinate system, denoted O2 (x,y) (i',j')，O2 (x,y) (I ', J') contains the (x, y) th region information of all images in the original image array P (I, J);
s8, carrying out convolution on the information block O2 obtained by the second time (x,y) (i ', j') performing a second pooling to obtain a second pooled layer, and mapping the second pooled layer to a new coordinate system, denoted O2 (x,y) (i”,j”)；
S9, setting a gray level diagram of the micro lens unit, converting the gray level diagram into a digital matrix len, and enabling the digital matrix len to be matched with O2 of the second pooling layer (x,y) (i ', j') are of uniform size, and the information blocks O2 of the second pooling layer are pooled (x,y) And (i ', j') are respectively overlapped with the digital matrix len to obtain a three-dimensional full-view information block set, namely:
O3(x,y)＝O2 (x,y) (i″,j″)+len；
o3 (x, y) fuses the lens and the (x, y) th area information of all images in the original image array; mapping an information block O3 (x, y) coordinate system to a new coordinate system, re-marking the new coordinate system as O3 (I ', J'), arranging and splicing according to a row-column mode to obtain a full-view three-dimensional information graphic photoetching file which can be subjected to photoetching processing and mould pressing mass production at one time, and manufacturing the photoetching file into a template through micro-nano processing;
s10, manufacturing a template into a final finished product through plate making, coating, embossing, coating film and gluing.
2. The method for preparing the thermoprintable three-dimensional full view display film according to claim 1, wherein: and in the step S5, the first pooling adopts one pooling method of maximum value pooling, average pooling, random pooling, median pooling, fractional order maximum value pooling and combined pooling, and is used for realizing data compression and enhancing the anti-interference performance of information.
3. The method for preparing the thermoprintable three-dimensional full view display film according to claim 1, wherein: and in the step S8, the second pooling adopts one pooling method of maximum pooling, mean pooling, random pooling, median pooling, fractional order maximum pooling and combined pooling, and is used for realizing information splicing, fusion and data compression of the image area.
4. The method for preparing the thermoprintable three-dimensional full view display film according to claim 1, wherein: the first layer convolution kernel K 1 (m, n) is a two-dimensional matrix of m rows and n columns, and the region extraction, smoothing or sharpening or noise reduction of the original image is achieved by convolution with the region of each image (x ', y') in the original image array.
5. The method for preparing the thermoprintable three-dimensional full view display film according to claim 1, wherein: the second layer convolution kernel K 2 (m ', n') is a two-dimensional matrix of m 'rows and n' columns, and the (x, y) regions extracted from each image are combined, ordered and stitched by convolution with the first pooling layer.
6. A thermoprintable three-dimensional full viewing angle display film, comprising:
a substrate layer for carrying respective coating layers applied thereon;
the release layer is coated on the upper surface of the substrate layer and is used for enabling the information layer to be better transferred to a product or a product package after thermoprinting;
the protective layer is coated on the upper surface of the release layer and is used for protecting the information layer from being worn;
a molded information layer coated on the upper surface of the protective layer, the molded information layer being mass-stamped from the master plate manufactured by the method of any one of claims 1 to 5;
the metal film layer is coated on the upper surface of the mould pressing information layer and is used for reflecting light rays and enhancing the surface brightness, chromaticity and glossiness of the mould pressing information layer;
and the adhesive layer is coated on the upper surface of the metal film layer and is used for bonding the film system on the object to be hot stamped.
7. The thermoprintable three-dimensional full view display film of claim 6, wherein: the mould pressing information layer is a micro-relief three-dimensional structure formed by overlapping image information and a lens gray level graph and obtained by batch stamping by using thermoplastic resin and adopting the template prepared by the method of any one of claims 1-5, and the thickness is 0.5 mu m-10 mu m.
8. The thermoprintable three-dimensional full view display film of claim 6, wherein: the substrate layer is made of a stretchable polyester film, the thickness of the substrate layer is 10-50 mu m, the release layer is made of organic silicon resin, the thickness of the release layer is 1-10 mu m, the protective layer is made of thermoplastic resin, and the thickness of the protective layer is 1.5-10 mu m.
9. The thermoprintable three-dimensional full view display film of claim 6, wherein: the metal film layer is made of aluminum film material, and the thickness is 0.01-0.1 mu m.
10. The thermoprintable three-dimensional full view display film of claim 6, wherein: the adhesive layer adopts a hot melt adhesive, and is at least one of polyacrylic adhesive, polyester adhesive, polyether adhesive, polyurethane adhesive, silane adhesive, silicone adhesive, phenolic adhesive, epoxy adhesive and synthetic rubber, and the thickness is 1-5 μm.
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