WO2017206724A1 - 装饰片、电子设备盖板以及电子设备 - Google Patents

装饰片、电子设备盖板以及电子设备 Download PDF

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Publication number
WO2017206724A1
WO2017206724A1 PCT/CN2017/084915 CN2017084915W WO2017206724A1 WO 2017206724 A1 WO2017206724 A1 WO 2017206724A1 CN 2017084915 W CN2017084915 W CN 2017084915W WO 2017206724 A1 WO2017206724 A1 WO 2017206724A1
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WO
WIPO (PCT)
Prior art keywords
layer
decorative sheet
sub
sheet according
graphic
Prior art date
Application number
PCT/CN2017/084915
Other languages
English (en)
French (fr)
Inventor
高育龙
申溯
Original Assignee
昇印光电（昆山）股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201610382015.8A external-priority patent/CN107454778B/zh
Application filed by 昇印光电（昆山）股份有限公司 filed Critical 昇印光电（昆山）股份有限公司
Publication of WO2017206724A1 publication Critical patent/WO2017206724A1/zh
Priority to US16/205,153 priority Critical patent/US11454742B2/en

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Classifications

    • 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
    • G02B1/14—Protective coatings, e.g. hard coatings
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/09—Multifaceted or polygonal mirrors, e.g. polygonal scanning mirrors; Fresnel mirrors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/10—Mirrors with curved faces
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H05K5/0243—Mechanical details of casings for decorative purposes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/03—Covers

Definitions

  • the present invention relates to the field of optical films, and more particularly to a decorative sheet, an electronic device cover, and an electronic device.
  • the decorative sheet in the prior art generally adopts the technique of gravure printing, that is, a graphic structure layer of a pattern or a character is printed inside the film, thereby reflecting various patterns or metal textures.
  • the graphic structure layer produced by the gravure printing technology is generally a planar structure, and the stereoscopic effect is not exhibited.
  • the resolution of the graphic structure layer made by gravure printing technology is relatively poor, so that the displayed graphic is not clear.
  • the user can see a clearer and brighter graphic.
  • brightening ink is generally used in gravure printing or blazed crystal is added in the graphic structure layer, so that the graphic of the device film will appear bright and conspicuous, but there will be certain processing difficulty and materials in the preparation process. Waste, to a certain extent increase costs. Brightening the ink can also pollute the environment.
  • the above materials are used to increase the sharpness and brightness of the graphic. The longer the time, the greater the degree of oxidation of the material, and the sharpness and brightness of the graphic will be relatively decreased over time.
  • an object of the present invention is to provide a decorative sheet for forming a stereoscopic image to represent a solid object, the decorative sheet comprising a transparent protective layer, a graphic structure layer and a reflective layer;
  • the reflective layer is located on the same side of the transparent protective layer;
  • the graphic structural layer includes a plurality of sub-texture blocks forming a stereoscopic image, and each of the sub-graphics blocks includes a microstructure that characterizes the brightness of the corresponding solid object.
  • the microstructure characterization of the corresponding darkness of the solid object to the light reflected or refracted by the sub-image block is characterized by the microstructure characterization of the corresponding darkness of the solid object to the light reflected or refracted by the sub-image block.
  • each of the sub-texture blocks represents a brightness corresponding to the solid object based on a position of the light source.
  • each of the sub-text blocks represents a corresponding darkness of the solid object based on a position of the recipient.
  • the graphic structure layer forms one or two of the brightness of the image and the size, shape, spacing, period, height, arrangement density, material or angle with the horizontal direction of each of the sub-image blocks. Combination related.
  • the graphic structure layer forms an arrangement of one or more of the brightness of the image and the angle, the pitch, the period, the shape, the height, the arrangement density, the material and the horizontal direction of the microstructure. Combination related.
  • the change in brightness of the image formed by each of the sub-text blocks conforms to the change in brightness of the solid object.
  • the microstructures in at least two of the sub-image blocks are different from the horizontal direction, and a dynamic continuous solid physical map is obtained. image.
  • the microstructure is a convex structure and/or a concave structure.
  • the sub-picture block includes a plurality of the same microstructures.
  • the sub-text block has a longest radius of less than 100 ⁇ m; or the sub-picture block has a longest radius of less than 80 ⁇ m; or the sub-picture block has a longest radius of less than 50 ⁇ m.
  • the transverse cross-sectional shape of the sub-text block includes a circle, a triangle, a square, a rectangle, and an irregular polygon;
  • the transverse cross-sectional shape of the microstructure includes a circle, a triangle, a square, a rectangle, and an irregular polygon.
  • the arrangement of the plurality of microstructures forms an image
  • the change between the plurality of microstructures characterizes the light and dark variations of the image
  • the change in one or more of the size, shape, spacing, period, height, arrangement density, material or angle with the horizontal direction of the microstructure characterizes the brightness of the image.
  • the gradation value of the solid object at a predetermined angle corresponds to the setting of the complex micro structure, and one gradation value corresponds to a microstructure, the gray value is the same, the microstructure is the same, and the gray value is different. .
  • the spacing between two sub-text blocks in the immediate vicinity is between 0 and 200 ⁇ m; or the spacing between two sub-image blocks in the immediate vicinity is between 0 and 50 ⁇ m.
  • the graphic structure layer is disposed between the transparent protective layer and the reflective layer.
  • the graphic structure layer has one side of the microstructure facing the transparent protective layer.
  • an adhesive layer is further disposed between the transparent protective layer and the graphic structure layer.
  • the decorative sheet further comprises a carrier layer disposed on one side of the carrier layer and a polymer layer disposed on the polymer layer.
  • the reflective layer is located between the transparent protective layer and the graphic structure layer.
  • the reflective layer is located between the carrier layer and the polymer layer.
  • the decorative sheet comprises a colored layer, and the colored layer is disposed on a surface of the reflective layer.
  • the decorative sheet comprises a colored layer disposed between the polymer layer and the carrier layer.
  • the present invention also provides an electronic device cover plate on which the decorative sheet as described above is disposed.
  • the present invention also provides an electronic device having an electronic device cover as described above.
  • the electronic device comprises consumer electronics and home appliances.
  • a decorative sheet provided by the present invention includes a graphic structure layer, the graphic structure layer includes a plurality of sub-text blocks, and the sub-picture block includes a plurality of microstructures.
  • the micro-structural parameters between the sub-picture blocks are different, so that the brightness of the light emitted by each sub-picture block including the micro-structure is different, so that the sub-picture block has a light and dark change, and the sub-picture block is The difference between light and dark to characterize the light and dark changes of the solid object in the natural state, so that the graphic displayed on the graphic structure layer has a three-dimensional effect.
  • a decorative sheet provided by the present invention which adjusts the microstructure parameters in the sub-picture block on the decorative sheet to make the graphic structure
  • the brightness of the layer orientation is enhanced, and the viewer can view the text at different viewing angles, and can present graphics with different brightness.
  • a decorative sheet provided by the present invention wherein the graphic structure layer of the decorative sheet is composed of sub-picture blocks, and the graphic image displayed by the graphic structure layer is provided by adjusting the arrangement density and the diameter of the sub-picture block. Higher resolution. Observers can see clearer pictures from any angle, and the pictures have a continuous and three-dimensional effect, giving the viewer a sense of realism and achieving a better decorative effect.
  • a decorative sheet provided by the present invention uses a microstructure to adjust the brightness of the graphic, eliminating the need for brightening ink or other materials, saving cost, and not polluting the environment.
  • 1a is a schematic view showing the structure of a micro-structured graphic in a decorative sheet according to the present invention
  • FIG. 1b is a schematic enlarged view showing a structure of a microstructured graphic structure in a decorative sheet according to the present invention
  • FIG. 2a is a schematic view showing another micro-structured graphic structure in a decorative sheet according to the present invention.
  • FIG. 2b is a partially enlarged schematic view showing another microstructured graphic structure in a decorative sheet according to the present invention.
  • 2c is a schematic diagram of another sub-block in another micro-structured graphic structure in a decorative sheet according to the present invention.
  • Figure 3 is a schematic view of the microstructure of the present invention.
  • Figure 4 is a schematic view showing still another structure of the microstructure of the present invention.
  • Figure 5 is a schematic view showing still another structure of the microstructure of the present invention.
  • Figure 6 is a schematic view showing still another structure of the microstructure of the present invention.
  • FIGS. 7a-7e are schematic diagrams showing the structure of a sub-block of the present invention.
  • 8a-8g are schematic diagrams showing the relationship between structural parameters and gray values of microstructures in a sub-block of the present invention.
  • FIG. 9 is a schematic structural view of a cover plate of an electronic device according to the present invention.
  • Figure 10 is a schematic structural view of a decorative sheet of the present invention.
  • Figure 11 is a schematic view showing another structure of a decorative sheet of the present invention.
  • Figure 12 is a schematic view showing another structure of a decorative sheet of the present invention.
  • Figure 13 is a schematic view showing another structure of a decorative sheet of the present invention.
  • Figure 14 is a schematic view showing another structure of a decorative sheet of the present invention.
  • Figure 15 is a schematic view showing another structure of a decorative sheet of the present invention.
  • Figure 16 is a schematic view showing another structure of a decorative sheet of the present invention.
  • Figure 17 is a schematic view showing another structure of a decorative sheet of the present invention.
  • FIG. 18 is a schematic view showing the structure of a microstructure duty ratio in a decorative sheet according to the present invention.
  • FIG. 19 is a schematic diagram showing the principle of dynamic effects of graphics in a decorative sheet according to the present invention.
  • the invention discloses a decorative piece for forming a stereoscopic image to represent a solid object.
  • the decorative sheet includes a transparent protective layer 51, a graphic structure layer and a reflective layer 41; the graphic structure layer and the reflective layer 41 are located on the same side of the transparent protective layer 51; the graphic structural layer includes a formation A plurality of sub-text blocks 20 of the stereoscopic image, each sub-text block 20 including a microstructure 31 that characterizes the brightness of the corresponding solid object.
  • the decorative sheet can be used to display characters or patterns having a stereoscopic effect.
  • the decorative sheet includes a graphic structure 10.
  • the stereoscopic "SOE” can be displayed on the graphic structure 10. From the perspective perpendicular to the paper surface, the word “SOE” gives the viewer a visual effect with a stereoscopic effect by changing the brightness of the different regions of the self. Please refer to FIG. 1b for details.
  • the figure is a plane enlarged view 11 of "E" in the word "SOE”.
  • the enlarged figure 11 includes a plurality of sub-text blocks 20, and different sub-picture blocks 20 can be displayed according to the need. And have different shades. Referring to FIG. 1a and FIG.
  • the sub-picture block 20 of the highest line of the word "E" in FIG. 1b is darker than the sub-picture block 20 of the adjacent line, so that the stereo effect as shown in FIG. 1a can be displayed, and other areas can be displayed.
  • the sub-picture block 20 is similar and will not be described here.
  • the resolution or the definition of the picture is related to the density and arrangement of the pixels.
  • the sub-text block 20 can be similar to a pixel point, and the denser the sub-picture block 20 is arranged, the clearer the picture on the decorative piece is displayed.
  • the spacing between two sub-text blocks 20 in the immediate vicinity may be between 0 and 100 ⁇ m.
  • the pitch may range between 0 and 50 ⁇ m.
  • the pitch may also be 5 ⁇ m, 10 ⁇ m, 15 ⁇ m, 20 ⁇ m, 25 ⁇ m, 30 ⁇ m or 40 ⁇ m.
  • the present application does not specifically limit the spacing between adjacent sub-text blocks 20, and the spacing can be determined according to the resolution required by the graphics and the continuity of the graphics.
  • the adjacent sub-text blocks 10 may also have no spacing between them, so that the graphic structure layer can display clearer graphics.
  • the brightness of the image formed by the graphic structure layer is related to the arrangement density, and also to each of the sub-picture blocks.
  • the brightness is related to factors such as the angle, intensity, and quantity of light incident into the viewer's eye.
  • Figures 7a-7e are transverse cross-sectional views of sub-text block 20 having different shapes.
  • the transverse cross-sectional shape of the sub-text block 20 includes a circle, a triangle, a square, a rectangle, and an irregular polygon.
  • the brightness of the image formed by the sub-text block 20 is changed by setting the sub-text block 20 of different shapes.
  • Figures 7a-7e may also be transverse cross-sectional views of microstructures 31 (microstructures 33).
  • the transverse cross-sectional shape of the microstructure 31 (microstructure 33) includes a circle, a triangle, a square, a rectangle, and an irregular polygon.
  • the brightness of the image formed by the microstructure 31 (the microstructure 33) is varied by providing the microstructures 31 (microstructures 33) of different shapes.
  • the change in brightness of the image formed by each of the sub-text blocks of 20 is in accordance with the change of the solid object.
  • the shading is a different representation of the light entering the human eye by the microstructures 31 in each sub-text block 20.
  • the incident light (received light) of each sub-text block 20 is the same, except that the light is made due to the different parameters of the microstructure 31 in each sub-text block 20.
  • the angles of reflection or refraction are different, so the number of rays emitted by the human eye to receive each sub-text block 20 at a fixed position is also different, so the difference in brightness is different.
  • sub-text block 22 includes a number of microstructures 31 (not shown).
  • the microstructures 31 can be used to refract or reflect the light received by the sub-block 22 to emit light.
  • the observer's perception of lightness is the angle and intensity of light incident through the observer's eye.
  • the angle and intensity of the light incident into the viewer's eye is varied by changing the parameters of the microstructure 31 such that the sub-text block 22 including the microstructure 31 has a different brightness.
  • the sub-picture block 22 includes a plurality of identical microstructures.
  • a decorative sheet provided by the present invention has different parameters of the microstructure 31 between the respective sub-text blocks 20.
  • the angles and the intensity of the reflected light of the different microstructures 31 are different, so that the brightness of the light emitted by each sub-text block 20 including the microstructure 31 is different, and further
  • the sub-text block 20 is made to have a light and dark change.
  • the light and dark changes existing in the natural state are represented by the light and dark changes between the sub-text blocks 20, so that the graphics displayed on the graphic structure layer have a stereoscopic effect.
  • FIG. 2a is a planar image of a stereoscopic effect with a naturally formed water wave surface.
  • This stereoscopic image can be used for the appearance of electronic products such as mobile phones and computers.
  • the plan view of the stereoscopic effect includes at least the dark area of the area on the map, the area 2 on the map is the transition area, and the bright area of the 3 areas on the map, wherein the 1st, 2nd, and 3th areas are continuous, that is, the light and dark are present.
  • a gradual process which in turn visually presents a three-dimensional effect.
  • FIG. 2b an enlarged view of a portion 2 of FIG. 2a is illustrated.
  • the figure is composed of a plurality of sub-text blocks 21, and the sub-picture block 21 is similar in function and structure to the sub-picture block 20 described above, for the sake of expression. It is convenient to use different labels.
  • the 1 area is a dark area
  • the sub-picture blocks 21 in the 1 area are relatively sparse, that is, the arrangement density of the sub-picture blocks 21 is small; and the diameter of the single sub-picture block 21 is smaller. Small, which in turn makes the area relatively dark.
  • zone 3 is bright region.
  • the sub-picture blocks 21 in the area are arranged more closely and the diameter of the single sub-text block 21 is larger, so that the sub-picture block 21 of the area can reflect more optics into the observer's eyes, making the viewer feel
  • the area is brighter.
  • the longest radius of the sub-text block 21 may be less than 100 ⁇ m.
  • the longest radius is defined as the circle of the smallest radius through which the sub-text block 21 can pass.
  • the sub-graphic block 21 has a longest radius of less than 80 ⁇ m. More preferably, the sub-graphic block 21 has a longest radius of less than 50 ⁇ m.
  • the present application does not specifically limit the longest radius of the sub-picture block 21, and the radius can be specifically selected according to the effect that the actual picture needs to be displayed.
  • FIG. 2c is an enlarged view of a portion of the area of FIG. 2a.
  • the graphic is composed of a number of other seed graphic blocks 22.
  • the size of the sub-picture block 22 may range from 2 to 500 um, or between 10 and 300 ⁇ m, or between 20 and 150 ⁇ m, and may be between 30 and 100 ⁇ m.
  • the sub-text block 22 has different angles depending on the brightness and darkness on FIG. 2a.
  • the angles between the sub-text blocks 22 may be different. Then, as the angle of the observer changes, the sub-picture block 22 having the same angle enters the observer's field of view, so that the observer's angle is changing. A visual difference in the movement of the text is generated, thereby obtaining a dynamic continuous solid object image.
  • the angles between the different sub-text blocks 22 are different, so that different sub-picture blocks 22 have different light and dark changes, so that the pictures have a three-dimensional effect.
  • each of the sub-text blocks 22 can emit light based on the position of the light source such that the sub-picture block 22 based on the position illuminated by the light source appears brighter relative to the sub-picture block 22 not illuminated by the light source. .
  • the position of the light source is different from the position of the light source, and the angles and the intensity of the different sub-image blocks 22 reflected in the observer's eyes are different, so that the sub-picture blocks 22 having different angles have different brightness and darkness. As shown in FIG.
  • the sub-picture block 22 is issued based on the position of the light source. Optics makes the light appear brighter and gives the viewer a physical effect.
  • each of said sub-text blocks 22 can emit light based on the location of the recipient.
  • the sub-text block 22, which corresponds to the position of the recipient, can emit light or relatively more light.
  • the brightness of the orientation of the graphic structure layer is enhanced.
  • the area observed by the observer can emit light or relatively more light, so that the observer can observe the bright graphic.
  • the light reflected by the microstructure 31 can also be moved in the visual sense of the people, thereby giving people a feeling that the graphic is a dynamic effect.
  • the observer can observe the graphic with brightness in a certain direction. No need to use brightening ink or other materials to achieve the effect of directional brightening, which saves costs and is environmentally friendly.
  • the change rate of the image formed by the graphic structure layer changes according to the position of the receiver or the light source conforms to the visual effect parameter of the solid object, thereby characterizing the solid object.
  • the darkness can be characterized by the gray value.
  • the gradation value of the image structure layer forms an angle between the gradation value of the image and the size, pitch, period, shape, height, arrangement density, material, and horizontal direction of the microstructure 31 (microstructure 33).
  • One or two or more permutations and combinations are related.
  • Figures 8a-8g are the relationship between the partial parameters and the gray values described above.
  • the parameters of the microstructure 31 correspond to the gray value of the graphic, so that the sub-picture block 22 including the microstructure 31 has different brightness and darkness, thereby making the graphic structure
  • the graphics on the layer and the stereo effect are the relationship between the partial parameters and the gray values described above.
  • the gray scale data of each region of the physical object is obtained by analyzing the physical object.
  • the parameters of the microstructures 31 of the respective sub-picture blocks 22 are correspondingly set such that the sub-picture blocks 22 including the microstructures 31 have different shades, thereby achieving a stereoscopic effect.
  • the height of the microstructure 31 is set according to the gray value, and the height of the microstructure 31 of each sub-block 22 is uniform, and the height value represents the gray level of the region corresponding to the real object, and each sub-image block 22 has a different The height, in turn, achieves a change in brightness and darkness, ultimately achieving a three-dimensional effect.
  • the gray value of the microstructure 31 is positively correlated with the angle between the horizontal directions.
  • the gradation value is 0 to 255
  • the angle in the horizontal direction is 0 to 90°.
  • the larger the angle of the microstructure 31 with respect to the horizontal direction the larger the gray value corresponding to the microstructure 31, and the darker the sub-text block 22 including the microstructure 31.
  • the gray value of the microstructure 31 is related to the arrangement period of the microstructure, and the gray value of the microstructure 31 increases as the period increases.
  • the microstructures 31 are raised structures and/or recessed structures.
  • the microstructure 31 can be a lens.
  • the lens includes a reflective surface.
  • the corresponding reflecting surfaces are also convex structures and/or recessed structures, so that the angles of the reflected light rays incident on the light having different reflecting surfaces are different.
  • FIG. 3 and FIG. 10 is a cross-sectional view of the structural layer of the graphic, and the structural layer may be disposed between the transparent protective layer 51 and the reflective layer 41.
  • the graphic structure layer includes the microstructure 31, and the graphic structure layer having one side of the microstructure 31 faces the transparent protective layer 51, so that the observer can observe the microstructure 31 through the transparent protective layer 51, and then observe the microstructure 31.
  • the formed three-dimensional graphic is a cross-sectional view of the structural layer of the graphic, and the structural layer may be disposed between the transparent protective layer 51 and the reflective layer 41.
  • the graphic structure layer includes the microstructure 31, and the graphic structure layer having one side of the microstructure 31 faces the transparent protective layer 51, so that the observer can observe the microstructure 31 through the transparent protective layer 51, and then observe the microstructure 31.
  • the formed three-dimensional graphic is a cross-sectional view of the structural layer of the graphic, and the structural layer may be disposed between the transparent protective layer 51 and the reflective layer 41.
  • the graphic structure layer includes the micro
  • the structural layer further includes a carrier 30 or substrate 30.
  • the carrier 30 or substrate 30 has a first surface and a second surface.
  • the microstructures 31 are disposed on the first surface of the carrier 30 or the substrate 30.
  • the microstructures 31 may be disposed on the first surface by bonding or integral molding, and may be arranged at a predetermined position on the first surface according to actual graphic parameters.
  • the application is not limited to the above-described setting manner, and the setting manner of the microstructure 31 can be selected according to actual needs.
  • FIG. 6 there is shown another layer of graphic structure comprising a polymer layer 32 and a microstructure 31.
  • the microstructures 31 can be convex and similar to the microstructures 31 of FIG.
  • the microstructures 31 of Figure 6 are integral with the polymer 32 and are formed directly onto the polymer 32 by embossing or other means.
  • the polymer 32 is a heat curing glue or a light curing glue. This application does not specifically limit the material of the polymer layer 32.
  • FIG. 4 is a cross-sectional view of another structural layer including a polymer layer 32 and a microstructure 33.
  • the microstructures 33 may be integral with the polymer layer 32, i.e., formed directly on the polymer layer 32 by embossing or other means.
  • the difference between FIG. 4 and FIG. 6 lies in the difference of the microstructures 31.
  • the microstructures 31 are concave, that is, the width of the bottom of the microstructures 31 is smaller than the width of the openings. In turn, it is ensured that the microstructure has a wider and larger area of the reflecting surface, so that the transmission of light has a larger angle and range.
  • FIG. 3 and FIG. 4 have the same functional effects as the microstructure 31 and the microstructure 33, and are used to display different grays. Degree value.
  • the different reference numerals are used here for the sake of easier description and have no particular influence on the structure of the product.
  • the structural layer of FIG. 4 is formed on the carrier 30 or the substrate 30.
  • the polymer layer 32 is disposed on one side of the carrier 30 or the substrate 30, and then a recessed structure is formed on the polymer layer 32 by embossing or other means to form the microstructure 33.
  • the microstructure 33 having a recessed structure adopts a width of the opening larger than the width of the bottom portion, thereby ensuring that the microstructure has a wider and larger area of the reflecting surface, so that the transmission of light has a larger angle and range.
  • a decorative sheet includes a transparent protective layer 51, an adhesive layer 52, a carrier 30 or a substrate 30, a reflective layer 41, and a colored layer 42 (or a primer layer). ).
  • the transparent protective layer 51 includes a first surface and a second surface disposed opposite the first surface.
  • the graphic structure layer and the reflective layer 41 are located on one side of the second surface of the transparent protective layer 51.
  • the microstructures 31 may be recessed structures. Wherein, there is a change in brightness and/or color between the microstructures 31, so that the graphic has a three-dimensional effect.
  • the microstructure 31 is disposed on one side of the polymer 32 and away from the side of the transparent protective layer 51.
  • the reflective layer 41 is disposed on the surface of the microstructure 31, and the reflective layer 41 is provided with a colored layer 42 on its surface.
  • the transparent protective layer 51 is connected to the carrier or substrate 30 by an adhesive layer 52.
  • the bonding layer 52 can be an OCA or other transparent gel-like object.
  • an adhesive layer 52 is further disposed between the transparent protective layer 51 and the graphic structure layer.
  • the figure is a structural view of a decorative sheet of another structure including a transparent protective layer 51, an adhesive layer 52, a reflective layer 41, and a colored layer 42.
  • the graphic structure layer comprises a polymer layer 32 (not shown) and a microstructure 31.
  • the microstructures 31 are disposed on the side of the polymer layer 32 (not shown) away from the transparent protective layer 51.
  • the reflective layer 41 is disposed on a surface of the microstructure 31.
  • the surface of the reflective layer 41 may be provided with a colored layer 42.
  • the transparent protective layer 51 and the polymer layer 32 (not shown) are connected by the adhesive layer 52, so that the transparent protective layer 51 and the polymer layer can be better bonded.
  • the bonding layer 52 can be an OCA or other transparent gel-like object.
  • FIG. 12 and FIG. 11 is a structural diagram of another decorative sheet.
  • the polymer layer 32 (not shown) is directly formed on the side of the transparent protective layer 51 without Bonding layer 52.
  • the microstructure 31 is away from the transparent protective layer 51, and other structures are referred to FIG. 11 and will not be described again.
  • FIG. 13 is a structural diagram of another decorative sheet, including a transparent protective layer 51, an adhesive layer 52, a graphic structural layer and a reflective layer 41.
  • the graphic structural layer includes a carrier 30 and a polymer layer. 32 (not shown), a polymer layer 32 is formed on the surface of the carrier or substrate 30.
  • a microstructure 31 is provided on a side of the polymer layer 32 remote from the carrier 30 or substrate 30. The microstructure 31 faces the transparent protective layer 51 and is connected to the transparent protective layer 51 through the adhesive layer 52.
  • the bonding layer 52 is a plane, and there is no change in light, so that no graphic is generated, so the bonding layer 52 and the There is a refractive index difference between the graphic structure layers, and the refractive index difference is greater than 0.05.
  • the reflective layer 41 is located on the side of the carrier or substrate 30 remote from the polymer layer 32.
  • the position of the reflective layer 41 is adjusted based on the decorative sheet of FIG. 13, and the reflective layer 41 is located between the polymer layer 32 and the carrier 30 or the substrate 30.
  • the transparent protective layer 51 in FIGS. 10 to 14 may be glass, PET, PC, PMMA or the like.
  • the PET, PC, and PMMA may be provided with a hard coat on the side facing the user to improve the scratch resistance of the transparent protective layer, thereby improving the service life of the decorative sheet.
  • the carrier 30 or substrate 30 may be one or a combination of PET, PC, PMMA or metal.
  • another structural decorative sheet includes a transparent protective layer 51, a reflective layer 41 and a graphic structural layer, wherein the graphic structural layer comprises a carrier 30 or a substrate 30, a colored layer 42 and an aggregate.
  • Object layer 32 The colored layer 42 is disposed on the carrier or substrate 30.
  • the polymer layer 32 is provided on the colored layer 42.
  • a side of the polymer layer 32 away from the colored layer 42 is provided with a microstructure 31.
  • the reflective layer 41 is disposed on the surface of the microstructure 31.
  • the transparent protective layer 51 is disposed on the surface of the reflective layer 41.
  • the transparent protective layer 51 may be a hardened layer or a scratch resistant layer.
  • the surface of the decorative sheet shown in Fig. 15 is provided with micro-protrusions so that the upper portion of the decorative sheet is specularly reflected and the graphic inside the decorative sheet cannot be seen, but there is no obvious or no convexity on the touch.
  • FIG. 16 is a decorative sheet which is improved according to actual needs on the basis of the decorative sheet of FIG. 15 , and the difference is that the transparent protective layer 51 in FIG. 16 is a mirror-like and flat protective structure, which is not included in FIG. 15 .
  • Raised transparent protection structure The present application does not specifically limit the structure of the outer surface of the transparent protective layer 51, and can be selected according to actual needs.
  • another structural decorative sheet includes a transparent protective layer 51 and a graphic structure layer.
  • the graphic structure layer comprises a carrier 30 or a substrate 30, a colored layer 42 and a polymer layer 32.
  • the colored layer 42 is disposed on the carrier or substrate 30.
  • the polymer layer 32 is provided on the colored layer 42.
  • a side of the polymer layer 32 away from the colored layer 42 is provided with a microstructure 31 or a microstructure 33, and the transparent protective layer 51 is disposed on the surface of the microstructure 31 or the microstructure 33.
  • the transparent protective layer 51 is a hardened layer or a scratch resistant layer.
  • the carrier 30 or substrate 30 described in Figures 15-17 can be metal.
  • the carrier 30 or the substrate 30 itself can also function as a reflective layer 41 (as shown in Figure 17).
  • the surface of the sub-text block 20 includes a microstructure area and a blank area.
  • the ratio of the microstructure region to the blank region is greater than or equal to 1.
  • the microstructure 31 shown in FIG. 18 is a structural region, and 34 is a blank region.
  • Structure area + blank area overall area.
  • Structure Area / Overall Area Duty Cycle.
  • the duty cycle ranges from 50% to 100%. The larger the duty ratio, the more the microstructures 31 per unit area, the more the microstructures 31 means that the observer observes the probability and the number of the microstructures 31 from different angles, so that the observer observes The angle of observation of the graphic effect is larger.
  • the invention also provides an electronic device cover plate provided with any one of the above decorative sheets.
  • FIG. 9, is a cover of the electronic device.
  • the electronic device cover can be disposed on the electronic device.
  • the electronic device can be a consumer electronics or a home appliance.
  • the consumer electronics is a mobile phone, an ipad, a notebook, a smart watch, an ipod, a camera, a video camera or a smart bracelet.
  • Figure 9 can be a rear cover for a cell phone or tablet, with a hole matching the camera and a graphic "SOE" on the rear cover.
  • the electronic device cover plate adopts a decorative piece to make it look more beautiful, and the graphic structure layer in the decorative piece is constructed by a sub-text block 20 structure, and the observer can observe the decorative piece from any angle.
  • the picture is clearly seen, and the picture is visually continuous and has a stereoscopic effect.
  • the picture viewed by the observer is a high-definition picture, giving the viewer a sense of reality and achieving a good decorative effect. .

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Abstract

本发明公开了一种装饰片、电子设备盖板以及电子设备。该装饰片用于形成立体图像来表征立体实物，装饰片包括透明保护层、图文结构层和反射层；图文结构层和反射层位于透明保护层的同一侧；图文结构层包括形成立体图像的若干子图文块，各个子图文块包括表征相对应立体实物的明暗度的微结构。包括该微结构的各个子图文块发出的光线的明暗度不同，进而使得子图文块之间具有明暗的变化，通过子图文块之间的明暗变化来表征立体实物在自然状态下存在的明暗变化，使得图文结构层上显示的图文具有立体的效果。

Description

装饰片、电子设备盖板以及电子设备
交叉参考相关引用
本申请要求2016年5月31日提交的申请号为201610379546.1、名称为“装饰片、电子设备盖板以及电子设备”的中国专利申请以及2016年6月1日提交的申请号为201610382015.8、名称为“装饰片、电子设备盖板以及电子设备”的中国专利申请的优先权，上述申请参考并入本文。
技术领域
本发明涉及光学薄膜领域，尤其涉及一种装饰片、电子设备盖板以及电子设备。
背景技术
随着科技的不断发展，装饰片被广泛的应用于手机、电脑等电子产品、冰箱、空调、洗衣机等家用电器以及汽车等产品的表面，以提高产品的美观性。
现有技术中的装饰片一般采用凹版印刷的技术,即在膜的内部印刷有图案或者文字的图文结构层，进而体现多种纹样或金属质感。但是，采用凹版印刷技术制作的图文结构层一般为平面结构，体现不出立体的效果。同时，采用凹版印刷技术制作的图文结构层的分辨率比较差，使的显示出来的图文不清晰。
另外，为了使装饰片的图文明亮醒目，让使用者能看到较为清晰且明亮的图文。现有技术中一般会在凹版印刷中使用增亮油墨或者在图文结构层中加入闪耀晶体，使得装置膜的图文会显得明亮醒目，但在制备的工艺中会存在一定的加工难度以及材料浪费，在一定程度上增加成本。增亮油墨同时会对环境造成污染。此外，使用上述材料来增加图文的清晰度和明亮度，时间越久材料的氧化程度越大，久而久之图文的清晰度和明亮度也会相对下降。
发明内容
针对上述问题，本发明的目的在于提供一种装饰片，用于形成立体图像来表征立体实物，所述装饰片包括透明保护层、图文结构层和反射层；所述图文结构层和所述反射层位于所述透明保护层的同一侧；所述图文结构层包括形成立体图像的若干子图文块，各个子图文块包括表征相对应所述立体实物的明暗度的微结构。
优选的，所述微结构对该所述子图文块反射或折射的光线表征相对应的所述立体实物的明暗度。
优选的，各个所述子图文块基于光源的位置表征相对应所述立体实物的明暗度。
优选的，各个所述子图文块基于接受者的位置表征相对应的所述立体实物的明暗度。
优选的，所述图文结构层形成图像的明暗度与各个所述子图文块的大小、形状、间距、周期、高低、排列密度、材料或与水平方向的夹角中的一种或两种组合相关。
优选的，所述图文结构层形成图像的明暗度与所述微结构的大小、间距、周期、形状、高低、排列密度、材料以及水平方向的夹角中的一种或者两种以上的排列组合相关。
优选的，由各个所述子图文块形成的图像的明暗度变化符合立体实物的明暗度变化。
优选的，至少两个所述子图文块中的微结构与水平方向的夹角不同，获得动态连续的立体实物图 像。
优选的，所述微结构为凸起结构和/或凹陷结构。
优选的，在同一个所述子图文块中，该所述子图文块包括多个相同的所述微结构。
优选的，所述子图文块的最长半径小于100μm；或者所述子图文块的最长半径小于80μm；或者所述子图文块的最长半径小于50μm。
优选的，所述子图文块的横向截面形状包括圆形、三角形、正方形、矩形、不规则多边形；
或所述微结构的横向截面形状包括圆形、三角形、正方形、矩形、不规则多边形。
优选的，复数微结构的设置形成图像，复数微结构之间的变化表征图像的明暗变化。
优选的，微结构的大小、形状、间距、周期、高低、排列密度、材料或与水平方向的夹角中的一种或多种的变化表征图像的明暗。
优选的，所述立体实物在一预定角度体现的灰度值与复数微结构的设置相对应，一个灰度值对应一种微结构，灰度值相同微结构相同，灰度值不同微结构不同。
优选的，紧邻的两个子图文块之间的间距为0～200μm之间；或者紧邻的两个子图文块之间的间距为0～50μm之间。
优选的，所述图文结构层设置在所述透明保护层和所述反射层之间。
优选的，所述图文结构层具有所述微结构的一面朝向所述透明保护层。
优选的，所述透明保护层和所述图文结构层之间还设置有粘结层。
优选的，所述粘结层与所述微结构之间存在折射率差。
优选的，所述装饰片还包括承载层以及聚合物层，所述聚合物层设置在所述承载层的一侧，所述子图文块设置在聚合物层上。
优选的，所述反射层位于所述透明保护层与所述图文结构层之间。
优选的，所述反射层位于所述承载层和所述聚合物层之间。
优选的，所述装饰片包括着色层，所述着色层设置在所述反射层的表面。
优选的，所述装饰片包括着色层，所述着色层设置在所述聚合物层与所述承载层之间。
本发明还提供一种电子设备盖板，所述电子设备盖板上设置有如上所述的装饰片。
本发明还提供一种电子设备，所述电子设备上设置有如上所述的电子设备盖板。
优选的，所述电子设备包括消费电子和家电。
本发明的有益效果：
(1)本发明提供的一种装饰片，装饰片包括图文结构层，图文结构层包括若干子图文块，子图文块包括若干微结构。各个子图文块间的微结构参数不同，使得包括该微结构的各个子图文块发出的光线的明暗度不同，进而使得子图文块之间具有明暗的变化，通过子图文块之间的明暗变化来表征立体实物在自然状态下存在的明暗变化，使得图文结构层上显示的图文具有立体的效果。
(2)本发明提供的一种装饰片，通过调节装饰片上的子图文块中的微结构参数，使得图文结构 层定向的亮度增强，且观察者在不同视角观察图文，可以呈现不同亮度的图文。
(3)本发明提供的一种装饰片，所述的装饰片中图文结构层由子图文块构成，通过调节子图文块的排列密度以及直径，使得图文结构层显示的图文具有较高的分辨率。观察者无论从什么角度观察装饰片都可以看到较为清晰的图文，而且图文在视觉上具有连续以及立体的效果，给观察者一种真实感，且达到较好的装饰效果。
(4)本发明提供的一种装饰片，采用微结构来调节图文的亮度，无需使用增亮油墨或者其他材料，节约成本，并且对于环境也无污染。
附图说明
图1a为本发明一种装饰片中微结构式图文结构示意图；
图1b为本发明一种装饰片中微结构式图文结构部分放大结构示意图；
图2a为本发明一种装饰片中另一微结构式图文结构示意图；
图2b为本发明一种装饰片中另一微结构式图文结构局部放大示意图；
图2c为本发明一种装饰片中另一微结构式图文结构中的另一子图文块示意图；
图3为本发明微结构示意图；
图4为本发明微结构又一种结构示意图；
图5为本发明微结构又一种结构示意图；
图6为本发明微结构又一种结构示意图；
图7a～7e为本发明子图文块形状结构示意图；
图8a～8g为本发明子图文块中微结构的结构参数与灰度值之间的关系示意图；
图9为本发明一种电子设备盖板结构示意图；
图10为本发明一种装饰片结构示意图；
图11为本发明一种装饰片又一种结构示意图；
图12为本发明一种装饰片又一种结构示意图；
图13为本发明一种装饰片又一种结构示意图；
图14为本发明一种装饰片又一种结构示意图；
图15为本发明一种装饰片又一种结构示意图；
图16为本发明一种装饰片又一种结构示意图；
图17为本发明一种装饰片又一种结构示意图；
图18为本发明一种装饰片中微结构占空比结构示意图；
图19为本发明一种装饰片中图文动态效果原理示意图。
以上附图说明：
10、图文结构；11、放大图；20、子图文块；21、子图文块、22、子图文块；30、承载体或基材；31、微结构；32、聚合物层；33、微结构；34、空白区域；41、反射层；42、着色层；51、透明保护层；52、粘结层。
具体实施方式
为了便于理解本发明，下面将参照相关附图对本发明进行更全面的描述。附图中给出了本发明的较佳实施方式。但是，本发明可以通过许多不同的形式来实现，并不限于下面所描述的实施方式。相反地，提供这些实施方式的目的是使对本发明的公开内容理解的更加透彻全面。
需要说明的是，当元件被称为“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本发明。本文所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
本发明公开了一种装饰片，用于形成立体图像来表征立体实物。所述装饰片包括透明保护层51、图文结构层和反射层41；所述图文结构层和所述反射层41位于所述透明保护层51的同一侧；所述图文结构层包括形成立体图像的若干子图文块20，各个子图文块20包括表征相对应所述立体实物的明暗度的微结构31。
在本实施方式中，该装饰片可以用于显示具有立体效果的文字或者图案。请参阅图1a，该装饰片包括图文结构10。该图文结构10上可以显示立体的“SOE”字样。从垂直于纸面的角度来看，该“SOE”字样通过自身不同区域的明暗变化进而给观察者带来具有立体效果的视觉感受。请具体参阅图1b，该图为“SOE”字样中“E”的平面放大图11，放大图11上包括若干的子图文块20，不同的子图文块20可以根据需要显示的图文而具有不同的明暗度。参照图1a和图1b，图1b中“E”字样的最高一行的子图文块20较与其相邻一行的子图文块20较暗，进而可以显示如图1a中的立体效果，其它区域的子图文块20类似，在此不再赘述。
请继续参照图1b，现有技术中，图片的分辨率或者是清晰度与像素点的密度和排列方式有关，像素点排列的越密集，图片越清晰。为了使装饰片上的图文更加的清晰且利于观察者观察。在本实施方式中，子图文块20可以类似为像素点，子图文块20之间排列的越密集，装饰片上的图文显示的越清晰。具体的，紧邻的两个子图文块20之间可以存在间距，所述间距范围可以为0～200μm之间。
在一个优选的实施方式中，紧邻的两个子图文块20之间的间距可以为0～100μm之间。进一步，所述间距范围可以为0～50μm之间。更进一步的，间距还可以是5μm、10μm、15μm、20μm、25μm、30μm或40μm。本申请不对相邻的子图文块20之间的间距作具体的限制，间距可以根据图文要求的分辨率以及图文的连续性进行确定。
更优选的，在不考虑成本和加工难度的情况下，相邻的子图文块10之间也可以没有间距，使得图文结构层能显示更为清晰的图文。
在本实施方式中，图文结构层形成图像的明暗度除了与排列密度有关，还与各个所述子图文块 20的大小、形状、周期、高低、材料或与水平方向的夹角中的一种或两个种组合相关。具体的，在光学领域内，明暗度与入射到观察者眼中的光线的角度、强度以及数量等因素有关。通过改变不同子图文块20之间的上述参数进而改变入射到观察者眼中的光线的角度、强度以及数量，使得不同子图文块20之间的明暗度，进而使图文显示立体的效果。
参阅图7a～7e，图7a～7e为子图文块20具有不同形状的横向截面图。具体的，子图文块20的横向截面形状包括圆形、三角形、正方形、矩形、不规则多边形。通过设置不同形状的子图文块20而使得子图文块20形成的图像的明暗度变化。
在一个优选的实施方式中，图7a～7e也可以为微结构31(微结构33)的横向截面图。微结构31(微结构33)的横向截面形状包括圆形、三角形、正方形、矩形、不规则多边形。通过设置不同形状的微结构31(微结构33)而使得微结构31(微结构33)形成的图像的明暗度变化。
更优选的，由各个所述子图文20块形成的图像的明暗度变化符合立体实物的变化。明暗度是每个子图文块20中微结构31反射光线的进入人眼的不同的表现。假设入射光源是一定的，那么每个子图文块20的入射光(接收到的光线)都是相同的，不同的是，由于每个子图文块20中的微结构31参数不同，使的光线反射或折射的角度不同，所以人眼在一个固定位置接收每个子图文块20发出的光线数也是不同的，所以呈现明暗不同。
在本实施方式中，结合图2a～2c以及图3，子图文块22包括若干微结构31(图中未示出)。所述微结构31可以用于对该所述子图文块22接收到的光线进行折射或反射发出光线。具体的，观察者对明暗度的感觉是通过入射到观察者眼中的光线的角度和强度。通过改变微结构31的参数来改变入射到观察者眼中的光线的角度和强度，进而使得包括该微结构31的子图文块22具有不同的明暗度。
在一个优选的实施方式中，在同一个所述子图文块22中，该所述子图文块22包括多个相同的所述微结构。
本发明提供的一种装饰片，如图1b所示，各个子图文块20间的微结构31的参数不同。当相同的入射光线入射到不同的微结构31上时，不同微结构31的反射光的角度和强度不同，使得包括该微结构31的各个子图文块20发出的光线的明暗度不同，进而使得子图文块20之间具有明暗的变化。通过子图文块20之间的明暗变化来表征立体实物在自然状态下存在的明暗变化，使得图文结构层上显示的图文具有立体的效果。
请参阅图2a，图2a为具有自然形成的水波表面的立体效果的平面图像。这种具有立体效果的平面图像可以用于手机，电脑等电子产品的外观装饰。立体效果的平面图文至少包括图上①区暗色区域，图上②区为过渡区域，以及图上③区的亮色区域，其中①区、②区以及③区连续，即呈现出明到暗的一个渐变过程，进而在视觉上呈现为立体的效果。
请参阅图2b，图示为图2a部分②区域的放大图，图中由若干子图文块21组成，子图文块21与上述的子图文块20的功能以及结构类似，为了表述的方便而采用不同的标号。
从图2b中可以看出，①区为暗色区域，①区内的子图文块21排列的较为稀疏，即子图文块21的排列密度较小；且单个子图文块21的直径较小，进而使得该区域相对较暗。同样的，③区为亮色 区域。该区域内的子图文块21排列的较为紧密且单个子图文块21的直径较大，使得该区域的子图文块21能反射更多的光学到观察者的眼中，使得观察者感觉该区域较为明亮。通过表征真实立体实物所自然形成的明暗变化，从而使图文形成立体效果。
在本实施方式中，所述子图文块21的最长半径可以小于100μm。其中，最长半径的定义为该子图文块21能通过的最小半径的圆。优选的，所述子图文块21的最长半径小于80μm。更优选的，所述子图文块21的最长半径小于50μm。本申请不对子图文块21的最长半径作具体的限制，该半径可以根据实际图文需要显示的效果做具体的选择。
请参阅图2c，图2c为图2a部分区域的放大图。图文由若干另一种子图文块22组成。所述子图文块22大小范围可以为2～500um之间，或者为10～300μm之间，或者20～150μm之间以及可以为30～100μm之间。所述子图文块22随着图2a上的明暗不同，角度不同。
具体的，子图文块22之间的角度可以均有差异，那么随着观察者的角度变化，具有相同角度的子图文块22进入观察者的视野，让观察者的角度在变化的时候产生图文在移动的视觉差异，从而获得动态连续的立体实物图像。另外一方面，不同的子图文块22之间的角度不同，使得不同的子图文块22之间具有不同的明暗变化，进而使得图文具有立体的效果。
在一个优选的实施方式中，各个所述子图文块22可以基于光源的位置发出光线，使得基于光源照射的位置的子图文块22相对未被光源照射的子图文块22显得更明亮。具体的，光源位置的不同，不同子图文块22反射到观察者眼中的角度以及强度也不同，进而使得具有不同角度的子图文块22之间具有不同的明暗度。如图19所示，在相同的入射光入射的情况下，由于子图文块22中的微结构31与水平夹角不同，当光源的位置变化时，子图文块22基于光源的位置发出光学，使得光线照射的地方显得更加的明亮，而给观察者带来一种实物的效果。
在另一个优选的实施方式中，各个所述子图文块22可以基于接受者的位置发出光线。使得与接受者相对应位置的子图文块22可以发出光线或者相对更多的光线。具体的，通过调节装饰片上的子图文块22中的微结构31的参数，使得图文结构层定向的亮度增强。观察者在观察图文时，观察者观察的区域可以发出光线或者相对更多的光线，进而使观察者能观察到明亮的图文。当人们的视线转移时，微结构31反射的光线还可以在人们视觉上存在移动，从而给人们的感觉图文是动态的效果。同时，观察者可以观察到在某个方向较亮度的图文。无需使用增亮油墨或者其他材料而达到定向增亮的效果，这样节约成本，并且对于环境也无污染。
在另一个优选的实施方式中，所述图文结构层形成的图像的明暗度在随接收者或光源的位置变化而变化的变化率符合立体实物的视觉效果参数，从而表征出立体实物。
明暗度可以通过灰度值的来表征。在本实施方式中，图文结构层形成图像的灰度值与所述微结构31(微结构33)的大小、间距、周期、形状、高低、排列密度、材料以及水平方向的夹角中的一种或者两种以上的排列组合相关。
请参阅图8a～8g，图8a～8g为上述的部分参数与灰度值之间的对于关系。所述微结构31的参数只要对应图文的灰度值，使得包括该微结构31的子图文块22具有不同的明暗度，进而使得图文结构 层上的图文且呈现立体效果。
具体的，通过对实物进行解析得到实物各个区域的灰度数据。根据这些数据并结合图2c，对应的设置各个子图文块22的微结构31的参数，使得包括该微结构31的子图文块22具有不同的明暗度，从而实现立体效果。比如，根据灰度值设置微结构31的高度，每个子图文块22的微结构31的高度一致，该高度值代表了对应实物的该区域的灰度，各个子图文块22具有不同的高度，进而实现明暗变化，最终实现立体效果。
在一个优选的实施方式中，如图8a所示，微结构31的灰度值与水平方向的夹角成正相关。其中，灰度值为0～255，水平方向的夹角为0～90°。微结构31的与水平方向的夹角越大，该微结构31所对应的灰度值越大，进而使得包括该微结构31的子图文块22越暗。使得，当至少两个所述子图文块22中的微结构31与水平方向的夹角不同，从而获得动态连续的立体实物图像。
如图8b所示，微结构31的灰度值与微结构的排列周期有关，微结构31的灰度值随着周期的增大而增大。
在另一个优选的实施方式中，参照图10到图14所示，所述微结构31为凸起结构和/或凹陷结构。具体的，微结构31可以为透镜。透镜包括反射面。当微结构31为凸起结构和/或凹陷结构时，其对应的反射面也为凸起结构和/或凹陷结构，使得入射到具有不同反射面上的光线的反射光线的角度不同。
在一个优选的实施方式中，请参阅图3并结合图10，该图为图文结构层的截面图，图文结构层可以设置在所述透明保护层51和所述反射层41之间。图文结构层包括微结构31，且具有微结构31一面的图文结构层朝向透明保护层51，使得观察者可以透过透明保护层51可以观察到微结构31，进而观察到由微结构31形成的立体图文。
继续参阅图3，所述图文结构层还包括承载体30或基材30。所述承载体30或基材30具有第一表面以及第二表面。所述微结构31设于所述承载体30或基材30的第一表面。微结构31可以通过粘结或者一体成型的方式设置在第一表面上，且可以根据实际的图文参数而在第一表面上按预定的位置进行排布。本申请不限于上述的设置方式，微结构31的设置方式可以根据实际的需要进行选择。
参阅图6，该图示出了另一种图文结构层，所述图文结构层包括聚合物层32以及微结构31。微结构31可以为凸起状，且与图3中的微结构31相似。但是图6中的微结构31与聚合物32为一体结构，通过压印或其他方式直接在聚合物32上形成。优选的，所述聚合物32为热固化胶或光固化胶。本申请不对聚合物层32的材料做具体的限制。
请参阅图4，为另一种图文结构层的截面图，所述图文结构层包括聚合物层32以及微结构33。微结构33可以与所述聚合物层32为一体结构，即，通过压印或其他方式直接在聚合物层32上形成。
图4与图6的区别在于微结构31的不同。在本实施方式中，微结构31为凹陷状，也即，所述微结构31底部的宽度小于其开口的宽度。进而保证微结构具有更宽以及更大面积的反射面，使得光线的传输有更大的角度和范围。
上述图3与图4中的微结构31和微结构33所能到达的功能效果相同，其都是用来显示不同的灰 度值。这里采用不同的标号只是为了更加的容易叙述，对产品的结构并没有特别的影响。
请参阅图5，图5中将图4中的图文结构层形成于承载体30或基材30上。具体的，聚合物层32设于所述承载体30或基材30的一侧，然后再通过压印或其他的方式在聚合物层32上形成凹陷结构，进而形成微结构33。具有凹陷结构的微结构33采用开口的宽度大于底部的宽度，进而保证微结构具有更宽以及更大面积的反射面，使得光线的传输有更大的角度和范围。
在一个具体的实施方式中，请参阅图10，一种装饰片，包括透明保护层51、粘结层52、承载体30或基材30、反射层41以及着色层42(或打底油墨层)。所述透明保护层51包括第一表面以及与第一表面相对设置的第二表面。所述图文结构层以及反射层41位于所述透明保护层51的第二表面一侧。所述微结构31可以为凹陷结构。其中，所述微结构31之间存在明暗和/或颜色的变化，进而使得图文体现立体的效果。所述微结构31设于所述聚合物32一侧，且远离透明保护层51一侧。所述反射层41设于所述微结构31表面，所述反射层41表面设有着色层42。透明保护层51与承载体或基材30之间通过粘结层52连接。优选的，粘结层52可以是OCA或者其他透明胶状物体。
在一个优选的实施方式中，请参阅图11，所述透明保护层51和所述图文结构层之间还设置有粘结层52。具体的，该图为另一种结构的装饰片的结构图，装饰片包括透明保护层51、粘结层52、反射层41以及着色层42。其中，所述图文结构层包括聚合物层32(图中未标出)以及微结构31。所述微结构31设于聚合物层32(图中未标出)远离透明保护层51一侧。所述反射层41设于所述微结构31的表面。所述反射层41表面可以设有着色层42。透明保护层51与聚合物层32(图中未标出)之间通过粘结层52连接，使得透明保护层51和聚合物层之间能更好的贴合。优选的，粘结层52可以是OCA或者其他透明胶状物体。
请参阅图12并结合图11，该图为另一装饰片的结构图，与图11相比，聚合物层32(图中未标出)直接形成于透明保护层51一侧，而不需要粘结层52。微结构31远离透明保护层51，其他结构参照图11，不再累述。
请参阅图13，图13为另一装饰片的结构图，包括透明保护层51、粘结层52、图文结构层以及反射层41，其中，图文结构层包括承载体30以及聚合物层32(图中未标出)，聚合物层32形成于所述承载体或基材30表面。聚合物层32远离所述承载体30或基材30的一侧设有微结构31。所述微结构31朝向所述透明保护层51，且通过粘结层52与透明保护层51相连接。优选的，如果粘结层52与图文结构层之间不存在折射率差，那么就是一个平面，不存在光线的变化，也就不会产生图文，因此所述粘结层52与所述图文结构层之间存在折射率差，且折射率差大于0.05。优选的，反射层41位于所述承载体或基材30远离聚合物层32的一侧。
请参阅图14，为在图13中装饰片的基础上反射层41位置进行了调整，反射层41位于所述聚合物层32与承载体30或基材30之间。
图10～图14中的透明保护层51可以为玻璃、PET、PC、PMMA等。优选的，所述PET、PC、PMMA朝向用户的一面上可以设有hard coat，以提高透明保护层的耐刮性，进而提高装饰片的使用寿命。所述的承载体30或基材30可以为PET、PC、PMMA或金属中一种或几种组合。
请参阅图15，为另一种结构装饰片，包括透明保护层51、反射层41以及图文结构层，其中，所述图文结构层包括承载体30或基材30、着色层42以及聚合物层32。所述着色层42设于所述承载体或基材30上。所述聚合物层32设于所述着色层42上。所述聚合物层32远离所述着色层42的一侧设有微结构31。所述反射层41设于所述微结构31表面。所述透明保护层51设于所述反射层41表面。所述透明保护层51可以为加硬层或耐刮层。图15所给出的装饰片的表面设置有微凸起，使得装饰片上部产生镜面反射而无法看清装饰片内的图文，但是在触摸上没有明显或没有凸起感。
请参阅图16，为在图15装饰片的基础上一种根据实际需求改进的装饰片，区别点为图16中的透明保护层51为镜面、平整的保护结构，不是图15中带有为凸起的透明保护结构。本申请对透明保护层51的外表面的结构不做具体的限制，可以根据实际的需求进行选择。
请参阅图17，为另一种结构装饰片，包括透明保护层51以及图文结构层。其中，所述图文结构层包括承载体30或基材30、着色层42以及聚合物层32。所述着色层42设于所述承载体或基材30上。所述聚合物层32设于所述着色层42上。所述聚合物层32远离所述着色层42的一侧设有微结构31或微结构33，所述透明保护层51设于所述微结构31或微结构33表面。所述透明保护层51为加硬层或耐刮层。
图15～图17中所述的承载体30或基材30可以为金属。优选的，所以所述承载体30或者基材30本身也可以作为反射层41(如图17所示)。
在本实施方式中，所述子图文块20的表面包括微结构区域和空白区域。所述微结构区域与空白区域的比值大于或等于1。具体的，请参阅图18，图18所示的微结构31为结构区域，34为空白区域。结构区域+空白区域＝总体区域。结构区域/总体区域＝占空比。所述占空比范围在50％～100％。所述占空比越大，表明单位面积上的微结构31越多，微结构31越多意味着观察者从不同的角度观察到微结构31的几率和数量越大，进而使得观察者观察到图文效果的观察角度越大。
本发明还提供了一种电子设备盖板，该电子设备盖板设置有上述的任意一种装饰片。请参阅图9，图9中给出的为电子设备的盖板。该电子设备盖板可以设置在电子设备上。所述电子设备可以为消费电子或家电。所述消费电子为手机、ipad、笔记本、智能手表、ipod、相机、摄像机或智能手环。图9可以为手机或者平板的后盖板，后盖板上设有与摄像头相匹配的孔，以及图文“SOE”。所述的电子设备盖板采用装饰片来使的其看起来比较美观，并且所述的装饰片中图文结构层采用子图文块20结构构成，观察者无论从什么角度观察装饰片都可以清晰看到图文，而且图文在视觉上为连续图文且呈立体效果，观察者所观看到的图文为高清的图文，给观察者一种真实感，很好的达到装饰的效果。
为使本发明的上述目的、特征和优点能够更加明显易懂，上面结合附图对本发明的具体实施方式做详细的说明。在上面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于上面描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似改进，因此本发明不受上面公开的具体实施例的限制。并且，以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
应该理解，以上描述是为了进行图示说明而不是为了进行限制。通过阅读上述描述，在所提供的示例之外的许多实施方式和许多应用对本领域技术人员来说都将是显而易见的。因此，本教导的范围不应该参照上述描述来确定，而是应该参照所附权利要求以及这些权利要求所拥有的等价物的全部范围来确定。出于全面之目的，所有文章和参考包括专利申请和公告的公开都通过参考结合在本文中。在前述权利要求中省略这里公开的主题的任何方面并不是为了放弃该主体内容，也不应该认为发明人没有将该主题考虑为所公开的发明主题的一部分。

Claims (28)

  1. 一种装饰片，用于形成立体图像来表征立体实物，其特征在于，所述装饰片包括透明保护层、图文结构层和反射层；所述图文结构层和所述反射层位于所述透明保护层的同一侧；所述图文结构层包括形成立体图像的若干子图文块，各个子图文块包括表征相对应所述立体实物的明暗度的微结构。
  2. 根据权利要求1所述的装饰片，其特征在于，所述微结构对该所述子图文块反射或折射的光线表征相对应的所述立体实物的明暗度。
  3. 根据权利要求1所述的装饰片，其特征在于，各个所述子图文块基于光源的位置表征相对应所述立体实物的明暗度。
  4. 根据权利要求1所述的装饰片，其特征在于，各个所述子图文块基于接受者的位置表征相对应的所述立体实物的明暗度。
  5. 根据权利要求1所述的装饰片，其特征在于，所述图文结构层形成图像的明暗度与各个所述子图文块的大小、形状、间距、周期、高低、排列密度、材料或与水平方向的夹角中的一种或两种组合相关。
  6. 根据权利要求1所述的装饰片，其特征在于，所述图文结构层形成图像的明暗度与所述微结构的大小、间距、周期、形状、高低、排列密度、材料以及水平方向的夹角中的一种或者两种以上的排列组合相关。
  7. 根据权利要求1所述的装饰片，其特征在于，由各个所述子图文块形成的图像的明暗度变化符合立体实物的明暗度变化。
  8. 根据权利要求1所述的装饰片，其特征在于，至少两个所述子图文块中的微结构与水平方向的夹角不同，获得动态连续的立体实物图像。
  9. 根据权利要求1所述的装饰片，其特征在于，所述微结构为凸起结构和/或凹陷结构。
  10. 根据权利要求1所述的装饰片，其特征在于，在同一个所述子图文块中，该所述子图文块包括多个相同的所述微结构。
  11. 根据权利要求1所述的装饰片，其特征在于，所述子图文块的最长半径小于100μm；
    或者所述子图文块的最长半径小于80μm；
    或者所述子图文块的最长半径小于50μm。
  12. 根据权利要求1所述的装饰片，其特征在于，所述子图文块的横向截面形状包 括圆形、三角形、正方形、矩形、不规则多边形；
    或所述微结构的横向截面形状包括圆形、三角形、正方形、矩形、不规则多边形。
  13. 根据权利要求9所述的装饰片，其特征在于，复数微结构的设置形成图像，复数微结构之间的变化表征图像的明暗变化。
  14. 根据权利要求13所述的装饰片，其特征在于，微结构的大小、形状、间距、周期、高低、排列密度、材料或与水平方向的夹角中的一种或多种的变化表征图像的明暗。
  15. 根据权利要求14所述的装饰片，其特征在于，所述立体实物在一预定角度体现的灰度值与复数微结构的设置相对应，一个灰度值对应一种微结构，灰度值相同微结构相同，灰度值不同微结构不同。
  16. 根据权利要求1所述的装饰片，其特征在于，紧邻的两个子图文块之间的间距为0～200μm之间；
    或者紧邻的两个子图文块之间的间距为0～50μm之间。
  17. 根据权利要求1所述的装饰片，其特征在于，所述图文结构层设置在所述透明保护层和所述反射层之间。
  18. 根据权利要求1所述的装饰片，其特征在于，所述图文结构层具有所述微结构的一面朝向所述透明保护层。
  19. 根据权利要求1所述的装饰片，其特征在于，所述透明保护层和所述图文结构层之间还设置有粘结层。
  20. 根据权利要求19所述的装饰片，其特征在于，所述粘结层与所述微结构之间存在折射率差。
  21. 根据权利要求1所述的装饰片，其特征在于，所述装饰片还包括承载层以及聚合物层，所述聚合物层设置在所述承载层的一侧，所述子图文块设置在聚合物层上。
  22. 根据权利要求1所述的装饰片，其特征在于，所述反射层位于所述透明保护层与所述图文结构层之间。
  23. 根据权利要求21所述的装饰片，其特征在于，所述反射层位于所述承载层和所述聚合物层之间。
  24. 根据权利要求1所述的装饰片，其特征在于，所述装饰片包括着色层，所述着色层设置在所述反射层的表面。
  25. 根据权利要求21所述的装饰片，其特征在于，所述装饰片包括着色层，所述 着色层设置在所述聚合物层与所述承载层之间。
  26. 一种电子设备盖板，其特征在于，所述电子设备盖板上设置有如权利要求1至25中任意一项所述的装饰片。
  27. 一种电子设备，其特征在于，所述电子设备上设置有如权利要求26所述的电子设备盖板。
  28. 根据权利要求27所述的电子设备，其特征在于，所述电子设备包括消费电子和家电。
PCT/CN2017/084915 2016-05-31 2017-05-18 装饰片、电子设备盖板以及电子设备 WO2017206724A1 (zh)

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