WO2010070788A1 - 外装部品およびその製造方法ならびに電子機器 - Google Patents
外装部品およびその製造方法ならびに電子機器 Download PDFInfo
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- WO2010070788A1 WO2010070788A1 PCT/JP2009/004511 JP2009004511W WO2010070788A1 WO 2010070788 A1 WO2010070788 A1 WO 2010070788A1 JP 2009004511 W JP2009004511 W JP 2009004511W WO 2010070788 A1 WO2010070788 A1 WO 2010070788A1
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- WIPO (PCT)
- Prior art keywords
- protective layer
- region
- structural color
- refractive index
- color region
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- Legal status (The legal status 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 status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44F—SPECIAL DESIGNS OR PICTURES
- B44F1/00—Designs or pictures characterised by special or unusual light effects
- B44F1/08—Designs or pictures characterised by special or unusual light effects characterised by colour effects
- B44F1/10—Changing, amusing, or secret pictures
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1866—Transmission gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
- G03H1/024—Hologram nature or properties
- G03H1/0244—Surface relief holograms
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
- G03H1/0252—Laminate comprising a hologram layer
- G03H1/0256—Laminate comprising a hologram layer having specific functional layer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1861—Reflection gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2250/00—Laminate comprising a hologram layer
- G03H2250/12—Special arrangement of layers
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2250/00—Laminate comprising a hologram layer
- G03H2250/36—Conform enhancement layer
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2250/00—Laminate comprising a hologram layer
- G03H2250/39—Protective layer
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2250/00—Laminate comprising a hologram layer
- G03H2250/40—Printed information overlapped with the hologram
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/2457—Parallel ribs and/or grooves
Definitions
- the present invention relates to an exterior part that develops color due to a concavo-convex structure, a manufacturing method thereof, and an electronic device provided with the exterior part.
- a coloring means by structural coloring using a physical phenomenon such as light interference or diffraction has been used without using pigments such as pigments and dyes.
- the transfer sheet for example, refer patent document 1 which has a fine uneven surface is mentioned.
- the structural color development does not rely on the fact that light of a specific wavelength is absorbed by the material itself, but a phenomenon in which the color changes due to the color light generated due to the material and its structure, and the color changes. Is due to. This is because the properties of the light itself differ depending on the wavelength of the light, and in this case, it differs from the case of coloring due to the electronic properties of the molecule or solid itself like a dye. .
- Such a color body is called a structural color body because it has no color in itself and develops color by the action of light reflection, interference and diffraction.
- optical phenomena related to the development of structural color include multilayer film interference, thin film interference, refraction, dispersion, light scattering, Mie scattering, diffraction, and diffraction grating.
- an optical thin film having a film thickness of 1 ⁇ m or less formed by a vacuum film forming technique such as vacuum deposition or sputtering is often used.
- Such structural color development is expected to be a coating method and coloring means for exterior parts in recent years because it has advantages such as little change with time due to ultraviolet rays, and more glossiness.
- FIG. 11 is a configuration diagram of a conventional transfer sheet using structural color development described in Patent Document 1, wherein 1 is a support, 2 is a heat-resistant protective film, 3 is a diffractive structure forming layer, and 4 is a diffraction effect layer.
- Reference numeral 5 denotes a heat-resistant mask layer, and 6 denotes an adhesive layer.
- the metal reflective diffraction effect layer 4 is formed on the diffraction structure forming layer 3 on which the diffraction grating is formed, and the heat-resistant mask layer 5 is pattern printed on the diffraction effect layer 4.
- this is immersed in a bath containing an NaOH solution to etch the portion of the diffraction effect layer 4 exposed from the non-existing portion of the heat-resistant mask layer 5, and then an adhesive layer 6 is formed to manufacture a transfer sheet.
- the color development characteristic of the structural color generated by the diffraction grating is any color light, color, It depends on how strong the wavelength is generated. Such coloring characteristics are affected by the structure period of the diffraction grating, the groove shape, or the refractive index of the coating material covering the diffraction grating.
- means for providing a contrast by providing different portions with different coloring characteristics, and for this purpose, the structure period of the diffraction grating, the groove shape, or the refractive index of the coating material covering the diffraction grating A means for designing a plurality of regions in which each element is appropriately changed is required.
- An object of the present invention is to provide an exterior part that can be easily manufactured and can make an arbitrary pattern or character appear floating with a contrast using a structural color, a manufacturing method thereof, and an electronic device. .
- the exterior component of the present invention is an exterior component having a structural color region that develops color by a concavo-convex structure on the surface, and the structural color region has a groove arrangement structure in which grooves are formed in parallel with a constant structural period; A first region and a second region having different refractive indexes are provided on the groove arrangement structure.
- the exterior component of the present invention is an exterior component having a structural color region that develops color by a concavo-convex structure on the surface, and the structural color region has a groove arrangement structure in which grooves are formed in parallel with a constant structural period.
- the groove arrangement structure has a first region where the groove arrangement structure is covered with a light-transmitting protective layer and a second region where the groove arrangement structure is in direct contact with air.
- the exterior component of the present invention is an exterior component having a structural color region that develops color by a concavo-convex structure on the surface, and the structural color region has a groove arrangement structure in which grooves are formed in parallel with a constant structural period.
- On the groove array structure an air layer in which air is interposed, and a first region covered with a first protective layer that covers the surface of the air layer and is light transmissive and has a refractive index different from that of air
- having a second region of the second protective layer that covers the surface of the groove array structure not covered with the air layer and is light-transmissive and has the same refractive index as the first protective layer.
- the exterior component of the present invention is an exterior component having a structural color region that develops color by a concavo-convex structure on the surface, and the structural color region has a groove arrangement structure in which grooves are formed in parallel with a constant structural period.
- the light-transmitting fourth protection having a refractive index different from that of the third protective layer and covering the surface of the third protective layer covering a part of the surface of the groove-arranged structure on the groove array structure.
- the cross-sectional shape in the depth direction of the grooves of the groove arrangement structure is a triangle.
- the manufacturing method of the exterior component according to the present invention forms a groove array structure in which grooves are arranged in parallel at a constant structural period in the structural color region when manufacturing an exterior component having a structural color region that is colored by the uneven structure on the surface. And forming a first region in which the groove array structure is covered with a light-transmitting protective layer and a second region in which the groove array structure is in direct contact with air. And
- an exterior component of the present invention when manufacturing an exterior component having a structural color region that is colored by a concavo-convex structure on the surface, grooves are formed in the structural color region so as to be arranged in parallel at a constant structural period.
- a groove arrangement structure is formed, and an air layer in which air is interposed and a surface of the air layer are covered on the groove arrangement structure, and a light-transmitting first protective layer having a refractive index different from that of air is covered.
- forming a second region of the second protective layer that covers the surface of the groove array structure that is not covered with the air layer and is light transmissive and has the same refractive index as the first protective layer.
- grooves are formed in the structural color region so as to be arranged in parallel at a constant structural period.
- a groove array structure is formed, and a second protective layer that covers the surface of the groove array structure and is light-transmitting is formed on the groove array structure with a space therebetween, and is formed across the adjacent second protective layers.
- a sheet having the same refractive index as that of the second protective layer is disposed on the second protective layer, and an air layer having a refractive index different from that of the second protective layer is provided between the groove protective structure and the sheet between the second protective layers. It is characterized by forming.
- grooves are formed in the structural color region so as to be arranged in parallel at a constant structural period.
- a groove array structure is formed, and a second protective layer that covers the surface of the groove array structure and is light-transmitting is formed on the groove array structure with a space therebetween, and is formed across the adjacent second protective layers.
- a film having the same refractive index as the second protective layer is disposed on the second protective layer, and the air layer having a refractive index different from that of the second protective layer is provided between the groove protective structure and the film between the second protective layers. It is characterized by forming.
- grooves are formed in the structural color region so as to be arranged in parallel at a constant structural period.
- Light having a refractive index different from that of the third protective layer is formed by forming a groove array structure, covering the surface of the third protective layer that covers a part of the surface of the groove array structure on the groove array structure.
- a third protective layer in a first region is formed on the groove array structure, and a refractive index is set on the third protective layer and on the groove array structure in the second region.
- a refractive index is set on the third protective layer and on the groove array structure in the second region.
- the structure period and groove shape of the micro concavo-convex pattern constituting the diffraction grating are appropriately selected, and the micro concavo-convex pattern is formed within the structural color area.
- FIG. 1 is an enlarged plan view of the first embodiment according to the present invention and its AA sectional view.
- FIG. 4 is an enlarged plan view of a fourth embodiment according to the present invention and its AA sectional view.
- 1 to 4 show exterior parts according to an embodiment of the present invention.
- Exterior parts include exterior panels for electronic devices, electrical appliances, exterior panels for mobile phone devices, and instrument panels (instruments) for automobiles.
- FIG. 1 is an enlarged plan view showing a state in which visible light is diffracted on the surface of the exterior part.
- the structural color region 10 in FIG. 1 is constituted by a triangular groove array structure 11 composed of a groove group in which linear triangular grooves 11a, 11b, 11c,... Are arranged in parallel at a constant structure period.
- Incident light 12 incident on the structural color region 10 from above is diffracted by the triangular groove array structure 11 in a direction orthogonal to the triangular groove array structure 11 to generate diffracted light 13.
- the triangular groove array structure 11 includes a method of cutting triangular grooves 11a, 11b, 11c,... Having a cross-sectional shape in the depth direction formed into a triangle with a sharpened cutting tool.
- the slope angle: ⁇ of the triangular groove array structure 11 shown in FIG. P is the structural period of the triangular groove array structure 11, and H is the height of the triangular groove array structure 11.
- the structural color region 10a in the case where the coating layer covering the triangular groove array structure 35 having the structure period P shown in FIG. 3A is an air layer 36 (when there is no protective layer), and FIG.
- the wavelength diffraction characteristics in the structural color region 10b in the case of the protective layer 37 having the refractive index N1 shown in b) and the structural color region 10c in the case of the protective layer 38 having the refractive index N2 shown in FIG. 4 shows.
- the wavelength diffraction characteristics indicate what color light, color, ie, how much intensity the wavelength is generated, It shows the coloring characteristics of the structural color generated by the diffraction grating. Such coloring characteristics are affected by the structure period of the diffraction grating, the groove shape, or the refractive index of the coating material covering the diffraction grating.
- the wavelength diffraction characteristic 43 in the triangular groove array structure 35 having the structural period P in the structural color region 10a in FIG. 3A has a structural period at a wavelength shorter than the structural period P with the structural period P as the upper limit as shown in FIG.
- the diffraction efficiency is high in the nearby band, and the diffraction efficiency tends to decrease as the wavelength becomes shorter than the structural period.
- the diffraction efficiency decreases rapidly.
- the wavelength diffraction characteristic 44 in the structural color region 10b in FIG. 3B shows the same wavelength diffraction characteristic as that in which the structural period P is expanded to P ⁇ N1 by the refractive index N1 of the protective layer 37. This is because, in the protective layer having the refractive index N1, the wavelength of visible light is reduced to 1 / N1 as compared to the air having the refractive index 1, so that the structure period of the diffraction grating is relatively enlarged. This is because it works.
- the wavelength diffraction characteristic 45 of the structural color region 10c in FIG. As shown in FIG. 4, the shape further shifts to the longer wavelength side.
- the triangular grooves are arranged at a constant structural period P and covered with a protective layer having a refractive index N, so that P ⁇ N
- the upper limit value of the wavelength range of the color light to be generated can be limited by controlling the wavelength range of the color light to be generated to a specific wavelength range.
- the height: H of the triangular groove array structure 11 was 225 nm and 315 nm, respectively. In this case, it was confirmed that only the structural period of the triangular groove array structure 11 was different, and the base color of the structural color region 10 changed even if the other structures were the same.
- FIG. 5 shows Embodiment 1 of the exterior component according to the present invention.
- FIG. 5 (a) is a plan view
- FIG. 5 (b) is an enlarged view of the AA cross section in FIG. 5 (a), showing the structural color region on the surface of the exterior part.
- the structural color region 10 of the exterior part includes a groove array structure in which grooves are formed in parallel with a constant structure period, and a first region and a second region having different refractive indexes on the groove array structure. is doing.
- the groove array structure has a triangular groove array structure 53 having a constant structure period: P.
- a first structural color region 51 as a first region and a second structural color region 52 as a second region are formed on the triangular groove array structure 53 .
- the triangular groove array structure 53 is covered with a protective layer 54 having a refractive index N.
- the triangular groove array structure 53 is directly exposed to the air by the air layer 55.
- the protective layer 54 is light transmissive, and more specifically, is, for example, a transparent resin layer.
- a specific example of “P” in the second structural color region 52 is an example of a logo mark or the like to be written on the exterior part.
- the pattern and characters float up with contrast due to the difference in coloring characteristics due to the influence of the protective layer 54.
- the part of the letter “P” is directly exposed to the air, and the other part of the structural color region 10 is covered with the protective layer 54 having a refractive index N.
- the triangular groove array structure 53 formed by the processing method as described above is masked only on the second structural color region 52, and then the triangular groove array structure is formed.
- a method of coating the protective layer 54 using a material that conforms to the concavo-convex structure of the surface 53 and then removing the mask is mentioned.
- coating may be performed after processing the triangular groove arrangement structure on the exterior part itself, or after processing the mold of the exterior part and then transferring it to the molded part, the molded part A coating may be applied to the surface.
- FIG. 6 shows Embodiment 2 of the exterior component according to the present invention.
- FIG. 6A is a plan view
- FIG. 6B is an enlarged view of the AA cross section in FIG. 6A, showing the structural color region 10 on the surface of the exterior part.
- the first structural color area 51 as the first area is covered with the protective layer 54
- the second structural color area 52 as the second area is the air layer 55 exposed in the air.
- the second embodiment is different in that the first structural color region 61 is configured by the air layer 65 exposed in the air, and the second structural color region 62 is covered by the protective layer 44.
- the structural color region has a triangular groove array structure 63 with a constant structural period: P.
- the triangular groove array structure 63 includes a first structural color region 61 as a second region in which the triangular groove array structure 63 is directly exposed to air by the air layer 65, and a triangular groove array structure 63 by the protective layer 64 having a refractive index N. And a second structural color area 62 as the first area covered with the.
- the protective layer 64 is light transmissive, more specifically, a transparent resin layer.
- the pattern and characters float with contrast by the difference in coloring characteristics due to the influence of the protective layer 64.
- the portion of the letter “P” is covered by the protective layer 64 having a refractive index N, and the other portions are directly exposed to the air.
- the triangular groove array structure 63 formed by the above-described processing method is used by masking only the first structural color region 61 and then forming the triangular groove array structure.
- the protective layer 64 may be coated using a material that conforms to the concavo-convex structure of the surface 63 and then the mask is removed.
- FIG. 7 shows Embodiment 3 of the exterior component according to the present invention.
- FIG. 7A is a plan view
- FIG. 7B is an enlarged view of the AA cross section in FIG. 7A, showing the structural color region 10 on the surface of the exterior part.
- the surface of the protective layer 54 of the first structural color region 51 and the second structural color region 52 are exposed to the air.
- the third structural color region 71 has a third surface.
- the surface of the protective layer 74c as the protective layer and the second structural color region 72 are covered with the protective layer and are not exposed to the air.
- a light-transmitting fourth protective layer that covers the surface of the protective layer 74c that covers a part of the surface of the groove array structure 73 and has a light-transmitting and different refractive index from the protective layer 74c.
- a fifth protective layer that covers the first region 71 covered with the protective layer 75a and the surface not covered with the protective layer 74c of the groove array structure 73 and is light transmissive and has the same refractive index as the third protective layer 74c.
- the second region 72 of the protective layer 75b is provided.
- the structural color region has a triangular groove array structure 73 with a constant structural period: P.
- a first structural color region 71 and a second structural color region 72 are formed on the surface of the triangular groove array structure 73.
- the first structural color area 71 and the second structural color area 72 are formed as follows.
- the surface of the triangular groove array structure 73 in the first structural color region 71 is covered with a protective layer 74c having a refractive index N1.
- the surface of the protective layer 74c and the surface of the triangular groove array structure 73 in the second structural color region 72 located between the first structural color regions 71 are protected layers 75a and 75b having a refractive index N2 different from the refractive index N1.
- the surfaces of the first structural color region 71 and the second structural color region 72 are formed flush with each other.
- the method for forming such a structural color region is as follows.
- the triangular groove array structure 73 formed by the above-described processing method is masked only on the second structural color region 72, and the refractive index is N1 and the irregularities on the surface of the triangular groove array structure 73 are formed.
- the protective layer 74c is coated using a material that conforms to the structure.
- the second structural color region 72 and the surface of the protective layer 74c of the first structural color region 71 have a refractive index of N2 and the second structural color region 71 to the second structural color region 71.
- the surfaces of the first structural color region 71 and the second structural color region 72 are flush with each other by coating the protective layers 75a and 75b with a material that conforms to the uneven structure over the structural color region 72.
- FIG. 8 shows a modification of the third embodiment.
- FIG. 8A is a plan view
- FIG. 8B is an enlarged view of the AA cross section in FIG. 8A.
- the first structural color region 61 and the second structural color region 62 are shown.
- the surface of the triangular groove array structure 83 in the first structural color region 81 and the surface of the protective layer 84 in the second structural color region 82 are exposed. It is covered with the protective layers 85a and 85b and is not exposed to the air.
- the portion of the letter “P” is covered with a protective layer having a refractive index N1. Therefore, the contrast of the letter “P” is observed with the configuration shown in FIG.
- a first structural color region 81 and a second structural color region 82 are formed on the surface of the triangular groove array structure 83.
- the first structural color area 81 and the second structural color area 82 are formed as follows.
- the surface of the triangular groove array structure 83 in the second structural color region 82 is covered with a protective layer 84 having a refractive index N1.
- the surface of the protective layer 84 and the first structural color region 81 located on both sides of the second structural color region 82 are covered with the protective layers 85b and 85a having a refractive index N2 different from the refractive index N1, and the first structural color.
- the surfaces of the region 81 and the second structural color region 82 are flush with each other.
- FIG. 9 shows Embodiment 4 of the exterior component according to the present invention.
- FIG. 9A is a plan view
- FIG. 9B is an enlarged view of the AA cross section in FIG. 9A, showing the structural color region 10 on the surface of the exterior part.
- the surface of the groove array structure 73 is entirely covered with the protective layer 74c and the protective layer 75b.
- the air layer 95 with air interposed is formed on the groove array structure 93. Is provided.
- the structural color region has a triangular groove array structure 93 with a constant structural period: P.
- a first structural color area 91 and a second structural color area 92 are formed on the surface of the triangular groove array structure 93.
- the first structural color area 91 and the second structural color area 92 are formed as follows.
- the surface of the triangular groove array structure 93 in the first structural color region 91 is covered with an air layer 95 containing air having a refractive index of 1.
- the surface of the air layer 95 and the surface of the triangular groove array structure 93 in the second structural color region 92 located between the first structural color regions 91 have protective layers 94a and 94b having a refractive index N different from the refractive index 1.
- the surface of the first structural color region 91 and the second structural color region 92 is formed flush with each other.
- the protective layer 94a having a refractive index N existing in the first structural color region 91 via the air layer 95 is present only for the protection of the triangular groove array structure 93.
- the part not having the letter “P” is covered by the air layer 75 having a refractive index of 1, and the part having the letter “P” being covered by the protective layer 94b having a refractive index of N.
- the method for forming such a structural color region is as follows.
- the triangular groove array structure 93 formed by the above-described processing method is masked only on the first structural color region 91, and the refractive index is N and the concave and convex structure of the triangular groove array structure 93 is formed.
- the protective layer 94b is formed by coating the second structural color region 92 using a material that is compatible.
- a protective layer having a refractive index of N is formed on the air layer 95 in the first structural color region 91 formed by removing the mask and on the surface of the protective layer 94b in the second structural color region 92.
- a protective layer having a refractive index of N is formed on the air layer 95 in the first structural color region 91 formed by removing the mask and on the surface of the protective layer 94b in the second structural color region 92.
- FIG. 12 shows another specific manufacturing method according to the fourth embodiment.
- a mask 90 a is formed on the triangular groove array structure 93.
- a material having a refractive index N is applied on the mask 90a to form a protective layer 94b that contacts the surface of the triangular groove array structure 93 from the openings 90b of the mask 90a.
- a sheet 96a is bonded so as to straddle over the adjacent protective layer 94.
- the sheet 96a has the same refractive index as that of the protective layer 94, and the thickness thereof is about 0.1 to 0.5 mm (100 to 500 ⁇ m). In this way, both the first structural color region 91 and the second structural color region 92 can be covered with the protective layer while leaving the air layer 95 of the first structural color region 91.
- FIG. 13 shows still another specific manufacturing method of the fourth embodiment.
- a mask 90 a is formed on the triangular groove array structure 93.
- a material having a refractive index N is applied on the mask 90a to form a protective layer 94b that contacts the surface of the triangular groove array structure 93 from the openings 90b of the mask 90a.
- a film 96b is bonded so as to straddle over the adjacent protective layer 94b, and the air layer 95 in the first structural color region 91 is interposed between the adjacent protective layers 94b.
- the thickness of the film 96b is about 0.1 to 0.5 mm (100 to 500 ⁇ m).
- a material is applied over the first structural color region 91 and the second structural color region 92 from the top of the film 96b to form the protective layer 97 flush.
- the refractive index of the protective layer 97 is the same as that of the protective layer 94b. In this way, both the first structural color region 91 and the second structural color region 92 can be covered with the protective layer 97 while leaving the air layer 95 of the first structural color region 91.
- FIG. 10 shows a modification of the fourth embodiment.
- FIG. 10 (a) is a plan view
- FIG. 10 (b) is an enlarged view of the AA cross section in FIG. 10 (a).
- An air layer 104 is present. Therefore, the contrast of the letter “P” is observed with the configuration shown in FIG.
- a first structural color region 101 and a second structural color region 102 are formed on the surface of the triangular groove array structure 103.
- the first structural color region 101 and the second structural color region 102 are formed as follows.
- the surface of the triangular groove array structure 103 in the second structural color region 102 is covered with an air layer 104 containing air having a refractive index of 1.
- the surface of the air layer 104 and the surface of the triangular groove array structure 103 in the first structural color region 10 located on both sides of the second structural color region 102 are protective layers 105a and 105b having a refractive index N different from the refractive index 1.
- the surface of the first structural color region 101 and the second structural color region 102 is formed flush with each other.
- the refractive index of the protective layer (including the air layer) that is brought into contact with the triangular groove shape having a constant structural period is changed.
- such structural color development does not require the use of various pigments, dyes or organic solvents, which eliminates the need for post-treatment steps such as waste liquid treatment, and can reduce the burden on the work and environment.
- the manufacturing cost can be reduced by the steps of printing, pasting, and painting, and in particular, a large amount of carbon dioxide generated in the painting process can be reduced.
- an electronic device provided on at least part of the surface of exterior parts such as exterior panels and instrument panels (instrument panels) of automobiles , It is useful as a coating method and coloring means for electrical appliances and mobile phone devices.
- translucent resins that require a high refractive index include thiourethane resins (refractive index of about 1.7) used in eyeglass lenses and the like. Can do.
- a specific example of the translucent resin that requires a low refractive index is an amorphous fluorine-based resin (refractive index of 1.3 or higher) used for the core layer of an optical fiber.
- the present invention can contribute to improvement of functions of exterior parts such as electronic devices, electrical appliances, mobile phone devices, and automobiles.
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Abstract
Description
図5は本発明に係る外装部品の実施の形態1を示す。
図6は本発明に係る外装部品の実施の形態2を示す。
図7は本発明に係る外装部品の実施の形態3を示す。
図9は本発明に係る外装部品の実施の形態4を示す。
Claims (14)
- 凹凸構造により発色する構造色領域を表面に有する外装部品であって、
前記構造色領域は、
一定の構造周期で平行に並んで溝が形成された溝配列構造と、
前記溝配列構造の上に、互いの屈折率が異なる第1領域と第2領域を有している
外装部品。 - 凹凸構造により発色する構造色領域を表面に有する外装部品であって、
前記構造色領域は、
一定の構造周期で平行に並んで溝が形成された溝配列構造と、
前記溝配列構造の上に、前記溝配列構造が光透過性の保護層に覆われた第1領域と前記溝配列構造が空気に直接に接触する第2領域を有している
外装部品。 - 凹凸構造により発色する構造色領域を表面に有する外装部品であって、
前記構造色領域は、
一定の構造周期で平行に並んで溝が形成された溝配列構造と、
前記溝配列構造の上に、
空気が介在する空気層と、この空気層の表面を覆うとともに光透過性で屈折率が空気の屈折率とは異なる第1保護層に覆われた第1領域と、前記空気層で覆われていない前記溝配列構造の表面を覆うとともに光透過性で第1保護層と屈折率が同じ第2保護層の第2領域を有している
外装部品。 - 凹凸構造により発色する構造色領域を表面に有する外装部品であって、
前記構造色領域は、一定の構造周期で平行に並んで溝が形成された溝配列構造と、
前記溝配列構造の上に、
光透過性で前記溝配列構造の表面の一部を覆う第3保護層の表面を覆うとともに第3保護層とは屈折率が異なる光透過性の第4保護層に覆われた第1領域と、第3保護層によって覆われていない前記溝配列構造の表面を覆うとともに光透過性で第4保護層と屈折率が同じ第5保護層の第2領域を有している
外装部品。 - 前記溝配列構造の前記溝の深さ方向の断面形状を三角形とした
請求項1~請求項4のいずれかに記載の外装部品。 - 凹凸構造により発色する構造色領域を表面に有する外装部品を製造するに際し、
前記構造色領域に一定の構造周期で平行に溝が並んだ溝配列構造を形成し、
前記溝配列構造の上に、前記溝配列構造が光透過性の保護層に覆われた第1領域と、前記溝配列構造が空気に直接に接触する第2領域を形成する
外装部品の製造方法。 - 凹凸構造により発色する構造色領域を表面に有する外装部品を製造するに際し、
前記構造色領域に、一定の構造周期で平行に並んで溝が形成された溝配列構造を形成し、
前記溝配列構造の上に、
空気が介在する空気層とこの空気層の表面を覆うとともに光透過性で屈折率が空気の屈折率とは異なる第1保護層に覆われた第1領域と、前記溝配列構造の前記空気層で覆われていない表面を覆うとともに光透過性で第1保護層と屈折率が同じ第2保護層の第2領域を形成する
外装部品の製造方法。 - 凹凸構造により発色する構造色領域を表面に有する外装部品を製造するに際し、
前記構造色領域に、一定の構造周期で平行に並んで溝が形成された溝配列構造を形成し、
前記溝配列構造の上に、
前記溝配列構造の表面を覆うとともに光透過性の第2保護層を間隔を空けて形成し、
隣接する第2保護層に跨って第2保護層の上に第2保護層と屈折率が同じシートを配置して第2保護層の間で前記溝配列構造と前記シートの間に、第2保護層とは異なる屈折率の空気層を形成する
外装部品の製造方法。 - 凹凸構造により発色する構造色領域を表面に有する外装部品を製造するに際し、
前記構造色領域に、一定の構造周期で平行に並んで溝が形成された溝配列構造を形成し、
前記溝配列構造の上に、
前記溝配列構造の表面を覆うとともに光透過性の第2保護層を間隔を空けて形成し、
隣接する第2保護層に跨って第2保護層の上に第2保護層と屈折率が同じフィルムを配置して第2保護層の間で前記溝配列構造と前記フィルムの間に、第2保護層とは屈折率の異なる空気層を形成する
外装部品の製造方法。 - 凹凸構造により発色する構造色領域を表面に有する外装部品を製造するに際し、
前記構造色領域に、一定の構造周期で平行に並んで溝が形成された溝配列構造を形成し、
前記溝配列構造の上に、
光透過性で前記溝配列構造の表面の一部を覆う第3保護層の表面を覆うとともに第3保護層とは屈折率が異なる光透過性の第4保護層に覆われた第1領域と、前記溝配列構造の第3保護層によって覆われていない表面を覆うとともに光透過性で第3保護層と屈折率が同じ第5保護層の第2領域とを形成する
外装部品の製造方法。 - 前記溝配列構造の上に第1領域の第3保護層を形成し、
第3保護層の上と第2領域における前記溝配列構造の上に屈折率が第3保護層とは異なる第4,第5保護層を形成する
請求項10記載の外装部品の製造方法。 - 前記溝配列構造を、直線状の同一形状の溝で、前記溝の深さ方向の断面形状を三角形に形成する
請求項6~請求項10の何れかに記載の外装部品の製造方法。 - 請求項1~請求項4の何れかに記載の外装部品を少なくとも表面の一部に設けた
電子機器。 - 電子機器の外装部品の少なくとも表面の一部に、請求項6~請求項10の何れかの外装部品の製造方法で構造色領域を形成した
電子機器。
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| CN200980103868.1A CN101925474B (zh) | 2008-12-19 | 2009-09-11 | 外装零部件及其制造方法、以及电子设备 |
| US12/936,844 US20110026208A1 (en) | 2008-12-19 | 2009-09-11 | Exterior parts and method of manufacturing the same and electronic equipment using the same |
| JP2010542811A JP5100850B2 (ja) | 2008-12-19 | 2009-09-11 | 外装部品およびその製造方法ならびに電子機器 |
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- 2009-09-11 JP JP2010542811A patent/JP5100850B2/ja not_active Expired - Fee Related
- 2009-09-11 US US12/936,844 patent/US20110026208A1/en not_active Abandoned
- 2009-09-11 CN CN200980103868.1A patent/CN101925474B/zh not_active Expired - Fee Related
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| JP2001347798A (ja) * | 2000-06-07 | 2001-12-18 | Teijin Ltd | 発色構造体 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012060455A1 (ja) * | 2010-11-05 | 2012-05-10 | 川並鉄工株式会社 | 画像表示パネル及び画像表示パネル設置設備並びに画像表示パネルの製造方法 |
| JP5282171B2 (ja) * | 2010-11-05 | 2013-09-04 | 川並鉄工株式会社 | 画像表示パネル及び画像表示パネル設置設備並びに画像表示パネルの製造方法 |
| US9235997B2 (en) | 2010-11-05 | 2016-01-12 | Kawanami Ironworks Inc. | Image display panel, image display panel installation equipment, and manufacturing method for image display panel |
| JP5374799B1 (ja) * | 2013-02-28 | 2013-12-25 | 東海神栄電子工業株式会社 | スクリーン印刷法による文字・記号印刷等を不要とする、回路基板の製造方法 |
| WO2014132974A1 (ja) * | 2013-02-28 | 2014-09-04 | 東海神栄電子工業株式会社 | 基板の製造方法と基板とマスクフィルム |
| US9857687B2 (en) | 2013-02-28 | 2018-01-02 | Tokai Shinei Electronics Inidustry Co., Ltd | Method of manufacturing substrate and substrate and mask film |
| JP2015143808A (ja) * | 2013-12-18 | 2015-08-06 | 東海神栄電子工業株式会社 | 基板の製造方法と基板とマスクフィルム |
| JP6748800B1 (ja) * | 2019-10-15 | 2020-09-02 | 合同会社ルミノカラー | 装飾体、装飾体製造装置及び装飾体製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101925474B (zh) | 2013-04-03 |
| JPWO2010070788A1 (ja) | 2012-05-24 |
| JP5100850B2 (ja) | 2012-12-19 |
| EP2360026A1 (en) | 2011-08-24 |
| US20110026208A1 (en) | 2011-02-03 |
| CN101925474A (zh) | 2010-12-22 |
| EP2360026A4 (en) | 2014-02-19 |
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