Vehicle lock system and vehicle

Abstract

To provide a technology capable of improving security of a vehicle door.SOLUTION: A vehicle lock system includes: a lock part that locks a vehicle door; an operation part that is arranged on a surface side of a vehicle body, receives operation for releasing lock of the lock part, and can emit light; and a printed matter arranged on a surface side of the operation part and on which color is printed. The printed matter is configured to allow light from the operation part to transmit therethrough when the operation part emits light, and conceal the operation part by color of the printed matter when the operation part does not emit light.SELECTED DRAWING: Figure 16

Description

[Technical Field]

[0001] The present disclosure relates to a vehicle locking system and a vehicle. [Background technology]

[0002] 2. Description of the Related Art Conventionally, vehicle doors are known that are unlocked by inserting a key into a keyhole. Patent Document 1 discloses that an authentication device is provided on the side of a vehicle door. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-065212 Summary of the Invention [Problem to be solved by the invention]

[0004] A thief may unlock a vehicle door by destroying (picking) the keyhole. Even if an authentication device is installed on the side of the vehicle door so that the door can be unlocked using a method other than a key, there is a risk that the authentication device may be analyzed and the door may be unlocked. The present disclosure provides a technology that can improve the security of vehicle doors. [Means for solving the problem]

[0005] [1] A vehicle locking system according to one aspect of the present disclosure includes a locking unit that locks the vehicle doors, an operating unit that is arranged on the surface of the vehicle body and that is operated to unlock the locking unit and that can emit light, and a printed matter that is arranged on the surface of the operating unit and that is printed in a color, and is configured so that when the operating unit emits light, the printed matter transmits light from the operating unit and when the operating unit is turned off, the printed matter conceals the operating unit with the color of the printed matter.

[0006] In the vehicle locking system, when the operation unit emits light, the light emitted from the operation unit passes through the printed material. Therefore, even if the surface side of the operation unit is covered with the printed material, the authorized person can see the operation unit through the light that passes through the printed material and operate to unlock the door. When the operation unit does not emit light, the operation unit is concealed by the color of the printed material. By making the operation unit not emit light in situations other than when an authorized person is unlocking, the position of the operation unit can be made invisible by the color of the printed material. In this case, people other than the authorized person cannot even perform the unlocking operation. Therefore, the vehicle locking system can improve the security of the vehicle doors.

[0007] [2] In one embodiment, in the vehicle locking system described in [1] above, the operating unit and the printed matter may be provided on the door. In this case, by replacing an existing door with a door provided with the operating unit and the printed matter, the security of the vehicle door can be easily improved.

[0008] [3] In one embodiment, in the vehicle locking system described in [1] above, the operating unit and the printed matter may be provided in a location other than the door. In this case, the vehicle locking system can make it difficult for anyone other than an authorized person to find the operating unit.

[0009] [4] In one embodiment, the vehicle locking system described in any one of [1] to [3] above further includes a control unit that detects the presence of an authorized person who has the authority to unlock the doors and controls the illumination of the operation unit, and the control unit may detect the presence of the authorized person based on image analysis of the authorized person or identification information held by the authorized person, and may illuminate the operation unit when the presence of the authorized person is detected. In this case, the vehicle locking system makes the operation unit visible when the authorized person is detected, thereby further improving the security of the vehicle doors.

[0010] A vehicle according to one aspect of the present disclosure includes a vehicle body, a locking unit that locks the vehicle doors, an operating unit that is disposed on the surface of the vehicle body and that is operated to unlock the locking unit and that can emit light, and a printed matter that is disposed on the surface of the operating unit and that is printed in a color, the printed matter being configured to transmit light from the operating unit when the operating unit emits light and to conceal the operating unit with the color of the printed matter when the operating unit is turned off. The vehicle achieves the same effects as the vehicle locking system described above. [Effects of the Invention]

[0011] According to the present disclosure, the security of vehicle doors can be improved. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a cross-sectional view schematically showing a display device according to Example 1-1. [Figure 2] FIG. 2 is a cross-sectional view schematically showing a picture print layer included in the display device shown in FIG. [Figure 3] FIG. 3 is a cross-sectional view schematically showing a printed matter according to Example 1-2. [Figure 4] FIG. 4 is a cross-sectional view schematically showing a white pattern layer included in the printed matter shown in FIG. [Figure 5] FIG. 5 is a cross-sectional view schematically showing a printed matter according to Example 1-3. [Figure 6] FIG. 6 is a cross-sectional view schematically showing a printed matter according to Example 1-4. [Figure 7] FIG. 7 is a cross-sectional view schematically showing a picture print layer included in a display device according to Example 2-1. [Figure 8] FIG. 8 is a table showing the configuration of printed matter according to Experimental Examples 1 to 3. [Figure 9] FIG. 9 is a cross-sectional view schematically showing a picture print layer included in a display device according to Example 3-1. [Figure 10] FIG. 10(a) is a schematic diagram showing the color combinations of the picture print layer, and FIG. 10(b) is a schematic diagram showing the color combinations of the picture print layer according to a comparative example. [Figure 11] FIG. 11 is a schematic diagram showing a specific example of a color combination of the picture print layer. [Figure 12] FIG. 12 is a cross-sectional view schematically showing a picture print layer included in a display device according to Example 4-1. [Figure 13] FIG. 13(a) is a schematic diagram showing the color combinations of the picture print layer, and FIG. 13(b) is a schematic diagram showing the color combinations of the picture print layer according to a comparative example. [Figure 14] FIG. 14 is a schematic diagram showing a specific example of a color combination of the picture print layer. [Figure 15] Figure 15(a) is a view of the light source covered with printed matter viewed from the front side when the power of the light source 3 is OFF, and Figure 15(b) is a view of the light source covered with printed matter viewed from the front side when the power of the light source 3 is ON. [Figure 16] 16(a) and 16(b) are perspective views showing a vehicle according to one embodiment. [Figure 17] FIG. 17 is a diagram showing an example of a cross section of a vehicle door. [Figure 18] 18(a) and 18(b) are diagrams showing an example of visual information V3 displayed in the display area DE shown in FIG. 16(b). [Figure 19] FIG. 19 is a diagram showing another example of a cross section of a vehicle door. [Figure 20] FIG. 20 is a block diagram showing the configuration of a vehicle locking system according to an embodiment. [Figure 21] 21(a) and 21(b) are diagrams showing an example of the interior of a vehicle to which a printed matter and a light source are applied. DETAILED DESCRIPTION OF THE INVENTION

[0013] Specific examples of vehicle locking systems and vehicles according to embodiments of the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims and is intended to include all modifications within the meaning and scope of the claims. In the following description, identical elements in the drawings will be designated by the same reference numerals, and duplicate explanations will be omitted.

[0014] [About printed materials] First, examples of printed materials used in the present embodiment will be described with reference to FIGS. 1 to 15. However, the contents described with reference to FIGS. 1 to 15 are merely examples of printed materials that can be employed in the present disclosure. Therefore, the layer structures of printed materials exemplified in the description with reference to FIGS. 1 to 15 do not limit the layer structures of printed materials employed in the present disclosure. For the purpose of describing printed materials, FIG. 1 shows the printed material incorporated into a display device. In this specification, when a printed material is formed by printing dot-shaped ink, the layer structure of the printed material may include a structure in which a portion of one layer and a portion of another layer are located at the same position in the thickness direction or may intersect with each other. When viewed in a plan view, the layer structure may also include a structure in which a pattern forming one layer and a pattern forming another layer partially overlap and do not overlap in other portions. Each layer in the layer structure of the printed material can also be considered as a stack of printed patterns.

[0015] [Example 1-1] FIG. 1 is a cross-sectional view schematically showing a display device according to Example 1-1. FIG. 2 is a cross-sectional view schematically showing a picture-printed layer included in the display device shown in FIG. 1. As shown in FIG. 1, the display device 1 includes a printed material 2 and a light source 3. The printed material 2 is a sheet for expressing a picture, and includes a light-transmitting substrate 4, a picture-printed layer 5, and a transparent smoke-printed layer 30. The printed material 2 is provided in front of the light source 3 (between the viewer and the light source 3). The printed material 2 is fully light-transmitting. Therefore, when the light source 3 is powered on, the viewer can see the light from the light source 3 that has passed through the printed material 2, and when the light source 3 is powered off, the viewer can see the picture expressed by the printed material 2. The light source 3 is, for example, a display device.

[0016] The light-transmitting substrate 4 is a substrate that is transparent to visible light. The light-transmitting substrate 4 is made of, for example, a transparent resin. Examples of transparent resins include PET, PMMA, polycarbonate, polyethylene, polypropylene, and nylon. The light-transmitting substrate 4 may be a glass substrate. The thickness of the light-transmitting substrate 4 is, for example, 25 μm to 250 μm, but as long as printing is possible, a substrate having a thickness less than or greater than this range can also be used. In the case of a glass substrate, the thickness is, for example, about several mm to 10 mm. If necessary, a surface protection layer may be provided on the surface side of the light-transmitting substrate 4 (the side opposite to the picture-printed layer 5).

[0017] The picture-printed layer 5 is a layer that expresses the picture of the printed matter 2. The picture-printed layer 5 includes a first color pattern layer 10 provided on one surface 4a of the light-transmitting substrate 4, and a second color pattern layer 20 provided on the first color pattern layer 10.

[0018] The first color pattern layer 10 can be formed on the surface 4a by, for example, screen printing, inkjet printing, gravure printing, or offset printing. As shown in FIG. 2, the first color pattern layer 10 is composed of a plurality of first color dots 11. Here, "dot" refers to a point that is an element constituting a printed image, and its shape is not limited to a circle but may be a rectangle, a polygon, or other shape. Each of the plurality of first color dots 11 contains a first color binder 12 and a plurality of first color pigment chips 13 dispersed within the first color binder 12. The content of the plurality of first color pigment chips 13 is, for example, in the range of 0.5 parts by weight to 20 parts by weight, where the first color binder 12 is 100 parts by weight.

[0019] Examples of the first color binder 12 include vinyl resins, acrylic resins, thermoplastic urethane resins, polyester resins, and polycarbonate resins. The thickness of the first color pattern layer 10 is, for example, 1 μm to 10 μm. The first color pattern layer 10 may contain a curing agent. In this case, the heat resistance of the first color pattern layer 10 and the adhesion of the first color pattern layer 10 to the light-transmitting substrate 4 can be improved. The first color pattern layer 10 may also contain a weathering agent. Known ultraviolet absorbers and light stabilizers can be used as the weathering agent.

[0020] In Example 1-1, the multiple first color pigment chips 13 are multiple color first interference pigments 14a, 14b that generate different interference light from each other. Each of the first interference pigments 14a, 14b is composed of a thin flake (not shown) that is transparent to visible light and a metal oxide film (not shown) that covers the flake. Light incident on the first color pattern layer 10 from the translucent substrate 4 side and reflected from the surface of the metal oxide film interferes with light that passes through the metal oxide film and is reflected from the surface of the flakes, generating interference light. Adjusting the film thickness and refractive index of the metal oxide film allows for generation of interference light with a desired wavelength.

[0021] In Example 1-1, each of the first interference pigments 14a and 14b is titanium dioxide-coated mica. The particle size range of the titanium dioxide-coated mica includes, for example, a range of 25 μm to 60 μm. Here, "particle size" refers to the longest diameter of the particle cross section. The flakes that make up the first interference pigments 14a and 14b may be made of materials other than mica, such as silica, alumina, glass, or polysilicate. The metal oxide films that make up the first interference pigments 14a and 14b may be made of materials other than titanium dioxide, such as zirconium oxide, zinc oxide, iron oxide, or tin oxide.

[0022] When incident light E enters the first color pattern layer 10, the first interference pigments 14a and 14b generate first interference light beams 15a and 15b, which are different from each other. That is, the wavelengths of the first interference light beams 15a and 15b are different from each other. As a result, the first interference pigments 14a and 14b exhibit a mixed color. The first interference pigments 14a and 14b are, for example, a red interference pigment (red pearl pigment) and a gold interference pigment (gold pearl pigment), respectively. In this case, the first interference light beams 15a and 15b exhibit red and gold, respectively. The blending amounts of the first interference pigments 14a and 14b may be the same or different from each other.

[0023] The second color pattern layer 20 can be formed on the first color pattern layer 10 by, for example, screen printing, inkjet printing, gravure printing, or offset printing. As shown in FIG. 2, the second color pattern layer 20 is composed of a plurality of second color dots 21. Here, "dot" refers to a point that is an element constituting a printed image, and its shape is not limited to a circle but may be a rectangle, a polygon, or other shape. Each of the plurality of second color dots 21 contains a second color binder 22 and a plurality of second color pigment chips 23 dispersed within the second color binder 22. The content of the plurality of second color pigment chips 23 is, for example, in the range of 0.5 parts by weight to 20 parts by weight, where the second color binder 22 is 100 parts by weight.

[0024] Examples of the second color binder 22 include vinyl resins, acrylic resins, thermoplastic urethane resins, polyester resins, and polycarbonate resins. The thickness of the second color pattern layer 20 is, for example, 1 μm to 10 μm. The second color pattern layer 20 may contain a curing agent. In this case, the heat resistance of the second color pattern layer 20 and the adhesion of the second color pattern layer 20 to the first color pattern layer 10 can be improved. The second color pattern layer 20 may also contain a weathering agent. Known ultraviolet absorbers and light stabilizers can be used as the weathering agent.

[0025] In Example 1-1, the multiple second color pigment chips 23 are second interference pigments 24 that generate monochromatic interference light different from the mixed color of the first interference pigments 14a and 14b. The second interference pigment 24 is composed of flakes (not shown) that are transparent to visible light and a metal oxide film (not shown) that covers the flakes. Light incident on the second color pattern layer 20 from the translucent substrate 4 side is reflected by the surface of the metal oxide film, and light that passes through the metal oxide film and is reflected by the surface of the flakes interferes with each other to generate interference light. Adjusting the film thickness and refractive index of the metal oxide film allows for the generation of interference light with a desired wavelength.

[0026] In Example 1-1, the second interference pigment 24 is titanium dioxide-coated mica. The particle size range of the titanium dioxide-coated mica includes, for example, a range of 25 μm to 60 μm. Here, "particle size" refers to the longest diameter of the particle cross section. The flakes that make up the second interference pigment 24 may be made of a material other than mica, such as silica, alumina, glass, or polysilicate. The metal oxide film that makes up the second interference pigment 24 may be made of a material other than titanium dioxide, such as zirconium oxide, zinc oxide, iron oxide, or tin oxide.

[0027] When incident light E enters the second color pattern layer 20, the second interference pigment 24 generates a monochromatic second interference light 25. As a result, the second interference pigment 24 exhibits a monochromatic color. The second interference pigment 24 may be any interference pigment that generates a monochromatic second interference light 25 different from the mixed color exhibited by the first interference pigments 14a and 14b, and may be, for example, a green interference pigment (green pearl pigment). In this case, the second interference light 25 exhibits green color.

[0028] The transparent smoke printed layer 30 has the function of attenuating light from the front side of the viewpoint that passes through the printed matter 2. The transparent smoke printed layer 30 is provided on the outermost surface of the picture printed layer 5, opposite the light-transmitting substrate 4. In Example 1-1, the transparent smoke printed layer 30 is provided on the second color pattern layer 20, as shown in FIG. 1. The transparent smoke printed layer 30 can be provided on the second color pattern layer 20 by, for example, screen printing, inkjet printing, gravure printing, or offset printing using an ink in which a small amount of carbon black is dispersed in a resin binder such as a vinyl, acrylic, urethane, or polyester binder. The thickness of the transparent smoke printed layer 30 is, for example, 1 μm to 10 μm. The transparent smoke printed layer 30 may contain a curing agent. In this case, the heat resistance of the transparent smoke printed layer 30 and the adhesion of the transparent smoke printed layer 30 to the second color pattern layer 20 can be improved. Furthermore, a weatherproofing agent may be contained in the transparent smoke printed layer 30. As the weatherproofing agent, known ultraviolet absorbers and light stabilizers can be used.

[0029] In the printed matter 2, the image is expressed by additively mixing the first interference light 15a, 15b generated by the first interference pigments 14a, 14b and the second interference light 25 generated by the second interference pigment 24.

[0030] The total light transmittance of the printed matter 2 is, for example, 30% to 70%. The total light transmittance here refers to a value measured using a spectrophotometer (for example, spectrophotometer UV-2100 manufactured by Shimadzu Corporation).

[0031] In the printed matter 2 according to Example 1-1 described above, the first color pattern layer 10 contains the first interference pigments 14a and 14b, and the second color pattern layer 20 contains the second interference pigment 24, making it possible to achieve a three-dimensional image even with a small number of printed layers. Furthermore, in the printed matter 2, the first color pattern layer 10 is the only pattern layer of the first color pattern layer 10 and the second color pattern layer 20 that contains an interference pigment that generates different interference light from each other, making it possible to simplify color matching and registration work during printing. Therefore, the printed matter 2 makes it possible to achieve a three-dimensional image even with a small number of printed layers, and also simplifies color matching and registration work during printing.

[0032] In Example 1-1, the printed matter 2 includes a transparent smoke print layer 30 provided on the second color pattern layer 20. This provides better color development between the first color pattern layer 10 and the second color pattern layer 20. Furthermore, because the transparent smoke print layer 30 is transparent, a decrease in the visibility of the image on the display device 1 is effectively suppressed.

[0033] In Example 1-1, each of the first interference pigments 14a, 14b and the second interference pigment 24 contains titanium dioxide-coated mica with a particle size of 25 μm or more and 60 μm or less. When titanium dioxide-coated mica with a particle size of 25 μm or more is contained, the transparency and color development of the picture-printed layer 5 can be improved. When titanium dioxide-coated mica with a particle size of 60 μm or less is contained, a decrease in the resolution and gradation of the picture-printed layer 5 can be suppressed.

[0034] In Example 1-1, the content of the multiple first color pigment chips 13 is within a range of 0.5 parts by weight or more and 20 parts by weight or less, when the first color binder 12 is taken as 100 parts by weight, and the content of the multiple second color pigment chips 23 is within a range of 0.5 parts by weight or more and 20 parts by weight or less, when the second color binder is taken as 100 parts by weight. Because the content of the multiple first color pigment chips 13 is within a range of 0.5 parts by weight or more, the pattern of the first color pattern layer 10 is well expressed. Because the content of the multiple first color pigment chips 13 is within a range of 20 parts by weight or less, deterioration in the coating properties and transparency of the first color pattern layer 10 can be suppressed. Similarly, since the content of the multiple second color pigment chips 23 is within the range of 0.5 parts by weight to 20 parts by weight when the second color binder 22 is 100 parts by weight, the pattern of the second color pattern layer 20 is well expressed while preventing a decrease in the coating properties and transparency of the second color pattern layer 20.

[0035] In Example 1-1, the total light transmittance of the printed matter 2 is 30% to 70%. If the total light transmittance is 30% or more, when the printed matter 2 is placed in front of a screen, the light from the image on the screen makes it difficult to see the picture printed layer 5, and the image is more clearly visible. If the total light transmittance is 70% or less, the picture in the picture printed layer 5 can be prevented from appearing dark even when the screen is black.

[0036] In Example 1-1, the display device 1 includes a printed matter 2 and a light source 3. With the display device 1, when the light source 3 is not lit, the pattern on the pattern printed layer 5 is visible, and when the light source 3 is lit, the transmitted light from the light source 3 (pattern display, video display, etc.) is visible.

[0037] In Example 1-1, the light source 3 may be a display device. In this case, when the display is not lit, the pattern on the pattern-printed layer 5 is visible, and when the display is lit, transmitted light from the display (pattern display, video display, etc.) is visible.

[0038] As described above, the multiple interference pigments 14a, 14b, and 24 may contain pearl pigments. That is, the picture-printed layer 5 may contain multiple interference pearl pigments (interference pigments 14a, 14b, and 24) that are different from one another. Therefore, the printed matter 2 is a printed matter 2 that includes a translucent substrate 4 and a picture-printed layer 5, and the picture-printed layer 5 may contain multiple interference pearl pigments. This allows the picture-printed layer 5 to achieve a three-dimensional appearance.

[0039] The picture-printed layer 5 may include a first color pattern layer 10 containing an interference pearl pigment and a second color pattern layer 20 containing an interference pearl pigment, thereby allowing the picture-printed layer 5 to have a more three-dimensional appearance.

[0040] Each of the first color pattern layer 10 and the second color pattern layer 20 may contain a plurality of interference pearl pigments, thereby enabling the picture printed layer 5 to have a more three-dimensional appearance. For example, the second color pattern layer 20 may contain other interference pearl pigments in addition to the interference pigment 24.

[0041] The particle diameters of the plurality of interference pearl pigments may be different from one another. By including interference pearl pigments of different particle diameters in this way, a decrease in the transparency of the picture-printed layer 5 is suppressed.

[0042] The particle diameter of the plurality of interference pearl pigments may be 25 μm or more and 60 μm or less. In this case, the color development of the pattern of the pattern-printed layer 5 can be improved. Furthermore, by suppressing an unnecessary decrease in the transparency of the pattern-printed layer 5, the visibility of the image on the display device can be improved when the display device is used.

[0043] The interference pearl pigment may contain titanium dioxide-coated mica. In this case, the wavelength of the interference light can be adjusted by adjusting the thickness of the titanium dioxide film. Furthermore, by increasing the smoothness of the mica surface, the brightness can be improved.

[0044] The effect of the picture-printed layer 5 containing a plurality of interference pearl pigments can be obtained not only in the first example, but also in the second to sixth examples described later.

[0045] [Example 1-2] Below, a printed matter 2A according to Example 1-2 will be described with reference to Figures 3 and 4. Note that in the description of Example 1-2, descriptions that overlap with Example 1-1 above will be omitted, and only differences from Example 1-1 above will be described. In other words, to the extent technically possible, descriptions from Example 1-1 above may be used appropriately in Example 1-2.

[0046] Fig. 3 is a cross-sectional view schematically showing a printed matter according to Example 1-2. Fig. 4 is a cross-sectional view schematically showing a white pattern layer provided in the printed matter shown in Fig. 3. The printed matter 2A includes a light-transmitting substrate 4 and a picture printed layer 5. The printed matter 2A further includes a white pattern layer 40 provided on the second color pattern layer 20.

[0047] The white pattern layer 40 can be formed on the second color pattern layer 20 by, for example, screen printing, inkjet printing, gravure printing, or offset printing. As shown in FIG. 4 , the white pattern layer 40 is composed of a plurality of silver dots 41. Here, "dot" refers to a point that is an element constituting a printed image, and its shape is not limited to a circle, but may be a rectangle, a polygon, or other shape. Each of the plurality of silver dots 41 contains a silver binder 42 and a plurality of silver pigment chips 43 dispersed within the silver binder 42. The content of the plurality of silver pigment chips 43 is, for example, in the range of 0.5 parts by weight to 20 parts by weight, where the silver binder 42 is 100 parts by weight.

[0048] Examples of the silver binder 42 include vinyl resins, acrylic resins, thermoplastic urethane resins, polyester resins, and polycarbonate resins. The thickness of the white pattern layer 40 is, for example, 1 μm to 10 μm. The white pattern layer 40 may contain a curing agent. In this case, the heat resistance of the white pattern layer 40 and the adhesion of the white pattern layer 40 to the second color pattern layer 20 can be improved. The white pattern layer 40 may also contain a weathering agent. Known ultraviolet absorbers and light stabilizers can be used as the weathering agent.

[0049] The configuration of the printed matter 2A described above also achieves the same effects as in Example 1-1 above. Furthermore, Example 1-2 includes a white pattern layer 40 formed on the second color pattern layer 20 and composed of a plurality of silver dots 41, each of which contains a silver binder 42 and a plurality of silver pigment chips 43 dispersed within the silver binder 42. This provides excellent color development for the first color pattern layer 10 and the second color pattern layer 20, and allows the picture printed layer 5 to have a pattern that gives a whitish impression.

[0050] [Example 1-3] Below, a printed matter 2B according to Example 1-3 will be described with reference to Figure 5. Note that in the description of Example 1-3, descriptions that overlap with Examples 1-1 and 1-2 above will be omitted, and only differences from Examples 1-1 and 1-2 above will be described. In other words, to the extent technically possible, descriptions from Examples 1-1 and 1-2 above may be used appropriately in Example 1-3.

[0051] 5 is a cross-sectional view schematically showing a printed matter according to Example 1-3. The printed matter 2B comprises a light-transmitting substrate 4 and a picture print layer 5. That is, the printed matter 2B does not comprise a translucent smoke print layer 30 or a white pattern layer 40. Even with the configuration of the printed matter 2B described above, the same effects as those of Example 1-1 can be achieved.

[0052] [Example 1-4] Below, a printed matter 2C according to Example 1-4 will be described with reference to Figure 6. Note that in the description of Example 1-4, descriptions that overlap with Examples 1-1, 1-2, and 1-3 above will be omitted, and only differences from Examples 1-1, 1-2, and 1-3 above will be described. In other words, to the extent technically possible, descriptions from Examples 1-1, 1-2, and 1-3 above may be used appropriately in Example 1-4.

[0053] 6 is a cross-sectional view schematically showing a printed matter according to Example 1-4. The printed matter 2C comprises a light-transmitting substrate 4, a picture print layer 5, a white pattern layer 40, and a transmissive smoke print layer 30. The white pattern layer 40 is provided on the second color pattern layer 20, and the transmissive smoke print layer 30 is provided on the white pattern layer 40. The configuration of the printed matter 2C described above also achieves the same effects as those of Examples 1-1, 1-2, and 1-3.

[0054] The display device and printed matter according to the present disclosure are not limited to the above-described examples, and various other modifications are possible. For example, the second color pattern layer may include first interference pigments of multiple colors that generate different first interference lights, and the first color pattern layer may include a second interference pigment that generates a single-color second interference light that is different from the mixed color exhibited by the multiple first interference pigments. Furthermore, while the above examples show that the first color pigment chips are first interference pigments of two colors, the first color pigment chips may be first interference pigments of three or more colors.

[0055] [Second example] [Example 2-1] The printed matter and display device according to this example may have the same configuration as that shown in Fig. 1. Therefore, in the printed matter and display device according to this example, the description of the same configuration as that of the printed matter and display device of Example 1-1 will be omitted. The printed matter and display device according to Example 2-1 adopt the layer configuration shown in Fig. 7 instead of the layer configuration shown in Fig. 2.

[0056] The first interference pigment 14a includes a plurality of first titanium dioxide-coated micas 18a of a small particle size grade having a particle size range of 5 μm to 25 μm and a second titanium dioxide-coated mica 18b of a large particle size grade having a particle size range of 25 μm to 40 μm. The first interference pigment 14b includes a plurality of first titanium dioxide-coated micas 16a of a small particle size grade having a particle size range of 5 μm to 25 μm and a plurality of second titanium dioxide-coated micas 16b of a large particle size grade having a particle size range of 25 μm to 40 μm. The first titanium dioxide-coated micas 18a, 16a have an average particle size (D50) of, for example, about 15 μm, and the second titanium dioxide-coated micas 18b, 16b have an average particle size (D50) of, for example, about 25 μm. As a result, the average particle size of the first titanium dioxide-coated mica 18a, 16a is smaller than the average particle size of the second titanium dioxide-coated mica 18b, 16b. The second titanium dioxide-coated mica 18b, 16b may have a particle size range of 25 μm to 60 μm. In this case, the average particle size (D50) of the second titanium dioxide-coated mica 18b, 16b is, for example, approximately 35 μm. As shown in FIG. 7, each of the multiple first titanium dioxide-coated mica 18a, 16a is arranged so as to fill the gaps between the multiple second titanium dioxide-coated mica 18b, 16b. Here, "particle size" refers to the longest diameter of the particle cross section.

[0057] When incident light L enters the first color pattern layer 10, the first interference pigments 14a and 14b generate first interference lights 17a and 17b, which are different from each other. That is, the wavelengths of the first interference lights 17a and 17b are different from each other. As a result, the first interference pigments 14a and 14b exhibit a mixed color. The first interference pigments 14a and 14b may be, for example, a red interference pigment (red pearl pigment) and a gold interference pigment (gold pearl pigment), respectively. In this case, the first interference lights 17a and 17b exhibit red and gold, respectively. The first interference pigments 14a and 14b may be interference pigments of other colors. The blending amounts of the first interference pigments 14a and 14b may be the same or different from each other.

[0058] The second color pattern layer 20 may be the same as that shown in the first example.

[0059] The second interference pigment 24 includes a plurality of first titanium dioxide-coated micas 25a of a small particle size grade including a particle size range of 5 μm to 25 μm and a second titanium dioxide-coated mica 25b of a large particle size grade including a particle size range of 25 μm to 40 μm. The first titanium dioxide-coated micas 25a have an average particle size (D50) of, for example, about 15 μm, and the second titanium dioxide-coated micas 25b have an average particle size (D50) of, for example, about 25 μm. Thus, the average particle size of the first titanium dioxide-coated micas 25a is smaller than the average particle size of the second titanium dioxide-coated micas 25b. The second titanium dioxide-coated micas 25b may have a particle size range of 25 μm to 60 μm. In this case, the average particle size (D50) of the second titanium dioxide-coated micas 25b is, for example, about 35 μm. The plurality of first titanium dioxide-coated mica particles 25a are arranged so as to fill the gaps between the plurality of second titanium dioxide-coated mica particles 25b. Here, the "particle size" means the longest diameter of the cross section of the particle.

[0060] When incident light L enters the second color pattern layer 20, the second interference pigment 24 generates a single-color second interference light 26. As a result, the second interference pigment 24 exhibits a single color. The second interference pigment 24 may be any interference pigment that generates a single-color second interference light 26 different from the mixed color exhibited by the first interference pigments 14a and 14b, and may be, for example, a green interference pigment (green pearl pigment). In this case, the second interference light 26 exhibits green. The second interference pigment 24 may be an interference pigment of a color other than green.

[0061] The transparent smoke printed layer 30 is a layer for attenuating light transmitted through the printed matter 2. The transparent smoke printed layer 30 is provided on the outermost surface of the picture printed layer 5, opposite the light-transmitting substrate 4. In Example 2-1, the transparent smoke printed layer 30 is provided on the second color pattern layer 20, as shown in FIG. 1. The transparent smoke printed layer 30 can be provided on the second color pattern layer 20 by, for example, screen printing, inkjet printing, gravure printing, or offset printing using an ink in which a small amount of carbon black is dispersed in a resin binder such as a vinyl, acrylic, urethane, or polyester binder. The thickness of the transparent smoke printed layer 30 is, for example, 1 μm to 10 μm. The transparent smoke printed layer 30 may contain a curing agent. In this case, the heat resistance of the transparent smoke printed layer 30 and the adhesion of the transparent smoke printed layer 30 to the second color pattern layer 20 can be improved. Furthermore, a weatherproofing agent may be contained in the transparent smoke printed layer 30. As the weatherproofing agent, known ultraviolet absorbers and light stabilizers can be used.

[0062] In the printed matter 2, the image is expressed by additively mixing the first interference light 17a, 17b generated by the first interference pigments 14a, 14b and the second interference light 26 generated by the second interference pigment 24.

[0063] The total light transmittance of the printed matter 2 is, for example, 30% to 70%. The total light transmittance here refers to a value measured using a spectrophotometer (for example, spectrophotometer UV-2100 manufactured by Shimadzu Corporation).

[0064] In the printed matter 2 according to Example 2-1 described above, in the first color pattern layer 10, each of the plurality of first titanium dioxide-coated micas 18a, 16a having a small particle size range of 5 μm to 25 μm is arranged to fill the gaps between the plurality of second titanium dioxide-coated micas 18b, 16b having a large particle size range of 25 μm to 40 μm. In the printed matter 2, in the second color pattern layer 20, each of the plurality of first titanium dioxide-coated micas 25a having a small particle size range of 5 μm to 25 μm is arranged to fill the gaps between the plurality of second titanium dioxide-coated micas 25b having a large particle size range of 25 μm to 40 μm. Therefore, the printed matter 2 can provide a pattern with excellent visibility and color development. Furthermore, in the printed matter 2, the first color pattern layer 10 contains large particle size grade second titanium dioxide-coated mica 18b, 16b, and the second color pattern layer 20 contains large particle size grade second titanium dioxide-coated mica 25b, thereby suppressing a decrease in the transparency of the picture printed layer 5. Therefore, according to the printed matter 2, a decrease in the visibility of the image on the display device is effectively suppressed when the power is on.

[0065] In Example 2-1, the large particle size grade second titanium dioxide-coated mica 18b, 16b, 25b may have a particle size range of 25 μm to 60 μm. In this case, the color development of the pattern is more excellent. Furthermore, by suppressing an unnecessary decrease in the transparency of the pattern-printed layer 5, the visibility of the image on the display device 1 can be improved when used in the display device.

[0066] In Example 2-1, the first interference pigments 14a, 14b, and the second interference pigment 24 are interference pigments containing titanium dioxide-coated mica. Therefore, by adjusting the thickness of the titanium dioxide film, the wavelength of the interference light can be adjusted. Furthermore, by increasing the smoothness of the mica surface, the perceived brightness can be improved.

[0067] In the second example, the configurations according to Examples 1-2 to 1-4 in the first example may also be adopted.

[0068] In the above examples, the first interference pigment and the second interference pigment each contained a plurality of first titanium dioxide-coated micas and a plurality of second titanium dioxide-coated micas. However, it is sufficient that at least one of the first interference pigment and the second interference pigment contains a plurality of first titanium dioxide-coated micas and a plurality of second titanium dioxide-coated micas. Furthermore, in the above examples, the first color pigment chips were first interference pigments of two colors. However, the first color pigment chips may be first interference pigments of three or more colors. Furthermore, first interference pigments of multiple colors may be mixed.

[0069] [Experimental Example] Here, experimental examples will be used to explain the tendency of the appearance of images and patterns on LCD monitors depending on the particle size of the titanium dioxide-coated mica contained in the pattern print layer. As shown in FIG. 8 and Experimental Examples 1 to 3 described below, printed matter was produced with the particle size of the titanium dioxide-coated mica adjusted. FIG. 8 is a diagram showing the configuration of the printed matter according to Experimental Examples 1 to 3. An LCD monitor was placed on the back side (transparent smoke printed layer side) of the printed matter according to Experimental Examples 1 to 3. The distance between the printed matter and the LCD monitor was 2 mm. The visibility (items 1 to 4 described below) of the LCD monitor when it was turned on and off was evaluated. Sensory evaluation was conducted by four people for items 1 to 4, and the average score was calculated.

[0070] <Experimental Example 1> A printed material was produced by sequentially providing a first-color pattern layer, a second-color pattern layer, a white pattern layer, and a transparent smoke print layer on a transparent PET substrate. In Experimental Example 1, the first-color pattern layer was formed by screen printing using an ink containing a first-color binder (urethane resin) and red and gold interference pigments dispersed within the first-color binder. The red and gold interference pigment contents were as follows, per 100 parts by weight of the first-color binder: 8 parts by weight of a red interference pigment having a particle size of 10 to 40 μm, 2 parts by weight of a red interference pigment having a particle size of 5 to 25 μm, 5 parts by weight of a gold interference pigment having a particle size of 10 to 60 μm, and 2 parts by weight of a gold interference pigment having a particle size of 5 to 25 μm.

[0071] In Experimental Example 1, a second color pattern layer was formed by screen printing using an ink containing a second color binder (urethane resin) and a green interference pigment dispersed within the second color binder. The green interference pigment content was 4 parts by weight of a green interference pigment with a particle size of 10 to 40 μm and 1 part by weight of a green interference pigment with a particle size of 5 to 25 μm, relative to 100 parts by weight of the second color binder. The red interference pigment, gold interference pigment, and green interference pigment were all titanium dioxide-coated mica.

[0072] In Experimental Example 1, a white pattern layer was formed by screen printing using an ink containing a silver binder (urethane resin) and silver pigment chips dispersed within the silver binder. The silver pigment chip content was 1 part by weight of silver pigment chips with particle sizes of 5 to 25 μm per 100 parts by weight of the silver binder. Furthermore, a transparent smoke print layer was formed by screen printing using an ink containing a medium ink and a black ink in a ratio of 40:1.

[0073] <Experimental Example 2> A printed material was produced by sequentially depositing a first-color pattern layer, a second-color pattern layer, a white pattern layer, and a transparent smoke print layer on a transparent PET substrate. In Experimental Example 2, the first-color pattern layer was formed by screen printing using an ink containing a first-color binder (urethane resin) and red and gold interference pigments dispersed within the first-color binder. The red and gold interference pigment contents were as follows, per 100 parts by weight of the first-color binder: 8 parts by weight of a red interference pigment having a particle size of 10 to 40 μm, 2 parts by weight of a red interference pigment having a particle size of 5 to 25 μm, 5 parts by weight of a gold interference pigment having a particle size of 10 to 60 μm, and 2 parts by weight of a gold interference pigment having a particle size of 5 to 25 μm.

[0074] In Experimental Example 2, a second color pattern layer was formed by screen printing using an ink containing a second color binder (urethane resin) and a green interference pigment dispersed within the second color binder. The content of the green interference pigment was 4 parts by weight, with a particle size of 10 to 40 μm, for every 100 parts by weight of the second color binder. The red interference pigment, gold interference pigment, and green interference pigment were all titanium dioxide-coated mica.

[0075] In Experimental Example 2, a white pattern layer was formed by screen printing using an ink containing a silver binder (urethane resin) and silver pigment chips dispersed within the silver binder. The silver pigment chip content was 1 part by weight of silver pigment chips with particle sizes of 5 to 25 μm per 100 parts by weight of the silver binder. Furthermore, a transparent smoke print layer was formed by screen printing using an ink containing a medium ink and a black ink in a ratio of 40:1.

[0076] <Experimental Example 3> A printed material was produced by sequentially depositing a first color pattern layer, a second color pattern layer, and a transparent smoke print layer on a transparent PET substrate. In Experimental Example 3, the first color pattern layer was formed by screen printing using an ink containing a first color binder (urethane resin) and a green interference pigment dispersed within the first color binder. The green interference pigment content was 4 parts by weight of a green interference pigment having a particle size of 10 to 40 μm and 1 part by weight of a green interference pigment having a particle size of 5 to 25 μm, relative to 100 parts by weight of the first color binder.

[0077] In Experimental Example 3, a second color pattern layer was formed by screen printing using an ink containing a second color binder (urethane resin) and red and gold interference pigments dispersed within the second color binder. The red and gold interference pigment contents were 8 parts by weight of red interference pigment with a particle size of 10 to 40 μm and 5 parts by weight of gold interference pigment with a particle size of 10 to 60 μm, relative to 100 parts by weight of the second color binder.

[0078] In Experimental Example 3, a transparent smoke print layer was formed by screen printing using a mixture of medium ink and black ink in a ratio of 40:1.

[0079] <Item 1: Clarity of displayed content> When the power of the LCD monitor was turned on, the clarity of the images and characters displayed on the LCD monitor was evaluated. <Score> 5 points: The image has little presence compared to the image and text displayed on the LCD monitor, and the image and text appear clear. 3 points: The image is somewhat strong compared to the image and text displayed on the LCD monitor, and the image appears to overlap the image and text slightly. 1 point: The image has a strong presence compared to the image and text displayed on the LCD monitor, and the image appears to overlap the image and text.

[0080] <Item 2: Brightness of the displayed content> When the power of the LCD monitor was turned on, the brightness of the images and characters displayed on the LCD monitor was evaluated. <Score> 5 points: Images and text displayed on the LCD monitor appear bright. 3 points: Images and text displayed on the LCD monitor appear slightly dark. 1 point: The image and text displayed on the LCD monitor appear quite dark.

[0081] <Item 3: Effects of black LCD monitors> The influence of the black LCD monitor on the image was evaluated when the LCD monitor was turned off. <Score> 5 points: There is no influence of the black color of the LCD monitor, and the image is clearly visible. 3 points: The influence of the black color of the LCD monitor is slightly noticeable, making the image appear slightly dark and muted (slightly high transparency). 1 point: The influence of the black color of the LCD monitor is evident, making the image appear quite dark and sunken (high transparency).

[0082] <Item 4: Color development of the pattern> The color development of the image was evaluated when the power of the LCD monitor was turned off. <Score> 5 points: The color of the pattern is good. 3 points: The color of the pattern is slightly weak and the color of the pattern appears pale (whitish). 1 point: The color of the pattern is weak and the color of the pattern appears white.

[0083] The results of the sensory evaluation of items 1 to 4 for Experimental Examples 1 to 3 are shown in Table 1 below. Any evaluation of 3 points or higher was deemed acceptable for practical use. Experimental Example 1 showed that the influence of the black LCD monitor on the image was fairly low, and the image visibility tended to be displayed at a sufficiently high level. High evaluation results were also obtained for the color development of the image and the clarity and brightness of the image and text display. Meanwhile, Experimental Examples 2 and 3 showed that the influence of the black LCD monitor on the image was kept low, while the color development of the image and the clarity and brightness of the image and text display tended to be generally good.

[0084] [Table 1]

[0085] [Third example] [Example 3-1] The printed matter and display device according to this example may have the same configuration as that shown in Fig. 1. Therefore, in the printed matter and display device according to this example, the description of the same configuration as that of the printed matter and display device of Example 1-1 will be omitted. The printed matter and display device according to this example employ the layer configuration shown in Fig. 9 instead of the layer configuration shown in Fig. 2.

[0086] The first color pattern layer 10 can be formed on the surface 4a by, for example, screen printing, inkjet printing, gravure printing, or offset printing. As shown in FIG. 9 , the first color pattern layer 10 is composed of a plurality of first color dots 11. Here, "dot" refers to a point that constitutes a printed image. The shape of the dot is not limited to a circle, and it can be a rectangle, a polygon, or other shape. Each of the plurality of first color dots 11 contains a first color binder 12 and a plurality of first color pigment chips 13 dispersed within the first color binder 12. The content of the plurality of first color pigment chips 13 is, for example, in the range of 0.5 to 20 parts by weight, assuming the first color binder 12 is 100 parts by weight. In this case, the image of the first color pattern layer 10 is well expressed, while the deterioration of the coating property and transparency of the first color pattern layer 10 can be suppressed.

[0087] In Example 3-1, the multiple first color pigment chips 13 are interference pigments 14 (first interference pigments) that generate monochromatic interference light of a predetermined color. The interference pigments 14 are composed of flakes (not shown) that are transparent to visible light and a metal oxide film (not shown) that covers the flakes. Light incident on the first color pattern layer 10 from the translucent substrate 4 side that is reflected on the surface of the metal oxide film interferes with light that passes through the metal oxide film and is reflected on the surface of the flakes, generating interference light. Adjusting the film thickness and refractive index of the metal oxide film allows for the generation of interference light having a desired wavelength.

[0088] When incident light E is incident on the first color pattern layer 10, monochromatic interference light 15 (first interference light) is generated from the interference pigment 14. As a result, the interference pigment 14 exhibits a monochromatic color.

[0089] The second color pattern layer 20 can be formed on the first color pattern layer 10 by, for example, screen printing, inkjet printing, gravure printing, or offset printing. As shown in FIG. 9 , the second color pattern layer 20 is composed of a plurality of second color dots 21. Here, "dot" refers to a point that constitutes a printed image. The shape of the dot is not limited to a circle, and it may be rectangular, polygonal, or other shapes. Each of the plurality of second color dots 21 contains a second color binder 22 and a plurality of second color pigment chips 23 dispersed within the second color binder 22. The content of the plurality of second color pigment chips 23 is, for example, in the range of 0.5 to 20 parts by weight, assuming the second color binder 22 is 100 parts by weight. This allows the image of the second color pattern layer 20 to be well expressed while preventing a decrease in the coating properties and transparency of the second color pattern layer 20.

[0090] When incident light E is incident on the second color pattern layer 20, the interference pigment 24 (second interference pigment) generates monochromatic interference light 25 (second interference light). As a result, the interference pigment 24 exhibits a monochromatic color. The interference pigment 24 may be any interference pigment that generates monochromatic interference light 25 that is different from the color exhibited by the interference pigment 14.

[0091] The total light transmittance of the printed matter 2 is, for example, 30% to 70%. The total light transmittance here refers to the value measured using a spectrophotometer (for example, a UV-2100 spectrophotometer manufactured by Shimadzu Corporation). If the total light transmittance is 30% or more, when the printed matter 2 is placed in front of a screen, the light from the image on the screen makes it difficult to see the picture printed layer 5, and the image is more clearly visible. If the total light transmittance is 70% or less, the image in the picture printed layer 5 does not appear too dark even when the screen is black.

[0092] Next, the color combinations in the picture-printed layer 5 will be described with reference to Fig. 10 and Fig. 11. Fig. 10(a) is a schematic diagram showing the color combinations of the picture-printed layer 5. Fig. 10(b) is a schematic diagram showing the color combinations of the picture-printed layer 105 according to a comparative example. Fig. 11 is a schematic diagram showing specific examples of color combinations of the picture-printed layer 5.

[0093] As shown in FIG. 10(a), the first color pattern layer 10 contains an interference pigment of a single color "color A," thereby generating interference light of the single color "color A." The second color pattern layer 20 contains an interference pigment of a single color "color B," thereby generating interference light of the single color "color B." Color B is a different color from color A. Therefore, in the printed matter 2, the pattern is expressed by additively mixing the interference light of color A and the interference light of color B.

[0094] In the example shown in FIG. 11(a), "gold" is used as color A of the first color pattern layer 10, and "red" is used as color B of the second color pattern layer 20. The printed matter 2 may express a wood grain pattern as a design by additively mixing gold and red. The gold color of the first color pattern layer 10 can express a light wood grain. In this case, the interference pigment 14 shown in FIG. 9 is, for example, a gold interference pigment (gold pearl pigment). The interference light 15 represents gold. The interference pigment 24 is, for example, a red interference pigment (red pearl pigment). The interference light 25 represents red.

[0095] In the example shown in FIG. 11(b), "red" is used as color A of the first color pattern layer 10, and "gold" is used as color B of the second color pattern layer 20. The printed matter 2 may express a wood grain pattern as a design by additively mixing red and gold. By using red for the first color pattern layer 10, it is possible to express a wood grain pattern with a slightly reddish hue.

[0096] In the example shown in FIG. 11(c), "silver" is used as color A of the first color pattern layer 10, and "gold" is used as color B of the second color pattern layer 20. The printed matter 2 may express a hairline pattern as a design by additively mixing silver and gold. By making the second color pattern layer 20 gold, the usual stainless steel hairline can be adjusted to a gold tone. The interference pigment 14 shown in FIG. 9 is, for example, a silver interference pigment (silver pearl pigment). The interference light 15 indicates silver.

[0097] In the example shown in FIG. 11(d), "silver" is used as color A of the first color pattern layer 10, and "red" is used as color B of the second color pattern layer 20. The printed matter 2 may express a hairline pattern as a design by additively mixing silver and red. By using red for the second color pattern layer 20, the stainless steel hairline can be adjusted to a bronze tone.

[0098] In the example shown in FIG. 11(e), "gold" is used as color A of the first color pattern layer 10, and "silver" is used as color B of the second color pattern layer 20. The printed matter 2 may express a hairline pattern as a design by additively mixing gold and silver. By making the first color pattern layer 10 gold (or a color containing gold), a finish that further emphasizes the gold tone can be achieved.

[0099] In the printed matter 2 according to Example 3-1 described above, the first color pattern layer 10 contains an interference pigment 14 that generates a monochromatic interference light 15, and the second color pattern layer 20 contains an interference pigment 24 that generates a monochromatic interference light 25 that is different in color from the interference pigment 14. Here, as a comparative example, a printed matter 102 is shown in FIG. 10(b), in which the first color pattern layer 10 contains interference pigments of color X and color Y, and the second color pattern layer 20 contains an interference pigment of color Z. For example, to express a pattern such as that described in FIG. 11 using the configuration of the comparative example, it is necessary to adjust the three colors X, Y, and Z, which requires time-consuming color matching and registration during printing. On the other hand, for a pattern that can be expressed with a small number of colors, as in the printed matter 2 according to this example, by limiting the interference pigments contained in the first color pattern layer 10 and the second color pattern layer 20 to a single color, the pattern can be expressed using only the intensity of the single color. In this way, color matching and registration during printing can be simplified. Therefore, this printed matter 2 can simplify color matching and registration work during printing.

[0100] In the third example, the configurations according to Examples 1-2 to 1-4 in the first example may also be adopted.

[0101] [Example 4] [Example 4-1] The printed matter and display device according to this example may have the same configuration as that shown in Fig. 1. Therefore, in the printed matter and display device according to this example, the description of the same configuration as that of the printed matter and display device of Example 1-1 will be omitted. The printed matter and display device according to this example employ the layer configuration shown in Fig. 12 instead of the layer configuration shown in Fig. 2.

[0102] The first color pattern layer 10 can be formed on the surface 4a by, for example, screen printing, inkjet printing, gravure printing, or offset printing. As shown in FIG. 12, the first color pattern layer 10 is composed of a plurality of first color dots 11. Here, "dot" refers to a point that constitutes a printed image. The shape of the dot is not limited to a circle, and it can be a rectangle, a polygon, or other shape. Each of the plurality of first color dots 11 contains a first color binder 12 and a plurality of first color pigment chips 13 dispersed within the first color binder 12. The content of the plurality of first color pigment chips 13 is, for example, in the range of 0.5 to 20 parts by weight, assuming the first color binder 12 is 100 parts by weight. In this case, the image of the first color pattern layer 10 is well expressed, while the coating property and transparency of the first color pattern layer 10 are prevented from being deteriorated.

[0103] In Example 4-1, the multiple first color pigment chips 13 are interference pigments 14 (second interference pigments) that generate monochromatic interference light of a predetermined color. The interference pigments 14 are the same color as one of the interference pigments 24a and 24b (first interference pigments) described below. The interference pigments 14 are composed of flakes (not shown) that are transparent to visible light and a metal oxide film (not shown) that covers the flakes. Light incident on the first color pattern layer 10 from the translucent substrate 4 side is reflected by the surface of the metal oxide film, and light that passes through the metal oxide film and is reflected by the surface of the flakes interferes with each other to generate interference light. Adjusting the film thickness and refractive index of the metal oxide film allows for the generation of interference light with a desired wavelength.

[0104] When incident light E is incident on the first color pattern layer 10, monochromatic interference light 15 (second interference light) is generated from the interference pigment 14. As a result, the interference pigment 14 exhibits a monochromatic color.

[0105] The second color pattern layer 20 can be formed on the first color pattern layer 10 by, for example, screen printing, inkjet printing, gravure printing, or offset printing. As shown in FIG. 12 , the second color pattern layer 20 is composed of a plurality of second color dots 21. Here, the term "dot" refers to a point that constitutes a printed image. The shape of the dot is not limited to a circle, and it may be rectangular, polygonal, or other shapes. Each of the second color dots 21 contains a second color binder 22 and a plurality of second color pigment chips 23 dispersed within the second color binder 22. The content of the second color pigment chips 23 is, for example, in the range of 0.5 to 20 parts by weight, assuming the second color binder 22 is 100 parts by weight. This allows the image of the second color pattern layer 20 to be well-expressed while preventing a decrease in the coating properties and transparency of the second color pattern layer 20.

[0106] In Example 4-1, the multiple second color pigment chips 23 are interference pigments 24a, 24b of multiple colors that generate different interference light from each other. Each of the interference pigments 24a, 24b is composed of a thin flake (not shown) that is transparent to visible light and a metal oxide film (not shown) that covers the thin flake. Light incident on the second color pattern layer 20 from the translucent substrate 4 side that is reflected on the surface of the metal oxide film interferes with light that passes through the metal oxide film and is reflected on the surface of the flake, generating interference light. Adjusting the film thickness and refractive index of the metal oxide film allows generation of interference light with a desired wavelength.

[0107] In Example 4-1, the interference pigments 24a and 24b are titanium dioxide-coated mica. The particle size range of the titanium dioxide-coated mica includes, for example, a range of 25 μm to 60 μm. Here, "particle size" refers to the longest diameter of the particle cross section. The flakes that make up the interference pigments 24a and 24b may be made of materials other than mica, such as silica, alumina, glass, or polysilicate. The metal oxide films that make up the interference pigments 24a and 24b may be made of materials other than titanium dioxide, such as zirconium oxide, zinc oxide, iron oxide, or tin oxide.

[0108] When incident light E enters the second color pattern layer 20, the interference pigments 24a, 24b generate different interference lights 125a, 125b (first interference lights), respectively. That is, the wavelengths of the interference lights 125a, 125b are different from each other. As a result, the interference pigments 24a, 24b exhibit a mixed color. The blending amounts of the interference pigments 24a, 24b may be the same or different from each other. The interference pigment 24a may be an interference pigment that generates interference light 125a of the same single color as the single color exhibited by the interference pigment 14. Note that the interference pigment 24b may be an interference pigment that generates interference light 126b of the same single color as the single color exhibited by the interference pigment 14.

[0109] The total light transmittance of the printed matter 2 is, for example, 30% to 70%. The total light transmittance here refers to the value measured using a spectrophotometer (for example, a UV-2100 spectrophotometer manufactured by Shimadzu Corporation). If the total light transmittance is 30% or more, when the printed matter 2 is placed in front of a screen, the light from the image on the screen makes it difficult to see the picture printed layer 5, and the image is more clearly visible. If the total light transmittance is 70% or less, the image in the picture printed layer 5 does not appear too dark even when the screen is black.

[0110] Next, the color combinations in the picture-printed layer 5 will be described with reference to Fig. 13 and Fig. 14. Fig. 13(a) and (b) are schematic diagrams showing the color combinations of the picture-printed layer 5. Fig. 13(c) is a schematic diagram showing the color combinations of the picture-printed layer 105 according to a comparative example. Fig. 14 is a schematic diagram showing specific examples of color combinations of the picture-printed layer 5.

[0111] As shown in FIG. 13(a), the first color pattern layer 10 contains an interference pigment of a single color "color A," thereby generating interference light of the single color "color A." The second color pattern layer 20 contains interference pigments of a single color "color A" and a single color "color B," thereby generating interference light of a mixture of "color A" and "color B." Color B is a different color from color A. Therefore, in the printed matter 2, the pattern is expressed by additively mixing the interference light of color A and the interference light of colors A and B.

[0112] Alternatively, as shown in FIG. 13(b), the second color pattern layer 20 contains an interference pigment of a single color "color A," thereby generating interference light of the single color "color A." The first color pattern layer 10 contains interference pigments of a single color "color A" and a single color "color B," thereby generating interference light of a mixture of "color A" and "color B." Color B is a different color from color A. Therefore, in the printed matter 2, the pattern is expressed by additively mixing the interference light of color A and the interference light of colors A and B.

[0113] In the example shown in FIG. 14(a), "gold" is used as color A of the first color pattern layer 10, and "gold" and "red" are used as color A and color B of the second color pattern layer 20, respectively. The printed matter 2 may express a wood grain pattern as a design by additively mixing gold and red. The gold color of the first color pattern layer 10 can express a light wood grain. In this case, the interference pigment 14 and interference pigment 24a shown in FIG. 12 are, for example, gold interference pigments (gold pearl pigments). The interference light 15 and interference light 125a represent gold. The interference pigment 24b is, for example, a red interference pigment (red pearl pigment). The interference light 126b represents red.

[0114] In the example shown in FIG. 14(b), "red" is used as color A of the first color pattern layer 10, and "red" and "gold" are used as color A and color B of the second color pattern layer 20. The printed matter 2 may express a wood grain pattern as a design by additively mixing red and gold. By using red for the first color pattern layer 10, it is possible to express a wood grain pattern with a slightly reddish tint.

[0115] In the example shown in FIG. 14(c), "silver" is used as color A of the first color pattern layer 10, and "silver" and "gold" are used as color A and color B of the second color pattern layer 20, respectively. The printed matter 2 may express a hairline pattern as a design by additively mixing silver and gold. By including gold in the second color pattern layer 20, the usual stainless steel hairline can be adjusted to a gold tone. The interference pigment 14 and interference pigment 24a shown in FIG. 12 are, for example, silver interference pigments (silver pearl pigments). The interference light 15 and interference light 126a indicate silver.

[0116] In the example shown in FIG. 14(d), "silver" is used as color A of the first color pattern layer 10, and "silver" and "red" are used as color A and color B of the second color pattern layer 20. The printed matter 2 may express a hairline pattern as a design by additively mixing silver and red. By including red in the second color pattern layer 20, the stainless steel hairline can be adjusted to a bronze tone.

[0117] In the example shown in FIG. 14(e), "silver" is used as color A and "gold" as color B of the first color pattern layer 10, and "silver" is used as color A of the second color pattern layer 20. The printed matter 2 may express a hairline pattern as a design by additively mixing gold and silver. By including gold (or a color containing gold) in the first color pattern layer 10, a finish that further emphasizes the gold tone can be achieved.

[0118] In the printed matter 2 according to Example 4-1 described above, either the first color pattern layer 10 or the second color pattern layer 20 contains interference pigments of multiple colors that generate interference light of different colors A and B, thereby achieving a three-dimensional image even with a small number of printed layers. Furthermore, in this printed matter 2, only one of the first color pattern layer 10 or the second color pattern layer 20 needs to contain the interference pigment that generates multiple interference light, thereby simplifying color matching and registration during printing. Meanwhile, the other of the first color pattern layer 10 or the second color pattern layer 20 contains an interference pigment that generates interference light of a single color, color A, that is the same as one of the multiple interference pigments. Here, as a comparative example, a printed matter 102 is shown in FIG. 13(c), in which the first color pattern layer 10 contains interference pigments of colors X and Y and the second color pattern layer 20 contains an interference pigment of color Z. For example, when creating a pattern like the one shown in Figure 14 using the comparative example configuration, it is necessary to adjust three colors, X, Y, and Z, which requires a lot of work for color matching and registration during printing. On the other hand, for patterns that can be created with a limited number of colors, such as those shown in Figure 14, the interference pigments in the first color pattern layer 10 and the second color pattern layer 20 can be limited to the same single color A, allowing the pattern to be created by varying the intensity of the single color A. Furthermore, when it is desired to emphasize the color A, using two layers, the first color pattern layer 10 and the second color pattern layer 20, makes it easier to adjust the color than adjusting it using only one color pattern layer. Furthermore, while adding too much interference pigment to one color pattern layer reduces the strength of the coating film, using two color pattern layers 10 and 20 can minimize this decrease in strength. As a result, color matching and registration during printing can be simplified.

[0119] In the fourth example, the configurations according to Examples 1-2 to 1-4 in the first example may also be adopted.

[0120] The printed matter and the display device are not limited to the above-described examples, and various other modifications are possible.

[0121] The printed matter may be a sheet in which a pattern layer and a concealing layer are laminated. The concealing layer is a layer that conceals the color of the display device when an image is not displayed, while transmitting the image when an image is displayed. The concealing layer is set to a predetermined range of visible light transmittance. An opening is formed in the concealing layer. The concealing layer may be printed using an inkjet device, for example, with a white ink containing titanium oxide. Specifically, the concealing layer may be printed, for example, in solid white, on the back of the pattern layer. An example of a printing method is an inkjet device, but is not limited to this. In addition to inkjet printing, various printing methods such as gravure printing, offset printing, letterpress printing, flexographic printing, screen printing, and electrostatic printing may be used to form the concealing layer. The printing method is not limited to the above-mentioned printing methods, and any conventionally known image forming method can be used, such as hand-drawing, ink-flowing, transfer printing, photography, electrophotography, photosensitive resin printing, vacuum deposition, chemical etching, thermal coloring, and discharge breakdown printing. The design layer is formed on the surface of the concealing layer using a printing method and is provided for the purpose of imparting design to the printed matter. The design layer may be applied to the entire surface as long as it has a certain degree of light transparency. Unlike the concealing layer, the design layer does not require the provision of openings, allowing for highly precise designs. Specifically, the design layer can be printed using an inkjet device, and the desired pattern may be printed using four colors of printing ink, for example, cyan, magenta, yellow, and black. Although an inkjet device has been exemplified as a method for printing the design layer, this is not limited thereto, and various printing methods can be applied, as with the concealing layer. The printed matter can adopt any known structure as long as it can exhibit the above-mentioned functions.

[0122] The concealment and visibility of the printed material 2 will be described in more detail with reference to FIG. 15 . Note that the description based on FIG. 15 is merely an example of a usage mode used to explain the properties of the printed material 2. Therefore, the present disclosure is not limited to such a usage mode. FIGS. 15(a) and 15(b) are views of the front side of a light source 3 covered with the printed material 2. FIG. 15(a) shows the state when the light source 3 is turned off. FIG. 15(b) shows the state when the light source 3 is turned on. A wood grain pattern is used as the design of the printed material 2. A display device is used as the light source 3. The area of ​​the printed material 2 that covers the light source 3 is referred to as the display area DE. As shown in FIG. 15(a), when the light source 3 is turned off, the light source 3 is concealed by the design of the printed material 2. The printed material 2 conceals the light source 3 not with a light-blocking layer that blocks light, but with the light-transmitting design layer itself. Therefore, the visual information V1 displayed in the display area DE is the image of the printed matter 2. At this time, the viewer cannot see the display surface (black screen) of the light source 3 or the outline of the light source 3 from outside the printed matter 2. The visual information V1 visible in the display area DE and the visual information V2 visible in the area surrounding the display area DE are the same image of the printed matter 2. Therefore, the viewer cannot see the existence of the light source 3 from outside the printed matter 2.

[0123] As shown in FIG. 15(b), when the power supply of the light source 3 is ON, the light source 3 emits light and projects an arbitrary image GF onto the display surface. Here, the letter "X" printed on a monochrome background is used as the image GF. In the display area DE, the light of the image GF passes through the printed material 2. As a result, the viewer views the image GF by visually recognizing the transmitted light in the display area DE. Therefore, the visual information V3 displayed in the display area DE is the image GF projected by the light source 3. The content of the visual information V3 may include information not included in the content of the visual information V1. In this case, the visual information V3 may be composed only of light that has passed through the image of the printed material 2.

[0124] For example, as a comparative example, a sheet that displays the visual information "X" using a light source may be provided in which a portion of a light-shielding layer is cut out in the shape of an "X" to form a light-transmitting layer (different from the printed matter 2 of the present embodiment). Visual information V3 obtained using such a sheet and a light source such as a lamp has a background portion formed from a pattern on the surface of the light-shielding layer, and the "X" portion is formed from light from the light source that has passed through the light-transmitting layer. Another comparative example is a sheet in which a light-shielding layer in the shape of an "X" is formed on a portion of the light-transmitting layer. Visual information V3 obtained using such a sheet has a background portion formed from light from the light source that has passed through the light-transmitting layer, and the "X" portion is formed from a pattern on the surface of the light-shielding layer. In the comparative example, visual information V3 is provided by a combination of light that has passed through the sheet and light reflected from the surface of the sheet in the areas where the light is blocked. Furthermore, when a sheet such as the comparative example is used, the "X" shape is formed on the sheet itself in a manner that allows it to be seen even when the light source is turned off, so the visual information V1 also contains the content of "X." Therefore, the content of visual information V3 is already included in visual information V1.

[0125] Unlike a sheet using a light-shielding layer as in the comparative example, the visual information V3 in Fig. 15(b) using the printed matter 2 is entirely composed of light transmitted through the printed matter 2. Note that the entire printed matter 2 shown in Fig. 15 may be composed of a layer forming a light-transmitting pattern, or at least the entire display area DE may be composed of a layer forming a light-transmitting pattern. However, the printed matter 2 may also have a light-shielding layer provided in part of the display area DE, or a light-shielding layer provided in part of an area other than the display area DE.

[0126] Some display devices form a pattern in anticipation of the content of the image from the light source 3, and when the light source 3 is turned on, form visual information V3 by combining the pattern and the image. In the example shown in FIG. 15, the purpose is to make the presence of the light source 3 invisible from the outside, so the visual information V3 in FIG. 15(b) differs from the visual information V3 formed by such a combination. However, depending on the brightness of the image and the color of a certain area, it is acceptable for a faint pattern to be reflected in all or part of the visual information V3. Furthermore, for purposes different from those shown in FIG. 15, a combination of the pattern and the image of the printed material 2 may be used as visual information V3. If a touch panel is used as the light source 3, the user operates the touch panel via the printed material 2. Therefore, the printed material 2 may be set to a thickness, material, and hardness that do not interfere with touch panel operation.

[0127] The printed matter 2 and light source 3 described above can be used in a vehicle door. FIGS. 16(a) and 16(b) are perspective views showing a vehicle according to one embodiment. FIG. 17 is a view showing an example of a cross section of a vehicle. As shown in FIGS. 16(a) and 16(b), a door of a vehicle 50 is provided with a locking unit 62. The locking unit 62 is a member that locks the door. The locking unit 62 can switch between a locked state and an unlocked state based on an electrical signal. A known door lock mechanism can be used as such a locking unit 62. The locking unit 62 unlocks the door based on the operation of the operation unit 53. The locking unit 62 may also lock the door through a user's operation.

[0128] As shown in Figures 16(a) and 16(b) and 17, a vehicle 50 includes a vehicle body 52. ​​An operation unit 53 is disposed on the surface side of the vehicle body 52. ​​The surface side of the vehicle body 52 means the outside of the vehicle 50. The operation unit 53 corresponds to the light source 3 described above. The operation unit 53 is a part where an operation for unlocking the locking unit 62 is performed. In Figures 16(a) and 16(b), the operation unit 53 is provided on the door, but the operation unit 53 may be provided in a position other than the door.

[0129] The printed matter 2 described above is placed on the surface side of the operation unit 53. The surface side of the operation unit 53 means the outside of the vehicle 50. A color is printed on the printed matter 2. The color is, for example, a uniform color that matches the paint color of the vehicle. A pattern may be printed on the printed matter 2. The pattern is not particularly limited, and patterns such as wood grain patterns, abstract patterns, illustrations, etc. may be used.

[0130] The printed material 2 is disposed so as to cover the operation unit 53. As shown in FIGS. 16(a) and 16(b), the area of ​​the printed material 2 that covers the operation unit 53 becomes the display area DE (see also FIG. 15). The printed material 2 transmits light from the operation unit 53 when the operation unit 53 is illuminated. The printed material 2 conceals the operation unit 53 with the color of the printed material 2 when the operation unit 53 is turned off. FIG. 16(a) shows the state when the operation unit 53 is turned off. As shown in FIG. 16(a), the display area DE conceals the operation unit 53 and displays the color of the printed material 2 as visual information V1. FIG. 16(b) shows the state when the operation unit 53 is illuminated. As shown in FIG. 16(b), the display area DE displays light that has passed through the printed material 2 from the operation unit 53 as visual information V3.

[0131] The operation unit 53 may be used to input authentication information for unlocking the locking unit 62. An authentication board for inputting a personal identification number, such as that shown in FIGS. 18(a) and 18(b), may be used as the operation unit 53. FIGS. 18(a) and 18(b) are diagrams illustrating an example of visual information V3 displayed in the display area DE shown in FIG. 16(b). In this case, the operation unit 53 has a plurality of buttons 70 for inputting a personal identification number. The operation unit 53 is also capable of emitting light. The operation unit 53 may be, for example, a display device such as a touch panel. When a display device is used as the operation unit 53, the operation unit 53 displays an image 71 of an authentication board (see FIG. 18(a)). The image 71 of the authentication board has objects 72 of a plurality of buttons 70. When the display surface on which the objects 72 of the buttons 70 are displayed is pressed, the operation unit 53 acquires the number corresponding to the button 70 as input information. Alternatively, the operation unit 53 may be an input device that has actual buttons 73 (see FIG. 18(b)) instead of images, and the actual buttons 73 themselves emit light. The operation unit 53 may be configured by combining a display device and an actual input device.

[0132] The operation unit 53 is not limited to an authentication board for inputting a password, and any authentication mechanism may be employed as long as it is possible to input information that can be used to determine whether or not the locking unit 62 can be unlocked. For example, the operation unit 53 may be a reading unit that reads identification information from an information storage medium (such as an ID card). In this case, the user simply holds the information storage medium over the operation unit 53. The operation unit 53 may also be a biometric authentication unit that reads biometric authentication information. In this case, the user may hold their hand over the operation unit 53 to have their fingerprint read, or may bring their face close to the operation unit 53 to perform facial authentication. Even when these authentication mechanisms are employed, the operation unit 53 may display an image of the authentication mechanism on a display device, or may employ an input device having a real, light-emitting authentication mechanism.

[0133] A key may also be used as the operation unit 53. FIG. 19 is a diagram showing another example of a cross section of a vehicle door. As shown in FIG. 19, a tiny through-hole 74 is provided in the printed material 2 and the operation unit 53A only at a location corresponding to the keyhole, and the rest of the exterior of the key is concealed by the printed material 2. For example, by providing the keyhole at a position away from the door handle, it becomes difficult for an intruder to recognize where the keyhole is located. The operation unit 53 makes it easy to recognize the position of the keyhole from outside the printed material 2 by illuminating the structure around the keyhole.

[0134] Fig. 20 is a block diagram showing the configuration of a vehicle locking system according to one embodiment. As shown in Fig. 20, a vehicle locking system 80 is mounted on a vehicle 50. The vehicle locking system 80 includes a sensor 82, a communication unit 83, an ECU (Electronic Control Unit) 84 (an example of a control unit), a locking unit 62, and an operation unit 53. Note that the vehicle locking system 80 may include the sensor 82 and the communication unit 83 as needed.

[0135] The sensor 82 is an on-board sensor, such as a camera, a radar, or a combination thereof.

[0136] The communication unit 83 is a device that communicates with the outside of the vehicle. The communication unit 83 is configured to be able to receive infrastructure information. The infrastructure information includes images of the surroundings of the vehicle 50. The communication unit 83 may be configured to be able to connect to a user's device such as a smartphone via near field communication.

[0137] The ECU 84 is a device that controls the vehicle locking system 80. The ECU 84 is an electronic control unit that has a processor such as a CPU (Central Processing Unit), storage media such as a ROM (Read Only Memory) and a RAM (Random Access Memory), and a communication circuit such as a CAN (Controller Area Network). The ECU 84 is connected to the sensor 82, the communication unit 83, the locking unit 62, and the operation unit 53. The ECU 84 is configured to perform the functions described below by the processor running a program stored in the storage medium.

[0138] The ECU 84 causes the operation unit 53 to emit light. As described above, the operation unit 53 is, for example, a touch display device. When a touch display device is used as the operation unit 53, the ECU 84 causes the operation unit 53 to display an operation image related to unlocking. The ECU 84 outputs a power-on signal and an operation image to the operation unit 53, causing the operation unit 53 to display and emit light from the operation image. When the operation unit 53 is caused to emit light by the ECU 84, the printed matter 2 transmits light emitted from the operation unit 53, making the operation image visible from outside the vehicle. When the operation unit 53 is not emitting light, the operation unit 53 is concealed by the color of the printed matter 2, thereby ensuring the design of the vehicle 50.

[0139] When an authorized person makes an input to the operation image of the operation unit 53, the operation unit 53 transmits an input signal to the ECU 84. When the ECU 84 receives the input signal from the operation unit 53, it transmits the input signal to the off-vehicle server 90 and requests authentication. When the ECU 84 receives information from the off-vehicle server 90 that authentication of the authorized person has been completed, it transmits a command signal to the locking unit 62. When the locking unit 62 receives the command signal from the ECU 84, it unlocks the doors.

[0140] The ECU 84 may detect the presence of an authorized person who has the authority to unlock the door and cause the operation unit 53 to emit light. The ECU 84 detects the presence of the authorized person based on image analysis of the authorized person or identification information held by the authorized person. As an example, the ECU 84 performs facial recognition based on camera images acquired from the sensor 82, infrastructure information acquired from the communication unit 83, etc., to detect the presence of the authorized person. The ECU 84 may detect the presence of the authorized person by reading an information storage medium (such as an ID tag) that stores identification information through proximity communication by the communication unit 83. The communication unit 83 may automatically read the identification information when the information storage medium approaches within a certain distance. The ECU 84 causes the operation unit 53 to emit light when the presence of the authorized person is detected. This allows the authorized person to operate the operation unit 53.

[0141] Next, the operation and effect of the vehicle 50 and vehicle locking system 80 according to this embodiment will be described.

[0142] In the vehicle 50 and the vehicle locking system 80, when the operation unit 53 emits light, the light emitted from the operation unit 53 passes through the printed material 2. Therefore, even when the front side of the operation unit 53 is covered by the printed material 2, the authorized person can see the operation unit 53 through the light that passes through the printed material 2 and perform the door unlocking operation. When the operation unit 53 does not emit light, the operation unit 53 is concealed by the color of the printed material 2. By preventing the operation unit 53 from emitting light except when an authorized person is unlocking the door, the position of the operation unit 53 can be made invisible by the color of the printed material 2. In this case, people other than the authorized person cannot perform the unlocking operation. Therefore, the vehicle 50 and the vehicle locking system 80 can improve the security of the vehicle 50's doors. Furthermore, because the operation unit 53 can be concealed, the exterior of the door can have a smart appearance. Therefore, even when the vehicle locking system 80 is adopted, the design of the vehicle 50 can be prevented from being impaired.

[0143] In the vehicle 50 and the vehicle locking system 80, by employing a door provided with the operation unit 53 and the printed matter 2, the security of the door of the vehicle 50 can be easily improved.

[0144] In the vehicle 50 and vehicle locking system 80, the operation unit 53 can be made visible upon detecting the presence of an authorized person, further improving the security of the vehicle door. For example, even if an unauthorized person approaches the vehicle 50, the detection unit 56 will not detect them as an authorized person. Therefore, the operation unit 53 does not emit light and remains concealed by the color of the printed material 2. In this case, an unauthorized person cannot find the keyhole even if they try to destroy (pick) the lock, and cannot find the authentication board even if they try to analyze the PIN. Therefore, an unauthorized person cannot perform any unauthorized operations to unlock the vehicle 50, and is forced to give up on unlocking the vehicle 50. Furthermore, the ability to conceal the keyhole allows for a wider range of designs.

[0145] The vehicle 50 and the vehicle locking system 80 may detect the presence of an authorized person based on information with a lower security level than the information input by the operation unit 53. For example, even if the presence of an authorized person is detected by image analysis, an unauthorized person may be disguised as an authorized person. Even if the detection unit 56 detects the presence of an authorized person using an ID tag or the like, there is a possibility that the ID tag may have been stolen. Therefore, the operation unit 53 can increase the security level of door unlocking by requesting the input of a regularly updated password or a dedicated ID card with a high security level.

[0146] The present disclosure is not limited to the above-described embodiments.

[0147] For example, in the vehicle 50 and the vehicle locking system 80, the operation unit 53 and the printed matter 2 may be provided in a position other than the door. In this case, it is possible to make it difficult for people other than authorized personnel to find the operation unit 53. Typically, the operation unit 53 for unlocking is provided near the door handle. However, if the operation unit 53 is provided in a position far away from the door handle, it will be impossible to find the operation unit 53 even if the door is examined.

[0148] It should be noted that the vehicle 50 and the vehicle locking system 80 may omit detecting the presence of an authorized person. For example, only the authorized person may know the location of the operation unit 53, and the operation unit 53 may emit light when the authorized person touches the operation unit 53 in a concealed state. Alternatively, concealed operation units 53 may be provided in multiple locations, and the operation units 53 that can be used for input may be periodically updated. In this case, even if an unauthorized person knows the location of only one operation unit 53, the operation units 53 that can be used for input and the dummy operation units 53 are periodically updated, so that the unauthorized person cannot input data from the operation unit 53 that the unauthorized person knows.

[0149] The vehicle 50 and the vehicle locking system 80 may be provided as a backup means for opening and closing the doors when, for example, the key is left inside the vehicle. In this case, the operation unit 53 may be activated by communication between the communication unit 83 and a device such as a smartphone of an authorized person. The operation unit 53 and the printed matter 2 may be used in a button for turning on the ignition in the vehicle or in a key insertion slot. The operation unit 53 and the printed matter 2 may also be used in operation buttons or engine keys for machine tools or agricultural machinery. In this case, operation by children or unauthorized persons can be avoided, thereby preventing accidents.

[0150] The technical concepts of the vehicle 50, the operation unit 53 of the vehicle locking system 80, and the printed matter 2 may be provided as an extension function of the windshield inside the vehicle. FIGS. 21(a) and 21(b) are diagrams showing an example of a vehicle interior to which the printed matter and light source are applied. As shown in FIG. 21(a), the printed matter 2 and a display device (light source 3) are arranged on a pillar 91 near the windshield inside the vehicle. By displaying an image of the outside of the vehicle obtained by the sensor 82 on the display device, the pillar 91 can be made to appear as if it is transparent, as shown in FIG. 21(b). This improves the driver's visibility. [Explanation of symbols]

[0151] 2...printed matter, 50...vehicle, 52...vehicle body, 53...operation unit, 62...locking unit, 80...vehicle locking system, 84...ECU (an example of a control unit).

Claims

1. a locking unit that locks the vehicle doors; an operating unit that is disposed on the surface of the vehicle body and that is operated to unlock the locking unit and that can emit light; a printed matter on which a color is printed, the printed matter being disposed on the front surface side of the operation unit; Equipped with The printed matter is When the operation unit emits light, the light from the operation unit is transmitted; When the operation unit is turned off, the operation unit is concealed by the color of the printed matter. Vehicle locking system.

2. The vehicle locking system according to claim 1 , wherein the operation unit and the printed matter are provided on the door.

3. The vehicle locking system according to claim 1 , wherein the operation unit and the printed matter are provided at positions different from the door.

4. a control unit that detects the presence of an authorized person who has authority to unlock the door and controls light emission of the operation unit; The control unit Detecting the presence of the authorized person based on image analysis of the authorized person or identification information possessed by the authorized person; 4. The vehicle locking system according to claim 1, wherein the operation unit is illuminated when the presence of the authorized person is detected.

5. The car body and a locking unit that locks the vehicle doors; an operating unit that is disposed on the surface of the vehicle body and that is operated to unlock the locking unit and that can emit light; a printed matter on which a color is printed, the printed matter being disposed on the front surface side of the operation unit; Equipped with The printed matter is When the operation unit emits light, the light from the operation unit is transmitted; When the operation unit is turned off, the operation unit is concealed by the color of the printed matter. vehicle.

Images