Decorative member, display device with decorative member

Abstract

To enable image light to be appropriately observed while imparting design properties to a display device.SOLUTION: A decorative member 10 includes a decorative lamination body 20. The decorative lamination body 20 includes a decorative layer 30 forming a design and a dark color layer 35 covering the decorative layer 30 from one side. The decorative layer 30 allows at least part of light incident at each location to penetrate. The dark color layer 35 absorbs part of light incident at each location while allowing the other part of light to penetrate. An entire light transmittance of the decorative member 10 is 2% to 75%. A transmission sharpness degree of the decorative member 10 measured using an optical comb with a width of 0.5 mm is 25% or more.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a decorative member and a display device with a decorative member having the decorative member. [Background technology]

[0002] Display devices that display image light are widely used. When no image is displayed, such display devices are usually observed to be black. On the other hand, design is considered very important for surface components of automobiles, furniture, housing construction materials, etc. Currently, display devices applied in various fields are expected not only to simply display images, but also to harmonize in design with the surrounding environment.

[0003] In order to impart design to a display device, it has been considered to provide a decorative laminate facing the display surface of the display device. For example, a decorative laminate such as that described in Patent Document 1 can impart a design that harmonizes with the surrounding environment of the display device by forming a design with a design portion. Furthermore, a transparent portion such as a hole is provided in the area of ​​the decorative laminate facing the display surface as a portion where the design portion is not formed so that image light from the display device can pass through the decorative laminate. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-179197 Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, in the decorative laminate described in Patent Document 1, the design portion is opaque. That is, the image light is blocked by the design portion, making it impossible to observe from the outside. As a result, the image light is observed only unclearly. Furthermore, in the decorative laminate described in Patent Document 1, the transparent portions are provided periodically to allow the image light to be transmitted uniformly throughout the entire decorative laminate. Due to this periodicity, moire (interference fringes) may be observed in the image light transmitted through the decorative laminate. Such moire impairs the visibility of the image.

[0006] The present disclosure has been made in consideration of these points, and aims to provide a display device with a design feature while allowing image light to be appropriately observed. [Means for solving the problem]

[0007] The decorative member of the present disclosure is a decorative member including a decorative laminate having a decorative layer that forms a design and a dark color layer that covers the decorative layer from one side, the decorative layer transmits at least a portion of light incident at each position; the dark layer absorbs a portion of the incident light at each position while transmitting another portion of the incident light; The total light transmittance of the decorative member is 2% or more and 75% or less, The transmitted clarity of the decorative member measured using an optical comb with a width of 0.5 mm is 25% or greater.

[0008] In the decorative member of the present disclosure, the transmitted clarity of the decorative member measured using an optical comb with a width of 0.125 mm may be 25% or greater.

[0009] In the decorative member of the present disclosure, L * a * b * a in color system * The value of b * For the value of [(a * ) 2 +(b *) 2 ] 1 / 2 ≦8 may satisfy the following relationship.

[0010] In the decorative member of the present disclosure, the decorative layer may have a design portion that forms a design, and a transparent portion that is a portion where the design portion is not formed.

[0011] In the decorative member of the present disclosure, the decorative laminate further includes a second dark color layer covering the decorative layer from the other side, The second dark layer may absorb a portion of the incident light at each position while transmitting another portion.

[0012] In the decorative member of the present disclosure, The decorative laminate further includes a second decorative layer laminated on the other side of the decorative layer, The second decorative layer forms a design different from that of the first decorative layer, The second decorative layer may transmit at least a portion of light incident at each position.

[0013] In the decorative member of the present disclosure, the second decorative layer may have a second design portion that forms a design, and a second transparent portion that is a portion where the second design portion is not formed.

[0014] In the decorative member of the present disclosure, the visible light reflectance of the decorative layer may decrease with increasing distance from a certain position.

[0015] In the decorative member of the present disclosure, the visible light transmittance of the dark color layer may decrease with increasing distance from a certain position.

[0016] In the decorative member of the present disclosure, the decorative layer may contain an optical interference pigment.

[0017] In the decorative member of the present disclosure, the decorative laminate may further include a protective layer that protects the decorative layer.

[0018] In the decorative member of the present disclosure, the decorative laminate may further include a transparent heat seal layer that forms a surface of the decorative laminate.

[0019] In the decorative member of the present disclosure, the decorative laminate may further include a transparent backer layer that forms a surface of the decorative laminate.

[0020] In the decorative member of the present disclosure, the decorative laminate may further include a transparent adhesive layer that forms a surface of the decorative laminate.

[0021] In the decorative member of the present disclosure, the dark color layer forms a surface of the decorative laminate, The dark layer may be adhesive.

[0022] The decorative member of the present disclosure comprises: Further comprising an optical functional layer laminated on the decorative laminate, The optical functional layer may form a surface of the decorative member.

[0023] The decorative member of the present disclosure may further include a transparent molded body laminated on the decorative laminate.

[0024] A first display device with a decorative member according to the present disclosure includes: a display device having a display surface; any one of the decorative members described above provided facing the display surface, The display device is provided on one side of the decorative member.

[0025] A second display device with a decorative member according to the present disclosure includes: a display device having a display surface; any one of the decorative members described above provided facing the display surface, The display device is provided on the other side of the decorative member.

[0026] In the first or second display device with a decorative member of the present disclosure, the display device may include a light source and a light shield that forms an image by blocking a portion of light from the light source. [Effects of the Invention]

[0027] According to the present disclosure, it is possible to provide a display device with a design feature while allowing the image light to be properly observed. [Brief explanation of the drawings]

[0028] [Figure 1] FIG. 1 is an exploded perspective view schematically showing the entire display device with a decorative member. [Figure 2] FIG. 2 is an exploded cross-sectional view of an example of a display device with a decorative member. [Figure 3] FIG. 3 is an exploded cross-sectional view of another example of a display device with a decorative member. [Figure 4] FIG. 4 is a cross-sectional view showing an example of a display device. [Figure 5] FIG. 5 is a cross-sectional view showing an example of a decorative member. [Figure 6] FIG. 6 is a cross-sectional view showing another example of the decorative member. [Figure 7] FIG. 7 is a cross-sectional view showing a first example of a decorative laminate. [Figure 8] FIG. 8 is a cross-sectional view showing a second example of the decorative laminate. [Figure 9] FIG. 9 is a cross-sectional view showing a third example of the decorative laminate. [Figure 10] FIG. 10 is a cross-sectional view showing a fourth example of the decorative laminate. [Figure 11] FIG. 11 is a cross-sectional view showing a fifth example of the decorative laminate. [Figure 12] FIG. 12 is a cross-sectional view showing a sixth example of the decorative laminate. [Figure 13] FIG. 13 is a cross-sectional view showing a seventh example of the decorative laminate. [Figure 14] FIG. 14 is a diagram for explaining a method for measuring the transmitted light clarity of a decorative member. [Figure 15]FIG. 15 is a diagram for explaining a method for measuring the transmitted light visibility of a decorative member. [Figure 16] FIG. 16 is a diagram showing a state in which the display device with a decorative member emits image light. [Figure 17] FIG. 17 is a diagram showing a state in which the display device with a decorative member does not emit image light. [Figure 18] FIG. 18 is a diagram showing a modified example of the decorative laminate. [Figure 19] FIG. 19 is a diagram showing another modified example of the decorative laminate. [Figure 20] FIG. 20 is a diagram showing yet another modified example of the decorative laminate. [Figure 21] FIG. 21 is a diagram showing yet another modified example of the decorative laminate. [Figure 22] FIG. 22 is a diagram showing yet another modified example of the decorative laminate. [Figure 23] FIG. 23 is a diagram showing a modified example of the decorative layer. [Figure 24] FIG. 24 shows a modified example of the dark layer. DETAILED DESCRIPTION OF THE INVENTION

[0029] An embodiment of the present invention will be described below with reference to the drawings. In the drawings accompanying this specification, the scale and aspect ratios have been appropriately changed and exaggerated from those of the actual objects for the sake of illustration and ease of understanding.

[0030] Furthermore, in this specification, the terms "layer," "sheet," and "film" are not distinguished from one another solely based on differences in name. For example, the term "sheet" is a concept that includes a member that can be called a layer or a film.

[0031] Furthermore, terms used in this specification that specify shapes, geometric conditions, and their degrees, such as "parallel," "orthogonal," and "identical," as well as values ​​of lengths and angles, are intended to be interpreted without being bound by strict meanings, but to include a range within which similar functions can be expected.

[0032] FIG. 1 is an exploded perspective view that schematically shows a display device with a decorative member 1 of this embodiment. As shown in FIG. 1, the display device with a decorative member 1 has a display device 5 and a decorative member 10. The display device 5 has a display surface 6 that displays an image. The decorative member 10 is disposed facing the display surface 6 of the display device 5. The display device with a decorative member 1 can be in an image non-display state and an image display state. In the image non-display state, the display device with a decorative member 1 displays a design formed by the decorative member 10. In the image display state, the display device with a decorative member 1 displays an image that is to be displayed on the display surface 6 of the display device 5.

[0033] In the illustrated example, the display device with a decorative member 1 is shown as a flat plate, but the display device with a decorative member 1 may be curved by curving each component of the display device with a decorative member 1. For example, only the decorative member 10 may be curved, or the display surface 6 of the display device 5 and the decorative member 10 may be curved.

[0034] 2 and 3 show cross-sectional views of one example and another example of the display device with a decorative member 1. As shown in Fig. 2 and 3, the decorative member 10 has an optical function layer 11, a transparent molded body 13, and a decorative laminate 20. The decorative laminate 20 has at least a decorative layer 30 and a dark color layer 35 that covers the decorative layer 30 from one side.

[0035] In one example shown in FIG. 2, the decorative laminate 20 is arranged so that the side of the decorative layer 30 on which the dark color layer 35 is provided faces the display device 5. In other words, the display device 5 is provided on the side where the dark color layer 35 of the decorative laminate 20 covers the decorative layer 30. On the other hand, in another example shown in FIG. 3, the decorative laminate 20 is arranged so that the side of the decorative layer 30 on which the dark color layer 35 is provided faces the display device 5. In other words, the display device 5 is provided on the opposite side of the decorative laminate 20 from the side where the dark color layer 35 covers the decorative layer 30. Note that FIGS. 2 and 3 are diagrams for explaining the position of the display device 5 with respect to the decorative layer 30 and dark color layer 35 of the decorative laminate 20, and the positions of the optical function layer 11 and the transparent molded body 13 are not limited to the example shown in FIGS. 2 and 3. In addition, in the example shown in Figures 2 and 3, the decorative laminate 20 has only the decorative layer 30 and the dark color layer 35, but it may also have other components, as shown in the examples described below.

[0036] The display device 5 can display an image on a display surface 6. The display device 5 can emit image light from the display surface 6. The display device 5 can be in a state where an image is displayed on the display surface 6 and a state where an image is not displayed on the display surface 6. Any display device such as a liquid crystal display, a plasma display, or an organic EL display can be used as the display device 5. The display surface 6 of such a display device 5 is typically a glass surface.

[0037] Alternatively, the display device 5 may display an image based on brightness and darkness by blocking part of the light with a light-blocking material. In this case, the display device 5 includes a light source 5a that emits light and a light-blocking material 5b that forms an image by blocking part of the light from the light source 5a, as shown in FIG. 4. The light-blocking material 5b has a shape corresponding to the image to be displayed. The non-formed portion of the light-blocking material 5b serves as the display surface 6. As the light source 5a, it is preferable to use, for example, a surface light source device that emits light in a planar form, in order to make the intensity of light that passes through the portion where the light-blocking material 5b is not formed uniform. The light-blocking material 5b may be formed integrally with the decorative member 10.

[0038] 5 and 6 show cross-sectional views of one example and another example of the layer structure of the decorative member 10. As shown in FIGS. 5 and 6, the optical functional layer 11 is laminated on the decorative laminate 20 and forms the surface of the decorative member 10. In other words, the optical functional layer 11 forms the outermost layer of the decorative member 10. A transparent molded body 13 is laminated on the decorative laminate 20. In the example shown in FIG. 5, the transparent molded body 13 forms the surface of the decorative member 10. In other words, the transparent molded body 13 forms the outermost layer of the decorative member 10, different from the optical functional layer 11. On the other hand, in the example shown in FIG. 6, the transparent molded body 13 is disposed between the optical functional layer 11 and the decorative laminate 20.

[0039] As used herein, "transparent" means that the visible light transmittance, specified as the average value of the transmittance at each wavelength, measured using a spectrophotometer (Shimadzu Corporation's "UV-3100PC," compliant with JIS K 0115) within a measurement wavelength range of 380 nm to 780 nm, is 50% or more, preferably 80% or more.

[0040] The optical function layer 11 imparts various functions to the decorative member 10. Examples of functions that can be imparted by the optical function layer 11 include a low reflection function (LR), an anti-reflection function (AR), an anti-glare function (AG), an infrared shielding (reflection) function, an ultraviolet shielding (reflection) function, and a scratch resistance (HC) function. The optical function layer 11 may impart a plurality of these functions. In particular, when the optical function layer 11 imparts a low reflection function or an anti-reflection function, the visible light reflectance of the optical function layer 11 is preferably 5% or less.

[0041] The transparent molded body 13 supports the optical function layer 11 and the decorative laminate 20. Furthermore, because the transparent molded body 13 is transparent, it is unlikely to interfere with the image light from the display device 5 or the design displayed by the decorative laminate 20. The transparent molded body 13 is formed, for example, by molding a thermoplastic material. By molding, the transparent molded body 13 can be formed into a desired shape. Examples of materials for the transparent molded body 13 include glass and resins such as acrylic, polycarbonate, ABS, PET, and polypropylene.

[0042] The decorative laminate 20 displays a design and imparts design features to the display device 1 with a decorative member. The decorative laminate 20 can have various configurations. Figs. 7 to 13 each show different examples of the configuration of the decorative laminate 20. Each example of the configuration of the decorative laminate 20 shown in Figs. 7 to 13 will be described below. Note that the same reference numerals will be used for corresponding parts in each example, and duplicated explanations will be omitted.

[0043] The decorative laminate 20 of the first example shown in Fig. 7 has a base material 21, a decorative layer 30, a dark color layer 35, and a transparent adhesive layer 29. The transparent adhesive layer 29 forms the surface of the decorative laminate 20. In particular, in the example shown in Fig. 7, the base material 21 also forms the surface of the decorative laminate 20.

[0044] The substrate 21 is a support that properly supports the decorative layer 30 and the dark layer 35. The substrate 21 also allows the decorative laminate 20 to have an appropriate thickness. The substrate 21 is a transparent film-like member. The material of the substrate 21 may be any material that is transparent and can properly support the decorative layer 30 and the dark layer 35, and is, for example, made of acrylic. In addition, taking into consideration transparency and proper support for the decorative layer 30 and the dark layer 35, the substrate 21 preferably has a thickness of 10 μm or more and 500 μm or less.

[0045] The transparent adhesive layer 29 is a layer for adhering the decorative laminate 20 to other members. The transparent adhesive layer 29 is a so-called OCA (Optical Clear Adhesive). Examples of materials for the transparent adhesive layer 29 include acrylic polymers, urethane polymers, silicone polymers, and rubber bullet polymers. The transparent adhesive layer 29 has a thickness that provides sufficient adhesiveness and prevents the decorative laminate 20 from becoming too thick. For example, the thickness of the transparent adhesive layer 29 is 5 μm or more and 300 μm or less. Note that, to prevent the transparent adhesive layer 29 from unintentionally adhering to other members, the transparent adhesive layer 29 may be covered with a peelable separate layer (not shown) before bonding the decorative laminate 20 to the transparent molded body 13.

[0046] The decorative layer 30 forms the design displayed by the decorative laminate 20. More specifically, by reflecting light incident from the outside at each position on the decorative layer 30, a design that can be observed from the outside is formed. The decorative layer 30 can form designs such as figures, patterns, designs, colors, pictures, photographs, characters, marks, pictograms, letters, and numbers as designs. For example, the decorative layer 30 can form wood-grain or marble-like designs or geometric patterns as designs that can harmonize with the surrounding environment in which the display device 1 with a decorative member is installed. In particular, the decorative layer 30 can form anti-glare designs, matte designs, glossy designs, and metallic designs.

[0047] The decorative layer 30 contains pigments and organic fillers of various colors to appropriately form the design. In particular, the pigment contained in the decorative layer 30 is preferably an optical interference pigment. Examples of optical interference pigments include pigments coated on scaly base particles such as mica, aluminum, or glass. Titanium oxide is preferred as the pigment that coats the base particles. Optical interference pigments express a predetermined color by multiple reflection of light.

[0048] Furthermore, the decorative layer 30 can transmit at least a portion of the light incident at each position. This allows the decorative layer 30 to transmit the image light from the display device 5 at each position. The decorative layer 30 may have a portion that transmits all of the incident light. In other words, a portion of the decorative layer 30 may be transparent.

[0049] The dark layer 35 makes the display device 5 difficult to observe from the outside. The dark layer 35 also covers one side of the decorative layer 30, darkening and clarifying the design formed by the decorative layer 30. The dark layer 35 absorbs a portion of incident light at each position while transmitting another portion. The dark layer 35 typically contains a black pigment, resulting in its black color. The dark layer 35 may contain a black dye instead of a black pigment, or may contain both a pigment and a dye. Examples of black pigments contained in the dark layer 35 include carbon black, titanium black, and composite metal oxides, and examples of black dyes include azo-based black dyes and nigrosine black dyes. The dark layer 35 may also contain a toning pigment or toning dye in addition to a black pigment or black dye. For example, if the dark layer 35 containing a black pigment has a reddish color, the dark layer 35 may further contain a blue pigment as a toning pigment. Alternatively, the dark layer 35 may be black by containing pigments or dyes of yellow, cyan, and magenta. The pigments contained in the dark layer 35 preferably have a particle size of 300 nm or less. The particle size of the pigment can be measured by laser diffraction using, for example, a concentrated particle size analyzer (FPAR-1000) manufactured by Otsuka Electronics Co., Ltd., for the coating liquid that forms the dark layer 35 (described below).

[0050] The decorative laminate 20 of the second example shown in Fig. 8 has a base material 21, a decorative layer 30, a dark color layer 35, and a transparent adhesive layer 29, similar to the first example shown in Fig. 7, and the transparent adhesive layer 29 forms the surface of the decorative laminate 20. In the example shown in Fig. 8, the base material 21 is located between the decorative layer 30 and the transparent adhesive layer 29.

[0051] A decorative laminate 20 of a third example shown in FIG. 9 includes a substrate 21, a decorative layer 30, and a dark layer 35. In the third example, the dark layer 35 forms the surface of the decorative laminate 20 and has adhesive properties. Before bonding the decorative laminate 20 to the transparent molded body 13, the dark layer 35 may be covered with a peelable separate layer (not shown) to prevent the dark layer 35 from unintentionally adhering to other components. Such a dark layer 35 may be, for example, an OCA containing a black pigment. In the example shown in FIG. 9, the substrate 21 also forms the surface of the decorative laminate 20.

[0052] Such a dark color layer 35 allows the decorative laminate 20 to be adhered to the transparent molded body 13 without providing a separate adhesive layer, and therefore the decorative laminate 20 can be made thinner.

[0053] The decorative laminate 20 of the fourth example shown in Fig. 10 has a base material 21, a decorative layer 30, and a dark color layer 35, similar to the third example shown in Fig. 9. The dark color layer 35 forms the surface of the decorative laminate 20 and has adhesive properties. In the example shown in Fig. 10, the base material 21 is located between the decorative layer 30 and the dark color layer 35.

[0054] 11 includes a substrate 21, a backer layer 27, a decorative layer 30, and a dark color layer 35. In the example shown in FIG. 11, the substrate 21 and the backer layer 27 each form a surface of the decorative laminate 20.

[0055] The backer layer 27 is a layer that protects the decorative layer 30 and the dark layer 35. The backer layer 27 is transparent so as not to interfere with the design formed by the decorative layer 30. The backer layer 27 is laminated to the decorative layer 30 or the dark layer 35, for example, by an adhesive layer (not shown). The backer layer 27 is made of, for example, a transparent thermoplastic resin material. Specific examples of the backer layer 27 include ABS, PC, PMMA, etc. The thickness of the backer layer 27 is, for example, 50 μm or more and 1000 μm or less.

[0056] The backer layer 27 protects the decorative layer 30 and the dark color layer 35, allowing the decorative layer 30 and the dark color layer 35 to appropriately form a design. This allows the decorative layer 30 to form the intended design.

[0057] 12 includes a protective layer 23, a backer layer 27, a decorative layer 30, and a dark layer 35. In the example shown in FIG. 12, the protective layer 23 and the backer layer 27 each form a surface of the decorative laminate 20.

[0058] The protective layer 23 is a layer that protects the decorative layer 30 and the dark color layer 35. Typically, the protective layer 23 has a hard coat function that is scratch-resistant. The protective layer 23 may be covered with a film (not shown) made of PET or the like before the decorative laminate 20 is laminated on the optical function layer 11 and the transparent molded body 13. The protective layer 23 is made of, for example, an ionizing radiation curable resin, a photocurable resin, a resin having a siloxane bond, or the like. The thickness of the protective layer 23 is, for example, 0.2 μm or more and 20 μm or less.

[0059] Because the protective layer 23 protects the decorative layer 30, the decorative layer 30 is less likely to be damaged even when an impact is applied from outside the decorative member 10. Therefore, the decorative layer 30 can form the intended design.

[0060] 13 includes a protective layer 23, a heat seal layer 25, a decorative layer 30, and a dark color layer 35. In the example shown in FIG. 13, the protective layer 23 and the heat seal layer 25 each form the surface of the decorative laminate 20.

[0061] The heat seal layer 25 has no adhesive properties at room temperature, but becomes adhesive when heated, allowing it to be bonded to other members. The heat seal layer 25 is transparent so as not to interfere with the image light from the display device 5 or the design formed by the decorative layer 30. The heat seal layer 25 is made of, for example, vinyl chloride-vinyl acetate resin, acrylic resin, polyester resin, or urethane resin. The thickness of the heat seal layer 25 is, for example, 0.2 μm or more and 20 μm or less.

[0062] The heat seal layer 25 forming the surface of the decorative laminate 20 allows the decorative laminate 20 to be appropriately formed and provided on the transparent molded body 13 of a desired shape. In other words, the decorative member 10 of any shape can be easily produced.

[0063] The decorative laminates 20 of the first to sixth examples shown in Figures 7 to 12 are bonded to a transparent molded body 13 via a transparent adhesive layer 29 or a backer layer 27, thereby becoming the decorative member 10. On the other hand, the decorative laminate 20 of the seventh example shown in Figure 13 becomes the decorative member 10 when a heated thermoplastic resin is molded on the heat seal layer 25 side to become the transparent molded body 13. When the decorative laminate 20 is bonded to the transparent molded body 13 via the backer layer 27, it is preferable that the material of the transparent molded body 13 is resin. On the other hand, when the decorative laminate 20 is bonded to the transparent molded body 13 via the transparent adhesive layer 29 or when the transparent molded body 13 is molded on the heat seal layer 25 side, it is preferable that the material of the transparent molded body 13 is glass.

[0064] It is also possible to combine the decorative laminates 20 of the first to sixth examples described above as appropriate.

[0065] If the total light transmittance of the decorative member 10 is too low, the image light from the display device 5 cannot be properly transmitted through the decorative member 10, making it difficult to observe the image light. To ensure that the image light from the display device 5 can be properly observed, the total light transmittance of the decorative member 10 is preferably 2% or more, and more preferably 10% or more. On the other hand, if the total light transmittance of the decorative member 10 is too high, external light is not sufficiently reflected by the decorative member 10, particularly the decorative layer 30, and the decorative member 10 cannot properly display the design. To ensure that the design is properly displayed, the total light transmittance of the decorative member 10 is preferably 75% or less, and more preferably 40% or less.

[0066] The total light transmittance can be measured using a haze meter (for example, product number HR-100 manufactured by Murakami Color Research Laboratory) conforming to JIS K 7361-1. Visible light refers to light having a wavelength of 380 nm or more and 780 nm or less, and the transmittance is specified as the average value of the transmittance at each wavelength when measured within the measurement wavelength range of 380 nm or more and 780 nm or less.

[0067] Furthermore, if the saturation of the decorative member 10 is high, the image light passing through the decorative member 10 may change from the intended color. In other words, the image light may not be properly observed. It is preferable that the saturation of the decorative member 10 is low so that the color of the image light can pass through the decorative member 10 with almost no change. Specifically, L * a * b * a in color system * The value of b * For the value of [(a * ) 2 +(b * ) 2 ] 1 / 2 ≦8 It is preferable that the following relationship is satisfied: [(a * ) 2 +(b * ) 2 ] 1 / 2 ≦4 It is more preferable that the following relationship is satisfied.

[0068] In addition, L * a * b * L in color space * , a * , b * Each value of can be measured by using a spectrophotometer (Konica Minolta "CM-700d"), for example, based on the reflected light from the object.

[0069] The decorative member 10 preferably has a high transmission clarity so that image light transmitted through the decorative member 10 can be clearly observed. Specifically, the transmission clarity of the decorative member 10 measured using an optical comb with a width of 0.5 mm is preferably 25% or more, more preferably 50% or more, and even more preferably 75% or more. Furthermore, the transmission clarity of the decorative member 10 measured using an optical comb with a width of 0.125 mm is preferably 25% or more, more preferably 50% or more, and even more preferably 75% or more.

[0070] Here, the transmission clarity is defined as JIS K 737 4 The value is specified in the JIS C 2007. The transmission clarity can be measured using a transmission clarity measuring device 50, such as the ICM-1T image clarity measuring instrument manufactured by Suga Test Instruments Co., Ltd. Specifically, as shown in FIG. 14, the transmission clarity measuring device 50 includes a light source 51, a slit 52, a first lens 53, a second lens 54, an optical comb 55, and a light receiver 56. As shown in FIG. 15, the optical comb 55 has multiple comb teeth of different widths. That is, the comb teeth form a light and dark pattern. The width of the dark areas is 1:1. The comb tooth widths are 0.125 mm, 0.25 mm, 0.5 mm, 1.0 mm, and 2.0 mm. For comparison, the optical comb 55 also includes a portion containing only dark areas. The comb teeth of the optical comb 55 extend in a direction parallel to the direction of the slits 52.

[0071] Measurement of transmission clarity using the transmission clarity measuring device 50 is performed as follows. First, light is emitted from the light source 51 and passes through the slit 52. The light is then collimated by the first lens 53. This collimated light is irradiated onto the decorative member 10. The light that has passed through the decorative member 10 is collected by the second lens 54 and then irradiated onto the optical comb 55. The light that has passed through the optical comb 55 is received by the light receiver 56, and the amount of light is measured. For the light that has passed through each width of the teeth of the optical comb 55, the transmission clarity C for each width of the teeth is calculated from the maximum value M and minimum value m of the measured light amount according to the following formula: C [%] = {(Mm) / (M+m)} × 100

[0072] Next, the operation of the display device 1 with a decorative member according to this embodiment will be described.

[0073] When no image is displayed on the display surface 6 of the display device 5, the decorative member 10 displays a design in the display device 1 with a decorative member, as shown in Fig. 16. More specifically, the decorative laminate 20 displays the design formed by the decorative layer 30. In other words, the display device 1 with a decorative member displays a design that is intended to be observed. The displayed design prevents the display surface 6 of the display device 5 from being observed by an external observer, allowing the display device 1 with a decorative member to blend in design with the surrounding environment.

[0074] On the other hand, when the display device 5 displays an image on the display surface 6, the image light passes through the decorative member 10, as shown in FIG. 17. More specifically, a portion of the incident image light is transmitted through each of the decorative layer 30 and the dark color layer 35 of the decorative laminate 20. This allows the observer to observe the image. In other words, the display device 1 with a decorative member can display the image that is intended to be observed, and an external observer can observe the image. In particular, because the image light can be transmitted through each of the positions of the decorative member 10, the display device 1 with a decorative member can clearly display the image.

[0075] A description will be given of an example of a method for manufacturing the decorative member 10 and the decorative laminate 20. In the example described here, a method for manufacturing the decorative member 10 having the decorative laminate 20 of the first example shown in FIG.

[0076] The decorative layer 30 is provided on the base material 21 by, for example, printing. The decorative layer 30 is provided so as to form a desired design. The decorative layer 30 is provided, for example, to be sufficiently thin so as to transmit at least a portion of the light incident at each position.

[0077] Next, a coating liquid for forming a dark layer 35 is applied onto the decorative layer 30. The coating liquid contains black pigments such as carbon black, titanium black, and composite metal oxides, or black dyes such as azo-based black dyes and nigrosine black dyes. The coating liquid may also contain toning pigments and toning dyes. Alternatively, the coating liquid may contain pigments and dyes of yellow, cyan, and magenta to produce a black color. The particle size of the pigments contained in the coating liquid is 300 nm or less. The coating liquid is made of, for example, ultraviolet-curing resin. When the coating liquid is irradiated with ultraviolet light, the coating liquid hardens, forming the dark layer 35.

[0078] Thereafter, a transparent adhesive layer 29 is provided on the dark color layer 35. This produces the decorative laminate 20 of the first example shown in Fig. 7. The decorative laminate 20 is bonded to the transparent molded body 13 via the transparent adhesive layer 29, thereby producing the decorative member 10.

[0079] Conventional decorative members have transparent portions such as holes in an opaque design portion, allowing image light to pass through while displaying the design. While the transparent portions allow the image light to pass through, the design portions block the image light. Because the blocked image light cannot be observed from the outside, only a portion of the image light is observed. In other words, the image light is observed only indistinctly.

[0080] On the other hand, in the decorative member 10 of this embodiment, the decorative layer 30 transmits at least a portion of the light incident at each position. The dark color layer 35 absorbs a portion of the light incident at each position while transmitting another portion. Furthermore, the total light transmittance of the decorative member 10 is 2% or more and 75% or less. The decorative member 10 can appropriately display the design provided by the decorative layer 30. Furthermore, since the decorative member 10 can sufficiently transmit light at each position, the light transmitted through the decorative member 10 is clear. Specifically, the transmission clarity of the decorative member 10 of this embodiment, measured using a 0.5 mm-wide optical comb, is 25% or more. The light transmitted through such a decorative member 10 is clearly observed. That is, the image light from the display device 5 can be appropriately observed. In particular, when the decorative laminate 20 displays an anti-glare design or a matte design, the light transmitted through the decorative member 10 can be clearly observed. Furthermore, when the transmitted light clarity of the decorative member 10 measured using an optical comb with a width of 0.5 mm is 50% or more, it is possible to clearly observe the light transmitted through the decorative member 10 even when the decorative laminate 20 displays a design with an excellent gloss or metallic appearance. Furthermore, when the transmitted light clarity of the decorative member 10 measured using an optical comb with a width of 0.5 mm is 75% or more, it is possible to more clearly observe the light transmitted through the decorative member 10.

[0081] Furthermore, the transmission clarity of the decorative member 10 measured using an optical comb with a width of 0.125 mm is 25% or more. Image light transmitted through such a decorative member 10 can be observed more clearly. In other words, the image light can be observed more appropriately. Furthermore, when the transmission clarity of the decorative member 10 measured using an optical comb with a width of 0.125 mm is 50% or more, the light transmitted through the decorative member 10 can be observed more clearly even when the decorative laminate 20 displays a design with an excellent gloss or metallic finish. Furthermore, when the transmission clarity of the decorative member 10 measured using an optical comb with a width of 0.125 mm is 75% or more, the light transmitted through the decorative member 10 can be observed even more clearly.

[0082] At each position of the decorative member 10, L * a * b * a in color system * The value of b * For the value of [(a * ) 2 +(b * ) 2 ] 1 / 2 ≦8 The relationship between the color saturation and the color of the decorative member 10 is satisfied. In other words, the saturation of the decorative member 10 is low. Therefore, light transmitted through the decorative member 10, particularly image light from the display device 5, can be easily observed in the intended color even through the decorative member 10. In other words, the image light can be observed appropriately.

[0083] Because a portion of the light incident on the pigment may be diffusely reflected, if the particle size of the pigment is too large, the haze of the light passing through the dark color layer 35 increases. This makes it difficult to observe the image light passing through the decorative member 10 as intended. Therefore, it is preferable that the particle size of the pigment contained in the dark color layer 35 is small, specifically, that the particle size of the pigment contained in the coating liquid that forms the dark color layer 35 be 300 nm or less.

[0084] The decorative layer 30 contains an optical interference pigment. The optical interference pigment expresses color by multiple reflection of light, so that specific wavelengths of light passing through the decorative layer 30 are rarely absorbed and the transmitted light is rarely colored. Therefore, even when image light from the display device 5 passes through the decorative member 10, the image light can be observed in the intended color.

[0085] The display device 5 is provided on one side of the decorative member 10, i.e., the side where the dark color layer 35 covers the decorative layer 30. In this case, the design formed by the decorative layer 30 can be observed without passing through the dark color layer 35. Therefore, the decorative member 10 can display the design brightly. Furthermore, the dark color layer 35 allows the design formed by the decorative layer 30 to be displayed darkly and clearly. This allows the display device 5 to have excellent design properties.

[0086] Alternatively, the display device 5 is provided on the other side of the decorative member 10, i.e., the side opposite to the side where the dark color layer 35 covers the decorative layer 30. In this case, the design formed by the decorative layer 30 is observed through the dark color layer 35. Because the dark color layer 35 is visible, the design formed by the decorative layer 30 is observed recessed by the thickness of the dark color layer 35. In particular, the depth of the design is observed to change depending on the direction from which the design is observed. This allows the display device 5 to have excellent design properties.

[0087] As described above, the decorative member 10 of this embodiment includes a decorative laminate 20 having a decorative layer 30 that forms a design and a dark layer 35 that covers one side of the decorative layer 30. The decorative layer 30 transmits at least a portion of the incident light at each position, and the dark layer 35 absorbs a portion of the incident light at each position while transmitting the other portion. The total light transmittance of the decorative member 10 is 2% to 75%. The transmission clarity of the decorative member 10 measured using a 0.5 mm-wide optical comb is 25% or greater. This decorative member 10 can display a design while transmitting a sufficient amount of light clearly. Therefore, by placing the decorative member 10 facing the display surface 6 of a display device 5, the display device 5 can be given a design while allowing the image light from the display device 5 to be properly observed.

[0088] Various modifications can be made to the above-described embodiment. Modifications of the decorative member 10 will be described below with reference to the drawings. Note that in the modifications shown in Figures 18 to 22, components other than the decorative layer and the dark color layer are omitted.

[0089] In a modified example of the decorative laminate 20 shown in FIG. 18, the decorative layer 30 has a design portion 31 that forms a design and a transparent portion 33 that is a portion where the design portion 31 is not formed. As in the above-described embodiment, the decorative layer 30 can transmit at least a portion of the light incident at each position. Therefore, the design portion 31 can transmit at least a portion of the light incident at each position. The cross-sectional shape of the design portion 31 may be rectangular as in the example shown in the figure, but may also be trapezoidal or the like. The transparent portion 33 may be a void such as a hole as in the example shown in FIG. 18, or may be formed of, for example, a transparent resin. Light incident on the transparent portion 33 is transmitted without obstruction.

[0090] According to the decorative member 10 having such a decorative layer 30, the design can be formed not only by the design portion 31 but also by the pattern of the design portion 31 and the transparent portion 33. This allows the decorative member 10 to display a design with excellent design quality.

[0091] In a modified example of the decorative laminate 20 shown in FIG. 19, the decorative laminate 20 further includes a second dark layer 45. The second dark layer 45 covers the other side of the decorative layer 30. That is, the decorative layer 30 is located between the dark layer 35 and the second dark layer 45. The second dark layer 45 has substantially the same configuration as the dark layer 35. That is, the second dark layer 45 absorbs a portion of the incident light at each position while transmitting another portion. The thickness of the second dark layer 45 may be different from the thickness of the dark layer 35.

[0092] The decorative member 10 having such a second dark color layer 45 can display the design formed by the decorative layer 30 thickly and clearly due to the dark color layer 35, and can also display the design formed by the decorative layer 30 in a recessed manner due to the second dark color layer 45. This allows the decorative member 10 to display a design with excellent design quality.

[0093] In a modified example of the decorative laminate 20 shown in Fig. 20, the decorative laminate 20 further includes a second decorative layer 40. The second decorative layer 40 is laminated on the other side of the decorative layer 30. The second decorative layer 40 forms a design different from that of the decorative layer 30. The second decorative layer 40 has substantially the same configuration as the decorative layer 30. In other words, the second decorative layer 40 transmits at least a portion of the light incident at each position.

[0094] The decorative member 10 having such a second decorative layer 40 can display multiple overlapping designs, thereby enabling the decorative member 10 to display designs with excellent design quality.

[0095] In a modified example of the decorative laminate 20 shown in FIG. 21 , the decorative laminate 20 further includes a second decorative layer 40. The second decorative layer 40 includes a second design portion 41 that forms the design and a second transparent portion 43 that is a non-formation portion of the second design portion 41. The second design portion 41 can transmit at least a portion of the incident light at each position. The cross-sectional shape of the second design portion 41 may be rectangular as in the illustrated example, but may also be trapezoidal or other shapes. The second transparent portion 43 may be a void such as a hole as in the example shown in FIG. 21 , or may be formed of, for example, a transparent resin. Light incident on the transparent portion 33 is transmitted without obstruction. Similar to the example shown in FIG. 18 , the decorative layer 30 includes a design portion 31 that forms the design and a transparent portion 33 that is a non-formation portion of the design portion 31. 21 , it is preferable that the transparent portion 33 of the decorative layer 30 and the second transparent portion 43 of the second decorative layer 40 at least partially overlap. On the other hand, the second design portion 41 at least partially overlaps the design portion 31 so that the second decorative layer 40 is properly laminated on the decorative layer 30.

[0096] With the decorative member 10 having such a decorative laminate 20, a design can be formed not only by the design formed by the second design portion 41 but also by the pattern of the second design portion 41 and the second transmissive portion 43. Therefore, the decorative member 10 can display a design with excellent design quality. Furthermore, more light can be transmitted through the portion where the transmissive portion 33 and the second transmissive portion 43 overlap. Therefore, the image light from the display device 5 can be observed more clearly.

[0097] In a modified example of the decorative laminate 20 shown in FIG. 22, the decorative laminate 20 includes a decorative layer 30, a dark layer 35, a second decorative layer 40, and a second dark layer 45. The second dark layer 45 covers the other side of the decorative layer 30. The second decorative layer 40 is laminated on the other side of the decorative layer 30, that is, on the other side of the second dark layer 45. The decorative layer 30 also includes a design portion 31 and a transparent portion 33 that is a non-formation portion of the design portion 31. The second decorative layer 40 also includes a second design portion 41 and a second transparent portion 43 that is a non-formation portion of the second design portion 41. As in the example shown in FIG. 21, it is preferable that the transparent portion 33 of the decorative layer 30 and the second transparent portion 43 of the second decorative layer 40 at least partially overlap.

[0098] The decorative member 10 having such a decorative laminate 20 has the second dark color layer 45, so that the dark color layer 35 can clearly display the design formed by the decorative layer 30, and the second dark color layer 45 can also recess the design formed by the decorative layer 30. Furthermore, the design can be formed not only by the design formed by the second design portion 41, but also by the pattern of the second design portion 41 and the second transparent portion 43. This allows the decorative member 10 to display a design with excellent designability.

[0099] Fig. 23 shows a modified example of the decorative layer 30 observed from the front. In the modified example shown in Fig. 23, the visible light reflectance of the decorative layer 30 decreases with increasing distance from a certain position. In particular, in the example shown, the visible light reflectance of the decorative layer 30 decreases with increasing distance from a straight line passing through the center. In other words, the design formed by the decorative layer 30 becomes darker with increasing distance from a straight line passing through the center.

[0100] The decorative member 10 having such a decorative layer 30 can display a design with excellent designability.

[0101] Fig. 24 shows a modified example of the dark layer 35 observed from the front. In the modified example shown in Fig. 24, the visible light transmittance of the dark layer 35 decreases with increasing distance from a certain position. In particular, in the example shown, the visible light transmittance of the dark layer 35 decreases with increasing distance from a straight line passing through the center. In other words, the dark color of the dark layer 35 becomes darker with increasing distance from a straight line passing through the center.

[0102] According to the decorative member 10 having such a dark color layer 35, the design formed by the decorative layer 30 becomes darker and clearer as it moves away from a certain position. Therefore, the decorative member 10 can display a design with excellent designability.

[0103] In particular, in a combination of the modified decorative layer 30 shown in Fig. 23 and the modified dark layer 35 shown in Fig. 24, it is preferable that the change in the visible light transmittance of the dark layer 35 corresponds to the change in the visible light reflectance of the decorative layer 30. Specifically, it is preferable that the visible light reflectance of the decorative layer 30 decreases and the visible light transmittance of the dark layer 35 decreases with increasing distance from the same position. A decorative member 10 having such a decorative layer 30 and dark layer 35 can display a design with excellent designability.

[0104] Naturally, it is also possible to combine the various modifications as appropriate.

[0105] 1 Display device with decorative member 5 Display device 6 Display surface 10 Decorative materials 11 Optical functional layer 13 Transparent molding 20 Decorative laminate 21 Base material 23 Protective layer 25 Heat seal layer 27 Backer Tier 29 Transparent adhesive layer 30 Decorative layer 31 Design Department 33 Transparent part 35 Dark layer 40 Second decorative layer 41 Second Design Department 43 2nd transparent section 45 Second dark layer 50 Transmission clarity measuring device 51 Light source 52 Slit 53 First lens 54 Second lens 55 Optical Comb 56 Receiver

Claims

1. A decorative member comprising a decorative laminate having a decorative layer that forms a design and a dark color layer that covers the decorative layer from one side, the decorative layer transmits at least a portion of light incident at each position; the dark layer absorbs a portion of the incident light at each position while transmitting another portion of the incident light; The total light transmittance of the decorative member is 2% or more and 75% or less, The transmitted light clarity of the decorative member measured in accordance with JIS K 7374:2007 using an optical comb with a width of 0.5 mm is 25% or more, The decorative laminate further includes a second decorative layer laminated on the other side of the decorative layer, The second decorative layer forms a design different from that of the decorative layer, the second decorative layer transmits at least a portion of light incident at each position; The second decorative layer has a second design portion that forms a design, and a second transparent portion that is a portion where the second design portion is not formed.

2. A decorative member comprising a decorative laminate having a decorative layer that forms a design and a dark color layer that covers the decorative layer from one side, the decorative layer transmits at least a portion of light incident at each position; the dark layer absorbs a portion of the incident light at each position while transmitting another portion of the incident light; The total light transmittance of the decorative member is 2% or more and 75% or less, The transmitted light clarity of the decorative member measured in accordance with JIS K 7374:2007 using an optical comb with a width of 0.5 mm is 25% or more, A decorative member, wherein the visible light reflectance of the decorative layer decreases with increasing distance from a certain position.

3. A decorative member comprising a decorative laminate having a decorative layer that forms a design and a dark color layer that covers the decorative layer from one side, the decorative layer transmits at least a portion of light incident at each position; the dark layer absorbs a portion of the incident light at each position while transmitting another portion of the incident light; The total light transmittance of the decorative member is 2% or more and 75% or less, The transmitted light clarity of the decorative member measured in accordance with JIS K 7374:2007 using an optical comb with a width of 0.5 mm is 25% or more, The decorative member, wherein the visible light transmittance of the dark color layer decreases with increasing distance from a certain position.

4. 4. The decorative member according to claim 1, wherein the transmitted clarity of the decorative member measured using an optical comb with a width of 0.125 mm is 25% or more.

5. At each position of the decorative member, L ＊ a ＊ b ＊ a in the color system ＊ The value of b ＊ For the value of [(a ＊ ) ２ +(b ＊ ) ２ ] １／２ Satisfy the relationship ≦8, The decorative member according to claim 1 .

6. The decorative member according to claim 1 , wherein the decorative layer has a design portion that forms a design and a transparent portion that is a portion where the design portion is not formed.

7. The decorative laminate further includes a second dark layer covering the decorative layer from the other side, The decorative member according to claim 1 , wherein the second dark layer absorbs a part of the light incident at each position while transmitting another part of the light.

8. The decorative member according to claim 1 , wherein the decorative layer contains an optical interference pigment.

9. The decorative member according to claim 1 , wherein the decorative laminate further comprises a protective layer that protects the decorative layer.

10. A decorative member disposed opposite a display device that displays an image on a display surface, A decorative laminate having a decorative layer that forms a design and a dark color layer that covers the decorative layer from one side, the decorative layer transmits at least a portion of light incident at each position; the dark layer absorbs a portion of the incident light at each position while transmitting another portion of the incident light; The total light transmittance of the decorative member is 2% or more and 75% or less, The transmitted light clarity of the decorative member measured in accordance with JIS K 7374:2007 using an optical comb with a width of 0.5 mm is 25% or more, The decorative laminate further includes a transparent heat seal layer that forms a surface of the decorative laminate, The decorative member, wherein the decorative layer and the dark color layer are disposed facing the entire display surface.

11. The decorative member according to claim 1 , further comprising a transparent backer layer that forms a surface of the decorative laminate.

12. The decorative member according to claim 1 , further comprising a transparent adhesive layer that forms a surface of the decorative laminate.

13. the dark color layer forms a surface of the decorative laminate, The decorative member according to claim 1 , wherein the dark color layer has adhesive properties.

14. A decorative member disposed opposite a display device that displays an image on a display surface, A decorative laminate having a decorative layer that forms a design and a dark color layer that covers the decorative layer from one side, the decorative layer transmits at least a portion of light incident at each position; the dark layer absorbs a portion of the incident light at each position while transmitting another portion of the incident light; The total light transmittance of the decorative member is 2% or more and 75% or less, The transmitted light clarity of the decorative member measured in accordance with JIS K 7374:2007 using an optical comb with a width of 0.5 mm is 25% or more, Further comprising an optical functional layer laminated on the decorative laminate, the optical functional layer forms a surface of the decorative member, The decorative member, wherein the decorative layer and the dark color layer are disposed facing the entire display surface.

15. The decorative member according to claim 1 , further comprising a transparent molded body laminated on the decorative laminate.

16. a display device having a display surface; The decorative member according to any one of claims 1 to 15, which is provided facing the display surface, The display device is provided on one side of the decorative member.

17. a display device having a display surface; The decorative member according to any one of claims 1 to 15, which is provided facing the display surface, The display device is provided on the other side of the decorative member.

18. a display device having a display surface; a decorative member provided facing the display surface, The decorative member includes a decorative laminate having a decorative layer that forms a design and a dark color layer that covers the decorative layer from one side, the decorative layer transmits at least a portion of light incident at each position; the dark layer absorbs a portion of the incident light at each position while transmitting another portion of the incident light; The total light transmittance of the decorative member is 2% or more and 75% or less, The transmitted light clarity of the decorative member measured in accordance with JIS K 7374:2007 using an optical comb with a width of 0.5 mm is 25% or more, the display device is provided on one side of the decorative member, the display device includes a light source and a light shield that forms an image by blocking a portion of light from the light source; The display device with a decorative member displays the image in a portion where the decorative layer and the dark color layer are provided facing the display surface.

19. a display device having a display surface; a decorative member provided facing the display surface, The decorative member includes a decorative laminate having a decorative layer that forms a design and a dark color layer that covers the decorative layer from one side, the decorative layer transmits at least a portion of light incident at each position; the dark layer absorbs a portion of the incident light at each position while transmitting another portion of the incident light; The total light transmittance of the decorative member is 2% or more and 75% or less, The transmitted light clarity of the decorative member measured in accordance with JIS K 7374:2007 using an optical comb with a width of 0.5 mm is 25% or more, the display device is provided on the other side of the decorative member, the display device includes a light source and a light shield that forms an image by blocking a portion of light from the light source; The display device with a decorative member displays the image in a portion where the decorative layer and the dark color layer are provided facing the display surface.

Images