Decorative members, display devices with decorative members

Abstract

To provide an infrared-transmissive decorative member.SOLUTION: A decorative member 10 comprises a decorative laminate 20. The decorative laminate 20 has a dark layer 35. The dark layer 35 absorbs a part of light incident at each position and transmits the rest. Th decorative member 10 has a visible light transmittance in a range of 2% or more and 75% or less. The decorative member 10 has an infrared light transmittance of 70% or more.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] This disclosure relates to a decorative member and a display device with a decorative member. [Background technology]

[0002] Display devices that display images using light are widely used. When the image is not displayed, such display devices usually appear black. On the other hand, in surface components such as automobiles, furniture, and building materials, harmony with the surrounding environment is considered extremely important. Currently, display devices applied to various fields such as automobiles, furniture, and building materials are not only expected to have the function of displaying images, but are also required to harmonize with the surrounding environment in terms of design.

[0003] To harmonize the design of a display device when it is not displaying an image with the devices arranged around it, it is conceivable to provide decorative members facing the display surface of the display device and the devices arranged around it. For example, decorative members like those described in Patent Document 1 display a design that harmonizes with the surrounding environment by forming a design with a decorative part. [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2019-179197 [Overview of the Initiative] [Problems that the invention aims to solve]

[0005] For example, it is conceivable that an infrared device that emits and / or receives infrared rays may be placed around a display device such as a car console. Therefore, the decorative member will be provided facing the infrared device. For the infrared device to function properly, the decorative member must be able to transmit infrared rays sufficiently. [Means for solving the problem]

[0006] The decorative member of the present disclosure is a decorative member including a decorative laminate, wherein the decorative laminate has a dark-colored layer that absorbs part of the light incident at each position and transmits the other part, the visible light transmittance of the decorative member is 2% or more and 75% or less, and the infrared transmittance of the decorative member is 70% or more.

[0007] In the decorative member of the present disclosure, the haze value of the decorative member may be 8% or less.

[0008] In the decorative member of the present disclosure, at each position of the decorative member, L ,

[0010] ,

[0011] , , , , , a * b * In the a * value and b * value in the color system, [(a * ) 2 +(b * ) 2 1 / 2 ≦8 may satisfy the relationship.

[0009] In the decorative member of the present disclosure, the dark-colored layer may contain any one of bismuth sulfide, perylene black pigment, nigrosine black dye, or a mixture of a yellow dye having a perinone skeleton or a quinoline skeleton, a magenta dye having an anthraquinone skeleton or a quinophthalone skeleton, and a cyan dye having an anthraquinone skeleton or a quinophthalone skeleton.

[0010] In the decorative member of the present disclosure, the decorative laminate may further have a design layer that forms a design, the dark-colored layer covers the design layer from one side, and the design layer may transmit at least part of the light incident at each position.

[0011] In the decorative member of the present disclosure, the design layer may have a design portion that forms a design and a transmission portion that is a non-formation portion of the design portion.​

[0012] In the decorative member of this disclosure, The decorative laminate further comprises a second dark layer that covers the design layer from the other side. The second dark layer may absorb some of the incident light at each position while transmitting other portions.

[0013] In the decorative member of this disclosure, The decorative laminate further comprises a second design layer laminated on the other side of the design layer, The second design layer forms a design different from the first design layer. The second design layer may transmit at least a portion of the incident light at each position.

[0014] In the decorative member of this disclosure, the second design layer may have a second design portion that forms a design and a second transparent portion that is a portion not formed by the second design portion.

[0015] In the decorative member of this disclosure, the design layer may contain an optical interference pigment.

[0016] In the decorative member of this disclosure, the visible light reflectance of the design layer may decrease as it moves away from a certain position.

[0017] In the decorative member of this disclosure, The aforementioned design layer includes a plurality of dots that form the design, The size of the dot may be 2000 μm or less.

[0018] In the decorative member of this disclosure, The aforementioned design layer includes a plurality of dots that form the design, The ratio of the area on which the dots are provided to the unit area of ​​the design layer may be 50% or less.

[0019] In the decorative member of this disclosure, the visible light transmittance of the dark color layer may decrease as it moves away from a certain position.

[0020] In the decorative member of this disclosure, the decorative laminate may further have a protective layer that protects the dark color layer.

[0021] In the decorative member of this disclosure, the decorative laminate may further have a transparent heat-seal layer forming the surface of the decorative laminate.

[0022] In the decorative member of this disclosure, the decorative laminate may further have a transparent backer layer forming the surface of the decorative laminate.

[0023] In the decorative member of this disclosure, the decorative laminate may further have a transparent adhesive layer forming the surface of the decorative laminate.

[0024] In the decorative member of this disclosure, The dark colored layer forms the surface of the decorative laminate. The dark layer may be adhesive.

[0025] In the decorative member of this disclosure, The decorative laminate further comprises an optical functional layer laminated thereon, The optical functional layer may form the surface of the decorative member.

[0026] The decorative member of this disclosure may further include a transparent molded body laminated on the decorative laminate.

[0027] The display device with decorative members of this disclosure is A display device having a display surface, An infrared device that emits and / or receives infrared rays, The system comprises one of the above-described decorative members provided facing the display surface and the infrared device.

[0028] In the decorative display device of the present disclosure, the display device may include a light source and a light-shielding object that forms an image by shielding a portion of the light from the light source. [Effects of the Invention]

[0029] According to this disclosure, infrared rays can be transmitted through the decorative member. [Brief explanation of the drawing]

[0030] [Figure 1] Figure 1 is an exploded perspective view showing the entire display device with decorative elements. [Figure 2] Figure 2 is an exploded cross-sectional view of an example of a display device with decorative elements. [Figure 3] Figure 3 is an exploded cross-sectional view of another example of a display device with decorative elements. [Figure 4] Figure 4 is a cross-sectional view showing an example of a display device. [Figure 5] Figure 5 is a cross-sectional view showing an example of a decorative member. [Figure 6] Figure 6 is a cross-sectional view showing another example of a decorative member. [Figure 7] Figure 7 is a cross-sectional view showing a first example of a decorative laminate. [Figure 8] Figure 8 is a cross-sectional view showing a second example of a decorative laminate. [Figure 9] Figure 9 is a cross-sectional view showing a third example of a decorative laminate. [Figure 10] Figure 10 is a cross-sectional view showing a fourth example of a decorative laminate. [Figure 11] Figure 11 is a cross-sectional view showing a fifth example of a decorative laminate. [Figure 12] Figure 12 is a cross-sectional view showing a sixth example of a decorative laminate. [Figure 13] Figure 13 is a cross-sectional view showing a seventh example of a decorative laminate. [Figure 14] Figure 14 shows a display device with a decorative element in a state where the display device is emitting image light. [Figure 15] Figure 15 shows a display device with a decorative element in a state where the display device is not emitting image light. [Figure 16] Figure 16 shows an example of a modified decorative laminate. [Figure 17] Figure 17 shows another variation of the decorative laminate. [Figure 18] Figure 18 shows yet another variation of the decorative laminate. [Figure 19] Figure 19 shows yet another variation of the decorative laminate. [Figure 20] Figure 20 shows yet another variation of the decorative laminate. [Figure 21] Figure 21 shows an example of a modified design layer. [Figure 22] Figure 22 shows a modified example of the dark layer. [Modes for carrying out the invention]

[0031] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. In the drawings attached to this specification, the scale and aspect ratios of the dimensions have been appropriately changed and exaggerated from those of the actual objects for the sake of illustration and ease of understanding.

[0032] In this specification, the terms “layer,” “sheet,” and “film” are not distinguished from each other solely on the basis of differences in name. For example, the term “layer” is a concept that includes components that may be called sheets or films.

[0033] In this specification, terms such as "parallel," "orthogonal," and "identical," as well as values ​​for length and angle, which specify shapes, geometric conditions, and their degrees, are intended to be interpreted not in strict terms, but to include a range that can be expected to function similarly.

[0034] Figure 1 is a schematic exploded perspective view of the decorative display device 1 of this embodiment. As shown in Figure 1, the decorative display device 1 comprises a display device 5, an infrared device 7, and a decorative member 10. The display device 5 has a display surface 6 for displaying images. The decorative member 10 is positioned facing the display surface 6 of the display device 5 and the infrared device 7. In the illustrated example, the display device 5 and the infrared device 7 are adjacent to each other, but they may be separated from each other. The decorative display device 1 can take on both an image-hidden state and an image-display state. In the image-hidden state, the decorative display device 1 is given aesthetic appeal by the design displayed by the decorative member 10. In the image-display state, the decorative display device 1 displays the image shown on the display surface 6 of the display device 5.

[0035] In the illustrated example, the decorative display device 1 is shown as a flat plate. However, the decorative display device 1 may be curved by curving each component of the decorative display device 1. For example, only the decorative member 10 may be curved, or both the display surface 6 of the display device 5 and the decorative member 10 may be curved.

[0036] Figures 2 and 3 show cross-sectional views of one and other examples of a display device 1 with a decorative member. As shown in Figures 2 and 3, the decorative member 10 includes an optical functional layer 11, a transparent molded body 13, and a decorative laminate 20. The decorative laminate 20 includes at least a dark color layer 35. In the examples shown in Figures 2 and 3, the decorative laminate 20 further includes a design layer 30. The dark color layer 35 covers the design layer 30 from one side.

[0037] In one example shown in Figure 2, the decorative laminate 20 is positioned such that the side with the dark color layer 35 facing the display device 5 is opposite to the design layer 30. In other words, the display device 5 is positioned on the side of the decorative laminate 20 where the dark color layer 35 covers the design layer 30. On the other hand, in another example shown in Figure 3, the decorative laminate 20 is positioned such that the side with the design layer 30 facing the display device 5 is opposite to the side of the decorative laminate 20 where the dark color layer 35 covers the design layer 30. Figures 2 and 3 are diagrams illustrating the position of the display device 5 relative to the design layer 30 and the dark color layer 35 of the decorative laminate 20, and the positions of the optical functional layer 11 and the transparent molded body 13 are not limited to the examples shown in Figures 2 and 3. In the examples shown in Figures 2 and 3, the decorative laminate 20 has only the design layer 30 and the dark color layer 35, but it may have other components as shown in the examples described later.

[0038] The display device 5 can display an image on its display surface 6. The display device 5 can emit image light from its display surface 6. The display device 5 can be in a state where an image is displayed on its display surface 6, or in a state where no image is displayed on its display surface 6. Any display device such as a liquid crystal display, plasma display, or 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.

[0039] Alternatively, the display device 5 may display an image based on brightness and darkness by blocking a portion of the light with a light-shielding object. In this case, as shown in Figure 4, the display device 5 includes a light source 5a that emits light and a light-shielding object 5b that forms an image by blocking a portion of the light from the light source 5a. The light-shielding object 5b has a shape corresponding to the image to be displayed. The unformed portion of the light-shielding object 5b becomes 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 manner in order to make the intensity of the light transmitted through the portion where the light-shielding object 5b is not formed uniform. The light-shielding object 5b may be formed integrally with the decorative member 10.

[0040] The infrared device 7 emits and / or receives infrared light. The infrared device 7 is, for example, an infrared sensor. For example, the infrared device 7 may be a device that detects information about external objects by emitting infrared light and receiving infrared light reflected from the outside. As a more specific example, the infrared device 7 may be a position detection sensor that utilizes infrared light and detects a position corresponding to the display surface 6 of the display device 5. However, the infrared device 7 may function independently of the display device 5. For example, the infrared device 7 may detect information such as the position and movement of external objects regardless of the display surface 6 of the display device 5. Alternatively, the infrared device 7 may be an infrared camera. The wavelength of the infrared light emitted and / or received by the infrared device 7 is typically 900 nm to 1000 nm or 1500 nm to 1600 nm.

[0041] Figures 5 and 6 show cross-sectional views of one example and another example of the layer configuration of the decorative member 10. As shown in Figures 5 and 6, the optical functional layer 11 is laminated on the decorative laminate 20 and forms the surface of the decorative member 10. That is, the optical functional layer 11 is the outermost layer of the decorative member 10. The transparent molded body 13 is laminated on the decorative laminate 20. In the example shown in Figure 5, the transparent molded body 13 forms the surface of the decorative member 10. That is, the transparent molded body 13 is the outermost layer of the decorative member 10, distinct from the optical functional layer 11. On the other hand, in the example shown in Figure 6, the transparent molded body 13 is positioned between the optical functional layer 11 and the decorative laminate 20.

[0042] As used herein, "transparent" means that the visible light transmittance, as determined by the average value of the transmittance at each wavelength when measured using a spectrophotometer (Shimadzu Corporation "UV-3100PC", compliant with JIS K 0115) within the range of 400 nm to 700 nm, is 50% or more, preferably 80% or more.

[0043] The optical functional layer 11 imparts various functions to the decorative member 10. Examples of functions that can be imparted by the optical functional layer 11 include low reflection (LR), anti-reflective (AR), anti-glare (AG), ultraviolet shielding (reflective) function, and scratch resistance (HC). The optical functional layer 11 may impart multiple of these functions. In particular, when the optical functional layer 11 imparts a low reflection function or an anti-reflective function, it is preferable that the visible light reflectance of the optical functional layer 11 is 5% or less.

[0044] The transparent molded body 13 supports the optical functional layer 11 and the decorative laminate 20. Because the transparent molded body 13 is transparent, it does not easily obstruct the image light from the display device 5 or the design displayed by the decorative laminate 20. The transparent molded body 13 is provided by molding, for example, a thermoplastic material. By molding, the transparent molded body 13 can be provided in a desired shape. Examples of materials for the transparent molded body 13 include glass, acrylic, polycarbonate, ABS, PET, polypropylene, and other resins.

[0045] The decorative laminate 20 displays a design, thereby adding aesthetic appeal to the decorative member-equipped display device 1. The decorative laminate 20 can take on various configurations. Figures 7 to 13 show different examples of the configuration of the decorative laminate 20. The following describes each example of the configuration of the decorative laminate 20 shown in Figures 7 to 13. Note that the same reference numerals are used for corresponding parts in each example, and redundant explanations are omitted.

[0046] The decorative laminate 20 of the first example shown in Figure 7 comprises a base material 21, a design 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 Figure 7, the base material 21 also forms the surface of the decorative laminate 20.

[0047] The base material 21 is a support that appropriately supports the design layer 30 and the dark color layer 35. The base material 21 allows the decorative laminate 20 to have an appropriate thickness. The base material 21 is a transparent film-like component. The material of the base material 21 can be any material that is transparent and can appropriately support the design layer 30 and the dark color layer 35, but examples include acrylic, polycarbonate, and polycarbonate / acrylic laminate. Considering transparency and appropriate support for the design layer 30 and the dark color layer 35, the base material 21 preferably has a thickness of 10 μm to 500 μm.

[0048] The transparent adhesive layer 29 is a layer for bonding the decorative laminate 20 to other components. 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 elastic polymers. The transparent adhesive layer 29 has sufficient adhesiveness and a thickness that does not make the decorative laminate 20 too thick. For example, the thickness of the transparent adhesive layer 29 is 5 μm to 300 μm. In addition, to prevent the transparent adhesive layer 29 from unintentionally adhering to other components, the transparent adhesive layer 29 may be covered with a peelable separator layer (not shown) before bonding the decorative laminate 20 to the transparent molded body 13.

[0049] The design layer 30 forms the design displayed by the decorative laminate 20. More specifically, by reflecting light incident from the outside at each position of the design layer 30, a design observable from the outside is formed. The design layer 30 can form designs such as figures, patterns, designs, colors, pictures, photographs, characters, marks, pictograms, letters, and numbers. For example, as a design that can harmonize with the surrounding environment in which the decorative display device 1 is installed, the design layer 30 can form wood grain or marble patterns or geometric patterns. In particular, the design layer 30 can form anti-glare designs, matte designs, glossy designs, and metallic designs.

[0050] The design layer 30 contains various organic pigments, organic fillers, and dyes of different colors to appropriately form the design. In particular, the pigments contained in the design layer 30 are preferably light interference pigments. Examples of light interference pigments include those in which a pigment is coated onto base particles such as flaky mica, aluminum, or glass. Titanium dioxide is preferred as the pigment coating the base particles. Light interference pigments express a predetermined color by multiple reflections of light.

[0051] The design layer 30 can transmit at least a portion of the incident light at each position. This allows the design layer 30 to transmit image light from the display device 5 at each position. The design layer 30 may also have portions that transmit all of the incident light. In other words, a portion of the design layer 30 may be transparent.

[0052] The design layer 30 contains multiple dots. The dots consist of, for example, the various organic pigments, organic fillers, and dyes of the aforementioned colors. The multiple dots form a design. The size of the dots is preferably 2000 μm or less, and more preferably 500 μm or less. The size of the dot refers to the maximum length along one direction of the dot. The design layer 30 has areas where dots are provided and areas where dots are not provided. In the areas where dots are not provided, the design layer 30 can transmit light. The density of dots in the design layer 30, in other words, the ratio of the area where dots are provided to the unit area of ​​the design layer 30, is preferably 50% or less, and more preferably 30% or less.

[0053] The dark layer 35 makes the display device 5 and the infrared device 7 difficult to observe from the outside. The dark layer 35 covers the design layer 30 from one side, making the design formed by the design layer 30 darker and clearer. The dark layer 35 absorbs some of the incident light at each position while transmitting other parts. The dark layer 35 is typically black. The dark layer 35 may contain only a pigment or a dye, or both a pigment and a dye. Examples of pigments to be included in the dark layer 35 include bismuth sulfide and perylene black, and examples of dyes include nigrosine black dye, perinone skeleton dye, quinoline skeleton dye, and anthraquinone skeleton dye. The dark layer 35 may also contain toning pigments and toning dyes. For example, if the dark layer 35 is reddish-black, the dark layer 35 may further contain a blue pigment or blue dye as a toning pigment. Alternatively, the dark layer 35 may contain pigments or dyes of yellow, cyan, and magenta. For example, the dark layer 35 may contain a mixture of a yellow dye with a perinone or quinoline skeleton, a magenta dye with an anthraquinone or quinophthalone skeleton, and a cyan dye with an anthraquinone or quinophthalone skeleton. If the dark layer 35 contains pigments, it is preferable that the particle size of the pigments is 300 nm or less. The particle size of the pigments 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 solution that forms the dark layer 35, as described later.

[0054] The decorative laminate 20 in the second example shown in Figure 8, like the first example shown in Figure 7, has a base material 21, a design layer 30, a dark color layer 35, and a transparent adhesive layer 29, the transparent adhesive layer 29 forming the surface of the decorative laminate 20. In the example shown in Figure 8, the base material 21 is located between the design layer 30 and the transparent adhesive layer 29.

[0055] The decorative laminate 20 of the third example shown in Figure 9 comprises a base material 21, a design layer 30, and a dark color layer 35. In the third example, the dark color layer 35 forms the surface of the decorative laminate 20 and is adhesive. To prevent the dark color layer 35 from unintentionally adhering to other components, the dark color layer 35 may be covered with a peelable separator layer (not shown) before the decorative laminate 20 is bonded to the transparent molded body 13. Such a dark color layer 35 is, for example, OCA containing a pigment or dye to make it black. In the example shown in Figure 9, the base material 21 also forms the surface of the decorative laminate 20.

[0056] With this dark-colored layer 35, the decorative laminate 20 can be bonded to the transparent molded body 13 without the need for a separate adhesive layer. This allows the decorative laminate 20 to be made thinner.

[0057] The decorative laminate 20 of the fourth example shown in Figure 10, like the third example shown in Figure 9, has a base material 21, a design layer 30, and a dark color layer 35. The dark color layer 35 forms the surface of the decorative laminate 20 and is adhesive. In the example shown in Figure 10, the base material 21 is located between the design layer 30 and the dark color layer 35.

[0058] The fifth example of the decorative laminate 20 shown in Figure 11 comprises a base material 21, a backer layer 27, a design layer 30, and a dark color layer 35. In the example shown in Figure 11, the base material 21 and the backer layer 27 each form the surface of the decorative laminate 20.

[0059] The backer layer 27 is a protective layer for the design layer 30 and the dark color layer 35. The backer layer 27 is transparent so as not to interfere with the design formed by the design layer 30. The backer layer 27 is laminated onto the design layer 30 or the dark color layer 35 by, for example, an adhesive layer (not shown). The backer layer 27 is made of, for example, a transparent thermoplastic resin material. Specific examples include ABS, PC, PMMA, etc. The thickness of the backer layer 27 is, for example, 50 μm to 1000 μm.

[0060] The backer layer 27 protects the design layer 30 and the dark color layer 35, allowing them to properly form the design. This enables the design layer 30 to form the intended design.

[0061] The decorative laminate 20 of the sixth example shown in Figure 12 has a protective layer 23, a backer layer 27, a design layer 30, and a dark color layer 35. In the example shown in Figure 12, the protective layer 23 and the backer layer 27 each form the surface of the decorative laminate 20.

[0062] The protective layer 23 is a layer that protects the design layer 30 and the dark color layer 35. Typically, the protective layer 23 has a hard coat function with scratch resistance. 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 onto the optical functional 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 siloxane bonds, etc. The thickness of the protective layer 23 is, for example, 0.2 μm or more and 20 μm or less.

[0063] Because the protective layer 23 protects the design layer 30, the design layer 30 is less likely to be damaged even if the decorative member 10 is subjected to impact from the outside. Therefore, the design layer 30 can form the intended design.

[0064] The decorative laminate 20 of the seventh example shown in Figure 13 has a protective layer 23, a heat-seal layer 25, a design layer 30, and a dark color layer 35. In the example shown in Figure 13, the protective layer 23 and the heat-seal layer 25 each form the surface of the decorative laminate 20.

[0065] The heat seal layer 25 does not have adhesive properties at room temperature, but becomes adhesive when heated, allowing it to bond with other components. 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 design layer 30. The heat seal layer 25 is made of, for example, a vinyl chloride vinyl acetate copolymer resin, an acrylic resin, a polyester resin, or a urethane resin. The thickness of the heat seal layer 25 is, for example, 0.2 μm to 20 μm.

[0066] The heat-seal layer 25 forming the surface of the decorative laminate 20 allows the decorative laminate 20 to be appropriately molded and attached to the transparent molded body 13 of a desired shape. In other words, decorative members 10 of any shape can be easily manufactured.

[0067] The decorative laminates 20 in the first to sixth examples shown in Figures 7 to 12 become decorative members 10 when bonded to a transparent molded body 13 via a transparent adhesive layer 29 or a backer layer 27. On the other hand, the decorative laminate 20 in the seventh example shown in Figure 13 becomes a decorative member 10 when heated thermoplastic resin is molded on the side of the heat seal layer 25 to form a transparent molded body 13. When the decorative laminate 20 is bonded to the transparent molded body 13 via a backer layer 27, the material of the transparent molded body 13 is preferably resin. On the other hand, when the decorative laminate 20 is bonded to the transparent molded body 13 via a transparent adhesive layer 29 or when the transparent molded body 13 is molded on the side of the heat seal layer 25, the material of the transparent molded body 13 is preferably glass.

[0068] Furthermore, the decorative laminates 20 from the first to sixth examples described above can be combined as appropriate.

[0069] The infrared transmittance of the decorative member 10 is high so that it can properly transmit infrared rays transmitted and / or received by the infrared device 7. Specifically, the infrared transmittance of the decorative member 10 is 70% or more, preferably 80% or more. The wavelengths of infrared rays transmitted and / or received by the infrared device 7 are typically 900 nm to 1000 nm or 1500 nm to 1600 nm. Therefore, the transmittance of the decorative member 10 to infrared rays with wavelengths of 900 nm to 1000 nm or 1500 nm to 1600 nm is preferably 70% or more, preferably 80% or more.

[0070] Infrared transmittance can be measured using a spectrophotometer (Shimadzu Corporation "UV-3100PC", compliant with JIS K 0115).

[0071] If the visible 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 is properly observed, the visible light transmittance of the decorative member 10 is preferably 2% or more, and more preferably 10% or more. In particular, if the display device 5 is a liquid crystal display, plasma display, organic EL display, etc., the visible light transmittance of the decorative member 10 is even more preferably 30% or more, and even more preferably 50% or more, in order to properly transmit the image light. Alternatively, if the display device 5 includes a light source 5a and a light shield 5b, a light source 5a with high brightness such as an LED light or a fluorescent lamp is used. In this case, to ensure that the image from the display device 5 is properly observed and that the decorative member 10 can properly display the design, the visible light transmittance of the decorative member 10 is preferably 5% or more and 10% or less.

[0072] On the other hand, if the visible light transmittance of the decorative member 10 is too high, external light will not be sufficiently reflected by the decorative member 10, especially the design layer 30, and the decorative member 10 will not be able to properly display the design. To ensure that the design is properly displayed, the visible light transmittance of the decorative member 10 is preferably 75% or less, and more preferably 40% or less.

[0073] Visible light transmittance is determined as the average value of the transmittance at each wavelength when measured using a spectrophotometer (Shimadzu Corporation "UV-3100PC", compliant with JIS K 0115) within the measurement wavelength range of 400 nm to 700 nm.

[0074] It is preferable that the haze value of the decorative member 10 is small so that the image light transmitted through the decorative member 10 is properly recognized. Specifically, it is preferable that the haze value of the decorative member 10 be 8% or less, and more preferably 3% or less. The haze value of the decorative member 10 can be reduced by reducing the particle size of the pigment contained in the dark color layer 35. Specifically, if the particle size of the pigment contained in the dark color layer 35 is 300 nm or less, the haze value of the decorative member 10 can be set to 8%.

[0075] The haze value is expressed as the ratio of the diffuse transmittance to the total transmittance of an object, and represents the diffusivity of light transmitted through the object. Total transmittance is the ratio of the amount of light transmitted through an object to the amount of light that enters the object. Diffuse transmittance is the ratio of the amount of light transmitted through an object in directions other than the straight-line direction, i.e., the amount of light that is diffused and transmitted, to the amount of light that enters the object. Total transmittance and diffuse transmittance can be measured using a haze meter compliant with JIS K 7361 (for example, Murakami Color Technology Laboratory, product number: HM-150).

[0076] If the saturation of the decorative member 10 is high, the light transmitted through the decorative member 10 may change from the intended color. In other words, the image light from the display device 5 may not be properly observed. It is preferable that the saturation of the decorative member 10 be low so that the image light can be transmitted through the decorative member 10 with almost no change in color. Specifically, L * a * b * a in color system * The value and b * Regarding the value, [(a * ) 2 +(b * )2 ] 1 / 2 ≤8 It is preferable that the relationship is satisfied. [(a * ) 2 +(b * ) 2 ] 1 / 2 ≤4 It is more preferable to satisfy the relationship.

[0077] L * a * b * L in color systems * a * , b * Each of these values ​​can be measured, for example, using a spectrophotometer (Konica Minolta "CM-700d"), by measuring the reflected light from the object.

[0078] Next, the operation of the decorative member-equipped display device 1 of this embodiment will be described.

[0079] When no image is displayed on the display surface 6 of the display device 5, as shown in Figure 14, the decorative member 10 displays a design in the decorative display device 1. More specifically, the decorative laminate 20 displays the design formed by the design layer 30. In other words, the decorative display device 1 is given a design aesthetic. The displayed design prevents the display surface 6 of the display device 5 and the infrared device 7 from being observed by external observers, allowing the decorative display device 1 to harmonize with its surrounding environment in terms of design aesthetics.

[0080] On the other hand, when the display device 5 displays an image on the display surface 6, as shown in Figure 15, the image light passes through the decorative member 10. More specifically, a portion of the incident image light is transmitted at each position of the design layer 30 and the dark color layer 35 of the decorative laminate 20. This allows an observer to observe the image. In other words, the display device 1 with the decorative member can display an image that is intended to be observed, and an external observer can observe the image. In particular, because the image light can be transmitted at each position of the decorative member 10, the display device 1 with the decorative member can display the image clearly.

[0081] An example of a method for manufacturing the decorative member 10 and the decorative laminate 20 will be described. In this example, the method for manufacturing the decorative member 10 having the decorative laminate 20 of the first example shown in Figure 7 will be described.

[0082] A design layer 30 is provided on the substrate 21, for example, by printing. The design layer 30 is provided to form a desired design. The design layer 30 is provided to be sufficiently thin, for example, so that at least a portion of the incident light can be transmitted at each position.

[0083] Next, a coating liquid is applied to the design layer 30 to form a dark color layer 35. The coating liquid contains black pigments such as bismuth sulfide and perylene black, and black dyes such as azo black dyes, nigrosine black dyes, perinone skeleton dyes, quinoline skeleton dyes, and anthraquinone skeleton dyes. The coating liquid may also contain toning pigments and toning dyes. Alternatively, the coating liquid may be black by containing pigments and dyes of yellow, cyan, and magenta. For example, the coating liquid may be black by containing a mixture of a yellow dye with a perinone or quinoline skeleton, a magenta dye with an anthraquinone or quinophthalone skeleton, and a cyan dye with an anthraquinone or quinophthalone skeleton. The particle size of the pigments contained in the coating liquid is 300 nm or less. The coating liquid is made of, for example, an ultraviolet-curing resin. When the coating liquid is irradiated with ultraviolet light, the coating liquid hardens and the dark color layer 35 is formed.

[0084] Subsequently, a transparent adhesive layer 29 is applied on the dark-colored layer 35. This creates the decorative laminate 20 of the first example shown in Figure 7. The decorative laminate 20 is then bonded to the transparent molded body 13 via the transparent adhesive layer 29 to produce the decorative member 10.

[0085] It is being considered to position decorative elements not only facing display devices but also infrared devices. For example, it is being considered to position display devices and infrared devices on the console of an automobile, and to position decorative elements facing the display devices and infrared devices. This would make the display devices and infrared devices difficult to observe from the outside, and the decorative elements would provide a design that harmonizes with the surrounding environment. However, conventional decorative elements contain pigments such as carbon black or titanium black as a dark layer. Dark layers containing such pigments have an infrared transmittance of less than 50%, and infrared rays do not pass through sufficiently. As a result, infrared devices positioned facing the decorative elements may not function properly.

[0086] The decorative member 10 of this embodiment has an infrared transmittance of 70% or more. In particular, the decorative member 10 has an infrared transmittance of 70% or more for wavelengths of 900 nm to 1000 nm or 1500 nm to 1600 nm. Such a decorative member 10 can transmit infrared rays to a degree that allows the infrared device 7 to function properly.

[0087] The infrared transmittance of the decorative member 10 can be increased by appropriately selecting the materials of each layer of the decorative member 10. In particular, it can be increased by appropriately selecting the material contained in the layer that can absorb a lot of infrared rays in the decorative member 10, specifically the dark color layer 35. In this embodiment, the dark color layer 35 contains one of the following: bismuth sulfide, perylene black pigment, nigrosine black dye, or a mixture of a yellow dye with a perinone or quinoline skeleton, a magenta dye with an anthraquinone or quinophthalone skeleton, and a cyan dye with an anthraquinone or quinophthalone skeleton. These materials have high transmittance of infrared rays, especially infrared rays with wavelengths of 900 nm to 1000 nm or 1500 nm to 1600 nm. With a dark color layer 35 containing these materials, the infrared transmittance of the decorative member 10 can be increased while the dark color layer 35 can be made appropriately dark in color. These materials have heat resistance and other properties, and are durable. In other words, it is resistant to deterioration even when heat or other external factors are applied. To put it another way, the color and infrared transmittance of the dark layer 35 are less likely to change.

[0088] Since some of the light incident on the pigment can be diffusely reflected, if the particle size of the pigment is too large, the haze of the light transmitted through the dark layer 35 will increase. As a result, the image light transmitted through the decorative member 10 will not be observed as intended. Therefore, it is preferable that the particle size of the pigment contained in the dark layer 35 is small, specifically, that the particle size of the pigment contained in the coating liquid forming the dark layer 35 is 300 nm or less.

[0089] The haze value of the decorative member 10 is 8% or less. In other words, light transmitted through the decorative member 10 is not sufficiently diffused. Therefore, light transmitted through the decorative member 10, especially image light from the display device 5, can be clearly observed even through the decorative member 10. That is, the image light can be properly observed.

[0090] At each position of the decorative member 10, L * a * b * a in color system * The value and b * Regarding the value, [(a * ) 2 +(b * ) 2 ] 1 / 2 ≤8 The following relationship is satisfied: that is, the saturation of the decorative member 10 is reduced. As a result, the light transmitted through the decorative member 10, especially the image light from the display device 5, is more easily observed in the intended color even when viewed through the decorative member 10. In other words, the image light can be observed appropriately.

[0091] In the decorative member 10, the decorative laminate 20 further has a design layer 30 that forms a design. The design layer 30 makes the design displayed by the decorative member 10 highly aesthetic.

[0092] The design layer 30 contains an optical interference pigment. Because the optical interference pigment expresses color by multiple reflections of light, specific wavelengths of light transmitted through the design layer 30 are less likely to be absorbed, resulting in less coloration of the transmitted light. 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.

[0093] The size of the dots forming the design in the design layer 30 is 2000 μm or less. The ratio of the area covered by dots to the unit area of ​​the design layer 30 is 50% or less. By having dots of an appropriate size and density that form the design, the design layer 30 can transmit light appropriately. As a result, image light from the display device 5 can be transmitted appropriately through the decorative member 10.

[0094] In the example shown in Figure 2, 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 design layer 30. In this case, the design formed by the design layer 30 is observed without the dark color layer 35. Therefore, the decorative member 10 can display the design brightly. The dark color layer 35 makes the design formed by the design layer 30 appear darker and clearer. This gives the display device 5 excellent design quality.

[0095] In the example shown in Figure 3, the display device 5 is provided on the other side of the decorative member 10, that is, on the side opposite to the side where the dark layer 35 covers the design layer 30. In this case, the design formed by the design layer 30 is observed through the dark layer 35. Because the dark layer 35 is visible, the design formed by the design layer 30 is observed to be recessed by the thickness of the dark layer 35. In particular, the depth of the design is observed to change depending on the direction from which the design is observed. This makes it possible to give the display device 5 excellent design properties.

[0096] As described above, the decorative member 10 of this embodiment is a decorative member comprising a decorative laminate 20, the decorative laminate 20 having a dark-colored layer 35 that absorbs a portion of the incident light at each position while transmitting another portion, the visible light transmittance of the decorative member 10 being 2% or more and 75% or less, and the infrared transmittance of the decorative member 10 being 70% or more. Such a decorative member 10 can transmit visible light such as image light, or transmit infrared light while displaying a design.

[0097] It is possible to make various modifications to the above-described embodiment. Below, we will describe modified versions of the decorative member 10 with reference to the figures. Note that in the modified versions shown in Figures 16 to 20, components other than the design layer and the dark color layer are omitted.

[0098] In the embodiment described above, the decorative laminate 20 has a design layer 30 and a dark color layer 35. However, the design layer 30 may be omitted in the decorative laminate 20. In this case, the decorative laminate 20 displays a dark design using the dark color layer 35. Even with such a decorative member 10, the display surface 6 of the display device 5 and the infrared device 7 will not be visible to external observers, and the display device 1 with the decorative member can be harmonized with the surrounding environment in terms of design.

[0099] In a modified example of the decorative laminate 20 shown in Figure 16, the design layer 30 has a design portion 31 that forms a design and a transparent portion 33 that is not formed by the design portion 31. Similar to the embodiment described above, the design 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 illustrated example, but it 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 Figure 16, or it may be formed of, for example, a transparent resin. Light incident on the transparent portion 33 is transmitted without obstruction.

[0100] With a decorative member 10 having such a design layer 30, a design can be formed not only by the design portion 31, but also by the pattern between the design portion 31 and the transparent portion 33. As a result, the decorative member 10 can display a design with excellent aesthetic appeal.

[0101] In a modified example of the decorative laminate 20 shown in Figure 17, the decorative laminate 20 further includes a second dark layer 45. The second dark layer 45 covers the design layer 30 from the other side. That is, the design layer 30 is located between the dark layer 35 and the second dark layer 45. The second dark layer 45 has substantially the same structure as the dark layer 35. That is, the second dark layer 45 absorbs a portion of the incident light at each position while transmitting other portions. The material contained in the second dark layer 45 is the same as the material contained in the dark layer 35 described above. Therefore, the second dark layer 45 has high transmittance of infrared rays, especially infrared rays with wavelengths of 900 nm to 1000 nm or 1500 nm to 1600 nm. The thickness of the second dark layer 45 may differ from the thickness of the dark layer 35.

[0102] A decorative member 10 having such a second dark layer 45 can display the design formed by the design layer 30 more clearly and darkly by the dark layer 35, and the design formed by the design layer 30 can be displayed recessed by the second dark layer 45. As a result, the decorative member 10 can display a design with superior aesthetic appeal.

[0103] In a modified example of the decorative laminate 20 shown in Figure 18, the decorative laminate 20 further comprises a second design layer 40. The second design layer 40 is laminated on the other side of the design layer 30. The second design layer 40 forms a different design from the design layer 30. The second design layer 40 has substantially the same structure as the design layer 30. That is, the second design layer 40 transmits at least a portion of the incident light at each position.

[0104] A decorative member 10 having such a second design layer 40 can display multiple designs in a superimposed manner. As a result, the decorative member 10 can display a design with superior aesthetic appeal.

[0105] In a modified example of the decorative laminate 20 shown in Figure 19, the decorative laminate 20 further comprises a second design layer 40, the second design layer 40 having a second design portion 41 that forms a design and a second transparent portion 43 that is an unformed 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 it may also be trapezoidal or the like. The second transparent portion 43 may be a void such as a hole, as in the example shown in Figure 19, or it 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 Figure 16, the design layer 30 has a design portion 31 that forms a design and a transparent portion 33 that is an unformed portion of the design portion 31. As shown in Figure 21, it is preferable that the transparent portion 33 of the design layer 30 and the second transparent portion 43 of the second design layer 40 overlap at least partially. On the other hand, the second design portion 41 overlaps at least partially with the design portion 31 so that the second design layer 40 is properly laminated on the design layer 30.

[0106] With a 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 transparent portion 43. Therefore, the decorative member 10 can display a design with excellent aesthetic appeal. More light can be transmitted in the area where the transparent portion 33 and the second transparent portion 43 overlap. Therefore, the image light from the display device 5 can be observed more clearly.

[0107] In a modified example of the decorative laminate 20 shown in Figure 20, the decorative laminate 20 has a design layer 30, a dark color layer 35, a second design layer 40, and a second dark color layer 45. The second dark color layer 45 covers the design layer 30 from the other side. The second design layer 40 is laminated on the other side of the design layer 30 and on the other side of the second dark color layer 45. The design layer 30 has a design portion 31 and a transparent portion 33 which is an unformed portion of the design portion 31. The second design layer 40 has a second design portion 41 and a second transparent portion 43 which is an unformed portion of the second design portion 41. Similar to the example shown in Figure 19, it is preferable that the transparent portion 33 of the design layer 30 and the second transparent portion 43 of the second design layer 40 overlap at least partially.

[0108] The decorative member 10 having such a decorative laminate 20 has a second dark layer 45, which allows the design formed by the design layer 30 to be displayed more clearly and darkly by the dark layer 35, and also allows the design formed by the design layer 30 to be displayed in a recessed manner by the second dark layer 45. The design can be formed not only by the design formed by the second design portion 41, but also by the pattern between the second design portion 41 and the second transparent portion 43. As a result, the decorative member 10 can display a design with excellent aesthetic appeal.

[0109] Figure 21 shows a modified example of the design layer 30 as observed from the front. In the modified example shown in Figure 21, the visible light reflectance of the design layer 30 decreases as the distance from a certain position increases. In particular, in the illustrated example, the visible light reflectance of the design layer 30 decreases as the distance from the line passing through the center increases. In other words, the design formed by the design layer 30 becomes darker as the distance from the line passing through the center increases.

[0110] A decorative member 10 having such a design layer 30 can display a design with excellent aesthetic appeal.

[0111] Figure 22 shows a modified example of the dark layer 35 as observed from the front. In the modified example shown in Figure 22, the visible light transmittance of the dark layer 35 decreases as the distance from a certain point increases. In particular, in the illustrated example, the visible light transmittance of the dark layer 35 decreases as the distance from the line passing through the center increases. In other words, the dark color of the dark layer 35 becomes darker as the distance from the line passing through the center increases.

[0112] With a decorative member 10 having such a dark colored layer 35, the design formed by the design 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 aesthetic appeal.

[0113] In particular, in combinations of the modified design layer 30 shown in Figure 21 and the modified dark-colored layer 35 shown in Figure 22, it is preferable that the change in the visible light transmittance of the dark-colored layer 35 corresponds to the change in the visible light reflectance of the design layer 30. Specifically, it is preferable that the visible light reflectance of the design layer 30 decreases and the visible light transmittance of the dark-colored layer 35 decreases as the distance from the same position increases. A decorative member 10 having such a design layer 30 and dark-colored layer 35 can display a design with excellent aesthetic appeal.

[0114] Of course, it is also possible to combine each of the variations as appropriate.

[0115] 1. Display device with decorative elements 5 Display device 6 Display surface 10 Decorative components 11 Optical functional layer 13 Transparent molded body 20 Decorated Laminate 21 Base material 23 Protective layer 25 Heat seal layer 27 Backers 29 Transparent adhesive layer 30 Design Layers 31 Design Department 33 Transparent part 35 Dark layer 40. Second design layer 41. Design Division 2 43 2nd transparent part 45 Second dark layer

Claims

1. A display device having a display surface, An infrared device that emits and / or receives infrared rays, The system comprises a decorative member provided facing the display surface and the infrared device, The decorative member has a decorative laminate, The decorative laminate has a dark layer at each position that absorbs a portion of the incident light while transmitting another portion. The visible light transmittance of the decorative member is 10% or more and 40% or less. A display device with a decorative element, wherein the infrared transmittance of the decorative element is 80% or more.

2. The display device with a decorative member according to claim 1, wherein the haze value of the decorative member is 8% or less.

3. At each position of the decorative member, L ＊ a ＊ b ＊ a in the color system ＊ The value and b ＊ Regarding the value, [[(a ＊ ) ２ +(b ＊ ) ２ １／２ The display device with a decorative member according to claim 1 or 2, satisfying the relationship of [[(a ＊ ) ２ +(b ＊ ) ２ １／２ ≤ 8

4. The display device with a decorative member according to any one of claims 1 to 3, wherein the dark color layer comprises bismuth sulfide, perylene black pigment, nigrosine black dye, or a mixture of a perinone skeleton or quinoline skeleton yellow dye, an anthraquinone skeleton or quinophthalone skeleton magenta dye and an anthraquinone skeleton or quinophthalone skeleton cyan dye.

5. The aforementioned decorative laminate further comprises a design layer that forms a design, The dark colored layer covers the design layer from one side. The decorative member-equipped display device according to any one of claims 1 to 4, wherein the design layer transmits at least a portion of the incident light at each position.

6. The decorative member-equipped display device according to claim 5, wherein the design layer comprises a design portion that forms a design and a transparent portion that is not formed by the design portion.

7. The decorative laminate further comprises a second dark layer that covers the design layer from the other side. The display device with a decorative member according to claim 5 or 6, wherein the second dark layer absorbs a portion of the incident light at each position while transmitting another portion.

8. The decorative laminate further comprises a second design layer laminated on the other side of the design layer, The second design layer forms a design different from the first design layer. The display device with a decorative member according to any one of claims 5 to 7, wherein the second design layer transmits at least a portion of the incident light at each position.

9. The display device with a decorative member according to claim 8, wherein the second design layer has a second design portion that forms a design and a second transparent portion that is a non-formed portion of the second design portion.

10. The display device with a decorative member according to any one of claims 5 to 9, wherein the design layer comprises an optical interference pigment.

11. The display device with a decorative member according to any one of claims 5 to 10, wherein the visible light reflectance of the design layer decreases as it moves away from a certain position.

12. The aforementioned design layer includes a plurality of dots that form the design, The display device with a decorative member according to any one of claims 5 to 11, wherein the size of the dot is 2000 μm or less.

13. The aforementioned design layer includes a plurality of dots that form the design, The display device with a decorative member according to any one of claims 5 to 11, wherein the ratio of the area on which the dots are provided to the unit area of ​​the design layer is 50% or less.

14. The display device with a decorative member according to any one of claims 1 to 13, wherein the visible light transmittance of the dark colored layer decreases as it moves away from a certain position.

15. The decorative laminate further comprises a protective layer that protects the dark color layer, as described in any one of claims 1 to 14, for the display device with a decorative member.

16. The decorative laminate further comprises a transparent heat-seal layer forming the surface of the decorative laminate, as described in any one of claims 1 to 15.

17. The decorative laminate further comprises a transparent backer layer forming the surface of the decorative laminate, as described in any one of claims 1 to 15.

18. The decorative laminate further comprises a transparent adhesive layer forming the surface of the decorative laminate, as described in any one of claims 1 to 15.

19. The dark colored layer forms the surface of the decorative laminate. The dark-colored layer is adhesive, as described in any one of claims 1 to 15, for the display device with a decorative member.

20. The decorative laminate further comprises an optical functional layer laminated thereon, The display device with a decorative member according to any one of claims 1 to 19, wherein the optical functional layer forms the surface of the decorative member.

21. Display device with decorative member according to any one of claims 1 to 20, further comprising a transparent molded body laminated on the decorative laminate.

22. The display device with a decorative member according to any one of claims 1 to 21, comprising a light source and a light-shielding object that forms an image by blocking a portion of the light from the light source.

Images