WO2021131422A1 - 加飾シートおよび表示ユニット - Google Patents

加飾シートおよび表示ユニット Download PDF

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Publication number
WO2021131422A1
WO2021131422A1 PCT/JP2020/043047 JP2020043047W WO2021131422A1 WO 2021131422 A1 WO2021131422 A1 WO 2021131422A1 JP 2020043047 W JP2020043047 W JP 2020043047W WO 2021131422 A1 WO2021131422 A1 WO 2021131422A1
Authority
WO
WIPO (PCT)
Prior art keywords
decorative sheet
colored
pattern
layer
decorative
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/043047
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
雅典 矢吹
映美 宮下
小林　浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alps Alpine Co Ltd
Original Assignee
Alps Alpine Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alps Alpine Co Ltd filed Critical Alps Alpine Co Ltd
Priority to DE112020006366.6T priority Critical patent/DE112020006366T5/de
Priority to CN202080087861.1A priority patent/CN114829145B/zh
Priority to JP2021566918A priority patent/JP7386260B2/ja
Publication of WO2021131422A1 publication Critical patent/WO2021131422A1/ja
Priority to US17/839,604 priority patent/US12508792B2/en
Anticipated expiration legal-status Critical
Priority to JP2023127511A priority patent/JP7551981B2/ja
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133331—Cover glasses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133374—Constructional arrangements; Manufacturing methods for displaying permanent signs or marks
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/28—Multiple coating on one surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2274/00—Thermoplastic elastomer material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/402—Coloured
    • B32B2307/4023—Coloured on the layer surface, e.g. ink
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2451/00—Decorative or ornamental articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B32B2457/208—Touch screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/003—Interior finishings
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters

Definitions

  • the present invention relates to a decorative sheet and a display unit.
  • a decorative sheet having a decorative pattern for example, leather pattern, metal pattern, wood grain pattern, etc.
  • a decorative pattern for example, leather pattern, metal pattern, wood grain pattern, etc.
  • a technique is used in which the surface of a part to be decorated is decorated with a decoration pattern by pasting.
  • the screen displayed on the display device cannot be suitably transmitted, so that the display is displayed on the display device.
  • the displayed screen cannot be clearly seen from the surface side of the decorative sheet.
  • the decorative sheet of one embodiment is a material-like decorative sheet that forms a material pattern on the surface of the component to be decorated by being attached to the surface of the component to be decorated, and is a sheet-like and transparent base film and a base.
  • the back side of the film is provided with a colored layer which is formed by using one or more inks and represents a material pattern, and the front side of the base film is provided with an uneven portion which exhibits a tactile sensation according to the material pattern. It has a non-colored pattern composed of a plurality of non-colored areas that are not partially colored by ink.
  • the screen displayed on the display device provided on the back side of the decorative sheet can be clearly visually recognized from the front side of the decorative sheet.
  • FIG. 1 An exploded perspective view of the display unit according to the embodiment.
  • the figure which shows the display example by the display unit which concerns on one Embodiment The figure which shows the display example by the display unit which concerns on one Embodiment
  • the figure which shows the implementation result of the comparative example of the display unit which concerns on one Embodiment The figure which shows typically the dimension specification part and the viewing angle of the decorative sheet in the comparative example of the display unit which concerns on one Embodiment.
  • the figure which shows the 2nd modification of the decorative sheet which concerns on one Embodiment The figure which shows the 3rd modification of the decorative sheet which concerns on one Embodiment
  • FIG. 1 is an exploded perspective view of the display unit 10 according to the embodiment.
  • the display unit 10 shown in FIG. 1 is a device mounted on a vehicle such as an automobile and displays various screens (for example, an operation screen, a map screen, a camera screen, etc.) related to the vehicle.
  • the display unit 10 includes a cloth pattern-like (an example of "material-like") decorative sheet 100 and a liquid crystal display 12.
  • the liquid crystal display 12 displays various screens (for example, a map screen, an operation screen, an information display screen, an application screen, etc.).
  • the decorative sheet 100 is a flexible sheet-like member having a cloth pattern (an example of a "material pattern", for example, denim-like) on the surface.
  • the decorative sheet 100 is attached to the surface of the liquid crystal display 12 (or a transparent plate provided in front of the liquid crystal display 12) to decorate the surface of the liquid crystal display 12 (or the transparent plate) with a cloth pattern. can do.
  • the surface of the decorative sheet 100 is unevenly processed according to the cloth pattern.
  • the decorative sheet 100 can exhibit a tactile sensation corresponding to the cloth pattern to the contact body (for example, the finger of the operator) in contact with the surface of the liquid crystal display 12 (or the transparent plate).
  • the decorative sheet 100 has light transmission. As a result, when the liquid crystal display 12 displays an image, the decorative sheet 100 can transmit the image and make the image visible from the front surface side of the decorative sheet 100.
  • FIG. 2 is a diagram schematically showing a cross-sectional configuration of the decorative sheet 100 according to the embodiment.
  • the decorative sheet 100 includes a resin film 120, a transparent sheet 110, a colored layer 130, and an adhesive layer 140 in this order from the front side (upper side in the drawing).
  • the resin film 120 is provided on the outermost side of the decorative sheet 100.
  • the resin film 120 is bonded to the front surface (upper surface in the drawing) of the transparent sheet 110.
  • the surface of the resin film 120 has uneven portions 120A corresponding to the cloth pattern presented by the colored layer 130.
  • the resin film 120 gives the surface of the decorative sheet 100 a tactile sensation (that is, a tactile sensation as if touching the surface of a real cloth pattern material) according to the cloth pattern presented by the colored layer 130. It is presented to a contact body (for example, a human hand, a finger, etc.) that comes into contact with.
  • the uneven portion 120A is formed by printing a transparent color thermal transfer ink in multiple layers on the surface of the resin film 120 by thermal transfer printing using a thermal transfer printer.
  • an elastomer resin is used in the resin film 120 as a suitable example of the resin material.
  • the uneven portion 120A is not limited to being formed by thermal transfer, and may be formed by, for example, screen printing.
  • the transparent sheet 110 is an example of a "base film” and is a base layer of the decorative sheet 100.
  • the decorative sheet 100 is formed by laminating other layers on the transparent sheet 110.
  • a flexible transparent sheet-like resin material for example, PMMA (PolyMethylMethacrylate), urethane, PET (Polyethylene Terephthalate), etc.
  • PMMA PolyMethylMethacrylate
  • PET Polyethylene Terephthalate
  • the transparent sheet 110 is provided so as to be overlapped with the front surface of the colored layer 130, it also functions as a protective layer for protecting the surface of the colored layer 130.
  • the colored layer 130 is formed on the back surface (lower surface in the drawing) of the transparent sheet 110.
  • the colored layer 130 has a decorative layer 130A and a light-shielding layer 130B.
  • the decorative layer 130A represents a cloth pattern (for example, denim tone) presented by the decorative sheet 100.
  • the decorative layer 130A is formed by laminating one or more ink layers according to the cloth pattern.
  • the decorative layer 130A has a first ink layer 131, a second ink layer 132, and a third ink layer 133 in this order from the top.
  • the first ink layer 131 is formed by using C (Cyan) color ink.
  • the second ink layer 132 is formed by using M (Magenta) color ink.
  • the third ink layer 133 is formed by using Y (Yellow) color ink.
  • the light-shielding layer 130B is formed on the back surface of the decorative layer 130A.
  • the light-shielding layer 130B blocks the light emitted from the back side of the decorative sheet 100.
  • the light-shielding layer 130B is formed by laminating one or more ink layers.
  • the light-shielding layer 130B has a fourth ink layer 134 and a fifth ink layer 135 in this order from the top.
  • the fourth ink layer 134 is formed by using W (White) color ink.
  • the fifth ink layer 135 is formed by using B (Black) color ink.
  • the light-shielding layer 130B mainly makes the liquid crystal display 12 existing on the back side of the decorative sheet 100 almost invisible from the front side of the decorative sheet 100 when the liquid crystal display 12 is not displaying the screen 12A. It is provided for the purpose.
  • each of the plurality of ink layers 131 to 135 of the colored layer 130 directly applies the thermal transfer ink to the back surface of the transparent sheet 110 by thermal transfer printing using a thermal transfer printer. Formed using.
  • the thickness of the colored layer 130 in the decorative sheet 100 can be made extremely thin, about "6 ⁇ m".
  • the adhesive layer 140 is decorated so that the decorative sheet 100 can be attached to the surface of a component to be decorated (for example, a liquid crystal display 12, a transparent plate provided in front of the liquid crystal display 12). It is formed on the innermost back side (lower side in the figure) of the sheet 100. In the present embodiment, the adhesive layer 140 is formed on the back surface of the colored layer 130.
  • the adhesive layer 140 is formed by using an adhesive such as OCA (Optical Clear Adhesive).
  • OCA Optical Clear Adhesive
  • the adhesive layer 140 may not be formed at the time of shipment of the decorative sheet 100. In this case, for example, the adhesive layer 140 may be formed when the decorative sheet 100 is attached to the surface of the component to be decorated.
  • FIG. 3 is a partially enlarged view of the surface of the colored layer 130 in the decorative sheet 100 according to the embodiment.
  • a part of the surface of the colored layer 130 is enlarged and represented in pixel units.
  • the colored layer 130 extends in parallel and diagonally with respect to each other when the Y-axis direction is the vertical direction and the X-axis direction is the horizontal direction with respect to one side of the decorative sheet 100.
  • a plurality of groove-shaped non-colored regions 150 are formed.
  • the non-colored region 150 is a region that is not partially colored with ink.
  • the colored layer 130 is formed with a diagonally striped non-colored pattern formed by the plurality of non-colored regions 150.
  • the portion of the colored layer 130 other than the non-colored region 150 is referred to as a colored region 154.
  • an enlarged region 152 is provided at the edge of each non-colored region 150.
  • the enlarged region 152 is a region in which the groove width of the non-colored region 150 in the light-shielding layer 130B is larger than the groove width of the non-colored region 150 in the decorative layer 130A. That is, the enlarged region 152 is a region in which the decorative layer 130A is formed but the light-shielding layer 130B is not formed.
  • the width of each of the left and right enlarged regions 152 is set to one pixel.
  • the groove width W1 of the colored region 154 is 160 ⁇ m, and the groove width W2 of the non-colored region 150 is 40 ⁇ m.
  • the area ratio of the colored region 154 is 80%.
  • the inclination angle ⁇ of the groove-shaped non-colored region 150 with respect to the lateral direction (X-axis) of the display screen of the liquid crystal display 12 is set to 60 °.
  • FIG. 4 shows the surface 10A of the display unit 10 when viewed from the front.
  • FIG. 5 shows the surface 10A of the display unit 10 when viewed from diagonally forward.
  • the display unit 10 is a decorative sheet when the liquid crystal display 12 does not display the screen 12A when the surface 10A of the display unit 10 is viewed from the front front.
  • the area ratio of the colored region 154 in the colored layer 130 of 100 to 80%, the cloth pattern of the decorative sheet 100 can be clearly visually recognized.
  • the liquid crystal display 12 existing on the back side of the decorative sheet 100 can be made almost invisible.
  • the display unit 10 is added when the liquid crystal display 12 displays the screen 12A when the surface 10A of the display unit 10 is viewed from the front front.
  • the screen 12A can be clearly seen.
  • the cloth pattern of the decorative sheet 100 can be made almost invisible.
  • the display unit 10 according to the embodiment does not display the screen 12A even when the surface 10A of the display unit 10 is viewed obliquely from the front.
  • the cloth pattern of the decorative sheet 100 can be clearly seen.
  • the liquid crystal display 12 existing on the back side of the decorative sheet 100 can be made almost invisible.
  • the display unit 10 even when the surface 10A of the display unit 10 is viewed obliquely from the front, when the liquid crystal display 12 displays the screen 12A, Since the viewing angle of the screen 12A that passes through the decorative sheet 100 is relatively large, the screen 12A can be clearly seen. Also in this case, it is possible to suppress the occurrence of moire on the screen 12A visually recognized from the surface 10A side of the display unit 10. Further, also in this case, the cloth pattern of the decorative sheet 100 can be made almost invisible in the area overlapping the screen 12A.
  • the display unit 10 according to the embodiment is provided with a non-colored pattern composed of a plurality of groove-shaped non-colored regions 150 on the colored layer 130 of the decorative sheet 100.
  • the display unit 10 according to the embodiment can transmit the screen displayed on the liquid crystal display 12 by the non-colored pattern so that the screen can be clearly seen from the surface side of the decorative sheet 100.
  • the display unit 10 according to one embodiment is provided with a diagonally striped non-colored pattern composed of a plurality of groove-shaped non-colored areas 150 extending diagonally with respect to the colored layer 130 of the decorative sheet 100.
  • the display unit 10 according to the embodiment can suppress the interference between the non-colored pattern and the screen displayed on the liquid crystal display 12, and therefore, according to the display unit 10 according to the embodiment.
  • the screen displayed on the liquid crystal display 12 is visually recognized from the surface side of the decorative sheet 100, it is possible to suppress the occurrence of moire on the screen.
  • the inclination angle of the non-colored region 150 in the colored layer 130 of the decorative sheet 100 is set to 60 °.
  • the display unit 10 according to the embodiment can further suppress the interference between the non-colored pattern and the screen displayed on the liquid crystal display 12, and therefore, the screen can be visually recognized from the surface side of the decorative sheet 100. When this is done, the occurrence of moire on the screen can be further suppressed.
  • the display unit 10 according to the embodiment is provided with the non-colored region 150 on the relatively thin colored layer 130, the viewing angle of the screen passing through the decorative sheet 100 can be relatively large. .. Therefore, the display unit 10 according to the embodiment can clearly see the screen passing through the decorative sheet 100 even when the screen is viewed from an angle.
  • the groove width of the non-colored region 150 in the light-shielding layer 130B is larger than the groove width of the non-colored region 150 in the decorative layer 130A.
  • the display unit 10 according to the embodiment prevents the edge portion of the light-shielding layer 130B from overlapping the non-colored region 150 even when the light-shielding layer 130B is misaligned when printing. be able to. Therefore, according to the display unit 10 according to the embodiment, it is possible to suppress a decrease in the amount of light transmitted through the non-colored region 150.
  • the groove width W1 of the colored region 154 is set to 160 ⁇ m
  • the groove width W2 of the non-colored region 150 is set to 40 ⁇ m, so that the area ratio of the colored region 154 in the colored layer 130 is 80. % (Within a suitable area ratio).
  • the display unit 10 according to the embodiment can sufficiently secure the printing area of the cloth pattern on the decorative sheet 100 while sufficiently ensuring the transparency of the screen on the decorative sheet 100. Therefore, according to the display unit 10 according to the embodiment, the cloth pattern presented by the decorative sheet 100 can be made visible from the surface side of the decorative sheet 100 in a finer and higher density.
  • FIG. 6 is a diagram showing the implementation results of the first embodiment of the display unit 10 according to the embodiment.
  • the moire suppressing effect was changed by changing the non-colored pattern of the colored layer 130 in the decorative sheet 100.
  • each of "grid pattern”, “error diffusion”, and “striped pattern” was used as the non-colored pattern.
  • the non-colored pattern when the non-colored pattern is "lattice-like", the non-colored pattern interferes with the screen displayed on the liquid crystal display 12 from the surface side of the decorative sheet 100. It was confirmed that moire occurred on the visually visible screen.
  • the display unit 10 according to the first embodiment is displayed on the liquid crystal display 12 by setting the non-colored pattern of the colored layer 130 in the decorative sheet 100 to be a “striped pattern”. It was confirmed that the screen could be clearly seen from the surface side of the decorative sheet 100.
  • FIG. 7 is a diagram showing an embodiment of a second embodiment of the display unit 10 according to one embodiment. In the second embodiment, it was confirmed how the moire suppressing effect was changed by changing the inclination angle of the non-colored region 150 in the decorative sheet 100.
  • each of "0 °”, “45 °”, “60 °”, and “90 °” was used as the inclination angle of the non-colored region 150.
  • the liquid crystal display 12 when the tilt angle of the non-colored region 150 is set to “45 °” with respect to the pixel arrangement (vertical and horizontal) of the screen displayed on the liquid crystal display 12, the liquid crystal display It was confirmed that the screen displayed on No. 12 can be clearly seen from the front surface side of the decorative sheet 100. In particular, in the second embodiment, it was confirmed that when the inclination angle of the non-colored region 150 is set to "60 °", the screen displayed on the liquid crystal display 12 can be visually recognized extremely clearly from the surface side of the decorative sheet 100. It was.
  • the display unit 10 according to the first embodiment is a liquid crystal display by setting the inclination angle of the non-colored region 150 in the decorative sheet 100 to "45 °" to "60 °". It was confirmed that the screen displayed on No. 12 can be clearly seen from the surface side of the decorative sheet 100.
  • FIG. 8 is a diagram showing an embodiment of a third embodiment of the display unit 10 according to the embodiment.
  • the third embodiment it was confirmed how the light-shielding property of the decorative sheet 100 changes by changing the groove width W2 of the non-colored region 150 in the decorative sheet 100.
  • each of “20 ⁇ m”, “40 ⁇ m”, “60 ⁇ m”, “80 ⁇ m”, “100 ⁇ m”, and “120 ⁇ m” is used as the groove width W2 of the non-colored region 150. There was.
  • the groove width W2 of the non-colored region 150 is set to “20 ⁇ m”, the non-colored region 150 is too thin, so that the non-colored region 150 is formed by a thermal transfer printer. It was confirmed that it would be difficult.
  • the groove width W2 of the non-colored region 150 when the groove width W2 of the non-colored region 150 is set to "40 ⁇ m" or "60 ⁇ m", the screen displayed on the liquid crystal display 12 is displayed on the decorative sheet 100. It was confirmed that it was clearly visible from the surface side. In particular, in the third embodiment, it was confirmed that when the groove width W2 of the non-colored region 150 is set to "40 ⁇ m", the screen displayed on the liquid crystal display 12 can be seen extremely clearly from the surface side of the decorative sheet 100. It was.
  • the display unit 10 sets the groove width W2 of the non-colored region 150 in the decorative sheet 100 to "40 ⁇ m” to "60 ⁇ m", thereby setting the liquid crystal display 12 It was confirmed that the screen displayed on the screen can be clearly seen from the surface side of the decorative sheet 100.
  • FIG. 9 is a diagram showing an embodiment of a fourth embodiment of the display unit 10 according to one embodiment.
  • the fourth embodiment it is confirmed how the quality of the screen visually recognized from the surface side of the decorative sheet 100 changes by changing the area ratio of the colored region 154 in the colored layer 130 of the decorative sheet 100. did.
  • each of "80%”, “75%”, “60%”, and “50%” was used as the area ratio of the colored region 154.
  • the screen displayed on the liquid crystal display 12 can be clearly seen from the surface side of the decorative sheet 100.
  • the area ratio of the colored region 154 is set to "80%”
  • the non-colored region 150 is extremely fine, and it becomes difficult to form the non-colored region 150 depending on the printing accuracy of the thermal transfer printer used. In some cases.
  • the screen displayed on the liquid crystal display 12 is displayed. It was confirmed that the decorative sheet 100 can be clearly seen from the surface side.
  • the screen when the area ratio of the colored region 154 is set to "75%”, the screen can be displayed on the decorative sheet without reducing the density of the screen visually recognized from the surface side of the decorative sheet 100. It was confirmed that it was extremely clearly visible from the surface side of 100.
  • the display unit 10 sets the area ratio of the colored region 154 in the decorative sheet 100 to "50%" to "80%", thereby setting the liquid crystal display 12 It was confirmed that the screen displayed on the screen can be clearly seen from the surface side of the decorative sheet 100.
  • FIG. 10 is a diagram showing an embodiment of a fifth embodiment of the display unit 10 according to the embodiment.
  • the fifth embodiment by changing the width of each of the left and right enlarged regions 152 in the light-shielding layer 130B of the decorative sheet 100, the light-shielding property of the decorative sheet 100 and the light-shielding property of the decorative sheet 100 are visually recognized from the surface side of the decorative sheet 100. We confirmed how the color turbidity on the screen changes.
  • each of "0 ⁇ m”, “40 ⁇ m”, and “80 ⁇ m” was used as the width of the enlarged region 152.
  • the display when the width of the enlarged region 152 is set to "0 ⁇ m" and "40 ⁇ m", the display is displayed on the liquid crystal display 12 without deteriorating the light-shielding property of the decorative sheet 100. It was confirmed that the displayed screen can be clearly seen from the surface side of the decorative sheet 100.
  • the width of the enlarged region 152 when the width of the enlarged region 152 is set to "40 ⁇ m”, the screen can be displayed on the decorative sheet 100 without causing color turbidity on the screen visually recognized from the surface side of the decorative sheet 100. It was confirmed that it was extremely clearly visible from the surface side of 100.
  • the widths of the left and right enlarged regions 152 in the light-shielding layer 130B of the decorative sheet 100 are set to "0 ⁇ m" to "40 ⁇ m". It was confirmed that the screen displayed on the liquid crystal display 12 can be clearly seen from the surface side of the decorative sheet 100.
  • FIG. 11 is a diagram showing an implementation result of a comparative example of the display unit 10 according to one embodiment.
  • FIG. 12 is a diagram schematically showing a dimension specification portion and a viewing angle of the decorative sheet in the comparative example of the display unit 10 according to the embodiment.
  • a decorative sheet for comparison which is different from the decorative sheet 100 according to one embodiment in the width a and the depth b of the opening for transmitting the screen, is "compared” using the prior art. It was used as “Example 1" and “Comparative Example 2". Then, in this comparative example, each of the decorative sheet 100, "Comparative Example 1", and “Comparative Example 2" according to the embodiment can be visually recognized from the front surface side of the decorative sheet (the back side of the decorative sheet). The viewing angle c of the screen displayed in) was obtained.
  • the width a of the opening formed in the light-shielding body (that is, the colored layer 130) (that is, the groove width of the non-colored region 150) is set to "40 ⁇ m", and the depth of the opening is set to "40 ⁇ m".
  • B that is, the thickness of the colored layer 130 was set to "6 ⁇ m”. This is because the decorative sheet 100 according to the embodiment forms an opening (that is, a non-colored region 150) with respect to the extremely thin thermal transfer ink which is a light-shielding body.
  • the display unit 10 according to the embodiment has an extremely large viewing angle c by forming an opening (that is, a non-colored region 150) with respect to the extremely thin thermal transfer ink. It was confirmed that it could be obtained. Therefore, according to this comparative example, the display unit 10 according to the embodiment can clearly see the screen 12A displayed on the liquid crystal display 12 even when the surface 10A of the display unit 10 is viewed from diagonally forward. It was confirmed that it was a thing. Further, it has been confirmed that the display unit 10 according to the embodiment can form the opening (that is, the non-colored region 150) in the colored layer 130 with high accuracy in pixel units. It was.
  • FIG. 13 is a diagram showing a first modification of the decorative sheet 100 according to the embodiment.
  • the decorative sheet 100-2 shown in FIG. 13 is different from the decorative sheet 100 shown in FIG. 3 in that the transparent sheet 110 is not provided.
  • the colored layer 130 is formed on the back surface of the resin film 120 by thermal transfer printing using a thermal transfer printer. That is, in the decorative sheet 100-2, the resin film 120 functions as a "base film”.
  • the decorative sheet 100-2 according to the first modification since the decorative sheet 100 does not have the transparent sheet 110 as compared with the decorative sheet 100 shown in FIG. 3, the cost can be reduced and the decoration can be reduced.
  • the transmittance of the screen on the sheet 100-2 can be increased. Therefore, according to the decorative sheet 100-2 according to the first modification, the screen displayed on the liquid crystal display 12 can be made more clearly visible from the surface side of the decorative sheet 100-2. ..
  • FIG. 14 is a diagram showing a second modification of the decorative sheet 100 according to the embodiment.
  • the decorative sheet 100-3 shown in FIG. 14 is different from the decorative sheet 100-2 shown in FIG. 13 in that a buffer layer 160 is further provided between the colored layer 130 and the adhesive layer 140.
  • the cushioning layer 160 absorbs the impact caused by the contact of the contact body with the surface of the decorative sheet 100-3.
  • a transparent sheet-shaped cushioning material for example, thermoplastic polyurethane elastoma
  • the cushioning layer 160 imparts elasticity to the decorative sheet 100-3 according to the cloth pattern represented by the decorative sheet 100-3. Therefore, the contact body in contact with the surface of the decorative sheet 100-3 can be provided with a tactile sensation closer to the surface of the real cloth pattern material.
  • FIG. 15 is a diagram showing a third modification of the decorative sheet 100 according to the embodiment.
  • the resin panel 170 is attached to the adhesive layer 140, and the electrostatic detection electrode 180 is provided on the back side of the resin panel 170. It is different from the decorative sheet 100-3 shown in FIG.
  • the decorative sheet 100-4 according to the third modification can be used as a touch panel device having a cloth pattern on the surface by providing the resin panel 170 and the electrostatic detection electrode 180.
  • the decorative sheet 100-4 can detect the proximity of the contact body to the surface.
  • the decorative sheet 100-4 can accept an input operation by the contact body.
  • the decorative sheet 100-4 can specify the contact position of the contact body and accept an input operation according to the contact position.
  • the decorative sheet described in the embodiment can be used for decorating interior parts for vehicles, for example, but the present invention is not limited to this, and the decorative sheet described in the embodiment is any decoration target. It can also be used for parts.
  • the decorative sheet described in the embodiment is not limited to a decorative object component having no electrostatic sensor (for example, a liquid crystal display), but also for a decorative object component having an electrostatic sensor (for example, a touch panel / liquid crystal display). Is also available.
  • the decorative sheet described in the embodiment represents a material pattern composed of a decorative pattern (for example, a wood grain pattern, a metal pattern, etc.) other than the cloth pattern pattern by the colored layer, and other by the uneven portion. It may be deformed so as to exhibit a tactile sensation according to the decorative pattern of Further, the uneven portion that exhibits a tactile sensation does not necessarily have to match the material pattern. That is, since the operator visually recognizes the material pattern, in addition to that, even if the tactile sensation presented to the operator by the surface of the decorative sheet is different from the tactile sensation of the real material, the operator is notified. It can remind you of the feeling as if you were touching a real material.
  • a decorative pattern for example, a wood grain pattern, a metal pattern, etc.
  • the base material of the decorative sheet is not limited to the sheet-like and transparent base film, but is a thin plate-like and transparent material (for example, a glass plate, a transparent resin plate, etc.). ) May be used.
  • the decorative sheet described in the embodiment is not limited to the decorative target component having a liquid crystal display, but also to the decorative target component having other display devices (for example, LED display device, organic EL display, etc.). It is available.
  • Display unit 12 Liquid crystal display 100 Decorative sheet 110 Transparent sheet 120 Resin film 120A Concavo-convex part 130 Colored layer 130A Decorative layer 130B Light-shielding layer 131 First ink layer 132 Second ink layer 133 Third ink layer 134 Fourth Ink layer 135 Fifth ink layer 140 Adhesive layer 150 Non-colored area 152 Enlarged area 154 Colored area

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Laminated Bodies (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
PCT/JP2020/043047 2019-12-27 2020-11-18 加飾シートおよび表示ユニット Ceased WO2021131422A1 (ja)

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DE112020006366.6T DE112020006366T5 (de) 2019-12-27 2020-11-18 Zierflächenkörper und Anzeigeeinheit
CN202080087861.1A CN114829145B (zh) 2019-12-27 2020-11-18 装饰片材以及显示单元
JP2021566918A JP7386260B2 (ja) 2019-12-27 2020-11-18 加飾シートおよび表示ユニット
US17/839,604 US12508792B2 (en) 2019-12-27 2022-06-14 Decorating sheet and display unit
JP2023127511A JP7551981B2 (ja) 2019-12-27 2023-08-04 加飾シートおよび表示ユニット

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JP2019-238447 2019-12-27

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CN114829145A (zh) 2022-07-29
JP7386260B2 (ja) 2023-11-24
JPWO2021131422A1 (https=) 2021-07-01
JP2023143998A (ja) 2023-10-06
US20220305756A1 (en) 2022-09-29
JP7551981B2 (ja) 2024-09-18
CN114829145B (zh) 2024-05-14
DE112020006366T5 (de) 2022-10-06

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