JP5600998B2 - Laminated sheet for information display panel, information display panel, and information display device - Google Patents

Description

  The present invention relates to a laminated sheet for information display panels provided with front and back printed layers, and more particularly to a laminated sheet for information display panels comprising a light shielding layer and a reflective layer, an information display panel, and an information display device.

  As a conventional information display panel, a chromatic light-shielding reflective layer including an opening and a white transmissive reflective layer are sequentially laminated on a portion corresponding to characters / pictures on the back of a transparent substrate, and a white layer and a dark color layer are formed on the surface. Are sequentially stacked, and there is a structure in which a portion corresponding to a character / picture is an opening.

  By using the configuration of the information display panel described above, when the lamp is not lit, the light / character portion is visually recognized as white surrounded by a chromatic color, and the surroundings of the character / image are visually recognized as dark. In addition, when the lamp is lit, white light is transmitted through the white transmissive reflective layer, and the white light passing through the opening of the chromatic light-shielding reflective layer is visually recognized. The light is reflected again by the chromatic light-shielding / reflective layer on the back surface, passes through the opening on the front surface, and is visually recognized as chromatic indirect light (Patent Document 1).

4-120990

However, although the conventional technology expresses the three-dimensional effect of characters and pictures with chromatic indirect light and white direct light when the lamp is lit, the color remains the same as when observing with external light when the lamp is not lit, It was not illuminated and could not be expressed with color changes.
According to the present invention, when the light source is turned on, the viewer visually recognizes indirect light leaking from the outer peripheral portion of the character / pattern, etc., thereby creating a three-dimensional effect on the character / picture, etc., and adding a color change when the light source is not lit. The challenge is to express characters and designs beautifully.

The present invention has the following configuration in order to solve the above problems.
The invention according to claim 1 is a laminated sheet for an information display panel that displays information by being illuminated by a light source installed on the back surface, and has a light-transmitting support and a light source for the support A first reflection layer laminated in a first region, a first light shielding layer laminated on a surface opposite to the light source of the first reflection layer, and the support. A first decorative layer stacked on a second region adjacent to the first region when viewed from the thickness direction of the support, of the surface opposite to the light source, and the first decoration The thickness of the support among the second decorative layer formed on the surface opposite to the light source of the layer and formed with a pattern forming a design shape including characters, and the light source side surface of the support A second reflective layer stacked in a third region adjacent to the first region and spaced apart from the second region as viewed from the direction; A second light shielding layer laminated on a light source side surface of the projecting layer and a second region of the light source side surface of the support, and among the second light shielding layers, A region corresponding to a region where the second decorative layer is laminated as viewed from the thickness direction of the support is a laminated sheet characterized by low light shielding properties.

  The invention according to claim 2 is a laminated sheet for an information display panel that displays information by being illuminated by a light source installed on the back surface, and has a light-transmitting support and a light source for the support Of the surface opposite to the light source of the first reflective layer, the first reflective layer laminated on the first region and the second region adjacent to the first region, Of these, the first light-shielding layer laminated in the first region, the first decorative layer laminated in the second region of the surface of the first reflective layer opposite to the light source, Of the surface on the light source side of the support, the second decorative layer is formed on the surface on the opposite side of the light source of the first decorative layer, and the pattern forming the design shape including characters is formed. The substrate is laminated in a third region adjacent to the first region and separated from the second region when viewed from the thickness direction of the support, A second reflective layer laminated in a region corresponding to a region where the second decorative layer is not formed in the second region as viewed from the direction, and on the light source side of the second reflective layer A laminated sheet having a second light-shielding layer laminated on a surface.

  The invention according to claim 3 is the third decorative layer which is disposed between the support and the second reflective layer in the third region and has a total light transmittance of 4% or more and 80% or less. The laminated sheet according to claim 1, further comprising:

  The invention according to claim 4 is a first diffusion layer laminated in the third region of the surface of the support opposite to the light source and having a haze value of 5% or more and a total light transmittance of 60% or more. The laminated sheet according to claim 3, further comprising:

  The invention according to claim 5 further includes a third decorative layer that is laminated on the third region of the surface of the support opposite to the light source and has a total light transmittance of 4% or more. It is a lamination sheet of Claim 1 or 2 characterized by these.

  The invention according to claim 6 is laminated in at least the first region and the second region among the surfaces closest to the light source among the layers on the light source side of the support, and has a total light transmittance of 20%. The laminated sheet according to any one of claims 1 to 5, further comprising a chromatic light-transmitting colored layer.

Invention of Claim 7 is laminated | stacked on the area | region where the said 2nd reflection layer is not laminated | stacked among the surface by the side of the light source of the said support body , and a total light transmittance is. The laminated sheet according to claim 2 , further comprising a chromatic colored transparent layer of 20% or more.

In the invention according to claim 8, when the width of the widest portion of the third region is w3 and the width of the narrowest portion of the first region is w1, the following formula (1) holds: It is a lamination sheet in any one of Claims 1 thru | or 7 characterized by these.
w1 / w3 ≧ 0.15 (1)

The invention according to claim 9 is characterized in that when the thickness of the support is d, the relationship with the width w1 of the narrowest portion of the first region is expressed by the following equation (2). A laminated sheet according to any one of claims 1 to 8.
d × w1 ≧ 1.00 mm ² (2)

In a tenth aspect of the present invention, w2 is the widest portion of the second reflective layer in the second region, and w 'is the width of the narrowest portion in the first region and the second region. The laminated sheet according to any one of claims 2 to 9, wherein the following expression (3) is established when the total light transmittance of the first decorative layer is Tt1.
w ′ / w2 × Tt1 ≧ 0.15 (3)
It is.

Invention according to claim 11, the thickness of the support is d, the width of the narrowest portion in the first region and the second region and w ', of the first decorative layer the total light transmittance when a Tt1, a laminated sheet according to any one of claims 2 to 10, characterized in that holds the expression follows (4).
d × w ′ × Tt1 ≧ 1.00 mm ² (4)

  The invention according to claim 12 is the laminated sheet according to any one of claims 1 to 11, wherein the thickness of the support is in a range from 0.1 mm to 5 mm.

The invention according to claim 13 is a region in which the first reflective layer in the second region corresponds to a region in which the second decorative layer is formed when viewed from the thickness direction of the support. The laminated sheet according to claim 2 , wherein the laminated sheet is formed only on.

The invention according to claim 14 is a region in which the second light shielding layer in the second region corresponds to a region where the second decorative layer is formed when viewed from the thickness direction of the support. The total light transmittance of the region corresponding to the second decorative layer corresponding to the range of 1 mm from the outer periphery to the outside is 60% or more, and the total light transmittance of the region other than the region corresponding to the second decorative layer There is a laminated sheet according to claim 1, wherein the 20% or less.

  A fifteenth aspect of the present invention is the laminated sheet according to any one of the first to fourteenth aspects, wherein an opening having a pattern shape is provided in the first light shielding layer.

  A sixteenth aspect of the present invention is the laminated sheet according to the fifteenth aspect, wherein an opening having a pattern shape is provided in a first region of the first reflective layer.

In the invention according to claim 17, a pattern-shaped opening is provided in the first light shielding layer,
The light-transmitting colored layer has an opening in a region corresponding to a range of 1 mm outward from the outer periphery of the region corresponding to the opening of the first light shielding layer when viewed from the thickness direction of the support. It has it, It is a laminated sheet of Claim 6 .

In the invention according to claim 18, the light-transmitting colored layer is 1 mm outward from the outer periphery of the region corresponding to the region where the second decorative layer is formed as viewed from the thickness direction of the support. The laminated sheet according to claim 6 , wherein an opening is provided in a region corresponding to the second decorative layer corresponding to the range up to.

  The invention according to claim 19 is characterized in that the support is one of polycarbonate, polypropylene, expanded polypropylene, polyethylene terephthalate, polymethyl methacrylate, acrylic, polystyrene, methacryl / styrene copolymer or acrylonitrile / styrene copolymer. The laminated sheet according to any one of claims 1 to 18, which is a resin.

  The invention according to claim 20 is the laminated sheet according to any one of claims 1 to 18, wherein the support is a resin having a haze value of 12% or more.

  In the invention described in claim 21, the support includes a light transmission layer and a light diffusion layer, and the light transmission layer is polycarbonate, polypropylene, expanded polypropylene, polyethylene terephthalate, polymethyl methacrylate, acrylic, polystyrene, methacryl styrene. 19. The resin according to claim 1, wherein the resin is a copolymer or an acrylonitrile / styrene copolymer, and the light diffusion layer is a resin having a haze value of 12% or more. It is a laminated sheet.

  Invention of Claim 22 is a lamination sheet in any one of Claims 1 thru | or 21 whose reflectance of the light of 380-780 nm in the said 1st reflection layer is 60% or more. .

  The invention according to claim 23 is the laminated sheet according to any one of claims 1 to 22, wherein the total light transmittance of the first light shielding layer is 20% or less.

  The invention according to claim 24 is the laminated sheet according to any one of claims 1 to 23, wherein the total light transmittance of the first decorative layer is 20% or more and 80% or less. .

  The invention according to claim 25 is the laminated sheet according to any one of claims 1 to 24, wherein the total light transmittance of the second decorative layer is 20% or less.

  The invention according to claim 26 is the laminated sheet according to any one of claims 1 to 25, wherein a reflectance of light of 380 to 780 nm in the second reflective layer is 60% or more. .

  The invention according to claim 27 is characterized in that the total light transmittance of the second light shielding layer in the third region is 20% or less, and the laminated sheet according to any one of claims 1 to 26 It is.

  The invention according to claim 28 is an information display panel including at least a light source and the laminated sheet according to any one of claims 1 to 27.

  A twenty-ninth aspect of the present invention is the information display panel according to the twenty-eighth aspect, wherein the light source is a surface light source including an edge light type light source and a light guide plate.

  The invention according to claim 30 is the information display panel according to claim 28, wherein the light source is an LED light source.

  A thirty-first aspect of the invention is an information display device including the information display panel according to any of the twenty-eighth to thirty-third aspects.

  In the present invention, the light emitted from the light source is diffusely reflected by the reflective layer, and is visually recognized by the observer as indirect light from the first region, which is the outer periphery of the character / picture, etc. effective. Moreover, since the light emitted from the light source passes through the light-transmitting colored layer and is visually recognized as indirect light, it is possible to express characters and designs beautifully by changing the color between when the light source is lit and when it is not lit. effective.

It is sectional drawing of the lamination sheet which concerns on the 1st Embodiment of this invention. It is sectional drawing of the lamination sheet which concerns on the 2nd Embodiment of this invention.

  Exemplary embodiments of an information display panel according to the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a cross-sectional view of a laminated sheet 4 for an information display panel 5 according to a first embodiment of the present invention, taken along a plane perpendicular to the sheet extending direction. (A) shows each layer separated for easy understanding of the order of lamination, and (B) shows a state in which the layers are actually laminated.
As shown in FIG. 1, the laminated sheet 4 includes a first region 1, a second region 2, and a third region that are adjacent to the first region 1 and separated from each other, as viewed from the sheet thickness direction. Divided into three.
A design shape such as a pattern is configured by the shapes of the first to third regions on the extending surface of the laminated sheet 4.
Note that other regions apart from the second and third regions may be further provided. In that case, the first region is disposed adjacent to the further provided region.
In FIG. 1, an observer 7 views from one surface side of a light-transmissive support 8, and the light source 6 is installed on the other surface side of the support 8.

A first reflective layer 11 and a first light-shielding layer 12 are sequentially laminated in the first region 1 on the surface of the support 8 on the viewer 7 side.
Moreover, the 1st decorating layer 13 and the 2nd decorating layer 14 are laminated | stacked in order on the 2nd area | region 2 among the surfaces by the side of the observer 7 of the support body 8. FIG.
Furthermore, a first diffusion layer 31 is provided in the third region 3 of the surface of the support 8 on the viewer 7 side.

A light transmissive colored layer 24 is provided in the first region 1 of the surface of the support 8 on the light source 6 side.
In addition, a second light-shielding layer 23 and a light-transmitting colored layer 24 are sequentially stacked in the second region 2 on the surface of the support 8 on the light source 6 side.
Further, the third decorative layer 21, the second reflective layer 22, the second light shielding layer 23, and the light-transmitting colored layer 24 are sequentially formed in the third region 3 on the surface of the support 8 on the light source 6 side. Are stacked.

The support 8 can be composed of only a transparent resin, can be composed of only a diffusible resin, or can be composed of a laminate of a transparent resin layer and a diffusible resin layer.
Here, the haze value of the support 8 is desirably 12% or more.
When the haze value of the support 8 is less than 12%, the light that is incident on the support 4 and diffused and reflected and passes through the first region 1 is reduced, so that the luminance of the indirect light is lowered. It is.

  When the support 8 is composed only of a transparent resin, polycarbonate, polypropylene, expanded polypropylene, polyethylene terephthalate, polystyrene, methacryl / styrene copolymer, acrylonitrile / styrene copolymer, polymethyl methacrylate or acrylic may be used. it can. The thickness of the support 8 at this time is preferably 0.1 mm or more in order to cause a large amount of light diffusely reflected by the first reflective layer 11 to travel to the third region 3, and is limited in space within the information display device casing. Is preferably 5 mm or less. Further, since the loss of the light amount in the support 8 can be reduced if it is composed only of the transparent resin, it is possible to display characters and designs brighter when the light source 6 is turned on.

  When the support 8 is composed only of a diffusible resin, it is a spherical or amorphous shape, and an organic resin containing at least one of polycarbonate, PS, MS, and acryl containing organic or inorganic light diffusing fine particles. Can be used. The thickness of the support 8 at this time is preferably 0.1 mm or more in order to cause a large amount of light diffusely reflected by the first reflective layer 11 to travel to the third region 3, and is limited in space within the information display device casing. Is preferably 5 mm or less. Further, by constituting only the diffusion resin, a part of the direct incident light from the light source 6 is diffused and reflected by the diffusion resin and exits to the third region 3, so that the amount of indirect light can be increased.

When the support 8 has a laminated structure of a transparent resin layer and a diffusible resin layer, the transparent resin layer includes polycarbonate, polypropylene, expanded polypropylene, polyethylene terephthalate, polystyrene, methacryl / styrene copolymer, acrylonitrile / styrene copolymer. Polymer, polymethylmethacrylate or acrylic, and at least one of polycarbonate, polystyrene, methacrylstyrene copolymer, acrylic containing light diffusing fine particles made of organic or inorganic in a sphere or amorphous shape in the diffusible resin layer Any organic resin containing any of them can be used. The thickness of the support 8 at this time is preferably 0.1 mm or more in order to cause a large amount of light diffusely reflected by the first reflective layer 11 to travel to the third region 3, and is limited in space within the information display device casing. Is preferably 5 mm or less. In addition, since the configuration includes the diffusion resin layer, a part of the direct incident light from the light source 6 is diffused and reflected by the diffusion resin layer and exits to the third region 3, so that the amount of indirect light can be increased.
Here, the diffusible resin layer is desirably a resin having a haze value of 12% or more. When the haze value of the diffusible resin layer is less than 12%, the light that enters the support and diffuses and reflects and passes through the first region 1 is reduced, so that the luminance of indirect light is lowered. Because.

Next, the laminated structure on the viewer 7 side of the support 8 will be described in detail.
The first reflective layer 11 is disposed on the surface of the light transmissive support 8 in the first region 1 on the viewer 7 side.
The first reflective layer 11 has an effect of diffusely reflecting incident light with a predetermined probability.
The first reflective layer 11 can be provided by screen printing. In particular, letterpress printing, flexographic printing, offset printing, gravure printing, ink jet printing, and the like can be used without being limited to screen printing.
Although it is desirable to use white ink for the first reflective layer 11, it is not limited to white ink as long as it has a light reflection effect and a light transmission effect. Although there is no restriction | limiting in thickness, when it is 5 micrometers-30 micrometers, a reflective effect will come out easily.
Moreover, it is desirable that the reflectance of light of 380 to 780 nm in the first reflective layer 11 is 60% or more.
When the reflectance of the first reflective layer 11 is less than 60%, the brightness of the indirect light reflected by the first reflective layer 11 decreases, and at the boundary between the first region 1 and the second region 2 This is because the stereoscopic effect is impaired.

When the light source 6 is turned on, the light reflected by the first reflective layer 11 is visually recognized as indirect light in the third region 3. At this time, the wider the width of the first reflection layer 11 in the first region 1, the higher the luminance because there is more light diffusely reflected toward the third region 3, and the first region 1 and the first region 1 The three-dimensional effect at the boundary of the region 3 is increased.
When a pattern shape is provided in the first region 1 in terms of design, light transmitted through the first reflective layer 11 passes through an opening of the first light shielding layer 12 described later, so that the pattern shape is directly emitted from the observer as light. Visible. At this time, an opening is provided in a portion corresponding to the first light shielding layer 12 of the first reflective layer 11 so that light passing through the opening passes through the opening of the first light shielding layer 12. Also good.

A first light-shielding layer 12 is laminated on the first reflective layer 11 on the surface of the support 8 in the first region 1 on the side of the viewer 7.
The first light shielding layer 12 can be provided by screen printing. In particular, letterpress printing, flexographic printing, offset printing, gravure printing, ink jet printing, and the like can be used without being limited to screen printing. Although it is desirable to use black ink for the first light shielding layer 12, it is not limited to black ink as long as it has a light shielding effect. Although there is no restriction | limiting in thickness, when it is 5 micrometers-30 micrometers, the light-shielding effect will come out easily.
The total light transmittance of the first light shielding layer 12 is desirably in the range of 20% or less.
When the total light transmittance is greater than 20%, the transmitted light of the first reflective layer 11 in the first region 1 cannot be blocked, and the contrast between the first region 1 and the second region 2 decreases. This is because the three-dimensional effect is impaired.
The first light shielding layer 12 shields light from the light source 6 that passes through the first reflective layer 11. Further, if necessary in design, the first light shielding layer 12 can be provided with a pattern-shaped opening. The direct light of the light source 6 that has passed through the first reflective layer 11 passes through the opening of the first light shielding layer 12 so that the pattern shape is visually recognized.

The first decorative layer 13 is disposed on the surface of the support 8 in the second region 2 on the viewer 7 side.
In FIG. 1A, the first decorative layer 13 is displayed on the first reflective layer 11 in order to make it easy to understand the order and type of stacking. In this manner, the support 8 is laminated on the surface on the viewer 7 side.
The first decorative layer 13 can be provided by screen printing. In particular, letterpress printing, flexographic printing, offset printing, gravure printing, ink jet printing, and the like can be used without being limited to screen printing.
Although it is desirable to use gold ink for the first decorative layer 13, it is not limited to gold ink as long as it is semi-transmissive. Although there is no restriction | limiting in thickness, when it is 5 micrometers-30 micrometers, semi-permeable property will come out easily.
The total light transmittance of the first decorative layer 13 is preferably 20% or more and 80% or less.
When the total light transmittance of the 1st decoration layer 13 is less than 20%, the brightness | luminance of transmitted light falls and the 2nd decoration layer 14 cannot be displayed beautifully. This is because if it exceeds 80%, the second light shielding layer 23 cannot be concealed and the appearance is impaired.
Since the first decorative layer 13 is semi-transmissive, the light source 6 side is concealed when the light source 6 is not turned on, and the second region from the observer 7 is the first decorative layer 13 and a second layer which will be described later. It is visually recognized as being composed only of the decorative layer 14. On the other hand, since the direct light of the light source 6 incident from the support 8 is transmitted when the light source 6 is turned on, it is possible to express a beautiful design that is different from that when the light source 6 is not turned on.

The 2nd decoration layer 14 which is design shapes, such as a character, is laminated | stacked on the surface at the side of the observer 7 of the 1st decoration layer 13. As shown in FIG.
The second decorative layer 14 can be provided by screen printing. In particular, letterpress printing, flexographic printing, offset printing, gravure printing, ink jet printing, and the like can be used without being limited to screen printing.
Although it is desirable to use black ink for the 2nd decoration layer 14, if it has a light-shielding effect, it will not be restricted to black ink. Although there is no restriction | limiting in thickness, when it is 5 micrometers-30 micrometers, the light-shielding effect will come out easily.
In addition, the total light transmittance of the second decorative layer 14 is desirably 20% or less.
When the total light transmittance of the 2nd decoration layer 14 is larger than 20%, the transmitted light of the 2nd decoration layer 14 is visually recognized, and the contrast with the part without the 2nd decoration layer 14 falls. This is because the visibility of the second decorative layer 14 is deteriorated.
When the light source 6 is not lit, the second decorative layer 14 is visually recognized as a design shape such as a letter in the second region 2. On the other hand, since the direct light of the light source 6 incident from the first decorative layer 13 is shielded when the light source 6 is turned on, the light emission on the outer periphery of the design shape such as letters is visually recognized, and a beautiful design property different from that when the light source 6 is not turned on. Can be expressed.

Next, the laminated structure on the light source 6 side of the support 8 will be described in detail.
A third decorative layer 21 is disposed on the surface of the support 8 in the third region 3 on the light source 6 side.
The third decorative layer 21 can be provided by screen printing. In particular, letterpress printing, flexographic printing, offset printing, gravure printing, ink jet printing, and the like can be used without being limited to screen printing.
Although it is desirable to make an arbitrary picture using a golden ink for the 3rd decoration layer 21, if it is translucent, it will not be restricted to a golden ink. Although there is no restriction | limiting in thickness, when it is 5 micrometers-30 micrometers, semi-permeable property will come out easily.
The total light transmittance of the third decorative layer 21 is preferably 4% or more and 80% or less.
When the total light transmittance of the third decorative layer 21 is less than 4%, the light of the color depending on the light-transmitting colored layer incident from the light source side is transmitted and the pattern cannot be displayed beautifully. . If it exceeds 80%, the luminance of the transmitted light of the third decorative layer is too high, and the three-dimensional effect is impaired because the indirect light diffused and reflected by the first reflective layer is obstructed. Because there is.
Since the third decorative layer 21 is semi-transmissive, the indirect light that is diffusely reflected by the first reflective layer 11 is reflected to the viewer 7 side, and a part of the incident light is transmitted to be described later. The light is incident on the second reflective layer 22. The light incident on the second reflective layer 22 is reflected and transmitted again through the third decorative layer 21 toward the viewer, so that the brightness of the indirect light visually recognized in the third region 3 is increased. Thereby, the contrast with the first region 1 is increased, and a stereoscopic effect is felt at the boundary between the first region and the third region. Moreover, since the pattern of the 3rd decoration layer is also visually recognized simultaneously, beautiful design property can be expressed.
The third decorative layer 21 may be provided on the viewer 7 side of the support 8.
In this case, the total light transmittance of the third decorative layer 21 is desirably 4% or more.
When the total light transmittance of the third decorative layer 21 is less than 4%, the light of the color depending on the light-transmitting colored layer incident from the light source side is transmitted and the pattern cannot be displayed beautifully. This is because there is a harmful effect.
The light diffusely reflected by the first reflective layer 11 is reflected by the second reflective layer 22, passes through the support 8, and enters the third decorative layer 21. Since the third decorative layer 21 is translucent, it passes through the third decorative layer 21, so that the viewer 7 can visually recognize the indirect light through the pattern of the third decorative layer 21. Also in this case, a stereoscopic effect can be felt at the boundary between the first region and the third region from the contrast with the first region 1.

When the third decorative layer 21 is provided on the light source 6 side of the support 8, the first diffusion layer 31 is disposed on the surface of the support 8 in the third region 3 on the viewer 7 side.
The first diffusion layer 31 can be provided by screen printing. In particular, letterpress printing, flexographic printing, offset printing, gravure printing, ink jet printing, and the like can be used without being limited to screen printing.
Although it is desirable to use a transparent ink for the first diffusion layer 31, it is not limited to the transparent ink as long as it has a light diffusion effect and a light transmission effect. Although there is no restriction | limiting in thickness, when it is 5 micrometers-30 micrometers, a diffusion effect will come out easily.
It is desirable that the first diffusion layer 31 has a haze value of 5% or more and a total light transmittance of 60% or more. In this numerical range, when the haze value of the first diffusion layer 31 is less than 5%, the effect of diffusing and reflecting the incident light to the first diffusion layer 31 to the first region 1 cannot be sufficiently obtained. When the total light transmittance of one diffusion layer 31 is less than 60%, the amount of light incident on the first reflection layer 11 is reduced, so that the brightness of the reflected light to the first region 1 is reduced, resulting in a three-dimensional effect. Is taken into consideration.
The first diffusion layer 31 has an effect of reducing glare due to reflected light on the surface of the support 8 when the third region 3 is observed when the light source 6 is not lit. At the same time, since the light is transmissive, the visual recognition of indirect light in the third region 3 when the light source 6 is turned on is not hindered.
The first diffusion layer 31 is not necessarily provided, and it is not necessary to provide the first diffusion layer 31 unless there is a need for reduction of reflected light on the surface of the support 8 and design.

The second reflective layer 22 is laminated on the surface of the third decorative layer 21 on the light source 6 side.
The second reflective layer 22 has an effect of diffusely reflecting incident light with a predetermined probability.
The second reflective layer 22 can be provided by screen printing. In particular, letterpress printing, flexographic printing, offset printing, gravure printing, ink jet printing, and the like can be used without being limited to screen printing.
Although it is desirable to use white ink for the second reflective layer 22, it is not limited to white ink as long as it has a light reflection effect. Although there is no restriction | limiting in thickness, when it is 5 micrometers-30 micrometers, a reflective effect will come out easily.
Further, it is desirable that the reflectance of the light of 380 to 780 nm in the second reflective layer 22 is 60% or more.
This is because when the reflectance of the second reflective layer 22 is less than 60%, the luminance of the indirect light reflected by the second reflective layer 22 is lowered, and the stereoscopic effect is impaired.
Since the second reflective layer 22 reflects the light diffusely reflected by the first reflective layer 11 and transmitted through the third decorative layer 21 when the light source 6 is turned on, the light is again reflected by the third decorative layer 22. Since it is visible through the layer 21, there is an effect of increasing the luminance of the indirect light in the third region 3. Thereby, the contrast between the first region 1 and the third region 3 is increased, and the stereoscopic effect at the boundary between the first region 1 and the third region 3 is enhanced.
In addition, when the 3rd decorating layer 21 is provided in the surface at the side of the observer 7 of the support body 8, the 2nd reflective layer 22 is arrange | positioned on the support body 8. FIG. At this time, the light diffusely reflected by the first reflective layer 11 is reflected toward the third decorative layer 21, and the light transmitted through the third decorative layer 21 is used as indirect light in the third region 3. Will be visually recognized. Due to the contrast between the indirect light and the first region 1, a stereoscopic effect is felt at the boundary between the first region 1 and the third region 3.

The second light shielding layer 23 is provided on the light source 6 side surface of the second reflective layer 22 in the second region 2 and the third region 3 of the surface of the support 8 on the light source 6 side.
The second light shielding layer 23 can be provided by screen printing. In particular, letterpress printing, flexographic printing, offset printing, gravure printing, ink jet printing, and the like can be used without being limited to screen printing.
Although it is desirable to use black ink for the second light shielding layer 23, it is not limited to black ink as long as a light shielding portion and a light transmission portion can be provided. Although there is no restriction | limiting in thickness, when it is 5 micrometers-30 micrometers, the light-shielding effect will come out easily.
The total light transmittance of the second light shielding layer 23 in the third region 3 is desirably 20% or less. When the total light transmittance of the second light shielding layer 23 is larger than 20%, the incident light of the second light shielding layer 23 cannot be shielded, and the direct light is visually recognized in the second region 2 and the third region 3. For this reason, there is an adverse effect that the visibility of indirect light is reduced and the stereoscopic effect is impaired.
The second light-shielding layer 23 in the second region 2 is transparent only within a range of 1 mm outward from the outer periphery of the region corresponding to the region where the second decorative layer 14 having a design shape such as a character is formed. The other parts are light-shielding.
It is desirable that the total light transmittance of the region having the transparency (the region corresponding to the second decorative layer) is 60% or more, and the total light transmittance of the region having the light shielding property is 20% or less.
When the total light transmittance of the region corresponding to the second decorative layer is less than 60%, the transmitted light on the outer periphery of the second decorative layer is small, the luminance is lowered, and the second decorative layer cannot be displayed beautifully. . When the total light transmittance other than the region corresponding to the second decorative layer exceeds 20%, the luminance of the entire portion other than the second decorative layer 14 in the second region 2 increases, and the second decorative layer 14 cannot be displayed beautifully.
When the light source 6 is turned on, the light that has passed through the transparent portion passes through the support 8 and the first decorative layer 13 and is visually recognized at the outer peripheral portion of the second decorative layer 14. On the other hand, since light other than the outer peripheral portion of the second decorative layer 14 in the second region is shielded, the design shape such as characters of the second decorative layer 14 is emphasized, and a beautiful display can be achieved. .
The second light shielding layer 23 in the third region 3 has an effect of making the indirect light easy to visually recognize in order to shield the direct light of the light source 6 and enhancing the stereoscopic effect at the boundary between the first region and the third region. .

A light-transmitting colored layer 24 is provided in a region on the light source 6 side of the support 8 in the first region 1 and a region on the light source 6 side of the second light shielding layer 23 in the second region 2. In particular, the present invention is not limited to only the first region 1 and the second region 2, and may be provided also in the region of the third region 3 on the light source 6 side of the second light shielding layer 23.
The light transmissive colored layer 24 can be provided by screen printing. In particular, letterpress printing, flexographic printing, offset printing, gravure printing, ink jet printing, and the like can be used without being limited to screen printing.
Although it is desirable to use chromatic ink for the light-transmitting colored layer 24, the present invention is not limited to this as long as a light-transmitting chromatic color layer can be provided.
Further, the light transmissive colored layer 24 preferably has a total light transmittance of 20% or more. When the total light transmittance of the light-transmitting colored layer 24 is less than 20%, the luminance of the indirect light that is incident on and reflected from the first reflective layer 11 and is visually recognized in the third region is lowered, resulting in a stereoscopic effect. This is because there is a harmful effect of being damaged.
When the light source 6 is turned on, the light transmitted through the light transmissive colored layer 24 is diffusely reflected by the first reflective layer 11 and visually recognized in the third region 3. Depends on color. Further, the direct light visually recognized in the second region 2 also passes through the light-transmitting colored layer 24, and therefore depends on the color of the light-transmitting colored layer 24. By making the light-transmitting colored layer 24 an arbitrary color, characters, designs, etc. are displayed beautifully.
In addition, when the pattern-shaped opening part is provided in the 1st light shielding layer 12, the opening part of the light-transmitting colored layer 24 in the area | region corresponding to the range from the outer periphery of the area | region corresponded to this opening part to 1 mm outside. May be provided. As a result, light that has not been transmitted through the light-transmitting colored layer 24 passes through the opening of the first light-shielding layer 12, so that the pattern shape in the first region 1 is visually recognized in a color that depends on the light-transmitting colored layer 24. It will not be done. The opening of the light-transmitting colored layer 24 is not necessarily provided, but can be provided if necessary in terms of design.
Furthermore, in the area | region (2nd decoration layer equivalent area | region) corresponding to the range from the outer periphery of the area | region equivalent to the area | region in which the 2nd decoration layer 14 is formed to the outside to 1 mm, it is a light transmissive colored layer. You may provide 24 openings. Thereby, the design shape such as characters visually recognized in the second region 2 is not visually recognized in a color depending on the light-transmitting colored layer 24. This opening is not necessarily provided, but can be provided if necessary in terms of design.
The light transmissive colored layer 24 may be provided after the second reflective layer 22 is disposed, and the second light shielding layer 23 may be provided from above the light transmissive colored layer 24. Even if it is this structure, since the light which permeate | transmits the light transmissive colored layer 24 and penetrate | invades into the 1st area | region 1 and the 2nd area | region 2 does not change, the function of the sheet | seat 4 does not change.

Light from the light source 6 enters the light-transmitting colored layer 24 from the incident surface of the sheet 4. The light transmitted through the light-transmitting colored layer 24 is diffusely reflected by the first reflective layer 11 in the first region 1 and passes through the third region 3.
Here, when the 3rd decoration layer 21 is arrange | positioned at the light source 6 side of the support body 8, it permeate | transmitted the support body 8 from the 1st reflection layer 11, and entered into the 3rd decoration layer 21 Part of the light is reflected toward the observer 7 by the third decorative layer 21, and transmitted light out of the light incident on the third decorative layer 21 is incident on the second reflective layer 22. . The light incident on the second reflective layer 22 is reflected and transmitted again through the third decorative layer 21 toward the viewer, so that the brightness of the indirect light visually recognized in the third region 3 is increased. Thereby, the contrast with the first region 1 is increased, and a stereoscopic effect is felt at the boundary between the first region and the third region. Note that the indirect light here is transmitted through the light-transmitting colored layer 24, so that it is visually recognized as a chromatic color depending on the light-transmitting colored layer 24.
On the other hand, when the third decorative layer 21 is provided on the viewer 7 side of the support 8, the light diffusely reflected by the first reflective layer 11 is reflected by the second reflective layer 22, and the support 8. And enters the third decorative layer 21. Since the third decorative layer 21 is translucent, it passes through the third decorative layer 21, so that the viewer 7 can visually recognize the indirect light through the pattern of the third decorative layer 21. Also in this case, a stereoscopic effect can be felt at the boundary between the first region and the third region from the contrast with the first region 1.
In the first region 1, the direct light of the light source 6 that has passed through the opening of the first light shielding layer 12 is visually recognized as a pattern shape. At this time, if an opening is provided in the opening corresponding to the opening of the first light-shielding layer 12 and the periphery thereof in the light-transmitting colored layer 24, the light-transmitting colored layer 24 is visually recognized in a color that does not depend on the third. The design can be improved from the difference in color from the indirect light in region 3.
Further, in the second region 2, the direct light that has passed through the transmissive portion of the second light-shielding layer 23 passes through the first support 8 and the first decorative layer 13, and the second shape having a design shape such as a character. Design shapes such as letters are visually recognized in order to pass through the periphery of the decorative layer 14. At this time, if the light-transmitting colored layer 24 in the second region 2 is an opening, it is visually recognized in a color that does not depend on the light-transmitting colored layer 24, and the design property is based on the color difference from the indirect light in the third region. Can be increased.

FIG. 2 is a cross-sectional view of the laminated sheet 4 for the information display panel 5 according to the second embodiment of the present invention, taken along a plane perpendicular to the sheet extending direction. (A) shows each layer separated for easy understanding of the order of lamination, and (B) shows a state in which the layers are actually laminated.
As shown in FIG. 2, the laminated sheet 4 includes a first region 1, a second region 2, and a third region that are adjacent to the first region 1 and separated from each other as viewed from the sheet thickness direction. Divided into three.
A design shape such as a pattern is configured by the shapes of the first to third regions on the extending surface of the laminated sheet 4.
Note that other regions apart from the second and third regions may be further provided. In that case, the first region is disposed adjacent to the further provided region.
In FIG. 2, the observer 7 views from one surface side of the light-transmissive support 8, and the light source 6 is installed on the other surface side of the support 8.

A first reflective layer 11 and a first light-shielding layer 12 are sequentially laminated in the first region 1 on the surface of the support 8 on the viewer 7 side.
Moreover, the 1st reflective layer 11, the 1st decorating layer 13, and the 2nd decorating layer 14 are laminated | stacked in order on the 2nd area | region 2 among the surfaces by the side of the observer 7 of the support body 8. FIG.
Furthermore, a first diffusion layer 31 is provided in the third region 3 of the surface of the support 8 on the viewer 7 side.

A light transmissive colored layer 24 is provided in the first region 1 of the surface of the support 8 on the light source 6 side.
A second reflective layer 22, a second light shielding layer 23, and a light transmissive colored layer 24 are sequentially laminated in the second region 2 on the surface of the support 8 on the light source 6 side.
Further, the third decorative layer 21, the second reflective layer 22, the second light shielding layer 23, and the light-transmitting colored layer 24 are sequentially formed in the third region 3 on the surface of the support 8 on the light source 6 side. Are stacked.

  The structure, material, production method, and effect of the support 8 are the same as those in the first embodiment.

Next, the laminated structure on the viewer 7 side of the support 8 will be described in detail.
On the surface of the support 8 on the viewer 7 side, the first reflective layer 11 is disposed at a position corresponding to the first region and a second decorative layer 14 described later.
The material and production method of the first reflective layer 11 are the same as in the case of the first embodiment.
In the first region 1, when the light source 6 is turned on, the light reflected by the first reflective layer 11 is visually recognized as indirect light in the third region 3. At this time, the wider the width of the first reflection layer 11 in the first region 1, the higher the luminance because there is more light diffusely reflected toward the third region 3, and the first region 1 and the first region 1 The three-dimensional effect at the boundary of the region 3 is increased.
When a pattern shape is provided in the first region 1 in terms of design, light transmitted through the first reflective layer 11 passes through an opening of the first light shielding layer 12 described later, so that the pattern shape is directly emitted from the observer as light. Visible. At this time, an opening is provided in a portion corresponding to the first light shielding layer 12 of the first reflective layer 11 so that light passing through the opening passes through the opening of the first light shielding layer 12. Also good.
In the second region 2, when the light source 6 is turned on, the light reflected by the first reflective layer 11 passes through the support 8 and enters the second reflective layer 22 where it is reflected and supported. The light passes through the body 8 and the first decorative layer 13 and is visually recognized by the observer 7 as indirect light.

A first light-shielding layer 12 is laminated on the first reflective layer 11 on the surface of the support 8 in the first region 1 on the side of the viewer 7.
The configuration, material, production method, and effects of the first light shielding layer 12 are the same as those in the first embodiment.

Of the surface of the support 8 in the second region 2 on the side of the viewer 7, the region where the first reflective layer is not laminated, and the surface of the first reflective layer 11 in the second region 2 on the viewer 7 side. The first decorative layer 13 is disposed on the surface.
The configuration, material, and creation method of the first decorative layer 13 are the same as in the case of the first embodiment.
Since the first decorative layer 13 is semi-transmissive, the light source 6 side is concealed when the light source 6 is not turned on, and the second region from the observer 7 is the first decorative layer 13 and a second layer which will be described later. It is visually recognized as being composed only of the decorative layer 14. On the other hand, when the light source 6 is turned on, the indirect light that is reflected by the second reflective layer 22 and passes through the support 8 is transmitted, so that it is possible to express a beautiful design that is different from that when the light source 6 is not turned on.

The 2nd decoration layer 14 which is design shapes, such as a character, is laminated | stacked on the surface at the side of the observer 7 of the 1st decoration layer 13. As shown in FIG.
The configuration, material, and creation method of the second decorative layer 14 are the same as in the case of the first embodiment.
When the light source 6 is not lit, the second decorative layer 14 is visually recognized as a design shape such as a letter in the second region 2. On the other hand, since the indirect light incident from the first decorative layer 13 is shielded when the light source 6 is turned on, the light emission on the outer periphery of the design shape such as letters is visually recognized, and a beautiful design property different from that when the light source 6 is not turned on is expressed. Can do.

Next, the laminated structure on the light source 6 side of the support 8 will be described in detail.
A third decorative layer 21 is disposed on the surface of the support 8 in the third region 3 on the light source 6 side.
The configuration, material, creation method, and effects of the third decorative layer 21 are the same as in the case of the first embodiment.

When the third decorative layer 21 is provided on the light source 6 side of the support 8, the first diffusion layer 31 is disposed on the surface of the support 8 in the third region 3 on the viewer 7 side.
The configuration, material, production method, and effects of the first diffusion layer 31 are the same as those in the first embodiment.

Of the surface of the third decorative layer 21 on the light source 6 side and the surface of the support 8 on the light source 6 side, this corresponds to a region where the second decorative layer 14 in the second region 2 is not laminated. A second reflective layer 22 is provided in the portion.
The configuration, material, and production method of the second reflective layer 22 are the same as those in the first embodiment.
In the second region 2, when the light source 6 is turned on, the light reflected by the first reflective layer 11 in the first region 1 and the second region 2 is transmitted through the support 8 and the second reflective layer. 22, is reflected there, passes through the support 8 and the first decorative layer 13, and is visually recognized as indirect light by the observer 7.
In the third region 3, the second reflective layer 22 reflects the light diffusely reflected by the first reflective layer 11 and transmitted through the third decorative layer 21 when the light source 6 is turned on. Since the light passes through the third decorative layer 21 and is visually recognized again, there is an effect of increasing the luminance of the indirect light in the third region 3. Thereby, the contrast between the first region 1 and the third region 3 is increased, and the stereoscopic effect at the boundary between the first region 1 and the third region 3 is enhanced.
In addition, when the 3rd decorating layer 21 is provided in the surface at the side of the observer 7 of the support body 8, the 2nd reflective layer 22 in the 3rd area | region 3 is arrange | positioned on the support body 8. FIG. At this time, the light diffusely reflected by the first reflective layer 11 is reflected toward the third decorative layer 21, and the light transmitted through the third decorative layer 21 is used as indirect light in the third region 3. Will be visually recognized. Due to the contrast between the indirect light and the first region 1, a stereoscopic effect is felt at the boundary between the first region 1 and the third region 3.

A second light shielding layer 23 is provided on the surface of the second reflective layer 22 on the light source 6 side.
The second light shielding layer 23 can be provided by screen printing. In particular, letterpress printing, flexographic printing, offset printing, gravure printing, ink jet printing, and the like can be used without being limited to screen printing.
Although it is desirable to use black ink for the second light shielding layer 23, it is not limited to black ink as long as a light shielding portion and a light transmission portion can be provided. Although there is no restriction | limiting in thickness, when it is 5 micrometers-30 micrometers, the light-shielding effect will come out easily.
The total light transmittance of the second light shielding layer 23 is desirably 20% or less. When the total light transmittance of the second light shielding layer 23 is larger than 20%, the incident light of the second light shielding layer 23 cannot be shielded, and the direct light is visually recognized in the second region 2 and the third region 3. For this reason, there is an adverse effect that the visibility of indirect light is reduced and the stereoscopic effect is impaired.
When the light source 6 is turned on in the second region 2, the indirect light reflected by the second reflecting layer 22 is blocked by the second light shielding layer 23 because the second light shielding layer 23 shields the direct light from the light source 6. There exists an effect which makes it easy to visually recognize in the outer peripheral part of the 2nd decorating layer 14 after permeate | transmitting the 1st decorating layer 13. FIG. On the other hand, since indirect light other than the outer peripheral portion of the second decorative layer 14 in the second region is shielded, the design shape such as letters of the second decorative layer 14 is emphasized and a beautiful display can be achieved. it can.
The second light shielding layer 23 in the third region 3 has an effect of making the indirect light easy to visually recognize in order to shield the direct light of the light source 6 and enhancing the stereoscopic effect at the boundary between the first region and the third region. .

A light-transmitting colored layer 24 is provided in a region where the second reflective layer 11 is not laminated on the surface of the support 8 on the light source 6 side. In particular, it is not limited to the area where the second reflective layer 11 is not laminated, and it may be provided also in the area of the second light shielding layer 23 on the light source 6 side.
The configuration, material, production method, and effects of the light transmissive colored layer 24 are the same as in the case of the first embodiment.

Light from the light source 6 enters the light-transmitting colored layer 24 from the incident surface of the sheet 4. The light transmitted through the light-transmitting colored layer 24 is diffusely reflected by the first reflective layer 11 and passes through the second region 2 and the third region 3.
Here, when the third decorative layer 21 is disposed on the light source 6 side of the support 8, the diffuse reflected light of the first reflective layer 11 is transmitted through the support 8 in the first region 1. A part of the light incident on the third decorative layer 21 is reflected toward the observer 7 by the third decorative layer 21 and transmitted through the light incident on the third decorative layer 21. Things are incident on the second reflective layer 22. The light incident on the second reflective layer 22 is reflected and transmitted again through the third decorative layer 21 toward the viewer, so that the brightness of the indirect light visually recognized in the third region 3 is increased. Thereby, the contrast with the first region 1 is increased, and a stereoscopic effect is felt at the boundary between the first region and the third region. Note that the indirect light here is transmitted through the light-transmitting colored layer 24, so that it is visually recognized as a chromatic color depending on the light-transmitting colored layer 24.
On the other hand, when the third decorative layer 21 is provided on the viewer 7 side of the support 8, the light diffusely reflected by the first reflective layer 11 in the first region 1 is reflected by the second reflective layer 22. The light is reflected, passes through the support 8, and enters the third decorative layer 21. Since the third decorative layer 21 is translucent, it passes through the third decorative layer 21, so that the viewer 7 can visually recognize the indirect light through the pattern of the third decorative layer 21. Also in this case, a stereoscopic effect can be felt at the boundary between the first region and the third region from the contrast with the first region 1.
In the first region 1, the direct light of the light source 6 that has passed through the opening of the first light shielding layer 12 is visually recognized as a pattern shape. At this time, if an opening is provided in the opening corresponding to the opening of the first light-shielding layer 12 and the periphery thereof in the light-transmitting colored layer 24, the light-transmitting colored layer 24 is visually recognized in a color that does not depend on the third. The design can be improved from the difference in color from the indirect light in region 3.
Furthermore, in the second region 2, the diffuse reflected light of the first reflective layer 11 in the first region 1 and the second region 2 is reflected by the second reflective layer 22 in the second region 2, and indirect light In order to pass through the first support 8 and the first decorative layer 13 and pass through the periphery of the second decorative layer 14 having a design shape such as a character, a three-dimensional design shape such as a character is visually recognized. At this time, if the light-transmitting colored layer 24 in the second region 2 is an opening, it is visually recognized in a color that does not depend on the light-transmitting colored layer 24, and the design property is based on the color difference from the indirect light in the third region. Can be increased.

  The thickness of the support 8 is preferably in the range of 0.10 to 5 mm so as not to be restricted by the spatial design in the information display device housing.

The information display panel 5 according to the present invention includes at least the laminated sheet 4 and the light source 6 described above.
As the light source 6, for example, a surface light source or an LED light source including an edge light type light source and a light guide plate is used.

  Examples of the transportation apparatus according to the present invention include automobiles and airplanes. The transport device includes at least the information display panel 5 described above. For example, the transport device is used for a display panel of a speed measuring instrument in a form in which a resin cover is provided on the viewer 7 side of the information display panel 5. The structure of the transportation equipment is generally used.

A first embodiment of the present invention will be specifically described along the configuration of FIG.
On the surface of the polycarbonate 7 having a thickness d as the support 8 on the side of the viewer 7, the first reflective layer 11 of white ink is arranged in the first region 1 by screen printing, and the first light shielding layer 12 of black ink. Are stacked in the first region 1, the first light shielding layer 12 is provided with a pattern-shaped opening, the first decorative layer 13 of gold ink is disposed in the second region 2, and the black ink is used. A second decorative layer 14 having a design shape such as letters is laminated in the second region 2, and a first diffusion layer 31 of transparent ink is provided in the third region 3.
A third decorative layer 21 of gold ink is provided in the third region 3 on the surface of the support 8 on the light source 6 side, and a second reflective layer 22 of white ink is provided in the third region 3. After the second reflective layer 22 is provided, the second light-shielding layer 23 of black ink is disposed in the second region 2 and the third region 3, and the second light-shielding layer Only the portion corresponding to the second decorative layer 14 of 23 and the outer peripheral portion of 1 mm has light transmittance, and the light-transmitting colored layer 24 of blue ink has the first region 1, the second region 2, and the third region. The portion corresponding to the opening portion of the first light-shielding layer 12 and the outer peripheral portion of 1 mm of the light-transmitting colored layer 24 is an opening portion.
Then, an LED light source of 1,000 cd / m 2 serving as the light source 6 was placed on the other surface side of the information display panel 5 of the present invention, and an observer 7 on one surface side looked at the time of non-lighting and lighting.

  Calculation of w1 / w3 when the thickness d of the support 8 is 1 mm in the configuration of FIG. 1 and the width w1 of the narrowest portion of the first region 1 and the width w3 of the widest portion of the third region are changed. Table 1 shows the results, the color when the light source 6 is not lit, the color in the third area 3 when lit, and the stereoscopic effect at the boundary between the first area 1 and the third area 3.

  In addition, a three-dimensional effect is sensory evaluation by visual observation, and it is set as a pass by evaluation being 3 or more.

  In Table 3 from the first region, blue is visually recognized when the light source 6 is turned on under each condition, and is different from the gold color when the light source is not lit. Therefore, the color change can be expressed by turning on and off the light source 6. I understand that. It can also be confirmed that w1 / w3 needs to be 0.15 or more in order to obtain a sufficient stereoscopic effect in the third region 3. If w1 / w3 is less than 0.15, the first region 1 is narrow, so that it is presumed that the luminance of light that is diffusely reflected by the first reflective layer 11 and goes to the third region 3 is lowered.

  In Table 2, it is assumed that w1 / w3 is 0.90 in the width w1 of the narrowest portion of the first region 1 and the width w3 of the widest portion of the third region in the configuration of FIG. The calculation result of d × w1 when the thicknesses d and w1 of 8 are changed, the color when the light source 6 is not lit, the color in the third region 3 when lit, and the first region 1 and the third region 3 Table 2 shows the three-dimensional effect of the boundary portion. Note that d is in the range of 0.10 mm to 5.00 mm so as not to be restricted by the spatial design in the information display device housing.

  From Table 2, in the third area 3, blue is visually recognized when the light source 6 is turned on under each condition, and is different from the gold color when not turned on. Therefore, the color change can be expressed by turning on and off the light source 6. I understand that. Further, it can be confirmed that d × w1 needs to be 1.00 or more in order to obtain a sufficient stereoscopic effect in the third region 3. When d × w1 is less than 1.00, the range in which the light diffusely reflected by the first reflective layer 11 spreads on the support 8 in the first region 1 is narrow, and the luminance of the light toward the third region 3 is low. It is presumed that it will end up.

A second embodiment of the present invention will be specifically described along the configuration of FIG.
A first reflective layer 11 of white ink is arranged on the surface of the polycarbonate 7 having a thickness d as the support 8 on the viewer 7 side by screen printing in the first region 1 and the second region 2, and the black ink first. 1 light-shielding layer 12 is laminated on the first region 1, the first light-shielding layer 12 is provided with a pattern-shaped opening, and the first decorative layer 13 of gold ink is formed on the first reflective layer 11. A second decorative layer 14 that is provided in the second region 2 after the placement and is black and has a design shape such as a letter is laminated on the second region 2, and the first reflective layer 11 in the second region 2 is The first diffusion layer 31 of transparent ink is provided in the third region 3 at a position corresponding to the second decorative layer 14.
The third decorative layer 21 of gold ink is provided in the third region 3 on the surface of the support 8 on the light source 6 side, and the second reflective layer 22 of white ink is disposed on the third decorative layer 21. Later, the second region 2 is not laminated with the portion corresponding to the second decorative layer 12 and the third region 3, and the second light shielding layer 23 of black ink is provided on the second reflective layer 22. The light-transmitting colored layer 24 of blue ink is disposed in the first region 1, the second region 2, and the third region 3, and the opening of the first light-shielding layer 12 of the light-transmitting colored layer 24 and its outer periphery A portion corresponding to the 1 mm portion is an opening.
Then, an LED light source of 1,000 cd / m 2 serving as the light source 6 was placed on the other surface side of the information display panel 5 of the present invention, and an observer 7 on one surface side looked at the time of non-lighting and lighting.

  Calculation of w1 / w3 when the thickness d of the support 8 is 1 mm in the configuration of FIG. 2 and the width w1 of the narrowest portion of the first region 1 and the width w3 of the widest portion of the third region are changed. Table 3 shows the results, the color when the light source 6 is not lit, the color in the third area 3 when lit, and the stereoscopic effect at the boundary between the first area 1 and the third area 3.

  In addition, a three-dimensional effect is sensory evaluation by visual observation, and it is set as a pass by evaluation being 3 or more.

  In Table 3 to 3rd region 3, when the light source 6 is turned on under the various conditions, blue is visually recognized, which is different from the gold color when the light source 6 is not turned on. I understand that. It can also be confirmed that w1 / w3 needs to be 0.15 or more in order to obtain a sufficient stereoscopic effect in the third region 3. If w1 / w3 is less than 0.15, the first region 1 is narrow, so that it is presumed that the luminance of light that is diffusely reflected by the first reflective layer 11 and goes to the third region 3 is lowered.

  In Table 4, it is assumed that w1 / w3 is 0.90 in the width w1 of the narrowest portion of the first region 1 and the width w3 of the widest portion of the third region in the configuration of FIG. The calculation result of d × w1 when the thicknesses d and w1 of 8 are changed, the color when the light source 6 is not lit, the color in the third region 3 when lit, and the first region 1 and the third region 3 The three-dimensional effect of the boundary part of is shown. Note that d is in the range of 0.10 mm to 5.00 mm so as not to be restricted by the spatial design in the information display device housing.

  In Table 3 in the third region 3, since the blue color is visually recognized when the light source 6 is turned on under each condition and is different from the gold color when the light source 6 is not lit, the color change can be expressed by turning on and off the light source 6. I understand that. Further, it can be confirmed that d × w1 needs to be 1.00 or more in order to obtain a sufficient stereoscopic effect in the third region 3. When d × w1 is less than 1.00, the range in which the light diffusely reflected by the first reflective layer 11 spreads on the support 8 in the first region 1 is narrow, and the luminance of the light toward the third region 3 is low. It is presumed that it will end up.

  In the configuration of FIG. 2, the thickness d of the support 8 is 1 mm, the width w ′ of the narrowest portion in the first region 1 and the second region 2, the width w2 of the widest portion of the second region 2, and the first The calculation result of w ′ / w2 × Tt1 when the total light transmittance Tt1 of one decorative layer 13 is changed, the color when the light source 6 is not lit, and the second decoration in the second region 2 when lit Table 5 shows the color around the layer 14 and the stereoscopic effect of the second decorative layer 14.

  From Table 5, in the periphery of the second decorative layer 14 in the second region 2, blue is visually recognized when the light source 6 is turned on under each condition, and is different from the gold color when not turned on. It can be seen that the color change can be expressed by non-lighting. It can also be confirmed that w ′ / w2 × Tt1 needs to be 0.15 or more in order to obtain a sufficient stereoscopic effect of the second decorative layer 14. If w ′ / w2 × Tt1 is less than 0.15, the first reflective layer 11 is narrow or the total light transmittance of the first decorative layer 13 is too low, so the peripheral portion of the second decorative layer 14 This is presumably because the brightness of the indirect light visually recognized at 1 is lowered.

  In the configuration of FIG. 2 in Table 6, the width of the narrowest portion in the first region 1 and the second region 2 is w ′, the width of the widest portion of the second region 2 is w2, and the first decorative layer Assuming that the total light transmittance of 13 is Tt1 and that w ′ / w2 × Tt1 is 0.90, the calculation result of d × w1 × Tt1 when the thicknesses d, w1, and Tt1 of the support 8 are changed. Table 6 shows the color when the light source 6 is not lit, the color around the second decorative layer 14 in the second region 2 when lit, and the stereoscopic effect of the second decorative layer 14. Note that d is in the range of 0.10 mm to 5.00 mm so as not to be restricted by the spatial design in the information display device housing.

  From Table 6, in the peripheral part of the second decorative layer 14 in the second region 2, blue is visually recognized when the light source 6 is turned on under each condition, and is different from the gold color when not turned on. It can be seen that the color change can be expressed by non-lighting. Further, it can be confirmed that d × w1 × Tt1 needs to be 1.00 or more in order to obtain a sufficient stereoscopic effect of the second decorative layer 14. If d × w1 × Tt1 is less than 1.00, the range in which the light diffusely reflected by the first reflective layer 11 spreads on the support 8 in the second region 2 is narrow, or the total light rays of the first decorative layer 13 It is presumed that the luminance of the indirect light visually recognized at the peripheral portion of the second decorative layer 14 is lowered because the transmittance is too low.

  In the information display panel 5 using the sheet 4 of the embodiment, by turning on the light source 6, the second decorative layer 14 in the third region 3 or the second region 2 corresponding to characters, pictures, etc. In addition to creating a three-dimensional effect, it was possible to express characters and pictures beautifully by adding color changes between when the light source 6 was lit and when it was not lit.

  The information display panels produced in Examples 1 and 2 were used in a transportation device provided with a light source on the back and a resin cover on the front observer side.

DESCRIPTION OF SYMBOLS 1 1st area | region 2 2nd area | region 3 3rd area | region 4 Sheet | seat 5 Information display panel 6 Light source 7 Viewer 8 Support body 11 1st reflection layer 12 1st light shielding layer 13 1st decoration layer 14 1st 2 decorative layer 21 3rd decorative layer 22 2nd reflective layer 23 2nd light shielding layer 24 Light transmissive colored layer 31 1st diffused layer

Claims (31)

A laminated sheet for an information display panel that displays information by being illuminated by a light source installed on the back,
A support having optical transparency;
Of the surface opposite to the light source of the support, a first reflective layer laminated in a first region;
A first light-shielding layer laminated on a surface opposite to the light source of the first reflective layer;
Of the surface opposite to the light source of the support, a first decorative layer stacked in a second region adjacent to the first region when viewed from the thickness direction of the support;
A second decorative layer that is laminated on the surface opposite to the light source of the first decorative layer and in which a pattern that forms a design shape including characters is formed;
Of the surface on the light source side of the support, the second reflection is laminated in a third region adjacent to the first region and separated from the second region when viewed from the thickness direction of the support. Layers,
A second light-shielding layer laminated on a light source side surface of the second reflective layer and a second region of the light source side surface of the support;
Of the second light shielding layer, a region corresponding to a region where the second decorative layer is laminated as viewed from the thickness direction of the support has a low light shielding property.
A laminated sheet characterized by that. A laminated sheet for an information display panel that displays information by being illuminated by a light source installed on the back,
A support having optical transparency;
Of the surface opposite to the light source of the support, a first reflective layer laminated on a first region and a second region adjacent to the first region;
A first light-shielding layer laminated in a first region out of a surface opposite to the light source of the first reflective layer;
Of the surface opposite to the light source of the first reflective layer, the first decorative layer laminated in the second region;
A second decorative layer that is laminated on the surface opposite to the light source of the first decorative layer and in which a pattern that forms a design shape including characters is formed;
The light source side surface of the support is stacked in a third region adjacent to the first region and separated from the second region when viewed from the thickness direction of the support, A second reflective layer laminated in a region corresponding to a region where the second decorative layer is not formed in the second region as viewed from the thickness direction;
A second light shielding layer laminated on a light source side surface of the second reflective layer,
A laminated sheet characterized by that.   It further has a 3rd decoration layer which is arrange | positioned between the said support body and said 2nd reflection layer in said 3rd area | region, and whose total light transmittance is 4% or more and 80% or less. Item 3. The laminated sheet according to Item 1 or 2.   The first diffusion layer having a haze value of 5% or more and a total light transmittance of 60% or more is further laminated on the third region of the surface opposite to the light source of the support. Item 4. The laminated sheet according to Item 3.   The first or second aspect further comprises a third decorative layer laminated on the third region of the surface opposite to the light source of the support and having a total light transmittance of 4% or more. The laminated sheet according to 1.   Of the layers closest to the light source among the layers on the light source side of the support, at least the first region and the second region are laminated, and the light transmittance coloring is a chromatic color with a total light transmittance of 20% or more. The laminated sheet according to any one of claims 1 to 5, further comprising a layer. Of the light source-side surface of the support, said and a second region, the second reflective layer are stacked in an area not laminated, the light transmittance of the total light transmittance of chromatic color at least 20% The laminated sheet according to claim 2 , further comprising a coloring layer. 8. The following expression (1) is established, where w3 is the width of the widest portion of the third region and w1 is the width of the narrowest portion of the first region. The laminated sheet according to any one of the above.
w1 / w3 ≧ 0.15 (1) The relation between the thickness of the support and the width w1 of the narrowest portion of the first region is expressed by the following formula (2), where d is the thickness of the support. The laminated sheet of crab.
d × w1 ≧ 1.00 mm ² (2) The widest part in the second region is w2, the width of the narrowest part in the first region and the second region is w ′, and the total light transmittance of the first decorative layer is Tt1. When it does, the following formula | equation (3) will be materialized, The laminated sheet in any one of the Claims 2 thru | or 9 characterized by the above-mentioned.
w ′ / w2 × Tt1 ≧ 0.15 (3) The thickness of the support is d, when the width of the narrowest portion in the first region and the second region and w ', and the total light transmittance of the first decorative layer and Tt1 the laminated sheet according to any one of claims 2 to 10, characterized in that holds the expression follows (4).
d × w ′ × Tt1 ≧ 1.00 mm ² (4)   The laminated sheet according to any one of claims 1 to 11, wherein a thickness of the support is in a range from 0.1 mm to 5 mm. The first reflective layer in the second region is formed only in a region corresponding to a region where the second decorative layer is formed when viewed from the thickness direction of the support. The laminated sheet according to claim 2 . The second light-shielding layer in the second region is a range from the outer periphery of the region corresponding to the region in which the second decorative layer is formed to the outside as viewed from the thickness direction of the support to 1 mm. The total light transmittance of the region corresponding to the second decorative layer corresponding to the inside is 60% or more, and the total light transmittance of the region other than the region corresponding to the second decorative layer is 20% or less. The laminated sheet according to claim 1 .   The laminated sheet according to any one of claims 1 to 14, wherein an opening having a pattern shape is provided in the first light shielding layer.   The laminated sheet according to claim 15, wherein a pattern-shaped opening is provided in a first region of the first reflective layer. A pattern-shaped opening is provided in the first light shielding layer,
The light-transmitting colored layer has an opening in a region corresponding to a range of 1 mm outward from the outer periphery of the region corresponding to the opening of the first light shielding layer when viewed from the thickness direction of the support. The laminated sheet according to claim 6 , comprising: The light-transmitting colored layer corresponds to a second region corresponding to a range of 1 mm outward from the outer periphery of the region corresponding to the region where the second decorative layer is formed when viewed from the thickness direction of the support. The laminated sheet according to claim 6 , which has an opening in the region corresponding to the decorative layer.   The support is a resin of any one of polycarbonate, polypropylene, expanded polypropylene, polyethylene terephthalate, polymethyl methacrylate, acrylic, polystyrene, methacryl / styrene copolymer or acrylonitrile / styrene copolymer. Item 19. A laminated sheet according to any one of Items 1 to 18.   The laminated sheet according to any one of claims 1 to 18, wherein the support is a resin having a haze value of 12% or more.   The support includes a light transmissive layer and a light diffusing layer. The light transmissive layer includes polycarbonate, polypropylene, expanded polypropylene, polyethylene terephthalate, polymethyl methacrylate, acrylic, polystyrene, methacryl / styrene copolymer or acrylonitrile / styrene copolymer. The laminated sheet according to any one of claims 1 to 18, wherein the laminated sheet is any resin of a polymer, and the light diffusion layer is a resin having a haze value of 12% or more.   The laminated sheet according to any one of claims 1 to 21, wherein a reflectance of light of 380 to 780 nm in the first reflective layer is 60% or more.   The laminated sheet according to any one of claims 1 to 22, wherein the total light transmittance of the first light shielding layer is 20% or less.   24. The laminated sheet according to claim 1, wherein the first decorative layer has a total light transmittance of 20% or more and 80% or less.   The laminated sheet according to any one of claims 1 to 24, wherein the total light transmittance of the second decorative layer is 20% or less.   The laminated sheet according to any one of claims 1 to 25, wherein a reflectance of light of 380 to 780 nm in the second reflective layer is 60% or more.   The laminated sheet according to any one of claims 1 to 26, wherein the total light transmittance of the second light shielding layer in the third region is 20% or less.   An information display panel comprising at least a light source and the laminated sheet according to claim 1.   The information display panel according to claim 28, wherein the light source is a surface light source including an edge light type light source and a light guide plate.   The information display panel according to claim 28, wherein the light source is an LED light source.   An information display device comprising the information display panel according to any one of claims 28 to 30.

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