JPH0624850Y2 - Transparent panel with holographic image - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention uses a holographic image with a high display effect, and it is possible to observe separate images on the front and back, or only from one side. And a panel having a hologram that is transparent to any of these images.

(Problems to be Solved by the Invention) First, in order to impart transparency to a conventional panel having a hologram image using reflected light as a light source, the thickness of the metal reflection layer is set to 30.
It becomes possible by setting it to about 0 angstrom.

However, in this case, when observing the panel from the front and back, 1
Only a real image and a mirror image of a hologram image of a kind are observed, and especially when a left-right asymmetric image such as a character is used for the hologram image, the mirror image impairs the decorative property of the panel.

Further, a panel having different hologram images on the front and back sides can be easily prepared by providing hologram images on both sides of the base material, but naturally it does not have transparency.

(Means for Solving the Problem) The present invention has been made in view of the present situation as described above, and in order to have the above-mentioned two properties, first, in order to prevent the show-through of the hologram image, two images are displayed. This is represented by providing a concealing layer in the middle and arranging the hologram image as halftone dots in order to provide transparency.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings.

The transparent panel having the hologram according to the present invention is the first
As shown in the figure, a large number of fine hologram pixels 10 are formed as halftone dots on one surface of the panel substrate 8 made of transparent plastic, glass or the like.

Explaining the structure of the halftone dots by the fine hologram pixels 10, it is created by a method of transferring the hologram image surface of the other surface to one of the hologram image surfaces.

FIG. 3 is a hologram image surface on one side.

First, a 25 μm PET film having good smoothness is used as the base material (1) in consideration of use in a winding method, and then a release resin layer (2) made of a methyl methacrylate resin is formed on the PET film. Then, a hologram forming layer (3) made of a two-component reaction resin of acrylic polyol / isocyanate is applied by a roll reverse coating method.

Further, embossing is performed while heating and pressing with a stamper having a metal hologram image on the hologram forming layer (3) to record the hologram image.

Next, a metal reflection layer (4) having a thickness of about 600 angstrom is formed on the hologram image by vacuum deposition using aluminum.

Next, FIG. 4 shows a foil in which front and back images are attached.

That is, one side hologram image foil (5) shown in FIG. 3 is prepared for the front side and the back side, and the image concealing property of urethane elastomer / barium sulfate is provided on either one of the metal reflection layers (4). Formed by applying the adhesive layer (6) by a roll reverse coating method, drying, and then laminating two metal reflective layers with a heat roll at 80 ° C. so as to sandwich the image concealing adhesive layer (6). To be done.

The foil from which the substrate (1) 'has been peeled off thereafter is shown in FIG. 5, and the urethane transparent adhesive (7) is coated on the peeling resin layer (2)'.

The sheet-shaped foil thus formed was transferred onto the transparent acrylic plate 8 by heat and pressure using a metallic head provided with a convex portion heated to 130 ° C., and the base material (1) was peeled off to form a sixth. A transparent panel having the hologram image shown is obtained.

In the transparent panel having a hologram image according to the present invention, fine hologram pixels having separate hologram images on the front and back sides are formed as halftone dots on the surface of the transparent substrate 8 as shown in FIG. , B, the hologram pattern 12 viewed from the front side and the back side looks different,
Moreover, the transparency is not lost.

Also on the surface of the transparent substrate. By forming minute hologram pixels with separate hologram images formed on either the front or back side as halftone dots, it becomes possible to observe the hologram image from either side of the front and back of the panel, and it is possible to improve the transparency. It will not be lost.

What has been described above is just an example, using a highly transparent type PET film or the like as the material of the substrate of the panel base material (8), and selecting a resin to be released together with the base material in the release resin layer, Regarding the coating of the peeling resin layer (2) and the hologram forming layer (3), it is possible to use a gravure coat or the like as long as smooth coating is possible, and tin or copper is used for the material of the metal reflection layer, It is also possible to use an ion plating or CVD method as the forming method.

(Effect of the Invention) When the transparent panel having the hologram having the structure of the present invention is observed from the front or the back, it is possible to separately observe the images of the first hologram forming layer and the second hologram forming layer. .

Further, when this panel is observed from a distance, it can be observed as a semitransparent panel without confirming the existence of a fine pattern.

Further, in the panel having the structure described in the present invention, when a three-dimensional hologram image is observed, since the space on the opposite side of the panel is used as the background, the sense of depth is greater than the space on the mirror surface created by the metal reflection layer. It can be expected that the stereoscopic effect of the image can be improved.

[Brief description of drawings]

The drawings show the present invention. FIG. 1 is an explanatory view of a cross section showing a panel having a hologram, FIG. 2 is an explanatory view showing a pattern of a panel having a hologram, and FIG. 3 is a foil of a hologram image on one side. A sectional view, FIG. 4 is a sectional view of a laminated foil, FIG. 5 is a sectional view of a transfer foil, and FIG. 6 is a sectional view of halftone dots transferred onto a transparent acrylic plate. (1) …… Base material (2) …… Release resin layer (3) …… Hologram forming layer (4) …… Metal reflective layer (5) …… One side hologram image foil (6) …… Image concealment adhesive layer (7) …… Transparent adhesive layer (8) …… Transparent acrylic plate (panel substrate) (10) …… Hologram pixel (12) …… Holographic pattern

Claims (5)

[Scope of utility model registration request] 1. In a panel having a reflection type hologram image, fine hologram pixels having separate hologram images formed on the front and back sides are formed as halftone dots on the surface of a transparent substrate. A transparent panel having a hologram image, which is capable of observing a hologram image and does not lose the transparency. 2. A panel having a reflection type hologram image, comprising: a transparent substrate surface; Fine hologram pixels with separate hologram images formed on the front and back sides are formed as halftone dots, which makes it possible to observe the hologram image from either the front or back side of the panel, and the transparency. A transparent panel having a holographic image, wherein the transparent panel does not lose light. 3. A fine hologram pixel provided on the transparent substrate comprises a transparent adhesive layer for adhering to the substrate, a first hologram forming layer, a metal reflection layer, an image concealment adhesion layer, a metal reflection layer, By having the structure in which the second hologram forming layer is laminated in this order, only the first hologram image can be observed from the surface provided with the halftone dots, and only the second hologram image can be observed from the surface on the opposite side. A transparent panel having the hologram image according to item 1. 4. The fine hologram pixel provided on the transparent substrate has a structure in which an image concealing adhesive layer for adhering to the substrate, a metal reflection layer, and a hologram forming layer are laminated in this order. The transparent panel having a hologram image according to item 2, wherein the hologram image can be observed from the surface provided with halftone dots, and the opposite surface has transparency. 5. A fine hologram pixel provided on the transparent substrate has a structure in which a transparent adhesive layer for adhering to the substrate, a metal reflection layer, a hologram forming layer, and an image concealing adhesive layer are laminated in this order. Thus, the surface provided with halftone dots has a see-through property, and the hologram image can be observed only from the opposite surface, and thus the see-through property with a hologram image according to the second item, panel.