JPH0529117B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for decorating advertisements, displays, signboards, etc., and a decorative display using the method.

[Summary of the invention]

The present invention uses a light control film or sheet that selectively scatters only incident light within a predetermined angle range with respect to the film, and transmits incident light at other angles, for decoration of advertisements, displays, signboards, etc. Decoration method and method utilizing the effect that by coating the surface of a substrate such as glass, plastic, metal, paper, etc., the surface of the substrate appears transparent or opaque depending on the viewing angle. This is a decorative display using this method.

[Conventional technology]

Conventional advertisements, displays, and signboards are made by painting or pasting letters, photographs, illustrations, designs, patterns, etc. on a base material such as a steel plate, wood board, plastic board, or paper, or by bending a steel plate, plastic board, etc. They are manufactured using various methods such as molding, press working, vacuum processing, etc., or a combination of these methods.

[Problem that the invention seeks to solve]

Advertisements, displays, and billboards need to attract the human eye for their purpose, and various efforts have been made to date as described above. However, simply implementing conventional methods tends to become monotonous and is no longer always satisfactory. In order to solve this problem, there are cases where the building is made three-dimensional, or lights, electric lights, neon signs, etc. are used, but this results in problems such as large-scale equipment and high costs.

The present invention solves these problems and provides a new decorative method and decorative display that attracts the human eye.

[Means for solving problems]

The decoration method of the present invention is characterized by coating a substrate with a light control film that selectively scatters only incident light within a predetermined angle range with respect to the film, and transmits incident light at other angles. It is a way of decoration.

Further, the decorative display of the present invention is a decorative display in which the light control film is coated on a base body.

The decorative display of the present invention is not particularly limited as long as it is intended to attract, entertain, and interest people, but includes, for example, surfaces of various structures for the purpose of advertising, billboards,
A general term for signboards, posters, displays for exhibition and display purposes, posters, and decorative parts of the surfaces of buildings and vehicles such as walls, pillars, floors, and ceilings, furniture, fixtures, and vanity cases. Defined as a decorative display.

Objects to which the decoration method of the present invention can be applied are not particularly limited, but there are various products that require decoration in addition to the decorative display described above.

The light control film used in the present invention is obtained by curing a resin composition consisting of a plurality of compounds each having one or more polymerizable carbon-carbon double bonds in the molecule, each having a different refractive index, Preferably, the compound having one or more polymerizable carbon-carbon double bonds in its molecules with different refractive indexes is photopolymerizable, and curing of the resin composition is achieved by exposing the composition to ultraviolet rays from a specific direction. This is done by irradiating the

The compound having a polymerizable carbon-carbon double bond used in the method of the present invention is a monomer containing one or more polymerizable groups such as an acryloyl group, a methacryloyl group, a vinyl group, or an allyl group in the molecule. Or oligomer. For example, polyfunctional acrylates such as polyester acrylate, polyol polyacrylate, modified polyol polyacrylate, isocyanuric acid skeleton polyacrylate, melamine acrylate, hydantoin skeleton polyacrylate, polybutadiene acrylate, epoxy acrylate, urethane acrylate, and these acrylates. The corresponding methacrylates, also tetrahydrofurfuryl acrylate, ethyl carbitol acrylate, dicyclobentenyloxyethyl acrylate, phenyl carbitol acrylate, nonyl phenoxyethyl acrylate, 2-hydroxy-3-phenoxypropyl acrylate, ω -Hydroxyhexanoyloxyethyl acrylate, acryloyloxyethyl succinate, acryloyloxyethyl phthalate, tribromophenoxyethyl acrylate, isobornyl acrylate, 2-ethylhexyl acrylate,
lauryl acrylate, 2,2,3,3-tetrafluoropropyl acrylate and methacrylates corresponding to these monofunctional acrylates, and N-vinylpyrrolidone, triallyl isocyanurate, diethylene glycol bisallyl carbonate, diallylidene bentaerythritol, etc. can be given.

The resin composition used in the present invention is a mixture of two or more of these compounds, each having a different refractive index.

That is, the resin composition of the present invention is characterized by the refractive index difference and mutual solubility of the compounds used therein, and when the refractive index difference is large due to a combination with poor compatibility, the degree of light scattering is becomes larger, and the angular range of scattered incident light also becomes wider.

In the present invention, a light control film obtained by curing these resin compositions by various methods is used, and each compound is preferably photopolymerizable. A preferred method is to apply the composition onto a substrate or encapsulate it in a cell, and then irradiate the composition with ultraviolet rays from a specific direction to cure it. By this method, it is possible to create a light control film that selectively scatters incident light at a desired angle.

Examples of the photopolymerization initiator used in this case include benzophenone, benzyl, Michler's ketone, 2-chlorothioxanthone, 2,4-diethylthioxanthone, benzoin ethyl ether, diethoxyacetophenone, benzyl dimethyl ketal, 2-hydroxy-2 -Methylpropiophenone, 1-hydroxycyclohexyl phenyl ketone, and the like.

Ultraviolet rays are irradiated using a mercury lamp or a metal halide lamp, but when a rod-shaped lamp is used, by adjusting the irradiation conditions, the cured product in the form of a film or sheet is produced in the long and short axis directions of the light source. It exhibits anisotropy with respect to the light source, and scatters light at a specific angle only when rotated around the long axis direction of the light source.

The angular dependence of light scattering and transmission of the light control film used in the present invention is determined by the irradiation angle of ultraviolet rays, the irradiation conditions, the difference in refractive index of the resin composition, and the like. The thickness of the film depends on the application and film manufacturing method, and is not particularly limited, but it is used in a range of about 20 μm to about 2000 μm. Further, in the present invention, a plurality of light control films may be used in stacks depending on the purpose in order to control angle dependence and increase decorative effects.

In the present invention, the light control film may be used as a single film by being adhered to a substrate, or by curing the resin composition on the surface of a substrate or between a plurality of substrates and processing it together with the substrate during film formation. Good too. The latter method is suitable when a transparent glass plate or transparent plastic film or sheet is required as a protective layer for a light control film, or when a material having a decorative function is required for the substrate itself.

The decoration method and the specific structure of the decoration display of the present invention will be exemplified.

(1) The angle-dependent light control film used in the present invention is coated on letters, photographs, illustrations, designs, and patterns (hereinafter referred to as letters, etc.), and the letters can only be viewed from a specific angle range. etc. should be visible.

(2) A light control film or sheet is formed so that the transmission of light is angularly dependent only in the text, etc., so that the text, etc. can be distinguished from the background only from a specific angle.

(3) Combining two or more types of light control films with different angular dependencies to form characters, etc. in a mosaic pattern, or to create a decorative effect by laminating them randomly.

There are methods and displays such as these, and these can be used alone or in combination.

In the method and display of the present invention, the shape, structure, or function of the substrate is not necessarily limited, but basically, it can be applied to the surface of a plane or three-dimensional (cubic, cylindrical, or three-dimensional structure of the characters, etc.). The present invention can be practiced by forming or laminating the light control film of the present invention. The substrate used in the present invention can be of a movable type.

By making it movable, even if the human viewpoint remains constant, the angle-dependent surface of the light control film changes its angle relative to the human line of sight, making characters etc. visible or invisible, creating a decorative effect. can be significantly increased.

The method of movement is not limited, but may include movement that changes the angle of the angle-dependent light control film with respect to the human line of sight, such as rotation, periodic movement within a certain angle, up and down, left and right. Alternatively, periodic movement back and forth or a combination thereof can be used.

The light control film used in the present invention can also be formed with characters or the like that have angle dependence of light transmission. Specifically, in the above-mentioned method for producing a light control film, when irradiating the film-forming film with ultraviolet rays, parts other than the letters, etc. are masked, and the ultraviolet rays are irradiated multiple times from different angles. etc. can be used.

In the methods and displays of the present invention, films or sheets of clear glass or clear plastic, or films or sheets of colored glass or colored plastic may be used in conjunction with the light control film.

The plastic is not particularly limited and any transparent plastic or colored plastic can be used. Suitable examples include polymethyl methacrylate resin, polycarbonate resin, polystyrene resin, polyvinyl chloride resin, polyester resin, and polyamide resin.

In addition, in the method and display of the present invention, lighting and images may be used in combination to further enhance the decorative effect.

In addition to the above-mentioned glass and plastic, metal materials, inorganic materials, wood, paper, etc. can be used as the substrate used in the present invention.

〔Effect of the invention〕

The decorative display of the present invention has a great decorative effect because characters, etc. become visible or invisible due to changes in the human visual angle or movement of the display due to the action of the angle-dependent light control film.

In addition, by randomly arranging small pieces of light control films with different angle dependencies on a plane, it is possible to scatter and absorb light at random angles even on the same plane. It is possible to achieve similar effects.

〔Example〕

Next, embodiments of the decorative display of the present invention will be described with reference to the drawings.

Example 1 Tribromophenoxyethyl acrylate (refractive index 1.567) was added to 100 parts of polyether urethane acrylate (refractive index 1.481) obtained by the reaction of polypropylene glycol with an average molecular weight of 2000, toluene diisocyanate, and 2-hydroxyethyl acrylate. ) and 6 parts of benzyl dimethyl ketal are added and mixed and a resin composition is applied to a thickness of about 800 microns on a horizontally placed 60 cm x 120 cm glass plate.

A plurality of such coating films were prepared and each coating film was irradiated with ultraviolet rays from different angles in order to create light control films with various angle dependencies. In other words, at a distance of 50 cm above the glass plate and at a 20° angle from a vertical plane parallel to the longitudinal direction of the glass plate.
A rod-shaped high-pressure mercury lamp (80W/cm, 2KW, approximately 2cm in diameter, light emitting length 25cm, manufactured by Ushio Electric) was heated at five different tilt angles: 0°, 0°, -20°, and -50°. The glass plate was placed horizontally and substantially parallel to the longitudinal direction of the glass plate, and ultraviolet rays were irradiated for 1 minute to obtain five types of cured films. This film, which had been cured on the glass plate, was peeled off from the glass plate.

The films thus obtained showed different angular dependence. Figure 3 shows the irradiation angle 50 degrees A, 20
The characteristics of three types, degree B and 0 degree C, are illustrated. The characteristic diagrams for the irradiation angles of -20 degrees D and -50 degrees E are omitted because they are the characteristic diagrams for the irradiation angles of 20 degrees and 50 degrees, respectively, centered on 0 degrees. These films were cut into small pieces of 3 cm square.
The small pieces were laminated at random on a 2 mm thick colored transparent polymethyl methacrylate resin plate formed into a rotating cube, leaving the text portions intact. The letters were colored differently from the background color, and the entire surface was covered with a 2 mm thick transparent polymethyl methacrylate resin plate to serve as a protective plate. The rotary display thus obtained is illustrated in FIG.

The rotary display had an excellent display effect because the light control film on the surface, leaving the text area, scattered and absorbed light at different angles.

Example 2 A beautiful brightly colored pattern is applied to the circumference of a cylindrical rotating body, and Example 1 is placed approximately 3 cm away from the surface.
A rotary display was prepared by covering a transparent acrylic resin sheet with light control films A and E, and then laminating a transparent plastic film as a protective film on top of the transparent acrylic resin sheet. The rotating display is designed so that the images and characters placed in front of the viewer can be seen. By using directional patterns, we were able to create an excellent display effect.

[Brief explanation of drawings]

1 and 2 show a rotary display which is an example of the decorative display of the present invention. FIG. 3 is a characteristic diagram of the angle dependence of the light control film of the present invention. 1...Small pieces of light control film (5 types of films with different angle dependencies are laminated randomly)2...
...Character (coloring), 3...Picture, 4...Light control film (covered approximately 8 cm from the picture surface), A...Light control film obtained at an ultraviolet irradiation angle of 50 degrees, B... ...Light control film obtained at an ultraviolet irradiation angle of 20 degrees, C...Light control film obtained at an ultraviolet irradiation angle of 0 degrees (vertical).

[Claims]

1. It has a display section that performs a scrolling display based on data read out from the storage means, a display section where products are placed, and a sound generator that outputs a preprogrammed sound, and the above display The unit is equipped with a controller that can change the content read from the storage means by inputting an instruction signal, and a sensor that detects the approach of a person, and the sound generating device is equipped with a timer that stops outputting the sound, and the sound generating device is equipped with a timer that stops the output of sound, Therefore, when the instruction signal is issued, the sound generation device starts outputting the pre-programmed sound, and in synchronization with the start of outputting the sound, the timer starts counting time, and after a certain period of time has elapsed, the sound output starts. A product display stand characterized by stopping the output of. 2. The product display stand according to claim 1, wherein the sensor is a far-infrared sensor that detects the approach of a person using the human body temperature. 3 The display is arranged in a dot matrix pattern.
The product display stand according to claim 1 or 2, characterized in that it is formed of an LED (Light Emitting Diode). 4. The product display stand according to claims 1 to 3, wherein the upper surface of the cover of the display section forms a display section.

Claims (1)

4. A decorative display comprising a base coated with a light control film that selectively scatters only incident light within a predetermined angle range with respect to the film, and transmits incident light at other angles.