JP2007163760A - Marking apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a marking apparatus, capable of performing marking of high contrast between a first pattern and a second pattern in both bright and dark periods, and capable of performing brightness/darkness inverted marking between the first pattern and the second pattern in both the bright and dark periods, with a simple configuration. <P>SOLUTION: The apparatus comprises: a front member 1 including the outer shape of a first pattern and including a light transmission section 2 which has the shape of a second pattern; a light control film 4 which is arranged in an area corresponding to the light transmission section 2; and a main light source 6 arranged at the back of the light control film 4. In the light control film 4, minute light transmitting areas are dispersed and arranged in a light shield area by forming light shield sections 42 on a transparent material 41. The area ratio of the light transmitting area to the sum of the light shield areas and the light transmitting area is set to 10 to 20%. Light transmittance of the light shield area is 10% or less, and light transmittance of the light transmitting area is 95% or more. The light transmitting area forms a dotted shape or a line shape. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a marking device such as a symbol mark sign and an advertising billboard, and in particular, it is possible to perform a sign in which the light / dark relationship between two kinds of sign patterns is reversed when the surroundings are bright and dark. Related to a marking device.

  Many of the symbol mark marking device, the advertising billboard and other marking devices use a combination of a plurality of types of marking patterns. For example, a combination of a logo mark pattern and a word mark pattern such as a company name is used in a symbol mark display, and a combination of a pattern pattern and a word mark pattern such as a catchphrase or company name is used in an advertising billboard. . In terms of impression given to the observer, the word mark pattern is somewhat independent of the logo mark pattern and the design pattern.

  It is desirable that the marking device gives a strong impression to the observer for that purpose. In particular, in recent years, it has been desired to obtain a marking effect with the same marking device regardless of day or night. However, in such a conventional general marking device that is used both day and night, the illumination pattern is illuminated from the front side by using outside light during the daytime, and at night by an illumination device arranged on the front side of the marking pattern. Illumination is performed on the marking pattern. In this case, the light / dark relationship of the word mark pattern with respect to the logo mark pattern or the design pattern in the sign basically does not change between daytime and nighttime. That is, when the word mark pattern is dark with respect to the logo mark pattern or the design pattern at daytime, the word mark pattern is dark with respect to the logo mark pattern or the design pattern at night.

  In order to obtain a different marking effect in the dark than in the bright, a logo mark pattern, a pattern pattern, and a word mark pattern (that is, all patterns) are formed on the light transmissive film by printing or the like. There is one in which a light source is disposed on the back side of a transparent film. However, in this marking device, the overall impression of the marking differs depending on whether it is illuminated from the front side due to outside light in the daytime or when illuminated from the back side due to a light source at night. The light / dark relationship of the second pattern such as the word mark pattern with respect to the first pattern such as the symbol pattern does not change.

  In the conventional day / night sign device as described above, the light / dark relationship of the second pattern such as the word mark pattern with respect to the first pattern such as the logo mark pattern or the design pattern in the sign does not change between daytime and nighttime. It was impossible to give a strong impression to the observer based on a large change in the light-dark relationship between the first pattern and the second pattern during daytime and nighttime.

On the other hand, in Patent Document 1, in order to provide an illuminated display laminate having a strong impact and a display function excellent in unexpectedness and performance, a character design layer, a black pigment on a transparent or translucent substrate. And laminating a pigment composition layer containing a color pigment and a pigment composition layer containing a color pigment. Patent Document 2 discloses a metallic luster pigment in order to provide a light-transparent colored film that appears black or dark under reflection conditions and exhibits concealment, and allows a bright image under the film to be visible under internal illumination conditions. Laminating a first light transmissive layer containing a second light transmissive layer containing a black or dark colorant is disclosed.
JP 2002-182594 A JP 2004-101712 A

  The indication which implement | achieves the big change of the light-dark relationship of the 2nd pattern with respect to the 1st pattern in the time of light and dark by using the laminated body of the above patent document 1, or the film of patent document 2 It is conceivable to configure the device.

  However, the laminate described in Patent Document 1 or the film described in Patent Document 2 uses a laminate of a plurality of functional layers in order to obtain a large change in the above-described light-dark relationship in the marking, so the configuration is complicated. There is a problem that it is disadvantageous for cost reduction.

  An object of the present invention is to enable marking with high contrast between the first pattern and the second pattern both in the bright time and in the dark time, and the first pattern and the second in the bright time and the dark time. It is an object of the present invention to provide a labeling device that is capable of displaying a sign in which the light / dark relationship with the pattern is reversed and that is simple in configuration.

According to the present invention, as a solution to the above problems,
A marking device that uses the contrast between a first pattern and a second pattern,
A front member having an outer shape of the first pattern and having a light transmission part of the shape of the second pattern, a light control film disposed in a region corresponding to the light transmission part, and a back of the light control film And a main light source arranged in the
In the light control film, fine light-transmitting regions are dispersed in the light-blocking region, and the ratio of the area of the light-transmitting region to the total area of the light-blocking region and the light-transmitting region is 10 to 20. % Marking device,
Is provided.

  In one embodiment of the present invention, the light transmittance of the light shielding region is 10% or less, and the light transmittance of the light transmitting region is 95% or more. In one aspect of the present invention, the surface of the front member has higher brightness or metallic luster than the surface of the light shielding region. In one embodiment of the present invention, the light-transmitting region has a dot shape or a line shape. In one aspect of the present invention, a light diffusion plate is disposed behind the light control film. In one aspect of the present invention, the marking device further includes an indirect illumination light source for rearward light irradiation behind the front member in a region other than the region where the main light source is disposed. . In one aspect of the present invention, the indirect illumination light source is an LED. In one aspect of the present invention, the main light source is an LED.

  In the marking device of the present invention as described above, a light control film is disposed in a region corresponding to the light transmission portion of the front member, a main light source is disposed behind the light control film, and the light control film is disposed in a light shielding region. In this case, the ratio of the area of the light-transmitting region to the total area of the light-shielding region and the light-transmitting region is set to 10 to 20%. It is possible to display a sign with high contrast between the first pattern and the second pattern both in the time and in the dark, and between the first pattern and the second pattern in the light and dark Signs with reversed light and dark relations are possible, and the structure is simple.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic plan view showing a symbol mark indicator which is one embodiment of the indicator device according to the present invention, and FIG. 2 is a schematic partially exploded sectional view taken along line XX.

  In the marking device of the present embodiment, the light transmitting portion 2 having the shape of the second pattern is formed on the front member 1 having the outer shape of the first pattern. The front member 1 includes an annular portion 1A and a belt-like portion 1B extending in one diameter direction of the annular portion. The first pattern is a logo mark made up of a combination of an annular shape and a belt shape that are the shapes of these portions 1A and 1B. However, in the present invention, the first pattern may be a simple shape such as a quadrangle. The light transmitting portion 2 is an opening (may be a notch) formed in a pattern in the belt-shaped portion 1B, and is a word mark made of a character string such as “ABCD” as shown.

  The front member 1 is made of, for example, a stainless steel plate-like member having a thickness of about 1 mm, and the surface shape thereof may be a flat surface or an appropriate curved surface. Accordingly, in the present embodiment, the front member 1 has a silver metallic luster on the front surface and the back surface. Alternatively, the front member 1 may be a white or other high-brightness painted surface.

  As shown in FIG. 2, a transparent protective plate 3, a light control film 4, a light diffusing plate 5, a plurality of main light sources 6, and a back member 7 are arranged in this order on the back side of the front member 1. ing. The transparent protective plate 3 is made of, for example, an acrylic resin plate having a thickness of 2 to 5 mm, and has a function of preventing the light control film 4 from being damaged by being exposed to the outside through the light transmitting portion 2.

  FIG. 3 shows a schematic partial enlarged plan view of a specific example of the light control film 4. In the light control film 4, fine light-transmitting regions 4B are dispersed and arranged in the light-shielding region 4A. In the specific example of FIG. 3A, the translucent region 4B has a dot shape. The dot shape of the light transmitting region 4B is circular in FIG. 3 (a), but is not limited to this, and is a polygon such as a triangle, a quadrangle, a pentagon, a hexagon,. It may be a shape or a cross shape. The dot arrangement is preferably low in regularity, and particularly preferably random. In the specific example of FIG.3 (b), the translucent area | region 4B has comprised the shape of a line. The line arrangement pitch is preferably low in regularity. The dot diameter (minor axis) or line width is, for example, 0.01 mm to 0.5 mm, preferably 0.01 mm to 0.2 mm, and more preferably 0.01 mm to 0.1 mm. However, these dimensions can be set as follows according to the size of the second pattern and the distance to the observer. That is, when the second pattern at the time of light is observed, the light shielding region 4A is averaged and visually recognized (that is, the light transmitting region 4B is not visually recognized). Further, when observing the second pattern in the dark, the light emitted from the light-transmitting region 4B is averaged and visually recognized (that is, the shadow of the light-shielding region 4A is not visually recognized).

  As shown in FIG. 2, the light control film 4 can be obtained by forming a light shielding portion 42 by printing on the surface of the transparent base material 41 with a light shielding ink. As the transparent substrate 41, for example, a transparent film made of polyethylene terephthalate (PET) having a thickness of about 0.1 to 0.3 mm can be used. As a printing method, for example, offset printing or silk screen printing can be used. As the light-shielding ink for forming the light-shielding portion 42, for example, an ultraviolet curable ink containing a black pigment such as carbon black or other colorant that can be colored darkly can be used. The thickness of the light shielding portion 42 is, for example, about 1 μm in the case of offset printing, and is, for example, about 6-7 μm in the case of silk screen printing. As described above, the light shielding region 4 </ b> A is configured by the laminated body of the transparent base material 41 and the light shielding unit 42, and the light transmitting region 4 </ b> B is configured by the transparent base material 41. Preferably, the light transmittance of the light shielding region 4A is 10% or less, such as 8% or less, particularly 6% or less, and the light transmittance of the light transmitting region 4B is 95% or more, such as 97% or more, particularly 99% or more. is there.

  In the present invention, the ratio R of the area of the light transmitting region 4B to the total area of the light shielding region 4A and the light transmitting region 4B is in the range of 10 to 20%. By setting the area ratio R within this range, it is possible to display a sign with high contrast between the first pattern and the second pattern both in the bright time and in the dark time. It is possible to satisfactorily exhibit the function of enabling the inversion of the light / dark relationship between the first pattern and the second pattern. That is, if the ratio R is less than 10%, the brightness of the second pattern when the main light source 6 is turned on in the dark tends to be insufficient, and the risk of lowering the contrast with the first pattern tends to increase. When the ratio R exceeds 20%, the brightness of the second pattern at the time of light tends to be high, and there is a tendency that the contrast with the first pattern is lowered.

  The light diffusing plate 5 has a function of making the light incident on the light control sheet 4 with an averaged distribution by diffusing the light emitted from the plurality of main light sources 6. The light diffusing plate 5 is made of, for example, an acrylic resin plate (milk half plate) having a thickness of about 1 to 3 mm obtained by dispersing titanium oxide particles as a light diffusing agent.

  The transparent protective plate 3, the light control film 4, and the light diffusing plate 5 described above can be joined and integrated with, for example, a double-sided adhesive tape. Further, as shown in FIG. 1, the transparent protective plate 3, the light control film 4, and the light diffusion plate 5 are only in the region corresponding to the band-shaped portion 1 </ b> B where the light transmitting portion 2 of the front member 1 is formed. Can be arranged.

The main light source 6 is made of a light emitting diode (LED), for example. As the LED, a white light emitting LED [for example, a W2 type LED package (radiation angle 120 °) manufactured by Mitsubishi Electric OSRAM Co., Ltd.] can be used. However, in this invention, LED is not limited to the thing of white light emission, The thing of another desired light emission color can be used. Preferably, an appropriate number of LEDs are mounted on the band-like hard or flexible substrate 6 ′ in one or two rows at an appropriate interval (for example, an interval of 10 to 20 mm), and each LED is mounted on the substrate 6 ′. A module in which a power feeding circuit (not shown) is arranged and modularized can be used. For example, an aluminum heat dissipating member (not shown) can be connected to the substrate 6 'if desired. The distance between the light diffusing plate 5 and the substrate 6 ′ is, for example, 30 to 60 mm. The main light source 6 is preferably arranged in a region corresponding to the light transmission part 2 so that at least required light arrives at the light transmission part 2. It is preferable that the main light source 6 sets individual outputs, the number used, the arrangement density, and the like so that the luminance after passing through the light control film 4 is 200 to 1000 cd / m ² .

  The back member 7 is a structural member having an outer shape equivalent to that of the front member 1 and is made of, for example, a plate-like member made of stainless steel having a thickness of about 1 mm, and the surface shape thereof is preferably a flat surface.

  4 is a schematic partial cross-sectional view taken along line YY of FIG. In the present embodiment, as shown in FIG. 4, an indirect illumination light source 16 for irradiating light behind is provided behind the front member 1 in a region other than the region where the main light source 6 is disposed. Yes. The indirect illumination light source 16 is composed of, for example, a light emitting diode (LED) similar to the main light source 6, and preferably an appropriate number of LEDs are mounted in a row on a strip-shaped hard or flexible substrate 16 ′. In addition, a power supply circuit (not shown) for each LED is arranged on the substrate 16 ′ and modularized. For example, an aluminum heat dissipating member (not shown) can be connected to the substrate 16 'if desired. The indirect illumination light source 16 can be arranged along the outer edge of the front member 1. As shown in the drawing, the back member 7 is formed with light transmitting openings 8 formed at appropriate intervals along the outer edge. The opening 8 may be provided with a light transmissive window. In FIG. 4, the wall surface 9 to which the marking device of this embodiment is attached is shown. The wall surface 9 is arranged substantially parallel to the back member 7 and separated from the back member by an appropriate distance. Therefore, the light emitted from the indirect illumination light source 16 travels from the opening 8 toward the wall surface 9, illuminates a portion of the wall surface 9 mainly along the outer edge of the front member 1, and reflects this illumination light. Light travels forward. The back member 7 is attached to the wall surface 9 by attachment means (not shown).

  FIG. 5 is a schematic diagram showing the arrangement of the main light source 6 and the indirect illumination light source 16 on the front side of the back member 7. In this figure, the pattern shape of the light transmission part 2 is also illustrated.

  FIG. 6 is a schematic diagram showing the configuration of the power supply path for the main light source 6 and the indirect illumination light source 16. A power supply 11 is connected to the required number of modules of the main light source 6 and the indirect illumination light source 16 via the ON-OFF control means 10, thereby forming a power feeding path.

  Next, the operation of the marking device of this embodiment will be described.

  In the daytime such as in the daytime when the ambient light is illuminated by external light, the ON-OFF control means 10 cuts off the power supply from the power source 11 to the main light source 6 and the indirect illumination light source 16. In that case, the 2nd pattern visually recognized through the light transmissive part 2 has a low brightness of black or dark color based on the reflected light of the light shielding region 4A occupying an area of 80 to 90% of the light control film 4 It will be a thing. On the other hand, the first pattern has a high brightness such as metallic luster or white based on the reflected light from the surface of the front member 1. As a result, as shown in FIG. 7, it is possible to perform a high-contrast marking in which the first pattern has high brightness and the second pattern has low brightness.

  On the other hand, the power source 11 supplies power to the main light source 6 and the indirect illumination light source 16 by the ON-OFF control means 10 in the dark such as at night when there is almost no external light in the surrounding environment. In that case, the 2nd pattern visually recognized through the light transmissive part 2 is the high brightness based on the light from the main light source 6 which permeate | transmits the translucent area | region 4B which occupies 10-20% area | region of the light control film 4. Will be. On the other hand, the first pattern has low brightness based on the shadow that emerges from the indirect illumination light emitted from the indirect illumination light source 16 and reflected by the wall surface 9 as a background. As a result, as shown in FIG. 8, it is possible to perform a high-contrast marking in which the first pattern has a low brightness and the second pattern has a high brightness.

  Thus, it is possible to display a sign with high contrast between the first pattern and the second pattern both in the bright time and in the dark time, and further, the first pattern and the second pattern in the bright time and the dark time. It is possible to display a sign in which the light-dark relationship between and is reversed.

It is a typical top view showing one embodiment of a marking device by the present invention. FIG. 2 is a schematic partial exploded cross-sectional view taken along line XX in FIG. 1. It is a typical partial enlarged plan view of the specific example of a light control film. It is a typical fragmentary sectional view along the YY line of FIG. It is a schematic diagram which shows arrangement | positioning of the main light source and an indirect illumination light source. It is a schematic diagram which shows the structure of the electric power feeding path | route with respect to a main light source and an indirect illumination light source. It is operation | movement explanatory drawing of the marking apparatus by this invention. It is operation | movement explanatory drawing of the marking apparatus by this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Front member 1A Ring-shaped part 1B Band-shaped part 2 Light transmission part 3 Transparent protection board 4 Light control film 41 Transparent base material 42 Light-shielding part 4A Light-shielding area 4B Light-transmission area 5 Light diffusing plate 6 Main light source 6 'Board | substrate 7 Back member 8 Opening for light transmission 9 Wall surface 10 ON-OFF control means 11 Power source 16 Indirect illumination light source 16 'Substrate

Claims (8)

A marking device that uses the contrast between a first pattern and a second pattern,
A front member having an outer shape of the first pattern and having a light transmission part of the shape of the second pattern, a light control film disposed in a region corresponding to the light transmission part, and a back of the light control film And a main light source arranged in the
In the light control film, fine light-transmitting regions are dispersed in the light-blocking region, and the ratio of the area of the light-transmitting region to the total area of the light-blocking region and the light-transmitting region is 10 to 20. The marking device characterized by being%. 2. The marking device according to claim 1, wherein the light transmittance of the light shielding region is 10% or less, and the light transmittance of the light transmitting region is 95% or more. The marking device according to claim 1, wherein the surface of the front member has a higher brightness or a metallic luster than the surface of the light shielding region. The said translucent area | region has comprised the shape of a dot or a line, The marking apparatus in any one of Claims 1-3 characterized by the above-mentioned. The marking device according to claim 1, wherein a light diffusing plate is disposed behind the light control film. The labeling apparatus further includes an indirect illumination light source for irradiating light rearward behind the front member in a region other than the region where the main light source is disposed. The marking device according to any one of 1 to 5. The sign device according to claim 6, wherein the indirect illumination light source comprises an LED. The said main light source consists of LED, The marking apparatus in any one of Claims 1-7 characterized by the above-mentioned.

Images