JP6525231B2 - Backlit decoration device and game machine - Google Patents

Description

  The present invention relates to a back light type decoration device for emitting light to display a 3D graphic pattern by illuminating a decorative plate on which a translucent 3D graphic pattern is formed from behind, and a game to which the back light type decorative device is applied About the machine.

  A back light type decoration device for emitting light and displaying a design by illuminating from the back to a light transmitting decorative plate on which a specific pattern is formed by a method such as printing is a game machine, a commercial sign, a traffic sign Widely used in vending machines and the like. Among them, for the purpose of enhancing the decorativeness, it may be performed to form a translucent three-dimensional design having minute asperities on at least a part of the design of the decorative plate. As a typical forming method of this three-dimensional design, there is a printing method for forming fine crimp-like wrinkles (minute unevenness) called chime printing. This batch printing is frequently used particularly in panels for displaying the model titles of gaming machines such as slot machines.

  When appropriate illumination is performed from the back to the decorative plate on which such a three-dimensional design has been formed, the decorative effect of the design can be seen to be sparkling due to the interfacial refraction of light due to the minute unevenness on the surface. This is because an area of light that travels straight without being refracted appears as a bright part, and an area of light that does not travel straight as it is refracted appears as a dark part. Even when viewed from a direction deviated from the traveling direction of the light to be irradiated, only the part refracting the light in that direction will appear to be strongly luminous, so the contrast of light and dark will be produced and appear to be bright according to the same principle .

  By the way, whether or not the three-dimensional pattern formed on the decorative board clearly shines depends largely on the illumination placed behind. For example, it is necessary to make light incident from a certain limited direction and to make the difference with the incident amount of light from the other direction clear in order to clearly display the lightly printed three-dimensional pattern light emission and display I know. When light is incident from multiple directions, the difference in light amount due to the unevenness of the three-dimensional pattern disappears, and the expression of the three-dimensional pattern becomes weak.

  Therefore, when a planar light source is used such that the entire plane emits light uniformly as in the backlight of a liquid crystal display, diffused light is incident on a three-dimensional pattern, so the three-dimensional pattern has a clear brilliance. The light is not displayed. That is, when the diffused light having no directivity is applied to the three-dimensional design, although the effect of making the uneven brightness unremarkable is exhibited, the whole three-dimensional design shines without sharpening, and the contrast of the uneven portion becomes remarkable It decreases and you can not get a feeling of glitter.

  Therefore, for the purpose of light-emitting display with a clear sense of brightness and a three-dimensional pattern formed on a decorative plate, such as an eyelid printing, as described in Patent Document 1, there are a large number of light emitting points behind the decorative plate. There has been proposed a decoration device (internally illuminated display plate) in which a light guide plate in which a reflection portion (light emitting area) is formed is disposed. Each reflection part in this case is comprised by the inclined reflective surface formed in the back surface of the light-guide plate.

JP, 2013-15799, A

  However, in the case of the decoration device described in Patent Document 1, not all the light reflected by the reflection portion of the light guide is emitted in the direction of the decoration plate, and not a small amount of light is on the back side of the light guide plate It will also progress. Therefore, the light which has traveled to the back side is reflected by some member behind the light guide plate, and an area which is dimly white is formed around the reflection portion of the light guide plate. Therefore, there is a problem that the contrast of the light emitting point, that is, the reflection part and the surrounding thereof becomes weak, and as a result, the brightness of the three-dimensional design is reduced.

  Therefore, the present invention has been made in view of the above-mentioned circumstances, and can light-emitting and display the whole of the decorative plate with even brightness uniformly, and at the same time sharpen the three-dimensional design formed on the decorative plate. It is an object of the present invention to provide a backlit decoration device that can be highlighted with a certain brilliance and can enhance decoration and aesthetics, and a game machine to which the decoration device is applied.

In order to solve the above-mentioned problems, a back light type decoration device concerning the present invention forms a light transmission three-dimensional pattern which has minute unevenness on a plate surface of a transparent plate, and a decoration plate on which a squeeze print is applied A light guide plate made of a transparent material disposed behind the decorative plate and having a plate surface facing the back surface of the decorative plate, and a light source for introducing illumination light into the light guide plate at an end face of the light guide plate In addition, on the back surface of the light guide plate on the opposite side to the decoration plate, a plurality of reflecting portions for reflecting the light incident from the light source into the light guide plate toward the three-dimensional pattern are in the light incident direction of the light source It is formed in the shape of a straight line extending in the intersecting direction, and each of the reflecting portions is a large number of light emitting points for emitting point-like illumination light from the back of the decorative plate toward the three-dimensional design. on the back surface, wherein the respective light emitting point by the absorption of light around the light emitting points A light reflection suppressing member as a light absorbing means for darkening the enclosure and thereby enhancing the contrast of the light emitting point and the surroundings thereof; and the plurality of reflecting portions in the light entering direction and the light entering direction The reflectors are arranged side by side along each of the intersecting directions, and the positions of the reflecting portions adjacent to each other in the direction intersecting with the light incoming direction are arranged being shifted in the light incoming direction. .

  A game machine according to the present invention is characterized in that a back light type decoration device is provided on a panel facing the player.

  According to the present invention, by providing the light absorbing means for absorbing light around the light emitting point, the contrast between the light emitting point and the surroundings can be enhanced, so that the three-dimensional pattern of the decorative plate is sharp and vivid. Can be displayed with a sense of brilliance. In addition, since the light around the light emitting point is absorbed by the light absorbing means, the light emitting point can be darkened while narrowing the distance between the light emitting points, and the contrast between the light emitting point and its surroundings can be enhanced. Therefore, by narrowing the distance between the light emitting points, it is possible to cause the entire decorative plate to emit light with a uniform brightness without unevenness.

It is a sectional view of a back light type decoration device of a 1st embodiment of the present invention. It is a front view of the light guide in the said decoration apparatus of a backlight type. It is an enlarged front view for explaining the light emission point of the light guide and the brightness around it, where (a) is an embodiment of the present invention and (b) is an illustration for a comparative example. . It is sectional drawing of the backlight decoration apparatus of 2nd Embodiment of this invention. It is an exploded perspective view of a concrete example of a back light type decoration device of a 2nd embodiment of the above. It is a front view which shows schematic structure of the game machine by which this invention is integrated.

Next, embodiments of the present invention will be described with reference to the drawings.
First Embodiment
FIG. 1 is a cross-sectional view of the backlight decoration device of the first embodiment, and FIG. 2 is a front view of a light guide in the backlight decoration device.

  As shown in FIG. 1, this back light type decoration device has a decoration plate 4 provided with a translucent three-dimensional pattern 2 having a slight unevenness on the back surface of the transparent plate 1, and a plate surface direction of the decoration plate 4. The plurality of light emitting points 3 which are disposed dispersed along the back of the decorative plate 4 and emits point-like illumination light from the back of the decorative plate 4 toward the three-dimensional pattern 2 and the light around each light emitting point 3 is absorbed. The periphery of each light emitting point 3 is darkened, thereby providing the light emitting point 3 and a reflection suppressing body 10 as light absorbing means for enhancing the contrast of the light emitting point 3 and the surroundings. The three-dimensional design 2 of the decorative plate 4 is formed on the back surface of the transparent plate 1 by dip printing, but may be formed by an embossing method, a foaming method, or the like. Moreover, the three-dimensional pattern 2 of the decoration board 4 may be formed not on the back surface of the transparent plate 1 but on the surface.

(Light guide plate)
In this embodiment, a backlight comprising a light guide plate 5 made of a transparent material and a light source 7 such as an LED is provided behind the decorative plate 4. The light guide plate 5 has a size corresponding to the size of the decorative plate 4 and is disposed in a posture in which the plate surface is directed to the back surface of the decorative plate 4. Further, the light sources 7 are arranged in an array on one end face (light entrance end face 5 c) of the light guide plate 5. On the back surface of the light guide plate 5 on the opposite side to the decorative plate 4, a reflecting portion 5 a for reflecting light incident from the light source 7 into the light guiding plate 5 toward the three-dimensional pattern 2 is formed. A large number of light emitting points 3 are formed by each of the reflecting portions 5a by being disposed in a large number in a dispersed manner.

  Each reflecting portion 5 a of the light guide plate 5 is constituted by an inclined reflecting surface of the step portion formed on the back surface of the light guide plate 5. That is, on the back surface of the light guide plate 5, there is provided a step portion which reduces the plate thickness in a step-like manner from the light incident end side where light from the light source 7 is incident. An inclined reflective surface (reflective portion 5a) is provided. As shown in FIG. 2, these reflecting portions 5a are arranged to be equally distributed at appropriate intervals when the light guide plate 5 is viewed from the front. The light guide plate 5 is formed of an injection-molded article of a highly transparent thermoplastic resin (acrylic resin, polycarbonate resin, cycloolefin resin, etc.). In addition, the reflection part 5c may be formed in the inside of the light-guide plate 5 by the method of embedding etc., and may be formed in both a back surface and an inside.

(light source)
The LED used as the light source 7 is not particularly limited, but from the viewpoint of enhancing the space when disposed at the end face of the light guide plate 5 and the incident efficiency to the light guide plate 5, a surface mount type having a flat light emitting surface Package is preferred. It is also possible to obtain multicolor lighting effects by using multicolor light emitting diode chips such as red, blue, and green in one package. It is also possible to make the LED blink to give a rendering effect, and further, in the case of using a multi-color LED light source, various renderings by illumination become possible. In addition, since the LED has a long life, maintenance of lamp replacement is almost unnecessary. The plate thickness on the light entrance end face 5c side of the light guide plate 5 is a thickness covering the light emitting area of the LED used, and the LED (light source 7) and the light entrance end face 5c are arranged as close as possible. Can be efficiently incident into the light guide plate 5.

(Light absorbing means)
In addition, as the light reflection suppressing body 10 which is a light absorbing means, a light absorbing film body of a blackish color is used. The light absorbing film (light reflection suppressing body 10) may be formed by affixing a highly light absorbing black-based sheet to the back of the light guide 5, a black-based paint, etc. It may be formed by spraying or painting. Alternatively, it may be formed by disposing a black-based sheet at a slight distance from the back surface of the light guide 5.

(Action)
Next, the operation in which the three-dimensional design 2 formed on the decorative plate 4 is displayed with a sharp sense of brilliance will be described.
As described above, the brilliance of the three-dimensional design 2 is caused by the contrast of light and dark in a minute area, but when the illumination light is irradiated to the same part from various directions and mixed, the contrast of light and dark is obtained. It does not occur.

  In the decoration device of this embodiment, by providing the light absorbing means (light reflection suppressing body 10) for absorbing the light around the light emitting point 3, it is possible to make the light and dark contrast of the light emitting point 3 and its surroundings stand out. That is, since the light reflection suppressing body 10 of blackish color is disposed on the back surface of the light guide 5, as shown in FIG. 3A, light around the reflecting portion 5a which is the light emitting point 3 is guided Even if it travels to the back side of the body 5, it is absorbed by the light reflection suppressing body 10. Therefore, the area around the light emitting point 3 can be darkened while narrowing the distance between the light emitting points 3 (reflecting portion 5a), and the contrast between the light emitting point 3 and the surrounding area can be enhanced.

  On the other hand, for example, when a white-based reflection sheet or the like is disposed on the back surface of the light guide 5 instead of the light reflection suppressing body 10, as shown in FIG. When the light around a certain reflection portion 5a travels to the back side of the light guide 5, it is reflected by the reflection sheet and bounces back to the front. Accordingly, the periphery of the light emitting point 3 is also dimly lit by the reflected light, and the contrast between the light emitting point 3 and the periphery thereof becomes weak.

(Experimental result)
Here, comparative experimental results in the case where the black-based reflection suppressing body 10 is disposed on the back surface of the light guide plate 5 and in the case where the white-based reflection sheet is disposed on the back surface of the light guide plate 5 will be described. When the brightness of the bright spot (light emitting spot 3) and the brightness around it were measured, the following results were obtained. The unit of brightness is cd / m ² .

Brightness of bright spot Brightness around bright spot White reflector 6940 1230
Black reflector 6980 13

  As described above, in the case of the embodiment of the present invention, the light reflection suppressing member 10 of the blackish color is disposed on the back surface of the light guide 5 so that the contrast between the light emitting point 3 and the periphery thereof becomes prominent. . As a result, it is possible to display the three-dimensional pattern 2 of the decorative board 4 with sharp and vivid, that is, with a sharp and sparkling feeling. In addition, since the periphery of the light emitting point 3 can be darkened while narrowing the distance between the light emitting points 3, it is possible to light emitting and display the entire decoration plate 4 with uniform brightness without unevenness.

  Incidentally, the gap between the surface formed by the three-dimensional design 2 and the light guide plate 5 having the light emitting point 3 (reflecting portion 5a) is about 15 mm to 25 mm, and the distance between the light emitting points 3 is about 5 mm to 10 mm. The experimental result that it is good to give a sense of brightness was obtained.

Second Embodiment
Next, a backlight type decoration device of a second embodiment will be described.
FIG. 4 is a cross-sectional view of the backlight decoration device of the second embodiment, and FIG. 5 is an exploded perspective view of a specific example of the backlight decoration device of the second embodiment.

(Light shield)
In the second embodiment, as shown in FIG. 4, a light shielding plate 12 in which a large number of through holes 12 a are dispersedly formed is disposed behind the decorative plate 4, and each of the light shielding plates 12 is disposed behind the light shielding plate 12. A light source 17 for emitting illumination light forward through the through hole 12a is disposed. A light source such as a backlight of a liquid crystal display can be employed as the light source 17. FIG. 4 shows an example thereof, and the light source 17 is disposed on a light guide plate 17a having flat both plate surfaces, a lamp 17b for LED which makes illumination light enter the end face of the light guide plate 17a, and a back surface of the light guide plate 17a. And a diffuse reflection plate.

  In the case of this embodiment, when the light of the light source 7 passes through the through holes 12 a of the light shielding plate 12, each through hole 12 a corresponds to a light emitting point. Further, since the portion other than the through hole 12a of the light shielding plate 12 shields the light from the light source 7, it corresponds to a light absorbing means. The structure of the decoration plate 4 other than that is the same as that of 1st Embodiment.

(Action)
According to the decoration device of this embodiment, the three-dimensional design 2 of the decoration plate 4 is displayed with a vivid sense of brilliance by the light emitted through the through holes 12 a dispersedly formed in the light shielding plate 12. Also in this case, since at least one of the both surfaces of the light shielding plate 12 is blackish in the front surface, unnecessary scattered light can be absorbed, so that the contrast can be further enhanced.

(Game machine)
Next, the configuration of the gaming machine into which the decorative device of the first embodiment and the second embodiment described above is incorporated will be briefly described.

FIG. 6 is a front view showing a schematic configuration of the gaming machine.
In the following, the "front" refers to the side that the player faces when playing a game in the gaming machine, and the "right" refers to the right side as viewed from the player who plays in front of the gaming machine. The “left side” refers to the left side as viewed from the player playing the game facing the front of the gaming machine.

  A front panel 101 is provided on the front of the housing of the slot machine 100 as a gaming machine. At the approximate center of the front panel 101, a display can be seen from the front of the slot machine 100, the symbols displayed on the cylindrical peripheral surfaces of the three rotating reels 111, 112, 113 rotatably provided inside the slot machine 100. A window 102 is formed.

  The three rotating reels 111, 112, 113 are provided such that the respective rotation axes are aligned on the same straight line in the horizontal direction, and a plurality of symbols are formed at equal intervals on each cylindrical peripheral surface. Then, when the rotating reels 111, 112, 113 are stopped, three of the symbols of the respective reels 111, 112, 113 from the display window 102 are continuous along the rotational direction of the respective reels 111, 112, 113. The symbol is visible. That is, the display window 102 is configured to stop and display 3 × 3 = total nine symbols.

  Further, in the display window 102, as a pay line, an upper pay line passing through the upper three symbols, a middle pay line passing through the middle three symbols, and a lower pay passing through the lower three symbols A line, an upper right pay line passing through three lower left, center and upper right symbols, and a lower right pay line passing through upper left, middle and lower right symbols are set. The pay lines are lines serving as a reference when determining a symbol combination corresponding to a plurality of predetermined types of winning combinations. Then, when the three rotating reels 111, 112 and 113 stop, the combination of the three symbols stopped and displayed at the stop display position where the pay lines regarded as valid cross across the five pay lines will become If it corresponds to the role of Kano, that role is established.

  Further, a liquid crystal display 103 for displaying various information is provided at a position above the display window 102 in the front panel 101. Further, a display panel 104 is provided above the display window 102, and the backlight-type decoration device of the first embodiment or the second embodiment is incorporated in the display panel 104.

  Further, on the right side of the operation unit 110 below the display window 102, a medal insertion slot 105 for inserting a medal is provided. On the upper left side of the upper surface of the operation unit 110, a bet switch 106 for betting a credited medal is provided. In the vicinity of the upper left end of the operation unit 110, a settlement switch 108 for returning a credited medal is provided. On the front left side of the operation unit 110, a start switch 107 for starting rotation of each of the rotating reels 111, 112, 113 is provided. At the center of the front surface of the operation unit 110, three stop switches 121, 122, 123 for stopping the rotation of the respective rotating reels 111, 112, 113 are provided side by side.

  Further, at the lower center of the front panel 101, a medal payout port 125 for paying out medals is provided. Below the medal payout opening 124, a medal receiving tray 126 for receiving and storing the medal paid out from the medal payout opening 125 is provided.

  As described above, by incorporating the decorative device of the above-described embodiment into the slot machine 100, a refreshing effect can be exhibited.

  Depending on the mounting location of the display panel, the appearance from an oblique direction shifted from the normal direction may be important. In such a case, it is possible to enhance the brightness in the oblique direction and the brilliance of the three-dimensional design by intentionally emitting light emitted from the light guide plate 5 or the light shielding plate 12 in the oblique direction. .

The present invention is not limited to the above-described embodiment, and includes the above-described embodiment with various modifications, without departing from the spirit of the present invention.
For example, the present invention can be widely applied to other types of game machines such as pachinko machines, vending machines, traffic signs, commercial billboards, etc., in addition to being applied to slot machines (pachislot machines) as game machines.

DESCRIPTION OF SYMBOLS 1 ... Transparent plate 2 ... Three-dimensional design 3 ... Light emission point 4 ... Decoration plate 5 ... Light guide plate 5a ... Reflection part 7 ... Light source 10 ... Light reflection suppression body (light absorption means)
12 ... Light shield (light absorbing means)
12a ... through hole (light emitting point)
17 ... light source

Claims (4)

A decorative plate on which a texture printing is performed to form a translucent three-dimensional pattern having minute asperities on the surface of the transparent plate,
A light guide plate disposed behind the decorative plate and made of a transparent material with the plate surface facing the back of the decorative plate;
A light source for introducing illumination light into the light guide plate is disposed on the end face of the light guide plate, and
On the back surface of the light guide plate on the opposite side to the decorative plate, a plurality of reflecting portions for reflecting the light incident from the light source into the light guide plate toward the three-dimensional pattern intersect the light incident direction of the light source Formed in a straight line extending in the direction,
Each of the reflecting portions is a number of light emitting points for emitting point-like illumination light from the back of the decorative plate toward the three-dimensional design;
On the other hand, as the light absorbing means which darkens the surroundings of each light emitting point by absorbing the light around each of the light emitting points on the back surface of the light guide plate, thereby making the contrast between the light emitting point and its surroundings stand out Light reflection suppressor, and
Equipped with
The plurality of reflecting portions are arranged along the light incoming direction and a direction crossing the light incoming direction, and the positions of the reflecting portions adjacent in the direction crossing the light incoming direction Backlit decoration device characterized in that it is arranged to be shifted in the light incoming direction. The plurality of reflectors are arranged side by side in a plurality of columns along the light incoming direction and a plurality of rows along a direction intersecting the light incoming direction when viewed from the normal direction of the surface of the light guide plate. backlit decorative device according to claim 1, characterized in that it is.   The said light reflection suppressing body is comprised with the film body of a blackish color, The decoration apparatus of the backlight type of Claim 2 characterized by the above-mentioned.   A game machine characterized by being provided with the backlight type decoration device according to any one of claims 1 to 3 on a panel facing the player.