JP2012034849A - Dot matrix display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dot matrix display device easy to adjust the shadow thickness of a partition wall which appears in a letter, symbol, or the like displayed by light emission.SOLUTION: The dot matrix display device 100 includes: LEDs 151; the partition walls 140a for partitioning the LEDs 151 at equal intervals; and a light diffusion layer disposed on the opening side of the partition walls 140a. The partition walls 140a are spaced apart from the light diffusion layer such that the distance h from the opening side end of the partition wall 140a to the light diffusion layer satisfies the relationship: 0<h<(a+w/2)tanθ-b, based on the distance (a) from the LED 151 to the partition wall 140a, a difference b between the distance from a flat surface to the opening side end of the partition wall 140a and the distance from the flat surface to the opening side end of the LED 151, the thickness w of the partition wall 140a, and the angle θ between the shortest line connecting the opening side end of the LED 151 with the partition wall 140a and the shortest line connecting the opening side end of the LED 151 with the opening side end of the partition wall 140a.

Description

  The present invention relates to a technique for a dot matrix display that displays characters, figures, and the like by turning on only an arbitrarily selected light source among a plurality of light sources partitioned by a partition wall.

  2. Description of the Related Art Conventionally, a technique of a dot matrix display that displays characters, graphics, and the like by lighting only an arbitrarily selected light source among a plurality of light sources partitioned by a partition wall is known.

  As an example of a dot matrix display, provided in a gaming machine such as a pachinko machine, a plurality of light sources arranged at equal intervals, a grid-like partition that divides the plurality of light sources at equal intervals, and one side of the partition And a display surface provided.

  In such a configuration, when a desired light source is turned on, light from the light source is irradiated onto the display surface. By arbitrarily selecting the light source to be turned on, symbols, numbers, characters, etc. can be displayed on the display surface. The light is visually recognized from the player in front through the display surface, and an impression (impact) can be given to the player.

  In the dot matrix display configured as described above, the shadow of the partition wall that partitions adjacent light sources appears on the display surface. If the width (thickness) of the shadow of the partition wall is too wide or too narrow, the appearance when visually recognized by the player may be impaired. Therefore, it is desirable to arbitrarily adjust the thickness of the shadow of the partition wall displayed on the display surface.

  For example, as a method of adjusting the thickness of the shadow of the partition wall, a method of reducing the thickness of the partition wall itself can be considered. However, normally, the partition wall is molded using a mold, but there are limits to making the partition wall thinner in consideration of ease of die cutting and molding accuracy. Therefore, as another method, the technique described in Patent Document 1 is known.

  In the dot matrix display described in Patent Document 1, by disposing a lens corresponding to each light source on the display surface, the light from the light source is expanded, and the shadow thickness of the partition wall seen from the player side is reduced. Can be adjusted.

Japanese Unexamined Patent Publication No. 7-51450

  However, in the dot matrix display described in Patent Document 1, the provision of the lens may cause an increase in cost, and the positioning of the light source and the lens requires high accuracy, so that the assembly work is complicated. In some cases, it may be difficult to adjust the thickness of the partition wall shadow.

  The present invention has been made in view of the above-described problems, and the problem to be solved is to easily adjust the thickness of the shadow of the partition wall that appears in the light-displayed characters or figures. A dot matrix display is provided.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

That is, in claim 1, a plurality of light sources arranged at equal intervals on the same plane, the plurality of light sources are equally spaced, and a partition wall having an open portion in a direction perpendicular to the plane; And a light diffusion layer that diffuses and transmits light from the light source, and that emits light by diffusing and transmitting the light from the light diffusion layer. The distance h from the open end to the light diffusion layer is the distance a from the light source to the partition, the distance from the plane to the open end of the partition, and the distance from the plane to the open end of the light source Difference b, the thickness w of the partition wall, and the angle θ formed by the straight line connecting the open side end of the light source and the partition wall in the shortest and the straight line connecting the open side end of the light source and the open side end of the partition wall Based on the relationship shown in Equation 1 below As satisfied, in which said light diffusing layer and the partition wall are spaced apart.
(Equation 1)
0 <h <(a + w / 2) tan θ−b

  According to a second aspect of the present invention, a translucent plate having a thickness h and disposed between the partition wall and the light diffusion layer and having translucency is provided.

  According to a third aspect of the present invention, the brightness of the open end face of the partition is set lower than the brightness of the surface of the partition facing the light source.

  As effects of the present invention, the following effects can be obtained.

  According to the first aspect, by adjusting the distance h within the range of Formula 1, it is possible to easily adjust the thickness of the shadow of the partition wall appearing in the light-displayed characters or graphics to a desired thickness. Further, complicated positioning is unnecessary, and the assembling work can be easily performed.

  According to the second aspect, the distance between the partition wall and the light diffusion layer can be easily adjusted to h. Therefore, complicated adjustment is unnecessary, and the assembling work can be easily performed.

  In the third aspect, when the dot matrix display of the present invention is viewed from the display side, the shape of the partition wall is difficult to visually recognize.

1 is a front view showing an overall configuration of a gaming machine including a dot matrix display according to an embodiment of the present invention. The front view which shows a game board and a dot matrix display. (A) The front view which shows a dot matrix display. (B) Bottom sectional drawing which shows the AA cross section in (a). The disassembled perspective view which shows a dot matrix display. The disassembled perspective view which shows a partition plate and an LED board. (A) The front view which shows the positional relationship of a partition and LED. (B) The disassembled perspective view which shows the positional relationship of a partition plate and an LED board. FIG. 4 is a bottom cross-sectional enlarged view showing an AA cross section in FIG. (A) The front view which shows the display surface in case of h = 0. (B) Similarly, a bottom cross-sectional view of a dot matrix display. (A) The front view which shows the display surface in the case of h = hmax. (B) Similarly, a bottom cross-sectional view of a dot matrix display. (A) The front view which shows other embodiment of a partition. (B) Similarly, the front view which shows other embodiment of a partition. (C) Similarly, the front view which shows other embodiment of a partition.

First, an overall configuration of a gaming machine 1 including a dot matrix display 100 according to an embodiment of the present invention will be described with reference to FIG.
In the following description, when the gaming machine 1 is viewed from the player, the front side of the gaming machine 1 is defined as the front side of the gaming machine 1 and the back side as the rear side of the gaming machine 1. Further, when the gaming machine 1 is viewed from the player, the left-hand side is defined as the left side of the gaming machine 1 and the right-hand side is defined as the right side of the gaming machine 1 to define the left-right direction of the gaming machine 1.

  The gaming machine 1 is provided with an outer frame 10 that forms an outline of the machine body. The outer frame 10 is a substantially square cylindrical frame body whose front and rear surfaces are opened. The outer frame 10 is installed on a stand island provided in a game hall such as a pachinko hall. In the opening on the front side of the outer frame 10, a middle frame 20, which is a substantially rectangular frame body, is rotatably supported via a shaft support member such as a hinge. A game board 50 in which a game area 58 is formed is detachably attached to the middle frame 20 (see FIG. 2). Further, the middle frame 20 supports a window frame 30 that is a substantially flat frame body and a lower plate unit 40 so as to be rotatable via a shaft support member such as a hinge.

  A substantially circular window frame opening 31 is opened at the approximate center of the window frame 30 when viewed from the front. The window frame opening 31 is covered with a transparent plate 34 so that the game area 58 of the game board 50 supported by the middle frame 20 can be viewed from the front. Further, below the window frame opening 31 of the window frame 30, an upper plate 32 for storing game balls before launching is disposed. In addition, speakers 33 are respectively arranged on the upper left and right of the window frame opening 31 of the window frame 30.

  The lower dish unit 40 is disposed below the window frame 30. A lower plate 41 in which game balls overflowing from the upper plate 32 are stored is disposed at the approximate center of the lower plate unit 40. Also, on the right side of the lower tray unit 40, a launching handle 42 that is connected to a game ball launching device (not shown) and configured to launch the game balls stored in the upper tray 32 toward the game area 58 is arranged. Established.

  Next, the configuration of the game board 50 will be described in more detail with reference to FIG.

  The game board 50 includes a base 51, a dot matrix display 100, a guide rail 53, a general winning port 54, a big winning device 55, a variable winning device 56, and an out port 57.

  The base 51 is a member that forms the main structure of the game board 50. The base 51 is a substantially flat plate member to which each component of the game board 50 is attached. A symbol display opening 61 for attaching the dot matrix display device 100 is opened in a substantially rectangular shape when viewed from the front.

  The dot matrix display device 100, which will be described in detail later, is a device that includes a display surface 120 that variably displays symbols and numbers. The dot matrix display 100 is attached to the rear surface side of the base 51 with the display surface 120 facing forward. The display surface 120 is disposed so as to face the front through the symbol display opening 61 and is visible from the front of the base 51. In addition, the display surface 120 is disposed slightly behind the front surface of the base body 51, and a gap is formed between the front surface of the base body 51 and an accessory is disposed.

The guide rail 53 includes an outer guide rail 63a and an inner guide rail 63b.
The outer guide rail 63a and the inner guide rail 63b are metal strip-shaped members formed in a substantially arc shape when viewed from the front. The outer guide rail 63a is disposed so as to go around the left and upper outer circumferences of the base 51. The inner guide rail 63b is arranged so as to go around the outer periphery on the left side and the lower side of the base body 51 inside the base body 51 relative to the outer guide rail 63a. The outer guide rail 63a and the inner guide rail 63b protrude forward from the front side of the base body 51 with the short direction as the front-rear direction.
Note that a region that is partitioned into a substantially circular shape by the outer guide rail 63a and the inner guide rail 63b at the approximate center of the base 51 is a game region 58 in which a game ball rolls. In addition, a launch area in which a game ball fired by the game ball launching device passes is a region formed in a substantially arc shape between the outer guide rail 63a and the inner guide rail 63b on the left side of the base 51. A passage 59 is provided. Then, in response to the turning operation of the launch handle 42, the game ball passes through the launch passage 59 and is released to the game area 58.

  The general winning opening 54 is a member that is formed in a pocket shape whose upper surface is open, and that allows a game ball to be won. When a game ball wins the general winning opening 54, a predetermined number of prize balls (game balls) are paid out by a prize ball payout device (not shown). A plurality of general winning ports 54 are arranged below the game area 58 in the base 51.

  The big winning device 55 is a device that opens the big winning port 65 and makes it possible to win a game ball when a big win is selected by the big win lottery. When a game ball wins the big winning opening 65, a predetermined number of prize balls (game balls) are paid out by the prize ball payout device. The big winning device 55 is arranged at the lower center of the game area 58 in the base 51.

  The variable winning device 56 is a device that switches to an open state in which a game ball can win a prize or a closed state in which a prize cannot be won according to the operation of a pair of left and right movable pieces when a predetermined operating condition is satisfied. When a game ball wins the variable winning device 56, a predetermined number of winning balls (game balls) are paid out by the winning ball payout device, and a big win lottery is started by a lottery device (not shown). The variable winning device 56 is disposed substantially above the game area 58 of the base 51 and above the big winning device 55.

  The out port 57 finally flows in when the game balls released through the launch passage 59 and released to the game area 58 do not win the winning ports such as the general winning port 54 and the big winning port 65. It is an opening. The game balls that have flowed into the out port 57 are collected at a game hall such as a pachinko hall. The out port 57 is arranged at the lowermost part of the game area 58 in the base 51.

  Next, the dot matrix display device 100 will be described with reference to FIGS.

  The dot matrix display 100 shown in FIGS. 2 to 4 is for displaying a design, a number, a character, etc. in a predetermined case to give a visual impression (impact) to the player. Specifically, the dot matrix display device 100 includes a frame 110, a smoke plate 121, a light diffusion sheet 122, a light transmission plate 130, a partition plate 140, and an LED substrate 150.

  The frame 110 shown in FIGS. 3 and 4 is a substantially rectangular plate-shaped member having a pattern on the front surface. In the center of the frame 110, a rectangular opening 110a penetrating the frame 110 in the front-rear direction is formed. On the rear surface of the frame body 110, a frame-shaped support portion 110b for fitting and supporting a smoke plate 121, a light diffusion sheet 122, a light transmission plate 130, and a partition plate 140, which will be described later, is provided.

  The smoke plate 121 is a rectangular plate-like member having translucency. The smoke plate 121 is made of a light-transmitting material such as acrylic or polycarbonate, and is set so that the light transmittance becomes a predetermined value by coloring or the like. The smoke plate 121 according to the present embodiment is colored green and has a predetermined light transmittance. In addition, the front surface (player side surface) of the smoke plate 121 is exposed to the player side through the opening 110a to form a display surface 120.

  The light diffusion sheet 122 is for transmitting the irradiated light while uniformly diffusing it. The light diffusion sheet 122 is formed in a rectangular sheet shape. The light diffusion sheet 122 is an embodiment of the “light diffusion layer” in the present invention.

  The translucent plate 130 is a rectangular plate-like member having translucency. The translucent plate 130 is made of a translucent material such as acrylic or polycarbonate. The translucent plate 130 according to the present embodiment is colorless and transparent and has a high light transmittance. In addition, the translucent plate 130 according to the present embodiment is formed so that the thickness thereof is h to be described later.

  The partition plate 140 shown in FIGS. 3 to 6 is a substantially rectangular plate-shaped member. As shown in FIGS. 5 and 6, the partition plate 140 is formed with a lattice-shaped partition wall 140 a. Specifically, the partition wall 140a has a predetermined thickness, a plurality of plates formed at predetermined intervals in the vertical direction with the longitudinal direction being the left-right direction, and the predetermined thickness, the longitudinal direction being the vertical direction As above, a plurality of plates formed at the predetermined intervals in the left-right direction are combined in a lattice shape. By the partition wall 140a configured in this manner, a large number of open portions 140b, 140b,... Having a square cross section and penetrating the partition plate 140 in the front-rear direction are formed at equal intervals vertically and horizontally.

  The LED substrate 150 shown in FIGS. 3 to 6 is formed in a substantially rectangular plate shape. A large number of light emitting diodes (hereinafter simply referred to as “LEDs”) 151, 151,... As light sources are disposed on the front surface (that is, on the same plane) of the LED substrate 150. LED151 * 151 ... is arrange | positioned at equal intervals up and down, right and left. More specifically, the LEDs 151, 151... Are arranged such that the distance between the centers of the adjacent LEDs 151, 151 is the same as the distance between the centers of the adjacent open portions 140b, 140b of the partition plate 140. The That is, LED151 * 151 ... is arrange | positioned corresponding to the formation position of open part 140b * 140b ....

  The smoke plate 121, the light diffusion sheet 122, the light transmissive plate 130, the partition plate 140, and the LED substrate 150 shown in FIG. 4 are arranged in this order from the front. The smoke plate 121, the light diffusion sheet 122, and the light transmissive plate 130 are fitted to the support portion 110 b of the frame body 110, and the LED substrate 150 is fixed to the frame body 110 from the rear of the partition plate 140.

  At this time, the partition plate 140 and the LED substrate 150 are positioned so that the LEDs 151, 151... Are positioned at the centers of the open portions 140b, 140b... Of the partition plate 140 in a front view (see FIG. 6A). And are positioned. Further, since the partition plate 140 and the LED substrate 150 are disposed in parallel, the open portions 140b, 140b,... Of the partition plate 140 are disposed perpendicular to the LED substrate 150. That is, the inner wall surface 140c constituting the open portions 140b, 140b... Is perpendicular to the LED substrate 150.

  Further, the rear side of the opening 140b is closed by the LED substrate 150. For this reason, when LED151 lights, the light from the said LED151 is irradiated ahead of the open part 140b currently open | released. In the following description, the front side is defined as “open side”.

  In the dot matrix display device 100 (see FIG. 7) configured as described above, when a desired LED 151 is turned on, the light from the LED 151 passes through the light transmitting plate 130 and is applied to the light diffusion sheet 122. The light is uniformly diffused by the light diffusion sheet 122 within the irradiation range of the light irradiated on the light diffusion sheet 122. The diffused light is applied to the smoke board 121 and is emitted and displayed on the display surface 120, so that the player can visually recognize it through the display surface 120. By arbitrarily selecting the LED 151 to be lit as described above, symbols, numbers, characters, etc. can be displayed on the display surface 120.

  Next, the positional relationship between the partition plate 140 and the light diffusion sheet 122 will be described in detail with reference to FIGS.

As shown in FIG. 7, hereinafter, the distance from the LED 151 to the partition wall 140a, more specifically, the distance from the LED 151 to the inner wall surface 140c of the opening 140b where the LED 151 is disposed is defined as a.
Further, b is defined as the difference between the distance from the front surface of the LED substrate 150 to the open side end of the partition wall 140a and the distance from the front surface of the LED substrate 150 to the open side end of the LED 151.
Further, the thickness of the partition 140a is defined as w.
In addition, an angle formed by a straight line connecting the open side end of the LED 151 and the partition 140a in the shortest and a straight line connecting the open side end of the LED 151 and the open end of the partition 140a in the shortest is defined as θ.
The distance from the open end of the partition wall 140a to the rear surface of the light diffusion sheet 122 is defined as h.

  For example, as shown in FIG. 8B, when h = 0, there is a shadow of the partition wall 140a between the lights of the adjacent LEDs 151 and 151 displayed on the display surface 120 (the hatched line in FIG. 8A). Part) is displayed. The thickness of the shadow at this time is substantially the same as the thickness w of the partition wall 140a. In this case, the translucent plate 130 is not provided.

  On the other hand, as shown in FIG. 7, the straight line L1 connecting the open side end of the LED 151 and the open side end of the partition wall 140a in the shortest and the open side end of the LED 151 adjacent to the LED 151 and the open side end of the partition wall 140a are connected in the shortest. The distance from the point P where the straight line L2 intersects to the open end of the partition wall 140a is defined as hmax.

  Then, as shown in FIG. 9B, when h = hmax or when h is larger than hmax, the shadow of the partition 140a is displayed between the lights of the adjacent LEDs 151 and 151 displayed on the display surface 120. This is not done (see FIG. 9A).

  Therefore, by arbitrarily setting h to a value satisfying the relational expression shown in Equation 2 below, that is, a value from 0 to hmax, the shadow of the partition wall 140a is displayed on the display surface 120, and the thickness of the shadow is set. The desired thickness can be adjusted.

(Equation 2)
0 <h <hmax

  Here, tan θ is expressed by the relational expression shown in Equation 3 below.

(Equation 3)
tan θ = (b + hmax) / (a + w / 2)

  Therefore, hmax is calculated by the relational expression shown in the following equation 4.

(Equation 4)
hmax = (a + w / 2) tan θ−b

  Substituting the above formula 4 into the above formula 2 yields the relational expression shown in the following formula 5.

(Equation 5)
0 <h <(a + w / 2) tan θ−b

  That is, the partition wall 140a and the display surface 120 (light diffusion sheet 122) are arbitrarily spaced apart from each other within the range satisfying the relational expression shown in Equation 5 above, while displaying the shadow of the partition wall 140a on the display surface 120. The thickness of the shadow can be adjusted to a desired thickness.

  In the present embodiment, a translucent plate 130 having a thickness h is disposed between the partition wall 140a and the display surface 120 (light diffusion sheet 122) (see FIG. 7). In this manner, by sandwiching the translucent plate 130 having a thickness h between the partition 140a and the display surface 120, the distance between the partition 140a and the display surface 120 can be easily adjusted to h.

  Next, the color scheme of the partition plate 140 will be described with reference to FIG.

  The partition plate 140 shown in FIG. 6 is a black resin member, and is usually manufactured by injection molding or the like using a mold. Among the partition walls 140a according to the present embodiment, the inner wall surface 140c constituting the open portions 140b, 140b, that is, the surface 140c that faces the LEDs 151, 151, ... when assembled as the dot matrix display 100, Painted white. Further, among the partition walls 140a, the end face 140d on the open side, that is, the surface 140d that faces the display unit 120 when assembled as the dot matrix display device 100 is left without being painted as it is (FIG. 6). The shaded part of

  With this configuration, when the dot matrix display 100 is viewed from the front, it is difficult to visually recognize the black partition 140a through the display surface 120 (specifically, the green smoke plate 121). Therefore, the beauty of the dot matrix display device 100 can be improved.

  Moreover, since it is difficult for the player to grasp the shape of the partition wall 140a when the LEDs 151, 151,... Are not lit, it is difficult to predict how the display surface 120 shines when the LEDs 151, 151,. . Thereby, when the LEDs 151, 151... Are lit, the impression that the dot matrix display device 100 gives to the player can be strengthened.

  In addition, the surface 140c of the partition wall 140a that faces the LEDs 151, 151,... Is painted white, so that the light from the LEDs 151, 151,. Therefore, it is possible to prevent the light applied to the display surface 120 from being attenuated, and as a result, it is possible to brighten the light of the LEDs 151, 151... That can be seen through the display surface 120.

  In addition, since the partition plate 140 is formed using a black material, the light of the LED 151 is difficult to transmit through the partition wall 140a. That is, the light of the LED 151 is difficult to transmit to the open portion 140b adjacent to the open portion 140b where the LED 151 is disposed. Thereby, when visually recognizing via the display part 120, the open part 140b in which LED151 is lit and the open part 140b which is not lit can be sharpened.

Note that the surface 140c facing the LEDs 151, 151,... Is not limited to white, but can be a relatively light color that easily reflects the light from the LEDs 151, 151,.
In addition, the surface 140d facing the display unit 120 is not limited to black, but may be a color with relatively low brightness that is difficult to visually recognize via the display surface 120. At least the brightness of the surface 140d facing the display unit 120 is set lower than the brightness of the surface 140c facing the LEDs 151, 151.
Further, the surface 140d facing the display unit 120 is not limited to black, but may be a color that is difficult to visually recognize via the display surface 120 according to the color of the display surface 120 (specifically, the color of the smoke plate 121). Is possible.

As described above, the dot matrix display 100 according to the present embodiment is
A plurality of LEDs 151, 151... (Light source) arranged at equal intervals on the same plane;
A partition wall 140a that partitions the plurality of LEDs 151, 151,... At equal intervals, and has open portions 140b, 140b,.
A light diffusion sheet 122 that is disposed on the open side (front side) of the partition wall 140a and diffuses and transmits the light from the LEDs 151, 151.
A dot matrix display 100 that emits and displays light by light diffused and transmitted through the light diffusion sheet 122,
The distance h from the open side end of the partition wall 140a to the light diffusion sheet 122 is
The distance a from the LED 151 to the partition 140a, the difference b between the distance from the plane to the open end of the partition 140a and the distance from the plane to the open end of the LED 151, the thickness w of the partition 140a, and the open side of the LED 151 Based on the angle θ formed by the straight line connecting the end and the partition 140a with the shortest distance and the straight line connecting the open side end of the LED 151 and the open side end of the partition 140a with the shortest distance, the relationship between the partition 140a and the light is satisfied. The diffusion sheet 122 is spaced apart.
With such a configuration, the thickness of the shadow of the partition 140a appearing in the light-displayed characters or figures can be made thinner than the thickness of the partition 140a. Further, by adjusting the distance h within the range of the above formula 5, the thickness of the shadow of the partition wall 140a appearing in the light-displayed characters or figures can be easily adjusted to a desired thickness. Further, complicated positioning is unnecessary, and the assembling work can be easily performed. Further, a member having a complicated shape such as a lens is unnecessary, and the cost can be reduced. Moreover, since it is not necessary to reduce the thickness of the partition 140a itself, it is not difficult to manufacture the partition 140a (partition plate 140).

In addition, the dot matrix display device 100 according to this embodiment includes:
The light-transmitting plate 130 is disposed between the partition wall 140a and the light diffusion sheet 122 and has a light-transmitting thickness h.
By comprising in this way, the distance of the partition 140a and the light-diffusion sheet 122 can be easily adjusted to h. Therefore, complicated adjustment is unnecessary, and the assembling work can be easily performed.

The brightness of the open end surface 140d of the partition wall 140a is set lower than the brightness of the surface 140c of the partition wall 140a facing the LED 151.
With this configuration, when the dot matrix display 100 is viewed from the display side (player side), the shape of the partition wall 140a is difficult to visually recognize. Therefore, it is possible to improve the aesthetics of the dot matrix display 100 and to make it difficult to predict the range in which the LEDs 151, 151.

In addition, as a light source, it is possible to use the apparatus which can radiate | emit light other than LED151.
The light diffusing layer is not limited to the light diffusing sheet 122 and may be any material that can diffuse and transmit the light from the LED 151. For example, instead of providing the light diffusion sheet 122, the surface of the smoke plate 121 on the LED 151 side may be formed with a rough surface and roughened, and the roughened surface may be used as the light diffusion layer of the present invention.

  Moreover, as a partition, the partition 240a which forms the square open part 240b * 240b ... which respectively turned the vertex to the top, bottom, left, and right in front view (refer FIG. 10 (a)), front view (refer FIG.10 (b)). ), The partition walls 340a that form the open portions 340b, 340b,... Of the equilateral triangle, and the partition walls 440a that form the open portions 440b, 440b,. Is possible.

  1: gaming machine, 100: dot matrix display, 120: display surface, 121: smoke plate, 122: light diffusion sheet (light diffusion layer), 130: light transmission plate, 140: partition plate, 140a: partition wall, 140b: Open part, 150: LED substrate, 151: Light emitting diode (LED) (light source)

Claims (3)

A plurality of light sources arranged at equal intervals on the same plane;
Partitioning the plurality of light sources at equal intervals, and a partition wall having an open portion in a direction perpendicular to the plane;
A light diffusion layer that is disposed on the open side of the partition wall and diffuses and transmits light from the light source;
A dot matrix display that emits and displays light by diffusing and transmitting through the light diffusion layer,
The distance h from the open end of the partition wall to the light diffusion layer is
A distance a from the light source to the partition, a difference b between a distance from the plane to the open end of the partition and a distance from the plane to the open end of the light source, a thickness w of the partition, and the light source Based on an angle θ formed by a straight line connecting the open side end of the light source and the partition wall in the shortest direction and a straight line connecting the open side end of the light source and the open side end of the partition wall so as to satisfy the relationship shown in the following equation (1) The partition and the light diffusion layer are spaced apart from each other.
Dot matrix display.
(Equation 1)
0 <h <(a + w / 2) tan θ−b A translucent plate having a thickness h and disposed between the partition wall and the light diffusion layer and having translucency;
The dot matrix display according to claim 1. The brightness of the open end surface of the partition is set lower than the brightness of the surface of the partition facing the light source,
The dot matrix display according to claim 1 or 2.

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