JP2568842Y2 - display - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display capable of changing a display color.

[0002]

2. Description of the Related Art Conventionally, for example, in a pachinko game machine, when a pachinko ball shot on the board wins a winning opening, a three-digit random number is displayed on a display and the number is replaced with a predetermined number. In some cases, a special prize state in which the winning probability is extremely high is exhibited.

In this case, a color liquid crystal display or a two-color LED display is used as a display.
For example, when a two-digit number out of three digits is in a reach state that matches the combination of numbers that will be in the special prize state, the color of the number displayed on the display is changed to give the player a reach state. It is trying to inform you that it has become. In addition, a backlight that generates light of a predetermined color different from the display color is provided,
When the state changes from the reach state to the special prize state, the backlight is blinked and the background color of the number is displayed to excite the excitement of the player. In this case, the backlight for the two-color LED is arranged on the front side of the printed wiring board on which the two-color LED is mounted.

[0004]

However, the color liquid crystal display is expensive and causes the cost of the pachinko game machine to be high. Further, when the backlight is blinked in the two-color LED display, the background color of the number is simply displayed, and the number displayed on the display is limited to the color determined by the two-color LED. Therefore, there is a disadvantage that the backlight is not used effectively.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a display device capable of changing a display color by a display element by effectively using a backlight at low cost. .

[0006]

According to the present invention, there is provided a colorless printed wiring board having a light transmitting property, and a plurality of display elements which are scattered at predetermined positions on the surface of the printed wiring board and generate light of a predetermined wavelength. And a backlight that generates light having a wavelength different from the wavelength of light from the display element is provided on the back side of the printed wiring board, and a diffusion plate is provided on the front side of the printed wiring board. .

Further, a printed wiring board of a predetermined color having a light transmitting property is provided, and light having a wavelength different from the wavelength of light passing through the printed wiring board is scattered at a predetermined position on the surface of the printed wiring board. A plurality of display elements, a backlight for generating white light may be provided on the back side of the printed wiring board, and a diffusion plate may be provided on the front side of the printed wiring board.

[0008]

In the display device according to the first aspect, when the display element generates light, a predetermined shape is displayed in a predetermined color on the diffusion plate.

Then, when the backlight generates light,
Light having a wavelength different from the wavelength of light from the display element is emitted from the backlight to the diffusion plate through the printed wiring board. Accordingly, the diffuser is irradiated with light of different colors from the display element and the backlight, and a predetermined shape is displayed with a color in which both lights are mixed.

In the case of the display device according to the second aspect, when the display element generates light, a predetermined shape is displayed on the diffusion plate in a color different from the display color of the display element.

Then, when the backlight generates white light, the white light from the backlight passes through the printed wiring board. At this time, since the printed wiring board has a predetermined color, the light passing through the printed wiring board becomes a predetermined color and is applied to the diffusion plate. Accordingly, the diffuser plate is irradiated with light of different colors passing through the display element and the printed wiring board, so that a predetermined shape is displayed in a color different from the display color of the display element.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment in which the present invention is applied to a display of a pachinko game machine will be described below with reference to FIGS. FIG. 5 shows a pachinko game machine. In FIG. 5, the pachinko game machine 1 is provided with a board 2, and an indicator 3 is provided substantially at the center of the board 2.
The display 3 is provided for displaying a three-digit number when a prize is generated.

FIGS. 1 to 4 show the structure of the display unit 3. In FIGS. 1 to 4, the printed wiring board 4 is formed of a colorless substrate having a light transmitting property, and on its surface, as shown in FIG. Three groups are arranged with the columns as one group, and three groups of red LEDs 5 display three-digit numbers. The LED 5 is formed by covering a semiconductor pellet mounted on a lead frame with a transparent resin, and is fixed by soldering the lead frame to a wiring pattern of a printed wiring board. In this case, each LE
D5 is individually turned on by a drive signal from a control device (not shown).

A printed wiring board 6 is disposed on the back side of the printed wiring board 4 at a predetermined distance, and a plurality of fluorescent tubes 7 serving as a backlight are arranged on the printed wiring board 6 as shown in FIG. ing. In this case, the fluorescent tube 7
Are arranged as a set in opposition to one group of the LEDs 5, and emit green light in a lighting state by the control device.

A diffusion plate 8 is provided on the front side of the printed wiring board 4 at a predetermined distance. The diffuser 8 diffuses and radiates the incoming light.

Next, the operation of the above configuration will be described. When a winning occurs, the control device generates a three-digit random number, and turns on the LED 5 corresponding to the three-digit number. As a result, red light is generated from the LED 5, and a three-digit number appears in red on the diffusion plate 8. At this time, when the generated three-digit number is a predetermined combination of numbers, the control device turns on the fluorescent lamp 7 and operates the electric accessory to generate a special prize state.

When the fluorescent lamp 7 is turned on as described above, the fluorescent lamp 7 emits green light. At this time,
The light from the fluorescent lamp 7 passes through the printed wiring board 4 and irradiates the diffusion plate 8.
Since green light is radiated to the whole in addition to red light from
A three-digit number is displayed with a green background in purple with a mixture of red and green. Therefore, the player can confirm that the special prize has occurred by changing the color of the number displayed on the display 3.

According to the above configuration, the fluorescent tube 7 that emits light of a color different from the emission color of the LED 5 is provided on the back side of the printed wiring board 4 on which the LED 5 is mounted, so that the display on the diffusion plate 8 is achieved. Since the colors of the numbers are changed, it is possible to realize a configuration in which the display color of the display 3 is changed at a lower cost than in the conventional example using two-color LEDs.

FIG. 6 shows a second embodiment of the present invention, in which the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted. Only different parts will be described. That is, the first
The difference from the embodiment is that the printed wiring board 4 on which the LEDs 5 are mounted is colored green with a light projecting property, and a fluorescent lamp that emits white light as a backlight on the back side of the printed wiring board 4. 9 is provided.

In the case of the second embodiment, when the white light from the fluorescent lamp 9 passes through the printed wiring board 4, only the green color passes and irradiates the diffusion plate 8, so that the white light is diffused by turning on the fluorescent lamp 9. The number displayed on the board 8 can be changed from red to purple. Thereby, similarly to the first embodiment, the display color of the display 3 can be changed at low cost.

In the above-described embodiment, a two-color LED is used as a display element.
May be used. Alternatively, a plurality of printed wiring boards on which LEDs are mounted may be stacked, and a backlight may be arranged on the back side. Further, as the backlight, fluorescent tubes that emit light of different colors may be alternately arranged, and the lighting of these fluorescent tubes may be controlled to generate multiple colors as the backlight. .

[0022]

As is apparent from the above description, according to the display of the present invention, the backlight is turned on so that light having a wavelength different from the wavelength of light from the display element is irradiated to the diffusion plate. Therefore, there is an excellent effect that the display color of the display element can be changed by effectively using the backlight at low cost.

[Brief description of the drawings]

FIG. 1 is an exploded front view showing a display device according to a first embodiment of the present invention;

FIG. 2 is a plan view of the display.

FIG. 3 is a front view of the printed wiring board showing the arrangement of the fluorescent lights.

FIG. 4 is a front view of a printed wiring board showing an arrangement state of display elements.

FIG. 5 is a front view of the pachinko game machine.

FIG. 6 is a view corresponding to FIG. 2, showing a second embodiment of the present invention;

[Explanation of symbols]

Reference numeral 3 denotes a display, 4 denotes a printed wiring board, 5 denotes an LED (display element), 7 denotes a fluorescent tube (backlight), and 8 denotes a diffusion plate.

Claims (2)

(57) [Scope of request for utility model registration] 1. A colorless printed wiring board having a light transmitting property, a plurality of display elements scattered at predetermined positions on a surface of the printed wiring board to generate light of a predetermined wavelength, and a back side of the printed wiring board. A display, comprising: a backlight disposed to generate light having a wavelength different from the wavelength of light from the display element; and a diffusion plate disposed on a front side of the printed wiring board. 2. A printed wiring board of a predetermined color having light transmissivity, and a plurality of light emitting devices that are scattered at predetermined positions on the surface of the printed wiring board and generate light having a wavelength different from the wavelength of light passing through the printed wiring board. A display device comprising: a display element according to (1), a backlight disposed on the back side of the printed wiring board to generate white light, and a diffusion plate disposed on the front side of the printed wiring board.