JP5244040B2 - Game machine - Google Patents

Description

  The present invention relates to a gaming machine including a liquid crystal display device that displays an effect image.

  For example, in a pachinko gaming machine that uses a game ball as a game medium, a center case having a liquid crystal display device is generally provided in a game area in which a game ball fired by a launching device rolls down. In this liquid crystal display device, various effect images are displayed according to the gaming state, and the interest of the player is improved. Here, the liquid crystal display device has a backlight disposed behind the liquid crystal display panel, and displays the image on the liquid crystal display panel by illuminating the liquid crystal display panel with illumination of the backlight. is there.

  By the way, in a liquid crystal display device disposed in a gaming machine such as the pachinko gaming machine described above, for example, in Patent Document 1, the amount of light of the backlight is increased when the illuminance of the game hall is bright, and when it is dark. A configuration that is controlled to be low has been proposed. In such a configuration, the brightness of the screen (liquid crystal display panel) is controlled by the liquid crystal display device so as to match the illuminance of the game hall, so that it is possible to make it difficult for the player who looks at the screen to feel tired. The effect of concentrating on can be produced.

JP 2006-34867 A

  In the configuration in which the light amount of the backlight of the liquid crystal display device is changed in accordance with the illuminance of the game hall as in the conventional configuration described above, when the illuminance of the game hall becomes dark, the light amount of the backlight is changed. Since it is lowered, the screen (liquid crystal display panel) of the liquid crystal display device becomes dark, so that the color change of the image displayed on the screen becomes gradual, and the image looks blurry. On the other hand, since the screen of the liquid crystal display device of the pachinko gaming machine displays various information related to the player's gain as effect images, the player pays the most attention during the game. In the conventional configuration, when the timing when the screen of the liquid crystal display device becomes dark due to a decrease in the amount of light of the backlight accompanying a decrease in the illuminance of the game hall is during the display of an effect image related to the player's gain, It is easy to mistake the brightness change as an effect in which the player cannot obtain a gain.

  In particular, in a recent pachinko machine, a configuration is known in which an effect of notifying a hit or a loss is performed during an effect (a reach effect or the like) leading to a hit or a loss. In such a configuration, for example, when a reach effect image that is expected to win is displayed on the liquid crystal display device, if the effect image changes to a blurred state as described above, the player misidentifies that the effect is a loss notice effect. It is easy to do so, and the expectation for the hitting may be lost before the hit or the loss is determined. That is, the reach effect image for increasing the expectation of hitting becomes meaningless by the control for reducing the backlight. As described above, depending on the gaming state, there is a concern that reducing the amount of light of the backlight of the liquid crystal display device may reduce the interest of the game.

  The present invention proposes a gaming machine that can maintain the fun of the game even if the amount of light of the backlight of the liquid crystal display device is reduced.

  The present invention relates to a gaming machine comprising a liquid crystal display device that displays an effect image on the liquid crystal display panel by illuminating the liquid crystal display panel with a backlight, and display processing control means for driving and controlling the liquid crystal display device. An illuminance detection sensor for detecting illuminance is provided on the front side of the base, and the display processing control means is determined for the illuminance detected by the illuminance detection sensor, and divides the brightness on the front side of the machine base in order of brightness. A plurality of brightness classes, a predetermined set light quantity value assigned to each brightness class so as to reduce the light quantity of the backlight according to the decrease in the brightness class, and the liquid crystal display panel according to the decrease in the brightness class A predetermined set contrast value assigned to each brightness class is set in advance so as to improve the contrast, and determined by the illuminance detected by the illuminance detection sensor. In accordance with the brightness class, the backlight light quantity is adjusted and controlled by the set light quantity value assigned to the brightness class, and the contrast of the liquid crystal display panel is adjusted and controlled by the set contrast value assigned to the brightness class. The game machine is characterized in that it has a light amount adjustment processing content.

  Here, as the brightness class, for example, it is set to a second class of “bright” class and “dark” class higher than a predetermined brightness threshold, or to be divided into multiple classes such as a third class and a fourth class. be able to. As the plurality of brightness classes, each class can be classified by setting one or a plurality of threshold values that are the boundaries thereof. Further, the brightness class is set in advance so that the illuminance detected by the illuminance detection sensor is applied to any one of the brightness classes. For example, the brightness class is set to be classified within the change range of the illuminance detected during the store opening hours (the range between the maximum illuminance and the minimum illuminance) at the game hall where the game machine is installed. The configuration described above is preferable.

  In such a configuration, the amount of light and the contrast of the backlight are determined according to the predetermined light intensity value and the set contrast value assigned to the brightness class according to the brightness class predetermined for the illuminance detected by the illuminance detection sensor. Are adjusted and controlled. For example, when the brightness class to which the illuminance falls due to a decrease in illuminance, the backlight light quantity is reduced according to the set light quantity value of the brightness class, and the contrast is improved according to the set contrast value. I do. As a result, even if the brightness of the liquid crystal display panel is reduced due to a reduction in the amount of light from the backlight, the effect image can be clearly seen by improving the contrast, so that the effect image displayed on the liquid crystal display panel is apparently displayed. Can keep the brightness. Therefore, it is possible to suppress the effect image displayed on the liquid crystal display panel from being blurred, and to make it difficult for the player to understand the brightness reduction due to the light amount reduction of the backlight. Therefore, as in the conventional configuration described above, the brightness of the liquid crystal display panel is reduced due to a decrease in the amount of light from the backlight, and the effect image changes to a blurred state. The configuration of the present invention does not cause a problem of misunderstanding.

  Further, in the liquid crystal display device, since the power consumption required for the backlight is large, reducing the amount of light of the backlight as described above has a high effect on power saving, and the configuration of the present invention is as follows. It has an excellent effect on energy saving. In particular, amusement arcades where pachinko machines and slot machines are installed have relatively high illuminance due to the lighting in the venue, so that the effect image is clear even on liquid crystal display devices. The amount of light of the backlight is set high so that it is displayed on the screen. In such a game hall, when the illuminance is reduced due to changes such as day and night or weather, the gaming machine of this configuration can exert the above-mentioned energy saving effect by reducing the light amount of the backlight. In this configuration, as described above, the apparent brightness reduction can be suppressed by improving the contrast even when the light amount of the backlight is reduced, so that both energy saving and the effect of suppressing the brightness reduction of the liquid crystal display panel are achieved. it can.

  In this configuration, as the set light amount value and the set contrast value respectively assigned to each brightness class, the absolute value of the backlight light amount and the absolute value of the contrast may be set respectively. It can also be set as a value indicating a ratio or a change amount for changing the contrast.

  In the gaming machine described above, the display processing control means presets a set light amount increase / decrease value for increasing / decreasing the backlight light amount, and adjusts the backlight light amount according to the set light amount increase / decrease value when a specific gaming state is reached. A configuration including a game light amount adjustment process to be controlled is proposed.

  Here, the content of the game light amount adjustment process to be executed when a specific gaming state is reached is controlled to be executed in preference to the content of the light amount adjustment process for adjusting and controlling the light amount and contrast of the backlight according to the illuminance. To do. In other words, when a specific gaming state is reached while being adjusted according to the light amount adjustment processing content, the backlight light amount is adjusted and controlled according to the set light amount increase / decrease value according to the game light amount adjustment processing content. Further, as the set light amount increase / decrease value, it is preferable to set the change in the brightness of the liquid crystal display panel that occurs according to the set light amount increase / decrease value so as to be easily understood by the player in a specific gaming state.

  In such a configuration, when entering a specific gaming state, the brightness of the liquid crystal display panel changes as described above, and accordingly, the player's emotions can be efficiently undulated. It is possible to improve interest. As described above, the present invention suppresses the change in brightness on the liquid crystal display panel by changing the light amount and contrast of the backlight according to the illuminance, so that the liquid crystal becomes a specific gaming state. When the brightness of the display panel changes, the effect of strongly impressing the change to the player is high, and the effect of improving interest is also excellent. As the specific gaming state, for example, in the case of a pachinko gaming machine, it is possible to set a reach state, a big hit state, or a state where a specific effect image foreseeing the big hit is displayed. . When a plurality of specific game states are set, different set light amount increase / decrease values can be set for each.

  As the set light amount increase / decrease value, an absolute value of the light amount of the backlight may be set, or a change amount or a ratio value for increasing / decreasing may be set. In addition, when the gaming state is advantageous to the player or when the gaming state is informed of the advantageous state, the light amount is adjusted and controlled by the set light amount increase / decrease value set so that the light amount of the backlight is improved. On the other hand, in the case of a gaming state that is not advantageous or a gaming state that is not advantageous, the light amount is adjusted and controlled by a set light amount increase / decrease value that is set so that the light amount of the backlight decreases. May be. Here, either a set light amount increase / decrease value for improving the light amount of the backlight or a set light amount increase / decrease value for decreasing the light amount of the backlight may be set, or both may be set as described above.

  Furthermore, it is preferable that the game light amount adjustment processing content is controlled so that the light amount of the backlight adjusted and controlled by the set light amount increase / decrease value is continued for a predetermined period according to the game state. The predetermined period to be continued may be a relatively short time, and after that time, the light amount adjustment processing content that is adjusted and controlled according to the illuminance may be executed. Further, it may be set so as to continue until the end of a specific gaming state, and the above-described light amount adjustment processing content may be executed when the gaming state ends.

  In the gaming machine described above, the display processing control means presets a set contrast increase / decrease value for increasing / decreasing the contrast, and adjusts and controls the contrast of the liquid crystal display panel according to the set contrast increase / decrease value when a specific gaming state is reached. A configuration having contrast adjustment processing content is proposed.

  Even in such a configuration, as in the case where the set light amount increase / decrease value is set, the contrast adjustment processing content is prioritized over the light amount adjustment processing content, and when the specific gaming state is reached, the set contrast is set. The contrast is changed according to the increase / decrease value to change the apparent brightness of the liquid crystal display panel. Thereby, when it becomes a specific game state, since a player's emotion can be raised and lowered effectively, the interest property of a game can be improved.

  Here, as the set contrast increase / decrease value, it is preferable to set the change in the brightness of the liquid crystal display panel caused by the set contrast increase / decrease value so that the player can easily understand, similarly to the above-described set light intensity increase / decrease value. The set contrast increase / decrease value can be set based on the absolute value, ratio, change amount, etc. of contrast. Further, when a plurality of specific game states are set, it is possible to set different set light amount increase / decrease values. The contrast adjustment processing content is preferably controlled so that the contrast adjusted and controlled by the set contrast increase / decrease value is continued for a predetermined period according to the gaming state, as in the case where the set light intensity increase / decrease value is set. It is.

  In the gaming machine described above, a light amount adjustment volume for adjusting the light amount of the backlight of the liquid crystal display device by remote control is provided, and the display control means adjusts the light amount of the backlight according to the operation of the light amount adjustment volume. A control process for reducing the contrast and increasing the contrast of the liquid crystal display panel according to the decrease in the light quantity, or a control process for increasing the light quantity of the backlight and reducing the contrast of the liquid crystal display panel according to the improvement in the light quantity. A configuration is proposed that includes the contents of remote adjustment processing to be performed.

  Here, since the light amount adjustment volume is disposed so as to be remotely operated, the player cannot operate it, but is operated by the game hall side. For this reason, the game hall side can change the light amount of the backlight by operating this light amount adjustment volume based on its own judgment, so that it is possible to appropriately save energy by reducing the light amount. . Since the adjustment control is performed so as to improve the contrast in accordance with the control for reducing the light amount of the backlight, a change in the apparent brightness of the liquid crystal display panel can be suppressed. For this reason, the operation and effect similar to those in the case of the control accompanying the change in the brightness class described above can be achieved by operating the light amount adjustment volume.

  Even in this configuration, the remote adjustment processing content by the light amount adjustment volume is executed with priority over the light amount adjustment processing content by illuminance. Thereby, the light quantity and contrast of a backlight can be changed reliably by operation of a light quantity adjustment volume.

  As described above, the gaming machine of the present invention adjusts and controls the light amount of the backlight of the liquid crystal display device according to the set light amount value assigned to the brightness class according to the brightness class to which the illuminance detected by the illuminance detection sensor applies. Since the contrast of the liquid crystal display panel of the liquid crystal display device is adjusted and controlled by the set contrast value assigned to the brightness class, for example, when the brightness class decreases due to a decrease in illuminance, By performing adjustment control that reduces the amount of backlight light and improves contrast, the brightness of the effect image displayed on the liquid crystal display panel can be apparently maintained before and after the adjustment control. Similarly, the brightness of the liquid crystal display panel can be apparently maintained even when the backlight light quantity improvement and the contrast reduction are adjusted and controlled as the illuminance increases. Therefore, even if the amount of light of the backlight is changed according to the change in illuminance, it is difficult for the player to recognize this, so that the player's emotion can be prevented from being undulated due to the change. It can maintain the interest of Further, since the power consumption of the backlight can be reduced by the reduction in the light amount of the backlight accompanying the decrease in illuminance, excellent energy saving can be achieved.

  In the above-mentioned gaming machine, in the case of a configuration in which the light amount of the backlight is adjusted and controlled according to the set light amount increase / decrease value when the specific gaming state is reached, the light amount of the backlight changes when the specific gaming state is reached. By changing the brightness of the liquid crystal display panel, it is possible to emphasize the fact that the game state has been reached and to let the player know, so that the player's emotion can be effectively undulated And can improve the fun of the game.

  In the above-described gaming machine, in a configuration in which the contrast of the liquid crystal display panel is adjusted and controlled according to the set contrast increase / decrease value when a specific gaming state is reached, when the specific gaming state is reached, according to the set contrast increase / decrease value By changing the contrast, the apparent brightness of the liquid crystal display panel is changed, so that it is possible to emphasize the fact that the game state has been reached and to let the player know the effect of the player. Can be raised and lowered, and the fun of the game can be improved.

  In the above-described gaming machine, by remotely operating the light amount adjustment volume, the control for reducing the light amount of the backlight and improving the contrast according to the light amount reduction, and improving the light amount of the backlight and contrast according to the light amount improvement. In the case of a configuration in which the control is performed to reduce the light amount, the light amount of the backlight can be adjusted by operating the light amount adjustment volume on the game hall side, so that the light amount of the backlight is reduced. By performing the operation, energy saving can be appropriately performed. In addition, since the contrast is adjusted in accordance with the backlight light amount adjustment, the apparent brightness of the liquid crystal display panel can be maintained, so that the player's emotions are accompanied by the backlight light amount adjustment by the game hall side. Can be suppressed, and the interest of the game can be properly maintained.

1 is a perspective view of a pachinko gaming machine 1. FIG. 1 is a front view of a game board 10 provided in a pachinko gaming machine 1. FIG. It is a block diagram which shows the control circuit which controls a game. It is a flowchart which shows the light quantity adjustment process which adjusts and controls the light quantity and contrast of the backlight 42 according to the illumination intensity detected by the illumination intensity detection sensor 48. FIG. FIG. 5 is a flowchart showing a process of adjusting and controlling the light amount and contrast of the backlight 42 in the reach game state and the special game state in the light amount adjustment process of FIG. 4. It is a flowchart which shows the remote adjustment process which adjusts and controls the light quantity and contrast of the backlight 42 according to the rotation angle of the light quantity adjustment volume 50. FIG.

Embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIG. 1, the pachinko gaming machine 1 includes an outer frame 2 fixed to a game island facility (not shown) and a gaming machine main body 3 that covers a front opening of the outer frame 2. The gaming machine main body 3 includes a front frame 5 in which a game board 10 (see FIG. 2) is attached to a substantially circular opening at the upper center, and one side edge of the front frame 5 is connected to the outer frame via the hinge member 4. It is pivotally attached to 2 so that it can be opened and closed. Further, the front frame 5 is provided with a glass plate 6 that covers the game board 10. In addition, an upper tray 7 and a lower tray 8 are vertically arranged at the lower portion of the front frame 5, and a launching handle 9 is projected on the right side of the lower tray 8.

  FIG. 2 is a front view of the game board 10 described above. A substantially circular game area 12 is defined by a guide rail 11 on the front surface of the game board 10, and a center case 13 incorporating various game members is disposed in the center of the game area 12. A liquid crystal display device 14 is assembled to the center case 13. The liquid crystal display device 14 displays various effect images on its screen (liquid crystal display panel 41).

  Note that special symbols A, B, and C are also displayed on the screen of the liquid crystal display device 14. The special symbols A, B, and C start to fluctuate when a game ball flows into a starting port 22 of the variable prize winning device 21 described later, and then hit or lose according to a stop symbol pattern consisting of a combination of each special symbol stopped. Determine. When the winning stop symbol pattern is confirmed and displayed, a special game operation is performed to open and close a special winning opening 26, which will be described later, to obtain a large number of winning balls from the gaming balls that have won the special winning opening 26. Can do. Since this special game operation can obtain a large amount of prize balls, the special symbol A, B, C hit stop pattern mode leading to the execution of the special game operation is most desired by the player. Here, in this embodiment, the special game state is set between the time when the special symbol A, B, and C are determined and displayed and the special game operation is terminated.

  Normal symbol start gates (normal symbol start regions) 19 and 19 are disposed on the left and right sides of the center case 13, and the normal symbol start provided on each normal symbol start gate 19 by the passing of the game ball. When a game ball detection signal is generated from the switch S2 (see FIG. 3), a normal symbol (not shown) fluctuates on the display screen of the liquid crystal display device 14, and stops after a predetermined time and various symbol patterns are displayed. Is done.

  Also, below the center case 13, a variable winning device 21 having a start port 22 through which game balls can flow and a pair of left and right opening / closing wing pieces (not shown) is disposed. A special symbol start switch S1 (see FIG. 3) for detecting a game ball is disposed inside the start port 22. According to the detection of the game ball by the special symbol start switch S1, a liquid crystal display is provided as described above. The special symbols A, B, C are started to change on the screen of the device 14. Also, the pair of left and right open / close wing pieces are raised in a vertical direction so that a single game ball can be won from above, and the game ball is expanded in an inverted C shape from both sides to the left and right sides. It is converted and driven to a tilting position that makes it easy to win. When the display result of the normal symbol (not shown) is a predetermined hit symbol, the opening / closing blade piece tilts for a predetermined time (about 0.2 seconds) with the normal electric accessory solenoid (not shown) as the drive source. The game ball is easily expanded into the start port 22 by being expanded to the position.

  Further, a special electric accessory 25 having a large winning opening 26 is disposed below the variable winning device 21. The special electric accessory 25 has a horizontally long rectangular opening / closing piece 27, and the opening / closing piece 27 is controlled to be opened / closed by a built-in large winning opening solenoid (not shown), so that the big winning opening 26 is opened or closed. Is converted to When the special symbols A, B, and C variably displayed on the screen of the liquid crystal display device 14 are fixedly displayed in a predetermined hit stop pattern mode (in the case of a big win), the special electric accessory 25 is a big prize opening. The special game operation is executed by opening and closing the 26. In the special game operation, the opening / closing piece 27 is tilted forward and opened, and in the opened state, the game ball is guided into the big winning opening 26 through the guiding action on the upper surface of the opening / closing piece 27 and a predetermined opening time (for example, 30 seconds), or a predetermined number (for example, 9) of game balls during the predetermined opening time, the open / close piece 27 stands and the grand prize opening 26 is closed. (In the embodiment, 15 times), a large amount of game balls are won in the big prize opening 26, and a predetermined profit is provided to the player. A count switch S3 (see FIG. 3) for detecting a winning game ball is provided inside the special electric accessory 25.

  In addition, the game area 12 is provided with a plurality of general winning ports 58, and a predetermined number of prizes are awarded in accordance with the winning detection of the game ball by the general winning switch S4 (see FIG. 3) provided therein. The ball is paid out.

Next, the control circuit of the pachinko gaming machine 1 described above will be described with reference to the block diagram shown in FIG.
The control circuit includes a main control board 80, a payout control board 81, an effect control board 82, a power supply board 83, and a launch control board 84. The main control board 80 is constituted by a microcomputer and controls the game of the pachinko gaming machine 1 in an integrated manner. On the main control board 80, various switches such as the special symbol start switch S1, the normal symbol start switch S2 and the count switch S3 described above, and various sensors such as an illuminance detection sensor 48 which will be described later are provided via the panel surface relay terminal plate 90. Connected.

  The main control board 80 includes a central control unit CPU that executes arithmetic processing according to input signals from various switches and sensors and outputs predetermined command signals, a storage device ROM that stores control programs used for arithmetic processing, and the like. A storage device RAM that can read and write various data at any time is connected via an address bus (not shown) that unilaterally transmits information for designating an address for reading and writing data, and a data bus (not shown) that exchanges data Thus, a substrate circuit of the main control board 80 is configured. The storage device ROM includes a control program, a normal hit random number table, a normal hit symbol random number table, a big hit special random number table, a big hit symbol random number table, a lost symbol random number table, a reach random number table, a reach symbol random number table, a reach mode random number table. The fixed data such as is stored. Then, as will be described later, when the game ball flows into the start port 22 and the special symbol start switch S1 is turned ON, the central controller CPU draws random numbers in the random number table, and the big hit special random number value and the big hit symbol A random number value, a lost symbol random value, a reach random number value, a reach symbol random value, a reach mode random value, etc. are selected. The storage RAM also has a storage area for temporarily storing the number of ON operations of the special symbol start switch S1 and the normal symbol start switch S2, etc., a register area constituting the soft timer, a work area, and the like. .

  Further, the board circuit of the main control board 80 is provided with a clock device (not shown) that outputs a predetermined clock pulse, and is connected to the central control unit CPU. The central control unit CPU performs arithmetic processing in time series by using clock pulses at regular intervals, and sequentially executes a series of processing operations. In addition, a timer TM that counts clock pulses output by the clock device and measures time is also connected.

  Further, the board circuit of the main control board 80 is provided with an input port (not shown) and an output port (not shown) through which the central control unit CPU performs data communication with peripheral devices, via the output port. Command signals from the main control board 80 are transmitted to the input ports of the payout control board 81, the effect control board 82, and the launch control board 84. Also, a special symbol start switch S1, a normal symbol start switch S2, a count switch S3, and a general winning switch S4 are connected to the input port of the main control board 80 via a panel surface relay terminal plate 90. The main control board 80 checks the game ball detection state of each of the switches S1 to S4 every predetermined time (for example, every 2 ms), and when there is a signal input, the signal is waveform-shaped by the waveform shaping circuit and the central control unit CPU And the information is stored in the storage device RAM. The output port of the main control board 80 is connected to a large winning opening solenoid and a normal electric accessory solenoid via a panel relay terminal board 90, and operates when the central controller CPU selects a predetermined condition. Is done.

  The central control unit CPU of the main control board 80 and each central control unit CPU installed on each of the control boards 81 to 84 described above are arithmetic units in which arithmetic units (ALUs) for processing predetermined data are coupled. And a register for storing data to be input / output to / from the arithmetic unit and a read instruction, a decoder for decoding the instruction, and the like. Note that the arithmetic processing capability of each central control unit CPU is determined by the number of coupled arithmetic units. Then, the central control unit CPU of the main control board 80 transmits a command signal generated in a predetermined format to each of the control boards 81 to 84, and the central control unit CPU of each of the control boards 81 to 84 determines in accordance with this command signal. This control is executed.

  On the other hand, the above-described effect control board 82 performs drive control of the liquid crystal display device 14 described above, control for generating sound from various speakers, control for emitting various lamps and LEDs, and the like. The effect control board 82 is connected to the liquid crystal display device 14, a lamp control board 86 for controlling the light emission of various LEDs via the LED relay terminal board, and an effect relay terminal board 87 to which a speaker is connected. Has been. Here, the liquid crystal display device 14 includes a backlight 42 for illuminating the liquid crystal display panel 41 from behind, and the backlight 42 is connected via the lamp control board 86. The backlight 42 is in this embodiment, and a white LED is used. The effect control board 82 also includes a central control device CPU, a storage device ROM, and a storage device RAM, similarly to the main control board 80 described above. Such an effect control board 82 controls and executes the display of the effect image by the liquid crystal display device 14, the light emission of each LED, and the sound generation of the speaker in accordance with the effect command signal received from the main control board 80. The process for controlling the liquid crystal display device 14 is related to the main part of the present invention and will be described in detail later.

  The payout control board 81 controls the driving of a ball payout device (not shown) for paying out award balls and rental balls. The payout control board 81 drives the above-described ball payout device (not shown) in accordance with the payout command signal received from the main control board 80, and executes control for paying out predetermined prize balls.

  The launch control board 84 controls the launch of the game ball by driving and controlling a launch device (not shown) according to the operation of the launch handle 9 described above. The launch control board 84 is also connected to the main control board 80 described above, and when a predetermined command signal is input from the main control board 80, drive control is performed accordingly.

  The power supply board 83 described above converts the power supplied from the external power source into a predetermined voltage, and the main control board 80, the payout control board 81, the effect control board 82 (and the lamp control board 86) described above, The power is transmitted to the launch control board 84. The power supply board 83 is supplied with AC 24V current from an external power source. Circuits for converting the AC24V into DC32V, DC12V, and DC5V are provided. In addition, an overload protection circuit, a reset circuit, a backup capacitor (backup power supply) and the like that prevent excessive current from flowing are provided.

  The main control board 80, the payout control board 81, the effect control board 82 (and the lamp control board 86), and the launch control board 84, each of which is supplied with DC32V, DC12V, and DC6V power from the power supply board 83, are respectively driven and controlled. A predetermined electric power is distributed to a motor, a solenoid, a switch, a sensor, an LED, a speaker, a display device, and the like.

Next, the control mode by the control circuit shown in FIG. 3 will be described according to the operation of the pachinko gaming machine.
When the above-described launch handle 9 is operated by the player, the game ball is launched into the game area 12. When the game ball passes through the normal symbol start gate 19 and the normal symbol start switch S2 is turned ON, the main control board 80 selects the normal hit random number value and the normal hit random number value as the normal symbol start process. Furthermore, a control process for changing the normal symbol (not shown) by the liquid crystal display device 14 is performed by the effect control board 82, and the normal symbol is fixedly stopped according to the selected normal random number value and the normal random symbol value. I do. Here, when the normal symbol hits and is fixedly stopped in the symbol form, control is performed to expand the opening / closing wing piece (not shown) of the variable winning device 21 to the tilting position.

  When the game ball rolling down in the game area 12 flows into the start port 22 of the variable prize device 21, the special symbol start switch S1 is turned ON, and the main control board 80 extracts each random number value described above and the special symbol. A start port process for storing the start memory is performed. Here, the central control unit CPU of the main control board 80, when the special symbol start switch S1 is turned ON, the big hit special random number table, the big hit symbol random number table, the lost symbol random number table, the reach random number table stored in the storage device ROM. The jackpot special random number value, the jackpot symbol random number value, etc. are extracted by lottery from the reach symbol random number table, the reach mode random number table, and the like. Then, in response to a command signal from the main control board 80, the effect control board 82 drives and controls the liquid crystal display device 14 to change the special symbols A, B, and C, and the special control according to each random number selected by the lottery described above. A control process for stopping and displaying symbols A, B, and C is executed. Here, if the big hit special random number value is a win, the big hit symbol random number value is selected to determine the hit symbol, and the hit symbol variation pattern to be displayed on the screen of the liquid crystal display device 14 is selected according to the other random number values, The effect control board 82 displays a series of symbol generation processes until the special symbols A, B, and C are determined and stopped in the stop symbol form on the liquid crystal display device 14. Then, when the special symbols A, B, and C are confirmed and stopped in the symbol mode, as described above, an open / close round that opens and closes the special winning opening 26 is started as a special game operation. On the other hand, if the jackpot special random number value is lost, the lost symbol random value is selected to determine the lost symbol, and the lost symbol variation pattern is selected according to the other random number values. A series of symbol generation processes until B and C are fixedly stopped in the lost stop symbol mode is displayed.

Next, the main part of the present invention will be described.
The liquid crystal display device 14 disposed in the center case 13 includes a liquid crystal display panel 41, a backlight 42, a drive circuit 43, a power supply circuit 44, and the like (see FIG. 3). Here, the liquid crystal display panel 41 has a general structure including a polarizing filter, a transparent electrode, a liquid crystal, an alignment film, a color filter, and the like. The power supply circuit 44 controls the light emission of the backlight 42 and the drive circuit 43 applies a voltage to the transparent electrode to control the liquid crystal to be aligned in a predetermined direction according to the alignment film. Is displayed. As a control process for displaying an image with such a liquid crystal display device 14, a conventionally used control method can be applied, and the details thereof are omitted.

  The effect control board 82 drives and controls the drive circuit 43 in accordance with a command signal from the main control board 80 and drives the power supply circuit 44 via the lamp control board 86 to drive the liquid crystal display device 14 described above. Control (see FIG. 4). That is, the effect control board 82 selects effect image data set and stored in advance according to the command signal input from the main control board 80, and drives and controls the drive circuit 43 according to the effect image data. Control to apply a voltage to the transparent electrode of the liquid crystal display panel 41 is performed. Furthermore, the effect control board 82 performs control to supply power to the backlight 42 according to a predetermined pulse width by drivingly controlling the power supply circuit 44 via the lamp control board 86. Thus, by executing the power supply control to the backlight 42 and the drive control of the liquid crystal display panel 41, a desired effect image is displayed on the liquid crystal display panel 41.

  Furthermore, in this embodiment, the effect control board 82 controls the power supply circuit 44 to adjust the amount of light of the backlight 42 stepwise, and controls the drive circuit 43 to drive the liquid crystal. A control processing program and data for adjusting the contrast of the display panel 41 in stages are provided. Here, as the drive control of the power supply circuit 44, the amount of power supplied to the backlight 42 is adjusted by controlling the amount of power supplied to the backlight 42, and the set power supply amount in four stages is set in advance. Has been. The set power supply amount is set in four stages from level 1 having the smallest power supply amount to level 4 having the largest power supply amount. That is, when the power supply circuit 44 is controlled according to the level 1 set power supply amount, the liquid crystal display panel 41 is darkest because the light amount of the backlight 42 is the lowest, and the level 4 set power supply amount is set. Since the light quantity of the backlight 42 is the highest, the liquid crystal display panel 41 is brightest. The effect control board 82 adjusts and controls the amount of light of the backlight 42 by selecting one of the levels 1 to 4 of the set power supply amount and driving and controlling the power supply circuit 44 according to the selected level. The set power supply amount at levels 1 to 4 is the set light amount value according to the present invention.

  Further, as the drive control of the drive circuit 43 for adjusting the contrast, the contrast is adjusted by controlling the voltage application to the transparent electrode (not shown) of the liquid crystal display panel 41. For example, as the contrast adjustment, the voltage applied to the transparent electrode of the liquid crystal display panel 41 is controlled to control the alignment direction of the liquid crystal constituting the liquid crystal display panel 41, thereby changing the light transmittance. Like to do. As the set contrast value for controlling the voltage application to the transparent electrode, four levels of values are set in advance, and the level value is from a level 1 having the lowest contrast to a level 4 having the highest contrast. . That is, when the drive circuit 43 is controlled in accordance with the level 1 set contrast value, the contrast of the liquid crystal display panel 41 is the lowest, the color change of the image is the slowest, and the display is blurred, according to the level 4 set contrast value. When controlled, the contrast is the highest, the color change of the image is the largest, and the display is clear. The effect control board 82 adjusts and controls the contrast of the liquid crystal display panel 41 by selecting one of the set contrast value levels 1 to 4 and controlling the drive circuit 43 according to the selected level.

  The set power supply amount (set light amount value) and the set contrast value of the backlight 42 described above are stored and held in the recording device ROM of the effect control board 82. When the liquid crystal display panel 41 is driven and controlled, it is appropriately read by the driving program and used to drive and control the driving circuit 43 and the power supply circuit 44.

  On the other hand, the center case 13 is provided with an illuminance detection sensor 48 for detecting illuminance (see FIG. 2). The illuminance detection sensor 48 is connected to an input port ( (Not shown). The illuminance detection sensor 48 detects the illuminance on the front side (the front side of the machine base) of the center case 13, and the liquid crystal display in which the main control board 80 is disposed on the center case 13 based on the detected illuminance. The brightness of the front side of the device 14 is measured. The main control board 80 is set in accordance with the illuminance detected by the illuminance detection sensor 48, and the brightness of the front panel side of the liquid crystal display device 14 is set to a three-level brightness class that is classified in order of brightness. Thus, a process for determining which brightness class the detected illuminance applies to is performed. Here, as the brightness class, the brightness range between the highest value and the lowest value of the illuminance detected by the illuminance detection sensor 48 during the opening of the game hall where the pachinko gaming machine 1 is installed, It is set to be divided into three classes. This third class is divided into two different high illuminance thresholds and low illuminance thresholds, and the case where the brightness is higher than the high illuminance threshold is the brightest third brightness class, which is not less than the low illuminance threshold and less than the high illuminance threshold. The case is defined as the second brightness class, and the case of less than the low illuminance threshold is defined as the darkest first brightness class. That is, the main control board 80 determines the illuminance input from the illuminance detection sensor 48 based on the high illuminance threshold and the low illuminance threshold, and determines the first to third brightness classes to which the illuminance applies. Then, based on the determination results of the first to third brightness classes, a command signal for driving and controlling the brightness of the liquid crystal display panel 41 is output to the effect control board 82.

  The effect control board 82 to which the command signal based on the above-described brightness class has been input controls the drive circuit 43 and the power supply circuit 44 to control the drive power 43 (set light quantity value) and the set contrast value. A process of selecting each level is executed. That is, as shown in FIG. 4, when the command signal is a signal indicating the third brightness class, level 3 of the set power supply amount (set light amount value) described above and level 1 of the set contrast value described above Select. When the command signal indicates the second brightness class, the level 2 of the set power supply amount and the level 2 of the set contrast value are selected. When the command signal indicates the first brightness class, the level 1 of the set power supply amount and the level 3 of the set contrast value are selected. Thus, the effect control board 82 presets the set power supply amount (set light amount value) and the set contrast value so as to be assigned to the first to third brightness classes, respectively. When the set power supply amount (set light amount value) and the set contrast value of each level are selected, the power supply circuit 44 is driven and controlled to adjust the light amount of the backlight 42 and the drive circuit 43 is driven. The contrast of the liquid crystal display panel 41 is adjusted and controlled.

  Here, the set power supply amount and the set contrast value respectively assigned to the first to third brightness classes are a pair of level 3 having a high set power supply amount and level 1 having the lowest set contrast value. The supply amount level 2 and the set contrast value level 2 are set as a pair, and the level 1 having the lowest set power supply amount and the level 3 having a high set contrast value are set as a pair. Therefore, even if the light intensity and contrast of the backlight 42 are adjusted by changing the first to third brightness classes, the change in brightness displayed on the liquid level display panel 41 is apparent. The top is suppressed. This is because levels 1 to 3 of the set power supply amount for increasing / decreasing the amount of light of the backlight 42 and levels 1 to 3 for setting contrast values for increasing / decreasing the contrast are opposite to each other. For example, when the second brightness class is changed to the first brightness class, the set power supply amount decreases from level 2 to level 1, thereby reducing the amount of light of the backlight 42, but the set contrast value is By improving the level 2 to the level 3, the contrast is improved, so that the brightness of the liquid crystal display panel 41 can be made to appear to have hardly changed before and after the change.

  On the other hand, in the present embodiment, as described above, the reach effect is executed in the symbol generation process in which the special symbols A, B, and C are variably displayed in response to the winning at the start port 22 of the variable winning device 21. In this case, the contrast of the liquid crystal display panel 41 is improved in accordance with the reach effect (see FIG. 5). This is a control process in which the set contrast value is increased by one step from the level immediately before the reach effect while the reach effect is being executed by the symbol generation process (hereinafter referred to as the reach game state). As a result, in the reach game state, the brightness of the liquid crystal display panel 41 displaying a predetermined reach effect image is apparently increased, so that the player's expectation of winning can be enhanced. Further, when the special symbols A, B, and C are confirmed and displayed in the stopped symbol pattern in the symbol generation process (when the special game state described above is entered), the set power supply amount (set light amount value) is determined from the level in the symbol generation process. A control process for raising the level by one step is performed. As a result, it is possible to further enhance the sense of achievement of profit acquisition by increasing the brightness of the liquid crystal display panel 41 when the special game operation that allows the player to acquire the most profit is executed.

  Here, the control processing for increasing the level of the set contrast value in the reach game state during the reach production of the symbol generation process is performed when the special symbols A, B, and C are confirmed and displayed in the stop-stop symbol form. To return to the process of selecting the level of the set contrast value. That is, the level of the set contrast value is returned to the level immediately before the reach gaming state. Further, when the special symbols A, B, and C are confirmed and displayed in the winning stop symbol mode and become in the special game state, the set contrast value with a higher level is maintained in the reach game state. Therefore, in the special gaming state, both the set contrast value and the set power supply amount are high. Then, when the special game state is finished (when the special game operation is finished), the process returns to the process of selecting each level of the set contrast value and the set power supply amount according to the brightness class (not shown). As described above, when the reach gaming state or the special gaming state is entered, processing for increasing the level of the set contrast value and the set power supply amount (set light amount value) is executed in preference to the processing controlled according to the brightness class.

  Furthermore, in this embodiment, a light amount adjustment volume 50 (see FIG. 3) for remotely operating the drive circuit 43 and the power supply circuit 44 of the liquid crystal display device 14 of the pachinko gaming machine 1 is provided. . The light amount adjustment volume 50 is installed at a location away from the main body of the pachinko gaming machine 1 and is managed by the game hall so that the player cannot easily operate it. The light quantity adjustment volume 50 is connected to the panel surface relay terminal plate 90 by wiring for transmitting an adjustment signal generated by the operation, and the adjustment signal is transmitted to the main control board 80 via the panel surface relay terminal plate 90. To input. Here, the light amount adjustment volume 50 of the present embodiment is of a dial type so that it can be rotated, and can be rotated up to 90 degrees left and right from a preset reference position. It is output as an adjustment signal. Then, when rotating to the left, a negative rotation angle is output as an adjustment signal, and when rotating to the right, a positive rotation angle is output as an adjustment signal.

  When the main control board 80 receives the adjustment signal from the light quantity adjustment volume 50, the main control board 80 controls the command signal for adjusting and controlling the light quantity and contrast of the backlight 42 of the liquid crystal display device 14 in accordance with the adjustment signal. Output to the substrate 82. Here, as the adjustment control of the light amount and the contrast of the backlight 42, each set power supply amount (set light amount value) and each set contrast value of the above-described levels 1 to 4 are set to the rotation angle ( Correction processing is performed according to the rotation angle with respect to the reference position. In this correction processing, as shown in FIG. 6, the setting difference between each level 1 to 4 of the set power supply amount and the set contrast value corresponds to the maximum rotation angle (90 degrees) of the light amount adjustment volume 50. The setting difference is corrected by the rotation angle ratio. For example, when the rotation angle is 30 degrees, a correction value that is 1/3 (30 degrees / 90 degrees) of the set difference is added to or subtracted from each level. When the rotation angle is 90 degrees, the level is substantially changed by one step. When the light amount adjustment volume 50 is rotated to the left, correction processing is performed so as to reduce the light amount of the backlight 42. When the light amount adjustment volume 50 is rotated to the right side, correction is performed so as to improve the light amount of the backlight 42. Process.

  Specifically, when the light amount adjustment volume 50 is rotated 30 degrees from the reference position to the left while being driven and controlled by the level 2 set power supply amount and the level 2 set contrast value, the set power supply amount A process of subtracting 1/3 of the set difference between the levels from the set power supply amount of each level to correct the set power supply amount of each level is performed. By this correction processing, the set power supply amount at each level is calculated as a correction value that is reduced by about 33%. At the same time, 1/3 of the set difference between the levels of the set contrast value is added to the set contrast value of each level to perform a process of correcting the set contrast value of each level. By this correction processing, the set contrast value of each level is calculated as a correction value improved by about 33%. Then, the power supply circuit 44 and the drive circuit 43 are driven and controlled according to the set power supply amount and the set contrast value of each level calculated by the correction processing. Thereby, the light quantity of the backlight 42 is reduced and the contrast is improved in a state where the brightness class is not changed.

  Further, in a state where the light amount adjustment volume 50 is rotated and maintained at a predetermined rotation angle, as described above, the set power supply amount and the set contrast value at each level are corrected according to the rotation angle, and the correction is performed. The value is maintained. Therefore, in this state, when the brightness class changes, drive control is performed according to each level of the corrected set power supply amount and set contrast value. When the light amount adjustment volume 50 is returned to the reference position, the set power supply amount and the set contrast value are used as preset values.

  In this embodiment, the main control board 80 and the effect control board 82 constitute display processing control means according to the present invention. In addition, according to the present invention, the process of driving and controlling the power supply circuit 44 and the drive circuit 43 according to the set power supply amount (set light amount value) and the set contrast value according to the brightness class to which the illuminance detected by the illuminance detection sensor 48 is applied. This is the content of the light amount adjustment process. In addition, the control processing for increasing the level of the set contrast value in the reach gaming state during the reach production of the symbol generation process is the content of the contrast adjustment processing according to the present invention, and the special symbols A, B, and C are hit and stopped. The control processing for increasing the level of the set power supply amount in the special game state executed as described above is the game light amount adjustment processing content according to the present invention. In this embodiment, the light amount adjustment processing content, the contrast adjustment processing content, and the game light amount adjustment processing content are executed according to the light amount adjustment processing shown in FIGS. Further, the process of correcting the set power supply amount and the set contrast value according to the operation of the light amount adjustment volume 50 is the remote adjustment process content according to the present invention (see FIG. 6).

  Furthermore, in the present embodiment, when reaching the reach gaming state, since the process of increasing the set contrast value by one step is executed, the set contrast value that is one step higher than the set contrast value assigned to the brightness class is This is the set contrast increase / decrease value according to the present invention. The set power supply amount that is one step higher than the set power supply amount assigned to the brightness class is the set light amount increase / decrease value according to the present invention.

Next, a flow of control processing for changing the light amount and contrast of the backlight 42 of the liquid crystal display device 14 will be described. This control process is executed by the light quantity adjustment process shown in FIGS. 4 and 5 and the remote adjustment process shown in FIG. 6 incorporated in a main process (not shown) that is continuously executed at predetermined time intervals. I have to.
For example, the light intensity of the backlight 42 is adjusted and controlled by the set power supply amount (set light amount value) of level 3 as the third brightness class based on the illuminance detected by the illuminance detection sensor 48, and further, by the set contrast value of level 1 The contrast of the liquid crystal display panel 41 is adjusted and controlled (see FIG. 4). Here, it is assumed that the above-described light amount adjustment volume 50 is maintained at the reference position.

  When the illuminance detected by the illuminance detection sensor 48 decreases and becomes the second brightness class due to the illuminance, the level 2 set power supply amount is selected and the power supply circuit 44 is driven and controlled as shown in FIG. The contrast of the liquid crystal display panel 41 is improved by reducing the amount of light of the backlight 42 and drivingly controlling the drive circuit 43 by selecting a set contrast value of level 2. If the brightness on the front side of the machine base decreases in this way, the amount of light of the backlight 42 is reduced accordingly and the contrast is improved. Therefore, the brightness of the liquid crystal display panel 41 apparently hardly changes. The change in the amount of light of the backlight 42 is extremely difficult to understand. Thereby, the light quantity of the backlight 42 can be reduced without raising or lowering the player's emotions, and the amount of power supplied to the backlight 42 can be reduced.

  In addition, as shown in FIG. 5, a series of symbol generation processes in which the special symbols A, B, and C are changed in response to winning of the game ball at the start port 22 are executed, and the reach symbol form in which the special symbol A = B is obtained. When displayed, the liquid crystal display device 14 enters a reach gaming state in which a reach effect image is displayed. Here, the display of the reach effect image is determined in accordance with the above reach random number value, reach symbol random value, etc., and is executed as part of the symbol generation process. That is, when the hit is determined based on the above-mentioned special jackpot special random value, or when the hit special random number is lost and the execution of the reach is determined based on the reach random number value, the reach gaming state is determined. When the reach gaming state for displaying the reach effect image is reached, the effect control board 82 selects a level 3 set contrast value that is one step higher than the current level 2 set contrast value, and drives and controls the drive circuit 43 accordingly. . Thereby, since the contrast of the liquid amount display panel 41 is improved, the player can recognize that the reach effect image displayed on the liquid crystal display panel 41 is apparently bright. Therefore, it is possible to further improve the feeling of expecting the player's big hit.

  After that, when the special symbols A, B, and C are confirmed and displayed in a winning stop symbol mode, a special gaming state is executed in which an opening / closing round for opening and closing the above-described special winning opening 26 is performed a predetermined number of times. In this special gaming state, the effect control board 82 drives and controls the power supply circuit 44 with the selected power supply amount of level 3 that is one step higher than the current set power supply amount (set light amount value) of level 2. Thereby, since the light quantity of the backlight 42 becomes high, the effect image displayed on the liquid crystal display panel 41 becomes brighter. As a result, it is possible to further increase the player's sense of accomplishment by obtaining the big hit. After that, when the special gaming state ends, the power supply circuit 44 is driven and controlled with the current level 3 set power supply amount set to the level 2 set power supply amount, and the set contrast value is set to level 2 and the drive circuit 43 is set. Drive control. Thereby, the brightness of the liquid crystal display panel 41 returns to the state adjusted according to the brightness class based on the illuminance.

  In addition, when the special symbols A, B, and C are confirmed and displayed in the lost game state in the reach gaming state, the current level 3 set contrast value is converted to the level 2 set contrast value before the reach gaming state. The drive circuit 43 is driven and controlled according to the set contrast value. Thereby, the brightness of the liquid crystal display panel 41 returns to the state adjusted according to the brightness class based on the illuminance.

  Furthermore, when the attendant of the game hall reduces the light amount of the backlight 42 of the liquid crystal display device 14 in consideration of the environment and energy saving, the light amount adjustment volume 50 is rotated from the reference position to the left side. . Here, if the light quantity adjustment volume 50 is rotated 45 degrees to the left from the reference position, the set power supply amount and the set contrast set for each level 1 to 4 according to the rotation angle as shown in FIG. Correct each value. As a result, the current set power supply amount of level 2 is corrected so as to subtract 1/2 (45 degrees / 90 degrees) of the setting difference between the levels, and the level 1 and level 2 are substantially reduced. The power supply amount is intermediate (equivalent to so-called level 1.5). On the other hand, the set contrast value is corrected so as to add 1/2 of the set difference between the levels, and is substantially an intermediate value between level 2 and level 3 (corresponding to so-called level 2.5). . Then, the power supply circuit 44 is driven and controlled by the set power supply amount of level 2 after correction, and the drive circuit 43 is driven and controlled by the set contrast value of level 2 after correction. When the light amount adjustment volume 50 is rotated as described above, the light amount of the backlight 42 is reduced and the contrast is improved according to the rotation angle. Also in this case, since the brightness of the effect image displayed on the liquid crystal display panel 41 does not seem to change, the power supply amount of the backlight 42 can be reduced without causing the player to recognize the brightness change. The set power supply amount and the set contrast value at each level are maintained at the corrected values until the light amount adjustment volume 50 is further rotated, so that when the brightness class changes, Accordingly, adjustment control is performed according to the corrected value.

  As described above, the pachinko gaming machine 1 according to the present embodiment is set so that the illuminance detected by the illuminance detection sensor 48 corresponds to one of the three classes of brightness, and is assigned to each brightness class. The liquid crystal display device 14 is adjusted and controlled according to the set power supply amount (set light amount value) and the set contrast value of each level. Thereby, the light quantity and contrast of the backlight 42 of the liquid crystal display device 14 are adjusted according to the brightness on the front side of the machine base of the pachinko gaming machine 1. When the front side of the machine base is bright, the light amount of the backlight 42 is increased and the contrast is suppressed, and when dark, the light amount of the backlight 42 is decreased and the contrast is increased. Therefore, for example, even if the brightness of the liquid crystal display panel 41 is substantially reduced due to a reduction in the amount of light of the backlight 42, it is possible to make the apparent brightness remain the same by improving the contrast. This is because, for example, when the above-described effect image that is expected to be a big hit is displayed on the liquid crystal display device 14, the brightness class is lowered, and the light quantity reduction and the contrast improvement of the backlight 42 are performed accordingly. However, the player cannot recognize the brightness change of the liquid crystal display panel 41. Therefore, the interest of the game generated by the effect image displayed on the liquid crystal display panel 41 of the liquid crystal display device 14 can be properly maintained.

  Note that, if only the light amount of the backlight is reduced when the brightness environment becomes dark, the brightness of the liquid crystal display panel is lowered. Therefore, when the above-described effect image expecting a big hit is displayed, the expectation It may also reduce the feeling and may reduce the fun of the game. On the other hand, in the configuration of the present embodiment, as described above, there is an excellent effect that the interest of the game is not deteriorated.

  Further, when the brightness environment on the front side of the machine base becomes dark, the amount of power required for the liquid crystal display device 14 can be reduced by reducing the amount of light of the backlight 42, and energy saving can be promoted. . In particular, since the amount of power required for the backlight 42 represents a large amount of driving power for the liquid crystal display device 14, the effect of reducing this is extremely high.

  Further, in the above-described symbol generation process, when the reach gaming state in which the reach effect image is displayed on the liquid crystal display device 14 is executed, a control process for increasing the set contrast value by one step is executed, and a special game state is achieved by making a big hit. The control process for increasing the set power supply amount by one step is executed. As a result, it is possible to further increase the feelings of the player who expects a big hit due to reaching the reach, and to further enhance the satisfaction due to the big hit. Therefore, it is possible to improve the fun of the game.

  Further, by rotating the light amount adjustment volume 50, the game hall side can appropriately adjust the light amount of the backlight 42, so that it is possible to save energy by making an independent determination on the game hall side. Even when the light amount of the backlight 42 is reduced by the light amount adjustment volume 50, the liquid amount display is performed in the same manner as in the case of the change in the brightness class because the control is performed to improve the contrast. Since the brightness at the panel 41 does not change apparently, the same effect can be obtained.

  In the configuration of the embodiment described above, the brightness class of the third class is set with respect to the illuminance detected by the illuminance detection sensor, but this brightness class is various such as the second class and the fourth class. Can be set to Then, in accordance with the number of brightness classes, a set power supply amount (set light amount value) and a set contrast value to be assigned to each class are set in advance. Therefore, the number of levels of the set power supply amount and the set contrast value is set as appropriate according to the number of brightness classes.

  In the above-described embodiment, the control process for improving the contrast is performed when the reach gaming state is reached, and the control process for improving the light amount of the backlight is performed when entering the special gaming state. The control process for changing the amount of light may be executed when the game state is changed. For example, the control may be performed so as to improve the light amount of the backlight when the probability variation gaming state is entered.

  Moreover, although the Example mentioned above is the structure provided with the light quantity adjustment volume 50 for every pachinko game machine 1, it can also be set as the structure provided with the light quantity adjustment volume which controls a several pachinko game machine simultaneously.

  In this invention, it is not limited to the Example mentioned above, About another structure, it can change suitably within the range of the meaning of this invention.

1 Pachinko machine (game machine)
DESCRIPTION OF SYMBOLS 14 Liquid crystal display device 41 Liquid crystal display panel 42 Backlight 48 Illuminance detection sensor 50 Light quantity adjustment volume 80 Main control board (display process control means)
82 Production control board (display processing control means)

Claims (3)

In a gaming machine comprising a liquid crystal display device that displays an effect image on the liquid crystal display panel by illuminating the liquid crystal display panel with a backlight, and display processing control means for driving and controlling the liquid crystal display device.
An illuminance detection sensor that detects illuminance is provided on the front side of the machine base.
The display processing control means includes
A plurality of brightness classes that are determined with respect to the illuminance detected by the illuminance detection sensor and that classify the brightness on the front side of the machine base in order of brightness, and the amount of light of the backlight is reduced according to the decrease in the brightness class. A predetermined set light intensity value assigned to each brightness class and a predetermined set contrast value assigned to each brightness class so that the contrast of the liquid crystal display panel is improved as the brightness class decreases. Set in advance,
According to the brightness class determined by the illuminance detected by the illuminance detection sensor, the light intensity of the backlight is adjusted and controlled by the set light intensity value assigned to the brightness class, and the contrast of the liquid crystal display panel is assigned to the brightness class. A light amount adjustment process for adjusting and controlling according to the set contrast value ,
It has a light quantity adjustment volume for adjusting the light quantity of the backlight of the liquid crystal display device by remote control,
In accordance with the operation of the light amount adjustment volume, the display control means reduces the light amount of the backlight and increases the contrast of the liquid crystal display panel according to the light amount decrease, or increases the light amount of the backlight and improves the light amount. A remote control processing content for performing any one of the control processing for reducing the contrast of the liquid crystal display panel in response to the content is provided .   The display processing control means presets a set light amount increase / decrease value for increasing / decreasing the backlight light amount, and when a specific gaming state is reached, the game light amount adjustment processing content for adjusting and controlling the backlight light amount according to the set light amount increase / decrease value The gaming machine according to claim 1, further comprising:   The display process control means includes a contrast adjustment process for presetting a set contrast increase / decrease value for increasing / decreasing contrast and adjusting and controlling the contrast of the liquid crystal display panel according to the set contrast increase / decrease value when a specific gaming state is reached. The gaming machine according to claim 1.

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