JP3251390B2 - Gaming machines equipped with a liquid crystal display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gaming machine having a liquid crystal display device , and more particularly to a gaming machine having a liquid crystal display device for performing a game display using a liquid crystal having a memory characteristic showing spontaneous polarization. />.

[0002]

2. Description of the Related Art In a conventional gaming machine, for example, a pachinko gaming machine, a variable display game for variably displaying a plurality of digits of a display symbol on a game board is performed based on winning of a game ball to a starting port, and the game is stopped. When the symbols are in a special combination, a special game is performed in which a big hit is generated and the variable winning device or the like is changed to a state advantageous to the player for a predetermined period.

Therefore, a variable display device for variably displaying a display pattern of a plurality of digits is currently provided with a seven-segment display or a light-emitting diode (L) arranged in a dot matrix.
Although ED (Light Emitting Diode) is used, it is shifting to a liquid crystal display that can provide richer game expression.

[0004] In addition to the above, a CRT (Cathode Ray Tube) or the like is also used as a display device for displaying a game, but in consideration of a limited installation space in the game machine, a liquid crystal display is used. Are becoming more mainstream than CRTs.

As such a liquid crystal display device, an active matrix using a nematic liquid crystal or the like is generally known. However, the liquid crystal display device is very excellent in high-speed response and memory characteristics (bistability). There is a ferroelectric liquid crystal having characteristics. At present, application of liquid crystal display devices using the ferroelectric liquid crystal to game machines has attracted attention.

[0006]

However, in such a conventional game machine liquid crystal display device, for example,
When a ferroelectric liquid crystal is used, polarization occurs even in the absence of an external electric field (spontaneous polarization), and the memory has a memory characteristic of maintaining a screen display. Therefore, for example, even if the power of the pachinko game machine is turned off after the pachinko game store is closed, the display contents that have been displayed up to that point are kept as they are on the screen. For this reason, an unnecessary display remains on the liquid crystal screen, and if left in that state for a long time, there is a problem that a kind of burning phenomenon such as an afterimage occurs on the liquid crystal panel, and the image quality is degraded.

[0007] In particular, in the case of a commercial gaming machine installed in a pachinko game store, a game center, or the like, since the game display is performed for a long time from morning to late at night, the above-described burn-in phenomenon further occurs. It will be easier.

In the case of a liquid crystal display device of a game machine, since only a predetermined pattern is displayed in many cases, the above-described burning phenomenon is easily generated.

[0009] The present invention was made to solve the above problem, preventing the occurrence of seizure phenomenon of the liquid crystal display device, a liquid crystal display capable of maintaining less good image quality changes over time It is an object of the present invention to provide a gaming machine provided with the device .

[0010]

The means of the present invention are as follows.

According to a first aspect of the present invention, there is provided a liquid crystal display means for performing a game display using a liquid crystal having a memory characteristic showing spontaneous polarization, a liquid crystal drive means for driving the liquid crystal display means, and a liquid crystal drive means. Display control means for performing display control.
In the gaming machine having a liquid crystal display device, the game is a predetermined time
A game state detecting means for detecting a state in which the game is not performed;
If it detects that the trick has not been performed for a predetermined time,
Display active means for performing constant of game displayed continuously, with a
It is characterized by the following .

[0012] The invention according to claim 2 provides the invention according to claim 1.
In a gaming machine equipped with a liquid crystal display device, the power of the gaming machine is
Voltage that detects that the source voltage has dropped below a specified voltage value
Drop detecting means, and when detecting the voltage drop, the liquid crystal components of all pixels
Liquid crystal display to erase the liquid crystal display by orienting the element in one direction
And removing means.

[0013] The invention according to claim 3 is the invention according to claim 1 or 2.
A gaming machine provided with the liquid crystal display device according to
The state detecting means is configured to play the game even if the normal game display is being performed.
If no status is detected for a predetermined period of time,
It is characterized in that predetermined game display is performed continuously in advance.
You.

[0014] The invention according to claim 4 is the invention according to claims 1 to 3.
A gaming machine provided with the liquid crystal display device according to any one of the above.
Further, the liquid crystal having the memory characteristic showing the spontaneous polarization is a ferroelectric liquid crystal.

[0015]

[0016]

[0017]

The operation of the means of the present invention is as follows.

According to the first aspect of the present invention, the game state detecting means
The stage detects that the game has not been playing for a predetermined time.
If the state is detected, the display active means
Thus, a predetermined game display is continuously performed.

According to the second aspect of the present invention, a voltage drop detecting means is provided.
Step, the power supply voltage of the gaming machine falls below a predetermined voltage value.
When the voltage drop is detected, the liquid crystal display
The liquid crystal molecules of all pixels are aligned in one direction by the
And the liquid crystal display is erased.

According to the third aspect of the present invention, a normal game display is provided.
The game has not been played for a predetermined period of time.
If detected, the gaming state detection means gives priority
A predetermined game display is continuously performed.

According to the fourth aspect of the present invention, spontaneous polarization is exhibited.
With ferroelectric liquid crystal as a liquid crystal with memory characteristics,
Liquid crystal display with excellent characteristics such as high-speed response
Prevent burn-in and maintain good image quality
You.

[0022]

[0023]

[0024]

[0025]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 4 show a liquid crystal display device according to the present invention.
It is a figure showing the composition of the example of the game machine provided with . In the present embodiment, a pachinko gaming machine in which a liquid crystal display device using a ferroelectric liquid crystal is arranged in a special symbol variable display portion at the center of the gaming board will be described as an example.

First, the configuration will be described.

FIG. 1 is a front view of a gaming board of a pachinko gaming machine. In FIG. 1, a special symbol variable portion including a liquid crystal display device 5 for playing a variable display game is provided in a game area 4 surrounded by a guide rail 3 attached to a peripheral portion of a game board 2 of a pachinko gaming machine 1. A display device 6 is provided, and a large winning opening 7 for directing a player to a special game when a big hit in the variable display game is provided is provided directly below the display device 6.

On both sides of the special symbol variable display device 6, first-type starting ports 8 and 9 are provided, and below the special symbol variable display device 6, a first-type starting port 10 is provided. .

The game area 4 is provided with lamps 11 and 12 for notifying a player of a game state.

FIG. 2 is a block diagram showing a configuration example of a gaming machine control device according to this embodiment. Each part in FIG. 2 is configured as follows.

A CPU (Central Processing Unit) 13 is provided on the main control board 50, and controls a game operation of various devices provided in a game area of the pachinko game machine based on a control program. is there. In addition, the CPU 13 of the present invention detects that the power supply voltage from the power supply circuit 14 that supplies power to each unit of the gaming machine has fallen below a predetermined voltage value with the voltage drop detection device 15 as a voltage effect detection unit, Upon receiving the detection signal, it functions as a display control unit that drives the LCD 16 as a liquid crystal display unit, and controls a later-described liquid crystal drive unit 49 as a liquid crystal drive unit. The CPU 13 has a liquid crystal display erasing means,
By the liquid crystal display erasing means, by orienting the liquid crystal molecules of all the pixels of the liquid crystal in one direction, the liquid crystal display is erased, or when a game is not played for a predetermined time, a predetermined operation display is continued, Prevents burning.

FIG. 3 shows a liquid crystal display device according to the present invention.
FIG. 2 is a block diagram illustrating a configuration of a main part that controls a liquid crystal display device of the gaming machine. As shown in FIG. 3, the voltage drop detecting device 15 constantly monitors the power supply voltage of the power supply circuit 14.
The voltage drop detecting device 15 and the power supply circuit 14 are provided as separate circuits on the main control board 50, and the liquid crystal driving device 49 for performing display control of the LCD 16 is provided as separate circuits on the auxiliary control board 51. The auxiliary control board 51 is supplied with DC12V from the main control board 50 and generates a positive voltage (5V, 13V) and a negative voltage (8V, 21V) necessary for driving the liquid crystal of the LCD 16.

The voltage drop detector 15 of this embodiment constantly monitors, for example, whether the voltage supplied from the power supply circuit 14 has dropped below DC 20V. When there is a voltage drop, a detection signal is sent to the CPU 13. Upon receiving the detection signal, the CPU 13 sends screen erasure information to the liquid crystal driving device 49 of the auxiliary control board 51, and controls the display of the LCD 16 to erase the screen.

The LCD 16 of this embodiment uses, for example, a ferroelectric liquid crystal made of a liquid crystal material exhibiting spontaneous polarization represented by a chiral smectic C liquid crystal. Therefore, when erasing the stored liquid crystal screen, the interaction force P _S between the spontaneous polarization P _S and the DC electric field E is applied to the ferroelectric liquid crystal cell by applying a DC electric field E exceeding the critical electric field E _C. With E, the orientation of all spontaneous polarizations can be made uniform in the same direction as the polarity of the applied electric field throughout the liquid crystal cell. Thus, the display of the ferroelectric liquid crystal cell is erased.

Returning again to FIG. 2, the ROM (Read Only M
emory) 17 stores, together with the basic program data, fixed data such as a display pattern of various display lamps and a sound generation pattern output from the speaker 18 or a probability set value set in advance in a plurality of stages. I have.
The CPU 13 performs a control operation according to the basic program.

A RAM (Random Access Memory) 19 stores various parameters necessary for operating the gaming machine.

The oscillation circuit 20 generates a clock pulse for operating the CPU 13.

The sound generator 21 generates a predetermined audio signal, amplifies the signal by an amplifier 22, and outputs a game sound from the speaker 18.

The first type start switch 23, the continuation switch 24, the count switch 25 or the discharge request signal 26 from the discharge control circuit, the probability setting switch 27, the signal from the probability setting value display switch 28, and the game state detecting device The game state detection signal 29 from the (described later) 52 is input to the low-pass filter 30 and sent to the CPU 13 via the buffer gate 31. The CPU 13 grasps the winning state of the game ball based on these signals, and determines the game state of the pachinko machine currently playing the game with the game state detection device (described later) 52. When the state detecting means detects that the state in which the game is not performed has continued for a predetermined time, for example, the CPU 13
The liquid crystal driving device 49 for driving the LCD 16 is controlled by the display active means provided in the device, and a predetermined continuous display (moving image as a game display) is performed so that the liquid crystal display screen is refreshed so as not to cause burn-in.

FIG. 4 shows a liquid crystal display device according to the present invention.
It is a block diagram which shows the principal part structure of other Example which controls the liquid crystal display device of the gaming machine. As shown in FIG. 4, the gaming state detection device 52 monitors, for example, a pachinko gaming machine in which the power of the pachinko gaming machine is in an on state during the business hours of the pachinko gaming store, but in which the game is not performed for a predetermined time or more. Things. As the game state detection device 52, for example, a game ball launch control device receives a signal indicating whether or not the player is holding the firing handle, and determines whether or not the player is sitting at each pachinko gaming machine. An infrared sensor or the like for detection can be used. And the game state detection device 5
When it is detected that the state in which the game is not performed has continued for a predetermined period of time, a detection signal is sent to the CPU 13. Upon receiving the detection signal, the CPU 13 sends predetermined continuous display information to the liquid crystal driving device 49 of the auxiliary control board 51 to control the display of the LCD 16 so as to continuously move the liquid crystal display image.

Returning again to FIG. 2, the output port 32
The CPU 13 sends an operation control signal to a predetermined circuit based on the various switches and various signals, and through a driver 33, a probability set value display LED 34, a special winning opening 35, L
The ED 36, the lamp 37, and the high-probability indication LED 38 are activated.

Further, a jackpot signal 39, a special figure rotation signal 40, and a starting opening winning signal 41 are output to the management device on the hall side of the pachinko parlor.

Further, a data control line 42, a control code signal line 43, and a strobe signal line 44 are connected to a display control device (not shown) for controlling the special symbol variable display device 6.

Further, a transmission clock signal 45 and a prize ball data signal 46 are output to the discharge control circuit.

The bus 47 is a data line that connects the above-described units and exchanges data. EEPROM (Elec
trically Erasable Programmable Read Only Memory) 4
Reference numeral 8 denotes a memory for continuously storing the probability set value for which the switching setting has been performed even when the power of the gaming machine is turned off.

The pachinko gaming machine 1 according to the present embodiment is configured as described above.
This will be described with reference to the flowchart of FIG.

First, FIG. 5 is a general flowchart showing a control processing procedure performed by the main control board and the auxiliary control board of the present embodiment. In the present embodiment, the program processing is started one sequence at a time based on an interrupt signal described later. (For example, the execution of the program is started from address 0 based on the interrupt signal.) Hereinafter, such a process is referred to as a reset interrupt process.

Therefore, when the control process of the general flowchart shown in FIG. 5 is started, first, in step 0, a process of setting initial information is performed.

As the setting of the initial information, for example, setting of a stack pointer and clearing of a reset signal are performed.

Then, the process proceeds to step 1 to determine whether or not the current sequence corresponds to the power-on. If it is determined that the power-on is performed, the process proceeds to step 2 where the RAM 19 at power-on is stored. Initialization or the CPU 13
After performing the initialization processing for initializing the registers of the above, the process proceeds to step 3, where the output processing is performed and the sequence processing of step 15 is performed.

On the other hand, if it is determined in step 1 that the power is not turned on, the process proceeds to step 4 to perform prize ball control processing for exchanging prize ball data with the discharge control circuit.
In step 5, a probability setting process for setting the jackpot probability of the special figure game to three levels is performed, and in step 6, output processing for outputting output data set in various subroutines is performed. / A random number update process for updating the random number for determining the departure and the random number for generating the stop symbol is performed. Then, in step 8, the first type start switch 23, the continuation switch 24, the count switch 25
, Or input of a game ball discharge request signal, etc., and input processing such as logical conversion.

Thereafter, at step 9, the L when the voltage drop detecting device 15 is interrupted to the CPU 13
An LCD clear process for erasing the display on the CD 16 is performed.

Further, the voltage drop detecting device 15 sends the CPU 1
In the case where no interruption has been made to No. 3 (when the voltage does not drop = normal time), the process of step 9 is not performed, and the process proceeds to step 10.

FIG. 6 is a flowchart showing a subroutine of the voltage drop detection processing procedure in the LCD clear processing in step 9 in FIG. In the voltage drop detecting device 15 of the present embodiment, as shown in FIG. 3, the voltage value supplied from the power supply circuit 14 is a predetermined voltage value (here, DC
20V) is constantly monitored to determine whether the supply voltage has dropped below a predetermined voltage value.
An interrupt is sent to the control signal 13 to send a detection signal, and display control information (display clear data) for clearing the liquid crystal display is set (step 30). Then, the CPU 13
The display clear data is sent to the liquid crystal driving device 49 of the auxiliary control board 51 (step 31), and display control is performed so that the display on the LCD 16 is erased.

FIG. 7 is a flowchart showing a subroutine of a procedure for preventing burning of the liquid crystal screen in the game state detection processing in step 10 in FIG. In this embodiment, the gaming state detection device 52 has an infrared sensor disposed on the front of each pachinko gaming machine 1 and constantly determines whether or not the player is sitting in front of the pachinko gaming machine. Has been detected (step 40). When detecting that the player is sitting in front of the gaming machine, the infrared sensor of the gaming state detection device 52 determines that the game is in a pachinko game, performs a timer clear process (step 41), and performs a burn-in prevention process. Is cleared (step 42), and the process proceeds to the next step 11.

If the infrared sensor of the game state detecting device 52 cannot detect the player (step 4).
0), it is determined that the pachinko game is not being played, a timer is started, and a timer process for counting a predetermined time (for example, 30 minutes) is performed (step 43). Then, it is determined whether or not a predetermined time has elapsed based on whether or not the time is up (step 44). Here, when the time is up, the game state detection device 52 sets a burn-in prevention command (step 45), and sends the burn-in prevention command to the liquid crystal drive device 49. (A command is set in step 45, and a command is set in step 19 in the auxiliary control board 51.
Is sent to the liquid crystal driving device 49. This allows the image to be continuously operated and refreshed.

Returning again to FIG. 5, in step 11,
The input monitoring process of the count switch (SW5) in the variable winning device is performed. In step 12, a prize monitoring process of the continuation switch (SW4) in the variable prize winning device is performed.
In step 13, an input monitoring process of the special symbol operation switches (first start switches SW1 to SW3) is performed,
Proceed to step 14.

In step 14, branch processing is performed based on the value of an event counter as sequence execution number counting means (not shown). If the count value is "0", illegal processing is counted in step 15 If the value is "1", the special figure game process is performed in step 16, and if the count value is "2", the solenoid S
The editing process of OL-A and the input information control process of the first type start switch are performed, and the lamp / LED process is performed in step 18 when the count value is "3".

Here, the contents of each process will be briefly described.

"Unauthorized processing" (step 15) Regarding the count switch (SW5) and the like, it is monitored whether or not an illegal action such as a no-count illegal action or a ball-jamming action is performed. Is a process of notifying the injustice.

"Special figure game processing" (step 16) This is a processing for executing a special figure game.

This special figure game is a game in which the symbol of the special symbol variable display device 6 fluctuates and the symbols stopped after a predetermined period of time become a big hit. In this special figure game process, In the main control board 50, a normal operation process, determination of a stop symbol, a process of determining a symbol, setting of stop information of the symbol display portion, and the like, an end monitoring process of an automatic stop time, a stop monitoring process of the symbol display portion, Various processing such as stop monitoring and reach determination processing of the symbol display section, determination processing of a stop symbol, losing operation processing, and big hit operation processing are performed.

Then, the main control board 50 sets a command related to variable display to be output to the auxiliary control board 51 of the special symbol variable display device 6 based on the above-described symbol determination processing, and further, based on each of the above-described processing. The game sound data corresponding to each game state is set.

"Editing Process of Solenoid SOL-A" (Step 17) This is a process for setting ON / OFF data of the solenoid SOL-A.

When a big hit occurs in the special figure game, a special game opportunity is given to the player.

For this reason, the main control board 50
Of the solenoid SOL-A for setting ON / OFF data of the solenoid SOL-A for driving the solenoid SOL-A.

[Starting Switch Input Information Control Processing] (Step 17) This is processing for setting ON / OFF data of a starting opening winning signal to be output to the management device of the game arcade.

"Lamp / LED Processing" (Step 18) This is processing for setting display data of the lamps 11, 12 and LEDs according to the game state.

Of the above-mentioned processes, "illegal process", "process of special figure game", " edit process of solenoid SOL-A and start switch input information control process" or "lamp control Four programs are configured to include the processing of “LED processing”, and execution of those programs is allocated to four sequences one by one.

This makes it possible to shorten the processing time of each sequence in the program premised on the reset interrupt processing, so that the main control board 50 can execute all programs including many contents without omission. become able to.

The above processing includes "illegal processing", "special figure game processing", "solenoid SOL-A editing processing and start switch input information control processing", "lamp / LED".
The present invention is not limited to “processing”, and may be applied to other processing contents.

Further, each of the above-described processes branched according to the value of the event counter has many contents to be processed, and if all of these processes are to be executed in one sequence, all the processes are included within a 2 msec reset interrupt. There is no fear.

Therefore, in the present embodiment, the processing of steps 15 to 18 is divided for each sequence, and the time division processing is performed so that the control processing for the pachinko game machine is completed in four sequences.

With this processing, even a program corresponding to complicated game contents can be easily processed in sequence units.

Next, at step 19, the L according to the present invention is
A display control process for preventing burning of the CD 16 is performed. This display control process is performed in step 9 described above.
When the power of the gaming machine is turned off after the pachinko game store is closed or a voltage drop at the time of a power failure is detected after the pachinko game store is closed, the display clear data for clearing the liquid crystal display is transmitted to the liquid crystal driving device 49 of the auxiliary control board 51. Send, LC
The display of D16 is deleted.

Further, as another display control process, the pachinko gaming machine 1
When the infrared sensor disposed in the auxiliary control board 51 detects the presence or absence of a player and detects that the player has not been sitting in front of the gaming machine for a predetermined time or more, it burns the LCD control device 49 of the auxiliary control board 51. By transmitting a prevention command, the liquid crystal image is continuously operated, and the liquid crystal display is constantly refreshed to prevent burning. This burn-in prevention command has a higher priority than other display commands. Therefore, even if a normal game display is performed, the burn-in prevention operation is preferentially executed when the above condition is satisfied.

Of course, during a normal game operation other than the above, a normal display control process is performed so that a game display according to the game mode is performed on the LCD 16.

In step 20, sound editing and output processing are performed, a reset wait state is reached, and processing is stopped.

Then, based on a reset signal from the reset means, the CPU 13 escapes from the stop state.

In the above embodiment, steps 0 to 8
Up to phase 1 (initialization processing), steps 9 to 13 to phase 2 (output processing), steps 14 to
Steps 18 to 18 are processed as phase 3 (game processing), and steps 19 to 20 are processed as phase 4 (output editing processing and sound editing processing).

As described above, the liquid crystal display device of this embodiment
The liquid crystal display device of the gaming machine provided with the display device monitors the power supply voltage value supplied to the pachinko gaming machine with a voltage drop detecting device, and when it detects that the power supply voltage value falls below a predetermined voltage value, the main control board 5
0 to the liquid crystal drive 4 of the auxiliary control board 51
The erasing information for erasing the liquid crystal screen is sent to the liquid crystal 9, and the liquid crystal driving device 49 erases the liquid crystal screen with this erasing information. For this reason, even if the power of the gaming machine is turned off or a power failure occurs, even if a ferroelectric liquid crystal that retains the display up to that time is used, burning does not occur on the liquid crystal screen, and good image quality can always be maintained. Now you can.

A liquid crystal display device of a gaming machine provided with a liquid crystal display device of another embodiment determines whether or not a game is being played on a pachinko gaming machine during business hours of a pachinko gaming shop. When the game is not played for a predetermined time detected by the state detection device 52, the screen is refreshed by performing a predetermined continuous display on the display screen to prevent burn-in, thereby maintaining good image quality. Now you can do it.

In the above embodiment, the detection signal is sent out by the voltage drop detector 15 when the supply voltage from the power supply circuit 14 becomes equal to or less than a predetermined voltage value. Can be used to monitor the full-wave shaped waveform, determine that the power supply has stopped if the pulse of this waveform is continuously interrupted, and transmit the detection signal.

In the above-described embodiment, the pachinko gaming machine has been described among the gaming machines.
For example, it is possible to implement the same as described above using a gaming machine or the like that performs a variable display game such as a pachislot machine using a liquid crystal display device, and the same applies to a business gaming machine installed in a game center or the like. It is.

Further, in the above embodiment, the first type of pachinko gaming machine has been described. However, the present invention can be similarly applied to the second and third type of gaming machines.

[0087]

The effects of the present invention are as follows.

According to the first aspect of the present invention, the game state detecting means
The stage detects that the game has not been playing for a predetermined time.
If the state is detected, the display active means
Since the predetermined game display is continuously performed, the game is played.
The image is not fixedly displayed even if it is not
No image burning occurs and good image quality is maintained.
Can be.

According to the second aspect of the present invention, the voltage drop detection
Output means, the power supply voltage of the gaming machine is below a predetermined voltage value
When the voltage drop is detected, the liquid crystal
Liquid crystal molecules of all pixels are aligned in one direction by display erasing means
To erase the LCD display.
Is prevented and good image quality can be maintained.
You.

According to the third aspect of the present invention, a normal game
The game has not been played for a predetermined time even if the display is displayed.
If the game state is detected,
Because the predetermined game display is continuously performed, the liquid crystal display
It is constantly refreshed to prevent burning.

According to the fourth aspect of the invention, the spontaneous polarization
The ferroelectric liquid crystal as the liquid crystal with the memory characteristics shown
LCD display with excellent characteristics such as high-speed response
While preventing burn-in and maintaining good image quality.
It is.

[0092]

[0093]

[Brief description of the drawings]

FIG. 1 is a front view of a gaming board of a pachinko gaming machine.

FIG. 2 is a block diagram illustrating a configuration example of a gaming machine control device according to the embodiment.

FIG. 3 is a block diagram showing a configuration of a main part for controlling a liquid crystal display device of a gaming machine including the liquid crystal display device according to the present invention.

FIG. 4 is a block diagram showing a main part configuration of another embodiment for controlling a liquid crystal display device of a gaming machine having the liquid crystal display device according to the present invention.

FIG. 5 is a general flowchart showing a control processing procedure performed by a main control board and an auxiliary control board of the embodiment.

FIG. 6 is a flowchart showing a subroutine of a voltage drop detection processing procedure in the power failure monitoring processing in step 9 of FIG. 5;

7 is a flowchart showing a subroutine of a procedure for preventing burning of a liquid crystal screen by a game state detection process in step 10 of FIG. 5;

[Explanation of symbols]

13 CPU (display control means, liquid crystal display erasing means, game state detecting means, display active means) 14 power supply circuit 15 voltage drop detecting device (voltage drop detecting means) 16 LCD (liquid crystal display means) 49 liquid crystal driving device (liquid crystal driving means) ) 50 main control board 51 auxiliary control board 52 game state detection device (game state detection means)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G02F 1/133 G02F 1/141 A63F 7/02

Claims (4)

(57) [Claims] 1. A liquid crystal display means for performing game display using a liquid crystal having a memory characteristic showing spontaneous polarization, a liquid crystal drive means for driving the liquid crystal display means, and a display control means for controlling display of the liquid crystal drive means. And a liquid crystal display device having
A gaming state that detects a state in which no gaming has been performed for a predetermined time in a gaming machine .
Detecting means for detecting a state in which the game has not been performed for a predetermined time;
A game having a liquid crystal display device , comprising: display active means for continuously performing a predetermined game display.
Machine . 2. The power supply voltage of the gaming machine is equal to or less than a predetermined voltage value.
Voltage drop detecting means for detecting that the liquid crystal molecules have fallen, and when detecting the voltage drop, the liquid crystal molecules of all the pixels are aligned in one direction.
2. A liquid crystal display device according to claim 1, further comprising a liquid crystal display erasing means for erasing the liquid crystal display.
Game machine with a display. 3. The normal game table according to claim 3, wherein
The game has not been played for a predetermined time even if
Is detected, the predetermined game display is displayed
3. The liquid crystal display according to claim 1, wherein
A gaming machine equipped with a display device. 4. A liquid crystal having a memory characteristic indicative for spontaneous polarization, a gaming machine having a liquid crystal display device according to any one of claims 1 to 3, characterized in that the ferroelectric liquid crystal.