JP2005114893A - Controller of liquid crystal display device, and game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make display signals from a VDP corresponding to the conventional liquid crystal display device used as the performance device of a game machine correspond to a field sequential drive type liquid crystal display device with a simple circuit configuration. <P>SOLUTION: The VDP reads data of every one pixel (3 bits of R0, G0, B0 corresponding to the 3 pixels of RGB) in parallel out of data strings developed and stored in a VRAM as display images, and outputs the data to a converter. In the converter, by supplying only the specific pixel data in one pixel to the field sequential drive type liquid crystal display device FS-LCD, the FS-LCD performs display in the order of R-screen, G-screen, B-screen, and the converter turns on a backlight of the color corresponding to the display screen. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a control device for a liquid crystal display device that displays a plurality of element images and displays an image as a composite image of these element images, and a game machine including the same.

  As one of the game machines, a slot machine using a plurality of reels is known. Currently, a slot machine on the market is equipped with a production device. Among them, a liquid crystal display device is becoming mainstream as a production device.

  FIG. 14A shows a standard configuration example of a liquid crystal display device (LCD) and peripheral circuits in a conventional slot machine. In the figure, a VDP (Video Display Processor) is an image processing IC interposed between the CPU and the LCD. When a command is given from the CPU, a specific character pattern is read from the CGROM (Character Generator ROM). , The data is expanded to VRAM (Video RAM), and these data are output to the LCD.

  A plurality of types of character patterns are stored in advance in the CGROM, and when a character code is output from the VDP to the CGROM, a corresponding character pattern is output. The VRAM stores a bitmap image obtained by synthesizing the output character pattern and palette data, and the VDP outputs data read from the VRAM to the LCD. The palette data is data for determining the color and tone of each pixel (one pixel may be composed of RGB or may be composed of a single color), and is stored in the VRAM. Yes.

  In the figure, R0, G0, and B0 output from the VDP to the LCD indicate R, G, and B data (R: 1 bit, G: 1 bit, B: 1 bit), and signals transmitted simultaneously. (Signal transmitted in parallel). HSYNC (horizontal synchronization signal) is a signal for timing the display in the horizontal direction of the screen. VSYNC (vertical synchronization signal) is a signal for timing the display in the vertical direction of the screen. DCLK (dot clock) is a signal indicating the display timing of one pixel.

  Here, a process of operating the liquid crystal display device by the above-described display control will be described with reference to FIG. The left side of the figure shows the correlation of the generation timings of HSYNC (horizontal synchronization signal), VSYNC (vertical synchronization signal), and DCLK (dot clock). One pixel consisting of three pixels of R, G, and B is represented by DCLK. Each time it is output, the transition to the next line by the pixel display for one line is performed in synchronization with HSYNC, and the transition to the next screen when the scanning for the predetermined line is completed (drawing for one screen is completed) becomes VSYNC. Done synchronously.

  The structure of three elements R, G, and B (one element corresponds to one pixel) constituting each pixel in the liquid crystal display screen is as shown on the right side of the figure. That is, two polarizing filters are arranged on the outermost layer, a glass substrate is arranged on the inner side, transparent electrodes are further arranged on the inner side, and a liquid crystal layer (TN (Twisted Nematic)) is arranged between the transparent electrodes. Liquid crystal) is enclosed. The two polarizing filters are arranged so that the polarization directions are perpendicular to each other.

  In normal times (when no voltage is applied between the two transparent electrodes), the orientation of the liquid crystal molecules inside is still twisted, and the backlight (white light) incident from below is aligned along the liquid crystal molecules. It rotates 90 °, passes through the upper polarizing filter, and is emitted upward. On the other hand, when a voltage is applied between the two transparent electrodes, the internal liquid crystal molecules are twisted, and the white light of the backlight incident from below cannot pass through the upper polarizing filter.

  Further, a color filter is disposed between the upper glass substrate and the transparent electrode. That is, a red color filter is arranged for the R element, a green color filter is arranged for the G element, and a blue color filter is arranged for the B element. In this way, by providing color filters corresponding to R, G, and B of the element, when the alignment state of the liquid crystal molecules and the transmission characteristic of the upper polarizing filter are in a light transmission state (between the transparent electrodes) In a normal state where no voltage is applied, a color corresponding to the color of the color filter appears on the element surface.

  Note that an active matrix drive type LCD (TFT liquid crystal or the like) that allows a high-speed display operation is generally used as an effect device for a game table with a moving image display, and an active matrix drive is used for a VDP for display control. Various know-how in control corresponding to the type LCD is accumulated.

  On the other hand, as a color liquid crystal display device that does not require a color filter, a field sequential drive type liquid crystal display device (FS-LCD) has recently appeared (for example, see Patent Document 1).

JP 2002-211702 A

  As shown in FIG. 15, the outline of the liquid crystal display device using the field sequential driving method as described in the above-mentioned Patent Document 1 displays, for example, one color image by time division into three for each RGB. In addition, the backlight is sequentially switched to red (R), green (G), and blue (B) according to the display image. As described above, in the field sequential driving method, one pixel can be configured by one pixel, and unlike the conventional color display, it is not necessary to configure one pixel by three RGB pixels. Thus, the pixel density is tripled. In addition, the field sequential driving method has a feature that high luminance can be easily obtained as compared with the conventional liquid crystal driving method using a color filter because the backlight can be emitted as it is from the element surface. For this reason, the field sequential drive system has recently been attracting attention.

  However, in order to control a field sequential drive type liquid crystal display device, it is necessary to design a dedicated control device from scratch, and a conventional LCD VDP or the like cannot be used as it is.

  In addition, when performing gradation expression on a field sequential drive type liquid crystal display device, it can be realized by changing the transmittance of pixels (applied voltage between transparent electrodes) as in the case of a conventional LCD. A novel gradation control method that can be applied has not been proposed. Note that, as one of the methods for performing gradation expression in a field sequential liquid crystal display device, a pixel having the maximum transmittance for each color in one field period constituting one image is selected, and the luminance for this pixel is selected. A method has been proposed in which the backlight is gradation-controlled so that the signal is 100% and the power consumption of the backlight is suppressed by correcting the transmittance of each pixel of the liquid crystal (for example, Patent Document 2). reference).

JP 2000-214827 A

  However, in the conventional technique described in Patent Document 2, it is necessary to control the transmittance of the liquid crystal together with the luminance control of the backlight, which may complicate the control circuit. Realization is considered more difficult from technology. In addition, the gradation display employs a technology for controlling the transmittance of the liquid crystal as in the conventional LCD, and does not perform gradation expression utilizing the characteristics of the field sequential drive system.

  In view of the above problems, the present invention provides a control device for a liquid crystal display device capable of performing field sequential driving of the liquid crystal display device without using a complicated circuit configuration, and a game machine using the same. An object of the present invention is to provide a control device for a liquid crystal display device capable of providing a novel gradation expression focusing on the characteristics of the field sequential drive method and a game machine using the same.

  In order to solve the above-described problems, the following problems occur when the driving method of the liquid crystal display device is changed from the conventional method to the field sequential driving method. That is, in the conventional liquid crystal driving method, RGB signals are simply output as parallel signals from VDP, so in order to change to the field sequential driving method, as shown in FIG. 16, RGB signals output from VDP are used. Once the signal is input to the buffer, one screen is stored, and then the R, G, and B signals for this screen are sequentially output (red screen, green screen, and blue screen are output in chronological order). Although a method is assumed, in this case, it is necessary to increase the buffer memory, and it is also necessary to extract R, G, and B signals from the buffer. That is, in order to use VDP, which is a large asset for driving control of the conventional liquid crystal display device, as it is, the accompanying circuit configuration becomes complicated.

  In other words, the present invention does not simply allow the conventional VDP for LCD display control to be used for the display control of the FS-LCD, but the VDP which is an asset of the conventional display control technology with the simple circuit configuration. -There is technical value in that it corresponds to LCD control.

  In order to solve the above-described problems, the invention according to claim 1 is a control device for a liquid crystal display device that displays a plurality of element images and displays an image as a composite image of these element images. An image memory that stores the element image data in units of pixels, an image display control unit that can read out the image data from the image memory and output the data in units of pixels, the image display control unit, and the liquid crystal display device A selection unit that selects and outputs specific element image data from the given pixel unit image data, and a backlight according to the selection switching of the element image data by the selection unit. Backlight control means for lighting, and the image display control means performs a process of reading the image data from the image memory and outputting the data to the selection means in units of pixels. By repeating the number of element images for each area, the selection means switches the selection of element image data for each screen, and the backlight control means controls the lighting of the backlight for each screen. The liquid crystal display device can be field-sequentially driven.

  According to a second aspect of the present invention, there is provided a control device for a liquid crystal display device that displays a plurality of element images having different emission colors and displays a color image as a composite image of the element images. An image memory in which color data is stored in units of pixels, an image display control unit capable of reading out the image data from the image memory and outputting in units of pixels, and interposed between the image display control unit and the liquid crystal display device In addition, a selection unit that selects and outputs specific element image data from the given pixel unit image data, and the color data of the element image is switched in accordance with the selection switching of the element image data by the selection unit. Backlight control means for changing to a backlight with a corresponding lighting color, and the image display control means reads out the image data from the image memory and outputs a single pixel. The process of outputting to the selection means is repeated for each screen by the number of element image types, the selection means switches the selection of element image data for each screen, and the backlight control means It is characterized in that color display by field sequential driving is made possible by changing the backlight to a lighting color corresponding to the color data of the element image for each screen.

  According to a third aspect of the present invention, there is provided a control device for a liquid crystal display device that displays a plurality of element images using a single color or a plurality of color backlights and displays an image as a composite image of the element images. Included in the image data is an image memory in which gradation data of at least each elemental image is stored as data in units of pixels, image display control means capable of reading the image data from the image memory and outputting the data in units of pixels A gradation control memory storing the lighting time of the backlight for each kind of gradation data of each element image, and an image in a given pixel unit interposed between the image display control means and the liquid crystal display device A selection means for selecting and outputting specific element image data out of the data, and reading from the gradation control memory in accordance with switching of selection of element image data by the selection means Backlight control means for turning on the backlight for the backlight lighting time corresponding to the gradation data of the element image, and the image display control means reads out the image data from the image memory and outputs a pixel. The process of outputting to the selection unit in units is repeated for each screen by the number of element images, the selection unit switches the selection of element image data for each screen, and the backlight control unit By controlling the backlight lighting time for each screen with reference to the tone control memory, it is possible to perform field sequential drive and tone control of the liquid crystal display device.

  According to a fourth aspect of the present invention, in the control device for a liquid crystal display device according to the third aspect, the image memory stores monochromatic image data including brightness of each elemental image as gradation data. The backlight control means refers to the gradation control memory and controls the lighting time of the backlight for each screen, thereby adjusting the luminance gradation on the image displayed as a composite image of each element image. It is characterized by being born.

  According to a fifth aspect of the present invention, in the control device for a liquid crystal display device according to the third aspect, the image memory stores color image data including the emission color and brightness of each element image as gradation data. The backlight control means refers to the image memory and the gradation control memory, selects the backlight corresponding to the emission color for each screen, and controls the lighting time of the backlight. Thus, a mixed color gradation is generated in an image displayed as a composite image of each element image.

  According to a sixth aspect of the present invention, there is provided a color display control function in the control device of the liquid crystal display device according to the second aspect, and the liquid crystal display device according to any one of the third to fifth aspects. In addition to having a gradation control function in the control device, it has a function switching means capable of arbitrarily switching both functions.

  The invention according to claim 7 is a gaming machine equipped with the control device according to any one of claims 1 to 6, wherein the gaming machine is controlled by the control device. A liquid crystal display device, a plurality of reels provided with a plurality of types of patterns, a start switch for starting the rotation of the reels, and corresponding to each of the reels, the rotation of the reels are individually stopped. And a lottery means for determining whether or not an internal winning of a predetermined winning combination is won by lottery, and the picture displayed by the reel at the time of stopping when the winning combination is won internally. When the combination is a combination of pictures previously determined corresponding to the internal winning winning combination, the winning combination is won.

  According to the control device of the liquid crystal display device of the first aspect, the image display control unit repeats the process of outputting the image data to the selection unit in units of pixels for each screen by the number of element images. Since the selection means switches the selection of the element image data for each screen and outputs it to the liquid crystal display device, the liquid crystal display device can collectively receive the data for each element image, and the element images are time-sequentially received. In addition to this, the backlight control unit controls lighting of the backlight for each screen, so that field sequential driving of the liquid crystal display device is realized. That is, even if a conventional LCD control VDP that outputs image data in pixel units is used as an image display control means, a conversion means that can be easily configured without requiring a complicated circuit configuration including a large-capacity buffer or the like. And the control device of the liquid crystal display device can be realized by the backlight control means.

  According to the control device for a liquid crystal display device according to claim 2, the image display control means repeats the process of outputting the image data to the selection means in units of pixels for each screen by the number of types of element images. The selection means that receives the selection switches the selection of the element image data for each screen and outputs it to the liquid crystal display device. Therefore, the liquid crystal display device can collectively receive the data for each element image and increase the element increase. At the same time, the backlight control means changes the backlight to a lighting color corresponding to the color data of the element image for each screen. Color display by field sequential driving is realized. That is, even if a conventional color LCD control VDP that outputs image data in units of pixels is used as an image display control means, a conversion that can be easily configured without requiring a complicated circuit configuration including a large-capacity buffer or the like. The control device for the liquid crystal display device capable of color display can be realized by the means and the backlight control means.

  According to the control device for a liquid crystal display device according to any one of claims 3 to 5, the image display control unit repeats the process of outputting the image data to the selection unit in units of pixels for each screen by the number of element images. In response to this, the selection means switches the selection of the element image data for each screen and outputs it to the liquid crystal display device. Therefore, the liquid crystal display device can collectively receive the data for each element image and increase the element increase. In combination with this, the backlight control means refers to the gradation control memory, and controls the backlight lighting time for each screen, whereby the liquid crystal Field sequential drive and gradation control of the display device are realized. That is, even if a conventional LCD control VDP that outputs image data in pixel units is used as an image display control means, a conversion means that can be easily configured without requiring a complicated circuit configuration including a large-capacity buffer or the like. Further, a control device for a liquid crystal display device capable of expressing gradation can be realized by the backlight control means.

  According to the control device of the liquid crystal display device of the sixth aspect, the color switching control function and the gradation display control function can be arbitrarily switched by the function switching means, so that the range of display by the liquid crystal display device is widened. Therefore, if this liquid crystal display device is used as an effect device for a game stand and the function is switched according to the effect operation, the effect can be enhanced.

  According to the gaming table according to claim 7, the field sequential can be achieved without redesigning the control device of the liquid crystal display device used as the conventional rendering device from scratch, or using a complicated additional circuit or a large capacity buffer. It becomes easy to divert to a control device of a drive type liquid crystal display device. Therefore, by utilizing the traditional VDP, which is an asset that accumulates various know-how in display control technology, a high-definition and high-intensity field sequential drive type liquid crystal display device can be used as a stage device for a game machine. High practical value.

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

<Overall configuration>
FIG. 1 is an external perspective view of a slot machine 100 provided with a control device for a liquid crystal display device according to the present invention.

  In the center of the main body 101 of the slot machine 100 shown in FIG. 1, three reels (a left reel 110, a middle reel 111, and a right reel 112) having a plurality of types of patterns arranged on the outer peripheral surface are stored. It is configured to be able to rotate inside. In this embodiment, each picture is printed on a belt-like member at an appropriate interval (for example, 21 pictures), and this belt-like member is attached to a predetermined circular frame member to constitute each reel 110-112.

  When viewed from the player, three symbols on the reels 110 to 112 are displayed in the vertical direction from the symbol display window 113 provided on the reel panel 161 so that a total of nine symbols can be seen. Then, by rotating each of the reels 110 to 112, the combination of the patterns that can be seen by the player varies. In the present embodiment, three reels are provided in the center of the slot machine 100, but the number of reels and the installation position of the reels are not limited to this.

  A backlight (not shown) for illuminating each picture displayed on the picture display window 113 is disposed on the back of each reel 110 to 112. It is desirable that the backlight is shielded for each pattern so that each pattern can be illuminated evenly. In the slot machine, an optical sensor composed of a light projecting part and a light receiving part is provided in the vicinity of each reel, and the space between the light projecting part and the light receiving part of the optical sensor is provided on the reel. The light shielding piece of a certain length passes through. Based on the detection result of the sensor, the position of the pattern on the reel in the rotation direction is determined, and the reels 110 to 112 are stopped so that the target pattern is displayed on the winning line 114.

  The winning line display lamp 120 is a lamp that indicates an effective winning line. An effective pay line is determined in advance by the number of game media (in this embodiment, medals are assumed) inserted into the slot machine 100. For example, when a single medal is inserted, the middle horizontal winning line is valid, and when two medals are inserted, three of the upper horizontal winning line and the lower horizontal winning line are valid, and the medal is When three cards are inserted, five lines including a right-down winning line and an upper-right winning line are valid as winning lines. Note that the number of winning lines is not limited to five, and the setting of valid lines based on the number of inserted medals is also arbitrary.

  The start lamp 121 is a lamp that informs the player that the reels 110 to 112 are in a state of being able to rotate. The re-game lamp 122 is a lamp for notifying the player that the current game can be re-played (no medal insertion is required) when a re-game, which is one of the winning combinations in the previous game, is won. . The notification lamp 123 is a lamp that informs the player that a specific winning combination (specifically, a bonus such as a big bonus or a regular bonus) is won internally in an internal lottery described later. The medal insertion lamp 124 is a lamp that notifies that a medal can be inserted. The reel panel lamp 128 is an effect lamp. The medal insertion buttons 130 and 131 are buttons for inserting a predetermined number of medals stored electronically in the slot machine 100.

  In this embodiment, every time the medal insertion button 130 is pressed, a maximum of three are inserted one by one, and when the medal insertion button 131 is pressed, three are inserted. The medal slot 134 is an slot for a player to insert a medal when starting a game. That is, a medal can be inserted electronically by operating the medal insertion button 130 or the medal insertion button 131, or an actual medal can be inserted from the medal insertion slot 134.

  The payout number display 125 is a display for displaying the number of medals to be paid out to the player as a result of winning a winning combination. The game number display 126 is a display for displaying the number of games during the big bonus game (in the BB game), the number of winnings of a predetermined winning combination, and the like. The stored number display 127 is a display for displaying the number of medals electronically stored in the slot machine 100.

  The start lever 135 is a lever for starting the rotation of the reels 110 to 112. That is, when a desired medal number is inserted into the medal insertion slot 134 and the start lever 135 is operated, the reels 101 to 112 start to rotate.

  The stop button unit 136 is provided with stop buttons 137 to 139. The stop buttons 137 to 139 are buttons for individually stopping the reels 110 to 112 that have started rotating by operating the start lever 135. Note that a light emitter may be provided in each of the stop buttons 137 to 139, and when the stop buttons 137 to 139 can be operated, the light emitter can be turned on to notify the player.

  The storage / settlement button 132 settles the medals electronically stored in the slot machine 100 and discharges them to the tray 500 from the medal payout outlet 155, and the four or more sheets inserted into the medal slot 134. This is a button for switching between a storage function for electronically storing up to 50 medals and medals obtained by winning. The medal payout port 155 is a payout port for paying out medals, and the medal tray 500 is a container for collecting medals paid out from the medal payout port 155.

  The medal return button 133 is a button that is pressed to remove a medal when the inserted medal is jammed. The door key 140 is a hole into which a key for unlocking the front door 102 of the slot machine 100 is inserted. The sound hole 160 is a hole for outputting the sound of a speaker provided inside the slot machine 100 to the outside. The upper lamp 150, the side lamp 151, the center lamp 152, the waist lamp 153 and the lower lamp 154 provided on both sides of the title panel 162 are decorative lamps for exciting the game.

  The liquid crystal display device 600 is a display for displaying internal information and the like of the slot machine 100, and also plays a role as an effect device for exciting the fun of the game. The liquid crystal display device 600 is of a field sequential drive system, and specific display control will be described later.

<Control part>
The configuration of the control unit of the slot machine 100 will be described with reference to FIG. The control unit in the present embodiment includes a main control unit 300 that controls the whole, a sub-control unit 400 that performs control related to effects for exciting games, and a liquid crystal display control unit that controls the liquid crystal display device 600 (not shown). ).

<Main control unit 300>
The microprocessor (hereinafter referred to as “Main CPU”) 310 serves as a center of control in the slot machine 100, and exchanges control signals and data with peripheral units via the bus 370.

  The random number generator 311 generates a random number, and includes a plurality of counters, a clock oscillator, a frequency divider, a latch circuit, and the like. The random value generated by the random number generator 311 is stored in the random number storage area of the RAM 313 via the bus 370 and is sent to the Main CPU 310 as necessary. There are a plurality of types of random number values, and each is used according to the processing content.

  The main CPU 310 has a medal sensor 320 that detects a medal inserted from the insertion slot of the medal insertion block 134 via the input interface 360 and the bus 370, a start lever sensor 321 that detects an operation of the start lever 135, and stop buttons 137 to 137. When any one of 139 is pressed, a stop button sensor 322 for detecting which stop button is pressed, and when any of the medal insertion buttons 130 and 131 is pressed, which medal insertion button is pressed Are connected to a medal insertion button sensor 323 and a settlement button switch 324 that operates when the settlement button 133 is pressed.

  A ROM (read-only memory) 312 is one of storage means for storing programs for performing various controls, various table data to be described later, and the like. A RAM (Random Access Memory) 313 has a work area for programs processed by the Main CPU 310 and is one of storage means for storing variable data and the like.

  The input / output interface 332 includes a motor control unit 330 that controls a motor (not shown) that rotates and stops the reels 110 to 112 and a hopper control unit 331 that controls a medal payout device (so-called hopper: not shown). The main CPU 310 is connected to the main CPU 310 via the bus 370.

  The effect lamps / displays 340 include various types of lamps such as the winning line display lamp 120, the start lamp 121, and the replay lamp 122 shown in FIG. 1, the payout number display 125, the game number display 126, and the like. The display is collectively shown, and is connected to the Main CPU 310 via the output interface 342 and the bus 370.

  The output interface 350 transmits various commands to the input interface 440 of the sub-control unit 400 based on instructions from the Main CPU 310. The type of command will be described in detail later.

<Sub-control unit 400>
The microprocessor (hereinafter referred to as SubCPU) 410 receives various commands transmitted from the main control unit 300 via the input interface 440 and the bus 430, and controls the sub-control unit 400 as a whole according to the contents of the received commands. To do.

  The ROM 411 is one of storage means for storing programs and data for controlling the sub-control unit 400 as a whole. The RAM 412 has a work area for programs processed by the SubCPU 410, and is one of storage means for storing variable data and the like.

  The backlight 420 is a light that illuminates the design of the reel, and is turned on / flashing / turned off in accordance with an instruction from the SubCPU 410. The effect lamp 421 collectively represents the upper lamp 150, the side lamp 151, the center lamp 152, the waist lamp 153, the lower lamp 154, and the saucer lamp 500, and is lit / flashed / extinguished according to instructions from the SubCPU 410. The backlight 420 and the effect lamp 421 are connected to the SubCPU 410 via the bus 430 via the output interface 422.

  The sound source signal forming unit 460 forms and outputs a sound source signal based on the control signal and data delivered from the SubCPU 410. The sound source signal is amplified by an amplifier 461 and then output as sound from a speaker (specifically, an upper speaker and a central speaker) 462.

  The output interface 450 transmits various control data to a liquid crystal display control unit (not shown) based on an instruction from the SubCPU 410. Based on this control data, the liquid crystal display control unit controls the liquid crystal display device 600.

<Basic game control>
FIG. 3A is a flowchart showing main processing performed by the main control unit 300 in the slot machine 100 of the present embodiment. Basic control of the game is performed mainly by the Main CPU 310, and the game process shown in FIG.

  In S101, processing relating to medal insertion is performed. Here, it is checked whether or not medals have been inserted, and the winning line display lamp 120 is turned on according to the number of medals inserted. It is not necessary to insert a medal when winning the re-game in the previous game.

  In S102, processing relating to reception of a game start operation is performed. Here, it is checked whether or not the start lever 135 has been operated. If it is determined that the start operation has been performed, the number of inserted medals is determined. In S103, a valid pay line 114 is determined.

  In S104, the random number generated by the random number generator 311 is acquired.

  In S105, the winning combination lottery is performed using the random number value acquired in S104 and the winning combination lottery table stored in the ROM 312.

  In S106, the lottery process for determining the production | presentation operation | movement according to the lottery result of the winning combination in said S105 is performed.

  In S107, the rotation of all reels 110 to 112 is started.

  In S108, the stop buttons 136 to 138 can be received, and when any of the stop buttons is pressed, one of the reels 110 to 112 corresponding to the pressed stop button is stopped based on the reel stop control table. Let

  In S109, a winning determination is performed. Here, when a combination of symbols corresponding to the winning combination is displayed on the activated winning line 114, it is determined that the winning combination is a winning combination. For example, if “bell-bell-bell” is arranged on the validated winning line 114, it is determined that the bell is won. In addition, if “7-7-7” is prepared, it is determined that a BB winning is achieved. The winning result is stored as a winning result code.

  In S110, if any winning combination with payout is won, the number of medals corresponding to the winning combination is paid out.

  In S111, game state control processing is executed. In this game state control process, control for shifting the type of game is performed. For example, in the case of winning a BB game, preparation is made so that the BB game can be started from the next time. Prepare to start the game.

  As described above, one game is completed, and the game progresses by repeating this thereafter.

  FIG. 3B shows an effect process performed mainly by the SubCPU 410 of the sub control unit 400. In this effect process, unless the sub CPU 410 detects a power failure or the like, the effect process in FIG. Hereinafter, this effect process will be described.

  In S201, it is determined whether a command sent from the main control unit 300 is received. If a command is received, the process proceeds to S202.

  In S202, the contents of the received command are analyzed.

  In S203, display control is performed on the liquid crystal display control unit or an appropriate sound effect is output from the speaker 462 so as to perform an effect operation according to the analyzed command.

<First Embodiment of Control Device for Liquid Crystal Display Device>
Next, a liquid crystal display control unit that controls the operation of the liquid crystal display device 600 will be described in detail.

  FIG. 4 shows an outline of the control performed by the liquid crystal display control unit. As shown in FIG. 4A, from the data sequence developed and stored as a display image in the VRAM, data for each VDP pixel (R0, G0, B0 3 bits corresponding to RGB 3 pixels) is obtained. The data is read in parallel and output to the converter. The converter outputs only specific pixel data (for example, only R) in one pixel to the liquid crystal display device (field sequential liquid crystal FS-LCD).

  Thus, since the R data of the pixel columns constituting one screen is supplied to the FS-LCD, the FS-LCD can constitute an R screen having the R data as one pixel. Similarly, if the converter outputs only the G data in one pixel to the FS-LCD, the FS-LCD can form a G screen with the G data as one pixel, and the converter only converts the B data in one pixel to the FS-LCD. If output to the LCD, the FS-LCD can constitute a B screen with B data as one pixel. Since it is necessary to construct one original screen from the composite image of the R screen, B screen, and G screen, the VDP pixel transfer rate is tripled (180 Hz if the normal display is 60 Hz) to the converter. Output pixel data.

  As described above, the FS-LCD that has received R data, G data, and B data from the converter in turn turns on the red backlight at the timing when the R screen (first element image for red display) is drawn. The first screen is displayed, the second screen is displayed by turning on the green backlight at the timing when the G screen (second element image for green display) is drawn, and the B screen (for blue display) When the third screen is displayed by turning on the blue backlight at the time when the third element image is drawn, an original screen in which the three RGB element images are overwritten on the same plane by time-division scanning is rendered. (See FIG. 4B).

  A schematic configuration of the above-described liquid crystal display control unit is shown in FIG.

  The VDP 701 is a control IC dedicated to image processing and is controlled by the CPU 702. The main operation of the VDP 701 is to transfer CG data from the CGROM 703 to the VRAM 704, process and combine the CG data on the VRAM 704 and the palette data, and display an RGB pixel row (see FIG. 5B) in the drawing area on the VRAM 704. Drawing is performed, and R0, G0, B0, which are data for one pixel, a vertical synchronization signal VSYNC, a horizontal synchronization signal HSYNC, and a dot clock DCLK are output to the converter 705.

  Note that the VRAM 704 functions as an “image memory in which image data is stored in units of pixels including data of a plurality of element images”. “Image display control means capable of reading out image data from the image memory and outputting it in units of pixels” General-purpose ICs such as VDP 701, CPU 702, and CGROM 703 that function as FS-LCD 600 are configured to be connectable to a VGA (or QVGA) liquid crystal display, and from a group of signals for driving a normal liquid crystal display. Function for converting the signal into a signal for driving the image (selection means interposed between the image display control means and the liquid crystal display device for selecting and outputting specific elemental image data from the given pixel unit image data ) And a function for controlling the lighting of the backlight (RGB) (in accordance with the selection switching of the element image data by the selection means, Backlight control means) for turning on the backlight, the converter 705 is responsible.

  The signal waveform received by the converter 705 from the VDP 701 is shown in FIG. During one frame until the vertical synchronization signal VSYNC is turned on with negative logic, the horizontal synchronization signal HSYNC is output (negative logic) at a timing corresponding to the number of horizontal scans, and is synchronized with the dot clock DCLK which is the drawing timing of one dot. Then, the pixel data of R0, G0, B0 is sent out.

  FIG. 6B shows signal waveforms output from the converter 705 to the FS-LCD 600 and the backlight. Converter 705 converts any of R0, G0, and B0 received from VDP 701 into an 8-bit parallel signal (D0 to D7), and transmits SP, which is a strobe signal for each 8 bits, to FS-LCD 600 together with the transmission. By doing so, the FS-LCD 600 takes in data every 8 bits, and at the timing when data transmission for one screen (data transmission for one element image which is the R screen, G screen, or B screen described above) is completed, the LP is output. In the FS-LCD 600 that receives this LP and receives the LP, the data for one screen is latched by the liquid crystal driver, the drive for each pixel is executed, and the screen is displayed. In this embodiment, since the standard digital RGB output VDP 701 is used, the converter 705 is provided with a function of performing S / P conversion by 8 bits in order to match the interface conditions with the FS-LCD. .

  Then, after a lapse of a predetermined time (for example, 1 to 2 ms) in consideration of the operation delay of the liquid crystal accompanying the screen display of the FS-LCD 600, a display control signal (RL, GL, BL) is sent out to operate the switching elements, and the LEDs of the respective colors are turned on. When R0 for one screen, G0 for one screen, and B0 for one screen have been sent, the original display of one screen has ended, so converter 705 sends the B-END signal to the CPU 702 interrupt. Output as a signal and request an image update. As a result, the CPU 702 instructs the VDP 701 to update the screen, and the pixel column of the next screen is supplied from the VDP 701 to the converter 705.

  Here, a configuration example of the conversion means in the converter 705 described above will be described with reference to FIG. Each output of the first AND gate with R0 as one input, the second AND gate with G0 as one input, and the third AND gate with B0 as one input is the three inputs of the OR gate, and the output of the OR gate Is supplied to the serial-parallel conversion circuit. The other input of the first AND gate is supplied with an output signal of a NAND gate having two inverted outputs of the Q output of the first D flip-flop DFF1 and the Q output of the second D flip-flop DFF2, as φR. The Q output of the first D flip-flop DFF1 is supplied as φG to the other input, and the Q output of the second D flip-flop DFF2 is supplied as φB to the other input of the third AND gate. The NAND gate output is input to the D input of the first D flip-flop DFF1, and the Q output of the first D flip-flop DFF1 is input to the D input of the second D flip-flop DFF2. These first and second D flip-flops DFF1. , DFF2 is supplied with a vertical synchronization signal VSYNC.

  An example of the signal waveform in the conversion means having the above configuration is shown in FIG. For example, when the Q output of the second D flip-flop DFF2 is ON, φB is at a high level, so B0 is sequentially output from the third AND gate, and an 8-bit parallel signal (D0 to D7) is output from the serial-parallel conversion circuit. When the vertical synchronization signal VSYNC is turned ON with negative logic in the state of being converted to FS-LCD 600 and being output to the FS-LCD 600, the rising edge of this pulse triggers the first D flip-flop DFF1 whose D input is at a high level. As the Q output is turned ON and φR becomes high level, R0 is sequentially output from the first AND gate, converted into 8-bit parallel signals (D0 to D7) by the serial-parallel conversion circuit, and FS-LCD600. Is output.

  When the next vertical synchronization signal VSYNC is turned on with negative logic, the rising edge of this pulse triggers the Q output of the second D flip-flop DFF2 whose D input is at a high level, and φG becomes a high level. Accordingly, G0 is sequentially output from the first AND gate, converted into an 8-bit parallel signal (D0 to D7) by the serial-parallel conversion circuit, and output to the FS-LCD 600.

  When the next vertical synchronization signal VSYNC is turned ON with negative logic, the pulse output of the second D flip-flop DFF2 whose D input is at the low level is turned OFF, and the Q output of the first D flip-flop DFF1 is turned off with this pulse rising as a trigger. Since both the output and the Q output of the second D flip-flop DFF2 are OFF, the output of the NAND gate is turned ON, and B0 is sequentially output from the third AND gate as φB becomes high level. The signal is converted into an 8-bit parallel signal (D0 to D7) by the conversion circuit and output to the FS-LCD 600.

  That is, in the conversion means having the above configuration, a parallel signal to be output to the FS-LCD 600 in synchronization with the vertical synchronization signal VSYNC, which is a drawing cycle of one screen, is not provided with a large-capacity buffer or a complicated control function. → G0 → B0 → R0... Can be sequentially changed. As described above, the vertical synchronization signal VSYNC does not conform to the normal refresh rate. When displaying three types of RGB element images as in the present embodiment, three images must be drawn within the original refresh rate, so the frequency of the vertical synchronization signal VSYNC supplied from the VDP 701 to the converter 705 is The VDP 701 is operated at high speed so as to be three times (the cycle is 1/3).

  In addition, the converter 705 needs to perform backlight on / off control in conjunction with the display of the element image on the FS-LCD 600. The control timing of the backlight from the converter 705 is, as shown in the waveform diagram of FIG. 8B, immediately before the vertical synchronization signal VSYNC is turned on with negative logic (for example, a latch pulse indicating completion of data transfer for one screen). The backlight is turned off at the timing of output), and then the next backlight is turned on after a predetermined time (for example, 1 to 2 ms) in which the response time of the liquid crystal is expected.

  For example, as shown in FIG. 6B, when a green screen is displayed on the FS-LCD 600, the converter 705 turns on the GL to turn on the green backlight G. During this time, pixel data of the same screen is supplied from the VDP 701 to the converter 705, and only B data therein is supplied to the FS-LCD 600. When the B screen data is transferred from the VDP 701 to the converter 705 and the LP is turned on (for example, at the falling edge of the pulse), the B data transmission for one screen is completed from the converter 705 to the FS-LCD 600. Since the B screen is displayed on the FS-LCD 600, the converter 705 turns off GL and turns off the green backlight G. As the R data, G data, and B data of the same screen are transmitted to the FS-LCD 600, the converter 705 transmits a B-END signal to the CPU 702 to request data transfer of the next screen.

  Then, when a predetermined standby time has elapsed after the FS-LCD 600 starts displaying the B screen, the converter 705 turns on the BL and turns on the blue backlight B. During this time, the pixel data of the next screen is supplied from the VDP 701 to the converter 705, and the converter 705 supplies only the R data therein to the FS-LCD 600. Then, when the R screen data transfer from the VDP 701 to the converter 705 ends and the LP is turned on, BL is turned off and the blue backlight B is turned off. In this way, the converter 705 transmits the screen color data to be displayed next to the FS-LCD 600 while performing the lighting control of the backlight of the screen color that has been transmitted to the FS-LCD 600. Note that the lighting timing and lighting timing of the backlight control performed by the converter 705 are not particularly limited. For example, the backlight lighting control is performed using the vertical synchronization signal VSYNC instead of the latch pulse signal LP. Also good.

  Note that the liquid crystal display control unit of the above-described embodiment has shown an example in which three elemental images of RGB are displayed in time series, and one color screen is displayed as a composite image thereof. However, the present invention is limited to this. It is not a thing. For example, it is possible to display one screen from two element images of R and G, two element images of R and B, or two element images of G and B, and W (white) is added to RGB. One screen may be displayed from four element images. Further, the backlight is not limited to the LED, and a cold cathode tube may be used.

<Second Embodiment of Control Device for Liquid Crystal Display Device>
The above-described liquid crystal display control unit has been shown to perform RGB three-color display. Next, a liquid crystal display control unit that performs gradation display in a single color will be described in detail.

  As shown in FIG. 9, the liquid crystal display control unit according to the second embodiment includes a VDP 801, a CPU 802, a CGROM 803, a VRAM 804, and a converter 805. These basic functions are the same as those of the liquid crystal display control unit of the first embodiment described above. However, as image data developed and stored in the VRAM 804, one pixel is obtained from element image data R0, R1, and R2 having a single red color. The converter 805 is different in that the red backlight R is turned on / off.

  Further, as shown in FIG. 10A, the configuration of the conversion means in the converter 805 is the same as the conversion means of the converter 705 described above, and both R0 and φR0 are supplied in synchronization with the vertical synchronization signal VSYNC. The state transitions to a state in which the first AND gate is opened, a state in which both R1 and φR1 are supplied and the second AND gate is opened, and a state in which both R2 and φR2 are supplied and the third AND gate is opened.

  The converter 805 stores the lighting time of the red backlight R in advance, and controls ON / OFF of the RL based on the lighting time. For example, when the first screen display based on the R0 data transmitted from the converter 805 to the FS-LCD 600 is displayed (first lighting), the lighting time is “1”, and the converter 805 transmits the FS-LCD 600 to the FS-LCD 600. When the second screen display based on the R1 data is displayed (second lighting), the lighting time is set to “1/2”, and the third screen display based on the R2 data transmitted from the converter 805 to the FS-LCD 600 is displayed. By setting the lighting time at the time of lighting (third lighting) to “1/4”, eight gradations corresponding to the total of the three lighting times can be realized (the gradation table of FIG. (See waveform diagram in FIG. 11).

  That is, if each element data for one pixel is R0 = 0, R1 = 0, and R2 = 0, the total lighting time is a gradation level 1 of 0 (off), and each element data for one pixel is R0. If = 0, R1 = 0, and R2 = 1, the total lighting time is 1/4 gradation level 1, and each element data for one pixel is R0 = 0, R1 = 1, R2 = 0. For example, the total lighting time is 2/4 = 1/2 gradation level 2, and if each element data for one pixel is R0 = 0, R1 = 1, R2 = 1, the total lighting time is 3 / 4 gradation level 3, if each element data for one pixel is R0 = 1, R1 = 0, R2 = 0, the total lighting time is 4/4 = 1 gradation level 4. If each element data for pixel is R0 = 1, R1 = 0, R2 = 1, the total lighting time is 5/4. If the tone level is 5 and each element data for one pixel is R0 = 1, R1 = 1, and R2 = 0, the total lighting time is 6/4 gradation level 6, and each element data for one pixel. If R0 = 1, R1 = 1, R2 = 1, the total lighting time is 7/4 gradation level 7.

  In this way, the lighting time of the red backlight is set to “1” for the element image R0 of the screen 1 that is turned on for the first time, and the lighting time of the red backlight is set for the element image R1 of the screen 2 that is turned on for the second time. Is set to “1/2”, and the converter 805 has a gradation control memory for setting the lighting time of the red backlight to “1/4” in the element image R2 of the screen 3 that is turned on for the third time. As a result, it is possible to represent a single color gradation according to the length of the lighting time of the backlight. In the present embodiment, the element image data R0, R1, and R2 indicate the display order (any of the first to third times), and therefore the element image data is treated as gradation data. It is assumed that the converter 805 determines the lighting time corresponding to the tone data. Further, for the gradation display, a green backlight G or a blue backlight B may be used, or a gradation display by white in which three colors of RGB are lit simultaneously may be used. Further, the number of element images to be displayed (the number of times the backlight is turned on) is not limited to three types R0 to R2, but may be two types, or four or more types, so that finer gradation display can be performed. . Moreover, it is good also as control which implement | achieves 4 gradations by 3 times display as the same lighting time, without performing the weighting which changes lighting time for every lighting frequency.

<Third Embodiment of Control Device for Liquid Crystal Display Device>
The liquid crystal display control unit of the first embodiment described above performs RGB three-color display, and the liquid crystal display control unit of the second embodiment performs monochrome gradation display. If the liquid crystal display control unit is also provided, its application range is further expanded. Hereinafter, the liquid crystal display control unit according to the third embodiment having both functions will be described in detail.

  The liquid crystal display control unit according to the third embodiment includes a VDP 901, a CPU 902, a CGROM 903, a VRAM 904, and a converter 905. These have the functions of the liquid crystal display control unit of the first embodiment and the liquid crystal display control unit of the second embodiment. That is, the VRAM 904 has a function of holding image data in which the element image data R0, G0, B0 for color display are developed for each pixel, and one element for the element image data R0, R1, R2 for gradation display. A function for holding the developed image data is provided, and the operation mode of the VDP 901 and the converter 905 is arbitrarily switched according to an instruction from the CPU 902.

  For example, the signal output from the P0 port of the CPU 902 to the MODE input of the converter 905 causes the converter 905 to be switched to the normal mode of color output or the gradation mode of single color output, and the backlight on / off control according to each mode is performed. Thus, color display and single color gradation display are realized. Note that the function of the selection means in the converter 905 is the same in both the normal mode and the gradation mode. In the single gradation mode, the CPU 902 switches the display backlight by the signal output from the P1 to P3 ports to the CC input of the converter 905, so that the R single gradation and the G single gradation are switched. And B can be changed to one of the single gradations.

  In the second embodiment described above, the lighting time of the backlight is fixedly stored in the gradation control memory. However, for example, gradation data obtained by weighting the lighting time for each display count can be rewritten. Then, by receiving the lighting control information corresponding to the new gradation data from the CPU 902, the gradation control memory may be rewritten so that gradation expression with a higher degree of freedom can be performed.

<4th Embodiment of the control apparatus of a liquid crystal display device>
In the second embodiment and the third embodiment described above, gradation expression in a single color is performed. However, the liquid crystal display control unit of the present embodiment can realize color display and gradation display using mixed colors. It is. The configuration of the liquid crystal display control unit according to the fourth embodiment can be substituted by the configuration of the second embodiment or the third embodiment, and can be dealt with by changing the gradation table of the gradation control memory of the converter. Hereinafter, backlight control (selection control of the backlight to be turned on and control of the lighting time) performed by the liquid crystal display control unit of the present embodiment will be described with reference to FIG.

  FIG. 13A shows a display surface of a liquid crystal display composed of four segments A, B, C, and D. By driving this liquid crystal display in a field sequential manner, one screen is displayed by three displays. Shall be. The backlight lighting time for the first and second display is “1”, and the backlight lighting time for the third display is “½”. In this figure, the state in which the backlight is transmitted is “liquid crystal ON”, and the state in which the backlight is not transmissive is “liquid crystal OFF”.

  First, in the example shown in FIG. 13B, only the segment D is ON in the first display, the red backlight is lit for the lighting time “1”, and the segments A and B are ON in the second display. Thus, the blue backlight is lit for the lighting time “1”, the segments A and C are turned ON in the third display, and the blue backlight is lit for the lighting time “1/2”. Thus, segment A has a blue lighting time “3/2”, segment B has a blue lighting time “1”, segment C has a blue lighting time “1/2”, and segment D has a red lighting time. Becomes “1”, and in addition to red and blue color display, blue gradation display can be realized.

  Next, in the example shown in FIG. 13C, only the segment D is ON in the first display, the blue backlight is lit for the lighting time “1”, and the segments B and C are displayed in the second display. ON, the red backlight and the green backlight are turned on at the same time for the lighting time “1”, and segments A and B are turned on at the third display, and the red backlight and the green backlight are turned on at the same time. Lights only 1/2 ". As a result, the lighting time of yellow, which is a mixed color of red and green, is “1/2” in segment A, the lighting time of yellow, which is a mixed color of red and green, is “3/2”, and segment C is red. The lighting time of yellow, which is a mixed color of green, is "1", and the lighting time of blue is "1" in segment D. In addition to the yellow and blue color display by the mixed color of red and green, the gradation of yellow which is a mixed color Display can be realized.

  Finally, in the example shown in FIG. 13D, only the segment D is turned ON in the first display, the red backlight and the blue backlight are turned on for the lighting time “1” at the same time, and the second display is performed. Segments A and C are turned on, the green backlight is lit for the lighting time “1”, and segments B and C are turned on in the third display, and the green backlight is lit for the lighting time “1/2”. Light. Thus, segment A has a green lighting time of “1”, segment B has a green lighting time of “1/2”, segment C has a green lighting time of “3/2”, and segment D has blue and light green The magenta lighting time that is a mixed color of “1” is “1”, and a magenta that cannot be displayed by a simple RGB mixed color can be displayed by mixing lighting colors having different brightness in a pseudo manner based on the difference in lighting time.

  As described above, according to the present embodiment, two or more color display and gradation display can be performed simultaneously by controlling the lighting of one or more of RGB of the backlight and changing the lighting time thereof. Since it can be realized and various color tone display by color mixture can be realized, various effects can be expected. Note that the liquid crystal display control unit of the present embodiment may be configured to select and switch its function as in the third embodiment described above.

FIG. 2 is a perspective view showing an appearance of a slot machine that is an embodiment of the game machine according to the present invention. It is a control block diagram of a slot machine. It is a flowchart which shows the main process which a main control part performs, and the main process which a sub-control part performs. It is an outline explanatory view of a liquid crystal display control part concerning a 1st embodiment. It is a schematic block diagram of the liquid crystal display control part which concerns on 1st Embodiment. It is a wave form diagram in the liquid crystal display control part of FIG. It is a circuit block diagram of the selection means in the converter of the liquid crystal display control part which concerns on 1st Embodiment. It is a wave form diagram in the selection means shown in FIG. It is a schematic block diagram of the liquid crystal display control part which concerns on 2nd Embodiment. (A) is a circuit block diagram of the selection means in the converter of the liquid crystal display control part which concerns on 2nd Embodiment. (B) is a gradation table referred to by the backlight control means of the liquid crystal display control unit according to the second embodiment. It is a wave form diagram in the converter of FIG. It is a schematic block diagram of the liquid crystal display control part which concerns on 3rd Embodiment. It is explanatory drawing of the display operation by the liquid crystal display control part which concerns on 4th Embodiment. It is a schematic explanatory drawing of the conventional liquid crystal display device. It is a schematic explanatory drawing of the conventional field sequential drive-type liquid crystal display device. It is explanatory drawing of the method of diverting the drive system of the conventional liquid crystal display device comprised from 3 pixels of RGB to 1 pixel to a field sequential drive system.

Explanation of symbols

100 slot machine 600 Liquid crystal display (FS-LCD)
701 VDP
702 CPU
703 CGROM
704 VRAM
705 converter

Claims (7)

A control device for a liquid crystal display device that displays a plurality of element images and displays an image as a composite image of these element images,
An image memory in which image data is stored in units of pixels including data of a plurality of element images;
Image display control means capable of reading the image data from the image memory and outputting the image data in units of pixels;
A selection unit that is interposed between the image display control unit and the liquid crystal display device, and that selects and outputs specific elemental image data from the given pixel unit image data;
Backlight control means for turning on the backlight in accordance with the switching of the selection of the element image data by the selection means,
With
The image display control unit reads out the image data from the image memory and outputs the image data to the selection unit in units of pixels, and repeats the process for each screen by the number of element images. The liquid crystal display is characterized in that selection of element image data is switched and the backlight control means controls the lighting of the backlight for each screen, thereby enabling field sequential driving of the liquid crystal display device. Control device for the device. A control device for a liquid crystal display device that displays a plurality of element images having different emission colors and displays a color image as a composite image of these element images,
An image memory in which color data of a plurality of colors is stored in units of pixels as image data;
Image display control means capable of reading the image data from the image memory and outputting the image data in units of pixels;
A selection unit that is interposed between the image display control unit and the liquid crystal display device, and that selects and outputs specific elemental image data from the given pixel unit image data;
In accordance with the switching of the selection of the element image data by the selection means, a backlight control means for changing to a lighting color backlight corresponding to the color data of the element image
With
The image display control means repeats the process of reading the image data from the image memory and outputting the image data to the selection means in units of pixels, one screen at a time, corresponding to the number of types of element images. The selection of element image data is switched for each screen, and the backlight control means changes the backlight color to the lighting color corresponding to the color data of the element image for each screen, thereby performing color display by field sequential driving. A control device for a liquid crystal display device, characterized by being made possible. A control device for a liquid crystal display device that displays a plurality of element images using a backlight of a single color or a plurality of colors, and displays an image as a composite image of these element images,
An image memory in which gradation data of at least each elemental image is stored in units of pixels as image data;
Image display control means capable of reading the image data from the image memory and outputting the image data in units of pixels;
A gradation control memory that stores the lighting time of the backlight for each type of gradation data of each element image included in the image data,
A selection unit that is interposed between the image display control unit and the liquid crystal display device, and that selects and outputs specific elemental image data from the given pixel unit image data;
Backlight control means for turning on the backlight for the duration of the backlight corresponding to the gradation data of the element image read from the gradation control memory in accordance with the switching of element image data selection by the selection means. When,
With
The image display control unit reads out the image data from the image memory and outputs the image data to the selection unit in units of pixels, and repeats the process for each screen by the number of element images. The selection of element image data is switched, and the backlight control means refers to the gradation control memory and controls the lighting time of the backlight for each screen, whereby the field sequential of the liquid crystal display device is controlled. A control device for a liquid crystal display device, characterized in that driving and gradation control are possible. The image memory stores monochromatic image data including the brightness of each elemental image as gradation data,
The backlight control means refers to the gradation control memory and controls the backlight lighting time for each screen, thereby generating a luminance gradation in an image displayed as a composite image of each element image. The control device for a liquid crystal display device according to claim 3, wherein The image memory stores color image data including the emission color and brightness of each element image as gradation data,
The backlight control means refers to the image memory and the gradation control memory, selects a backlight corresponding to the emission color for each screen, and controls the lighting time of the backlight to 4. The control device for a liquid crystal display device according to claim 3, wherein a mixed color gradation is generated in an image displayed as a composite image of the images.   The color display control function in the control device of the liquid crystal display device according to claim 2 and the gradation control function in the control device of the liquid crystal display device according to any one of claims 3 to 5 are combined. In addition, a control device for a liquid crystal display device, comprising function switching means capable of arbitrarily switching both functions. A gaming machine equipped with the control device according to any one of claims 1 to 6,
The game stand includes
A liquid crystal display device controlled by the control device;
Multiple reels with multiple types of patterns,
A start switch for starting the rotation of the reel;
A stop switch provided for each of the reels, for individually stopping the rotation of the reels;
A lottery means for determining whether or not the internal winning of the winning combination is determined by lottery;
In the case where the winning combination is won internally, and the combination of the pictures displayed by the reels at the time of the stop is a predetermined combination corresponding to the winning combination won in the internal winning combination. A game stand characterized by winning a role.

Images