JP2004166887A - Game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a player from feeling uncomfortable when a three-dimensional image significantly changes. <P>SOLUTION: The game machine has a display device for showing a three-dimensional image to the player by displaying an image for the right eye and an image for the left eye in a display area, and a display control means for controlling the image display of the display device. The display control means comprises a display control device 150 for producing the images for the left eye and for the right eye and a composing/converting device 170 for composing the produced images for the left eye and the right eye to be displayed in a variable display device 8. The composing/converting device 170 comprises an image level operating means for operating the image level of a plurality of images, an image change determining means for determining the size of the change of images before and after based on the image level, and a low-brightness image output means for outputting the image with a predetermined low degree of brightness when the change of the images is determined to be great. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a gaming machine provided with a display device capable of displaying a plurality of types of symbols three-dimensionally.
[0002]
[Prior art]
As disclosed in Japanese Patent Application Laid-Open No. 9-103558 and the like, there is known a conventional gaming machine provided with a variable display device that three-dimensionally displays a symbol when a reach or the like occurs.
[0003]
In this type of variable display device, as disclosed in Japanese Patent Application Laid-Open No. 10-222139, a display control device generates a left-eye image and a right-eye image and sends them to the variable display device. And left-eye image data are combined to display a three-dimensional three-dimensional image.
[0004]
[Patent Document 1]
JP-A-10-222139
[Patent Document 2]
JP-A-9-103558
[0005]
[Problems to be solved by the invention]
However, in the latter conventional example (JP-A-10-222139), the image data for the left eye and the image data for the right eye are transmitted from the display control device to the variable display device. When a symbol is displayed three-dimensionally and a symbol such as a jackpot notification (fanfare, etc.) is also displayed three-dimensionally, when the image changes greatly from the image where the reach is determined to the jackpot notification screen. In addition, the left-eye image and the right-eye image are temporarily different, and it takes time for the eyes to get used to the newly displayed symbols, objects, and the like, which may give the player a sense of discomfort.
[0006]
The present invention has been made in view of the above problems, and has as its object to prevent a player from feeling uncomfortable when a three-dimensional image greatly changes.
[0007]
[Means for Solving the Problems]
A first invention is a gaming machine comprising: a display device for displaying a stereoscopic image to a player by displaying a left-eye image and a right-eye image in a display area; and display control means for controlling image display of the display device. At
The display control means, generating means for respectively generating the image for the left eye and the image for the right eye, and a synthesizing means for synthesizing the generated image for the left eye and the image for the right eye and causing the display device to display, An image level calculator configured to calculate an image level of an image displayed on the display device; and an image level calculator configured to calculate an image change when the image displayed on the display device changes based on the image level. Image change determining means for determining the size; and a low-luminance image to be output to the display device by switching an image displayed on the display device to an image in a preset low-luminance state when the image change is determined to be large. Output means.
[0008]
Further, the second invention includes a display device for displaying a stereoscopic image to a player by displaying a left-eye image and a right-eye image in a display area, and display control means for controlling image display of the display device. In gaming machines,
The display control means, generating means for respectively generating the image for the left eye and the image for the right eye, and a synthesizing means for synthesizing the generated image for the left eye and the image for the right eye and causing the display device to display, An image level calculator configured to calculate an image level of an image displayed on the display device; and an image level calculator configured to calculate an image change when the image displayed on the display device changes based on the image level. Image change determining means for determining the size; and a low-brightness image to be output to the synthesizing means when the image change is determined to be large, by switching an image displayed on the display device to an image in a preset low-brightness state. Generating means.
[0009]
In a third aspect based on the second aspect, the generation means expands the compressed image data to generate image data of a left-eye image and a right-eye image.
[0010]
In a fourth aspect based on any one of the first to third aspects, the image level is obtained by converting all or any of luminance, hue, and saturation of a pixel into a numerical value.
[0011]
In a fifth aspect based on the fourth aspect, the image change determining means determines that the image change is large when the difference between the image levels before and after the image change is equal to or greater than a predetermined value.
[0012]
In a sixth aspect based on the fourth or fifth aspect, the image level calculating means weights the image level according to the position of the display area, and calculates the image level based on the weighting. I do.
[0013]
In a seventh aspect based on the sixth aspect, the image level calculation means sets a large weight for the central portion of the display area and sets a small weight for the peripheral portion.
[0014]
In an eighth aspect based on any one of the first to seventh aspects, the image in the low luminance state is a black or gray image set in advance.
[0015]
【The invention's effect】
Therefore, in the first or second invention, the left-eye image and the right-eye image from the generating unit and the synthesizing unit are displayed independently in the display area of the display device of the gaming machine, so that the identification information and the like are displayed in three dimensions. Is displayed. From the image levels obtained from a plurality of images, when the image change between the previous and next images is large, an image in a low luminance state (for example, black or gray) is inserted. The images can be prevented from being completely different, and the scene can be switched without giving the player an uncomfortable feeling.
[0016]
According to the third aspect of the present invention, the compressed image data is expanded and the image change between the previous and next images is compared. When the image change is large, the image can be set to a low-luminance state. In this case, it is also possible to prevent the images for the left eye and the right eye from being completely different from each other when the image greatly changes, and to switch the scene without giving the player an uncomfortable feeling. Further, since there is no need to make settings related to scene switching on the side of the compressed image data, it is possible to greatly reduce the labor and man-hours required for developing the device.
[0017]
According to the fourth aspect of the present invention, since the image level is all or any of the numerical levels of luminance, hue, and saturation, it is possible to accurately control the switching of the scene for outputting the image in the low luminance state. Become.
[0018]
Further, in the fifth invention, when the difference between the image levels before and after the image change is equal to or more than a predetermined value, it is determined that the image change is large, so that the switching time of the scene for outputting the image in the low luminance state is accurately controlled. It is possible to cope with various display contents by changing the predetermined value.
[0019]
Further, in the sixth or seventh aspect, since the weighting of the image level is different depending on the position of the display area, it is possible to perform appropriate scene switching control in accordance with the location where the player's viewpoint is gathered. . In particular, by increasing the weight at the center, the scene can be switched without giving the player a sense of discomfort.
[0020]
In the eighth invention, the image in the low-luminance state is a black or gray image set in advance, so that the image is momentarily darkened and there is an afterimage of the previous image in the eyes of the player. If the period during which is short, the preceding and following images can be complemented by the afterimage effect of the eyes, and the player can continue to view a three-dimensional image without feeling that the image has disappeared.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0022]
FIG. 1 is a front view showing the entire configuration of a gaming machine (CR machine with a card ball lending unit) showing one embodiment of the present invention, and FIG. 2 is a block diagram of a control system.
[0023]
A front frame 3 of the gaming machine (pachinko gaming machine) 1 is assembled to a main body frame (outer frame) 4 via a hinge 5 so as to be openable and closable, and a game board 6 is provided in a storage frame ( (Not shown).
[0024]
On the surface of the game board 6, a variable display device (display device) 8, a variable winning device 10 having a large winning opening, a general winning opening 11 to 15, a starting opening 16, an ordinary symbol starting gate 27A, 27B, an ordinary symbol display. A game area in which the device 7, the normal variable prize device 9 (auxiliary prize winning means) and the like are provided is formed. A cover glass 18 that covers the front of the game board 6 is attached to the front frame 3.
[0025]
The variable display device 8 displays, for example, three display symbols (identification information) of left, middle, and right in a display area. To these display symbols, for example, numbers from “0” to “9” and alphabet letters “A” to “E” are assigned.
[0026]
When a game ball is awarded to the starting port 16, the variable display device 8 sequentially displays the display symbols composed of the numbers and characters described above. When a winning in the starting opening 16 is made at a predetermined timing (specifically, when a special symbol random number counter value at the time of winning detection is a winning value), a big hit state is reached, and three display symbols are aligned. Stop in the state (big hit symbol). At this time, the special winning opening of the variable winning device 10 is widely opened for a predetermined time (for example, 30 seconds), so that many game balls can be obtained.
[0027]
The winning of the game ball to the starting port 16 is detected by a special symbol starting sensor 51 (see FIG. 2). The passing timing of the game balls (specifically, the value of the special symbol random number counter provided in the game control device 100 (see FIG. 2) at the time of winning detection) is stored as a special symbol winning memory. Is stored in a predetermined storage area (special symbol random number storage area) within a maximum of predetermined consecutive times. The number of the special symbol prize storage is displayed on a special symbol storage state display 17 including a plurality of LEDs provided below the variable display device 8. The game control device 100 performs a variable display game on the variable display device 8 based on the special symbol winning memory.
[0028]
When a game ball is won at the normal symbol starting gates 27A and 27B, the normal symbol display 7 starts to display a variable symbol (for example, a symbol consisting of one number). When a prize to the ordinary symbol starting gates 27A and 27B is made at a predetermined timing (specifically, when the ordinary symbol random number counter value at the time of detecting the prize is a winning value), a winning state related to the ordinary symbol is set, Normally the symbol stops at the hit symbol (hit number). At this time, the normal variable winning device 9 provided in front of the starting port 16 is widely opened for a predetermined time (for example, 0.5 seconds), and the possibility of winning the game ball to the starting port 16 is increased.
[0029]
The passing of the game ball to the ordinary symbol start gates 27A and 27B is detected by the ordinary symbol start sensor 52 (see FIG. 2). The passing timing of the game ball (specifically, the value at the time of passage detection of the normal symbol random number counter provided in the game control device 100) is a predetermined storage in the game control device 100 as a normal symbol winning memory. A predetermined number of times (for example, a maximum of four consecutive times) is stored in an area (normal symbol random number storage area). The stored number of the ordinary symbol prize storage is displayed on the ordinary symbol storage state display 19 including a plurality of LEDs provided on the left and right of the ordinary symbol display 7. The game control device 100 performs a lottery for a normal symbol based on the normal symbol winning memory. Note that the number of stored symbols in the ordinary symbol storage state display 19 is set to an arbitrary value.
[0030]
An upper plate 21 for supplying a ball to the hitting / launching device is provided on an opening / closing panel 20 below the front frame 3, and a lower plate 23 and an operation unit 24 of the hitting / launching device are provided on a fixed panel 22.
[0031]
The front frame 3 above the cover glass 18 is provided with a first notification lamp 31 and a second notification lamp 32 (see FIG. 2) for notifying a state such as an abnormal discharge of a ball by lighting.
[0032]
The operation panel 26 for the card ball lending unit includes a card balance display section (not shown) for displaying the balance of the card, a ball lending switch 28 for commanding a ball lending, a card return switch 30 for commanding a card return, and the like. Is provided.
[0033]
The card ball lending unit 2 incorporates a card reader / writer and a ball lending controller for reading and writing data of a card (such as a prepaid card) inserted into the card insertion unit 25 on the front side. Operation panel 26 is formed on the outer surface of upper plate 21 of gaming machine 1.
[0034]
FIG. 2 is a block diagram showing a control system centered on the game control device 100.
[0035]
The game control device 100 is a main control device that comprehensively controls the game, a CPU that controls the game control, a ROM that stores invariable information for the game control, and a RAM that is used as a work area during the game control. , An input interface 102, an output interface 103, an oscillator 104, and the like.
[0036]
The gaming microcomputer 101 detects signals from various detection devices (special symbol start sensor 51, general winning opening sensors 55A to 55N, count sensor 54, continuation sensor 53, ordinary symbol start sensor 52) via the input interface 102. In response, various processes such as a jackpot lottery are performed. Then, through the output interface 103, various control devices (display control device 150, discharge control device 200, decoration control device 250, sound control device 300), a special winning opening solenoid 36, a normal electric accessory solenoid 90, a normal symbol display A command signal is transmitted to the device 7 or the like to control the game in a comprehensive manner.
[0037]
The discharge control device 200 controls the operation of the payout unit based on the prize ball command signal from the game control device 100 or the ball lending request from the card ball lending unit 2 to discharge the prize ball or the ball lending.
[0038]
The decoration control device 250 controls a decoration light emitting device such as a decoration lamp and an LED based on a decoration command signal from the game control device 100, and also stores a special symbol storage and display (special symbol reservation LED) 18, a normal symbol storage. The display on the display 19 is controlled.
[0039]
The sound control device 300 controls the sound effect output from the speaker. The communication from the game control device 100 to the various dependent control devices (the display control device 150, the emission control device 200, the decoration control device 250, and the sound control device 300) is performed in a unidirectional manner from the game control device 100 to the dependent control device. Only communication is allowed. Thereby, it is possible to prevent an illegal signal from being input from the slave control device side of the game control device 100.
[0040]
The display control device 150 constituting the display control means controls display of an image, and functions as a display control means together with the composition conversion device 170. The display control device 150 includes a CPU 151, a VDC (Video Display Controller) 156, a RAM 153, an interface 155, a ROM 152 storing programs, sequence data, and the like, and image data (design data, background image data, moving image character data, texture data, and the like). And an oscillator 158 for generating a timing signal for generating a synchronizing signal and a strobe signal.
[0041]
The CPU 151 executes a program stored in the ROM 152 and, based on a signal from the game control device 100, image control information for a predetermined variable display game (symbol display information composed of sprite data, polygon data, etc., a background screen). Information, moving image object screen information, etc.) and instruct the VDC 156 to generate an image.
[0042]
The VDC 156 performs, for example, polygon drawing (or normal bitmap drawing) of an image based on the image data stored in the font ROM 157 and the content of the image control information calculated by the CPU 151, and a predetermined texture for each polygon. Is pasted and stored in the RAM 153 as a frame buffer. Then, the VDC 156 transmits the image in the RAM 153 to the LCD side (synthesis conversion device 170) at predetermined timing (vertical synchronization signal V_SYNC, horizontal synchronization signal H_SYNC).
[0043]
The drawing processing performed by the VDC 156 performs point drawing, line drawing, triangle drawing, and polygon drawing, and further performs texture mapping, alpha blending, shading processing (such as glow shading), and hidden surface removal (such as Z buffer processing) to perform γ correction. The image signal is output to the synthesis conversion device 170 via the circuit 159.
[0044]
Note that the VDC 156 may temporarily store the drawn image data in the RAM 153 as a frame buffer, and then output the image data to the synthesizing / conversion device 170 in accordance with a synchronization signal (such as V_SYNC).
[0045]
Here, as the frame buffer, a plurality of frame buffers are respectively set in a predetermined storage area or the like of the RAM 153, and the VDC 156 can output the image by superimposing (overlaying) it on an arbitrary image.
[0046]
An oscillator 158 that supplies a clock signal is connected to the VDC 156. The clock signal generated by the oscillator 158 defines the operation cycle of the VDC 156. The VDC 156 divides the frequency of the clock signal to generate a vertical synchronizing signal (V_SYNC) and a horizontal synchronizing signal (H_SYNC), and output them to the synthesizing converter 170. At the same time, the VDC 156 outputs the vertical synchronizing signal (V_SYNC) and the horizontal synchronizing signal (H_SYNC) to the fluctuation display device 8 via the synthesizing converter 170.
[0047]
The RGB signals output from the VDC 156 are input to the gamma correction circuit 159. The gamma correction circuit 159 corrects the nonlinear characteristic of the illuminance with respect to the signal voltage of the fluctuation display device 8, adjusts the display illuminance of the fluctuation display device 8, and outputs an RGB signal (image data) output to the fluctuation display device 8. ).
[0048]
The CPU 151 of the display control device 150 converts the image data (RGB) to be output to the synthesizing converter 170 into a left-eye image or a right-eye image based on a clock signal (for example, a vertical synchronization signal V_SYNC) of the oscillator 158. An L / R signal (image identification signal) for identifying which of the above is output.
[0049]
Further, the CPU 151 generates a duty control signal DTY_CTR based on the clock signal of the oscillator 158 (or the vertical synchronization signal V_SYNC) to output the duty control signal DTY_CTR to the fluctuation display device 8 in order to control the light emission amount (luminance) of the fluctuation display device 8. .
[0050]
As shown in FIG. 3, the synthesis conversion device 170 includes a control unit 171 including a microprocessor, a RAM 172, and a ROM 173. The RAM 172 includes a right-eye frame buffer 175, a left-eye frame buffer 174, and a stereoscopic frame. A buffer 177 and a comparison buffer 176 are set.
[0051]
The control unit 171 writes the right-eye image sent from the VDC 156 to the right-eye frame buffer 175 and writes the left-eye image to the left-eye frame buffer 174 based on the L / R signal from the CPU 151.
[0052]
Next, the control unit 171 calculates comparison data for comparing changes in the preceding and following images from the left-eye image and the right-eye image stored in each frame, and stores the comparison data in the comparison buffer 176, as described later. .
[0053]
Then, when a predetermined number of images are accumulated in the comparison buffer 176, the degree of change between the previous and next images is compared. If the change between the previous and next images is small, the image data stored in the left and right frame buffers 174, 175 Is written into the stereoscopic frame buffer 177, the left-eye image and the right-eye image are combined to generate a stereoscopic image (three-dimensional image), and the stereoscopic image data is converted into an RGB signal or the like as a variable display device 8. Output to
[0054]
On the other hand, if the change between the preceding and following images is large, the image data stored in the left and right frame buffers 174 and 175 to be output next is discarded, while the predetermined low luminance state (such as black or gray) stored in the ROM 173 is discarded. ) Is transferred to the frame buffer for stereoscopic vision 177 to prevent the left and right images from temporarily differing greatly when the change in the image is large.
[0055]
Note that the L / R signal indicates left-eye image data when Hi level = 1 and indicates right-eye image data when Lo level = 0.
[0056]
The generation of the stereoscopic image by synthesizing the left-eye image and the right-eye image is performed, as shown in FIG. 4, at every interval of the half-wave plate 821 provided on the fine phase difference plate 802. And the image for the right eye. More specifically, since the half-wave plates 821 of the fine phase difference plate 802 of the variable display device 8 of the present embodiment are arranged at intervals of the display unit of the liquid crystal display panel 804, the display of the liquid crystal display panel 804 The stereoscopic image is displayed such that the left-eye image and the right-eye image are alternately displayed for each unit horizontal line (scanning line).
[0057]
In a normal display state, the image data for the left eye transmitted from the VDC 156 during the output of the L signal is written into the frame buffer 174 for the left eye, and the image data for the right eye transmitted from the VDC 156 during the output of the R signal is output to the frame buffer for the right eye. Write to 175. Then, the image data for the left eye written in the frame buffer for the left eye 174 and the image data for the right eye written in the frame buffer for the right eye 175 are read out for each scanning line, and written to the frame buffer for stereoscopic vision 177.
[0058]
A liquid crystal driver (LCD DRV) 181 and a backlight driver (BL DRV) 182 are provided in the variable display device 8. The liquid crystal driver (LCD DRV) 181 sequentially applies a voltage to the electrodes of the liquid crystal display panel based on the V_SYNC signal, the H_SYNC signal, and the RGB signal (image data) sent from the synthesizing conversion device 170, and Displays a composite image for stereoscopic viewing.
[0059]
The backlight driver 182 changes the duty ratio of the voltage applied to the light emitting element (backlight) 810 based on the DTY_CTR signal output from the CPU 151, and changes the brightness of the liquid crystal display panel 804.
[0060]
FIG. 4 is an explanatory diagram illustrating the configuration of the variable display device 8. The light source 801 includes a light emitting element 810, a polarizing filter 811, and a Fresnel lens 812. The light emitting element 810 is configured such that point light sources such as white light emitting diodes (LEDs) are used side by side, or a line light source such as a cold cathode tube is horizontally arranged. The polarization filter 811 is set so that the polarization of light transmitted through the left region 811b and the polarization of light transmitted through the right region 811a are different (for example, the polarization of light transmitted through the left region 811b and the polarization of light transmitted through the right region 811a are shifted by 90 degrees). The Fresnel lens 812 has a lens surface having concentric unevenness on one side surface.
[0061]
As for the light emitted from the light emitting element 810, only light having a certain polarization is transmitted by the polarization filter 811. That is, of the light emitted from the light emitting element 810, the light that has passed through the left region 811b of the polarizing filter 811 and the light that has passed through the right region 811a are radiated to the Fresnel lens 812 as light having different polarizations. As described later, light passing through the left region 811b of the polarizing filter 811 reaches the right eye of the observer, and light passing through the right region 811a reaches the left eye of the observer.
[0062]
Note that, without using a light-emitting element and a polarizing filter, it is sufficient to irradiate light of different polarizations from different positions.For example, two light-emitting elements that generate light of different polarizations are provided, and different polarizations are provided. Light may be applied to the Fresnel lens 812 from different positions.
[0063]
The light transmitted through the polarizing filter 811 is applied to the Fresnel lens 812. The Fresnel lens 812 is a convex lens, and the Fresnel lens 812 refracts the optical path of the light radiated so as to diffuse from the light emitting element 810 substantially in parallel, transmits through the fine phase difference plate 802, and irradiates the liquid crystal display panel 804. .
[0064]
At this time, light transmitted through the fine retardation plate 802 is emitted so as not to spread in the vertical direction, and is emitted to the liquid crystal panel 804. That is, light transmitted through a specific region of the fine phase difference plate 802 is transmitted through a specific display unit of the liquid crystal display panel 804.
[0065]
Further, of the light applied to the liquid crystal display panel 804, the light passing through the right side region 811 a and the light passing through the left side region 811 b of the polarizing filter 811 enter the Fresnel lens 812 at different angles. The light is refracted and radiated from the liquid crystal display panel 804 through different paths.
[0066]
In the liquid crystal display panel 804, a liquid crystal that is oriented by being twisted at a predetermined angle (for example, 90 degrees) is disposed between two transparent plates (for example, a glass plate). Make up. The light incident on the liquid crystal display panel is emitted with the polarization of the incident light shifted by 90 degrees when no voltage is applied to the liquid crystal. On the other hand, when a voltage is applied to the liquid crystal, the liquid crystal is untwisted, so that the incident light is emitted as it is.
[0067]
A fine retardation plate 802 and a polarizing plate 803 (second polarizing plate) are arranged on the light source 1 side of the liquid crystal display panel 804, and a polarizing plate 805 (first polarizing plate) is arranged on the viewer side. ing.
[0068]
In the fine retardation plate 802, regions for changing the phase of transmitted light are repeatedly arranged at fine intervals. Specifically, a region 802a where a half-width plate 821 having a fine width is provided on a light-transmitting base material and a region 802a at a fine interval equal to the width of the half-wave plate 821 are formed. A region 802b where the wavelength plate 821 is not provided is repeatedly provided at a fine interval. That is, a region 802a that changes the phase of light transmitted by the provided half-wave plate and a region 802b that does not change the phase of light transmitted because the half-wave plate 821 is not provided are minute intervals. Is provided repeatedly. The half-wave plate 821 functions as a phase difference plate that changes the phase of transmitted light.
[0069]
The half-wave plate 821 is arranged such that its optical axis is inclined by 45 degrees with respect to the polarization axis of the light transmitted through the right region 811a of the polarizing filter 811 and rotates the polarization axis of the light transmitted through the right region 811a by 90 degrees. Out. That is, the polarization of the light transmitted through the right region 811a is rotated by 90 degrees to be equal to the polarization of the light transmitted through the left region 811b. That is, the region 802b where the half-wave plate 821 is not provided transmits the light having the same polarization as the polarizing plate 803, which has passed through the left region 811b. In the area 2a provided with the half-wave plate 821, the light passing through the right area 11a and having the polarization axis orthogonal to the polarization plate 803 is rotated and emitted so as to be equal to the polarization axis of the polarization plate 803. .
[0070]
The repetition of the polarization characteristics of the fine retardation plate 802 is performed by setting the polarization of light transmitted through each display unit (that is, each horizontal line in the horizontal direction of the display unit) at substantially the same pitch as the display unit of the liquid crystal display panel 804. To be different. Accordingly, the polarization characteristics of the fine phase difference plate 802 corresponding to each horizontal line (scanning line) of the display unit of the liquid crystal display panel 804 are different, and the direction of light emitted for each horizontal line is different.
[0071]
Alternatively, the repetition of the polarization characteristic of the fine retardation plate 802 is performed by setting the polarization characteristic of the fine retardation plate 802 to a plurality of display units (that is, a plurality of display units) by setting the pitch of the liquid crystal display panel 804 to an integral multiple of the display unit pitch. (For each horizontal line of the unit), the polarization of the transmitted light may be set to be different for each of the plurality of display units. In this case, the polarization specification of the fine phase difference plate is different for each of a plurality of horizontal lines (scanning lines) of the display unit of the liquid crystal display panel 804, and the direction of light emitted for each of the plurality of horizontal lines is different. Become.
[0072]
As described above, it is necessary to irradiate the display element (horizontal line) of the liquid crystal display panel 804 with different light every time the polarization characteristic of the fine phase difference plate 802 is repeated. The light applied to the light 804 needs to suppress diffusion in the vertical direction.
[0073]
That is, the region 802a of the fine retardation plate 802 that changes the phase of light transmits the light that has passed through the right region 811a of the polarizing filter 811 into light having a gradient equal to the polarization of the light that has passed through the left region 811b. . The region 802b of the fine phase difference plate 802 in which the phase of light does not change transmits the light transmitted through the left region 811b of the polarizing filter 811 as it is. Then, the light emitted from the fine retardation plate 802 has the same polarization as the light transmitted through the left region 811b, and enters the polarizing plate 803 provided on the light source side of the liquid crystal display panel 804.
[0074]
The polarizing plate 803 functions as a second polarizing plate, and has a polarization characteristic of transmitting light having the same polarization as light transmitted through the left region 811b of the polarizing filter 811. That is, the light transmitted through the left region 811b of the polarizing filter 811 transmits through the second polarizing plate 803, and the light transmitted through the right region 811a of the polarizing filter 811 is rotated by 90 degrees in the polarization axis so that the second polarizing plate 803 is rotated. To Penetrate. Further, the polarizing plate 805 functions as a first polarizing plate, and has a polarizing property of transmitting light having a polarization different from the polarizing plate 803 by 90 degrees.
[0075]
Such a fine phase difference plate 802, a polarizing plate 803, and a polarizing plate 805 are attached to a liquid crystal display panel 804, and an image display device is obtained by combining the fine phase difference plate 802, the polarizing plate 803, the liquid crystal display panel 804, and the polarizing plate 805. Is composed. At this time, when a voltage is applied to the liquid crystal, light transmitted through the polarizing plate 803 transmits through the polarizing plate 805. On the other hand, when no voltage is applied to the liquid crystal, the light transmitted through the polarizing plate 803 does not transmit through the polarizing plate 805 because the polarized light is twisted by 90 degrees and emitted from the liquid crystal display panel 804.
[0076]
The diffuser 806 is attached to the front side (viewer side) of the first polarizing plate 805, and functions as a diffusion unit that vertically diffuses light transmitted through the liquid crystal display panel. Specifically, the light transmitted through the liquid crystal display panel is vertically diffused using a lenticular lens in which vertical and concave portions are repeatedly provided.
[0077]
Note that a lenticular lens may be provided with a mat-shaped diffusion surface having a stronger diffusion fingering property in the vertical direction instead of the lenticular lens. By suppressing diffusion in the vertical direction until transmission through the liquid crystal panel 804, the narrow viewing angle can be improved.
[0078]
FIG. 5 is a plan view showing an optical system of the variable display device 8.
[0079]
Light emitted from the light emitting element 810 is transmitted through the polarization filter 811 and spreads radially. Of the light emitted from the light source, the light that has passed through the left region 811b of the polarizing filter 811 reaches the Fresnel lens 812, the traveling direction of the light is changed by the Fresnel lens 812, and the fine phase difference plate 802, the polarizing plate 803 , The liquid crystal display panel 804 and the polarizing plate 805, which are transmitted substantially vertically (slightly from left to right) to reach the right eye.
[0080]
On the other hand, of the light emitted from the light source, the light transmitted through the right region 811 a of the polarizing filter 811 reaches the Fresnel lens 812, the traveling direction of the light is changed by the Fresnel lens 812, and the fine phase difference plate 802 is The light reaches the plate 803, the liquid crystal display panel 804, and the polarizing plate 805, and transmits these substantially vertically (slightly from the right to the left) to reach the right eye.
[0081]
In this manner, the light emitted from the light emitting element 810 and transmitted through the polarizing filter 811 is applied to the liquid crystal display panel 804 almost vertically by the Fresnel lens 812 as an optical unit, and the light is emitted by the light emitting element 810, the polarizing filter 811 and the Fresnel lens 812. A light source 1 for irradiating the liquid crystal display panel 804 with light having different polarization planes substantially vertically and through different paths, and emitting light transmitted through the liquid crystal display panel 804 through different paths to reach the left eye or the right eye. Let it. That is, the scanning line pitch of the liquid crystal display panel 804 is made equal to the repetition pitch of the polarization characteristics of the fine phase difference plate 802, and light arriving from a different direction for each scanning line pitch of the liquid crystal display panel 804 is irradiated and different. Emit light in the direction.
[0082]
FIG. 6 is a perspective view showing an example of displaying a two-dimensional symbol 850 from the display surface 8A of the variable display device 8 in the depth direction (Z-axis direction in the figure) on the player side, and from the display surface 8A to the player side. In the case where a virtual image is displayed such that the symbol 850 jumps out at the position of Z1 in the directed figure, the symbol 850 is substantially at the center of the display surface 8A.
[0083]
Here, the symbol 850 shows a case where the symbol 850 is composed of a letter “C”, in which the X axis is in the horizontal direction (horizontal scanning direction) of the display surface 8A, the Y axis is in the vertical direction (vertical scanning direction), The Z axis indicates the depth direction. The symbol 850 is two-dimensional sprite data stored in the font ROM 157, and its relative coordinates (horizontal coordinates and vertical coordinates) are defined in advance. It is converted into coordinates (XYZ coordinates).
[0084]
When the symbol 850 is displayed as a three-dimensional image in this way, a right-eye image 850R to be observed by the right eye and a left-eye image 850L to be observed by the left eye are actually displayed on the display surface 8A. These images 850R and 850L are The three-dimensional image 850 observed by the player is displayed with a shift of a predetermined amount dx from the horizontal position.
[0085]
That is, the left-eye image 850L is displayed at a position shifted by dx to the left in the figure from the horizontal position of the three-dimensional image 850 in FIG. 6, and the right-eye image 850R is viewed from the horizontal position of the three-dimensional image 850 in FIG. The positions of the left and right images 850L and R 850 displayed at the position shifted by −dx to the middle left and actually displayed on the display surface 8A are shifted according to the position (projection amount) in the depth direction of the three-dimensional image 850. It is displayed shifted by the amount 2dx.
[0086]
Accordingly, in FIG. 6, it is possible to control the position of the three-dimensional image 850 in the Z-axis direction by changing the amount of displacement (parallax between the left and right eyes) 2dx in the X-axis direction between the left-eye image 850L and the right-eye image 850R. it can. For example, in order to move the three-dimensional image 850 displayed at the position indicated by the solid line in the drawing to the display surface 8A side, it is only necessary to reduce the shift amount (coordinate parameter) 2dx, and conversely to move to the player side. What is necessary is just to increase the deviation amount 2dx. Also, in order to cause the three-dimensional image 850 to fly out from the display surface 8A toward the player, a positive shift amount (right side in the figure) + dx is given to the left-eye image 850L, and a negative shift amount (right figure) is added to the right-eye image 850R. Although -dx is given, in order to display the three-dimensional image 850 on the opposite side of the display surface 8A (the back side of the liquid crystal display panel 804), a negative shift amount (left side in the figure) is displayed on the left-eye image 850L. −dx, and a positive shift amount (right side in the figure) + dx may be given to the right-eye image 850R, and the three-dimensional pattern (virtual image) 850 observed by the player is the left-eye image 850L and the right-eye image 850R. Is given by giving a horizontal shift amount 2dx to the.
[0087]
In FIG. 6, the left-eye image 850L and the right-eye image 850R are illustrated to be overlapped for the sake of simplicity, but actually, as described later, the horizontal position of the liquid crystal display panel 804 is determined in the vertical direction. The line for displaying the image 850L for the left eye and the line for displaying the image 850R for the right eye are set in advance according to, and the image 850L for the left eye and the image 850R for the right eye are displayed alternately and overlap on the same horizontal line. There is no.
[0088]
Next, FIG. 7 illustrates a state of generation and synthesis of the left and right images performed by the display control device 150 and the synthesis conversion device 170.
[0089]
First, FIG. 7A shows the bitmap data of the symbol 850 in FIG. 6 stored in the font ROM 157 of the CPU 151, in which C1 to Cn indicate columns corresponding to X-axis coordinates (horizontal position). In the figure, D1 to Dn indicate row addresses corresponding to the Y-axis coordinates (vertical position).
[0090]
Black pixels such as coordinates (C4, D1) in the figure indicate that the pixels on the liquid crystal panel 804 are brightly lit and in a high luminance state, and white pixels such as coordinates (C3, D1) are , The pixels on the liquid crystal panel 804 are in a low luminance state (black or gray, for example).
[0091]
Further, the bitmap data is composed of three colors of red, green and blue, and is actually composed of three buffers (storage areas). .
[0092]
Now, as shown in FIG. 7 (A), the vertical line portion 850A of the "C" -shaped pattern 850, which is one of the identification information, has a width of one dot, and the pattern 850 which is observed as a virtual image is projected. If the parallax according to the amount (position in the Z-axis direction) is ± 1 dot, and if the column address is C4 as the horizontal reference position, the right-eye image 850R has the pattern 850 as shown in FIG. 7A. The left-eye image 850L is obtained by shifting the symbol 850 from the column address = C4 by +1 dot (right in FIG. 7C) as shown in FIG. 7C. ) Is shifted horizontally.
[0093]
Next, when the arrangement interval of the half-wave plate 821 of the fine phase difference plate 802 is set at every other dot when converted into coordinates in the vertical direction, the left-eye image 850L and the right-eye image 850R are in the vertical direction. The display control device 150 sets the odd-numbered row addresses D, D3,... As the storage area for the right-eye image data, and uses the even-numbered row addresses D2, D4,. Set as an area. These storage areas are secured in the RAM 153 or the like of the display control device 150.
[0094]
Therefore, as shown in FIG. 7B, the right-eye image 850R shifts the original design 850 by -1 dot in the horizontal direction, sets the vertical line portion 850A to the column address = C3, and sets the odd-numbered rows. The image data is generated for every other row address.
[0095]
Similarly, in the left-eye image 850L, as shown in FIG. 7C, the original pattern 850 is horizontally shifted by +1 dot to set the vertical line portion 850A to the column address = C5 and to set the even-numbered rows. An image data is generated at every other row address.
[0096]
The display control device 150 transmits the generated left and right images alternately according to the above-described L / R signals. The transmission of the image data is performed in synchronization with the vertical synchronization signal V_SYNC.
[0097]
On the other hand, upon receiving the vertical synchronization signal V_SYNC, the control unit 171 of the synthesizing / conversion device 170 selects one of the left-eye frame buffer 174 and the right-eye frame buffer 175 shown in FIG. 3 based on the L / R signal at that time. On the other hand, the received image data is taken in.
[0098]
Then, the image data written in the frame buffers 175 and 174 are respectively calculated as comparison data and stored in the comparison buffer 176. When a predetermined number of comparison data is accumulated, the image change before and after is compared, If the image change is small, the image data of the left and right frame buffers 174 and 175 are written as they are to the stereoscopic frame buffer 177 serving as the output buffer of the synthesizing / conversion device 170, and have the same storage as shown in FIG. The signals are synthesized on the area and output to the liquid crystal panel 804 of the variable display device 8 at predetermined timings (vertical synchronization signals V_SYNC). On the other hand, if the image change is large, the image data in the left and right frame buffers 174 and 175 is discarded, and a screen in a preset low-luminance state is output to the stereoscopic frame buffer 177.
[0099]
Note that output to the liquid crystal panel 804 is performed in an interlaced or non-interlaced manner.
[0100]
Next, FIG. 8 is a timing chart showing signal transmission / reception timings between the display control device 150 and the combination conversion device 170, data transfer timing in the combination conversion device 170, and interlaced display from the combination conversion device 170 to the variable display device 8. 4 shows a timing chart when outputting image data. FIG. 9 is a diagram showing the contents of the comparison buffer corresponding to the vertical synchronization signal V_SYNC.
[0101]
First, the vertical synchronization signal V_SYNC is turned on at predetermined intervals (for example, 16.7 msec = 1/60 second), and at the fall of the vertical synchronization signal V_SYNC, the display control device 150 sends the RGB While transmitting the image data (DATA in the figure), the CPU 151 transmits the L / R signal to the synthesizing converter 170 in synchronization with the fall of the vertical synchronization signal V_SYNC. The L / R signal is used to determine whether the image data to be transmitted is for the left eye or for the right eye. For example, when the signal is ON, it indicates the left eye (L), and when it is OFF, it is the right eye (R). Is shown.
[0102]
For example, when the vertical synchronizing signal V1 in the figure becomes OFF (Lo), the L / R signal becomes OFF (LOW level), indicating that the image data R1 to be transmitted is for the right eye, and the next vertical synchronizing signal V2 becomes When the signal is turned OFF, the L / R signal is turned ON (HIGH level), indicating that the image data L1 to be transmitted is for the left eye, and the image data for the left eye and the image data for the right eye are alternately output for each vertical synchronization signal V_SYNC. Send out.
[0103]
When the vertical synchronization signal V_SYNC is turned off, the control unit 171 of the synthesis conversion device 170 reads the L / R signal and determines whether the received image data is for the left eye or the right eye.
[0104]
For example, when the vertical synchronization signal V0 in the figure is turned OFF, the L / R signal is OFF, so that it is determined that the received image data R1 is for the right eye, and the received image data R1 is stored in the right-eye frame buffer 175. Remember.
[0105]
When the next vertical synchronizing signal V2 is turned off, the L / R signal is turned on. Therefore, it is determined that the received image data L1 is for the left eye, and the received image data L1 is stored in the left eye frame buffer 174. .
[0106]
When the writing of the right-eye image data R1 read by the vertical synchronization signal V0 into the right-eye frame buffer 175 is completed, the comparison data R1d for comparing the image change is calculated, and the comparison buffer 176 (FIG. 8). Is stored in CMP / buff). As described later, the calculation of the comparison data is obtained by converting RGB image data into YCbCr (Y = brightness, Cb = bluish, RY component, Cr = reddish, BY component) color data. is there.
[0107]
When the writing of the left-eye image data L1 read by the next vertical synchronizing signal V1 into the left-eye frame buffer 174 is completed, comparison data L1d for comparing image changes is calculated, and the comparison buffer 176 is calculated. Is stored in
[0108]
The comparison buffer 176 can store, for example, two left and right comparison data corresponding to two screens (frames) as shown in FIG. That is, since one frame (screen) is constituted by the right-eye image data R1 and the left-eye image data L1, two frames of comparison data can be stored, and the comparison buffer 176R for storing the right-eye comparison data. , And a comparison buffer 176L for storing left-eye comparison data. Each of the comparison buffers 176R and 176L is composed of a FIFO buffer or the like.
[0109]
It is determined whether to output the data of the frame buffer or the data of the ROM 173 (the image data in the low luminance state) according to the comparison result of the comparison data (whether or not the change in the image before and after is large). The left and right frame buffers 174 and 175 are configured as FIFO buffers each capable of storing two image data, as shown in FIG.
[0110]
The comparison data R1d and R2d corresponding to the image data R1 and R2 for the right eye read by the vertical synchronization signals V0 and V2 in FIG. The sizes are compared (see FIG. 9).
[0111]
After the output of the image data or the output of the data in the ROM 173 is determined according to the comparison result, the comparison data R1d for which the comparison has been completed is deleted, and the comparison data R3d of the new frame is stored as the next vertical synchronization signal V4. You. The comparison data R2d of the next frame is shifted to the position of the deleted comparison data R1d, and then the comparison data R3d of the new frame is stored.
[0112]
In the vertical synchronization signal V3, the left-eye image data L2 is stored in the left-eye frame buffer 174, and the comparison data is calculated and stored in the left-eye comparison buffer 176L.
[0113]
In the next vertical synchronizing signal V4, the magnitudes of image changes before and after are compared for comparison data L1d and L2d corresponding to the left-eye image data L1 and L2 read by the vertical synchronizing signals V1 and V3.
[0114]
After determining the output of the image data or the output of the data of the ROM 173 according to the comparison result, the comparison data L1d for which the comparison has been completed is deleted, the next comparison data L2d is shifted, and the image data is stored in the right-eye comparison buffer 176R. The right-eye comparison data R3d corresponding to the data R3 is stored.
[0115]
Thereafter, the right-eye comparison buffer 176R reads new comparison data when the vertical synchronization signal V is even, compares two comparison data when the vertical synchronization signal V is odd, deletes old comparison data, The new comparison data is shifted rightward in the figure.
[0116]
The left-eye comparison buffer 176L reads new comparison data when the vertical synchronization signal V is an odd number, compares two comparison data when the vertical synchronization signal V is an even number, deletes old comparison data, and The new comparison data is shifted rightward in the figure.
[0117]
Next, the transfer of data between the left and right frame buffers 174 and 175 will be described with reference to FIG.
[0118]
In the vertical synchronization signals V0 and V1, the right-eye image data R1 and the left-eye image data L1 are stored in the right-eye frame buffer 175 and the left-eye frame buffer 174, respectively, according to the L / R signal.
[0119]
With the vertical synchronization signal V2, new image data R2 is stored in the right-eye frame buffer 175.
[0120]
In the next vertical synchronizing signal V3, as shown in FIG. 8, first, new image data L2 is stored in the left-eye frame buffer 174, and then the comparison result of the right-eye comparison buffer 176R shown in FIG. , The right-eye image data R1 is transferred to the stereoscopic frame buffer 177 as an output buffer (OUT / buff in FIG. 8), and only odd lines of the stereoscopic frame buffer 177 are overwritten by the right-eye image data R1. You. The output image data R1 is deleted, and the newer image data R2 is shifted to this position to the right (storage position on the output side) in the figure.
[0121]
When the comparison result of the vertical synchronizing signal V3 in FIG. 9 is determined as “the image change is large” as described later, the right-eye image data R1 is not transferred to the stereoscopic frame buffer 177. The image data in the low-luminance state stored in the ROM 173 is transferred to the stereoscopic frame buffer 177, and only the odd-numbered lines are overwritten by the right-eye image data R1.
[0122]
At the time when the output from the stereoscopic frame buffer 177 to the variable display device 8 is completed (T in FIG. 8), the control unit 171 of the synthesizing conversion device 170 turns to V blank. To the stereoscopic frame buffer 177 to synthesize an image.
[0123]
That is, in each cycle of the vertical synchronizing signal V_SYNC, from the time (T) when the output from the stereoscopic frame buffer 177 to the variable display device 8 is completed (T), the stereoscopic video signal from the left and right frame buffers on which the L / R signal is inverted is output. The transfer to the viewing frame buffer 177 is performed. For example, in the vertical synchronization signal V3 in the figure, since the L / R signal is ON (L), the image data R1 of the right-eye frame buffer 175 is converted from the time T to the stereoscopic frame buffer 177 from the time T for the inverted right-eye. And the contents of the stereoscopic frame buffer 177 are drawn by the variable display device 8 from the next vertical synchronization signal V4 at which the L / R signal becomes OFF (R).
[0124]
Then, in the vertical synchronization signal V4, based on the comparison result of the left-eye comparison buffer 176L, the left-eye image data L1 is transferred from the left-eye frame buffer 174 to the stereoscopic frame buffer 177, and only the even-numbered lines are left-eye image data. The new image data R3 is stored in the right-eye frame buffer 175 while being overwritten by the data L1. In the vertical synchronizing signal V4, as shown in FIG. 8, the right and left synthesized images (R1 + L0) are transmitted from the stereoscopic frame buffer 177 to the variable display device 8. The left-eye image L0 is before the vertical synchronizing signal V0. Is the image data received. Similarly, the image data L1 whose transfer has been completed is deleted, and the newer image data L2 is shifted to the right (storage position on the output side) in the figure.
[0125]
Thereafter, when the vertical synchronization signal V is an odd number, transfer from the right-eye frame buffer 175 to the stereoscopic frame buffer 177 is performed based on the comparison result, and new image data is stored in the left-eye frame buffer 174. You. When the vertical synchronization signal V is an even number, transfer from the left-eye frame buffer 174 to the stereoscopic frame buffer 177 is performed, and new image data is stored in the right-eye frame buffer 175.
[0126]
In this way, it is determined whether the image data to be transmitted is for the left eye or the right eye by the L / R signal that changes alternately for each vertical synchronization signal V_SYNC. The data is calculated to determine whether the image change is large based on a plurality of comparison data, and then the image data in the left and right frame buffers or the ROM 173 is transferred to the stereoscopic frame buffer 177 to combine the left and right image data. Then, output to the fluctuation display device 8 is performed.
[0127]
Next, FIG. 11 shows a case in which the symbol 850 is fluctuated and displayed by vertical scrolling toward the lower side of the display surface as shown in FIG. 12, and at the timing of FIG. The relationship between the right-eye image data, the left-eye image data, and the vertical synchronization signal V_SYNC at the storage positions on the output side of the frame buffers 174 and 175 is shown.
[0128]
The image data is transmitted and received at the timing shown in FIG. 8, and the right-eye image data is R1 to R4, the left-eye image data is L1 to L4, and the vertical synchronization signal is V3 to V9. Are the same as those in FIG.
[0129]
The display control device 150 outputs the right-eye image data R1 with the vertical synchronizing signal V3 (see FIG. 10) (actually also outputs the previous left-eye image together), and the next vertical synchronizing signal V4 outputs the left-eye image data R1. The image data L1 of the frame buffer for use 174 is output, and new image data R2 is shifted to a storage position on the output side of the frame buffer for right eye 175.
[0130]
With the vertical synchronizing signal V5, the image data R2 of the right-eye frame buffer 175 is output (actually, the previous right-eye image is also output together), while a new storage position on the output side of the left-eye frame buffer 174 is stored. Image data L2 is shifted.
[0131]
Thereafter, the left and right image data are output alternately for each vertical synchronization signal, and the left and right frame buffers are updated every other vertical synchronization signal.
[0132]
Therefore, the contents on the output side of the left and right frame buffers have the same scroll position with odd vertical synchronizing signals V3... In the figure, and only two lines with even vertical synchronizing signals V4. It will be different (corresponding to one frame). Note that the player continuously observes the scroll of the symbol 850, and furthermore, since there is no change in parallax, even if the scroll positions of the left and right images differ by two lines with an even number of vertical synchronization signals, there is no discomfort. A three-dimensional image can be observed.
[0133]
Here, as shown in FIG. 11, after the variable display is performed, when the big hit is determined, the screen is greatly changed from the variable display screen to the big hit screen or the like.
[0134]
FIG. 13 shows an example of a symbol used on the screen of the jackpot occurrence, for example, a state in which a message such as "Hit" is output, and the character "H" is displayed three-dimensionally. The generation and synthesis of the left and right images are performed in the same manner as in FIG.
[0135]
That is, FIG. 13A shows bitmap data of the symbol 860 stored in the font ROM 157 of the CPU 151, and C1 to Cn in the figure show column addresses corresponding to X-axis coordinates (horizontal position). In the drawing, D1 to Dn indicate row addresses corresponding to the Y-axis coordinates (vertical position).
[0136]
Black pixels such as coordinates (C3, D1) in the figure indicate that the pixels on the liquid crystal panel 804 are brightly lit and are in a high luminance state, and white pixels such as coordinates (C2, D1) are , The pixels on the liquid crystal panel 804 are in a low luminance state (black, gray, etc.). The bitmap data is composed of three colors of red, green, and blue. It is composed of a buffer (storage area), but here, for simplicity of explanation, the explanation will be made with monochrome pixels.
[0137]
Now, as shown in FIG. 13A, the parallax (the amount of displacement in the horizontal direction) according to the amount of projection (the position in the Z-axis direction) of the symbol 860 in which the symbol 860 of “H” is observed as a virtual image is ± 2 dots. In this case, the right-eye symbol 860R is a symbol in which the symbol 860 of FIG. 13A is entirely shifted in the horizontal direction by −2 dots (left side in the figure) as shown in FIG. As shown in FIG. 13C, the symbol 860 is shifted in the horizontal direction by +2 dots (right side in the figure) as a whole.
[0138]
Next, when the arrangement interval of the half-wave plate 821 of the fine phase difference plate 802 is set at every other dot when converted into coordinates in the vertical direction, the left-eye symbol 860L and the right-eye symbol 860R are in the vertical direction. The display control device 150 stores the odd-numbered row addresses D, D3,... As the right-eye image data storage area, and stores the even-numbered row addresses D2, D4,. Set as an area. These storage areas are secured in the RAM 153 or the like of the display control device 150.
[0139]
Therefore, the right-eye symbol 860R and the left-eye symbol 860L are alternately generated as image data for every other row address.
[0140]
The display control device 150 transmits the generated left and right image data alternately according to the above-described L / R signal. The transmission of the image data is performed in synchronization with the vertical synchronization signal V_SYNC.
[0141]
On the other hand, upon receiving the vertical synchronization signal V_SYNC, the control unit 171 of the synthesizing / conversion device 170 selects one of the left-eye frame buffer 174 and the right-eye frame buffer 175 shown in FIG. 3 based on the L / R signal at that time. On the other hand, the received image data is taken in.
[0142]
Then, the image data written to these frame buffers 175 and 174 is written to a stereoscopic frame buffer 177 serving as an output buffer of the synthesizing conversion device 170, and as shown in FIG. And output to the liquid crystal panel 804 of the variable display device 8 at a predetermined timing (vertical synchronization signal V_SYNC).
[0143]
Here, switching of screens according to the conventional example will be described.
[0144]
FIG. 14 shows a case where the symbol 850 for change display of FIG. 7 and the symbol 860 of the jackpot occurrence notification shown in FIG. 13 are switched based on the conventional example, and the vertical synchronization is performed at the same timing as in FIG. 8 shows the relationship between the left and right image data transferred to the stereoscopic frame buffer 177 after the signal V3 and the vertical synchronizing signal, and from the frame buffers 175 and 174 to the stereoscopic frame buffer 177 at the timing of OUT / buff in FIG. The figure shows a state in which a left-eye image and a right-eye image are alternately transferred.
[0145]
First, in the vertical synchronizing signals V3 (image data R1) and V4 (image data L1), the right-eye symbol 850R and the left-eye symbol 850L determined by the variable display are alternately output to the stereoscopic frame buffer 177. The alternate output of the design 850R and the design 850L for the left eye continues until the vertical synchronization signals V5 (image data R2) and V6 (image data L2), and when the next vertical synchronization signal V7 is reached, the image data for the right eye generates a big hit. Switching to the image data R3 of the notification symbol 860R, and then switching to the image data L3 of the symbol 860L for the left eye in the vertical synchronization signal V8.
[0146]
On the display surfaces corresponding to the vertical synchronization signals V6 to V7, the symbol 850L for which the image for the left eye is determined is seen, whereas the image for the right eye sees the symbol 860R of the big hit, and the vertical synchronization signals V6, V7 The image data is completely different between the left and right, and in the fluctuation display device 8, the symbol 860 of the jackpot occurrence notification is observed in the right eye, and the fluctuation display pattern 850 is observed in the left eye, and the image observed by the left and right eyes is completely different. Will be different.
[0147]
Then, at the time of the vertical synchronization signal V8, the image for the left eye is updated to the jackpot occurrence notification symbol 860L. At this point, the left and right images match, and it can be observed that the image has been switched to the new symbol 860.
[0148]
That is, according to the conventional control, the vertical synchronizing signals V6 and V7 not only cause the screen to largely switch from the fluctuating display to the jackpot occurrence notification, but also allow the left and right eyes to observe completely different images. Gives the player a sense of discomfort.
[0149]
In the case where the symbols 850 are sequentially switched while scrolling in the same background as during the variable display, the change in the entire screen is small, so that the player does not feel uncomfortable.
[0150]
Further, with the vertical synchronization signals V6 and V7, since there is no relevance between the left and right images, a three-dimensional image cannot be observed, and the image is temporarily observed as a two-dimensional image. Although the stereoscopic display is restored from V8, when the positions of the symbol 850 and the symbol 860 in the depth direction are different, the parallax between the left and right images from the vertical synchronization signal V8 is recognized and the stereoscopic image can be observed. Since it takes time before the game, the sense of incongruity felt by the player increases.
[0151]
Therefore, according to the present invention, as shown in FIGS. 15 and 16 described below, when the screen greatly changes, the screen or the image is temporarily darkened to prevent the left and right image data from becoming completely different images. is there.
[0152]
FIGS. 15 and 16 are flowcharts showing an example of the control performed by the synthesizing / conversion device 170, and are repeated at predetermined time intervals (for example, every 16.7 msec = 1/60 second equal to the generation cycle of the vertical synchronization signal). It is what is performed. The processes in FIGS. 15 and 16 are performed in parallel by multitasking.
[0153]
First, the flowchart of FIG. 15 is a process for transferring image data sent for each vertical synchronization signal to each frame buffer and obtaining data for comparing image changes.
[0154]
In step S1, the RGB image data and the L / R signal are read, and in step S2, the received image data is written to either the left-eye frame buffer 174 or the right-eye frame buffer 175 according to the L / R signal. After completion of the writing in step S3, comparison data for image change comparison is calculated from the image data written in step S2 in step S4.
[0155]
That is, in step S4, the RGB image data is converted into YCbCr image data.
[0156]
Y = LrR + LgG + LbB
Cb = (BY) / 2 (1-Lb)
Cr = (RY) / 2 (1-Lr)
Here, Lr, Lg, and Lb are coefficients indicating the luminance of each of the RGB primary colors when the luminance of white is set to 1.
[0157]
Next, in step S5, the average value of one screen is calculated for each component of the luminance Y, blue Cb, and red Cr, the average value of the luminance Y is set to dn (Y), and the average value of the blue Cb is set to dn (Cb). , And the average value of red Cr is obtained as dn (Cr).
[0158]
Then, in step S6, these average values are stored as data indicating the image level in the comparison buffer 176R or 176L corresponding to the L / R signal.
[0159]
By the above processing, as shown in FIG. 8, in the vertical synchronization signal V0, the image data R1 is stored in the right-eye frame buffer 175, and the average of the luminance Y, blue Cb, and red Cr components of the image data R1 is obtained. The values dn (Y), dn (Cb), and dn (Cr) are stored in the right eye comparison buffer 176R.
[0160]
Next, the image data output processing of FIG. 16 will be described.
[0161]
In step S11, the L / R signal is read, and in step S12, it is determined whether the current L / R signal is transmitting left or right image data.
[0162]
If the L / R signal is L, the process proceeds to step S13 to select the right-eye comparison buffer 176R in order to select the processing of the right-eye image. On the other hand, if the L / R signal is R, the process proceeds to step S14 to select the left-eye comparison buffer 176L to select the processing of the left-eye image. This is because if the L / R signal is L, the left-eye frame buffer 174 is being written by the processing of FIG. 15, and then the left-eye comparison buffer 176L is being written. Is to compare and output the image data on the opposite side.
[0163]
Next, the process proceeds to step S15 and thereafter, and the magnitude of the image change on the side selected in steps S13 and S14 is determined based on the comparison data.
[0164]
First, in step S15, as shown in FIG. 9, the absolute value of the difference is obtained for each of the average values of the two comparison data dn and dn + 1 in the comparison buffer 176R or 176L. The comparison data dn indicates comparison data of the preceding image data, and dn + 1 indicates comparison data corresponding to the subsequent image data.
[0165]
The absolute value of the difference between the comparison data of the previous and next image data is calculated as follows for luminance, blue, and red.
[0166]
Luminance difference = | dn + 1 (Y) −dn (Y) |
Blue difference = | dn + 1 (Cb) −dn (Cb) |
Red difference = | dn + 1 (Cr) −dn (Cr) |
Next, in and after step S16, each difference obtained in step S15 is compared with a predetermined threshold value to determine whether or not the image change is large.
[0167]
First, in step S16, it is determined whether or not the luminance difference is larger than a predetermined value Yk. If it is larger than Yk, it is determined that the change in the image before and after is large, and the process proceeds to step S19. Proceeds to step S17.
[0168]
In step S17, it is determined whether or not the blue difference is greater than a predetermined value bk. If the blue difference is greater than bk, the image change before and after is determined to be large, and the process proceeds to step S19. Proceed to step S18.
[0169]
In step S18, it is determined whether or not the red difference is greater than a predetermined value rk. If the red difference is greater than rk, it is determined that the image change before and after is large, and the process proceeds to step S19. Proceed to step S20.
[0170]
This step S20 is a case where the difference between luminance, blue and red is less than or equal to the predetermined values Yk, bk and rk and the image change is small. In this case, the frame buffer 174 or the side selected in steps S13 and S14 is used. 175 to the stereoscopic frame buffer 177.
[0171]
On the other hand, in step S19 in which the image change is determined to be large, the image data before the frame buffer 174 or 175 on the side selected in steps S13 and S14 is deleted, and instead, the low luminance stored in the ROM 173 is replaced. The image data in the state is written to the stereoscopic frame buffer 177.
[0172]
Then, after outputting the data of the frame buffer or the ROM to the stereoscopic frame buffer 177 in step S19 or step S20, the output image data is deleted in the frame buffers 174 and 175 as shown in FIG. While the subsequent image data is shifted, the comparison buffers 176R and 176L delete the previous comparison data and shift the subsequent comparison data to the right in the drawing, as shown in FIG. Prepare for comparison.
[0173]
By the above processing, the magnitude of the image change is determined. If the image change is small, the image data of the frame buffers 174 and 175 is output to the stereoscopic frame buffer 177 as it is. In other words, image data in a low-luminance state is output from the ROM 173 instead of the data in the frame buffer, and the screen is in a low-luminance state to prevent the image data observed by the left and right eyes from being completely different. it can.
[0174]
The image data in the low-luminance state may be set, for example, such that all the pixels are of a preset low-luminance single color.For example, if the pixel is an achromatic color, it is set to a low-lightness color such as black or gray. , A chromatic color is set to a turbid color (gray) with low saturation. The lightness indicates the lightness and darkness of the color. The lightness is white when the lightness is maximum, and black when the lightness is minimum. The saturation indicates the vividness of the color. When the saturation is maximum, the color becomes a pure color of the hue, and when the saturation is minimum (there is no hue), the color becomes gray.
[0175]
In addition, by setting a screen of black, gray, or the like as the low luminance state, it is possible to prevent a sudden change in color, and to suppress a sense of discomfort given to the player.
[0176]
The setting of the predetermined values (thresholds) Yk, bk, and rk for determining the magnitude of the image change is appropriately set according to the content of the rendering of the image data, and is a value suitable for the content of the rendering through experiments and the like. Is set to
[0177]
Here, the case of switching from the symbol 850 for variable display of FIG. 7 to the symbol 860 of the jackpot occurrence notification shown in FIG. 13 by the above-described processing as in FIG. 14 will be described with reference to FIG.
[0178]
FIG. 17 shows the relationship between the left and right image data transferred to the stereoscopic frame buffer 177 after the vertical synchronization signal V3 and the vertical synchronization signal at the same timing as in FIG.
[0179]
First, in the vertical synchronization signals V3 (image data R1) and V4 (image data L1), the right-eye symbol 850R and the left-eye symbol 850L determined by the variable display are alternately output to the stereoscopic frame buffer 177.
[0180]
In the cycle of the vertical synchronizing signal V4, as shown in FIG. 8, the symbol 860R of the jackpot occurrence notification is written in the right-eye frame buffer 175, and the comparison data R3d is written in the comparison buffer 176R.
[0181]
Then, in the next vertical synchronizing signal V5, as shown in FIG. 9, the comparison data R2d and R3d of the comparison buffer 176R for the right eye are compared, and the comparison data R2d based on the symbol 850R for the variable display and the big hit for the big hit are displayed. In the comparison data R3d based on the symbol 860R, the image change is determined to be large in the determinations in steps S16 to S18.
[0182]
Therefore, in the period of the vertical synchronization signal V5, the image data in the low-brightness state of the ROM 173 is output instead of the image data R2 of the right-eye frame buffer 175.
[0183]
Further, in the next vertical synchronizing signal V6, as shown in FIG. 9, the comparison data L2d and L3d of the left eye comparison buffer 176L are compared, and the comparison data L2d based on the symbol 850L for the variable display and the big hit for the big hit are displayed. The comparison data L3d based on the symbol 860L is determined to have a large image change in the determinations in steps S16 to S18.
[0184]
Therefore, in the cycle of the vertical synchronizing signal V6, the image data in the low-brightness state of the ROM 173 is output instead of the image data L2 of the left-eye frame buffer 174, and written into the stereoscopic frame buffer 177.
[0185]
Then, after the next vertical synchronizing signal V6, the comparison data R3d and R4d of the right eye comparison buffer 176R are compared as shown in FIG. 9, and both are comparison data R3d and R4d based on the symbol 860R for the big hit. Therefore, in the determinations in steps S16 to S18, the image change is determined to be small, and the image data R3 in the right-eye frame buffer 175 is output and written to the stereoscopic frame buffer 177.
[0186]
Therefore, as shown in FIG. 17, in the images output up to the vertical synchronizing signal V4, the symbols 850L and R for variable display are alternately observed, but in the image output by the vertical synchronizing signal V5, the right eye is low. An image in a luminance state (for example, black) is obtained, and only the pattern 850L for variable display is observed with the left eye. Since there is no parallax, the image is observed as a two-dimensional image.
[0187]
Further, the image output by the vertical synchronizing signal V6 has an image in which the left eye also has a low luminance state, the left and right images are both in a low luminance state, and the image disappears for a moment.
[0188]
Then, after the vertical synchronizing signal V7, the symbols 860R and 860L for the big hit are output alternately, and a stereoscopic image according to the parallax can be observed.
[0189]
In this way, when the image change is large, such as the screen of the jackpot occurrence notification from the fluctuation display, the left and right images are temporarily set to the low-luminance state, so that it is possible to prevent the left eye and the right eye from observing images completely different during the pattern switching. Therefore, the player does not feel uncomfortable, and by eliminating the image for a moment, the stereoscopic view of the new image can be smoothly performed. Then, it is possible to suppress a sense of discomfort when the image that the player is following with his eyes is suddenly switched.
[0190]
Furthermore, according to the present invention, since the magnitude of the image change is determined on the synthesis conversion device 170 side, the switching of the three-dimensional image can be smoothly performed without changing the image data or the sequence data. Therefore, it is not necessary to process image data or the like, and the manufacturing cost can be reduced.
[0191]
Further, in the above embodiment, an example in which all pixels of the preceding and following images are converted to YCbCr image data and then compared is shown. However, as shown in FIG. Of the display area 80 of the variable display device 8, a variable display area 81 that is set in advance to change the symbol may be used. The weight of the variable display area 81 is increased, and the weight of the peripheral portion is reduced.
[0192]
In this case, compared to comparing the entire image before and after, the amount of YCbCr conversion and comparison data of the image before and after can be greatly reduced, and the processing can be speeded up. Alternatively, weighting may be performed in accordance with the position of the pixel, and an area for determining the magnitude of the image change may be set in advance. In the case of FIG. 18, the weighting in the variable display area 81 is 100 [%]. Weights other than the above are 0 [%].
[0193]
19 to 23 show a second embodiment, in which the magnitude of an image change is determined for compressed image data (particularly, moving image data), and when the image change is large, an image in a low luminance state is set. is there.
[0194]
The display control device 150 is almost the same as that in FIG. 2 described above, and a part of the composition conversion device 170 is different as described later. In FIG. 2, a CPU 151 reads out compressed image data stored in a font ROM 157 or the like and instructs the VDC 156 to decode (extend) and draw the image data, and the identification of the left and right images is included in the image data. . The compressed image data may be stored not only in the font ROM 157 but also in a storage unit (not shown) (for example, a disk device, an external storage unit, or a NAS (storage unit on a network)). The decoding of the compressed image data may be executed by the CPU 151.
[0195]
FIG. 19 is a block diagram showing the configuration of the composition conversion apparatus 170, in which the comparison buffer of the first embodiment is deleted, and the other configuration is the same as that of the first embodiment. In the synthesizing conversion device 170, the data is written to the left-eye frame buffer 174 or the right-eye frame buffer 175 according to the L / R signal, then transferred to the stereoscopic frame buffer 177 in the next cycle, and output to the variable display device 8. I do.
[0196]
Next, FIG. 20 shows an example of compressed image data, and shows a case in which a variable display is performed using MPEG-1 or 2 compressed image data.
[0197]
In FIG. 20, the compressed image data of MPEG-1 and MPEG-2 has a GOP (Group Of Pictures) composed of one I picture and a plurality of P and B pictures as one block (hereinafter referred to as GOP = block). By decoding and drawing blocks continuously, a continuous moving image is reproduced.
[0198]
An I picture (intra-frame coded image) is composed of independent image data regardless of preceding and succeeding images, and a P picture (forward prediction coded image) performs inter-frame prediction in one direction from a past image, The difference is coded, and the B picture (bidirectionally coded image) is obtained by coding the difference from a past I picture or P picture and a future I picture or P picture.
[0199]
Here, the compressed image data is composed of a plurality of blocks including the I pictures i1 to i7, the variable display is performed using the I pictures i1 to i5, and the screen that informs the occurrence of the jackpot with the I pictures i6 and i7 and thereafter is displayed. The case of switching is shown.
[0200]
Here, the display control device 150 compares the I pictures of a plurality of blocks from the compressed image data to determine the magnitude of the image change in the same manner as in the first embodiment, and if the image change is large, By replacing one I picture with image data in a low-luminance state, it is possible to prevent a left-eye image and a right-eye image from being temporarily different when an image change is large.
[0201]
Therefore, a buffer 153a for comparing two blocks GOPj and GOPj + 1 is set in the RAM 153 of the display control device 150, as shown in FIG.
[0202]
After reading the two blocks into the buffer 153a, the CPU 151 extracts the I picture in each block. Then, the average value of the YCbCr color data of each I picture is calculated. If the absolute value of the difference between the two average values exceeds a predetermined value, the I picture i (m) of the previously output block GOPj is set to low luminance. The image data is replaced with the state image data (FIG. 21A). When the compressed image data is MPEG, the color data is YCbCr, so that the conversion processing as in the first embodiment is not required. Note that j and m are codes indicating the order and are natural numbers.
[0203]
After that, after outputting GOPj to the VDC 156 side, the block GOPj + 1 is shifted to the output position (the left side in the figure), and then a new block GOPj + 2 is read, and YCbCr of I pictures i (m + 1) and i (m + 2) are similarly similarly read. The average value of the color data is calculated and compared (FIG. 21B). However, in the case of the last block GOPj + n, the data is output as it is without comparison.
[0204]
Next, FIG. 22 shows a flowchart in the case where the above processing is performed by the CPU 151 of the display control device 150. This flowchart is executed at a predetermined cycle. For example, the value is set according to the number of pictures of one block GOPj and can be output from the VDC 156 at a predetermined frame rate. When the frame rate is 16.7 msec ≒ 60 frames per second, the processing is executed every 250 msec.
[0205]
In FIG. 22, in step S31, it is determined whether or not the read image data is MPEG compressed image data. If it is MPEG, the flow advances to step S32 to read one block GOP of compressed image data into the buffer 153a.
[0206]
In step S33, it is determined whether or not a predetermined number (here, two blocks) of blocks have been stored in the buffer 153a. If not, the flow returns to step S32 to read the next block. On the other hand, if a predetermined number of blocks have been stored in the buffer 153a, or if it is the last block GOP, the process proceeds to step S34 to extract an I picture.
[0207]
In the extraction of the I picture in step S34, in FIG. 21, a picture number i (i = 1 to n) is assigned to each picture, the picture is examined while incrementing the picture number i, and if it is an I picture, it is extracted.
[0208]
When the I picture is extracted, the process proceeds to step S35, where the comparison counter m is incremented by 1, and then proceeds to step S36. Note that the initial value of the comparison counter m is 0.
[0209]
In step S36, the average value im (Y) is calculated as the image level for the extracted luminance component Y of the I picture, and the calculated average value of the luminance component Y is substituted for a variable D (m). Here, of the YCrCb color data of the MPEG compressed image data, the image before and after only the luminance component Y is compared to determine the magnitude of the image change. Here, since the human eye is more sensitive to a change in luminance than a change in hue, the magnitude of the image change is determined only by the change in luminance, and the increase in the computation load is suppressed.
[0210]
Next, in step S38, it is determined whether or not the comparison counter m has become 2 or more. If it is 2 or more, comparison data of two blocks has been obtained, and the process proceeds to step S39. Proceeding to S37, the picture number i is incremented before returning to step S34 to extract an I picture of the next block.
[0211]
In step S39 where the comparison data regarding the two luminance components Y is obtained, the I picture i (m) of the previously output block GOPj stored in the variables D (m) and D (m + 1) and the next block The absolute value of the difference between the average values of the luminance components Y of the I picture i (m + 1) of GOPj is determined, and it is determined whether the absolute value is equal to or greater than a predetermined value.
[0212]
If the absolute value of the difference is equal to or larger than the predetermined value, it is determined that the image change is large, and the process proceeds to step S40. If the absolute value of the difference is smaller than the predetermined value, the compressed image data of one block GOP is output as it is. Proceed to step S41.
[0213]
Note that the setting of the predetermined value for determining the magnitude of the image change is appropriately set according to the effect contents of the image data and the like, and is set to a value suitable for the effect contents by an experiment or the like.
[0214]
In step S40 when the image change is large, the I picture im of the previously output block GOPj is replaced with image data in a preset low luminance state. It is assumed that the image data in the low luminance state is stored in the font ROM 157 or the like.
[0215]
Next, in step S41, the previous block GOPj of the buffer 153a is output to the VDC 156 side, and in step S42, the subsequent block GOPj + 1 is shifted to the output position as described above.
[0216]
Further, in step S43, the comparison counter m is reset to 1, the average value of the luminance component Y of the block GOPj + 1 is set to a variable D (1), and the variable D (2) is reset to prepare for the next comparison.
[0219]
Finally, in step S44, the picture number i is set to the last picture number i + 1 of the shifted block GOPj + 1, and preparation is made for extracting an I picture from the next compressed image data to be read.
[0218]
By the above processing, as shown in FIG. 20, when switching from the variable display to the jackpot notification screen, the screen becomes as shown in FIG.
[0219]
In FIG. 23, since the I pictures i1 to i4 of the blocks GOP1 to GOP4 are image changes in the variable display area, it is determined that the image changes are small, and the I pictures are output without being replaced without being replaced.
[0220]
In the comparison between the block GOP5 including the I picture i5 and the block GOP6 including the I picture i6 of the jackpot notification screen, the average value of the luminance component Y is significantly different, and the absolute value of the difference becomes a predetermined value or more and is output earlier. The I picture i5 of the block GOP5 is output after being replaced with image data in a preset low luminance state.
[0221]
Thus, when a display effect is performed using the compressed image data, when the image change is large, such as a change display to a jackpot occurrence notification screen, the screen is temporarily set to a low brightness state, so that the left eye and the right eye are completely switched during the pattern switching. By observing a different image, the player does not feel uncomfortable, and by eliminating the image for a moment, it becomes possible to smoothly perform a stereoscopic view of a new image. Then, it is possible to suppress a sense of discomfort when the image that the player is following with his eyes is suddenly switched.
[0222]
In the above description, the average value of the luminance component Y is used as the data indicating the image level, and the magnitude of the image change is determined by comparing the image levels before and after. In addition to the luminance, the average value of hues such as bluish Cb and reddish Cr may be obtained and compared with each other to determine the magnitude of the image change.
[0223]
In the above description, MPEG-1 and -2 are shown as compressed image data, but the present invention can be applied to MPEG-4 and -7.
[0224]
In addition, in the said embodiment, although the case where the symbol switching process is performed on the screen of the jackpot occurrence notification is described, in addition, at the start and end of the reach in the variable display, when switching from the standby screen to the variable display screen, When the screen changes greatly, such as the re-lottery screen from the symbol confirmation during the variable display, if the left and right screens are temporarily set to the low brightness state, the same effect as above can be obtained, and a three-dimensional image is displayed It is possible to realize a high quality stereoscopic view with a gaming machine that performs the above.
[0225]
Further, in the above embodiment, the comparison was performed for two images. However, comparison data was calculated for a large number of images, an average value of these comparison data was obtained, and the absolute value of the difference between the current comparison data and the average value was calculated. It may be determined that the image is changed.
[0226]
Further, in the above embodiment, the case where the screen in the low luminance state is a screen such as black or gray is shown, but the background image may be output in the low luminance state, and in this case, the brightness of the entire screen is Is small, it is possible to suppress a sense of discomfort given to the player.
[0227]
The embodiments disclosed this time are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
[Brief description of the drawings]
FIG. 1 is a front view showing a configuration of an entire gaming machine according to an embodiment of the present invention.
FIG. 2 is a block diagram showing a part of a control system.
FIG. 3 is a block diagram showing a composition conversion apparatus.
FIG. 4 is an exploded perspective view for explaining the optical system.
FIG. 5 is a plan view of the optical system.
FIG. 6 is a perspective view showing a relationship between an actual image and a virtual image when a symbol is displayed three-dimensionally.
FIGS. 7A and 7B are explanatory diagrams illustrating a state of generation and synthesis of left and right images performed by a display control device and a synthesis conversion device. FIG. 7A illustrates data on a font ROM, and FIG. (C) shows a left-eye image based on parallax, and (D) shows a combined image for output obtained by combining left and right images.
FIG. 8 shows a vertical synchronization signal V_SYNC, image data (DATA), L / R signals, left and right frame buffers (R / buff, L / buff), data of a comparison buffer (CMP / buff), and a stereoscopic frame buffer. 9 is a timing chart showing a relationship between (OUT / buff) data and output data (LCD_OUT) and time.
FIG. 9 is a state transition diagram illustrating states of a left-eye comparison buffer and a right-eye comparison buffer corresponding to a vertical synchronization signal.
FIG. 10 is a state transition diagram illustrating states of a left-eye frame buffer and a right-eye frame buffer corresponding to a vertical synchronization signal.
FIG. 11 is a state transition diagram of right-eye image data and left-eye image data corresponding to the vertical synchronization signal V_SYNC when performing vertical scrolling.
FIG. 12 is an explanatory diagram of a vertical scroll.
FIGS. 13A and 13B are explanatory diagrams showing the generation and composition of the left and right images of a jackpot occurrence notification symbol performed by the display control device and the composition conversion device, wherein FIG. 13A shows data on a font ROM, and FIG. A right-eye image based on parallax is shown, (C) is a left-eye image based on parallax, and (D) is a combined image for output obtained by combining left and right images.
FIG. 14 is a state transition diagram of right-eye image data and left-eye image data corresponding to the vertical synchronization signal V_SYNC when the vertical display of the variable display and the jackpot occurrence notification are switched according to the conventional example.
FIG. 15 is a flowchart of a transfer process performed by the combination conversion device.
FIG. 16 is a flowchart of an output process performed by the synthesis conversion device.
FIG. 17 is a state transition diagram of right-eye image data and left-eye image data corresponding to the vertical synchronization signal V_SYNC when the vertical display of the variable display and the jackpot occurrence notification are switched according to the present invention.
FIG. 18 is a schematic diagram showing a relationship between a display area and a variable display area.
FIG. 19 shows the second embodiment and is a block diagram of a synthesis conversion device.
FIG. 20 shows an example of compressed image data, showing the relationship between blocks and I pictures.
21A and 21B show a buffer for comparing compressed image data, wherein FIG. 21A shows a state in which a first comparison is performed, and FIG. 21B shows a state in which a second comparison is performed.
FIG. 22 is a flowchart illustrating an example of control performed by the display control device.
FIG. 23 also shows an example of compressed image data, shows the relationship between blocks and I-pictures, and shows how a low-luminance image is replaced when the screen changes.
[Explanation of symbols]
8 Variable display device
150 Display control device
151 CPU
170 Synthetic conversion device
171 control unit
172 RAM
173 ROM
174 Left eye frame buffer
175 Right eye frame buffer
176 comparison buffer
177 Stereoscopic frame buffer
801 light source
810 Light-emitting element
811 Polarizing filter
812 Fresnel lens
802 Fine phase difference plate
803 polarizing plate
804 LCD panel
805 polarizing plate
806 diffuser

Claims (8)

In a gaming machine including a display device that shows a stereoscopic image to a player by displaying a left-eye image and a right-eye image in a display area, and a display control unit that controls image display of the display device,
The display control means,
Generating means for respectively generating the left-eye image and the right-eye image,
Combining the generated image for the left eye and the image for the right eye, and combining means for displaying the image on the display device,
The combining means includes:
Image level calculating means for calculating an image level of an image displayed on the display device,
Based on the image level, an image change determination unit that determines the magnitude of an image change when an image displayed on the display device changes,
When the image change is determined to be large, a low-luminance image output unit that switches the image displayed on the display device to an image in a preset low-luminance state and outputs the image to the display device. A gaming machine. In a gaming machine including a display device that shows a stereoscopic image to a player by displaying a left-eye image and a right-eye image in a display area, and a display control unit that controls image display of the display device,
The display control means,
Generating means for respectively generating the left-eye image and the right-eye image,
Combining the generated image for the left eye and the image for the right eye, and combining means for displaying the image on the display device,
The generation means,
Image level calculating means for calculating an image level of an image displayed on the display device,
Based on the image level, an image change determination unit that determines the magnitude of an image change when an image displayed on the display device changes,
When the image change is determined to be large, a low-luminance image generating unit that switches the image displayed on the display device to an image in a preset low-luminance state and outputs the low-luminance image to the synthesizing unit. Gaming machine. The gaming machine according to claim 2, wherein the generation unit expands the compressed image data to generate image data of a left-eye image and a right-eye image. The gaming machine according to any one of claims 1 to 3, wherein the image level is obtained by digitizing all or any of luminance, hue, and saturation of a pixel. The gaming machine according to claim 4, wherein the image change determination means determines that the image change is large when the difference between the image levels before and after the image change is equal to or more than a predetermined value. The game according to claim 4, wherein the image level calculation unit weights the image level according to the position of the display area, and calculates the image level based on the weighting. 7. Machine. The gaming machine according to claim 6, wherein the image level calculation means sets a large weight for a central portion of the display area, and sets a small weight for a peripheral portion. The gaming machine according to claim 1, wherein the image in the low luminance state is a black or gray image set in advance.

Images