JP2005177076A - Game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To inhibit the accumulation of the fatigue as caused when the players watch the stereoscopic images for the prolonged time. <P>SOLUTION: In the game machine, a liquid crystal display panel 804 capable of displaying the stereoscopic images is installed while a plurality of stereoscopic display objects 236, 237 and 238 making up the stereoscopic images is displayed on the liquid crystal display panel 804. In the game machine, the degree of clearness of the stereoscopic display object 237 is made lower than that of the stereoscopic display object 236 in the situation under which the stereoscopic display object 237 is displayed on the side closer to the players as viewed from the liquid crystal display panel 804 and the stereoscopic display object 236 on the farther side so that the players are induced to watch the stereoscopic display object 236. This allows the players to continuously watch the stereoscopic display object 236 displayed on the farther side, thereby reducing the ocular fatigue of the players. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a gaming machine including an image display device capable of displaying a stereoscopic image.

  For example, Patent Document 1 and Patent Document 2 disclose gaming machines that can increase the interest of a player by displaying so-called 3D (stereoscopic) images.

In the above, a stereoscopic image referred to as a so-called binocular parallax method that utilizes the fact that a player views different images with the right eye and the left eye to form a stereoscopic image at the visual center. A forming method is used.
Japanese Patent Laid-Open No. 7-16351 JP-A-8-141169

  In the situation where a stereoscopic image is formed by the binocular parallax method described above, the binocular focus is adjusted to each of the right eye image and the left eye image displayed on the image display surface, while the line of sight is the image view. It is adjusted to a position away from the image display surface in the direction along the front-rear direction for the viewer. This is an unnatural state that cannot be in daily life, and is known as “contradiction of congestion and regulation”.

  A player who requests a more innovative image expression can obtain a new interest by using a 3D image. On the other hand, if the above-mentioned unnatural state continues for a long time, compared to the case of continuing to watch a flat display. Eye strain is likely to occur. Due to the nature of the gaming machine, it is not uncommon for games to continue for a long time, but if a player suspends the game because of eye strain, it is preferable for business that the operating rate is reduced for the game hall. There can be no state. Also, it is not pleasant for players. In particular, eye strain tends to progress in a situation where a stereoscopic image is formed on the near side of the player with respect to the image display surface. The stereoscopic image is formed in a three-dimensional space that spreads in front of the player's eyes, and some of the stereoscopic images that are displayed at a certain moment within the space may appear on a relatively far side for the player. Some parts appear on the near side. Among them, the player's eye fatigue varies depending on which part the player views, so it is difficult to accurately estimate the player's eye fatigue just by viewing the stereoscopic image. .

  The present invention has been made in view of the above problems, and enables the player's point of gaze to be guided to the intended position in the three-dimensional space, thereby accurately grasping the player's viewing target. By making it possible to estimate the eye fatigue of the player more accurately and in addition to guiding the player's gazing point to a position that reduces the eye fatigue, the progression of eye strain by continuing to view the stereoscopic image It is an object of the present invention to provide a gaming machine including a stereoscopic image display device that can be suppressed and can view a stereoscopic image for a long time.

(1) A first aspect of the invention is a gaming machine including a stereoscopic image display device that allows a player to view a stereoscopic image by binocular parallax, and a stereoscopic image that is viewed by the player on the stereoscopic image display device. Includes a plurality of stereoscopic display objects, a parallax amount calculating means for calculating a parallax amount between a right-eye image and a left-eye image forming each of the plurality of stereoscopic display objects, and the plurality of stereoscopic displays 3D image display control means for changing display clarity of the other stereoscopic display object based on a difference between a parallax amount of a reference stereoscopic display object and a parallax amount of another stereoscopic display object among the display objects. It is a gaming machine characterized by having.
(2) The second invention is characterized in that the stereoscopic image display control means makes the display definition of the reference stereoscopic display object higher than the display definition of the other stereoscopic display object (1) ).
(3) The third invention is controllable to a relax mode in which the player's eye accommodation muscles are relaxed, and the stereoscopic image display control means provides the player with the stereoscopic image display device in the relax mode. The gaming machine according to (2), wherein a stereoscopic display object that is stereoscopically displayed at a position far from the image display surface is used as the reference stereoscopic display object.
(4) A fourth invention is a gaming machine including a stereoscopic image display device that allows a player to view a stereoscopic image by binocular parallax, and a stereoscopic image that is viewed by the player on the stereoscopic image display device. Is composed of a plurality of stereoscopic display objects, and among the plurality of stereoscopic display objects, the amount of parallax between the right-eye image and the left-eye image forming a specific stereoscopic display object is determined in advance. A parallax amount calculating unit that calculates at intervals, a cumulative parallax amount calculating unit that accumulates the parallax amount calculated by the parallax amount calculating unit and calculates a cumulative parallax amount as the entire stereoscopic image, and is set in advance. A display clearness of the stereoscopic display object in relation to the parallax amount of each of the plurality of stereoscopic display objects displayed on the stereoscopic image display device, based on a comparison result between the allowable value and the accumulated parallax amount. It is a gaming machine characterized by having a stereoscopic image display control means for changing the degree.
(5) In a fifth aspect of the present invention, the stereoscopic image display control means relates to the parallax amount between the right-eye image and the left-eye image forming each of the plurality of stereoscopic display objects. 3D display objects of the plurality of 3D display objects by the image definition changing means for changing the degree that the player can clearly observe each of the 3D display objects, and the image definition changing means. Viewing object guidance means for displaying the plurality of stereoscopic display objects at a plurality of display claritys, and guiding the player's viewing target to a stereoscopic display object having a higher display definition. And the viewing target guiding means includes a stereoscopic display that is not subject to accumulation of parallax compared to the display clarity of a stereoscopic display object that is subject to accumulation of parallax. By reducing the display definition of the object, the player's viewing target is guided to the stereoscopic display object that is the target of the parallax amount accumulation, and the parallax amount accumulation unit is the stereoscopic display that is the target of the parallax amount accumulation. (4) The gaming machine according to (4), wherein the cumulative parallax amount is calculated based on a parallax amount between the right-eye image and the left-eye image of the object.
(6) In a sixth aspect of the present invention, the viewing target guiding unit is configured to determine a difference between a parallax amount of the stereoscopic display object that is the target of the parallax amount accumulation and a parallax amount of the stereoscopic display object that is not the target of the parallax amount accumulation. The gaming machine according to (5), characterized in that as the absolute value is larger, the display clarity of the stereoscopic display object that is not the target of accumulating the amount of parallax is reduced.
(7) In a seventh aspect of the present invention, based on the comparison result between the accumulated amount of parallax and the preset allowable value, the appearance position of the stereoscopic display object is determined to be an image of the stereoscopic image display device for the player. In the case where it is determined that the display object is unevenly distributed on the front side of the display surface, the observation target guiding unit has a display definition of the stereoscopic display object that is stereoscopically displayed at a position farther than the image display surface for the player. In contrast, in the gaming machine according to (5) or (6), the display clarity of the stereoscopic display object that is stereoscopically displayed in front of the image display surface is reduced.
(8) In an eighth invention, the parallax amount is on an image display surface of the stereoscopic image display device between a left-eye image and a right-eye image forming each of the plurality of stereoscopic display objects. The gaming machine according to any one of (1) to (7), wherein the gaming machine is a value quantified based on a shift amount in pixel units.

(1) According to the first invention, the display visibility is changed in relation to the parallax amount of the stereoscopic display object that is closely related to the display position along the player's front-rear direction, so that the player's viewing target Can be induced. For example, a stereoscopic display object displayed closest to the player can be clearly displayed, and conversely, a stereoscopic display object displayed farthest can be clearly displayed. In the case where the accumulation degree of the eye strain of the player accompanying the continuous viewing of the stereoscopic display object is estimated, a plurality of stereoscopic display objects are obtained by guiding the player's viewing target as described above. Are displayed at the same time, the estimation of which stereoscopic display object the player is paying attention to becomes more accurate, and therefore the accumulation degree of the eye fatigue of the player can be estimated more accurately. In addition, when relieving the eyestrain of the player, the stereoscopic display object that is effective in relieving the eyestrain is guided so that it becomes the object to be viewed by the player. It becomes easy to relieve fatigue.
(2) According to the second invention, since the player's viewing target can be guided to the reference stereoscopic display object, the player's eye strain related to the degree of projection of the stereoscopic image to be viewed 3D display object can be accurately grasped from the appearance position of the reference stereoscopic display object, and the player's viewing target is displayed backward by displaying the reference stereoscopic display object backward. It can be induced and fatigue can be reduced.
(3) According to the third invention, by guiding the player's object to be viewed to the stereoscopic display object displayed at a farther position, the player's eye strain can be maintained even if the game is continued for a long time. Accumulation can be suppressed. At this time, although the display definition is lowered, the stereoscopic display object is also displayed on the side closer to the player, so that the stereoscopic degree of the displayed stereoscopic image is maintained and the presence is enhanced. Yes, it can maintain interest.
(4) According to the fourth invention, from the cumulative value of the values related to the amount of parallax between the right-eye image and the left-eye image forming a plurality of stereoscopic display objects constituting the displayed stereoscopic image. The visual burden (eye strain) over the entire viewing time of the player can be estimated quantitatively, and is displayed on the stereoscopic image display device based on the comparison result between this accumulated value and a predetermined allowable value. By changing the definition of each 3D display object, it is possible to guide the player's observation target to the desired 3D display object to alleviate eye strain or increase the interest of the player.
(5) According to the fifth invention, when the stereoscopic display object displayed clearly and the stereoscopic display object displayed unclearly are displayed at different positions along the depth direction, the player's viewpoint is The player's viewpoint can be guided to the stereoscopic display object to be calculated for the amount of parallax by using the guidance to the position where the clear stereoscopic display object is displayed. Thereby, the visual burden on the observer can be estimated more accurately.
(6) According to the sixth invention, since the stereoscopic display object displayed at a position distant along the depth direction with respect to the stereoscopic display object that is the target of accumulating the parallax amount, the sharpness decreases. Using the difference as a clue, the player can easily follow a clearer image. Therefore, the player's line of sight is more easily guided to the stereoscopic display object that is the target of the parallax amount accumulation.
(7) According to the seventh invention, it is possible to promote the relaxation of the eyestrain of the player by guiding the observation target to the stereoscopic display object that is stereoscopically displayed at a position far from the image display surface. Become.
(8) According to the eighth invention, it becomes easy to quantitatively handle the degree of stereoscopic display for each stereoscopic display object, and the processing load by the computer or the like is reduced to increase the processing speed or the capacity of the program. Can be reduced.

  FIG. 1 is a front view showing the overall configuration of a gaming machine (a CR machine with a card ball lending unit) showing an embodiment of the present invention, and FIG. 2 is a block diagram of a control system.

  A front frame 3 of a gaming machine (pachinko gaming machine) 1 is assembled to a main body frame (outer frame) 4 through a hinge 5 so as to be capable of opening and closing, and a gaming board 6 is a storage frame (attached to the back of the front frame 3). (Not shown).

  On the surface of the game board 6, a variable display device (variable display means) 8, a variable winning device 10 with a big winning opening, general winning openings 11 to 15, a starting opening 16, normal symbol starting gates 27 </ b> A and 27 </ b> B, a normal symbol A game area is formed in which the display 7, the normal variation winning device 9 (auxiliary winning means) and the like are arranged. A cover glass 18 that covers the front surface of the game board 6 is attached to the front frame 3.

  In the display area of the variable display device (display device) 8, for example, three special symbols (identification information) of left, middle, and right are displayed together with the background and characters. For example, numbers “0” to “9” and alphabet letters “A” to “E” are assigned to these special symbols.

  When there is a winning game ball at the start port 16, the variable display device 8 displays the special symbols composed of the above-described numbers and characters in a variable manner (for example, scroll display). When a winning to the start port 16 is made at a predetermined timing (specifically, when the special symbol random number counter value extracted at the time of winning detection is a winning value), it is a combination of special symbols that will be a big hit. The result of the variable display game is displayed in a state in which the left, middle and right special symbols are aligned (specific result mode). At this time, the big prize opening of the variable prize winning device 10 opens wide for a predetermined time (for example, 30 seconds), and a big hit state (special game state) in which many game balls can be obtained.

  The winning of the game ball to the start port 16 is detected by a special symbol start sensor 52 (see FIG. 2). The passing timing of the game ball (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 used as the special symbol winning memory and the game control device 100. Is stored in a predetermined storage area (special symbol random number storage area) within a maximum of a predetermined number of times (for example, a maximum of four consecutive times). The number stored in the special symbol winning memory is displayed on the special symbol memory state display 17 including a plurality of LEDs provided on the lower side of the variable display device 8. The game control device 100 plays a variable display game on the variable display device 8 based on the special symbol winning memory. Note that the number stored in the special symbol storage state indicator 17 may be set to an arbitrary value.

  The normal symbol display unit 7 starts to display a variation of a normal symbol (for example, a symbol consisting of one number) when a winning game ball is awarded to the normal symbol starting gates 27A and 27B. When winning to the normal symbol start gates 27A and 27B is made at a predetermined timing (specifically, when the normal symbol random number counter value at the time of winning detection is a winning value), it becomes a hit state related to the normal symbol, A normal symbol stops at a winning symbol (hit number). At this time, the normal variation winning device 9 provided on both sides of the start port 16 opens greatly for a predetermined time (for example, 0.5 seconds), and the winning possibility of the game ball to the start port 16 is increased.

  The passing of the game ball to the normal symbol start gates 27A and 27B is detected by a normal symbol start sensor 53 (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 memory in the game control device 100 as the normal symbol winning memory. In the area (ordinary symbol random number storage area), a predetermined number of times (for example, a maximum of four consecutive times) is stored as a limit. The number stored in the normal symbol winning memory is displayed on the normal symbol storage state display 19 including a plurality of LEDs provided on the right side of the normal symbol display 7. The game control device 100 performs a winning lottery regarding the normal symbols based on the normal symbol winning memory. The number of memories stored in the normal symbol storage state indicator 19 may be set to an arbitrary value.

  An upper plate 21 for supplying a ball to the ball hitting device is provided on the open / close panel 20 below the front frame 3, and a lower plate 23, an operation unit 24 of the ball hitting device, and the like are provided on the fixed panel 22.

  A first notification lamp 31 and a second notification lamp 32 are provided on the front frame 3 on the upper portion of the cover glass 18 to notify a state such as abnormal discharge of a sphere by lighting.

  The operation panel 26 for the card ball lending unit includes a card balance display unit (not shown) for displaying the card balance, a ball lending switch 28 for instructing ball lending, a card return switch 30 for instructing to return the card, and the like. Is provided.

  The card ball lending unit 2 incorporates a card reader / writer and a ball lending control device for reading and writing data of a card (a prepaid card or the like) inserted into the card insertion unit 25 on the front surface. The operation panel 26 is formed on the outer surface of the upper plate 21 of the gaming machine 1.

  FIG. 2 is a block configuration diagram showing a control system centered on the game control device 100. The game control device 100 is a main control device (game control means) that controls the game in an integrated manner, and stores a CPU that controls the game control, and invariant information (game control program, game control data, etc.) for the game control. And a gaming microcomputer 101 incorporating a RAM used as a work area during game control, an input interface 102, an output interface 103, an information communication terminal 104, and the like.

  The gaming microcomputer 101 receives detection signals from various detection devices (special symbol start sensor 52, general winning opening sensors 18A to 18N, count sensor 40, continuation sensor 42, normal symbol start sensor 53) via the input interface 102. In response, various processes such as a jackpot lottery are performed. Then, through the output interface 103, the winning prize opening solenoid 36, the ordinary electric accessory solenoid 90, the ordinary symbol display 7 and the like are driven and controlled, and various control devices (display control device 150, discharge control device 200, decoration control device). 250, a command signal is transmitted to the sound control device 300) to control the game in an integrated manner. Note that the display control device (display control means) functions as an effect control device (effect control means) and controls the decoration control device 250 and the sound control device 300 based on an instruction from the game control device. Good.

  The board external information terminal 41 is connected to a hall computer (a game room, that is, an external computer installed in the hall in order to centrally manage the state of each gaming machine installed in the game hall), and a game control device The panel external information is output from 100 to the hall computer via the output interface 103 and the panel external information terminal 41. As the external information for the board, the progress of the variable display games 1 and 2 such as whether the symbol is confirmed, is a big attack, whether the probability fluctuation is a large attack, whether the fluctuation time is shortened (short time) is a large attack, etc. Contains information related to the state.

  The discharge control device 200 controls the operation of the payout unit based on a prize ball command signal from the game control device 100 or a ball rental request from the card ball rental unit 2, and causes the prize ball or the ball to be discharged.

  The decoration control device 250 controls the decoration light emitting devices such as a decoration lamp and LED based on the decoration command signal from the game control device 100, and the special symbol memory status indicator 17 and the normal symbol memory status indicator 19 Control the display.

  The sound control device 300 controls sound effect output from the speaker. Communication from the game control device 100 to various subordinate control devices (display control device 150, discharge control device 200, decoration control device 250, sound control device 300) is unidirectional from the game control device 100 to the subordinate control device. Only communication is allowed. Thereby, it is possible to prevent an illegal signal from being input to the game control device 100 from the dependent control device side.

  The information communication terminal 104 is a terminal for information communication with the outside, provided for reading data of the gaming microcomputer 101. An inspection device and a hall computer (both not shown) are connected via the information communication terminal 104. When an inspection device is connected to the information communication terminal 104, a code unique to the inspection device is sent from the inspection device to the gaming microcomputer 101 through a predetermined communication start protocol, and the gaming microcomputer 101 is based on this code. Then, it is determined whether or not the connected inspection device is genuine. If it is determined that the inspection device is genuine, the gaming microcomputer 101 permits the subsequent communication to continue, and based on the output request from the inspection device side, the ID unique to the gaming microcomputer 101 and the contents of the program The checksum etc. for identifying are output. In addition, when a hall computer is connected to the information communication terminal 104, the state of the gaming machine is output to the hall computer as appropriate, such as during large hits, probability fluctuations described later, during fluctuation display time reduction, and waiting for customers. You can also

  The display control device 150 performs two-dimensional or three-dimensional image display control, and includes a CPU (central processing means) 151, a VDC (Video Display Controller or drawing arithmetic means) 156, a ROM 152 that stores programs, a work area, A RAM 153 that stores a frame buffer, an interface 154, a font ROM 158 that stores image data (design data, background image data, moving image object data, texture data, etc.), a DMAC (Direct Memory Access Controller) that controls writing to and reading from the RAM 153, etc. 155, an oscillator 158 for generating a synchronization signal (reference clock), a strobe signal, and the like. The oscillator 158 includes a crystal resonator, an oscillator, and the like.

  The CPU 151 executes a program stored in the ROM 152 and outputs a predetermined variable display game to the variable display device 8 based on a display control command output from the game control device 100. Two-dimensional image information (symbol display) Information, background screen information, animation object screen information, etc.), creation of 3D image information (symbol display information composed of sprite data, polygon data, etc., background screen information, animation object screen information, etc.) The calculation results are stored in a predetermined area of the RAM 153 as a frame buffer.

  The VDC 156 transmits the image information stored in the RAM 153 to the LCD side (composite conversion device 170) at a predetermined timing (vertical synchronization signal V_Sync, L / R signal, horizontal synchronization H_Sync).

  The font (character) ROM 157 stores symbols such as identification information used in the variable display game, sprite data such as background and character, polygon data, texture data, and the like.

  The drawing processing performed by the VDC 156 performs two-dimensional and three-dimensional point drawing, line drawing, sprite drawing, triangle drawing, and polygon drawing, and further performs texture mapping, alpha blending, shading processing, hidden surface removal (such as Z buffer processing). Then, the image signal is output to the synthesis conversion device 170 via the γ correction circuit 159.

  Here, as the frame buffer, the frame buffer for the two-dimensional image and the frame buffer for the three-dimensional image are set in a predetermined storage area of the RAM 153, and the VDC 156 superimposes the two-dimensional image on another two-dimensional image. (Overlay) can also be output. Further, in the frame buffer set in the RAM 153, the right-eye image and the left-eye image for displaying a three-dimensional image may be stored in independent frame buffers.

  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, generates signals output from the VDC 156, for example, a vertical synchronization signal (V_SYNC) and a horizontal synchronization signal (H_SYNC), It is output to the display device 8.

  The image signal from the VDC 156 is input to the γ correction circuit 159 and then output to the synthesis conversion device 170. The γ correction circuit 159 corrects the non-linear characteristic of the illuminance with respect to the signal voltage of the variable display device 8 to adjust the display illuminance of the variable display device.

  Further, the CPU 151 of the display control device 150 determines whether the image data (RGB) to be output to the composite conversion device 170 is a left-eye image or a right-eye image based on the clock signal of the oscillator 158. An identifying L / R signal is output.

  Further, the CPU 151 controls the light emission amount (luminance) of the variable display device 8 based on the state of the variable display (for example, whether it is a normal variable display game or a big hit display) and the state of the game. A control signal DTY_CTR is generated based on the clock signal of the oscillator 158 and is output to the fluctuation display device 8.

  In FIG. 3, which shows a schematic configuration of the composition conversion device 170, the composition conversion device 170 is provided with a control unit 171, a right eye frame buffer 172, a left eye frame buffer 173, and a stereoscopic vision frame buffer 174. Based on the L / R signal from the CPU 151, the control unit 171 identifies whether the image data sent from the VDC 156 is image data for the left eye or image data for the right eye, and The image is written in the right-eye frame buffer 172, and the left-eye image is written in the left-eye frame buffer 173. Next, the image is written in the stereoscopic frame buffer 174 and the right-eye image and the left-eye image are combined to generate a stereoscopic image (three-dimensional image), and the stereoscopic image data is variably displayed as an RGB signal or the like. Output to device 8. The L / R signal indicates the left-eye image data at the Hi level (= 1), and the right-eye image data at the Lo level (= 0).

  As shown in FIG. 4, the formation (generation) of the stereoscopic image by combining the left-eye image and the right-eye image is performed every interval of the half-wave plate 821 provided in the fine retardation plate 802. In addition, the image for the left eye and the image for the right eye are combined. Specifically, since the half-wave plate 821 of the fine retardation plate 802 of the variable display device 8 of the present embodiment is arranged at intervals of the display unit of the liquid crystal display panel 804, the display of the liquid crystal display panel 804 is performed. The stereoscopic image is displayed so that the left-eye image (for example, odd lines) and the right-eye image (for example, even lines) are alternately displayed for each unit horizontal line (scanning line).

  In a normal display state, the image data (left-eye image data) transmitted from the VDC 156 during the output of the L / R signal at the Hi level is written to the left-eye frame buffer 173, and the L / R signal at the Lo level is being output. The image data (right-eye image data) transmitted from the VDC 156 is written in the right-eye frame buffer 172. Then, the left-eye image data written in the left-eye frame buffer 173 and the right-eye image data written in the right-eye frame buffer 172 are read for each scanning line, and the stereoscopic frame buffer is read out. Write to 174.

  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 voltages 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 composite conversion device 170, and the liquid crystal display panel 804. Display a composite image for stereoscopic viewing.

  The backlight driver 182 changes the brightness ratio of the liquid crystal display panel 804 by changing 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.

  FIG. 4 is an explanatory diagram showing the configuration of the variable display device 8, and 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 by using a point light source such as a white light emitting diode (LED) side by side or a line light source such as a cold cathode tube arranged horizontally. The polarizing filter 811 is set so that the polarization directions of light transmitted through the left region 811b and the right region 811a are different (for example, the polarization directions of light transmitted through the left region 811b and the right region 811a are shifted by 90 degrees). Yes. The Fresnel lens 812 has a lens surface having concentric irregularities on one side surface.

  The light emitted from the light emitting element 810 is transmitted only by the polarization filter 811 in a certain polarization direction. That is, of the light emitted from the light emitting element 810, the light passing through the left region 811b of the polarizing filter 811 and the light passing through the right region 811a are irradiated to the Fresnel lens 812 as polarized light having different polarization directions. . As will be described later, light that has passed through the left region 811b of the polarizing filter 811 reaches the right eye of the observer, and light that has passed through the right region 811a reaches the left eye of the viewer.

  In addition, even if it does not use a light emitting element and a polarizing filter, what is necessary is just to comprise so that the light of a different polarization direction may be irradiated from a different position, for example, providing two light emitting elements which generate the light of a different polarization direction, and differing You may comprise so that the light of a polarization direction may be irradiated to the Fresnel lens 812 from a different position.

  The light transmitted through the polarizing filter 811 is irradiated to the Fresnel lens 812. The Fresnel lens 812 functions as a convex lens, and the Fresnel lens 812 refracts and condenses light emitted so as to diffuse from the light emitting element 810 to form a substantially parallel light beam. The parallel light beam thus formed passes through the fine retardation plate 802 and reaches the liquid crystal display panel 804. Note that the refracted and converged light beam is not limited to parallel light as long as light from the left and right light sources reaches the left and right eyes of the viewer (player).

  At this time, the light transmitted through the fine retardation plate 802 reaches the liquid crystal panel 804 without spreading in the vertical direction. That is, light transmitted through a specific region of the fine retardation plate 802 is transmitted through a specific display unit portion of the liquid crystal display panel 804.

  Of the light irradiated on the liquid crystal display panel 804, the light that has passed through the right region 811 a of the polarizing filter 811 and the light that has passed through the left region 811 b are at different angles with respect to the optical axis of the Fresnel lens 812. 812, condensed by the Fresnel lens 812, and emitted toward the liquid crystal display panel 804 through different left and right paths.

  The liquid crystal display panel 804 has a liquid crystal that is twisted and aligned at a predetermined angle (for example, 90 degrees) between two transparent plates (for example, glass plates). It is composed. The light passing through the liquid crystal display panel in a state where no voltage is applied to the liquid crystal has its polarization direction twisted 90 degrees. On the other hand, in a state where a voltage is applied to the liquid crystal, the twist of the liquid crystal can be solved, so that incident light is emitted without changing its polarization direction.

  A fine retardation plate 802 and a polarizing plate 803 (second polarizing plate) are disposed on the light source 801 side of the liquid crystal display panel 804, and a polarizing plate 805 (first polarizing plate) is disposed on the viewer side. ing.

  In the fine phase difference plate 802, regions for changing the phase of transmitted light are repeatedly arranged at fine intervals. Specifically, a region 802a in which a half-wave plate 821 having a fine width is provided on a light-transmitting substrate and a half interval equal to the width of the half-wave plate 821 are ½. The region 802b where the wave plate 821 is not provided is repeatedly provided at a fine interval. In other words, the region 802 a that changes the phase of light transmitted by the provided half-wave plate and the region 802 b that does not change the phase of light transmitted because the half-wave plate 821 is not provided are finely spaced. It is provided repeatedly. The half-wave plate 821 functions as a phase difference plate that changes the phase of transmitted light.

  The half-wave plate 821 is disposed so that its optical axis is inclined 45 degrees with respect to the polarization direction of the light transmitted through the right region 811a of the polarizing filter 811, and the polarization axis of the light transmitted through the right region 811a is rotated by 90 degrees. Then exit. That is, the polarization of the light transmitted through the right region 811a is rotated by 90 degrees so as to be equal to the polarization of the light transmitted through the left region 811b. That is, the region 802 b where the half-wave plate 821 is not provided transmits light having a polarization axis in the same direction as the polarization direction of the polarizing plate 803 that has passed through the left region 811 b. In the region 2 a where the half-wave plate 821 is provided, the light having the polarization axis in the direction orthogonal to the polarization direction of the polarizing plate 803 that passes through the right region 811 a matches the polarization direction of the polarizing plate 803. The light is rotated and emitted.

  The repetitive pitch of the polarization characteristics of the fine retardation plate 802 is substantially the same as the display unit of the liquid crystal display panel 804, and the polarization of light transmitted for each display unit (that is, for each horizontal line in the horizontal direction of the display unit). To be different. Therefore, the polarization characteristics of the fine retardation plate 802 corresponding to the horizontal line (scanning line) of the display unit of the liquid crystal display panel 804 are different, and the direction of the light emitted for each horizontal line is different.

  Alternatively, the repetition of the polarization characteristics of the fine retardation plate 802 is performed by setting the polarization characteristics of the fine retardation plate 802 to a plurality of display units (that is, a plurality of display units) as a pitch that is an integral multiple of the display unit pitch of the liquid crystal display panel 804. It may be set so that the polarization of the light transmitted for each of the plurality of display units differs. In this case, the polarization characteristics of the fine retardation plate are different for each of the plurality of horizontal lines (scanning lines) of the display unit of the liquid crystal display panel 804, and the direction of the light emitted is different for each of the plurality of horizontal lines. Become.

  Thus, since 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 retardation plate 802 is repeated, the liquid crystal display panel transmits through the fine retardation plate 802. The light irradiated to 804 needs to suppress the vertical diffusion.

  That is, the region 802a for changing the phase of the light on the fine retardation plate 802 changes the light transmitted through the right region 811a of the polarizing filter 811 to light having the same polarization direction as the light transmitted through the left region 811b. . The region 802 b of the fine retardation plate 802 that does not change the phase of light transmits the light that has passed through the left region 811 b of the polarizing filter 811 as it is. The light emitted from the fine retardation plate 802 has the same polarization direction as the light transmitted through the left region 811b and enters a polarizing plate 803 provided on the light source side of the liquid crystal display panel 804.

  The polarizing plate 803 functions as a second polarizing plate and has a polarization characteristic of transmitting light having the same polarization direction as the 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 is transmitted through the second polarizing plate 803, and the light transmitted through the right region 811a of the polarizing filter 811 is rotated through the polarization axis by 90 degrees to pass through the second polarizing plate 803. To Penetrate. In addition, the polarizing plate 805 functions as a first polarizing plate and has a polarization characteristic that transmits light in a polarization direction orthogonal to the polarization transmission easy axis of the polarizing plate 803.

  Such a fine retardation plate 802, a polarizing plate 803, and a polarizing plate 805 are bonded to a liquid crystal display panel 804, and the fine retardation plate 802, a polarizing plate 803, a liquid crystal display panel 804, and a polarizing plate 805 are combined to form an image display device. Configure. At this time, in a state where a voltage is applied to the liquid crystal, light transmitted through the polarizing plate 803 is transmitted through the polarizing plate 805. On the other hand, in a state where no voltage is applied to the liquid crystal, the light transmitted through the polarizing plate 803 is emitted from the liquid crystal display panel 804 with the polarization direction twisted by 90 degrees and thus does not pass through the polarizing plate 805.

  The diffuser 806 is attached to the front side (observer side) of the first polarizing plate 805 and functions as a diffusing unit that diffuses light transmitted through the liquid crystal display panel in the vertical direction. Specifically, light transmitted through the liquid crystal display panel is diffused up and down using a lenticular lens in which kamaboko-shaped irregularities are repeatedly provided in the vertical direction.

  In place of the lenticular lens, a mat-like diffusion surface having a stronger diffusion finger property in the vertical direction may be provided. Since light in a state where diffusion in the vertical direction is suppressed is transmitted through the liquid crystal panel 804, the diffuser 806 can improve that the viewing angle becomes narrow as it is.

  FIG. 5 is a plan view showing the optical system of the variable display device 8. Light emitted from the light emitting element 810 as a light source passes through the polarizing filter 811 and spreads radially. More specifically, the light emitted from the light emitting element 810b passes through the left region 811b of the polarizing filter 811 and reaches the Fresnel lens 812, and is condensed by the Fresnel lens 812, and the fine phase difference plate 802 and polarized light. It reaches the plate 803, the liquid crystal display panel 804, and the polarizing plate 805, and these are transmitted substantially vertically (slightly from the left side to the right side) to reach the right eye.

  On the other hand, the light emitted from the light emitting element 810a passes through the right region 811a of the polarizing filter 811 and reaches the Fresnel lens 812, and is condensed by the Fresnel lens 812, and the fine retardation plate 802, the polarizing plate 803, and the liquid crystal. It reaches the display panel 804 and the polarizing plate 805, and these are transmitted substantially vertically (slightly from the right side to the left side) to reach the right eye.

  In this way, the light emitted from the light emitting element 810 and transmitted through the polarizing filter 811 is collected by the Fresnel lens 812 as an optical means, and irradiated to the liquid crystal display panel 804 substantially perpendicularly, so that the light emitting element 810, the polarizing filter 811 and the Fresnel The lens 812 forms a light source 801 that collects light having different polarization planes and irradiates the liquid crystal display panel 804 substantially vertically and through different paths, and emits light transmitted through the liquid crystal display panel 804 through different paths. To reach the left or right eye. That is, the scanning line pitch of the liquid crystal display panel 804 and the repetition pitch of the polarization characteristic change of the fine retardation plate 802 are made equal, and light arriving from different directions is irradiated for each scanning line pitch of the liquid crystal display panel 804, Light is emitted in different directions.

  FIG. 6 is a state transition diagram showing a game flow, and the outline of the game will be described below with reference to this figure.

  First, at the beginning of the game (or before the game is started), the game is waiting for a customer, and a display control command for instructing the display of the customer waiting screen is transmitted from the game control device 100 to the display control device 150 to display a variable display. On the screen of the device 8, a customer waiting screen (moving image or still image) is displayed.

  Then, when a game ball launched into the game area of the game board 6 wins the start opening 16, a predetermined random number is extracted by the game control device 100 based on the winning, and a lottery drawing of the variable display game is performed. A display control command for instructing a variable display is transmitted from the game control device 100 to the display control device 150, and a notice character display is started on the screen of the variable display device 8, or a variable display area in the left, right, and middle of the screen At the same time, variable display of a plurality of symbols (identification information) is started.

  When a predetermined time elapses after the start of the variable display, the variable display is temporarily stopped in the order of, for example, left, right, and middle (for example, the pattern is slightly changed at the stop position). When a state (for example, a state in which the left symbol and the right symbol have a possibility of generating a jackpot combination and can be expected to be a jackpot than usual) occurs, a predetermined reach game is performed. In this reach game, for example, the middle symbol variation display is performed at a very low speed, the variation display is performed at a high speed, or the symbol movement direction during the variation display is reversed. In addition, background display and character display in accordance with the reach game are performed. As will be described in detail later, an image constituted by a plurality of symbols, background display, and character display is referred to as a stereoscopic image in this specification, and each of the symbols, background display, and character display constituting the stereoscopic image is stereoscopically displayed. This is called an object.

  The temporary stop state is a state in which the player can recognize the symbol as a substantially stopped state and the final stop mode is not fixed, and is distinguished from a state in which the final stop mode (result mode) of the symbol is fixed. . In addition, when it is simply set as the stop state, the temporary stop state and the state in which the final stop mode (result mode) is determined are included. As a specific example of the temporary stop state, there is a mode in which a symbol is enlarged / reduced, a symbol color is changed, a symbol shape is changed, in addition to a slight fluctuation at a stop position.

  If the result of the jackpot lottery is a jackpot, the left symbol, the right symbol, and the middle symbol are finally stopped in a predetermined jackpot combination, and a jackpot game (giving a specific game value) is generated.

  When this jackpot game is generated, a special game is performed in which the variable winning device 10 is opened for a predetermined period. This special game is executed with a predetermined number (for example, 10) of game balls to be awarded to the variable winning device 10 or a passage of a predetermined time (for example, 30 seconds) as one unit (one round). A prescribed round (for example, 16 rounds) is repeated on condition that a winning is made to a continuous winning opening (not shown) (detection of a winning ball by the continuous sensor 53). When a jackpot game is generated, a display control command for instructing the display control device 150 to display the jackpot game, such as a jackpot fanfare display, a round number display, a jackpot effect display, and the like is transmitted to the display control device 150. The jackpot game is displayed on the screen of 8 (an image showing that the game is in a special game state).

  At this time, if the jackpot is a specific jackpot (for example, a jackpot with an odd symbol that is a probability variation symbol), it is advantageous for the player in a specific gaming state (for example, a probability variation state or a variation time shortened state) after the jackpot game. A game state) is generated and the probability of the next jackpot occurrence is increased, or the variation display time of the variation display game of the variation display device 8 is shortened based on the winning of the game ball starting hole 16 as will be described later. Is done.

  When the game ball wins the start opening 16 during the variable display game or the big hit game (when the special symbol start memory is generated), the big hit game ends after the variable display game ends (when it is lost) or After that, a new variation display game is repeated based on the special symbol start memory. Further, when the variable display game is finished (when lost), or when the big hit game is finished, if there is no special symbol start memory, the state transits to a customer waiting state (demo display state).

  With reference to FIG. 7, the three-dimensional image displayed on the fluctuation | variation display apparatus 8 is demonstrated. In the present specification, based on the fact that right-eye and left-eye images are displayed on the liquid crystal display panel 804 (image display surface), the inside of the virtual space formed on the back side and the near side of the liquid crystal display panel 804 Each of the constituent elements of the image that appears in (that the player can feel three-dimensionally) is expressed as a “stereoscopic display object”. An image constituted by the stereoscopic display object is expressed as a stereoscopic image. For example, each of the symbols “5”, “7”, and “5” illustrated in FIG. 7A corresponds to a stereoscopic display object, and is configured by the symbols “5”, “7”, and “5”. The entire image corresponds to a stereoscopic image.

  FIG. 7A shows a right design RO called “5”, “7”, “5” based on the image for the right eye and the image for the left eye displayed on the liquid crystal display panel 804 (image display surface). FIG. 7 is a perspective view schematically showing a state in which the middle symbol CO and the left symbol LO are three-dimensionally displayed, showing a state in which a so-called “reach state” is being displayed (corresponding to the variable display state in FIG. 6). Yes. In this state, for example, among the displayed symbols “5”, “7” and “5”, the left symbol LO and the right symbol RO (5 symbols on both sides) constituting the reach are displayed in a temporarily stopped state. The middle symbol CO (seven symbols in the center) is displayed in a variable manner, for example, 5, 6, 7,.

  In FIG. 7A, in the virtual space extending in the direction of the back side and the near side across the liquid crystal display panel 804, the back side of the liquid crystal display panel 804 is viewed from the player facing the liquid crystal display panel 804. Two right symbols RO and left symbol LO of “5” exemplified as a stereoscopic display object appear, and one middle symbol CO of “7” exemplified as a stereoscopic display object appears on the front side of the liquid crystal display panel 804. It shows how it is. In FIG. 7A, the symbol ER indicates the player's right eye, and the symbol EL indicates the left eye.

  Hereinafter, the Z axis, X axis, and Y axis are taken along the front-rear direction, left-right direction, and up-down direction for the player (viewer) facing the liquid crystal display panel 804 (game machine), respectively, and the following explanation is given. Do. In the present specification, directions along the X, Y, and Z axes are referred to as an X direction, a Y direction, and a Z direction, respectively. With reference to the liquid crystal display panel 804 (image display surface), the direction approaching the player is defined as + Z direction, and the opposite direction is defined as −Z direction. Similarly, the direction from left to right toward the player is defined as + X direction, and the opposite direction is defined as -X direction. For convenience, in the display area of the liquid crystal display panel 804, the X-direction position coordinate value of the pixel displayed on the leftmost side from the player is set to zero.

  Regarding the display position of the stereoscopic display object in the Z direction, the display position does not actually change in the Z direction, but the right-eye image and the left-eye image forming the stereoscopic display object are displayed on the liquid crystal display panel 804. On the basis of the amount of parallax displayed on the screen, that is, the relative display position in the X direction of the image for the right eye and the image for the left eye, the appearance position of the stereoscopic image is “ It feels “near (appears on the near side)” or “far (appears on the far side)”. This feeling depends on the player's eye width, physical condition, etc., but for the sake of convenience in this specification, the fact that the stereoscopic display object appears at the position of + Z is “appears on the near side”. And appearing at the position of −Z is expressed as “appearing on the back side”. Moreover, displaying a symbol in this way is expressed as “stereoscopic display”. Furthermore, the three-dimensional display at the positions of + Z and −Z is expressed as “projecting display” and “retracting display”, respectively.

  As for the middle symbol CO displayed in a variably manner, the display content itself changes as described above, and the display position also changes over time. FIG. 7A shows the display state at a certain moment. ing.

  FIG. 7B is a diagram showing a state in which a planar image is displayed on the liquid crystal display panel 804. FIG. 7C and FIG. It is shown in a state projected onto the Z plane.

  FIG. 7C is a diagram illustrating a state in which the middle symbol CO that is variably displayed is three-dimensionally displayed. In FIG. 7C, the left-eye image displayed on the liquid crystal display panel 804 is viewed only by the player's left-eye EL, and the right-eye image is viewed only by the right-eye ER. As a result, the three-dimensional image of the middle symbol CO is fused, and the player feels as if the middle symbol CO is three-dimensionally displayed at the position of + Zf. That is, the middle symbol CO appears at the position of + Zf.

  Similarly, in FIG. 7D, the left eye image is viewed only by the player's left eye EL, the right eye image is viewed only by the right eye ER, and the right symbol RO appears at the position of −Zr. In FIG. 7D, only the state in which the right symbol RO is three-dimensionally displayed is shown for ease of understanding, and the left symbol LO is not shown.

  Here, when attention is paid to the X-direction display positions of the right-eye image and the left-eye image, the display positions of the right-eye image and the left image are the same in FIG. 7B. Similarly, in FIG. 7C, the display position of the left eye image is on the right side (upper side in FIG. 7C) of the display position of the right eye image. On the other hand, in FIG. 7D, the X direction display position of the right eye image is on the right side of the X direction display position of the left eye image.

  LR is defined as “pixel difference δ”, where L is the display position in the X direction of the left-eye image and R is the display position in the X direction of the right-eye image. The display position in the X direction can be expressed, for example, with the display position of the leftmost pixel of the liquid crystal display panel 804 as 0 and the number of pixels as a unit. Alternatively, it is also possible to express the actual size by multiplying the number of pixels by the pixel arrangement pitch. When the pixel difference is δ1 (> 0) as shown in FIG. 7C, a stereoscopic image is displayed at the position on the + Z side, and the pixel difference is δ2 (as shown in FIG. 7D). When <0), an image is displayed at a position on the −Z side. Further, as the absolute value of the pixel difference is larger, a stereoscopic display is performed at a position further away from the liquid crystal display panel 804 (image display surface). When the pixel difference is 0, as shown in FIG. It will be displayed in plane.

  When displaying a right-eye image and a left-eye image on the liquid crystal display panel 804 to display a stereoscopic image, the display position in the Z direction can be managed using the pixel difference described above. When obtaining the pixel difference, for example, the centroid of the symbol to be displayed, the coordinate data indicating the display position of the sprite data of the display object, and the leftmost position regarding the display positions of the images for the left eye and the right eye It is possible to use a pixel that is convenient for quantifying the display position, such as these pixels. The pixel difference described above is the amount of parallax between the right-eye image and the left-eye image that form the stereoscopic display object.

  In the example described above with reference to FIG. 7, the pixel difference is used as the parallax amount between the right-eye image and the left-eye image for forming the stereoscopic image, and the appearance position in the Z direction of the stereoscopic display object is managed. . In a narrow sense, the amount of parallax means the difference between the angle (convergence angle) formed by the observer's line of sight during stereoscopic image observation and the convergence angle when the line of sight intersects on the image display surface (image presenting surface). In this embodiment, in order to manage the visual burden, it is quantified in relation to the pixel difference (the shift amount in pixels on the image display surface of the stereoscopic image display device between the left-eye image and the right-eye image). The converted value is treated as the amount of parallax. In this embodiment, the display condition (or the image presentation surface size and the viewing distance as the observation condition) is set in advance, and the parallax amount is quantified using the pixel difference. One feature is that the visual burden is quantified and handled as the amount of parallax. Note that, as another method for quantifying the amount of parallax, an example in which the Z value in the virtual space is used when managing the appearance position of the stereoscopic display object in the Z direction will be described below.

  In so-called 3D graphics, a model corresponding to an object (stereoscopic display object) to be displayed is placed at a predetermined position in a three-dimensional virtual space and rendered to display on a two-dimensional display. Two-dimensional image data is obtained. This virtual space can be replaced with a stereoscopic display space defined by the X, Y, and Z axes in FIG. That is, the Z value in the virtual space corresponds to an arrangement position in the Z direction when the model is arranged in a virtual space that can be defined as an XYZ space. As a method for defining the position of the model arranged in the three-dimensional space, the coordinates of the position of the reference point determined for each model may be specified. Alternatively, the coordinates of the point on the forefront side in the model may be determined as the position coordinates of the model. Furthermore, a representative polygon may be defined among a plurality of polygons forming the model, a representative vertex may be defined from a plurality of vertices defining the representative polygon, and the coordinates of the representative vertex may be used as the position coordinates of the model.

  FIG. 8 shows an example in which a model corresponding to a stereoscopic image to be displayed is placed in a virtual space and rendered, and in FIG. 7 (a), as in FIGS. 7 (b) to 7 (d). A state of projection onto the XZ plane is shown. 8A shows a state in which the planar image corresponds to the display of the planar image on the liquid crystal display panel 804 (image display surface), and FIG. 8B shows the position where the stereoscopic image is + Zf. FIG. 8C shows a state corresponding to the display of the stereoscopic image at the position of −Zr.

  FIG. 8 shows an example in which the distance from the player's eye to the liquid crystal panel 804 (image display surface), that is, the viewing distance is 500 mm, and the player's eye width is 65 mm. FIG. 8A shows an example in which a model is arranged and rendered at a position 500 mm away from the player's eyes. In this case, the shift amount of the X-direction display position of the right-eye image and the left-eye image is zero. Therefore, the actually displayed image is displayed on the plane where Z = 0.

  FIG. 8B shows an example in which a model is placed and rendered at a position (500-Zf) (mm) away from the player's eyes. In this case, the shift amount of the X-direction display position of the right eye image and the left eye image is δ1 (mm). When the display pixel pitch of the liquid crystal display panel 804 is p (mm), the pixel difference between the X-direction display positions of the right-eye image and the left-eye image is δ1 / p. Similarly, FIG. 8C illustrates an example in which a model is arranged and rendered at a position (500 + Zr) (mm) away from the player's eye, and the right-eye image and the left-eye image are in the X direction. The amount of deviation of the display position is δ2 (mm). At this time, the pixel difference is δ2 / p.

Next, an example of managing the Z-direction display position of a stereoscopic image using the convergence angle will be described with reference to FIG. 9 also shows an example in which the viewing distance is assumed to be 500 mm and the eye width of the player is 65 mm as in the example shown in FIG. FIG. 9A shows an example in which a planar image is displayed on a liquid crystal display panel 804 (image display surface) that is 500 mm away from the player's eyes. The convergence angle θ0 = 2 * tan ⁻¹ {(65/2) / 500} can be calculated from the viewing distance and the eye width. In this example, the pixel difference is 0 when the convergence angle is θ0.

FIG. 9B shows an example in which a stereoscopic image is displayed at a position (500-Zf) mm away from the player's eyes. At this time, the convergence angle is calculated by θf = 2 * tan ⁻¹ {(65/2) / (500−Zf)}. When a stereoscopic image is displayed on the near side (+ Z side) for the player, θf is larger than θ0. FIG. 9C shows an example in which a stereoscopic image is displayed at a position (500 + Zr) mm away from the player's eyes, and the convergence angle at this time is θr = 2 * tan ⁻¹ {(65/2 ) / (500 + Zr)}. θr is smaller than θ0. As described above, the Z-direction display position of the stereoscopic image can be managed by the convergence angle. Then, the display position in the Z direction of the stereoscopically displayed image can be managed by using the difference or ratio between the convergence angle θ when displaying the stereoscopic image at a predetermined Z direction position and the above θ0. it can. It is also possible to obtain a pixel difference from the calculated convergence angle as follows. That is, when the convergence angle is θ, the shift amount δ (mm) of the X-direction display position of the right eye image and the left eye image can be calculated from δ = 2 * 500 * tan (θ / 2) −65. The pixel difference at this time is δ / p (p: display pixel pitch of the liquid crystal display panel 804).

  By the method described above with reference to FIGS. 7 to 9, the display position in the Z direction (front and rear direction for the player) of the stereoscopically displayed image can be quantified and managed. At this time, any value among the pixel difference, the Z value, and the convergence angle can be used as the parallax amount. Further, these values may be arithmetically processed (for example, converted to integers, correction of upper and lower limit values, 10-level evaluation of 5 levels each for positive and negative values, etc.), converted into easy-to-handle numerical values, and used as a parallax amount. In the following description, an example of managing the stereoscopic effect when displaying a stereoscopic image using the amount of parallax between the right-eye image and the left-eye image forming each of a plurality of stereoscopic display objects constituting the stereoscopic image. As will be described, any parameter that can specify the appearance position of the stereoscopic display object as described above can be used.

  A method of managing the stereoscopic effect when displaying a stereoscopic image will be described with reference to FIGS. When performing stereoscopic display by the so-called binocular parallax method, the time that the player (the viewer of the stereoscopic image) continues to view the stereoscopic image and the degree of eye strain felt by the player are closely related. When a stereoscopic image that is projected and displayed continues to be viewed, the fatigue accumulation rate tends to increase. On the other hand, in order to obtain an interesting display effect, it is important to project a stereoscopic image. According to the present invention, it is possible to express a stereoscopic image rich in interest, and it is possible to suppress accumulation of eye strain when continuing to watch.

  10 to 16 are flowcharts for schematically explaining the contents of the variable display processing program executed by the CPU 151. In this variable display processing program, the game control device 100 (FIG. 2) detects that a game ball has been won at the start port 16 (FIG. 1), and the display control command is sent from the game control device 100 to the display control device 150. Is executed in response to being transmitted.

  FIG. 10 is a flowchart showing the contents of a series of variable display processing performed by the CPU 151. The process shown in FIG. 10 is performed by the CPU 151 executing a program stored in the ROM 152, for example. In FIG. 10, the numbers 11, 12, 13, and 15 in the circles indicate that the processes to which these numbers are assigned are executed by the CPU 151 according to the flowcharts of FIGS. 11, 12, 13, and 15. For example, the process of the part to which the circle 11 is attached indicates that it is processed by the CPU 151 according to the flowchart shown in FIG.

  With reference to FIG. 10, the outline of the variable display process performed by CPU151 is demonstrated. The CPU 151 inputs a display control command from the game control device 100 in S1000, and determines in S1002 whether or not the projecting display amount management mode is entered. Whether to enter the protruding display amount management mode depends on the gaming state of the gaming machine 1. For example, whether to enter or exit from this mode is determined by the progress of the game, the elapsed time since the player started the game, the player's selection operation, and the like.

  Specifically, a gaming state suitable for relaxing a player's eyes when it is considered that the player has been playing for a long time after the player has started playing. It is desirable to enter the protruding display amount management mode in a game state that is advantageous to the player such as a big hit state, probability fluctuation, time reduction, etc., in which the player can relax mentally and enjoy the game progress. .

  On the other hand, during a predetermined time after the player starts the game, or in a so-called reach state (a state in which the player can expect a big hit), priority is given to the enhancement of interest and the escape from the protruding display management mode.

  Further, individual accumulation, age difference, physical condition, environment, and the like also act on the accumulation degree of eye strain. Therefore, the mode may be switched by the player's selection operation so that the player's judgment is respected.

  Note that the transition condition to the protruding display amount management mode is not limited to the specific example described above, and can be freely set in consideration of game characteristics and display contents.

  The protruding display management mode is a state in which display control for changing the definition of the display object is performed in a display state in which the fatigue alleviation display control process or the viewing object guidance display control process is performed.

  If the determination in S1002 is negative, that is, if it is not the protruding display amount management mode, the process proceeds to S1018, where the normal display control process is performed, and the process returns to S1000 again.

  If the determination in S1002 is affirmative, that is, in the protruding display amount management mode, it is determined in S1004 whether the protruding display restriction flag is 1, that is, whether or not the protruding display is restricted. If the determination in S1004 is affirmed, a fatigue relief display control process, that is, a display control process capable of relieving a player's eye strain is performed in S1006. On the other hand, if the determination in S1004 is negative, a viewing object guidance display control process is performed in S1008. The fatigue relaxation display control process and the viewing object guidance display control process will be described in detail later.

  In subsequent S1010, the CPU 151 performs a specific stereoscopic display object among the plurality of stereoscopic display objects constituting the stereoscopic image, that is, as a result of the above-described fatigue alleviation display control processing and viewing target guidance display control processing being performed. The amount of parallax of the stereoscopic display object that is the object of gaze is calculated, and the process of integrating (accumulating) the amount of parallax is performed. The value obtained by this processing is referred to as “accumulated parallax amount” in this specification.

  In S1012, the cumulative amount of parallax calculated in S1010 is compared with a predetermined allowable value. When it is determined that the accumulated amount of parallax exceeds the allowable value, that is, the appearance position of the stereoscopic display object constituting the displayed stereoscopic image is closer to the player than the image display surface of the stereoscopic image display device. If it is determined that it is unevenly distributed, the process proceeds to S1014. If this determination is negative, the process proceeds to S1016. The processing in S1012 will be described. When stereoscopic display is performed by the binocular parallax method, as described above, the time that the player continues to view the stereoscopic image and the degree of eye strain felt by the player are closely related. When the stereoscopic image displayed in a protruding manner is continuously viewed, the fatigue accumulation rate tends to increase. Therefore, when it is determined that the accumulated amount of parallax exceeds the allowable value and the appearance position of the stereoscopic display object is unevenly distributed on the near side of the player from the image display surface of the stereoscopic image display device, It is expected that the player's eye fatigue has also accumulated. In such a case, the CPU 151 sets the protrusion display restriction flag to 1 in S1014. While the protrusion display restriction flag is set to 1, the process of S1006 is performed, and the player's viewing target is the back side (the far side) from the image display surface of the stereoscopic image display device for the player. The stereoscopic display is performed so as to be guided by the stereoscopic display object appearing in By viewing the stereoscopic display object that appears on the back side of the image display surface, the player can relieve the stress felt by the player and promote recovery of eye strain.

  If it is determined in S1012 that the accumulated parallax amount does not exceed the allowable value, the CPU 151 sets the protruding display restriction flag to 0 in S1016 and returns to S1000. If the accumulated amount of parallax once exceeds the allowable value, it is expected that the player's eyes are tired, so that sufficient rest must be given. Therefore, in S1012, it is desirable to continue to set the protrusion display limit flag to 1 for a certain period of time after the accumulated amount of parallax exceeds the allowable value. Alternatively, after the cumulative parallax amount exceeds the allowable value (upper limit value), the protruding display limit flag is set to 1 until the protruding display limit is applied and the cumulative parallax amount decreases and falls below a predetermined lower limit value. It may be maintained.

  FIG. 11 is a flowchart for explaining the procedure of the normal display control process of S1018 in FIG. In S1100, the CPU 151 develops a display control procedure based on the display control command input in S1000 (FIG. 10). Specifically, a predetermined variation display control procedure is acquired from a plurality of variation display control procedures stored in the ROM 152. This variable display control procedure is data that defines the contents when a moving image is displayed on the variable display device 8 (liquid crystal display panel 804) over a predetermined time. A stereoscopic display object in the XYZ space is based on this variable display control procedure. The movement route and the contents of display symbols (sprites) are controlled.

  In S1104, the CPU 151 outputs a display control procedure (control data) to the VDC 156 by data transfer processing described later with reference to FIG. As a result, the VDC 156 performs a normal display control process for generating a display image from the display control procedure and the sprite data in the font ROM 157. Here, the processing of the image data that changes the sharpness of the image is not performed for the stereoscopic image display instructed by the developed display control procedure.

  FIG. 12 is a flowchart for explaining the procedure of the fatigue relaxation display control process in S1006 in FIG. In S1200, the CPU 151 expands the display control means based on the display control command input in S1000 (FIG. 10), similarly to the processing in S1100. In S1202, the stereoscopic display object displayed stereoscopically in each frame image (the left-eye frame image and the right-eye frame image) is extracted based on the Z value parameter set in the sprite data constituting the stereoscopic display object. .

  Note that the 3D display object to be extracted here may be all of the 3D display objects to be displayed, or only a predetermined 3D display object may be the extraction target. In this case, it is possible to avoid selecting a stereoscopic display object that is expected to have a low gaze value (a low possibility of being watched) for the player as a standard stereoscopic display object. In subsequent S1204, the CPU 151 selects a stereoscopic display object that is stereoscopically displayed (appears) on the farthest (back) side of the player from the stereoscopic display objects extracted in S1202 (in this specification, This is referred to as “the farthest 3D display object”).

  It is desirable for the player to be displayed on the far side (although it is limited to a range in which stereoscopic viewing is possible), but in the case of far vision, a suitable stereoscopic display is provided according to the importance of the display content. An object (for example, a design rather than a background image or a notification image of a progress notice) may be selected, and need not be limited to selecting the farthest object.

  In S1206, clipping processing is performed. This clipping process is a process of correcting the display position in the Z direction of the farthest stereoscopic display object selected in S1204 as necessary. That is, when the appearance position of the farthest stereoscopic display object is on the side closer to the player than the image display surface, the appearance position of the farthest stereoscopic display object is corrected.

  The processing example in S1206 will be described in more detail. When the parallax amount of the farthest stereoscopic display object is a value that appears on the side closer to the player than the image display surface, the CPU 151 The sign may be reversed so that it appears on the side farther from the image display surface, or it can be set to zero uniformly.

  As another example of processing in S1206, a uniform value may be subtracted from the parallax amount of the farthest stereoscopic display object. In this case, after processing, it may still appear on the side closer to the image display surface, but considering the probability density distribution of the appearance position of the farthest stereoscopic display object in a predetermined time span, the above-mentioned By performing the process, the appearance position of the farthest stereoscopic display object is shifted away from the player, so that the cumulative amount of parallax can also be reduced and contribute to the recovery of the player's eye fatigue. From the same viewpoint, when the parallax amount is such that the farthest stereoscopic display object appears on the side closer to the image display surface, a positive value smaller than 1 with respect to the parallax amount (eg, 0.3, 0) .5) uniformly or by multiplying a positive coefficient larger than 1 uniformly when the farthest stereoscopic display object has a parallax amount that appears on the far side of the image display surface. It is also possible to retreat the appearance position of the far stereoscopic display object with a tendency (to make the appearance position move away for the player).

In step S1208, the CPU 151 performs a blurring process for the stereoscopic display object. The blurring process in S1208 is a process for reducing the display definition of the other stereoscopic display object compared to the display definition of the farthest stereoscopic display object described above among the plurality of stereoscopic display objects constituting the stereoscopic image. It is. This blurring process will be described later with reference to FIG.
Note that the stereoscopic display object to be blurred here is desirably the entire display content, but may be limited to the extraction target of the stereoscopic display object extraction processing in S1202.

  In S1210, the CPU 151 outputs a display control procedure to the VDC 156 by data transfer processing described later with reference to FIG. As a result, among the plurality of stereoscopic display objects constituting the displayed stereoscopic image, the display definition of the other stereoscopic display object is displayed lower than that of the farthest stereoscopic display object. As a result, the player's viewing target is guided to the farthest stereoscopic display object, and the player's visual burden (fatigue, tension, or uncomfortable feeling caused by the player viewing the stereoscopic image) is reduced, and the time It is possible to reduce the degree of fatigue accumulation associated with continuing to view stereoscopic images. In the above description, the example in which the display definition of the other stereoscopic display object is reduced compared to the display definition of the farthest stereoscopic display object has been described. If there are multiple 3D display objects that are felt to be displayed in 3D on the far side, other 3D display objects can be compared to the display definition of any (one, some, or all) 3D display objects. The display object may be displayed with a lower display definition.

  FIG. 13 is a flowchart for explaining the procedure of the viewing object guidance display control process of S1008 in FIG. In S1300, the CPU 151 expands the display control means based on the display control command input in S1000 (FIG. 10), similar to the processing in S1100 and S1200. In S1302, a stereoscopic display object to be stereoscopically displayed is extracted from each frame image data. In subsequent S1304, the CPU 151 selects a 3D display object to be guided as a player's viewing target from the 3D display objects extracted in S1302 (this is referred to as “viewing target guiding object” in this specification). Pick out.

  In step S1306, the CPU 151 performs a blurring process for the stereoscopic display object. The blurring process in S1306 is performed by comparing other stereoscopic display objects (in this specification, “non-display” in comparison with the display clarity of the above-described viewing target guiding object among the plurality of stereoscopic display objects constituting the stereoscopic image. This is a process for reducing the display clarity of the “guide object”. This blurring process will be described later with reference to FIG.

    In S1308, the CPU 151 outputs a display control procedure to the VDC 156 by data transfer processing described later with reference to FIG. As a result, among the plurality of stereoscopic display objects constituting the displayed stereoscopic image, the display clarity of the other non-guidance objects is displayed lower than that of the viewing target guidance object. As a result, the player's viewing target is guided to the viewing target guiding object. The display position of the viewing target guiding object in the Z direction changes with time. The player continues watching while following the change in the Z-direction display position of the viewing object guiding object while continuing the game. As is clear from the above description, the accumulated amount of eye strain (cumulative parallax amount) can be suitably estimated by the viewing object guidance object in the viewing object guidance display control process described with reference to FIG. Thus, in the fatigue alleviating display control process executed when the accumulated amount of parallax described with reference to FIG. 12 exceeds a predetermined value, the stereoscopic display object displayed on the far side from the player is selected as the viewing guidance object. The eye strain of the player is healed. Note that the visual guidance object selected and processed in the fatigue alleviation display control process and the visual object guidance display control process is an object that protrudes or is displayed backward depending on the situation at that time. Or an object displayed on a plane.

  FIG. 14 is a flowchart for explaining data transfer processing in S1104 in FIG. 11, S1210 in FIG. 12, and S1308 in FIG. In step S1400, the CPU 151 acquires information related to the display control procedure. The information related to the display control procedure is information given to each frame image data, such as which sprite is moved in which direction and how the background is displayed. In step S1402, the CPU 151 outputs the display control procedure to the VDC 156 (FIG. 2) (transfers from the RAM 153 to the VDC 156), and then returns. The VDC 156 generates an image according to the received display control procedure, and then outputs the image to the composition conversion device 170.

  FIG. 15 is a flowchart for explaining the procedure of the cumulative parallax amount calculation process in S1010 of FIG. In S1500, the CPU 151 extracts a stereoscopic display object that is a target for calculating the amount of parallax, that is, a viewing target guiding object, from a plurality of stereoscopic display objects constituting the stereoscopic image. In subsequent S1502, the parallax amount of the stereoscopic display object is calculated. In S1504, the CPU 151 updates the accumulated amount of parallax, which is the accumulated value of the amount of parallax calculated through the processing in S1500 and S1502, and returns.

  FIG. 16 is a flowchart for explaining the procedure of the stereoscopic display object blurring process in S1208 of FIG. 12 and the non-guided object blurring process in S1306 of FIG. In S1600, the CPU 151 acquires the parallax amount of the reference stereoscopic display object. In this reference stereoscopic display object, the farthest stereoscopic display object corresponds to the reference stereoscopic display object during the processing of S1208 in FIG. 12, and the viewing target guiding object corresponds to the reference stereoscopic display object during the processing of S1306 in FIG.

  In S <b> 1602, the CPU 151 acquires the parallax amount of another stereoscopic display object (non-guided object) that is a display target with a stereoscopic display object other than the above-described reference stereoscopic display object. In subsequent S1604, the absolute value of the difference between the parallax amounts acquired in S1600 and S1602 is obtained, and the blurring amount is obtained from the absolute value. FIG. 18 illustrates the positional relationship between the viewing object guiding object, the non-guidance object, and the player's eyes. As described above, the parallax amount Z1 of the viewing target guided object is acquired in S1600, and the parallax amount Z2 of the non-guided object is acquired in S1602, and the absolute value (= D) of these differences is calculated in S1604. Furthermore, based on the absolute value D of the difference between the parallax amounts Z1 and Z2, the blurring amount of the non-guide object is obtained in S1604. As a method of obtaining the blur amount, a look-up table (LUT) conceptually showing its contents in FIG. 19 may be recorded in the ROM 152, and the blur amount may be obtained from the above D. In FIG. 19, the graph that determines the characteristics of the LUT may be a straight line, a curve, or a stepped shape. As another example of obtaining the blur amount, a calculation formula prepared in advance may be used. In subsequent S1606, the CPU 151 performs blurring processing, which will be described later, on the data of the non-guided object described above based on the blurring amount obtained in S1604, thereby reducing the display clarity of the non-guided object. In S1608, it is determined whether the above-described processing from S1602 to S1606 has been performed for all non-inductive objects to be displayed. If the determination is negative, the processing from S1602 to S1606 is repeated.

  During the processing described above, the blurring process of S1606, that is, the process of lowering the display clarity of the non-guided object compared to the display visibility of the viewing target guided object will be described. An example of the blur processing is mosaic processing. As an example, two-dimensionally arranged image data of a stereoscopic display object whose display definition is to be reduced is divided by, for example, a grid corresponding to 10 × 10 pixels, and an average value of the image data included in each grid is calculated. There is a method of calculating and replacing the calculated average value with all image data in the grid. When processing is performed in this way, the image data of 10 × 10 pixels in one grid all have the same value. As a result, the resolution of the image is lowered and the display definition is lowered. At this time, the amount of reduction in display definition can be increased by increasing the size of the grid. FIG. 17 shows an example of a normal display state in which all displayed stereoscopic display objects are clearly displayed. FIGS. 21, 22, and 23 show non-induction objects that are not objects of visual guidance. An example is shown in which the display sharpness of is reduced by mosaic processing. As other methods for reducing the display sharpness, processing such as blurring, Gaussian blurring, brightness change, color tone or transparency change by alpha blending, noise addition, etc. may be used. A plurality of may be combined. As an example of the processing for reducing the display sharpness, those subjected to processing by blurring, Gaussian blurring, and brightness change are shown in FIGS. 20 (a), 20 (b), and 20 (c). In each of these FIGS. 20A, 20B, and 20C, the amount of decrease in display definition increases from left to right.

  By the way, when the blurring process illustrated in FIGS. 20A and 20B is performed, the display area occupied by the character forming one stereoscopic display object is expanded after the blurring process. In the example shown in FIG. 20A, since the image is hung along the horizontal direction in the figure, the display area in the horizontal direction is expanded. In the example shown in FIG. 20B, since the image data is Gaussian diffused in the two-dimensional direction along the top / bottom / left / right of the figure, the display area expands in the top / bottom / left / right direction. When a certain character is displayed by sprite drawing, a sprite display area is set for the character. For example, it is assumed that a sprite display area as shown by a square frame in the leftmost diagram of FIG. When the display area of the image is expanded by the blurring process, as shown in the center and the right side of FIG. 20A, the sprite display area is expanded in advance according to the degree of the blurring process, so that the character after the blurring process is performed. The display does not protrude from the sprite display area. On the other hand, as shown in FIG. 20 (d), if blurring is performed without changing the sprite display area, a part of the character is lost as shown in the center and right side of FIG. 20 (d). There is also a possibility that the aesthetic appearance of the displayed stereoscopic image may be impaired, or the sense of reality may be reduced. However, when the display size of the stereoscopic display object is relatively small or the degree of blurring is large, the lack of the character is less noticeable. In such cases, blurring without expanding the sprite display area reduces the image display processing load and consumes the work area on the memory while maintaining the quality of the displayed stereoscopic image. It becomes possible to suppress.

  In the above, the example in which the blurring process is applied to the data of the right-eye image and the left-eye image forming the stereoscopic display object based on the previously determined blur amount parameter has been described. Instead, a plurality of sets of image display data for obtaining different display sharpness corresponding to one stereoscopic display object are stored in the font ROM 157 or the like, and appropriately set based on the absolute value of the difference in parallax described above. The data may be selected and displayed.

  The characteristic part of the above-described variable display processing performed by the CPU 151 will be further described with reference to FIGS. In FIG. 21, the stereoscopic display object 217 that is projected and displayed is a viewing object guidance object, and the other stereoscopic display objects 216 and 218 are non-guidance objects. This display state appears when the processing of S1008 in FIG. 10 is performed. The absolute value of the difference between the parallax amount of the viewing target guiding object 217 and the parallax amount of the non-guidance object 216 is greater than the absolute value of the difference between the parallax amount of the viewing target guiding object 217 and the non-guidance object 218. large. For this reason, the blurring amount of the non-guidance object 216 (the amount of decrease in display clarity) is larger than that of the non-guidance object 218. Even if the player tries to adjust the focus on the stereoscopic display object having a large blurring amount, a clear image cannot be obtained. In addition, as the absolute value of the difference between the parallax amount (Z direction appearance position) of the non-guide object with respect to the parallax amount (Z direction appearance position) of the viewing target guiding object increases, the display clarity of the image increases. It is possible to naturally guide the player's line of sight to the viewing object guiding object 217. Here, the relationship between the processing shown in FIG. 15 and the display state shown in FIG. 21 will be described. The viewing target guiding object 217 becomes a calculation target stereoscopic display object extracted in S1500 of FIG. The amount of parallax calculated in step 1 corresponds to the protruding display state.

  In FIG. 22, the stereoscopic display object 228 displayed on the liquid crystal display panel 804 (image display surface) is a viewing object guidance object, and the other stereoscopic display objects 226 and 227 are non-guidance objects. This display state also appears when the processing of S1008 in FIG. 10 is performed, and is a state in which the stereoscopic display object 228 displayed on the image display surface is guided as a player's viewing target. In this example, the absolute value of the difference between the parallax amount of the viewing target guiding object 228 and the parallax amount of the non-guidance object 226 is the difference between the parallax amount of the viewing target guiding object 228 and the parallax amount of the non-guidance object 227. It is almost equal to the absolute value. For this reason, the blur amount of the non-guide object 227 and the blur amount of the non-guide object 226 are substantially equal. In the display state shown in FIG. 22, the viewing target guiding object 228 becomes a calculation target stereoscopic display object extracted in S1500 of FIG. 15, and the parallax amount calculated in S1502 corresponds to the flat display state. .

  In FIG. 23, the stereoscopic display object 236 displayed backward is a viewing object guidance object, and the other stereoscopic display objects 237 and 238 are non-guidance objects. Although this display state may appear even when the process of S1008 in FIG. 10 is performed, the frequency of appearance increases particularly when the process of S1006 in FIG. 10 is performed. The absolute value of the difference between the amount of parallax of the viewing target guiding object 236 and the amount of parallax of the non-guided object 237 is greater than the absolute value of the difference between the amount of parallax of the viewing target guiding object 236 and the amount of parallax of the non-guided object 238. large. For this reason, the blurring amount of the non-guidance object 237 is larger than that of the non-guidance object 238, and the player's line of sight can be naturally guided to the viewing object guidance object 236. In the display state shown in FIG. 23, the viewing target guiding object 236 is a calculation target stereoscopic display object extracted in S1500 of FIG. 15, and the parallax amount calculated in S1502 corresponds to the backward display state. .

  FIG. 24 shows the display state (parallax amount) of the viewing object guiding object and the elapsed time of the accumulated parallax amount calculated in S1010 when it is determined in S1002 shown in FIG. 10 that the current state is the protruding display amount management mode. It is a figure which shows the transition accompanying.

  In FIG. 24, among the 3D display objects constituting the 3D image displayed on the liquid crystal display panel 804 of the variable display device 8, the accumulated value of the parallax amount of the viewing target guiding object, that is, the accumulated parallax amount is managed. In this example, it is determined whether or not the upper limit value (allowable value) is exceeded, and the appearance position of the viewing target guiding object is controlled based on the determination result. The elapsed time from the start of the protruding display management mode is plotted on the horizontal axis, and the parallax amount of the viewing target guiding object and its accumulated value are plotted on the vertical axis. In this graph, the parallax amount of the viewing object guiding object calculated at a predetermined time interval in S1502 of FIG. 15 is shown as a bar graph, and the accumulated parallax amount calculated in S1504 of FIG. 15 is a line graph. It is shown. This time interval can be made to coincide with, for example, the display update cycle of the image. For example, when the displayed image is non-interlaced scan, it may be 1/60 second, and when it is interlaced scan, it may be 1/30 second. Alternatively, regardless of these image display update cycles, 100 msec. It is possible to set an appropriate time interval such as every other second. Further, the time interval does not necessarily have to be equal.

  In the graph of FIG. 24, in the zone A, the viewing object guidance object is continuously projected and displayed, and thus the accumulated amount of parallax increases monotonously. In zone B, the amount of accumulated parallax is reduced due to the backward display. In the zone C, since the protruding display is continuously performed again, the accumulated parallax amount starts to increase, and the accumulated parallax amount exceeds the allowable value at the boundary between the zone C and the zone D. In response to this, the protrusion display restriction flag is set to 1 in S1014 in FIG. 10, the fatigue alleviation display is performed in S1006, and the viewing object guiding object is switched to the backward display. That is, it is determined that the player's eyes are tired as the accumulated parallax amount exceeds the allowable value, and the viewing target guiding object is displayed in a backward tendency display state to relieve the player's eye tension. . Along with this, the cumulative parallax amount continues to decrease, and the cumulative parallax amount at the boundary between the zone D and the zone E becomes less than the allowable value. However, as described above, since a certain amount of time is required to recover the player's eye fatigue, it is determined in S1012 that the protrusion display should be restricted, and the protrusion display restriction state is maintained.

  At the boundary between zone E and zone F, the accumulated parallax amount reaches the lower limit. In response to the cumulative parallax amount reaching the lower limit, it is determined in S1012 that the protruding display is not limited, and the process branches to S1016 and the protruding display limit flag is reset to zero. In the example of FIG. 24, the backward display continues after the cumulative parallax amount reaches the lower limit and the protruding display restriction state is released at the boundary between the zone E and the zone F. The amount is not negative, for example, and is kept at the lower limit. Thereafter, the protruding display is performed again, and in the zone G, the accumulated parallax amount starts to increase again.

  As described above, the accumulated parallax amount is managed, and by controlling the appearance position of the stereoscopic display object based on the comparison result between the accumulated parallax amount and a preset allowable value, the player can view the stereoscopic image for a long time. Even if it keeps watching, accumulation of eye strain can be suppressed and a game can be continued for a long time. In addition, in a situation where the viewing object guiding object is displayed backward, it is possible to mix protruding display even though the display definition is lowered. For this reason, it is possible to display an interesting stereoscopic image in which a stereoscopic display object that is projected and a stereoscopic display object that is displayed backward are mixed as the entire stereoscopic image. In addition, even in a situation where protruding display and backward display are mixed as the display positions of a plurality of stereoscopic display objects constituting a stereoscopic image, the display of non-guided objects is displayed in comparison with the display clarity of the viewing target guided object. The sharpness is reduced. For this reason, it is possible to guide the player's line of sight to the object to be inspected, thereby more accurately estimating the accumulation of the eye strain of the player and effectively reducing this fatigue. Become.

  In the above, the reference stereoscopic display object (viewing target guiding object) is defined among the plurality of stereoscopic display objects constituting the stereoscopic image, and the parallax amount of the reference stereoscopic display object and other stereoscopic display objects (non-guided) Although an example in which the display definition of another stereoscopic display object is reduced based on the difference between the object and the parallax amount has been described, the opposite may be possible. That is, based on the difference between the parallax amount of the other stereoscopic display object described above and the parallax amount of the reference stereoscopic display object, the display definition of the reference stereoscopic display object is changed to the display clarity of the other stereoscopic display object. You may make it increase compared with.

  In correspondence between the embodiment of the present invention and the claims, the variable display device 8 (liquid crystal display panel 804) is a stereoscopic image display device, the CPU 151 is a parallax amount calculating means, a cumulative parallax amount calculating means, and a stereoscopic image display control means. Each of the game state determination means is configured.

  The embodiment disclosed this time should be considered as illustrative in all points 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.

It is a front view which shows the structure of the whole gaming machine of embodiment of this invention. It is a block diagram which shows the schematic structure of the electric circuit of a game machine similarly. It is a block diagram which shows the schematic structure of the synthetic | combination conversion apparatus for displaying the image for right eyes, and the image for left eyes alternately for every scanning line. It is a disassembled perspective view which shows a liquid crystal display panel and the polarizing optical system, condensing optical system, and illuminating device which are arrange | positioned before and behind that. It is a top view which shows a mode that the image for right eyes and the image for left eyes displayed on a liquid crystal display panel are each seen with the player's right eye and left eye. It is a state transition diagram which shows the state of a game. FIG. 7A is a diagram illustrating a state in which a plurality of stereoscopic display objects are stereoscopically displayed on the front side and the back side of the image display surface of the liquid crystal panel. FIG. 7B, FIG. 7C, and FIG. 7D illustrate the relationship between the display position of the right-eye and left-eye images displayed on the liquid crystal display panel and the appearance position of the stereoscopic display object. FIG. It is a figure explaining the example which manages the display position of the perspective direction of a stereo image by the distance of a player's eyes and the display position of a stereo image. It is a figure explaining the example which manages the display position of a stereo image perspective direction with a convergence angle. It is a general | schematic flowchart explaining an example of the stereoscopic effect management program of a display image performed by CPU integrated in a display control apparatus. Similarly, it is a schematic flowchart explaining an example of a normal display control process. Similarly, it is a schematic flowchart explaining an example of a fatigue relaxation display control process. Similarly, it is a schematic flowchart explaining an example of a viewing object guidance display control process. Similarly, it is a schematic flowchart explaining an example of a data transfer process. Similarly, it is a schematic flowchart illustrating an example of a cumulative parallax amount calculation process. Similarly, it is a schematic flowchart explaining an example of a blurring process. It is a figure which shows a mode that a some stereoscopic display object is displayed on the fluctuation | variation display screen in the state of normal display. It is a conceptual diagram explaining the absolute value of the difference between the parallax amount of the object to be viewed and the parallax amount of the non-guide object. It is a conceptual diagram explaining the lookup table which calculates | requires the blurring amount of a non-guide object from the absolute value of the difference of parallax amount. It is a figure which shows the example of a blurring process. It is a figure which shows a mode that a some three-dimensional display object is displayed on the fluctuation | variation display screen in the state in which the viewing object guidance display control process is made. It is a figure which shows another example of a mode that a some stereoscopic display object is displayed on the fluctuation | variation display screen in the state in which the viewing object guidance display control process is made. It is a figure which shows a mode that a some three-dimensional display object is displayed on the fluctuation | variation display screen in the state of fatigue relaxation display. It is a figure which shows an example of the change with the passage of time of the display state of a viewing object guidance object after switching to protrusion display management mode, and the amount of accumulated parallax.

Explanation of symbols

8 ... Fluctuating display device 100 ... Game control device 150 ... Display control device 151 ... CPU
170 ... composite conversion device 171 ... control units 176, 177, 178 ... stereoscopic display objects 217, 228, 236 ... viewing object guidance objects 216, 218, 226, 227, 237, 238 ... non-guide objects 801 ... light source 802 ... fine Phase difference plate 803 ... Polarizing plate 804 ... Liquid crystal display panel 805 ... Polarizing plate 806 ... Diffuser 810 ... Light emitting element 811 ... Polarizing filter 812 ... Fresnel lens

Claims (8)

In a gaming machine equipped with a stereoscopic image display device that allows a player to view a stereoscopic image by binocular parallax,
The stereoscopic image viewed by the player on the stereoscopic image display device is composed of a plurality of stereoscopic display objects,
A parallax amount calculating means for calculating a parallax amount between a right-eye image and a left-eye image forming each of the plurality of stereoscopic display objects;
A stereoscopic image display that changes a display definition of the other stereoscopic display object based on a difference between a parallax amount of a reference stereoscopic display object and a parallax amount of another stereoscopic display object among the plurality of stereoscopic display objects. A gaming machine comprising a control means.   The gaming machine according to claim 1, wherein the stereoscopic image display control unit makes the display definition of the reference stereoscopic display object higher than the display definition of the other stereoscopic display object. It can be controlled to a relax mode that relaxes the player's eye regulation muscles,
The stereoscopic image display control means sets a stereoscopic display object that is stereoscopically displayed at a position far from the image display surface of the stereoscopic image display device for the player in the relax mode as the reference stereoscopic display object. The gaming machine according to claim 2. In a gaming machine equipped with a stereoscopic image display device that allows a player to view a stereoscopic image by binocular parallax,
The stereoscopic image viewed by the player on the stereoscopic image display device is composed of a plurality of stereoscopic display objects,
A parallax amount calculation means for calculating a parallax amount between a right-eye image and a left-eye image forming a specific stereoscopic display object among the plurality of stereoscopic display objects at a predetermined time interval; ,
Cumulative parallax amount calculating means for accumulating the parallax amount calculated by the parallax amount calculating means and calculating a cumulative parallax amount as the whole stereoscopic image;
Based on a comparison result between a preset allowable value and the accumulated amount of parallax, the display clarity of the stereoscopic display object is related to the amount of parallax of each of the plurality of stereoscopic display objects displayed on the stereoscopic image display device. A game machine characterized by comprising a stereoscopic image display control means for changing the degree. The stereoscopic image display control means includes
The degree to which the player can clearly observe each of the plurality of stereoscopic display objects in relation to the amount of parallax between the right-eye image and the left-eye image forming each of the plurality of stereoscopic display objects. Image sharpness changing means to be changed;
The image definition changing means changes the display definition of at least some of the plurality of stereoscopic display objects, and displays the plurality of stereoscopic display objects with a plurality of display clarity, As a player's viewing object, further comprising a viewing object guiding means for guiding to a stereoscopic display object having a higher display definition,
The viewing target guiding means reduces the display clarity of the stereoscopic display object that is not the target of the parallax amount accumulation, by reducing the display clarity of the stereoscopic display object that is not the target of the parallax amount accumulation. Guiding the object to be viewed to the stereoscopic display object that is the target for accumulating the amount of parallax,
The parallax amount accumulating unit calculates the accumulated parallax amount based on a parallax amount between a right-eye image and a left-eye image of a stereoscopic display object that is a target of the parallax amount accumulation. Item 5. The gaming machine according to item 4.   The viewing target guiding unit increases the parallax amount as the absolute value of the difference between the parallax amount of the stereoscopic display object that is the target of the parallax amount accumulation and the parallax amount of the stereoscopic display object that is not the target of the parallax amount accumulation increases. The gaming machine according to claim 5, wherein display clarity of a stereoscopic display object that is not a target of the game is reduced. Based on the comparison result between the accumulated amount of parallax and the preset allowable value, the appearance position of the stereoscopic display object is unevenly distributed to the player in front of the image display surface of the stereoscopic image display device. If it is determined that
The observation target guiding means is a three-dimensional display that is stereoscopically displayed on the near side of the image display surface as compared to the display clarity of a stereoscopic display object that is stereoscopically displayed at a position farther from the image display surface for the player. The gaming machine according to claim 5 or 6, wherein the display clarity of the display object is lowered.   The amount of parallax is quantified based on a shift amount in units of pixels on the image display surface of the stereoscopic image display device between a left-eye image and a right-eye image forming each of the plurality of stereoscopic display objects. The gaming machine according to claim 1, wherein the gaming machine is a converted value.