JP2005266116A - Display device and game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device with less flicker and with less fatigue even in the case of observation for a long time by preventing interference of images of both eyes as much as possible. <P>SOLUTION: Since a sheet member 46 provided with a grid array 47 is stuck to the front surface of a display panel 41, a player OS recognizes an image formed on a display screen 31 of the display panel 41 as a three-dimensional image. In addition, since a light shielding object 49a projecting from a gap part GP between display pixels 44 and 45 to the front direction is formed on the rear surface side of the sheet member 46, leak of the image light from the display pixels 45, 44 adjacent to the noticing display pixels 44, 45 is surely prevented. Thus, the player OS observes a clear three-dimensional image without the flicker and has less fatigue in eyes even when he/she observes the display panel 41 for a long time. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a display device that is incorporated in a game machine or the like and enables display of a stereoscopic video, and a game machine including the display device.

  As this type of display device, a lenticular method, a grid barrier method (also called a parallax barrier method), a prism method, and a shutter linked to these methods are possible as a simple stereoscopic method that can be viewed with the naked eye. There is a method. Each of these methods realizes a stereoscopic view by exposing different images to the left and right eyes using parallax. Among these, the one with a simple structure is a grid barrier system.

Further, as an improvement of the stereoscopic display device as described above, there is a device that stripes the light source by using a filter as the light source and generates a parallax using the arrangement relationship between the transmission type display panel and the striped light source. (See Patent Document 1).
JP-A-7-181429

  However, in each of the above methods, different images are observed with the left and right eyes using parallax, which is a spatial positional relationship. For example, an image that should be observed only with the right eye is partially with the left eye. It is easy to see, and flickering due to such interference causes eye fatigue, which is likely to accumulate. Such fatigue hinders the use of gaming machines and the like for a long time in displays incorporated in gaming machines and the like, leading to a decrease in the popularity of gaming machines and the separation of customers.

  Note that even in the case of the stereoscopic display device disclosed in the above document in which the light source is striped using a filter, eye fatigue occurs due to flickering due to interference due to the use of the spatial arrangement relationship.

  Therefore, an object of the present invention is to provide a display device that minimizes flickering and minimizes fatigue even during long-time observation by preventing interference between images of both eyes as much as possible.

  Another object of the present invention is to provide a gaming machine in which the display device as described above is assembled to a gaming board.

  In order to solve the above problems, a display device according to the present invention includes (a) an image display unit in which a large number of image elements are arranged, and (b) an image display unit that is disposed adjacent to the image display unit. An optical filter that separates image light from each image element in a corresponding manner to a pair of viewpoints that are spaced apart by a predetermined distance in the lateral direction on the front side of the image display unit; and (c) an image display unit And the optical filter, and extends in a direction perpendicular to the display surface of the image display unit so as to correspond to a gap between the image elements adjacent in the horizontal direction in the image display unit. And a barrier member for reducing the interference.

  According to the display device described above, since the barrier member disposed between the image display unit and the optical filter reduces interference between adjacent image elements, the pair of viewpoints corresponding to both eyes of the human body are slightly displaced. In addition, it is possible to prevent a pair of stereoscopic images incident on the positions of both eyes from interfering with each other. Therefore, according to the display device, it is possible to display an image with little flicker, and even when the image is observed for a long time, there is little fatigue. Note that since the viewpoint of the display device incorporated in a pachinko machine or the like is relatively fixed, even if an optical filter such as the above that has increased directivity such as a grid barrier is used, stereoscopic vision is hindered. In addition, flicker can be effectively reduced by the barrier member.

  In a specific aspect of the present invention, in the display device, the optical filter is disposed on the front side of the image display unit at a predetermined interval, and the barrier member is located on the optical filter side from a position close to the image display unit. Extending towards. In this case, a stereoscopic image is observed through the optical filter with the image display unit as the background.

  In another specific aspect of the present invention, a composite image that enables stereoscopic viewing corresponding to a pair of viewpoints is formed on the image display unit by setting pixels to be assigned to the image elements. In this case, stereoscopic viewing using the pixel setting is possible, and various still images and moving images can be displayed by switching the pixel assignment or setting.

  In still another specific embodiment of the present invention, the optical filter is a striped mask extending in the vertical direction with respect to a pair of viewpoints, and the barrier member is a gap between adjacent image regions in the width direction of the striped mask. It is a large number of light shields formed to face the part. In this case, stereoscopic viewing using a so-called grid barrier method is possible. Further, simple shielding and interference prevention can be performed by the shielding body. Note that image regions sequentially arranged in the width direction of the mask can correspond, for example, alternately to one viewpoint and the other viewpoint.

  In still another specific aspect of the present invention, the optical filter is disposed on the front side of the image display unit at a predetermined interval, and the light blocking body provided on the barrier member is disposed on the back side of the transparent flat plate member. It is a light-shielding groove structure formed in an arrangement corresponding to an image element. In this case, the barrier member can be attached in a lump by simply attaching the transparent flat plate member provided with the light-shielding groove structure to the image display unit, and the display device can be easily manufactured.

  In still another specific embodiment of the present invention, the optical filter is formed integrally with the surface side of the transparent flat plate member. In this case, only by sticking the transparent flat plate member to the image display unit, not only the barrier member but also the optical filter can be attached in a lump, and the display device can be easily manufactured. Furthermore, each of the vertical stripe-shaped masks to be formed on the surface of the integrated optical filter, a so-called grid barrier, has a structure in which a plurality of the same light-shielding groove structures as those on the back surface are arranged. May be further simplified.

  A gaming machine according to the present invention includes a game board on which any of the display devices described above is assembled, and causes the display device to perform display related to the game.

  The above gaming machine can display a stereoscopic image with little flicker. At this time, since the player's viewpoint does not move so much, stereoscopic vision is hardly hindered, the dimming of the image to be observed is reduced, and eye fatigue is less likely to increase even when playing for a long time.

  Hereinafter, a pachinko gaming machine incorporating a display device according to an embodiment of the present invention will be described.

  FIG. 1 is a front perspective view of a pachinko gaming machine according to an embodiment. The pachinko gaming machine 10 includes a gaming machine body 20 that is pivotally supported by a frame 12 and can be opened and closed. A gaming board 30 is attached to the front side of the gaming machine body 20, and an openable / closable front door 28 having a transparent front panel is attached to the front of the gaming board 30. A game area 30a surrounded by a pachinko ball guide rail is formed on the surface of the game board 30 as a board surface, and the pachinko ball passes through the game area 30a while gradually falling. In addition to the central display screen 31, a nail 32, a start winning opening 33, a great winning opening 34, and the like are attached to the game area 30a. An upper plate 21 for collecting paid-out pachinko balls is provided in front of the lower part of the game board 30 and directly under the front door 28, and further below the lower plate for receiving pachinko balls when the upper plate 21 is saturated. A dish 22 and a handle 24 for firing a pachinko ball are provided.

  FIG. 2 is an exploded perspective view illustrating the display device of the gaming machine main body 20. An opening 30c is formed in the center of the game board 30, and the display / control unit 100 is attached from behind so as to be fitted into the opening 30c. Although not shown, for example, on the back surface of the game board 30, in addition to a ball passage for supplying and collecting pachinko balls, a solenoid for operating the winning holes 33 and 34 in FIG. A sensor or the like for detection is attached.

  The display / control unit 100 is a unit in which a liquid crystal display device 40 that performs display related to the progress of a game and a main control device 50 that manages the progress of the game are integrated. Among these, the liquid crystal display device 40 includes a display panel 41 corresponding to the display screen 31 and a display control device 60 that is fixed behind the display panel 41 and controls its operation. The display panel 41 is a backlight type display device using a liquid crystal display element, and can display a desired image by switching the liquid crystal state in units of pixels. The player sees an image such as a moving image displayed on the display panel 41 through the front panel of the front door 28. A display control device 60 for causing the display panel 41 to perform a display operation includes a circuit device 62 housed in a case 61. On the other hand, the main control device 50 controls the pachinko gaming machine 10 in an integrated manner. The main control device 50 outputs a display command signal to the display control device 60 at an appropriate timing or monitors the passage of the pachinko ball to win a prize. The pachinko ball can be paid out to the upper plate 21 at the time of winning or winning. For example, when the main controller 50 detects a start prize, the main controller 50 outputs a display command signal designating display contents and the like to the display controller 60. Upon receiving the display command signal, the display control device 60 causes the liquid crystal display device 40 to perform a special image display corresponding to the display command signal.

  FIG. 3 is a plan view conceptually illustrating the structure of the liquid crystal display device 40 shown in FIG. The liquid crystal display device 40 includes a display panel 41 that is an image display unit that is driven by a circuit (not shown), and an illumination device 42 that includes a light guide unit that illuminates the display panel 41 from the back side with, for example, white illumination light. Prepare. The display panel 41 is a two-dimensional array of a large number of display pixels 44 and 45, each of which is an image element, along a display surface parallel to the XY plane. Each display pixel 44 and 45 is applied with an electric field. Thus, the liquid crystal element whose transmittance is changed by the above. Here, each of the display pixels 44 and 45 may be a pixel group including a group of liquid crystal elements for RGB colors.

  On these display pixels 44 and 45 arranged alternately, a composite image is formed so that the player OS facing the liquid crystal display device 40 can make a stereoscopic view. That is, the image light from one display pixel 44 is to be observed by the right eye RE which is one of the pair of viewpoints of the player OS. From the entire display panel 41, the first light for the right eye RE is used. An image is formed. Further, the image light from the other display pixel 45 is to be observed by the left eye LE which is the other of the pair of viewpoints. From the entire display panel 41, a second image for the left eye LE is formed. The Then, by observing only the first image (corresponding to the display pixel 44) on the display panel 41 with the right eye RE and observing only the second image (corresponding to the display pixel 45) with the left eye LE, the player OS A three-dimensional image can be recognized.

  A sheet member 46 is attached to the front surface of the display panel 41. The sheet member 46 is made of a plastic transparent sheet 48 that is a transparent flat plate member. A grid array 47 that is an optical filter is provided on the front side of the transparent sheet 48, and a barrier member 49 is provided on the back side of the transparent sheet 48. Is formed.

  Among these, the grid array 47 is a striped mask 47a that extends in the vertical direction (± Y direction) perpendicular to the paper surface and is arranged at substantially equal intervals in the horizontal direction (X direction). Uses the parallax to efficiently separate the observation target with the right eye RE of the player OS from the observation target with the left eye LE of the player OS. That is, one display pixel 44 of the display panel 41 is observed without waste through the optical path P1 through the slit SL by the right eye RE of the player OS, and the optical path P2 through the slit SL by the left eye LE of the player OS. Thus, the other display pixel 45 of the display panel 41 is observed without waste.

  The barrier member 49 includes a light shielding body 49a formed to face the gap portion GP between the display pixels 44 and 45 adjacent to each other in the width direction of the mask 47a, that is, the X direction. It extends toward the front side (−Z direction) where the grid array 47 is located from the adjacent back side. The light shielding body 49a has a wedge-shaped groove structure formed by forming a V groove on the back surface of the transparent sheet 48 and embedding a light shielding material therein. Each light shield 49a is for preventing not only the display pixels 44 necessary for the stereoscopic view but also a part of the unnecessary display pixels 45 from being observed by the right eye RE through the slit SL. In addition, each light shield 49a is used to prevent not only the display pixels 45 necessary for stereoscopic vision but also a part of unnecessary display pixels 44 from being observed through the slit SL by the left eye LE. is there. In the illustrated example, the left eye LE 'is displaced in the lateral direction. Even when the left eye LE ′ is displaced to the left (−X direction), for example, in accordance with the change in the posture of the player OS, the light shielding body 49a extending from the gap portion GP toward the −Z direction as described above. Therefore, the image light from the end of the display pixel 44 does not enter the left eye LE of the player OS as indicated by the dotted optical path P3. On the other hand, if the light shield 49a is not present, the image light from the end of the adjacent display pixel 44 is slightly incident. Since such leakage of image light is observed as flickering for the player OS, it is desirable to prevent the leakage of image light as much as possible. In the case of the present embodiment, the light shield 49a reliably prevents leakage of image light from the adjacent display pixels 44, so that a clear stereoscopic image without flicker can be observed, and the display panel 41, that is, the liquid crystal Even when the display device 40 is observed for a long time, there is little eye fatigue.

  Hereinafter, specific design examples will be described. As the display panel 41, a VGA type 8-inch size 640 × 480 pixel display was used. In this case, the horizontal width of the display panel 41 is about 160 mm, and the pixel pitch is 0.25 mm. Further, the distance between the binocular REs and LEs of the player OS is about 70 mm, and the distance from the binoculars RE and LE to the display panel 41 is about 700 mm. In this case, if the thickness of the transparent sheet 48 is 2.5 mm, the period of the grid array 47 is set to about 0.5 mm, and the width of each mask 47a is set to 0.2 mm. Separation by parallax can be achieved. Further, as the light shielding body 49a constituting the barrier member 49, one having a width in the X direction of 0.1 mm and a height in the Z direction of 0.1 mm is used and disposed between the display pixels 44 and 45. Accordingly, it is possible to prevent image light from leaking between the adjacent display pixels 44 and 45 and causing interference. With the liquid crystal display device 40 having the above-described structure, the player OS facing this can see a clear stereoscopic image without flickering.

  Hereinafter, the operation of the pachinko gaming machine 10 of the present embodiment will be described. When the game starts, the pachinko ball is launched on the upper part of the game board 30 by the operation of the handle 24 and gradually falls along the board surface of the game board 30. At this time, when a predetermined condition such as a pachinko ball entering the start winning opening 33 for a certain period of time is satisfied, the big winning winning opening 34 is opened. Pachinko balls paid out as a result of winning are stored in the upper plate 21 or the like. In this way, while the game is in progress, the display panel 41 displays the image related to the game as a stereoscopic image by driving the circuit device 62 provided in the display control device 60, and the player OS You can enjoy various videos related to For example, when the pachinko ball enters the start winning opening 33 and reaches a reach state, or when the pachinko ball enters the big winning opening 34 and enters a big win state, the pattern of the display image changes to be gorgeous. The present situation can be visually enjoyed by the stereoscopic video of the atmosphere.

  By the way, in this embodiment, since the sheet member 46 provided with the grid array 47 is attached to the front surface of the display panel 41, the player OS displays the image formed on the display screen 31 of the display panel 41. As described above, it is recognized as a stereoscopic image. Further, since the light shielding body 49a protruding in the front direction from the gap portion GP between the display pixels 44 and 45 is formed on the back surface side of the sheet member 46, the display pixel 45 adjacent to the display pixels 44 and 45 of interest. , 44 is reliably prevented from leaking image light. Therefore, the player OS can observe a clear stereoscopic image without flickering, and even when the display panel 41 is observed for a long time, there is little eye fatigue.

  Although the present invention has been described based on the above embodiments, the present invention is not limited to the above embodiments. For example, in the above embodiment, the liquid crystal display device 40 that can be viewed stereoscopically is incorporated in the pachinko gaming machine 10, but the liquid crystal display device 40 as described above can be incorporated in another gaming machine such as a slot machine.

  Moreover, in the said embodiment, although the display panel 41 which consists of a liquid crystal element is used for stereoscopic vision, the sheet | seat member 46 similar to the above is used also in the display panel using other devices, such as an organic EL element. Thus, a clear stereoscopic image without flickering can be displayed.

  In the above embodiment, the sheet member 46 in which the grid array 47 and the barrier member 49 are integrated is used. However, the display panel is formed by separately forming the sheet for the grid array 47 and the sheet for the barrier member 49. It can also be affixed to the front surface of 41.

  Further, each mask 47a constituting the grid array 47 formed as an optical filter on the front side of the transparent sheet 48 is embedded with a light shielding substance in a groove structure formed on the surface of the transparent sheet 48, like the barrier member 49 on the back side. It can be formed. Thereby, the manufacturing process of the grid array 47 can be simplified more.

It is a perspective view of the front side of the pachinko gaming machine according to the embodiment. It is a disassembled perspective view of the back side explaining the display apparatus of a game machine main body. It is a top view explaining the structure of the liquid crystal display device shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Pachinko machine, 20 ... Game machine main body, 30 ... Game board, 31 ... Display screen, 33, 34 ... Winning opening, 40 ... Liquid crystal display device, 41 ... Display panel, 42 ... Illumination device, 44, 45 ... Display Pixel, 46 ... sheet member, 50 ... main control device, 47 ... grid array, 48 ... transparent sheet, 47a ... mask, 49 ... barrier member, 49a ... light shielding member, 60 ... display control device, GP ... gap portion, RE ... Right eye, LE ... Left eye, OS ... Player

Claims (7)

An image display unit formed by arranging a large number of image elements;
A pair of viewpoints that are arranged adjacent to the image display unit and that are arranged such that image light from each image element of the image display unit is spaced apart by a predetermined distance in the lateral direction on the front side of the image display unit An optical filter that separates according to
The image display unit is disposed between the image display unit and the optical filter, and extends in a direction perpendicular to the display surface of the image display unit corresponding to a gap portion between image elements adjacent in the horizontal direction in the image display unit. A barrier member that reduces interference between adjacent image elements;
A display device comprising:   The optical filter is disposed on the front side of the image display unit at a predetermined interval, and the barrier member extends from a position close to the image display unit toward the optical filter side. The display device according to claim 1.   The composite image that enables stereoscopic viewing corresponding to the pair of viewpoints is formed on the image display unit according to the setting of pixels to be assigned to the image elements. The display device according to any one of the above.   The optical filter is a striped mask extending in the vertical direction with respect to the pair of viewpoints, and the barrier member is formed to face a gap portion between adjacent image regions in the width direction of the striped mask. The display device according to any one of claims 1 to 3, wherein the display device is a large number of light shielding bodies.   The optical filter is arranged on the front side of the image display unit at a predetermined interval, and the light blocking body provided on the barrier member is arranged on the back side of the transparent flat plate member so as to correspond to the image element. 5. The display device according to claim 4, wherein the display device has a light-shielding groove structure.   The display device according to claim 5, wherein the optical filter is integrally formed on a surface side of the transparent flat plate member. A gaming machine comprising the gaming board to which the display device according to any one of claims 1 to 6 is assembled, and causing the display device to perform display related to the game.

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