JP2008281659A - Display device and game device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform correction so as to display contents on a screen display in a prescribed direction corresponding to the rotation angle of a display part without letting part of characters get off a displayable display area depending on the contents on the screen display and without separately preparing an image in an originally unneeded invalid display area. <P>SOLUTION: When a player rotates the display part 1 in a direction along a display screen (one plane), the rotation angle θ1 of the display part 1 can be detected by a rotation angle detection circuit 3 or 3B on the basis of detection angle output from an inclination sensor 2 and a 3D motion sensor 2B attached to the circular display part 1. Corresponding to the detected rotation angle θ1, by a video data generation circuit 7, video signals for which rotation correction is performed are generated so as to be in a horizontal image state by inversely rotating the rotation angle θ1 from a reference rotation angle A. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a display device capable of correcting a shift in image display when a display unit that performs image display is rotated, and a game device such as a portable game machine using the display device as a display unit.

  In a conventional portable game machine, a rectangular display unit for displaying an image is used for a display device such as a liquid crystal display (LCD) or an organic EL display used as a display unit. This will be described with reference to FIG.

  FIG. 12 is a front view of a rectangular display screen in a conventional portable game machine.

  In FIG. 12, when a game is played by a conventional portable game machine, an image such as the game content 32 is displayed on the display screen of the display unit 31, and the user displays the game content 32 on the display screen of the display unit 31. Further, by watching the character 33 and the like, the user can grasp the progress of the game and enjoy the game by making judgments and operating instructions for subsequent operation processing.

As a display device using such a rectangular display unit 31 as a display screen, for example, in Patent Document 1, a tilt sensor detects that a player (user) is tilted by rotating a game machine (display unit), and There has been proposed a display device that corrects display contents in accordance with the inclination of the display unit.
JP 2001-125555 A

  However, the above prior art has the following problems.

  When a player holds and operates a game machine body like a conventional portable game machine, for example, a game that requires a handle operation such as a car racing game, it is operated by a conventional input device such as a button or a joystick. As you type, the fun of the game increases.

  However, in the conventional portable game machine using the rectangular display unit 31 as shown in FIG. 12, when an input device with the portable game machine body as a handle is used, as shown in FIG. When a rotation operation of turning the handle is performed, the image of the game content 32 also tilts in accordance with the tilted display unit 31, so that there is a problem that the screen becomes difficult to see and at the same time there is no sense of reality.

  Therefore, in the conventional sensor-linked display device disclosed in Patent Document 1, as shown in FIG. 14, the tilt sensor 35 is attached to the game machine body, and the game content 32 can be seen straight according to the tilt of the display unit 31. In this way, the image is adjusted to be horizontal by reverse rotation.

  According to this display device, when the player rotates and tilts the game machine main body, a tilt image (such as a background image influenced by the tilt) corresponding to the tilt is generated and is not affected by the tilt. By synthesizing the video (for example, a character such as a ball) and displaying it on the display unit 31, a character such as a ball that is sufficiently small with respect to the size of the display unit 31 can be handled.

  When this method is applied to a large image such as a background image of a game, as shown in FIG. 14, the game content 32 such as a background image to be displayed is kept horizontal by rotation correction. The display quality and the resource aspect to be used, such as the fact that the character 33 deviates from the displayable range and is no longer displayed on the screen on the display unit 31, or that it is necessary to prepare a separate image in the invalid display area 34 that is not originally required. There was a problem.

  The present invention solves the above-described conventional problems, and depending on the screen display content, the display can be performed without deviating from a display area where some characters can be displayed or separately preparing an image in an invalid display area that is not originally necessary. It is an object of the present invention to provide a display device capable of correcting the screen display content to be displayed in a predetermined direction according to the rotation angle of the unit, and a game device such as a portable game machine using the display device.

  The display device of the present invention detects a rotation angle of the circular display unit along the display screen of the circular display unit when the circular display unit for displaying an image and the circular display unit are arranged at a rotation reference angle. And a video data generating means for performing a reverse rotation process on the video signal by the rotation angle and displaying it on the circular display unit, thereby achieving the above object.

  Preferably, the rotation angle detection means in the display device of the present invention is attached to the circular display section or a mounting member of the circular display section, and sensor means for detecting the arrangement direction of the circular display section, and the sensor means And a rotation angle detection circuit for detecting the rotation angle based on the arrangement direction information of the circular display unit from.

  Further preferably, the rotation angle detecting means in the display device of the present invention is such that the circular display unit is arranged when the circular display unit is arranged in accordance with an inclination reference angle based on arrangement direction information of the circular display unit from the sensor unit. A tilt angle detection circuit for detecting a tilt angle in a direction perpendicular to the display screen of the display unit, and a correction calculation circuit for correcting and calculating the rotation angle detected by the rotation angle detection circuit based on the tilt angle as a normal rotation angle; It has further.

  Further preferably, the sensor means in the display device of the present invention is an inclination sensor that detects an angle formed by the circular display unit and the direction of gravity as the arrangement direction of the circular display unit.

  Further preferably, the tilt sensor in the display device of the present invention is an acceleration sensor.

  Further preferably, the sensor means in the display device of the present invention is a 3D motion sensor.

  Further preferably, the rotation angle detecting means in the display device of the present invention detects a rotation angle from a rotation reference angle of the circular display unit when the rotation angle is detected by the rotation angle detection circuit.

  Further preferably, the rotation angle detection means in the display device of the present invention further includes a control means for enabling a reference rotation angle of the circular display unit to be set in a predetermined angle direction with respect to the rotation angle detection circuit.

  Further preferably, the control means in the display device of the present invention stores the rotation reference angle of the circular display unit in the storage means so as to be readable.

  Further preferably, the rotation angle detection means in the display device of the present invention detects the tilt angle from the tilt reference angle of the circular display unit when the tilt angle detection circuit detects the tilt angle.

  Further preferably, the rotation angle detection means in the display device of the present invention further includes control means for enabling a reference tilt angle of the circular display unit to be set in a predetermined angle direction with respect to the tilt angle detection circuit.

  Further preferably, the control means in the display device of the present invention stores the tilt reference angle of the circular display unit in the storage means so as to be readable.

  Further preferably, the control means in the display device according to the present invention is configured such that the predetermined angle direction is a gravitational direction or a component direction corresponding to the gravitational direction so that a display image is displayed in a straight horizontal or inclined direction. Set to.

  Further preferably, the display screen of the circular display unit in the display device of the present invention has a horizontal line in a reference horizontal direction and a vertical line in a direction perpendicular to the horizontal line, and the video data generating means Depending on the angle, the horizontal line data of the input image signal is divided into a horizontal line and a vertical line so that it is parallel to the reference horizontal direction.

  Further preferably, in the display device of the present invention, the line width of the circular display unit is set to be thin so that aliasing does not occur in a drawing object drawn at the intersection of the horizontal line and the vertical line. .

  Further preferably, the video data generation means in the display device of the present invention is an anti-aliasing processing means for performing anti-aliasing processing so that aliasing does not occur in a drawing object drawn at the intersection of the horizontal line and the vertical line. Have

  Further preferably, in the display device according to the present invention, the circular display unit or a mounting member to which the circular display unit is attached is supported at the center of the back side of the circular display unit or the mounting member to which the circular display unit is attached. A movable joint that enables the circular display to rotate and deflect at an arbitrary angle and a support shaft that supports the movable joint are provided.

  Further preferably, in the display device according to the present invention, the circular display portion or an attachment member to which the circular display portion is attached is removable from the support shaft and the movable joint portion.

  The game apparatus according to the present invention uses the display device according to the present invention as a display unit, and is provided with a handle type input means integrated with the display unit as an operation unit, whereby the above object is achieved. The

  Preferably, in the game device of the present invention, the sensor means is attached to a peripheral edge or a side surface of the game machine body.

  Further preferably, in the game apparatus of the present invention, the sensor means is attached to the lowermost surface of the game machine body.

  The operation of the present invention will be described below with the above configuration.

  In the present invention, the rotation angle detection unit provided in the circular display unit detects the rotation angle from the predetermined direction, and the video data generation unit corrects the image in the predetermined direction according to the rotation angle. Therefore, even if the player tilts the circular display unit, the video displayed in the predetermined direction can always be viewed.

  Further, even when the player rotates and operates the input device integrated with the circular display unit like a car handle, the player can always see an image in a predetermined direction such as a horizontal display content. It becomes.

  Furthermore, since the player may tilt the circular display unit back and forth (in a direction perpendicular to the display surface) during the rotation operation, the player also detects the tilt angle of the circular display unit by a sensor means such as a tilt sensor. In this case, the rotation angle detected by the sensor means such as an inclination sensor is corrected more accurately by using the inclination angle by the correction calculation means.

  In addition, since a circular display unit is used, even if the display is corrected according to the rotation angle or tilt angle of the display unit, it is not within the range that some characters can be displayed by the game, such as a rectangular display unit. It is not necessary to prepare an image of a display area that is not necessary or visible.

  In addition, by attaching a 3D motion sensor to the circular display unit instead of the tilt sensor, the circular display unit can be rotated even when the circular display surface is arranged completely horizontally regardless of the tilt angle of the circular display unit. An angle can be detected. Since the cost of the 3D motion sensor is higher than that of the tilt sensor, the 3D motion sensor may be selected in consideration of performance and cost.

  In order to make the operation more realistic, for example, close to a real car, the game machine main body is provided with a movable joint and a support shaft so that the player can perform an operation of rotating or tilting without having a circular display unit. It may be attached. Also in this case, the image data corrected according to the rotation angle and the tilt angle is always displayed on the circular display unit while maintaining the reference position arbitrarily set by the player including the horizontal direction. The game machine main body (display device main body) can be kept rotating.

  In addition, by making the game console body detachable from the support shaft and movable joint, it can be used flexibly, such as connecting the game console body to the support shaft and movable joint as needed, or carrying it away. Can be used.

  As described above, according to the present invention, even in a game device such as a portable game machine such as a car game, even when the game machine body integrated with the controller (operation unit) is tilted, some characters may be displayed depending on the game. Orientation of the display image according to the rotation angle and tilt angle of the circular display unit without preparing a video of the display area that is outside the displayable range on the display screen and is not visible on the display screen. Can be corrected in a predetermined direction, for example, horizontally. As a result, the display screen is not affected at all in detail, and the display content in a predetermined direction, for example, a horizontal image state set by the player can be seen.

  Further, by using the 3D motion sensor, even if the game apparatus body itself is operated in a horizontal state, the display can be corrected according to the rotation angle of the circular display unit. Further, by using sensor means such as an inclination sensor, the orientation of the display image can be corrected to a predetermined direction, for example, horizontal according to the rotation angle and inclination angle of the circular display unit at a lower cost.

  Furthermore, by providing the movable joint portion and the support shaft, the player can manipulate the rotation and tilt of the circular display portion without directly supporting the game device, so that entertainment can be further improved.

Hereinafter, a case where the display device of the present invention and the first to third embodiments of the game device using the display device are applied to a portable game machine for a car game will be described in detail with reference to the drawings.
(Embodiment 1)
In the first embodiment, a case will be described in which an inclination sensor is used as an angle detection unit that detects a rotation angle along one plane and an inclination angle in a front-rear direction orthogonal to the one plane.

  FIG. 1 is a block diagram illustrating a configuration example of a display device according to Embodiment 1 of the present invention.

  In FIG. 1, a display device 10 </ b> A according to the first embodiment includes a circular display unit 1 for displaying an image, an inclination sensor 2 as a sensor unit that detects an angle formed by the circular display unit 1 and the direction of gravity, A rotation angle detection circuit 3 that detects a rotation angle θ1 along one plane (display screen) based on a detection angle output (arrangement direction information of the circular display unit 1) from the inclination sensor 2, and an inclination A detection angle output from the sensor 2 (arrangement direction information of the circular display unit 1) is input, and on this basis, a tilt angle detection circuit 4 that detects a tilt angle θ2 in the front-rear direction orthogonal to one plane, and a tilt angle detection circuit A correction calculation circuit 5 that performs a correction calculation process on the angle output (rotation angle θ1) from the rotation angle detection circuit 3 based on the angle output (inclination angle θ2) from 4, and the rotation angle A control circuit 6 as control means for setting and controlling the angle reference for the output circuit 3 and the tilt angle detection circuit 4, and the angle reference is set and controlled by the control circuit 6, so that the correction rotation angle θ1 ′ from the correction calculation circuit 5 is controlled. Based on the above, horizontal / vertical as video data generating means for generating video data to be displayed on the display unit 1 so as to reversely rotate the input video data and return the image to a predetermined direction (for example, horizontal direction). A line data generation circuit 7 and a RAM 8 as storage means for storing and controlling the angle reference by the control circuit 6 or an external storage device connected to the RAM 8 are provided.

  The tilt sensor 2, the rotation angle detection circuit 3, the tilt angle detection circuit 4, the correction calculation circuit 5, the control circuit 6, and the RAM 8 or an external storage device connected thereto constitute a rotation angle detection means, and a circular display The rotation angle of the circular display unit 1 along the display screen of the circular display unit 1 when the unit 1 is arranged in accordance with the rotation reference angle A and the tilt reference angle B is detected.

  FIG. 2 is an external view of a portable game machine having a handle type input means integrated with the display unit 1 of the display device 10A of FIG. FIG. 3 is an external view when the portable game machine body of FIG. 2 is rotated in the XY plane (one plane) during the game when the portable game machine is viewed from the front. . FIG. 4 is an external side view of the portable game machine of FIG. 2 viewed from the lateral direction, and shows a case where the circular display unit 1 is viewed from a direction perpendicular to the visual line direction of the player. FIG. 5 shows the portable game machine of FIG. 4 viewed from the side when the player rotates the portable game machine body of FIG. 4 in the YZ plane (a plane orthogonal to one plane) during the game. FIG. 2 to 5, when the circular display unit 1 of the game machine is placed in accordance with the reference rotation angle A and the reference inclination angle B, the upper direction (vertical) on the same plane (display screen) as the circular display unit 1 is shown. The direction (direction) is the Y axis, the right direction (lateral direction) is the X axis, and the rear direction (front-rear direction) orthogonal to one plane is the Z axis. In the following drawings, members having the same function will be described with the same reference numerals.

  2 to 5, a portable game machine 20A according to the first embodiment includes a game machine main body 11 provided with the circular display unit 1 of the display device 10A and the tilt sensor 2 provided on the lower side of the side, and a player. Has a handle (support frame) 12 for holding and rotating with both hands like a handle of an automobile.

  The inclination sensor 2 is attached to the lowermost side of the circular side surface of the game machine body 11 as an attachment member of the circular display unit 1, and the angle formed between the circular display unit 1 and the direction of gravity is detected by the inclination sensor 2. It has come to be. As the tilt sensor 2, a sensor using gravity such as an acceleration sensor is used. In the first embodiment, the tilt sensor 2 is attached to the bottom surface (lowermost side surface portion) of the game machine main body 11, but the tilt sensor 2 moves integrally with the game machine main body 11 and tilts normally. As long as the location can be detected, it may be installed anywhere.

  As shown in FIG. 1, the angle detection result by the tilt sensor 2 indicates the rotation angle (angle θ1 in FIG. 3) in the direction (XY plane) along the display screen (one plane) of the circular display unit 1. A rotation angle detection circuit 3 for detecting and a tilt angle detection circuit 4 for detecting the tilt angle (angle θ2 in FIG. 5) in the front-rear direction (YZ plane) perpendicular to the display screen (one plane). The signal is input.

  In the rotation angle detection circuit 3, angle information between the circular display unit 1 and the direction of gravity is input from the tilt sensor 2 as arrangement direction information of the circular display unit 1, and set by the control circuit 6 based on this input angle information. The displacement amount in the rotation direction from the reference rotation angle A (gravity direction) shown in FIG. 2 is calculated and detected as the rotation angle θ1.

  In the tilt angle detection circuit 4, angle information between the circular display unit 1 and the gravity direction is input from the tilt sensor 2 as arrangement direction information of the circular display unit 1, and set by the control circuit 6 based on this input angle information. The displacement amount in the front-rear direction from the reference inclination angle B (gravity direction) shown in FIG. 4 is calculated and detected as the inclination angle (inclination angle θ2).

  In the correction calculation circuit 5, the values of the reference rotation angle A and the reference inclination angle B are stored in the RAM 8 or other external storage device connected thereto, and these values are appropriately processed by the control circuit 6. Have been used. The control circuit 6 sets the rotation reference angle A of the circular display unit 1 for the rotation angle detection circuit 3 and sets the tilt reference angle B of the circular display unit 1 for the tilt angle detection circuit 4. Further, the control circuit 6 stores the rotation reference angle A of the circular display unit 1 in the RAM 8 so that it can be read out, and stores the inclination reference angle B of the circular display unit 1 in the RAM 8 so that it can be read out. That is, the RAM 8 or the external storage device connected thereto stores the rotation reference angle A of the circular display unit 1 set by the control circuit 6 and the inclination reference angle B of the circular display unit 1 set by the control circuit 6. ing.

  In the correction calculation circuit 5, the rotation angle θ 1 detected by the rotation angle detection circuit 3 is corrected and calculated more accurately as the normal rotation angle θ 1 ′ by the inclination angle θ 2 detected by the inclination angle detection circuit 4. The corrected rotation angle θ1 ′ is sent to the horizontal / vertical line data generation circuit 7, and display data (video signal) for displaying the original display image data on the display unit 1 based on the rotation angle θ1 ′. Is used to convert to

  The horizontal / vertical line data generation circuit 7 reversely rotates the video signal by the rotation angle θ 1 ′ and displays and outputs it on the circular display unit 1.

  With the above configuration, the operation of the portable game machine 20A of the first embodiment will be described below.

  First, in order to determine the reference rotation angle A shown in FIG. 2 at the beginning of the game, the player selects a predetermined operation switch at a position (reference state) where the player selects a reference state that matches the position where the player can operate most easily. By performing an input operation such as (button), it is possible to register in the RAM 8 of the game machine body 11 or an external storage device connected thereto. At the same time, the reference inclination angle B shown in FIG. 4 may be stored in the RAM 8 or an external storage device connected thereto.

  Next, as shown in FIG. 3, when the player holds the handle (support frame) 12 in his / her hand during the game and rotates the game machine body 11 in the XY plane, the circular display unit 1 is shown in FIG. Rotate and tilt like The rotation angle θ1 from the reference rotation angle A in the XY plane is calculated by the rotation angle detection circuit 3 from the detected angle output of the tilt sensor 2 at this time. Based on the calculated value of the rotation angle θ1, the horizontal / vertical line data generation circuit 7 reversely rotates the original game display content 13 so that the image becomes a predetermined direction, for example, horizontal, as shown in FIG. The display content converted to is displayed straight (in the original image orientation) on the display screen of the tilted circular display 1.

  Further, as shown in FIG. 5, when the player performs an operation of tilting the game machine main body 11 in the XY plane at the same time as the operation of rotating the game machine main body 11 in the XY plane, the rotation is performed. An error occurs in the angle θ1. In order to prevent this error, the rotation angle θ2 from the reference inclination angle B in the YZ plane is calculated from the detection angle output of the inclination sensor 2 by the inclination angle detection circuit 4. A calculation process for correcting the rotation angle θ1 to an accurate value is performed by the correction calculation circuit 5 using the calculated value of the rotation angle θ2, and the horizontal and vertical lines are calculated based on the corrected calculation value (rotation angle θ1 ′). The display content obtained by converting the original game display content 13 to be perpendicular to the reference rotation angle A (maintaining the image horizontally) by the data generation circuit 7 is straightened horizontally on the display screen of the tilted circular display 1. Display.

  Next, data generation processing by the horizontal / vertical line data generation circuit 7 of FIG. 1 will be described in more detail.

  FIG. 6 is a diagram for explaining a display screen in a general conventional portable game machine.

  In general, in a portable game machine, the display screen of the display unit 1 includes a horizontal line 21 and a vertical line 22 perpendicular to the horizontal line 21, as shown in FIG. The drawing object 23 is drawn using (Part). In FIG. 6, only a part of the lines is drawn for easy understanding.

  FIG. 7 is a diagram for explaining data generation processing by the horizontal / vertical line data generation circuit 7 of FIG. Here, it is assumed that the horizontal line 21 is arranged at the reference horizontal angle and the vertical line 22 is arranged in a direction perpendicular to the reference horizontal angle.

  As shown in FIG. 7A, when the circular display unit 1 is not rotated, the horizontal line 21 of the circular display unit 1 is, for example, in the horizontal direction when viewed from the player. Next, as shown in FIG. 7B, when the display unit 1 is rotated by a predetermined angle, the horizontal line 21 also rotates to become a line 21a inclined by a predetermined rotation angle θ1. At this time, the horizontal / vertical line data generation circuit 7 performs reverse rotation processing according to the rotation angle θ1 so that the orientation of the drawing object 23 as viewed from the player does not change, and the horizontal line data of the input signal is converted to the reference horizontal angle. To the horizontal line 21 and the vertical line 22 so as to be parallel to each other. Thereby, the drawing object 23 is converted into a drawing object 23a displayed across a plurality of lines and sent to the display unit 1, and the display state of the drawing object 23 in FIG. 7A is displayed on the display screen. The image is displayed as a drawing object 23a in FIG.

  In FIG. 7B, jaggedness (aliasing) like the drawing object 23a occurs in the drawing object 23 that should be a straight line, but in actuality, the line width is made sufficiently thin, By providing anti-aliasing processing means and adding anti-aliasing processing, the jaggedness (aliasing) can be suppressed and smoothed to the extent that the player does not know.

As described above, according to the first embodiment, even in a portable game machine 20A such as a car game, even if the portable game machine 20A main body integrated with the handle (operation unit) 12 is tilted, some characters depending on the game. The image display is corrected to a predetermined image orientation, for example, horizontal, in accordance with the rotation angle θ1 ′ of the display unit 1 without separately preparing an image of an invalid display area that is not necessary. can do. Therefore, the display screen is not affected at all in detail, and the player can see the straight game display content 13 in a horizontal state, for example, as the predetermined image orientation. In addition, as the direction of the predetermined image, for example, when a car runs on a course with a sloping road surface, the image viewed from the driver is also tilted, so the image to be set needs to be a tilted image from the beginning.
(Embodiment 2)
In the second embodiment, a case will be described in which a 3D motion sensor 2B described later is used instead of the tilt sensor 2 shown in FIGS.

  FIG. 8 is a block diagram illustrating a configuration example of a display device according to Embodiment 2 of the present invention. In FIG. 8, the same reference numerals are given to members having the same effects as the constituent members in FIG. 1.

  In FIG. 8, the display device 10B according to the second embodiment includes a circular display unit 1, a 3D motion sensor 2B, a rotation angle detection circuit 3B, a control circuit 6, and horizontal / vertical line data generation as video data generation means. The circuit 7 has a RAM 8 as a storage means or an external storage device connected thereto.

  The 3D motion sensor 2B, the rotation angle detection circuit 3B, the control circuit 6, and the RAM 8 or an external storage device connected thereto constitute rotation angle detection means. The circular display unit 1 is adjusted to the rotation reference angle A. The rotation angle of the circular display unit 1 along the display screen of the circular display unit 1 when arranged is detected.

  2 to 5, the portable game machine 20B of the second embodiment is provided with a game machine main body 11 provided with a 3D motion sensor 2B, and the game machine main body 11. And a handle (support frame) 12 for holding and operating.

  2 to 5, the 3D motion sensor 2B is attached to the game machine body 11, and the rotation angle θ1 from the reference rotation angle A of the display unit 1 is changed to the reference inclination angle by the 3D motion sensor 2B. It is obtained irrespective of the inclination angle element θ2 from B. However, in the 3D motion sensor 3B, the rotation angle is basically obtained with reference to the azimuth (north direction) or gravity (downward direction). Therefore, the detected angle output from the 3D motion sensor 2B is the reference rotation. In order to convert the rotation angle θ1 from the angle A, the rotation angle is sent to the rotation angle detection circuit 3B.

  In the rotation angle detection circuit 3B, the displacement amount from the reference rotation angle A shown in FIG. 2 is calculated as the rotation angle θ1. Note that the value of the reference rotation angle A is stored in the RAM 8 or other external storage device, and the value is appropriately processed by the control circuit 6 and used. Since the rotation angle θ1 obtained by the rotation angle detection circuit 3B is the corrected rotation angle θ1 ', it is sent to the horizontal / vertical line data generation circuit 7 as it is.

  In the horizontal / vertical line data generation circuit 7, the rotation angle θ1 (= θ1 ′) sent from the rotation angle detection circuit 3B is converted into data (video signal) for displaying the original display image data on the display unit 1. Used to do. Data generation processing in the horizontal / vertical line data generation circuit 7 is performed in the same manner as in the first embodiment.

  In FIG. 8, the 3D motion sensor 2 </ b> B and the rotation angle detection circuit 3 </ b> B are separately provided, but a module in which the two are integrated may be used. In this case, since the reference inclination angle A of the display unit 1 can be freely set in any angle direction (here, the image is horizontal in the vertical direction), a wider display can be performed.

  As described above, according to the second embodiment, even in a portable game machine 20B such as a car game, even when the circular display unit 1 integrated with the handle (operation unit) 12 is rotated and tilted, a part of the game depends on the game. The character 13a moves the display image in a predetermined direction according to the rotation angle θ1 of the display unit 1 without deviating from the display area that can be displayed as in the past or separately preparing an image of the invalid display area that is not necessary. For example, it can be corrected horizontally so that it can be seen straight. Therefore, the display screen is not affected at all in details, and the display content in a horizontal image state that is easy for the player to see can be seen.

  In the first embodiment, the rotation angle θ1 is corrected by the inclination angle θ2 in order to obtain the rotation angle θ1 of the game machine body 11 (display unit 1) using the simple inclination sensor 2. In the second embodiment, by using the 3D motion sensor 2B instead of the tilt sensor 2, the rotation angle directly from the reference rotation angle A of the display unit 1 is not directly performed without performing a correction calculation process of the rotation angle θ1 based on the tilt angle θ2. θ1 (= θ1 ′) can be obtained. Furthermore, in this case, as shown in FIG. 9, even when the display screen of the display unit 1 is completely perpendicular to the direction of gravity, the rotation angle θ1 from the reference rotation angle A of the display screen of the display unit 1 (= Θ1 ′) can be obtained.

Therefore, in the second embodiment, by using the 3D motion sensor 2B, the display image can be corrected according to the rotation angle θ1 of the display unit 1 even if the game machine body 11 is rotated in a horizontal state. . On the other hand, in the first embodiment using the tilt sensor 2, the rotation angle θ1 cannot be obtained in the case of FIG. 7, but in the case of using the tilt sensor 2, the display is made at a lower cost. The display image can be angle-corrected according to the rotation angle θ1 and the inclination angle θ2 of the unit 1.
(Embodiment 3)
In the third embodiment, the circular display unit 1 or a mounting member (portable game machine body 11) to which the circular display unit 1 is attached is supported, and the circular display unit 1 is rotated and deflected (tilted in the front-rear direction) at an arbitrary angle. A case where the movable joint portion and the support shaft are provided will be described.

  10 is an external side view of the portable game machine according to the third embodiment of the present invention when viewed from the lateral direction, and FIG. 11 is an external view of the portable game machine of FIG. 10 viewed from the back. It is a rear view.

  In FIG. 10, the portable game machine body 11 of the portable game machine 20C according to the third embodiment has a movable joint 14 and a support shaft 15 connected thereto attached to the center of the back surface. With this movable joint 14, the player can keep the portable game machine body 11 at a free angle with respect to the support shaft 15. Further, as shown in FIG. 11, the movable joint portion 14 allows the player to rotate or / and tilt the portable game machine body 11 around the joint portion while keeping the angle with the support shaft 15 constant. Can do. Further, by fixing the support shaft 15 to an immovable object such as a stand, the portable game machine body 11 can be supported and operated like a handle of an automobile.

  As described above, according to the third embodiment, in the portable game machine 20C such as a car game having the display device 10C, even when the circular display unit 1 integrated with the operation unit (handle 12) is rotated and tilted. The display image is displayed in a predetermined direction according to the rotation angle θ1 ′ of the display unit 1 without preparing a video of an invalid display area that is not necessary in some cases because the character 13a is out of the displayable range depending on the game. For example, the angle can be corrected horizontally so that it is easy to see straight. Therefore, the display screen is not affected at all in detail, and the player can view the game display content 13 in a predetermined direction, for example, a horizontal state.

  Further, according to the third embodiment, by providing the movable joint portion 14 and the support shaft 15, as shown in the first embodiment and the second embodiment, the player does not directly hold the game machine by hand. Can play games. Furthermore, in a game that requires an operation such as the handle 12 in a car game, an operation method with higher entertainment properties can be realized such as turning the handle 12 away.

  In the third embodiment, the game machine main body 11 is detachable from the movable joint 14 and the support shaft 15, so that the player can enjoy a highly entertaining game depending on the situation. It is also possible to enjoy the game easily.

  As described above, according to the first to third embodiments, when the player rotates the display unit 1 in a direction along the display screen (one plane), the tilt sensor 2 attached to the circular display unit 1 or The rotation angle θ1 of the display unit 1 can be detected by the rotation angle detection circuit 3 or 3B based on the detection angle output from the 3D motion sensor 2B.

  In accordance with the detected rotation angle θ1, the horizontal / vertical line data generation circuit 7 serving as the video data generation means performs a reverse rotation process on the rotation angle θ1 from the reference rotation angle A so that the image has the original predetermined direction, For example, it is possible to generate a video signal that is rotationally corrected so as to be in a horizontal image state. As a result, unlike the conventional rectangular screen, some characters cannot be seen from the displayable area (display screen) due to the rotation of the rectangular screen, or a video of an invalid display area that is not originally necessary is not separately prepared. According to the rotation angle θ1 of the display unit 1, the image display can be horizontally corrected so as to be easily seen in a predetermined direction, for example, straight.

  Although not particularly described in the first to third embodiments, as the display device of the present invention, when the circular display unit 1 that performs image display and the circular display unit 1 are arranged according to the rotation reference angle, Rotation angle detection means for detecting the rotation angle of the circular display unit 1 along the display screen of the circular display unit 1 and horizontal / vertical lines for performing reverse rotation processing of the video signal by this rotation angle and displaying and displaying it on the circular display unit 1 If the data generation circuit 7 is included, the display unit 1 can be used without deviating from a display area where some characters can be displayed depending on the screen display contents, or separately preparing an image in an invalid display area that is not originally necessary. It is possible to achieve the object of the present invention which can correct the screen display contents so as to be displayed in a predetermined direction (for example, horizontal) according to the rotation angle. Kill.

  As mentioned above, although this invention has been illustrated using preferable Embodiment 1-3 of this invention, this invention should not be limited and limited to this Embodiment 1-3. It is understood that the scope of the present invention should be construed only by the claims. It is understood that those skilled in the art can implement an equivalent range based on the description of the present invention and the common general technical knowledge from the description of specific preferred embodiments 1 to 3 of the present invention. Patents, patent applications, and documents cited herein should be incorporated by reference in their entirety, as if the contents themselves were specifically described herein. Understood.

  The present invention relates to a display device capable of correcting a shift in image display when a display unit for displaying an image is rotated, and a game device such as a portable game machine using the display device as a display unit. In some game devices such as portable game machines, even if the game machine body integrated with the controller (operation unit) is tilted, some characters are displayed outside the displayable range on the display screen depending on the game. The orientation of the display image can be corrected to a predetermined direction, for example, horizontal, in accordance with the rotation angle or tilt angle of the circular display unit, without preparing a video of a display area that is not necessary on the screen or is not originally necessary. . As a result, the display screen is not affected at all in detail, and the display content in a predetermined direction, for example, a horizontal image state set by the player can be seen.

  Further, by using the 3D motion sensor, even if the game apparatus body itself is operated in a horizontal state, the display can be corrected according to the rotation angle of the circular display unit. Further, by using sensor means such as an inclination sensor, the orientation of the display image can be corrected to a predetermined direction, for example, horizontal according to the rotation angle and inclination angle of the circular display unit at a lower cost.

  Furthermore, by providing the movable joint portion and the support shaft, the player can manipulate the rotation and tilt of the circular display portion without directly supporting the game device, so that entertainment can be further improved.

It is a block diagram which shows the structural example of the display apparatus which concerns on Embodiment 1 of this invention. It is the external view which looked at the portable game machine provided with the handle type input means integrated with the display part of the display apparatus of FIG. 1 as an operation part from the front. FIG. 3 is an external view of the portable game machine as viewed from the front when the portable game machine body of FIG. 2 is rotated by a predetermined angle within one plane. It is the external appearance side view which looked at the portable game machine of FIG. 2 from the horizontal direction. When the portable game machine body of FIG. 2 is rotated in a plane orthogonal to one plane, it is an external side view of the portable game machine viewed from the side. It is a screen figure for demonstrating the display screen in a common conventional portable game machine. FIG. 2 is a screen diagram for explaining data generation processing by a horizontal / vertical line data generation circuit of FIG. 1. It is a block diagram which shows the structural example of the display apparatus which concerns on Embodiment 2 of this invention. 8 is a side view showing an appearance of the portable game machine when viewed from the side when the portable game machine body having the display device of FIG. 8 is arranged in parallel with the ground and the display screen is completely perpendicular to the direction of gravity. FIG. It is the external appearance side view which looked at the portable game machine concerning Embodiment 3 of this invention from the horizontal direction. It is an external appearance rear view at the time of seeing the portable game machine of FIG. 10 from the back. It is the figure which looked at the screen of the rectangular display part in the conventional portable game machine from the front. It is a figure when the display screen at the time of rotating operation of the game machine main body in the portable game machine of FIG. 12 is seen from the front. It is the figure which looked at the display screen at the time of adjusting so that the display content may not be rotated, when rotating the game machine main body about the conventional portable game machine currently disclosed by patent document 1 from the front.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Circular display part 2 Tilt sensor 2B 3D motion sensor 3, 3B Rotation angle detection circuit 4 Tilt angle detection circuit 5 Correction calculation circuit 8 RAM
6 Control Circuit 7 Horizontal / Vertical Line Data Generation Circuit 10A, 10B, 10C Display Device 11 Game Machine Body 12 Handle (Support Frame)
13 Display contents of game 13a Character 14 Movable joint 15 Support shaft 21, 21a Horizontal line constituting display screen of display unit 22, 22a Vertical line constituting display screen of display unit 23, 23a Drawing object 20A, 20B, 20C Portable game machine A Reference rotation angle θ1 Reference rotation angle A rotation angle θ1 ′ Corrected rotation angle B Reference tilt angle θ2 Reference tilt angle B tilt angle

Claims (21)

A circular display for displaying images;
Rotation angle detecting means for detecting the rotation angle of the circular display unit along the display screen of the circular display unit when the circular display unit is arranged in accordance with the rotation reference angle;
A display device comprising: video data generating means for performing a reverse rotation process on the video signal by the rotation angle and displaying the video signal on the circular display unit.   The rotation angle detection means is attached to the circular display section or a mounting member of the circular display section, and detects sensor arrangement direction of the circular display section, and arrangement direction information of the circular display section from the sensor means. The display device according to claim 1, further comprising: a rotation angle detection circuit that detects the rotation angle.   The rotation angle detection unit is configured to move the circular display unit in a direction perpendicular to the display screen of the circular display unit when the circular display unit is arranged in accordance with an inclination reference angle based on the arrangement direction information of the circular display unit from the sensor unit. The display according to claim 2, further comprising: an inclination angle detection circuit that detects an inclination angle; and a correction calculation circuit that corrects and calculates the rotation angle detected by the rotation angle detection circuit based on the inclination angle as a normal rotation angle. apparatus.   The display device according to claim 3, wherein the sensor means is an inclination sensor that detects an angle formed by the circular display unit and the direction of gravity as an arrangement direction of the circular display unit.   The display device according to claim 4, wherein the tilt sensor is an acceleration sensor.   The display device according to claim 2, wherein the sensor means is a 3D motion sensor.   The display device according to claim 2, wherein the rotation angle detection unit detects a rotation angle from a rotation reference angle of the circular display unit when the rotation angle detection circuit detects the rotation angle.   The display device according to claim 7, wherein the rotation angle detection unit further includes a control unit that allows a rotation reference angle of the circular display unit to be set in a predetermined angle direction with respect to the rotation angle detection circuit.   The display device according to claim 8, wherein the control unit stores the rotation reference angle of the circular display unit in a storage unit so as to be readable.   The display device according to claim 3, wherein the rotation angle detection unit detects an inclination angle from an inclination reference angle of the circular display unit when the inclination angle is detected by the inclination angle detection circuit.   The display device according to claim 10, wherein the rotation angle detection unit further includes a control unit that allows a reference tilt angle of the circular display unit to be set in a predetermined angle direction with respect to the tilt angle detection circuit.   The display device according to claim 11, wherein the control unit stores the tilt reference angle of the circular display unit in a storage unit so as to be readable.   12. The control unit according to claim 8 or 11, wherein the control unit sets the gravitational direction or a component direction corresponding to the gravitational direction so that the display image is displayed in a straight horizontal direction or tilted in the predetermined angular direction as the predetermined angular direction. Display device.   The display screen of the circular display unit has a horizontal line in a reference horizontal direction and a vertical line in a direction orthogonal to the horizontal line, and the video data generation unit generates a horizontal line of an input image signal according to the rotation angle. The display device according to claim 1, wherein the line data is divided into a horizontal line and a vertical line so that the line data is parallel to the reference horizontal direction.   The display device according to claim 14, wherein a line width of the circular display unit is set to be thin so that aliasing does not occur in a drawing object drawn at an intersection between the horizontal line and the vertical line.   The said video data generation means has an anti-aliasing process means which performs an anti-aliasing process so that an aliasing may not generate | occur | produce in the drawing object drawn at the intersection of the said horizontal line and the said vertical line. Display device.   The circular display unit or a mounting member to which the circular display unit is attached is supported at a central portion on the back side of the circular display unit or the circular display unit, and the circular display unit is rotated at an arbitrary angle. The display device according to claim 1, wherein a movable joint that can be deflected and a support shaft that supports the movable joint are provided.   The display device according to claim 17, wherein the circular display unit or an attachment member to which the circular display unit is attached is removable from the support shaft and the movable joint.   19. A game apparatus using the display device according to claim 1 as a display unit, and a handle type input means integrated with the display unit as an operation unit.   The game device according to claim 19, wherein the sensor means is attached to a peripheral portion or a side portion of the game machine body.   The game device according to claim 19 or 20, wherein the sensor means is attached to a lowermost surface of the game machine body.

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