JP2013186410A - Portable display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable display device with improved operability for a user.SOLUTION: A portable display device that includes a display 11 provided in a housing 20 and for displaying an image on the basis of operation by a user includes: a driving mechanism 23 that changes a position of the display 11 in a housing 10 (a relative position of the housing 20 with respect to the housing 10); and a control unit that controls the driving mechanism 23. The control unit is configured to estimate a visible region by the user in the housing 10 on the basis of a detection value and the like of various sensors and output to the driving mechanism 23 a control command for changing the position of the display 11 to a specific position included in the visible region (a viewing position of the user). Therefore, irrespective of how the user moves the housing 10, the image on the display 11 is always displayed in the visible region by the user.

Description

  The present invention relates to a portable display device that displays an image based on a user's operation.

  Conventionally, a display unit that displays a game image based on a user's key or switch operation is arranged at the center of the main surface of a horizontally long casing, and a cross key, a push button switch, and an operation switch for the user to perform key operations However, there is known a portable game machine provided in the space on both sides of the display unit in the housing or on the upper surface side of the housing (see, for example, Patent Document 1). Also, in this type of portable game, the case is configured to be foldable, the display unit is disposed on the upper main surface in a state where the case is opened, and various keys and switches (including a touch panel) are provided on the lower main surface. A configuration provided with a) is also known.

  Furthermore, for example, in a body fat scale for measuring the body fat mass of a user, a body fat scale configured to be portable like a portable game machine is known. In this type of body fat scale, for example, a display unit that displays body fat mass is disposed slightly above the center of the main surface of the horizontally long casing, and the user touches his / her finger (for operation). A structure in which the electrodes are provided on the upper surface side and the lower surface side of the housing (see, for example, Patent Document 2), the display unit is disposed on the upper main surface in a state where the housing that can be folded in half is opened, and the lower side A configuration in which an electrode is provided on the main surface (for example, see Patent Document 3) is known. This type of body fat meter estimates the amount of body fat based on the bioimpedance detected from the electrodes while the left and right fingers of the user are touching the pair of electrodes.

JP 2007-103380 A JP 2000-237158 A Japanese Patent Laid-Open No. 2001-238861

  Even if these portable game machines and portable body fat scales have a structure that can be folded in two, the position of a display unit that displays an image based on the user's operation is determined in advance before the user's operation. Therefore, for example, if the casing is moved so that the user can easily operate keys, switches, electrodes, and the like, the display image may be separated from the user's viewing position.

  For this reason, there is a problem that the range in which the user can move the housing during the operation is limited to a range in which the display image is included in the area where the user can visually recognize, which may not always be easy to use. there were.

  In order to solve the above-described problems, an object of the present invention is to provide a portable display device that is user-friendly.

  The portable display device according to claim 1, which is an invention made to achieve the above object, includes a display unit that is provided in the housing and displays an image based on a user operation, and a position of the display unit in the housing. Driving means for changing the visual recognition position to a preset visual recognition position, visual recognition area estimation means for estimating the visual recognition area visible to the user in the housing, and a specific position included in the visual recognition area estimated by the visual recognition estimation means Visual position setting means for setting the visual position.

  In the portable display device configured as described above, the position of the display unit is driven and controlled so that an image is always displayed in the user's viewable area in the housing. Therefore, according to the portable display device of the present invention, even if the user moves the housing relatively large during operation, the display image does not move away from the user's viewing position, so that the housing can be moved during operation. Since the range is expanded, usability for the user can be improved.

In the present invention, there are several methods for estimating the visible region by the visual region estimation means.
For example, as described in claim 2, the visual recognition area estimation means may estimate the visual recognition area according to the user's operation. Specifically, an area designated by the user's key or switch operation may be set as a viewable area (may be estimated), and the arrangement of the left and right hands of the user in the housing is read from the user's contact operation. Thus, the user's face direction may be estimated, and the visible region may be further estimated from the face direction.

  Alternatively, as described in claim 3, an imaging unit that captures an image in a predetermined direction outside the housing, and a face recognition unit that recognizes the orientation of the user's face from an image captured by the imaging unit. Under the configuration of the present invention, the visual recognition area estimation means may estimate the visual recognition area based on the face orientation recognized by the face recognition means. In this case, since the orientation of the user's face can be recognized, it is not necessary for the user to designate the viewable region by operating a key or a switch, and the viewable region can be estimated with higher accuracy.

  In the portable display device according to claim 3, as described in claim 4, the imaging means may be provided integrally with the display unit. With this configuration, the position of the display unit can be changed so as to follow the movement (in the direction) of the face of the user viewing the display image.

  Further, according to a fifth aspect of the present invention, there are provided a gripping portion provided on the casing and gripped by the user, and a displacement detection means for detecting a displacement of at least one of the gripping section and the casing with respect to the specific position. Under the configuration of the invention, the visual position setting means may variably set the visual position based on the displacement detected by the displacement detection means.

  According to such a configuration, by changing the position of the display unit by the amount of displacement opposite to the displacement (direction, amount) when the user moves the housing (or gripping unit), for example, the user Even when the orientation of the face cannot be imaged, the position (viewing position of the user) included in the visually recognizable area can be suitably set.

In the present invention, there are several methods for changing the position of the display unit by the driving means.
For example, in a configuration in which the present invention includes a plurality of display units, the driving unit selects, from the plurality of display units, a display unit that can display an image at the viewing position set by the viewing position setting unit. May be regarded as a change in the position of the display unit.

  Alternatively, in the configuration in which the present invention includes one display unit, moving the position of the display unit to the viewing position set by the viewing position setting unit by the driving unit is considered as changing the position of the display unit. You may hesitate.

  In the latter case, specifically, in the portable display device according to claim 5, as described in claim 6, the housing provided with the grip portion is provided with the first housing and the display portion. The housing is a second housing, the first housing is made of a transparent or translucent material, and is disposed so as to cover the second housing. A configuration may be adopted in which a moving mechanism for moving the position of the housing is provided, and drive control for changing the position of the display unit to the viewing position is performed on the moving mechanism.

  According to such a configuration, it is not necessary to provide a plurality of display units, and the display unit is protected by the first housing, so that the cost can be reduced and the lifetime of the apparatus can be increased.

In the present invention, there are some variations in the shape of the housing.
For example, the shape of the housing may be a horizontally long shape like a portable game machine (in this case, it is desirable that one display portion is provided for each of the front surface and the back surface), and it is a rectangular parallelepiped or a cube. May be. Alternatively, the shape of the housing may be spherical.

  In the latter case, specifically, in the portable display device according to claim 6, as described in claim 7, the outer peripheral surface and the inner peripheral surface of the first housing are formed in a spherical shape, The second housing may have a spherical portion that moves along the inner peripheral surface of the first housing.

  According to such a configuration, the position of the display unit with respect to the first housing can be rotated 360 degrees, and there are almost no parts that block the display unit when viewed from the user. And can be improved.

  In addition, the present invention may be any portable display device, and may be applied to, for example, a portable game machine, a television, or the like, or a biometric device that measures bioimpedance such as a portable body fat scale. May be applied.

  In the latter case, specifically, in the portable display device according to claims 5 to 7, as described in claim 8, a biological signal that is provided on the grasping portion and represents a user's pulse wave or electrocardiogram is provided. The structure provided with the biometric signal detection means to detect and the biometric display control means to display the detection result by a biosignal detection means on a display part may be sufficient.

  According to such a configuration, even if the user's viewable region is away from the position of the display unit by changing the posture while the user is holding the portable display device, the position of the display unit is Since it is automatically changed to the user's visual recognition position, even if the user changes the posture from the pre-measurement posture at the time of measurement, the user does not need to hold the portable display device again, improving the convenience for the user Can be made.

  Further, in the portable display device according to any one of claims 5 to 8, as described in claim 9, the portable display device includes a biological signal detection unit that is provided in the gripping unit and detects a biological signal that represents a user's electrocardiogram. Originally, the gripping portion is provided on the side surfaces facing each other in the casing, and the visual recognition area estimation means determines the gripping positions of the user's left hand and right hand in the casing based on the detection result by the biological signal detection means, respectively. It may be configured to identify and estimate the visually recognizable region based on the identified gripping position.

  In such a configuration, from the potential difference of the biological signal representing the electrocardiogram of the user, the gripping part that is in contact with the left hand of the user and the gripping part that is in contact with the right hand of the pair of gripping parts are identified. Therefore, the grip position by the user's left hand and right hand in the housing can be specified.

  For this reason, for example, in a configuration in which the position of the display unit moves in the vertical direction when viewed from the user, the viewable region is further increased by estimating the position (orientation) of the user's face from the grip position by the user's left hand and right hand. Since it can be estimated, the user-friendliness for the user can be improved without necessarily requiring the imaging means and face recognition means. In this case, it is desirable that the display unit be configured to change the orientation of the displayed image in the vertical direction.

It is the schematic which shows the external appearance of a biometric apparatus, (a) is a top view, (b) is a front view, (c) is a side view. It is the schematic which shows the structure of a drive mechanism. It is a block diagram which shows the structure of a biometric apparatus. It is a flowchart which shows the procedure of the display position change process which a control part performs. It is the schematic which shows the usage example of a biometric apparatus. It is the schematic which shows the modification of a drive mechanism. It is the schematic which shows the modification of a camera. It is the schematic which shows the external appearance of a portable game machine, (a) is a top view, (b) is a front view, (c) is a side view. It is a block diagram which shows the structure of a portable game machine. It is a flowchart which shows the procedure of the initial position setting process which a control part performs. It is a flowchart which shows the procedure of the display position correction process which a control part performs. It is the schematic which shows the external appearance as a modification of a portable game machine, (a) is a top view, (b) is a front view, (c) is a side view. It is the 1st schematic diagram showing appearance of a display and a case in other embodiments. It is the 2nd schematic diagram which shows the external appearance of the display and housing | casing in other embodiment.

[First Embodiment]
A biometric apparatus as a first embodiment to which a portable display device of the present invention is applied will be described below with reference to the drawings.

  The biometric apparatus 1 according to the present embodiment is designed to have a size and a weight that can be carried by a measurer (user), and the user's electrocardiogram, heartbeat, pulse wave and other numerical values (hereinafter, “biological numerical values”). As shown in FIG. 1, a measuring device is a display 11 for displaying an image representing a biological value measured through a user operation, a camera 12 for imaging a user's face, a user's And a biosensor group 13 for detecting biosignals representing electrocardiogram and pulse wave.

  The biometric apparatus 1 according to the present embodiment measures at least numerical values of the electrocardiogram and pulse wave based on the biosignal detected by the biosensor group 13, and further sets an interval at which the R wave appears in the electrocardiogram. It is assumed that the heart rate value (heart rate) is measured based on this.

  The display 11 is a thin display device such as a well-known liquid crystal display or organic EL display, for example, and a display screen according to the size of the biometric device 1 is employed. The camera 12 is a well-known imaging device using a solid-state imaging device such as a CCD or MOS, and employs a camera that can identify at least the user's face as the number of pixels.

  The biosensor group 13 includes an electrocardiographic sensor 21 (see FIG. 3) that outputs an electrocardiogram signal representing a user's electrocardiogram using a pair of electrode units 14 among biosignals, and an optical element 18 that is used by the user. And a pulse wave sensor 22 (see FIG. 3) that outputs a pulse wave signal representing the pulse wave. Among these, the electrocardiographic sensor 21 is a potential difference (a weak current flowing in a path including the user's heart) that occurs between the electrodes 14 when the left and right hands of the user come into contact with one and the other of the pair of electrodes 14. A signal based on (a value corresponding to 1) is output as an electrocardiogram signal. In addition, the pulse wave sensor 22 is a component of the optical element 18 in which light emitted from a light emitting element (not shown) toward a user's hand reaches a capillary artery passing through the user's body and flows in the blood flowing through the capillary artery. A part of the scattered light reflected without being absorbed by hemoglobin is received by a light receiving element (not shown) so that a signal based on the amount of received light is output as a pulse wave signal.

In addition, the biometric device 1 according to the present embodiment includes a spherical first housing 10 provided so that the pair of electrode portions 14 are exposed, and a second housing 20 stored inside the first housing 10. And.
The first housing 10 is formed of a transparent or translucent resin so that the outer peripheral surface and the inner peripheral surface of the first housing 10 are spherical, and is arranged so as to cover the second housing 20. Yes. In addition, one electrode portion 14 is provided on each side surface of the first housing 10 that faces each other. Here, the electrode unit 14 is provided with two application electrodes 14a and two reference electrodes 14b for allowing a weak current to flow in the user's hand. Based on the applied voltage and the current value, the living body of the user is provided. By measuring the impedance, for example, the area (amount) of the user touching the electrode part before the electrocardiogram measurement can be estimated. In addition, the application electrode 14a of this embodiment is used as a detection electrode for detecting an electrocardiogram signal during electrocardiogram measurement.

  The second housing 20 is composed of a spherical portion 20a formed in a spherical shape along the inner peripheral surface of the first housing 10 and a pair of flat portions 20b formed in a planar shape so as to face each other. Yes. Moreover, the display 11 is arrange | positioned in the center part in one of a pair of plane parts 20b, and the camera 12 is provided in the upper part of the display 11. FIG. The display 11 has an image display surface facing the outside of the second housing 20 and is arranged in parallel with the flat surface portion 20b. In addition, the camera 12 is arranged so that a predetermined angle range centering on the vertical direction of the planar portion 20b is an imaging region toward the outside of the second housing 20. On the other hand, the spherical surface portion 20a of the second housing 20 has a plurality of roller members 28 that slide on the inner peripheral surface of the first housing 10 and a stopper member 29 that brakes the roller member 28 (second housing). 2) is arranged.

  The roller member 28 is rotatably provided on the outer peripheral surface of the second housing 20, and the stopper member 29 is configured to be extruded in a direction perpendicular to the outer peripheral surface of the second housing 20, In a state of being pushed out via the actuator 26 (see FIG. 3) based on a command from the control unit 30 (see FIG. 3), the second housing is brought into contact with the inner peripheral surface of the first housing 10 by friction force. 20 is braked.

  Further, inside the second housing 20, a drive mechanism 23 that moves the position of the second housing 20 relative to the first housing 10 based on a command from the control unit 30 (see FIG. 3), An acceleration sensor 24 and a gyro sensor 25 (see FIG. 3) are provided.

  As shown in FIG. 2, the drive mechanism 23 has an axis perpendicular to the display screen of the display 11 as an X axis, an axis parallel to the horizontal direction of the display screen as a Y axis, and an axis parallel to the vertical direction of the display screen as a Z axis. Are provided with a weight portion 15 for changing the center of gravity of the second housing 20 and a three-axis slide portion 16 for conveying the weight portion 15 along the X axis, the Y axis, and the Z axis. The three-axis slide unit 16 includes an X-axis slide unit 16x, a Y-axis slide unit 16y, and a Z-axis slide unit 16z as three slide units arranged along the X-axis, Y-axis, and Z-axis, respectively. Thus, the middle point of the Y-axis slide part 16y and the Z-axis slide part 16z are connected, and this connection point is connected to the end of the X-axis slide part 16x to form the connection part 17. Further, the weight portion 15 and the triaxial slide portion 16 are formed so that the weight portion 15 can be moved from one to the other in each of the shaft slide portions 16x, 16y, and 16z via the connecting portion 17. As described above, the drive mechanism 23 is configured to be able to displace the second housing 20 by 360 degrees with respect to the first housing 10 by moving the position of the weight portion 15 in the triaxial slide portion 16. ing.

  The acceleration sensor 24 is configured to detect the acceleration of the second housing 20 (and the first housing 10) in the X axis, the Y axis, and the Z axis, and the gyro sensor 25 is configured to detect the X axis, the Y axis, and the Y axis. , And the rotation angle and angular velocity of the second casing 20 (and the first casing 10) about the Z axis.

  Furthermore, as shown in FIG. 3, the biometric device 1 of the present embodiment performs various processes based on input signals from the acceleration sensor 24, the gyro sensor 25, the camera 12, the electrocardiogram sensor 21, and the pulse wave sensor 22. And a control unit 30 that controls the drive mechanism 23, the actuator 26, and the display 11.

  The control unit 30 is mainly configured by a microcomputer including a CPU and a memory such as a ROM and a RAM. The CPU is based on a program stored in the ROM, for example, and uses at least the electrocardiogram as a work area. Based on the input signals from the sensor 21 and the pulse wave sensor 22, biological numerical values such as a user's electrocardiogram, heartbeat, and pulse wave are calculated, and a biological display process for displaying the calculation result on the display 11 is executed.

  Further, the memory of the control unit 30 stores a positioning map representing the correlation between the position of the weight unit 15 (and the direction of gravity) in the three-axis slide unit 16 and the relative position of the display 11 with respect to the first housing 10. ing.

  Then, the CPU of the control unit 30 specifies the orientation of the user's face (face position) based on at least inputs from the camera 12, the acceleration sensor 24, and the gyro sensor 25, and the user's face in the first housing 10 is determined. The following display position changing process for changing the position of the display 11 to a position (specific position) included in a viewable area (viewable area) is executed.

[Display position change processing]
Here, the details of the display position change process will be described with reference to the flowchart of FIG. This process starts when the main body of the biometric apparatus 1 is turned on (on), and is repeatedly executed until this power is turned off. Note that it is assumed that the second housing 20 cannot be moved with respect to the first housing 10 by the stopper member 29 at the time of starting this processing.

  When this processing is started, in S110, the CPU of the control unit 30 performs image processing using a known pattern matching technique, so that the input image (captured image) from the camera 12 includes the user's face. If the determination is affirmative, the process proceeds to S120. If the determination is negative, the process proceeds to S150.

  In S120, based on the position of each part (eyes, nose, mouth, etc.) in the user's face, the contour of the face, etc. from the captured image determined to include the user's face in S110, the user Is recognized, and the process proceeds to S130.

In S130, the viewable area in the first housing 10 is estimated from the orientation of the user's face recognized in S120, and the process proceeds to S140.
In S140, in the viewable region estimated in S130, the distance that the user needs to move the face (the amount of movement of the face) because the orientation of the user's face becomes the direction of the biometric device 1 is the minimum distance (minimum). The position (viewing position) that only needs to be moved is specified (set), and the process proceeds to S180.

  On the other hand, in S <b> 150, which is performed when it is determined that the user's face is not included in the captured image in S <b> 110, the user tilts or shakes the biometric device 1 based on inputs from the acceleration sensor 24 and the gyro sensor 25. If the determination is affirmative, the process proceeds to S160. If the determination is negative, the first casing 10 is subjected to vibration. stand by.

  In S160, based on the inputs from the acceleration sensor 24 and the gyro sensor 25, the vibration direction (inclination direction of the biometric device 1) and acceleration (or angular velocity and rotation angle) of the first housing 10 are detected, and the detection results thereof. The position (the relative position of the display 11 with respect to the first housing 10) when the second housing 20 is moved with respect to the first housing 10 by the direction and the amount of rotation according to is set, and the process proceeds to S170.

  In S170, the braking of the second housing by the stopper member 29 is released via the actuator 26, and the positioning stored in the memory of the control unit 30 so that the display 11 moves to the relative position set in S160. Using the map, a control command specifying the position of the weight portion 15 in the three-axis slide portion 16 is output to the drive mechanism 23, and the process returns to S110. In the positioning map, the gravitational direction of the second housing 20 is detected based on the acceleration sensor 24, and the position of the weight portion 15 is uniquely determined from the gravitational direction and the relative position set in S160. ing.

  By repeatedly executing the processes of S110 to S170 in this way, the user's visual position in the first housing 10 (the set position in S140) is shifted to S180 when the user's visual position is set in S140. In the same manner as in S170, the control command for designating the position of the weight portion 15 in the triaxial slide portion 16 is output to the drive mechanism 23 so that the relative position of the display 11 is moved, and the process returns to S110. When the position of the display 11 reaches the visual recognition position by the drive mechanism 23, the braking force of the second housing 20 by the stopper member 29 is activated via the actuator 26 to fix the position of the display 11 so as not to move. To do.

[Effect of the first embodiment]
As described above, in the biometric apparatus 1 according to the present embodiment, a biological signal based on a user's contact operation with the electrode unit 14 and the optical element 18 is input from the biological sensor group 13, and a biological value is based on the biological signal. A biological display process for displaying the calculated result on the display 11 is performed, and a user's viewable area in the first housing 10 is estimated, and the position of the display 11 is changed to the user's viewable position included in this area. The display position changing process is executed.

  Therefore, according to the living body measurement apparatus 1, the display position of the display 11 is driven and controlled so that the calculation result of the living body numerical value is always displayed in the user's viewable area in the first housing 10, so that the user can Even when the posture is changed from a sitting state (see FIG. 5A) to a lying state at the time of the contact operation to the unit 14 and the optical element 18, for example, the display image does not leave the viewing position of the user. Usability for the user can be improved.

  Moreover, in the biometric apparatus 1, in the display position changing process, the orientation of the user's face is recognized based on the captured image of the camera 12, and the user can visually recognize the display 11 using this recognition result without moving the face as much as possible. The display position of the display 11 is driven and controlled with the position as the user's visual recognition position in the first housing.

  For this reason, according to the biometric apparatus 1, since the display position of the display 11 is automatically changed to a user's visual recognition position without moving a face so much, a user's operation burden can be further reduced. As a result, usability for the user can be further improved.

  Further, in the display position changing process, when the user's face cannot be recognized using the captured image of the camera 12, the acceleration sensor 24 and the gyro sensor 25 detect an operation of the user tilting or shaking the biometric device 1. The user's viewable area is estimated according to the user's operation, and the position of the display 11 is changed.

  For this reason, according to the biometric apparatus 1, the display position of the display 11 is automatically changed to the user's visual position by the user's intuitive operation, and therefore the camera 12 cannot recognize the orientation of the user's face. Even in such a case, the display position of the display 11 can be easily adjusted without imposing a complicated operation on the user.

[Correspondence with Invention]
In this embodiment, the display 11 is a display unit, the drive mechanism 23 is a drive unit, the control unit 30 that executes the process of S130 is a visual recognition area estimation unit, and the control unit 30 that executes the processes of S140 and S170 is a visual position setting. Means, the camera 12 is the imaging means, the control unit 30 that executes the processing of S110 and S120 is the face recognition means, the control unit 30 that executes the processing of S150 is the displacement detection means, the electrode unit 14 and the optical element 18 are the gripping unit, the heart The electric sensor 21 and the pulse wave sensor 22 correspond to an example of the biological signal detection means, and the control unit 30 that executes the biological display processing corresponds to an example of the biological display control means.

[Modification]
The display position changing process of the first embodiment is started when the power source of the main body of the biometric device 1 is turned on. However, the display position changing process is not limited to this. You may make it start, when it measures that a user's bioimpedance is measured based on an input (applied voltage, electric current value), and the area where the user is touching the electrode part is more than predetermined amount.

  In the display position change process of the first embodiment, the user's viewable area is estimated based on the captured image of the camera 12 and the input from the acceleration sensor 24 and the gyro sensor 25. However, the present invention is not limited to this. Is not to be done. For example, on the basis of an input (electrocardiogram signal) from the electrocardiographic sensor 21, the pair of electrode portions 14 in the first housing 10 respectively identify which of the user's left hand and right hand is in contact, and this identification The orientation of the user's face (and hence the visible region) may be estimated from the positional relationship between the electrode unit 14 and the user's hand (for example, the contact area with the electrode unit 14). In this case, the orientation of the display image on the display 11 may be changed in the vertical direction according to the estimated orientation of the user's face.

  The drive mechanism 23 of the first embodiment is configured such that the second housing 20 can rotate 360 degrees with respect to the first housing 10 about three axes (X axis, Y axis, Z axis). However, it is not limited to this.

  For example, as shown in FIG. 6A, even if the display 11 is configured to be able to rotate 360 degrees with respect to the first housing 10 around one of the X axis, the Y axis, and the Z axis. Good. In this case, instead of the three-axis slide part 16, for example, an annular slide part 36 that rotates and displaces the second casing 20 around the one axis with respect to the first casing 10 is provided. What is necessary is just to be connected to the 1st housing | casing 10 along the said 1 axial direction (not shown). Further, a weight portion 35 for aligning the one axis with the direction of gravity may be provided inside the second housing 20 so that the inclination direction of the display 11 is the direction of the user's face.

  Alternatively, as shown in FIG. 6B, the drive mechanism 23 is provided with an angle stage 37 for displacing the tilt direction of the display 11 and a rotary stage 38 for rotating the display 11 in the left-right direction. A configuration in which the stages 37 and 38 are driven and controlled in accordance with commands from the control unit 30 may be employed. In this case, the display 11 can move only the hemispherical portion of the first housing 10, but the orientation of the display 11 can be adjusted with high accuracy.

  Moreover, although the camera 12 of the said 1st Embodiment is integrally provided with the display 11 in the plane part 20b of the 2nd housing | casing 20, it is not limited to this, For example, as shown in FIG. Further, a configuration may be adopted in which a plurality of images are taken on the outer surface of the first housing 10 so as to capture images in each direction on the outer side of the first housing 10. In this case, the user's face can be surely recognized by any of the plurality of cameras 12. Alternatively, instead of the camera 12, a temperature sensor 39 that detects the ambient temperature may be provided, and the position of the human body that is considered to be high in temperature may be estimated as the position of the user's face.

[Second Embodiment]
Next, a portable game machine as a second embodiment to which the portable display device of the present invention is applied will be described with reference to the drawings. In addition, about the same structure as 1st Embodiment, the detailed description is abbreviate | omitted by attaching | subjecting the same drawing number.

  The portable game machine 2 according to the present embodiment is designed to have a size and weight that can be carried by a measurer (user), and is a device for performing a sensation-type game such as an action game or a shooting game. As shown in FIG. 8, the display 11 displays a game image corresponding to the user's operation, the camera 12, and a pair of grip portions 43 gripped by the user.

  The grip portion 43 has a shape that can be easily gripped by the user, and is provided one by one on the side surfaces facing each other in the first housing 10. And a pair of holding part 43 is being fixed to the outer peripheral surface of the 1st housing | casing 10 by the connection member 44 connected in arch shape. In addition, the grip portion 43 is provided with an operation portion 45 that is composed of a push button switch or a cross key and for inputting user operation details.

In addition, since the structure of the 1st housing | casing 10, the 2nd housing | casing 20, and the drive mechanism 23 is the same as 1st Embodiment, the detailed description is abbreviate | omitted.
Further, as shown in FIG. 9, the portable game machine 2 of the present embodiment performs various processes based on input signals from the acceleration sensor 24, the gyro sensor 25, the camera, and the operation unit 45, and the drive mechanism 23 and the display 11. The control part 30 which performs control of is provided.

  The control unit 30 according to the present embodiment executes a game display process for causing the display 11 to display at least a game image corresponding to an input signal from the operation unit 45 based on, for example, a bodily sensation game program. The game program may be distributed via a communication network or may be provided by a portable storage device. For this reason, the portable game machine 2 of this embodiment further includes a communication unit 46 connected to a communication network and an external connection unit 47 connected to a portable storage device.

  Further, the memory of the control unit 30 stores a positioning map representing the correlation between the position of the weight unit 15 (and the direction of gravity) in the three-axis slide unit 16 and the relative position of the display 11 with respect to the first housing 10. ing.

  Then, the CPU of the control unit 30 uses an initial position setting process for setting an initial position of the display 11 based on at least inputs from the acceleration sensor 24 and the gyro sensor 25, and further uses a captured image of the camera 12 to display the display 11. Display position correction processing for correcting the position is executed.

[Initial position setting processing]
First, details of the initial position setting process will be described with reference to the flowchart of FIG. This process is started before the game program is started (for example, before the game display process is executed) when the main body of the portable game machine 2 is turned on.

  When this process is started, in S210, based on the input signal from the operation unit 45, the CPU of the control unit has input a cross key signal indicating the pressing direction and pressing time of the cross key of the operation unit 45. If the determination is affirmative, the process proceeds to S240. If the determination is negative, the process proceeds to S220.

  In S220, based on the input signals from the acceleration sensor 24 and the gyro sensor 25, whether or not the first casing 10 (or the grip portion 43) is vibrated by the user tilting or shaking the portable game machine 2 is determined. If the determination is affirmative, the process proceeds to S250. If the determination is negative, the process proceeds to S230.

  In S230, based on the input signal from the operation unit 45, it is determined whether or not the push button switch of the operation unit 45 is pressed as an operation for the user to determine the initial position of the display 11, and an affirmative determination is made here. If yes, the process proceeds to S260. If a negative determination is made, the process returns to S210.

  In S240, based on the cross key signal input in S210, the second casing 20 is moved relative to the first casing 10 by the amount of rotation corresponding to the pressing time in the pressing direction of the cross key. By a method similar to S170, a control command for designating the position of the weight portion 15 in the triaxial slide portion 16 is output to the drive mechanism 23, and the process returns to S210.

  In S250, based on the signals from the acceleration sensor 24 and the gyro sensor 25 input in S220, the vibration direction (inclination direction of the portable game machine 2) and acceleration (or the acceleration of the portable game machine 2) and / or acceleration (or (Angular velocity and rotation angle) is detected, and the position of the weight portion 15 in the triaxial slide portion 16 is determined by a method similar to S170 so that the second housing 20 moves by the direction and the amount of rotation according to the detection result. The designated control command is output to the drive mechanism 23, and the process returns to S210.

  In S260, the initial position of the display 11 determined by the user in S220 (in other words, the relative position of the second housing 20 with respect to the first housing 10) is stored in the memory of the control unit 30, and the present process ends. To do.

[Display position correction processing]
Next, details of the display position correction processing will be described with reference to the flowchart of FIG. This process is started after the end of the initial position setting process, for example, when the game display process is executed.

  When this process is started, in S310, the user tilts or shakes the portable game machine 2 based on the input signals from the acceleration sensor 24 and the gyro sensor 25, so that the first casing 10 (or the gripping unit 43). ) Is subjected to vibration, and if affirmative determination is made here, the process proceeds to S320, and if negative determination is performed, the process proceeds to S330.

  In S320, based on the signals from the acceleration sensor 24 and the gyro sensor 25 input in S310, the vibration direction (inclination direction of the portable game machine 2) and acceleration (or the acceleration of the portable game machine 2) of the first housing 10 (or the grip portion 43). (Angular velocity and rotation angle) is detected, and the three-axis slide is performed in the same manner as in S170 so that the second housing 20 moves by the amount of rotation corresponding to the detection result in the direction opposite to the direction corresponding to the detection result. A control command designating the position of the weight portion 15 in the portion 16 is output to the drive mechanism 23, and the process proceeds to S330.

  In S330, the amount of deviation (and the direction) between a predetermined position (for example, the upper position of the central portion) in the input image (captured image) from the camera 12 and the position of the user's face is used using a known image processing technique. After calculating, the process proceeds to S340.

  In S340, the three-axis slide is performed in the same manner as in S170 so that the second casing 20 (and thus the display 11) moves relative to the first casing 10 by the amount of deviation (and its direction) calculated in S330. A control command specifying the position of the weight portion 15 in the portion 16 is output to the drive mechanism 23, and the process returns to S310.

[Effects of Second Embodiment]
As described above, in the portable game machine 2 of the present embodiment, the user's operation content is input from the operation unit 4, and the game display process for displaying the game image reflecting the operation content on the display 11 is performed. An operation in which the user tilts or shakes the portable game machine 2 is detected by the acceleration sensor 24 and the gyro sensor 25, and the display 11 is displayed at a viewing position included in the user's viewable area in the first housing 10 based on the detection result. The process of changing the position of is executed.

  Specifically, in the portable game machine 2, in the display position correction process, the vibration direction and acceleration (or angular velocity and rotation angle) of the grip portion 43 are detected based on input signals from the acceleration sensor 24 and the gyro sensor 25. Then, drive control is performed in which the second casing 20 is moved relative to the first casing 10 by the rotation amount in the direction opposite to the direction according to the detection result.

  Therefore, according to the portable game machine 2, for example, no matter how the user moves the grip portion 43 (the operation unit 45) during the play of the bodily sensation-type game, it is always within the user's viewable area in the first housing 10. Since the display position of the display 11 is driven and controlled so that the game image is displayed on the screen, the user can move the operation unit 45 without worrying about the position of the display 11, thereby improving the usability for the user. be able to.

  In the portable game machine 2, in the initial position setting process, not only the user's key operation but also the vibration direction and acceleration (or angular velocity and rotation) of the grip portion 43 based on input signals from the acceleration sensor 24 and the gyro sensor 25. Corner) and the second housing 20 is moved relative to the first housing 10 by a direction and a rotation amount according to the detection result.

  For this reason, according to the portable game machine 2, since the initial position of the display 11 is changed by an intuitive operation by the user, the initial position of the display 11 can be easily adjusted without necessarily imposing a complicated operation on the user. can do.

  Furthermore, in the portable game machine 2, in the display position correction process, the position of the user's face is recognized based on the image captured by the camera 12, and the amount of deviation of the position of the user's face with respect to the game image is calculated using this recognition result. Since the drive control for correcting the deviation amount is performed, the display position of the display 11 can always be adjusted to the position where the user can easily see.

[Modification]
In the portable game machine 2 of the second embodiment, the display 11 is provided integrally with the second housing 20, but the display 11 is not limited to this. For example, as shown in FIG. The smartphone 3 may be configured to be attachable to the second housing 20. In this case, the smart phone executes game display processing on its own display 11 and is configured to be communicable with the communication unit 46 (see FIG. 9) of the portable game machine 2, and is transmitted from the communication unit 46. It is desirable to receive an input signal from the operation unit 45 of the machine 2 and display a game image corresponding to the received signal on the display 11. In this case, the first housing 10 may be disposed so as to cover a part of the second housing 20.

[Other Embodiments]
As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, In the range which does not deviate from the summary of this invention, it is possible to implement in various aspects.

  First, in the biometric device 1 and the portable game machine 2 of the above-described embodiment, the position of the display 11 is moved by moving the relative position of the second housing 20 with respect to the first housing 10 using the drive mechanism 23. As a result, the display position of the display 11 is changed, but the present invention is not limited to this configuration.

  For example, as shown in FIG. 13A, a plurality of displays 11 are fixed and arranged with respect to the first housing 10, and various sensors (for example, a camera 12, a temperature sensor 39, an acceleration, etc.) among the plurality of displays 11. The display 11 located in the user's viewable area estimated based on the input from the sensor 24, the gyro sensor 25, etc.) may be selected and an image may be displayed on the selected display.

  Further, as shown in FIG. 13B, a sheet-like display 11 is fixed and arranged so as to cover the outer peripheral surface of the first housing 10, and the various sensors among the plurality of display areas in the display 11 are arranged. The display area located in the user's viewable area estimated based on the input from may be selected, and an image may be displayed on the selected display area. In this case, the shape of the first housing 10 is not limited to a spherical shape, and may be any shape such as a cube or a rectangular parallelepiped as shown in FIG. For example, as shown in FIGS. 14 (a) and 14 (b), when the shape of the first housing 10 is a plate, the display 11 is fixed and arranged on the front and back surfaces, A configuration may be adopted in which the display 11 located in the user's viewable area estimated based on the input from the various sensors is selected and an image is displayed on the selected display.

  DESCRIPTION OF SYMBOLS 1 ... Biometric apparatus, 2 ... Portable game machine, 3 ... Smartphone, 4 ... Operation part, 10 ... 1st housing | casing, 11 ... Display, 12 ... Camera, 13 ... Biosensor group, 14 ... Electrode part, 14a ... Application Electrode, 14b ... reference electrode, 15 ... weight part, 16 ... triaxial slide part, 17 ... connecting part, 18 ... optical element, 20 ... second housing, 20a ... spherical part, 20b ... flat part, 21 ... electrocardiogram Sensor, 22 ... Pulse wave sensor, 23 ... Drive mechanism, 24 ... Acceleration sensor, 25 ... Gyro sensor, 26 ... Actuator, 28 ... Roller member, 29 ... Stopper member, 30 ... Control part, 35 ... Weight part, 36 ... Ring Slide part 37 ... Angle stage 38 ... Rotation stage 39 ... Temperature sensor 43 ... Holding part 44 ... Connecting member 45 ... Operating part 46 ... Communication part 47 ... External connection part

Claims (9)

A display unit that is provided in the housing and displays an image based on a user operation;
Drive means for changing the position of the display unit in the housing to a preset viewing position;
A visual recognition area estimating means for estimating a visual recognition possible area of the user in the housing;
A viewing position setting unit that sets a specific position included in the viewable region estimated by the viewing region estimation unit as the viewing position;
A portable display device comprising:   The portable display device according to claim 1, wherein the visual recognition area estimation unit estimates the visual recognition area according to an operation of the user. Imaging means for capturing an image in a predetermined direction outside the housing;
Face recognition means for recognizing the orientation of the user's face from the image taken by the imaging means;
With
The portable display device according to claim 1, wherein the visual recognition area estimation unit estimates the visual recognition area based on a face orientation recognized by the face recognition unit.   The portable display device according to claim 3, wherein the imaging unit is provided integrally with the display unit. A pair of grip portions provided in the housing and gripped by the user;
A displacement detecting means for detecting a displacement of at least one of the grip portion and the housing with respect to the specific position;
With
5. The portable display device according to claim 1, wherein the visual recognition position setting unit variably sets the visual recognition position based on a displacement detected by the displacement detection unit. . The casing provided with the grip portion is a first casing, and the casing provided with the display portion is a second casing.
The first casing is made of a transparent or translucent material, and is disposed so as to cover the second casing.
The driving means has a moving mechanism that moves the position of the second housing relative to the first housing, and causes the moving mechanism to change the position of the display unit to the visual recognition position. The portable display device according to claim 5, wherein drive control is performed. The outer peripheral surface and the inner peripheral surface of the first housing are formed in a spherical shape,
The portable display device according to claim 6, wherein the second housing includes a spherical portion that moves along an inner peripheral surface of the first housing. A biological signal detection means provided on the grasping portion for detecting a biological signal representing the pulse wave or electrocardiogram of the user;
Biological display control means for displaying the detection result by the biological signal detection means on the display unit;
The portable display device according to any one of claims 5 to 7, further comprising: Provided with a biological signal detection means for detecting a biological signal representing the electrocardiogram of the user provided in the grip portion;
The grip portion is provided on the side surfaces facing each other in the housing,
The visual recognition area estimation means identifies the grip position by the user's left hand and right hand in the housing based on the detection result by the biological signal detection means, and determines the visual recognition area based on the identified grip position. The portable display device according to claim 5, wherein the portable display device is estimated.