JP2013074324A - Head-mounted display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a head-mounted display device convenient to use.SOLUTION: A head-mounted display device 1 comprises: a display 2 for emitting image light; a mounted unit 5 mounted to the head of an observer; and a connection unit 10 for detachably connecting the display 2 to the mounted unit 5. The connection unit 10 comprises: a display-side connection member 9 provided at the display 2; and a mounted-side connection member 53 provided at the mounted unit 5. The display-side connection member 9 and the mounted-side connection member 53 magnetically connects the display 2 to the mounted unit 5.

Description

  The present invention relates to a head-mounted display device mounted on an observer's head.

Conventionally, there has been proposed a head-mounted display device that allows an observer to observe an image formed by a display element such as an LCD (Liquid Crystal Display) using an optical system (see, for example, Patent Document 1).
The head-mounted display device described in Patent Literature 1 includes a support arm that supports the display unit and a support body that is mounted on the observer's head, and the support arm is inserted into a socket provided on the support body. As a result, the display unit is detachably supported by the support.

Japanese Patent Laid-Open No. 10-75408

  However, in the head-mounted display device described in Patent Document 1, the support arm is provided with a drop-out preventing claw, and in order to remove the display unit from the support, the drop-out prevention claw is pushed back. However, it is necessary to pull out the support arm from the socket of the support. For this reason, it takes time to remove the display unit, and there is a problem that the observer feels bothersome.

  An object of the present invention is to provide a head-mounted display device that can improve the feeling of use.

  The head-mounted display device of the present invention includes a display unit that emits image light, a mounting unit that is mounted on the observer's head, and a connection unit that detachably connects the display unit to the mounting unit. The connection unit includes a display unit side connection member provided in the display unit and a mounting unit side connection member provided in the mounting unit, the display unit side connection member and the mounting unit side connection member Is characterized in that the display part is connected to the mounting part by magnetic force.

In the present invention, the display unit side connecting member provided in the display unit and the mounting unit side connecting member provided in the mounting unit connect the display unit to the mounting unit by magnetic force.
As a result, when the display unit side connecting member and the mounting unit side connecting member are brought close to each other, the display unit can be connected to the mounting unit by magnetic force, and the display unit side connecting member and the mounting unit side connecting member can be separated. In this case, the display unit can be removed from the mounting unit. Therefore, the display unit can be easily attached and detached, so that the observer does not feel bothersome and the usability of the head-mounted display device can be improved.

  In the head-mounted display device according to the aspect of the invention, the connection unit may be configured such that, when the head-mounted display device is mounted, the display unit and the mounting unit are centered on the connection unit at least in the vertical direction and the horizontal direction. It is preferable to be provided so as to be relatively rotatable in two directions.

  In the present invention, the connecting portion is provided so that the display portion and the mounting portion can be rotated relative to each other in two directions, the vertical direction and the horizontal direction, so that the head-mounted display device is mounted in these two directions. The display unit can be rotated. For this reason, since a display part can be position-adjusted to an up-down direction and a horizontal direction, a usability | use_condition can be improved more.

  In the head-mounted display device according to the aspect of the invention, it is preferable that the connection portion includes a restriction portion that restricts the relative rotation in the vertical direction, and the relative rotation in the horizontal direction is allowed.

By the way, when the connection unit is configured so that the display unit can be rotated in the vertical direction relative to the mounting unit, the display unit may be displaced in the vertical direction due to the weight of the display unit or the movement of the observer. . In this case, the display unit hits the face of the observer, giving an unpleasant feeling to the observer.
In the present invention, since the connecting portion includes a restricting portion that restricts relative rotation in the vertical direction, the display portion can be prevented from being displaced in the vertical direction. For this reason, since the display unit does not hit the observer's face and the observer is not uncomfortable, the usability of the head-mounted display device can be further improved.

  In the head-mounted display device of the present invention, the restricting portion includes a groove provided in one of the display portion side connecting member and the mounting portion side connecting member in a horizontal direction, the display portion side connecting member, and It is preferable to include a rib provided on the other of the mounting portion side connection members and locked in the groove.

  In the present invention, the restricting portion includes a groove provided in one of the display portion side connecting member and the mounting portion side connecting member in the horizontal direction, and a rib provided in the other and locked to the groove. The restricting portion can be provided with a simple configuration of grooves and ribs.

  In the head-mounted display device of the present invention, the connection portion extends from one of the display portion side connection member and the attachment portion side connection member to the other side, and a second restriction covers a part of the other portion. It is preferable to provide the part.

  In the present invention, since the second restricting portion that extends from one of the display unit side connecting member and the mounting unit side connecting member to the other side and covers the other part is provided, the display unit side connecting member is mounted. When trying to move in the direction in which the connection is released with respect to the part-side connecting member, the other of the display part-side connecting member and the mounting part-side connecting member comes into contact with the second restricting part, and the movement is restricted. . For this reason, it can suppress that the connection of a display part and a mounting part is cancelled | released carelessly.

  In the head-mounted display device of the present invention, the connection unit includes a suction force adjustment member provided between the display unit side connection member and the mounting unit side connection member, and the suction force adjustment member includes: It is preferable that the distance between the display unit side connecting member and the mounting unit side connecting member is adjustable.

In the present invention, since the connecting portion includes a suction force adjusting member capable of adjusting the distance between the display portion side connecting member and the mounting portion side connecting member, the distance between the display portion and the mounting portion is adjusted by the suction force adjusting member. Can be adjusted. For this reason, the attractive force by the magnetic force between a display part and a mounting part can be adjusted, and the strength of the connection of the display part with respect to a mounting part can be adjusted.
In other words, when the display unit is connected to the mounting unit with a reduced suction force, the display unit is weakly connected to the mounting unit, so the display unit can be easily detached from the mounting unit, and the display unit can be attached and detached. Can be easily performed. On the other hand, when the display unit is connected to the mounting unit in a state where the suction force is increased, the display unit is more strongly connected to the mounting unit, so that the display unit can be prevented from moving.

  In the head-mounted display device of the present invention, one of the display unit side connecting member and the mounting unit side connecting member is provided with a spiral groove, and the suction force adjusting member includes the display unit. It is preferable that a groove to be screwed with the groove of the side connection member is provided.

In the present invention, one of the display unit side connecting member and the mounting unit side connecting member is provided with a spiral groove, and the suction force adjusting member has a groove screwed with the groove of the display unit side connecting member. Accordingly, the suction force adjusting member is rotated in a state where the suction force adjusting member is screwed to one of the display unit side connecting member and the mounting unit side connecting member, thereby sucking the one of the display unit side connecting member and the mounting unit side connecting member. The space | interval with a force adjustment member changes and the space | interval of a display part side connection member and a mounting part side connection member can be adjusted. For this reason, the distance between the display unit and the mounting unit can be easily adjusted, and the strength of the connection between the display unit and the mounting unit by the magnetic force can be easily adjusted.

  In the head-mounted display device of the present invention, at least one of the display unit side connecting member and the mounting unit side connecting member includes a magnet, and the display unit is connected to the mounting unit by the magnetic force of the magnet. Is preferred.

  In the present invention, since at least one of the display unit side connecting member and the mounting unit side connecting member includes a magnet, a magnetic force can be generated with a simple configuration. For this reason, the structure of a connection part can be simplified.

The figure which shows the mounting state of the head mounted display apparatus in 1st Embodiment. The perspective view which shows the external appearance of a head mounting type display apparatus. The figure which shows the structure of the display part of a head mounting | wearing type display apparatus. The perspective view which shows the structure of the connection part of a head mounting | wearing type display apparatus. Sectional drawing of the connection part of a head mounting | wearing type display apparatus. The perspective view which shows the structure of the connection part of the head mounted display apparatus in 2nd Embodiment. The figure which shows the structure of the connection part of the head mounted display apparatus in 3rd Embodiment. The figure which shows the structure of the connection part of the head mounted display apparatus in a modification. The figure which shows the structure of the connection part of the head mounted display apparatus in another modification.

[First Embodiment]
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment of the invention will be described with reference to the drawings.
[1. Configuration of head mounted display device]
FIG. 1 is a diagram showing a wearing state of the head-mounted display device 1.
FIG. 2 is a perspective view showing an appearance of the head-mounted display device.
In FIGS. 1 and 2, for convenience of explanation, an axis parallel to an optical axis Ax (FIG. 3) of a projection lens 71, which will be described later, is taken as a Z axis, and a horizontal axis perpendicular to the Z axis is taken as an X axis and a Z axis. An orthogonal vertical axis is defined as a Y axis. The same applies to the subsequent figures. Further, in the Z axis, the observer side is defined as the + Z axis side, and the side away from the observer is defined as the −Z axis side.

As shown in FIGS. 1 and 2, the head-mounted display device 1 is a monocular head-mounted display that displays an image on either the left or right eye, and the head-mounted display device 1 is mounted. Make the observer recognize the image light. Further, the head-mounted display device 1 of the present embodiment is configured by a see-through type virtual image display device capable of observing an external image with see-through.
The head-mounted display device 1 includes a display unit 2, a light guide plate 3 (FIG. 3) as a light guide unit, a rim 4 that holds the light guide plate 3, and a mounting unit 5.
The display unit 2 can be connected to the mounting unit 5 on either the side corresponding to the right eye of the observer or the side corresponding to the left eye. In the following, the display unit 2 is mounted on the side corresponding to the left eye of the observer. The case where it connects to the part 5 is demonstrated.

[2. Display configuration
FIG. 3 is a diagram illustrating a configuration of the display unit 2 of the head-mounted display device 1.
FIG. 4 is a perspective view illustrating a configuration of the connection unit 10 of the head-mounted display device 1.
The display unit 2 is a part that forms and projects image light, and includes a display element 6, a projection optical device 7, a frame 8, and a display unit side connection member 9, as shown in FIG. 3.
The display element 6 includes a transmissive liquid crystal display device 61 that modulates incident light to form image light, and an LED that is attached to the light incident side of the liquid crystal display device 61 and emits light to the liquid crystal display device 61. And a backlight 62 such as (Light Emitting Diode).
The projection optical device 7 includes a projection lens 71 that projects image light emitted from the display element 6 as parallel light, and a lens barrel 72 that houses the projection lens 71 therein. The projection optical device 7 is fixed to the rim 4, and the projection lens 71 is fixed to the light guide plate 3 via the lens barrel 72 and the rim 4. Thereby, the projection lens 71 is configured not to be displaced with respect to the light guide plate 3.

The frame 8 includes a wide portion 81 and a narrow portion 82.
The wide portion 81 is provided on the base end side (light guide plate 3 side) of the frame 8. The wide portion 81 is hollow inside, and the display element 6 and the projection optical device 7 are accommodated in the hollow portion. In the present embodiment, the projection optical device 7 and the display element 6 are arranged in order in the frame 8 from the light guide plate 3 side toward the distal end side of the frame 8.
The narrow portion 82 is provided on the front end side of the frame 8, that is, on the opposite side of the light guide plate 3 across the wide portion 81, and the display portion side connecting member 9 is supported by the narrow portion 82.

  As shown in FIG. 4, the display unit side connecting member 9 is composed of an iron member formed in a triangular pyramid shape. The display portion side connecting member 9 is provided with a plurality of ribs 91 from the bottom surface portion 92 side toward the apex. The plurality of ribs 91 are arranged at equal intervals. The display unit side connecting member 9 is provided on the + X axis side of the narrow portion 82, and the bottom surface portion 92 is supported by the narrow portion 82 so as to be rotatable around an axis 93 orthogonal to the optical axis Ax.

[3. Configuration of light guide plate]
The light guide plate 3 is made of a light-transmitting resin material or the like, takes in the image light projected from the display unit 2 and then guides it to a predetermined external position (the left or right eye of the observer). As shown in FIG. 3, the light guide plate 3 is formed in a substantially isosceles trapezoid shape when viewed from the direction along the Y axis.
The light guide plate 3 includes a light incident surface 31, a first reflection surface 32, a first total reflection surface 33, a second total reflection surface 34, a second reflection surface 35, and a light emission surface 36. Is formed.

  The first reflecting surface 32 is formed by forming a film such as aluminum vapor deposition on a flat inclined surface facing the light incident surface 31 and inclined with respect to the XY plane, and the light guide plate 3 through the light incident surface 31. The image light captured inside is reflected toward the first total reflection surface 33.

The first total reflection surface 33 is configured by a plane obtained by extending the light incident surface 31 (parallel to the XY plane (perpendicular to the optical axis Ax)), and is located on the + Z axis side.
The second total reflection surface 34 is formed in a flat shape parallel to the first total reflection surface 33 and is located on the −Z axis side.
Then, the image light reflected by the first reflecting surface 32 is separated from the light incident surface 31 and the first reflecting surface 32 by the total reflection on the first and second total reflecting surfaces 33 and 34 (the other side). To the light guide plate 3 side).

  The first and second total reflection surfaces 33 and 34 are not limited to those in which image light is totally reflected and guided by the interface with the air without providing a mirror or a half mirror on the surface. (2) It also includes reflection formed by forming a mirror coat or a half mirror film on the whole or a part of the total reflection surfaces 33 and 34. For example, after the incident angle of the image light satisfies the total reflection condition, the entire first or second total reflection surface 33, 34 is mirror coated or the like to reflect substantially all the image light. It is also included in the case of Moreover, as long as image light with sufficient brightness can be obtained, the whole or part of the first and second total reflection surfaces 33 and 34 may be coated with a somewhat transmissive mirror.

The second reflecting surface 35 is formed in a flat shape that faces the light emitting surface 36 and is inclined with respect to the XY plane, and reflects the image light guided by the first and second total reflecting surfaces 33 and 34 by reflection. The light is guided from the emission surface 36 to a predetermined external position (observer's left eye or right eye). The second reflecting surface 35 is configured by a half mirror or the like, and is configured to reflect image light and to transmit an external image.
In addition, as long as it has a function to guide the image light guided by the first and second total reflection surfaces 33 and 34 to a predetermined external position, the polarization beam is not limited to the second reflection surface 35 such as a half mirror. A splitter, a hologram diffraction grating, or the like may be employed.

[4. Configuration of mounting part)
The mounting unit 5 is a part that is mounted on the head of the observer, and supports the display unit 2 in a detachable manner while mounted on the head.
As shown in FIG. 4, the mounting portion 5 includes a neckband 51, a control device 52 (FIG. 2), and a mounting portion side connection member 53.

  The neckband 51 is made of a resin material, a metal material, or the like, and has a shape along the back of the head from one ear to the other ear of the observer. A control device 52 and a mounting portion side connection member 53 are fixed to the neckband 51.

  The control device 52 includes an arithmetic device such as a CPU (Central Processing Unit) and a storage device such as a memory. The control device 52 drives the display element 6 based on the image data stored in the storage device, and causes the display element 6 to form image light based on the image data.

As shown in FIGS. 4 and 5, the mounting portion side connection member 53 is configured by a magnet formed in a columnar shape, and is provided in a pair corresponding to the left ear and the right ear of the observer. The pair of mounting portion side connection members 53 are provided with a conical recess 531 on a surface 535 opposite to the opposing surfaces, and the recess 531 is provided with a plurality of grooves 532 toward the apex. Yes. The plurality of grooves 532 are arranged at equal intervals at positions corresponding to the ribs 91 of the display unit side connecting member 9.
Further, the mounting portion side connecting member 53 is provided with a protruding portion 536 as a second restricting portion protruding to the display portion side connecting member 9 side. The overhanging portion 536 is formed on the upper portion of the attachment portion side connection member 53 from the front side to the rear side with the attachment portion 5 attached, and the distal end portion 537 in the overhang direction is bent toward the surface 535 side. doing.

In the mounting portion 5 described above, the display portion side connection member 9 is fitted in the recess 531 of the mounting portion side connection member 53, and the rib 91 of the display portion side connection member 9 is locked in the groove 532 of the recess 531. . At this time, due to the magnetic force of the display unit side connection member 9, an attractive force or an adsorption force acts between the display unit side connection member 9 and the mounting unit side connection member 53. Thereby, the display unit side connecting member 9 is locked to the mounting unit side connecting member 53, and the display unit 2 is connected to the mounting unit 5 via the display unit side connecting member 9 and the mounting unit side connecting member 53.
That is, the connection part 10 of this embodiment is comprised by the mounting part side connection member 53 and the display part side connection member 9. FIG.

  Here, the display unit side connecting member 9 is supported by the frame 8 so as to be rotatable around the shaft 93. For this reason, the display unit 2 can rotate in the horizontal direction with respect to the mounting unit 5 in a state where the head-mounted display device 1 is mounted. Further, since the display unit side connection member 9 is formed in a triangular pyramid shape and is fitted in the recess 531 of the mounting unit side connection member 53 in the horizontal direction, the display unit side connection member 9 is attached to the mounting unit side connection member. If it is removed from 53, the display part 2 can be rotated in the up-down direction with respect to the mounting part 5. That is, the connection unit 10 is provided so that the display unit 2 and the mounting unit 5 can be rotated relative to each other in the vertical and horizontal directions around the connection unit 10 when the head-mounted display device 1 is mounted.

In addition, when the display unit side connecting member 9 is fitted into the recess 531 of the mounting unit side connecting member 53, the rib 91 of the display unit side connecting member 9 is locked in the groove 532 of the recess 531. Thereby, the rotation of the display unit side connection member 9 with respect to the mounting unit side connection member 53 is restricted, and the rotation of the display unit 2 with respect to the mounting unit 5 in the vertical direction is restricted.
That is, the first restricting portion of the present embodiment is configured by the rib 91 of the display unit side connecting member 9 and the groove 532 of the concave portion 531 of the mounting unit side connecting member 53.

  Further, the overhang portion 536 is formed on the upper portion of the mounting portion side connection member 53 from the front side toward the rear side, and the display portion side connection member 9 is fitted in the concave portion 531 of the mounting portion side connection member 53. In this state, the distal end portion 537 covers a part of the mounting portion side connecting member 53. For this reason, for example, when the display unit 2 attempts to rotate downward about the display unit side connection member 9 due to its own weight or impact, the display unit side connection member 9 contacts the distal end unit 537 at the upper portion of the overhang portion 536. Touch. Accordingly, the overhanging portion 536 restricts the display unit side connecting member 9 from rotating downward, and suppresses the display unit side connecting member 9 from being inadvertently detached from the concave portion 531 of the mounting unit side connecting member 53. .

Further, when the display unit 2 tries to rotate to the viewer side around the display unit side connection member 9 due to an impact or the like when the light guide plate 3 hits an object, the display unit side connection member 9 is The rear portion of 536 abuts on the tip 537. Thereby, the overhang | projection part 536 controls that the display part side connection member 9 rotates to the observer side, and prevents that the display part 2 remove | deviates from the direction of an observer's eyes.
When the display unit 2 is connected to the mounting unit 5, the display unit side connecting member 9 is obliquely fitted toward the concave portion 531 of the mounting unit side connecting member 53, thereby displaying the display unit as shown in FIG. 5. The side connection member 9 is fitted into the recess 531, and the display unit 2 is connected to the mounting unit 5.

The embodiment described above has the following effects.
In the present embodiment, the display unit side connecting member 9 provided in the display unit 2 and the mounting unit side connecting member 53 provided in the mounting unit 5 connect the display unit 2 to the mounting unit 5 by magnetic force.
Thus, if the display unit side connecting member 9 and the mounting unit side connecting member 53 are brought close to each other, the display unit 2 can be connected to the mounting unit 5 by magnetic force, and the display unit side connecting member 9 and the mounting unit side connection are connected. If the member 53 is separated, the display unit 2 can be detached from the mounting unit 5. Accordingly, since the display unit 2 can be easily attached and detached, the feeling of use of the head-mounted display device 1 can be improved without causing the observer to feel bothered.

  In the present embodiment, the connection unit 10 is provided so that the display unit 2 and the mounting unit 5 can be relatively rotated in two directions, the vertical direction and the horizontal direction, so that the head-mounted display device 1 is mounted. The display unit can be rotated in these two directions. For this reason, since the display part 2 can be position-adjusted to an up-down direction and a horizontal direction, a usability | use_condition can be improved more.

By the way, when the connection unit 10 is configured so that the display unit 2 can be rotated relative to the mounting unit 5 in the vertical direction, the display unit 2 is displaced in the vertical direction due to the weight of the display unit 2 or the movement of the observer. It is possible that In this case, the display unit 2 hits the face of the observer, giving the observer an uncomfortable feeling.
In this embodiment, since the connection part 10 is provided with the control part which controls the relative rotation of an up-down direction, it can prevent that the display part 2 shifts in a vertical direction. For this reason, since the display part 2 does not hit an observer's face and an observer does not feel discomfort, the usability of the head-mounted display device 1 can be further improved.

  In the present embodiment, the restricting portion is configured by the groove 532 provided in the mounting portion side connecting member 53 in the horizontal direction and the rib 91 provided in the display portion side connecting member 9. The restricting portion can be provided with a simple configuration.

  In the present embodiment, since the overhanging portion 536 that extends from the mounting portion side connecting member 53 to the display portion side connecting member 9 side and covers a part of the display portion side connecting member 9 is provided, the display portion side connecting member When 9 is about to move in the direction in which the connection with respect to the mounting portion side connecting member 53 is released, the display portion side connecting member 9 comes into contact with the overhang portion 536 and the movement of the display portion side connecting member 9 is restricted. The For this reason, it can suppress that the connection of the display part 2 and the mounting part 5 is cancelled | released carelessly.

  In this embodiment, since the display part side connection member 9 is comprised with the magnet, magnetic force can be generated with a simple structure. For this reason, the structure of the connection part 10 can be simplified.

[Second Embodiment]
Next, 2nd Embodiment of this invention is described based on drawing.
In the following description, the same structure and the same members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted or simplified.
FIG. 6 is a diagram illustrating a configuration of the connection unit 10A of the head-mounted display device 1A according to the second embodiment.
In the present embodiment, the configuration of the connecting portion 10A is different from that of the first embodiment as shown in FIG. Other configurations are the same as those in the first embodiment.

Specifically, the connecting portion 10A includes a display portion side connecting member 9A, a mounting portion side connecting member 53A, and a spacer 11A as a suction force adjusting member.
The display part side connecting member 9A is made of a columnar iron member, and is provided so as to protrude toward the + X axis side of the frame 8 of the display part 2. The display unit side connecting member 9A is rotatably supported on the frame 8 by a rotating shaft 97A, and is configured to be rotatable with respect to the frame 8 by rotating a dial 98A. A spiral groove 94A is formed on the outer periphery of the display unit side connecting member 9A.

The mounting portion side connection member 53A is made of a magnet and is provided in a pair corresponding to the left ear and right ear of the observer. The pair of mounting portion side connection members 53A is provided with a spherical concave portion 531A on the surface opposite to the opposing surface.
The spacer 11A is made of a nonmagnetic material such as a resin. The spacer 11A is formed in a cylindrical shape whose one end is closed. One end side of the spacer 11A has a spherical outer surface, and this outer surface is in contact with the inner surface of the recess 531A of the mounting portion side connection member 53A. A spiral groove 111A that is screwed into the groove 94A of the display unit side connecting member 9A is formed on the inner peripheral surface of the spacer 11A.

  In the above connection part 10A, the display part 2 contacts the attachment part side connection member 53A via the spacer 11A in a state where the spacer 11A is screwed to the display part side connection member 9A. At this time, since a suction force due to a magnetic force acts between the display unit side connection member 9A and the mounting unit side connection member 53A, the display unit 2 is connected to the mounting unit 5 by this suction force.

  Here, 10 A of connection parts are comprised so that adjustment of the attractive force by the magnetic force between the display part 2 and the mounting part 5 is possible. That is, when the spacer 11A is rotated and the spacer 11A is moved in the left direction in FIG. 6, the interval between the display unit side connecting member 9A and the mounting unit side connecting member 53A is narrowed, and the display unit 2 and the mounting unit 5 are separated from each other. The attractive force due to the magnetic force between them increases. On the contrary, when the spacer 11A is moved in the right direction in FIG. 6, the distance between the display unit side connecting member 9A and the mounting unit side connecting member 53A increases, and the attractive force due to the magnetic force between the display unit 2 and the mounting unit 5 is increased. Becomes smaller.

According to the second embodiment described above, the connecting portion 10A includes the spacer 11A that can adjust the distance between the display portion side connecting member 9A and the mounting portion side connecting member 53A. The distance from the mounting portion 5 can be adjusted. For this reason, the attractive force by the magnetic force between the display part 2 and the mounting part 5 can be adjusted, and the strength of the connection of the display part 2 to the mounting part 5 can be adjusted.
That is, when the display unit 2 is connected to the mounting unit 5 with the suction force reduced, the display unit 2 is weakly connected to the mounting unit 5, so that the display unit 2 can be easily detached from the mounting unit 5. In addition, the display unit 2 can be easily attached and detached. On the other hand, when the display unit 2 is connected to the mounting unit 5 in a state where the suction force is increased, the display unit 2 is connected to the mounting unit 5 more strongly, so that the display unit 2 can be prevented from moving. .

  Further, the display portion side connection member 9A is provided with a spiral groove 94A, and the spacer 11A is provided with a groove 94A that is screwed with the groove of the display portion side connection member 9A. For this reason, by rotating the spacer 11A in a state where the spacer 11A is screwed to the display unit side connection member 9A, the interval between the display unit side connection member 9A and the spacer 11A is changed, and the display unit side connection member 9A. And the mounting portion side connecting member 53A can be adjusted. For this reason, the distance between the display unit 2 and the mounting unit 5 can be easily adjusted, and the strength of connection between the display unit 2 and the mounting unit 5 due to the magnetic force can be easily adjusted.

[Third Embodiment]
Next, 3rd Embodiment of this invention is described based on drawing.
FIG. 7 is a diagram illustrating a configuration of the connection unit 10B of the head-mounted display device 1B according to the third embodiment.
In the present embodiment, the configuration of the connecting portion 10B is different from that of the first embodiment as shown in FIG. Other configurations are the same as those in the first embodiment.

Specifically, the display unit side connecting member 9B is formed of a cylindrical iron member having a recess 95B. In the recess 95B, a plurality of grooves 96B are formed toward the bottom surface portion 92B. On the other hand, the mounting portion side connection member 53B is formed in a bottomed cylindrical shape having a recess 531B. In the concave portion 531B, there is provided a convex portion 533B which is configured by a magnet formed in a cylindrical shape and protrudes from the bottom surface of the concave portion 531B. The convex portion 533B is provided with a plurality of ribs 534B in the protruding direction. And the display part side connection member 9B fits into the convex part 533B, and the display part side connection member 9B is connected to the mounting part side connection member 53B by the magnetic force of the convex part 533B.

  Here, the mounting portion side connecting member 53B is provided with a side wall 538B as a second restricting portion that extends to the display portion side connecting member 9B side around the convex portion 533B and constitutes the concave portion 531B. The side wall 538B covers the periphery of the display unit side connection member 9B in a state where the display unit side connection member 9B is fitted to the convex portion 533B of the mounting unit side connection member 53B. For this reason, even if the display unit 2 tries to rotate downward about the display unit side connecting member 9 or to rotate toward the observer side due to the weight of the display unit 2 or the impact on the display unit 2, etc. The side wall 538B restricts the rotation of the display unit side connecting member 9. As a result, the side wall 538B prevents the connection between the display unit 2 and the mounting unit 5 from being inadvertently released or prevents the display unit 2 from coming off in the direction of the eyes of the observer.

According to the above 3rd Embodiment, the effect similar to 3rd Embodiment can be exhibited.
Further, in the present embodiment, the side wall 538B of the mounting portion side connecting member 53B is provided around the convex portion 533B of the display portion side connecting member 9B. As a result, the rotation of the display unit 2 around the display unit side connecting member 9 in all directions can be restricted, so that the connection between the display unit 2 and the mounting unit 5 is unintentionally released. It can be surely prevented.

It should be noted that the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
In the above-described embodiment, the head-mounted display device 1 is provided with the display unit 2 and the light guide plate 3 one by one corresponding to one eye of the observer. However, the present invention is not limited to this. It does not matter as a structure to do. At this time, the pair of display units 2 may be connected to the mounting unit 5 so as to correspond to both eyes of the observer.
In the embodiment, the head-mounted display device 1 employs the display element 6 including the transmissive liquid crystal display device 61. However, the present invention is not limited to this, and other configurations, for example, a reflective liquid crystal display. You may employ | adopt the display element provided with a device, a digital micromirror device, etc. A self-luminous display element such as an organic EL device may be employed.

  In the embodiment, the head-mounted display device 1 is a virtual image display type that allows an observer to recognize the image light emitted from the display element 6 through the light guide plate 3. 6 may be a direct display type in which the image light emitted from 6 is directly recognized by an observer. Moreover, as a light guide part, you may employ | adopt other structures, such as not only the light guide plate 3, but a mirror.

  In the above-described embodiment, the display unit 2 is rotatable in the horizontal direction with respect to the mounting unit 5. However, the display unit 2 is configured to regulate rotation in the horizontal direction and in the direction close to the mounting unit 5. May be. For this purpose, for example, as shown in FIG. 8, an extension extending from the frame 8 to the display unit side connecting member 9 side and from the frame 8 to the light guide plate 3 side of the support unit 83 of the display unit side connecting member 9 in the frame 8. What is necessary is just to provide the output part 84. FIG. Since the extension portion 84 has a larger extension amount from the frame 8 than the support portion 83, for example, when the display portion 2 hits an object and the light guide plate 3 tries to rotate in a direction close to the mounting portion 5, the frame 8 abuts on the extension 84. As a result, the extension part 84 restricts the display part 2 from rotating more than a predetermined amount in the direction approaching the observer, and prevents the light guide plate 3 from rotating more than necessary in the direction of the observer's eyes. can do.

In the said embodiment, although the display part side connection members 9, 9A, and 9B were comprised with the iron member and the mounting part side connection members 53, 53A, and 53B were comprised with the magnet, it is not restricted to this, Display part side connection The members 9, 9 </ b> A, and 9 </ b> B may be configured with magnets, and the mounting portion side connection members 53, 53 </ b> A, and 53 </ b> B may be configured with iron members.
Further, it is not essential that the display unit side connecting members 9 and 9A and the mounting unit side connecting members 53 and 53A are composed of magnets themselves, and a magnet 99 may be embedded as shown in FIG.
Furthermore, the display unit side connection members 9, 9A and the mounting unit side connection members 53, 53A may be composed of magnets having different poles, and if an attractive force is generated between the display unit side connection members 9, 9A and the magnet, Materials other than iron may be used.

  The present invention can be used for a head-mounted display device such as a head-mounted display.

  DESCRIPTION OF SYMBOLS 1,1A, 1B ... Head mounting type display apparatus, 71 ... Projection lens, 2 ... Mounting part, 5 ... Mounting part, 9, 9A, 9B ... Display part side connection member, 10, 10A, 10B ... connection part, 11A ... spacer (suction force adjusting member), 53, 53A, 53B ... mounting part side connection member, 91 ... rib (first regulating part), 532 ... grooves (first regulating part), 536 ... overhanging part (second regulating part), 536B side wall ... (second regulating part).

Claims (8)

A display for emitting image light;
A mounting part to be mounted on the observer's head;
A connecting portion for detachably connecting the display portion to the mounting portion;
The connecting portion is
A display unit side connecting member provided in the display unit;
A mounting portion side connecting member provided in the mounting portion;
The display unit side connecting member and the mounting unit side connecting member connect the display unit to the mounting unit by magnetic force. The head-mounted display device according to claim 1,
The connecting portion is provided so that the display portion and the mounting portion can be relatively rotated in at least two directions of the vertical direction and the horizontal direction around the connecting portion when the head-mounted display device is mounted. A head-mounted display device characterized by that. The head-mounted display device according to claim 2,
The connecting portion is
A first restricting portion for restricting relative rotation in the vertical direction;
The head-mounted display device characterized in that the relative rotation in the horizontal direction is allowed. The head-mounted display device according to claim 3,
The first restricting portion is
A groove provided in a horizontal direction on one of the display part side connection member and the mounting part side connection member;
A head-mounted display device comprising: a rib provided on the other of the display unit side connecting member and the mounting unit side connecting member and latched in the groove. The head-mounted display device according to any one of claims 1 to 4,
The connecting portion is
A head-mounted display device comprising a second restricting portion that extends from one of the display unit side connecting member and the mounting unit side connecting member to the other side and covers a part of the other side. . The head-mounted display device according to claim 1 or 2,
The connecting portion is
A suction force adjusting member provided between the display unit side connecting member and the mounting unit side connecting member;
The head-mounted display device, wherein the suction force adjusting member is configured to be able to adjust a distance between the display unit side connecting member and the mounting unit side connecting member. The head-mounted display device according to claim 6,
One of the display unit side connection member and the mounting unit side connection member is provided with a spiral groove,
The head-mounted display device, wherein the suction force adjusting member is provided with a groove screwed with the groove of the display unit side connecting member. The head-mounted display device according to any one of claims 1 to 7,
At least one of the display unit side connecting member and the mounting unit side connecting member includes a magnet, and the display unit is connected to the mounting unit by the magnetic force of the magnet.

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