JPH09200649A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device with which the feeling of concentration is improved, eyestrain is reduced, the number of parts is decreased, costs are reduced, the planar image of ordinary camera can be presentated as well and images can be displayed with operations. SOLUTION: An optical system composed of integrated left and right lenses having parallel two convex lens parts 2 and 3 on the right and left sides of planar display part 1 having one rectangular display part is housed in a casing 13. Further, left and right handles 6 and 7 and left and right speakers 4 and 5 are connected to the casing 13. This casing 13 is supported by a U-shaped column CIO so as to be rotated and slid in pitch direction, and the rotation in the pitch direction is sensed by a potentiometer 8. That column C10 is supported by a vertical strut A11, which is supported by a strut B12 so as to be vertically slid, so as to be rotated in yaw direction and the rotation in the yaw direction is sensed by a potentiometer 9. Corresponding to the detected rotating angle of these two axes, the attitude of camera for photographing, for example, is controlled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is one type of head-mounted display that is utilized in the fields of virtual reality, telexistence, etc., and the display is not mounted on the head with a band or the like. The present invention relates to a display device in which a display is supported by columns and an eyepiece is attached.

[0002]

2. Description of the Related Art As a head-mounted display used in the fields of conventional virtual reality, tele-gistance, etc., one in which the display is mounted on the head with a band or the like, or a head-mounted display However, there is a so-called periscope type in which the display unit is supported by a column instead of being attached to the head by a band or the like. As such a periscope type display, F
There is a product name BOOM etc. of ake Space Labs (Reference: Michitaka Hirose, "Virtual Reality", Industrial Book (1993)).

As such a conventional display, two liquid crystal displays and a CRT display corresponding to the right eye and the left eye of the user are prepared, and the two images of the right eye and the left eye are respectively provided with a convergence difference, respectively. The right eye and the left eye are made to allow the user to perform stereoscopic vision through separate optical systems, and at the same time, most of the visual field is covered by the display.

[0004]

However, the conventional display device described above is provided with two liquid crystal displays corresponding to the right eye and the left eye of the user, and the right eye and the left eye respectively pass through different optical systems to the user. It is very immersive because it has a stereoscopic view and at the same time covers most of the field of view with a display, but even if the optical system is devised, it is not always natural stereoscopic view (for example, the vergence angle and the focus position do not match). Therefore, there is a problem that eye fatigue is easily induced (reference “Nikkei Electronics: Avoid unnatural display and reduce burden on human body”, 1994, 9, 26 (N
o. 618), pp. 73-80. In addition, the above-mentioned conventional display device has a problem that the cost is increased because the left and right independent displays are required.

Therefore, an object of the present invention is to provide a display suitable for fields such as virtual reality and telexistence, which has a large immersive feeling and little eye fatigue.
An object of the present invention is to provide a display device having a small number of parts, low cost, capable of displaying an image accompanied by an operation, and capable of presenting a flat image captured by an ordinary camera as it is.

[0006]

In order to achieve the above object, the present invention provides a flat display having one rectangular display portion and an eyepiece arranged parallel to the flat display so that the left and right eyes can contact each other. An optical system including one convex lens or an optical element having a function of a convex lens so that the flat display can be observed, and the optical system is incorporated into the column so as to be rotatable in both directions at least in two axes of pitch and yaw. It is provided with: a supported housing; and a detection means for detecting a pitch of the housing and a rotation amount or a rotation position of two axes of yaw attached to a rotation sliding portion between the housing and a pillar or between the pillars. A display device is used as a means.

In the above display device, it is preferable to attach a handle to the housing so that the user can move the housing at will. In addition, it is preferable that a speaker is attached so that a video display accompanied by audio can be enjoyed.

In the above display device,
It is preferable that the convex lens or the optical element having the function of the convex lens is configured as a left-right integrated type and has a rectangular shape in order to expand the field of view, improve the immersive feeling, and help reduce the feeling of fatigue.

According to the present invention, each convex lens is positioned in parallel with a flat display having one rectangular display portion, and has, for example, a left and right convex lens such as a rectangular transmissive portion having convex surfaces on the right and the left, or functions equivalent thereto. By allowing the user to view one display with the left and right eyes via the left-right integrated optical system composed of optical elements, it is possible to observe images in a wide field of view while increasing the immersive feeling. It reduces eye fatigue and reduces the cost by reducing the number of parts by using a single display, so that flat images captured by ordinary cameras can be presented as they are. Further, by connecting the left and right handles and the left and right speakers to the housing, and having a detection means such as a potentiometer for sensing the pitch of the housing and the rotation of the two axes of the yaw in the housing and the column or the rotation sliding portion between the columns,
(EN) A display device which enables video display accompanied by operation and is suitable for fields such as virtual reality and telegression.

The feature of the present invention is that, instead of using two displays corresponding to the two left and right eyes of the user and two optical systems corresponding to the two eyes, one display and two convex lenses are integrated. Using the optical system,
This is different from the conventional technique in that unnatural stereoscopic vision that causes fatigue is not performed.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings.

1 and 2 are explanatory views of an optical system according to an embodiment of the present invention. FIG. 1 shows a configuration viewed from the top, and FIG. 2 shows an outline thereof.

In the figure, 1 is a flat display unit having a rectangular display unit, 2 is a right convex lens for the right eye R of the user, and 3 is a left convex lens for the left eye L of the user. The flat display unit 1 is composed of an LCD, a CRT, a plasma display, or the like. The right-convex lens 2 and the left-convex lens 3 are one rectangular optical component integrally formed and connected at the center. The integrated convex lenses 2 and 3 are installed in parallel with the flat display unit 1, and the user looks into the flat display unit 1 arranged in the left and right center with both eyes L and R. Instead of the convex lens, an optical element such as a Fresnel lens that has the same function may be used.

FIGS. 3 and 4 are schematic views showing an embodiment of the present invention. FIG. 3 shows the appearance from the optical system side.
Shows the appearance from the opposite side.

In the figure, 1 is a flat display part, 2 is a right-convex lens, and 3 is a left-convex lens, as shown in FIGS. Further, 4 is a speaker for the right ear, 5 is a speaker for the left ear, 6 is a right handle, 7 is a left handle, 8 is a potentiometer for detecting a pitch direction, 9 is a potentiometer for detecting a yaw direction, 10 is a post C, and 11 is a vertical handle. Support columns A, 1
Reference numeral 2 is a vertical support column B, and 13 is a housing.

As shown in FIG. 3 and FIG. 4, which are schematic views, the display unit 1 and the left and right convex lenses 2 and 3 are mounted on a housing 13, and the housing 13 further includes speakers 4 and 5 for left and right ears.
And the left and right handles 6, 7 are connected. The right handle 6 and the left handle 7 are connected by a bar that draws a curve. The left and right side surfaces of the housing 13 are rotatably suspended at both ends of the U-shaped support pillar C10.
A potentiometer 8 for detecting a rotation angle in the pitch direction is attached to the rotary sliding portion. The column C10 is joined to the vertical support column A11, and the potentiometer 9 is attached to the rotary sliding portion between the columns 10 and 11 to detect the rotation angle in the yaw direction. The vertical support column A11 is inserted in the vertical support column B12 so as to slide in the vertical direction, and the user holds the handles 6 and 7 and moves the entire housing 13 to a desired height in the vertical direction. You can

The potentiometers 8 and 9 detect a rotation angle of two degrees of freedom moved by the user with the handles 6 and 7.
Depending on the detected rotation angle, for example, a camera with two degrees of freedom (not shown) installed in a remote place and connected by a communication network is linked to display a desired landscape or surveillance area of the remote place, or an image is displayed. Desired video is displayed while operating a video device that provides the above according to the rotation angle, or a landscape image generated by computer graphics is generated and displayed according to the rotation angle. It goes without saying that the display device may be used only for displaying video images and the like.

FIG. 5 is a view showing the appearance of the display device of the present embodiment in use.

In the present embodiment, the user does not mount the display unit 1 on the head with a band or the like, but uses the periscope type display supported by the column by the user to hold the handles 6 and 7 and use both eyes as an optical system. Use by eye contact. In the present embodiment, since one display and the optical system are arranged near both eyes, the display occupies a large proportion of the user's field of view, so that the sense of immersion can be increased. In addition, since the left and right eyes are made to correspond to independent displays and optical systems and are not stereoscopically viewed due to the difference in vergence angle, one plane is displayed for both eyes, which causes unnatural stereoscopic viewing. Little eye fatigue. Also, since the display and lens are one, the number of parts is small and the cost is low. Furthermore, since there is only one display, it is possible to present a flat image captured by a normal camera as it is.

Industrial applications of the present invention include a display device for operating a remote control robot, a display device for a remote monitoring system, a video watching device for one person, and a landscape or an object generated by computer graphics. As a display device or the like, it can be applied to virtual reality, telexistence, telepresence and the like in general.

In the above embodiment, as shown in FIG. 5, an example of a periscope type display in which the column 12 is fixedly connected to the ceiling 14 of the installation place is shown. It may be connected to a column such as an arm of a desk lamp. Further, stereoscopic viewing can be performed using a single display, and the feeling of fatigue can be reduced as compared with conventional stereoscopic viewing. As an example of stereoscopic view by one display, optical elements such as vertical cylindrical lenses and stripe prisms are arranged horizontally in contact with or close to the display of FIG. 1, and stripes alternate on the display. There is an example in which the left and right images are combined and displayed, and the left and right images are separated in the directions of the left and right eyes by the above optical elements. Further, the speaker may be attached if necessary, and may be omitted. Furthermore, when moving the housing, the user can directly move the housing, so that the handle can be omitted.

[0022]

As described above, according to the present invention, since one display and its optical system are arranged near the eyeball of the user, the display occupies a large proportion of the user's field of view, and the immersive feeling is increased. You can increase the size and reduce fatigue. In addition, since the left and right eyes have independent displays and optical systems that correspond to each other and stereoscopic vision is not provided due to the difference in vergence angle, a single flat image is given to both eyes, which results in unnatural stereoscopic vision. Can reduce fatigue. Also, since the display and optical system are one, the number of parts is small and the cost can be reduced. Further, since there is only one display, there is an advantage that a plane image taken by an ordinary camera can be presented as it is. Furthermore, since the rotation amount and rotation position of the two axes of pitch and yaw can be detected,
It is possible to display images accompanied by operation, display device for remote control robot operation, display device for remote monitoring system, video viewing device for one person, display device for landscape and objects generated by computer graphics, etc. As a whole, it can be applied to virtual reality, telepresence, and telepresence.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an optical system in a display device according to an embodiment of the present invention.

FIG. 2 is a schematic view of an optical system according to the above embodiment.

FIG. 3 is an external view of the display device of the above-described embodiment from the optical system side.

FIG. 4 is an external view of the display device of the above-described embodiment from the opposite side of the optical system.

FIG. 5 is an external view of a case where the above embodiment is used.

[Explanation of symbols]

 1 ... Flat display part 2 ... Right convex lens 3 ... Left convex lens R ... User's right eye L ... User's left eye 4 ... Right ear speaker 5 ... Left ear speaker 6 ... Right handle 7 ... Left handle 8 ... Pitch direction detection Potentiometer 9 ... Potentiometer for yaw direction detection 10 ... Strut C 11 ... Vertical support strut A 12 ... Vertical support strut B 13 ... Enclosure

Claims (3)

[Claims] 1. A flat display having one rectangular display unit, and one convex lens or a function of a convex lens which is positioned parallel to the flat display and is arranged so that the left and right eyes can be in contact with each other. An optical system including an optical element having: a housing supported by a support so as to be rotatable in both directions at least in two axes of pitch and yaw, and the optical system is incorporated; and a rotation slide between the housing and the support or the support. A display device, comprising: a detection unit configured to detect a pitch of the housing attached to a moving unit and a rotation amount or a rotation position of two axes of yaw. 2. The display device according to claim 1, wherein a handle or a handle and a speaker are attached to the housing. 3. The display device according to claim 1, wherein the convex lens or the optical element having the function of the convex lens is a left-right integrated type and has a rectangular shape.