JPH10186268A - Head mounted type display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify true constitution of a device, to prevent the weight thereof from being increased and to prevent light shielding coefficient and transmissivity from becoming insufficient by forming an aperture part on a device main body so that an outside world can be observed and providing the device with an armor cover freely opening and closing the aperture part. SOLUTION: The front surface part of the device main body 1 (just in front of the eye of an observer) is provided with the armor cover 3 which can be made to spring up with the hinge part 2 of the upper part as a supporting point. The cover 3 is constituted so that the main body 1 is shielded from the light of the outside world. When a video is enjoyed, the front surface part of the main body 1 is covered with the cover 3. When the outside world is observed, the cover 3 is made to spring up so as to form an open space. By a photoelectric sensor 7 arranged in the main body 1, the opening and closing state of the cover 3 is automatically detected so as to automatically switch the action of the device to the receiving action of an electronic picture and the observing action of the picture of the outside world. Thus, the outside world can be observed without arranging a shutter mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an indoor and an outdoor
The present invention relates to a head-mounted display used by wearing it on the head to enjoy a large-screen image alone.

[0002]

2. Description of the Related Art A head-mounted display is capable of displaying an image three-dimensionally and receiving sound three-dimensionally, and is attracting attention as a new image equipment mainly for young people. The head-mounted display has a helmet type, a goggle type, an eyeglass type, or the like, and is externally attached to the head via an optical unit mounted on the head. It is configured so that it is possible to observe images and enjoy sound without being affected by light. Further, the viewer is configured to be able to observe the outside world while wearing the head-mounted display as needed.

[0003]

As described above, the head-mounted display is configured so that the external world can be observed as necessary. For this purpose, a shutter mechanism such as a liquid crystal shutter is provided in the apparatus, and the shutter mechanism is provided. By opening and closing a shutter, the outside world can be observed or light can be shielded (Japanese Patent Laid-Open No. 2-281891). However, the configuration in which a shutter mechanism such as a liquid crystal shutter is provided in the apparatus causes problems such as an increase in the weight of the apparatus, complication of the configuration of the apparatus, insufficient image display due to insufficient light blocking rate and transmittance, and external observation. there were.

SUMMARY OF THE INVENTION The present invention has been proposed to solve the above-mentioned problem, and has as its object to provide a head-mounted display device capable of observing the outside world without providing a shutter mechanism.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention comprises a video display means for displaying an image signal and a voice transmission means for transmitting a voice signal, and a main body provided with an optical path for external observation. In the head mounted display device configured to be able to be mounted on the head of the observer, an opening is formed in the device main body so that the external world can be observed, and an exterior cover that allows the opening to be opened and closed is provided. It is a head-mounted display device.

[0006] As described above, the opening is formed in the main body of the apparatus so that the outside can be observed, and the exterior cover that allows the opening to be opened and closed is provided. You can see the video by closing the outer cover.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 and 2
1 shows a first embodiment of the present invention. As shown in the figure, an exterior cover 3 is provided on the front part (in front of the observer's eyes) of the apparatus main body 1 so that the upper hinge part 2 can be flipped up to a fulcrum. This exterior cover 3
It is designed to block the external light. When enjoying the video, lower it so as to cover the front part of the main body 1, and when observing the external world, flip it up as shown in FIG. Good.

FIG. 2 shows an optical system provided inside the head mounted display device, and shows a prism 5 of a half mirror disposed in front of an eyeball 4 of an observer. When an open space is created in the front part of the apparatus main body 1, an external image enters the eyeball 4 of the observer as in the optical path A. On the other hand, when enjoying the video, the exterior cover 3
An electronic image from a liquid crystal display (LCD) 6 provided in the vicinity of the prism 5 is guided to the eyeball 4 via the optical path B in a state where the light is lowered. In this state, superimposition for superimposing the electronic image from the liquid crystal display 6 on the external image may also be possible.

As shown in FIG. 1, reference numeral 7 denotes a photoelectric sensor provided on the apparatus main body 1. The photoelectric sensor 7 automatically detects the opening and closing of the outer cover 3 as described later, and switches between reception of an electronic image and observation of an external image. Is performed automatically. Further, the exterior cover 3 may be configured as a binocular one or an independent one for each eye.

FIG. 3 shows a second embodiment of the present invention, in which parts corresponding to those of the first embodiment are denoted by the same reference numerals (the same applies to the following embodiments). In this embodiment, an exterior cover 3 attached to the apparatus main body 1 is used.
Is detachable from the front part. Other configurations and effects are the same as those of the first embodiment.

FIG. 4 and FIG. 5 show a third embodiment of the present invention. In this embodiment, an opening 1a is formed in each of the two eyes of the apparatus main body 1, and an exterior cover 3 having a knob 3a is slidably provided here. FIG. FIG. FIG. 5 is a transverse sectional view. As shown, an opening 1a is formed on the front of the apparatus main body 1 on the left and right, and a guide member 8 is provided inside the opening 1a to slide the outer cover 3 left and right. It is configured to be possible. Other configurations and effects are the same as those of the first embodiment.

FIG. 6 shows a modification of the third embodiment. In FIGS. 4 and 5, the outer cover 3 is opened and closed independently of the left and right. Are moved up and down, and both eyes are simultaneously opened and closed.

FIG. 7 shows a fourth embodiment of the present invention, in which an opening for observing the external world is not formed on the front surface of the apparatus main body 1, and an opening is formed on the side surface as shown in FIG. 7B. 1a, the exterior cover 3 is provided so as to cover the opening 1a, and the exterior cover 3 is configured to be slidable in the direction of the arrow. Then, when observing the outside world, the exterior cover 3 is moved to make it an open space, and the observer observes the external appearance by turning his or her eyes horizontally. When observing the external world in this configuration, superimposition cannot be performed because an optical system for viewing an electronic image is not interposed. Further, an opening for observing the outside world and an exterior cover may be provided on the upper or lower front surface of the apparatus main body 1.

FIG. 8 shows the first embodiment to the third embodiment, and controls the backlight or the video signal to turn on / off the video display in accordance with the attachment / detachment of the outer cover 3 or the movement of the slide. This shows a method for performing the operation. The apparatus main body is provided with a detecting means for detecting the operation of the outer cover, and a control means for controlling the video display means based on a signal from the detecting means. Detection unit 9 shown
Are configured to detect the presence or absence of an open space by a limit switch that mechanically detects the movement of the exterior cover, a photoelectric sensor that detects light incident by the movement of the exterior cover, and the like. The relay unit 10 connected to the detection unit 9 is connected to the power / trigger signal circuit 11 and the backlight circuit 12.

Therefore, when a signal from the detection unit 9 is input, the relay unit 10 is turned on / off, the connection between the power / trigger signal circuit 11 and the backlight circuit 12 is opened and closed, and the lighting of the backlight circuit 12 is performed. Can be turned off. In addition, the backlight can be turned off when an open space is generated by another control signal, or the backlight can be turned on in two different states despite the open space. Therefore, it is possible to freely switch between see-through in which only the outside world can be observed and superimposition in which the outside world and the electronic image can be superimposed.

FIG. 9 shows another method of turning on / off a video display by controlling a backlight or a video signal. In this method, the video switching unit 13 connected to the detection unit 9 is connected to the supply video signal circuit 14, the black video signal circuit 15, and to the display unit 16. The black video signal circuit 15 supplies a black video signal to the display unit 16 to realize the same state as when the backlight is turned off. Therefore, based on the signal from the detection unit 9, the video switching unit 13
When the video signal supplied to the display unit 16 is switched via the, the same effect as in the case of FIG. 8 can be obtained.

[0017]

As described above, according to the present invention, an opening is formed in an apparatus main body so that the outside world can be observed.
Since the outer cover is provided so that the opening can be freely opened and closed, the user can observe the outside world by opening the outer cover, and can view the image by closing the outer cover. Therefore, compared to the conventional configuration in which a shutter mechanism is provided,
The structure can be simplified and the weight can be prevented from increasing, and there is no shortage in terms of light blocking ratio and transmittance.

[Brief description of the drawings]

FIG. 1 is a side view showing a use state of an apparatus according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of an optical system in the apparatus.

FIG. 3 is a side view showing a use state of the device according to the second embodiment of the present invention.

FIG. 4 is a perspective view of an apparatus according to a third embodiment of the present invention.

FIG. 5 is a transverse sectional view of the same.

FIG. 6 is a perspective view and a longitudinal sectional view according to a modification of the third embodiment.

FIG. 7 is a front view and a side view of an apparatus according to a fourth embodiment of the present invention.

FIG. 8 is a block diagram for turning on / off a video display used in the apparatus according to the first to third embodiments of the present invention.

FIG. 9 is another block diagram.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Device main body 2 Hinge part 3 Exterior cover 7 Photoelectric sensor

Claims (2)

[Claims] 1. A head having image display means for displaying an image signal as an image and sound transmission means for transmitting an audio signal, wherein a main body provided with an optical path for external observation is configured to be mounted on the observer's head. A head-mounted display device, wherein an opening is formed in a main body of the device so that an outside world can be observed, and an exterior cover that allows the opening to be opened and closed is provided. 2. The apparatus according to claim 1, further comprising a detecting means for detecting an operation of the outer cover, and a control means for controlling the video display means based on a signal from the detecting means. Head-mounted display device.