JPH11177906A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To relieve troublesome handling of an inner ear type headphone. SOLUTION: In the case that the display device main body is not mounted on a viewer, a headphone cable 17 is contained in a housing 14. When the viewer mounts the display device body and views a video image, the viewer extracts a headphone 13 and wears it on the ears. In this case, a claw 19 and a click part 20 mesh with each other to stop the headphone cable 17 with an optional length. Furthermore, the meshing between the claw 19 and the click part 20 is energized by a leaf spring 21 so as not to be simply come off. After the viewer removes the display device main body, the viewer depressed a winding button 18 to release the meshing between the claw 19 and the click part 20 and then the headphone cable 17 is wound up.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device in which an observer wears a head or face to observe an image.

[0002]

2. Description of the Related Art FIG. 10 is a side view of a conventional head mounted image display apparatus, and FIG. 11 is a sectional view. The observer S wears the display device main body 1 on his or her head or face and enjoys video and audio so that a high immersion feeling can be obtained. The apparatus main body 1 includes an LCD (display unit) for displaying a two-dimensional image.
A liquid crystal display 2, a backlight 3 illuminating the LCD 2, and a prism 4 forming an eyepiece optical system. Further, headphones 5 attached to the ears of the observer S are attached to the apparatus main body 1.

An image displayed on the LCD 2 is illuminated by a backlight 3, passes through a central optical axis O, is expanded by a prism 4, and is guided to an eyeball of an observer S. The observer S wearing the apparatus main body 1 can observe the enlarged image as if it were floating above the hollow in front of the eyes, and at the same time, a very high level of immersion due to sound being input from the ear. Can be obtained.

[0004]

However, in the above-mentioned conventional example, when the observer S wears the apparatus main body 1 and enjoys a video, in order to obtain a higher feeling of immersion, unnecessary external sound is cut off. There is a need to. For this purpose, it is effective to use large closed type headphones or in-ear type headphones, but large closed type headphones are not suitable for use as head mounted type in terms of size and weight. is there. In addition, the in-ear type headphones are small and lightweight, so they are useful as a head-mounted type. However, there is a problem that the presence of the headphone cable is troublesome for the observer S when wearing the headphones, which causes discomfort. Furthermore,
When the apparatus main body 1 is not mounted, the headphone cable is in the way, so that there is a problem that the thin headphone cable is easily broken by rough handling.

An object of the present invention is to solve the above-mentioned problems,
An object of the present invention is to provide a display device in which headphones are housed and in which a headphone cable is troublesome.

[0006]

According to the present invention, there is provided a display device for displaying at least one image, and an eyepiece for guiding the image of the display device to an eyeball of an observer. System, sound output means for outputting sound to each of the left and right ears of the observer, a frame holding the display element and the eyepiece optical system, and mounting the frame on the observer's head or face And a housing for accommodating each of the left and right audio output means.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the embodiments shown in FIGS. FIG. 1 is a perspective view of the display device of the first embodiment, and FIG. 2 is a partial side view. The display device main body 10 has ear hooks 12 on the left and right sides of a display observation unit 11 like ordinary glasses. A housing 14 for accommodating an in-ear type headphone 13 is attached to the ear hook 12.

FIG. 3 is a sectional view of the housing 14. The housing 14 is provided with a ring member 15 and a switch member 16. An end of a headphone cable 17 of the headphone 13 is fixed to the ring member 15, and the cable 17 can be stored in the housing 14 by winding the headphone 13 by the ring member 15. That is, the headphone cable 17 is stored when the display device main body 10 is not mounted, and the headphone cable 17 is pulled out and used when the display device main body 10 is mounted. A spring (not shown) for applying a force for winding the headphone cable 17 is attached to the ring member 15.

The switch member 16 has a lever structure, and has a take-up button 18 at one end and a pawl 19 at the other end.
Is formed, and the pawl 19 is hooked on the click portion 20 provided on the ring member 15 to stop the urging force of the winding by the mainspring spring. Further, the compression spring 21 attached to the switch member 16 is fixed in the housing 14 so that the engagement between the claw 19 and the click portion 20 does not easily come off, and furthermore, the reaction force of the pressing of the winding button 18 is generated. Has become.

When the display device main body 10 is not mounted on the observer S, the headphone cable 17 is connected to the housing 1.
4. When the observer S wears the display device main body 10 and observes an image, he pulls out the headphones 13 and wears them on his ears. At this time, the claw 1 of the switch member 16
The headphone cable 17 can be stopped at an arbitrary length by engaging the click portion 9 with the click portion 20 of the ring member 15. The engagement between the claw 19 and the click portion 20 is urged by a leaf spring 21 so as not to be easily disengaged. Then, after the observer S removes the display device main body 10 and presses the winding button 18, the engagement between the claw 19 and the click portion 20 is released, and the headphone cable 17 is wound.

As described above, since the headphones 13 are retractable, when the display device main body 10 is not attached to the observer S, the headphone cable 1 is not used.
7 does not get in the way, and it is possible to prevent the thin headphone cable 17 from being cut carelessly.

The method of winding the headphone cable 17 by the ring member 15 may be, for example, an electric winding using a motor or the like, or a rubber.
Further, the method of storing the headphones 13 does not need to be limited to the winding button 18.

FIG. 4 is a side view of the housing of the second embodiment, and FIGS. 5 and 6 are perspective views. The same members as those of the first embodiment are denoted by the same reference numerals. The housing 14 is provided with a recess 22 for fitting the headphones 13, and the recess 22 is provided with a push button 23 for turning on / off the sound.

When the display device main body 10 is not mounted, a clean appearance can be obtained by fitting the headphones 13 into the concave portions 22 and placing them. At this time, as shown in FIG. 5, the push button 23 is set so as to be depressed by the headphones 13 and the sound is turned off.

After the observer S wears the display device main body 10 and pulls out the headphones 13 from the concave portion 22, the depressed push button 23 returns as shown in FIG. 6, and the sound is turned on. At 13 the voice can be heard.

When the observer S interrupts the observation of the image and presses the take-up button 18 of the headphone cable 17 provided on the housing 14, the headphone 13 is fitted into the concave portion 22, and as shown in FIG. Is depressed again and the sound is turned off. As described above, the push button 2 for switching on / off the audio output is provided in the recess 12 of the housing 14.
By providing 3, it is possible to suppress unnecessary power consumption when the headphones 13 are stored. Also,
Since the headphones 13 are always stored in the same place, even when the display device main body 10 is attached and the observer S has no visibility, the headphones 13 can be easily located.

FIG. 7 is a side view of the ear hook of the third embodiment, FIG. 8 is a perspective view, and FIG. 9 is a sectional view of the housing.
FIG. 7 shows a state where the housing is attached to the left ear hook 12 of the display device main body 10, and FIG. 8 shows a state where the housing 14 is removed from the left ear hook 12. A recess 24 for fitting the housing 14 and a terminal 25 for sending an audio signal to the housing 14 are attached to the ear hook 12, and a terminal 26 for connecting to the terminal 25 is attached to the housing 14. Is attached.

The housing 14 is detachable from the left and right ear hooks 12 and receives audio signals from a main board (not shown) in the display device main body 10. When fitting the housing 14 into the concave portion 24 in the ear hook portion 12, the respective terminal portions 25 and 26 are joined and fitted.

In the in-ear type headphones 13,
Although the headphone cable 17 is too thin to break or break easily, the left and right housings 13 for housing the headphones 13 are both detachable from the display device body 10 as in the present embodiment. Is configured to be replaceable for each housing 14, it is possible to easily repair a fragile headphone unit even if it breaks down, and to improve workability.

[0020]

As described above, the display device according to the present invention is capable of accommodating headphones as audio output means when wearing it on the head or face of an observer and enjoying an image. The cable does not become a hindrance at the time of mounting, so that troubles such as disconnection are reduced, and the appearance can be made clear.

[Brief description of the drawings]

FIG. 1 is a perspective view of a display device according to a first embodiment.

FIG. 2 is a side view of an ear hook.

FIG. 3 is a sectional view of a housing.

FIG. 4 is a side view of a housing according to a second embodiment.

FIG. 5 is a perspective view when the switch is off.

FIG. 6 is a perspective view when the switch is turned on.

FIG. 7 is a side view of an ear hook of the third embodiment.

FIG. 8 is a perspective view.

FIG. 9 is a sectional view of a housing.

FIG. 10 is a side view of a conventional example.

FIG. 11 is a sectional view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Display main body 12 Ear part 13 Headphone 14 Housing 15 Ring member 16 Switch member 17 Headphone cable 18 Rewind button 19 Claw 20 Click part 23 Push button 25, 26 Terminal part

Claims (4)

[Claims] 1. A display element for displaying at least one image, an eyepiece optical system for guiding an image on the display element to an eyeball of an observer, and audio output means for outputting sound to each of left and right ears of the observer. And a frame that holds the display element and the eyepiece optical system, and a mounting member that mounts the frame on the head or face of the observer. A display device comprising a housing. 2. The display device according to claim 1, wherein a recess is provided in the housing to fit an output unit of the audio output mechanism. 3. The display device according to claim 2, wherein a switch for switching on / off of audio output is provided in the recess of the housing. 4. The display device according to claim 1, wherein the left and right housings are replaceable.