JP2013076716A - Electronic device with three-dimensional image display function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To resolve problems with a conventional electronic device with a stereo viewer which causes a lot of trouble in switching between 2D display (normal display) and 3D display (three-dimensional display) and has poor portability due to difficulty in reducing thickness.SOLUTION: A casing of a display element and a cover of the casing on the back surface are connected to each other with a first rotary shaft. The cover and a binocular lens are connected to each other with a second rotary shaft, and rotated by approximately 270 degrees, respectively. This configuration enables both the 3D display, in which the binocular lens is disposed in parallel to the display element, and the 2D display, in which the binocular lens is received in the casing. Accordingly, a thin and highly portable electronic device with the 3D display function can be realized.

Description

  The present invention relates to a display device used for a thin mobile phone, a mobile terminal, and an electronic device.

  In view of portability, a thin display element of 3 to 4 inches is used as a display element of a mobile terminal device such as a mobile phone.

  In addition, display elements have become higher in definition and can display a large amount of information. However, there is a problem that characters and images displayed on a display element of a portable terminal are too fine to be seen.

In order to reproduce a stereoscopic image (3D image) with a display element without using glasses, for example, there is a 3D display method using a parallax barrier method. (For example, Patent Document 1)
However, since a small display element such as a portable terminal has a small screen, the realism of a stereoscopic image is lost.

  A method using a stereo viewer that displays a 3D image by viewing side-by-side stereo images in which the left image of the left visual line and the right image of the right visual line are arranged side by side is known.

This method can display a realistic 3D image even with a small display element. (For example, Patent Document 2 and Patent Document 3)
FIG. 16 shows a stereoscopic (3D) photo reproduction apparatus using a conventional stereo viewer.

  A stereo display 37 is arranged in accordance with the photo frame 38, and the left and right images are viewed with the left and right eyes through the binocular lens 6 composed of the two convex lenses 7 arranged at a distance from the photo position, so that stereoscopic display is possible. .

  The photographic frame 38, the arm 36, and the binocular lens 6 have a structure that can be folded by two rotating shafts 39, as shown in FIG.

  In addition, a method has been proposed in which a stereo image displayed on a display element is reproduced as a stereoscopic image by fixing an arm part with a binocular lens to a side surface of a display element (display) of an electronic device. (For example, Patent Document 4)

Japanese Patent Laid-Open No. 9-15532 Utility Model Registration No. 3025841 Japanese Patent Laid-Open No. 2003-228022 JP 2004-177431 A

  The electronic device having a stereoscopic (3D) image display element described in Patent Document 3 has a structure in which an arm is fixed to a housing frame around the display element, and thus portability is poor. .

  Although it is possible to remove the arm from the electronic device in order to make the electronic device easy to carry, it is necessary to carry the electronic device main body and the arm including the binocular lens separately, which is not suitable for carrying.

  In addition, electronic devices such as mobile phones and mobile terminals have many functions such as telephone calls, mails, televisions, cameras, and the like, and there are rather many functions that can be used even without stereoscopic image display (3D display). When an operation is performed on a conventional display screen (2D display) that is not a stereoscopic image, the arm gets in the way. Or, it takes time to remove the arm.

  For example, if a stereo viewer having a folding function described in Patent Documents 1 and 2 is mounted on a display element of an electronic device, it is easy to carry.

  However, since the stereo viewer described in Documents 1 and 2 has a structure in which a binocular lens is accommodated on a stereo image, an operation using a conventional display screen cannot be performed. That is, the operability of the conventional function such as e-mail becomes very poor.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to realize a thin and easy-to-carry electronic device while achieving both conventional 2D display and 3D display.

  Next, means for solving the above problems will be described.

  The present invention relates to an electronic device having a rectangular first display element, a casing to which the first display element is fixed, a cover of the casing, and a binocular lens, wherein the casing and the cover include the display The cover and the binocular lens are coupled by a first hinge having a first rotation shaft positioned parallel to the long side of the element and located at the end of the casing, and the cover and the binocular lens are parallel to the first rotation shaft. A first display mode in which the long sides of the first display element are displayed in a state of being horizontal or vertical, coupled with a second hinge having a moving axis, and an arrangement in which the long sides of the first display element are horizontal, and The display element has a second display mode in which a stereoscopic image is displayed by displaying a left-eye image and a right-eye image on each of the divided screens. , The binocular lens and the cover, the second rotating shaft After folding in the center, the cover and the housing are operated in the first form folded around the first rotation axis, and the second display mode is changed from the first form to the first rotation axis. The binocular lens is rotated by rotating the binocular lens at a second rotation angle of about 270 degrees about the second rotation axis after the cover is rotated at a first rotation angle of about 270 degrees as a center. And the display element operates in a second form in which the display elements are arranged substantially in parallel.

  Further, the cover has a frame on the short side portion, and the frame is disposed at a position protruding toward the housing in the first embodiment.

  Further, the first rotation shaft is disposed at a position close to the surface opposite to the first display element of the housing, and the cover is in contact with the side surface of the housing in the second form.

  Furthermore, the cover is coupled to the housing via a bearing that supports the first rotation shaft, and when a certain level of stress is applied between the bearing and the housing, the bearing and the housing are To separate.

  Furthermore, the first coupling surface of the housing and the second coupling surface of the bearing are in contact with each other so that the cover and the housing are coupled, the bearing is parallel to the second coupling surface, and the housing Means for sliding outward.

  Furthermore, a second display element is fixed to a surface of the housing opposite to the first display element, and a part or all of the cover is transparent. In the first embodiment, the second display element is the binocular. The transparent part of the cover of the lens is disposed so as to overlap the transparent part of the lens, and the transparent part of the cover of the cover is disposed so as to overlap the transparent part of the lens.

  According to the present invention, it is possible to realize an electronic device that is thin and easy to carry while achieving both 2D display and 3D display.

1 is a schematic structural diagram of a mobile terminal device according to a first embodiment of the present invention. 1 is a schematic cross-sectional view of a mobile terminal device according to Embodiment 1 of the present invention. 1 is a structural diagram of a connection portion between a cover and an upper housing of the portable terminal device according to the first embodiment of the present invention, and a cross-sectional view of the cover. Schematic structural diagram of the second form of the mobile terminal device of the first embodiment of the present invention Structure diagram of the first rotation shaft of the mobile terminal device according to the first embodiment of the present invention. 1 is a detailed structural diagram of a first rotation shaft and a bearing of the mobile terminal device according to the first embodiment of the present invention. Structure diagram of a bearing including a spring of the mobile terminal device according to the first embodiment of the present invention Sectional structure figure of the 2nd rotating shaft of the portable terminal device of Embodiment 1 of this invention Structure diagram of the first form of the portable terminal device of the first embodiment of the present invention The figure which shows the example of the display method in 2nd form of Embodiment 1 of this invention. Structure diagram of the first form of the portable terminal device of the second embodiment of the present invention Structure diagram of the first form of the portable terminal device of the third embodiment of the present invention Schematic structural diagram of a mobile terminal device according to a fourth embodiment of the present invention. The figure which shows another example of the portable terminal device of Embodiment 4 of this invention. Schematic structure diagram of a mobile terminal device according to a fifth embodiment of the present invention. Schematic structure diagram of a conventional stereo viewer

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Embodiment 1)
FIG. 1 is a schematic perspective view of the portable terminal device according to the present embodiment.

  Hereinafter, the first embodiment will be described by taking the case where it is applied to a foldable portable terminal device as an example. However, the same applies to a case where it is applied to a thin electronic device having a display element such as a portable car navigation system or a television. .

  The mobile terminal device according to the present embodiment is a foldable mobile terminal device including an upper housing 1 and a lower housing 3. The upper housing includes a first display element 2 (main display), a cover 5, and a binocular lens 6. Etc. The lower housing 3 has operation keys 12.

  The first display element 2 has a rectangular shape, and as shown in FIG. 1 (5), when the upper casing is rotated by the hinge 4 parallel to the long side, the long side of the first display element becomes horizontal, An operation key is arranged below the operation key. This is an example of a usage form of a conventional portable terminal device, and is referred to as a first form here.

  In addition, the use form displayed in the state where the long side of the first display element is vertical is also possible, and this is also included in the first form.

  In the first mode, the first display element displays information using a screen in a portrait orientation or a landscape orientation, as in the past. This is called the first display mode or normal display (2D display).

  As shown in FIGS. 1 (2) to (4), the cover 5 on the surface opposite to the first display element of the upper housing is rotated around the first rotation axis 8, and the second rotation axis 9 is further centered. By rotating the binocular lens 6, as shown in (4), the binocular lens and the first display element can be arranged in parallel at a predetermined distance and a stereo viewer for displaying a stereoscopic image A structure can be realized. This is called the second form.

  In the second mode, as shown in FIG. 1 (4), the first display element is divided into two screens, a left screen 11 and a right screen 10, and a left eye image and a right eye image are displayed respectively. This is called the second display mode or stereoscopic display (3D display). The binocular lens is composed of two convex lenses, and a user can reproduce a stereoscopic image (3D image) by viewing the left screen and the right screen with the left and right eyes, respectively.

  FIG. 2 shows a schematic cross-sectional structure diagram of the mobile terminal device of the present embodiment. FIG. 2 (1) is a first form for performing 2D display, and (4) is a second form for performing stereoscopic display.

  To change from the first configuration to the second configuration, the cover 5 is rotated about the first rotation axis until the clockwise rotation angle θ1 with respect to the upper housing 1 becomes about 270 degrees, and then the second rotation The binocular lens 6 is rotated about the axis until the clockwise rotation angle θ2 with respect to the cover 5 becomes about 270 degrees.

  If the first display element and the binocular lens are substantially parallel, both θ1 and θ2 need not be 270 degrees. For example, if the sum of θ1 and θ2 is about 540 degrees, the first display element and the binocular lens are substantially parallel.

  FIG. 3A is a structural diagram of the connection portion between the cover and the upper housing of the mobile terminal device of the present embodiment.

  As shown in FIG. 3 (1), the cover has a bearing 15 on the long side and a bearing 13 on the upper housing side, and the cover and the upper housing are coupled by the shaft 14 to complete the first hinge 16. To do. A surface on which the bearing 13 and the upper housing are fixed is referred to as a coupling surface, a coupling surface of the upper housing is referred to as a first coupling surface 22, and a coupling surface on the bearing side is referred to as a second coupling surface 23.

  A cross-sectional view of the first embodiment taken along the line A-A 'of the cover described in FIG. 3 (1) is shown in FIG. 3 (2). A frame 17 is provided on the upper casing side of the short side of the cover, and a groove 18 is provided on the upper casing side facing the frame 17. The frame 17 has an effect of preventing the cover from being bent and easily bent in the second embodiment. In the first embodiment, the cover 18 and the binocular lens can be accommodated in a thin shape without the protrusions of the frame 17 being obstructed by the overlap of the groove 18 and the frame 17.

  FIG. 4 is a structural diagram of the cover and the binocular lens in the second embodiment.

  From the first form, the first hinge 16 is rotated 270 degrees with respect to the upper housing 1, and then the second hinge 19 is rotated 270 degrees to obtain the second form of FIG. The frame 17 has an effect of preventing the cover from being bent by the weight of the binocular lens 6 or the like.

  The cover is made of, for example, a resin material. By making the cover as non-transparent as possible, external light is less likely to be inserted into the display element surface, and the display screen is easy to see.

The binocular lens 6 is composed of two convex lenses 7 and has the following three functions.
(1) The left and right screens displayed on the first display element 2 are viewed separately.
(2) Enlarge the screen display.
(3) Focus can be achieved even when the distance between the user and the left and right screens is short. Therefore, the ratio (viewing angle) of the screen to the user's field of view can be increased.

  In the display in the first form of the conventional portable terminal having a display screen of about 3 inches, as shown in FIG. 2 (1), the user's eyes and the screen may be used in a state where the distance is about 20 cm. Many. At this time, the viewing angle is about 20 degrees.

  On the other hand, in the 3D display mode of the second form, as shown in FIG. 2 (4), it becomes possible to focus at a short distance by using a convex lens for the binocular lens 6, so that the distance between the user's eyes and the screen is reduced. It can be as small as 10 cm. As a result, the viewing angle becomes 40 degrees or more, and a realistic 3D image (video) can be obtained.

  Note that the magnification of the convex lens is several times that used in a magnifying glass or the like, that is, a low magnification having a focal length of about 5 cm to 15 cm. If the magnification is increased too much, the left and right screens do not fit in the entire field of view, and only a part of them can be seen, and the pixel roughness becomes conspicuous. Conversely, if the magnification is too small, it becomes difficult to focus unless the distance between the user and the screen is increased, and the viewing angle becomes small.

  The convex lens may be a normal glass or transparent resin convex lens, but it can be made thinner by using a Fresnel lens.

  FIG. 5 shows a detailed sectional structural view of the first hinge. FIG. 5B shows a structure in which the cover 5 is rotated 270 degrees around the first rotation shaft 9. Since the first rotation shaft 9 is arranged closer to the surface opposite to the display element 2 of the upper casing, the first rotating shaft 9 is in contact with the outer side surface of the upper casing when the cover 5 rotates 270 degrees. , Will be able to hold in that position.

  Therefore, it becomes unnecessary to add a stopper part or the like so as not to rotate more than 270 degrees.

  FIG. 6 shows an example of a function of separating when stress is applied to the bearing 13 of the first hinge and the upper housing 1.

  In the second embodiment, if the external stress 24 is applied more than necessary in the direction shown in FIG. 6 due to, for example, dropping, the stress may concentrate on the first hinge and the part may be destroyed. Therefore, when the external stress 24 is applied, the function of removing the bearing 13 without destroying the components is effective.

  The bearing 13 has a function of sliding in a fixed direction by the first guide 20 as shown in FIG. The bearing 13 and the upper housing are fixed by a magnet 21 as shown in FIG. 6A, and the bearing 13 is held at a predetermined position when no stress is applied.

  With the above configuration, when an external stress 24 is applied as shown in FIG. 6 (2), the bearing 13 slides upward in the figure and finally comes off from the first guide 20 as shown in FIG. 6 (3). It becomes possible.

  FIG. 7 shows the bearing 13 and the upper housing that are not completely separated by using the spring 25. This prevents the cover from being lost even if the cover is detached from the housing. A material such as elastic rubber may be used instead of the spring.

  Note that the magnet of FIG. 6 and the spring of FIG. 7 may be combined.

  FIG. 8 is a schematic structural diagram in which the cover 5 and the binocular lens 6 are rotated by the second hinge 19.

  When the external stress 24 is applied, the stress concentrates on the second hinge 19.

  If the binocular lens 6 is a resin Fresnel lens, it can be bent by the stress 24 to reduce the stress concentration of the second hinge 19. Further, the stress concentration on the second hinge can be reduced because the bearing of the first hinge is displaced earlier due to external stress.

  Or you may add the function which the 2nd hinge 19 can isolate | separate from a cover similarly to FIG.

  FIG. 9 is an explanatory diagram of additional functions related to a method of housing the cover and the binocular lens in the upper housing 1 in the first embodiment.

  As shown in FIG. 9 (2), in the state where the cover is folded into the upper casing, the shaft of the first hinge protrudes outward (right side in the figure) from the side surface of the upper casing.

  Therefore, the function of sliding the bearing 13 to the left and providing the second guide 27 at the end of the groove 18 eliminates the protrusion of the first hinge by sliding the cover to the left, and the second guide and cover. By engaging, the cover can be fixed in close contact with the upper housing.

  FIG. 9 (4) shows a perspective view of the upper housing and the cover in a state where the cover is slid.

  FIG. 9 (5) shows a cross section (B-B ′) of the second guide in FIG. 9 (3). The tip of the cross section of the second guide has a hook-like structure, and a function that the cover cannot be removed in the direction perpendicular to the upper housing can be realized.

  FIG. 10A shows a method of displaying 2D information in a superimposed manner on the 3D image display screen according to the second embodiment.

  For example, when it is necessary to inform the user that a mail or a phone call has been received while displaying a 3D image or to convey a small amount of information to the user in a concise manner, 2D information is superimposed on the 3D screen. Need to be displayed. At this time, if 2D display is performed on both the left and right screens, the user needs to greatly change the left-right parallax. Therefore, as shown in FIG. 10A, by displaying the 2D information only on the right (or left) screen, the user can easily read the 2D information without changing the parallax.

  FIG. 10B is a method for performing 2D image display in the second embodiment.

  In recent years, display elements for mobile terminals have been improved in definition, and a large amount of information can be displayed. However, there is a problem that characters and images displayed on the display elements of mobile terminals are too small to be seen easily. there were.

  Therefore, the same image is displayed on the left screen 11 and the right screen 10, and an enlarged display of the 2D image can be realized by using a binocular lens for 3D display.

As described above, the portable terminal device according to the first embodiment can realize a thin electronic device while achieving both conventional 2D display and 3D display.
(Embodiment 2)
FIG. 11 is a schematic perspective view of the upper casing of the mobile terminal device according to the second embodiment. The structure of the cover, the binocular lens, and the first and second hinges is the same as that of the first embodiment, and a description thereof is omitted.

  A significant difference from the first embodiment is that a second display element 29 (sub-display) is provided on the back surface of the upper housing, that is, the surface opposite to the first display element (main display). In a conventional foldable mobile phone, display by a sub-display is generally used as a method of knowing mail reception information and the like with the upper casing closed.

As shown in FIG. 11 (1), the second display element 29 and the binocular lens 6 are arranged so that the transparent parts overlap each other, and further, the part of the cover where the second display element is arranged is made transparent. Accordingly, the second display element can be used even in the first form, that is, in a state where the cover is folded.
(Embodiment 3)
FIG. 12 is a schematic perspective view of the second embodiment of the portable terminal device according to the third embodiment.

  In the third embodiment, a function for adjusting the distance between the binocular lens and the first display element is added. Since other structures are the same as those in the first and second embodiments, description thereof is omitted.

In the first embodiment, the second hinge 19 and the cover 5 are fixed. However, in the present embodiment, as shown in FIG. 12, the second hinge 19 is separated from the cover 5, and the elongated second bearing 30 is provided. By attaching the third guide 31 to the cover, the distance between the binocular lens 6 and the cover can be increased. The position of the binocular lens can be adjusted according to the visual acuity of the user. For example, a person with myopia is easier to see when the distance between the binocular lens and the screen is increased.
(Embodiment 4)
FIG. 13 is a schematic perspective view of the mobile terminal device according to the fourth embodiment.

  In the third embodiment, two imaging elements (cameras) 33 for taking a three-dimensional image are added, and the other structures are the same as those in the first embodiment, and thus the description thereof is omitted.

  As shown in FIG. 13 (2), the two image sensors 33 are separated from each other by a distance of about 5 to 7 cm, and are arranged on the surface opposite to the first display element of the upper housing. A stereoscopic image can be captured by capturing an image with two imaging elements separated by a human eye distance (5 to 7 cm). At this time, as shown in FIG. 13 (1), the binocular lens 6 is disposed closer to the first hinge than the binocular lens so as not to overlap the image pickup device in a folded state. Thereby, since there is no binocular lens on an image pick-up element, thickness reduction is attained. By having the second transparent portion 32 on the cover on the image sensor when the cover 5 is folded, stereoscopic image shooting is possible even when the binocular lens is housed.

In the case where the mobile terminal device is a foldable terminal composed of an upper housing and a lower housing, a 3D camera may be arranged in the lower housing. FIG. 14 shows an example in which two image pickup devices 33 are arranged in the lower casing of the foldable portable terminal device.
(Embodiment 5)
FIG. 15 is a schematic perspective view of the binocular lens adapter according to the fifth embodiment.

FIG. 15 shows a component made up of a binocular lens and a cover as a binocular lens adapter 34 that is removable from the portable terminal 35. By fixing the bearing 13 to the back surface of the upper housing 1 with the display element of the portable terminal 35, the second display mode (3D display) using the above-described foldable binocular lens becomes possible. For example, double-sided tape or screws are used for fixing.
The portable terminal 35 does not need to be a foldable portable terminal, and may be an electronic device having a display element. The binocular lens adapter 34 may be fixed to a housing opposite to the display element.

  The present invention is useful as, for example, a portable terminal device, and can be used in various electronic devices such as a television, a cellular phone, a portable terminal, and a car navigation system.

DESCRIPTION OF SYMBOLS 1 Upper housing | casing 2 1st display element 3 Lower housing | casing 4 Folding hinge 5 Cover 6 Binocular lens 7 Convex lens 8 1st rotating shaft 9 2nd rotating shaft 10 Right screen 11 Left screen 12 Operation key 13 Bearing 14 Shaft 15 Cover Side bearing 16 First hinge 17 Frame 18 Groove 19 Second hinge 20 First guide 21 Magnet 22 First coupling surface 23 Second coupling surface 24 External stress 25 Spring 26 Spring retainer 27 Second guide 28 First transparent portion 29 2nd display element 30 2nd bearing 31 3rd guide 32 2nd transparent part 33 Image pick-up element 34 Binocular lens adapter 35 Mobile terminal 36 Arm 37 Stereo photograph 38 Photo frame 39 Rotation axis

Claims (18)

In an electronic device having a rectangular first display element, a housing to which the first display element is fixed, a cover of the housing, and a binocular lens,
The housing and the cover are coupled by a first hinge having a first rotation shaft that is parallel to the long side of the display element and located at an end of the housing;
The cover and the binocular lens are coupled by a second hinge having a second rotation axis parallel to the first rotation axis,
A first display mode for displaying the long side of the first display element in a horizontal or vertical state;
An arrangement in which the long side of the first display element is horizontal and the display element is divided into two screens, a left image and a right image, and a stereoscopic image is displayed on the divided screen. Has a second display mode to display,
In the first display mode, the binocular lens and the cover are folded around the second rotation axis, and then the cover and the housing are folded around the first rotation axis. Works with
In the second display mode, after the cover is rotated at a first rotation angle of about 270 degrees from the first form about the first rotation axis, the binocular lens is moved about the second rotation axis. An electronic apparatus that operates in a second form in which the binocular lens and the display element are arranged substantially in parallel by rotating at a second rotation angle of about 270 degrees. Having a frame on the short side of the cover;
The electronic device according to claim 1, wherein the frame is disposed at a position protruding toward the housing in the first embodiment. The first rotating shaft is disposed at a position close to a surface opposite to the first display element of the housing, and the cover is in contact with a side surface of the housing in the second embodiment. The electronic device according to claim 2. The electronic device according to claim 1, wherein a part or all of the cover is opaque. The cover is coupled to the housing via a bearing that supports the first rotation shaft, and the bearing and the housing are separated when a certain level of stress is applied between the bearing and the housing. The electronic device according to any one of claims 1 to 4, wherein the electronic device is characterized in that The electronic apparatus according to claim 5, wherein the bearing and the housing are coupled by a magnet. The electronic device according to claim 4, wherein the bearing and the housing are coupled via a stretchable elastic part. The first coupling surface of the housing and the second coupling surface of the bearing are in contact with each other so that the cover and the housing are coupled, the bearing is parallel to the second coupling surface, and the outside of the housing The electronic device according to claim 4, further comprising means for sliding in a direction. A second display element is fixed to the surface of the housing opposite to the first display element, and a part or all of the cover is transparent,
In the first form,
The second display element is disposed so as to overlap with a lens transparent portion of the binocular lens; and
The electronic device according to claim 1, wherein a transparent portion of the cover of the cover overlaps with the lens transparent portion. The electronic apparatus according to claim 1, wherein the binocular lens is a Fresnel lens. 11. The electronic apparatus according to claim 1, further comprising a unit that adjusts a distance between the first display element and the binocular lens in the second display mode. 2. The display device according to claim 1, wherein in the second display mode, the first display element displays display information superimposed on the stereoscopic image only on one of the divided left screen and right screen. Item 12. The electronic device according to any one of Items 11. 13. The electronic device according to claim 1, further comprising a function of displaying the same information on the divided left screen and right screen in the second display mode. The first image sensor and the second image sensor are arranged at a fixed distance on the opposite surface of the housing from the display element. In the second embodiment, the transparent portion of the cover is connected to the first image sensor. The electronic apparatus according to claim 1, wherein the electronic apparatus overlaps with the second imaging element. 2. In the second embodiment, the first image sensor and the second image sensor are arranged at positions close to the first rotation axis and not overlapping the binocular lens. The electronic device according to claim 14. The electronic device includes a first housing including a first display element and a second housing having a key operation unit, and the electronic device can be folded around a long side of the first housing. The mobile terminal device according to any one of claims 1 to 15. The first imaging element and the second imaging element are provided on the back surface of the key operation unit of the second casing, and the first imaging element and the second imaging element have a function of capturing a stereoscopic image. The portable terminal device according to claim 16. A binocular lens adapter for stereoscopic image display, which includes the cover, the binocular lens, the first hinge, and the second hinge and is detachable on a surface of the housing opposite to the display element.

Images