JP2013190450A - Stereoscopic viewer and display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To downsize a display device with a stereoscopic viewer and improve portability thereof.SOLUTION: A detachable stereoscopic viewer includes: a binocular lens 2; an arm 1; a partition plate 3; and support means 4. The binocular lens and the arm are connected by a first rotary shaft 5, and the arm and a partition plate are connected by a second rotary shaft 6 perpendicular to the first rotary shaft. When the partition plate and the arm are perpendicular to each other, pinching a display device by a side face of the partition plate and the support means allows the stereoscopic viewer to be attached to the display device. The stereoscopic viewer is capable of folding the partition plate and the binocular lens by the first rotary shaft and the second rotary shaft, thereby allowing the stereoscopic viewer to be detachable to facilitate switching between 3D display and 2D display and provide high portability.

Description

  The present invention relates to a display device used in a thin mobile phone, a mobile terminal, and an electronic device, and a stereo viewer capable of stereoscopic display.

  As one of the 3D (stereoscopic) display methods, a stereo viewer that displays a 3D image by viewing side-by-side stereo images in which the left image of the left viewing line and the right image of the right viewing line are arranged side by side with the left and right eyes respectively. There is a method used.

This method can reproduce a realistic 3D image using a small display element. (For example, Patent Documents 1 and 2)
FIG. 6 shows a stereoscopic (3D) photo reproduction apparatus using a conventional stereo viewer.

  Stereo images 24 are arranged in accordance with the photo frame 25, and the left and right images can be viewed with the left and right eyes through the binocular lens 2 composed of the two convex lenses 26 arranged at a distance from the photo position, thereby enabling stereoscopic display. .

  The photographic frame 25, the arm plate 1, and the binocular lens 2 have a structure that can be folded by two rotating shafts 27, as shown in FIG.

In addition, a method of reproducing a stereo image displayed on a display element 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 has been proposed. The structure figure of a 2nd prior art example is shown. (For example, Patent Document 3)
It has an arm 1 structure that can be attached to the outer frame of the display element 11, and can be fixed to the housing of the electronic device using, for example, screws 21 as shown in the figure.

  In addition, a lens part structure that can be attached to and detached from a display element such as a portable terminal and that can be folded has been proposed. (For example, Patent Document 4)

Registered Utility Model No. 3025841 No. 03-010489 JP 2004-177431 A JP 2004-347823 A

  If a thin stereo viewer having a folding function as described in Patent Documents 1 and 2 can be fixed on the display element of an electronic device, a stereo viewer that is easy to carry can be realized, but there is a structure suitable so far. I did not.

  An electronic apparatus 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 outside the display element. In portable terminals that require miniaturization, the housing frame is generally designed to be narrow, so when trying to fix the arm, it is sandwiched with a strong force using a fixing screw or the like as described in Patent Document 3, It was necessary to give consideration so that a large stress was not applied to the display element. Furthermore, it takes time and labor to fix and remove the arm, and when the arm is removed, the arm and the binocular lens component have a structure that is inconvenient to carry.

  Patent Document 4 is not a stereo viewer, but has a structure in which a magnifying lens can be attached to and detached from a display element and can be folded thinly.

  However, since it is necessary to hold a part in accordance with the outer shape of the casing of the mobile terminal, there is a problem that it cannot be used when the terminal casing structure (size or thickness) changes.

  The present invention has been made to solve the above-described problems, and an object thereof is to realize a stereo viewer that can be folded, is thin and easy to carry, and can be easily attached to and detached from a thin electronic device having a display element. To do.

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

  The present invention relates to a stereo viewer that can be attached to and detached from a display device having a display element capable of stereo display, and includes a binocular lens composed of two convex lenses, an arm, a partition plate, and a supporting means. The arm and the binocular lens are The variable range of the first angle formed by the arm and the binocular lens is at least 0 to 90 degrees, and the partition plate has the arm and the second rotation shaft. The variable range of the second angle formed by the arm and the partition plate is at least 0 to 90 degrees, and the second rotation axis is perpendicular to the first rotation axis. The intersection of the moving axis and the second rotation axis is substantially at the center of the binocular lens, the support means is disposed on the opposite side of the binocular lens of the arm, and there is a gap between the support means and the partition plate, and the partition plate is the support means Close to the second pivot axis It has a linear a first side, having a fixing means for fixing by sandwiching the display device into the gap between the first side and the support means.

  Furthermore, the arm of the present invention and the supporting means are coupled by a third hinge having a third rotating shaft, and the third angle formed by the arm and the supporting means can be changed to 0 degrees or more. It has spring means for applying a force in the direction in which the third axis formed by the support means and the arm is 90 degrees or less, with the movement axes being substantially parallel.

  Furthermore, the partition plate of the present invention has a second side perpendicular to the second rotation axis on the side closer to the binocular lens, and when the second angle is 0 degree, the second side is substantially the same as the third rotation axis. Overlap.

  Furthermore, it has an elastic material on the side surfaces of the first side and the second side of the present invention.

  Further, the binocular lens of the present invention is a Fresnel lens. The binocular lens has a Fresnel lens formed on the side where the partition plate is located, and has a transparent protective plate on the surface where the Fresnel lens is formed.

  According to the present invention, a thin and easy-to-carry stereo viewer that can be folded and attached to and detached from a portable terminal device can be realized.

Schematic structure diagram of stereo viewer according to Embodiment 1 of the present invention Schematic sectional view of the stereo viewer according to the first embodiment of the present invention. The perspective view of the stereo viewer according to the first embodiment of the present invention The figure which shows the lens and the damage prevention method of a display element of Embodiment 1 of this invention. Schematic structural diagram of a stereo viewer according to the second embodiment of the present invention Schematic structure diagram of a conventional stereo viewer Second 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 on the assumption that a stereo viewer is mounted on a portable terminal device. However, the same applies to a case where the stereo viewer is mounted on a thin electronic device having a display element such as a portable car navigation system or a television. It is.

  In addition, although the description will be made assuming that the display screen is divided into two and the left and right images are displayed on the respective screens and the stereoscopic image is displayed through the binocular lens, the same image may be displayed instead of the left and right images. At this time, the screen of the display element can be enlarged and viewed by passing through a binocular lens.

  FIG. 1 is a schematic structural diagram of the stereo viewer according to the first embodiment.

  FIG. 1 (1) shows a form of a stereo viewer when mounted on a portable terminal.

  FIG. 1B shows a form of the stereo viewer in a state where it is detached from the portable terminal and folded.

  FIG. 1 (3) shows a configuration diagram when a stereo viewer is attached to the portable terminal.

  The stereo viewer includes an arm 1, a binocular lens 2, a partition plate 3, and support means 4.

  The arm 1 and the binocular lens 2 are coupled by a first hinge having a first rotation shaft 5, and the first angle formed by the arm 1 and the binocular lens 2 can be changed from at least 0 degrees to 90 degrees.

  The partition plate 3 and the arm 1 are connected by a second hinge having a second rotation shaft 5. The second angle formed by the arm 1 and the partition plate 3 can be changed at least from 0 degree to 90 degrees.

  As shown in FIG. 1 (1), the second rotation axis passes through the center of the first hinge, that is, the center line between the two lenses of the binocular lens, and is substantially perpendicular to the first rotation axis. The binocular lens 2 and the arm 1 can be supported so as to be vertical when the partition plate stands upright with respect to the arm surface.

  The supporting means 4 is coupled by a third hinge having a third rotating shaft 7, and the third angle formed by the arm 1 and the supporting means 4 can be changed to 0 ° or more, and the first rotating shaft 5 and the third rotating shaft The axis 7 is substantially parallel.

  As shown in FIG. 1 (3), the stereo viewer is fixed to the casing of the portable terminal with the display element sandwiched between the support means 4 and the partition plate 3.

  In the first embodiment, it is assumed that the arm 1 and the support means 4 have a plate shape, but may have a rod shape, for example. A plate-like shape is desirable for thinning when folded.

  FIG. 2 shows a cross-sectional structure diagram for explaining details of the method for attaching and detaching the stereo viewer.

  3 (1) and (2) are perspective structural views of the stereo viewer. FIG. 3 (3) is a plan view of the stereo viewer.

  FIG. 2 (2) shows a state where the support means 4, the partition plate 3, and the binocular lens 2 are set up vertically with respect to the arm 1 from the folded state of FIG. 2 (1).

  The partition plate 3 has a second side 13 on the side surface close to the binocular lens 2, has a first side 12 on the side surface close to the support means 4, and both the first side and the second side have the second rotation shaft 6. And vertical.

  When the binocular lens 2 is in contact with the second side, the binocular lens 2 can be held perpendicular to the arm.

  Here, in order to make the angle between the binocular lens 2 and the arm 1 vertical, the structure is supported by a partition plate, but other means for setting the angle on the first hinge without using the partition plate may also be used. I do not care.

  As shown in FIG. 2 (3), the portable terminal housing 8 is sandwiched between gaps 14 formed between the first side of the partition plate 3 and the support means 4.

  As shown in FIG. 2 (4), when the second side of the partition plate 3 and the display element surface are in contact with each other, the arm 1 and the display element 11 surface are held vertically, and the binocular lens 2 and the display element 11 are separated by a specific distance. Can only be placed apart and in parallel.

  As shown in FIG. 2 (5), for example, a spring 15 is incorporated in the third hinge 7 of the support means 4, and a force is applied in a direction in which the third angle formed by the support means 4 and the arm is directed to 0 degrees. It has become. Therefore, a part of the support means 4 has a function of contacting the back surface of the housing 8 and fixing the housing.

  Here, the case where the first side and the second side are perpendicular to the second rotation axis 6 has been described. However, if the first side and the second side are parallel, the first side and the second side are the second time. The moving axis need not be completely perpendicular. However, if it deviates greatly from the vertical, the arm surface of the stereo viewer is inclined from the horizontal, and it becomes difficult to stably attach the mobile phone to the portable terminal, so the first side and the second side are perpendicular to the second rotation shaft 6. It is desirable.

  As described above, “vertical” in the present embodiment means that the angle between certain parts is 90 degrees, but there may be a deviation of several degrees.

  The distance between the binocular lens 2 and the display element 11 is determined by the length of the partition plate 3 in the second rotation axis direction. By setting the value slightly smaller than the focal length of the two convex lenses of the binocular lens, the user can enlarge and display the display screen through the lens.

  Further, when a function of changing the length of the arm 1 or the partition plate 3 in the second rotation axis direction is added, the user can freely adjust the distance between the binocular lens 2 and the display element 11 according to the user's visual acuity. However, in this embodiment, a description of a specific structure example is omitted.

  As shown in FIG. 3 (3), the first rotation shaft 5 that couples the arm 1 and the binocular lens 2 and the second rotation shaft 6 that couples the arm 1 and the partition plate 3 are vertical, and the partition plate 3 is When folded, the second side 13 overlaps the first rotation shaft 5. Thereby, the binocular lens 2 and the arm 1 can be made vertical when the partition plate is erected vertically with respect to the arm surface.

  The first side 12 of the partition plate is perpendicular to the second rotation shaft 6. When the partition plate is folded, the first side 12 is parallel to the third rotation shaft 7, and a gap 4 exists between the first side 12 and the third rotation shaft 7.

  In order to prevent the binocular lens from protruding from the arm when the binocular lens 2 is folded, the length A2 of the arm 1 in the first rotation axis direction is smaller than the binocular lens length A3.

  Since the partition plate 3 is arranged at the boundary between the left and right screens of the display element in a state where it is attached to the mobile terminal, the partition plate 3 does not hinder stereoscopic display. Rather, the presence of the partition plate makes it possible to separate the left and right screens, and has the advantage of facilitating stereoscopic viewing.

  Therefore, it is desirable that the length A1 of the first side of the partition plate 3 is equal to the boundary line of the left and right screens of the display element. However, if A1 exceeds A2 / 2, the partition plate protrudes from the arm width A2 when folded, and therefore, the length A1 of the first side 12 of the partition plate 3 is preferably smaller than half of the arm width A2. .

  With this structure, if the thickness of the portable terminal casing is smaller than the gap 4, the stereo viewer can be easily attached.

  FIG. 3 (4) shows a structural example in which the fourth rotation shaft 16 is further provided and the stereo viewer of FIG. 3 (1) is further folded once. Since this reduces the size, for example, as shown in FIG. 3 (5), the stereo viewer can be easily carried by fixing it to the back surface of the portable terminal housing. For example, a magnet is used for fixing, but other methods may be used.

  FIG. 4 shows a configuration diagram when a Fresnel lens is used as a binocular lens. By using a Fresnel lens, for example, the lens thickness can be reduced to about 1 mm or less, and the stereo viewer can be reduced in thickness.

  As shown in FIG. 4 (2), it has a Fresnel lens surface 17 on which a Fresnel lens is formed and a flat surface 18, and the Fresnel lens surface 17 desirably faces the partition plate 3 side.

  This is because the dotted optical path crosses the flat surface 18 almost perpendicularly as shown in FIG. 4B, so that the image viewed through the lens is hardly distorted.

  If the Fresnel lens surface 17 is arranged on the side opposite to the partition plate 3, the angle between the optical path and the flat surface 18 is not vertical as shown in FIG.

  Since the Fresnel lens processed surface 17 is easily damaged, the transparent plate 19 can be prevented from being damaged by overlapping the Fresnel lens surface 17 as shown in FIG.

  It is desirable that both surfaces of the transparent plate 19 have antireflection films. An air layer is required between the transparent plate and the Fresnel lens processed surface 17, and it is desirable to fix the periphery with an adhesive 20 or the like as shown in FIG.

  Further, in order not to damage the Fresnel lens 2 and the display element surface, an elastic material 21 such as rubber is applied to the first side 12 and the second side 13 of the partition plate 3 as shown in FIG. Provide. Thereby, the partition plate 3 can prevent the lens and the display element surface from being scratched. Further, it is possible to prevent the partition plate 3 from slipping with respect to the lens surface and the display element surface, and to prevent the stereo viewer from being displaced.

With the above configuration, a stereo viewer that is foldable, thin, and easy to carry can be realized.
(Embodiment 2)
FIG. 5 is a perspective structural view of the stereo viewer according to the second embodiment. The basic structure and the like are the same as those in the first embodiment, and a description thereof will be omitted.

  A difference from the first embodiment is a fixing method using a supporting means.

  As shown in FIG. 5 (1), two or more screw holes 23 are formed in the support means, and the two screw holes are located on the opposite side across the partition plate 3. It is possible to fix the rear surface of the housing with the screw 22 fixed to the screw hole 23.

  A stopper 24 is provided so that the third angle between the support means and the arm does not exceed 90 degrees. The spring 15 required in the first embodiment is not necessary.

  A spring may be used instead of the screw.

  Other fixing means for fixing the support means and the rear surface of the housing are also conceivable. For example, the position regulation and fixing may be performed by using magnets or providing concave and convex portions on the partitioning plate side surface of the support means and the rear surface of the housing, and fitting the concave and convex portions.

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

DESCRIPTION OF SYMBOLS 1 Arm 2 Binocular lens 3 Partition plate 4 Support means 5 1st hinge (1st rotation axis)
6 Second hinge (second rotation axis)
7 Third hinge (third pivot)
8 Housing 9 Left screen 10 Right screen 11 Display element 12 First side 13 Second side 14 Gap 15 Spring 16 Fourth hinge (fourth rotation axis)
17 Fresnel lens processed surface 18 Flat surface 19 Transparent plate 20 Adhesive 21 Elastic material 22 Screw 23 Screw hole 24 Stopper 25 Photo 26 Photo frame 27 Convex lens 28 Rotating shaft 29 Conventional arm A1 Length of first side of partition plate A2 Arm Width in the first rotation axis direction A3 Length in the first rotation axis direction of the binocular lens A4 Length in the second rotation axis direction of the arm

Claims (14)

In a stereo viewer detachable from a display device having a display element capable of stereo display,
A binocular lens composed of two convex lenses, an arm, a partition plate, and support means;
The arm and the binocular lens are coupled by a first hinge having a first rotation axis, and a variable range of the first angle formed by the arm and the binocular lens is at least 0 to 90 degrees,
The partition plate is coupled with the arm and a second hinge having a second rotation shaft, and the variable range of the second angle formed by the arm and the partition plate is at least 0 to 90 degrees,
The second rotation axis is perpendicular to the first rotation axis;
The intersection of the first rotation axis and the second rotation axis is substantially at the center of the binocular lens,
The support means is disposed on the opposite side of the arm to the binocular lens, and has a gap between the support means and the partition plate,
The partition plate has a first side perpendicular to the second rotation axis on the side close to the support means,
A stereo viewer comprising fixing means for fixing the display device by being sandwiched in the gap between the first side and the support means. The arm and the support means are coupled by a third hinge having a third rotation shaft, and a third angle formed by the arm and the support means is variable to 0 degrees or more,
The first rotation axis and the third rotation axis are substantially parallel;
2. The stereo viewer according to claim 1, further comprising spring means for applying a force in a direction in which a third angle formed by the support means and the arm is 90 degrees or less. The stereo viewer according to claim 1, wherein the support means is plate-shaped. The partition plate has a second side perpendicular to the second rotation axis on a side close to the binocular lens, and the second side is set to the third rotation when the second angle is 0 degree. The stereo viewer according to claim 1, wherein the stereo viewer substantially overlaps with the axis. The stereo viewer according to claim 1, wherein the fixing means includes a screw part. The stereo viewer according to any one of claims 1 to 5, wherein a concave portion or a convex portion for positioning is provided on a side surface on the gap side of the support means. The stereo viewer according to claim 1, wherein an elastic material is provided on a side surface of the first side. The stereo viewer according to any one of claims 1 to 7, further comprising an elastic material on a side surface of the second side. The arm has a plate-like structure, and the length of the arm in the first rotation axis direction is equal to or longer than the length of the binocular lens in the first rotation axis direction. The stereo viewer according to claim 1. The stereo viewer according to claim 1, wherein the binocular lens is a Fresnel lens. The stereo viewer according to any one of claims 1 to 10, wherein the binocular lens is formed with the Fresnel lens on a side where the partition plate is located. The stereo viewer according to claim 11, wherein the binocular lens has a transparent protective plate on a surface on which the Fresnel lens is formed. The display apparatus which has a stereo viewer of any one of Claims 1-12. The display device according to claim 13, further comprising means that can be fixed to or stored in the display device in a state where the first angle and the second angle of the stereo viewer are folded so as to be 0 degrees.

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