JP2021114756A - Image display device and handle member - Google Patents

Abstract

To easily attach a handle even to an image display device of a small size while reducing misoperation of operation buttons of an image display device.SOLUTION: The image display device which a handle member to be grasped by an observer can be attached thereto and displays an image to the observer comprises: operation buttons arranged on a predetermined face of the image display device; and a protrusion adjacent to the operation buttons and projecting from the predetermined face more than the operation buttons. The handle member can be attached to the image display device so as to cover the operation buttons therewith and the protrusion is used for positioning when the handle member is attached to the image display device.SELECTED DRAWING: Figure 7

Description

The present invention relates to an image display device and a handle member.

In recent years, an image display device (head-mounted display: HMD) that is worn on the head of an observer and displays an image in front of the observer's eyes has been used. HMDs have artificial reality (virtual reality: VR) and mixed reality (mixed reality: MR) because they can easily view images on a large screen and stereoscopic viewing is easy. It is used as a device that allows you to experience.

The HMD for realizing MR superimposes a photographing unit for capturing an image of a subject corresponding to the left and right eyes of the observer, an image captured by the photographing unit, and a 3DCG image created by a PC or the like. It has a display unit for displaying and an observation optical system for projecting onto an observer. Here, PC is an abbreviation for Personal Computer, and 3DCG is an abbreviation for Three Dimensional Computer Graphics.

The image projected on the observer is displayed on a display element such as a small liquid crystal panel corresponding to the left and right eyes of the observer, and this image is displayed via the observation optical system corresponding to the left and right eyes of the observer. After enlarging, it is projected onto the left and right eyes of the observer.

The captured image of the subject is an image having parallax corresponding to both the left and right eyes. Furthermore, by creating a parallax image corresponding to the left and right eyes of the observer and superimposing it on the captured image, the 3DCG image can be expressed as if a virtual 3DCG image actually exists. Is possible.

At this time, operation buttons are also provided on the HMD for actions and confirmations on the observation target.

It is also expected that the HMD will be attached to the head and made hands-free, and will be used for verification purposes of various tasks. It is also used as an HHD) form.

Patent Document 1 discloses a configuration that supports both HMD and HHD and enables the operation buttons to be operated while holding the hand even in the HHD form.

Japanese Unexamined Patent Publication No. 2017-15917

However, in the technique described in Patent Document 1, an operation button for operating the device is provided on the side surface. Therefore, when used as an HHD, a finger may reach the operation button from the rod-shaped handle for holding the device, which may lead to erroneous operation. In addition, when the device is used as an HMD, the operation button may be accidentally pressed when the device is gripped and moved in order to swing the device and place it at an optimum position with respect to the eyeball. Further, when used as an HHD, it is difficult to secure a space for attaching the handle to the device due to the miniaturization of the device.

The present invention has been made in view of the above problems, and is a technique for easily attaching a handle to a small image display device while reducing erroneous operation of operation buttons of the image display device. The purpose is to provide.

An image display device according to an aspect of the present invention that achieves the above object is
An image display device capable of mounting a handle member gripped by an observer and displaying an image on the observer.
An operation button arranged on a predetermined surface of the image display device and
A protrusion adjacent to the operation button and protruding from the predetermined surface of the operation button is provided.
The handle member can be attached to the image display device so as to cover the operation button.
The protrusion is characterized in that it is used for positioning when the handle member is mounted on the image display device.

According to the present invention, it is possible to easily attach a handle to a small image display device while reducing erroneous operation of operation buttons of the image display device.

A perspective view of the image display device according to the first embodiment as viewed from the observer side. The rear view which shows the eye width adjustment method of the image display device which concerns on Embodiment 1. FIG. A perspective view of the image display device according to the first embodiment as viewed from the front side. FIG. 5 is a perspective view when the image display device according to the first embodiment is in the HMD form. FIG. 5 is a side view showing a position adjustment state when the image display device according to the first embodiment is in the HMD form. FIG. 5 is a side view showing a flip-up state when the image display device according to the first embodiment is in the HMD form. The perspective view explaining the upper surface including the operation part of the image display device which concerns on Embodiment 1. FIG. FIG. 3 is a perspective view when the image display device according to the first embodiment is in the HHD form. The upper side perspective view of the handle member which makes the image display device which concerns on Embodiment 1 HHD form. The lower side perspective view of the handle member which makes the image display device which concerns on Embodiment 1 HHD form. The perspective view explaining the lower surface side of the image display device which concerns on Embodiment 1. FIG. FIG. 5 is a perspective view showing a state in which the rubber member of the handle member that makes the image display device according to the first embodiment into the HHD form is removed. The figure which shows the floor-standing state when the image display device which concerns on Embodiment 1 is in HHD form. A perspective view of the image display device according to the second embodiment and its HHD form as viewed from the front side. FIG. 3 is a perspective view illustrating an upper surface including an operation unit of the image display device according to the second embodiment. The lower side perspective view of the handle member which makes the image display device which concerns on Embodiment 2 HHD form.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. The following embodiments do not limit the invention according to the claims. Although a plurality of features are described in the embodiment, not all of the plurality of features are essential to the invention, and the plurality of features may be arbitrarily combined. Further, in the attached drawings, the same or similar configurations are designated by the same reference numbers, and duplicate explanations are omitted.

(Embodiment 1)
FIG. 1 is a perspective view showing an example of an image display device 100 according to the present embodiment. The image display device 100 includes lenses 10L and 10R as an image display unit, and an observer can observe the image by looking through the lenses 10L and 10R. The lenses 10L and 10R are observation optical systems such as prisms and lenses that magnify and guide an image of a display device (not shown) such as an LCD or OLED included in the image display device 100. Here, LCD is an abbreviation for Liquid Crystal Display, and OLED is an abbreviation for Organic Light Emitting Diode. Hoods 11L and 11R are provided around the lenses 10L and 10R, and as shown in FIG. 2, the observer operates the hoods 11L and 11R to position the lenses 10L and 10R according to the observer's eye width. It is configured to be adjustable to the left and right.

Subsequently, FIG. 3 is a perspective view showing the opposite sides of the lenses 10L and 10R of the image display device 100 according to the present embodiment. The image display device 100 includes shooting cameras 20L and 20R and alignment cameras 21L and 21R. The photographing cameras 20L and 20R are stereo cameras that acquire a real image of the surroundings to be displayed to the observer through the lenses 10L and 10R. The alignment cameras 21L and 21R are stereo cameras for extracting feature points such as markers and edges of objects from the acquired image to acquire the position and orientation of the image display device 100.

In the present embodiment, the photographing cameras 20L, 20R and the alignment cameras 21L, 21R are separately provided, and the alignment cameras 21L, 21R are monochrome, but are high by utilizing a high angle of view, a high shutter speed, a long baseline length, and the like. It enables accurate and highly fault-tolerant alignment. However, it is also possible to acquire both the image to be displayed by the photographing cameras 20L and 20R and the alignment information. Further, the alignment cameras 21L and 21R may be replaced with sensors (sensors that acquire distance information) using ultrasonic waves, infrared rays, or the like.

The image display device 100 exchanges position information and images with an external PC or controller (not shown) via a cable 90 to generate and display a display image in which CG (Computer Graphics) is superimposed on a real image. .. This allows the observer to observe the image through the lenses 10L and 10R. Further, the image display device 100 includes operation buttons 30A to 30C, and can perform an observer's instruction operation, a power supply operation, and the like (the operation button 30A is shown in FIG. 7). The operation button is a position that can be operated when the observer holds the image display device 100 with one hand (for example, the upper surface of the image display device 100, but the operation button is not limited to the upper surface, and may be any predetermined surface. Good.) Is placed. As a result, the buttons can be operated with one hand while suppressing the misalignment between the observation optical system and the observer due to the reaction of the operation when the operation buttons are operated, which may occur when the operation buttons are arranged on the side surface. Is possible.

FIG. 4 is a diagram showing a head-mounted display (HMD) form in which the image display device 100 according to the present embodiment can be attached to the head of an observer. By connecting the head-mounted unit 200 to the image display device 100, it is possible to perform hands-free image observation. In this HMD mode, as shown in FIG. 5, the image display device 100 is swung, and the dial 210 is operated to move in the vertical direction (not shown). As a result, the lenses 10L and 10R can be adjusted to the optimum observation position for the observer in combination with the eye width adjustment function described above. The head-mounted unit 200 can be coupled to the image display device together with or optionally the handle member described later. In this way, the convenience of the observer can be improved by using the image display device for both the HHD and the HMD.

Further, as shown in FIG. 6, the image display device 100 can be set to the flip-up position by increasing the swing range, and it is possible to temporarily look directly at the outside without removing the HMD from the head. ing. In the present embodiment, since the cable 90 projects laterally from the image display device 100, it can be flipped up without interfering with the head mounting unit 200.

In addition, by grasping the top and bottom of the image display device 100 with one hand, it is possible to operate any of the operation buttons 30A to 30C while holding the image display device 100 so as not to move with respect to the observer's head. It has become.

For example, when the operation button is provided on the side surface of the image display device 100, the image display device 100 is applied to the observer's head because there is no part supported by the thumb or the like of the same hand so as to correspond to the force of pressing the operation button. May shift. Alternatively, it may be necessary to support it with the other hand. Therefore, the advantage of hands-free may be diminished. On the other hand, according to the arrangement of the operation buttons 30A to 30C of the present embodiment, such a situation can be avoided.

On the other hand, as described with reference to FIGS. 4 and 5, the peripheral parts of the operation buttons 30A to 30C are gripped even during the swing operation of the image display device 100, so that the operation buttons 30A to 30C are accidentally pressed. there is a possibility. If an attempt is made to separate the operation button and the grip portion during the position adjustment operation in order to avoid this, the outer shape of the image display device 100 becomes large.

Therefore, in the present embodiment, in order to prevent these, protrusions 31L and 31R are provided in the vicinity of the operation buttons 30A to 30C as shown in FIG. 7 when the image display device 100 is viewed from diagonally above. This makes it possible to reduce the possibility that the observer accidentally touches and presses the operation button. Further, although the observer cannot visually recognize the operation buttons while observing the image, it becomes easy for the observer to operate the operation buttons 30A to 30C by using the protrusions 31L and 31R as clues.

As described above, the HMD form of the image display device 100 according to the present embodiment has been described.

On the other hand, the fixing method of attaching to the head makes it difficult to handle when changing the wearer when a plurality of people use the same image display device. There may also be observers who care about cleanliness.

Therefore, it is conceivable to make the image display device 100 a handheld form. FIG. 8 is a diagram showing a state when the image display device 100 according to the present embodiment is in a handheld form (handheld display: HHD). Handle members 80L and 80R are attached to the image display device 100. When the handle members 80L and 80R are mounted on the image display device 100, they are mounted outside the angle of view range of the alignment cameras 21L and 21R and the detection range of the sensor. As a result, by gripping the handle member, the observer's finger or the like does not enter the field of view of the camera or the sensor, and usability is improved. Further, even when the observer does not notice that the position of the finger is inappropriate, the finger can be guided out of the range of the camera or the sensor without the observer consciously.

The cover 89 is a cover for hiding the mounting shape after removing the head mounting unit 200.

9 and 10 are perspective views of the handle members 80L and 80R. As shown in FIGS. 9 and 10, the handle members 80L, 80R include screw holes 81L, 81R, protrusions 82L, 82R, screw holes 83L, 83R, recesses 84L, 84R, and grooves 85L, 85R. It is equipped with rubber 86L, 86R and handle button shape members 87L, 87R.

The screw holes 81L and 81R are fixed with screws according to the screw hole shapes 35L and 35R of the image display device 100 shown in FIG. At this time, the protrusions 82L and 82R are positioned by engaging (for example, fitting) with the recesses around the screw hole shapes 35L and 35R.

Similarly, the screw holes 83L and 83R are fixed with screws according to the screw hole shapes 36L and 36R of the image display device 100 shown in FIG.

The dents 84L and 84R are dents for finger grip. Further, the handle members 80L and 80R are further provided with groove portions 85L and 85R. The groove portions 85L and 85R are positioned according to the protrusions 31L and 31R of the image display device 100. As described above, the handle members 80L and 80R are positioned and fixed to the image display device 100, and serve as a handle held by the observer in the HHD form.

In this embodiment, screw fixing has been described as an example for reliable and strong fixing, but the handle members 80L, 80R can be used without snap-fitting, locking claws, or screw fixing in the shape of this embodiment. It is also possible to fit and fix using the rigidity of. Even in that case, positioning the protrusions 31L and 31R with respect to the groove portions 85L and 85R is the same.

Further, the rubbers 86L and 86R shown in FIG. 9 are removable and are attached to the handle members 80L and 80R at positions facing the operation buttons 30A to 30C. The removed state has the shape shown in FIG. The rubbers 86L and 86R may be elastic members having other elasticity. As a result, when the handle member is gripped, the elastic member with high frictional force makes it difficult to slip, and even if the operation button is covered and hidden, it is a flexible material, so the operation button can be operated from above. Become.

As shown in FIGS. 10 and 12, handle button-shaped members 87A to 87C are provided on the handle members 80L and 80R so as to be swingable by slits. The handle button-shaped member comes into contact with the operation button by swinging when attached to the image display device 100. For example, in FIG. 12, the observer can operate the operation button 30C of the image display device 100 to which the handle members 80L and 80R are mounted by pressing the handle button shape member 87C. Similarly, the observer can operate the operation buttons 30A and 30B of the image display device 100 to which the handle members 80L and 80R are mounted by pressing the handle button shape members 87A and 87B.

Since the grooves 85L and 85R are positioned in the vicinity of the operation buttons 30A to 30C, the operation buttons 30A to 30C can be operated accurately even if the rubber 86L and 86R intervene without swinging.

By using the protrusions 31L and 31R as described above, it is possible to provide a handle for HHD form that is accurately positioned with respect to the operation button in a space-saving manner without separately providing a shape for positioning. .. Further, the handle members 80L and 80R are configured to cover the operation buttons 30A to 30C, and the rubber 86L and 86R are further covered to make it difficult to directly push the handle button shape members 87A to 87C. This makes it possible to reduce the possibility of accidentally pressing the operation buttons 30A to 30C when grasping the steering wheel.

Further, if it is necessary to prevent erroneous button operation, a protrusion similar to the protrusions 31L and 31R may be provided in the vicinity of the handle button shape members 87A to 87C.

Also, in the HHD mode, it is thought that there will be many simple observation applications without operation, so if some or all of the button operations are unnecessary, the handle button shape members 87A to 87C corresponding to the unnecessary operation buttons will be deleted and erroneous operation will be performed. You may completely eliminate the possibility of. In that case, the handle members 80L and 80R cover the operation buttons 30A to 30C, so that the observer cannot be notified of the existence of unnecessary operation buttons.

The image display device 100 according to the present embodiment can also be used as an HHD without attaching the handle members 80L and 80R. However, since it is miniaturized, it may be easy to drop it because there are few places where it can be gripped when it is gripped directly, or it may cause discomfort due to heat generation. There is also the possibility that the observer's finger will be in the field of view of the photographing cameras 20L, 20R and the alignment cameras 21L, 21R. Therefore, the HHD form with the handle members 80L and 80R attached has advantages such as less heat generation, prevention of fingers from entering the camera field of view, and the effect of rubber 86L and 86R to prevent slipping and make it easier to hold.

Also, if you hide something that is not displayed or perceived with your fingers or hands, such as alignment cameras 21L, 21R, ultrasonic sensors, infrared rays, etc., it is difficult to notice the problem, but the handle members 80L, 80R It is possible to prevent such a situation.

Further, as shown in FIG. 13, if the shape of the handle members 80L and 80R of the present embodiment is used, the photographing cameras 20L and 20R are stably placed on the desk or on the floor when the shooting cameras 20L and 20R are facing downward or the lenses 10L and 10R are facing downward. Can be placed. Furthermore, in that state, the shooting cameras 20L and 20R and the lenses 10L and 10R are off the floor. That is, when the handle members 80L and 80R are mounted on the desk or floor in a state of being mounted on the image display device 100, the image display device 100 is configured so as not to come into contact with the desk or floor. Therefore, it is possible to prevent the camera and the lens from being damaged.

As described above, in the present embodiment, a protrusion is provided adjacent to the operation button of the image display device and protrudes outward from the operation button, and a handle member is attached to the image display device in the protrusion. It is used for positioning when using.

As a result, since the finger comes into contact with the protrusion before the operation button, it is possible to reduce erroneous operation of the operation button of the image display device. Further, the protrusion is also used for positioning when the handle member is attached to the image display device to save space, and the handle can be easily attached to a small image display device. become. Further, according to the present embodiment, it is possible to provide an image display device that supports both HMD and HHD while preventing erroneous operation, and realizes miniaturization and space saving.

(Embodiment 2)
FIG. 14A is a perspective view showing the appearance of the image display device 110 according to the present embodiment. As shown in FIG. 14A, the image display device 110 according to the present embodiment includes shooting cameras 20L, 20R and alignment cameras 21L, 21R as in the configuration shown in FIG. 3, and is a display method. And so on. However, the difference is that instead of the operation buttons 30A to 30C and the protrusions 31L and 31R in FIG. 3, the operation buttons 130L and 130R and the recesses 131L and 131R are provided.

FIG. 14B is a perspective view showing a state in which the handle members 180L and 180R according to the present embodiment are similarly attached to the image display device 110 to form an HHD form.

FIG. 15 is a perspective view of the image display device 110 according to the present embodiment as viewed from diagonally above. Similar to FIG. 7, the image display device 110 has screw hole shapes 35L and 35R.

FIG. 16 is a perspective view of the handle members 180L and 180R according to the present embodiment as viewed from below. Similar to FIG. 10, the handle members 180L and 180R include screw holes 81L and 81R, protrusions 82L and 82R, screw holes 83L and 83R, and recesses 84L and 84R. However, the difference is that the handle positioning ribs 185L, 185R and the handle button shape members 187L, 187R are provided instead of the groove 85L, 85R, rubber 86L, 86R, and handle button shape members 87L, 87R in FIG. There is.

The screw holes 81L and 81R of the handle members 180L and 180R are fixed with screws according to the screw hole shapes 35L and 35R of the image display device 110 shown in FIG. At this time, the protrusions 82L and 82R are positioned by fitting into the recesses around the screw hole shapes 35L and 35R.

Further, the image display device 110 has the same configuration as the screw hole shapes 36L and 36R of the image display device 100 shown in FIG. 11 (not shown), and the screw holes 83L and 83R of the handle members 180L and 180R do not have this structure. It is fixed with screws according to the screw hole shapes 36L and 36R shown in the figure.

As shown in FIGS. 14A and 15, the image display device 110 includes operation buttons 130L and 130R, and the operation buttons 130L and 130R are arranged at positions lower than the surroundings in the recesses 131L and 131R. Has been done. As shown in FIG. 16, the handle members 180L and 180R are provided with handle positioning ribs 185L and 185R, and are positioned by engaging (for example, fitting) with the recesses 131L and 131R, which are recesses, respectively.

Further, handle button-shaped members 187L and 187R are provided on the handle members 180L and 180R so as to be swingable by slits. The handle button-shaped member comes into contact with the operation button by swinging when attached to the image display device 110. For example, the observer can operate the operation button 130L of the image display device 110 to which the handle member 180L is mounted by pressing the handle button shape member 187L. Similarly, the observer can operate the operation button 130R of the image display device 110 to which the handle member 180R is mounted by pressing the handle button shape member 187R.

As described above, in the present embodiment, the upper surface of the image display device is provided with a recess recessed from the upper surface, and the height of the recess is lowered by one step from the upper surface of the image display device to lower the operation buttons 130L, 130R. To place. Then, the handle member is provided with a rib that can be engaged with the concave portion, and by engaging the concave portion with the rib, the handle member can be attached to the image display device so as to cover the operation button.

In this way, by arranging the operation buttons in the recesses one step lower than the upper surface of the image display device, it becomes difficult for the finger to come into contact with the operation buttons, so that erroneous operation of the operation buttons of the image display device is reduced. be able to. Further, by providing the handle member with ribs and configuring the recesses so as to be engaged with the ribs, the handle member can also be used for positioning when the handle member is mounted on the image display device. Therefore, space saving is realized, and the handle can be easily attached to a small image display device.

Thereby, it is possible to provide a small image display device by using both the positioning shape and the erroneous operation prevention shape while preventing erroneous operation as in the first embodiment.

The invention is not limited to the above embodiments, and various modifications and modifications can be made without departing from the spirit and scope of the invention. Therefore, a claim is attached to make the scope of the invention public.

100: Image display device, 30A to 30C: Operation button, 80: Handle member, 85: Groove, 87: Handle button shape member, 200: Head mounting unit

Claims (9)

An image display device capable of mounting a handle member gripped by an observer and displaying an image on the observer.
An operation button arranged on a predetermined surface of the image display device and
A protrusion adjacent to the operation button and protruding from the predetermined surface of the operation button is provided.
The handle member can be attached to the image display device so as to cover the operation button.
The image display device is characterized in that the protrusion is used for positioning when the handle member is mounted on the image display device. The image display device according to claim 1, wherein the operation button is arranged at a position where the observer can operate the image display device when the image display device is grasped by one hand. Further equipped with a camera to acquire an image or a sensor to acquire distance information,
The image display device according to claim 1 or 2, wherein the handle member is mounted outside the angle of view range of the camera or the detection range of the sensor when mounted on the image display device. The handle member has an elastic member and has an elastic member.
The image according to any one of claims 1 to 3, wherein the elastic member is arranged at a position facing the operation button when the handle member is attached to the image display device. Display device. In the image display device, a head mounting unit for mounting on the observer's head can be coupled together with or optionally with the handle member.
The image display device according to any one of claims 1 to 4, wherein the head-mounted unit can be adjusted in position with respect to the observer. The handle member includes a handle button-shaped member that is provided so as to be swingable.
The image display device according to any one of claims 1 to 5, wherein the operation button can be operated in response to pressing the handle button-shaped member. An image display device capable of mounting a handle member gripped by an observer and displaying an image on the observer.
An operation button arranged in a recess recessed from a predetermined surface of the image display device, and
The handle member is provided with a rib that can be engaged with the concave portion, and by engaging the concave portion with the rib, the handle member can be attached to the image display device so as to cover the operation button. Image display device. A handle member gripped by the observer that can be attached to an image display device that displays an image to the observer.
A groove portion adjacent to the operation button arranged on the image display device and capable of engaging with a protrusion protruding from the operation button, and a groove portion.
A swingable handle button-shaped member that comes into contact with the operation button when attached to the image display device,
The handle member can be attached to the image display device so as to cover the operation button.
The groove portion is a handle member characterized in that it is used for positioning when the handle member is mounted on the image display device. A handle member gripped by the observer that can be attached to an image display device that displays an image to the observer.
A rib that can be engaged with an operation button arranged in a recess recessed from a predetermined surface of the image display device,
A swingable handle button-shaped member that comes into contact with the operation button when mounted on the image display device is provided.
The handle member is characterized in that it can be attached to the image display device so as to cover the operation button by engaging the recess and the rib.

Images