WO2022113564A1

WO2022113564A1 - Image display device and display device

Info

Publication number: WO2022113564A1
Application number: PCT/JP2021/038383
Authority: WO
Inventors: 俊明空華
Original assignee: ソニーグループ株式会社
Priority date: 2020-11-26
Filing date: 2021-10-18
Publication date: 2022-06-02
Also published as: JP2022084180A; CN116472488A

Abstract

To provide an image display device whereby further enhancement of immersion can be realized, further suppression of rendering cost can be realized, or further suppression of transmission cost can be realized.　Provided is an image display device comprising, for each eye of a user, a two-dimensional-image formation device, a three-dimensional-image formation device, a beam splitter, and an eyepiece lens, a first image light emitted from the two-dimensional-image formation device and a second image light emitted from the three-dimensional-image formation device being incident on each eye of the user via the respective beam splitter and eyepiece lens.

Description

Image display device and display device

This technique relates to an image display device and a display device.

In recent years, with the technology (AR (Augmented Reality) technology) that superimposes an image (video) on a scene of the outside world such as a real landscape in front of the user's eyes, and the reality in front of the user's eyes. Is attracting attention as a technology (VR (Virtual Reality) technology) that displays a different reality as an image (video). As one of the products using these techniques, for example, a head-mounted display (HMD: Head Mounted Display) that displays a three-dimensional image (three-dimensional image) can be mentioned. The head-mounted display is used by being worn on the user's head.

For example, Patent Document 1 proposes a technique related to a wearable 3D augmented reality display having an integral imaging optical component.

Further, for example, Patent Document 2 proposes a technique related to a head-mounted light field display system (HMD) having a light field projector in each of the eyes.

Japanese Patent Publication No. 2017-515162 Special Table 2015-521298

However, the techniques proposed in

Patent Documents

1 and 2 may not be able to further improve the immersive feeling, further suppress the rendering cost, and further suppress the transmission cost.

Therefore, this technology was made in view of such a situation, and it is necessary to further improve the immersive feeling, further suppress the rendering cost, and further suppress the transmission cost. An object of the present invention is to provide an image display device and a display device provided with the image display device.

As a result of diligent research to solve the above-mentioned object, the present inventors surprisingly realized a further improvement in immersiveness, a further reduction in rendering cost, and a further reduction in transmission cost. We succeeded in realizing the suppression, and completed this technology.

That is, this technique has, as the first aspect,
A two-dimensional image forming apparatus, a three-dimensional image forming apparatus, a beam splitter, and an eyepiece are provided for each of the user's eyes.
The first image light emitted from the two-dimensional image forming apparatus and the second image light emitted from the three-dimensional image forming apparatus pass through the beam splitter and the eyepiece in this order, and are used by the user. Provided is an image display device that is incident on each of both eyes.

In the image display device on the first side surface according to the present technology,
The beam splitter may be a half mirror.

In the image display device on the first side surface according to the present technology,
A two-dimensional image produced by the first image light emitted from the two-dimensional image forming apparatus and a three-dimensional image produced by the second image light emitted from the three-dimensional image forming apparatus may be superimposed. The resulting image may be visible to the user.

In the image display device on the first side surface according to the present technology,
The two-dimensional image by the first image light emitted from the two-dimensional image forming apparatus may be displayed in substantially the entire field of view of the user.
The three-dimensional image by the second image light emitted from the three-dimensional image forming apparatus may be displayed in a part of the field of view of the user.

In the image display device on the first side surface according to the present technology,
The two-dimensional image by the first image light emitted from the two-dimensional image forming apparatus may be displayed in substantially the entire field of view of the user.
The three-dimensional image by the second image light emitted from the three-dimensional image forming apparatus may be displayed in a substantially central portion of the user's field of view.

In the image display device on the first side surface according to the present technology,
The three-dimensional image by the second image light emitted from the three-dimensional image forming apparatus may be displayed in a rectangular range in the user's field of view.

In the image display device on the first side surface according to the present technology,
The three-dimensional image by the second image light emitted from the three-dimensional image forming apparatus may be displayed in a circular range in the user's field of view.

In the image display device on the first side surface according to the present technology,
The three-dimensional image by the second image light emitted from the three-dimensional image forming apparatus may be displayed in an elliptical range in the user's visual field.

In the image display device on the first side surface according to the present technology,
The three-dimensional image forming apparatus may form a three-dimensional image by using an integral imaging method.

In the image display device on the first side surface according to the present technology,
The three-dimensional image forming apparatus may form a three-dimensional image by using a tensor display method.

In the image display device on the first side surface according to the present technology,
The three-dimensional image forming apparatus may form a three-dimensional image by using a super-multicular method.

In the image display device on the first side surface according to the present technology,
The three-dimensional image forming apparatus may form a three-dimensional image by using a holographic method.

In the image display device on the first side surface according to the present technology,
The three-dimensional image forming apparatus may form a three-dimensional image by spatially multi-layered image planes.

In the image display device on the first side surface according to the present technology,
The three-dimensional image forming apparatus may form a three-dimensional image by the image planes which are multi-layered in time.

The image display device on the first side surface according to the present technology may include a free curved lens including the beam splitter and the eyepiece.

The image display device on the first side surface according to the present technology may further include a line-of-sight detection device.

This technology has the second aspect,
The frame attached to the user's head and
With an image display device attached to the frame,
The image display device provides a display device, which is an image display device on the first side surface according to the present technology.

According to this technique, it is possible to further improve the immersive feeling, further suppress the rendering cost, and further suppress the transmission cost. The effects described herein are not necessarily limited, and may be any of the effects described in the present disclosure.

FIG. 1 is a diagram showing a configuration example of an image display device according to a first embodiment to which the present technology is applied. FIG. 2 is a diagram showing an example of a method in which an image display device of a first embodiment to which the present technology is applied superimposes and displays a two-dimensional image and a three-dimensional image. FIG. 3 is a diagram showing a modified example 1 of a method in which an image display device of a first embodiment to which the present technique is applied superimposes and displays a two-dimensional image and a three-dimensional image. FIG. 4 is a diagram showing a modified example 2 of a method in which an image display device of a first embodiment to which the present technique is applied superimposes and displays a two-dimensional image and a three-dimensional image. FIG. 5 is a diagram showing a modified example 3 of a method in which an image display device of a first embodiment to which the present technique is applied superimposes and displays a two-dimensional image and a three-dimensional image. FIG. 6 is a diagram showing a configuration example of an image display device according to a second embodiment to which the present technology is applied. FIG. 7 is a diagram showing a configuration example of an image display device according to a third embodiment to which the present technology is applied. FIG. 8 is a diagram showing a configuration example of an image display device according to a fourth embodiment to which the present technology is applied. FIG. 9 is a diagram showing a configuration example of an image display device according to a fifth embodiment to which the present technology is applied. FIG. 10 is a diagram showing a configuration example of an image display device according to a sixth embodiment to which the present technology is applied. FIG. 11 is a diagram showing a configuration example of an image display device according to a seventh embodiment to which the present technology is applied. FIG. 12 is a diagram showing a configuration example of an image display device according to an eighth embodiment to which the present technology is applied.

Hereinafter, a suitable mode for carrying out this technique will be described. The embodiments described below show an example of a typical embodiment of the present technique, and the scope of the present technique is not narrowly interpreted by this. Unless otherwise specified, in the drawings, "upper" means the upper direction or the upper side in the drawing, "lower" means the lower direction or the lower side in the drawing, and "left" means. It means the left direction or the left side in the figure, and "right" means the right direction or the right side in the figure. Further, in the description using the drawings, the same or equivalent elements or members are designated by the same reference numerals, and duplicate description will be omitted.

The explanation will be given in the following order.
1. 1. Outline of this technology 2. First Embodiment (Example 1 of an image display device)
3. 3. Second Embodiment (Example 2 of an image display device)
4. Third Embodiment (Example 3 of an image display device)
5. Fourth Embodiment (Example 4 of an image display device)
6. Fifth Embodiment (Example 5 of an image display device)
7. Sixth Embodiment (Example 6 of image display device)
8. Seventh Embodiment (Example 7 of an image display device)
9. Eighth Embodiment (Example 8 of image display device)
10. Ninth Embodiment (Example 1 of display device)

<1. Overview of this technology>
First, the outline of this technique will be described.

The present technology relates to an image display device that presents a three-dimensional image and a display device including the image display device (for example, a head-mounted display (HMD: Head Mounted Display)).

A head-mounted display (HMD: Head Mounted Display) may adopt a structure that does not induce accommodation as depth perception while presenting binocular disparity, in which case accommodation accommodation contradiction (VAC) is adopted. May cause contradiction). VAC is a phenomenon in which the focus adjustment is fixed on the image display surface while the convergence angle reacts to the image presented by binocular disparity, such as 3D sickness, VR sickness, eye strain, and headache. It causes physiological discomfort and restrictions on the age of the user.

For example, as Technical Example 1 and Technical Example 2, as an HMD for solving VAC, a method of reproducing a light wave surface like holography and a method of reproducing the position and angle of a light ray like a light field can be mentioned. However, since these methods add depth information, it is necessary to reproduce the phase information and the angle information, and the rendering cost and the transmission cost may become enormous. As a result, compromises such as keeping the resolution low or narrowing the field of view are often seen, and the immersive feeling is hindered.

For example, as a technical example 3, a head-mounted display (HMD: Head Mounted Display) that displays an image having depth information by using an integral imaging type light field composed of a display and a microlens array can be mentioned. .. In the third technical example, the image generated by the light field and the real world transmitted through the optical system are superimposed to present the augmented reality to the user. However, in the third technical example, since the image is displayed at a high resolution, the field of view must be limited to a limited area near the center, and it is difficult to obtain an immersive feeling.

Further, as a technical example 4, as in the above technical example 3, a head-mounted display (HMD: Head Mounted Display) that displays an image having depth information using a light field of an integral imaging method can be mentioned. Be done. In the fourth technical example, the display that generates the light field is composed of an LED emitter which is a minute light source, and the display in which the LED emitters are arranged is mechanically moved and synchronized with the display image by time division. High resolution light fields can be generated over the entire field. However, in this technical example 4, in order to display a high-resolution image over the entire field of view, it is necessary to render and display a large amount of image at high speed, which may lead to an increase in rendering cost and transmission cost. ..

Further, for example, as a technical example 5, a head-mounted display (HMD: Head Mounted Display) that solves the VAC can be mentioned. This technical example 5 is a technique of a method of forming multiple layers of virtual image planes as a technical example other than the above technical examples 1 to 4. This method has a simple structure and mechanism, and can be implemented without the need for special equipment or high-cost calculations. However, in this method, the depth information is discrete, and in order to sufficiently reduce the VAC of the user's eye and eliminate the physiological discomfort, it is necessary to increase the number of virtual image planes, and the HMD becomes large. there's a possibility that.

This technology was made in view of the above situation. The present technology is an optical circuit using, for example, a two-dimensional image forming apparatus (for example, a two-dimensional display display), a three-dimensional image forming apparatus (for example, a three-dimensional display display), a beam splitter (for example, a half mirror), and an eyepiece. Consists of. This configuration is prepared for both eyes. In the present technology, the two-dimensional display may display a stereoscopic image using the difference between the left and right eyes over the entire field of view, and the three-dimensional display may have depth information by using a light field or the like. , A stereoscopic image (stereoscopic image) in which focus adjustment is induced may be displayed in a limited range of the center of the visual field. The images (videos) presented by the two-dimensional display and the three-dimensional display can be superimposed and visually recognized by the user by passing through an optical circuit.

This technology superimposes a two-dimensional image (two-dimensional image) that does not induce focus adjustment on a wide field of view, and a high-resolution three-dimensional image (three-dimensional image) that induces focus adjustment on a limited field of view. be able to. Therefore, according to the present technology, the contradiction of congestion adjustment can be resolved and a high immersive feeling can be obtained, and the structure of the image display device according to the present technology can be relatively simplified, so that manufacturing and assembly can be performed. The cost can be suppressed. Further, according to the present technique, since a high-resolution image having depth information can be limited to, for example, the center of the field of view, rendering cost and transmission cost can be suppressed as compared with the case where the image is displayed in the entire field of view.

Hereinafter, suitable embodiments for carrying out this technique will be described in detail with reference to the drawings. The embodiments described below show an example of a typical embodiment of the present technique, and the scope of the present technique is not narrowly interpreted by this.

<2. First Embodiment (Example 1 of image display device)>
The image display device of the first embodiment (example 1 of the image display device) according to the present technology includes a two-dimensional image forming device, a three-dimensional image forming device, and a beam splitter for each of the user's eyes. , With an eyepiece. In the image display device of the first embodiment according to the present technique, the first image light emitted from the two-dimensional image forming apparatus and the second image light emitted from the three-dimensional image forming apparatus are eyepieces with the beam splitter. It is incident on each of the user's eyes through the lens in this order.

Further, in the image display device of the first embodiment according to the present technology, the three-dimensional image forming device forms a three-dimensional image by using an integral imaging method. Examples of the beam splitter include a half mirror and the like.

The image display device of the first embodiment according to the present technology has a wide field of view of a two-dimensional image (two-dimensional image) that does not induce focus adjustment, and a high-resolution three-dimensional image (three-dimensional image) that induces focus adjustment. It can be presented superimposed on a limited viewing range. By this image display method (image display method), the contradiction of accommodation control can be solved and a high immersive feeling can be obtained at low cost.

The image display device of the first embodiment according to the present technology has a depth using a two-dimensional image forming device (for example, a two-dimensional display display), a light field, or the like that presents a stereo image (stereo image) for each eye. A beam that superimposes a two-dimensional image (two-dimensional image) and a three-dimensional image (three-dimensional image) on a three-dimensional image forming device (for example, a three-dimensional display display) that presents a three-dimensional image (three-dimensional image) having information. It is equipped with a splitter and an eyepiece. A two-dimensional image forming apparatus (for example, a two-dimensional display display) displays a stereo image over a wide field of view. A three-dimensional image forming apparatus (for example, a three-dimensional display display) can reproduce depth information with high resolution in a limited viewing range, and is not limited to the light field method but also a holography method (the first technique according to the present technique described later). (Refer to the image display device and the like of the fourth embodiment) and the multilayer image (imaginary image) plane method (see the image display device and the like of the fifth and sixth embodiments according to the present technique described later) and the like. May be good.

The image display device of the first embodiment according to the present technology achieves a wide field of view and high resolution with a relatively simple configuration as compared with the above-mentioned technical examples 1 to 5 as an HMD for improving VAC. Moreover, it is possible to suppress rendering costs and transmission costs. The human eye has the highest visual acuity in the central visual acuity region and low visual acuity in other regions. Therefore, humans are insensitive to image quality deterioration in the peripheral visual field region.

Utilizing this characteristic, as shown in FIG. 2 described later, a 3D image (3D image) having high resolution and depth information is displayed in the substantially central part of the field of view, and a low resolution and wide field 2D image is displayed. By displaying (two-dimensional image) in the entire field of view, it is possible to satisfy the resolution and the width of the field of view necessary for human beings to obtain a high immersive feeling. Further, in order to obtain high depth reproducibility with limited resources, it is effective to limit the visual field range for reproducing the depth. Further, by limiting the range in which the three-dimensional image (three-dimensional image) is displayed, the calculation cost and the transmission cost required for rendering the three-dimensional image (three-dimensional image) can be suppressed.

It should be noted that the contents described in paragraphs 0043 to 0045 above can be applied to the image display device of the second to eighth embodiments according to the present technology described later as long as there is no particular technical contradiction.

Hereinafter, the image display device of the first embodiment (example 1 of the image display device) according to the present technology will be described with reference to FIGS. 1 to 5.

First, the image display device 101 will be described with reference to FIG.

The image display device 101 is composed of an image display device 101-L for the left eye and an image display device 101-R for the right eye.

The image display device 101-L includes a two-dimensional display 2-L, an integral imaging type three-dimensional display 1-L, a half mirror 3-L, and an eyepiece 4-L. The three-dimensional display 1-L of the integral imaging method is composed of a microlens 1-1-L and a display 1-2-L. In the image display 101-L, the first image light emitted from the two-dimensional display 2-L and the second image light emitted from the integral imaging type three-dimensional display 1-L are the half mirror 3-L. And the eyepiece lens 4-L are incident on the user's left eye 500-L in this order. Therefore, in the image display device 101-L, the two-dimensional image (two-dimensional image) based on the first image light and the three-dimensional image (three-dimensional image) based on the second image light are superimposed and displayed.

The image display device 101-R includes a two-dimensional display 2-R, an integral imaging type three-dimensional display 1-R, a half mirror 3-R, and an eyepiece 4-R. The three-dimensional display 1-R of the integral imaging method is composed of a microlens 1-1-R and a display 1-2-R. In the image display 101-R, the first image light emitted from the two-dimensional display 2-R and the second image light emitted from the integral imaging type three-dimensional display 1-R are the half mirror 3-R. And the eyepiece lens 4-R are incident on the user's left eye 500-R in this order. Therefore, in the image display device 101-R, the two-dimensional image (two-dimensional image) based on the first image light and the three-dimensional image (three-dimensional image) based on the second image light are superimposed and displayed.

From the above, in the image display device 101, a three-dimensional image for reproducing depth information displayed in a part of the user's field of view (for example, a substantially central portion of the user's field of view) and a three-dimensional image displayed in substantially the entire area of the user's field of view are displayed. Can be superimposed on a two-dimensional visual field image.

This will be explained with reference to FIG. FIG. 2 is a diagram showing an example of a method in which the image display device of the first embodiment according to the present technology superimposes and displays a two-dimensional image and a three-dimensional image.

The image display device 102 shown in FIG. 2 includes a two-dimensional display display 2, an integral imaging method (light field method) three-dimensional display display 1, a half mirror 3, and an eyepiece lens 4. The three-dimensional display display 1 is composed of a microlens 1 and a display 1-2.

As shown in FIG. 2A, the three-dimensional image (three-dimensional image) in which the depth information is reproduced is magnified as a virtual image by the eyepiece 4 (dotted line G32-A). Similarly, the two-dimensional image (two-dimensional image) is also magnified as a virtual image by the eyepiece 4 (solid line G22-A). As shown in FIG. 2B, a virtual image G32-B of a three-dimensional image (three-dimensional image) is displayed in a substantially central portion of the user's field of view, and a two-dimensional image (two-dimensional) is displayed in substantially the entire area of the user's field of view. The virtual image G32-B of the video) is displayed, and the user can view the video in which these two virtual images are superimposed.

The explanation will be given using FIGS. 3 to 5.

FIG. 3 is a diagram showing a modified example 1 of a method in which the image display device of the first embodiment according to the present technology superimposes and displays a two-dimensional image and a three-dimensional image, and more specifically, in consideration of congestion. This is an example in which the range for displaying a virtual image of a three-dimensional image (three-dimensional image) is changed with respect to the range shown in FIG. 2B.

In the user's left eye 500-L, the virtual image G23-L of the two-dimensional image (two-dimensional image) is displayed in substantially the entire field of the user, and the virtual image G33-L of the three-dimensional image (three-dimensional image) is displayed. It is displayed on the right side with respect to the substantially center of the user's field of view (FIG. 3A). Reference numeral K1 shown in FIG. 3A indicates an optical axis, reference numeral K2 indicates a center of an image (video) having depth information, and a distance d between reference numeral K1 and reference numeral K2 is IPD / 2. On the other hand, in the user's right eye 500-R, the virtual image G23-R of the two-dimensional image (two-dimensional image) is displayed in substantially the entire field of the user's field of view, and the virtual image G33-R of the three-dimensional image (three-dimensional image) is displayed. Is displayed on the left side with respect to the substantially center of the user's field of view (FIG. 3B).

FIG. 4 is a diagram showing a modification 2 of a method in which the image display device of the first embodiment according to the present technology superimposes and displays a two-dimensional image and a three-dimensional image, and is a three-dimensional image (three-dimensional image). It is a figure which shows the example which made the range of () circular (Note that FIG. 2B and FIG. 3 are an example which made the range of a three-dimensional image (three-dimensional image) rectangular).

In the user's left eye 500-L, the virtual image G24-L of the two-dimensional image (two-dimensional image) is displayed in substantially the entire field of the user, and the virtual image G34-L of the three-dimensional image (three-dimensional image) is displayed. It is displayed in a circular shape on the right side with respect to the substantially central portion of the user's field of view (FIG. 4A). Reference numeral K1 shown in FIG. 4A indicates an optical axis, reference numeral K2 indicates a center of an image (video) having depth information, and a distance d between reference numeral K1 and reference numeral K2 is IPD / 2. On the other hand, in the user's right eye 500-R, the virtual image G24-R of the two-dimensional image (two-dimensional image) is displayed in substantially the entire field of the user's field of view, and the virtual image G34-R of the three-dimensional image (three-dimensional image) is displayed. Is displayed in a circular shape on the left side with respect to the substantially central portion of the user's field of view (FIG. 4B).

FIG. 5 is a diagram showing a modified example 3 of a method in which the image display device of the first embodiment according to the present technology superimposes and displays a two-dimensional image and a three-dimensional image, and is a three-dimensional image (three-dimensional image). 2B and 3 are examples in which the range of the three-dimensional image (three-dimensional image) is rectangular, and FIG. 4 is a diagram showing an example in which the range of) is made elliptical. This is an example in which the range of a three-dimensional image (three-dimensional image) is made circular.)

In the user's left eye 500-L, the virtual image G25-L of the two-dimensional image (two-dimensional image) is displayed in substantially the entire field of the user, and the virtual image G35-L of the three-dimensional image (three-dimensional image) is displayed. It is displayed in an elliptical shape on the right side with respect to the substantially central portion of the user's field of view (FIG. 5A). Reference numeral K1 shown in FIG. 5A indicates an optical axis, reference numeral K2 indicates a center of an image (video) having depth information, and a distance d between reference numeral K1 and reference numeral K2 is IPD / 2. On the other hand, in the user's right eye 500-R, the virtual image G25-R of the two-dimensional image (two-dimensional image) is displayed in substantially the entire field of the user's field of view, and the virtual image G35-R of the three-dimensional image (three-dimensional image) is displayed. Is displayed in an elliptical shape on the left side with respect to the substantially central portion of the user's field of view (FIG. 4B).

As described above, the contents of the description of the image display device of the first embodiment (example 1 of the image display device) according to the present technology will be described in the second to eighth aspects of the present technology, which will be described later, unless there is a particular technical contradiction. It can be applied to the image display device of the embodiment.

<3. Second Embodiment (Example 2 of image display device)>
The image display device of the second embodiment (example 2 of the image display device) according to the present technology includes a two-dimensional image forming device, a three-dimensional image forming device, and a beam splitter for each of the user's eyes. , With an eyepiece. In the image display device of the second embodiment according to the present technique, the first image light emitted from the two-dimensional image forming apparatus and the second image light emitted from the three-dimensional image forming apparatus are eyepieces with the beam splitter. It is incident on each of the user's eyes through the lens in this order.

Further, in the image display device of the second embodiment according to the present technology, the three-dimensional image forming device forms a three-dimensional image by using a tensor display method (a method using a plurality of transmissive displays). By forming a 3D image using the tensor display method, the calculation cost increases compared to the integral imaging method, but by limiting the field of view, the calculation cost can be suppressed compared to the existing method. can. Further, by forming a three-dimensional image using the tensor display method, it is possible to display a higher resolution image over a wider depth range. Examples of the beam splitter include a half mirror and the like.

Hereinafter, the image display device of the second embodiment (example 2 of the image display device) according to the present technology will be described with reference to FIG.

FIG. 6 shows the image display device 106. The image display device 106 includes an image display device 106-L for the left eye and an image display device 106-R for the right eye.

The image display device 106-L includes a two-dimensional display 2-L, a tensor display type three-dimensional display 16-L, a half mirror 3-L, and an eyepiece 4-L. The tensor display type three-dimensional display 16-L is composed of two displays 16-2-1-L and 16-2-2-L, but even if it is composed of three or more displays. good.

In the image display 106-L, the first image light emitted from the two-dimensional display 2-L and the second image light emitted from the tensor display type three-dimensional display 16-L are the half mirror 3-L. , And the eyepiece lens 4-L, are incident on the user's left eye 500-L in this order. Therefore, in the image display device 106-L, the two-dimensional image (two-dimensional image) based on the first image light and the three-dimensional image (three-dimensional image) based on the second image light are superimposed and displayed.

The image display device 106-R includes a two-dimensional display 2-R, a tensor display type three-dimensional display 16-R, a half mirror 3-R, and an eyepiece 4-R. The tensor display type three-dimensional display 16-R is composed of two displays 16-2-1-R and 16-2-2-R, but even if it is composed of three or more displays. good.

In the image display 106-R, the first image light emitted from the two-dimensional display 2-R and the second image light emitted from the tensor display type three-dimensional display 16-R are referred to as a half mirror 3-R. , And the eyepiece lens 4-R, are incident on the user's left eye 500-R in this order. Therefore, in the image display device 106-R, the two-dimensional image (two-dimensional image) based on the first image light and the three-dimensional image (three-dimensional image) based on the second image light are superimposed and displayed.

From the above, in the image display device 106, a three-dimensional image for reproducing the depth information displayed in a part of the user's field of view (for example, a substantially central portion of the user's field of view) and a three-dimensional image displayed in substantially the entire area of the user's field of view are displayed. Can be superimposed on a two-dimensional visual field image.

As described above, the contents of the description of the image display device of the second embodiment (example 2 of the image display device) according to the present technology are the same as those of the first embodiment of the present technology described above, unless there is a particular technical contradiction. It can be applied to an image display device and an image display device according to a third to eighth embodiment of the present technique described later.

<4. Third Embodiment (Example 3 of image display device)>
The image display device of the third embodiment (example 3 of the image display device) according to the present technology includes a two-dimensional image forming device, a three-dimensional image forming device, and a beam splitter for each of the user's eyes. , With an eyepiece. In the image display device of the third embodiment according to the present technique, the first image light emitted from the two-dimensional image forming apparatus and the second image light emitted from the three-dimensional image forming apparatus are eyepieces with the beam splitter. It is incident on each of the user's eyes through the lens in this order.

Further, in the image display device of the third embodiment according to the present technology, the three-dimensional image forming device forms a three-dimensional image by using a super-multicular method. Examples of the beam splitter include a half mirror and the like.

Hereinafter, the image display device of the third embodiment (example 3 of the image display device) according to the present technology will be described with reference to FIG. 7.

FIG. 7 shows the image display device 107. The image display device 107 includes an image display device 107-L for the left eye and an image display device 107-R for the right eye.

The image display device 107-L includes a two-dimensional display display 2-L, a super-multi-eye type three-dimensional display display 17-L, a half mirror 3-L, and an eyepiece lens 4-L. The super-multicular three-dimensional display 17-L is composed of a lenticular lens 17-1-L and a display 17-2-L.

In the image display 107-L, the first image light emitted from the two-dimensional display display 2-L and the second image light emitted from the super-multicular three-dimensional display display 17-L are the half mirror 3-L. And the eyepiece lens 4-L are incident on the user's left eye 500-L in this order. Therefore, in the image display device 107-L, the two-dimensional image (two-dimensional image) based on the first image light and the three-dimensional image (three-dimensional image) based on the second image light are superimposed and displayed.

The image display device 107-R includes a two-dimensional display 2-R, a super-multi-eye type three-dimensional display 17-R, a half mirror 3-R, and an eyepiece 4-R. The super-multicular three-dimensional display 17-R is composed of a lenticular lens 17-1-R and a display 17-2-R.

In the image display 107-R, the first image light emitted from the two-dimensional display display 2-R and the second image light emitted from the super-multicular three-dimensional display display 17-R are the half mirror 3-R. And the eyepiece lens 4-R, in this order, are incident on the user's left eye 500-R. Therefore, in the image display device 107-R, the two-dimensional image (two-dimensional image) based on the first image light and the three-dimensional image (three-dimensional image) based on the second image light are superimposed and displayed.

From the above, in the image display device 107, a three-dimensional image for reproducing the depth information displayed in a part of the user's field of view (for example, a substantially central portion of the user's field of view) and a three-dimensional image displayed in substantially the entire area of the user's field of view are displayed. Can be superimposed on a two-dimensional visual field image.

As described above, the contents of the description of the image display device of the third embodiment (example 3 of the image display device) according to the present technology are the first and second items according to the above-mentioned present technology, unless there is a particular technical contradiction. It can be applied to the image display device of the embodiment and the image display device of the fourth to eighth embodiments according to the present technique described later.

<5. Fourth Embodiment (Example 4 of image display device)>
The image display device of the fourth embodiment (example 4 of the image display device) according to the present technology includes a two-dimensional image forming device, a three-dimensional image forming device, and a beam splitter for each of the user's eyes. , With an eyepiece. In the image display device of the fourth embodiment according to the present technique, the first image light emitted from the two-dimensional image forming apparatus and the second image light emitted from the three-dimensional image forming apparatus are eyepieces with the beam splitter. It is incident on each of the user's eyes through the lens in this order.

Further, in the image display device of the fourth embodiment according to the present technology, the three-dimensional image forming device forms a three-dimensional image by using a holographic method. By forming a 3D image using the holography method, the calculation cost is higher than that of the integral imaging method, but by limiting the field of view, the calculation cost can be suppressed compared to the existing method. And, although the structure can be complicated, higher resolution and higher depth reproducibility can be achieved. Examples of the beam splitter include a half mirror and the like.

Hereinafter, the image display device of the fourth embodiment (example 4 of the image display device) according to the present technology will be described with reference to FIG.

FIG. 8 shows the image display device 108. The image display device 108 includes an image display device 108-L for the left eye and an image display device 108-R for the right eye.

The image display device 108-L includes a two-dimensional display 2-L, a holographic three-dimensional display 18-L, a half mirror 3-L, and an eyepiece 4-L. The holographic three-dimensional display 18-L has a spatial light modulator 18-2-L and a light source 18-3-L (laser light source or the like).

In the image display 108-L, the first image light emitted from the two-dimensional display display 2-L and the second image light emitted from the holographic three-dimensional display display 18-L are the half mirror 3-L and the half mirror 3-L. It is incident on the user's left eye 500-L via the eyepiece lenses 4-L and in this order. Therefore, in the image display device 108-L, the two-dimensional image (two-dimensional image) based on the first image light and the three-dimensional image (three-dimensional image) based on the second image light are superimposed and displayed.

The image display device 108-R includes a two-dimensional display 2-R, a holographic three-dimensional display 18-R, a half mirror 3-R, and an eyepiece 4-R. The holographic three-dimensional display 18-R has a spatial light modulator 18-2-R and a light source 18-3-R (laser light source or the like).

In the image display 108-R, the first image light emitted from the two-dimensional display display 2-R and the second image light emitted from the holographic three-dimensional display display 18-R are the half mirror 3-R and the half mirror 3-R. It is incident on the user's left eye 500-R via the eyepiece lenses 4-R in this order. Therefore, in the image display device 108-R, the two-dimensional image (two-dimensional image) based on the first image light and the three-dimensional image (three-dimensional image) based on the second image light are superimposed and displayed.

From the above, in the image display device 108, the three-dimensional image for reproducing the depth information displayed in a part of the user's field of view (for example, the substantially central portion of the user's field of view) and the three-dimensional image are displayed in substantially the entire area of the user's field of view. Can be superimposed on a two-dimensional visual field image.

As described above, the contents of the description of the image display device of the fourth embodiment (example 4 of the image display device) according to the present technology are the first to third aspects of the present technology described above, unless there is a particular technical contradiction. It can be applied to the image display device of the embodiment and the image display device of the fifth to eighth embodiments according to the present technique described later.

<6. Fifth Embodiment (Example 5 of image display device)>
The image display device of the fifth embodiment (example 5 of the image display device) according to the present technology includes a two-dimensional image forming device, a three-dimensional image forming device, and a beam splitter for each of the user's eyes. , With an eyepiece. In the image display device of the fifth embodiment according to the present technique, the first image light emitted from the two-dimensional image forming apparatus and the second image light emitted from the three-dimensional image forming apparatus are eyepieces with the beam splitter. It is incident on each of the user's eyes through the lens in this order.

Further, in the image display device of the fifth embodiment according to the present technique, the three-dimensional image forming device has a spatially multi-layered image plane, that is, a spatially multi-layered imaginary image using a stacked display. A three-dimensional image is formed by the surface method. Examples of the beam splitter include a half mirror and the like.

Hereinafter, the image display device of the fifth embodiment (example 5 of the image display device) according to the present technology will be described with reference to FIG.

FIG. 9 shows the image display device 109. The image display device 109 includes an image display device 109-L for the left eye and an image display device 109-R for the right eye.

The image display device 109-L includes a two-dimensional display 2-L, a multi-layered image plane type three-dimensional display display 19-L, a half mirror 3-L, and an eyepiece 4-L. The multi-layered image plane type three-dimensional display display 19-L forms a three-dimensional image by spatially multi-layered image planes. The multi-layered image plane type three-dimensional display display 19-L is composed of laminated displays 19-2-1-L and 19-2-L. The multi-layered image plane type three-dimensional display 19-L is composed of two displays 19-2-1-L and 19-2-L, but is composed of three or more displays. You may.

In the image display 109-L, the first image light emitted from the two-dimensional display 2-L and the second image light emitted from the multi-layered image plane type three-dimensional display display 19-L are the half mirror 3-. L and the eyepiece lens 4-L are incident on the user's left eye 500-L in this order. Therefore, in the image display device 109-L, the two-dimensional image (two-dimensional image) based on the first image light and the three-dimensional image (three-dimensional image) based on the second image light are superimposed and displayed.

The image display device 109-R includes a two-dimensional display 2-R, a multi-layered image plane type three-dimensional display display 19-R, a half mirror 3-R, and an eyepiece 4-R. The multi-layered image plane type three-dimensional display display 19-R forms a three-dimensional image by spatially multi-layered image planes. The multi-layered image plane type three-dimensional display 19-R is composed of laminated displays 19-2-1-R and 19-2-R. The multi-layered image plane type three-dimensional display 19-R is composed of two displays 19-2-1-R and 19-2-R, but is composed of three or more displays. You may.

In the image display 109-R, the first image light emitted from the two-dimensional display display 2-R and the second image light emitted from the multi-layered image plane type three-dimensional display display 19-R are the half mirror 3-. The R and the eyepiece 4-R are incident on the user's left eye 500-R in this order. Therefore, in the image display device 109-R, the two-dimensional image (two-dimensional image) based on the first image light and the three-dimensional image (three-dimensional image) based on the second image light are superimposed and displayed.

From the above, in the image display device 109, a three-dimensional image for reproducing the depth information displayed in a part of the user's field of view (for example, a substantially central portion of the user's field of view) and a three-dimensional image displayed in substantially the entire area of the user's field of view are displayed. Can be superimposed on a two-dimensional visual field image.

As described above, the contents of the description of the image display device of the fifth embodiment (example 5 of the image display device) according to the present technology are the first to fourth aspects of the present technology described above, unless there is a particular technical contradiction. It can be applied to the image display device of the embodiment and the image display device of the sixth to eighth embodiments according to the present technique described later.

<7. Sixth Embodiment (Example 6 of image display device)>
The image display device of the sixth embodiment (example 6 of the image display device) according to the present technology includes a two-dimensional image forming device, a three-dimensional image forming device, and a beam splitter for each of the user's eyes. , With an eyepiece. In the image display device of the sixth embodiment according to the present technique, the first image light emitted from the two-dimensional image forming apparatus and the second image light emitted from the three-dimensional image forming apparatus are eyepieces with the beam splitter. It is incident on each of the user's eyes through the lens in this order.

Further, in the image display device of the sixth embodiment according to the present technique, the three-dimensional image forming device is a time-multilayered virtual image that moves the display in the optical axis direction by the time-multilayered image plane. A three-dimensional image is formed by the surface method. Examples of the beam splitter include a half mirror and the like.

Hereinafter, the image display device of the sixth embodiment (example 6 of the image display device) according to the present technology will be described with reference to FIG.

FIG. 10 shows the image display device 110. The image display device 110 includes an image display device 110-L for the left eye and an image display device 110-R for the right eye.

The image display device 110-L includes a two-dimensional display 2-L, a multi-layered image plane type three-dimensional display 610-L, a half mirror 3-L, and an eyepiece 4-L. The multi-layered image plane type three-dimensional display display 610-L forms a three-dimensional image by the time-multilayered image planes. The virtual image position can be changed by moving the multi-layered image plane type three-dimensional display 610-L in the optical axis direction (arrow P10-L).

In the image display 110-L, the first image light emitted from the two-dimensional display display 2-L and the second image light emitted from the multi-layered image plane type three-dimensional display display 610-L are the half mirror 3-. L and the eyepiece lens 4-L are incident on the user's left eye 500-L in this order. Therefore, in the image display device 110-L, the two-dimensional image (two-dimensional image) based on the first image light and the three-dimensional image (three-dimensional image) based on the second image light are superimposed and displayed.

The image display device 110-R includes a two-dimensional display 2-R, a multi-layered image plane type three-dimensional display 610-R, a half mirror 3-R, and an eyepiece 4-R. The multi-layered image plane type three-dimensional display display 610-R forms a three-dimensional image by the time-multilayered image planes. The virtual image position can be changed by moving the multi-layered image plane type three-dimensional display 610-R in the optical axis direction (arrow P10-L).

In the image display 110-R, the first image light emitted from the two-dimensional display display 2-R and the second image light emitted from the multi-layered image plane type three-dimensional display display 610-R are the half mirror 3-. The R and the eyepiece 4-R are incident on the user's left eye 500-R in this order. Therefore, in the image display device 110-R, the two-dimensional image (two-dimensional image) based on the first image light and the three-dimensional image (three-dimensional image) based on the second image light are superimposed and displayed.

From the above, in the image display device 110, a three-dimensional image for reproducing the depth information displayed in a part of the user's field of view (for example, a substantially central portion of the user's field of view) and a three-dimensional image displayed in substantially the entire area of the user's field of view are displayed. Can be superimposed on a two-dimensional visual field image.

As described above, the contents of the description of the image display device of the sixth embodiment (example 6 of the image display device) according to the present technology are the first to fifth aspects of the present technology described above, unless there is a particular technical contradiction. It can be applied to the image display device of the embodiment and the image display device of the seventh to eighth embodiments according to the present technique described later.

<8. Seventh Embodiment (Example 7 of image display device)>
The image display device of the seventh embodiment (example 7 of the image display device) according to the present technology includes a two-dimensional image forming device, a three-dimensional image forming device, a beam splitter, and a beam splitter for each of the user's eyes. It includes a free curved lens including an eyepiece. In the image display device of the seventh embodiment according to the present technique, the first image light emitted from the two-dimensional image forming apparatus and the second image light emitted from the three-dimensional image forming apparatus pass through the free curved lens. Then, it is incident on each of the user's eyes. The free-form surface lens includes a beam splitter and an eyepiece. The free-form surface lens can be manufactured, for example, by adding the function of a beam splitter to the adhesive surface between the eyepieces.

By providing the image display device of the seventh embodiment according to the present technology with a free-form surface lens, the image display device of the seventh embodiment according to the present technology can be made smaller and thinner as a whole. Can be done.

Further, in the image display device of the seventh embodiment according to the present technology, the three-dimensional image forming device forms a three-dimensional image by using an integral imaging method. The three-dimensional image forming apparatus included in the image display apparatus of the seventh embodiment according to the present technology may form a three-dimensional image by using a tensor display method, or may use a super-multicular method to form a three-dimensional image. An image may be formed, a three-dimensional image may be formed by using a holography method, a three-dimensional image may be formed by a spatially multi-layered image plane, or a three-dimensional image may be formed by temporally multi-layered images. A three-dimensional image may be formed from the converted image plane.

Hereinafter, the image display device of the seventh embodiment (example 7 of the image display device) according to the present technology will be described with reference to FIG.

FIG. 11 shows the image display device 111. The image display device 111 includes an image display device 111-L for the left eye and an image display device 111-R for the right eye.

The image display device 111-L includes a two-dimensional display 2-L, an integral imaging type three-dimensional display 1-L, and a free-form surface lens 411-L. The free-form surface lens 411-L is composed of a beam splitter and an eyepiece.

In the image display 111-L, the first image light emitted from the two-dimensional display 2-L and the second image light emitted from the integral imaging type three-dimensional display 1-L are the free curved lens 411- It is incident on the user's left eye 500-L via L. Therefore, in the image display device 111-L, the two-dimensional image (two-dimensional image) based on the first image light and the three-dimensional image (three-dimensional image) based on the second image light are superimposed and displayed.

The image display device 111-R includes a two-dimensional display 2-R, an integral imaging type three-dimensional display 1-R, and a free-form surface lens 411-R. The free-form surface lens 411-L is composed of a beam splitter and an eyepiece.

In the image display 111-R, the first image light emitted from the two-dimensional display 2-R and the second image light emitted from the integral imaging type three-dimensional display 1-R are the free curved lens 411-. It is incident on the user's left eye 500-R via R. Therefore, in the image display device 111-R, the two-dimensional image (two-dimensional image) based on the first image light and the three-dimensional image (three-dimensional image) based on the second image light are superimposed and displayed.

From the above, in the image display device 111, the three-dimensional image for reproducing the depth information displayed in a part of the user's field of view (for example, the substantially central portion of the user's field of view) and the three-dimensional image are displayed in substantially the entire area of the user's field of view. Can be superimposed on a two-dimensional visual field image.

As described above, the contents of the description of the image display device of the seventh embodiment (example 7 of the image display device) according to the present technology are the first to sixth aspects of the present technology described above, unless there is a particular technical contradiction. It can be applied to the image display device of the embodiment and the image display device of the eighth embodiment according to the present technique described later.

<9. Eighth Embodiment (Example 8 of image display device)>
The image display device of the eighth embodiment (example 8 of the image display device) according to the present technology includes a two-dimensional image forming device, a three-dimensional image forming device, and a beam splitter for each of the user's eyes. , An eyepiece and a line-of-sight detection device. In the image display device of the eighth embodiment according to the present technique, the first image light emitted from the two-dimensional image forming apparatus and the second image light emitted from the three-dimensional image forming apparatus are eyepieces with the beam splitter. It is incident on each of the user's eyes through the lens in this order.

By providing the image display device of the eighth embodiment according to the present technology with a line-of-sight detection device, it is possible to change the range of displaying a three-dimensional image (three-dimensional image) following the line of sight. A near-infrared light source and a camera can be used to detect the line of sight. To follow the line of sight, an actuator or the like that can be moved in a plane perpendicular to the optical axis is used. According to the image display device of the eighth embodiment according to the present technology, it is possible to display a three-dimensional image (three-dimensional image) having high-resolution depth information in the line-of-sight direction.

Further, in the image display device of the eighth embodiment according to the present technology, the three-dimensional image forming device forms a three-dimensional image by using an integral imaging method. The three-dimensional image forming apparatus included in the image display apparatus of the eighth embodiment according to the present technology may form a three-dimensional image by using a tensor display method, or may use a super-multicular method to form a three-dimensional image. An image may be formed, a three-dimensional image may be formed by using a holography method, a three-dimensional image may be formed by a spatially multi-layered image plane, or a three-dimensional image may be formed by temporally multi-layered images. A three-dimensional image may be formed from the converted image plane. Examples of the beam splitter include a half mirror and the like.

Hereinafter, the image display device of the eighth embodiment (example 8 of the image display device) according to the present technology will be described with reference to FIG.

FIG. 12 shows the image display device 112. The image display device 112 includes an image display device 112-L for the left eye and an image display device 112-R for the right eye.

The image display device 112-L includes a two-dimensional display 2-L, an integral imaging type three-dimensional display 1-L, a half mirror 3-L, an eyepiece 4-L, and a line-of-sight detection device 712-. L and. The line-of-sight detection device 712-L is composed of a light source 712-1-L (near-infrared LED or the like) and an image sensor 712-2-L. The line-of-sight detection device 712-L can move while following the line of sight in the vertical direction (arrow P12-L) and / or the left-right direction (not shown, left-right direction in FIG. 12) by using an actuator or the like.

In the image display 112-L, the first image light emitted from the two-dimensional display 2-L and the second image light emitted from the integral imaging type three-dimensional display 1-L are the half mirror 3-L. And the eyepiece lens 4-L are incident on the user's left eye 500-L in this order. Therefore, in the image display device 112-L, the two-dimensional image (two-dimensional image) based on the first image light and the three-dimensional image (three-dimensional image) based on the second image light are superimposed and displayed.

The image display device 112-R includes a two-dimensional display 2-R, an integral imaging type three-dimensional display 1-R, a half mirror 3-R, an eyepiece 4-R, and a line-of-sight detection device 712-. With R. The line-of-sight detection device 712-R is composed of a light source 712-1-R (near-infrared LED or the like) and an image sensor 712-2-R. The line-of-sight detection device 712-R can move while following the line of sight in the vertical direction (arrow P12-L) and / or the left-right direction (not shown, left-right direction in FIG. 12) by using an actuator or the like.

In the image display 112-R, the first image light emitted from the two-dimensional display 2-R and the second image light emitted from the integral imaging type three-dimensional display 1-R are the half mirror 3-R. And the eyepiece lens 4-R are incident on the user's left eye 500-R in this order. Therefore, in the image display device 112-R, the two-dimensional image (two-dimensional image) based on the first image light and the three-dimensional image (three-dimensional image) based on the second image light are superimposed and displayed.

From the above, in the image display device 112, the three-dimensional image for reproducing the depth information displayed in a part of the user's field of view (for example, the substantially central portion of the user's field of view) and the three-dimensional image are displayed in substantially the entire area of the user's field of view. Can be superimposed on a two-dimensional visual field image. Further, in the image display device 112, it is possible to always display a three-dimensional image (three-dimensional image) having high resolution and depth information by following the line of sight, for example, at a substantially central portion of the field of view.

As described above, the contents of the description of the image display device of the eighth embodiment (example 8 of the image display device) according to the present technology are the first to seventh items according to the above-mentioned present technology, unless there is a particular technical contradiction. It can be applied to the image display device of the embodiment.

<10. Ninth Embodiment (Example 1 of display device)>
The display device of the ninth embodiment (example 1 of the display device) according to the present technology includes a frame mounted on the user's head and an image display device attached to the frame, and the image display device includes an image display device. It is a display device provided with at least one image display device of the first embodiment to the eighth embodiment of the present technology. Examples of the display device of the ninth embodiment (example 1 of the display device) according to the present technology include an eyewear display (Eyewear Display), a head-mounted display (HMD: Head Mounted Display), and the like.

The display device of the ninth embodiment according to the present technology is, for example, mounted on the head of a user, has a spectacle-like shape, and is configured to project image light (image light) to each of both eyes. It may have been done.

It should be noted that the embodiments relating to the present technology are not limited to the above-mentioned embodiments and various modifications can be made without departing from the gist of the present technology.

Further, the effects described in the present specification are merely examples and are not limited, and other effects may be obtained.

In addition, the present technology can also have the following configurations.
[1]
A two-dimensional image forming apparatus, a three-dimensional image forming apparatus, a beam splitter, and an eyepiece are provided for each of the user's eyes.
The first image light emitted from the two-dimensional image forming apparatus and the second image light emitted from the three-dimensional image forming apparatus pass through the beam splitter and the eyepiece in this order, and are used by the user. An image display device that is incident on each of both eyes.
[2]
The image display device according to [1], wherein the beam splitter is a half mirror.
[3]
The two-dimensional image by the first image light emitted from the two-dimensional image forming apparatus and the three-dimensional image by the second image light emitted from the three-dimensional image forming apparatus are superimposed and visually recognized by the user. The image display device according to [1] or [2].
[4]
The two-dimensional image generated by the first image light emitted from the two-dimensional image forming apparatus is displayed in substantially the entire field of view of the user.
The image display according to any one of [1] to [3], wherein the three-dimensional image by the second image light emitted from the three-dimensional image forming apparatus is displayed in a part of the field of view of the user. Device.
[5]
The two-dimensional image generated by the first image light emitted from the two-dimensional image forming apparatus is displayed in substantially the entire field of view of the user.
The image according to any one of [1] to [3], wherein the three-dimensional image generated by the second image light emitted from the three-dimensional image forming apparatus is displayed in a substantially central portion of the user's field of view. Display device.
[6]
The third-dimensional image by the second image light emitted from the three-dimensional image forming apparatus is displayed in a rectangular range in the user's field of view, according to any one of [1] to [5]. Image display device.
[7]
The third-dimensional image by the second image light emitted from the three-dimensional image forming apparatus is displayed in a circular range in the user's field of view, according to any one of [1] to [5]. Image display device.
[8]
The third-dimensional image by the second image light emitted from the three-dimensional image forming apparatus is displayed in an elliptical range in the user's visual field, according to any one of [1] to [5]. Image display device.
[9]
The image display device according to any one of [1] to [8], wherein the three-dimensional image forming apparatus forms a three-dimensional image by using an integral imaging method.
[10]
The image display device according to any one of [1] to [8], wherein the three-dimensional image forming device forms a three-dimensional image by using a tensor display method.
[11]
The image display device according to any one of [1] to [8], wherein the three-dimensional image forming apparatus forms a three-dimensional image by using a super-multicular method.
[12]
The image display device according to any one of [1] to [8], wherein the three-dimensional image forming apparatus forms a three-dimensional image by using a holographic method.
[13]
The image display device according to any one of [1] to [8], wherein the three-dimensional image forming apparatus forms a three-dimensional image by spatially multilayered image planes.
[14]
The image display device according to any one of [1] to [8], wherein the three-dimensional image forming apparatus forms a three-dimensional image by means of image planes having multiple layers in time.
[15]
The image display device according to any one of [1] to [14], comprising a free-form surface lens including the beam splitter and the eyepiece.
[16]
The image display device according to any one of [1] to [15], further comprising a line-of-sight detection device.
[17]
The frame attached to the user's head and
With an image display device attached to the frame,
The display device, wherein the image display device is the image display device according to any one of [1] to [16].

1 (1-L, 1-R) ... Integral imaging type 3D display (3D image forming device),
2 (2-L, 2-R) ... 2D display display (2D image forming device),
3 (3-L, 3-R) ... Half mirror (beam splitter),
4 (4-L, 4-R) ... Eyepiece,
16 (16-L, 16-R) ... Tensor display type 3D display (3D image forming device),
17 (17-L, 17-R) ... Ultra-multicular 3D display (3D image forming device),
18 (18-L, 18-R) ... Holographic 3D display (3D image forming device),
19 (19-L, 19-R) ... A three-dimensional display (three-dimensional image forming apparatus) of a multi-layered image plane method (an example in which a spatially multi-layered image plane is adopted),
101 (101-L, 101-R), 102, 106 (106-L, 106-R), 107 (107-L, 107-R), 108 (108-L, 108-R), 109 (109-) L, 109-R), 110 (110-L, 110-R), 111 (111-L, 111-R), 112 (112-L, 112-R) ... Image display device,
411 (411-L, 411-R) ... Free-form surface lens,
500 (500-L, 500-R) ... Eyeball,
610 (610-L, 610-R) ... A three-dimensional display (three-dimensional image forming apparatus) of a multi-layered image plane method (an example in which a temporally multi-layered image plane is adopted).
712 (712-L, 712-R) ... Line-of-sight detection device.

Claims

A two-dimensional image forming apparatus, a three-dimensional image forming apparatus, a beam splitter, and an eyepiece are provided for each of the user's eyes.
The first image light emitted from the two-dimensional image forming apparatus and the second image light emitted from the three-dimensional image forming apparatus pass through the beam splitter and the eyepiece in this order, and are used by the user. An image display device that is incident on each of both eyes.
The image display device according to claim 1, wherein the beam splitter is a half mirror.
The two-dimensional image by the first image light emitted from the two-dimensional image forming apparatus and the three-dimensional image by the second image light emitted from the three-dimensional image forming apparatus are superimposed and visually recognized by the user. The image display device according to claim 1.
The two-dimensional image generated by the first image light emitted from the two-dimensional image forming apparatus is displayed in substantially the entire field of view of the user.
The image display device according to claim 1, wherein a three-dimensional image generated by the second image light emitted from the three-dimensional image forming device is displayed in a part of the user's field of view.
The two-dimensional image generated by the first image light emitted from the two-dimensional image forming apparatus is displayed in substantially the entire field of view of the user.
The image display device according to claim 1, wherein a three-dimensional image generated by the second image light emitted from the three-dimensional image forming device is displayed at a substantially central portion of the user's field of view.
The image display device according to claim 1, wherein the three-dimensional image generated by the second image light emitted from the three-dimensional image forming device is displayed in a rectangular range in the user's field of view.
The image display device according to claim 1, wherein the three-dimensional image generated by the second image light emitted from the three-dimensional image forming device is displayed in a circular range in the user's field of view.
The image display device according to claim 1, wherein the three-dimensional image generated by the second image light emitted from the three-dimensional image forming device is displayed in an elliptical range in the user's visual field.
The image display device according to claim 1, wherein the three-dimensional image forming device forms a three-dimensional image by using an integral imaging method.
The image display device according to claim 1, wherein the three-dimensional image forming device forms a three-dimensional image by using a tensor display method.
The image display device according to claim 1, wherein the three-dimensional image forming device forms a three-dimensional image by using a super-multicular method.
The image display device according to claim 1, wherein the three-dimensional image forming device forms a three-dimensional image by using a holographic method.
The image display device according to claim 1, wherein the three-dimensional image forming device forms a three-dimensional image by spatially multi-layered image planes.
The image display device according to claim 1, wherein the three-dimensional image forming device forms a three-dimensional image by means of image planes having multiple layers in time.
The image display device according to claim 1, further comprising a free-form surface lens including the beam splitter and the eyepiece.
The image display device according to claim 1, further comprising a line-of-sight detection device.
The frame attached to the user's head and
With an image display device attached to the frame,
The display device, wherein the image display device is the image display device according to claim 1.