JPH05183942A - Three-dimensional display - Google Patents

Abstract

PURPOSE:To provide the three-dimensional display which can obtain powerful and comparatively bright images having a satisfactory stereoscopic effect, widens the degree of freedom for the position and posture of video observers and can reduce energy consumption while being light in weight and compact. CONSTITUTION:This three-dimensional display is entirely formed in the shape of goggle and provided with a display part 2 for displaying an image for left eye at a position corresponding to the left eye and a display part 3 for displaying an image for right eye at a position corresponding to the right eye, and the respective display parts 2 and 3 are a liquid crystal display part LD provided with a back light source L composed of thin film EL elements.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to three-dimensional displays.

[0002]

2. Description of the Related Art As a three-dimensional display for displaying an image in three dimensions, one using a binocular parallax effect, one using holography and the like are known. Among them, a display that utilizes the binocular parallax effect is one that separates and presents images with binocular parallax viewed from the direction corresponding to the left and right eyes to the left and right eyes for stereoscopic viewing. Glasses method (anaglyph method), polarization glasses method that uses the light blocking effect of the polarizer, time-division glasses method that alternately presents the left and right images within the afterimage time of the eye, and the parallax barrier method that has been known for a long time. There are display surface methods such as lenticular method.

For viewing TV, watching movies, etc., those utilizing the binocular parallax effect are used. Especially, for watching movies, the simple color glasses method suitable for displaying moving images has been adopted so far. Has been done. However, since this color spectacles system lacks in color, a time-division spectacles system that can display color images and is also suitable for displaying moving images is being studied for TV viewing and the like.

In the time-division glasses system, as shown in FIG. 3, left and right eye images provided from a player of a video information carrier for three-dimensional stereoscopic images (for example, a video tape recorder, a video disc player) or the like are displayed on a television set. 71
An image is alternately displayed on a screen 72 such as a CRT, and a polarizing plate 73 for switching the polarization between vertical and horizontal is arranged in front of the screen so that the image for the left eye and the image for the right eye pass through the polarizing plate 73 alternately. The image that has passed through the polarizing plate is viewed with the polarizing glasses 74 having different left and right polarization angles.

[0005]

However, according to such a time-division type conventional display, the range in which a three-dimensional image can be viewed is limited to the screen size of the television set 71, and the solid angle of the image is reduced. In addition to the problems that it is difficult to take a large image, the three-dimensional effect and the force are poor, and since the polarizing plate 73 and the polarizing glasses 74 are used, the amount of light is reduced and the image becomes dark. Also, depending on the angle at which the screen is viewed, it may not be possible to obtain a 3D stereoscopic image.
The posture is limited to a certain range.

[0006] Therefore, an object of the present invention is to provide a three-dimensional display which can obtain a relatively bright image excellent in stereoscopic effect and which has a large degree of freedom in the position and orientation of the image viewer.

[0007]

According to the above-mentioned object, the present invention has a display unit for displaying an image for the left eye at a position corresponding to the left eye, which is entirely formed in a goggle shape, and corresponds to the right eye. A three-dimensional display having a display unit for displaying an image for the right eye at a position, each display unit being a liquid crystal display unit having a backlight light source made of a thin film EL element. It is a thing.

In the present specification, "goggle shape"
The concept is a concept that includes the shapes of goggles used by skiers, goggles for avoiding dust, glasses for myopia and hyperopia, sunglasses, and the like. An image magnifying lens may be provided in front of each display unit to obtain a larger, three-dimensional image.

Further, in order to obtain a sound effect, a pair of left and right phones for generating stereo sound may be provided. This phone can be earphones or headphones, and there is no particular limitation.

[0010]

The three-dimensional display of the present invention, which has a goggle shape, is used by being worn on the face, and a player of a video information carrier for three-dimensional stereoscopic images is connected to both display sections, so that the display section for the left eye is displayed. The image for the left eye is simultaneously displayed on the right eye, and the image for the right eye is simultaneously displayed on the right eye display section, and a stereoscopic image can be obtained by viewing these images.

When an image magnifying lens is provided in front of each display unit, a larger image having a stereoscopic effect can be obtained. When a pair of left and right phones for generating stereo sound is provided, the sound can be heard simultaneously with the image observation by the sound signal provided from the player or the like.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a perspective view of one embodiment, and FIG. 2 is a schematic cross-sectional view of each display unit in the display of FIG. This 3D display is in the shape of goggles, and its frame 1 is a hanging part 1 that hangs on both ears of the human body.
1 is provided. The display unit 2 is fitted in a position corresponding to the left eye and the display unit 3 is fitted in a position corresponding to the right eye of the frame. Both display parts have the same structure, and are composed of a transmissive liquid crystal display part LD in which a backlight light source L composed of a self-luminous thin film EL element is laminated on the outer surface side via a transparent glass plate G.
Earphones 4 for the left and right ears for generating stereo sound extend from the frame temple 11.

This display has a frame temple 11
It is used by both viewers' ears. Both display units 2 and 3 and earphones 4 and 4 are connected to, for example, a video cassette player 5 that provides a signal and sound for three-dimensional stereoscopic images, and the left eye display unit 2 displays the left eye display unit 2 for the left eye by the operation of the player. An image for the right eye is displayed on the right eye display unit 3, and a viewer simultaneously views the image with both eyes to obtain a stereoscopic image. at the same time,
Through the earphones 4 and 4, it is possible to hear a sound suitable for the image.

According to the display of this embodiment, the viewer can support it on his / her face and use it, and since the positional relationship of the display units 2 and 3 with respect to both eyes of the viewer is constant, the viewer is a video cassette player. Although there is a limit to the length of the connection cable for connecting to etc., you can easily enjoy viewing images in a relatively free posture and free position. Also,
Since the display units 2 and 3 are close to both eyes,
Since the viewing angle can be widened, that is, the solid angle of the image can be widened, a more powerful image can be obtained. Also, since no polarization filter is used,
Bright images can be obtained.

Furthermore, since the display unit is close to the eyes,
The backlight source L needs only to have a low brightness, and the power consumption can be reduced accordingly. Further, since the thin film type backlight is laminated on the liquid crystal display part, the whole can be made light and compact. As shown by the chain double-dashed line in FIG. 2, an image magnifying lens 6 may be arranged in front of each display unit, and if this lens is arranged, the image is magnified and the image is richer in stereoscopic effect. Is possible.

[0016]

As described above, according to the present invention,
A powerful, relatively bright image with excellent three-dimensional effect is obtained, and the viewer's position and posture are highly flexible, lightweight,
It is possible to provide a compact three-dimensional display capable of reducing power consumption. When an image magnifying lens is provided in front of each display unit, a larger stereoscopic image can be obtained.

When a pair of left and right phones for generating stereo sound is provided, the sound can be heard simultaneously with the image observation by the audio signal provided from the video player or the like, and the viewer can enjoy watching the movie.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view of each display unit in FIG.

FIG. 3 is an explanatory diagram of a conventional example.

[Explanation of symbols]

 1 frame 11 vine part 2 left eye display part 3 right eye display part L backlight light source LD liquid crystal display part 4 earphones 5 video cassette player 6 lens

Claims (3)

[Claims] 1. The whole is formed in a goggle shape, has a display unit for displaying a left-eye image at a position corresponding to the left eye, and displays a right-eye image at a position corresponding to the right eye. A three-dimensional display having a display unit, each of the display units being a liquid crystal display unit having a backlight light source composed of a thin film type EL element. 2. The three-dimensional display according to claim 1, further comprising an image magnifying lens provided in front of each display unit. 3. The three-dimensional display according to claim 1, further comprising a pair of left and right phones for generating stereo sound.