WO2001092920A2

WO2001092920A2 - Display apparatus for management of a 3-dimensional image

Info

Publication number: WO2001092920A2
Application number: PCT/KR2001/000944
Authority: WO
Inventors: Byoung Yi Youn
Original assignee: Georae. Ltd.
Priority date: 2000-06-02
Filing date: 2001-06-02
Publication date: 2001-12-06
Also published as: KR20010109814A; WO2001092920A3; CN1392970A; AU6277901A; JP2003535558A; EP1287403A2

Abstract

An apparatus for displaying a 3-dimensional image includes left and right plane image display devices for simultaneously outputting left and right plane images received with respect to a same object from the left and right sides to a screen, left and right image inverting apparatuses for inverting original left and right images and outputting the inverted images to the left and right plane image display devices, a left reflection mirror, on which an image output for the left plane image display device is incident at a predetermined angle and by which the left image is reflected at the same angle, so that the left image is perceived by a left eye of a viewer, and a right reflection mirror, on which an image output from the right plane image display device is incident at a predetermined angle and by which the right image is reflected at the same angle, so that the right image is perceived by a right eye of a viewer. Thus, unlike the conventional 3-D display apparatus having a complicated structure but no general usability, a 3-D image can be easily realized without additional apparatuses by arranging the two plane image display devices and image inverting apparatuses to the left and right sides and the reflection mirrors in the middle therebetween and adjusting the incident and reflection angles of the reflection mirrors.

Description

DISPLAY APPARATUS FOR MANAGEMENT 3-DIMENTIONAL IMAGE

Technical Field

The present invention relates to an apparatus for displaying a 3-D (3 -dimensional) image, and more particularly, to an apparatus for displaying a 3-D image by combining two typical mirrors and two plane image display devices.

Background Art

A 3-D image provides a viewer with a sense of depth and distance between objects in an image, as well as a sense of 3 dimension with respect to each of objects or persons in the image. Presently, most images are provided only in 2 dimension and various studies have been carried out to overcome such a limit. Most technologies which enables a 3-D image are based on a fact that a human has two eyes. The principle of perceiving an object in 3 dimension by a human lies in that two eyes which are horizontally apart a predetermined distance from each other, for example, about 7.5 cm and 5 cm for grown-ups and kids, respectively, see an object through the retina at different angles. An image of the object one sees is transferred to the cerebrum via visual nerve.

Thus, in a conventional method of providing a 3-D image to a viewer, two images are presented in a shutter or refraction manner so as to be seen independently by the left and right eyes.

Although there was a conventional method of realizing a 3-D image by using LCD eyeglasses, this additional apparatus is not commonly used and has a limit in use thereof. Even when this conventional apparatus is used, if separation of the left and right images is not complete, images are overlapped each other or an image flickers due to an optical interference phenomenon.

Disclosure of the Invention

To solve the above problems, it is an object of the present invention to provide an apparatus for displaying a 3-D image by combining two reflection mirrors, two image inverting apparatuses, and two 2-dimensional display apparatuses.

It is another object of the present invention to provide an apparatus for displaying a 3-D image which includes a plurality of reflection mirrors, a plurality of image inverting apparatuses, and a plurality of 2-dimensional display apparatuses, and combines different images output from the 2-dimensional display apparatuses to display a 3-D image.

To achieve the above objects, there is provided an apparatus for displaying a 3 -dimensional image comprising left and right plane image display devices for simultaneously outputting left and right plane images received with respect to a same object from the left and right sides to a screen, left and right image inverting apparatuses for inverting original left and right images and outputting the inverted images to the left and right plane image display devices, a left reflection mirror, on which an image output from the left plane image display device is incident at a predetermined angle and by which the left image is reflected at the same angle, so that the left image is perceived by a left eye of a viewer, and a right reflection mirror, on which an image output from the right plane image display device is incident at a predetermined angle and by which the right image is reflected at the same angle, so that the right image is perceived by a right eye of a viewer. It is preferred in the present invention that positions of the left and right plane image display devices and the left and right reflection mirrors are automatically or manually adjusted to maintain the incident angle of an image input to each of the left and right reflection mirrors from the left and right plane image display devices to be the same as the reflection angle of an image reflected by each of the left and right reflection mirrors which is to be seen by each of the left and right eyes of a viewer.

It is preferred in the present invention that the left and right plane image display devices are any of image processing apparatuses selected among television monitors, big-screen wall mount TVs, computer monitors, and LCDs.

It is preferred in the present invention that, in the left and right reflection mirrors, the incident angle of the left and right plane images and the reflection angle of the images reflected to the viewer are adjusted in a range of 30°- 50°

It is preferred in the present invention that the apparatus further comprises inverting apparatuses for inverting the original images and outputting the inverted images to the left and right plane image display devices so that inverted images are output from the left and right plane image display devices.

To achieve the above objects, there is provided an apparatus for displaying a 3 -dimensional image comprising first left and right plane image display devices for simultaneously outputting same plane images from the left and right sides, second left and right plane image display devices for simultaneously outputting same plane images from the left and right sides which are different from the images output from the first left and right plane image display devices, left and right image inverting apparatuses for inverting original left and right images, a first left reflection mirror for synthesizing an image output from the left plane image display device after inverted by the left image inverting apparatus which is incident at a predetermined angle and the original image output from the second left plane image display device which is incident at a predetermined angle, and reflecting the synthesized image, a first right reflection mirror for synthesizing an image output from the right plane image display device after inverted by the right image inverting apparatus which is incident at a predetermined angle and the original image output from the second right plane image display device which is incident at a predetermined angle, and reflecting the synthesized image, a second left reflection mirror, on which the left synthesized image output from the first left reflection mirror is incident at a predetermined angle and by which the left synthesized image is reflected at the same angle, so that the left synthesized image is perceived by a left eye of a viewer, and a second right reflection mirror, on which the right synthesized image output from the first right reflection mirror is incident at a predetermined angle and by which the right synthesized image is reflected at the same angle, so that the right synthesized image is perceived by a right eye of a viewer.

It is preferred in the present invention that the apparatus further comprises at least one pair of left and right plane image display devices and at least one pair of left and right inverting apparatuses.

It is preferred in the present invention that the apparatus further comprises at least one pair of reflection mirrors.

It is preferred in the present invention that the first left reflection mirror and the first right reflection mirror are semi-permeable mirrors. It is preferred in the present invention that the semi-permeable mirror exhibits a transmittance of 50% and reflectance of 50%.

It is preferred in the present invention that, in the first and second left and right reflection mirrors, the incident angle of the left and right plane images and the reflection angle of the images reflected to the viewer are adjusted in a range of 30°- 50°. Brief Description of the Drawings FIG. 1 is a view showing the configuration of an apparatus for displaying a 3-D image according to the present invention, in which each of an incident angle and a reflection angle is 45°; FIG. 2 is a view showing the configuration of an apparatus for displaying a 3-D image according to the present invention, in which each of an incident angle and a reflection angle is 30°;

FIG. 3 is a block diagram for explaining steps of inversion and re-inversion of an image according to the present invention; FIG. 4 is a view showing the configuration of an apparatus for displaying a 3-D image according to a preferred embodiment of the present invention to realize synthesis of images; and

FIG. 5 is a view showing the configuration of an apparatus for displaying a 3-D image according to another preferred embodiment of the present invention to realize synthesis of images.

Best mode for carrying out the Invention

Referring to FIG. 1, a left plane display device 10 and a right plane display device

20 may be any of typical television monitors, wall-mount flat TVs, computer monitors, and LCD image output devices. Also, a variety of image output devices for outputting a

2-dimensional plane image only can be selected. Images are inverted by left and right inverting apparatuses 11 and 12 and input to the left and right plane display devices 10 and 20, respectively. The inverted images output from the left and right plane display devices 10 and 20 are incident at an angle of 45° on a left reflection mirror 25 and a right reflection mirror 30 disposed at the center of the apparatus (60 and 70) and then inverted. The inverted images are transferred to each of left and right eyes 40 and 50 of a viewer who watches the image as the original image, by being reflected by the left and right reflection mirrors 20 and 30 at an angle of 45° which is the same as the incident angle. According to a visual transfer process in a human body, images perceived by eyes are transferred to the cerebrum as a left virtual image 80 and a right virtual image 90 by crossing each other. Therefore, by an image synthesizing process, plane images are perceived as a 3-dimensinal image (95).

Preferably, the positions of the left and right inverting apparatuses 11 and 22, the left and right plane display apparatuses 10 and 20, and the left and right reflection mirrors 25 and 30 can be are adjusted automatically or manually such that the incident angle and reflection angle of images are maintained to be identical. The incident angle and reflection angle are preferably adjusted within a range of 30 - 50°. In FIG. 1, the incident angle and reflection angle are adjusted by 45°. Also, the left and right reflection mirrors 25 and 30 are preferably arranged to be N-shaped with respect to a viewer. Typical 100% reflection mirrors are used as the reflection mirrors.

The present invention does not adopt a conventional digital image synthesizing method, but realizes a 3-D image 95 with improved image quality in a mechanical method, that is, by reflecting plane images input from both sides by using mirrors. Also, the present invention is advantageous in that the size of a screen can be adjusted by adjusting the angle of the mirrors. Also, since the width of a screen can be adjusted freely, a 3-D image can be displayed on a large screen without using an additional apparatus such as a lens or prism, and glasses for view. Further, the distance from the display apparatus and the screen can be adjusted and a focus type 3-D image and a balance type 3-D image can be displayed. Further, a still image and a motion picture can be displayed in 3 dimension. FIG. 2 shows the configuration of an apparatus for displaying a 3-D image according to the present invention, in which each of an incident angle and a reflection angle is 30°. Referring to FIG. 2, a left plane display device 10a and a right plane display device 20a may be any of typical television monitors, wall-mount flat TVs, computer monitors, and LCD image output devices. Also, a variety of image output devices for outputting a 2-dimensional plane image only can be selected. Images are inverted by left and right inverting apparatuses 11a and 12a and output from the left and right plane display devices 10a and 20a. The inverted images output from the left and right plane display devices 10a and 20a are incident on left and right reflection mirrors 25a and 30a disposed at the center at an arbitrary angle of 30° (60a and 70a) and reflected at the same angle to be transferred to each of left and right eyes 40a and 50a of a viewer who watches the image. According to a visual transfer process in a human body, images perceived by eyes are transferred to the cerebrum as a left virtual image 80a and a right virtual image 90a by crossing each other. Therefore, by an image synthesizing process (95a), plane images are perceived as a 3-dimensinal image.

Preferably, the positions of the left and right plane display apparatuses 10a and 20a and the left and right reflection mirrors 25a and 30a can be adjusted automatically or manually such that the incident angle and reflection angle of images are maintained to be identical. The incident angle and reflection angle are preferably adjusted within a range of 30 - 50°. In FIG. 1, the incident angle and reflection angle are adjusted by 30°. Also, the left and right reflection mirrors 25a and 30a are preferably arranged to be V-shaped with respect to a viewer. Typical reflection mirrors are used as the reflection mirrors.

FIG. 3 is a block diagram for explaining steps of inversion and re-inversion of an image according to the present invention. According to FIG. 3, after a left image 100a is generated (100), the left image 100a is inversion processed (101) to generate an inverted left image 102a. When the inverted left image 102a is output from a left image output apparatus 103 and reflected by a reflection mirror, the inverted left image 102a is re-inverted (104) and restored to the original left image 105. The restored original image is perceived by a left eye 106. Meanwhile, a right image 110a is generated (110) and inversion processed (111) to generate an inverted right image 112a. When the inverted right image 112a is output from a right image output apparatus 113 and reflected by a reflection mirror, the reflected image is re-inverted (114) and restored to the original image 115. The restored original image is perceived to a right eye 116.

The left image and right image individually inverted and re-inverted and finally perceived by the left and right eyes 106 and 116 are synthesized into a virtual image and is perceived as a 3-D image 120, so that the purpose of the present invention Is sufficiently achieved.

Also, an image display apparatus to realize synthesis of images according to the present invention will now be described with reference to FIGS. 4 and 5. FIG. 4 is a view showing the configuration of an apparatus for displaying a 3-D image according to a preferred embodiment of the present invention to realize synthesis of images. As shown in FIG. 4, a first left plane image display device 10b, a second left plane image display device 15b, a first right plane image display device 20b, and a second right plane image display device 25b may be any of typical television monitors, wall-mount flat TVs, computer monitors, and LCD image output devices. Also, a variety of image output devices for outputting a 2-dimensional plane image only can be selected.

The first left plane image display device 10b receives an image which is inversion processed by an inverting apparatus l ib, and outputs the received inverted image to be input to a reflection mirror 36b. The second left plane image display device 15b outputs the original image to be input to the reflection mirror 36b. Here, a semi-permeable mirror having a transmittance of 50% and a reflectance of 50% is used as the reflection mirror 36b so that images output from the first left plane image display device 10b and the second left plane image display device 15b are synthesized.

The first right plane image display device 20b receives an image which is inversion processed by an inverting apparatus 22b, and outputs the received inverted image to be input to a reflection mirror 31b. The second right plane image display device 25b outputs the original image to be input to the reflection mirror 31b. Here, a semi-permeable mirror having a transmittance of 50% and a reflectance of 50% is used as the reflection mirror 31b so that images output from the first right plane image display device 20b and the second right plane image display device 25b are synthesized.

Thus, the images respectively synthesized by the reflection mirrors 36b and 31b are incident on a left reflection mirror 35b and a right reflection mirror 30b at an identical angle of 45° (60b and 70b), inverted and reflected thereby at the same angle as the incident angle (62b and 72b), and transferred to left and right eyes 40b and 50b of a viewer who watches the image as the original image. According to a visual transfer process in a human body, images perceived by eyes are transferred to the cerebrum as a left virtual image 80b and a right virtual image 90b by crossing each other. Therefore, by an image synthesizing process, plane images are perceived as a 3-dimensinal image (95b). ^■ Preferably, the positions of the first and second left and right inverting apparatuses

10b, 15b, 20b, and 25b, the inverting apparatuses l ib, 16b, 22b, and 26b, and the left and right reflection mirrors 30b, 31b, 35b, and 36b can be are adjusted automatically or manually such that the incident angle and reflection angle of images are maintained to be identical. The incident angle and reflection angle are preferably adjusted within a range of 30 - 50°. In FIG. 4, the incident angle and reflection angle are adjusted by 45°. Also, the left and right reflection mirrors 35b and 30b are preferably arranged to be V-shaped with respect to a viewer. Typical 100% reflection mirrors are used as the reflection mirrors. Also, a semi-permeable mirror having a transmittance of 50%) and a reflectance of 50%) can be used as the reflection mirrors 36b and 3 lb. FIG. 5 is a view showing the configuration of an apparatus for displaying a 3-D image according to another preferred embodiment of the present invention to realize synthesis of images. As shown in FIG. 5, a first left plane image display device 10c, a second left plane image display device 15 c, a third left plane image display device 17c, a first right plane image display device 20c, a second right plane image display device 25c, and a third plane right image display device 27c may be any of typical television monitors, wall-mount flat TVs, computer monitors, and LCD image output devices. Also, a variety of image output devices for outputting a 2-dimensional plane image only can be selected.

The second left plane image display device 15c outputs the original image to a reflection mirror 37c. The third left plane image display device 17c outputs an image which is inversion processed by an inverting apparatus 18c to the reflection mirror 37c.

Here, a semi-permeable mirror having a transmittance of 50% and a reflectance of 50%> can be used as the reflection mirror 37c, so that imaged output from the second left plane image display device 15c and the third left plane image display device 17c are synthesized. The image synthesized by the reflection mirror 37c is incident on a reflection mirror 36c. The first left plane image display device 10c outputs an image which is inversion processed by the inverting apparatus l ie, to the reflection mirror 36c. Here, a semi-permeable mirror having a transmittance of 50%> and a reflectance of 50% can be used as the reflection mirror 36c, so that imaged synthesized by the reflection mirror 37c and the image output from the first left plane image display device 10c are synthesized. The second right plane image display device 25c outputs the original image to a reflection mirror 32c. The third right plane image display device 27c outputs an image which is inversion processed by an inverting apparatus 28c to the reflection mirror 32c. Here, a semi-permeable mirror having a transmittance of 50% and a reflectance of 50% can be used as the reflection mirror 32c, so that imaged output from the second right plane image display device 25c and the third right plane image display device 27c are synthesized.

The image synthesized by the reflection mirror 32c is incident on a reflection mirror 31c. The first right plane image display device 20c outputs an image which is inversion processed by the inverting apparatus 22c, to the reflection mirror 31c. Here, a semi-permeable mirror having a transmittance of 50% and a reflectance of 50% can be used as the reflection mirror 31c, so that imaged synthesized by the reflection mirror 32c and the image output from the first right plane image display device 20c are synthesized.

Thus, the images synthesized by the reflection mirror 36c and the reflection mirror 31c are incident on the left reflection mirror 35c and the right reflection mirror 30c which are disposed at the center, at the same angle of 45° (60c and 70c), respectively, and then inverted. The inverted images are reflected at the same angle as the incident angle (62c and 72c) and transferred to the left and right eyes 40c and 50c of a viewer who watches a screen, as the original images. According to a visual transfer process in a human body, images perceived by eyes are transferred to the cerebrum as a left virtual image 80c and a right virtual image 90c by crossing each other. Therefore, by an image synthesizing process, plane images are perceived as a 3-dimensinal image (95c).

Preferably, the positions of the plane display devices 10c, 15c, 17c, 20c, 25c, and 27c, the inverting apparatuses l ie, 16c, 18c, 22c, 26c, and 28c, and the reflection mirrors 30c, 31c, 32c, 35c, 36c, and 37c can be are adjusted automatically or manually such that the incident angle and reflection angle of images are maintained to be identical. The incident angle and reflection angle are preferably adjusted within a range of 30 - 50°. In FIG. 5, the incident angle and reflection angle are adjusted by 45°. Also, the left and right reflection mirrors 35c and 30c are preferably arranged to be V-shaped with respect to a viewer. Typical 100%) reflection mirrors are used as the reflection mirrors. Also, a semi-permeable mirror having a transmittance of 50% and a reflectance of 50%> can be used as the reflection mirrors 36c, 37c, 31c, and 32c.

While this invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Industrial Applicability As described above, in the apparatus for displaying a 3-D image according to the present invention, unlike the conventional 3-D display apparatus having a complicated structure but no general usability, a 3-D image can be easily realized without additional apparatuses by arranging the two plane image display devices and image inverting apparatuses to the left and right sides and the reflection mirrors in the middle therebetween and adjusting the incident and reflection angles of the reflection mirrors. The apparatus for displaying a 3-D image according to the present invention can be used for a head mounted display, a 3-D game console, a 3-D video broadcasting apparatus, a computer 3-D image communication apparatus, and various simulators.

Claims

What is claimed is:

1. An apparatus for displaying a 3 -dimensional image comprising: left and right plane image display devices for simultaneously outputting left and right plane images received with respect to a same object from the left and right sides to a screen; left and right image inverting apparatuses for inverting original left and right images and outputting the inverted images to the left and right plane image display devices; a left reflection mirror, on which an image output from the left plane image display device is incident at a predetermined angle and by which the left image is reflected at the same angle, so that the left image is perceived by a left eye of a viewer; and a right reflection mirror, on which an image output from the right plane image display device is incident at a predetermined angle and by which the right image is reflected at the same angle, so that the right image is perceived by a right eye of a viewer.

2. The apparatus as claimed in claim 1, wherein positions of the left and right plane image display devices and the left and right reflection mirrors are automatically or manually adjusted to maintain the incident angle of an image input to each of the left and right reflection mirrors from the left and right plane image display devices to be the same as the reflection angle of an image reflected by each of the left and right reflection mirrors which is to be seen by each of the left and right eyes of a viewer.

3. The apparatus as claimed in claim 1 or 2, wherein the left and right plane image display devices are any of image processing apparatuses selected among television monitors, big-screen wall mount TVs, computer monitors, and LCDs.

4. The apparatus as claimed in claim 1 or 2, wherein, in the left and right reflection mirrors, the incident angle of the left and right plane images and the reflection angle of the images reflected to the viewer are adjusted in a range of 30°- 50°.

5. The apparatus as claimed in claim 1, further comprising inverting apparatuses for inverting the original images and outputting the inverted images to the left and right plane image display devices so that inverted images are output from the left and right plane image display devices.

6. A An apparatus for displaying a 3-dimensional image comprising: first left and right plane image display devices for simultaneously outputting same plane images from the left and right sides; second left and right plane image display devices for simultaneously outputting same plane images from the left and right sides which are different from the images output from the first left and right plane image display devices; left and right image inverting apparatuses for inverting original left and right images; a first left reflection mirror for synthesizing an image output from the left plane image display device after inverted by the left image inverting apparatus which is incident at a predetermined angle and the original image output from the second left plane image display device which is incident at a predetermined angle, and reflecting the synthesized image; a first right reflection mirror for synthesizing an image output from the right plane image display device after inverted by the right image inverting apparatus which is incident at a predetermined angle and the original image output from the second right plane image display device which is incident at a predetermined angle, and reflecting the synthesized image; a second left reflection mirror, on which the left synthesized image output from the first left reflection mirror is incident at a predetermined angle and by which the left synthesized image is reflected at the same angle, so that the left synthesized image is perceived by a left eye of a viewer; and a second right reflection mirror, on which the right synthesized image output from the first right reflection mirror is incident at a predetermined angle and by which the right synthesized image is reflected at the same angle, so that the right synthesized image is perceived by a right eye of a viewer.

7. The apparatus as claimed in claim 5, further comprising at least one pair of left and right plane image display devices and at least one pair of left and right inverting apparatuses.

8. The apparatus as claimed in claim 7, further comprising at least one pair of reflection mirrors.

9. The apparatus as claimed in claim 6, wherein the first left reflection mirror and the first right reflection mirror are semi-permeable mirrors.

10. The apparatus as claimed in claim 9, wherein the semi-permeable mirror exhibits a transmittance of 50%) and reflectance of 50%).

11. The apparatus as claimed in claim 6, wherein, in the first and second left and right reflection mirrors, the incident angle of the left and right plane images and the reflection angle of the images reflected to the viewer are adjusted in a range of 30°- 50°.