KR20160106971A - Multi-screen system using overlapping-projection method - Google Patents

Multi-screen system using overlapping-projection method Download PDF

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Publication number
KR20160106971A
KR20160106971A KR1020150029776A KR20150029776A KR20160106971A KR 20160106971 A KR20160106971 A KR 20160106971A KR 1020150029776 A KR1020150029776 A KR 1020150029776A KR 20150029776 A KR20150029776 A KR 20150029776A KR 20160106971 A KR20160106971 A KR 20160106971A
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South Korea
Prior art keywords
image
projector
screen
projecting
side screen
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KR1020150029776A
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Korean (ko)
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전수연
고광민
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주식회사 레드로버
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Priority to KR1020150029776A priority Critical patent/KR20160106971A/en
Publication of KR20160106971A publication Critical patent/KR20160106971A/en

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2073—Polarisers in the lamp house
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B35/00—Stereoscopic photography
    • G03B35/18—Stereoscopic photography by simultaneous viewing
    • G03B35/20—Stereoscopic photography by simultaneous viewing using two or more projectors
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B35/00—Stereoscopic photography
    • G03B35/18—Stereoscopic photography by simultaneous viewing
    • G03B35/26—Stereoscopic photography by simultaneous viewing using polarised or coloured light separating different viewpoint images
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
    • H04N13/106—Processing image signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3167—Modulator illumination systems for polarizing the light beam

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Projection Apparatus (AREA)

Abstract

[0001] The present invention relates to a multi-faceted image tube system of an overlapping projection method, and more particularly, to a multi-faceted image tube system of an overlapping projection system, in which an image is superimposed and projected in the same area, To a multi-faceted video tube system.
A multi-view image system using an overlap projection method according to an embodiment of the present invention includes a side screen unit positioned on the left or right side of a front screen; And a projector unit for projecting an image on the side screen unit, wherein the projector unit comprises: a first projector for projecting a first image on the side screen; And a second projector for projecting the first image on an area where the image is projected by the first projector on the side screen.

Description

[0002] Multi-screen system using overlapping-projection method [

[0001] The present invention relates to a multi-faceted image tube system of an overlapping projection method, and more particularly, to a multi-faceted image tube system of an overlapping projection system in which a plurality of images are superimposed and projected on the same area, To a multi-faceted video tube system.

The image of the movie theater was a basic structure of a conventional movie theater with a screen installed on the front of the audience. However, in recent years, attempts have been made to various types of movie theaters to enhance the interest of viewers who appreciate movies through three-dimensional images or movements of audience seats.

Particularly, in the past, only one screen was installed on the front. In recent years, attempts have been made to display more realistic images or more images by installing screens on the side or upper surface of a movie theater.

1 is a view showing a basic configuration of a conventional multi-faceted video tube system disclosed in Korean Patent Laid-Open Publication No. 2014-0010877.

Referring to FIG. 1, it can be seen that the image screen is implemented by installing the side screen 10 as well as the front screen 10a based on the audience seat 90 of the movie theater. In the conventional multi- The screen is installed on the side and the image projected on a plurality of screens is implemented in various ways to enhance the interest of the audience.

Korean Patent Laid-Open Publication No. 10-2014-0010877 entitled "Multi- However, in the conventional multi-view image system, a side image is divided into a plurality of screens and each image is projected to each divided area. 2 is a view showing a plurality of images divided on a side screen in a conventional multi-faceted video tube system. The side screen is typically inclined at a constant angle to the rear, depending on the angle at which the viewer's chair is installed. The size of the side screen can be made larger than the size of the front screen, considering that the shape of the movie theater is generally longer than the front side. As shown in FIG. 2, the side screen 10 is used in a divided manner to divide a side screen of a conventional movie theater. The reason why the side screen is divided into such a large number of regions is that the size of the image projected on the side screen is small. When projecting images on the side screen If you project too far, the image quality will deteriorate. In order to prevent this, the image is projected close to the screen. In this case, the size of the image projected on the screen can not be reduced. As a result, since the size of the image projected on the screen is small, there is a limit in that it is necessary to separate the image into a large number of regions and project the image in order to display the image on the large side screen. However, there is a problem that occurs when projecting an image into a large number of regions. The superimposed area 13 of four images as well as the superimposed area 11 of the two images are generated. Even if various measures are taken to compensate for the overlapping area of the four images, there is a problem in solving the problem of image degradation due to overlapping of the screen. Another problem that arises when separating images into such a large number of areas is that the screen is separated not only in the left and right direction but also in the up and down direction. When projecting an image by separating the screen in the vertical direction, as shown in FIG. 3, two projectors 21 and 22 for projecting the upper image and the lower image are installed. However, the screen projecting angle of the two projectors installed in this way becomes considerably large as? 1. If the screen projection angles of the two projectors are different from each other, the projected angle of each projector is different and the correction values of the projected images on the screen are different from each other. Therefore, the process of correcting the image distortion of the two projectors becomes complicated There is a problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide an overlay projection type multi-view image system which can easily correct an image by minimizing an area overlapping a side screen.

A multi-view image system using an overlap projection method according to an embodiment of the present invention includes a side screen unit positioned on the left or right side of a front screen; And a projector unit for projecting an image on the side screen unit, wherein the projector unit comprises: a first projector for projecting a first image on the side screen; And a second projector for projecting the first image on an area where the image is projected by the first projector on the side screen.

In a preferred embodiment, the side screen is divided into N planes, and N projector units for projecting respective images on the divided planes are provided, and each of the projector units projects images on the divided planes, Two projectors are provided.

In a preferred embodiment, the side screen is divided into N sides in the left-right direction and is not divided in the up-down direction.

In a preferred embodiment, N images projected on the N side screens by the N projector sections are projected so as to overlap each other by 15 to 25% in the lateral direction.

In a preferred embodiment, the first projector projects a right eye image, and the second projector projects a left eye image.

In a preferred embodiment, a polarizing filter is provided on the front surface of the projector.

In a preferred embodiment, the apparatus further includes polarizing filter moving means for moving the polarizing filters installed on the front surfaces of the projectors.

In a preferred embodiment, the side screen uses a silver screen with a high reflectance of light.

According to the present invention, even if a projector having the same performance is used, a method of projecting the same image on the same area with two projectors is used, so that a larger image can be projected on a side screen have. Since the size of the image projected on the side screen can be increased, the number of divided images can be reduced. As a result, it is possible to prevent occurrence of image distortion caused by overlapping of four images by preventing a portion where four images are overlapped among the images projected on the side screen.

In addition, according to the present invention, since two projectors project the same area, even if one projector fails, the remaining projectors project an image in the same area, so that the resolution is somewhat lowered. However, There is an advantage that the image can be projected without interruption until the failed projector is replaced, thereby allowing a certain amount of time to repair the failed projector.

In addition, according to the present invention, since the difference in the image projection angle between the two projectors for projecting images on the side screen is small, it is possible to solve the difficulty of correction that occurs when the image projection angles of the two projectors are large.

In addition, according to the present invention, since two projectors can be projected to the same area in a divided area of the side screen, when the two projectors are used as a right-eye image projection and a left-eye image projection projector, It is possible to project the light from the light source.

1 is a view showing a conventional multi-faceted image system,
2 is a diagram illustrating a screen division method of a conventional multi-view video system,
3 is a view showing a projection angle of a projector of a conventional multi-view image system,
FIG. 4 is a diagram illustrating a screen division method according to the multi-view image tube system of the overlap projection system according to the embodiment of the present invention,
5 is a view showing a projection angle of a projector according to an overlapping projection type multi-view image tube system according to an embodiment of the present invention,
FIG. 6 is a view illustrating an arrangement of a projector and a side screen according to an exemplary embodiment of the present invention. Referring to FIG.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to or limited by the embodiments. Like reference symbols in the drawings denote like elements.

[First Embodiment]

FIG. 4 is a view illustrating a screen division method according to an overlapping projection type multi-view video tube system according to an embodiment of the present invention. FIG. 5 is a view illustrating a screen division method according to an embodiment of the present invention. FIG. 6 is a view showing the arrangement of the projector and the side screen according to the multi-view image tube system of the overlap projection system according to the embodiment of the present invention.

Referring to the drawings, an overlapping projection type multi-faceted image tube system according to an embodiment of the present invention includes a side screen unit 100 positioned on the left or right side of a front screen and a side screen unit 100 disposed on the side screen unit 100, And a projector unit 200.

The projector unit 200 includes a first projector 210 and a second projector 220. The first projector 210 is for projecting a first image to the side screen unit 100 and the second projector 220 is for projecting the image by the first projector 210 of the side screen unit 100 And projecting the first image onto an area where the image is projected. That is, the first projector 210 and the second projector 220 are designed to superimpose the same image on the same area of the side screen unit 100.

4 shows a state in which an image is projected by dividing the side screen unit 100 into three planes 101, 102, and 103. FIG. When the side screen unit 100 is divided into three planes as shown in FIG. 4, two projectors are required for each divided plane, so that six projectors are required as a whole.

Two projectors for projecting each divided plane will project the same image. The reason why the same image is projected on the same area is as follows.

When projecting an image on one surface 101 divided by a single projector, the size of the screen becomes large and the quality of the image deteriorates unless a very high-performance and expensive projector is used. Therefore, in order to improve the image quality, it is necessary to reduce the size of the image projected by the projector. However, when the size of the image is reduced as described above, there arises a problem in that not only the area where the two images overlap each other but also the area where the four images overlap each other occurs, which is a problem occurring in the related art.

However, in the case of using two projectors which project the same image on the same area as in the present invention, it is possible to solve the problem of image quality degradation that occurs when an image is projected by one projector by projecting two images in a superimposed manner It becomes possible. Therefore, when two or more low-end projectors are used to project the same image on the same area, the image quality of a much larger area can be improved compared with a case of projecting only one projector, even if a very high- You will be able to show images.

As shown in FIG. 4, in the embodiment of the present invention, a larger screen can be projected on the side screen using two projectors, so that the screen can be divided and projected only in the left and right directions As a result, it is possible to prevent a problem that a region in which four images overlap each other occurs.

In the multi-faceted image tube system according to the embodiment of the present invention, a portion in which two images are overlapped is generated. In this case, it is preferable that each of the images overlap each other in the left and right direction by about 20%.

6 shows that two projectors project the same image on the same area on each of the side screens divided into three sides.

[Second Embodiment]

In the case of projecting the same image on the same area using two projectors as in the embodiment of the present invention, it is also possible to project the stereoscopic image on the side screen using these two projectors.

When one of the two projectors is used for projecting the right eye image and the other is used for projecting the left eye image, the right eye image and the left eye image can be projected on the same screen area, so that the stereoscopic image can be projected using the same.

In order to realize a stereoscopic image, a polarizing filter (not shown) is mounted on the front side of the projectors. Two projectors are equipped with polarizing filters having different polarization angles, and an image is projected. The audience uses polarized glasses having polarization angles corresponding to these polarizing filters to view the images, projecting the stereoscopic images on the side screens, This stereoscopic image is implemented to enjoy.

Polarizing filter moving means (not shown) for moving the polarizing filter are provided on the front side of the polarizing filter of the projectors. The polarizing filter moving means is for moving the polarizing filter in the lateral direction from the front portion of the projector. When a stereoscopic image is realized using two projectors, the polarizing filter is positioned on the front side of the projectors by using the polarizing filter moving means, and when a two-dimensional image is implemented without implementing a stereoscopic image, Means for moving the polarizing filter from the front side to the side of the projectors so that images projected through the projectors are not projected through the polarizing filter.

Although not shown specifically in the embodiment of the present invention, the polarizing filter moving means is a component that moves the polarizing filter by using mechanical devices such as a motor or a rail. In the embodiment of the present invention, The description will be omitted. However, it is within the scope of the present invention that the position of the polarizing filter is brought to the front or back of the projector regardless of how the polarizing filter moving means is implemented.

The side screen uses a silver screen with a high reflectance of light.

100: side screen unit 200: projector unit
110: image superimposing area 230: screen

Claims (8)

In a multi-faceted video tube system,
A side screen portion located on the left or right side of the front screen; And
And a projector unit for projecting an image on the side screen unit,
The projector unit includes:
A first projector for projecting a first image on the side screen; And
And a second projector for projecting the first image in an area where the image is projected by the first projector on the side screen.
The method according to claim 1,
The side screen is divided into N planes, and N projector units for projecting respective images on the divided planes are provided,
Wherein each of the projector units includes two projectors for projecting the same image on each of the divided planes.
3. The method of claim 2,
Wherein the side screen is divided into N sides in the left-right direction and is not divided in the vertical direction.
3. The method of claim 2,
Wherein the N images projected on the N side screens by the N projector units are projected so that they do not overlap each other in the vertical direction by 15 to 25% system.
The method according to claim 1,
Wherein the first projector projects a right eye image and the second projector projects a left eye image.
6. The method of claim 5,
And a polarizing filter is installed on a front surface of the projectors.
The method according to claim 6,
Wherein the side screen uses a silver screen having a high reflectance of light.
The method according to claim 6,
And polarizing filter moving means for moving the polarizing filters installed on the front surfaces of the projectors.

KR1020150029776A 2015-03-03 2015-03-03 Multi-screen system using overlapping-projection method KR20160106971A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102297915B1 (en) 2020-03-03 2021-09-06 주식회사 코탁스 reflecting system based on six sided cube screens
WO2023003140A1 (en) * 2021-07-21 2023-01-26 삼성전자주식회사 Electronic device and control method therefor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140010877A (en) 2012-07-12 2014-01-27 씨제이씨지브이 주식회사 Multi-projection system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140010877A (en) 2012-07-12 2014-01-27 씨제이씨지브이 주식회사 Multi-projection system

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
그러나, 종래의 다면영상 시스템에서는 통상적으로 측면의 화면을 여러 개의 화면으로 분할하고 각 분할된 영역에 각각의 영상을 투사하는 방식을 사용하게 된다.
그런데 이처럼 많은 수의 영역으로 분리하여 영상을 투사할 경우 발생하는 문제가 있다. 바로 두 개의 영상이 중첩되는 영역(11) 뿐만 아니라 4개의 영상의 중첩되는 영역(13)이 발생한다는 것이다. 이처럼 4개의 영상이 중첩되는 영역이 있을 경우 이를 보정하기 위한 다양한 조치를 취하더라도 화면중첩으로 인한 화질저하의 문제를 해결하기에는 한계가 있다는 문제가 있다.
도 2는 종래의 다면영상관 시스템에서 측면스크린에 분할된 복수 개의 영상이 투사되는 것을 보여주는 도면이다. 측면스크린은 통상적으로 관객의 의자가 설치된 각도에 따라 뒤쪽으로 가면서 일정한 각도로 경사가 지게 된다. 측면스크린의 크기는 통상적으로 영화관의 모양이 전면보다는 측면의 길이가 길다는 것을 고려할 때 그 크기가 전면스크린의 크기보다 크게 구현하는 것이 가능해진다.
도 2에서와 같이 측면스크린(10)을 분할하여 사용하는 것이 종래의 영화관의 측면스크린의 분할방법이다. 측면스크린을 이와 같이 많은 수의 영역으로 분할하여 사용하는 것은 측면스크린에 투사되는 영상의 크기가 작기 때문이다.
따라서 결과적으로 스크린에 투사되는 영상의 크기가 작기 때문에 크기가 큰 측면스크린에 영상을 보여주기 위해서는 많은 수의 영역으로 분리하여 영상을 투사할 수 밖에 없다는 한계가 있다.
또한 이처럼 많은 수의 영역으로 영상을 분리할 경우 발생하는 또하나의 문제점은 스크린을 좌우방향으로뿐만 아니라 상하방향으로도 분리하게 된다는 것이다. 이처럼 스크린을 상하방향으로 분리하여 영상을 투사할 경우 도 3에서 보는바와 같이 상부의 영상과 하부의 영상을 투사하는 두 개의 프로젝터(21, 22)가 설치되게 된다. 그런데 이렇게 설치되는 두 개의 프로젝터의 화면투사각도가 θ1 으로 상당히 크게 된다. 이렇게 두 대의 프로젝터의 화면투사각도 차이가 크면 각 프로젝터가 화면에 투사하는 각도 달라지게 되고 화면에 투사되는 영상의 보정값 역시 서로 달라지게 되므로 이 두 프로젝터의 영상왜곡을 보정하기 위한 과정이 복잡해지게 진다는 문제점이 있다.
측면스크린에 영상을 투사할 때 너무 멀리서 투사하게 되면 영상의 화질이 떨어지게 된다. 이것을 방지하기 위해서는 스크린에서 가까운 곳에서 영상을 투사해 하는데 이 경우 스크린에 투사되는 영상의 크기는 작아질 수 밖에 없다.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102297915B1 (en) 2020-03-03 2021-09-06 주식회사 코탁스 reflecting system based on six sided cube screens
WO2023003140A1 (en) * 2021-07-21 2023-01-26 삼성전자주식회사 Electronic device and control method therefor

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