IP Library Granted Patent US 8,714,746
Granted Patent B2
US 8,714,746 · App. 13/667,364 · Granted May 6, 2014

Multi-projection system

Inventors: Yoo Hwan Choi (Goyang-si, KR); In Jae Seong (Seoul, KR); Hwan Chul Kim (Seoul, KR); Su Ryeon Kang (Goyang-si, KR)
Assignee: CJ CGV Co., Ltd.
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Quick Facts
Patent No.
US 8,714,746
App. No.
13/667,364
Granted
May 6, 2014
Kind
B2
Abstract

A multi-projection system having a plurality of projection surfaces onto which images are projected is provided, where the plurality of projection surfaces are disposed on two or more sides not parallel to each other. The multi-projection system provides high three-dimensional images and a high degree of immersion in images and further provides multi-view images, thereby making theater customers feel like they really exist in the space described through the images.

Claims (19)

1. A multi-projection system, comprising:

a plurality of projectors for projecting images onto a plurality of projection surfaces, wherein at least some of the projection surfaces are not parallel to each other,

wherein the projection surfaces are composed of at least a screen surface in a theater and at least one other surface in the theater which is made of a different material from the screen surface,

wherein images projected onto said at least one other surface are corrected based on properties of the material of said other surface to create images that are more harmonious with those images being projected on the screen surface, and

wherein images projected onto said at least one other surface are complimentary images to those images being projected onto the screen surface so as to create a total image which provides three-dimensional effects by projecting different images onto the plurality of projection surfaces.

2. The multi-projection system according to claim 1 , wherein the images projected onto the projection surfaces are sub-images which are divided from one image.

3. The multi-projection system according to claim 1 , wherein a main image is reproduced on one of the projection surfaces disposed at a front side while images with special effects are being reproduced on remaining ones of the projection surfaces disposed at lateral sides.

4. The multi-projection system according to claim 1 , wherein the correction is performed in accordance with reflection ratio of the projection surfaces.

5. The multi-projection system according to claim 1 , wherein one projector is provided for each projection surface.

6. The multi-projection system according to claim 1 , wherein the number of projection surfaces disposed on certain side is provided plurally.

7. The multi-projection system according to claim 1 , wherein the screen is made of PVC, white-coated PVC, pearl-coated PVC, or aluminum-coated PVC.

8. The multi-projection system according to claim 1 , wherein the correction is performed in accordance with the colors of the projection surfaces.

9. The multi-projection system according to claim 1 , wherein the correction is performed in accordance with the materials of the projection surfaces.

10. The multi-projection system according to claim 1 , wherein the correction is performed in accordance with the shapes of the projection surfaces.

11. The multi-projection system according to claim 1 , wherein the correction is performed in accordance with the distances between the projection surfaces and the projectors caused by the positions of the projectors or in accordance with the image projection angles.

12. The multi-projection system according to claim 1 , wherein each wall surface comprises a sound-absorbing material.

13. The multi-projection system according to claim 12 , wherein the sound-absorbing material comprises any one of a porous sound-absorbing material, a vibrating plate sound-absorbing material, and a resonant sound-absorbing material.

14. The multi-projection system according to claim 1 , wherein each wall surface is coated with optical paint for light reflection.

15. The multi-projection system according to claim 1 , wherein the total image provides three-dimensional effects without use of a stereoscopic projection system.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 14, 2023
From: CJ CGV CO., LTD.
To: CJ 4DPLEX CO., LTD.
Reel/Frame 063086/0682 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 6, 2013
From: CHOI, YOO HWAN; SEONG, IN JAE; KIM, HWAN CHUL; KANG, SU RYEON
To: CJ CGV CO., LTD.
Reel/Frame 029935/0220 →
Priority Claims (2)
KR 10-2012-0076100 · Jul 12, 2012 · national
KR 10-2012-0081376 · Jul 25, 2012 · national
Continuity (1)
Related Publication 20140016099A1 · Jan 16, 2014