KR101727287B1 - Multi-Projection System And Method Of Projecting Image Using The Same - Google Patents

Multi-Projection System And Method Of Projecting Image Using The Same Download PDF

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KR101727287B1
KR101727287B1 KR1020100011292A KR20100011292A KR101727287B1 KR 101727287 B1 KR101727287 B1 KR 101727287B1 KR 1020100011292 A KR1020100011292 A KR 1020100011292A KR 20100011292 A KR20100011292 A KR 20100011292A KR 101727287 B1 KR101727287 B1 KR 101727287B1
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South Korea
Prior art keywords
image
projectors
video
multi
plurality
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KR1020100011292A
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Korean (ko)
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KR20110091928A (en
Inventor
김민선
김성은
박영우
김주환
김창원
김경진
남택진
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엘지전자 주식회사
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Abstract

The present invention relates to a multi-projection system and an image projection method using the same. The present invention provides a multi-projection system capable of arbitrarily adjusting the shape and size of an image projected by a user, and an image projection method using the same.

Description

TECHNICAL FIELD [0001] The present invention relates to a multi-projection system and an image projection method using the multi-

The present invention relates to a multi-projection system capable of arbitrarily adjusting the shape and size of an image to be projected by a user, and a method of projecting an image using the same.

A large number of video projectors that project images to an external screen are available, allowing users to enjoy viewing the images beyond the space limitations. However, according to the image projector according to the related art, the shape and size of the projected image are fixed or limited to be changed.

The object of the present invention is to provide a multi-projection system capable of arbitrarily adjusting the shape and size of an image to be projected by a user and an image projection method using the same.

Another object of the present invention is to provide a multi-projection system capable of projecting a plurality of different images and an image projection method using the same.

It is another object of the present invention to provide a multi-projection system that is simple to carry and easy to carry and an image projection method using the same.

The multi-projection system according to an embodiment of the present invention includes three or more image projectors that can be detachably attached to different objects, and each of the three or more image projectors includes three And a sub image corresponding to the unified image is projected so that a single unified image is formed in a polygon having vertexes of more than two points.

According to another aspect of the present invention, there is provided a method of projecting an image in a multi-projection system including three or more image projectors detachably attachable to other objects, Each of the projectors includes: acquiring position information of the other image projectors; Wherein each of the three or more image projectors includes a polygon having vertexes at three or more points corresponding to the three or more image projectors based on the obtained position information, And projecting a sub image corresponding to the unified image so that the three or more image projectors form one unified image in the polygon, respectively.

According to the multi-projection system and the image projection method using the same according to the present invention, the user can arbitrarily adjust the shape and size of the projected image.

According to the present invention, since a plurality of different images can be projected, the user can receive more information through the projection image.

Further, according to the present invention, since the configuration of the multi-projection system can be made very simple, the user can easily carry it.

1 is a diagram showing an example of a system environment to which the present invention is applied.
FIG. 2 is a block diagram of the respective image projectors 10a, 10b, 10c, and 10d according to an exemplary embodiment.
3 shows an example in which the plurality of antennas 110a, 111a, 112a, 113a, 114a, 115a, 116a, and 117a included in the first communication unit 11a are disposed in the first video projector 10a do.
4 illustrates a concept of acquiring position information of the other video projectors 10b, 10c, and 10d using the plurality of antennas 110a, 111a, 112a, 113a, 114a, 115a, 116a, and 117a FIG.
5 is a block diagram of the respective image projectors 10a, 10b, 10c, and 10d according to another embodiment.
FIG. 6 is a block diagram of the server 20 according to an embodiment.
7 is a flowchart of an image projection method using a multi-projection system according to an embodiment of the present invention.
8 to 11 illustrate implementations of an image projection method using a multi-projection system according to an embodiment of the present invention.
12 is a flowchart of an image projection method using a multi-projection system according to another embodiment of the present invention.
FIGS. 13 to 16 show examples in which the multi-projection system disclosed in this document and the image projection method using the same are implemented in the user's real life.

The foregoing objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Like reference numerals designate like elements throughout the specification. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Hereinafter, a multi-projection system according to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

1 is a diagram showing an example of a system environment to which the present invention is applied.

1, a system environment to which the present invention is applied includes a plurality of image projectors 10, a server 20, a remote controller 30, and a network 40 .

The multi-projection system disclosed in this document may include the plurality of video projectors 10 or may include the plurality of video projectors 10 and the server 20, And may include a plurality of video projectors 10, the server 20, and the remote controller 30.

The plurality of video projectors 10 may include at least three video projectors. For example, the plurality of video projectors 10 shown in FIG. 1 are composed of four video projectors 10a, 10b, 10c, and 10d. Hereinafter, the four video projectors 10a, 10b, 10c and 10d are referred to as a first video projector 10a, a second video projector 10b, a third video projector 10c and a fourth video projector 10d .

Each of the image projectors 10a, 10b, 10c, and 10d may be provided with an adhesive material or an object on one side so that it can be attached to or detached from other objects such as a wall surface.

The respective video projectors 10a, 10b, 10c and 10d included in the plurality of video projectors 10 are integrated in a polygon 100 having vertexes corresponding to the plurality of video projectors 10, It is possible to project a sub image corresponding to the unified image so that one image is formed.

FIG. 2 is a block diagram of the respective image projectors 10a, 10b, 10c, and 10d according to an exemplary embodiment.

2, each of the image projectors 10a, 10b, 10c and 10d includes a wireless communication unit 11, an image projection unit 12, an acoustic output unit 13, a memory 14, a control unit 15, And a power supply unit 19. Hereinafter, the configuration of each of the video projectors 10a, 10b, 10c, and 10d will be described in detail with reference to the first video projector 10a.

The wireless communication unit 11 may include a first communication unit 11a, a second communication unit 11b, and a third communication unit 11c.

The first communication unit 11a enables wireless communication between the first video projector 10a and the other video projectors 10b, 10c, and 10d. That is, the first communication unit 11a includes a communication module for transmitting and receiving data to and from the other video projectors 10b, 10c, and 10d. The first communication unit 11a may include a plurality of antennas 110a, 111a, 112a, 113a, 114a, 115a, 116a, and 117a, as described later with reference to FIG.

The second communication unit 11b includes a communication module for receiving the unified video or the content corresponding to the sub video. The second communication unit 11b may receive the content from the server 20 or receive the content from the network 40. [

For example, the second communication unit 11b can communicate with the network 40 by a TCP (Transmission Control Protocol) / IP (Internet Protocol) communication method. At this time, the network 40 corresponds to the internet.

Also, for example, the second communication unit 11b can receive a broadcast from a broadcast network. In the case of the bi-directional broadcasting network, the second communication unit 220 can receive the broadcasting from the bi-directional broadcasting network and transmit the information through the bi-directional broadcasting network.

For example, the second communication unit 11b can communicate with the server 20 by a wired or wireless communication method.

The third communication unit 11c includes a communication module for communicating with the remote controller 30. [ The third communication unit 11c can communicate with the remote controller 30 by various communication methods.

For example, the third communication unit 11c can communicate with the remote controller 30 by a short-range wireless communication method. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, etc. may be used as the short-range wireless communication method.

The image projection unit 12 includes a projection module for performing a beam projection removal function, that is, an image projection function. The projection module enlarges the input image and irradiates the enlarged image to the external screen. To this end, the projection module may include a beam generator for converting the input image into light, and at least one lens for projecting the light from the beam generator. The image projection unit 12 may include at least one projection module.

The sound output unit 13 can output audio data received from the outside or stored in the memory 14. [ The sound output module 13 may output an acoustic signal related to a function performed by the first video projector 10a. The sound output unit 13 may include a receiver, a speaker, a buzzer, and the like. Also, the sound output unit 13 can output sound through the earphone jack. The user can connect the earphone to the earphone jack and hear the sound output.

The memory 14 may store a program for the operation of the control unit 15 and temporarily store or permanently store input / output data (for example, the contents).

The memory 14 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory) (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The first video projector 10a operates in association with a web storage that performs a storage function of the memory 14 on the Internet or a memory 22 included in the server 20, As shown in FIG.

The controller 15 controls the overall operation of the first video projector 10a. The control unit 15 may include a multimedia module 16 for multimedia playback.

The power supply unit 19 receives external power and internal power under the control of the controller 15 and supplies power required for operation of the respective components. The power supply unit 19 may receive power from the outside by wire or wireless power communication and supply power necessary for operation of each component included in the first video projector 10a.

The various embodiments described herein may be implemented in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described in this document may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays Microprocessors, microprocessors, electrical units for performing functions, etc. In some cases, such an embodiment may be implemented using any of a variety of hardware, May be implemented by the control unit 15.

In accordance with a software implementation, embodiments such as procedures or functions may be implemented with separate software modules that perform at least one function or operation. The software code may be implemented by a software application written in a suitable programming language. Also, the software code may be stored in the memory 14 and executed by the control unit 15. [

3 shows an example in which the plurality of antennas 110a, 111a, 112a, 113a, 114a, 115a, 116a, and 117a included in the first communication unit 11a are disposed in the first video projector 10a do.

3, the plurality of antennas 110a, 111a, 112a, 113a, 114a, 115a, 116a, and 117a are arranged annularly along the outer periphery of the first video projector 10a having a circular cross section . The spacing between the plurality of antennas 110a, 111a, 112a, 113a, 114a, 115a, 116a, 117a may be constant or not constant.

The control unit 15 controls the operation of the other video projectors 10b, 10c, and 10d by transmitting and receiving a radio signal through at least one of the plurality of antennas 110a, 111a, 112a, 113a, 114a, 115a, And the distance information between the other video projectors 10b, 10c, and 10d.

In this way, the controller 15 can acquire positional information of the other video projectors 10b, 10c, and 10d including the direction information and the distance information.

4 illustrates a concept of acquiring position information of the other video projectors 10b, 10c, and 10d using the plurality of antennas 110a, 111a, 112a, 113a, 114a, 115a, 116a, and 117a FIG.

4, the second video projector 10b, the third video projector 10c, and the fourth video projector 10d, like the first video projector 10a, Respectively.

For example, referring to FIG. 4, the second video projector 10b includes a plurality of antennas corresponding to reference numerals 110b to 117b, and the third video projector 10c includes a plurality of antennas corresponding to reference numerals 110c to 117c And the fourth video projector 10d may include a plurality of antennas corresponding to reference numerals 110d to 117d.

For example, referring to FIG. 4, the controller 15 of the first video projector 10a performs a wireless communication with the second video projector 10b, It can be appreciated that the intensity of the signal received via the particular antenna 112a is greater than the intensity of the signal received via the different antennas 111a, 112a, 113a, 114a, 115a, 116a, 117a.

Therefore, the control unit 15 of the first video projector 10a is located in the direction in which the specific antenna 112a is disposed, and the second video projector 10b is located in the direction in which the specific antenna 112a is disposed. The position can be determined.

Also, the controller 15 of the first video projector 10a may acquire distance information with respect to the second video projector 10b using the intensity of a signal received through the specific antenna 112a.

Therefore, the controller 15 of the first video projector 10a may be configured such that the second video projector 10b is separated by the obtained distance in the direction in which the specific antenna 112a is disposed, The position of the video projector 10b can be finally determined.

As described above, the plurality of video projectors 10a, 10b, 10c, and 10d can acquire positional information of each other.

In FIG. 4, in each of the video projectors 10a, 10b, 10c and 10d, the antennas used for obtaining the position information of the other video projectors are visually distinguished from the other antennas.

For example, the antennas used for acquiring the position information of the other video projectors 10b, 10c, and 10d in the first video projector 10a are antennas corresponding to the reference numerals 112a, 113a, and 114a. Similarly, the second video projector 10b includes antennas corresponding to reference numerals 114b, 115b, and 116b, the third video projector 10c includes antennas corresponding to reference numerals 110c, 116c, and 117c, The projector 10d can use the antennas corresponding to the reference numerals 110d, 111d and 112d to obtain position information of the other video projectors.

5 is a block diagram of the respective image projectors 10a, 10b, 10c, and 10d according to another embodiment.

5, each of the image projectors 10a, 10b, 10c and 10d includes a wireless communication unit 11, an image projection unit 12, an acoustic output unit 13, a memory 14, a control unit 15, A light emitting portion 17, a light receiving portion 18, and a power supply portion 19. Hereinafter, the configuration of each of the video projectors 10a, 10b, 10c, and 10d will be described in detail with reference to the first video projector 10a.

The block diagram shown in FIG. 5 is the same as the block configuration shown in FIG. 1 except for the light emitting portion 17 and the light receiving portion 18. FIG. Hereinafter, the configuration of the first video projector 10a will be described, focusing on the functions and roles of the light emitting unit 17 and the light receiving unit 18. FIG.

The light emitting portion 17 can irradiate a beam of a specific frequency band such as infrared rays. The light receiving unit 18 is a module for receiving beams emitted from light emitting units provided in the other video projectors 10b, 10c, and 10d.

The light emitting portion 17 and the light receiving portion 18 may have a similar arrangement structure to the arrangement of the antennas shown in FIG.

The control unit 15 controls the other video projectors 10b and 10c (not shown) by beam emission and light reception through the light emitting unit 17 and the light receiving unit 18 in a manner similar to that described with reference to FIGS. , And 10d can be obtained. That is, the control unit 15 can acquire position information of the other video projectors 10b, 10c, and 10d using the intensity and direction of the received beam.

The multi-projection system disclosed in this document may include the server 20 as described above.

In the case where the multi-projection system includes the server 20, the server 20 performs wired or wireless communication with the plurality of video projectors 10a, 10b, 10c, and 10d, It is possible to control the projectors 10a, 10b, 10c and 10d or supply the contents to at least one of the plurality of video projectors 10a, 10b, 10c and 10d.

The content supplied by the server 20 is finally provided to all of the plurality of video projectors 10a, 10b, 10c and 10d so that the content provided to each of the plurality of video projectors 10a, 10b, 10c and 10d And may be irradiated in the form of a beam through the image projection unit 12. [

FIG. 6 is a block diagram of the server 20 according to an embodiment.

Referring to FIG. 6, the server 20 may include a communication unit 21, a memory 22, and a control unit 23.

The communication unit 21 may communicate with at least one of the plurality of video projectors 10a, 10b, 10c, and 10d and may receive various multimedia contents through communication with the network 40. [ The communication unit 21 communicates with the remote controller 30 to transmit a control signal transmitted from the remote controller 30 to the plurality of video projectors 10a, 10b, 10c, and 10d, And may control the plurality of video projectors 10a, 10b, 10c, and 10d according to the control signal.

The memory 22 may store a program for the operation of the control unit 23 and temporarily store or permanently store input / output data (for example, the contents).

The memory 22 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory) (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The server 20 may operate in association with a web storage that performs a storage function of the memory 22 on the Internet.

The control unit 23 controls the overall operation of the server 20. The control unit 23 may include a multimedia module 25 for multimedia playback.

The multi-projection system disclosed in this document may include the remote controller 30 as described above.

The remote controller 30 communicates directly with at least one of the plurality of video projectors 10a, 10b, 10c and 10d to control the plurality of video projectors 10a, 10b, 10c and 10d Control signals may be generated and transmitted to the plurality of video projectors 10a, 10b, 10c, and 10d.

The remote controller 30 may also control the plurality of video projectors 10a, 10b, 10c, and 10d by transmitting the control signal to the server 20 through communication with the server 20 .

Hereinafter, a specific operation of the multi-projection system according to the present invention and an image projection method using the multi-projection system will be described in detail with reference to necessary drawings.

7 is a flowchart of an image projection method using a multi-projection system according to an embodiment of the present invention. 8 to 11 illustrate implementations of an image projection method using a multi-projection system according to an embodiment of the present invention.

An image projection method using a multi-projection system according to an embodiment of the present invention can be implemented in the system environment described with reference to FIGS. 1 to 6. FIG. Hereinafter, an image projection method using a multi-projection system according to an embodiment of the present invention and an operation of the multi-projection system for implementing the method will be described in detail with reference to necessary drawings.

Referring to FIG. 7, each of the plurality of video projectors 10a, 10b, 10c, and 10d acquires position information of other video projectors (S100). The method of acquiring the position information is as described above with reference to FIGS.

The plurality of video projectors 10a, 10b, 10c, and 10d can determine the direction and size of a sub-image to be projected, respectively, based on the position information (S110).

For example, referring to FIG. 8, each of the plurality of video projectors 10a, 10b, 10c, and 10d includes a plurality of video projectors 10a, 10b, 10c, , B, C, and D) as a vertex, the sub-image may be projected on the unified image so that one image is formed in the polygon (100).

Here, the plurality of points A, B, C, and D may be a point at which the plurality of image projectors are located or a predetermined distance from the corresponding image projector inward toward the polygon 100 , d), as shown in FIG.

The content to be projected is determined through the plurality of video projectors 10a, 10b, 10c, and 10d (S120).

The above step S120 may be performed by a user operating the remote controller 30 to select a specific content. Also, the step S120 may be performed according to a predetermined setting such as a broadcast or download reservation function.

For example, the content may be determined by any one of the plurality of video projectors 10a, 10b, 10c, and 10d by a specific video projector (for example, the first video projector 10a). The first video projector 10a receives the content from the network 40 or the server 20 via the second communication unit 11b and transmits the content to the other video projector 11a through the first communication unit 11a. (10b, 10c, 10d). ≪ / RTI >

The plurality of video projectors 10a, 10b, 10c, and 10d may respectively project a sub image corresponding to the determined content according to the determined direction and size (S130).

For example, an image formed in the polygon 100 shown in FIG. 8 is a single unified image created by a plurality of sub images projected by the plurality of image projectors 10a, 10b, 10c, and 10d, respectively.

9 and 10 show other examples implemented by the multi-projection system and the image projection method using the same according to the present invention.

For example, referring to FIG. 9, three video projectors 10a, 10b, and 10c can implement a single unified image within the triangle 110. [

For example, referring to FIG. 10, five video projectors 10a, 10b, 10c, 10d, and 10e can implement a single unified image within the pentagon 120. FIG.

In FIGS. 8 to 10, although a unified image is implemented in each polygon 100, 110, and 120, the size of the unified image and the polygon 100, 110, and 120 are not physically perfectly matched It is clear that there is a possibility.

As described above, the plurality of video projectors 10a, 10b, 10c, 10d, and 10e disclosed in this document can be detachably attached to a wall, a desk, and other specific objects.

Therefore, the user can use the at least three image projectors among the plurality of image projectors 10a, 10b, 10c, 10d, and 10e to project the image in a desired shape and size as shown in FIG. 8 to FIG. Enjoy.

For example, referring to FIG. 9, it is assumed that the first to third image projectors 10a, 10b, and 10c are attached to a wall surface. At this time, if the user moves the first image projector 10a in a direction opposite to the polygon 110 and attaches the first image projector 10a to the wall surface, the first to third image projectors 10a, 10b, and 10c automatically And can project an image so as to conform to a newly formed polygon.

That is, at least one of the plurality of video projectors 10a, 10b, 10c, 10d, and 10e is out of communication distance or power is off Or if at least one position of the plurality of video projectors 10a, 10b, 10c, 10d, and 10e is changed, the step S100 and the step S110 are repeated and the step S130 is performed.

FIG. 11 shows other examples implemented by the multi-projection system according to the present invention and the image projection method using the same.

11 shows a case where two different images are provided using six video projectors 10a, 10b, 10c, 10d, 10e and 10f.

In FIG. 11, the second video projector 10b and the fifth video projector 10e include two projection modules, so that two different images can be simultaneously inspected.

12 is a flowchart of an image projection method using a multi-projection system according to another embodiment of the present invention.

An image projection method using a multi-projection system according to another embodiment of the present invention can be implemented in the system environment described with reference to FIGS. 1 to 6. FIG. Hereinafter, an image projection method using a multi-projection system according to another embodiment of the present invention and an operation of the multi-projection system for implementing the method will be described in detail with reference to necessary drawings.

Referring to FIG. 12, the server 20 can acquire position information of the plurality of video projectors 10a, 10b, 10c, and 10d (S200).

The server 20 receives the positional information of the plurality of video projectors 10a, 10b, 10c and 10d obtained in the above-described manner from at least one of the plurality of video projectors 10a, 10b, 10c and 10d can do.

The server 20 determines whether or not each of the image projectors 10a, 10b, 10c, and 10d is to be projected on the basis of the obtained position information of the plurality of video projectors 10a, 10b, 10c, The direction and the size can be determined (S210). The server 20 can determine the contents to be searched through the video projectors 10a, 10b, 10c, and 10d (S220).

Since steps S210 and S220 correspond to steps S110 and S120 described above, further detailed description will be omitted.

The server 20 further includes a video projector 10a, 10b, 10c and 10d for projecting a sub-image corresponding to the determined content to form a single unified image, , 10b, 10c, and 10d (S240).

FIGS. 13 to 16 show examples in which the multi-projection system disclosed in this document and the image projection method using the same are implemented in the user's real life.

Fig. 13 shows examples of how a user enjoys a video image in a living room, Fig. 14 shows a kitchen, Fig. 15 shows a restaurant, and a multi-projection system and an image projection method using the same.

16 shows an example in which two different unified images are formed using six video projectors 10a, 10b, 10c, 10d, 10e, and 10f, as described above.

Depending on the number of video projectors, two or more unified images may be formed and provided to the user.

At least one of the plurality of video projectors 10a, 10b, 10c, 10d, 10e and 10f has the sound output unit 13 and outputs an audio signal through the sound output unit 13 It is possible.

The above-described image projection method of the multi-projection system according to the present invention can be provided by being recorded on a computer-readable recording medium as a program to be executed by a computer.

The image projection method of the multi-projection system according to the present invention can be executed through software. When executed in software, the constituent means of the present invention are code segments that perform the necessary tasks. The program or code segments may be stored in a processor readable medium or transmitted by a computer data signal coupled with a carrier wave in a transmission medium or a communication network.

A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored. Examples of the computer-readable recording device include a ROM, a RAM, a CD-ROM, a DVD 占 ROM, a DVD-RAM, a magnetic tape, a floppy disk, a hard disk, The computer-readable recording medium may also be distributed to networked computer devices so that computer readable code can be stored and executed in a distributed manner.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The present invention is not limited to the drawings. In addition, the embodiments described in this document can be applied to not only the present invention, but also all or some of the embodiments may be selectively combined so that various modifications can be made.

10: plurality of video projectors 20: server
30: remote controller 40: network (Internet, broadcasting network, etc.)
11: wireless communication unit 12: image projection unit
13: Audio output unit 14: Memory
15: control unit 17:
18: light receiving section 19: power supply section

Claims (18)

  1. And three or more image projectors that can be detachably attached to the wall surface,
    Wherein each of the three or more video projectors is configured to generate a sub video image corresponding to the unified video image so that a single image unified in a polygon having vertexes at three or more points corresponding to the three or more video projectors is formed, Is projected,
    Wherein each of the three or more video projectors comprises:
    A plurality of antennas disposed annularly along an outer periphery of the image projector having a circular cross section;
    An image projection unit for projecting the sub image; And
    Acquiring position information including direction information on another image projector and distance information between the other image projectors by transmitting and receiving a radio signal between at least three of the plurality of video projectors through at least one of the plurality of antennas, And a controller for projecting the sub image into the polygon determined based on the obtained position information to control the image projection unit so that the shape of the projected images becomes the polygon.
  2. The method of claim 1,
    Wherein each of the three or more image projectors is located at a position where the three or more image projectors are located or a predetermined distance from each of the three or more image projectors in the interior direction of the polygon.
  3. delete
  4. delete
  5. delete
  6. The apparatus of claim 1,
    Wherein each of the three or more image projectors further includes a light emitting portion and a light receiving portion,
    Wherein the position information is acquired by beam emission and light reception between the three or more image projectors through the light emitting unit and the light receiving unit.
  7. 7. The light-emitting device according to claim 6, wherein the light-
    A plurality of image projectors are provided in each of the three or more image projectors,
    The control unit acquires the position information including the direction information for the other video projector and the distance information between the other video projector and the other video projector by transmitting and receiving beams through at least one of the light emitting units and the light receiving units A projection optical system for projecting the multi-projection optical system;
  8. The video projector according to claim 1,
    And a second communication unit for receiving the content corresponding to the unified video or the sub video
    Further multi-projection systems.
  9. 9. The apparatus according to claim 8,
    And wherein at least one of an angle and a direction in which the image projector projects the sub image is controlled so that the unified image is formed in the polygon.
  10. 10. The method of claim 9,
    A server for transmitting the unified image or the content corresponding to the sub-image to at least one of the three or more image projectors,
    Further multi-projection systems.
  11. The apparatus of claim 1, wherein the specific image projector among the three or more image projectors comprises:
    And receives a content corresponding to the unified image from a server included in the multi-projection system or from outside the multi-projection system, and transmits the received content to the remaining video projectors.
  12. 2. The multi-projection system according to claim 1,
    Wherein at least two video projectors are disposed at the same distance as the two unified video images when at least six video projects are arranged so as to form two different unified video images, And at least two image projection sections,
    Wherein each of the at least two image projection units includes a plurality of image projectors each having at least six points corresponding to the at least six image projectors so as to form a single unified image in a plurality of polygons formed separately, And the sub-image is projected in the opposite direction.
  13. The method according to claim 1,
    Further comprising a remote controller for controlling at least one of the three or more image projectors,
    Wherein at least one of the three or more image projectors further comprises a third communication unit for communicating with the remote controller.
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Citations (2)

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WO2008004438A1 (en) * 2006-07-03 2008-01-10 Panasonic Corporation Projector system and video image projecting method
US20080013053A1 (en) 2006-07-13 2008-01-17 Anson Chad R System and Method for Automated Display Orientation Detection and Compensation

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Publication number Priority date Publication date Assignee Title
WO2003098344A1 (en) * 2002-05-21 2003-11-27 Matsushita Electric Industrial Co., Ltd. Image display device, multi-display device, and luminance management device
KR101265950B1 (en) * 2007-09-18 2013-05-23 삼성전자주식회사 Projector and method of controlling projection by the projector

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008004438A1 (en) * 2006-07-03 2008-01-10 Panasonic Corporation Projector system and video image projecting method
US20080013053A1 (en) 2006-07-13 2008-01-17 Anson Chad R System and Method for Automated Display Orientation Detection and Compensation

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